Standard IR systems can process queries such as “web NOT internet”, enabling users who are interested in arachnids to avoid documents about computing. The documents retrieved for such a query should be irrelevant to the negated query term. Most systems implement this by reprocessing results after retrieval to remove documents containing the unwanted string of letters. This paper describes and e...

CONTEXT Although there is a growing body of research examining the issue of nonconsensual sex among adolescents, few studies have looked at coerced sex within marriage in settings where early marriage is common, or at sex that may not be perceived as forced, but that is unwanted. METHODS A cross-sectional study, using both survey research and in-depth interviews, was conducted among 1,664 mar...

Unwanted pregnancy, and consequently unsafe abortion, remains major reproductive health problems in Nigeria that needs to be tackled. Unfortunately, there is a dearth of information on this problem at the community level. This study therefore examined the prevalence of unwanted pregnancy in the community as well as associated factors including the views, perceptions and attitudes of community m...

OBJECTIVES To determine the 3-month incidence of unwanted sex and to examine relationship factors and health-risk behaviors associated with incident unwanted sex. DESIGN Data collected from face-to-face interviews every 3 months in a longitudinal study with a minimum of 2 interviews and maximum of 10 across 27 months. SETTING Primary health care clinics for teens in an urban setting. PART...