منابع مشابه
The energy expenditure of coalminers at work.
This survey was intended to provide a basis of information on the energy expenditures for the main component tasks in coal-mining, carried out at different rates and in different postures. Such information is frequently required for studies of the physiological effects of coal-mining; these values reported here were required in particular for studies intended to define thermal limits of the env...
متن کاملReligious attendance after elevated depressive symptoms: is selection bias at work?
In an attempt to determine if selection bias could be a reason that religious attendance and depression are related, the predictive value of elevated depressive symptoms for a decrease in future attendance at religious services was examined in a longitudinal panel of 1,673 Dutch adults. Religious attendance was assessed yearly over five years using the single question, "how often do you attend ...
متن کاملNocturnal asthma in children affects school attendance, school performance, and parents' work attendance.
CONTEXT Asthma symptoms that occur at night may signal worse asthma control, but the nighttime occurrence may have additional clinical significance. To date, however, there have been few studies of the impact of nocturnal awakening from asthma on children with the disease, including problems with daytime functioning. OBJECTIVE To determine if school absenteeism and school performance in child...
متن کاملConstant-Attendance Allowances for Non-Work-Related Disability
inclusion of new predictor variables may be important in accounting for the unexplained variance. For example, psychological factors such as work-motivation, self-concept, and work-satisfaction may help predict what the outcome of the disability will be. The emphasis of this study is on the consequences of chronic disability. Results show that severity of disability alone does not determine the...
متن کاملNon-attendance at a psychiatric clinic
ness and treatment may provide valuable insight into reasons for not attending. This consumer orientated approach could enable clinicians not only to improve clinic attendance but to assess their treatment efficacy. The aims of this study were: (a) to assess the rate of non-attendance at a psychiatric out-patient clinic (b) to compare personal and demographic characteristics of the non-attender...
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ژورنال
عنوان ژورنال: Occupational and Environmental Medicine
سال: 1964
ISSN: 1351-0711
DOI: 10.1136/oem.21.4.328