1
|
Brown A, Ferrando P, Popa M, de la Fuente GM, Pappachan J, Cuthbertson B, Drikite L, Feltbower R, Gouliouris T, Sale I, Shulman R, Tume LN, Myburgh J, Woolfall K, Harrison DA, Mouncey PR, Rowan KM, Pathan N. Use of selective gut decontamination in critically ill children: protocol for the Paediatric Intensive Care and Infection Control (PICnIC) pilot study. BMJ Open 2022; 12:e061838. [PMID: 35277414 PMCID: PMC8919465 DOI: 10.1136/bmjopen-2022-061838] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION Healthcare-associated infections (HCAIs) are a major cause of morbidity and mortality in critically ill children. In critically ill adults, there are data that suggest the use of Selective Decontamination of the Digestive tract (SDD), alongside standard infection control measures reduce mortality and the incidence of HCAIs. SDD-enhanced infection control has not been compared directly with standard infection prevention strategies in the Paediatric Intensive Care Unit (PICU) population. The aim of this pilot study is to determine the feasibility of conducting a multicentre cluster randomised controlled trial (cRCT) in critically ill children comparing SDD with standard infection control. METHODS AND ANALYSIS Paediatric Intensive Care and Infection Control is a parallel group pilot cRCT, with integrated mixed-methods study, comparing incorporation of SDD into infection control procedures to standard care. After a 1-week pretrial ecology surveillance period, recruitment to the cRCT will run for a period of 18 weeks, comprising: (1) baseline control period (2) pre, mid and post-trial ecology surveillance periods and (3) intervention period. Six PICUs (in England, UK) will begin with usual care in period 1, then will be randomised 1:1 by the trial statistician using computer-based randomisation, to either continue to deliver usual care or commence delivery of the intervention (SDD) in period 2. Outcomes measures include parent and healthcare professionals' views on trial feasibility, adherence to the SDD intervention, estimation of recruitment rate and understanding of potential patient-centred primary and secondary outcome measures for the definitive trial. The planned recruitment for the cRCT is 324 participants. ETHICS AND DISSEMINATION The trial received favourable ethical opinion from West Midlands-Black Country Research Ethics Committee (reference: 20/WM/0061) and approval from the Health Research Authority (IRAS number: 239324). Informed consent is not required for SDD intervention or anonymised data collection but is sought for investigations as part of the study, any identifiable data collected and monitoring of medical records. Results will be disseminated via publications in peer-reviewed medical journals. TRIAL REGISTRATION NUMBER ISRCTN40310490.
Collapse
Affiliation(s)
- Alanna Brown
- Intensive Care National Audit and Research Centre, London, UK
| | - Paloma Ferrando
- Intensive Care National Audit and Research Centre, London, UK
| | - Mariana Popa
- Institute of Life and Human Sciences, University of Liverpool, Liverpool, UK
| | | | | | - Brian Cuthbertson
- Department of Critical Care, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Laura Drikite
- Clinical Trials Unit, Intensive Care National Audit and Research Centre, London, UK
| | | | | | | | - Robert Shulman
- Department of Pharmacy, University College London Hospitals NHS Foundation Trust, London, UK
| | - Lyvonne N Tume
- School of Health and Society, University of Salford, Salford, UK
| | - John Myburgh
- The George Institute for Global Health, Newtown, New South Wales, Australia
| | | | | | - Paul R Mouncey
- Intensive Care National Audit and Research Centre, London, UK
| | - Kathryn M Rowan
- Intensive Care National Audit and Research Centre, London, UK
| | - Nazima Pathan
- Department of Paediatrics, University of Cambridge, Cambridge, UK
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| |
Collapse
|
2
|
Ferrando P, Gould DW, Walmsley E, Richards-Belle A, Canter R, Saunders S, Harrison DA, Harvey S, Heyland DK, Hinton L, McColl E, Richardson A, Richardson M, Wright SE, Rowan KM. Family satisfaction with critical care in the UK: a multicentre cohort study. BMJ Open 2019; 9:e028956. [PMID: 31434771 PMCID: PMC6707657 DOI: 10.1136/bmjopen-2019-028956] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVE To assess family satisfaction with intensive care units (ICUs) in the UK using the Family Satisfaction in the Intensive Care Unit 24-item (FS-ICU-24) questionnaire, and to investigate how characteristics of patients and their family members impact on family satisfaction. DESIGN Prospective cohort study nested within a national clinical audit database. SETTING Stratified, random sample of 20 adult general ICUs participating in the Intensive Care National Audit & Research Centre Case Mix Programme. PARTICIPANTS Family members of patients staying at least 24 hours in ICU were recruited between May 2013 and June 2014. INTERVENTIONS Consenting family members were sent a postal questionnaire 3 weeks after the patient died or was discharged from ICU. Up to four family members were recruited per patient. MAIN OUTCOME MEASURES Family satisfaction was measured using the FS-ICU-24 questionnaire. MAIN RESULTS A total of 12 346 family members of 6380 patients were recruited and 7173 (58%) family members of 4615 patients returned a completed questionnaire. Overall and domain-specific family satisfaction scores were high (mean overall family satisfaction 80, satisfaction with care 83, satisfaction with information 76 and satisfaction with decision-making 73 out of 100) but varied significantly across adult general ICUs studied and by whether the patient survived ICU. For family members of ICU survivors, characteristics of both the family member (age, ethnicity, relationship to patient (next-of-kin and/or lived with patient) and visit frequency) and the patient (acute severity of illness and receipt of invasive mechanical ventilation) were significant determinants of family satisfaction, whereas, for family members of ICU non-survivors, only patient characteristics (age, acute severity of illness and duration of stay) were significant. CONCLUSIONS Overall family satisfaction in UK adult general ICUs was high but varied significantly. Adjustment for differences in family member/patient characteristics is important to avoid falsely identifying ICUs as statistical outliers. TRIAL REGISTRATION NUMBER ISRCTN47363549.
Collapse
Affiliation(s)
- Paloma Ferrando
- Intensive Care National Audit and Research Centre, London, UK
| | - Doug W Gould
- Intensive Care National Audit and Research Centre, London, UK
| | - Emma Walmsley
- Intensive Care National Audit and Research Centre, London, UK
| | | | - Ruth Canter
- Intensive Care National Audit and Research Centre, London, UK
| | - Steven Saunders
- Intensive Care National Audit and Research Centre, London, UK
| | | | - Sheila Harvey
- Global Health and Development, London School of Hygiene & Tropical Medicine, London, UK
| | - Daren K Heyland
- Clinical Evaluation Research Unit, Kingston General Hospital, Kingston, Ontario, Canada
- Department of Critical Care Medicine, Queens University, Kingston, Ontario, Canada
| | - Lisa Hinton
- Health Experiences Research Group, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Elaine McColl
- Institute for Health and Society, Newcastle University, Newcastle upon Tyne, UK
| | - Annette Richardson
- Perioperative and Critical Care, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | | | - Stephen E Wright
- Perioperative and Critical Care, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Kathryn M Rowan
- Intensive Care National Audit and Research Centre, London, UK
| |
Collapse
|
3
|
Villa F, Colombo I, Crippa A, De Martini G, Lafranconi M, Dell'Oro S, Vittimberga I, Arnoffi J, Guida F, Villa S, Anghilieri M, Viganò C, Ferrando P, De Nittis G, Valsecchi V, Ardizzoia A. Sharing long term follow-up of breast cancer survivors with family physician: a province of Lecco experience. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx433] [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: 11/14/2022] Open
|
4
|
Nolan JP, Ferrando P, Soar J, Benger J, Thomas M, Harrison DA, Perkins GD. Increasing survival after admission to UK critical care units following cardiopulmonary resuscitation. Crit Care 2016; 20:219. [PMID: 27393012 PMCID: PMC4938902 DOI: 10.1186/s13054-016-1390-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 06/17/2016] [Indexed: 01/29/2023]
Abstract
Background In recent years there have been many developments in post-resuscitation care. We have investigated trends in patient characteristics and outcome following admission to UK critical care units following cardiopulmonary resuscitation (CPR) for the period 2004–2014. Our hypothesis is that there has been a reduction in risk-adjusted mortality during this period. Methods We undertook a prospectively defined, retrospective analysis of the Intensive Care National Audit & Research Centre (ICNARC) Case Mix Programme Database (CMPD) for the period 1 January 2004 to 31 December 2014. Admissions, mechanically ventilated in the first 24 hours in the critical care unit and admitted following CPR, defined as the delivery of chest compressions in the 24 hours before admission, were identified. Case mix, withdrawal, outcome and activity were described annually for all admissions identified as post-cardiac arrest admissions, and separately for out-of-hospital cardiac arrest and in-hospital cardiac arrest. To assess whether in-hospital mortality had improved over time, hierarchical multivariate logistic regression models were constructed, with in-hospital mortality as the dependent variable, year of admission as the main exposure variable and intensive care unit (ICU) as a random effect. All analyses were repeated using only the data from those ICUs contributing data throughout the study period. Results During the period 2004–2014 survivors of cardiac arrest accounted for an increasing proportion of mechanically ventilated admissions to ICUs in the ICNARC CMPD (9.0 % in 2004 increasing to 12.2 % in 2014). Risk-adjusted hospital mortality following admission to ICU after cardiac arrest has decreased significantly during this period (OR 0.96 per year). Over this time, the ICU length of stay and time to treatment withdrawal has increased significantly. Re-analysis including only those 116 ICUs contributing data throughout the study period confirmed all the results of the primary analysis. Conclusions Risk-adjusted hospital mortality following admission to ICU after cardiac arrest has decreased significantly during the period 2004–2014. Over the same period the ICU length of stay and time to treatment withdrawal has increased significantly. Electronic supplementary material The online version of this article (doi:10.1186/s13054-016-1390-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- J P Nolan
- School of Clinical Sciences, University of Bristol, 69 St. Michael's Hill, Bristol, BS2 8DZ, UK. .,Anaesthesia and Intensive Care Medicine, Royal United Hospital, Combe Park, Bath, BA1 3NG, UK.
| | - P Ferrando
- Intensive Care National Audit & Research Centre (ICNARC), Napier House, 24 High Holborn, London, WC1V 6AZ, UK
| | - J Soar
- Anaesthesia and Intensive Care Medicine, Southmead Hospital, North Bristol NHS Trust, Bristol, BS10 5NB, UK
| | - J Benger
- Faculty of Health and Applied Sciences, Glenside Campus, Blackberry Hill, University of the West of England, Bristol, BS16 1DD, UK
| | - M Thomas
- Intensive Care Medicine, University Hospitals, Bristol, BS2 8HW, UK
| | - D A Harrison
- Intensive Care National Audit & Research Centre (ICNARC), Napier House, 24 High Holborn, London, WC1V 6AZ, UK
| | - G D Perkins
- Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK.,Intensive Care Medicine, Heart of England NHS Foundation Trust, Coventry, CV4 7AL, UK
| |
Collapse
|
5
|
Silvestri A, Serafini PM, Sartori S, Ferrando P, Boccafoschi F, Milione S, Conzatti L, Ciardelli G. Polyurethane-based biomaterials for shape-adjustable cardiovascular devices. J Appl Polym Sci 2011. [DOI: 10.1002/app.34779] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
6
|
Munoz A, Mateos F, Simon R, Martin-Hernandez E, Camacho A, Ferrando P, Arenas J, Martin M. Mitochondrial Encephalomyopathies in Children. Part I: Conventional MR Imaging Findings. Curr Med Imaging 2009. [DOI: 10.2174/157340509788185324] [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: 11/22/2022]
|
7
|
Munoz A, Mateos F, Simon R, Martin-Hernandez E, Camacho A, Ferrando P, Arenas J, Martin M. Mitochondrial Encephalomyopathies in Children. Part II: Advanced MR Tools and the Importance for its Early Recognition in the Acute Clinical Setting. Curr Med Imaging 2009. [DOI: 10.2174/157340509788185298] [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: 11/22/2022]
|
8
|
Gomez de la Cámara A, López-Encuentra A, Ferrando P. Heterogeneity of prognostic profiles in non-small cell lung cancer: too many variables but a few relevant. Eur J Epidemiol 2006; 20:907-14. [PMID: 16284868 DOI: 10.1007/s10654-005-3634-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2005] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Many prognostic factors, exceeding 150, for non-small cell lung cancer (NSCLC) are mentioned in the literature. The different statistical weight of the some variables at issue, their heterogeneity and their clinical uselessness is reviewed. STUDY DESIGN AND SETTING Survival analysis of a cohort of NSCLC operated (n = 1730, 1993-1997) was carried out utilizing different statistical approaches: Cox proportional hazard analysis (CPHA), logistic regression (LRA), and recursive partitioning (CART). RESULTS CPHA identified 13 prognostic variables and 11 LRA. Of the 17 possible variables, 10 are coincident. CART provided five different diagnostic groups but only three differentiated survival levels. Parsimonious models were constructed including only T and N cancer staging variables. Areas under the ROC curve of 0.68 and 0.68 were found for CPHA and LGA parsimonious models respectively, and 0.72 and 0.71 for complete models. CONCLUSION Variables with a minimal impact on the respective models and thus with little or scarce predictive clinical repercussion were identified. Differences in the prognostic profile of survival can be caused by the different methodological approaches used. No relevant differences were found between the parsimonious and complete models. Although the amount of information managed is considerable, there continues to be a large predictive gap yet to be explained.
Collapse
Affiliation(s)
- Agustín Gomez de la Cámara
- Unidad de Investigación-Epidemiologia Clínica, Hospital 12 de Octubre, Avda. Cordoba s/n., 28041, Madrid, Spain.
| | | | | |
Collapse
|
9
|
Perez-Regadera J, Sanchez-Muñoz A, de la Cruz Bértolo J, Ballestin C, Garcia Martin R, Ferrando P, Mendiola C, Lanzos E. Prognostic significance of EGFR, erbB-2 and p53 expression in advanced cervix cancer patients treated with concurrent radiochemotherapy. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.5035] [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] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | - E Lanzos
- H.U.12 de Octubre, Madrid, Spain
| |
Collapse
|
10
|
Moreira-Andrés MN, del Cañizo-Gómez FJ, Losa MA, Ferrando P, Gómez de la Cámara A, Hawkins FG. Comparison of anthropometric parameters as predictors of serum lipids in premenopausal women. J Endocrinol Invest 2004; 27:340-7. [PMID: 15233553 DOI: 10.1007/bf03351059] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
No single anthropometric parameter has yet been generally accepted as being superior to others in assessing the metabolic risk associated with abdominal obesity. To compare waist circumference (WC) with waist-to-hip ratio (WHR) and waist-to-height ratio (WHtR), regarding their association with serum lipids, we studied 166 women aged 20 to 48 yr; 53 were obese [body mass index (BMI) 30-39.9 Kg/m2], 50 were overweight (BMI 25-29.9 Kg/m2) and 63 normal weight (BMI 18.5-24.9 Kg/m2). Height, body weight, waist and hip circumferences, total serum cholesterol (Ch), low (LDL) and high density lipoprotein (HDL)-Ch and triglyceride (TG) concentrations were measured. The correlation coefficients between the concentration of serum lipid fractions and each anthropometric parameter did not differ significantly for any lipid variable when WC, WHR and WHtR were compared in the 166 women. The same applied for the obese and the overweight group, whereas in normal weight women there was significant association only between WC and LDL-Ch and between WHR and Ch/HDL-Ch ratio. Stepwise regression analysis showed that the proportion of variance in serum lipids did not change significantly when WHR or WHR+WHtR were added to WC into the regression model (18%, 18% and 18% for Ch; 13%, 18% and 18% for HDL-Ch; 18%, 18% and 12% for LDL-Ch; 35%, 35% and 37% for TG, respectively). These results indicate that WC is the main parameter associated with serum lipid levels and that the ratios studied do not provide additional substantial information in women who need weight management.
Collapse
Affiliation(s)
- M N Moreira-Andrés
- Department of Endocrinology, Hospital Universitario 12 de Octubre, Madrid, Spain.
| | | | | | | | | | | |
Collapse
|
11
|
Abstract
The case of a 37-year-old male diagnosed 16 years previously with ulcerative colitis, admitted on account of hemolytic anaemia and thrombocytopaenia that responded to immunosuppressive therapy, is reported. Despite various peculiarities discussed, this may be the first reported case of Evans' syndrome associated with ulcerative colitis.
Collapse
Affiliation(s)
- G Ucci
- Internal Medicine and Oncology Unit, A. Manzoni Hospital, Via dell'Eremo 9111, Lecco 23900, Italy.
| | | | | | | |
Collapse
|
12
|
López-Encuentra A, Duque-Medina JL, Rami-Porta R, de la Cámara AG, Ferrando P. Staging in lung cancer: is 3 cm a prognostic threshold in pathologic stage I non-small cell lung cancer? A multicenter study of 1,020 patients. Chest 2002; 121:1515-20. [PMID: 12006437 DOI: 10.1378/chest.121.5.1515] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.4] [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: 11/01/2022] Open
Abstract
INTRODUCTION Since 1974, a tumor size of 3 cm in diameter has been regarded as the prognostic threshold in the staging of bronchogenic carcinoma. OBJECTIVE To study the prognostic behavior of surgical-pathologic tumor size in non-small cell lung cancer (NSCLC) with complete resection. DESIGN Four-year multi-institutional prospective study from 1993 to 1997. PATIENTS Consecutive cases of NSCLC in pathologic stages IA-IB (pIA-pIB) treated surgically with complete resection in hospitals belonging to the Bronchogenic Carcinoma Co-operative Group of the Spanish Society of Pneumology and Thoracic Surgery (GCCB-S). METHODS The Schoenfeld procedure was used to identify different prognostic groups, considering 1 cm as the measurement unit. RESULTS Based on the 1,020 cases evaluated, four prognostic groups were identified: 0 to 2 cm (group A; n = 147), 2.1 to 4 cm (group B; n = 448), 4.1 to 7 cm (group C; n = 336), and > 7 cm (group D; n = 89). At 5 years, survival was 0.63 (95% confidence interval [CI], 0.58 to 0.68), 0.56 (95% CI, 0.53 to 0.59), 0.49 (95% CI, 0.46 to 0.52), and 0.38 (95% CI, 0.32 to 0.44) for groups A, B, C, and D, respectively. Differences between paired groups (log-rank) were significant: 0.0074 between groups A and B, 0.0048 between groups B and C, and 0.0034 between groups C and D. CONCLUSIONS In initial stages (pIA-pIB) of NSCLC, the 3-cm value was not found to behave as a prognostic threshold; in this study, four surgical-pathologic tumor size groups were identified with strong prognostic differences: from 0 to 2 cm, from 2.1 to 4 cm, from 4.1 to 7 cm, and > 7 cm.
Collapse
|
13
|
Heber B, Bothmer V, Dröge W, Kunow H, Müller-Mellin R, Sierks H, Wibberenz G, Ferrando P, Raviart A, Paizis C, Potgieter MS, Burger RA, Hattingh M, Haasbroek LJ, McComas D. Latitudinal distribution of >106 MeV protons and its relation to the ambient solar wind in the inner southern and northern heliosphere: Ulysses Cosmic and Solar Particle Investigation Kiel Electron Telescope Results. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/97ja01984] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
14
|
McDonald FB, Ferrando P, Heber B, Kunow H, McGuire R, Müller-Mellin R, Paizis C, Raviart A, Wibberenz G. A comparative study of cosmic ray radial and latitudinal gradients in the inner and outer heliosphere. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/96ja03673] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
15
|
Knott CN, Albergo S, Caccia Z, Chen C, Costa S, Crawford HJ, Cronqvist M, Engelage J, Ferrando P, Fonte R, Greiner L, Guzik TG, Insolia A, Jones FC, Lindstrom PJ, Mitchell JW, Potenza R, Romanski J, Russo GV, Soutoul A, Testard O, Tull CE, Tuvé C, Waddington CJ, Webber WR, Wefel JP. Interactions of relativistic neon to nickel projectiles in hydrogen, elemental production cross sections. Phys Rev C Nucl Phys 1996; 53:347-357. [PMID: 9970944 DOI: 10.1103/physrevc.53.347] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
16
|
Simpson JA, Connell JJ, Lopate C, McKibben RB, Zhang M, Anglin JD, Ferrando P, Rastoin C, Raviart A, Heber B, Muiller-Meliin R, Kunow H, Sierks H, Wibberenz G, Bothmer V, Marsden RG, Sanderson TR, Trattner KJ, Wenzel KP, Paizis C. Cosmic Ray and Solar Particle Investigations Over the South Polar Regions of the Sun. Science 1995; 268:1019-23. [PMID: 17774228 DOI: 10.1126/science.268.5213.1019] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Observations of galactic cosmic radiation and anomalous component nuclei with charged particle sensors on the Ulysses spacecraft showed that heliospheric magnetic field structure over the south solar pole does not permit substantially more direct access to the local interstellar cosmic ray spectrum than is possible in the equatorial zone. Fluxes of galactic cosmic rays and the anomalous component increased as a result of latitude gradients by less than 50% from the equator to -80 degrees . Thus, the modulated cosmic ray nucleon, electron, and anomalous component fluxes are nearly spherically symmetric in the inner solar system. The cosmic rays and the anomalous nuclear component underwent a continuous, -26 day recurrent modulation to -80.2 degrees , whereas all recurring magnetic field compressions and recurring streams in the solar wind disappeared above approximately 55 degrees S latitude.
Collapse
|
17
|
Guzik TG, Albergo S, Chen CX, Costa S, Crawford HJ, Engelage J, Ferrando P, Flores I, Greiner L, Jones FC, Knott CN, Ko S, Lindstrom PJ, Mazotta J, Mitchell JW, Romanski J, Potenza R, Soutoul A, Testard O, Tull CE, Tuve C, Waddington CJ, Webber WR, Wefel JP, Zhang X. A program to measure new energetic particle nuclear interaction cross sections. Adv Space Res 1994; 14:825-830. [PMID: 11540031 DOI: 10.1016/0273-1177(94)90547-9] [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] [Indexed: 05/23/2023]
Abstract
The Transport Collaboration, consisting of researchers from institutions in France, Germany, Italy and the USA, has established a program to make new measurements of nuclear interaction cross sections for heavy projectiles (Z > or = 2) in targets of liquid H2, He and heavier materials. Such cross sections directly affect calculations of galactic and solar cosmic ray transport through matter and are needed for accurate radiation hazard assessment. To date, the collaboration has obtained data using the LBL Bevalac HISS facility with 20 projectiles from 4He to 58Ni in the energy range 393-910 MeV/nucleon. Preliminary results from the analysis of these data are presented here and compared to other measurements and to cross section prediction formulae.
Collapse
Affiliation(s)
- T G Guzik
- Department of Physics and Astronomy, Louisiana State University, Baton Rouge 70808, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Chen C, Albergo S, Caccia Z, Costa S, Crawford HJ, Cronqvist M, Engelage J, Ferrando P, Fonte R, Greiner L, Guzik TG, Insolia A, Jones FC, Knott CN, Lindstrom PJ, Mitchell JW, Potenza R, Romanski J, Russo GV, Soutoul A, Testard O, Tull CE, Tuvé C, Waddington CJ, Webber WR, Wefel JP, Zhang X. Interactions in hydrogen of relativistic neon to nickel projectiles: Total charge-changing cross sections. Phys Rev C Nucl Phys 1994; 49:3200-3210. [PMID: 9969599 DOI: 10.1103/physrevc.49.3200] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
19
|
Simpson JA, Anglin JD, Balogh A, Burrows JR, Cowley SW, Ferrando P, Heber B, Hynds RJ, Kunow H, Marsden RG, McKibben RB, Müller-Mellin R, Page DE, Raviart A, Sanderson TR, Staines K, Wenzel KP, Wilson MD, Zhang M. Energetic Charged-Particle Phenomena in the Jovian Magnetosphere: First Results from the Ulysses COSPIN Collaboration. Science 1992; 257:1543-50. [PMID: 17776166 DOI: 10.1126/science.257.5076.1543] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The Ulysses spacecraft made the first exploration of the region of Jupiter's magnetosphere at high Jovigraphic latitudes ( approximately 37 degrees south) on the dusk side and reached higher magnetic latitudes ( approximately 49 degrees north) on the day side than any previous mission to Jupiter. The cosmic and solar particle investigations (COSPIN) instrumentation achieved a remarkably well integrated set of observations of energetic charged particles in the energy ranges of approximately 1 to 170 megaelectron volts for electrons and 0.3 to 20 megaelectron volts for protons and heavier nuclei. The new findings include (i) an apparent polar cap region in the northern hemisphere in which energetic charged particles following Jovian magnetic field lines may have direct access to the interplanetary medium, (ii) high-energy electron bursts (rise times </= 1 minute and energies extending to > approximately 17 megaelectron volts) on the dusk side that are apparently associated with field-aligned currents and radio burst emissions, (iii) persistence of the global 10-hour relativistic electron "clock" phenomenon throughout Jupiter's magnetosphere, (iv) on the basis of charged-particle measurements, apparent dragging of magnetic field lines at large radii in the dusk sector toward the tail, and (v) consistent outflow of megaelectron volt electrons and large-scale departures from corotation for nucleons.
Collapse
|
20
|
Soutoul A, Ferrando P. Propagation of cosmic-rays nuclei in the interstellar medium: The importance of energy losses revisited. ACTA ACUST UNITED AC 1989. [DOI: 10.1063/1.37975] [Citation(s) in RCA: 2] [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: 11/14/2022]
|
21
|
Ferrando P, Webber WR, Goret P, Kish JC, Schrier DA, Soutoul A, Testard O. Measurement of 12C, 16O, and 56Fe charge changing cross sections in helium at high energy, comparison with cross sections in hydrogen, and application to cosmic-ray propagation. Phys Rev C Nucl Phys 1988; 37:1490-1501. [PMID: 9954603 DOI: 10.1103/physrevc.37.1490] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
22
|
García-Sagredo JM, Lozano C, Ferrando P, San Román C. Mentally retarded siblings with congenital heart defect, peculiar facies and cryptorchidism in the male: possible McDonough syndrome with coincidental (X; 20) translocation. Clin Genet 1984; 26:117-24. [PMID: 6147215 DOI: 10.1111/j.1399-0004.1984.tb00800.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We report on a family in which two of the three children (girl and boy) have a MCA/MR syndrome consisting of peculiar facies, retarded psychomotor development, mental retardation, congenital heart defect, kyphoscoliosis, diastasis recti, and cryptorchidism in the boy. This syndrome is quite similar to that of the only family previously described and which was denominated McDonough Syndrome. The syndrome is delineated and autosomal recessive inheritance is suggested as the most likely etiology. A balanced translocation (X; 20) in the affected boy and in the unaffected mother was a coincidental finding.
Collapse
|
23
|
Ferrando P, San Román C, Rodriguez de Cordoba S, Arnaiz-Villena A. Partial trisomy 6p: 46,XX, -10, der(10),t(6;10) (p22;q26)pat and HLA localisation. J Med Genet 1981; 18:231-4. [PMID: 7241548 PMCID: PMC1048712 DOI: 10.1136/jmg.18.3.231] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A child with multiple facial anomalies showed partial trisomy 6p, 46,XX, -10,der(10), t(6;10)(p22;q26)pat. Family studies suggested that the HLA complex is probably between 6p22.4 and 6p21.05. The HLA system had previously been localised between 6p21 and 23(12) and more precisely located by Berger et al3 above 6p21.05. We have studied the clinical presentation and the HLA system of the family of a child with partial trisomy 6p derived from a paternal translocation. Since Breuning et al4 collected and studied the first six known cases of trisomy 6p, 12 cases have been found with similar clinical manifestations, varying in the breakpoint and the part of 6p which was triplicated. Independent of the classification of the clinical manifestations of new syndromes, the importance of duplication-deficiency chromosomal abnormalities is determined by the localised of gene loci. The HLA system was localised by Berger et al3 at above 6p21.05. Our results suggest that the HLA system is below 6p22.4, the breakpoint found in the balanced translocation 6p22;10q26 of the father which produced the partial trisomy 6p22 leads to pter of the proband.
Collapse
|
24
|
de Pablo CE, García Sagredo JM, Ferro MT, Ferrando P, San Román C. Interstitial deletion in the long arms of chromosome 1: 46,XY,del(1)(pter leads to q22::q25 leads to qter). J Med Genet 1980; 17:483-6. [PMID: 6937620 PMCID: PMC1885930 DOI: 10.1136/jmg.17.6.483] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A child was brought to us with multiple anomalies. On examination we found an interstitial deletion in the long arms of chromosome 1. We studied genetic and chromosome markers, comparing our clinical and cytogenetic findings with other reported cases of chromosome 1 interstitial deletion.
Collapse
|