1
|
Sin-Soler M, Lara A, Ribera M. Atypical Molluscum Contagiosum in a Psoriatic Patient on Biological Therapy. Actas Dermosifiliogr 2024:S0001-7310(24)00060-7. [PMID: 38311225 DOI: 10.1016/j.ad.2024.01.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/01/2023] [Accepted: 01/10/2024] [Indexed: 02/10/2024] Open
Affiliation(s)
- M Sin-Soler
- Department of Dermatology, Consorci Corporació Sanitària Parc Taulí, Sabadell, Spain.
| | - A Lara
- Department of Dermatology, Consorci Corporació Sanitària Parc Taulí, Sabadell, Spain
| | - M Ribera
- Department of Dermatology, Consorci Corporació Sanitària Parc Taulí, Sabadell, Spain
| |
Collapse
|
2
|
Sin-Soler M, Romaní J, Gamissans M, Riera-Martí N, Lara A, Ribera M. [Translated article] Immune-Mediated Skin Reactions to Tumor Necrosis α Inhibitors: A Review of 30 Cases. Actas Dermo-Sifiliográficas 2024; 115:T21-T27. [PMID: 37923081 DOI: 10.1016/j.ad.2023.10.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 06/25/2023] [Indexed: 11/07/2023] Open
Abstract
BACKGROUND Tumor necrosis factor α (TNF) inhibitors are used to treat different inflammatory diseases. Although these biologics have an adequate safety profile, they have been associated with paradoxical reactions. MATERIAL AND METHODS Retrospective review of patients on TNF inhibitor therapy who developed a paradoxical skin reaction and were seen at the dermatology department of Hospital Universitari Parc Taulí in Sabadell, Spain. RESULTS We collected data on 30 patients under treatment with a TNF inhibitor who developed an immune-mediated skin reaction in the form of psoriasis (90%), alopecia (6.7%), or neutrophilic dermatitis (3.3%). The most common drugs involved were adalimumab (56.7%) and infliximab (40%). Psoriasiform reactions mostly manifested as generalized plaques (62.9%) or palmoplantar pustulosis (37%). Thirteen patients (43.3%) continued on the same TNF inhibitor and 12 of them (92.3%) achieved partial or complete resolution of lesions. Five patients were switched to a different TNF inhibitor, but none of them achieved complete resolution. Eight patients were switched to a biologic with a different target, and 5 of them (62.5%) achieved partial or complete resolution. CONCLUSIONS Paradoxical reactions during TNF inhibitor therapy do not always require a change of treatment. In our series, the addition of a topical and/or systemic treatment resolved the skin lesions in more than half of the patients, and switching to a drug with a different target was more effective. A change of strategy should be contemplated in more serious cases.
Collapse
Affiliation(s)
- M Sin-Soler
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, Spain.
| | - J Romaní
- Servicio de Dermatología, Hospital General de Granollers, Granollers, Barcelona, Spain
| | - M Gamissans
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, Spain
| | - N Riera-Martí
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, Spain
| | - A Lara
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, Spain
| | - M Ribera
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, Spain
| |
Collapse
|
3
|
Sin-Soler M, Romaní J, Gamissans M, Riera-Martí N, Lara A, Ribera M. Immune-Mediated Skin Reactions to Tumor Necrosis α Inhibitors: A Review of 30 Cases. Actas Dermosifiliogr 2024; 115:21-27. [PMID: 37437689 DOI: 10.1016/j.ad.2023.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 06/23/2023] [Accepted: 06/25/2023] [Indexed: 07/14/2023] Open
Abstract
BACKGROUND Tumor necrosis factor α (TNF) inhibitors are used to treat different inflammatory diseases. Although these biologics have an adequate safety profile, they have been associated with paradoxical reactions. MATERIAL AND METHODS Retrospective review of patients on TNF inhibitor therapy who developed a paradoxical skin reaction and were seen at the dermatology department of Hospital Universitari Parc Taulí in Sabadell, Spain. RESULTS We collected data on 30 patients under treatment with a TNF inhibitor who developed an immune-mediated skin reaction in the form of psoriasis (90%), alopecia (6.7%), or neutrophilic dermatitis (3.3%). The most common drugs involved were adalimumab (56.7%) and infliximab (40%). Psoriasiform reactions mostly manifested as generalized plaques (62.9%) or palmoplantar pustulosis (37%). Thirteen patients (43.3%) continued on the same TNF inhibitor and 12 of them (92.3%) achieved partial or complete resolution of lesions. Five patients were switched to a different TNF inhibitor, but none of them achieved complete resolution. Eight patients were switched to a biologic with a different target, and 5 of them (62.5%) achieved partial or complete resolution. CONCLUSIONS Paradoxical reactions during TNF inhibitor therapy do not always require a change of treatment. In our series, the addition of a topical and/or systemic treatment resolved the skin lesions in more than half of the patients, and switching to a drug with a different target was more effective. A change of strategy should be contemplated in more serious cases.
Collapse
Affiliation(s)
- M Sin-Soler
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, España.
| | - J Romaní
- Servicio de Dermatología, Hospital General de Granollers, Granollers, Barcelona, España
| | - M Gamissans
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, España
| | - N Riera-Martí
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, España
| | - A Lara
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, España
| | - M Ribera
- Servicio de Dermatología, Hospital Universitari Parc Taulí, Sabadell, Barcelona, España
| |
Collapse
|
4
|
Gómez-González S, Miranda A, Hoyos-Santillan J, Lara A, Moraga P, Pausas JG. Afforestation and climate mitigation: lessons from Chile. Trends Ecol Evol 2024; 39:5-8. [PMID: 37891076 DOI: 10.1016/j.tree.2023.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/13/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023]
Abstract
The Chilean Climate Change Law excludes tree monocultures as a solution to the climate crisis, offering an opportunity for resilience and climate mitigation in Latin America. The Chilean experience with mega-fires in extensive, homogeneous forest plantations provides important lessons that could inform climate policies in other countries.
Collapse
Affiliation(s)
- S Gómez-González
- Departamento de Biología-IVAGRO, Universidad de Cádiz, Puerto Real, 11510, Spain; Center for Climate and Resilience Research (CR)(2), Santiago, 8370448, Chile; Center for Fire and Socioecological Systems (FireSES), Universidad Austral de Chile, Valdivia, 5110566, Chile.
| | - A Miranda
- Center for Climate and Resilience Research (CR)(2), Santiago, 8370448, Chile; Center for Fire and Socioecological Systems (FireSES), Universidad Austral de Chile, Valdivia, 5110566, Chile; Laboratorio de Ecología del Paisaje y Conservación, Departamento de Ciencias Forestales, Universidad de La Frontera, Temuco, 4811230, Chile
| | - J Hoyos-Santillan
- Center for Climate and Resilience Research (CR)(2), Santiago, 8370448, Chile; Environmental Biogeochemistry Laboratory, GAIA Antarctic Research Centre, Universidad de Magallanes, Punta Arenas, 6200000, Chile; School of Biosciences, University of Nottingham, Sutton Bonington, Loughborough, LE12 5RD, UK; Smithsonian Tropical Research Institute, Ancón, 0843-03092, Panamá
| | - A Lara
- Center for Climate and Resilience Research (CR)(2), Santiago, 8370448, Chile; Center for Fire and Socioecological Systems (FireSES), Universidad Austral de Chile, Valdivia, 5110566, Chile; Laboratorio de Dendrocronología y Cambio Global, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, 5090000, Chile; Fundación Centro de los Bosques Nativos (FORECOS), Isla Teja, Valdivia, 5110206, Chile
| | - P Moraga
- Center for Climate and Resilience Research (CR)(2), Santiago, 8370448, Chile; Centro de Derecho Ambiental, Universidad de Chile, Santiago, 6640022, Chile
| | - J G Pausas
- Center for Fire and Socioecological Systems (FireSES), Universidad Austral de Chile, Valdivia, 5110566, Chile; Centro de Investigaciones sobre Desertificación (CIDE-CSIC), Valencia, 46113, Spain
| |
Collapse
|
5
|
Miranda A, Syphard AD, Berdugo M, Carrasco J, Gómez-González S, Ovalle JF, Delpiano CA, Vargas S, Squeo FA, Miranda MD, Dobbs C, Mentler R, Lara A, Garreaud R. Widespread synchronous decline of Mediterranean-type forest driven by accelerated aridity. Nat Plants 2023; 9:1810-1817. [PMID: 37845335 DOI: 10.1038/s41477-023-01541-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 09/12/2023] [Indexed: 10/18/2023]
Abstract
Large-scale, abrupt ecosystem change in direct response to climate extremes is a critical but poorly documented phenomenon1. Yet, recent increases in climate-induced tree mortality raise concern that some forest ecosystems are on the brink of collapse across wide environmental gradients2,3. Here we assessed climatic and productivity trends across the world's five Mediterranean forest ecosystems from 2000 to 2021 and detected a large-scale, abrupt forest browning and productivity decline in Chile (>90% of the forest in <100 days), responding to a sustained, acute drought. The extreme dry and warm conditions in Chile, unprecedented in the recent history of all Mediterranean-type ecosystems, are akin to those projected to arise in the second half of the century4. Long-term recovery of this forest is uncertain given an ongoing decline in regional water balance. This dramatic plummet of forest productivity may be a spyglass to the future for other Mediterranean ecosystems.
Collapse
Affiliation(s)
- Alejandro Miranda
- Laboratorio de Ecología del Paisaje y Conservación, Departamento de Ciencias Forestales, Universidad de La Frontera, Temuco, Chile.
- Center for Climate and Resilience Research (CR2), Santiago, Chile.
| | - Alexandra D Syphard
- Department of Geography, San Diego State University, San Diego, CA, USA
- Conservation Biology Institute, Corvallis, OR, USA
| | - Miguel Berdugo
- Institute of Integrative Biology, Department of Environment Systems Science, ETH Zurich, Zürich, Switzerland
| | - Jaime Carrasco
- Departamento de Industria, Facultad de Ingeniería, Universidad Tecnológica Metropolitana, Santiago, Chile
| | - Susana Gómez-González
- Center for Climate and Resilience Research (CR2), Santiago, Chile
- Departamento de Biología-IVAGRO, Universidad de Cádiz, Puerto Real, Spain
- Center for Fire and Socioecological Systems (FireSES), Universidad Austral de Chile, Valdivia, Chile
| | - Juan F Ovalle
- Facultad de Ciencias Forestales y de La Conservación de la Naturaleza, Universidad de Chile, Santiago, Chile
- Center of Applied Ecology and Sustainability (CAPES), Santiago, Chile
| | - Cristian A Delpiano
- Departamento de Biología, Facultad de Ciencias, Universidad de La Serena, La Serena, Chile
- Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
| | - Solange Vargas
- Departamento de Química y Biología, Facultad de Ciencias Naturales, Universidad de Atacama, Copiapó, Chile
| | - Francisco A Squeo
- Departamento de Biología, Facultad de Ciencias, Universidad de La Serena, La Serena, Chile
- Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile
| | - Marcelo D Miranda
- Center of Applied Ecology and Sustainability (CAPES), Santiago, Chile
- Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Cynnamon Dobbs
- Department of Natural Resources and the Environment, University of Connecticut, Mansfield, CT, USA
| | - Rayen Mentler
- Center for Climate and Resilience Research (CR2), Santiago, Chile
| | - Antonio Lara
- Center for Climate and Resilience Research (CR2), Santiago, Chile
- Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Valdivia, Chile
- Fundación Centro de los Bosques Nativos FORECOS, Valdivia, Chile
| | - René Garreaud
- Center for Climate and Resilience Research (CR2), Santiago, Chile
- Departamento de Geofísica, Universidad de Chile, Santiago, Chile
| |
Collapse
|
6
|
Miranda A, Hoyos-Santillan J, Lara A, Mentler R, Huertas-Herrera A, Toro-Manríquez MDR, Sepulveda-Jauregui A. Equivalent impacts of logging and beaver activities on aboveground carbon stock loss in the southernmost forest on Earth. Sci Rep 2023; 13:18350. [PMID: 37884596 PMCID: PMC10603114 DOI: 10.1038/s41598-023-45657-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/22/2023] [Indexed: 10/28/2023] Open
Abstract
The conservation of forest landscapes is crucial for global climate strategies, and the forest in Tierra del Fuego, located in Patagonia, represents the southernmost example on Earth. These ecosystems are critical for Chile's roadmap toward carbon neutrality. Unfortunately, these ecosystems have been impacted by logging and beaver activities. Currently, the precise contribution of each driver to forest cover and carbon stock loss remains insufficiently quantified, impeding effective policymaking and the implementation of strategies to safeguard and enhance carbon stocks in these ecosystems. In this study, we conducted an assessment of forest carbon stock loss resulting from both logging and beaver activities in Chilean Tierra del Fuego from 1986 to 2019. While beavers have received significant attention for their substantial contribution to forest cover loss (56.1% forest cover, ≈ 1.4 MtC), our findings suggest that logging has nearly equally contributed to carbon stock depletion (43.8% forest cover, ≈ 1.2 MtC). Consequently, the prevailing focus on beavers has obscured the ongoing logging-induced carbon stock loss. The implications of our study highlight the urgency for comprehensive consideration of both drivers in Chile's climate strategy to fulfill the country's mitigation commitments.
Collapse
Affiliation(s)
- Alejandro Miranda
- Center for Climate and Resilience Research (CR), Santiago, Chile
- Laboratorio de Ecología del Paisaje y Conservación, Departamento de Ciencias Forestales, Universidad de La Frontera, Temuco, Chile
- Environmental Biogeochemistry Laboratory, GAIA Antarctica Research Centre (CIGA-UMAG), University of Magallanes, Punta Arenas, Chile
| | - Jorge Hoyos-Santillan
- Center for Climate and Resilience Research (CR), Santiago, Chile.
- School of Biosciences, University of Nottingham, Sutton, Bonington, UK.
- Environmental Biogeochemistry Laboratory, GAIA Antarctica Research Centre (CIGA-UMAG), University of Magallanes, Punta Arenas, Chile.
| | - Antonio Lara
- Center for Climate and Resilience Research (CR), Santiago, Chile
- Facultad de Ciencias Forestales y Recursos Naturales, Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Valdivia, Chile
- Fundación Centro de los Bosques Nativos FORECOS, Valdivia, Chile
| | - Rayén Mentler
- Center for Climate and Resilience Research (CR), Santiago, Chile
| | - Alejandro Huertas-Herrera
- Grupo Ecología Forestal, Centro de Investigación en Ecosistemas de la Patagonia (CIEP), Coyhaique, Chile
| | - Mónica D R Toro-Manríquez
- Grupo Ecología Forestal, Centro de Investigación en Ecosistemas de la Patagonia (CIEP), Coyhaique, Chile
| | - Armando Sepulveda-Jauregui
- Center for Climate and Resilience Research (CR), Santiago, Chile
- Environmental Biogeochemistry Laboratory, GAIA Antarctica Research Centre (CIGA-UMAG), University of Magallanes, Punta Arenas, Chile
| |
Collapse
|
7
|
Perez-Quezada JF, Barichivich J, Urrutia-Jalabert R, Carrasco E, Aguilera D, Bacour C, Lara A. Warming and drought weaken the carbon sink capacity of an endangered paleoendemic temperate rainforest in South America. J Geophys Res Biogeosci 2023; 128:2022jg007258. [PMID: 37457913 PMCID: PMC7614759 DOI: 10.1029/2022jg007258] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 03/14/2023] [Indexed: 07/18/2023]
Abstract
Measurements of ecosystem carbon (C) fluxes in temperate forests are concentrated in the Northern Hemisphere, leaving the functionally diverse temperate forests in the Southern Hemisphere underrepresented. Here, we report three years (February 2018-January 2021) of C fluxes, studied with eddy-covariance and closed chamber techniques, in an endangered temperate evergreen rainforest of the long-lived paleoendemic South American conifer Fitzroya cupressoides. Using classification and regression trees we analyzed the most relevant drivers and thresholds of daily net ecosystem exchange (NEE) and soil respiration. The annual NEE showed that the forest was a moderate C sink during the period analyzed (-287±38 g C m-2 year -1). We found that the capacity to capture C of the Fitzroya rainforests in the Coastal Range of southern Chile is optimal under cool and rainy conditions in the early austral spring (October-November) and decreases rapidly towards the summer dry season (January-February) and autumn. Although the studied forest type has a narrow geographical coverage, the gross primary productivity measured at the tower was highly representative of Fitzroya and other rainforests in the region. Our results suggest that C fluxes in paleoendemic cool F. cupressoides forests may be negatively affected by the warming and drying predicted by climate change models, reinforcing the importance of maintaining this and other long-term ecological research sites in the Southern Hemisphere.
Collapse
Affiliation(s)
- Jorge F. Perez-Quezada
- Department of Environmental Science and Renewable Natural Resources, University of Chile, Avenida Santa Rosa 11315, Santiago, Chile
- Institute of Ecology and Biodiversity, Victoria 631, Barrio Universitario, Concepción, Chile
- Cape Horn International Institute, Ave. Bulnes 01855, Punta Arenas, Chile
| | - Jonathan Barichivich
- Laboratorio de Dendrocronología y Cambio Global, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile
- Laboratoire des Sciences du Climat et de l’Environnement (LSCE), LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Rocío Urrutia-Jalabert
- Laboratorio de Dendrocronología y Cambio Global, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile
- Departamento de Ciencias Naturales y Tecnología, Universidad de Aysén, Coyhaique, Chile
- Center for Climate and Resilience Research (CR)2, Universidad de Chile, Santiago, Chile
| | - Enrique Carrasco
- Laboratorio de Dendrocronología y Cambio Global, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile
| | - David Aguilera
- Department of Environmental Science and Renewable Natural Resources, University of Chile, Avenida Santa Rosa 11315, Santiago, Chile
| | - Cédric Bacour
- Laboratoire des Sciences du Climat et de l’Environnement (LSCE), LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Antonio Lara
- Laboratorio de Dendrocronología y Cambio Global, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile
- Center for Climate and Resilience Research (CR)2, Universidad de Chile, Santiago, Chile
- Fundación Centro de los Bosques Nativos FORECOS, Valdivia, Chile
| |
Collapse
|
8
|
Urrutia-Jalabert R, Barichivich J, Szejner P, Rozas V, Lara A. Ecophysiological responses of Nothofagus obliqua forests to recent climate drying across the Mediterranean-Temperate biome transition in south-central Chile. J Geophys Res Biogeosci 2022; 128:2022jg007293. [PMID: 37484604 PMCID: PMC7614787 DOI: 10.1029/2022jg007293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 03/02/2023] [Indexed: 07/25/2023]
Abstract
The forests of south-central Chile are facing a drying climate and a megadrought that started in 2010. This study addressed the physiological responses of five Nothofagus obliqua stands across the Mediterranean-Temperate gradient (35.9 ° -40.3° S) using carbon isotope discrimination (Δ13 C) and intrinsic water use efficiency (iWUE) in tree rings during 1967-2017. Moreover, δ18O was evaluated in the northernmost site to better understand the effects of the megadrought in this drier location. These forests have become more efficient in their use of water. However, trees from the densest stand are discriminating more against 13C, probably due to reduced photosynthetic rates associated with increasing competition. The strongest associations between climate and Δ13C were found in the northernmost stand, suggesting that warmer and drier conditions could have reduced 13C discrimination. Tree growth in this site has not decreased, and δ18O was negatively related to annual rainfall. However, a shift in this relationship was found since 2007, when both precipitation and δ18O decreased, while correlations between δ18O and growth increased. This implies that tree growth and δ18O are coupled in recent years, but precipitation is not the cause, suggesting that trees probably changed their water source to deeper and more depleted pools. Our research demonstrates that forests are not reducing their growth in central Chile, mainly due to a shift towards the use of deeper water sources. Despite a common climate trend across the gradient, there is a non-uniform response of N. obliqua forests to climate drying, being their response site specific. Keywords: Tree rings, stable isotopes, tree physiology, climate gradient, megadrought, climate change.
Collapse
Affiliation(s)
- Rocío Urrutia-Jalabert
- Departamento de Ciencias Naturales y Tecnología, Universidad de Aysén, Coyhaique, Chile
- Laboratorio de Dendrocronología y Cambio Global, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile
- Centro de Ciencia del Clima y la Resiliencia, CR2, Santiago, Chile
| | - Jonathan Barichivich
- Laboratoire des Sciences du Climat et de l'Environnement, IPSL, CRNS/CEA/UVSQ, France
- Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Paul Szejner
- Departamento de Ciencias Ambientales y del suelo, Instituto de Geología, Universidad Nacional Autónoma de México. Ciudad Universitaria CDMX, México
| | - Vicente Rozas
- iuFOR-EiFAB, Área de Botánica, Campus Duques de Soria, Universidad de Valladolid, 42004 Soria, Spain
| | - Antonio Lara
- Laboratorio de Dendrocronología y Cambio Global, Instituto de Conservación, Biodiversidad y Territorio, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile
- Centro de Ciencia del Clima y la Resiliencia, CR2, Santiago, Chile
- Fundación Centro de los Bosques Nativos FORECOS, Valdivia, Chile
| |
Collapse
|
9
|
Ortiz G, Bastidas A, Garay-Fernández M, Lara A, Benavides M, Rocha E, Buitrago A, Díaz G, Ordóñez J, Reyes LF. Correlation and validity of imputed PaO2/FiO2 and SpO2/FiO2 in patients with invasive mechanical ventilation at 2600m above sea level. Med Intensiva 2022; 46:501-507. [PMID: 36057441 DOI: 10.1016/j.medine.2021.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 05/04/2021] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To establish the correlation and validity between PaO2/FiO2 obtained on arterial gases versus noninvasive methods (linear, nonlinear, logarithmic imputation of PaO2/FiO2 and SpO2/FiO2) in patients under mechanical ventilation living at high altitude. DESIGN Ambispective descriptive multicenter cohort study. SETTING Two intensive care units (ICU) from Colombia at 2600m a.s.l. PATIENTS OR PARTICIPANTS Consecutive critically ill patients older than 18 years with at least 24h of mechanical ventilation were included from June 2016 to June 2019. INTERVENTIONS None. VARIABLES Variables analyzed were demographic, physiological messures, laboratory findings, oxygenation index and clinical condition. Nonlinear, linear and logarithmic imputation formulas were used to calculate PaO2 from SpO2, and at the same time the SpO2/FiO2 by severe hypoxemia diagnosis. The intraclass correlation coefficient, area under the ROC curve, sensitivity, specificity, positive predictive value, negative predictive value, positive and negative likelihood ratio were calculated. RESULTS The correlation between PaO2/FiO2 obtained from arterial gases, PaO2/FiO2 derived from one of the proposed methods (linear, non-linear, and logarithmic formula), and SpO2/FiO2 measured by the intraclass correlation coefficient was high (greater than 0.77, p<0.001). The different imputation methods and SpO2/FiO2 have a similar diagnostic performance in patients with severe hypoxemia (PaO2/FiO2 <150). PaO2/FiO2 linear imputation AUC ROC 0,84 (IC 0.81-0.87, p<0.001), PaO2/FiO2 logarithmic imputation AUC ROC 0.84 (IC 0.80-0.87, p<0.001), PaO2/FiO2 non-linear imputation AUC ROC 0.82 (IC 0.79-0.85, p<0.001), SpO2/FiO2 oximetry AUC ROC 0.84 (IC 0.81-0.87, p<0.001). CONCLUSIONS At high altitude, the SaO2/FiO2 ratio and the imputed PaO2/FiO2 ratio have similar diagnostic performance in patients with severe hypoxemia ventilated by various pathological conditions.
Collapse
Affiliation(s)
- G Ortiz
- Pulmonary Medicine, Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - A Bastidas
- School of Medicine, Universidad de la Sabana, Clínica Universidad de La Sabana, Chía, Colombia.
| | - M Garay-Fernández
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - A Lara
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - M Benavides
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - E Rocha
- Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - A Buitrago
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - G Díaz
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - J Ordóñez
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - L F Reyes
- School of Medicine, Universidad de la Sabana, Clínica Universidad de La Sabana, Chía, Colombia
| |
Collapse
|
10
|
Alcazar M, Escribano J, Ferré N, Closa-Monasterolo R, Selma-Royo M, Feliu A, Castillejo G, Luque V, Closa-Monasterolo R, Escribano J, Luque V, Feliu-Rovira A, Ferré N, Muñoz-Hernando J, Gutiérrez-Marín D, Zaragoza-Jordana M, Gispert-Llauradó M, Rubio-Torrents M, Núñez-Roig M, Alcázar M, Sentís S, Esteve M, Monné-Gelonch R, Basora J, Flores G, Hsu P, Rey-Reñones C, Alegret C, Guillen N, Alegret-Basora C, Ferre R, Arasa F, Alejos A, Diéguez M, Serrano M, Mallafré M, González-Hidalgo R, Braviz L, Resa A, Palacios M, Sabaté A, Simón L, Losilla A, De La Torre S, Rosell L, Adell N, Pérez C, Tudela-Valls C, Caro-Garduño R, Salvadó O, Pedraza A, Conchillo J, Morillo S, Garcia S, Mur E, Paixà S, Tolós S, Martín R, Aguado F, Cabedo J, Quezada L, Domingo M, Ortega M, Garcia R, Romero O, Pérez M, Fernández M, Villalobos M, Ricomà G, Capell E, Bosch M, Donado A, Sanchis F, Boix A, Goñi X, Castilla E, Pinedo M, Supersaxco L, Ferré M, Contreras J, Sanz-Manrique N, Lara A, Rodríguez M, Pineda T, Segura S, Vidal S, Salvat M, Mimbrero G, Albareda A, Guardia J, Gil S, Lopez M, Ruiz-Escusol S, Gallardo S, Machado P, Bocanegra R, Espejo T, Vendrell M, Solé C, Urbano R, Vázquez M, Fernández-Antuña L, Barrio M, Baudoin A, González N, Olivé R, Lara R, Dinu C, Vidal C, González S, Ruiz-Morcillo E, Ainsa M, Vilalta P, Aranda B, Boada A, Balcells E. Gut microbiota is associated with metabolic health in children with obesity. Clin Nutr 2022; 41:1680-1688. [DOI: 10.1016/j.clnu.2022.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/16/2022] [Accepted: 06/04/2022] [Indexed: 11/03/2022]
|
11
|
Gómez-González S, Paniw M, Blanco-Pastor JL, García-Cervigón AI, Godoy O, Herrera JM, Lara A, Miranda A, Ojeda F, Ochoa-Hueso R. Moving towards the ecological intensification of tree plantations. Trends Plant Sci 2022; 27:637-645. [PMID: 35039247 DOI: 10.1016/j.tplants.2021.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 11/19/2021] [Accepted: 12/10/2021] [Indexed: 06/14/2023]
Abstract
The growing demand for timber and the boom in massive tree-planting programs could mean the spreading of mismanaged tree plantations worldwide. Here, we apply the concept of ecological intensification to forestry systems as a viable biodiversity-focused strategy that could be critical to develop productive, yet sustainable, tree plantations. Tree plantations can be highly productive if tree species are properly combined to complement their ecological functions. Simultaneously considering soil biodiversity and animal-mediated biocontrol will be critical to minimize the reliance on external inputs. Integrating genetic, functional, and demographic diversity across heterogeneous landscapes should improve resilience under climate change. Designing ecologically intensified plantations will mean breaking the timber productivity versus conservation dichotomy and assuring the maintenance of key ecosystem services at safe levels.
Collapse
Affiliation(s)
- Susana Gómez-González
- Departamento de Biología-IVAGRO, Universidad de Cádiz, Campus Río San Pedro, 11510 Puerto Real, Spain; Center for Climate and Resilience Research (CR)2, Blanco Encalada 2002, 8370449 Santiago, Chile; Center for Fire and Socioecological Systems (FireSES), Universidad Austral de Chile, Campus Isla Teja, 5090000 Valdivia, Chile.
| | - Maria Paniw
- Department of Conservation Biology and Global Change, Estación Biológica de Doñana (EBD-CSIC), Avenida Americo Vespucio 26, 41092 Sevilla, Spain
| | - José Luis Blanco-Pastor
- Department of Plant Biology and Ecology, University of Seville, Avenida Reina Mercedes 6, 41012 Seville, Spain
| | - Ana I García-Cervigón
- Biodiversity and Conservation Area, Rey Juan Carlos University, c/ Tulipán s/n, 28933 Móstoles, Spain
| | - Oscar Godoy
- Instituto Universitario de Investigación Marina (INMAR), Departamento de Biología, Universidad de Cádiz, Campus Río San Pedro, 11510 Puerto Real, Spain
| | - José M Herrera
- Mediterranean Institute for Agriculture, Environment and Development and University of Évora, Casa Cordovil, 2nd Floor, R. Dom Augusto Eduardo Nunes 7, 7000 - 651 Évora, Portugal
| | - Antonio Lara
- Center for Climate and Resilience Research (CR)2, Blanco Encalada 2002, 8370449 Santiago, Chile; Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Campus Isla Teja, 5090000 Valdivia, Chile; Fundación Centro de los Bosques Nativos Forecos, Valdivia, Chile
| | - Alejandro Miranda
- Center for Climate and Resilience Research (CR)2, Blanco Encalada 2002, 8370449 Santiago, Chile; Laboratorio de Ecología del Paisaje y Conservación, Departamento de Ciencias Forestales, Universidad de La Frontera, P.O. Box 54-D, 4780000 Temuco, Chile
| | - Fernando Ojeda
- Departamento de Biología-IVAGRO, Universidad de Cádiz, Campus Río San Pedro, 11510 Puerto Real, Spain
| | - Raúl Ochoa-Hueso
- Departamento de Biología-IVAGRO, Universidad de Cádiz, Campus Río San Pedro, 11510 Puerto Real, Spain; Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), P.O. Box 50, 6700 AB, Wageningen, The Netherlands
| |
Collapse
|
12
|
Ortiz G, Bastidas A, Garay-Fernández M, Lara A, Benavides M, Rocha E, Buitrago A, Díaz G, Ordóñez J, Reyes LF. Correlation and validity of imputed PaO2/FiO2 and SpO2/FiO2 in patients with invasive mechanical ventilation at 2600m above sea level. Med Intensiva 2021; 46:S0210-5691(21)00100-5. [PMID: 34167826 DOI: 10.1016/j.medin.2021.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/09/2021] [Accepted: 05/04/2021] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To establish the correlation and validity between PaO2/FiO2 obtained on arterial gases versus noninvasive methods (linear, nonlinear, logarithmic imputation of PaO2/FiO2 and SpO2/FiO2) in patients under mechanical ventilation living at high altitude. DESIGN Ambispective descriptive multicenter cohort study. SETTING Two intensive care units (ICU) from Colombia at 2600m a.s.l. PATIENTS OR PARTICIPANTS Consecutive critically ill patients older than 18 years with at least 24h of mechanical ventilation were included from June 2016 to June 2019. INTERVENTIONS None. VARIABLES Variables analyzed were demographic, physiological messures, laboratory findings, oxygenation index and clinical condition. Nonlinear, linear and logarithmic imputation formulas were used to calculate PaO2 from SpO2, and at the same time the SpO2/FiO2 by severe hypoxemia diagnosis. The intraclass correlation coefficient, area under the ROC curve, sensitivity, specificity, positive predictive value, negative predictive value, positive and negative likelihood ratio were calculated. RESULTS The correlation between PaO2/FiO2 obtained from arterial gases, PaO2/FiO2 derived from one of the proposed methods (linear, non-linear, and logarithmic formula), and SpO2/FiO2 measured by the intraclass correlation coefficient was high (greater than 0.77, p<0.001). The different imputation methods and SpO2/FiO2 have a similar diagnostic performance in patients with severe hypoxemia (PaO2/FiO2 <150). PaO2/FiO2 linear imputation AUC ROC 0,84 (IC 0.81-0.87, p<0.001), PaO2/FiO2 logarithmic imputation AUC ROC 0.84 (IC 0.80-0.87, p<0.001), PaO2/FiO2 non-linear imputation AUC ROC 0.82 (IC 0.79-0.85, p<0.001), SpO2/FiO2 oximetry AUC ROC 0.84 (IC 0.81-0.87, p<0.001). CONCLUSIONS At high altitude, the SaO2/FiO2 ratio and the imputed PaO2/FiO2 ratio have similar diagnostic performance in patients with severe hypoxemia ventilated by various pathological conditions.
Collapse
Affiliation(s)
- G Ortiz
- Pulmonary Medicine, Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - A Bastidas
- School of Medicine, Universidad de la Sabana, Clínica Universidad de La Sabana, Chía, Colombia.
| | - M Garay-Fernández
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - A Lara
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - M Benavides
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - E Rocha
- Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - A Buitrago
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - G Díaz
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - J Ordóñez
- Pulmonary Medicine Universidad El Bosque, Intensive Care Unit, Hospital Santa Clara Bogotá, Colombia
| | - L F Reyes
- School of Medicine, Universidad de la Sabana, Clínica Universidad de La Sabana, Chía, Colombia
| |
Collapse
|
13
|
Escribano-Subias P, López R, Almenar L, Lázaro M, Forn I, Torrent A, Blanco I, Barberà JA, Almenar L, Dobaño JMA, Baloira A, Barbado J, Diaz PB, Blanco I, Blanquer D, Ruiz AJB, Cadenas S, Casado I, Chamorro C, Cifrian JM, Cremer D, Delgado E, Delgado JL, Domingo JA, Escribano P, Arangüena LG, Muñoz JPG, Iturbe D, Lara A, Lázaro M, Meseguer ML, López R, Madroñero A, Marín A, Ferragut LM, Escobar EM, Núñez A, de Saracho y Bobo JO, Peralta CA, Peñate GP, Amigó JP, Rodriguez C, Roig V, Rueda X, Sala E, Simón RS. Changes in REVEAL risk score in patients with pulmonary arterial hypertension treated with macitentan in clinical practice: results from the PRACMA study. BMC Pulm Med 2020; 20:154. [PMID: 32487059 PMCID: PMC7265251 DOI: 10.1186/s12890-020-01197-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 05/22/2020] [Indexed: 12/01/2022] Open
Abstract
Background Macitentan is a dual endothelin receptor antagonist indicated for the long-term treatment of pulmonary arterial hypertension (PAH). We evaluated the change over time in REVEAL risk score in incident and prevalent patients receiving macitentan for the first time. Methods Retrospective, observational study including adult patients with idiopathic/heritable PAH or PAH associated with connective tissue disorders or congenital heart disease treated with macitentan for ≥6-month follow-up in Spain. The REVEAL risk score and risk strata were computed at the start of macitentan and after ≥6-month in patients with ≥7 out of 12 valid REVEAL components. Results Overall, 81 patients (57 for the REVEAL score) were analysed, 77.8% women. The mean age was 57.2 years and 50.6% of patients had idiopathic/heritable PAH. Prevalent patients were 59.3 and 40.7% were incident. Main therapies for PAH included macitentan monotherapy (42.0%) and macitentan in combination with phosphodiesterase type 5 inhibitor (44.4%). With a median time of macitentan treatment of 10.5 months, the mean REVEAL score was 8.7 points at baseline and was 7.2 points after ≥6-month follow-up. The mean change (95% CI) in REVEAL risk score was − 1.4 (− 2.0, − 0.9) points (p < 0.0001), being − 1.8 (− 3.0, − 0.7) points (p = 0.0040) and − 1.2 (− 1.8, − 0.5) points (p = 0.0010), in incident and prevalent patients, respectively. The reduction was also significant by risk stratum (36.8% of patients in the high-very high risk strata at baseline versus 14.0% after ≥6-month, p < 0.05) and therapy group. The REVEAL components that significantly improved were WHO functional class (FC) (63.9% FC III at macitentan initiation and 23.6% after ≥6-month, p < 0.0001), 6-min walk test (mean change: 41.8 m, p < 0.01), brain natriuretic peptide (BNP) or N-terminal proBNP (NT-proBNP) (mean change of − 157.6 pg/mL and − 530.0 pg/mL, respectively, p < 0.05 both), and pulmonary vascular resistance (PVR) (mean change: − 3.4 WU, p < 0.01). Conclusions In this study, treatment with macitentan improved the REVEAL risk strata and score in both incident and prevalent PAH patients, and in all patients regardless of the therapy strategy. Macitentan significantly improved some of REVEAL components including WHO FC, BNP/NT-proBNP, PVR, and 6-min walk test after at least 6-month follow-up.
Collapse
|
14
|
Urrutia-Jalabert R, Lara A, Barichivich J, Vergara N, Rodriguez CG, Piper FI. Low Growth Sensitivity and Fast Replenishment of Non-structural Carbohydrates in a Long-Lived Endangered Conifer After Drought. Front Plant Sci 2020; 11:905. [PMID: 32733500 PMCID: PMC7357304 DOI: 10.3389/fpls.2020.00905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/02/2020] [Indexed: 06/11/2023]
Abstract
There is an ongoing debate on whether a drought induced carbohydrate limitation (source limitation) or a direct effect of water shortage (sink limitation) limit growth under drought. In this study, we investigated the effects of the two driest summers recorded in southern Chile in the last seven decades, on the growth and non-structural carbohydrates (NSC) concentrations of the slow-growing conifer Fitzroya cupressoides. Specifically, we studied the seasonal variation of NSC in saplings and adults one and two years after the occurrence of a 2 year-summer drought at two sites of contrasting precipitation and productivity (mesic-productive vs. rainy-less productive). We also evaluated radial growth before, during and after the drought, and predicted that drought could have reduced growth. If drought caused C source limitation, we expected that NSCs will be lower during the first than the second year after drought. Conversely, similar NSC concentrations between years or higher NSC concentrations in the first year would be supportive of sink limitation. Also, due to the lower biomass of saplings compared with adults, we expected that saplings should experience stronger seasonal NSC remobilization than adults. We confirmed this last expectation. Moreover, we found no significant growth reduction during drought in the rainy site and a slightly significant growth reduction at the mesic site for both saplings and adults. Across organs and in both sites and age classes, NSC, starch, and sugar concentrations were generally higher in the first than in the second year following drought, while NSC seasonal remobilization was generally lower. Higher NSC concentrations along with lower seasonal NSC remobilization during the first post-drought year are supportive of sink limitation. However, as these results were found at both sites while growth decreased slightly and just at the mesic site, limited growth only is unlikely to have caused NSC accumulation. Rather, these results suggest that the post-drought dynamics of carbohydrate storage are partly decoupled from the growth dynamics, and that the rebuild of C reserves after drought may be a priority in this species.
Collapse
Affiliation(s)
- Rocío Urrutia-Jalabert
- Instituto Forestal INFOR, Valdivia, Chile
- Laboratorio de Dendrocronología y Cambio Global, Facultad de Ciencias Forestales y Recursos Naturales, Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Valdivia, Chile
- Centro de Ciencia del Clima y la Resiliencia, CR2, Santiago, Chile
| | - Antonio Lara
- Laboratorio de Dendrocronología y Cambio Global, Facultad de Ciencias Forestales y Recursos Naturales, Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Valdivia, Chile
- Centro de Ciencia del Clima y la Resiliencia, CR2, Santiago, Chile
- Fundación Centro de los Bosques Nativos FORECOS, Valdivia, Chile
| | - Jonathan Barichivich
- Laboratorio de Dendrocronología y Cambio Global, Facultad de Ciencias Forestales y Recursos Naturales, Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Valdivia, Chile
- Laboratoire des Sciences du Climat et de l’Environnement, IPSL, CRNS/CEA/UVSQ, Paris, France
| | - Nicolás Vergara
- Centro de Ciencia del Clima y la Resiliencia, CR2, Santiago, Chile
| | - Carmen Gloria Rodriguez
- Laboratorio de Dendrocronología y Cambio Global, Facultad de Ciencias Forestales y Recursos Naturales, Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Valdivia, Chile
| | - Frida I. Piper
- Centro de Investigación en Ecosistemas de la Patagonia, Coyhaique, Chile
| |
Collapse
|
15
|
García-Gutiérrez S, Antón-Ladislao A, Quiros R, Lara A, Rilo I, Morillas M, Murga N, Gallardo MS, Lafuente I, Aguirre U, Quintana JM. Short-term mortality risk score for de novo acute heart failure (ESSIC-FEHF). Eur J Intern Med 2020; 77:52-58. [PMID: 32145979 DOI: 10.1016/j.ejim.2020.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 02/12/2020] [Accepted: 02/14/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Different variables are playing a role in prognosis of acute heart failure. OBJECTIVES Our purpose was to create and validate a risk score to predict mortality in patients with a first episode of acute heart failure during the first 2 months after the first hospitalization. DESIGN This was a prospective cohort study. PARTICIPANTS We recruited patients diagnosed with a first episode of acute heart failure. MAIN MEASURES We collected data on sociodemographic characteristics; medical history; symptoms; precipitating factors; signs and symptoms of congestion; echocardiographic parameters; aetiology; vital signs and laboratory findings; and response to initial treatment (yes/no). A Cox proportional hazard regression model was built with mortality during the first 2 months after the index episode as the dependent variable. A risk score is presented. KEY RESULTS The mortality rate during the first 2 months after a first episode of heart failure was 5%. Age, systolic blood pressure, serum sodium, ejection fraction and blood urea nitrogen were selected in the internal validation, as was right ventricular failure. A risk score was developed. Both the model and the score showed good discrimination and calibration properties when applied to an independent cohort. CONCLUSIONS Our ESSIC-FEHF risk score showed excellent properties in the derivation cohort and also in a cohort from a different time period. This score is expected to help decision making in patients diagnosed with heart failure for the first time.
Collapse
Affiliation(s)
- Susana García-Gutiérrez
- Unidad de Investigación, Hospital Galdakao-Usansolo [Osakidetza] - Red de Investigación en Servicios de Salud en Enfermedades Crónicas [REDISSEC], Galdakao, Bizkaia, Spain.
| | - Ane Antón-Ladislao
- Unidad de Investigación, Hospital Galdakao-Usansolo [Osakidetza] - Red de Investigación en Servicios de Salud en Enfermedades Crónicas [REDISSEC], Galdakao, Bizkaia, Spain
| | - Raul Quiros
- Hospital Costa del Sol, Internal Medicine Department Andalucía- Red de Investigación en Servicios de Salud en Enfermedades Crónicas [REDISSEC], Marbella, Malaga, Spain
| | - Antonio Lara
- Hospital Universitario de Canarias; Cardiology Department, Islas Canarias-- Red de Investigación en Servicios de Salud en Enfermedades Crónicas [REDISSEC], Tenerife, Islas Canarias, Spain
| | - Irene Rilo
- Hospital Universitario de Donostia, Cardiology Department, Donostia, Gipuzkoa, Spain
| | - Miren Morillas
- Hospital Galdakao-Usansolo, Cardiology Departament, Galdakao, Bizkaia, Spain
| | - Nekane Murga
- Hospital Universitario Basurto, Cardiology Department, Bilbao, Bizkaia, Spain
| | | | - Iratxe Lafuente
- Unidad de Investigación, Hospital Galdakao-Usansolo [Osakidetza] - Red de Investigación en Servicios de Salud en Enfermedades Crónicas [REDISSEC], Galdakao, Bizkaia, Spain
| | - Urko Aguirre
- Unidad de Investigación, Hospital Galdakao-Usansolo [Osakidetza] - Red de Investigación en Servicios de Salud en Enfermedades Crónicas [REDISSEC], Galdakao, Bizkaia, Spain
| | - Jose Maria Quintana
- Unidad de Investigación, Hospital Galdakao-Usansolo [Osakidetza] - Red de Investigación en Servicios de Salud en Enfermedades Crónicas [REDISSEC], Galdakao, Bizkaia, Spain
| |
Collapse
|
16
|
Albert A, Alfaro R, Alvarez C, Angeles Camacho JR, Arteaga-Velázquez JC, Arunbabu KP, Avila Rojas D, Ayala Solares HA, Baghmanyan V, Belmont-Moreno E, BenZvi SY, Brisbois C, Caballero-Mora KS, Capistrán T, Carramiñana A, Casanova S, Cotti U, Cotzomi J, Coutiño de León S, De la Fuente E, de León C, Dingus BL, DuVernois MA, Díaz-Vélez JC, Ellsworth RW, Engel K, Espinoza C, Fleischhack H, Fraija N, Galván-Gámez A, Garcia D, García-González JA, Garfias F, González MM, Goodman JA, Harding JP, Hernandez S, Hona B, Huang D, Hueyotl-Zahuantitla F, Hüntemeyer P, Iriarte A, Joshi V, Lara A, Lee WH, León Vargas H, Linnemann JT, Longinotti AL, Luis-Raya G, Lundeen J, López-Coto R, Malone K, Marinelli SS, Martinez-Castellanos I, Martínez-Castro J, Martínez-Huerta H, Matthews JA, Miranda-Romagnoli P, Morales-Soto JA, Moreno E, Nayerhoda A, Nellen L, Newbold M, Nisa MU, Noriega-Papaqui R, Omodei N, Peisker A, Pérez-Pérez EG, Rho CD, Rivière C, Rosa-González D, Rosenberg M, Ruiz-Velasco E, Salazar H, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Sinnis G, Smith AJ, Springer RW, Surajbali P, Tabachnick E, Tanner M, Tibolla O, Tollefson K, Torres I, Torres-Escobedo R, Weisgarber T, Yodh G, Zepeda A, Zhou H. Constraints on Lorentz Invariance Violation from HAWC Observations of Gamma Rays above 100 TeV. Phys Rev Lett 2020; 124:131101. [PMID: 32302173 DOI: 10.1103/physrevlett.124.131101] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/07/2020] [Accepted: 03/04/2020] [Indexed: 06/11/2023]
Abstract
Because of the high energies and long distances to the sources, astrophysical observations provide a unique opportunity to test possible signatures of Lorentz invariance violation (LIV). Superluminal LIV enables the decay of photons at high energy. The high altitude water Cherenkov (HAWC) observatory is among the most sensitive gamma-ray instruments currently operating above 10 TeV. HAWC finds evidence of 100 TeV photon emission from at least four astrophysical sources. These observations exclude, for the strongest of the limits set, the LIV energy scale to 2.2×10^{31} eV, over 1800 times the Planck energy and an improvement of 1 to 2 orders of magnitude over previous limits.
Collapse
Affiliation(s)
- A Albert
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R Alfaro
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - C Alvarez
- Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas 29050, Mexico
| | - J R Angeles Camacho
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | | | - K P Arunbabu
- Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - D Avila Rojas
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - H A Ayala Solares
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - V Baghmanyan
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 IFJ-PAN, Krakow 31342, Poland
| | - E Belmont-Moreno
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - S Y BenZvi
- Department of Physics & Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - C Brisbois
- Department of Physics, Michigan Technological University, Houghton, Michigan 49931-1295, USA
| | - K S Caballero-Mora
- Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas 29050, Mexico
| | - T Capistrán
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla 72840, Mexico
| | - A Carramiñana
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla 72840, Mexico
| | - S Casanova
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 IFJ-PAN, Krakow 31342, Poland
| | - U Cotti
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58040, Mexico
| | - J Cotzomi
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico
| | - S Coutiño de León
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla 72840, Mexico
| | - E De la Fuente
- Departamento de Física, CUCEI, Universidad de Guadalajara, Guadalajara 44430, Mexico
| | - C de León
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58040, Mexico
| | - B L Dingus
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M A DuVernois
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J C Díaz-Vélez
- Departamento de Física, Centro Universitario de los Valles, Universidad de Guadalajara, Guadalajara 46600, Mexico
| | - R W Ellsworth
- Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA
| | - K Engel
- Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA
| | - C Espinoza
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - H Fleischhack
- Department of Physics, Michigan Technological University, Houghton, Michigan 49931-1295, USA
| | - N Fraija
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - A Galván-Gámez
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - D Garcia
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - J A García-González
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - F Garfias
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - M M González
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - J A Goodman
- Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA
| | - J P Harding
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S Hernandez
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - B Hona
- Department of Physics, Michigan Technological University, Houghton, Michigan 49931-1295, USA
| | - D Huang
- Department of Physics, Michigan Technological University, Houghton, Michigan 49931-1295, USA
| | | | - P Hüntemeyer
- Department of Physics, Michigan Technological University, Houghton, Michigan 49931-1295, USA
| | - A Iriarte
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - V Joshi
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - A Lara
- Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - W H Lee
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - H León Vargas
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - J T Linnemann
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - A L Longinotti
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla 72840, Mexico
| | - G Luis-Raya
- Universidad Politecnica de Pachuca, Pachuca, Hgo 42083, Mexico
| | - J Lundeen
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - R López-Coto
- INFN and Universita di Padova, via Marzolo 8, I-35131, Padova, Italy
| | - K Malone
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S S Marinelli
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | | | - J Martínez-Castro
- Centro de Investigación en Computación, Instituto Politécnico Nacional, México City 07738, Mexico
| | - H Martínez-Huerta
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, Sao Paolo 13566-590, Brasil
| | - J A Matthews
- Dept of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | | | - J A Morales-Soto
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia 58040, Mexico
| | - E Moreno
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico
| | - A Nayerhoda
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 IFJ-PAN, Krakow 31342, Poland
| | - L Nellen
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de Mexico, Ciudad de Mexico 04510, Mexico
| | - M Newbold
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA
| | - M U Nisa
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | | | - N Omodei
- Stanford University, Stanford, California 94305, USA
| | - A Peisker
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - E G Pérez-Pérez
- Universidad Politecnica de Pachuca, Pachuca, Hgo 42083, Mexico
| | - C D Rho
- Department of Physics & Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - C Rivière
- Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA
| | - D Rosa-González
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla 72840, Mexico
| | - M Rosenberg
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - E Ruiz-Velasco
- Max-Planck Institute for Nuclear Physics, 69117 Heidelberg, Germany
| | - H Salazar
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico
| | - F Salesa Greus
- Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 IFJ-PAN, Krakow 31342, Poland
| | - A Sandoval
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - M Schneider
- Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA
| | - H Schoorlemmer
- Max-Planck Institute for Nuclear Physics, 69117 Heidelberg, Germany
| | - G Sinnis
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A J Smith
- Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA
| | - R W Springer
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA
| | - P Surajbali
- Max-Planck Institute for Nuclear Physics, 69117 Heidelberg, Germany
| | - E Tabachnick
- Department of Physics, University of Maryland, College Park, Maryland 20742-4111, USA
| | - M Tanner
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - O Tibolla
- Universidad Politecnica de Pachuca, Pachuca, Hgo 42083, Mexico
| | - K Tollefson
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
| | - I Torres
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla 72840, Mexico
| | - R Torres-Escobedo
- Departamento de Física, CUCEI, Universidad de Guadalajara, Guadalajara 44430, Mexico
- Department of Physics and Astronomy, Texas Tech University, Lubbock, Texas 79409-1051, USA
| | - T Weisgarber
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - G Yodh
- Department of Physics and Astronomy, University of California, Irvine, Irvine, California 92697, USA
| | - A Zepeda
- Physics Department, Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City 07360, Mexico
| | - H Zhou
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| |
Collapse
|
17
|
Abeysekara AU, Albert A, Alfaro R, Angeles Camacho JR, Arteaga-Velázquez JC, Arunbabu KP, Avila Rojas D, Ayala Solares HA, Baghmanyan V, Belmont-Moreno E, BenZvi SY, Brisbois C, Caballero-Mora KS, Capistrán T, Carramiñana A, Casanova S, Cotti U, Cotzomi J, Coutiño de León S, De la Fuente E, de León C, Dichiara S, Dingus BL, DuVernois MA, Díaz-Vélez JC, Ellsworth RW, Engel K, Espinoza C, Fleischhack H, Fraija N, Galván-Gámez A, Garcia D, García-González JA, Garfias F, González MM, Goodman JA, Harding JP, Hernandez S, Hinton J, Hona B, Huang D, Hueyotl-Zahuantitla F, Hüntemeyer P, Iriarte A, Jardin-Blicq A, Joshi V, Kaufmann S, Kieda D, Lara A, Lee WH, León Vargas H, Linnemann JT, Longinotti AL, Luis-Raya G, Lundeen J, López-Coto R, Malone K, Marinelli SS, Martinez O, Martinez-Castellanos I, Martínez-Castro J, Martínez-Huerta H, Matthews JA, Miranda-Romagnoli P, Morales-Soto JA, Moreno E, Mostafá M, Nayerhoda A, Nellen L, Newbold M, Nisa MU, Noriega-Papaqui R, Peisker A, Pérez-Pérez EG, Pretz J, Ren Z, Rho CD, Rivière C, Rosa-González D, Rosenberg M, Ruiz-Velasco E, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Sinnis G, Smith AJ, Springer RW, Surajbali P, Tabachnick E, Tanner M, Tibolla O, Tollefson K, Torres I, Torres-Escobedo R, Villaseñor L, Weisgarber T, Wood J, Yapici T, Zhang H, Zhou H. Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC. Phys Rev Lett 2020; 124:021102. [PMID: 32004015 DOI: 10.1103/physrevlett.124.021102] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/21/2019] [Indexed: 06/10/2023]
Abstract
We present the first catalog of gamma-ray sources emitting above 56 and 100 TeV with data from the High Altitude Water Cherenkov Observatory, a wide field-of-view observatory capable of detecting gamma rays up to a few hundred TeV. Nine sources are observed above 56 TeV, all of which are likely galactic in origin. Three sources continue emitting past 100 TeV, making this the highest-energy gamma-ray source catalog to date. We report the integral flux of each of these objects. We also report spectra for three highest-energy sources and discuss the possibility that they are PeVatrons.
Collapse
Affiliation(s)
- A U Abeysekara
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah, USA
| | - A Albert
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - R Alfaro
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - J R Angeles Camacho
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | | | - K P Arunbabu
- Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - D Avila Rojas
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - H A Ayala Solares
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania, USA
| | - V Baghmanyan
- Institute of Nuclear Physics Polish Academy of Sciences, IFJ-PAN, Krakow, Poland
| | - E Belmont-Moreno
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - S Y BenZvi
- Department of Physics & Astronomy, University of Rochester, Rochester, New York, USA
| | - C Brisbois
- Department of Physics, University of Maryland, College Park, Maryland, USA
| | | | - T Capistrán
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - A Carramiñana
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - S Casanova
- Institute of Nuclear Physics Polish Academy of Sciences, IFJ-PAN, Krakow, Poland
| | - U Cotti
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - J Cotzomi
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - S Coutiño de León
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - E De la Fuente
- Departamento de Física, Centro Universitario de Ciencias Exactase Ingenierias, Universidad de Guadalajara, Guadalajara, Mexico
- Department of Physics and Astronomy, Texas Tech University, Lubbock, Texas, USA
| | - C de León
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - S Dichiara
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - B L Dingus
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - M A DuVernois
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - J C Díaz-Vélez
- Departamento de Física, Centro Universitario de Ciencias Exactase Ingenierias, Universidad de Guadalajara, Guadalajara, Mexico
- Department of Physics and Astronomy, Texas Tech University, Lubbock, Texas, USA
| | - R W Ellsworth
- Department of Physics, University of Maryland, College Park, Maryland, USA
| | - K Engel
- Department of Physics, University of Maryland, College Park, Maryland, USA
| | - C Espinoza
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - H Fleischhack
- Department of Physics, Michigan Technological University, Houghton, Michigan, USA
| | - N Fraija
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - A Galván-Gámez
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - D Garcia
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - J A García-González
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - F Garfias
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - M M González
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - J A Goodman
- Department of Physics, University of Maryland, College Park, Maryland, USA
| | - J P Harding
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - S Hernandez
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - J Hinton
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - B Hona
- Department of Physics, Michigan Technological University, Houghton, Michigan, USA
| | - D Huang
- Department of Physics, Michigan Technological University, Houghton, Michigan, USA
| | | | - P Hüntemeyer
- Department of Physics, Michigan Technological University, Houghton, Michigan, USA
| | - A Iriarte
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - A Jardin-Blicq
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - V Joshi
- Erlangen Centre for Astroparticle Physics, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - S Kaufmann
- Universidad Politecnica de Pachuca, Pachuca, Hgo, Mexico
| | - D Kieda
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah, USA
| | - A Lara
- Instituto de Geofísica, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - W H Lee
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - H León Vargas
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - J T Linnemann
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA
| | - A L Longinotti
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - G Luis-Raya
- Universidad Politecnica de Pachuca, Pachuca, Hgo, Mexico
| | - J Lundeen
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA
| | - R López-Coto
- INFN and Universita di Padova, via Marzolo 8, Padova, Italy
| | - K Malone
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania, USA
| | - S S Marinelli
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA
| | - O Martinez
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | | | - J Martínez-Castro
- Centro de Investigación en Computación, Instituto Politécnico Nacional, México City, México
| | - H Martínez-Huerta
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, São Paulo, Brasil
| | - J A Matthews
- Dept of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico, USA
| | | | - J A Morales-Soto
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - E Moreno
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - M Mostafá
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania, USA
| | - A Nayerhoda
- Institute of Nuclear Physics Polish Academy of Sciences, IFJ-PAN, Krakow, Poland
| | - L Nellen
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de Mexico, Ciudad de Mexico, Mexico
| | - M Newbold
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah, USA
| | - M U Nisa
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA
| | | | - A Peisker
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA
| | | | - J Pretz
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania, USA
| | - Z Ren
- Dept of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico, USA
| | - C D Rho
- Department of Physics & Astronomy, University of Rochester, Rochester, New York, USA
| | - C Rivière
- Department of Physics, University of Maryland, College Park, Maryland, USA
| | - D Rosa-González
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - M Rosenberg
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania, USA
| | - E Ruiz-Velasco
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - F Salesa Greus
- Institute of Nuclear Physics Polish Academy of Sciences, IFJ-PAN, Krakow, Poland
| | - A Sandoval
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - M Schneider
- Department of Physics, University of Maryland, College Park, Maryland, USA
| | - H Schoorlemmer
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - G Sinnis
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - A J Smith
- Department of Physics, University of Maryland, College Park, Maryland, USA
| | - R W Springer
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah, USA
| | - P Surajbali
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - E Tabachnick
- Department of Physics, University of Maryland, College Park, Maryland, USA
| | - M Tanner
- Department of Physics, Pennsylvania State University, University Park, Pennsylvania, USA
| | - O Tibolla
- Universidad Politecnica de Pachuca, Pachuca, Hgo, Mexico
| | - K Tollefson
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan, USA
| | - I Torres
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - R Torres-Escobedo
- Departamento de Física, Centro Universitario de Ciencias Exactase Ingenierias, Universidad de Guadalajara, Guadalajara, Mexico
- Department of Physics and Astronomy, Texas Tech University, Lubbock, Texas, USA
| | - L Villaseñor
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - T Weisgarber
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - J Wood
- NASA Marshall Space Flight Center, Hunstville, Alabama, USA
| | - T Yapici
- Department of Physics & Astronomy, University of Rochester, Rochester, New York, USA
| | - H Zhang
- Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana, USA
| | - H Zhou
- Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| |
Collapse
|
18
|
Muñoz AA, Klock-Barría K, Sheppard PR, Aguilera-Betti I, Toledo-Guerrero I, Christie DA, Gorena T, Gallardo L, González-Reyes Á, Lara A, Lambert F, Gayo E, Barraza F, Chávez RO. Multidecadal environmental pollution in a mega-industrial area in central Chile registered by tree rings. Sci Total Environ 2019; 696:133915. [PMID: 31461694 DOI: 10.1016/j.scitotenv.2019.133915] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/05/2019] [Accepted: 08/12/2019] [Indexed: 05/21/2023]
Abstract
One of the most polluted areas in Chile is the Ventanas Industrial Area (VIA; 32.74°S / 71.48°W), which started in 1958 and today comprises around 16 industries in an area of ca. 4 km2. A lack of consistent long-term instrumental records precludes assessing the history of contamination in the area and also limits the evaluation of mitigation actions taken since the late 1980s. Here, we use dendrochemistry as an environmental proxy to analyze environmental changes over several decades at the VIA. We present chemical measurements of tree rings from planted, exotic Cupressus macrocarpa growing near the VIA with 4-year resolution over a period of 52 years (1960-2011). These data provide unprecedented information on regional anthropogenic pollution and are compared with a tree-ring elemental record of 48 years (1964-2011) from the Isla Negra (INE) control site not exposed to VIA emissions. For the 48 years of overlap between both sites, higher concentrations of Zn, V, Co, Cd, Ag, Fe, Cr, and Al were especially registered after the year 2000 at VIA compared to INE for the periods under study. Concentrations of Pb, Cu, As, Fe, Mo, Cr, and Zn increased through time, particularly over the period 1980-1990. Decontamination plans activated in 1992 appear to have had a positive effect on the amount of some elements, but the chemical concentration in the tree rings suggest continued accumulation of pollutants in the environment. Only after several years of implementation of the mitigation measures have some elements tended to decrease in concentration, especially at the end of the evaluated period. Dendrochemistry is a useful tool to provide a long-term perspective of the dynamics of trace metal pollution and represents a powerful approach to monitor air quality variability to extend the instrumental records back in time.
Collapse
Affiliation(s)
- Ariel A Muñoz
- Laboratorio de Dendrocronología y Estudios Ambientales, Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2241, Valparaíso, Chile; Center for Climate and Resilience Research (CR)2, Santiago, Chile.
| | - Karin Klock-Barría
- Laboratorio de Dendrocronología y Estudios Ambientales, Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2241, Valparaíso, Chile.
| | - Paul R Sheppard
- Laboratory of Tree-Ring Research, University of Arizona, Tucson, United States of America.
| | - Isabella Aguilera-Betti
- Laboratorio de Dendrocronología y Estudios Ambientales, Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2241, Valparaíso, Chile; Centro Transdisciplinario de Estudios Ambientales y Desarrollo Humano Sostenible (CEAM), Universidad Austral de Chile, Valdivia, Chile.
| | - Isadora Toledo-Guerrero
- Laboratorio de Dendrocronología y Estudios Ambientales, Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2241, Valparaíso, Chile.
| | - Duncan A Christie
- Laboratorio de Dendrocronología y Cambio Global, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile; Center for Climate and Resilience Research (CR)2, Santiago, Chile.
| | - Tamara Gorena
- Centro de Tecnologías Ambientales, Universidad Técnica Federico Santa María, Valparaíso, Chile.
| | - Laura Gallardo
- Departamento de Geofísica, Universidad de Chile, Santiago, Chile; Center for Climate and Resilience Research (CR)2, Santiago, Chile.
| | - Álvaro González-Reyes
- Laboratorio de Dendrocronología y Cambio Global, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile; Hémera Centro de Observación de la Tierra, Facultad de Ciencias, Universidad Mayor, Chile; Center for Climate and Resilience Research (CR)2, Santiago, Chile.
| | - Antonio Lara
- Laboratorio de Dendrocronología y Cambio Global, Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, Valdivia, Chile; Center for Climate and Resilience Research (CR)2, Santiago, Chile; Fundación Centro de los Bosques Nativos FORECOS, Valdivia, Chile.
| | - Fabrice Lambert
- Departamento de Geografía, Pontificia Universidad Católica de Chile, Santiago, Chile; Center for Climate and Resilience Research (CR)2, Santiago, Chile.
| | - Eugenia Gayo
- Center for Climate and Resilience Research (CR)2, Santiago, Chile.
| | - Francisco Barraza
- Department of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand.
| | - Roberto O Chávez
- Laboratorio de Geo-Información y Percepción Remota, Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.
| |
Collapse
|
19
|
Affiliation(s)
- Jorge Hoyos-Santillan
- Center for Climate and Resilience Research (CR), Santiago, Metropolitan Region, Chile. .,School of Biosciences, University of Nottingham, Sutton Bonington, Loughborough, UK.,Network for Extreme Environments Research, University of Magallanes, Punta Arenas, Magallanes, Chile
| | - Alejandro Miranda
- Center for Climate and Resilience Research (CR), Santiago, Metropolitan Region, Chile.,Network for Extreme Environments Research, University of Magallanes, Punta Arenas, Magallanes, Chile.,Laboratorio de Ecología del Paisaje y Conservación, Departamento de Ciencias Forestales, Universidad de La Frontera, Temuco, Cautín, Chile
| | - Antonio Lara
- Center for Climate and Resilience Research (CR), Santiago, Metropolitan Region, Chile.,Instituto de Conservación, Biodiversidad y Territorio, Universidad Austral de Chile, Valdivia, Valdivia, Chile.,Fundación Centro de los Bosques Nativos-FORECOS, Valdivia, Valdivia, Chile
| | - Maisa Rojas
- Center for Climate and Resilience Research (CR), Santiago, Metropolitan Region, Chile.,Geophysics Department, University of Chile, Santiago, Metropolitan Region, Chile
| | - Armando Sepulveda-Jauregui
- Center for Climate and Resilience Research (CR), Santiago, Metropolitan Region, Chile.,Network for Extreme Environments Research, University of Magallanes, Punta Arenas, Magallanes, Chile
| |
Collapse
|
20
|
Johnson RL, Jechorek RP, Andrews H, Bautista P, Bird P, Blamey S, Connell E, Cooper C, Cooper WD, Crowley E, Doane C, Elton S, Falkenberg R, Fernandes-Monteiro C, Gharst T, Gonzalez E, Hawes B, Hemming B, High E, Hsu D, Iannucci C, Kora L, Lara A, Lee M, Masanz G, Mattson D, Okolo C, Parra G, Ryan E, Torontali M, Vega H. Evaluation of VIDAS® Listeria species Xpress (LSX) Immunoassay Method for the Detection of Listeria species in Foods: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/94.1.159] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
In a multilaboratory study, the effectiveness of an alternative method for rapid screening of Listeria species compared to traditional reference methods was demonstrated in a variety of food products. A collaborative study was conducted to compare the VIDAS® Listeria species Xpress (LSX) method and the standard cultural methods for the detection of Listeria species in foods. Six food types were tested: vanilla ice cream, cheddar cheese, raw ground beef, frozen green beans, deli turkey, and cooked shrimp. Each food, inoculated with a different Listeria strain at two levels and uninoculated test portions, was analyzed by each method. A total of 15 laboratories representing government and industry participated. In this study 1134 tests were analyzed in the statistical analysis. There were 490 positives by the VIDAS LSX method using the sample boiling step, 483 positives by the VIDAS LSX method using the Heat and Go system, and 439 positives by the standard culture methods. Overall, the Chi-square result for the VIDAS LSX method with boiling for all foods was 7.25, indicating a significant statistical difference between the VIDAS method and the standard methods at the 5% confidence. For the VIDAS LSX method with the Heat and Go system, the Chi-square result for all foods was 5.37, indicating a significant statistical difference between the VIDAS LSX assay with the Heat and Go system and the standard methods at the 5% level of significance. In both cases, the VIDAS method was more sensitive than the standard methods. The LSX method detects Listeria species in foods with negative or presumptive positive results in a minimum of 30 h compared to at least 5 days for the cultural methods. Based on the results of this collaborative study, it is recommended that the VIDAS LSX method be adopted as an AOAC Official MethodSM for the detection of Listeria species in dairy products, vegetables, seafood, raw meats and poultry, and processed meats and poultry.
Collapse
|
21
|
Affiliation(s)
| | - Antonio Lara
- Instituto de Conservación Biodiversidad y Territorio Facultad de Ciencias Forestales y Recursos Naturales Universidad Austral de Chile Valdivia Chile
- Center for Climate and Resilience Research (CR)2 Santiago Chile
- Fundación Centro de los Bosques Nativos FORECOS Valdivia Chile
| | - David Lobos
- Instituto de Conservación Biodiversidad y Territorio Facultad de Ciencias Forestales y Recursos Naturales Universidad Austral de Chile Valdivia Chile
- Center for Climate and Resilience Research (CR)2 Santiago Chile
| | - Christian Little
- Center for Climate and Resilience Research (CR)2 Santiago Chile
- Fundación Centro de los Bosques Nativos FORECOS Valdivia Chile
- Instituto Forestal (INFOR) Ministerio de Agricultura Valdivia Chile
| |
Collapse
|
22
|
Lara A, Rivera E, Park YH, Rivera R, Fowler T, Jones J. Natural clays with an inherent uranium component that nevertheless sequester uranium from contaminated water. J Environ Sci Health A Tox Hazard Subst Environ Eng 2018; 54:101-109. [PMID: 30407104 PMCID: PMC6447444 DOI: 10.1080/10934529.2018.1530536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 09/17/2018] [Accepted: 09/18/2018] [Indexed: 06/08/2023]
Abstract
Clays present a cost effective and sustainable method for removing uranium and heavy metals from drinking water because of their cation exchange capabilities. However, managing muddy suspensions is problematic; therefore, clay pellets as presented in this article are a promising alternative. Three standard clays and two regional clays were evaluated for sorption, both in powder form and in pellet structure for comparison. The objective was to evaluate individual sorption processes and assess the effect on uranium sorption due to the process of altering the clay powder to produce pellets. The sorption capacity of the pellets is sufficiently large to not only sorb the intrinsic non-bonded uranium but to continue to sorb uranium from contaminated water. Furthermore, the uranyl cation was also removed preferentially in the presence of Pb2+ and Cd2+ heavy metal cations, hydronium ions, and more importantly the naturally occurring cations, Na1+, Ca2+, and Mg2+ that occur in abundant concentrations. Clay pellets as well as powders reduced uranium concentrations, and in extreme cases from 450 ppb, 15 times the Environmental Protection Agency maximum contaminant level to non-detectable limits. Clay pellets are excellent candidates for the safe and manageable removal of uranium and heavy metals to produce potable water.
Collapse
Affiliation(s)
- Antonio Lara
- Chemistry and Biochemistry Department, New Mexico State University, Las Cruces, NM 88003, USA
| | - Emilio Rivera
- Mass Spectrometry Core Laboratory, Vanderbilt University, Nashville, TN 37240, USA
| | - Young Ho Park
- Mechanical & Aerospace Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA
| | - Raul Rivera
- Chemistry and Biochemistry Department, New Mexico State University, Las Cruces, NM 88003, USA
| | - Tiffany Fowler
- College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA
| | - Jeremy Jones
- Chemistry and Biochemistry Department, New Mexico State University, Las Cruces, NM 88003, USA
| |
Collapse
|
23
|
Sánchez Muñoz C, Lara A, Puebla J, Nori F. Hybrid Systems for the Generation of Nonclassical Mechanical States via Quadratic Interactions. Phys Rev Lett 2018; 121:123604. [PMID: 30296112 DOI: 10.1103/physrevlett.121.123604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/18/2018] [Indexed: 06/08/2023]
Abstract
We present a method to implement two-phonon interactions between mechanical resonators and spin qubits in hybrid setups, and show that these systems can be applied for the generation of nonclassical mechanical states even in the presence of dissipation. In particular, we demonstrate that the implementation of a two-phonon Jaynes-Cummings Hamiltonian under coherent driving of the qubit yields a dissipative phase transition with similarities to the one predicted in the model of the degenerate parametric oscillator: beyond a certain threshold in the driving amplitude, the driven-dissipative system sustains a mixed steady state consisting of a "jumping cat," i.e., a cat state undergoing random jumps between two phases. We consider realistic setups and show that, in samples within reach of current technology, the system features nonclassical transient states, characterized by a negative Wigner function, that persist during timescales of fractions of a second.
Collapse
Affiliation(s)
- Carlos Sánchez Muñoz
- Theoretical Quantum Physics Laboratory, RIKEN Cluster for Pioneering Research, Wako-shi, Saitama 351-0198, Japan
| | - Antonio Lara
- Dpto. Física Materia Condensada C03, Instituto Nicolas Cabrera (INC), Condensed Matter Physics Institute (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Jorge Puebla
- Theoretical Quantum Physics Laboratory, RIKEN Cluster for Pioneering Research, Wako-shi, Saitama 351-0198, Japan
| | - Franco Nori
- Theoretical Quantum Physics Laboratory, RIKEN Cluster for Pioneering Research, Wako-shi, Saitama 351-0198, Japan
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| |
Collapse
|
24
|
Büntgen U, Wacker L, Galván JD, Arnold S, Arseneault D, Baillie M, Beer J, Bernabei M, Bleicher N, Boswijk G, Bräuning A, Carrer M, Ljungqvist FC, Cherubini P, Christl M, Christie DA, Clark PW, Cook ER, D'Arrigo R, Davi N, Eggertsson Ó, Esper J, Fowler AM, Gedalof Z, Gennaretti F, Grießinger J, Grissino-Mayer H, Grudd H, Gunnarson BE, Hantemirov R, Herzig F, Hessl A, Heussner KU, Jull AJT, Kukarskih V, Kirdyanov A, Kolář T, Krusic PJ, Kyncl T, Lara A, LeQuesne C, Linderholm HW, Loader NJ, Luckman B, Miyake F, Myglan VS, Nicolussi K, Oppenheimer C, Palmer J, Panyushkina I, Pederson N, Rybníček M, Schweingruber FH, Seim A, Sigl M, Churakova Sidorova O, Speer JH, Synal HA, Tegel W, Treydte K, Villalba R, Wiles G, Wilson R, Winship LJ, Wunder J, Yang B, Young GHF. Tree rings reveal globally coherent signature of cosmogenic radiocarbon events in 774 and 993 CE. Nat Commun 2018; 9:3605. [PMID: 30190505 PMCID: PMC6127282 DOI: 10.1038/s41467-018-06036-0] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 08/07/2018] [Indexed: 11/24/2022] Open
Abstract
Though tree-ring chronologies are annually resolved, their dating has never been independently validated at the global scale. Moreover, it is unknown if atmospheric radiocarbon enrichment events of cosmogenic origin leave spatiotemporally consistent fingerprints. Here we measure the 14C content in 484 individual tree rings formed in the periods 770–780 and 990–1000 CE. Distinct 14C excursions starting in the boreal summer of 774 and the boreal spring of 993 ensure the precise dating of 44 tree-ring records from five continents. We also identify a meridional decline of 11-year mean atmospheric radiocarbon concentrations across both hemispheres. Corroborated by historical eye-witness accounts of red auroras, our results suggest a global exposure to strong solar proton radiation. To improve understanding of the return frequency and intensity of past cosmic events, which is particularly important for assessing the potential threat of space weather on our society, further annually resolved 14C measurements are needed. Despite their extensive use, the absolute dating of tree-ring chronologies has not hitherto been independently validated at the global scale. Here, the identification of distinct 14C excursions in 484 individual tree rings, enable the authors to confirm the dating of 44 dendrochronologies from five continents.
Collapse
Affiliation(s)
- Ulf Büntgen
- Department of Geography, University of Cambridge, Cambridge, CB2 3EN, UK. .,Swiss Federal Research Institute WSL, CH-8903, Birmensdorf, Switzerland. .,Global Change Research Institute CAS, 603 00, Brno, Czech Republic. .,Department of Geography, Masaryk University, 611 37, Brno, Czech Republic.
| | - Lukas Wacker
- Laboratory for Ion Beam Physics, ETH Zürich, CH-8093, Zurich, Switzerland.
| | - J Diego Galván
- Swiss Federal Research Institute WSL, CH-8903, Birmensdorf, Switzerland
| | - Stephanie Arnold
- Laboratory for Ion Beam Physics, ETH Zürich, CH-8093, Zurich, Switzerland
| | - Dominique Arseneault
- Département de biologie, chimie et géographie, University of Québec in Rimouski, QC, G5L 3A1, Canada
| | - Michael Baillie
- School of Natural and Built Environment, Queen's University, Belfast, BT7 1NN, Northern Ireland, UK
| | - Jürg Beer
- Swiss Federal Institute of Aquatic Science and Technology Eawag, CH-8600, Dübendorf, Switzerland
| | - Mauro Bernabei
- CNR-IVALSA, Trees and Timber Institute, 38010, San Michele all'Adige, TN, Italy
| | - Niels Bleicher
- Competence Center for Underwater Archaeology and Dendrochronology, Office for Urbanism, City of Zurich, 8008, Zürich, Switzerland
| | - Gretel Boswijk
- School of Environment, University of Auckland, 1010, Auckland, New Zealand
| | - Achim Bräuning
- Institute of Geography, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), 91058, Erlangen, Germany
| | - Marco Carrer
- Department Territorio e Sistemi Agro-Forestali, University of Padova, 35020, Legnaro (PD), Italy
| | - Fredrik Charpentier Ljungqvist
- Department of Geography, University of Cambridge, Cambridge, CB2 3EN, UK.,Department of History, Stockholm University, SE-10691, Stockholm, Sweden.,Bolin Centre for Climate Research, Stockholm University, SE-10691, Stockholm, Sweden
| | - Paolo Cherubini
- Swiss Federal Research Institute WSL, CH-8903, Birmensdorf, Switzerland
| | - Marcus Christl
- Laboratory for Ion Beam Physics, ETH Zürich, CH-8093, Zurich, Switzerland
| | - Duncan A Christie
- Laboratorio de Dendrocronología y Cambio Global, Universidad Austral de Chile, Casilla 567, Valdivia, Chile.,Center for Climate and Resilience Research, Blanco Encalada 2002, 8370449, Santiago, Chile
| | - Peter W Clark
- Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, Vermont, 05405, USA
| | - Edward R Cook
- Tree-Ring Laboratory, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, 10964-8000, USA
| | - Rosanne D'Arrigo
- Tree-Ring Laboratory, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, 10964-8000, USA
| | - Nicole Davi
- Tree-Ring Laboratory, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, 10964-8000, USA.,Department of Environmental Science, William Paterson University, Wayne, NJ, 07470, USA
| | | | - Jan Esper
- Department of Geography, Johannes Gutenberg University, 55099, Mainz, Germany
| | - Anthony M Fowler
- School of Environment, University of Auckland, 1010, Auckland, New Zealand
| | - Ze'ev Gedalof
- Department of Geography, University of Guelph, ON, N1G 2W1, Canada
| | - Fabio Gennaretti
- AgroParisTech, INRA, Université de Lorraine, 54000, Nancy, France
| | - Jussi Grießinger
- Institute of Geography, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), 91058, Erlangen, Germany
| | - Henri Grissino-Mayer
- Department of Geography, University of Tennessee, Knoxville, TN, 37996-0925, USA
| | - Håkan Grudd
- Swedish Polar Research Secretariat, SE-104 05, Stockholm, Sweden
| | - Björn E Gunnarson
- Bolin Centre for Climate Research, Stockholm University, SE-10691, Stockholm, Sweden.,Department of Physical Geography, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Rashit Hantemirov
- Institute of Plant and Animal Ecology, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, 620144, Russia
| | - Franz Herzig
- Bavarian State Office for Monument Protection, 80539, München, Germany
| | - Amy Hessl
- Department of Geology and Geography, West Virginia University, WV, 26505-6300, USA
| | | | - A J Timothy Jull
- Department of Geosciences, University of Arizona, Tucson, AZ, 85721, USA.,AMS Laboratory, University of Arizona, Tucson, AZ, 85721, USA.,Isotope Climatology and Environmental Research Centre, Institute of Nuclear Research, H-4001, Debrecen, Hungary
| | - Vladimir Kukarskih
- Institute of Plant and Animal Ecology, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, 620144, Russia
| | - Alexander Kirdyanov
- Department of Geography, University of Cambridge, Cambridge, CB2 3EN, UK.,Sukachev Institute of Forest SB RAS, 660036, Krasnoyarsk, Russia.,Department of Humanities, Siberian Federal University, 660041, Krasnoyarsk, Russia
| | - Tomáš Kolář
- Global Change Research Institute CAS, 603 00, Brno, Czech Republic.,Department of Wood Science, Mendel University in Brno, 61300, Brno, Czech Republic
| | - Paul J Krusic
- Department of Geography, University of Cambridge, Cambridge, CB2 3EN, UK.,Department of Physical Geography, Stockholm University, SE-106 91, Stockholm, Sweden.,Navarino Environmental Observatory, GR-24001, Messinia, Greece
| | - Tomáš Kyncl
- Global Change Research Institute CAS, 603 00, Brno, Czech Republic
| | - Antonio Lara
- Laboratorio de Dendrocronología y Cambio Global, Universidad Austral de Chile, Casilla 567, Valdivia, Chile.,Center for Climate and Resilience Research, Blanco Encalada 2002, 8370449, Santiago, Chile
| | - Carlos LeQuesne
- Laboratorio de Dendrocronología y Cambio Global, Universidad Austral de Chile, Casilla 567, Valdivia, Chile
| | - Hans W Linderholm
- Department of Earth Sciences, University of Gothenburg, 405 30, Gothenburg, Sweden
| | - Neil J Loader
- Department of Geography, Swansea University, Swansea, SA2 8PP, Wales, UK
| | - Brian Luckman
- Department of Geography, University of Western Ontario, London, ON, N6A 3K7, Canada
| | - Fusa Miyake
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, 464-8601, Japan
| | - Vladimir S Myglan
- Department of Humanities, Siberian Federal University, 660041, Krasnoyarsk, Russia
| | - Kurt Nicolussi
- Institute of Geography, University of Innsbruck, 6020, Innsbruck, Austria
| | - Clive Oppenheimer
- Department of Geography, University of Cambridge, Cambridge, CB2 3EN, UK
| | - Jonathan Palmer
- Palaeontology, Geobiology and Earth Archives Research Centre, and ARC Centre of Excellence for Australian Biodiversity and Heritage, School of Biological, Earth and Environmental Sciences, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Irina Panyushkina
- Laboratory of Tree-Ring Research, University of Arizona, Tucson, AZ, 85721, USA
| | - Neil Pederson
- Harvard Forest, Harvard University, Petersham, MA, 01366, USA
| | - Michal Rybníček
- Global Change Research Institute CAS, 603 00, Brno, Czech Republic.,Department of Wood Science, Mendel University in Brno, 61300, Brno, Czech Republic
| | | | - Andrea Seim
- Chair of Forest Growth and Dendroecology, Institute of Forest Sciences, University of Freiburg, Freiburg, Germany
| | - Michael Sigl
- Laboratory of Environmental Chemistry, Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Olga Churakova Sidorova
- Department of Humanities, Siberian Federal University, 660041, Krasnoyarsk, Russia.,Institute for Environmental Sciences, University of Geneva, 1205, Geneva, Switzerland
| | - James H Speer
- Department of Earth and Environmental Systems, Indiana State University, Terre Haute, IN, 47809, USA
| | - Hans-Arno Synal
- Laboratory for Ion Beam Physics, ETH Zürich, CH-8093, Zurich, Switzerland
| | - Willy Tegel
- Chair of Forest Growth and Dendroecology, Institute of Forest Sciences, University of Freiburg, Freiburg, Germany.,Archaeological Service Kanton Thurgau (AATG), 8510, Frauenfeld, Switzerland
| | - Kerstin Treydte
- Swiss Federal Research Institute WSL, CH-8903, Birmensdorf, Switzerland
| | - Ricardo Villalba
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales, IANIGLA - CONICET, Mendoza, CP 330, 5500, Argentina
| | - Greg Wiles
- Department of of Earth Sciences, The College of Wooster, OH, 44691, USA
| | - Rob Wilson
- Tree-Ring Laboratory, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, 10964-8000, USA.,School of Geography and Geosciences, University of St Andrews, St Andrews, KY16 9AJ, Scotland, UK
| | | | - Jan Wunder
- Swiss Federal Research Institute WSL, CH-8903, Birmensdorf, Switzerland.,School of Environment, University of Auckland, 1010, Auckland, New Zealand
| | - Bao Yang
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 730000, Lanzhou, China
| | - Giles H F Young
- Department of Geography, Swansea University, Swansea, SA2 8PP, Wales, UK
| |
Collapse
|
25
|
González ME, Gómez-González S, Lara A, Garreaud R, Díaz-Hormazábal I. The 2010-2015 Megadrought and its influence on the fire regime in central and south-central Chile. Ecosphere 2018. [DOI: 10.1002/ecs2.2300] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Mauro E. González
- Laboratorio de Ecología de Bosques; Facultad de Ciencias Forestales y Recursos Naturales; Instituto de Conservación, Biodiversidad y Territorio; Universidad Austral de Chile; Casilla 567 Valdivia Chile
- Center for Climate and Resilience Research (CR); Blanco Encalada 2002 Santiago Chile
| | - Susana Gómez-González
- Center for Climate and Resilience Research (CR); Blanco Encalada 2002 Santiago Chile
- Departamento de Biología-IVAGRO; Universidad de Cádiz; 11510 Puerto Real Spain
| | - Antonio Lara
- Laboratorio de Ecología de Bosques; Facultad de Ciencias Forestales y Recursos Naturales; Instituto de Conservación, Biodiversidad y Territorio; Universidad Austral de Chile; Casilla 567 Valdivia Chile
- Center for Climate and Resilience Research (CR); Blanco Encalada 2002 Santiago Chile
| | - René Garreaud
- Center for Climate and Resilience Research (CR); Blanco Encalada 2002 Santiago Chile
- Departamento de Biología-IVAGRO; Universidad de Cádiz; 11510 Puerto Real Spain
- Departamento de Geofísica; Facultad de Ciencias Físicas y Matemáticas; Universidad de Chile; Blanco Encalada 2002 Santiago Chile
| | - Ignacio Díaz-Hormazábal
- Center for Climate and Resilience Research (CR); Blanco Encalada 2002 Santiago Chile
- Departamento de Planificación y Desarrollo; Corporación Nacional Forestal; Paseo Bulnes 259 Santiago Chile
| |
Collapse
|
26
|
Abeysekara A, Albert A, Alfaro R, Alvarez C, Álvarez J, Arceo R, Arteaga-Velázquez J, Avila Rojas D, Ayala Solares H, Belmont-Moreno E, BenZvi S, Braun J, Brisbois C, Caballero-Mora K, Capistrán T, Carramiñana A, Casanova S, Castillo M, Cotti U, Cotzomi J, Coutiño de León S, De León C, De la Fuente E, Diaz Hernandez R, Dichiara S, Dingus B, DuVernois M, Ellsworth R, Engel K, Enríquez-Rivera O, Fleischhack H, Fraija N, Galván-Gámez A, García-González J, González Muñoz A, González M, Hampel-Arias Z, Harding J, Hernandez S, Hona B, Hueyotl-Zahuantitla F, Hui C, Hüntemeyer P, Iriarte A, Jardin-Blicq A, Joshi V, Kaufmann S, Lara A, Lee W, León Vargas H, Linnemann J, Longinotti A, Luis-Raya G, Luna-García R, López-Coto R, Malone K, Marinelli S, Martinez O, Martinez-Castellanos I, Martínez-Castro J, Martínez-Huerta H, Matthews J, Miranda-Romagnoli P, Moreno E, Mostafá M, Nellen L, Newbold M, Nisa M, Noriega-Papaqui R, Pelayo R, Pretz J, Pérez-Pérez E, Ren Z, Rho C, Rivière C, Rosa-González D, Rosenberg M, Ruiz-Velasco E, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Seglar Arroyo M, Sinnis G, Smith A, Springer R, Surajbali P, Taboada I, Tibolla O, Torres I, Villaseñor L, Weisgarber T, Westerhoff S, Wood J, Yapici T, Yodh G, Zepeda A, Zhou H. Constraining the
p¯/p
ratio in TeV cosmic rays with observations of the Moon shadow by HAWC. Int J Clin Exp Med 2018. [DOI: 10.1103/physrevd.97.102005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
27
|
Lara A, Riquelme M, Vöhringer-Martinez E. Partition coefficients of methylated DNA bases obtained from free energy calculations with molecular electron density derived atomic charges. J Comput Chem 2018; 39:1728-1737. [PMID: 29752734 DOI: 10.1002/jcc.25347] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/15/2018] [Accepted: 04/08/2018] [Indexed: 01/25/2023]
Abstract
Partition coefficients serve in various areas as pharmacology and environmental sciences to predict the hydrophobicity of different substances. Recently, they have also been used to address the accuracy of force fields for various organic compounds and specifically the methylated DNA bases. In this study, atomic charges were derived by different partitioning methods (Hirshfeld and Minimal Basis Iterative Stockholder) directly from the electron density obtained by electronic structure calculations in a vacuum, with an implicit solvation model or with explicit solvation taking the dynamics of the solute and the solvent into account. To test the ability of these charges to describe electrostatic interactions in force fields for condensed phases, the original atomic charges of the AMBER99 force field were replaced with the new atomic charges and combined with different solvent models to obtain the hydration and chloroform solvation free energies by molecular dynamics simulations. Chloroform-water partition coefficients derived from the obtained free energies were compared to experimental and previously reported values obtained with the GAFF or the AMBER-99 force field. The results show that good agreement with experimental data is obtained when the polarization of the electron density by the solvent has been taken into account, and when the energy needed to polarize the electron density of the solute has been considered in the transfer free energy. These results were further confirmed by hydration free energies of polar and aromatic amino acid side chain analogs. Comparison of the two partitioning methods, Hirshfeld-I and Minimal Basis Iterative Stockholder (MBIS), revealed some deficiencies in the Hirshfeld-I method related to the unstable isolated anionic nitrogen pro-atom used in the method. Hydration free energies and partitioning coefficients obtained with atomic charges from the MBIS partitioning method accounting for polarization by the implicit solvation model are in good agreement with the experimental values. © 2018 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- A Lara
- Departamento de Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Chile
| | - M Riquelme
- Departamento de Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Chile
| | - E Vöhringer-Martinez
- Departamento de Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Chile
| |
Collapse
|
28
|
Urrutia‐Jalabert R, González ME, González‐Reyes Á, Lara A, Garreaud R. Climate variability and forest fires in central and south‐central Chile. Ecosphere 2018. [DOI: 10.1002/ecs2.2171] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Rocío Urrutia‐Jalabert
- Laboratorio de Dendrocronologia y Cambio Global Instituto de Conservación, Biodiversidad y Territorio Universidad Austral de Chile Independencia 641 Valdivia Chile
- Center for Climate and Resilience Research (CR) 2 (squared), Blanco Encalada 2002 Santiago Chile
| | - Mauro E. González
- Laboratorio de Dendrocronologia y Cambio Global Instituto de Conservación, Biodiversidad y Territorio Universidad Austral de Chile Independencia 641 Valdivia Chile
- Center for Climate and Resilience Research (CR) 2 (squared), Blanco Encalada 2002 Santiago Chile
| | - Álvaro González‐Reyes
- Instituto de Ciencias de la Tierra Facultad de Ciencias Universidad Austral de Chile Independencia 641 Valdivia Chile
| | - Antonio Lara
- Laboratorio de Dendrocronologia y Cambio Global Instituto de Conservación, Biodiversidad y Territorio Universidad Austral de Chile Independencia 641 Valdivia Chile
- Center for Climate and Resilience Research (CR) 2 (squared), Blanco Encalada 2002 Santiago Chile
| | - René Garreaud
- Center for Climate and Resilience Research (CR) 2 (squared), Blanco Encalada 2002 Santiago Chile
- Departamento de Geofísica Facultad de Ciencias Físicas y Matemáticas Universidad de Chile Blanco Encalada 2002 Santiago Chile
| |
Collapse
|
29
|
Abeysekara AU, Albert A, Alfaro R, Alvarez C, Álvarez JD, Arceo R, Arteaga-Velázquez JC, Avila Rojas D, Ayala Solares HA, Barber AS, Bautista-Elivar N, Becerril A, Belmont-Moreno E, BenZvi SY, Berley D, Bernal A, Braun J, Brisbois C, Caballero-Mora KS, Capistrán T, Carramiñana A, Casanova S, Castillo M, Cotti U, Cotzomi J, Coutiño de León S, De León C, De la Fuente E, Dingus BL, DuVernois MA, Díaz-Vélez JC, Ellsworth RW, Engel K, Enríquez-Rivera O, Fiorino DW, Fraija N, García-González JA, Garfias F, Gerhardt M, González Muñoz A, González MM, Goodman JA, Hampel-Arias Z, Harding JP, Hernández S, Hernández-Almada A, Hinton J, Hona B, Hui CM, Hüntemeyer P, Iriarte A, Jardin-Blicq A, Joshi V, Kaufmann S, Kieda D, Lara A, Lauer RJ, Lee WH, Lennarz D, Vargas HL, Linnemann JT, Longinotti AL, Luis Raya G, Luna-García R, López-Coto R, Malone K, Marinelli SS, Martinez O, Martinez-Castellanos I, Martínez-Castro J, Martínez-Huerta H, Matthews JA, Miranda-Romagnoli P, Moreno E, Mostafá M, Nellen L, Newbold M, Nisa MU, Noriega-Papaqui R, Pelayo R, Pretz J, Pérez-Pérez EG, Ren Z, Rho CD, Rivière C, Rosa-González D, Rosenberg M, Ruiz-Velasco E, Salazar H, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Sinnis G, Smith AJ, Springer RW, Surajbali P, Taboada I, Tibolla O, Tollefson K, Torres I, Ukwatta TN, Vianello G, Weisgarber T, Westerhoff S, Wisher IG, Wood J, Yapici T, Yodh G, Younk PW, Zepeda A, Zhou H, Guo F, Hahn J, Li H, Zhang H. Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth. Science 2018; 358:911-914. [PMID: 29146808 DOI: 10.1126/science.aan4880] [Citation(s) in RCA: 211] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 10/09/2017] [Indexed: 11/02/2022]
Abstract
The unexpectedly high flux of cosmic-ray positrons detected at Earth may originate from nearby astrophysical sources, dark matter, or unknown processes of cosmic-ray secondary production. We report the detection, using the High-Altitude Water Cherenkov Observatory (HAWC), of extended tera-electron volt gamma-ray emission coincident with the locations of two nearby middle-aged pulsars (Geminga and PSR B0656+14). The HAWC observations demonstrate that these pulsars are indeed local sources of accelerated leptons, but the measured tera-electron volt emission profile constrains the diffusion of particles away from these sources to be much slower than previously assumed. We demonstrate that the leptons emitted by these objects are therefore unlikely to be the origin of the excess positrons, which may have a more exotic origin.
Collapse
Affiliation(s)
- A U Abeysekara
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT, USA
| | - A Albert
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - R Alfaro
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - C Alvarez
- Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
| | - J D Álvarez
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - R Arceo
- Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
| | | | - D Avila Rojas
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - H A Ayala Solares
- Department of Physics, Michigan Technological University, Houghton, MI, USA
| | - A S Barber
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT, USA
| | | | - A Becerril
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - E Belmont-Moreno
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - S Y BenZvi
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA
| | - D Berley
- Department of Physics, University of Maryland, College Park, MD, USA
| | - A Bernal
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - J Braun
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - C Brisbois
- Department of Physics, Michigan Technological University, Houghton, MI, USA
| | | | - T Capistrán
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - A Carramiñana
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - S Casanova
- Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland.,Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - M Castillo
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - U Cotti
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - J Cotzomi
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - S Coutiño de León
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - C De León
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - E De la Fuente
- Departamento de Física, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Mexico
| | - B L Dingus
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - M A DuVernois
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - J C Díaz-Vélez
- Departamento de Física, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Mexico
| | - R W Ellsworth
- School of Physics, Astronomy, and Computational Sciences, George Mason University, Fairfax, VA, USA
| | - K Engel
- Department of Physics, University of Maryland, College Park, MD, USA
| | - O Enríquez-Rivera
- Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - D W Fiorino
- Department of Physics, University of Maryland, College Park, MD, USA
| | - N Fraija
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - J A García-González
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - F Garfias
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - M Gerhardt
- Department of Physics, Michigan Technological University, Houghton, MI, USA
| | - A González Muñoz
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - M M González
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - J A Goodman
- Department of Physics, University of Maryland, College Park, MD, USA
| | - Z Hampel-Arias
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - J P Harding
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - S Hernández
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - A Hernández-Almada
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - J Hinton
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - B Hona
- Department of Physics, Michigan Technological University, Houghton, MI, USA
| | - C M Hui
- Astrophysics Office, NASA Marshall Space Flight Center Huntsville, AL, USA
| | - P Hüntemeyer
- Department of Physics, Michigan Technological University, Houghton, MI, USA
| | - A Iriarte
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - A Jardin-Blicq
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - V Joshi
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - S Kaufmann
- Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
| | - D Kieda
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT, USA
| | - A Lara
- Instituto de Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - R J Lauer
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, USA
| | - W H Lee
- Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - D Lennarz
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA, USA
| | - H León Vargas
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - J T Linnemann
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
| | - A L Longinotti
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - G Luis Raya
- Universidad Politecnica de Pachuca, Pachuca, Hidalgo, Mexico
| | - R Luna-García
- Centro de Investigación en Computación, Instituto Politécnico Nacional, Mexico City, Mexico
| | - R López-Coto
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany.
| | - K Malone
- Department of Physics, Pennsylvania State University, University Park, PA, USA
| | - S S Marinelli
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
| | - O Martinez
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | | | - J Martínez-Castro
- Centro de Investigación en Computación, Instituto Politécnico Nacional, Mexico City, Mexico
| | - H Martínez-Huerta
- Physics Department, Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico
| | - J A Matthews
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, USA
| | | | - E Moreno
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - M Mostafá
- Department of Physics, Pennsylvania State University, University Park, PA, USA
| | - L Nellen
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - M Newbold
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT, USA
| | - M U Nisa
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA
| | | | - R Pelayo
- Centro de Investigación en Computación, Instituto Politécnico Nacional, Mexico City, Mexico
| | - J Pretz
- Department of Physics, Pennsylvania State University, University Park, PA, USA
| | - E G Pérez-Pérez
- Universidad Politecnica de Pachuca, Pachuca, Hidalgo, Mexico
| | - Z Ren
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, USA
| | - C D Rho
- Department of Physics and Astronomy, University of Rochester, Rochester, NY, USA
| | - C Rivière
- Department of Physics, University of Maryland, College Park, MD, USA
| | - D Rosa-González
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - M Rosenberg
- Department of Physics, Pennsylvania State University, University Park, PA, USA
| | - E Ruiz-Velasco
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - H Salazar
- Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - F Salesa Greus
- Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland.
| | - A Sandoval
- Instituto de Física, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - M Schneider
- Santa Cruz Institute for Particle Physics, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - H Schoorlemmer
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - G Sinnis
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - A J Smith
- Department of Physics, University of Maryland, College Park, MD, USA
| | - R W Springer
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT, USA
| | - P Surajbali
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - I Taboada
- School of Physics and Center for Relativistic Astrophysics, Georgia Institute of Technology, Atlanta, GA, USA
| | - O Tibolla
- Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
| | - K Tollefson
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
| | - I Torres
- Instituto Nacional de Astrofísica, Óptica y Electrónica, Puebla, Mexico
| | - T N Ukwatta
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - G Vianello
- Hansen Experimental Physics Laboratory Stanford University, Stanford, CA, USA
| | - T Weisgarber
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - S Westerhoff
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - I G Wisher
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - J Wood
- Department of Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - T Yapici
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
| | - G Yodh
- Department of Physics and Astronomy, University of California, Irvine, Irvine, CA, USA
| | - P W Younk
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - A Zepeda
- Physics Department, Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico.,Universidad Autónoma de Chiapas, Tuxtla Gutiérrez, Chiapas, Mexico
| | - H Zhou
- Los Alamos National Laboratory, Los Alamos, NM, USA.
| | - F Guo
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - J Hahn
- Max-Planck Institute for Nuclear Physics, Heidelberg, Germany
| | - H Li
- Los Alamos National Laboratory, Los Alamos, NM, USA
| | - H Zhang
- Los Alamos National Laboratory, Los Alamos, NM, USA
| |
Collapse
|
30
|
López-Meseguer M, Quezada CA, Ramon MA, Lázaro M, Dos L, Lara A, López R, Blanco I, Escribano P, Roman A. Correction: Lung and heart-lung transplantation in pulmonary arterial hypertension. PLoS One 2018; 13:e0192100. [PMID: 29377947 PMCID: PMC5788393 DOI: 10.1371/journal.pone.0192100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
[This corrects the article DOI: 10.1371/journal.pone.0187811.].
Collapse
|
31
|
Alfaro R, Alvarez C, Álvarez J, Arceo R, Arteaga-Velázquez J, Avila Rojas D, Ayala Solares H, Barber A, Becerril A, Belmont-Moreno E, BenZvi S, Brisbois C, Caballero-Mora K, Capistrán T, Carramiñana A, Casanova S, Castillo M, Cotti U, Cotzomi J, Coutiño de León S, De León C, De la Fuente E, Diaz Hernandez R, Dichiara S, Dingus B, DuVernois M, Díaz-Vélez J, Ellsworth R, Enriquez-Rivera O, Fiorino D, Fleischhack H, Fraija N, García-González J, González Muñoz A, González M, Goodman J, Hampel-Arias Z, Harding J, Hernandez-Almada A, Hinton J, Hueyotl-Zahuantitla F, Hui C, Hüntemeyer P, Iriarte A, Jardin-Blicq A, Joshi V, Kaufmann S, Lara A, Lauer R, Lennarz D, León Vargas H, Linnemann J, Longinotti A, Luis Raya G, Luna-García R, López-Cámara D, López-Coto R, Malone K, Marinelli S, Martinez O, Martinez-Castellanos I, Martínez-Castro J, Martínez-Huerta H, Matthews J, Miranda-Romagnoli P, Moreno E, Mostafá M, Nellen L, Newbold M, Nisa M, Noriega-Papaqui R, Pelayo R, Pretz J, Pérez-Pérez E, Ren Z, Rho C, Rivière C, Rosa-González D, Rosenberg M, Ruiz-Velasco E, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Sinnis G, Smith A, Springer R, Surajbali P, Taboada I, Tibolla O, Tollefson K, Torres I, Ukwatta T, Villaseñor L, Weisgarber T, Westerhoff S, Wood J, Yapici T, Zepeda A, Zhou H. All-particle cosmic ray energy spectrum measured by the HAWC experiment from 10 to 500 TeV. Int J Clin Exp Med 2017. [DOI: 10.1103/physrevd.96.122001] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
32
|
Robles-Martínez L, Garay E, Martel-Gallegos MG, Cisneros-Mejorado A, Pérez-Montiel D, Lara A, Arellano RO. K ca3.1 Activation Via P2y 2 Purinergic Receptors Promotes Human Ovarian Cancer Cell (Skov-3) Migration. Sci Rep 2017; 7:4340. [PMID: 28659615 PMCID: PMC5489490 DOI: 10.1038/s41598-017-04292-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 05/12/2017] [Indexed: 01/28/2023] Open
Abstract
Disorders in cell signaling mediated by ATP or histamine, activating specific membrane receptors, have been frequently associated with tumorigenesis. Among the elements of response to purinergic (and histaminergic) signaling, ion channel activation controls essential cellular processes in cancer, such as cell proliferation, motility, and death. Here, we studied the effects that ATP had on electrical properties of human ovarian adenocarcinoma cells named SKOV-3. ATP caused increase in intracellular Ca2+ concentration ([Ca2+]i) and, concurrently, it evoked a complex electrical response with a conspicuous outward component. This current was generated through P2Y2 receptor activation and opening of K+ channels, KCa3.1, as indicated by electrophysiological and pharmacological analysis, as well as by immunodetection and specific silencing of P2Y2 or KCa3.1 gene by esiRNA transfection. Low µM ATP concentration increased SKOV-3 cell migration, which was strongly inhibited by KCa3.1 channel blockers and by esiRNA-generated P2Y2 or KCa3.1 downregulation. Finally, in human ovarian tumors, the P2Y2 and KCa3.1 proteins are expressed and co-localized in neoplastic cells. Thus, stimulation of P2Y2 receptors expressed in SKOV-3 cells promotes motility through KCa3.1 activation. Since P2Y2 and KCa3.1 are co-expressed in primary tumors, our findings suggest that they may play a role in cancer progression.
Collapse
Affiliation(s)
- L Robles-Martínez
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla Querétaro, CP 76230, Querétaro, México, Mexico
| | - E Garay
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla Querétaro, CP 76230, Querétaro, México, Mexico
| | - M G Martel-Gallegos
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla Querétaro, CP 76230, Querétaro, México, Mexico
| | - A Cisneros-Mejorado
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla Querétaro, CP 76230, Querétaro, México, Mexico
| | - D Pérez-Montiel
- Departamento de Patología, Instituto Nacional de Cancerología, Secretaría de Salud, Av. San Fernando #22, Colonia Sección XVI, Tlalpan, CP 14080, Ciudad de México, México, Mexico
| | - A Lara
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla Querétaro, CP 76230, Querétaro, México, Mexico
| | - R O Arellano
- Departamento de Neurobiología Celular y Molecular, Instituto de Neurobiología, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Juriquilla Querétaro, CP 76230, Querétaro, México, Mexico.
| |
Collapse
|
33
|
Urrutia‐Jalabert R, Malhi Y, Lara A. Soil respiration and mass balance estimation of fine root production in
Fitzroya cupressoides
forests of southern Chile. Ecosphere 2017. [DOI: 10.1002/ecs2.1640] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Rocio Urrutia‐Jalabert
- Laboratorio de Dendrocronología y Cambio Global Facultad de Ciencias Forestales y Recursos Naturales Instituto de Conservacion, Biodiversidad y Territorio Universidad Austral de Chile Independencia 641 Valdivia Chile
- Center for Climate and Resilience Research (CR)2 Blanco Encalada 2002 Santiago Chile
| | - Yadvinder Malhi
- School of Geography and the Environment Environmental Change Institute University of Oxford Oxford OX1 3QY UK
| | - Antonio Lara
- Laboratorio de Dendrocronología y Cambio Global Facultad de Ciencias Forestales y Recursos Naturales Instituto de Conservacion, Biodiversidad y Territorio Universidad Austral de Chile Independencia 641 Valdivia Chile
- Center for Climate and Resilience Research (CR)2 Blanco Encalada 2002 Santiago Chile
- Fundación Centro de los Bosques Nativos FORECOS Los Robles 510 interior Valdivia Chile
| |
Collapse
|
34
|
Hernández PA, Mendoza GD, Castro A, Lara A, Plata FX, Martínez JA, Ferraro S. Effects of grain level on lamb performance, ruminal metabolism and leptin mRNA expression in perirenal adipose tissue. Anim Prod Sci 2017. [DOI: 10.1071/an15564] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The effects of four different grain composition diets of finishing lambs on lamb performance, dry matter (DM) digestibility, rumen fermentation and leptin mRNA expression were evaluated. Thirty-two Pelibuey lambs (25.35 ± 4.73 kg bodyweight) were used in a completely randomised experiment in which lambs were fed diets that contained 30%, 45%, 60% or 75% grain (DM basis). The results indicated that increasing the grain level improved the average daily weight gain, hot carcass weight, DM digestibility and feed conversion linearly (P < 0.01); however, feed intake was not affected. Ruminal pH decreased linearly as the grain content was increased (P < 0.01). Ruminal propionate concentration increased and acetate concentration declined with increased grain content (P < 0.01). Leptin mRNA expression in perirenal adipose tissue increased linearly (P < 0.05) as grain content increased. Based on these results, we conclude that increasing grain level in the diets of finishing feedlot lambs improved weight gain and feed efficiency; however, because weight gain and feed efficiency were similar at the higher grain levels, our data suggest including 60% grain in lamb finishing rations.
Collapse
|
35
|
Valencia D, Dantas L, Lara A, García J, Rivera Z, Rosas J, Bertotti M. Development of a bio-electrochemical immunosensor based on the immobilization of SPINNTKPHEAR peptide derived from HPV-L1 protein on a gold electrode surface. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.03.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
36
|
Gander R, Pérez M, Bueno J, Lara A, Segarra A, Martínez MA, Lloret J. [Rupture of a superior mesenteric artery aneurysm in pediatric age: case report and literature review]. Cir Pediatr 2015; 28:40-44. [PMID: 27775270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Splanchnic artery aneurysms are rare in children. High mortality from rupture justifies its treatment, with various therapeutic options among which stand out surgery and recently, endovascular treatment. CASE REPORT A 11 year old girl presented with abdominal pain and sudden drop in hematocrit. The urgent abdominal CT angiography showed a saccular aneurysm of the superior mesenteric artery (SMA) at 4 cm from the ostium with dissection and active bleeding. A selective angiography was performed which confirmed the dissection. A self-expanding stent was placed in the main trunk of the SMA and a transcatheter coil and onyx embolization of the aneurysm was performed. The control angiogram showed no evidence of residual perfusion of the false lumen and demonstrated proper vascularization of the distal jejunum-ileal branches. Dual antiplatelet therapy with aspirin and dipyridamole was begun. After 24 months of follow-up the patient is asymptomatic. COMMENTS Endovascular treatment of a SMA aneurysm is effective in the pediatric patient, even in emergency situations.
Collapse
Affiliation(s)
- R Gander
- Servicio de Cirugía Pediátrica. Hospital Vall d'Hebron. Barcelona
| | - M Pérez
- Servicio de Radiología Intervencionista. Hospital Vall d'Hebron. Barcelona
| | - J Bueno
- Servicio de Cirugía Pediátrica. Hospital Vall d'Hebron. Barcelona
| | - A Lara
- Servicio de Cirugía Pediátrica. Hospital Vall d'Hebron. Barcelona
| | - A Segarra
- Servicio de Radiología Intervencionista. Hospital Vall d'Hebron. Barcelona
| | - M A Martínez
- Servicio de Pediatría. Hospital Arnau de Vilanova. Lleida
| | - J Lloret
- Servicio de Cirugía Pediátrica. Hospital Vall d'Hebron. Barcelona
| |
Collapse
|
37
|
Mercadé A, Vigo J, Rull V, Vegas-Villarrúbia T, Garcés S, Lara A, Cañellas-Boltà N. Vegetación y paisaje alrededor del lago de Montcortès (Prepirineos catalanes) como instrumento para el estudio paleoecológico de los sedimentos lacustres. Collect Bot 2013. [DOI: 10.3989/collectbot.2013.v32.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
El lago de Montcortès (42º 19′ N, 0º 59′ E; 1027 m altitud) posee sedimentos con laminaciones anuales, ideales para estudios paleoecológicos de alta resolución. Para el análisis palinológico de estos sedimentos, es necesario conocer en detalle la vegetación local, como fuente del polen sedimentario. El objetivo de este estudio es reconocer y cartografiar los tipos de vegetación presentes alrededor del lago, para lo cual se delimitó un área rectangular de unas 48 ha. Del estudio florístico de este espacio resultó un catálogo de 534 especies, que sirvió de base para el análisis de vegetación. Para ello, se llevaron a cabo 42 inventarios fitosociológicos, que se utilizaron para elaborar una síntesis del paisaje vegetal mediante cartografía digital. Como resultado, se obtuvieron 52 unidades de vegetación, expresión concreta de los hábitats CORINE definidos en la lista de los hábitats de Cataluña. Cada una de estas unidades se describió con criterios florísticos, fisionómicos, fitogeográficos, ambientales y de uso humano. La siguiente etapa consistirá en el estudio palinológico de las especies más representativas de los tipos de vegetación y hábitats establecidos aquí, con el fin de optimizar las interpretaciones paleoecológicas futuras.
Collapse
|
38
|
Ruiz Cano MJ, Vicente M, Dos Subira L, Lazaro M, Lara A, Barbera Mir JA, Roman Broto A, Castillo MJ, Escribano Subias P. The role of vascular obstruction site on pulsatile afterload in patients with pulmonary hypertension. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
39
|
Muñoz AA, Barichivich J, Christie DA, Dorigo W, Sauchyn D, González-Reyes Á, Villalba R, Lara A, Riquelme N, González ME. Patterns and drivers ofAraucaria araucanaforest growth along a biophysical gradient in the northern Patagonian Andes: Linking tree rings with satellite observations of soil moisture. AUSTRAL ECOL 2013. [DOI: 10.1111/aec.12054] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ariel A. Muñoz
- Centro de Tecnologías Ambientales; Universidad Técnica Federico Santa María; Valparaíso Chile
- Laboratorio de Dendrocronología y Cambio Global; Instituto de Conservación Biodiversidad y Territorio; Facultad de Ciencias Forestales y Recursos Naturales; Universidad Austral de Chile; Valdivia 5090000 Chile
- Centro de Estudios Ambientales (CEAM); Universidad Austral de Chile; Valdivia Chile
| | - Jonathan Barichivich
- Climatic Research Unit (CRU); School of Environmental Sciences; University of East Anglia; Norwich UK
| | - Duncan A. Christie
- Laboratorio de Dendrocronología y Cambio Global; Instituto de Conservación Biodiversidad y Territorio; Facultad de Ciencias Forestales y Recursos Naturales; Universidad Austral de Chile; Valdivia 5090000 Chile
- Center for Climate and Resilience Research [CR]2; Chile
| | - Wouter Dorigo
- Institute of Photogrammetry and Remote Sensing; Vienna University of Technology; Vienna Austria
| | - David Sauchyn
- Prairie Adaptation Research Collaborative (PARC); University of Regina; Regina Canada
| | - Álvaro González-Reyes
- Laboratorio de Dendrocronología y Cambio Global; Instituto de Conservación Biodiversidad y Territorio; Facultad de Ciencias Forestales y Recursos Naturales; Universidad Austral de Chile; Valdivia 5090000 Chile
- Departamento de Geología; Facultad de Ciencias Físicas y Matemáticas; Universidad de Chile; Santiago Chile
| | - Ricardo Villalba
- Instituto Argentino de Nivología; Glaciología y Ciencias Ambientales (IANIGLA); CONICET; Mendoza Argentina
| | - Antonio Lara
- Laboratorio de Dendrocronología y Cambio Global; Instituto de Conservación Biodiversidad y Territorio; Facultad de Ciencias Forestales y Recursos Naturales; Universidad Austral de Chile; Valdivia 5090000 Chile
- Center for Climate and Resilience Research [CR]2; Chile
| | - Natalia Riquelme
- Laboratorio de Dendrocronología y Cambio Global; Instituto de Conservación Biodiversidad y Territorio; Facultad de Ciencias Forestales y Recursos Naturales; Universidad Austral de Chile; Valdivia 5090000 Chile
| | - Mauro E. González
- Laboratorio de Dendrocronología y Cambio Global; Instituto de Conservación Biodiversidad y Territorio; Facultad de Ciencias Forestales y Recursos Naturales; Universidad Austral de Chile; Valdivia 5090000 Chile
- Center for Climate and Resilience Research [CR]2; Chile
| |
Collapse
|
40
|
Deidda S, Lara A, Manetti R. AB0105 Serum concentration of chemokines and cytokines in patients with diffuse or limited cutaneous systemic sclerosis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
41
|
Gutiérrez-Fernández J, Lara A, Bautista MF, de Dios Luna J, Polo P, Miranda C, Navarro JM. Performance of the Sysmex UF1000i system in screening for significant bacteriuria before quantitative culture of aerobic/facultative fast-growth bacteria in a reference hospital. J Appl Microbiol 2012; 113:609-14. [PMID: 22726229 DOI: 10.1111/j.1365-2672.2012.05369.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 06/08/2012] [Accepted: 06/17/2012] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To evaluate the performance of the Sysmex UF1000i automatic urine screening system in the quantitative culture of fast-growth aerobic/facultative bacteria. METHODS AND RESULTS A standard procedure was used to recover fast-growth aerobic/facultative micro-organisms in 1225 samples, applying (Sysmex(®)) flow cytometry for parallel bacteria and leucocyte counts. According to the area under the receiver operating characteristic curve, the optimal cut-off values to detect bacteriuria >10(5) colony forming units (CFU) ml(-1) were 690/μl for bacteria and 38/μl for leucocytes (sensitivity, 92%; specificity, 65%; positive predictive value [PPV], 39%; and negative predictive value [NPV], 97%). The use of a single cut-off point of 150 bacteria μl(-1) to detect significant bacteriuria of >10(5) CFU ml(-1) or of ≥10(4) CFU ml(-1) plus leucocyturia obtained similar results (sensitivity, 89%; specificity, 54%; PPV, 31%; and NPV, 96%) and allowed 45.7% of the samples to be rapidly excluded. CONCLUSIONS The Sysmex UF1000i system can be adapted for bacteriuria screening by the use of an appropriate cut-off point. SIGNIFICANCE AND IMPACT OF THE STUDY This screening system significantly reduces the workload and produces very few false positives and negatives.
Collapse
|
42
|
Rull V, López-Martínez C, Lara A, Campbell L, Nogué S. Additions to the Pantepui pollen flora (Venezuelan Guayana): the Maguire Collection. Collect Bot 2011. [DOI: 10.3989/collectbot.2010.v29.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
|
43
|
Pérez-Medina T, Álvarez J, Degollada M, de Santiago J, Lara A, Pascual A, Pérez Milán F, Crowe AM. Documento de consenso del Grupo de Trabajo sobre las Adherencias de la sección de endoscopia de la SEGO. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.pog.2010.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
44
|
Ayala J, Mendoza GD, Pinos-Rodriguez JM, Lara A, Sanchez MT. Effects of fat and rumen-protected methionine supplementation on production response of first-lactation cows. ACTA AGR SCAND A-AN 2010. [DOI: 10.1080/09064702.2010.511254] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
45
|
Sanz L, Cuende E, Lara A, Sistiaga JA, Rivera T. Prevalence of Dysphonia in Immunomediated Diseases. Otolaryngol Head Neck Surg 2010. [DOI: 10.1016/j.otohns.2010.06.431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
46
|
Ruiz R, García MP, Lara A, Rubio LA. Garlic derivatives (PTS and PTS-O) differently affect the ecology of swine faecal microbiota in vitro. Vet Microbiol 2009; 144:110-7. [PMID: 20080364 DOI: 10.1016/j.vetmic.2009.12.025] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Revised: 12/14/2009] [Accepted: 12/18/2009] [Indexed: 11/25/2022]
Abstract
A number of in vitro experiments were designed to evaluate the effects of two different industrial products, namely PROALLIUM-S-DMC and PROALLIUM-SO-DMC (DMC Research Center, Granada, Spain), obtained from garlic (Allium sativum) on the faecal microbiota of pigs. The effects of three different concentrations (50, 200 and 400 ppm) of the active compounds (PTS and PTS-O, respectively) from both industrial products on the gastrointestinal microbiota of pigs were tested. Growth medium without any additive (0 ppm) was used as control. Predominant bacterial groups (total aerobes, total anaerobes, lactobacilli, bifidobacteria, coliforms, enterobacteria, bacteroides and clostridia) were studied. Results showed that both PTS and PTS-O have significant (P<0.01) antimicrobial activity against every group studied, although enterobacteria and coliforms were the most affected populations (P<0.01). Time kill curves for Escherichia coli and Salmonella typhimurium, two common pathogens of pigs, showed that both compounds had a bactericidal effect against these strains. For the bacterial groups here studied, the antimicrobial effect of PTS-O was significantly (P<0.001) stronger than that of PTS. Trials in vivo are in course to study the potential use of these products as alternatives to antibiotics in pig feeds.
Collapse
Affiliation(s)
- Raquel Ruiz
- Dpto de Fisiología y Bioquímica de la Nutrición Animal IFNA, EEZ, CSIC, Profesor Albareda 1, 18008 Granada, Spain
| | | | | | | |
Collapse
|
47
|
Barragán A, Lacalzada J, de la Rosa A, de Vera AM, Duque A, Perera C, Lara A, Laynez I. Relationship between slightly elevated NT-proBNP and alterations in diastolic function detected by echocardiography in patients without structural heart disease. Int J Cardiol 2008; 129:430-2. [PMID: 17714810 DOI: 10.1016/j.ijcard.2007.06.097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2007] [Accepted: 06/23/2007] [Indexed: 11/22/2022]
|
48
|
Hernando M, Cobeta I, Lara A, García F, Gamboa FJ. Vocal Pathologies of Difficult Diagnosis. J Voice 2008; 22:607-10. [PMID: 17324554 DOI: 10.1016/j.jvoice.2006.12.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2006] [Revised: 12/29/2006] [Accepted: 12/29/2006] [Indexed: 11/19/2022]
Abstract
The objective of this study was to review four vocal pathologies difficult to diagnose (vocal sulci, submucosal cysts, pseudocysts, and mucosal bridges) seen in the Principe de Asturias University Hospital Voice Unit (Alcalá de Henares, Madrid, Spain) over a 9-year period. This study was to show the prevalence of these pathologies out of the total number of benign vocal pathologies, basing our findings on clinical and stroboscopic criteria; and to analyze the stroboscopic-surgical correlation of the series over the last 3 1/2 years. This study was a retrospective review of the stroboscopies carried out between 1993 and 2002, of the suspected diagnoses offered by three ENT specialists. The data were based on the video archives of the unit and surgical notes. We reviewed 4206 stroboscopies, 189 (4.5%) corresponded to new cases. Within this group, we found the following distribution: 48% of vocal sulci, 42% of submucosal cysts, 10% of pseudocysts, and 0% of mucosal bridges. Seventy-nine percent showed unilateral pathology. The sulci showed the highest percentage of bilaterality (33%). The stroboscopic-surgical correlation (1999-2002) was positive in 69% of the sulci, 78% of the cysts, and 100% of the pseudocysts. In our series, 4.5% of the stroboscopies were performed on these groups of difficult diagnosis. For these pathologies, the stroboscopy is the exploratory method that offers more information and that allows us to obtain an optimal correlation between diagnostic suspicion and surgical evidence.
Collapse
Affiliation(s)
- Mónica Hernando
- ENT Department, University Hospital Príncipe of Asturias, University of Alcala, Alcala de Henares, Madrid, Spain.
| | | | | | | | | |
Collapse
|
49
|
Suñer M, López-Mendoza M, Guerrero A, Del Castillo Páez M, Montes R, Delgado R, Rivera M, Fernández G, Jaraba C, Lara A, Gentil MA. Prevalence and management of potential candidates for simultaneous pancreas-kidney transplantation in a provincial setting. Transplant Proc 2007; 39:2329-31. [PMID: 17889179 DOI: 10.1016/j.transproceed.2007.07.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Simultaneous pancreas-kidney (SPK) transplantation is the best therapeutic option for correctly selected diabetic patients with advanced chronic kidney disease (CKD). OBJECTIVES The objectives of this study were to quantify in a Spanish province the prevalence and incidence of type 1 and 2 diabetics with stage IV-V CKD who are potential candidates for SPK, and to analyze the selection for SPK in clinical practice. MATERIALS AND METHODS All patients with diabetic neuropathy (DN) in predialysis, hemodialysis, or peritoneal dialysis (PD) in our transplantation referral area (population, 1.8 million; data collection ended December 7, 2005) were examined for basic SPK criteria (NTO 2005 Consensus). A new assessment was performed 9 months later, including new possible recipients, and patients were classified as: follows in study, excluded after study, added to SPK waiting list, or SPK-transplanted. RESULTS In 2005, there were 1371 patients in dialysis or predialysis, including 179 (13%) with DN (41 type 1 and 138 type 2 DM); only 16 of these patients (8.9% of DN patients), 8.9 per million population (PMP), met the basic criteria for SPK transplantation. There were 68 with DN in predialysis, including 8 (11.7%) possible SPK candidates; 7 with DN in PD, no candidates for SPK; and 104 patients with DN in hemodialysis, including 8 (7.2%) SPK candidates. After 9 months, 7 new potential candidates were identified (incidence of 5.1 PMP/y). Of 23 possible candidates, 3 refused SPK, 7 awaited completion of study, 8 were excluded after study, 1 was on the SPK waiting list, and 7 underwent SPK transplantation. CONCLUSIONS In our setting, approximately 9% of DN patients with stage IV-V CKD were potential SPK candidates in 2005 and 2006. After completion of studies, less than half were eventually included on the waiting list, generating an effective demand for SPK of 2-4 new patients PMP/y.
Collapse
Affiliation(s)
- M Suñer
- Department of Nephrology, Virgen del Rocío University Hospital, Sevilla, Spain
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Rojo R, Mendoza GD, Plata FX, Lara A, Bárcena R. Comparison of Method of Application on the Effect of Amylolytic Enzymes onIn vitroRuminal Starch Digestion. Journal of Applied Animal Research 2007. [DOI: 10.1080/09712119.2007.9706852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|