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The purpose of this study was to examine the relationship between religiousness and alcohol use of adolescents. A sample of high school seniors was drawn based on the second follow-up National Educational Longitudinal Study of 1988 (NELS:88). Multiple regression was employed using a hierarchical strategy to determine the impact of religiousness on alcohol(More)
Reliable knowledge of the ego position for vehicles is a crucial requirement for many automotive applications. In order to solve this problem for satellite-based localization in dense urban areas, multipath situations need to be handled carefully. This paper proposes a lightweight multipath detection algorithm which is based on dynamically built 3D(More)
Vehicle tracking under clutter is an important prerequisite for numerous vehicular applications. In this paper, we propose a generalization of the existing integrated probabilistic data association method in order to model situations where several true and additional clutter observations originated from one object. We will show that the proposed method(More)
Vehicle localization using satellite navigation systems like GPS is a convenient and achievable solution. In order to solve this problem in dense urban areas, erroneous measurements caused by non-line-of-sight situations need to be handled carefully. The purpose of this paper is to evaluate shadow maps—an efficient representation of satellite reception(More)
A total of 1,267 women in the F.R.G., aged from 15 to 45 years, were interviewed about their family planning behavior and the importance of natural methods of family planning (NFP) in a representative demographic study. It was found that 19.6% of the respondents were not sexually active. The others used various methods, as follows: pill, 38.4%; IUD, 10.3%;(More)