Multi-view geometry theory is applied to atmospheric nuclear tests filmed in the 1950s and 1960s, to estimate the three-dimensional locations of fixed structures and radiological material during the detonation. Results show that using bundle adjustment, points can be estimated with an average uncertainty of 0.68 meters with 0.36, 0.28, and 0.37 meters of uncertainty in x-, y-, and z-directions ...

This study investigated the relation of friendship and emotional adjustment in adolescents. Both quantitative (popularity, mutual friendships, and number of friends) and qualitative dimensions (perceived positive friendship quality and conflict) of friendship were used. Participants were 618, mostly European American, 8th-, 10th-, and 12th-graders. Structural equation modeling showed that posit...

conclusions the research revealed that nonsmokers showed better mental health and dyadic adjustment than smokers, thus suggesting that smoking endangers and can impair the tranquility of families and that smoking also threatens the dyadic adjustment of couples. background the mental health and dyadic adjustment of smokers is a matter of serious concern which brings many demerits on mental healt...

This paper analyzes the interaction of direct and indirect risk selection in health insurance markets. It is shown that direct risk selection - using measures unrelated to the benefit package like selective advertising or 'losing' applications of high risk individuals - nevertheless has an influence on the distortions of the benefit package caused by indirect risk selection. Direct risk selecti...

The purpose of this article was to propose and test an integrative model on the role of perfectionism, academic motivation, and psychological adjustment difficulties in undergraduate students. The model posits that self-oriented perfectionism facilitates self-determined academic motivation, whereas socially prescribed perfectionism enhances non-self-determined academic motivation. In turn, self...

This research examined parents' involvement in children's learning in the United States and China. Beginning in seventh grade, 825 American and Chinese children (mean age=12.74 years) reported on their parents' involvement in their learning as well as their parents' psychological control and autonomy support every 6 months until the end of 8th grade. Information on children's academic and emoti...