نتایج جستجو برای: single sample count
تعداد نتایج: 1369426 فیلتر نتایج به سال:
BACKGROUND Early initiation of antenatal care visits is an essential component of services to improving maternal and new born health. The Ethiopian Demographic and Health Survey conducted in 2011 indicated that only 11% of pregnant women start antenatal care in the first trimester. However, detailed study to identify factors associated with late initiation of care has not been conducted in Addi...
Background: CD4 count is the most important indicator of the degree of immune deficiency in HIV-positive patients. The goal of this research was to study the relationship between CD4 count and psychological disorders in these patients. Materials and methods: In this cross-sectional study, subjects were studied from June 2004 for one year in Sina hospital in Kermanshah. HIV infection was confi...
the mediterranean flour moth, ephestia kuehniella zeller, is one of the major pests in stored products worldwide. several problems assossiated with the use of conventional insecticides have strongly demonstrated the need for applying alternative safe compounds such as insect growth regulators (igrs). in the present study, growth regulating activity and hematological effects of pyriproxifen and ...
BACKGROUND Genome-wide association studies are currently identifying new loci with potential roles in thrombosis and hemostasis: these loci include novel polymorphisms associated with platelet function traits and count. However, no genome-wide study performed on children has been reported to date, in spite of the potential that these subjects have in genetic studies, when compared to adults, gi...
We present the first feasible method for sampling a dynamic data stream with deletions, where the sample consists of pairs (k,Ck) of a value k and its exact total count Ck. Our algorithms are for both Strict Turnstile data streams and the most general Non-strict Turnstile data streams, where each element may have a negative total count. Our method improves by an order of magnitude the known pro...
Pulse shape analyzers have been introduced in commercial liquid scintillation counters, such as the WaIlac 1220 QuantulusTM and 1219 SM, enabling separation of alpha particle spectra from other types of radiation in a single measurement and making ultra sensitive alpha counting possible. Background count rates as low as one count per day for 214Po in a teflon vial are achievable while still ret...
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