This article has no abstract

Lactating female chacma baboons, Papio cynocephalus ursinus, maintain close associations, or ‘friendships’, with particular males that may protect infants from sexually selected infanticide by a newly immigrated alpha male. In a 2-year study, we sought evidence of female–female competition for male friends in cases where two mothers maintained friendships with the same male simultaneously. In t...

College-bound students in Japan undergo a process of intense preparation known as examination hell. An extreme manifestation of examination hell is the ronin phenomenon. Typically thirty percent of students choose the ronin option under which they spend years in addition to high school preparing for the next year’s college entrance examinations. Using the mean scores of the entrance examination...

We investigated the factors influencing relationship control in the dating relationships of college students. The data were collected from 184 college students at 4 four-year universities and 2 twoto three-year colleges located in D city from July to October 2015. Stepwise multiple regression analysis was performed to determine factors influencing participants’ relationship control. We found th...

The intensity and effort of bodybuilding training suggest an overinvestment in body shape and physical appearance, which has been suggested to be a risk factor for developing eating disorders. The purpose of this study was to investigate the prevalence of eating disorder tendencies among a sample of collegiate male bodybuilders (BB, n = 68) and controls (C, n = 50) (nonbodybuilders), using the ...

background: multiple sclerosis (ms) is the most common disabling neurological disease. hand dysfunction is one of the main complaints of patients with ms. the present study aimed to compare hand dexterity of ms patients with low expanded disability status scale (edss) scores and healthy adults. it also sought to identify the predictors of disability status of patients with ms based on their man...

In this study we examine how native language, sex, and college major interact to influence accuracy and preferred strategy when performing mental rotation (MR). Native monolingual Chinese and English speakers rotated 3-D shapes while maintaining a concurrent verbal or spatial memory load. For English speakers, male physical science majors were more accurate than social science majors and employ...