نتایج جستجو برای: worker

تعداد نتایج: 20691  

Journal: :international journal of occupational hygiene 0
sergey maksimov department epidemiology of cardiovascular diseases, institute for complex issues of cardiovascular diseases, kemerovo, russian federation. galina artamonova department epidemiology of cardiovascular diseases, institute for complex issues of cardiovascular diseases, kemerovo, russian federation.

healthy hire effect (hhe) is considered as an epidemiological phenomenon, complicating the assessment of a true cause - effect relationship between occupational exposure and health status of workers. the current study was aimed at identification and elimination of hhe in the risk assessment of arterial hypertension (ah) in coal miners. overall, 1553 miners, working in west siberia, were enrolle...

ژورنال: علوم آب و خاک 2000
آخوندی, منصور, طهماسبی, غلامحسین , عبادی , رحیم , قوجق, دردی ,

An important and fundamental step in breeding honeybees is the separation of honeybee populations in Iran. During the years 1992-1996, several research works were directed towards the investigation of genetic populations of the Iranian honeybee (Apis mellifera L.), using biochemical methods. For this purpose, samples of worker bees were taken from 251 colonies of 115 apiaries in 84 cities in 21...

Journal: :Biology letters 2005
Madeleine Beekman Benjamin P Oldroyd

Worker policing, wherein social insect workers prevent their sisters from reproducing by eating worker-laid eggs, is recognized as a textbook example of kin selection in action. However, the evolutionary basis of policing was recently challenged in a study that suggested that police-workers remove worker-laid eggs not because rearing workers' sons reduces worker fitness, but merely because work...

2016
David A. Patterson Catherine N. Dulmus Maria Cristalli

Objectives: Mental health organizations are strongly encouraged to implement empirically supported treatments (ESTs), however little is known about their working environments. The present study investigated how provider demographics, workplace environment and whether ESTs were used affected the worker morale. Methods: Front-line workers (N = 1,273) from 55 different programs in a single, large ...

Journal: :Journal of evolutionary biology 2011
T A Linksvayer O Kaftanoglu E Akyol S Blatch G V Amdam R E Page

Social evolution in honey bees has produced strong queen-worker dimorphism for plastic traits that depend on larval nutrition. The honey bee developmental programme includes both larval components that determine plastic growth responses to larval nutrition and nurse components that regulate larval nutrition. We studied how these two components contribute to variation in worker and queen body si...

Journal: :The Journal of applied psychology 2004
Kenneth Howard Doerr Tali Freed Terence R Mitchell Chester A Schriesheim Xiaohua Tracy Zhou

Work flow policies are shown to induce a change in average between-workers variability (worker heterogeneity) and within-worker variability in performance times. In a laboratory experiment, the authors measured the levels of worker heterogeneity and within-worker variability under an individual performance condition, a work sharing condition, and a fixed assignment condition. The work sharing p...

2012
Qian Wang Sylvain Lassalle Antony R. Mileham Geraint W. Owen

This paper mathematically analyses the varying magnitude of production loss, which may occur due to idle time (inprocess waiting time and traveling time) on a linear walking worker assembly line. Within this flexible and reconfigurable assembly system, each worker travels down the line carrying out each assembly task at each station; and each worker accomplishes the assembly of a unit from star...

2015
Gregg Trueman Jocelyn Lockyer

Background: Multisource feedback (MSF) is increasingly being used as one of the components in revalidation and recertification processes to guide physicians’ continuing professional development. Data provided by coworkers (e.g., nurses, pharmacists, technicians) are recognized as integral for assessing a physician’s communication, teamwork and interprofessional abilities. The purpose of this st...

Journal: :Social science & medicine 2013
Maureen F Dollard Daniel Y Neser

Work stress is recognized globally as a social determinant of worker health. Therefore we explored whether work stress related factors explained national differences in health and productivity (gross domestic product (GDP)). We proposed a national worker health productivity model whereby macro market power factors (i.e. union density), influence national worker health and GDP via work psychosoc...

Journal: :HealthcarePapers 2007
Mario A Possamai

The outbreak of severe acute respiratory syndrome (SARS) in 2003 provided valuable lessons for protecting health workers during an influenza pandemic or other public health crisis. In its final report, the SARS Commission concluded that a key lesson in worker safety was the precautionary principle. It stated that reasonable actions to reduce risk should not await scientific certainty. As recomm...

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