Young adolescents believe that oral sex is less risky to their health and emotions than vaginal sex, more prevalent among teens their age and more acceptable among their peers. They are also more likely to try oral sex, according to a UCSF study published in the April 2005 issue of Pediatrics.
"These findings suggest that adults should discuss more than one type of sexual practice when they counsel teens," said Bonnie Halpern-Felsher, PhD, associate professor of adolescent medicine at the University of California, San Francisco (UCSF). She conducted a survey of 580 ethnically diverse Northern California ninth-graders in the first study to investigate adolescents perceptions of the consequences of having oral sex as opposed to vaginal sex.
The survey showed that these young teens considered oral sex to be significantly less risky to their health than vaginal sex. The adolescents believed that oral sex also was less likely to have negative social and emotional consequences, such as a bad reputation, getting into trouble, feeling bad about themselves, feeling guilty, or having a relationship with a partner become worse.
Janet Basu | EurekAlert!
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Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
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In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
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In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
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