Results 261 to 270 of about 585,774 (283)
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Risk of breast cancer in female flight attendants: a population-based study (Iceland)
Cancer Causes & Control, 2001To study whether increased cancer risk, particularly of cancer types previously related to radiation, was found among cabin attendants, using employment time as a surrogate of exposure to cosmic radiation.A cohort of 1690 cabin attendants, 158 men and 1532 women from the Icelandic Cabin Crew Association and two airline companies in Iceland, was ...
V, Rafnsson +3 more
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1987
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Fowler, H. G. +2 more
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(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Fowler, H. G. +2 more
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Comparison of anthropometry of Brazilian and US Military population for flight deck design
International Journal of Industrial Ergonomics, 2018Abstract A valid anthropometric dataset is essential to optimize the design of personal equipment and aircrafts. Until recently there were no anthropometric data available for the Brazilian Air Force (FAB) pilot population, and hence international military data have often been used in Defense procurement specifications.
Gilvan V. da Silva +2 more
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Flight morphology in fragmented populations of a rare British butterfly, Hesperia comma
Biological Conservation, 1999Abstract In modern landscapes, many populations of rare species are restricted to fragments of formerly extensive habitat. However, the potential for evolutionary changes in dispersal ability to occur within these fragmented populations has received little attention.
J.K Hill, C.D Thomas, O.T Lewis
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Journal of Genetics, 2014
In the present study, we tested the hypothesis whether flight-related traits such as wing area, flight-muscle ratio, wing loading and dispersal yield evidence of geographical variation in nine wild-collected as well as laboratory-reared (at 21°C) latitudinal populations of Drosophila melanogaster from the Indian subcontinent.
Veer, Bhan +2 more
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In the present study, we tested the hypothesis whether flight-related traits such as wing area, flight-muscle ratio, wing loading and dispersal yield evidence of geographical variation in nine wild-collected as well as laboratory-reared (at 21°C) latitudinal populations of Drosophila melanogaster from the Indian subcontinent.
Veer, Bhan +2 more
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Population dynamics of gyrinid beetles
Oecologia, 1983As part of a comprehensive study of the population dynamics of the whirligig beetle Gyrinus marinus Gyll. experiments were performed concerning flight activity. From capture-recapture experiments it appears that only a small percentage of the beetles move from one pond to another by flight. Flight activity only occurs if the weather is favourable, i.e.
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Gene Flow among Conspecific Populations of Baetis sp. (Ephemeroptera): Adult Flight and Larval Drift
Journal of the North American Benthological Society, 1995The genetic structure of populations of Baetis sp. (Ephemeroptera:Baetidae) was used to draw inferences about the means of dispersal within and between stream systems of the Conondale Range, Queensland, Australia. Allozyme electrophoresis was used to examine allelic frequencies at five variable loci in geographically distant populations of nymphs in ...
Sonja K. Schmidt +2 more
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Acta Astronautica, 2006
A strain of microalgae (Anabaena siamensis) had been cultured in a miniaturized bioreactor during a retrievable satellite flight for 15 days. By means of remote sensing equipment installed in the satellite, we gained the growth curve of microalgae population in space every day in real time. The curve indicated that the growth of microalgae in space was
Gaohong Wang +7 more
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A strain of microalgae (Anabaena siamensis) had been cultured in a miniaturized bioreactor during a retrievable satellite flight for 15 days. By means of remote sensing equipment installed in the satellite, we gained the growth curve of microalgae population in space every day in real time. The curve indicated that the growth of microalgae in space was
Gaohong Wang +7 more
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L'Encephale, 2017
The aim of our study was to investigate the influence of demographic factors (gender and age), work related factors (the position and years of practice) and psychosocial risk factors (cognitive demands, demands to hide emotions, work-family conflict, offensive behaviors…) on the development of burnout among flight attendants, and the nature of ...
N, Richa, H, Zreik, S, Richa
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The aim of our study was to investigate the influence of demographic factors (gender and age), work related factors (the position and years of practice) and psychosocial risk factors (cognitive demands, demands to hide emotions, work-family conflict, offensive behaviors…) on the development of burnout among flight attendants, and the nature of ...
N, Richa, H, Zreik, S, Richa
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Entomologia Experimentalis et Applicata, 1997
AbstractThe influence of population density and aggregation pheromone were investigated as possible flight initiating factors for Prostephanus truncatus (Horn) (Col.: Bostrichidae). Maize grains (175 g in glass jars) were infested with 20, 50, 150 or 300 beetles, all of which were removed after 2 weeks.
D. Scholz +3 more
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AbstractThe influence of population density and aggregation pheromone were investigated as possible flight initiating factors for Prostephanus truncatus (Horn) (Col.: Bostrichidae). Maize grains (175 g in glass jars) were infested with 20, 50, 150 or 300 beetles, all of which were removed after 2 weeks.
D. Scholz +3 more
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