نتایج جستجو برای: water limitation
تعداد نتایج: 599858 فیلتر نتایج به سال:
BACKGROUND The association between low socioeconomic status and poor physical functioning has been well described; biomedical factors may play an important role in explaining these differences. This study examines the association between socioeconomic status and incident mobility limitation in well-functioning older adults, and seeks to determine whether this link could be explained by biomedic...
OBJECTIVES To examine gender and regional differences in health expectancies based on the measure of mobility. METHODS Health expectancies by gender and region were computed by Sullivan's method from the fourth Thai National Health Examination Survey (2009). A total of 9,210 older persons aged 60 years and older were included. Mobility limitation was defined as self-reporting of ability to pe...
In highly solar irradiated areas, apple production can face challenges due to high evaporative water demands. Shading be used lower irrigation requirements and make growing more sustainable. this trial, a white exclusion net (40% shading) integrated with rain protection was compared regular anti-hail black (20% shading), on Rosy Glow apple. Crop physiology, yield quality parameters were monitor...
An understanding of the ecological factors that regulate natural populations of Aedes aegypti mosquitoes can improve control and reduce the incidence of dengue (DF) and dengue hemorrhagic fever (DHF) in tropical areas. We investigated whether immature Ae. aegypti in water-storage containers from an urban area were under food limitation. We used starvation resistance (number of days alive withou...
Nitrogen fixation, the enzymatic conversion of atmospheric N (N 2) to ammonia (NH 3), is a microbially mediated process by which "new" N is supplied to N-deficient water bodies. Certain bloom-forming cyanobacterial species are capable of conducting N 2 fixation; hence, they are able to circumvent N limitation in these waters. However, this anaerobic process is highly sensitive to oxygen, and si...
flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
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