نتایج جستجو برای: western sources
تعداد نتایج: 468220 فیلتر نتایج به سال:
A season-long survey of common weeds was taken near onion and potato fields located within a large vegetable production region in western New York in 2008 and 2009. The objective was to determine the abundance of weed species known as hosts for Iris yellow spot virus (IYSV), a serious pathogen of onion, Potato leafroll virus (PLRV) and Potato virus Y (PVY), which are major pathogens of potato. ...
IT is now nearly 6 years since the beginning of the Ophthalmic Surveys of Western Australia. During that time many thousands of school children of all races have been examined and the incidence of trachoma in the general population, white and native together, has been found to be approximately 30 per cent. If persons with aboriginal blood alone are considered, the percentage rises to 58 per cen...
•Plasma lipid metabolites may be useful indicators of mass changes in migratory birds. To test utility of plasma metabolites in field studies, we examined effects of several extrinsic (bleed time, time of day, location) and intrinsic (body mass, sex, age, migratory state) factors on plasma concentrations of triglycérides (TRIG), glycerol (GLYC), and B-OHbutyrate (BUTY) in free-living Western Sa...
BACKGROUND The Western Denmark Heart Registry (WDHR) has not previously been described as a research tool in clinical epidemiology. OBJECTIVES We examined the setting, organization, content, data quality, and research potential of the WDHR. METHOD We collected information from members of the WDHR organization, including the committee of representatives, the board, the data management group,...
Many epidemiological studies have revealed consistent associations between ambient concentrations of inhalable (PM10) particles and their elemental composition with adverse respiratory health effects. On the other hand, suspended particulate matter emissions from several types of sources can be identified by the investigation of their particle element composition. The objectives of this work we...
0146-6380/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.orggeochem.2011.05.003 ⇑ Corresponding author. Tel.: +1 508 289 2322; fax E-mail address: [email protected] (B.A.S. Van M Intact polar membrane lipids are essential components of microbial membranes and recent work has uncovered a diversity of them occurring in the ocean. While it has long been understood that lipid composition var...
BACKGROUND The practice of naturopathy and Western herbal medicine (WHM) was built on traditional evidence but may be undergoing change with the advent of scientific evidence. The aims of this research were to provide a better understanding of practitioners' attitudes towards evidence, information sources, professional regulation and their knowledge about the evidence of commonly used complemen...
There is a need for pesticide water monitoring in South Africa and for community awareness with regard to chemical contamination of rural water sources. The results of two descriptive studies in the rural Western Cape are reported. One assessed water usage and the knowledge, attitudes and practices in relation to water of farm residents (229 participants from 60 farms) in the Slanghoek Valley, ...
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