An important issue of wireless sensor networks is object tracking, where the key steps include event detection, target classification, location estimation and location management. The main theme of this paper is location management. Because imprecision is an inherent property in object-tracking sensor networks, this paper focuses on the scenarios where users can tolerate a certain degree of imp...

STUDY OBJECTIVE Administrative databases from the City of Philadelphia that track public shelter utilisation (n=44 337) and AIDS case reporting (n=7749) were merged to identify rates and risk factors for co-occurring homelessness and AIDS. DESIGN Multiple decrement life tables analyses were conducted, and logistic regression analyses used to identify risk factors associated with AIDS among th...

CONTEXT Switching among contraceptive method types is the primary determinant of the prevalence of use of specific contraceptive methods, and it has direct implications for women's ability to avoid unintended pregnancies. Yet, method switching among U.S. women has received little attention from researchers. METHODS Data from the 1995 National Survey of Family Growth were used to construct mul...

to determine the gestational age of ultrasound devices, commonly used standard tables. the aim was to determine the gestational age of pregnant women admitted to hospitals in zahedan with hadlock and osaka table and gestational age derived from the tables to be adjusted to determine the gestational age of the actual use of tables for a more accurate determination of gestational age for the prop...

Understanding the variability of survival probabilities, both between and within cohorts, is important in order to understand life-cycle decisions under uncertainty. In this paper we analyze the subjective probabilities of survival to specific target ages provided by respondents to the Survey of Health, Ageing and Retirement in Europe (SHARE). To evaluate how these probabilities compare with ob...

OBJECTIVE To access the percentage of the patients whose repetitive nerve stimulation (RNS) studies were negative for 10% amplitude decrement but positive for 10% area decrement and to compare these disagreed results with specialist physician's diagnosis. STUDY DESIGN Retrospective descriptive study. SETTING Electrodiagnosis laboratory, Department of Rehabilitation Medicine, King Chulalongk...