51
|
Lizana A, Estévez I, Turpin A, Ramirez C, Peinado A, Campos J. Implementation and performance of an in-line incomplete Stokes polarimeter based on a single biaxial crystal. APPLIED OPTICS 2015; 54:8758-8765. [PMID: 26479816 DOI: 10.1364/ao.54.008758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Due to the increasing interest of polarimetric information in numerous applications, different Stokes polarimeter designs are provided in the literature for the measure of light beam polarization. Recently, the concept of polarimeters based on the conical refraction (CR) phenomenon, occurring in biaxial crystals, was proposed. CR polarimeters are snapshot polarimeters that allow controlling the volume of data redundancy without an increase in the acquisition time. We present the implementation, calibration, and analysis of an incomplete CR-polarimeter optimized for the measure of linear polarizations. A simpler and cheaper experimental configuration is achieved, if compared with other polarimeters proposed in the literature. The suitability of the polarimeter is experimentally demonstrated and some of its benefits, such as its performance in low-intensity conditions, are discussed.
Collapse
|
52
|
Feldberg C, Stefani D, Somale V, Demey I, Rojas G, Iturry M, Bartoloni L, Serrano C, Campos J, Allegri R. Occupational selfdirection and cognitive performance in older adults, preliminary results. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
53
|
Russo M, Chrem Mendez P, Campos J, Cohen G, Amengual A, Nahas F, Martín M, Clarens M, Tapajoz F, Harris P, Sevlever G, Allegri R. Validation and diagnostic utility of the everyday Cognition (ECOG) in Argentina-ADNI. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
54
|
Campos J, Jiménez C, Trigo C, Ibarra P, Rana D, Thiruganesh R, Ramalingam M, Haidar ZS. Quartz Crystal Microbalance with Dissipation Monitoring: A Powerful Tool for BioNanoScience and Drug Discovery. ACTA ACUST UNITED AC 2015. [DOI: 10.1166/jbns.2015.1310] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
55
|
Nayar S, Campos J, Cloake T, Bowman S, Bombardieri M, Pitzalis C, Luther S, Buckley C, Barone F. SAT0005 IL22 Regulates Autoantibody Production by Inducing Lymphoid Chemokine Expression in Tertiary Lymphoid Organs. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
56
|
Nayar S, Campos J, Buckley C, Allen R, Fahy W, Payne A, Barone F. SAT0370 PI3KΔ Pathway a Novel Therapeutic Target for Sjogren's Syndrome. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
57
|
Sangüesa C, Campos J, Sanz J, Flores B, Espinosa M, Andreu J, Mulero J. AB1045 Diagnostic Value of Minor Salivary Gland Biopsy for Sjögren's Syndrome in a Cohort of 100 Patients. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
58
|
Campos J, Nayar S, Chung MM, Withers D, Carlesso G, Herbst R, Buckley C, Barone F. SAT0375 ICOS-ICOSL Modulates Tertiary Lymphoid Organ Formation, Regulating the Lymphotoxin Pathway in an Animal Model of SjÖgren's Syndrome. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
59
|
Turpin A, Vargas A, Lizana A, Torres-Ruiz FA, Estévez I, Moreno I, Campos J, Mompart J. Transformation of vector beams with radial and azimuthal polarizations in biaxial crystals. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION 2015; 32:1012-1016. [PMID: 26366927 DOI: 10.1364/josaa.32.001012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We present both experimentally and theoretically the transformation of radially and azimuthally polarized vector beams when they propagate through a biaxial crystal and are transformed by the conical refraction phenomenon. We show that, at the focal plane, the transverse pattern is formed by a ring-like light structure with an azimuthal node, this node being found at diametrically opposite points of the ring for radial/azimuthal polarizations. We also prove that the state of polarization of the transformed beams is conical refraction-like, i.e., that every two diametrically opposite points of the light ring are linearly orthogonally polarized.
Collapse
|
60
|
Turpin A, Loiko YV, Peinado A, Lizana A, Kalkandjiev TK, Campos J, Mompart J. Polarization tailored novel vector beams based on conical refraction. OPTICS EXPRESS 2015; 23:5704-5715. [PMID: 25836800 DOI: 10.1364/oe.23.005704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Coherent vector beams with involved states of polarization (SOP) are widespread in the literature, having applications in laser processing, super-resolution imaging and particle trapping. We report novel vector beams obtained by transforming a Gaussian beam passing through a biaxial crystal, by means of the conical refraction phenomenon. We analyze both experimentally and theoretically the SOP of the different vector beams generated and demonstrate that the SOP of the input beam can be used to control both the shape and the SOP of the transformed beam. We also identify polarization singularities of such beams for the first time and demonstrate their control by the SOP of the input beam.
Collapse
|
61
|
Campos J, Nayar S, Chung M, Hitchcock JR, Withers DR, Cunningham AF, Carlesso G, Herbst R, Buckley CD, Barone F. A2.20 ICOS-ICOSL interaction regulates lymphotoxin alpha expression and maturation of lymphoid-like stromal cells during inflammation. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
62
|
Roa AE, Campos J, Paneque M, Salazar V, Otero A, Lara-Sánchez A, Rodríguez AM, López-Solera I, Gómez MV. Synthesis of new heteroscorpionate iridium(i) and iridium(iii) complexes. Dalton Trans 2015; 44:6987-98. [DOI: 10.1039/c5dt00482a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The reactivity of different heteroscorpionate ligands based on bis(pyrazol-1-yl)methane, with different iridium-(i) and -(iii) precursors is reported.
Collapse
|
63
|
Ferrero A, Campos J, Perales E, Martínez-Verdú FM, van der Lans I, Kirchner E. Global color estimation of special-effect coatings from measurements by commercially available portable multiangle spectrophotometers. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION 2015; 32:1-11. [PMID: 26366484 DOI: 10.1364/josaa.32.000001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Colors of special-effect coatings have strong dependence on illumination/viewing geometry and an appealing appearance. An open question is to ask about the minimum number of measurement geometries required to completely characterize their observed color shift. A recently published principal components analysis (PCA)-based procedure to estimate the color of special-effect coatings at any geometry from measurements at a reduced set of geometries was tested in this work by using the measurement geometries of commercial portable multiangle spectrophotometers X-Rite MA98, Datacolor FX10, and BYK-mac as reduced sets. The performance of the proposed PCA procedure for the color-shift estimation for these commercial geometries has been examined for 15 special-effect coatings. Our results suggest that for rendering the color appearance of 3D objects covered with special-effect coatings, the color accuracy obtained with this procedure may be sufficient. This is the case especially if geometries of X-Rite MA98 or Datacolor FX10 are used.
Collapse
|
64
|
Reimão S, Pita Lobo P, Neutel D, Correia Guedes L, Coelho M, Rosa MM, Ferreira J, Abreu D, Gonçalves N, Morgado C, Nunes RG, Campos J, Ferreira JJ. Substantia nigra neuromelanin magnetic resonance imaging in de novo Parkinson's disease patients. Eur J Neurol 2014; 22:540-6. [PMID: 25534480 DOI: 10.1111/ene.12613] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 10/07/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Depigmentation of the substantia nigra (SN) and locus coeruleus (LC) is a conspicuous pathological feature of Parkinson's disease (PD) and is related to the loss of neuromelanin, whose paramagnetic properties result in high signal on specific T1-weighted magnetic resonance imaging (MRI). Recent studies have suggested that neuromelanin decrease in the SN and LC of PD patients may emerge as a possible diagnostic biomarker. The SN neuromelanin signal in de novo and early stage PD patients was studied to assess its diagnostic accuracy. This is the first study based on a semi-automated MRI analysis of the neuromelanin signal in de novo PD patients. METHODS The inclusion criteria were untreated de novo PD and a 2-5 year disease duration; in addition, age matched healthy controls were enrolled. These were studied with a high-resolution T1-weighted MRI sequence at 3 T to visualize neuromelanin. The primary outcome was SN high signal area, length and neuromelanin/midbrain ratio obtained with semi-automated methods. RESULTS A total of 12 de novo PD patients and 10 PD patients with a 2-5 year disease duration were evaluated. The area, length of the SN T1 high signal and the SN neuromelanin/midbrain ratio were markedly decreased in the PD groups compared with age-matched controls, with a substantial overlap between the two PD groups. CONCLUSIONS Neuromelanin-sensitive MRI techniques can discriminate PD patients from healthy individuals with high sensitivity and specificity. Our findings are consistent with recent findings showing that PD neuromelanin changes remain stable during the course of the disease.
Collapse
|
65
|
Dirajlal-Fargo S, DeBiasi R, Campos J, Song X. Carbapenem-resistant Enterobacteriaceae in pediatric patients: epidemiology and risk factors. Infect Control Hosp Epidemiol 2014; 35:447-9. [PMID: 24602957 DOI: 10.1086/675593] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
66
|
Renneker S, Abdo J, Salih DEA, Karagenç T, Bilgiç H, Torina A, Oliva AG, Campos J, Kullmann B, Ahmed J, Seitzer U. Can Anaplasma ovis in small ruminants be neglected any longer? Transbound Emerg Dis 2014; 60 Suppl 2:105-12. [PMID: 24589109 DOI: 10.1111/tbed.12149] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Indexed: 11/28/2022]
Abstract
Anaplasma species are obligate intracellular rickettsial pathogens transmitted by ticks with an impact on human and animal health. Anaplasma ovis infects sheep and goats in many regions of the world, and it can be diagnosed by different methods like Giemsa staining, PCR or competitive ELISA. In this study, a PCR based on the gene coding for major surface protein 4 (MSP-4) was used to examine field samples collected from sheep in different countries. Altogether, 1161 blood samples from Turkey (n = 830), Iraq (n = 195), Sudan (n = 96) and Portugal (n = 40) were examined, of which 31.4%, 66.6% 41.6% and 82.5%, respectively, were positive. This indicates high prevalence of A. ovis in the countries under investigation, and it can be assumed that the situation in other areas of the world might be similar. Thus, A. ovis should be considered as an important constraint of livestock production, and further efforts are needed to better understand the epidemiology and to implement suitable control measures.
Collapse
|
67
|
Campos J, Campos A, Mendes S, Neves A, Violante L, Castro Sousa JP. [Premacular hemorrhage treatment with Nd:YAG laser: a clinical case]. ACTA ACUST UNITED AC 2014; 90:44-6. [PMID: 25104142 DOI: 10.1016/j.oftal.2014.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Accepted: 06/30/2014] [Indexed: 11/29/2022]
Abstract
INTRODUCTION To report a case of premacular hemorrhage treated with Neodymium (Nd):YAG laser puncture. CASE REPORT A 54 year-old Caucasian female was seen in the emergency department with complaints of sudden loss of vision in her right eye (RE), detected on the previous day. The best-corrected visual acuity (BCVA) in the RE was reduced to light perception, and fundoscopy evidenced a large and dense premacular hemorrhage. An Nd:YAG laser puncture was performed that day to drain the hemorrhage into the vitreous cavity. The intravitreal hemorrhage cleared in about 1 month, and the BCVA of the RE was 20/25 after 3 months.
Collapse
|
68
|
Ruiz S, Metois M, Fuenzalida A, Ruiz J, Leyton F, Grandin R, Vigny C, Madariaga R, Campos J. Intense foreshocks and a slow slip event preceded the 2014 Iquique Mw 8.1 earthquake. Science 2014; 345:1165-9. [PMID: 25061132 DOI: 10.1126/science.1256074] [Citation(s) in RCA: 253] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The subduction zone in northern Chile is a well-identified seismic gap that last ruptured in 1877. The moment magnitude (Mw) 8.1 Iquique earthquake of 1 April 2014 broke a highly coupled portion of this gap. To understand the seismicity preceding this event, we studied the location and mechanisms of the foreshocks and computed Global Positioning System (GPS) time series at stations located on shore. Seismicity off the coast of Iquique started to increase in January 2014. After 16 March, several Mw > 6 events occurred near the low-coupled zone. These events migrated northward for ~50 kilometers until the 1 April earthquake occurred. On 16 March, on-shore continuous GPS stations detected a westward motion that we model as a slow slip event situated in the same area where the mainshock occurred.
Collapse
|
69
|
Vitali C, Parafioriti A, Sambataro D, Di Bernardo A, Ammiraglio E, Campos J, Barone F, Del Papa N. OP0100 Indoleamine 2,3 Dioxygenase I Expression in Sjogren's Sialoadenitis Correlates with the Local Amount of B-Lymphocytes and Plasmocytoid Dendritic Cells. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
70
|
Sánchez M, Villares R, Campos J, Lucas P, Rodríguez-Frade J, Sanz J, Fernández-Espartero C, Clavaguera T, Méndez C, Sanguesa C, Flores B, Collantes-Estévez E, Mellado M, Mulero J. AB0164 Analysis of Jak-Stat-Socs Signal Pathway MRNA Expression in Ankylosing Spondylitis (AS) Patients with Peripheral Arthritis (PA). Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
71
|
López-Camacho E, Rentero Z, Ruiz-Carrascoso G, Wesselink JJ, Pérez-Vázquez M, Lusa-Bernal S, Gómez-Puertas P, Kingsley RA, Gómez-Sánchez P, Campos J, Oteo J, Mingorance J. Design of clone-specific probes from genome sequences for rapid PCR-typing of outbreak pathogens. Clin Microbiol Infect 2014; 20:O891-3. [PMID: 24606530 DOI: 10.1111/1469-0691.12616] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/31/2014] [Accepted: 03/03/2014] [Indexed: 01/25/2023]
Abstract
The genome sequence of one OXA-48-producing Klebsiella pneumoniae belonging to sequence type (ST) 405, and three belonging to ST11, were used to design and test ST-specific PCR assays for typing OXA-48-producing K. pneumoniae. The approach proved to be useful for in-house development of rapid PCR typing assays for local outbreak surveillance.
Collapse
|
72
|
Nayar S, Glaysher B, Campos J, Coles M, Buckley CD, Barone F. A8.33 Unexpexpected role of IL-4Rα in regulating local tissue-resident stromal cells to support tertiary lymphoid structure formation at site of inflammation. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-205124.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
73
|
Kjeldsen M, Torpdahl M, Campos J, Pedersen K, Nielsen E. Multiple-locus variable-number tandem repeat analysis of Salmonella enterica
subsp. enterica
serovar Dublin. J Appl Microbiol 2014; 116:1044-54. [DOI: 10.1111/jam.12441] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 12/21/2013] [Accepted: 01/02/2014] [Indexed: 11/29/2022]
|
74
|
Ferrero A, Perales E, Rabal AM, Campos J, Martínez-Verdú FM, Chorro E, Pons A. Color representation and interpretation of special effect coatings. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION 2014; 31:436-447. [PMID: 24562043 DOI: 10.1364/josaa.31.000436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A representation of the color gamut of special effect coatings is proposed and shown for six different samples, whose colors were calculated from spectral bidirectional reflectance distribution function (BRDF) measurements at different geometries. The most important characteristic of the proposed representation is that it allows a straightforward understanding of the color shift to be done both in terms of conventional irradiation and viewing angles and in terms of flake-based parameters. A different line was proposed to assess the color shift of special effect coatings on a*,b*-diagrams: the absorption line. Similar to interference and aspecular lines (constant aspecular and irradiation angles, respectively), an absorption line is the locus of calculated color coordinates from measurement geometries with a fixed bistatic angle. The advantages of using the absorption lines to characterize the contributions to the spectral BRDF of the scattering at the absorption pigments and the reflection at interference pigments for different geometries are shown.
Collapse
|
75
|
Salgado E, Campos J, Moreira-Navarrete V, Mulero J, Navarro F, Perez-Pampin E, Carmona L, Gomez-Reino J. AB0278 The effect of rheumatoid factor titer on the response to TNF antagonists:. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2012-eular.278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|