1,371 results match your criteria poisson distributed


Influence of ambient temperature and diurnal temperature variation on the premature rupture of membranes in East China: A distributed lag nonlinear time series analysis.

Environ Res 2021 Apr 9:111145. Epub 2021 Apr 9.

International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China; Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, China. Electronic address:

Background: . Extreme ambient temperature has an adverse effect on pregnancy outcomes, but the conclusions have been inconsistent. The influence of ambient temperature and diurnal temperature variation on the premature rupture of membranes (PROM) needs further study. Read More

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A novel analytical population TCP model includes cell density and volume variations: application to canine brain tumor.

Int J Radiat Oncol Biol Phys 2021 Apr 7. Epub 2021 Apr 7.

Department of Physics, University of Zurich, Zurich, Switzerland; Radiotherapy Hirslanden, Rain 32, Aarau, Switzerland. Electronic address:

Purpose: Tumor control probability (TCP) models based on Poisson statistics characterize the distribution of surviving clonogens. Thus enabling the calculation of TCP for individuals. In order to mathematically describe clinically observed survival data of patient cohorts it is necessary to extend the Poisson TCP model. Read More

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Association between extreme ambient temperatures and general indistinct and work-related road crashes. A nationwide study in Italy.

Accid Anal Prev 2021 Apr 6;155:106110. Epub 2021 Apr 6.

Occupational and Environmental Medicine, Epidemiology and Hygiene Department, Italian Workers' Compensation Authority (INAIL), Monte Porzio Catone, RM, Italy.

Despite the relevance of road crashes and their impact on social and health care costs, the effects of extreme temperatures on road crashes risk have been scarcely investigated, particularly for those occurring in occupational activities. A nationwide epidemiological study was carried out to estimate the risk of general indistinct and work-related road crashes related with extreme temperatures and to identify crash and occupation parameters mostly involved. Data about road crashes, resulting in death or injury, occurring during years 2013-2015 in Italy, were collected from the National Institute of Statistics, for general indistinct road crashes, and from the compensation claim applications registered by the national workers' compensation authority, for work-related ones. Read More

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Euploidy rates are not affected when embryos are cultured in a continuous (CCM) or sequential culture medium (SCM): a sibling oocyte study.

J Assist Reprod Genet 2021 Apr 9. Epub 2021 Apr 9.

ART Fertility Clinics, Abu Dhabi, United Arab Emirates.

Purpose: To determine if euploidy rates and embryo development differ when blastocysts are cultured in CCM or SCM.

Method: A single-center retrospective observational study was performed from September 2018 to March 2019. Patients [23-46 years] with at least four fresh mature oocytes (MII) without severe male factor infertility were included. Read More

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Relationship Between Influenza, Temperature, and Type 1 Myocardial Infarction: An Ecological Time-Series Study.

J Am Heart Assoc 2021 Apr 8:e019608. Epub 2021 Apr 8.

Clinical Pharmacology Unit Hospital Universitario Príncipe de Asturias Alcalá de Henares Madrid Spain.

Background Previous studies investigating the relationship of influenza with acute myocardial infarction (AMI) have not distinguished between AMI types 1 and 2. Influenza and cold temperature can explain the increased incidence of AMI during winter but, because they are closely related in temperate regions, their relative contribution is unknown. Methods and Results The temporal relationship between incidence rates of AMI with demonstrated culprit plaque (type 1 AMI) from the regional primary angioplasty network and influenza, adjusted for ambient temperature, was studied in Madrid region (Spain) during 5 influenza seasons (from June 2013 to June 2018). Read More

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Tuning ensemble-averaged cargo run length via fractional change in mean kinesin number.

Phys Biol 2021 Apr 7. Epub 2021 Apr 7.

University of California Merced, Physics, Merced, California, 95343, UNITED STATES.

The number of motors carrying cargos in biological cells is not well-defined, instead varying from cargo to cargo about a statistical mean. Predictive understanding of motility in cells therefore requires quantitative insights into mixed ensembles of cargos. Toward this goal, here we employed Monte Carlo simulations to investigate statistical ensembles of cargos carried by a Poisson-distributed number of motors. Read More

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Impact of different heat wave definitions on daily mortality in Bandafassi, Senegal.

PLoS One 2021 5;16(4):e0249199. Epub 2021 Apr 5.

NOAA Center for Weather and Climate Prediction Climate Prediction Center College Park, Maryland, United States of America.

Objective: The aim of this study is to find the most suitable heat wave definition among 15 different ones and to evaluate its impact on total, age-, and gender-specific mortality for Bandafassi, Senegal.

Methods: Daily weather station data were obtained from Kedougou situated at 17 km from Bandafassi from 1973 to 2012. Poisson generalized additive model (GAM) and distributed lag non-linear model (DLNM) are used to investigate the effect of heat wave on mortality and to evaluate the nonlinear association of heat wave definitions at different lag days, respectively. Read More

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Age of information of a server with energy requirements.

Authors:
Josu Doncel

PeerJ Comput Sci 2021 1;7:e354. Epub 2021 Mar 1.

University of the Basque Country, UPV/EHU, Leioa, Spain.

We investigate a system with Poisson arrivals to two queues. One queue stores the status updates of the process of interest (or data packets) and the other handles the energy that is required to deliver the updates to the monitor. We consider that the energy is represented by packets of discrete unit. Read More

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Effect of diurnal temperature change on cardiovascular risks differed under opposite temperature trends.

Environ Sci Pollut Res Int 2021 Mar 25. Epub 2021 Mar 25.

Chinese PLA General Hospital, Beijing, 100000, China.

Temperature change between neighboring days (TCN) is an important trigger for cardiovascular diseases, but the modulated effects by seasonal temperature trends have been barely taken into account. A quantified comparison between impacts of positive TCNs (temperature rise) and negative situations (temperature drop) is also needed. We evaluated the associations of TCNs with emergency room (ER) visits for coronary heart disease (CHD) and cerebral infarction (CI) in Beijing, China, from 2008 to 2012. Read More

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THE ROLE OF SPIRITUALITY AND RELIGIOUSNESS IN AIDING RECOVERY FROM ALCOHOL AND OTHER DRUG PROBLEMS: AN INVESTIGATION IN A NATIONAL U.S. SAMPLE.

Psycholog Relig Spiritual 2020 Feb 12;12(1):116-123. Epub 2019 Dec 12.

Recovery Research Institute, Massachusetts General Hospital and Harvard Medical School, 151 Merrimac Street, 6 Floor, Boston, MA 02114.

Background: More Americans than ever before are identifying as "spiritual but not religious". Both spirituality and religiousness (S/R) are of interest in the addiction field as they are related to alcohol and other drug (AOD) problems and are central to some recovery pathways. Yet, little is known overall about S/R identification among people in recovery, the role these play in aiding recovery, and whether they play more or less of a role for certain sub-groups (e. Read More

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February 2020

Geospatial epidemiology of leprosy in northwest Bangladesh: a 20-year retrospective observational study.

Infect Dis Poverty 2021 Mar 22;10(1):36. Epub 2021 Mar 22.

Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.

Background: Leprosy is known to be unevenly distributed between and within countries. High risk areas or 'hotspots' are potential targets for preventive interventions, but the underlying epidemiologic mechanisms that enable hotspots to emerge, are not yet fully understood. In this study, we identified and characterized leprosy hotspots in Bangladesh, a country with one of the highest leprosy endemicity levels globally. Read More

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Effect of extreme temperatures on daily emergency room visits for mental disorders.

Environ Sci Pollut Res Int 2021 Mar 22. Epub 2021 Mar 22.

Department of Environmental Health Sciences, Yale School of Public Health, New Haven, CT, USA.

Relatively few studies investigated the effects of extreme temperatures (both heat and cold) on mental health (ICD-9: 290-319; ICD-10: F00-F99) and the potential effect modifications by individuals' age, sex, and race. We aimed to explore the effect of extreme temperatures of both heat and cold on the emergency room (ER) visits for mental health disorders, and conducted a stratified analysis to identify possible susceptible population in Erie and Niagara counties, NY, USA. To assess the short-term impacts of daily maximum temperature on ER visits related to mental disorders (2009-2015), we applied a quasi-Poisson generalized linear model combined with a distributed lag non-linear model (DLNM). Read More

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Temperatures and health costs of emergency department visits: A multisite time series study in China.

Environ Res 2021 Mar 18;197:111023. Epub 2021 Mar 18.

National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China. Electronic address:

Background: Evidence is limited regarding the association between temperatures and health costs.

Objectives: We tried to investigate the association between temperatures and emergency department visits (EDVs) costs in China.

Methods: Daily data on EDVs costs, weather, air pollution were collected from 17 sites in China during 2014-2018. Read More

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Temporal trends of the association between extreme temperatures and hospitalisations for schizophrenia in Hefei, China from 2005 to 2014.

Occup Environ Med 2021 Mar 18. Epub 2021 Mar 18.

Epidemiology and Health Statistics, Anhui Medical University, Hefei, Anhui, China

Objective: We aimed to examine the temporal trends of the association between extreme temperature and schizophrenia (SCZ) hospitalisations in Hefei, China.

Methods: We collected time-series data on SCZ hospitalisations for 10 years (2005-2014), with a total of 36 607 cases registered. We used quasi-Poisson regression and distributed lag non-linear model (DLNM) to assess the association between extreme temperature (cold and heat) and SCZ hospitalisations. Read More

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Emergency hospital admissions for cardiovascular diseases attributed to air pollution in Tehran during 2016-2019.

Environ Sci Pollut Res Int 2021 Mar 17. Epub 2021 Mar 17.

Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Science, Tehran, Iran.

The burden of five main air pollutants, including CO, O3, NO2, SO2, and PM2.5, on the emergency department visits (EDVs) during January 2016-December 2019 due to all cardiovascular diseases was assessed in Tehran by using a time-series model. The pollutants data were collected from Iran Department of Environment including 10 air pollution monitoring stations for the period of our study. Read More

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Immediate and delayed effects of climatic factors on hospital admissions for schizophrenia in Queensland Australia: A time series analysis.

Environ Res 2021 Mar 11;197:111003. Epub 2021 Mar 11.

School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Queensland, Australia.

Background: Evidence of immediate and delayed effects of climatic drivers on hospital admissions for schizophrenia is limited and inconsistent. We aimed to assess the association between climatic factors and daily hospital admissions for schizophrenia in Queensland, Australia.

Methods: Daily hospital admissions for schizophrenia from January 1, 1996 to December 31, 2015 in all private and public hospitals of Queensland were obtained from Queensland Health. Read More

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Image-histogram-based secondary electron counting to evaluate detective quantum efficiency in SEM.

Ultramicroscopy 2021 Feb 27;224:113238. Epub 2021 Feb 27.

Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, United States of America.

Scanning electron microscopy is a powerful tool for nanoscale imaging of organic and inorganic materials. An important metric for characterizing the limits of performance of these microscopes is the Detective Quantum Efficiency (DQE), which measures the fraction of emitted secondary electrons (SEs) that are detected by the SE detector. However, common techniques for measuring DQE approximate the SE emission process to be Poisson distributed, which can lead to incorrect DQE values. Read More

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February 2021

Influence of temperature, and of relative and absolute humidity on COVID-19 incidence in England - A multi-city time-series study.

Environ Res 2021 Mar 6;196:110977. Epub 2021 Mar 6.

Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom; Department of Statistics, Computer Science and Applications "G. Parenti", University of Florence, Florence, Italy.

Background: SARS-CoV-2 caused the COVID-19 pandemic in 2020. The virus is likely to show seasonal dynamics in European climates as other respiratory viruses and coronaviruses do. Analysing the association with meteorological factors might be helpful to anticipate how cases will develop with changing seasons. Read More

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Geographical Pattern of COVID-19-Related Outcomes over the Pandemic Period in France: A Nationwide Socio-Environmental Study.

Int J Environ Res Public Health 2021 02 13;18(4). Epub 2021 Feb 13.

Laboratoire Image Ville Environnement, LIVE UMR 7362 CNRS, University of Strasbourg, 67000 Strasbourg, France.

Background: Several studies have investigated the implication of air pollution and some social determinants on COVID-19-related outcomes, but none of them assessed the implication of spatial repartition of the socio-environmental determinants on geographic variations of COVID-19 related outcomes. Understanding spatial heterogeneity in relation to the socio-environmental determinant and COVID-19-related outcomes is central to target interventions toward a vulnerable population.

Objectives: To determine the spatial variability of COVID-19 related outcomes among the elderly in France at the department level. Read More

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February 2021

Short-term effects of ambient temperature and road traffic accident injuries in Dalian, Northern China: A distributed lag non-linear analysis.

Accid Anal Prev 2021 Apr 26;153:106057. Epub 2021 Feb 26.

Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China; Center for Injury Control and Prevention, School of Public Health, Anhui Medical University, No. 81 Meishan Road, Hefei, 230032, Anhui, China. Electronic address:

Background: Although traffic accidents cause considerable economic losses and injuries to individuals, families, and communities, little is known about the impact of meteorological factors on the incidence of traffic accident injuries (TAIs). Therefore, a time-series study was conducted to explore the effect of meteorological variables on TAIs in Dalian, Northern China.

Methods: Poisson generalized linear models (PGLM) combined with distributed lag nonlinear models (DLNM) were used to estimate the association between daily TAIs and ambient temperature in Dalian, China, 2015-2017. Read More

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Increased susceptibility to temperature variation for non-accidental emergency ambulance dispatches in Shenzhen, China.

Environ Sci Pollut Res Int 2021 Feb 23. Epub 2021 Feb 23.

Department of Epidemiology and Biostatistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, No.16 Section 3, Renmin South Road, Chengdu, 610044, China.

Most studies focused on the temporal trend of mortality risk associated with temperature exposure. The relative role of heat, cold, and temperature variation (TV) on morbidity and its temporal trends are explored insufficiently. This study aims to investigate the temporal trends of emergency ambulance dispatch (EAD) risk and the attributable burden of heat, cold, and hourly temperature variation (HTV). Read More

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February 2021

Short-term exposure to extreme temperature and risk of hospital admission due to cardiovascular diseases.

Int J Environ Health Res 2021 Apr 5;31(3):344-354. Epub 2019 Sep 5.

Occupational Health Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences , Yazd, Iran.

: Numerous epidemiological studies have reported relevance of morbidity and mortality from cardiovascular diseases with short-term exposure to environmental temperature. In this study, we examined the hypothesis between temperature indices and hospital admission because of cardiovascular diseases. : The daily number of CVDs was obtained from all hospitals of the Sabzevar city. Read More

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Asthma self-management at work, asthma morbidity, and the subjective prognosis of gainful employment - the role of work engagement and overcommitment: a cross-sectional study.

J Asthma 2021 Mar 15:1-11. Epub 2021 Mar 15.

Institute of Occupational, Social, and Environmental Medicine, Centre for Health and Society, Faculty of Medicine, University of Düsseldorf, Düsseldorf, Germany.

Objective: Work engagement is considered a constructive and satisfying state of mind promoting well-being, whereas overcommitment contributes to ill-health. We investigated if these psychosocial factors are related to asthma self-management at the workplace (i.e. Read More

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Association between ambient temperature and childhood respiratory hospital visits in Beijing, China: a time-series study (2013-2017).

Environ Sci Pollut Res Int 2021 Feb 8. Epub 2021 Feb 8.

Department of Occupational and Environmental Health, School of Public Health, Peking University, Beijing, China.

Little is known on the potential impact of temperature on respiratory morbidity, especially for children whose respiratory system can be more vulnerable to climate changes. In this time-series study, Poisson generalized additive models combined with distributed lag nonlinear models were used to assess the associations between ambient temperature and childhood respiratory morbidity. The impacts of extreme cold and hot temperatures were calculated as cumulative relative risks (cum. Read More

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February 2021

How does vulnerability to COVID-19 vary between communities in England? Developing a Small Area Vulnerability Index (SAVI).

J Epidemiol Community Health 2021 Feb 4. Epub 2021 Feb 4.

Department of Public Health, Policy and Systems, University of Liverpool, Liverpool, UK.

Background: During the initial wave of the COVID-19 epidemic in England, several population characteristics were associated with increased risk of mortality-including, age, ethnicity, income deprivation, care home residence and housing conditions. In order to target control measures and plan for future waves of the epidemic, public health agencies need to understand how these vulnerabilities are distributed across and clustered within communities.

Methods: We performed a cross-sectional ecological analysis across 6789 small areas in England. Read More

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February 2021