نتایج جستجو برای: information centers
تعداد نتایج: 1249982 فیلتر نتایج به سال:
A mathematical definit on of an information network is constructed with the purpose of developing a theory useful in answering practical questions concerning information transfer. An information network inCludes: (1) use,-s, (2) inf rmation resources, (3) information centers, and (4) the total information transfer structure linking (1), (2), and (3). Emphasis is placed on the message transfer s...
In 2008, a clinical information tool was developed and embedded in the electronic health record system of an academic medical center. In 2009, the initial information tool, Clinical-e, was superseded by a portal called Clinical Focus, with a single search box enabling a federated search of selected online information resources. To measure the usefulness and impact of Clinical Focus, a survey wa...
OBJECTIVES The number of illicit drug users is prone to underestimation. This study aimed to use the capture-recapture method as a statistical procedure for measuring the prevalence of intravenous drug users (IDUs) by estimating the number of unknown IDUs not registered by any of the registry centers. METHODS This study was conducted in Hamadan City, the west of Iran, in 2012. Three incomplet...
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