نتایج جستجو برای: oral sex
تعداد نتایج: 453409 فیلتر نتایج به سال:
BACKGROUND Understanding the full range of sexual behaviors of young people is crucial in developing appropriate interventions to prevent and control sexually transmitted infections including HIV. However, such information is meager in developing countries. The objective of this study was to describe oral and anal sex practices and identify associated factors among high school youth. METHODS ...
BACKGROUND We aimed to study the prevalence of oral sex and its possible association with human papillomavirus (HPV) 16 infection in the development of oropharyngeal cancer in the US population for possible prevention. METHODS We conduct a systemic review on the prevalence of oral sex among Americans among different age groups, the prevalence of HPV 16 infection reported in oropharyngeal canc...
BACKGROUND The characteristics of heterosexual attendees who visit sexually transmitted disease (STD) clinics and practice oral sex have not been revealed in China. This information is important for the development of targeted STD prevention programmes for this population. STUDY DESIGN A self-administered questionnaire survey with a cross-sectional design was administered to consecutive atten...
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
Young people in many countries report gender differences in giving and receiving oral sex, yet examination of young people's own perspectives on gender dynamics in oral heterosex are relatively rare. We explored the constructs and discourses 16- to 18-year-old men and women in England used in their accounts of oral sex during in-depth interviews. Two contrasting constructs were in circulation i...
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