The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform
Tamra C. Mendelson - One of the best experts on this subject based on the ideXlab platform.
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Sexual Behaviour rapid speciation in an arthropod
Nature, 2005Co-Authors: Tamra C. Mendelson, Kerry L. ShawAbstract:The likely force behind an explosion of new Hawaiian cricket species is revealed. Theory predicts that Sexual Behaviour in animals can evolve rapidly, accelerating the rate of species formation1,2. Here we estimate the rate of speciation in Laupala, a group of forest-dwelling Hawaiian crickets that is characterized primarily through differences in male courtship song3. We find that Laupala has the highest rate of speciation so far recorded in arthropods, supporting the idea that divergence in courtship or Sexual Behaviour drives rapid speciation in animals.
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Sexual Behaviour: rapid speciation in an arthropod.
Nature, 2005Co-Authors: Tamra C. Mendelson, Kerry L. ShawAbstract:Theory predicts that Sexual Behaviour in animals can evolve rapidly, accelerating the rate of species formation. Here we estimate the rate of speciation in Laupala, a group of forest-dwelling Hawaiian crickets that is characterized primarily through differences in male courtship song. We find that Laupala has the highest rate of speciation so far recorded in arthropods, supporting the idea that divergence in courtship or Sexual Behaviour drives rapid speciation in animals.
Kerry L. Shaw - One of the best experts on this subject based on the ideXlab platform.
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Sexual Behaviour rapid speciation in an arthropod
Nature, 2005Co-Authors: Tamra C. Mendelson, Kerry L. ShawAbstract:The likely force behind an explosion of new Hawaiian cricket species is revealed. Theory predicts that Sexual Behaviour in animals can evolve rapidly, accelerating the rate of species formation1,2. Here we estimate the rate of speciation in Laupala, a group of forest-dwelling Hawaiian crickets that is characterized primarily through differences in male courtship song3. We find that Laupala has the highest rate of speciation so far recorded in arthropods, supporting the idea that divergence in courtship or Sexual Behaviour drives rapid speciation in animals.
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Sexual Behaviour: rapid speciation in an arthropod.
Nature, 2005Co-Authors: Tamra C. Mendelson, Kerry L. ShawAbstract:Theory predicts that Sexual Behaviour in animals can evolve rapidly, accelerating the rate of species formation. Here we estimate the rate of speciation in Laupala, a group of forest-dwelling Hawaiian crickets that is characterized primarily through differences in male courtship song. We find that Laupala has the highest rate of speciation so far recorded in arthropods, supporting the idea that divergence in courtship or Sexual Behaviour drives rapid speciation in animals.
Marion Henderson - One of the best experts on this subject based on the ideXlab platform.
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parental influences on young people s Sexual Behaviour a longitudinal analysis
Journal of Adolescence, 2006Co-Authors: Daniel Wight, Lisa M Williamson, Marion HendersonAbstract:Abstract Both family structure and processes have been associated with young people's Sexual Behaviour, but most studies are cross-sectional and focus on only one outcome: age at first intercourse. This paper uses longitudinal data from a survey of Scottish teenagers ( N = 5041 ) to show how low parental monitoring predicts early Sexual activity for both sexes (with some reverse causation), and for females it also predicts more Sexual partners and less condom use. A lot of spending money also predicts early Sexual activity and, for males, having more Sexual partners. Comfort talking with parents about sex, however, seems to bear little relationship to Sexual Behaviour.
T G M Sandfort - One of the best experts on this subject based on the ideXlab platform.
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hiv positive people risk and Sexual Behaviour
Social Science & Medicine, 2000Co-Authors: M A Schiltz, T G M SandfortAbstract:For a long time, the Sexual Behaviour of HIV-infected persons did not receive any serious attention for a variety of reasons. Initially, diagnosis of HIV-infection appeared to imply a death sentence. In this context, the sex life of those infected seemed a secondary issue making prevention focused on Sexual Behaviour hard to imagine. Furthermore, the conviction that stigmatisation should be avoided also precluded an interest in the Sexual Behaviour of HIV-infected persons. From an epidemiological perspective and in the context of the developments in the medical treatment of AIDS it is important to address the Sexuality of HIV-infected people. The scarce research done until now shows that there are various ways in which an HIV-infection affects people's Sexuality. It seems that the Sexuality of HIV-infected people can be compromised by their infection, inducing various Sexual problems. Research also shows that there are HIV-infected people who do engage in unprotected sex, just as there are HIV-negative people or people with unknown serostatus who do so. Studies into the determinants of unsafe sex in HIV-infected people suggest that to some extent the same determinants are operative as among people in general. These include intention and self-efficacy regarding safe sex. Recreational drug use also affects safe sex regardless of serostatus. However, safe sex as well as sex in general is different for seropositive persons than for people who are seronegative or have an unknown serostatus. Among seropositive people, sex is also related to dilemma's involving disclosing their serostatus to potential sex partners, and their motivation to protect their partners as well as themselves against surinfection and STD. Furthermore, having to cope with a serious disease induces negative mood states (particularly depression) and may compromise Sexual functioning. Comprehensive prevention aimed at HIV infected persons should address these various issues and should be an integrated part of general HIV-prevention.
Irshaad Osman Ebrahim - One of the best experts on this subject based on the ideXlab platform.
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Somnambulistic Sexual Behaviour (sexsomnia).
Journal of Clinical Forensic Medicine, 2006Co-Authors: Irshaad Osman EbrahimAbstract:Somnambulism or sleepwalking is a viable defence on the basis of automatism. The Behaviours that occur during sleepwalking can be highly complex and include Sexual Behaviour of all types. Somnambulistic Sexual Behaviour (also called sexsomnia, sleep sex) is considered a variant of sleepwalking disorder as the overwhelming majority of people with Sexsomnia have a history of parasomnia and a family history of sleepwalking. Sexual Behaviour during a sleep automatism can vary from explicit Sexual vocalisations, to violent masturbation, to complex Sexual acts including anal, oral and vaginal penetration. A recent case in England is reported where the defendant was acquitted on 3 charges of rape on the basis of automatism due to somnambulistic Sexual Behaviour.
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Case report Somnambulistic Sexual Behaviour (sexsomnia) q
2006Co-Authors: Irshaad Osman EbrahimAbstract:Somnambulism or sleepwalking is a viable defence on the basis of automatism. The Behaviours that occur during sleepwalking can be highly complex and include Sexual Behaviour of all types. Somnambulistic Sexual Behaviour (also called sexsomnia, sleep sex) is considered a variant of sleepwalking disorder as the overwhelming majority of people with Sexsomnia have a history of parasomnia and a family history of sleepwalking. Sexual Behaviour during a sleep automatism can vary from explicit Sexual vocalisations, to violent masturbation, to complex Sexual acts including anal, oral and vaginal penetration. A recent case in England is reported where the defendant was acquitted on 3 charges of rape on the basis of automatism due to somnambulistic Sexual Behaviour. 2006 Elsevier Ltd and AFP. All rights reserved.
