نتایج جستجو برای: sex preference
تعداد نتایج: 271586 فیلتر نتایج به سال:
Sex ratio is the number of men per 100 reproductive-age women within a specified mating pool. We generated and tested two hypotheses about the cross-cultural relationships between sex ratio and mate preferences using preference ratings of 18 characteristics provided by 9809 participants and corresponding sex ratio data secured from an international organization. The Classical Sex Ratio Mate Pre...
Despite distinct peer difficulties, less is known about the peer functioning of children with attention-deficit/hyperactivity disorder (ADHD) predominantly inattentive type (ADHD-I) in comparison to the peer functioning of children with ADHD combined type. Our purpose was to examine whether child sex moderated the relations between negative social preference and internalizing/externalizing prob...
Growing evidence suggests that sex differences in cocaine reward responses are regulated by endogenous gonadal hormones. However, few studies have addressed the role of testosterone on cocaine reward and psychomotor activation. This study aimed to determine whether testosterone influences the development of psychomotor and reward responses to cocaine. Castrated 8-week-old male Fisher rats recei...
Accumulating evidence suggests that males outperform females on mental rotation tasks as early as infancy. Sex differences in object preference have also been shown to emerge early in development and precede sex-typed play in childhood. Although research with adults and older children is suggestive of a relationship between play preferences and visuospatial abilities, including mental rotation,...
BACKGROUND AND AIM The sex of the physician performing the endoscopic procedure is one of the parameters influencing patient satisfaction. Our aim was to characterize patients' preferences according to their sex, socioeconomic status, and religious beliefs and according to procedure-related variables. METHODS All patients undergoing an endoscopic procedure at Sheba Hospital between April 2012...
In Korea, China, and Taiwan--countries where son preference persists--the availability of prenatal screening techniques and induced abortion has produced an imbalance in the naturally occurring sex ratios of 104-107 male births for every 100 female births. Policy responses to sex-selective abortion were the focus of a 1994 International Symposium on Sex Preference for Children in the Rapidly C...
BACKGROUND/AIMS Patients may feel embarrassed during colonoscopy. Our study aimed to assess changes in patient preference, over the past decade, for the sex of their colonoscopist. METHODS Prospective studies were performed at a single health center from July to September 2008, and from July to September 2016. Subjects included colonoscopy patients (2008: 354, 2016: 304) who were asked to com...
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