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Sample records for sexually explicit material

  1. Japanese College Students' Exposure to Sexually Explicit Internet Material (SEIM) and Sexual Attitudes

    E-print Network

    Taguchi, Kikuko

    2009-05-04

    -rated movies on cable, sexually explicit movies on special cable channels, pornographic magazines, pornographic books, and pornographic comics). On the other hand, Traeen, Nilsen, and Stigum (2006) included only two forms of material under traditional 4... socialization channels such as parents and schools (Aubrey, Harrison, Kramer, & Yellin, 2003; Brown & L?Engle, 2009; Lo & Wei, 2005; Peter & Valkenburg, 2006b). However, most of the studies have focused on pathological outcomes, for example, Internet addiction...

  2. Attitudinal effects of degrading themes and sexual explicitness in video materials.

    PubMed

    Golde, J A; Strassberg, D S; Turner, C M; Lowe, K

    2000-07-01

    This study examined the independent and interactive effects of sexual explicitness and degrading themes toward women on mens' attitudes following exposure to video presentations of male-female interactions. Subjects were 83 male college students who viewed video vignettes under one of four stimulus conditions: (a) sexually explicit/degrading, (b) sexually explicit/nondegrading, (c) nonexplicit/degrading, and (d) nonexplicit/nondegrading. Results revealed that men exposed to degrading material, regardless of explicitness, were significantly more likely to express attitudes supportive of rape, while explicitness had no significant main or interactive effect on these attitudes. Further, the interaction of explicitness with degradation was found to impact scores on a measure of sexual callousness. Theoretical and clinical implications of these findings are discussed. PMID:10904993

  3. The Role of Sexually Explicit Material (SEM) in the Sexual Development of Black Young Same-Sex-Attracted Men

    PubMed Central

    Morgan, Anthony; Ogunbajo, Adedotun; Trent, Maria; Harper, Gary W.; Fortenberry, J. Dennis

    2015-01-01

    Sexually explicit material (SEM) (including Internet, video, and print) may play a key role in the lives of Black same-sex sexually active youth by providing the only information to learn about sexual development. There is limited school-and/or family-based sex education to serve as models for sexual behaviors for Black youth. We describe the role SEM plays in the sexual development of a sample of Black same-sex attracted (SSA) young adolescent men ages 15–19. Adolescents recruited from clinics, social networking sites, and through snowball sampling were invited to participate in a 90-min, semi-structured qualitative interview. Most participants described using SEM prior to their first same-sex sexual experience. Participants described using SEM primarily for sexual development, including learning about sexual organs and function, the mechanics of same-gender sex, and to negotiate one’s sexual identity. Secondary functions were to determine readiness for sex; to learn about sexual performance, including understanding sexual roles and responsibilities (e.g., “top” or “bottom”); to introduce sexual performance scripts; and to develop models for how sex should feel (e.g., pleasure and pain). Youth also described engaging in sexual behaviors (including condom non-use and/or swallowing ejaculate) that were modeled on SEM. Comprehensive sexuality education programs should be designed to address the unmet needs of young, Black SSA young men, with explicit focus on sexual roles and behaviors that may be inaccurately portrayed and/or involve sexual risk-taking (such as unprotected anal intercourse and swallowing ejaculate) in SEM. This work also calls for development of Internet-based HIV/STI prevention strategies targeting young Black SSA men who maybe accessing SEM. PMID:25677334

  4. The role of sexually explicit material in the sexual development of same-sex-attracted Black adolescent males.

    PubMed

    Arrington-Sanders, Renata; Harper, Gary W; Morgan, Anthony; Ogunbajo, Adedotun; Trent, Maria; Fortenberry, J Dennis

    2015-04-01

    Sexually explicit material (SEM) (including Internet, video, and print) may play a key role in the lives of Black same-sex sexually active youth by providing the only information to learn about sexual development. There is limited school- and/or family-based sex education to serve as models for sexual behaviors for Black youth. We describe the role SEM plays in the sexual development of a sample of Black same-sex attracted (SSA) young adolescent males ages 15-19. Adolescents recruited from clinics, social networking sites, and through snowball sampling were invited to participate in a 90-min, semi-structured qualitative interview. Most participants described using SEM prior to their first same-sex sexual experience. Participants described using SEM primarily for sexual development, including learning about sexual organs and function, the mechanics of same-gender sex, and to negotiate one's sexual identity. Secondary functions were to determine readiness for sex; to learn about sexual performance, including understanding sexual roles and responsibilities (e.g., "top" or "bottom"); to introduce sexual performance scripts; and to develop models for how sex should feel (e.g., pleasure and pain). Youth also described engaging in sexual behaviors (including condom non-use and/or swallowing ejaculate) that were modeled on SEM. Comprehensive sexuality education programs should be designed to address the unmet needs of young, Black SSA men, with explicit focus on sexual roles and behaviors that may be inaccurately portrayed and/or involve sexual risk-taking (such as unprotected anal intercourse and swallowing ejaculate) in SEM. This work also calls for development of Internet-based HIV/STI prevention strategies targeting young Black SSA men who may be accessing SEM. PMID:25677334

  5. Using Sexually Explicit Material in a Therapeutic Context

    ERIC Educational Resources Information Center

    Darnell, Cyndi

    2015-01-01

    For most of us, sex is a subjective, lived experience that is as unique as our genetic make-up, our upbringing, our thoughts, values, feelings, beliefs and ideas. It is through our erotic interactions, or the absence thereof, that we form aspects of our fluid and mutable erotic paths and identities. Despite the proliferation of sexual imagery…

  6. Adolescents' use of sexually explicit Internet material and their sexual attitudes and behavior: Parallel development and directional effects.

    PubMed

    Doornwaard, Suzan M; Bickham, David S; Rich, Michael; ter Bogt, Tom F M; van den Eijnden, Regina J J M

    2015-10-01

    Although research has repeatedly demonstrated that adolescents' use of sexually explicit Internet material (SEIM) is related to their endorsement of permissive sexual attitudes and their experience with sexual behavior, it is not clear how linkages between these constructs unfold over time. This study combined 2 types of longitudinal modeling, mean-level development and cross-lagged panel modeling, to examine (a) developmental patterns in adolescents' SEIM use, permissive sexual attitudes, and experience with sexual behavior, as well as whether these developments are related; and (b) longitudinal directionality of associations between SEIM use on the 1 hand and permissive sexual attitudes and sexual behavior on the other hand. We used 4-wave longitudinal data from 1,132 7th through 10th grade Dutch adolescents (M(age) T1 = 13.95; 52.7% boys) and estimated multigroup models to test for moderation by gender. Mean-level developmental trajectories showed that boys occasionally and increasingly used SEIM over the 18-month study period, which co-occurred with increases in their permissive attitudes and their experience with sexual behavior. Cross-lagged panel models revealed unidirectional effects from boys' SEIM use on their subsequent endorsement of permissive attitudes, but no consistent directional effects between their SEIM use and sexual behavior. Girls showed a similar pattern of increases in experience with sexual behavior, but their SEIM use was consistently low and their endorsement of permissive sexual attitudes decreased over the 18-month study period. In contrast to boys, girls' SEIM use was not longitudinally related to their sexual attitudes and behavior. Theoretical and practical implications of these gender-specific findings are discussed. (PsycINFO Database Record PMID:26376287

  7. Viewing Sexually-Explicit Materials Alone or Together: Associations with Relationship Quality

    PubMed Central

    Maddox, Amanda M.; Rhoades, Galena K.; Markman, Howard J.

    2010-01-01

    This study investigated associations between viewing sexually-explicit material (SEM) and relationship functioning in a random sample of 1291 unmarried individuals in romantic relationships. More men (76.8%) than women (31.6%) reported that they viewed SEM on their own, but nearly half of both men and women reported sometimes viewing SEM with their partner (44.8%). Measures of communication, relationship adjustment, commitment, sexual satisfaction, and infidelity were examined. Individuals who never viewed SEM reported higher relationship quality on all indices than those who viewed SEM alone. Those who viewed SEM only with their partners reported more dedication and higher sexual satisfaction than those who viewed SEM alone. The only difference between those who never viewed SEM and those who viewed it only with their partners was that those who never viewed it had lower rates of infidelity. Implications for future research in this area as well as for sex therapy and couple therapy are discussed. PMID:20039112

  8. Lower Psychological Well-Being and Excessive Sexual Interest Predict Symptoms of Compulsive Use of Sexually Explicit Internet Material Among Adolescent Boys.

    PubMed

    Doornwaard, Suzan M; van den Eijnden, Regina J J M; Baams, Laura; Vanwesenbeeck, Ine; Ter Bogt, Tom F M

    2016-01-01

    Although a growing body of literature addresses the effects of young people's use of sexually explicit Internet material, research on the compulsive use of this type of online content among adolescents and its associated factors is largely lacking. This study investigated whether factors from three distinct psychosocial domains (i.e., psychological well-being, sexual interests/behaviors, and impulsive-psychopathic personality) predicted symptoms of compulsive use of sexually explicit Internet material among adolescent boys. Links between psychosocial factors and boys' compulsive use symptoms were analyzed both cross-sectionally and longitudinally with compulsive use symptoms measured 6 months later (T2). Data were used from 331 Dutch boys (M age = 15.16 years, range 11-17) who indicated that they used sexually explicit Internet material. The results from negative binomial regression analyses indicated that lower levels of global self-esteem and higher levels of excessive sexual interest concurrently predicted boys' symptoms of compulsive use of sexually explicit Internet material. Longitudinally, higher levels of depressive feelings and, again, excessive sexual interest predicted relative increases in compulsive use symptoms 6 months later. Impulsive and psychopathic personality traits were not uniquely related to boys' symptoms of compulsive use of sexually explicit Internet material. Our findings, while preliminary, suggest that both psychological well-being factors and sexual interests/behaviors are involved in the development of compulsive use of sexually explicit Internet material among adolescent boys. Such knowledge is important for prevention and intervention efforts that target the needs of specific problematic users of sexually explicit Internet material. PMID:26208829

  9. Women's critical responses to sexually explicit material: the role of hyperfemininity and processing style.

    PubMed

    van Oosten, Johanna M F; Peter, Jochen; Boot, Inge

    2015-01-01

    Previous research on women's responses to male-targeted sexually explicit material (SEM) suggests that women may be critical toward such content. However, women's critical responses to SEM have not been explained empirically. The present study had two goals: (1) to investigate whether women's critical responses to male-targeted SEM depend on individual differences in gender role orientation (i.e., hyperfemininity) and (2) to explain the effect of hyperfemininity on critical responses to SEM by looking at the way sexual material is processed. In an online experiment among women aged 18 to 30 (N = 195), both the type of SEM (a male- versus female-targeted erotic story) and processing style (stimulus- versus response-focused) were manipulated. In addition, participants were divided into three groups based on low, moderate, or high hyperfemininity. When using stimulus-focused processing (i.e., attending to the characters and situational context of the story), women were more critical toward male-targeted SEM (relative to female-targeted material), but only when they had low and moderate degrees of hyperfemininity. PMID:24511896

  10. The Use of Sexually Explicit Material in Clinical, Educational and Research Settings in the United Kingdom and Its Relation to the Development of Psychosexual Therapy and Sex Education

    ERIC Educational Resources Information Center

    Brewster, Marnie; Wylie, Kevan R.

    2008-01-01

    The present review describes the development and use of sexually explicit material in sex education within UK psychosexual therapy clinics, medical schools and also in state-maintained secondary schools with reference to interests that have shaped the provision of sex education since the early twentieth century. A short summary of published books…

  11. Sexually Explicit Cell Phone Messaging Associated With Sexual Risk Among Adolescents

    PubMed Central

    Rhoades, Harmony; Winetrobe, Hailey; Sanchez, Monica; Montoya, Jorge; Plant, Aaron; Kordic, Timothy

    2012-01-01

    OBJECTIVES: Sexting (sending/receiving sexually explicit texts and images via cell phone) may be associated with sexual health consequences among adolescents. However, to date, no published data from a probability-based sample has examined associations between sexting and sexual activity. METHODS: A probability sample of 1839 students was collected alongside the 2011 Youth Risk Behavior Survey in Los Angeles high schools. Logistic regressions were used to assess the correlates of sexting behavior and associations between sexting and sexual risk-taking. RESULTS: Fifteen percent of adolescents with cell phone access reported sexting, and 54% reported knowing someone who had sent a sext. Adolescents whose peers sexted were more likely to sext themselves (odds ratio [OR] = 16.87, 95% confidence interval [CI]: 9.62–29.59). Adolescents who themselves sexted were more likely to report being sexually active (OR = 7.17, 95% CI: 5.01–10.25). Nonheterosexual students were more likely to report sexting (OR = 2.74, 95% CI: 1.86–4.04), sexual activity (OR = 1.52, 95% CI: 1.07–2.15), and unprotected sex at last sexual encounter (OR = 1.84, 95% CI: 1.17–2.89). CONCLUSIONS: Sexting, rather than functioning as an alternative to “real world” sexual risk behavior, appears to be part of a cluster of risky sexual behaviors among adolescents. We recommend that clinicians discuss sexting as an adolescent-friendly way of engaging patients in conversations about sexual activity, prevention of sexually transmitted infections, and unwanted pregnancy. We further recommend that discussion about sexting and its associated risk behavior be included in school-based sexual health curricula. PMID:22987882

  12. Enhanced Attentional Bias towards Sexually Explicit Cues in Individuals with and without Compulsive Sexual Behaviours

    PubMed Central

    Mechelmans, Daisy J.; Irvine, Michael; Banca, Paula; Porter, Laura; Mitchell, Simon; Mole, Tom B.; Lapa, Tatyana R.; Harrison, Neil A.; Potenza, Marc N.; Voon, Valerie

    2014-01-01

    Compulsive sexual behaviour (CSB) is relatively common and has been associated with significant distress and psychosocial impairments. CSB has been conceptualized as either an impulse control disorder or a non-substance ‘behavioural’ addiction. Substance use disorders are commonly associated with attentional biases to drug cues which are believed to reflect processes of incentive salience. Here we assess male CSB subjects compared to age-matched male healthy controls using a dot probe task to assess attentional bias to sexually explicit cues. We show that compared to healthy volunteers, CSB subjects have enhanced attentional bias to explicit cues but not neutral cues particularly for early stimuli latency. Our findings suggest enhanced attentional bias to explicit cues possibly related to an early orienting attentional response. This finding dovetails with our recent observation that sexually explicit videos were associated with greater activity in a neural network similar to that observed in drug-cue-reactivity studies. Greater desire or wanting rather than liking was further associated with activity in this neural network. These studies together provide support for an incentive motivation theory of addiction underlying the aberrant response towards sexual cues in CSB. PMID:25153083

  13. Revisualising 'porn': how young adults' consumption of sexually explicit Internet movies can inform approaches to Canadian sexual health promotion.

    PubMed

    Hare, Kathleen A; Gahagan, Jacqueline; Jackson, Lois; Steenbeek, Audrey

    2015-01-01

    The Internet offers an invaluable opportunity to re-imagine ideas, constructs and disciplines to create innovative sexual health promotion interventions. To gain insight into what young adults (aged 19-28) may be seeking in online sexual resources and approaches, this study explored how young people perceived their sexual health to be influenced by their consumption of the highly utilised sexual medium of Sexually Explicit Internet Movies [SEIM]. Employing an exploratory, qualitative methodology, data were collected through semi-structured interviews with 12 urban, heterosexual young adults, who self-identified as having consumed SEIM for a period of at least one year. All interviews were audiotaped with permission, transcribed verbatim and the data were analysed to identify emergent thematic concepts. Participants described utilising SEIM as an all-inclusive sexual forum to learn more about the positive aspects of sexual health, in a context that they viewed as being devoid of alternatives. Young adults' perceptions of the utility of SEIM suggest that it would be beneficial to create novel, sex-positive online sexual health interventions. Further exploration is clearly warranted on how Internet resources that are related to sexual health, such as SEIM, can be utilised to facilitate innovative approaches to online sexual health promotion. PMID:24917353

  14. Acceptability of Sexually Explicit Images in HIV Prevention Messages Targeting Men Who Have Sex With Men.

    PubMed

    Iantaffi, Alex; Wilkerson, J Michael; Grey, Jeremy A; Rosser, B R Simon

    2015-01-01

    Sexually explicit media (SEM) have been used in HIV-prevention advertisements to engage men who have sex with men (MSM) and to communicate content. These advertisements exist within larger discourses, including a dominant heteronormative culture and a growing homonormative culture. Cognizant of these hegemonic cultures, this analysis examined the acceptable level of sexual explicitness in prevention advertisements. Seventy-nine MSM participated in 13 online focus groups, which were part of a larger study of SEM. Three macro themes-audience, location, and community representation-emerged from the analysis, as did the influence of homonormativity on the acceptability of SEM in HIV-prevention messages. PMID:26075485

  15. Perceived Effects of Sexually Explicit Media among Men who have Sex with Men and Psychometric Properties of the Pornography Consumption Effects Scale (PCES)

    PubMed Central

    Hald, Gert Martin; Smolenski, Derek; Simon Rosser, B. R.

    2012-01-01

    Introduction Researchers have proposed that consumption of Sexually Explicit Media (SEM) may not only adversely influence sexual attitudes and behaviors of Men Who Have Sex with Men (MSM) but (also) play a positive role in the development and sexual education of MSM, be a major source of sexual information for MSM, and provide validation, understanding, and confirmation of MSM’s sexual orientation. However, such claims are in urgent need of empirical validation as is the development of psychometrically sound and easily implemented instruments able to reliably assist such validations. Aim To investigate how MSM who consume SEM self-perceive the impact of SEM on their STI-related sexual risk behaviors (i.e. anal intercourse), sexual knowledge, enjoyment of sex, interest in sex, attitudes toward sex, and understanding of their sexual orientation. Further, to provide a thorough psychometric validation of a reduced and reworked version of the Pornography Consumption Effect Scale. Main Outcomes Measures A revised version of the Pornography Consumption Effect Scale (PCES) by Hald and Malamuth (2008). Results This study found that 97% of MSM reported positive effects of SEM consumption on their sexual knowledge, enjoyment of and interest in sex, attitudes toward sex, and understanding of their sexual orientation. Only 3 % reported any negative effects of their SEM consumption. SEM consumption was found to significantly increase consumers’ interest in having protected anal intercourse while not significantly influencing their interests in having unprotected anal intercourse. The revised version of the PCES showed excellent psychometric performance. Conclusion The study found that MSM generally report positive effects of their consumption of sexually explicit materials in areas related to their sexual knowledge, attitudes, behaviors, and orientation. This finding could have important implications for the sexual health and well-being of MSM by suggesting that SEM-based education and intervention might hold considerable overall health potential for MSM. PMID:23110358

  16. Enhanced Attentional Bias towards Sexually Explicit Cues in Individuals with and without Compulsive Sexual Behaviours

    E-print Network

    Mechelmans, Daisy J.; Irvine, Michael; Banca, Paula; Porter, Laura; Mitchell, Simon; Mole, Tom B.; Lapa, Tatyana R.; Harrison, Neil A.; Potenza, Marc N.; Voon, Valerie

    2014-08-25

    Compulsive sexual behaviour (CSB) is relatively common and has been associated with significant distress and psychosocial impairments. CSB has been conceptualized as either an impulse control disorder or a non-substance ‘behavioural’ addiction...

  17. Sexually Explicit Online Media and Sexual Risk among Men Who Have Sex with Men in the United States

    PubMed Central

    Nelson, Kimberly M.; Simoni, Jane M.; Morrison, Diane M.; George, William H.; Leickly, Emily; Lengua, Liliana J.; Hawes, Stephen E.

    2014-01-01

    This study aimed to describe sexually explicit online media (SEOM) consumption among men who have sex with men (MSM) in the United States and examine associations between exposure to unprotected anal intercourse (UAI) in SEOM and engagement in both UAI and serodiscordant UAI. MSM in the U.S. who accessed a men-seeking-men website in the past year (N = 1,170) were recruited online for a cross-sectional, Internet-based survey of sexual risk and SEOM consumption. In the three months prior to interview, more than half (57%) of the men reported viewing SEOM one or more times per day and almost half (45%) reported that at least half of the SEOM they viewed portrayed UA. Compared to participants who reported that 0–24% of the SEOM they viewed showed UAI, participants who reported that 25–49%, 50–74%, or 75–100% of the SEOM they viewed portrayed UAI had progressively increasing odds of engaging in UAI and serodiscordant UAI in the past three months. As SEOM has become more ubiquitous and accessible, research should examine causal relations between SEOM consumption and sexual risk-taking among MSM as well as ways to use SEOM for HIV prevention. PMID:24464547

  18. Typologies of sexually explicit media use among MSM: An application of latent class analysis

    PubMed Central

    Erickson, Darin J.; Galos, Dylan L; Smolenski, Derek, J.; Iantaffi, Alex; Rosser, B.R. Simon

    2014-01-01

    The viewing of sexually explicit media (SEM) is widespread, especially among men, and research linking SEM viewing and sexual behavior has shown a variety of results, some positive (e.g., sexuality education) and some negative (e.g., poorer body image). These results might be due to limitations in measuring SEM consumption, particularly around typology. The goal of the current study was to examine potential patterns of SEM viewing activities. Using data from an online survey of men who have sex with men (MSM), we conducted latent class analyses of 15 SEM activities. Results suggested a three-class solution. The most prevalent class included over 60% of men and was characterized by viewing primarily safer-sex or conventional behaviors. The second class included 32% of men and had a similar albeit amplified pattern of viewing. The final class included just 7% of men and was marked by high levels of viewing of all activities, including fetish and kink. Compared to the conventional or safer-sex class, the other classes had lower internalized homonegativity, lower condom use self-efficacy, and higher SEM consumption or dose. Implications for HIV prevention, sexuality research and the SEM industry are discussed. PMID:25642301

  19. Explicit Pore Pressure Material Model in Carbon-Cloth Phenolic

    NASA Technical Reports Server (NTRS)

    Gutierrez-Lemini, Danton; Ehle, Curt

    2003-01-01

    An explicit material model that uses predicted pressure in the pores of a carbon-cloth phenolic (CCP) composite has been developed. This model is intended to be used within a finite-element model to predict phenomena specific to CCP components of solid-fuel-rocket nozzles subjected to high operating temperatures and to mechanical stresses that can be great enough to cause structural failures. Phenomena that can be predicted with the help of this model include failures of specimens in restrained-thermal-growth (RTG) tests, pocketing erosion, and ply lifting

  20. Sexually Explicit Media on the Internet: A Content Analysis of Sexual Behaviors, Risk, and Media Characteristics in Gay Male Adult Videos

    PubMed Central

    Downing, Martin J.; Schrimshaw, Eric W.; Antebi, Nadav; Siegel, Karolynn

    2013-01-01

    Recent research suggests that viewing sexually explicit media (SEM), i.e., adult videos, may influence sexual risk taking among men who have sex with men (MSM). Despite this evidence, very little is known about the content of gay male SEM on the Internet, including the prevalence of sexual risk behaviors and their relation to video- and performer-characteristics, viewing frequency, and favorability. The current study content analyzed 302 sexually explicit videos featuring male same-sex performers that were posted to five highly trafficked adult-oriented websites. Findings revealed that gay male SEM on the Internet features a variety of conventional and nonconventional sexual behaviors. There was a substantial prevalence of unprotected anal intercourse (UAI) (34%) and was virtually the same as the prevalence of anal sex with a condom (36%). The presence of UAI was not associated with video length, amateur production, number of video views, favorability, or website source. However, the presence of other potentially high-risk behaviors (e.g., ejaculation in the mouth, and ejaculation on/in/rubbed into the anus) was associated with longer videos, more views, and group sex videos (three or more performers). The findings of high levels of sexual risk behavior and the fact that there was virtually no difference in the prevalence of anal sex with and without a condom in gay male SEM have important implications for HIV prevention efforts, future research on the role of SEM on sexual risk taking, and public health policy. PMID:23733156

  1. Sexually explicit media on the internet: a content analysis of sexual behaviors, risk, and media characteristics in gay male adult videos.

    PubMed

    Downing, Martin J; Schrimshaw, Eric W; Antebi, Nadav; Siegel, Karolynn

    2014-05-01

    Recent research suggests that viewing sexually explicit media (SEM), i.e., adult videos, may influence sexual risk taking among men who have sex with men. Despite this evidence, very little is known about the content of gay male SEM on the Internet, including the prevalence of sexual risk behaviors and their relation to video- and performer-characteristics, viewing frequency, and favorability. The current study content analyzed 302 sexually explicit videos featuring male same-sex performers that were posted to five highly trafficked adult-oriented websites. Findings revealed that gay male SEM on the Internet features a variety of conventional and nonconventional sexual behaviors. There was a substantial prevalence of unprotected anal intercourse (UAI) (34 %) and was virtually the same as the prevalence of anal sex with a condom (36 %). The presence of UAI was not associated with video length, amateur production, number of video views, favorability, or website source. However, the presence of other potentially high-risk behaviors (e.g., ejaculation in the mouth, and ejaculation on/in/rubbed into the anus) was associated with longer videos, more views, and group sex videos (three or more performers). The findings of high levels of sexual risk behavior and the fact that there was virtually no difference in the prevalence of anal sex with and without a condom in gay male SEM have important implications for HIV prevention efforts, future research on the role of SEM on sexual risk taking, and public health policy. PMID:23733156

  2. The Influence of Sexually Explicit Online Media on Sex: Do Men who have Sex with Men Believe they “Do What They See”?

    PubMed Central

    Nelson, Kimberly M.; Leickly, Emily; Yang, Joyce P.; Pereira, Andrew; Simoni, Jane M.

    2014-01-01

    Over the past two decades, men who have sex with men (MSM) have engaged in increasing consumption of MSM-specific sexually explicit online media (i.e., online pornography). Furthermore, the amount of MSM-specific sexually explicit online media portraying unprotected anal intercourse (UAI) has increased, raising concerns about HIV transmission among the actors and the encouragement of risky sex among consumers. The influence of sexually explicit online media on sexual risk-taking, at present largely understudied, could lead to new avenues for innovative HIV prevention strategies targeting at-risk MSM. In this preliminary assessment, in-depth qualitative interviews were conducted with sixteen MSM in the Seattle area to elucidate MSM’s perceptions about the influence of sexually explicit online media on their own and other MSM’s sexual behaviors. Participants reported that sexually explicit online media: 1) plays an educational role; 2) increases comfort with sexuality; and 3) sets expectations about sexual behaviors. While participants overwhelmingly reported not feeling personally influenced by viewing UAI in sexually explicit online media, they believed viewing UAI increased sexual risk-taking among other MSM. Specifically, participants reported that the high prevalence of UAI in sexually explicit online media sends the message, at least to other MSM, that: 1) engaging in UAI is common; 2) UAI is acceptable and “ok” to engage in; and 3) future partners will desire or expect UAI. Overall, this preliminary assessment indicates that sexually explicit online media exposure may have both positive (e.g., helping MSM become more comfortable with their sexuality) and negative (e.g., normalizing UAI) impacts on the sexual health of MSM and may be useful in the development of novel HIV-prevention interventions. PMID:24382316

  3. A Non-Blaming Chance and Action Approach to Therapy with Sexually Explicit Media Overuse: A Case Study

    ERIC Educational Resources Information Center

    Wernik, Uri

    2012-01-01

    In this clinical presentation a non-blaming, non-judgmental approach to overuse of sexually explicit media (SEM) is introduced. This approach normalizes the problem and sees it in the context of evolution and market forces. It is claimed that such an approach contributes to change and strengthens the therapeutic alliance. A new technique utilizing…

  4. ORIGINAL RESEARCH--PSYCHOLOGY Implicit and Explicit Cognitive Sexual Processes in Survivors of

    E-print Network

    Meston, Cindy

    desire, female orgasmic disorder, and risky sexual behav- iors are some of the most prominent the development and efficacy of psychological treatments for female sexual dysfunction among survivors of CSA

  5. Gender Differences in Therapist Responses to Client Sexual Material.

    ERIC Educational Resources Information Center

    Schover, Leslie R.

    Sexual feelings between therapist and client have been a source of theoretical controversy since the beginnings of modern psychotherapy. Psychotherapists' (N=72) verbal behavior, affective reactions, and clinical judgments in response to audiotapes of client sexual material were investigated. Therapist gender, client gender, and type of sexual

  6. The relationship between use of sexually explicit media and sexual risk behavior in men who have sex with men: exploring the mediating effects of sexual self-esteem and condom use self-efficacy

    PubMed Central

    Træen, Bente; Hald, Gert Martin; Noor, Syed W.; Iantaffi, Alex; Grey, Jeremy; Rosser, B. R. Simon

    2014-01-01

    This study tests the following three hypotheses: 1) there is a direct association between consumption of sexually explicit media (SEM) depicting non-condom use and STI-related sexual risk behavior among men who have sex with men (MSM), 2) The association between SEM consumption and STI-related sexual risk behavior is mediated by men’s sexual self-esteem, and 3) the relationship between SEM consumption and sexual risk behavior is mediated by condom use self-efficacy. A cross-sectional, Internet-based survey on exposure to SEM and sexual behavior of 1,391 MSM in the USA was conducted in 2011. The results confirmed hypothesis 1 and 3 while hypothesis 2 was rejected. Accordingly, a significant association between the use of SEM picturing condom use and STI related sexual risk behavior among MSM was found. Likewise, we found that the association between the use of SEM and sexual risk behavior was mediated by condom use self-efficacy in an indirect path. However, SEM did not influence sexual risk behavior via sexual self-esteem. To promote STI prevention, the actors in SEM may be used as role models in managing condom use in sexual contexts. PMID:24904709

  7. Compulsive use of Internet-based sexually explicit media: Adaptation and validation of the Compulsive Internet Use Scale (CIUS).

    PubMed

    Downing, Martin J; Antebi, Nadav; Schrimshaw, Eric W

    2014-06-01

    Despite evidence that viewing sexually explicit media (SEM) may contribute to greater numbers of sexual partners, sexual risk taking, greater interest in group sex, and lower self-esteem among men who have sex with men (MSM), research has not addressed compulsive use of Internet-based SEM due to the lack of a validated measure for this population. This report investigates the psychometric properties of the 14-item Compulsive Internet Use Scale (CIUS; Meerkerk, van den Eijnden, Vermulst, & Garretsen, 2009) adapted to assess the severity of compulsive Internet SEM use. A total of 265 Internet SEM-viewing MSM participated in an online survey about their SEM preferences, viewing habits, and recent sexual behaviors. A principal components analysis revealed a single-component, 13-item scale to adequately assess the cognitive, emotional, and behavioral aspects of this phenomenon, with a high internal consistency (?=.92). Greater compulsive use of Internet SEM was positively correlated with several relevant variables including boredom, sexual frustration, time spent viewing Internet SEM, and number of recent male sexual partners. The results offer preliminary evidence for the reliability and validity of using an adapted version of the CIUS to understand compulsive Internet SEM use, and allow for more research into the potential negative consequences of compulsive SEM use. PMID:24679612

  8. Sexually explicit racialised media targeting men who have sex with men online: a content analysis of high-risk behaviour depicted in online advertisements.

    PubMed

    White, Jaclyn M; Dunham, Emilia; Rowley, Blake; Reisner, Sari L; Mimiaga, Matthew J

    2015-01-01

    Sexually explicit media may perpetuate racial and sexual norms among men who have sex with men. While men may be exposed to sexually explicit media in the online settings where they seek sex with other men, no studies to our knowledge have explored the relationship between the racial and sexual content of advertisements appearing in these spaces. In 2011, using a detailed codebook, 217 sexually explicit advertisements on a male sex-seeking website were coded for themes, actor characteristics and sexual acts depicted. Multivariable logistic regression models examined the association between skin colour, theme, sexual acts and condomless sex acts. Nearly half (45%) featured a 'thug' theme (a style emphasising Black masculinity/hip-hop culture), 21% featured a college theme and 44% featured condomless sex. Advertisements featuring only Black men, advertisements featuring Black men with men of other skin tones and advertisements depicting a thug theme were positively associated with depictions of condomless sex. Online sexually explicit advertisements featuring Black themes and actors more frequently depicted condomless sex than advertisements with White men alone. Future research should examine whether depictions of Black men engaging in condomless sex in online advertisements influence the sexual norms and cognitions of Black men who have sex with men and their partners. PMID:25891135

  9. Sexually explicit racialised media targeting men who have sex with men online: A content analysis of high-risk behaviour depicted in online advertisements

    PubMed Central

    White, Jaclyn M.; Dunham, Emilia; Rowley, Blake; Reisner, Sari L.; Mimiaga, Matthew J.

    2015-01-01

    Sexually explicit media may perpetuate racial and sexual norms among men who have sex with men. While men may be exposed to sexually explicit media in the online settings where they seek sex with other men, no studies to our knowledge have explored the relationship between the racial and sexual content of advertisements appearing in these spaces. In 2011, 217 sexually explicit advertisements on a male sex-seeking website were coded for themes, actor characteristics, and sexual acts depicted using a detailed codebook. Multivariable logistic regression models examined the association between skin colour, theme, sexual acts, and condomless sex acts. Nearly half (45%) featured a ‘thug’ theme (style emphasising Black masculinity/hip-hop culture), 21% featured a college theme, and 44% featured condomless sex. Ads featuring only Black men, ads featuring Black men with men of other skin tones, and ads depicting a thug theme were positively associated with depictions of condomless sex. Online sexually explicit ads featuring Black themes and actors more frequently depicted risky sex than ads with White men alone. Future research should examine whether risky depictions of Black men in online ads influence the sexual norms and cognitions of Black men who have sex with men and their partners. PMID:25891135

  10. Extent Matters: Exposure to Sexual Material among Czech Adolescents

    ERIC Educational Resources Information Center

    Ševcíková, Anna; Šerek, Jan; Machácková, Hana; Šmahel, David

    2013-01-01

    Adolescents use media that exposes them to sexual material. This study focused on adolescents in the Czech Republic, a country with relatively high rates of exposure to sexual material (ESM). A sample of adolescents aged 11 to 15 years ("N" = 495) taken from the project EU Kids Online II was examined for predictors of the following:…

  11. Influence of Exposure to Sexually Explicit Films on the Sexual Behavior of Secondary School Students in Ibadan, Nigeria.

    PubMed

    Odeleye, Olubunmi; Ajuwon, Ademola J

    2015-01-01

    Young people in secondary schools who are prone to engage in risky sexual behaviors spend considerable time watching Television (TV) which often presents sex scenes. The influence of exposure to sex scenes on TV (SSTV) has been little researched in Nigeria. This study was therefore designed to determine the perceived influence of exposure to SSTV on the sexual behavior of secondary school students in Ibadan North Local Government Area. A total of 489 randomly selected students were surveyed. Mean age of respondents was 14.1?±?1.9 years and 53.8% were females. About 91% had ever been exposed to sex scenes. The type of TV program from which most respondents reported exposure to sexual scenes was movies (86.9%). Majority reported exposure to all forms of SSTV from secondary storage devices. Students whose TV watching behavior was not monitored had heavier exposures to SSTV compared with those who were. About 56.3% of females and 26.5% of males affirmed that watching SSTV had affected their sexual behavior. Predictor of sex-related activities was exposure to heavy sex scenes. Peer education and school-based programs should include topics to teach young people on how to evaluate presentations of TV programs. PMID:26099156

  12. Parental autonomy support and discrepancies between implicit and explicit sexual identities: dynamics of self-acceptance and defense.

    PubMed

    Weinstein, Netta; Ryan, William S; Dehaan, Cody R; Przybylski, Andrew K; Legate, Nicole; Ryan, Richard M

    2012-04-01

    When individuals grow up with autonomy-thwarting parents, they may be prevented from exploring internally endorsed values and identities and as a result shut out aspects of the self perceived to be unacceptable. Given the stigmatization of homosexuality, individuals perceiving low autonomy support from parents may be especially motivated to conceal same-sex sexual attraction, leading to defensive processes such as reaction formation. Four studies tested a model wherein perceived parental autonomy support is associated with lower discrepancies between self-reported sexual orientation and implicit sexual orientation (assessed with a reaction time task). These indices interacted to predict anti-gay responding indicative of reaction formation. Studies 2-4 showed that an implicit/explicit discrepancy was particularly pronounced in participants who experienced their fathers as both low in autonomy support and homophobic, though results were inconsistent for mothers. Findings of Study 3 suggested contingent self-esteem as a link between parenting styles and discrepancies in sexual orientation measures. PMID:22288529

  13. A Brief Scale to Measure Problematic Sexually Explicit Media Consumption: Psychometric Properties of the Compulsive Pornography Consumption (CPC) Scale among Men who have Sex with Men

    PubMed Central

    Noor, Syed WB; Simon Rosser, B. R.; Erickson, Darin J.

    2015-01-01

    Although the phenomenon of hypersexuality has been described in the literature, and scales of compulsive sexual behavior have been published, the existing measures do not assess compulsive sexually explicit media (SEM) consumption. This study tested the psychometric properties of a new scale, the Compulsive Pornography Consumption (CPC). Exploratory and confirmatory factor analyses results showed good psychometric performance of a five item two factor preoccupation-compulsivity solution. As hypothesized, the scale correlates positively with compulsive sexual behavior, internalized homonegativity, and negatively with sexual self-esteem. The scale will enable researchers to investigate the etiologic factors of compulsive SEM use, and enable clinicians to assess problematic consumption. PMID:25838755

  14. Teaching about Gay and Lesbian Sexual and Affectional Orientation Using Explicit Films to Reduce Homophobia.

    ERIC Educational Resources Information Center

    Wells, Joel W.

    1989-01-01

    Investigated educational approach to reduce homophobia effectively among undergraduate university students using explicit films, lectures, discussions, and a gay-lesbian panel. Results revealed that student responses were significantly more positive on the posttest than on the pretest on the Index of Attitudes Toward Homosexuals and that women…

  15. ACES Human Sexuality Training Network Handbook. A Compilation of Sexuality Course Syllabi and Audio-Visual Material.

    ERIC Educational Resources Information Center

    American Association for Counseling and Development, Alexandria, VA.

    This handbook contains a compilation of human sexuality course syllabi and audio-visual materials. It was developed to enable sex educators to identify and contact one another, to compile Human Sexuality Course Syllabi from across the country, and to bring to attention audio-visual materials which are available for teaching Human Sexuality

  16. The Effects of Gay Sexually Explicit Media on the HIV Risk Behavior of Men who have Sex with Men

    PubMed Central

    Simon Rosser, B. R.; Smolenski, Derek J.; Erickson, Darin; Iantaffi, Alex; Brady, Sonya S.; Galos, Dylan L.; Grey, Jeremy A.; Hald, Gert Martin; Horvath, Keith J.; Kilian, Gunna; Træen, Bente; Wilkerson, J. Michael

    2013-01-01

    This study sought to study consumption patterns of gay-oriented sexually explicit media (SEM) by men who have sex with men (MSM); and to investigate a hypothesized relationship between gay SEM consumption and HIV risk behavior. Participants were 1391 MSM living in the US, recruited online to complete a SEM consumption and sexual risk survey. Almost all (98.5%) reported some gay SEM exposure over the last 90 days. While 41% reported a preference to watch actors perform anal sex without condoms (termed “bareback SEM”), 17% preferred to actors perform anal sex with condoms (termed “safer sex SEM”) and 42% reported no preference. Overall SEM consumption was not associated with HIV risk; however participants who watched more bareback SEM reported significantly greater odds of engaging in risk behavior. The results suggest that a preference for bareback SEM is associated with engaging in risk behavior. More research to understand how MSM develop and maintain preferences in viewing SEM, and to identify new ways to use SEM in HIV prevention, is recommended. PMID:23564010

  17. Perceived Effects of Sexually Explicit Internet Content: The Third-Person Effect in Singapore.

    ERIC Educational Resources Information Center

    Wu, Wei; Koo, Soh Hoon

    2001-01-01

    Investigates the third-person effect of pornography on the Internet. Notes that congruent with the third-person effect, students from a major Singapore university judged pornographic material on the Internet to have a greater impact on others than on themselves. Reveals evidence for a perceived social distance corollary with children to be more…

  18. Normal, Problematic and Compulsive Consumption of Sexually Explicit Media: Clinical Findings using the Compulsive Pornography Consumption (CPC) Scale among Men who have Sex with Men

    PubMed Central

    Rosser, B. R. Simon; Noor, Syed WB; Iantaffi, Alex

    2015-01-01

    To assess problematic sexually explicit media (SEM) consumption, and to identify clinically meaningful cut-off points, we examined clinical correlates using the new Compulsive Pornography Consumption (CPC) scale among 1165 participating MSM. Building on scale practices in measuring compulsive sexual behavior, two cut-off points were identified. While most (76-80%) MSM do not report compulsive symptoms, about 16-20% report levels of problematic SEM consumption, including 7% with extreme scores consistent with DSM criteria for compulsive disorders. Demographic, sexual, and HIV risk differences were identified between the three groups. Researchers and clinicians are encouraged to consider using the CPC scale for comprehensive assessment of compulsive sexual behavior. PMID:26167109

  19. Acceptability of HIV-Prevention Messages in Sexually Explicit Media Viewed by Men Who Have Sex with Men

    PubMed Central

    Wilkerson, J. Michael; Iantaffi, Alex; Smolenski, Derek J.; Horvath, Keith J.; Simon Rosser, B. R.

    2014-01-01

    To inform HIV/STI prevention messaging, we used cross-sectional data from 1,231 MSM to examine the acceptability of strategies for delivering prevention messages in sexually explicit media (SEM). The majority of participants (83%) found it acceptable to include prevention messages in SEM. A latent profile analysis identified three classifications of men with similar views on the acceptability of strategies. Compared to men endorsing some strategies (54%), men endorsing all strategies (29%) were younger (PORadj=0.56 [0.39, 0.79]) and preferred viewing SEM in which the actors used condoms for anal sex (PORadj=1.53 [1.05, 2.23]). Men endorsing no strategies (17%) were of similar age to men endorsing some, but were more likely to prefer viewing SEM in which the actors did not use condoms (PORadj=2.44 [1.43, 4.16]) and to report engaging in insertive unprotected anal sex within the last 3 months (PORadj=2.03 [1.11, 3.70]). Opportunities exist to use SEM for HIV/STI prevention. PMID:23837809

  20. Sexuality and the law.

    PubMed

    Portelli, C J

    1998-01-01

    Federal, state, and local laws in the US now govern almost every aspect of sexuality. This includes sexuality at the workplace, sexuality education, adolescent sexuality, access to sexuality information and sexually explicit materials, sexual orientation, and sexually transmitted disease(STD)/HIV transmission. Almost 33% of the US Supreme Court's docket this past term concerned sexuality issues. In contrast to 50 years ago, when sexuality law was confined to the criminal arena, contemporary "sex crimes" primarily relate to nonconsensual and exploitative behaviors. It is time for lawmakers, judges, lawyers, policy analysts, lobbyists, and advocates to realize they cannot legislate or litigate how, when, or why people fall in love. Rather, the role of the law should be to create and preserve models of justice and equality that seek to preserve one's individual rights to privacy and freedom to choose in matters related to one's sexuality. This includes free access to age-appropriate sexuality information, the right to marriage and children regardless of sexual orientation, comprehensive sexuality education that encompasses information about avoiding unwanted pregnancies and HIV/STDs, access to contraception and abortion, protection from sexually abusive or exploitative relationships, and access to sexual health care. PMID:12295182

  1. SEXUAL MISCONDUCT = Sexual harassment, gender discrimination or bias, sexual assault, rape, stalking or

    E-print Network

    Dennett, Daniel

    SEXUAL MISCONDUCT = Sexual harassment, gender discrimination or bias, sexual assault, rape. SEXUAL MISCONDUCT = Sexual harassment, gender discrimination or bias, sexual assault, rape, stalking inappropriate sexual materials in a location where others can view them. Sexual assault, rape, or attempted

  2. Raunch or Romance? Framing and Interpreting the Relationship between Sexualized Culture and Young People's Sexual Health

    ERIC Educational Resources Information Center

    Bale, Clare

    2011-01-01

    The increase in exposure to sexually explicit material has been cited as a significant factor influencing adolescent sexuality and health. Concern about the negative impact of this material is increasingly prominent within policy, professional groups, and the media. Little research, however, has been conducted within this area. This article…

  3. Where Is the Discourse of Desire? Deconstructing the Irish Relationships and Sexuality Education (RSE) Resource Materials

    ERIC Educational Resources Information Center

    Kiely, Elizabeth

    2005-01-01

    Inspired by poststructuralist insights and the critical literature on the topic of school-based sexuality education, this paper is derived from a close examination of the Relationships and Sexuality Education (RSE) resource materials devised for teachers involved in delivering the programme in Irish schools. It seeks critically to uncover how…

  4. Neural Correlates of Sexual Cue Reactivity in Individuals with and without Compulsive Sexual Behaviours

    PubMed Central

    Voon, Valerie; Mole, Thomas B.; Banca, Paula; Porter, Laura; Morris, Laurel; Mitchell, Simon; Lapa, Tatyana R.; Karr, Judy; Harrison, Neil A.; Potenza, Marc N.; Irvine, Michael

    2014-01-01

    Although compulsive sexual behaviour (CSB) has been conceptualized as a “behavioural” addiction and common or overlapping neural circuits may govern the processing of natural and drug rewards, little is known regarding the responses to sexually explicit materials in individuals with and without CSB. Here, the processing of cues of varying sexual content was assessed in individuals with and without CSB, focusing on neural regions identified in prior studies of drug-cue reactivity. 19 CSB subjects and 19 healthy volunteers were assessed using functional MRI comparing sexually explicit videos with non-sexual exciting videos. Ratings of sexual desire and liking were obtained. Relative to healthy volunteers, CSB subjects had greater desire but similar liking scores in response to the sexually explicit videos. Exposure to sexually explicit cues in CSB compared to non-CSB subjects was associated with activation of the dorsal anterior cingulate, ventral striatum and amygdala. Functional connectivity of the dorsal anterior cingulate-ventral striatum-amygdala network was associated with subjective sexual desire (but not liking) to a greater degree in CSB relative to non-CSB subjects. The dissociation between desire or wanting and liking is consistent with theories of incentive motivation underlying CSB as in drug addictions. Neural differences in the processing of sexual-cue reactivity were identified in CSB subjects in regions previously implicated in drug-cue reactivity studies. The greater engagement of corticostriatal limbic circuitry in CSB following exposure to sexual cues suggests neural mechanisms underlying CSB and potential biological targets for interventions. PMID:25013940

  5. Explicit dispersion relations for elastic waves in extremely deformed soft matter with application to nearly incompressible and auxetic materials

    E-print Network

    Pavel Galich; Stephan Rudykh

    2014-12-31

    We analyze the propagation of elastic waves in soft materials subjected to finite deformations. We derive explicit dispersion relations, and apply these results to study elastic wave propagation in (i) nearly incompressible materials such as biological tissues and polymers, and (ii) negative Poisson's ratio or auxetic materials. We find that for nearly incompressible materials transverse wave velocities exhibit strong dependence on direction of propagation and initial strain state, whereas the longitudinal component is not affected significantly until extreme levels of deformations are attained. For highly compressible materials, we show that both pressure and shear wave velocities depend strongly on initial deformation and direction of propagation. When compression is applied, longitudinal wave velocity decreases in positive bulk modulus materials, and increases for negative bulk modulus materials; this is regardless the direction of wave prorogation. We demonstrate that finite deformations influence elastic wave propagation through combinations of induced effective compressibility and stiffness.

  6. BARNARD COLLEGE SEXUAL VIOLENCE

    E-print Network

    nature. Unwelcome sexual advances, requests for sexual favors, and other verbal, nonverbal or physical of consent involves explicit communication and mutual approval for the act in which the parties are

  7. SEXUAL MISCONDUCT = Sexual harassment, gender discrimination or bias, sexual assault, rape, stalking or

    E-print Network

    Dennett, Daniel

    SEXUAL MISCONDUCT = Sexual harassment, gender discrimination or bias, sexual assault, rape. SEXUAL MISCONDUCT = Sexual harassment, gender discrimination or bias, sexual assault, rape, stalking materials in a location where others can view them. Sexual assault, rape, or attempted rape. 3 #12;4 Sexual

  8. Measures of Implicit and Explicit Attitudes toward Mainstream and BDSM Sexual Terms Using the IRAP and Questionnaire with BDSM/Fetish and Student Participants

    ERIC Educational Resources Information Center

    Stockwell, Fawna M. J.; Walker, Diana J.; Eshleman, John W.

    2010-01-01

    The Implicit Relational Assessment Procedure (IRAP) examines implicit attitudes through the measurement of response latencies. In this study, the IRAP was used to assess implicit attitudes toward "mainstream" sexual terms (e.g., Kissing) and "BDSM" terms (e.g., Bondage) among individuals reporting BDSM interests and among students who did not…

  9. Exposure to harsh parenting and pornography as explanations for males' sexual coercion and females' sexual victimization.

    PubMed

    Simons, Leslie Gordon; Simons, Ronald L; Lei, Man-Kit; Sutton, Tara E

    2012-01-01

    Sexual violence against women is a major concern to researchers and policy makers, as well as to the general public. This study uses a sample of more than 2,000 college students to investigate the extent to which exposure to harsh parenting practices and sexually explicit materials contributes to perpetration and victimization. Findings indicate that frequent corporal punishment in the family of origin combined with consumption of pornographic materials increased the probability that males reported engaging in coercive sexual practices. For females, both frequent corporal punishment and exposure to paternal hostility combined with consumption of pornographic materials were associated with higher levels of reported sexual victimization. These results provide increased understanding of the impact of pornography use among a nonclinical sample, as well as the consequences of experiencing harsh corporal punishment in one's family of origin, on the sexual victimization of females. PMID:22852438

  10. 'For men arousal is orientation': Bodily truthing, technosexual scripts, and the materialization of sexualities through the phallometric test.

    PubMed

    Waidzunas, Tom; Epstein, Steven

    2015-04-01

    We trace the history of the phallometric test--which measures erections of men exposed to visual erotic stimuli to characterize sexualities--in order to account for its functioning as a 'truthing technology'. On the basis of a content analysis of 410 key scientific journal article abstracts, we argue that since its invention in Czechoslovakia in the 1950s, phallometry has been employed within three distinct assemblages: as a test of predominance of sexual desire, as a test for therapeutic efficacy, and as a threshold test of sexual risk. Drawing on works of theorists of materialization and proponents of script theory, we argue that within each assemblage phallometric testing materializes male desire and renders it measurable via a 'technosexual script'. We consider the performative effects of phallometry in establishing scientific conceptions of normal and abnormal sexualities. At the same time, through attention to debates among practitioners and broader controversies surrounding the employment of phallometry, we examine the limits of researchers' abilities to establish the broader credibility of the test and capture the phenomenon of sexual desire. This analysis contributes to the study of truthing technologies (or 'truth machines') as a class, while also helping to build bridges between science and technology studies and sexuality studies. PMID:26477205

  11. An Overview of Sexual Harassment

    ERIC Educational Resources Information Center

    Stier, William F., Jr.

    2005-01-01

    Sexual harassment, according to the Equal Employment Opportunity Commission (EEOC), is when any unwelcome sexual advances for sexual favors, and other verbal or physical conduct of a sexual nature takes place. For sexual harassment to take place there must be some type of behavior, language, or material of a sexual nature, which is offensive.…

  12. Childhood Maltreatment, Psychological Dysregulation, and Risky Sexual Behaviors in Female Adolescents

    PubMed Central

    Haralson, Katherine J.; Butler, Erica M.; Shenk, Chad E.

    2011-01-01

    Objective?Maltreated female adolescents are at risk for engaging in sexual behaviors consistent with HIV infection and teen pregnancy. The current study applied a model positing the key role of psychological dysregulation in the development of adolescent females’ sexual behavior.?Methods?The sample consisted of adolescent females aged 14–17 years who had experienced substantiated childhood maltreatment (n?=?275) and a demographically matched, non-maltreated comparison group (n?=?210).?Results?Multiple mediator analysis revealed that, when in company with a host of plausible mechanisms, sexual preoccupation mediated the relationship between psychological dysregulation and risky sexual behaviors.?Conclusion?Maltreated females may have difficulty regulating emotions, cognitions, and behaviors, which, when coupled with a propensity to entertain sexual thoughts and consume sexually explicit materials, may increase the likelihood that they act on sexual impulses and engage in high-risk sexual behaviors. PMID:21335615

  13. Sexual Violence: Sexual assault

    E-print Network

    Li, X. Rong

    Medical Options · Medical Care/Treatment & Evidence Collection · Student Health Services Reporting SexualSexual Violence: Sexual assault Sexual harassment Stalking Intimate partner abuse/domestic violence Resources FOR VICTIMS OF SEXUAL ASSAULT INFORMATION TO ASSIST MEMBERS OF THE UNIVERSITY OF NEW ORLEANS

  14. Sexual Harassment and Sexual Bulllying

    MedlinePLUS

    ... Snacking Losing Weight Safely Sexual Harassment and Sexual Bullying KidsHealth > Teens > Sexual Health > For Guys > Sexual Harassment ... being sexually harassed or bullied. What Are Sexual Bullying and Harassment? Just like other kinds of bullying, ...

  15. Pornography, sexual socialization, and satisfaction among young men.

    PubMed

    Stulhofer, Aleksandar; Busko, Vesna; Landripet, Ivan

    2010-02-01

    In spite of a growing presence of pornography in contemporary life, little is known about its potential effects on young people's sexual socialization and sexual satisfaction. In this article, we present a theoretical model of the effects of sexually explicit materials (SEM) mediated by sexual scripting and moderated by the type of SEM used. An on-line survey dataset that included 650 young Croatian men aged 18-25 years was used to explore empirically the model. Descriptive findings pointed to significant differences between mainstream and paraphilic SEM users in frequency of SEM use at the age of 14, current SEM use, frequency of masturbation, sexual boredom, acceptance of sex myths, and sexual compulsiveness. In testing the model, a novel instrument was used, the Sexual Scripts Overlap Scale, designed to measure the influence of SEM on sexual socialization. Structural equation analyses suggested that negative effects of early exposure to SEM on young men's sexual satisfaction, albeit small, could be stronger than positive effects. Both positive and negative effects-the latter being expressed through suppression of intimacy-were observed only among users of paraphilic SEM. No effect of early exposure to SEM was found among the mainstream SEM users. To counterbalance moral panic but also glamorization of pornography, sex education programs should incorporate contents that would increase media literacy and assist young people in critical interpretation of pornographic imagery. PMID:18561012

  16. Crime of Power, Not Passion: Sexual Harassment in the Workplace.

    ERIC Educational Resources Information Center

    Business and Professional Women's Foundation, Washington, DC.

    This paper focuses on the problem of sexual harassment in the workplace. The legal definition of sexual harassment as drawn up by the Equal Employment Opportunity Commission is: "unwelcome sexual advances, requests for sexual favors, and other verbal or physical conduct of a sexual nature that are explicitly or implicitly a term or condition of an…

  17. Handbook for Educating on Adolescent Reproductive and Sexual Health. Book One, Understanding the Adolescents and Their Reproductive and Sexual Health: Guide to Better Educational Strategies [and] Book Two, Strategies and Materials on Adolescent Reproductive and Sexual Health Education.

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific, and Cultural Organization, Bangkok (Thailand). Clearing House on Population Education and Communication.

    This two-part handbook presents information on educating adolescents about reproductive and sexual health issues. "Book One, Understanding the Adolescents and Their Reproductive and Sexual Health: Guide to Better Educational Strategies" focuses on the demographic profile of adolescents as well as their fertility, sexual behavior, incidence of…

  18. Sexual Health

    MedlinePLUS

    ... Parents can help their adolescent make healthy choices Sexual Health News & Information Understanding Sexual Health Public Health Reports ... infectious diseases, reproductive health and sexual violence prevention. Sexual Health Topics Sexually Transmitted Diseases Up-to-date information ...

  19. Consumption of Sexual Dialogue and Content on Television and Adolescent Sexual Outcomes: Multiethnic Findings

    ERIC Educational Resources Information Center

    Somers, Cheryl L.; Tynan, Joshua J.

    2006-01-01

    The purposes of this study were to examine group differences in sexual media consumption and to explore how well adolescents' sexual attitudes and behavior can be explained by viewing of sexually suggestive dialogue (SD) and explicit sexual content (SC) in television media. Participants were 473 male and female high school adolescents who were…

  20. Somnambulistic sexual behaviour (sexsomnia).

    PubMed

    Ebrahim, Irshaad Osman

    2006-05-01

    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. PMID:16564199

  1. Novelty, conditioning and attentional bias to sexual rewards.

    PubMed

    Banca, Paula; Morris, Laurel S; Mitchell, Simon; Harrison, Neil A; Potenza, Marc N; Voon, Valerie

    2016-01-01

    The Internet provides a large source of novel and rewarding stimuli, particularly with respect to sexually explicit materials. Novelty-seeking and cue-conditioning are fundamental processes underlying preference and approach behaviors implicated in disorders of addiction. Here we examine these processes in individuals with compulsive sexual behaviors (CSB), hypothesizing a greater preference for sexual novelty and stimuli conditioned to sexual rewards relative to healthy volunteers. Twenty-two CSB males and forty age-matched male volunteers were tested in two separate behavioral tasks focusing on preferences for novelty and conditioned stimuli. Twenty subjects from each group were also assessed in a third conditioning and extinction task using functional magnetic resonance imaging. CSB was associated with enhanced novelty preference for sexual, as compared to control images, and a generalized preference for cues conditioned to sexual and monetary versus neutral outcomes compared to healthy volunteers. CSB individuals also had greater dorsal cingulate habituation to repeated sexual versus monetary images with the degree of habituation correlating with enhanced preference for sexual novelty. Approach behaviors to sexually conditioned cues dissociable from novelty preference were associated with an early attentional bias to sexual images. This study shows that CSB individuals have a dysfunctional enhanced preference for sexual novelty possibly mediated by greater cingulate habituation along with a generalized enhancement of conditioning to rewards. We further emphasize a dissociable role for cue-conditioning and novelty preference on the early attentional bias for sexual cues. These findings have wider relevance as the Internet provides a broad range of novel and potentially rewarding stimuli. PMID:26606725

  2. Enga(y)ging the Discipline: Sexual Minorities and Communication Studies.

    ERIC Educational Resources Information Center

    Heinz, Bettina

    2002-01-01

    Reflects upon theoretical and applied challenges and needs in incorporating sexual orientation issues into communication studies. Argues that communication courses need to explicitly include material related to the life experiences of gay, lesbian, bisexual, and transgendered people; and that reducing homophobia and heterosexism among high school…

  3. Departmental Narrative for Math 104 (Mathematics of Powered Flight) The material for Math 104 was written explicitly to provide a non-calculus course that

    E-print Network

    Yu, Gexin

    was written explicitly to provide a non-calculus course that conforms in detail to the rubrics of GER-1 questions: a) A wind at 20 knots blows from 200o in Spokane where the magnetic variation is 17o East to San Francisco. d) Using wind-histories from the National Climate Data Center, determine the optimal

  4. Sexual Assault

    MedlinePLUS

    Sexual assault is any sexual activity to which you haven't freely given your consent. This includes completed ... trust, a friend, an acquaintance, or a stranger. Sexual assault can affect your health in many ways. It ...

  5. [Adolescent sexuality].

    PubMed

    Calero, Juan del Rey

    2010-01-01

    The social Adolescent features are insecurity, narcissism, eroticism, more impetuosity than reason. 1/3 of adolescents have risk behaviour for health. The pregnancy rate in adolescent are 9/1,000 (11,720, the abort about 50 %). The total abort (2009) were 114,480. Increase the rate of 8,4 (1990) to 14,6/ 1,000 (2009). The sexual education fails. The consulting about contraceptives get pregnancy of the OR 3,2, condom OR 2,7. The adolescent are influenced in his matter: oeer have 70-75 % of influence, mother 30-40 %, father 15 %, for yhe environment and education Cyberspace access to information: 33 % exposed to unwanted sexual materials, 1 in 7 solicited sexual online. The argument have 4 central topic: Morality and Responsibility, Desire (responsibility vs gratification), Danger (fear related to pregnancy and STD/VIH), and Victimization. The prevention of STD: so called safe sex, delayed, and abstinence, Prevention HPV vaccine. The information is not enough, are necessary personal integral formation in values as self control, abstinence, mutual respect, responsibility, reasonable decisions. PMID:21877398

  6. Associations between social support network characteristics and receipt of emotional and material support among a sample of male sexual minority youth

    PubMed Central

    Kapadia, Farzana; Halkitis, Perry; Barton, Staci; Siconolfi, Daniel; Figueroa, Rafael Perez

    2014-01-01

    Few studies have examined how social support network characteristics are related to perceived receipt of social support among male sexual minority youth. Using egocentric network data collected from a study of male sexual minority youth (n=592), multivariable logistic regression analyses examined distinct associations between individual and social network characteristics with receipt of (1) emotional and (2) material support. In multivariable models, frequent communication and having friends in one’s network yielded a two-fold increase in the likelihood of receiving emotional support whereas frequent communication was associated with an almost three-fold higher likelihood of perceived material support. Finally, greater internalized homophobia and personal experiences of gay-related stigma were inversely associated with perceived receipt of emotional and material support, respectively. Understanding the evolving social context and social interactions of this new generation of male sexual minority youth is warranted in order to understand the broader, contextual factors associated with their overall health and well-being. PMID:25214756

  7. Sex-Related Online Behaviors, Perceived Peer Norms and Adolescents’ Experience with Sexual Behavior: Testing an Integrative Model

    PubMed Central

    Doornwaard, Suzan M.; ter Bogt, Tom F. M.; Reitz, Ellen; van den Eijnden, Regina J. J. M.

    2015-01-01

    Research on the role of sex-related Internet use in adolescents’ sexual development has often isolated the Internet and online behaviors from other, offline influencing factors in adolescents’ lives, such as processes in the peer domain. The aim of this study was to test an integrative model explaining how receptive (i.e., use of sexually explicit Internet material [SEIM]) and interactive (i.e., use of social networking sites [SNS]) sex-related online behaviors interrelate with perceived peer norms in predicting adolescents’ experience with sexual behavior. Structural equation modeling on longitudinal data from 1,132 Dutch adolescents (Mage T1 = 13.95; range 11-17; 52.7% boys) demonstrated concurrent, direct, and indirect effects between sex-related online behaviors, perceived peer norms, and experience with sexual behavior. SEIM use (among boys) and SNS use (among boys and girls) predicted increases in adolescents’ perceptions of peer approval of sexual behavior and/or in their estimates of the numbers of sexually active peers. These perceptions, in turn, predicted increases in adolescents’ level of experience with sexual behavior at the end of the study. Boys’ SNS use also directly predicted increased levels of experience with sexual behavior. These findings highlight the need for multisystemic research and intervention development to promote adolescents’ sexual health. PMID:26086606

  8. 25 CFR 700.561 - Sexual harassment.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...allowed to work in an environment free from unsolicited...compliments. It refers to behavior which is not welcome...hostile or offensive work environment. (c) Within the...explicit coercive sexual behavior to control,...

  9. Quality- and dilution losses in the recycling of ferrous materials from end-of-life passenger cars: input-output analysis under explicit consideration of scrap quality.

    PubMed

    Nakamura, Shinichiro; Kondo, Yasushi; Matsubae, Kazuyo; Nakajima, Kenichi; Tasaki, Tomohiro; Nagasaka, Tetsuya

    2012-09-01

    Metals can in theory be infinitely recycled in a closed-loop without any degradation in quality. In reality, however, open-loop recycling is more typical for metal scrap recovered from end-of-life (EoL) products because mixing of different metal species results in scrap quality that no longer matches the originals. Further losses occur when meeting the quality requirement of the target product requires dilution of the secondary material by adding high purity materials. Standard LCA usually does not address these losses. This paper presents a novel approach to quantifying quality- and dilution losses, by means of hybrid input-output analysis. We focus on the losses associated with the recycling of ferrous materials from end-of-life vehicle (ELV) due to the mixing of copper, a typical contaminant in steel recycling. Given the quality of scrap in terms of copper density, the model determines the ratio by which scrap needs to be diluted in an electric arc furnace (EAF), and the amount of demand for EAF steel including those quantities needed for dilution. Application to a high-resolution Japanese IO table supplemented with data on ferrous materials including different grades of scrap indicates that a nationwide avoidance of these losses could result in a significant reduction of CO(2) emissions. PMID:22876977

  10. Internet Sexualities

    NASA Astrophysics Data System (ADS)

    Döring, Nicola

    The term “internet sexuality” (or OSA, online sexual activities) refers to sexual-related content and activities observable on the internet (cf. Adams, Oye, & Parker, 2003; Cooper, McLoughlin, & Campbell, 2000; Leiblum & Döring, 2002). It designates a variety of sexual phenomena (e.g., pornography, sex education, sexual contacts) related to a wide spectrum of online services and applications (e.g., websites, online chat rooms, peer-to-peer networks). If an even broader range of computer networks - such as the Usenet or bulletin board systems - is included in this extensional definition, one speaks of “online sexuality” or “cybersexuality.”

  11. Explicit Finite Element Modeling of Multilayer Composite Fabric for Gas Turbine Engine Containment Systems, Phase II. Part 3; Material Model Development and Simulation of Experiments

    NASA Technical Reports Server (NTRS)

    Simmons, J.; Erlich, D.; Shockey, D.

    2009-01-01

    A team consisting of Arizona State University, Honeywell Engines, Systems & Services, the National Aeronautics and Space Administration Glenn Research Center, and SRI International collaborated to develop computational models and verification testing for designing and evaluating turbine engine fan blade fabric containment structures. This research was conducted under the Federal Aviation Administration Airworthiness Assurance Center of Excellence and was sponsored by the Aircraft Catastrophic Failure Prevention Program. The research was directed toward improving the modeling of a turbine engine fabric containment structure for an engine blade-out containment demonstration test required for certification of aircraft engines. The research conducted in Phase II began a new level of capability to design and develop fan blade containment systems for turbine engines. Significant progress was made in three areas: (1) further development of the ballistic fabric model to increase confidence and robustness in the material models for the Kevlar(TradeName) and Zylon(TradeName) material models developed in Phase I, (2) the capability was improved for finite element modeling of multiple layers of fabric using multiple layers of shell elements, and (3) large-scale simulations were performed. This report concentrates on the material model development and simulations of the impact tests.

  12. Effect of mass media and Internet on sexual behavior of undergraduates in Osogbo metropolis, Southwestern Nigeria

    PubMed Central

    Asekun-Olarinmoye, Olusesan S; Asekun-Olarinmoye, Esther O; Adebimpe, Wasiu O; Omisore, Akin G

    2014-01-01

    Introduction The influence of media portrayals of sexual attitudes and normative expectations of young people at a critical developmental stage is of public health concern. Objectives To examine the role of mass media and Internet utilization in shaping the sexual health attitudes and behaviors of young undergraduates in Osogbo metropolis, Osun State, Nigeria. Materials and methods In a descriptive cross-sectional study, 400 undergraduates were selected using a multistage random sampling technique. Four hundred and fifty pretested, semistructured questionnaires were distributed; of these, 400 were returned properly filled. Data were analyzed using SPSS statistical software version 16. Results Mean age of respondents ± standard deviation was 23.6±2.99 years. Most were aware of the various forms of mass media (>95%). Most (64.0%) respondents spent 1–5 hours watching television, daily, and most used the Internet often. About 38.3% and 24.2% of respondents used the Internet and radio/television, respectively, as sources of information on sexual issues. Most respondents used the Internet for school assignments (83.0%, n=332), electronic mail (89.0%, n=356), and for accessing sexually explicit materials (74.5%, n=298). Most of the respondents (73.5%) opined that the Internet has a bad influence on youths’ sexual behavior, although accessing the Internet for sexual material or movies was acceptable to 25.3% of them. Of the 226 respondents who had ever had sex, 226 (100%), 37 (16.4%), 31 (13.7%), and 10 (4.4%) practiced coitus, oral sex, masturbation, and anal sex, respectively; 122 (54.0%) always used condoms, whereas 90 (40.0%) never used condoms during sexual activity; 33 (14.6%) had had sex with commercial sex workers. Further analysis showed that those who were yet to marry (single) were less likely to be sexually experienced than those who were married (adjusted odds ratio [AOR] =0.075, 95% confidence interval [CI] =0.008–0.679), and those who said accessing the Internet for sexual material is not acceptable to them were also less likely to be sexually experienced than those to whom it was acceptable (AOR =0.043, 95% CI =0.016–0.122). Predictors of having multiple sexual partners include the sex of the respondent and the frequency of Internet use, with females (AOR =0.308, 95% CI =0.113–0.843) and those who rarely use the Internet less likely to have multiple sexual partners. Conclusion We conclude that uncontrolled exposure to mass media and Internet could negatively influence the sexual patterns and behavior of youths. PMID:24729737

  13. Sexual Abuse

    MedlinePLUS

    ... form of non-consensual physical contact. It includes rape, molestation, or any sexual conduct with a person ... more? "Speaking the unspeakable: An interview about elder sexual assault with Holly Ramsey-Klawsnik, Ph.D" in nexus , ...

  14. Sexual Health

    MedlinePLUS

    ... for Kids for Teens Teens Home Body Mind Sexual Health Food & Fitness Diseases & Conditions Infections Q&A School & ... Snacking Losing Weight Safely Learn the facts about sexual health with articles about puberty, menstruation, infections, and just ...

  15. Sexual Health

    MedlinePLUS

    ... have or enjoy sex in both men and women. Factors that can affect sexual health include Fear of unplanned pregnancy Concerns about infertility Sexually transmitted diseases Chronic diseases such as cancer or heart disease Medicines that affect sexual desire or performance

  16. Explicit Fourier wavefield operators

    NASA Astrophysics Data System (ADS)

    Ferguson, R. J.; Margrave, G. F.

    2006-04-01

    Explicit wavefield extrapolators are based on direct analytic mathematical formulae that express the output as an extrapolation operator acting on the input, while implicit methods usually require the calculation of the numerical inverse of a matrix to obtain the output. Typically, explicit methods are faster than implicit methods, and they often give more insight into the physics of the wave propagation, but they often suffer from instability. Four different explicit extrapolators based on Fourier theory are presented and analysed. They are: PS (ordinary phase shift), GPSPI (generalized phase shift plus interpolation), NSPS (non-stationary phase shift) and SNPS (symmetric non-stationary phase shift). A formal proof is given that NSPS in a direction orthogonal to the velocity gradient is the mathematical adjoint process to GPSPI in the opposite direction. This motivates the construction of SNPS that combines NSPS and GPSPI in a symmetric fashion. This symmetry (under interchange of input and output lateral coordinates) is required by reciprocity arguments. PS and SNPS are symmetric while NSPS and GPSPI are not. A numerical stability study using SVD (singular value decomposition) shows that all of these extrapolators can become unstable for strong lateral velocity gradients. Unstable operators allow amplitudes to grow non-physically in a recursion. Stability is enhanced by introducing a small (~3 per cent) imaginary component to the velocities. This causes a numerical attenuation that tends to stabilize the operators but does not address the cause of the instability. For the velocity model studied (a very challenging case) GPSPI and NSPS have exactly the same instability while SNPS is always more stable. Instability manifests in a complicated way as a function of extrapolation step size, frequency, velocity gradient, and strength of numerical attenuation. The SNPS operator can be stabilized over a wide range of conditions with considerably less attenuation than is required for NSPS or GPSPI.

  17. Sexuality and the Curriculum: The Politics and Practices of Sexuality Education. Critical Issues in the Curriculum.

    ERIC Educational Resources Information Center

    Sears, James T., Ed.

    This book of essays explores the explicit and hidden curriculum of sexuality from kindergarten through college. The 15 interrelated essays challenge conventional assumptions regarding sexuality and the curriculum by applying non-traditional perspectives to traditionally unresolved problems while proposing specific curricular strategies and…

  18. Female sexuality.

    PubMed

    Rao, T S Sathyanarana; Nagaraj, Anil Kumar M

    2015-07-01

    Sex is a motive force bringing a man and a woman into intimate contact. Sexuality is a central aspect of being human throughout life and encompasses sex, gender identities and roles, sexual orientation, eroticism, pleasure, intimacy, and reproduction. Sexuality is experienced and expressed in thoughts, fantasies, desires, beliefs, attitudes, values, behaviors, practices, roles and relationships. Though generally, women are sexually active during adolescence, they reach their peak orgasmic frequency in their 30 s, and have a constant level of sexual capacity up to the age of 55 with little evidence that aging affects it in later life. Desire, arousal, and orgasm are the three principle stages of the sexual response cycle. Each stage is associated with unique physiological changes. Females are commonly affected by various disorders in relation to this sexual response cycle. The prevalence is generally as high as 35-40%. There are a wide range of etiological factors like age, relationship with a partner, psychiatric and medical disorders, psychotropic and other medication. Counseling to overcome stigma and enhance awareness on sexuality is an essential step in management. There are several effective psychological and pharmacological therapeutic approaches to treat female sexual disorders. This article is a review of female sexuality. PMID:26330647

  19. Female sexuality

    PubMed Central

    Rao, T.S. Sathyanarana; Nagaraj, Anil Kumar M.

    2015-01-01

    Sex is a motive force bringing a man and a woman into intimate contact. Sexuality is a central aspect of being human throughout life and encompasses sex, gender identities and roles, sexual orientation, eroticism, pleasure, intimacy, and reproduction. Sexuality is experienced and expressed in thoughts, fantasies, desires, beliefs, attitudes, values, behaviors, practices, roles and relationships. Though generally, women are sexually active during adolescence, they reach their peak orgasmic frequency in their 30 s, and have a constant level of sexual capacity up to the age of 55 with little evidence that aging affects it in later life. Desire, arousal, and orgasm are the three principle stages of the sexual response cycle. Each stage is associated with unique physiological changes. Females are commonly affected by various disorders in relation to this sexual response cycle. The prevalence is generally as high as 35–40%. There are a wide range of etiological factors like age, relationship with a partner, psychiatric and medical disorders, psychotropic and other medication. Counseling to overcome stigma and enhance awareness on sexuality is an essential step in management. There are several effective psychological and pharmacological therapeutic approaches to treat female sexual disorders. This article is a review of female sexuality. PMID:26330647

  20. Rayleigh waves in symmetry planes of crystals: explicit secular equations and some explicit wave speeds

    E-print Network

    Michel Destrade

    2013-04-30

    Rayleigh waves are considered for crystals possessing at least one plane of symmetry. The secular equation is established explicitly for surface waves propagating in any direction of the plane of symmetry, using two different methods. This equation is a quartic for the squared wave speed in general, and a biquadratic for certain directions in certain crystals, where it may itself be solved explicitly. Examples of such materials and directions are found in the case of monoclinic crystals with the plane of symmetry at $x_3=0$. The cases of orthorhombic materials and of incompressible materials are also treated.

  1. Sexuality, Television and Broadcast Standards.

    ERIC Educational Resources Information Center

    Heller, Melvin S.

    This monograph provides a rationale for contemporary guidelines for the television and broadcast network management of sexual content in proposed progam materials. Beginning with a brief outline of the professional practices and responsibilities of broadcast standards editors, it then explores the relationships between sexual development,…

  2. [Adolescent's sexuality].

    PubMed

    Roynet, D

    2007-09-01

    Adolescence, period hinge between child and adulthood, is one period of great psychic and physiological vulnerability. The autonomisation, the sexualisation of feelings, the step to on active sexuality are potential situations of conflicts, dangers and various risks to reach and discover its own identity. Attacks against masculinity or femininity, sexual traumas, wounds in the relations (rejects, humiliation, abandon, ...) could have important consequences on sexual health of the adult in becoming. PMID:17958032

  3. Compulsory sexuality.

    PubMed

    Emens, Elizabeth F

    2014-02-01

    Asexuality is an emerging identity category that challenges the common assumption that everyone is defined by some type of sexual attraction. Asexuals--those who report feeling no sexual attraction to others--constitute one percent of the population, according to one prominent study. In recent years, some individuals have begun to identify as asexual and to connect around their experiences interacting with a sexual society. Asexuality has also become a protected classification under the antidiscrimination law of one state and several localities, but legal scholarship has thus far neglected the subject. This Article introduces asexuality to the legal literature as a category of analysis, an object of empirical study, and a phenomenon of medical science. It then offers a close examination of the growing community of self-identified asexuals. Asexual identity has revealing intersections with the more familiar categories of gender, sexual orientation, and disability, and inspires new models for understanding sexuality. Thinking about asexuality also sheds light on our legal system. Ours is arguably a sexual law, predicated on the assumption that sex is important. This Article uses asexuality to develop a framework for identifying the ways that law privileges sexuality. Across various fields, these interactions include legal requirements of sexual activity, special carve-outs to shield sexuality from law, legal protections from others' sexuality, and legal protections for sexual identity. Applying this framework, the Article traces several ways that our sexual law burdens, and occasionally benefits, asexuals. This Article concludes by closely examining asexuality's prospects for broader inclusion into federal, state, and local antidiscrimination laws. PMID:24654293

  4. Teens Share Sexually Explicit Messages: Simple Rebellion or Dangerous Behavior?

    ERIC Educational Resources Information Center

    Curriculum Review, 2009

    2009-01-01

    An increasingly popular form of communication among teenagers is "sexting," sending nude photos via text messaging, reported The Orange County Register (3/20/09). This "flirtation" technique has sparked quite a bit of debate: is this simply a form of rebellion or is it dangerous behavior that could have adverse penalties? Although many teens say…

  5. Making Lifting Obstructions Explicit

    E-print Network

    Neeb, Karl-Hermann; Wockel, Christoph

    2011-01-01

    If P \\to X is a topological principal K-bundle and \\hat K a central extension of K by Z, then there is a natural obstruction class \\delta_1(P) in \\check H^2(X,\\uline Z) in sheaf cohomology whose vanishing is equivalent to the existence of a \\hat K-bundle \\hat P over X with P \\cong \\hat P/Z. In this paper we establish a link between homotopy theoretic data and the obstruction class \\delta_1(P) which in many cases can be used to calculate this class in explicit terms. Writing \\partial_d^P \\: \\pi_d(X) \\to \\pi_{d-1}(K) for the connecting maps in the long exact homotopy sequence, two of our main results can be formulated as follows. If Z is a quotient of a contractible group by the discrete group \\Gamma, then the homomorphism \\pi_3(X) \\to \\Gamma induced by \\delta_1(P) \\in \\check H^2(X,\\uline Z) \\cong H^3_{\\rm sing}(X,\\Gamma) coincides with \\partial_2^{\\hat K} \\circ \\partial_3^P and if Z is discrete, then \\delta_1(P) \\in \\check H^2(X,\\uline Z) induces the homomorphism -\\partial_1^{\\hat K} \\circ \\partial_2^P \\: \\pi_...

  6. Electromagnetic radiation under explicit symmetry breaking.

    PubMed

    Sinha, Dhiraj; Amaratunga, Gehan A J

    2015-04-10

    We report our observation that radiation from a system of accelerating charges is possible only when there is explicit breaking of symmetry in the electric field in space within the spatial configuration of the radiating system. Under symmetry breaking, current within an enclosed area around the radiating structure is not conserved at a certain instant of time resulting in radiation in free space. Electromagnetic radiation from dielectric and piezoelectric material based resonators are discussed in this context. Finally, it is argued that symmetry of a resonator of any form can be explicitly broken to create a radiating antenna. PMID:25910163

  7. Electromagnetic Radiation under Explicit Symmetry Breaking

    NASA Astrophysics Data System (ADS)

    Sinha, Dhiraj; Amaratunga, Gehan A. J.

    2015-04-01

    We report our observation that radiation from a system of accelerating charges is possible only when there is explicit breaking of symmetry in the electric field in space within the spatial configuration of the radiating system. Under symmetry breaking, current within an enclosed area around the radiating structure is not conserved at a certain instant of time resulting in radiation in free space. Electromagnetic radiation from dielectric and piezoelectric material based resonators are discussed in this context. Finally, it is argued that symmetry of a resonator of any form can be explicitly broken to create a radiating antenna.

  8. Direct and indirect measures of sexual maturity preferences differentiate subtypes of child sexual abusers.

    PubMed

    Schmidt, Alexander F; Gykiere, Kim; Vanhoeck, Kris; Mann, Ruth E; Banse, Rainer

    2014-04-01

    To aid risk assessment, management, and treatment planning it is essential to assess child sexual abusers' deviant sexual interests (DSI) and preferences (DSP) for sex with children. However, measurement of DSI/DSP is fraught with psychometric problems. In consequence, research interest has shifted to latency-based indirect measures as a measurement approach to complement self-report and physiological assessment. Utilizing the Explicit and Implicit Sexual Interest Profile (EISIP)-a multimethod approach consisting of self-report, viewing time, and Implicit Association Test (IAT) DSI/DSP measures-we replicated phallometric DSI/DSP differences between child sexual abuser subgroups in a sample of intrafamilial, extrafamilial, and child pornography offenders. DSI/DSP was associated with recidivism risk, offense-behavioral measures of pedophilic interest, and sexual fantasizing. It also negatively correlated with antisociality. Distinguishing between child sexual abuser subtypes and being related to recidivism risk, the EISIP is a useful tool for sexual offender assessments. PMID:23524323

  9. Two young men who complained of voiding difficulty after stuffing odd materials into the urethra to obtain sexual gratification.

    PubMed

    Hong, Sungwoo; Kim, Hyung Jee

    2014-06-01

    The self-insertion of foreign bodies into the urethra to obtain sexual gratification is an uncommon paraphilia and may be complicated by their passage into the urethra and subsequent difficulties in recovering the foreign body. There are two key areas of discussion in relation to this issue: (1) the psychological aspects of the action and (2) the possible treatment options. With careful attention to the patient's history, it is usually possible to identify the foreign body and the time since insertion. In most cases, the individual seeks emergency surgical treatment. Radiological evaluation is necessary to determine the exact size, location, and number of objects. Endoscopic retrieval is usually successful, but open surgical removal is required in some cases. We present two cases of self-insertion of foreign bodies into the urethra. PMID:24987564

  10. Two Young Men Who Complained of Voiding Difficulty After Stuffing Odd Materials Into the Urethra to Obtain Sexual Gratification

    PubMed Central

    Hong, Sungwoo

    2014-01-01

    The self-insertion of foreign bodies into the urethra to obtain sexual gratification is an uncommon paraphilia and may be complicated by their passage into the urethra and subsequent difficulties in recovering the foreign body. There are two key areas of discussion in relation to this issue: (1) the psychological aspects of the action and (2) the possible treatment options. With careful attention to the patient's history, it is usually possible to identify the foreign body and the time since insertion. In most cases, the individual seeks emergency surgical treatment. Radiological evaluation is necessary to determine the exact size, location, and number of objects. Endoscopic retrieval is usually successful, but open surgical removal is required in some cases. We present two cases of self-insertion of foreign bodies into the urethra. PMID:24987564

  11. The Impact of Sexual Arousal on Sexual Risk-Taking and Decision-Making in Men and Women.

    PubMed

    Skakoon-Sparling, Shayna; Cramer, Kenneth M; Shuper, Paul A

    2016-01-01

    Sexual arousal has emerged as an important contextual feature in sexual encounters that can impact safer-sex decision-making. We conducted two experiments that investigated the effects of sexual arousal among male and female participants. Experiment 1 (N = 144) examined the impact of sexual around on sexual health decision-making. Sexually explicit and neutral video clips as well as hypothetical romantic scenarios were used to evaluate the effects of sexual arousal on sexual risk-taking intentions. Men and women who reported higher levels of sexual arousal also displayed greater intentions to participate in risky sexual behavior (e.g., unprotected sex with a new sex partner). Experiment 2 (N = 122) examined the impact of sexual arousal on general risk-taking, using the same videos clips as in Experiment 1 and a modified version of a computerized Blackjack card game. Participants were offered a chance to make either a risky play or a safe play during ambiguous conditions. Increased sexual arousal in Experiment 2 was associated with impulsivity and a greater willingness to make risky plays in the Blackjack game. These findings suggest that, in situations where there are strong sexually visceral cues, both men and women experiencing strong sexual arousal may have lower inhibitions and may experience impaired decision-making. This phenomenon may have an impact during sexual encounters and may contribute to a failure to use appropriate prophylactic protection. PMID:26310879

  12. The Explicit Teaching of Reading.

    ERIC Educational Resources Information Center

    Hancock, Joelie, Ed.

    Exploring the explicit teaching of reading, this book is the result of a group of Australian teachers who took a closer look at their teaching so that they could be clearer to their kindergarten through middle-school students. Chapter 1 is based on a presentation at a Saturday inservice program on explicit teaching. Chapters 2-9 were written by…

  13. Supplementary Materials for4 Risky ripples allow bats and frogs to eavesdrop on a multisensory sexual6

    E-print Network

    Ryan, Michael J.

    1 1 2 3 Supplementary Materials for4 5 Risky ripples allow bats and frogs to eavesdrop the following:19 20 Movies S1 to S321 22 23 24 #12;2 Materials and Methods25 Frog experiments26 27 We collected calling male túngara frogs 1 - 3 hours after sunset in and around28 Gamboa, Panamá, in November 2012

  14. Sexual Health

    MedlinePLUS

    ... our e-newsletter! Aging & Health A to Z Sexual Health Basic Facts & Information All adults, including older people, ... the opportunity to enjoy a satisfying and fulfilling sex life. In fact, most of them do, even ...

  15. Healthy Sexuality

    MedlinePLUS Videos and Cool Tools

    ... viewing this embedded video, please click here . Transcript Sex and sexuality are important issues for many people, regardless of their age, sex, or gender. Although many people are embarrassed or ...

  16. Teenage Sexuality

    MedlinePLUS

    ... Pediatrician Ages & Stages Prenatal Baby Toddler Preschool Gradeschool Teen Dating & Sex Fitness Nutrition Driving Safety School Substance Abuse Young Adult Healthy Children > Ages & Stages > Teen > Dating & Sex > Teenage Sexuality Ages & Stages Listen Español Text Size ...

  17. Sexual sadism in sexual offenders and sexually motivated homicide.

    PubMed

    Briken, Peer; Bourget, Dominique; Dufour, Mathieu

    2014-06-01

    This article gives a clinically oriented overview of forensically relevant forms of sexual sadism disorder and its specific relationship to sexual homicide. In sexual homicide perpetrators, peculiar patterns of sexual sadism may be a motivational pathway to kill. Sexual sadism increases the risk for reoffending in sexual offenders. Through psychotherapy and pharmacological interventions, treatment of sadistic sex offenders has to consider special characteristics that may be different from those of nonsadistic sex offenders. Many of these offenders share a combination of sexual sadistic motives and an intact self-regulation, sometimes combined with a high level of sexual preoccupation. PMID:24877708

  18. SEXUAL MISCONDUCT/SEXUAL ASSAULT POLICY

    E-print Network

    Dennett, Daniel

    Sexual Misconduct to seek assistance from counseling or mental health services and/or to seek medicalSEXUAL MISCONDUCT/SEXUAL ASSAULT POLICY Office of Equal Opportunity Purpose: To establish a work and educational environment at Tufts University that is free from Sexual Misconduct, which includes sexual

  19. On Feeling Torn About One’s Sexuality

    PubMed Central

    Windsor-Shellard, Ben

    2014-01-01

    Three studies offer novel evidence addressing the consequences of explicit–implicit sexual orientation (SO) ambivalence. In Study 1, self-identified straight females completed explicit and implicit measures of SO. The results revealed that participants with greater SO ambivalence took longer responding to explicit questions about their sexual preferences, an effect moderated by the direction of ambivalence. Study 2 replicated this effect using a different paradigm. Study 3 included self-identified straight and gay female and male participants; participants completed explicit and implicit measures of SO, plus measures of self-esteem and affect regarding their SO. Among straight participants, the response time results replicated the findings of Studies 1 and 2. Among gay participants, trends suggested that SO ambivalence influenced time spent deliberating on explicit questions relevant to sexuality, but in a different way. Furthermore, the amount and direction of SO ambivalence was related to self-esteem. PMID:24972940

  20. Linking Online Sexual Activities to Health Outcomes among Teens

    ERIC Educational Resources Information Center

    O'Sullivan, Lucia F.

    2014-01-01

    New digital technologies are highly responsive to many of the developmental needs of adolescents, including their need for intimate connection and social identity. This chapter explores adolescents' use of web-based sexual information, texting and "sexting," online dating sites, role-playing games, and sexually explicit media, and…

  1. Explicit 3-D Hydrodynamic FEM Program

    Energy Science and Technology Software Center (ESTSC)

    2000-11-07

    DYNA3D is a nonlinear explicit finite element code for analyzing 3-D structures and solid continuum. The code is vectorized and available on several computer platforms. The element library includes continuum, shell, beam, truss and spring/damper elements to allow maximum flexibility in modeling physical problems. Many materials are available to represent a wide range of material behavior, including elasticity, plasticity, composites, thermal effects and rate dependence. In addition, DYNA3D has a sophisticated contact interface capability, includingmore »frictional sliding, single surface contact and automatic contact generation.« less

  2. Healthy Aging -- Sexual Health

    MedlinePLUS

    ... Healthy Aging This information in Spanish ( en español ) Sexual health More information on sexual health Many older women ... Protecting yourself Return to top More information on Sexual health Read more from womenshealth.gov Sexually Transmitted Infections ...

  3. Sexually Transmitted Diseases (STDs)

    MedlinePLUS

    ... link in the menu on the left. Common Names Sexually transmitted diseases STDs Sexually transmitted infections STIs Medical or Scientific Names Sexually transmitted diseases Sexually transmitted infections Last Reviewed: ...

  4. Online sexual activity: cross-national comparison between United States and Peruvian college students.

    PubMed

    Velezmoro, Rodrigo; Negy, Charles; Livia, Jose

    2012-08-01

    The current generation of college students commonly uses the Internet for myriad sexually-related purposes. Yet, it has been suggested that usage of the Internet for sexual purposes might lead to psychological problems. In this study, undergraduate students from a public university in the U.S. (n = 320) and Peru (n = 251) completed questionnaires addressing their online sexual activity (OSA), psychological adjustment, and family environment and communication. Results indicated that Peruvians used the Internet significantly more than U.S. students to view sexually-explicit material (SEM), find sexual partners, and search for sex-related information. Men, irrespective of nationality, used the Internet to view SEM significantly more than women. Social support, religiosity, and erotophilia were found to moderate the relations between nationality and OSA. In absolute terms, both national groups, on average, engaged in OSA a relatively low number of hours each week. Further, no differences were found in maladjustment between those who engage in OSA and those who do not, suggesting that concerns over OSA are probably unwarranted. PMID:22083655

  5. Explicit Substitutions and All That

    NASA Technical Reports Server (NTRS)

    Ayala-Rincon, Mauricio; Munoz, Cesar

    2000-01-01

    Explicit substitution calculi are extensions of the lambda-calculus where the substitution mechanism is internalized into the theory. This feature makes them suitable for implementation and theoretical study of logic-based tools such as strongly typed programming languages and proof assistant systems. In this paper we explore new developments on two of the most successful styles of explicit substitution calculi: the lambda sigma- and lambda S(e)-calculi.

  6. Explicit Substitutions and All That

    NASA Technical Reports Server (NTRS)

    Ayala-Rincon, Mauricio; Munoz, Cesar; Busnell, Dennis M. (Technical Monitor)

    2000-01-01

    Explicit substitution calculi are extensions of the Lambda-calculus where the substitution mechanism is internalized into the theory. This feature makes them suitable for implementation and theoretical study of logic-based tools such as strongly typed programming languages and proof assistant systems. In this paper we explore new developments on two of the most successful styles of explicit substitution calculi: the lambda(sigma)- and lambda(s(e))-calculi.

  7. "Looking at the Real Thing": Young Men, Pornography, and Sexuality Education

    ERIC Educational Resources Information Center

    Allen, Louisa

    2006-01-01

    This article examines the sexually explicit comments and references to pornography in young men's answers to a survey about sexuality education. Instead of viewing these remarks as simply impertinent and therefore discountable, I argue that they offer insights into the constitution of masculine identity and an erotic deficit in sexuality

  8. Sexuality after breast cancer: a review.

    PubMed

    Gilbert, Emilee; Emilee, Gilbert; Ussher, J M; Perz, J

    2010-08-01

    It is widely recognised that women's sexuality can be particularly complex after breast cancer, with sexual changes often becoming the most problematic aspect of a woman's life. The impact of such changes can last for many years after successful treatment, and can be associated with serious physical and emotional side-effects. The objective of this paper is to review research on breast cancer and sexuality from the years 1998 to 2010. Research has documented a range of physical changes to a woman's sexuality following breast cancer, including disturbances to sexual functioning, as well as disruptions to sexual arousal, lubrication, orgasm, sexual desire, and sexual pleasure, resulting from chemotherapy, chemically induced menopause, tamoxifen, and breast cancer surgery. Women's intrapsychic experience of changes to sexuality includes a fear of loss of fertility, negative body image, feelings of sexual unattractiveness, loss of femininity, depression and anxiety, as well as alterations to a sense of sexual self. The discursive construction of femininity and sexuality shapes the way women construct and experience their illness and their body - leading many women to try to appear 'normal' to others post-breast surgery. Finally, the quality of a woman's partnered relationship consistently predicts sexual health post-breast cancer - reinforcing the importance of recognising the intersubjective nature of issues surrounding breast cancer and sexuality. It is concluded that analyses of sexuality in the context of breast cancer cannot conceptualise the physical body separately from women's intrapsychic negotiation, her social and relational context, and the discursive constructions of sexuality and femininity: a material-discursive-intrapsychic interaction. PMID:20439140

  9. Sexual Education and Morality.

    ERIC Educational Resources Information Center

    Spiecker, Ben

    1992-01-01

    Distinguishes five interpretations of sexual education including factual knowledge; self-control; stressing love; sexual training; and sexual morality. Suggests that sexual education should be understood as teaching children the moral tendencies relevant to sexual conduct. Argues that infantile sexual desire is based on a contradiction in terms…

  10. SEXUAL ASSAULT, SEXUAL HARASSMENT, STALKING OR RELATIONSHIP VIOLENCE POLICY

    E-print Network

    McConnell, Terry

    ,domestic or dating violence,stalking,sexual coercion and non-contact sexual abuse such as voyeurism,and sexual and other forms of sexual assault, sexual coercion and non- contact sexual abuse such as voyeurism

  11. Implicit and explicit memory bias in anxiety.

    PubMed

    Mathews, A; Mogg, K; May, J; Eysenck, M

    1989-08-01

    Previous investigations of recall and recognition for threatening information in clinically anxious subjects have yielded equivocal results. The present study contrasts implicit (word completion) with explicit (cued recall) memory and shows that indices of bias for emotional material derived from the two types of memory are independent of one another. The explicit measure was correlated with trait anxiety scores, but did not clearly distinguish between subjects with clinical anxiety states and normal control subjects. On the implicit memory measure, clinically anxious subjects produced more threat word completions, but only from a set to which they had recently been exposed. These results are taken as evidence that internal representations of threat words are more readily or more persistently activated in anxiety states, although they are not necessarily better elaborated. PMID:2768658

  12. Explicit Proofs and The Flip

    E-print Network

    Mulmuley, Ketan

    2010-01-01

    This article describes a formal strategy of geometric complexity theory (GCT) to resolve the {\\em self referential paradox} in the $P$ vs. $NP$ and related problems. The strategy, called the {\\em flip}, is to go for {\\em explicit proofs} of these problems. By an explicit proof we mean a proof that constructs proof certificates of hardness that are easy to verify, construct and decode. The main result in this paper says that (1) any proof of the arithmetic implication of the $P$ vs. $NP$ conjecture is close to an explicit proof in the sense that it can be transformed into an explicit proof by proving in addition that arithmetic circuit identity testing can be derandomized in a blackbox fashion, and (2) stronger forms of these arithmetic hardness and derandomization conjectures together imply a polynomial time algorithm for a formidable explicit construction problem in algebraic geometry. This may explain why these conjectures, which look so elementary at the surface, have turned out to be so hard.

  13. Harvard University Sexual Harassment and

    E-print Network

    Chen, Yiling

    , humiliating, or sexually offensive working environment. Workplace sexual harassment includes behavior or sexually suggestive comments, jokes, innuendoes or gestures; Displaying sexually suggestive objects

  14. Explicit 2-D Hydrodynamic FEM Program

    Energy Science and Technology Software Center (ESTSC)

    1996-08-07

    DYNA2D* is a vectorized, explicit, two-dimensional, axisymmetric and plane strain finite element program for analyzing the large deformation dynamic and hydrodynamic response of inelastic solids. DYNA2D* contains 13 material models and 9 equations of state (EOS) to cover a wide range of material behavior. The material models implemented in all machine versions are: elastic, orthotropic elastic, kinematic/isotropic elastic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, rubber, high explosive burn, isotropic elastic-plastic, temperature-dependent elastic-plastic. Themore »isotropic and temperature-dependent elastic-plastic models determine only the deviatoric stresses. Pressure is determined by one of 9 equations of state including linear polynomial, JWL high explosive, Sack Tuesday high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, and tabulated.« less

  15. Sexuality, contraception, and the media. Committee on Public Education.

    PubMed

    2001-01-01

    Early sexual intercourse among American adolescents represents a major public health problem. Although early sexual activity may be caused by a variety of factors, the media are believed to play a significant role. In film, television, and music, sexual messages are becoming more explicit in dialogue, lyrics, and behavior. In addition, these messages contain unrealistic, inaccurate, and misleading information that young people accept as fact. Teens rank the media second only to school sex education programs as a leading source of information about sex. Recommendations are presented to help pediatricians address the effects of the media on sexual attitudes, beliefs, and behaviors of their patients. PMID:11134460

  16. Male-Female Sexuality: An Annotated Bibliography.

    ERIC Educational Resources Information Center

    Wilson, Janice

    This annotated bibliography contains over 500 sources on the historical and contemporary development and expression of male and female sexuality. There are 68 topic headings which provide easy access for subject areas. A major portion of the bibliography is devoted to contemporary male-female sexuality. These materials consist of research findings…

  17. Sexual Harassment-Free Campus Committee Against

    E-print Network

    Po, Lai-Man

    contact or gestures · Unwelcome request for sex · Unwanted invitations · Sexual comments or jokes or distributing offensive or pornographic materials such as posters, pinups, cartoons, graffiti or calendars · Offensive communications of a sexual nature (letters, phone calls, faxes, e-mail messages, etc.) · Staring

  18. Sexual selection: Another Darwinian process.

    PubMed

    Gayon, Jean

    2010-02-01

    Why was sexual selection so important to Darwin? And why was it de-emphasized by almost all of Darwin's followers until the second half of the 20th century? These two questions shed light on the complexity of the scientific tradition named "Darwinism". Darwin's interest in sexual selection was almost as old as his discovery of the principle of natural selection. From the beginning, sexual selection was just another "natural means of selection", although different from standard "natural selection" in its mechanism. But it took Darwin 30 years to fully develop his theory, from the early notebooks to the 1871 book The Descent of Man, and Selection in Relation to Sex. Although there is a remarkable continuity in his basic ideas about sexual selection, he emphasized increasingly the idea that sexual selection could oppose the action of natural selection and be non adaptive. In time, he also gave more weight to mate choice (especially female choice), giving explicit arguments in favor of psychological notions such as "choice" and "aesthetic sense". But he also argued that there was no strict demarcation line between natural and sexual selection, a major difficulty of the theory from the beginning. Female choice was the main reason why Alfred Russel Wallace, the co-discoverer of the principle of natural selection, engaged in a major controversy with Darwin about sexual selection. Wallace was suspicious about sexual selection in general, trying to minimize it by all sorts of arguments. And he denied entirely the existence of female choice, because he thought that it was both unnecessary and an anthropomorphic notion. This had something to do with his spiritualist convictions, but also with his conception of natural selection as a sufficient principle for the evolutionary explanation of all biological phenomena (except for the origin of mind). This is why Wallace proposed to redefine Darwinism in a way that excluded Darwin's principle of sexual selection. The main result of the Darwin-Wallace controversy was that most Darwinian biologists avoided the subject of sexual selection until at least the 1950s, Ronald Fisher being a major exception. This controversy still deserves attention from modern evolutionary biologists, because the modern approach inherits from both Darwin and Wallace. The modern approach tends to present sexual selection as a special aspect of the theory of natural selection, although it also recognizes the big difficulties resulting from the inevitable interaction between these two natural processes of selection. And contra Wallace, it considers mate choice as a major process that deserves a proper evolutionary treatment. The paper's conclusion explains why sexual selection can be taken as a test case for a proper assessment of "Darwinism" as a scientific tradition. Darwin's and Wallace's attitudes towards sexual selection reveal two different interpretations of the principle of natural selection: Wallace's had an environmentalist conception of natural selection, whereas Darwin was primarily sensitive to the element of competition involved in the intimate mechanism of any natural process of selection. Sexual selection, which can lack adaptive significance, reveals this exemplarily. PMID:20338530

  19. Sex Differences in Memory for Sexually-Relevant Information

    PubMed Central

    McCall, Katie M.; Rellini, Alessandra H.; Seal, Brooke N.

    2010-01-01

    The present study was conducted in an attempt to examine potential differences between men and women in memory for sexually relevant information. A total of 77 undergraduate students (31 men, 46 women) read a sexual story and completed memory tasks in response to the story. Based on previous research, we hypothesized that differences would exist between men and women for different types of sexual information and we hoped to understand whether specific variables (sexual experiences, sexual functioning, and reactions to the sexual story) could explain such differences. Men were more likely to remember erotic or explicit details of the story, whereas women were more likely to remember love and emotional bonding details of the story. Additionally, women were more likely to recall information referencing the characters in the story. Results from regression analyses indicated that sexual desire and satisfaction were related to differences in recall and recognition of the love and emotional bonding aspects of the story, and that frequency of sexual intercourse was related to differences in the recall of erotic or explicit details of the story. The significant results obtained in this study correspond to previously established sex differences in memory for sexual information. PMID:17186127

  20. Toddlers and Sexual Behavior

    MedlinePLUS

    Pediatrics Common Questions, Quick Answers Toddlers and Sexual Behavior Donna D'Alessandro, M.D. Lindsay Huth, B. ... problem or sexual abuse. What kind of sexual behaviors are okay? Masturbation in toddlers is usually nothing ...

  1. Sexuality and Down Syndrome

    MedlinePLUS

    ... Down Syndrome Managing Behavior Sexuality Sexuality & Down Syndrome Social and Sexual Education Recreation & Friendship Education Education & Down Syndrome Schooling from Preschool to Age 21 Implementing Inclusion College & Postsecondary Options Looking for Postsecondary Education O' ...

  2. Your Sexual Health

    MedlinePLUS

    ... AQ FREQUENTLY ASKED QUESTIONS FAQ072 WOMEN’S HEALTH Your Sexual Health • What causes sexual problems in women? • What are ... another term for interest in and desire for sex) and sexual activity sometimes decrease with age. This ...

  3. Sexual desire and arousal disorders in women.

    PubMed

    Laan, Ellen; Both, Stephanie

    2011-01-01

    According to incentive motivation theory, sexual desire is the result of the interplay between a sensitive sexual response system and stimuli that activate the system. From this notion it follows that sexual desire is not a cause but a consequence of sexual arousal. The effects of hormones, somatic disease and medication on sexual arousability are discussed, as well as the influence of psychological factors - such as stimulus meaning, mood and cognition - and relational context on female sexual desire and arousal. At present, much attention is being paid to possible pharmacological treatments for decreased desire and arousal problems, even though desire and arousal seem more strongly associated with psychological and relational factors. Empirical evidence of the effect of psychological treatments for decreased desire and arousal problems in women is scarce. A cognitive-behavioral therapy approach with explicit attention to relational context and a focus on improving arousal and sexual satisfaction has shown to be effective. Knowledge about which treatment elements bring about change is still lacking. PMID:22005202

  4. Does Sexual Satisfaction Change With Relationship Duration?

    PubMed

    Schmiedeberg, Claudia; Schröder, Jette

    2016-01-01

    Despite a large body of empirical literature on sexual satisfaction, its development over the course of a relationship is still unclear. Only a small number of studies, most of which have relied on cross-sectional data of convenience samples, have explicitly focused on relationship duration, and empirical evidence is mixed. We analyzed how sexual satisfaction changes over the course of a relationship using three waves of the German Family Panel study (pairfam). We concentrated our analyses on young and middle-aged heterosexual individuals in committed relationships (N = 2,814) and applied fixed effects regression models, which have the advantage of estimations based on changes within individuals over time. We found a positive development of sexual satisfaction in the first year of a relationship, followed by a steady decline. This pattern persisted even when controlling for the frequency of intercourse, although the effects were, in part, mediated by intercourse frequency. We explained the non-linear effect of relationship duration on sexual satisfaction with an initial learning effect regarding partner-specific sexual skills, which is then outweighed by a decline in passion at later stages of a relationship. Moreover, we found significant effects for the control variables of health status, intimacy in couple communication, and conflict style, as expected. In contrast to past research, however, cohabitation and marriage were not found to play a role for sexual satisfaction in our data. Further research is required to deepen the understanding of the reasons why sexual satisfaction changes with relationship duration. PMID:26246315

  5. Stumbling into sexual crime: the passive perpetrator in accounts by male internet sex offenders.

    PubMed

    Winder, Belinda; Gough, Brendan; Seymour-Smith, Sarah

    2015-01-01

    Public reactions to internet child offending remain ambivalent in that, while there is vocal condemnation of contact child sex offending, there is less indignation about internet child abuse. This is potentially due to a lack of recognition of this type of offence as sexual offending per se. This ambiguity is reflected by internet sex offenders themselves in their verbalizations of their offending. This article presents a qualitative analysis of the accounts offered by seven individuals convicted of internet-based sexual offences involving the downloading and viewing of images of children. In particular, this article presents an analysis of the explanations of offenders for the commencement of internet activity and the progression to more illicit online materials. The data were collected through semi-structured interviews and analyzed using discursive methods, paying close attention to language use and function. The analysis documented the practices that internet child abusers employed in order to manage their identities, distance themselves from the label of sex offender, and/or reduce their personal agency and accountability. Implications of this analysis are discussed with reference to the current minimization of the downloading of sexually explicit images of children as a sexual crime per se by the public and offenders alike and the risk assessment and treatment of individuals convicted of these offences. PMID:24917484

  6. of sexual harassment and discrimination

    E-print Network

    , Gender, Religion, Color, Nation Origin, Age, Sexual Orientation, Gender Identity, Gender Expressionof sexual harassment and discrimination Equal Opportunity & Title IX Office University of Nevada, Reno #12;Today's Conversation will Include the Following: Sexual Content Sexual Harassment Sexual

  7. Sexuality Resource Guide and Supplement.

    ERIC Educational Resources Information Center

    Colorado State Library, Denver.

    Intended for those working with the developmentally disabled, the bibliography contains approximately 300 entries on resource materials in the area of human sexuality. Included, with pertinent bibliographic information and a brief description, are listings of books, pamphlets, films, filmstrips, sound filmstrips, film loops, cassettes, articles,…

  8. Lect. 15: Sexual selection Sexual dimorphism

    E-print Network

    with reproduction) Selection for sexual dimorphism? · Fitness under natural selection: typically same for both sexes Survival ReproductionFitness Selection for sexual dimorphism? · Must act on sexes differently · Process Fitness Sexual selection · Differential reproductive success due to variation among individuals in ability

  9. Sensory exploitation and sexual conflict

    PubMed Central

    Arnqvist, Göran

    2006-01-01

    Much of the literature on male–female coevolution concerns the processes by which male traits and female preferences for these can coevolve and be maintained by selection. There has been less explicit focus on the origin of male traits and female preferences. Here, I argue that it is important to distinguish origin from subsequent coevolution and that insights into the origin can help us appreciate the relative roles of various coevolutionary processes for the evolution of diversity in sexual dimorphism. I delineate four distinct scenarios for the origin of male traits and female preferences that build on past contributions, two of which are based on pre-existing variation in quality indicators among males and two on exploitation of pre-existing sensory biases among females. Recent empirical research, and theoretical models, suggest that origin by sensory exploitation has been widespread. I argue that this points to a key, but perhaps transient, role for sexually antagonistic coevolution (SAC) in the subsequent evolutionary elaboration of sexual traits, because (i) sensory exploitation is often likely to be initially costly for individuals of the exploited sex and (ii) the subsequent evolution of resistance to sensory exploitation should often be associated with costs due to selective constraints. A review of a few case studies is used to illustrate these points. Empirical data directly relevant to the costs of being sensory exploited and the costs of evolving resistance is largely lacking, and I stress that such data would help determining the general importance of sexual conflict and SAC for the evolution of sexual dimorphism. PMID:16612895

  10. Cues Resulting in Desire for Sexual Activity in Women

    PubMed Central

    McCall, Katie; Meston, Cindy

    2010-01-01

    Introduction A number of questionnaires have been created to assess levels of sexual desire in women, but to our knowledge, there are currently no validated measures for assessing cues that result in sexual desire. A questionnaire of this nature could be useful for both clinicians and researchers, because it considers the contextual nature of sexual desire and it draws attention to individual differences in factors that can contribute to sexual desire. Aim The aim of the present study was to create a multidimensional assessment tool of cues for sexual desire in women that is validated in women with and without hypoactive sexual desire disorder (HSDD). Methods Factor analyses conducted on both an initial sample (N = 874) and a community sample (N = 138) resulted in the Cues for Sexual Desire Scale (CSDS) which included four factors: (i) Emotional Bonding Cues; (ii) Erotic/ Explicit Cues; (iii) Visual/Proximity Cues; and (iv) Implicit/Romantic Cues. Main Outcome Measures Scale construction of cues associated with sexual desire and differences between women with and without sexual dysfunction. Results The CSDS demonstrated good reliability and validity and was able to detect significant differences between women with and without HSDD. Results from regression analyses indicated that both marital status and level of sexual functioning predicted scores on the CSDS. The CSDS provided predictive validity for the Female Sexual Function Index desire and arousal domain scores, and increased cues were related to a higher reported frequency of sexual activity in women. Conclusions The findings from the present study provide valuable information regarding both internal and external triggers that can result in sexual desire for women. We believe that the CSDS could be beneficial in therapeutic settings to help identify cues that do and do not facilitate sexual desire in women with clinically diagnosed desire difficulties. PMID:16942529

  11. Addressing Sexual Harassment

    ERIC Educational Resources Information Center

    Young, Ellie L.; Ashbaker, Betty Y.

    2008-01-01

    This article discusses ways on how to address the problem of sexual harassment in schools. Sexual harassment--simply defined as any unwanted and unwelcome sexual behavior--is a sensitive topic. Merely providing students, parents, and staff members with information about the school's sexual harassment policy is insufficient; schools must take…

  12. Explicit feedback maintains implicit knowledge.

    PubMed

    Mealor, Andy D; Dienes, Zoltan

    2013-09-01

    The role of feedback was investigated with respect to conscious and unconscious knowledge acquired during artificial grammar learning (AGL). After incidental learning of training sequences, participants classified further sequences in terms of grammaticality and reported their decision strategy with or without explicit veridical feedback. Sequences that disobeyed the learning structure conformed to an alternative structure. Feedback led to an increase in the amount of reported conscious knowledge of structure (derived rules and recollections) but did not increase its accuracy. Conversely, feedback maintained the accuracy of unconscious knowledge of structure (intuition or familiarity-based responses) which otherwise degraded. Results support a dual-process account of AGL. They suggest that implicit learning of the to-be-rejected structure at test contaminates familiarity-based classifications whereas feedback allows competing familiarity signals to be contextualised, which is incompatible with theories that consider familiarity context-insensitive. PMID:23770696

  13. Sexting and Sexual Behavior in At-Risk Adolescents

    PubMed Central

    Barker, David; Rizzo, Christie; Hancock, Evan; Norton, Alicia; Brown, Larry K.

    2014-01-01

    OBJECTIVES: This study aimed to examine the prevalence of sexting behaviors (sexually explicit messages and/or pictures) among an at-risk sample of early adolescents as well as the associations between sexting behaviors and sexual behaviors, risk-related cognitions, and emotional regulation skills. It also aimed to determine whether differences in risk were associated with text-based versus photo-based sexts. METHODS: Seventh-grade adolescents participating in a sexual risk prevention trial for at-risk early adolescents completed a computer-based survey at baseline regarding sexting behavior (having sent sexually explicit messages and/or pictures), sexual activities, intentions to have sex, perceived approval of sexual activity, and emotional regulation skills. RESULTS: Twenty-two percent of the sample reported having sexted in the past 6 months; sexual messages were endorsed by 17% (n = 71), sexual messages and photos by 5% (n = 21). Pictures were endorsed significantly more often by females (?2[2] = 7.33, P = .03) and Latinos (?2[2] = 7.27, P = .03). Sexting of any kind was associated with higher rates of engaging in a variety of sexual behaviors, and sending photos was associated with higher rates of sexual activity than sending text messages only. This was true for a range of behaviors from touching genitals over clothes (odds ratio [OR] = 1.98, P = .03) to oral sex (OR = 2.66, P < .01) to vaginal sex (OR = 2.23, P < .01). CONCLUSIONS: Sexting behavior (both photo and text messages) was not uncommon among middle school youth and co-occurred with sexual behavior. These data suggest that phone behaviors, even flirtatious messages, may be an indicator of risk. Clinicians, parents, and health programs should discuss sexting with early adolescents. PMID:24394678

  14. Sexuality and Islam.

    PubMed

    Dialmy, Abdessamad

    2010-06-01

    This paper deals with three major questions: (1) What are the sexual norms defined by the sacred texts (Koran and Sunna)? (2) What are the sexual practices currently observed among Moslems? (3) To which extent are current sexual practices of Moslems dissociated from Islamic sexual norms? Sexual standards in Islam are paradoxical: on the one hand, they allow and actually are an enticement to the exercise of sexuality but, on the other hand, they discriminate between male and female sexuality, between marital and pre- or extramarital sexuality, and between heterosexuality and homosexuality. Men are given more rights with regard to the expression of their sexuality; women are forbidden to have extramarital sex (with their slaves) and both genders to have homosexual relationships. The combination of these paradoxical standards with modernisation leads to the current back and forth swing of sexual practices between repression and openness. Partial modernisation leads to greater sexual tolerance. But restrictive sexual standards have gathered strength and have become idealised as a result of the current radicalisation of Islam. This swing of the pendulum between repression and openness is illustrated by phenomena such as public harassment, premarital sexuality, female pleasure, prostitution, and homosexuality. Currently, Islam is not any more the only reference which provides guidance concerning sexual practices but secularisation of sexual laws is still politically unthinkable today. So the only solution is to achieve reform in the name of Islam, through the reinterpretation of repressive holy texts. PMID:20441406

  15. J Sex Med 2007;4:364371 2006 International Society for Sexual Medicine Blackwell Publishing IncMalden, USAJSMJournal of Sexual Medicine1743-6095 2007 International Society for Sexual Medicine200742364371Original ArticlesCues for Sexual DesireMcCall and M

    E-print Network

    Meston, Cindy

    assesses four distinct aspects of desire motivators: (i) Love/Emotional Bonding Cues; (ii) Erotic findings, women with low sexual desire reported significantly less Love/Emotional Bonding Cues, Erotic women with and without sexual desire concerns in Love/ Emotional Bonding Cues, Erotic/Explicit Cues

  16. Linking online sexual activities to health outcomes among teens.

    PubMed

    O'Sullivan, Lucia F

    2014-01-01

    New digital technologies are highly responsive to many of the developmental needs of adolescents, including their need for intimate connection and social identity. This chapter explores adolescents' use of web-based sexual information, texting and "sexting," online dating sites, role-playing games, and sexually explicit media, and presents new data comparing the interpersonal and intrapersonal health outcomes among youth who engage in online sexual activities to those who do not. Despite the media-stoked concerns surrounding adolescents' participation in online sexual activities, the ubiquity of online activities and close overlap between online and offline activities indicate that this type of behavior should not be pathologized or used as a metric of problem behavior. The chapter concludes with implications for parents, educators, researchers, counselors, and health care providers, a call to challenge our deep discomfort around adolescent sexuality and to harness these technologies in ways that help promote growth and positive development. PMID:24962361

  17. Indian concepts on sexuality

    PubMed Central

    Chakraborty, Kaustav; Thakurata, Rajarshi Guha

    2013-01-01

    India is a vast country depicting wide social, cultural and sexual variations. Indian concept of sexuality has evolved over time and has been immensely influenced by various rulers and religions. Indian sexuality is manifested in our attire, behavior, recreation, literature, sculptures, scriptures, religion and sports. It has influenced the way we perceive our health, disease and device remedies for the same. In modern era, with rapid globalization the unique Indian sexuality is getting diffused. The time has come to rediscover ourselves in terms of sexuality to attain individual freedom and to reinvest our energy to social issues related to sexuality. PMID:23858263

  18. Causes of sexual dysfunction (image)

    MedlinePLUS

    Female sexual dysfunction describes women who are indifferent or hostile to sexual intercourse, who have no response to sexual advances or stimulation, or who are unable to have an orgasm during sexual intercourse.

  19. ORIGINAL PAPER Sexual Victimization, Alcohol Intoxication, Sexual-Emotional

    E-print Network

    combine to exacerbate their sexual risks. Keywords Child sexual abuse Á Sexual assault Á Alcohol Á Sexual in the past year, completed childhood sexual abuse (CSA) and adolescent/adult sexual assault(ASA) measures, Gender, and Reproduction, Indiana University, Bloomington, IN, USA J. Norris Alcohol and Drug Abuse

  20. Sexual harassment in Dentistry: prevalence in dental school

    PubMed Central

    GARBIN, Cléa Adas Saliba; ZINA, Lívia Guimarães; GARBIN, Artênio José Insper; MOIMAZ, Suzely Adas Saliba

    2010-01-01

    Objective Sexual harassment is unlawful in all work and educational environments in most nations of the world. The goals of this study were to describe the sexual harassment prevalence and to evaluate the experiences and attitudes of undergraduate students in one dental school in Brazil. Material and Methods An 18-item questionnaire was administered to 254 dental students with a completion rate of 82% (208). Students were requested to respond to questions about their background and academic level in dental school, their personal experiences with sexual harassment and their observation of someone else being sexually harassed. Bivariate statistical analyses were performed. Results Fifteen percent of the students reported being sexually harassed by a patient, by a relative of a patient or by a professor. Male students had 3 times higher probability of being sexually harassed than female student [OR=2.910 (1.113-7.611)]. Additionally, 25.4% of the students reported witnessing sexual harassment at the school environment. The majority of students did not feel professionally prepared to respond to unwanted sexual behaviors. Conclusion These findings demonstrate that sexual harassment can occur in a dental school setting. There is a need for ongoing sexual harassment education programs for students and university staff. Increased knowledge of sexual harassment during graduation can better prepare dental professionals to respond to sexual harassment during their practice. PMID:21085799

  1. Getting the 'blues': the existence, diffusion and influence of pornography on young peoples' sexual health in Sierra Leone.

    PubMed

    Day, Andrea

    2014-01-01

    While substantial research has examined the effects of pornography on young people in developed societies, existing studies fall short in addressing how sexually-explicit material affects young people in developing countries. The importance of such knowledge increases as the globalising effects of technology expand young peoples' access and exposure to pornography. During the summer of 2012, a study was undertaken in Sierra Leone examining factors affecting young peoples' sexual and reproductive health. The research assessed the influence of HIV knowledge, communication about sex, civil war and contraception myths on sexual behaviours, while remaining open to unanticipated factors. During data collection, respondents identified pornography, also called blues, as an influential factor, detailing its newfound accessibility driven by improved access to information and communication technologies in the country. Respondents also addressed several presumed ways in which pornography impacts young peoples' decisions about sexual health. The following study examines perceived effects of young peoples' exposure to pornography based on existing literature. It then outlines the findings of research conducted in Sierra Leone, drawing on primary data from the respondents and relevant published literature and concludes with proposals for addressing its negative effects. PMID:24387328

  2. Teen Sexual Health

    MedlinePLUS

    ... sex puts you at risk of getting a sexually transmitted disease, such as herpes or genital warts, or HIV, ... however, latex condoms are the best protection against sexually transmitted diseases (STDs). Condoms are also a form of birth ...

  3. Sexual Problems in Women

    MedlinePLUS

    ... results from past sexual trauma. Occasional problems with sexual function are common. If problems last more than a few months or cause distress for you or your partner, you should see your health care provider.

  4. Sexuality in Older Adults

    MedlinePLUS

    ... feel good about yourself. As you age, your sexual health will change. But growing older doesn’t have ... life at any age. How does aging affect sexual health? Changes for women: As a woman approaches menopause, ...

  5. Children and Sexuality.

    ERIC Educational Resources Information Center

    Corbett, Susan Miller

    1991-01-01

    Presents a newsletter that discusses methods parents can use to handle sexual questions or behavior in young children. An accompanying letter to parents addresses young children's sexual behavior and ways parents can respond to this behavior. (GH)

  6. Sexual Assault against Females

    MedlinePLUS

    ... give her consent because she is under the influence of alcohol or drugs threatened to be hurt ... do sexual assaults happen? Estimating rates of sexual violence against women is a difficult task. Many factors ...

  7. Notes on sexuality & space

    E-print Network

    Jacobson, Samuel Ray

    2013-01-01

    Very little has been written on sexuality in architectural scholarship. Sexuality & Space (Princeton Architectural Press, 1992) contains the proceedings of an eponymous 1990 conference at Princeton University, and was both ...

  8. Sexual Orientation (For Parents)

    MedlinePLUS

    ... Development Infections Diseases & Conditions Pregnancy & Baby Nutrition & Fitness Emotions & Behavior School & Family Life First Aid & Safety Doctors & ... Pregnant? What to Expect Sexual Orientation KidsHealth > Parents > Emotions & Behavior > Feelings & Emotions > Sexual Orientation Print A A ...

  9. The Relationship Between Sexual Content on Mass Media and Social Media: A Longitudinal Study.

    PubMed

    Vandenbosch, Laura; van Oosten, Johanna M F; Peter, Jochen

    2015-12-01

    The goal of this study was to investigate whether exposure to sexual reality television content and Internet pornography (IP) is related to sexual self-presentation on social media. Based on a two-wave panel survey among 1,765 adolescents aged 13-17 years, we found that watching sexual reality television content stimulated adolescents to produce and distribute sexual images of themselves on social media. In turn, sexual self-presentation on social media led adolescents to watch sexual reality television content more frequently. These relationships were similar among boys and girls. No reciprocal relationship between exposure to IP and boys' and girls' sexual self-presentation on social media was found. The results suggest that sexual content in mainstream mass media may predict adolescents' sexually oriented behavior on social media and vice versa. Moreover, adolescents seem to differentiate between types of sexual content (i.e., mainstream versus more explicit sexual content) when incorporating sexual media content in their sexual behavior online. PMID:26588715

  10. The Problem... ! Sexual Assault & Sexual Harassment are

    E-print Network

    Berdichevsky, Victor

    on college campuses. ! FBI statistics indicate that 1 out of 4 women and 1 out of 10 men will be a survivor, guilt) $ Date rape, a form of sexual assault, is rape by someone the victim is dating. $ Acquaintance rape, a form of sexual assault, is rape by a non-stranger, such as a friend #12;Defining the Terms

  11. Sexual Intimacy After Sexual Assault or Sexual Abuse1

    E-print Network

    Machel, Hans

    are not permanent, they can be very frustrating as they can decrease the enjoyment of one's sexual life and intimacy fearing losing control of their body or feeling vulnerable to someone else. Others may react by having

  12. Team Packs: Addressing Human Sexuality Issues.

    ERIC Educational Resources Information Center

    Florida Univ., Gainesville. Inst. for Child Health Policy.

    This kit provides materials that teach about Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS), sexually transmitted diseases (STDs), and pregnancy using group instructional methodology to actively engage students in the learning process. Using cooperative learning materials and videotape recordings, the program stresses…

  13. American Academy of Pediatrics. Policy statement--sexuality, contraception, and the media.

    PubMed

    2010-09-01

    From a health viewpoint, early sexual activity among US adolescents is a potential problem because of the risk of pregnancy and sexually transmitted infections. New evidence points to the media adolescents use frequently (television, music, movies, magazines, and the Internet) as important factors in the initiation of sexual intercourse. There is a major disconnect between what mainstream media portray-casual sex and sexuality with no consequences-and what children and teenagers need-straightforward information about human sexuality and the need for contraception when having sex. Television, film, music, and the Internet are all becoming increasingly sexually explicit, yet information on abstinence, sexual responsibility, and birth control remains rare. It is unwise to promote "abstinence-only" sex education when it has been shown to be ineffective and when the media have become such an important source of information about "nonabstinence." Recommendations are presented to help pediatricians address this important issue. PMID:20805150

  14. Necrophilia and sexual homicide.

    PubMed

    Stein, Michelle L; Schlesinger, Louis B; Pinizzotto, Anthony J

    2010-03-01

    A closed case-file review of 211 sexual homicides identified 16 cases of necrophilia. The results of this unique descriptive study of necrophilia associated with sexual homicide provide information on crime-scene locations, methods of killing, body disposition, premortem sexual assault, specifics of the necrophilic acts, methods of victim abduction, and motivational dynamics. The findings suggest that the most common explanation for necrophilia-the offender's desire to have an unresisting partner-may not always be applicable in cases where this rare paraphilia is connected to sexual murder. The possibility of using crime-scene behaviors in these cases to investigate serial sexual murders is offered. PMID:20102474

  15. Explicit constructions of pseudorandom generators and extractors

    E-print Network

    Shaltiel, Ronen

    are the seed length and output length, and additionally to obtain simple and direct constructions. This thesisExplicit constructions of pseudo­random generators and extractors Thesis submitted for the degree October 2001 #12; #12; Explicit constructions of pseudo­random generators and extractors Thesis submitted

  16. Thinking Styles in Implicit and Explicit Learning

    ERIC Educational Resources Information Center

    Xie, Qiuzhi; Gao, Xiangping; King, Ronnel B.

    2013-01-01

    This study investigated whether individual differences in thinking styles influence explicit and implicit learning. Eighty-seven university students in China participated in this study. Results indicated that performance in the explicit learning condition was positively associated with Type I thinking styles (i.e. legislative and liberal styles)…

  17. Implicit and Explicit Exercise and Sedentary Identity

    ERIC Educational Resources Information Center

    Berry, Tanya R.; Strachan, Shaelyn M.

    2012-01-01

    We examined the relationship between implicit and explicit "exerciser" and "sedentary" self-identity when activated by stereotypes. Undergraduate participants (N = 141) wrote essays about university students who either liked to exercise or engage in sedentary activities. This was followed by an implicit identity task and an explicit measure of…

  18. Implicit and Explicit Instruction of Spelling Rules

    ERIC Educational Resources Information Center

    Kemper, M. J.; Verhoeven, L.; Bosman, A. M. T.

    2012-01-01

    The study aimed to compare the differential effectiveness of explicit and implicit instruction of two Dutch spelling rules. Students with and without spelling disabilities were instructed a spelling rule either implicitly or explicitly in two experiments. Effects were tested in a pretest-intervention-posttest control group design. Experiment 1…

  19. Maintaining sexuality in menopause.

    PubMed

    Nappi, Rossella E; Martini, Ellis; Martella, Silvia; Capuano, Francesca; Bosoni, David; Giacomini, Sonia; Beraghi, Matteo; Spinillo, Arsenio

    2014-03-13

    Sexual health in the menopause is a medical challenge because the progressive decline of sexual hormones interacts with the aging process and many psychosocial stressors modulate vulnerability for sexual symptoms (low sexual desire, poor arousal and lubrication, dyspareunia, orgasmic dysfunction and lack of satisfaction). In clinical practice, a coordinated approach is needed to optimally manage the risk for developing female sexual dysfunction (FSD), especially when chronic conditions are present. Biomedical and psychosocial interventions include general education, recognition of signs and symptoms, promotion of health, attention to the partner and individualization of treatment. Counselling to overcome personal and relational difficulties should be always combined with hormonal and non-hormonal strategies to maximize biological signals driving the sexual response. By enhancing women's abilities to cope with sexual changes at midlife, health care providers may significantly optimize healthy aging and partnership. PMID:24879777

  20. The Physical Signs of Child Sexual Abuse Royal College of Paediatrics and Child Health (RCPCH) et al The Physical Signs of Child Sexual Abuse 292pp £49.00 RCPCH 9781906579005 1906579008 [Formula: see text].

    PubMed

    2015-12-01

    THIS IS evidence-based guidance for best practice in managing child sexual abuse. It reviews evidence for physical signs, interspersed with clinical diagrams and photographs that are explicit but appropriate. PMID:26654019

  1. Sexpectations: Male College Students' Views about Displayed Sexual References on Females' Social Networking Web Sites

    PubMed Central

    Moreno, Megan A.; Swanson, Michael J.; Royer, Heather; Roberts, Linda J.

    2011-01-01

    Study Objective Sexual reference display on a social networking web site (SNS) is associated with self-reported sexual intention; females are more likely to display sexually explicit content on SNSs. The purpose of this study was to investigate male college students' views towards sexual references displayed on publicly available SNSs by females. Design Focus groups Setting One large state university Participants Male college students age 18–23 Interventions All tape recorded data was fully transcribed, then discussed to determine thematic consensus. Main Outcome Measures A trained male facilitator asked participants about views on sexual references displayed on SNSs by female peers and showed examples of sexual references from female's SNS profiles to facilitate discussion. Results A total of 28 heterosexual male participants participated in 7 focus groups. Nearly all participants reported using Facebook to evaluate potential female partners. Three themes emerged from our data. First, participants reported that displays of sexual references on social networking web sites increased sexual expectations. Second, sexual reference display decreased interest in pursuing a dating relationship. Third, SNS data was acknowledged as imperfect but valuable. Conclusion Females who display sexual references on publicly available SNS profiles may be influencing potential partners' sexual expectations and dating intentions. Future research should examine females' motivations and beliefs about displaying such references, and educate women about the potential impact of these sexual displays. PMID:21190872

  2. 03.904 Sexual Harassment. 1. Purpose. To provide the UNT System Personnel and members of the

    E-print Network

    or professional performance or creating an intimidating, hostile or offensive employment, or educational, such as use of inappropriate terms of address; j. sexually explicit or sexist comments, questions or jokes

  3. Evaluating the Effectiveness of Explicit Instruction on Implicit and Explicit L2 Knowledge

    ERIC Educational Resources Information Center

    Akakura, Motoko

    2012-01-01

    This study examined the effectiveness of explicit instruction on second language (L2) learners' implicit and explicit knowledge of English. Explicit instruction on the generic and non-generic use of English articles was delivered by CALL activities. Four tasks assessed acquisition: elicited imitation, oral production, grammaticality judgement, and…

  4. Youth Who Sexual Offended

    PubMed Central

    Koh, Li Lian; Zeng, Gerald; Teoh, Jennifer

    2015-01-01

    There has been an increased focus on understanding youth sexual offending in recent years, but there has been limited empirical research on the causes, pathways, and treatment of youth who have sexually offended—especially within a non-Western context. The Good Lives and Self-Regulation Models have often been used to understand and rehabilitate adult sexual offenders, but (unfortunately) there is scant research on youth who sexually offended using these models. The present study aims to describe the different primary goods that are associated with youth sexual offending behaviors in an Asian context. In addition, the study sought to explore whether the age of victim (child vs. nonchild) and nature of sexual offense (penetrative vs. nonpenetrative) influenced the youth’s engagement in offense pathways. The results suggest that pleasure, relatedness, and inner peace were the primary human goods that were most sought after by a sample of 168 youth who sexually offended in Singapore. In addition, offender classification (in relation to the age of victim and nature of sexual offense) influenced the pathways to sexual offending. Therefore, these findings have important clinical implications for assessment, management, and intervention planning for youth who sexually offended. PMID:24048701

  5. How does breeding system variation modulate sexual antagonism?

    PubMed

    Bedhomme, Stéphanie; Bernasconi, Giorgina; Koene, Joris M; Lankinen, Asa; Arathi, H S; Michiels, Nico K; Anthes, Nils

    2009-10-23

    The study of sexually antagonistic (SA) traits remains largely limited to dioecious (separate sex), mobile animals. However, the occurrence of sexual conflict is restricted neither by breeding system (the mode of sexual reproduction, e.g. dioecy or hermaphroditism) nor by sessility. Here, we synthesize how variation in breeding system can affect the evolution and expression of intra- and inter-locus sexual conflicts in plants and animals. We predict that, in hermaphrodites, SA traits will (i) display lower levels of polymorphism; (ii) respond more quickly to selection; and (iii) involve unique forms of interlocus conflict over sex allocation, mating roles and selfing rates. Explicit modelling and empirical tests in a broader range of breeding systems are necessary to obtain a general understanding of the evolution of SA traits. PMID:19553248

  6. Sexuality and headache.

    PubMed

    Del Bene, E; Conti, C; Poggioni, M; Sicuteri, F

    1982-01-01

    Ten percent of 362 headache sufferers reported sexual arousal during migraine attack. Clinical investigations on sexuality in 16 headache sufferers, according to some studies showing correlations between idiopathic headache and sexual behavior, were performed. Patients responding by questionnaire listed each sexual experience, headache attack, and number of sleeping hours every day for 1 month. In both men and women, the number of coiti, erotic dreams, and sleeping hours were similar in headache sufferers and controls, while the frequency of masturbation was significantly reduced in the former. Sexual excitement and fantasies appeared more often in female headache sufferers than in controls, while the opposite occurred in the male group. Among the clinical analogies between the crises of migraine and morphine abstinence, sexual arousal may be included. PMID:7054999

  7. Explicit as Enabler for Understanding the Tacit

    NASA Astrophysics Data System (ADS)

    Sandberg, Anna Börjesson; Olsson, Carl Magnus

    Knowledge that can be expressed in words and numbers (i.e., explicit knowledge) only represents the tip of the iceberg in organizational knowledge. Explicit knowledge may be communicated in formal, systematic language, using standard notations. This paper reviews how explicit knowledge is used within software engineering, and has found that this tip is important to store organizational knowledge, discuss improvements, and communicate competences. We further discuss how the tip can be viewed as a facilitator for understanding tacit knowledge, such as context dependent actions, commitments, and involvement. To support these arguments, we have studied software engineering units within Ericsson AB during the period 2005-2007 to learn more about software engineering process descriptions and notations in practice. Findings indicate that unambiguous process descriptions are dependent on obvious software process notations and that the explicit nature of described software processes serve as a vital catalyst in initiating discussions of tacit knowledge.

  8. Evolution and human sexuality.

    PubMed

    Gray, Peter B

    2013-12-01

    The aim of this review is to put core features of human sexuality in an evolutionary light. Toward that end, I address five topics concerning the evolution of human sexuality. First, I address theoretical foundations, including recent critiques and developments. While much traces back to Darwin and his view of sexual selection, more recent work helps refine the theoretical bases to sex differences and life history allocations to mating effort. Second, I consider central models attempting to specify the phylogenetic details regarding how hominin sexuality might have changed, with most of those models honing in on transitions from a possible chimpanzee-like ancestor to the slightly polygynous and long-term bonded sociosexual partnerships observed among most recently studied hunter-gatherers. Third, I address recent genetic and physiological data contributing to a refined understanding of human sexuality. As examples, the availability of rapidly increasing genomic information aids comparative approaches to discern signals of selection in sexuality-related phenotypes, and neuroendocrine studies of human responses to sexual stimuli provide insight into homologous and derived mechanisms. Fourth, I consider some of the most recent, large, and rigorous studies of human sexuality. These provide insights into sexual behavior across other national samples and on the Internet. Fifth, I discuss the relevance of a life course perspective to understanding the evolution of human sexuality. Most research on the evolution of human sexuality focuses on young adults. Yet humans are sexual beings from gestation to death, albeit in different ways across the life course, and in ways that can be theoretically couched within life history theory. PMID:24151100

  9. Female sexual dysfunction.

    PubMed

    Wright, Jennifer J; O'Connor, Kim M

    2015-05-01

    Female sexual dysfunction is a common patient concern. After providing an overview regarding the various types of female sexual dysfunction, we will focus on history taking and treatment options for desire, arousal, orgasm, and pain disorders. Testosterone therapy and management of selective serotonin reuptake inhibitor-associated sexual dysfunction are reviewed. Treatments for atrophic vaginitis are appraised. Patient cases lead the discussion, providing the reader with clinically relevant information. PMID:25841603

  10. Sexual morality of Christianity.

    PubMed

    Runkel, G

    1998-01-01

    After discussing the origin of religion, functions of religion, and the construction of meaning by religion, the author focuses on the connection between religion and anxiety. The permanent anxiety in religion is determined by guilt feelings that arise for example from the violation of norms in the area of sexuality. In a religion at enmity with sexuality, such as Christianity, the satisfaction of sexual desires is considered bad and sinful; the permanent production of anxiety and a guilty conscience are the result of it. Christian sexual suppression leads to the propagation of asceticism as the taming of corrupt sensuality that only religious virtuosi can maintain. One result of asceticism is celibacy, although passages from the Bible demand monogamy for bishops without prohibiting celibacy. In Catholicism, celibacy institutionalizes the enmity with sexuality and causes a permanent depreciation of real sexuality in favor of one projected onto the mother church and the Virgin Mary. A further consequence of asceticism is the reduction of sexuality to reproduction. In the section about the factual consequences of Christian sexual morality, the author connects sexual instinctual gratification with religious affiliation on the basis of an analysis of the sexual behavior of Germans. The weekly frequency rate of sexual intercourse amounts to 3.1 with male and female nondenominationals, 2.6 with Protestants, and 2.3 with Catholics; 39% of nondenominational men, 20% of Protestant men, and 12% of Catholic men in Germany use condoms. The connection of religion and aggression is empirically significant as well. The religiously most active men feel more inclined to use aggression to reach sexual goals than religiously indifferent ones. PMID:9611690

  11. Sexual health and contraception.

    PubMed

    Straw, Fiona; Porter, Charlotte

    2012-10-01

    Sexual health encompasses 'sexual development and reproductive health, as well as the ability to develop and maintain meaningful interpersonal relationships; appreciate one's own body; interact with both genders in respectful and appropriate ways; express affection, love and intimacy in ways consistent with one's own values'. The 2008 WHO Consensus Statement additionally noted that 'responsible adolescent intimate relationships' should be 'consensual, non-exploitative, honest, pleasurable and protected against unintended pregnancy and STDs if any type of intercourse occurs'. Young people (YP) must, therefore, be able to access sexual health information and services that meet their needs. For most YP, interest in sexual activity begins with puberty, and this is associated with increasingly sexualised behaviour, including exploration of themselves and others. Most YP find this a confusing time, and so it is important that health professionals are able to offer advice regarding the wide range of sexual health issues, including sexuality, choice of partner, contraception, risk and management of sexually transmitted infections (STI) in a confident and approachable manner. YP have never had so much choice or information available to them, and this can be confusing for them. There is good evidence that YP who get information from their parents are likely to initiate sexual activity later than their peers who access information from their friends. However, there is also evidence that some YP would prefer to get sexual health information from health professionals. It is therefore imperative that all health professionals who see YP have an awareness of sexual health issues, and know where to signpost YP should they need more specialist sexual health advice and/or treatment. Where appropriate, one-to-one sexual health advice should be provided to YP on how to prevent and get tested for STIs, and how to prevent unwanted pregnancies. Advice should also be given on all methods of reversible contraception, including long-acting reversible contraception, emergency contraception and other reproductive issues. PMID:22983512

  12. Explicit Polarization Theory Yingjie Wang,2

    E-print Network

    Truhlar, Donald G

    1 Explicit Polarization Theory Yingjie Wang,2 Michael J. M. Mazack,2 Donald G. Truhlar,2 and Jiali theory, we call this approach the explicit polarization (X-Pol) method. Strategies and examples ij ij ij ij ij o tt n n t torsion t o aa angles a a o bb bonds b b R qq RR n V KRRKV 612 22 )]cos(1

  13. Sexting, substance use, and sexual risk behavior in young adults

    PubMed Central

    Benotsch, Eric G.; Snipes, Daniel J.; Martin, Aaron M.; Bull, Sheana S.

    2012-01-01

    Purpose Cell phone use has become more widespread over the past decade. Young adults are frequently early adopters of new technologies, including cell phones. Most prior research examining sexting, the act of sending sexually explicit or suggestive images via text message, has focused on the legal or social consequences of this behavior. The current study focused on the public health implications of sexting by examining associations between sexting, substance use, and sexual risk behavior in youth. Methods Young adults (N=763) completed online questionnaires assessing demographics, cell phone use (e.g., texting, sexting), substance use, and sexual risk behaviors. Results Sexting was reported by a substantial minority of participants (44%). Compared to their non-sexting counterparts, participants who engaged in sexting were more likely to report recent substance use and high-risk sexual behaviors, including unprotected sex and sex with multiple partners. Of those who engaged in sexting, a considerable percentage (31.8%) reported having sex with a new partner for the first time after sexting with that person. In multivariate analyses, sexting was associated with high-risk sexual behavior after accounting for demographic factors, total texting behaviors, and substance use. Conclusions Results suggest that sexting is robustly associated with high-risk sexual behavior. Many individuals exchange explicit or provocative photos with long-term sexual partners, but at least some participants in this study were incurring new sexual risks subsequent to sexting. Additional research is needed to understand the contexts in which sexting occurs, motivations for sexting, and relationship of sexting to risk behavior. PMID:23299017

  14. Girls' Sexual Development in the Inner City: From Compelled Childhood Sexual Contact to Sex-for-Things Exchanges

    ERIC Educational Resources Information Center

    Dunlap, Eloise; Golub, Andrew; Johnson, Bruce D.

    2003-01-01

    Child Sexual Abuse (CSA) has been linked to a wide variety of adverse psychological and behavioral outcomes. This paper describes girls' sexual development in the inner city based on qualitative material from a long-term ethnographic (observational) study. For many inner-city girls, early and then continued experiences of being compelled to have…

  15. Sleep enhances explicit recollection in recognition memory.

    PubMed

    Drosopoulos, Spyridon; Wagner, Ullrich; Born, Jan

    2005-01-01

    Recognition memory is considered to be supported by two different memory processes, i.e., the explicit recollection of information about a previous event and an implicit process of recognition based on an acontextual sense of familiarity. Both types of memory supposedly rely on distinct memory systems. Sleep is known to enhance the consolidation of memories, with the different sleep stages affecting different types of memory. In the present study, we used the process-dissociation procedure to compare the effects of sleep on estimates of explicit (recollection) and implicit (familiarity) memory formation on a word-list discrimination task. Subjects studied two lists of words before a 3-h retention interval of sleep or wakefulness, and recognition was tested afterward. The retention intervals were positioned either in the early night when sleep is dominated by slow-wave sleep (SWS), or in the late night, when sleep is dominated by REM sleep. Sleep enhanced explicit recognition memory, as compared with wakefulness (P < 0.05), whereas familiarity was not affected by sleep. Moreover, explicit recognition was particularly enhanced after sleep in the early-night retention interval, and especially when the words were presented with the same contextual features as during learning, i.e., in the same font (P < 0.05). The data indicate that in a task that allows separating the contribution of explicit and implicit memory, sleep particularly supports explicit memory formation. The mechanism of this effect appears to be linked to SWS. PMID:15687230

  16. Going beyond Lecturing by Using Student Web Site Presentations in a Human Sexuality Course

    ERIC Educational Resources Information Center

    Hughes, Jennifer L.

    2008-01-01

    This paper discusses the use of Web site presentations in human sexuality courses. Web site presentations are a good way to incorporate additional information about human sexuality into a course, and they provide a way to learn to critique human sexuality material on the Internet. In addition, they help students to practice presentation skills. A…

  17. Sexual behavior in penguins.

    E-print Network

    Richdale, L. E. (Lancelot Eric)

    1951-01-01

    stream_size 667078 stream_content_type text/plain stream_name upk.sexual_behavior_in_penguins.pdf.txt stream_source_info upk.sexual_behavior_in_penguins.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset=UTF-8... Sexual Behavior in Penguins Sexual Beh avior m Penguins hy L. E. Richdale, MA., H.D.A. Corresponding Fellow of the American Ornithologists' Union; Honorary Lecturer in Zoology, University of Otago, New Zealand University of Kansas Press...

  18. Sexually transmitted proctitis.

    PubMed

    Sigle, Gavin W; Kim, Rebekah

    2015-06-01

    There are many different sexually transmitted infections that can cause proctitis. Recognition of the common symptoms with anoscopic examination is crucial in accurate diagnosis of the pathogen. Clinicians should have a high index of suspicion of more than one inciting pathogen. Treatment should be prompt and extended to sexual partners who have been exposed to the disease. Effective treatment can alleviate the discomfort and potentially serious complications associated with sexually transmitted proctitides. This article illustrates and discusses the clinical presentations, diagnostic pearls, and treatments of sexually transmitted proctitides. PMID:26034402

  19. Michigan Technological University Sexual Assault,

    E-print Network

    means... Sexual Assault Sexual assault is an offense that meets one of these definitions below... Rape other within the degrees wherein marriage is prohibited by law. Statutory Rape. Sexual intercourse

  20. Sexual dysfunction in women with epilepsy

    PubMed Central

    Karan, Vivek; Harsha, S.; Keshava, B. S.; Pradeep, R.; Sathyanarayana Rao, T. S.; Andrade, Chittaranjan

    2015-01-01

    Background: Sexual functioning and variables that influence sexual functioning have not been studied in Indian women with epilepsy. Materials and Methods: In a pilot study, female (age, 18–45 years) outpatients with epilepsy who were in a stable sexual relationship for at least 1-year were screened using the mini international neuropsychiatric interview. Those without anxiety or depressive disorders (n = 60) were studied using the female sexual function index (FSFI; higher scores indicate better functioning). Findings were compared with age- and sex- matched sample of healthy control women drawn from the same sociodemographic population. Results: Women with epilepsy had significantly poorer sexual functioning on all FSFI subscales (desire, arousal, lubrication, orgasm, satisfaction, pain), as well as on the total scale scores, and >70% of these women were rated as dysfunctional on individual FSFI subscales and on the total scale. In multivariate analysis, use of clobazam and phenobarbitone, and longer time after the last seizure were each associated with significantly higher FSFI scores; and longer duration of epilepsy was associated with significantly lower FSFI scores. Conclusion: There is a substantial impairment of sexual functioning in women with epilepsy. This study demonstrates the need for increased awareness of the problem, better case identification, and improved seizure control. PMID:26600586

  1. Sin vergüenza: addressing shame with Latino victims of child sexual abuse and their families.

    PubMed

    Fontes, Lisa Aronson

    2007-01-01

    This article explores shame issues for Latino children who have been sexually abused and their families. Latino cultural concerns around shame that are associated with sexual abuse include: attributions for the abuse, fatalism, virginity, sexual taboos, predictions of a shameful future, revictimization, machismo, and fears of homosexuality for boy victims, and the intersection of shame from sexual abuse with societal discrimination. Quotes and case material are drawn from the author's research and clinical work. The article includes clinical suggestions. PMID:17255077

  2. Does the Effect of Exposure to TV Sex on Adolescent Sexual Behavior Vary by Genre?

    PubMed Central

    Gottfried, Jeffrey A.; Vaala, Sarah E.; Bleakley, Amy; Hennessy, Michael; Jordan, Amy

    2013-01-01

    Using the Integrated Model of Behavioral Prediction, this study examines the effects of exposure to sexual content on television by genre, specifically looking at comedy, drama, cartoon, and reality programs, on adolescents’ sex-related cognitions and behaviors. Additionally, we compared the amount and explicitness of sexual content as well as the frequency of risk and responsibility messages in these four genres. Findings show that overall exposure to sexual content on television was not related to teens’ engagement in sexual intercourse the following year. When examined by genre, exposure to sexual content in comedies was positively associated while exposure to sexual content in dramas was negatively associated with attitudes regarding sex, perceived normative pressure, intentions, and engaging in sex one year later. Implications of adolescent exposure to various types of content and for using genre categories to examine exposure and effects are discussed. PMID:24187395

  3. Sexual Dysfunction and Infertility

    MedlinePLUS

    ... to have sex), arousal (your body undergoes the physical changes that allow you to have sex), and orgasm. ... treat sexual dysfunction? Your doctor will do a physical exam and ask you questions about your medical and sexual history. Important chemicals in your body, called hormones, affect your interest ...

  4. Sexuality, Power, and Politics.

    ERIC Educational Resources Information Center

    Hartsock, Nancy C. M.

    The source of contemporary attitudes toward sexuality, power, and politics is found in the literature of the ancient Greeks, specifically, Plato's "Republic" and "Symposium," Aristotle's "Politics," and the plays of Aeschylus and Aristophanes. The "Symposium" can be read as an account of how sexuality can be incorporated into the public life of…

  5. Sexual Harassment in Nursing.

    ERIC Educational Resources Information Center

    Duldt, Bonnie W.

    1982-01-01

    Sexual harassment in the workplace, specifically in nursing, is discussed. The impact of sexual harassment, characteristics of those commonly involved, the need for changing attitudes of men and women in the workplace, the factor of power in relationships, and ways to avoid legal suits are all examined. (CT)

  6. Human Sexuality Education Program.

    ERIC Educational Resources Information Center

    Claremont Univ. Center, CA.

    This program provides information to students about human sexual biology, behavior and attitudes. The primary intent of the workshops described is to provide fuller information and opportunity for self awareness to encourage participants to be more responsible as sexual beings, and to restructure their attitudes. The program presents the…

  7. Maternal Sexuality and Breastfeeding

    ERIC Educational Resources Information Center

    Bartlett, Alison

    2005-01-01

    In this paper I consider the ways in which lactation has been discussed as a form of maternal sexuality, and the implications this carries for our understanding of breastfeeding practices and sexuality. Drawing on knowledge constructed in the western world during the last half of the twentieth century, the paper identifies a shift between the…

  8. Death after Sexual Intercourse

    PubMed Central

    Braun, Christian T.; Ricklin, Meret E.; Pauli, Andreina; Ott, Daniel; Exadaktylos, Aristomenis K.; Pfortmueller, Carmen A.

    2015-01-01

    Sexuality is an essential aspect of quality of life. Nevertheless, sexual intercourse is physically challenging and leads to distinct changes in blood pressure, heart, and respiratory rate that may lead to vital complications. We present a case report of a 22-year-old female suffering from subarachnoid hemorrhage after sexual intercourse. The patient was immediately transported to hospital by emergency medical services and, after diagnosis, transferred to a tertiary hospital with neurosurgical expertise but died within 24?hours. After postcoital headaches, subarachnoid hemorrhage is the second most common cause of neurological complications of sexual intercourse and therefore patients admitted to an emergency department with headache after sexual intercourse should always be carefully evaluated by cerebral imaging. PMID:26697238

  9. ORIGINAL PAPER Reported Sexual Desire Predicts Men's Preferences for Sexually

    E-print Network

    Little, Tony

    investigating the relationship between sexual desire and sexual attraction have found that heterosexual women's reported sexual desire is positively cor- related with their reported attraction to both own- and opposite with their reported attraction to opposite-sex individuals only. These findings have led to the proposal that sexual

  10. Outcomes of Sexual Behaviors among Sexual Minority Youth

    ERIC Educational Resources Information Center

    Morgan, Elizabeth M.

    2014-01-01

    Very little is known about outcomes of sexual behavior for sexual minority youth. In this chapter, I review relevant literature and draw on findings from my own research to initiate an inquiry into this important topic. I begin with a brief overview of the range of sexual behaviors of sexual minority adolescents and young adults. Next, I describe…

  11. Polymorphism in sexual versus non-sexual disease transmission

    E-print Network

    Antonovics, Janis

    transmitted diseases (STDs) often consist of related strains that cause non- sexually transmitted transmission modes. For example, out of 108 sexually transmitted diseases (STDs) for which reasonable estimatesPolymorphism in sexual versus non-sexual disease transmission PETER H. THRALL AND JANIS ANTONOVICS

  12. Interaction of media, sexual activity and academic achievement in adolescents

    PubMed Central

    Shashi Kumar, R.; Das, R.C.; Prabhu, H.R.A.; Bhat, P.S.; Prakash, Jyoti; Seema, P.; Basannar, D.R.

    2012-01-01

    Background Adolescence is a period when the individual is vulnerable and exposure to sexually implicit/explicit programs on television and internet can influence their sexual behaviour and make them more permissive towards premarital sex, which is known to influence their academic performance. This can be modified by parental discussion on these matters with their children. There have been only few studies from India that have explored such issues therefore this study aimed to explore the impact of television, internet and parental discussion on sexual activity and academic performance. Methods This study was conducted in two co-education schools using a self reporting questionnaire administered to students of class IX–XII. This study evaluated the relation of academic performance, exposure to media such as television & internet to sexual activity & academic performance of the students and the role of parental discussion on these. Results The study sample size was 586. There is no significant association between the number of hours of watching television per day and academic performance as measured by marks in examinations. Significant positive association was found among boys between sexual contact and average score in academics & unsupervised use of internet. In both genders a significant positive association was found between those watching English serials, movies and increased chances of indulging in sexual activity while a negative relation with those watching Cartoons. There is no significant difference in occurrence of sexual contact in those who discussed sexual matters with parents and those who did not. Conclusion This being first of it's kind of study from India and a cross sectional study, further prospective and detailed studies are warranted to delineate the interaction of media, parental discussion, academic performance and sexual activity. PMID:24600087

  13. Explicit Determination of Piezoelectric Eshelby Tensors for a Spheroidal Inclusion

    SciTech Connect

    Yozo Mikata

    2001-06-21

    In this paper, by systematically treating the integrals involved in the piezoelectric inclusion problem, explicit results were obtained for the piezoelectric Eshelby tensors for a spheroidal inclusion aligned along the axis of the anisotropy in a transversely isotropic piezoelectric material. This problem was first treated by Dunn and Wienecke (1996) using a Green's function approach, which closely follows Withers' approach (1989) for an ellipsoidal inclusion problem in a transversely isotropic elastic medium. The same problem was recently treated by Michelitsch and Levin (2000) also using a Green's function approach. In this paper, a different method was used to obtain the explicit results for the piezoelectric Eshelby tensors for a spheroidal inclusion. The method is a direct extension of a more unified approach, which has been recently developed by Mikata (2000), which is based on Deeg's results (1980) on a piezoelectric inclusion problem. The main advantage of this method is that it is more straightforward and simpler than Dunn and Wienecke (1996), or Michelitsch and Levin (2000), and the results are a little bit more explicit than their solutions. The key step of this paper is an analytical closed form evaluation of several integrals, which was made possible after a careful treatment of a certain bi-cubic equation.

  14. Human Sexuality: Responsible Life Choices.

    ERIC Educational Resources Information Center

    Ryder, Verdene; Smith, Peggy B.

    This book provides a complete course in human sexuality. It can also be used to supplement a family living course. Text content provides current information for teaching high school students about sexuality issues. The text offers basic information on growth and development, sexual development, pregnancy, and birth. It explains the sexual decision…

  15. Sexual activity and sleep in humans.

    PubMed

    Brissette, S; Montplaisir, J; Godbout, R; Lavoisier, P

    1985-07-01

    Polysomnographic recordings were obtained in 10 subjects (5 men and 5 women) for three conditions: following masturbation with orgasm, following masturbation without orgasm, and after reading neutral material. The analysis of several sleep parameters did not reveal any effect of masturbation on sleep. These results suggest that physiological changes that occur during masturbation, with or without orgasm, have no major effect on sleep organization. Other factors associated with sexual activity and potentially responsible for sleepiness after orgasm are discussed, and further strategies to study the interrelationship of sexual activity and sleep are proposed. PMID:4005334

  16. Children's Tacit and Explicit Understandings of Dinosaurs.

    ERIC Educational Resources Information Center

    Barba, Robertta H.

    The purpose of this cross-age study was to investigate elementary students' (N=120) tacit and explicit understandings of dinosaurs. Detailed analysis of audiotaped interviews of children's performance during a Piagetian-type clinical interview suggests that children's conceptual understandings of dinosaurs are first developed at a tacit level from…

  17. ECO 202: Explicit Expressions of Ecological Protection

    EPA Science Inventory

    A critical early step in conducting an ecological risk assessment is deciding explicitly which aspects of the environment will be selected for evaluation. This step is often challenging; for example, because of the remarkable diversity of species, ecological communities and ecol...

  18. From Asking to Answering: Making Questions Explicit

    ERIC Educational Resources Information Center

    Washington, Gene

    2006-01-01

    "From Asking To Answering: Making Questions Explicit" describes a pedagogical procedure the author has used in writing classes (expository, technical and creative) to help students better understand the purpose, and effect, of text-questions. It accomplishes this by means of thirteen discrete categories (e.g., CLAIMS, COMMITMENT, ANAPHORA, or…

  19. Explicit Instruction Elements in Core Reading Programs

    ERIC Educational Resources Information Center

    Child, Angela R.

    2012-01-01

    Classroom teachers are provided instructional recommendations for teaching reading from their adopted core reading programs (CRPs). Explicit instruction elements or what is also called instructional moves, including direct explanation, modeling, guided practice, independent practice, discussion, feedback, and monitoring, were examined within CRP…

  20. The Impact of Individualized Explicit Fluency Instruction

    ERIC Educational Resources Information Center

    Morra, Jennifer; Tracey, Diane H.

    2006-01-01

    The effectiveness of explicit fluency interventions, with decoding instruction as needed, on a single subject in grade three was investigated. Fluency interventions, including choral reading, echo reading, repeated reading, audio book modeling, and teacher modeling, were conducted over a period of 8 weeks. Results indicated that using manageable…

  1. EXPLICIT SYMPLECTIC INTEGRATORS USING HESSIANVECTOR PRODUCTS

    E-print Network

    Skeel, Robert

    is highly competitive. Here we explore the possible existence of even more efficient fourth-order explicit CR subject classification. G.1.3 PII. S104827595288085 1. Introduction. There is much interest it is unnecessary to resolve all the details of the solution, for example, in molecular dynamics and galaxy

  2. Sleep Enhances Explicit Recollection in Recognition Memory

    ERIC Educational Resources Information Center

    Drosopoulos, Spyridon; Wagner, Ullrich; Born, Jan

    2005-01-01

    Recognition memory is considered to be supported by two different memory processes, i.e., the explicit recollection of information about a previous event and an implicit process of recognition based on a contextual sense of familiarity. Both types of memory supposedly rely on distinct memory systems. Sleep is known to enhance the consolidation of…

  3. Detective magazines: pornography for the sexual sadist?

    PubMed

    Dietz, P E; Harry, B; Hazelwood, R R

    1986-01-01

    The origins of detective magazines can be traced to 17th and 18th century crime pamphlets and to 19th century periodicals that Lombroso called "really criminal newspapers." Content analysis of current detective magazines shows that their covers juxtapose erotic images with images of violence, bondage, and domination; that their articles provide lurid descriptions of murder, rape, and torture; and that they publish advertisements for weapons, burglary and car theft tools, false identification, and sexual aids. Six case histories of sexual sadists illustrate the use of these magazines as a source of fantasy material. We postulate that detective magazines may contribute to the development of sexual sadism, facilitate sadistic fantasies, and serve as training manuals and equipment catalogs for criminals. We recommend that detective magazines be considered during policy debates about media violence and pornography. PMID:3511174

  4. Sexually Transmitted Infections

    MedlinePLUS

    ... D., M.P.H., FACOG, Commander, U.S. Public Health Service Commissioned Corps, Medical Officer, Sexually Transmitted Diseases Branch, Division of Microbiology and Infectious Diseases,National Institute of Allergy and ...

  5. Sexual Counseling and Therapy

    ERIC Educational Resources Information Center

    Hoch, Zwi

    1976-01-01

    The Ob/Gyn Department of Rambam University, Haifa, Israel, recently established a Center for Sexual Counseling, Therapy and Education. The Center's concept and format of therapy, and some preliminary observations, are presented. (Author)

  6. Sexuality and Dementia

    MedlinePLUS

    Sexuality and Dementia Printer-friendly version Coping with Changes in Your Intimate Relationship How has your relationship with your partner changed ... said Jerry, who cared for his wife with dementia. At a recent conference of the Caregiver Resource ...

  7. Sexually Transmitted Diseases

    MedlinePLUS

    Sexually transmitted diseases (STDs) are infections that you can get from having sex with someone who has the infection. The causes ... is no cure. Sometimes medicines can keep the disease under control. Correct usage of latex condoms greatly ...

  8. Understanding Sexual Violence

    MedlinePLUS

    ... and peeping. Other SV, including unwanted touching and rape, includes physical contact. Why is sexual violence a ... United States have experienced an attempted or complete rape during their college career. 2 • Nearly 1 in ...

  9. Understanding Sexual Violence

    MedlinePLUS

    ... prevent sexual violence, we need to know how big the problem is, where it is, and who it affects. CDC learns about a problem by gathering and studying data. These data are critical because they help us ...

  10. Rape (sexual assault) - overview

    MedlinePLUS

    Sex and rape; Date rape; Sexual assault ... Rape may occur between members of the same sex. This is more common in places such as prisons, military settings, and single-sex schools. People with physical or mental disabilities or ...

  11. Sexuality and Intellectual Disability

    MedlinePLUS

    ... or developmental disabilities have been thought to be asexual, having no need for loving and fulfilling relationships ... decision-making, including education about such issues as reproduction, marriage and family life, abstinence, safe sexual practices, ...

  12. Theories of Sexual Orientation.

    ERIC Educational Resources Information Center

    Storms, Michael D.

    1980-01-01

    Results indicated homosexuals, heterosexuals, and bisexuals did not differ within each sex on measures of masculinity and femininity. Strong support was obtained for the hypothesis that sexual orientation relates primarily to erotic fantasy orientation. (Author/DB)

  13. FAQ: Child Sexual Exploitation

    MedlinePLUS

    ... Support FAQ: Child Sexual Exploitation What is child pornography? Federal law (18 U.S.C. §2256(8)) defines ... person under the age of 18. Is child pornography a crime? It is a federal crime to ...

  14. Men and Sexual Trauma

    MedlinePLUS

    ... Topic Finder My Health e Vet Prescriptions Refills Crisis Prevention Mental Health PTSD Public Health Benefits General ... about sexual assault and men. A local rape crisis center may be able to refer men to ...

  15. Sexual Abuse of Children.

    ERIC Educational Resources Information Center

    Csapo, Marg

    1988-01-01

    Canadian reports and legislation are reviewed to highlight the school's role in prevention and reporting of suspicions of child sexual abuse. The vulnerability of handicapped children and child pornography are two areas of victimization emphasized. (Author/DB)

  16. Prevalence of Sexual Dysfunctions

    PubMed Central

    Simons, Jeffrey; Carey, Michael P.

    2008-01-01

    Ten years of research that has provided data regarding the prevalence of sexual dysfunctions is reviewed. A thorough review of the literature identified 52 studies that have been published in the 10 years since an earlier review by Spector and Carey (1990). Community samples indicate a current prevalence of 0 - 3% for male orgasmic disorder, 0 - 5% for erectile disorder, and 0 - 3% for male hypoactive sexual desire disorder. Pooling current and 1-year figures provides community prevalence estimates of 7 - 10% for female orgasmic disorder and 4 - 5% for premature ejaculation. Stable community estimates of the current prevalence for the other sexual dysfunctions remain unavailable. Prevalence estimates obtained from primary care and sexuality clinic samples are characteristically higher. Although a relatively large number of studies have been conducted since Spector and Carey’s (1990) review, the lack of methodological rigor of many studies limits the confidence that can be placed in these findings. PMID:11329727

  17. Sexual disorders among elderly: An epidemiological study in south Indian rural population

    PubMed Central

    Sathyanarayana Rao, T. S.; Ismail, Shajahan; Darshan, M. S.; Tandon, Abhinav

    2015-01-01

    Background: Realizing a dearth of data on this topic, especially in the Indian context, an epidemiological study was conducted in a south Indian rural population to identify the sexual activity patterns and sexual problems among the population above 60 years of age. Objectives: (1) Assessment of sexual activity patterns among individuals above 60 years. (2) Assessment of the prevalence of sexual disorders among individuals above 60 years. Materials and Methods: The study sample consisted of 259 participants, which included both males and females above 60 years of age. Subjects who were sexually active and fulfilled the study criteria were administered Arizona Sexual Experience Scale as a screening tool, for the presence of sexual problems. Those who were found to have sexual problems were interviewed further using appropriate questionnaires. Results: Only 27.4% of the individuals above 60 years were sexually active, and it progressively dropped as age advanced and none were sexually active after 75 years of age. Among the sexually active males, erectile dysfunction (ED) was prevalent in 43.5%, premature ejaculation in 10.9%, hypoactive sexual desire disorder (HSSD) in 0.77% and anorgasmia in 0.38% of the subjects. Among females, arousal disorder was prevalent in 28%, HSSD in 16%, anorgasmia in 20% and dyspareunia in 8% of the subjects. Conclusion: The study gives us an insight into the sexual problems of the elderly and brings home the point that sexual problems are very much common among both men and women in the older population. Among elderly males, ED is the most common sexual disorder whereas in elderly females, arousal disorder is the most prevalent female sexual dysfunction, implicating biology plays an important role in men, whereas psychology plays an important role in women sexual functioning. PMID:26600575

  18. Scalar relativistic explicitly correlated R12 methods.

    PubMed

    Bischoff, Florian A; Valeev, Edward F; Klopper, Wim; Janssen, Curtis L

    2010-06-01

    Combinations of explicitly correlated R12 wave functions with relativistic Douglas-Kroll-Hess (DKH) Hamiltonians are discussed. We considered several ways to incorporate the relativistic terms into the second-order Moller-Plesset R12 method and applied them to the helium isoelectronic series to investigate their accuracy and numerical stability. Among the approaches are the evaluation of the relativistic terms via double resolution-of-the-identity and the explicit evaluation of all terms up to O(c(-4)) using the Pauli Hamiltonian. Numerical collapse of the latter can be avoided if the R12 amplitudes are determined by Kato's cusp condition. Closed formulas for new two-electron integrals that include the mass-velocity term have been derived and implemented into the LIBINT2 integral library. The proposed approaches are not restricted to DKH and can be combined with other one- and two-component relativistic Hamiltonians. PMID:20528015

  19. EXPECT: Explicit Representations for Flexible Acquisition

    NASA Technical Reports Server (NTRS)

    Swartout, BIll; Gil, Yolanda

    1995-01-01

    To create more powerful knowledge acquisition systems, we not only need better acquisition tools, but we need to change the architecture of the knowledge based systems we create so that their structure will provide better support for acquisition. Current acquisition tools permit users to modify factual knowledge but they provide limited support for modifying problem solving knowledge. In this paper, the authors argue that this limitation (and others) stem from the use of incomplete models of problem-solving knowledge and inflexible specification of the interdependencies between problem-solving and factual knowledge. We describe the EXPECT architecture which addresses these problems by providing an explicit representation for problem-solving knowledge and intent. Using this more explicit representation, EXPECT can automatically derive the interdependencies between problem-solving and factual knowledge. By deriving these interdependencies from the structure of the knowledge-based system itself EXPECT supports more flexible and powerful knowledge acquisition.

  20. Implicit and explicit prejudice and interracial interaction.

    PubMed

    Dovidio, John F; Kawakami, Kerry; Gaertner, Samuel L

    2002-01-01

    The present research examined how implicit racial associations and explicit racial attitudes of Whites relate to behaviors and impressions in interracial interactions. Specifically, the authors examined how response latency and self-report measures predicted bias and perceptions of bias in verbal and nonverbal behavior exhibited by Whites while they interacted with a Black partner. As predicted, Whites' self-reported racial attitudes significantly predicted bias in their verbal behavior to Black relative to White confederates. Furthermore, these explicit attitudes predicted how much friendlier Whites felt that they behaved toward White than Black partners. In contrast, the response latency measure significantly predicted Whites' nonverbal friendliness and the extent to which the confederates and observers perceived bias in the participants' friendliness. PMID:11811635

  1. Floating Bodies of Equilibrium. Explicit Solution

    E-print Network

    Franz Wegner

    2006-09-08

    Explicit solutions of the two-dimensional floating body problem (bodies that can float in all positions) for relative density rho different from 1/2 and of the tire track problem (tire tracks of a bicycle, which do not allow to determine, which way the bicycle went) are given, which differ from circles. Starting point is the differential equation given in archive physics/0205059 and Studies in Appl. Math. 111 (2003) 167-183.

  2. Evaluation of sexual dysfunction in women with type 2 diabetes

    PubMed Central

    Vafaeimanesh, Jamshid; Raei, Mehdi; Hosseinzadeh, Fatemeh; Parham, Mahmoud

    2014-01-01

    Background: Sexual dysfunction is a common complication of diabetes that adversely affects their quality of life. Its prevalence is known to be higher in diabetic men with and it is estimated to affect 20-85% of patients but the problem is probably less common in diabetic women. This study investigated the prevalence of sexual dysfunction and its risk factors among women with diabetes. Materials and Methods: This descriptive-analytic study was performed during May 2012 to Feb 2013 at Diabetes clinic of Shahid Beheshti Hospital of Qom and The Female Sexual Function Index (FSFI) was used for evaluation of sexual dysfunction. Conclusion: In this study, 59 (53.6%) women had sexual dysfunction. The mean age of patients with sexual dysfunction and healthy people was 48.22 ± 6.61 and 48.14 ± 5.37 years respectively and it was not statistically different in both groups (P = 0.94). Also, there was no significant difference between two groups in average duration of diabetes, fasting blood sugar (FBS), glycosylated hemoglobin (HbA1c) level, insulin resistance, abdominal circumference and body mass index BMI. Although the history of hypertension, coronary artery disease and exercise levels were not significantly associated with sexual dysfunction, but there was a significant association between albuminuria and sexual dysfunction (P = 0.001). Retinopathy and sexual dysfunction had statistically significant relationship (P = 0.007) while no association was found between diabetic neuropathy and sexual dysfunction (P = 0.79). Results: Sexual dysfunction is a common complication in diabetic patients which accompanies with some complications of diabetes and should be considered especially in patients with nephropathy or retinopathy. PMID:24741512

  3. Understanding differences in sexting behaviors across gender, relationship status, and sexual identity, and the role of expectancies in sexting.

    PubMed

    Dir, Allyson L; Coskunpinar, Ayca; Steiner, Jennifer L; Cyders, Melissa A

    2013-08-01

    Sexting, or the exchange of sexually explicit material via Internet social-networking site or mobile phone, is an increasingly prevalent behavior. The study sought to (1) identify expectancies regarding sexting behaviors, (2) examine how demographics (i.e., gender, sexual identity, relationship status) might be differentially related to sexting expectancies and behaviors, and (3) examine whether these concurrent relationships are consistent with a theoretical causal model in which sexting expectancies influence sexting behaviors. The sample consisted of 278 undergraduate students (mean age=21.0 years, SD=4.56; 53.8% female; 76.3% caucasian). Factor analyses supported the validity and reliability of the Sextpectancies Measure (?=0.85-0.93 across subscales) and indicated two expectancy domains each for both sending and receiving sexts: positive expectancies (sexual-related and affect-related) and negative expectancies. Males reported stronger positive expectancies (F=4.64, p=0.03) while females reported stronger negative expectancies (F=6.11, p=0.01) about receiving sexts. There were also differences across relationship status regarding negative expectancies (F=2.25, p=0.05 for sending; F=4.24, p=0.002 for receiving). There were also significant effects of positive (F=45.98, p<0.001 for sending, F=22.42, p<0.001 for receiving) and negative expectancies (F=36.65, p=0.02 sending, F=14.41, p<0.001 receiving) on sexting behaviors (?(2) from 0.04-0.13). College students reported both positive and negative sextpectancies, although sextpectancies and sexting varied significantly across gender, race, sexual identity, and relationship status. Concurrent relationships were consistent with the causal model of sextpectancies influencing sexting behaviors, and this study serves as the first test of this model, which could inform future prevention strategies to mitigate sexting risks. PMID:23675996

  4. Age effects on explicit and implicit memory

    PubMed Central

    Ward, Emma V.; Berry, Christopher J.; Shanks, David R.

    2013-01-01

    It is well-documented that explicit memory (e.g., recognition) declines with age. In contrast, many argue that implicit memory (e.g., priming) is preserved in healthy aging. For example, priming on tasks such as perceptual identification is often not statistically different in groups of young and older adults. Such observations are commonly taken as evidence for distinct explicit and implicit learning/memory systems. In this article we discuss several lines of evidence that challenge this view. We describe how patterns of differential age-related decline may arise from differences in the ways in which the two forms of memory are commonly measured, and review recent research suggesting that under improved measurement methods, implicit memory is not age-invariant. Formal computational models are of considerable utility in revealing the nature of underlying systems. We report the results of applying single and multiple-systems models to data on age effects in implicit and explicit memory. Model comparison clearly favors the single-system view. Implications for the memory systems debate are discussed. PMID:24065942

  5. Implicit and Explicit Spacecraft Gyro Calibration

    NASA Technical Reports Server (NTRS)

    Bar-Itzhack, Itzhack Y.; Harman, Richard R.

    2004-01-01

    This paper presents a comparison between two approaches to sensor calibration. According to one approach, called explicit, an estimator compares the sensor readings to reference readings, and uses the difference between the two to estimate the calibration parameters. According to the other approach, called implicit, the sensor error is integrated to form a different entity, which is then compared with a reference quantity of this entity, and the calibration parameters are inferred from the difference. In particular this paper presents the comparison between these approaches when applied to in-flight spacecraft gyro calibration. Reference spacecraft rate is needed for gyro calibration when using the explicit approach; however, such reference rates are not readily available for in-flight calibration. Therefore the calibration parameter-estimator is expanded to include the estimation of that reference rate, which is based on attitude measurements in the form of attitude-quaternion. A comparison between the two approaches is made using simulated data. It is concluded that the performances of the two approaches are basically comparable. Sensitivity tests indicate that the explicit filter results are essentially insensitive to variations in given spacecraft dynamics model parameters.

  6. Efficient additive kernels via explicit feature maps.

    PubMed

    Vedaldi, Andrea; Zisserman, Andrew

    2012-03-01

    Large scale nonlinear support vector machines (SVMs) can be approximated by linear ones using a suitable feature map. The linear SVMs are in general much faster to learn and evaluate (test) than the original nonlinear SVMs. This work introduces explicit feature maps for the additive class of kernels, such as the intersection, Hellinger's, and ?2 kernels, commonly used in computer vision, and enables their use in large scale problems. In particular, we: 1) provide explicit feature maps for all additive homogeneous kernels along with closed form expression for all common kernels; 2) derive corresponding approximate finite-dimensional feature maps based on a spectral analysis; and 3) quantify the error of the approximation, showing that the error is independent of the data dimension and decays exponentially fast with the approximation order for selected kernels such as ?2. We demonstrate that the approximations have indistinguishable performance from the full kernels yet greatly reduce the train/test times of SVMs. We also compare with two other approximation methods: Nystrom's approximation of Perronnin et al., which is data dependent, and the explicit map of Maji and Berg for the intersection kernel, which, as in the case of our approximations, is data independent. The approximations are evaluated on a number of standard data sets, including Caltech-101, Daimler-Chrysler pedestrians, and INRIA pedestrians. PMID:21808094

  7. A Resource Guide for Signs of Sexual Assault. A Supplement to: Preventing Sexual Abuse of Persons with Disabilities: A Curriculum for Hearing Impaired, Physically Disabled, Blind and Mentally Retarded Students.

    ERIC Educational Resources Information Center

    O'Day, Bonnie

    Part of a curriculum unit on preventing sexual abuse of persons with disabilities, the manual is intended to help instructors present the material to hearing impaired students. Illustrations of sign language are presented for such terms as sexual contact, sexual assault, incest, same sex assault (man/woman), rape (acquaintance/marital), exposer,…

  8. Sexual functioning and sexual satisfaction among women who report a history of childhood and/or adolescent sexual abuse.

    PubMed

    Leonard, Leah M; Iverson, Katherine M; Follette, Victoria M

    2008-01-01

    This study examined the relationship between sexual functioning, sexual satisfaction, and predictor variables (experiential avoidance, relationship violence, relationship satisfaction, anger, and psychological distress) in 22 women reporting a history of childhood and/or adolescent sexual abuse. Sexual satisfaction correlated significantly with all predictor variables. Sexual functioning correlated significantly with relationship violence only. Interestingly, sexual satisfaction and sexual functioning were not significantly correlated. Two hierarchical regression equations, using sexual satisfaction and sexual functioning as dependent variables and using the same predictor variables, were tested. Results suggest that different factors may account for sexual satisfaction and sexual functioning and more research is needed to clarify this relationship. PMID:18770109

  9. [Pornography and sexual abuse in the Internet].

    PubMed

    Hill, Andreas; Briken, P; Berner, W

    2007-01-01

    Internet pornography has been regarded as either stimulating sexual aggression and abuse or as serving as a safety valve. This controversy is an important issue in health, media and legal politics. According to empirical studies on pornography in general, soft-core pornography and nonviolent pornography can be regarded as harmless, whereas non-violent hard-core pornography and violent pornography may increase aggression. Individuals with a high risk for sexual aggression show more interest in violent pornography and are stimulated more strongly through such material. Two case histories illustrate the characteristics of internet pornography and "cybersex": easy access, anonymity, affordability, wide range and deviation of the material, unlimited market, blurring the borders between consumer and producer, interactive communication, space for experimenting between fantasy and in real-life behavior, virtual identities, easy contact between offender and victim or among offenders, and low risk of apprehension. The phenomenon of "sexual addiction" (or paraphilia- related disorder) is particularly relevant for the problematic use of internet pornography. Preventive measures to protect possible victims are presented as well as treatment strategies for offenders. Beside limiting access to the internet, these include therapy of comorbid psychiatric disorders and psychological problems (social isolation, bereavement, stress- and anger-management, guilt and shame, childhood traumata, cognitive distortion, victim empathy), psychopharmacotherapy and the enhancement of a more integrative and relationship-oriented sexuality. PMID:17177094

  10. Is pedophilia a sexual orientation?

    PubMed

    Seto, Michael C

    2012-02-01

    In this article, I address the question of whether pedophilia in men can be construed as a male sexual orientation, and the implications for thinking of it in this way for scientific research, clinical practice, and public policy. I begin by defining pedophilia and sexual orientation, and then compare pedophilia (as a potential sexual orientation with regard to age) to sexual orientations with regard to gender (heterosexuality, bisexuality, and homosexuality), on the bases of age of onset, correlations with sexual and romantic behavior, and stability over time. I conclude with comments about the potential social and legal implications of conceptualizing pedophilia as a type of sexual orientation in males. PMID:22218786

  11. Beyond sex allocation: the role of mating systems in sexual selection in parasitoid wasps

    PubMed Central

    Boulton, Rebecca A; Collins, Laura A; Shuker, David M

    2015-01-01

    Despite the diverse array of mating systems and life histories which characterise the parasitic Hymenoptera, sexual selection and sexual conflict in this taxon have been somewhat overlooked. For instance, parasitoid mating systems have typically been studied in terms of how mating structure affects sex allocation. In the past decade, however, some studies have sought to address sexual selection in the parasitoid wasps more explicitly and found that, despite the lack of obvious secondary sexual traits, sexual selection has the potential to shape a range of aspects of parasitoid reproductive behaviour and ecology. Moreover, various characteristics fundamental to the parasitoid way of life may provide innovative new ways to investigate different processes of sexual selection. The overall aim of this review therefore is to re-examine parasitoid biology with sexual selection in mind, for both parasitoid biologists and also researchers interested in sexual selection and the evolution of mating systems more generally. We will consider aspects of particular relevance that have already been well studied including local mating structure, sex allocation and sperm depletion. We go on to review what we already know about sexual selection in the parasitoid wasps and highlight areas which may prove fruitful for further investigation. In particular, sperm depletion and the costs of inbreeding under chromosomal sex determination provide novel opportunities for testing the role of direct and indirect benefits for the evolution of mate choice. PMID:24981603

  12. Sexual Desire and the Female Sexual Function Index (FSFI): A Sexual Desire Cutpoint for Clinical Interpretation of the FSFI

    E-print Network

    Meston, Cindy

    Sexual Desire and the Female Sexual Function Index (FSFI): A Sexual Desire Cutpoint for Clinical T Introduction. A validated cutpoint for the total Female Sexual Function Index scale score exists to classify, Rosen RC, Brewer JV, Meston CM, Brotto LA, Wiegel M, and Sand M. Sexual desire and the female sexual

  13. If you have experienced sexual harassment, sexual assault,

    E-print Network

    and Counseling YWCA Rape Crisis Hotline and non-emergency assistance related to sexual assault Barnes LGBT Crisis Intervention and Suicide Prevention SARAH Sexual Assault and Rape Anonymous Helpline (314

  14. Policy on Sexual Harassment Policy on Sexual Harassment

    E-print Network

    Sridhar, Srinivas

    , hostile or offensive environment for that individual's employment, education, benefits, housing, offensive, intimidating, or humiliating to male or female workers may also constitute sexual harassment advances ­ whether they involve physical touching or not; Sexual epithets, jokes, written or oral

  15. The Impact of Sexual Orientation on Sexuality and Sexual Practices in North American Medical Students

    PubMed Central

    Breyer, Benjamin N.; Smith, James F.; Eisenberg, Michael L.; Ando, Kathryn A.; Rowen, Tami S.; Shindel, Alan W.

    2013-01-01

    Introduction There has been limited investigation of the sexuality and sexual dysfunction in non-heterosexual subjects by the sexual medicine community. Additional research in these populations is needed. Aims To investigate and compare sexuality and sexual function in students of varying sexual orientations. Methods An internet-based survey on sexuality was administered to medical students in North American between the months of February and July of 2008. Main Outcome Measures All subjects provided information on their ethnodemographic characteristics, sexual orientation, and sexual history. Subjects also completed a series of widely-utilized instruments for the assessment of human sexuality (International Index of Erectile Function [IIEF], Female Sexual Function Index [FSFI], Premature Ejaculation Diagnostic Tool [PEDT], Index of Sex Life [ISL]). Results There were 2,276 completed responses to the question on sexual orientation. 13.2% of male respondents and 4.7% of female respondents reported a homosexual orientation; 2.5% of male and 5.7% of female respondents reported a bisexual orientation. Many heterosexual males and females reported same-sex sexual experiences (4% and 10%, respectively). Opposite-sex experiences were very common in the male and female homosexual population (37% and 44%, respectively). The prevalence of premature ejaculation (PEDT > 8) was similar among heterosexual and homosexual men (16% and 17%, P = 0.7, respectively). Erectile dysfunction (IIEF-EF < 26) was more common in homosexual men relative to heterosexual men (24% vs. 12%, P = 0.02). High risk for female sexual dysfunction (FSFI < 26.55) was more common in heterosexual and bisexual women compared with lesbians (51%, 45%, and 29%, respectively, P = 0.005). Conclusion In this survey of highly educated young professionals, numerous similarities and some important differences in sexuality and sexual function were noted based on sexual orientation. It is unclear whether the dissimilarities represent differing relative prevalence of sexual problems or discrepancies in patterns of sex behavior and interpretation of the survey questions. PMID:20384941

  16. Psychiatric disorders and sexual dysfunction.

    PubMed

    Waldinger, Marcel D

    2015-01-01

    Sexual problems are highly prevalent among patients with psychiatric disorders. They may be caused by the psychopathology of the psychiatric disorder but also by its pharmacotherapy. Both positive symptoms (e.g., psychosis, hallucinations) as well as negative symptoms (e.g., anhedonia) of schizophrenia may negatively interfere with interpersonal and sexual relationships. Atypical antipsychotics have fewer sexual side-effects than the classic antipsychotics. Mood disorders may affect libido, sexual arousal, orgasm, and erectile function. With the exception of bupropion, agomelatine, mirtazapine, vortioxetine, amineptine, and moclobemide, all antidepressants cause sexual side-effects. Selective serotonin reuptake inhibitors (SSRIs) may particularly delay ejaculation and female orgasm, but also can cause decreased libido and erectile difficulties. SSRI-induced sexual side-effects are dose-dependent and reversible. Very rarely, their sexual side-effects persist after SSRI discontinuation. This is often preceded by genital anesthesia. Some personality characteristics are a risk factor for sexual dysfunction. Also patients with eating disorders may suffer from sexual difficulties. So far, research into psychotropic-induced sexual side-effects suffers from substantial methodologic limitations. Patients tend not to talk with their clinician about their sexual life. Psychiatrists and other doctors need to take the initiative to talk about the patient's sexual life in order to become informed about potential medication-induced sexual difficulties. PMID:26003261

  17. An epidemiological study of sexual disorders in south Indian rural population

    PubMed Central

    Sathyanarayana Rao, T. S.; Darshan, M. S.; Tandon, Abhinav

    2015-01-01

    Background: Sexuality is an important aspect of the personality of an individual and influences psychological, physical and social well-being of both men and women. It is a paradox, that in the country where ‘kamasutra’ (by Vatsyayana) took birth, there is a lack of research publications and sexuality related literature; hence the current study was conducted, to estimate the prevalence and association of sexual disorders with various socio-demographic variables, in the selected rural population. Materials and Methods: Subjects who were sexually active and fulfilled the study criteria were administered Arizona Sexual Experience Scale as screening tool for the presence of sexual problems. Those who were found to be having sexual problems were interviewed further using appropriate questionnaires. Results: 21.15% of the male subjects were diagnosed to have one (or more) sexual disorder. Prevalence of erectile dysfunction was found to be 15.77%, male hypoactive sexual desire disorder (HSDD) 2.56%; premature ejaculation was found to be prevalent in 8.76% of the male subjects. Around 14% of the female subjects were diagnosed to have female sexual disorders. Prevalence of female arousal dysfunction was found to be 6.65%, female HSDD 8.87%, female anorgasmia 5.67%, female dyspareunia 2.34% and female sexual aversion disorder was found to be prevalent in 0.37% of the female subjects. Conclusion: This study concluded that one in five males and one in seven females were suffering from one (or more) sexual disorder. Improving the training of undergraduate medical and nursing students in sexuality related issues, increasing trained individuals in sexual medicine by starting new courses, providing sex education to the general population using media and merging sexual health care with primary care, are likely to play a significant role in addressing the increasing sexual health morbidity. PMID:26124520

  18. Sexually acquired hepatitis

    PubMed Central

    Brook, M

    2002-01-01

    Objectives: To assess current knowledge of sexually transmitted viral hepatitis in relation to epidemiology, clinical presentation, management, and diagnosis with particular reference to resource-poor settings. Method: A search of published literature identified through Medline from 1966 to October 2001, the Cochrane Library, and reference lists taken from each article obtained. Textword and MeSH searches for hepatitis A, B, C, D, E, G, delta, GB virus, GBV-C, and TT virus were linked to searches under the textword terms sex$, prevent$, and MeSH subheadings, microbiology, complications, drug therapy, therapy, diagnosis, epidemiology, transmission, and prevention and control. Conclusions: In heterosexual relationships, hepatitis B is readily transmitted sexually and hepatitis C and D less so, with no evidence for sexual transmission of hepatitis A. Hepatitis types A‘D are all transmissible sexually in male homosexual relationships under certain conditions. In resource-poor countries sexual transmission is generally only a significant route of transmission for hepatitis B. PMID:12181458

  19. Materials

    NASA Technical Reports Server (NTRS)

    Glaessgen, Edward H.; Schoeppner, Gregory A.

    2006-01-01

    NASA Langley Research Center has successfully developed an electron beam freeform fabrication (EBF3) process, a rapid metal deposition process that works efficiently with a variety of weldable alloys. The EBF3 process can be used to build a complex, unitized part in a layer-additive fashion, although the more immediate payoff is for use as a manufacturing process for adding details to components fabricated from simplified castings and forgings or plate products. The EBF3 process produces structural metallic parts with strengths comparable to that of wrought product forms and has been demonstrated on aluminum, titanium, and nickel-based alloys to date. The EBF3 process introduces metal wire feedstock into a molten pool that is created and sustained using a focused electron beam in a vacuum environment. Operation in a vacuum ensures a clean process environment and eliminates the need for a consumable shield gas. Advanced metal manufacturing methods such as EBF3 are being explored for fabrication and repair of aerospace structures, offering potential for improvements in cost, weight, and performance to enhance mission success for aircraft, launch vehicles, and spacecraft. Near-term applications of the EBF3 process are most likely to be implemented for cost reduction and lead time reduction through addition of details onto simplified preforms (casting or forging). This is particularly attractive for components with protruding details that would require a significantly large volume of material to be machined away from an oversized forging, offering significant reductions to the buy-to-fly ratio. Future far-term applications promise improved structural efficiency through reduced weight and improved performance by exploiting the layer-additive nature of the EBF3 process to fabricate tailored unitized structures with functionally graded microstructures and compositions.

  20. Gender, Religiosity, Sexual Activity, Sexual Knowledge, and Attitudes Toward Controversial Aspects of Sexuality.

    PubMed

    Sümer, Zeynep Hatipo?lu

    2015-12-01

    The purpose of this study is to examine the role of gender, religiosity, sexual activity, and sexual knowledge in predicting attitudes toward controversial aspects of sexuality among Turkish university students. Participants were 162 female and 135 male undergraduate students who were recruited on a volunteer basis from an urban state university in Turkey. The SKAT-A Attitude Scale along with background information form, sexual activities inventory, and sexual knowledge scale were administered to the participants. Simultaneous multiple regression analyses revealed that religiosity, particularly attendance to religious services was the most significant predictor in explaining university students' attitudes toward masturbation, abortion, homosexuality, pornography, and sexual coercion. PMID:24510128

  1. Sexual Coercion Content in 21 Sexuality Education Curricula.

    ERIC Educational Resources Information Center

    Beyer, Christine E.; Ogletree, Roberta J.

    1998-01-01

    Examined adolescent sexuality-education curricula for information on coercion (date rape, stranger rape, pressure, incest, sexual harassment, unwanted/inappropriate touch, and exploitation/victimization). Exploitation/victimization and pressure received the greatest attention. Sexual harassment was not covered in any of the curricula. Results…

  2. Association of Sexual Revictimization with Sexuality and Psychological Function

    ERIC Educational Resources Information Center

    Miner, Michael H.; Flitter, Jill M. Klotz; Robinson, Beatrice E.

    2006-01-01

    This study explores the associations of sexual revictimization (experiencing sexual abuse in childhood and adulthood) in a sample of 230 African American women who are low-income. Data indicate that women who experience sexual revictimization are more at risk for emotional stress and psychological pathology than women with no history of abuse. In…

  3. Sexual compulsion – Relationship with sex, attachment and sexual orientation

    PubMed Central

    KATZ, LICHEN; EBERHARDT, HILA; COHEN, KOBY; LEJOYEUX, MICHEL

    2015-01-01

    Background and aims Sexual addiction, also known as hypersexual disorder, is associated with serious psychosocial problems for many people. Methods This study used questionnaires to investigate the effects of gender, sexual orientation and attachment (avoidance and anxiety) on sexual compulsion among 100 heterosexual and homosexual men and women. Results A positive correlation was found between anxious attachment and sexual compulsivity (r = 0.46; p < 0.01) and a positive correlation between avoidant attachment and sexual compulsivity (r = 0.39; p ? 0.01) in all participants. Secondly, an analysis of covariance showed a gender by sexual orientation interaction effect [F(1, 103) = 6.39, p < 0.01] but no attachment effect on sexual compulsivity. A follow-up comparison showed that lesbian women had higher rates of sexual compulsivity than heterosexual women [t (2, 50) = 5.08, p < 0.001] whereas there was non-significant difference in sexual compulsivity between homosexual and heterosexual men [t (2, 50) = 1.30, p = N.S.]. Discussion The results provide preliminary evidence for an association between attachment and sexual compulsivity and the effects of gender and sexual orientation on sexual compulsivity. PMID:25786496

  4. SEXUALLY TRANSMITTED DISEASES SURVEILLANCE SYSTEM

    EPA Science Inventory

    The Sexually Transmitted Disease Surveillance System presents statistics and trends for sexually transmitted diseases (STDs). Data demonstrate details which provide information about STD morbidity in the United States, STD prevalence with subgroups and populations which are the f...

  5. Helping Teens Resist Sexual Pressure

    MedlinePLUS

    ... Listen Español Text Size Email Print Share Helping Teens Resist Sexual Pressure Article Body Teens are more ... younger the first time they had intercourse. Helping Teens Resist Sexual Pressure “The pressure on teenagers to ...

  6. Bystanders' Reactions to Sexual Harassment 

    E-print Network

    Benavides Espinoza, Claudia

    2010-07-14

    Sexual harassment is associated with negative consequences for victims and bystanders. Because 9 in 10 victims do not report harassment, understanding bystanders' reactions to sexual harassment is important. Thus, my dissertation?s purpose...

  7. Associations between youth homelessness, sexual offenses, sexual victimization, and sexual risk behaviors: a systematic literature review.

    PubMed

    Heerde, Jessica A; Scholes-Balog, Kirsty E; Hemphill, Sheryl A

    2015-01-01

    Homeless youth commonly report engaging in sexual risk behaviors. These vulnerable young people also frequently report being sexually victimized. This systematic review collates, summarizes, and appraises published studies of youth investigating relationships between homelessness, perpetration of sexual offenses, experience of sexual victimization, and engagement in sexual risk behavior. A systematic search of seventeen psychology, health, and social science electronic databases was conducted. Search terms included "homeless*," "youth," "offend*," "victimization," "crime," "rape," "victim*," and "sex crimes." Thirty-eight studies were identified that met the inclusion criteria. Findings showed homeless youth commonly report being raped and sexually assaulted, fear being sexually victimized, and engage in street prostitution and survival sex. Rates of victimization and sexual risk behavior were generally higher for females. Given the paucity of longitudinal studies and limitations of current studies, it is unclear whether homelessness is prospectively associated with sexual victimization or engagement in sexual risk behavior, and whether such associations vary cross nationally and as a function of time and place. Future prospective research examining the influence of the situational context of homelessness is necessary to develop a better understanding of how homelessness influences the perpetration of sexual offenses, experience of sexual victimization, and engagement in sexual risk behavior among homeless youth. PMID:25411128

  8. DYNA3D. Explicit 3-d Hydrodynamic FEM Program

    SciTech Connect

    Kennedy, T.

    1989-05-01

    DYNA3D is an explicit, three-dimensional, finite element program for analyzing the large deformation dynamic response of inelastic solids and structures. DYNA3D contains 30 material models and 10 equations of state (EOS) to cover a wide range of material behavior. The material models implemented are: elastic, orthotropic elastic, kinematic/isotropic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, Blatz-Ko rubber, high explosive burn, hydrodynamic without deviatoric stresses, elastoplastic hydrodynamic, temperature-dependent elastoplastic, isotropic elastoplastic, isotropic elastoplastic with failure, soil and crushable foam with failure, Johnson/Cook plasticity model, pseudo TENSOR geological model, elastoplastic with fracture, power law isotropic plasticity, strain rate dependent plasticity, rigid, thermal orthotropic, composite damage model, thermal orthotropic with 12 curves, piecewise linear isotropic plasticity, inviscid two invariant geologic cap, orthotropic crushable model, Moonsy-Rivlin rubber, and resultant plasticity. The hydrodynamic material models determine only the deviatoric stresses. Pressure is determined by one of 10 equations of state including linear polynomial, JWL high explosive, Sack `Tuesday` high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, tabulated, and TENSOR pore collapse. DYNA3D generates three binary output databases. One contains information for complete states at infrequent intervals; 50 to 100 states is typical. The second contains information for a subset of nodes and elements at frequent intervals; 1,000 to 10,000 states is typical. The last contains interface data for contact surfaces.

  9. DYNA3D. Explicit 3-d Hydrodynamic FEM Program

    SciTech Connect

    Chu, R.; Amakai, M.; Lung, H.C.; Ishigai, T.

    1989-05-01

    DYNA3D is an explicit, three-dimensional, finite element program for analyzing the large deformation dynamic response of inelastic solids and structures. DYNA3D contains 30 material models and 10 equations of state (EOS) to cover a wide range of material behavior. The material models implemented are: elastic, orthotropic elastic, kinematic/isotropic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, Blatz-Ko rubber, high explosive burn, hydrodynamic without deviatoric stresses, elastoplastic hydrodynamic, temperature-dependent elastoplastic, isotropic elastoplastic, isotropic elastoplastic with failure, soil and crushable foam with failure, Johnson/Cook plasticity model, pseudo TENSOR geological model, elastoplastic with fracture, power law isotropic plasticity, strain rate dependent plasticity, rigid, thermal orthotropic, composite damage model, thermal orthotropic with 12 curves, piecewise linear isotropic plasticity, inviscid two invariant geologic cap, orthotropic crushable model, Moonsy-Rivlin rubber, resultant plasticity. The hydrodynamic material models determine only the deviatoric stresses. Pressure is determined by one of 10 equations of state including linear polynomial, JWL high explosive, Sack Tuesday high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, tabulated, and TENSOR pore collapse. DYNA3D generates three binary output databases. One contains information for complete states at infrequent intervals; 50 to 100 states is typical. The second contains information for a subset of nodes and elements at frequent intervals; 1,000 to 10,000 states is typical. The last contains interface data for contact surfaces.

  10. Sexual selection in fungi.

    PubMed

    Nieuwenhuis, B P S; Aanen, D K

    2012-12-01

    The significance of sexual selection, the component of natural selection associated with variation in mating success, is well established for the evolution of animals and plants, but not for the evolution of fungi. Even though fungi do not have separate sexes, most filamentous fungi mate in a hermaphroditic fashion, with distinct sex roles, that is, investment in large gametes (female role) and fertilization by other small gametes (male role). Fungi compete to fertilize, analogous to 'male-male' competition, whereas they can be selective when being fertilized, analogous to female choice. Mating types, which determine genetic compatibility among fungal gametes, are important for sexual selection in two respects. First, genes at the mating-type loci regulate different aspects of mating and thus can be subject to sexual selection. Second, for sexual selection, not only the two sexes (or sex roles) but also the mating types can form the classes, the members of which compete for access to members of the other class. This is significant if mating-type gene products are costly, thus signalling genetic quality according to Zahavi's handicap principle. We propose that sexual selection explains various fungal characteristics such as the observed high redundancy of pheromones at the B mating-type locus of Agaricomycotina, the occurrence of multiple types of spores in Ascomycotina or the strong pheromone signalling in yeasts. Furthermore, we argue that fungi are good model systems to experimentally study fundamental aspects of sexual selection, due to their fast generation times and high diversity of life cycles and mating systems. PMID:23163326

  11. Sexual Abuse and Sexual Functioning in a Chronic Pelvic Pain Sample

    ERIC Educational Resources Information Center

    Randolph, Mary E.; Reddy, Diane M.

    2006-01-01

    Sexual abuse, particularly childhood sexual abuse, has been linked to chronic pelvic pain and to sexual dysfunction, though the sexual functioning of survivors of sexual abuse has not been studied in a chronic pain population. Sixty-three women with chronic pelvic pain completed measures of sexual function, sexual abuse, and pain. Using an index…

  12. Sexual behavior of infertile women: a qualitative study

    PubMed Central

    Bokaie, Mahshid; Simbar, Masoumeh; Yassini Ardekani, Seyed Mojtaba

    2015-01-01

    Background: Infertility makes an essential challenge to the sexual life of couples, especially infertile women. When pregnancy does not happen, infertile women think that sexual intercourse is not fruitful and sexual desire became reduce gradually. Infertile women progressively forget that their sexual relationship is also a response to their natural need. Objective: This qualitative study was conducted to explore the infertility consequences in the sexual behavior of infertile women. Materials and Methods: This was a qualitative content analysis study; and it was part of a widespread study, used a sequential mixed-method and conducted from August 2014 until February 2015. A purposeful sampling was used to recruit infertile women who had referred to Yazd Research and Clinical Center for Infertility. Data gathering techniques employed in this research included in-depth semi structured open face-to-face interviews and field notes. Credibility, transferability, confirm ability, and dependability were assessed for the rigor of the data collection. Results: Totally, 15 infertile women and 8 key informants were interviewed. Data analysis showed four themes about impact of infertility on female sexual behavior: 1/ Impact of infertility drugs on couple sexual behavior, 2/ Impact of assisted reproductive technologies on female sexual behavior, 3/ Timed intercourse during infertility and 4/ The psychological impact of infertility on sexual behavior. Conclusion: Some of Iranian infertile women could cope with their problems, but some of them were very affected by infertility drugs and assisted reproductive technologies procedures. Psychosexual counseling before medical treatment could help them to have a better sexual life. PMID:26644793

  13. The Impact of Vulvar Lichen Sclerosus on Sexual Dysfunction

    PubMed Central

    Aldrich, Nely Z.; Dalton, Vanessa K.; Gagné, Hélène M.; Marcus, Stephanie B.; Patel, Divya A.; Berger, Mitchell B.

    2014-01-01

    Abstract Background: Lichen sclerosus (LS) is a chronic inflammatory condition that is known to arise on the vulva. Many women with LS report vulvar pain, often affecting a patient's quality of life. In this study, the sexual function of LS patients, with and without pain, was compared to control populations. Materials and Methods: A case-control study to examine the relationship between LS and sexual dysfunction was conducted. A total of 335 women presenting to the gynecology clinic were included in the study: 197 women with biopsy confirmed LS were compared to two control groups (95 asymptomatic women were “healthy” controls and 43 women had vulvovaginal candidiasis) on self-reported current health complaints, medical and surgical history and current symptoms such as pain and itching, type and frequency of sexual activity, and satisfaction with sexual activity. Results: Women with LS reported less frequent sexual activity than healthy controls (p=0.007) and Candida controls (p=0.04). Currently sexually active women with LS were significantly less likely to report vaginal intercourse (71.6%) than healthy controls (89.0%, p=0.003) or Candida controls (100%, p=0.0003), even though similar proportions of all three groups reported that vaginal intercourse was important. Satisfaction towards the quality of current sexual activity was significantly lower among women with LS compared with both the healthy and Candida control groups. 23.7% of women with LS reported that sexual activity was rarely or never satisfactory as compared with 0% of healthy controls (p<0.0001) and 6.5% of Candida controls (p=0.03). Conclusion: Women with LS have less frequent sexual activity and less satisfying sexual activity when compared with controls. PMID:25162790

  14. Sexuality, rights and personhood: tensions in a transnational world

    PubMed Central

    2011-01-01

    Background This article discusses what happens when normative ‘global’ discourses of rights and individuated sexual identity confront the messiness of ‘local’ realities. It considers the tensions that emerge when the relationship between sexual and social identities is not obvious and the implications of such tensions for public health and sexual rights activism. These questions are addressed through debates over the naming of male-to-male sexualities and desires in the context of globalization and the growth of a large NGO (non-governmental organization) sector in urban Bangladesh. Methods The material in the paper draws on a research project undertaken in 2008-9 in Dhaka, Bangladesh. A fundamental objective was to produce a contextualized understanding of sexuality in Dhaka city. Methods used included structured interviews, focus group discussions and informal conversations with a range of participants (students, factory workers, public health professionals and sexual minorities). The aim was to generate a conceptual and analytical framework around sexuality and rights rather than to undertake an empirical survey of any one population. Results As descriptors, globalized identity categories such as Men who have Sex with Men (MSM), used by public health providers, the state and donors; and gay/lesbian, invoked by human rights activists and transnational NGOs, are too narrow to capture the fluid and highly context-specific ways in which gender and sexually nonconforming persons understand themselves in Bangladesh. Further, class position mediates to a significant degree the reception, appropriation or rejection of transnational categories such as MSM and Lesbian, Gay, Bisexual, Transgender (LGBT). The tension is reflected in the sometimes fraught relations between service providers to MSM, the people they serve and an emerging group who identify as LGBT. Conclusion A simple politics of recognition will be inadequate to the task of promoting health and human rights for all; such a strategy would effectively exclude individuals who do not necessarily connect their sexual practices with a specific sexual or social identity. PMID:22376124

  15. Fully explicit algorithms for fluid simulation

    NASA Astrophysics Data System (ADS)

    Clausen, Jonathan

    2011-11-01

    Computing hardware is trending towards distributed, massively parallel architectures in order to achieve high computational throughput. For example, Intrepid at Argonne uses 163,840 cores, and next generation machines, such as Sequoia at Lawrence Livermore, will use over one million cores. Harnessing the increasingly parallel nature of computational resources will require algorithms that scale efficiently on these architectures. The advent of GPU-based computation will serve to accelerate this behavior, as a single GPU contains hundreds of processor ``cores.'' Explicit algorithms avoid the communication associated with a linear solve, thus parallel scalability of these algorithms is typically high. This work will explore the efficiency and accuracy of three explicit solution methodologies for the Navier-Stokes equations: traditional artificial compressibility schemes, the lattice-Boltzmann method, and the recently proposed kinetically reduced local Navier-Stokes equations [Borok, Ansumali, and Karlin (2007)]. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000.

  16. Spatially explicit modelling of cholera epidemics

    NASA Astrophysics Data System (ADS)

    Finger, F.; Bertuzzo, E.; Mari, L.; Knox, A. C.; Gatto, M.; Rinaldo, A.

    2013-12-01

    Epidemiological models can provide crucial understanding about the dynamics of infectious diseases. Possible applications range from real-time forecasting and allocation of health care resources to testing alternative intervention mechanisms such as vaccines, antibiotics or the improvement of sanitary conditions. We apply a spatially explicit model to the cholera epidemic that struck Haiti in October 2010 and is still ongoing. The dynamics of susceptibles as well as symptomatic and asymptomatic infectives are modelled at the scale of local human communities. Dissemination of Vibrio cholerae through hydrological transport and human mobility along the road network is explicitly taken into account, as well as the effect of rainfall as a driver of increasing disease incidence. The model is calibrated using a dataset of reported cholera cases. We further model the long term impact of several types of interventions on the disease dynamics by varying parameters appropriately. Key epidemiological mechanisms and parameters which affect the efficiency of treatments such as antibiotics are identified. Our results lead to conclusions about the influence of different intervention strategies on the overall epidemiological dynamics.

  17. Explicit Associator Relations for Multiple Zeta Values

    E-print Network

    Soudères, Ismaël

    2010-01-01

    Associators were introduced by Drinfel'd in as a monodromy representation of a KZ equation. Associators can be briefly described as formal series in two non-commutative variables satisfying three quations. These three equations yield a large number of algebraic relations between the coefficients of the series, a situation which is particularly interesting in the case of the original Drinfel'd associator, whose coefficients are multiple zetas values. In the first part of this paper, we work out these algebraic relations among multiple zeta values by direct use of the defining relations of associators. While well-known for the first two relations, the algebraic relations we obtain for the third (pentagonal) relation, which are algorithmically explicit although we do not have a closed formula, do not seem to have been previously written down. The second part of the paper shows that if one has an explicit basis for the bar-construction of the moduli space of genus zero Riemann surfaces with 5 marked points at one...

  18. [Sexuality in Ancient Egypt].

    PubMed

    Androutsos, G; Marketos, S

    1994-10-01

    The present article explores the sexuality in ancient Egypt. In particular in this article are presented the ways of concubinage (marriage, concubinage, adultery), the incest, loves of the pharaohs and of the common people, the freedom of choice in garments, the status of the hetairas and of the whores, the sexual perversions (male and female homosexuality, necrophilia, sodomism, bestiality, rape, masturbation, exhibitionism), the operations of the genitals (circumcision, excision, castration) and finally the level of knowledge in gynaecology, fertility, contraception and obstetrics that even today demands our admiration. PMID:7858632

  19. Ethnicity and sexuality

    E-print Network

    Nagel, Joane

    2000-01-01

    and types of sexual activity, see Kinsey et al 1948, 1953, Masters & Johnson 1966, 1970, Michael et al 1994, Laumann et al 1994). Some of the most interesting contemporary work deconstructing and challeng- ing assumptions about the nature and content..., Jones 1997), adultery appears to be a fairly common phenomenon in marriages and other monogamous relationships (e.g, 20% to 50% of respondents report extra-monogamous sexual activity; see Kinsey et al 1948, 1953, Michael et al 1994). In fact, high rates...

  20. Analytical DSA for Explicit Dynamics of Elastic-plastic Shells

    NASA Astrophysics Data System (ADS)

    Wisniewski, K.; Kowalczyk, P.; Turska, E.

    2007-05-01

    The paper presents an analytical constitutive design sensitivity analysis (DSA) algorithm for explicit dynamics of elastic-plastic finite rotation shells. Two explicit dynamical algorithms for finite rotation shells are presented, and the DSA is developed for the one formulated in terms of the rotation vector and its time derivatives, \\{ mathbf{?}, mathbf{dot{?}}, mathbf{ddot{?}}\\}. The hypo-elastic constitutive model based on the Green McInnis Naghdi stress rate is used to derive an incremental algorithm in terms of ‘back-rotated’ objects. The associative deviatoric Huber Mises plasticity modified by plane stress conditions is implemented in the form suitable for finite rotation/small elastic strain increments. The analytical DSA is developed for the above-specified problem, with the design derivatives calculated w.r.t. material parameters. Design- differentiation of the dynamic algorithm and the scheme of handling the history data and the predicted values in differentiation, which is crucial in computing correct derivatives, are described. Besides, we show how to avoid Newton loops in the DSA algorithm, when such a loop is present in the constitutive algorithm. Numerical examples show that, despite a great complexity of the solution algorithm for the finite-rotation elastic-plastic shells, it is feasible to compute analytical design derivatives of very good accuracy.

  1. Sexual Health in Prime Time

    ERIC Educational Resources Information Center

    Taverner, William J.

    2006-01-01

    The term "sexual health" is often used in sexuality education without any concrete, operational definition, and students are left to ascertain the meaning for themselves. In the absence of a clear definition, students may adopt diverse or narrow understandings of this vague term, without learning the full scope of everything that sexual health…

  2. The "Right" Sexuality for Girls

    ERIC Educational Resources Information Center

    Lamb, Sharon

    2008-01-01

    Feminist researchers in psychology and education have been theorizing about the kind of sexuality girls ought to have. They are not afraid to investigate morality and what makes a good life. While they explore the meaning and cultural context of girls' sexual development, the good sexual life they describe may be an elusive ideal that, in the end,…

  3. Explicitly represented polygon wall boundary model for the explicit MPS method

    NASA Astrophysics Data System (ADS)

    Mitsume, Naoto; Yoshimura, Shinobu; Murotani, Kohei; Yamada, Tomonori

    2015-05-01

    This study presents an accurate and robust boundary model, the explicitly represented polygon (ERP) wall boundary model, to treat arbitrarily shaped wall boundaries in the explicit moving particle simulation (E-MPS) method, which is a mesh-free particle method for strong form partial differential equations. The ERP model expresses wall boundaries as polygons, which are explicitly represented without using the distance function. These are derived so that for viscous fluids, and with less computational cost, they satisfy the Neumann boundary condition for the pressure and the slip/no-slip condition on the wall surface. The proposed model is verified and validated by comparing computed results with the theoretical solution, results obtained by other models, and experimental results. Two simulations with complex boundary movements are conducted to demonstrate the applicability of the E-MPS method to the ERP model.

  4. The relationship between sexual selection and sexual conflict.

    PubMed

    Kokko, Hanna; Jennions, Michael D

    2014-09-01

    Evolutionary conflicts of interest arise whenever genetically different individuals interact and their routes to fitness maximization differ. Sexual selection favors traits that increase an individual's competitiveness to acquire mates and fertilizations. Sexual conflict occurs if an individual of sex A's relative fitness would increase if it had a "tool" that could alter what an individual of sex B does (including the parental genes transferred), at a cost to B's fitness. This definition clarifies several issues: Conflict is very common and, although it extends outside traits under sexual selection, sexual selection is a ready source of sexual conflict. Sexual conflict and sexual selection should not be presented as alternative explanations for trait evolution. Conflict is closely linked to the concept of a lag load, which is context-dependent and sex-specific. This makes it possible to ask if one sex can "win." We expect higher population fitness if females win. PMID:25038050

  5. Televised sexual content and parental mediation: Influences on adolescent sexuality

    PubMed Central

    Fisher, Deborah A.; Hill, Douglas L.; Grube, Joel W.; Bersamin, Melina M.; Walker, Samantha; Gruber, Enid L.

    2011-01-01

    Little research has been conducted to examine the influence of exposure to televised sexual content on adolescent sexuality or how parental intervention may reduce negative effects of viewing such content. This study uses self-report data from 1,012 adolescents to investigate the relations among exposure to sexually suggestive programming, parental mediation strategies, and three types of adolescent sexuality outcomes: participation in oral sex and sexual intercourse, future intentions to engage in these behaviors, and sex expectancies. As predicted, exposure to sexual content was associated with an increased likelihood of engaging in sexual behaviors, increased intentions to do so in the future, and more positive sex expectancies. Often, parental mediation strategies were a significant factor in moderating these potential media influences. PMID:21546986

  6. Queering the Ethical School: A Model for Sexual Orientation Education at a Religiously-Affiliated Institution.

    ERIC Educational Resources Information Center

    Getz, Cheryl; Kirkley, Evelyn A.

    The Rainbow Visibility Project has the primary goal of raising awareness to sexual orientation as a diversity issue at the University of San Diego (USD) (California), a Roman Catholic liberal arts university. It was designed to be consistent with other efforts supporting the cultural competence at the university, whose mission statement explicitly

  7. Women's History of Sexual Abuse, Their Sexuality, and Sexual Self-Schemas

    ERIC Educational Resources Information Center

    Meston, Cindy M.; Rellini, Alessandra H.; Heiman, Julia R.

    2006-01-01

    In this study, the authors assessed 48 female survivors of child sexual abuse (CSA) and 71 female control participants using measures of adult sexual function, psychological function (i.e., depression and anxiety), and sexual self-schemas. The primary purpose of this study was to examine whether differences existed between women with and without a…

  8. Childhood Sexual Abuse Moderates the Association between Sexual Functioning and Sexual Distress in Women

    ERIC Educational Resources Information Center

    Stephenson, Kyle R.; Hughan, Corey P.; Meston, Cindy M.

    2012-01-01

    Objective: To assess the degree to which a history of childhood sexual abuse (CSA) moderates the association between sexual functioning and sexual distress in women. Method: Women with (n = 105, M age = 33.71, 66.1% Caucasian) and without (n = 71, M age = 32.63, 74.7% Caucasian) a history of CSA taking part in a larger clinical trial completed…

  9. Serious Games for Sexual Health.

    PubMed

    Shegog, Ross; Brown, Katherine; Bull, Sheana; Christensen, John L; Hieftje, Kimberly; Jozkowski, Kristen N; Ybarra, Michele L

    2015-04-01

    Program developers and researchers in the sexual health domain have increasingly embraced technological trends as they emerge. With the emergence of serious game applications to impact health behaviors, a natural step for research enquiry will be the investigation of serious games for sexual health education. We invited a panel of sexual health researchers who are working at the intersection of sexual health behavior change and technology applications to comment on the place of serious games in furthering the field of sexual health. The panel grappled with six questions. PMID:26181800

  10. [Sexuality and pregnancy].

    PubMed

    Sueiro, E; Gayoso, P; Perdiz, C; Doval, J L

    1998-10-15

    206 randomly selected women in the 6th or 7th month of pregnancy participating in childbirth preparation classes at a center in Ourense, Spain, between January 1993 and January 1995, responded to anonymous questionnaires regarding their sexual behavior during pregnancy. The women were 28 years old on average, married, with secondary education, and employed in skilled jobs or as housewives. 88% were urban. 78% were childless. 93% stated the pregnancy was desired and 91% that it was normal. 73% of the pregnancies were attended by a gynecologist, 23% by a family doctor, and the rest by both. 63% of the women did not ask their physician about sexual activity during pregnancy. 26% did ask questions; 47% about sexual relations during pregnancy, 21% about whether the fetus would be harmed, and 13% about when relations should be discontinued. In an average week, 13% did not have coitus, 24% did so once, 28% twice, and 15% 3 times. 11% did not respond. 38% of the women responding reported always and 7% never reaching orgasm. 28% reported their sexual activity always included coitus and 29% that it almost always did so. 14% reported masturbating, 74% reported not masturbating, and 13% did not respond. PMID:9833348

  11. Storying childhood sexual abuse.

    PubMed

    Draucker, Claire Burke; Martsolf, Donna S

    2008-08-01

    A theoretical framework that explains how survivors of childhood sexual abuse tell others about their abuse experiences is presented. Data are drawn from open-ended interviews conducted with 74 individuals who experienced ongoing childhood sexual abuse by a family member or close acquaintance. Grounded theory methods were used to develop the framework. The psychosocial problem shared by the participants is that childhood sexual abuse both demands and defies explanation. The core psychosocial process used in response to this problem is storying childhood sexual abuse. The framework includes five processes, and the stories associated with each process vary in their nature and function. The processes and associated stories are (a) starting the story: the story-not-yet-told, (b) coming out with the story: the story-first-told, (c) shielding the story: the story-as-secret, (d) revising the story: the story-as-account, and (e) sharing the story: the story-as-message. Clinical applications of the framework are discussed. PMID:18650560

  12. Child Sexual Abuse

    MedlinePLUS

    ... worthlessness and an abnormal or distorted view of sex. The child may become withdrawn and mistrustful of adults, and ... Violent Behavior In Children and Adolescents The Depressed Child Teen Suicide Talking To Your Kids About Sex Self-Injury In Adolescents Responding To Child Sexual ...

  13. Fighting Campus Sexual Assault

    ERIC Educational Resources Information Center

    Tolman, Warren

    2014-01-01

    When President Obama points out, correctly, that young women stand a better chance of being sexually assaulted on a college campus than in the world outside, we have a problem that needs to be addressed not simply on campus, but at the highest levels of government. Author Warren Tolman strongly believes that the Massachusetts Office of Attorney…

  14. Rescheduling Child Sexual Trajectories

    ERIC Educational Resources Information Center

    Yuill, Richard

    2008-01-01

    The author comments on Diederik Janssen's essay "ReQueering Queer Youth Development: A Post-Developmental Approach to Childhood and Pedagogy," commenting that Janssen's analysis can inform both both materialist and post-structuralist understandings of children's sexuality by shifting focus from children as fetishized objects or as a group…

  15. [The sexuality by Marañón].

    PubMed

    Clavero Núñez, José Antonio

    2010-01-01

    It is noticeable that he always had an interest in sexuality Marañón. It must be noted that at the time this included a series of processes that now have become separated from it, as all human reproduction, both from a social standpoint as a scientist or political issues and problems in speaking so very active. But specifically, referring to the current concept of sexuality, much to Marañón investigated because, following the ideas of Freud, then in vogue, I wanted to know the importance that the hormones, newly discovered, had on the brain and the human personality. It is quite possible to believe that there is a brain chemistry that modulate the individual's character, against the prevailing idea among psychiatrists of his time. So his research with adrenaline on the behavior had a huge impact. Interested in the morphological evolution of sex and sexuality from birth to old age, remain valid provided knowledge about the process of sexual maturation and decline, menopause, or rather the climacteric, as rightly he called that period of time. He also made a deep study and systematization of the pathology adel origin and evolution of sex, in which he listed as intersex, both anatomically and functionally and psychic. Because he was always interested in the relationship of human behavior, the development of your body or endocrine constitution and personality. This is reflected in their psychobiographies as the paradigm "Bioassay of Henry IV of Castile and his time". PMID:21877403

  16. Sexually Transmitted Diseases (STDs)

    MedlinePLUS

    ... enabling JavaScript. Top Banner Content Area Skip Content Marketing Share this: Main Content Area Sexually Transmitted Diseases STDs are an important global health priority because of their devastating impact on women and infants and their inter-relationships with HIV/AIDS. STDs and HIV are linked ...

  17. Explicit solutions for relativistic acceleration and rotation

    E-print Network

    Yaakov Friedman

    2005-12-01

    The Lorentz transformations are represented by Einstein velocity addition on the ball of relativistically admissible velocities. This representation is by projective maps. The Lie algebra of this representation defines the relativistic dynamic equation. If we introduce a new dynamic variable, called symmetric velocity, the above representation becomes a representation by conformal, instead of projective maps. In this variable, the relativistic dynamic equation for systems with an invariant plane, becomes a non-linear analytic equation in one complex variable. We obtain explicit solutions for the motion of a charge in uniform, mutually perpendicular electric and magnetic fields. By assuming the Clock Hypothesis and using these solutions, we are able to describe the space-time transformations between two uniformly accelerated and rotating systems.

  18. Explicit spectral formulas for scaling quantum graphs.

    PubMed

    Dabaghian, Yu; Blümel, R

    2004-10-01

    We present an exact analytical solution of the spectral problem of quasi-one-dimensional scaling quantum graphs. Strongly stochastic in the classical limit, these systems are frequently employed as models of quantum chaos. We show that despite their classical stochasticity all scaling quantum graphs are explicitly solvable in the form E(n) =f (n) , where n is the sequence number of the energy level of the quantum graph and f is a known function, which depends only on the physical and geometrical properties of the quantum graph. Our method of solution motivates a new classification scheme for quantum graphs: we show that each quantum graph can be uniquely assigned an integer m reflecting its level of complexity. We show that a network of taut strings with piecewise constant mass density provides an experimentally realizable analogue system of scaling quantum graphs. PMID:15600494

  19. Effortful control, explicit processing, and the regulation of human evolved predispositions.

    PubMed

    MacDonald, Kevin B

    2008-10-01

    This article analyzes the effortful control of automatic processing related to social and emotional behavior, including control over evolved modules designed to solve problems of survival and reproduction that were recurrent over evolutionary time. The inputs to effortful control mechanisms include a wide range of nonrecurrent information--information resulting not from evolutionary regularities but from explicit appraisals of costs and benefits. Effortful control mechanisms are associated with the ventromedial prefrontal cortex and the ventral anterior cingulated cortex. These mechanisms are largely separate from mechanisms of cognitive control (termed executive function) and working memory, and they enable effortful control of behavior in the service of long range goals. Individual differences in effortful control are associated with measures of conscientiousness in the Five Factor Model of personality. Research in the areas of aggression, ethnocentrism, sexuality, reward seeking, and emotion regulation is reviewed indicating effortful control of automatic, implicit processing based on explicit appraisals of the context. Evidence is reviewed indicating that evolutionary pressure for cooperation may be a critical adaptive function accounting for the evolution of explicit processing. PMID:18954212

  20. A dangerous boomerang: Injunctive norms, hostile sexist attitudes, and male-to-female sexual aggression.

    PubMed

    Bosson, Jennifer K; Parrott, Dominic J; Swan, Suzanne C; Kuchynka, Sophie L; Schramm, Andrew T

    2015-11-01

    This study examined the interactive effects of injunctive norm exposure and hostile and benevolent sexist attitudes on men's sexually aggressive responses during a behavioral analogue paradigm in which they interacted online with a bogus female partner. Heterosexual adult men (n?=?201), recruited from an online sample, read fictional information regarding other men's approval of misogynistic, paternalistic, or egalitarian treatment of women, or non-gender-relevant control information. Through a media preference survey, men then learned that their female partner disliked sexual content in films, after which they had an opportunity to send her up to 120?sec' worth of either a sexually explicit or nonsexual film clip. Validating the online sexual aggression paradigm, men with a 1-year history of sexual assault exhibited more sexually aggressive responding during the film selection paradigm. Moreover, exposure to injunctive norm information produced a boomerang effect, such that men high in hostile sexist attitudes showed an increase in sexual aggression when confronted with paternalism and gender equality norms. Conversely, exposure to paternalism and gender equality norms suppressed the otherwise protective function of high benevolent sexism in reducing men's sexually aggressive tendencies. The implications of these results for social norms interventions are discussed. Aggr. Behav. 41:580-593, 2015. © 2015 Wiley Periodicals, Inc. PMID:26174353

  1. Sexual Functioning in Men Living with a Spinal Cord Injury–A Narrative Literature Review

    PubMed Central

    Sunilkumar, MM; Boston, Patricia; Rajagopal, MR

    2015-01-01

    Background: Sexual dysfunction is a major concern for Indian men living with a spinal cord injury Objectives: To examine the literature related to sexuality traumatic cord injury and its impact on sexual functioning. Materials and Methods: Databases using Cumulative Index to Nursing and Allied Health Literature (CINAHL) 2000–2012, Medline 1989–2012, Applied Social Sciences Index and Abstracts (ASSIA) 1989–2012 and Google Scholar were the search engines used used for literature review. Results: The search yielded a total of 457 articles and only 75 of them were found relevant. The minimum number of articles required to meet the inclusion criteria for this review was 25–30 articles. Out of the 75 articles, 33 were considered relevant or related to the topic of sexual functioning, spinal cord injury, and paraplegia. Six areas were identified: Sexual stigmatization, physiological barriers to sexual satisfaction, clinical aspects of sexual functioning, biomedical approaches to sexual dysfunction, partner satisfaction, and lack of accessibility to sexual education. Conclusion: Spinal cord injury and sexual functioning affects a large segment of the male Indian population, yet most current research focuses on quantitative measurement with the emphasis on ejaculatory dysfunction, orgasm impairment, incontinence, and other physiological dysfunction. Further research is needed to address the subjective accounts of patients themselves with respect to the emotional and social impact of sexual disability. This would help to identify the best possible outcomes for both treatment and rehabilitation. PMID:26600694

  2. The Study of Sexual Satisfaction in Iranian Women Applying for Divorce

    PubMed Central

    Gheshlaghi, Farzad; Dorvashi, Gholamali; Aran, Farzaneh; Shafiei, Faranak; Najafabadi, Gita Montazeri

    2014-01-01

    Background Marital instability is affected by many factors. In Iran, socio-cultural and political limitations are obstacles for sexuality-related studies; therefore, insufficient in- formation is available in this area. In the present research, we investigated the relation- ship between marital instability and sexual satisfaction among Iranian women. Materials and Methods A case-control study was carried out to investigate women ap- plying for divorce in comparison with our controls during 2011 to 2012 in Isfahan, Iran. Data gathering was done using a questionnaire including two parts: socio-demographic information and factors influencing sexual satisfaction. Larson Inventory of Sexual Sat- isfaction for determining sexual satisfaction was used to determine sexual satisfaction. Results Divorce rate is significantly related to sexual satisfaction (p=0.009). There were also significant relationships between sexual satisfaction and the following variables: age, economic status, amount of income, duration of marriage, number of children, hous- ing, alcohol/drug abuse by spouse, being beaten by spouse, compulsory marriage, second marriage of spouse, and being happy with current partner. Conclusion Sexual satisfaction plays an important role in marital stability of Iranian women. Thus, development of practical strategies in order to provide cultural intervention is needed to improve Iranian couples’ awareness of their sexual relationship. Indeed, train- ings in communication skills through sexual encounters are essential. PMID:25379157

  3. Nonvolitional sex and sexual health.

    PubMed

    Kalmuss, Debra

    2004-06-01

    Nonvolitional sex is sexual behavior that violates a person's right to choose when and with whom to have sex and what sexual behaviors to engage in. The more extreme forms of this behavior include rape, forced sex, childhood sexual abuse, sex trafficking, and violence against people with nonconventional sexual identities. More nuanced forms of nonvolitional sex include engaging in sexual behavior that masks one's nonconventional sexual identity, or that protects one's position with peers, or that represents a quid pro quo for the economic support that one obtains within an intimate relationship. The aim of this essay is to highlight the ways in which nonvolitional sex threatens sexual health and to identify strategies for ameliorating this problem. These strategies will have to be as broad in scope as is the problem that they are designed to address. The essay discusses the following strategies to reduce nonvolitional sex: (1) advocacy for sexual rights, gender equality, and equality for individuals with nonconventional sexual identities; (2) primary prevention programs and interventions that offer comprehensive sexuality education that establishes volitional sex and sexual health as basic human rights; (3) health services that routinely ask clients about their experiences with nonvolitional sex in an open and culturally appropriate manner; and (4) secondary prevention programs to meet the needs of victims of nonvolitional sex identified by the "screening" programs. PMID:15129039

  4. Explicit 3D continuum fracture modeling with smooth particle hydrodynamics

    NASA Technical Reports Server (NTRS)

    Benz, W.; Asphaug, E.

    1993-01-01

    Impact phenomena shaped our solar system. As usual for most solar system processes, the scales are far different than we can address directly in the laboratory. Impact velocities are often much higher than we can achieve, sizes are often vastly larger, and most impacts take place in an environment where the only gravitational force is the mutual pull of the impactors. The Smooth Particle Hydrodynamics (SPH) technique has been applied in the past to the simulations of giant impacts. In these simulations, the colliding objects were so massive (at least a sizeable fraction of the Earth's mass) that material strength was negligible compared to gravity. This assumption can no longer be made when the bodies are much smaller. To this end, we have developed a 3D SPH code that includes a strength model to which we have added a von Mises yielding relation for stresses beyond the Hugoniot Elastic Limit. At the lower stresses associated with brittle failure, we use a rate-dependent strength based on the nucleation of incipient flaws whose number density is given by a Weibull distribution. Following Grady and Kipp and Melosh et al., we introduce a state variable D ('damage'), 0 less than D less than 1, which expresses the local reduction in strength due to crack growth under tensile loading. Unfortunately for the hydrodynamics, Grady and Kipp's model predicts which fragments are the most probable ones and not the ones that are really formed. This means, for example, that if a given laboratory experiment is modeled, the fragment distribution obtained from the Grady-Kipp theory would be equivalent to a ensemble average over many realizations of the experiment. On the other hand, the hydrodynamics itself is explicit and evolves not an ensemble average but very specific fragments. Hence, there is a clear incompatibility with the deterministic nature of the hydrodynamics equations and the statistical approach of the Grady-Kipp dynamical fracture model. We remedy these shortcomings by making the incipient flaw distribution explicit, i.e., particles carry activation strains which are distributed at random with a probability of occurrence given by the Weibull distribution. If the local principal axis strain exceeds this limit, damage starts to grow. By growing explicit cracks together with statistical cracks (damage) at the sub-particle scale, we ensure that material strength and fragmentation is independent of model resolution. We tested our scheme by simulating laboratory impact experiments on basalt spheres.

  5. university-logo Explicit Liftings of Conjugacy Classes in Reductive

    E-print Network

    Nevins, Monica

    university-logo Explicit Liftings of Conjugacy Classes in Reductive Groups Joshua Lansky Jeffrey December 8, 2013 Lansky (American University) Explicit Liftings CMS Winter Meeting 1 / 18 #12;university-logo (American University) Explicit Liftings CMS Winter Meeting 2 / 18 #12;university-logo Outline 1 Introduction

  6. Developmental Comparisons of Implicit and Explicit Language Learning

    ERIC Educational Resources Information Center

    Lichtman, Karen

    2013-01-01

    Conventional wisdom holds that children learn languages implicitly whereas older learners learn languages explicitly, and some have claimed that after puberty only explicit language learning is possible. However, older learners often receive more explicit instruction than child L2 learners, which may affect their learning strategies. This study…

  7. Explicit MPC with output feedback using self-optimizing control

    E-print Network

    Skogestad, Sigurd

    Explicit MPC with output feedback using self-optimizing control Henrik Manum, Sridharakumar Narasimhan, Sigurd Skogestad Explicit MPC with output feedback using self-optimizing control #12;Outline 1 Optimal operation paradigms 2 Self optimizing control 3 Explicit MPC 4 Link between the two 5 Output

  8. Educational Researchers' Personal Explicit Theories on Creativity and Its Development: A Qualitative Study

    ERIC Educational Resources Information Center

    Maksic, Slavica; Pavlovic, Jelena

    2011-01-01

    The aim of this paper is to investigate implicit theories of educational researchers on creativity and the potential to support creativity in schools. We used qualitative thematic analysis of material produced by 27 educational experts from Serbia. Personal explicit theories about manifestations of creativity are mainly based on qualities and…

  9. What happened to Eric? The derailment of sexual development.

    PubMed

    Waisbrod, Nirit; Reicher, Barbara

    2014-01-01

    A variety of theoretical approaches, from the individual to ecological levels, was applied to the following clinical case in order to understand why a five-year-old boy demonstrated sexual behavior. Inappropriate sexual behavior in children is presented as symptomatic of problems in intrapersonal and interpersonal boundaries, relationship capabilities, and superego consolidation. The case material emphasizes that only when the child is helped to stop his sexual acting out can he access the sources of his emotional distress. The theoretical underpinnings that are relevant to this case will be shown as instrumental in the therapy of this child and his family. By integrating theory with practice, we hope to highlight this sensitive and prevalent issue as well as aid in the early identification and treatment of sexually problematic behavior. PMID:24393092

  10. Digital and divergent: sexual behaviors on the Internet.

    PubMed

    Klein, Carolina A

    2014-01-01

    A variety of sexual behaviors occur online, including those that are highly unusual or even plainly illicit. There is a growing body of literature pertaining to sexual abuse of minors that occurs or may be promoted online, but there is a paucity of information regarding other Internet-based sexual interactions, such as manufacturing, dissemination, and online viewing of other atypical sexual material. In this article, I explore and analyze these different practices, which include, but are not limited to, videos of rape, sadomasochism with bodily disfigurement, zoophilia, and necrophilia, with the intention of diminishing the gap in information about this industry. The impact that these behaviors may have on clinical or forensic psychiatric evaluations is discussed, along with pertinent legal regulations and ethics-related considerations. PMID:25492077

  11. High-risk sexual offenders: an examination of sexual fantasy, sexual paraphilia, psychopathy, and offence characteristics.

    PubMed

    Woodworth, Michael; Freimuth, Tabatha; Hutton, Erin L; Carpenter, Tara; Agar, Ava D; Logan, Matt

    2013-01-01

    High-risk sexual offenders are a complex and heterogeneous group of offenders about whom researchers, clinicians, and law enforcement agencies still know relatively little. In response to the paucity of information that is specifically applicable to high-risk offenders, the present study investigated the potential influence of sexual fantasy, sexual paraphilia, and psychopathy on the offending behaviour of 139 of the highest risk sexual offenders in one province of Canada. The sample included 41 child molesters, 42 rapists, 18 rapist/molesters, 30 mixed offenders, and 6 "other" sexual offenders. Two offenders could not be categorized by type due to insufficient file information. Data analyses revealed significant differences between offender types for a number of criminal history variables including past sexual and nonsexual convictions, number of victims, weapon use, and age of offending onset. Further, there were significant differences between offender types for sexual fantasy themes, paraphilia diagnoses, and levels of psychopathy. For example, results revealed that offenders' sexual fantasies were significantly more likely to correspond with the specific type of index sexual offence that they had committed. Further, offenders scoring high in psychopathy were significantly more likely to have a sadistic paraphilia than offenders with either low or moderate psychopathy scores. Results from the current study provide a refined and informed understanding of sexual offending behaviour with important implications for future research, assessment, and treatment, as well as law enforcement practices when working with high-risk sexual offenders. PMID:23395507

  12. Women's History of Sexual Abuse, Their Sexuality, and Sexual Self-Cindy M. Meston and Alessandra H. Rellini

    E-print Network

    Meston, Cindy

    , and Reproduction In this study, the authors assessed 48 female survivors of child sexual abuse (CSA) and 71 femaleWomen's History of Sexual Abuse, Their Sexuality, and Sexual Self- Schemas Cindy M. Meston control participants using measures of adult sexual function, psychological function (i.e., depression

  13. Sexual harassment consists of nonconsensual sexual advances, requests for sexual favors, or other verbal or physical conduct

    E-print Network

    Lee, Daeyeol

    /7) (Sexual Harassment and Assault Response & Education) Yale Health, Lower LevelSexual harassment consists of nonconsensual sexual advances, requests for sexual favors, or other verbal or physical conduct of a sexual nature on or off campus, when: (1) submission to such conduct

  14. Emergence of clones in sexual populations

    NASA Astrophysics Data System (ADS)

    Neher, Richard A.; Vucelja, Marija; Mezard, Mark; Shraiman, Boris I.

    2013-01-01

    In sexual population, recombination reshuffles genetic variation and produces novel combinations of existing alleles, while selection amplifies the fittest genotypes in the population. If recombination is more rapid than selection, populations consist of a diverse mixture of many genotypes, as is observed in many populations. In the opposite regime, which is realized for example in the facultatively sexual populations that outcross in only a fraction of reproductive cycles, selection can amplify individual genotypes into large clones. Such clones emerge when the fitness advantage of some of the genotypes is large enough that they grow to a significant fraction of the population despite being broken down by recombination. The occurrence of this ‘clonal condensation’ depends, in addition to the outcrossing rate, on the heritability of fitness. Clonal condensation leads to a strong genetic heterogeneity of the population which is not adequately described by traditional population genetics measures, such as linkage disequilibrium. Here we point out the similarity between clonal condensation and the freezing transition in the random energy model of spin glasses. Guided by this analogy we explicitly calculate the probability, Y, that two individuals are genetically identical as a function of the key parameters of the model. While Y is the analog of the spin-glass order parameter, it is also closely related to rate of coalescence in population genetics: two individuals that are part of the same clone have a recent common ancestor.

  15. Reactive Force Fields via Explicit Valency

    NASA Astrophysics Data System (ADS)

    Kale, Seyit

    Computational simulations are invaluable in elucidating the dynamics of biological macromolecules. Unfortunately, reactions present a fundamental challenge. Calculations based on quantum mechanics can predict bond formation and rupture; however they suffer from severe length- and time-limitations. At the other extreme, classical approaches provide orders of magnitude faster simulations; however they regard chemical bonds as immutable entities. A few exceptions exist, but these are not always trivial to adopt for routine use. We bridge this gap by providing a novel, pseudo-classical approach, based on explicit valency. We unpack molecules into valence electron pairs and atomic cores. Particles bear ionic charges and interact via pairwise-only potentials. The potentials are informed of quantum effects in the short-range and obey dissociation limits in the long-range. They are trained against a small set of isolated species, including geometries and thermodynamics of small hydrides and of dimers formed by them. The resulting force field captures the essentials of reactivity, polarizability and flexibility in a simple, seamless setting. We call this model LEWIS, after the chemical theory that inspired the use of valence pairs. Following the introduction in Chapter 1, we initially focus on the properties of water. Chapter 2 considers gas phase clusters. To transition to the liquid phase, Chapter 3 describes a novel pairwise long-range compensation that performs comparably to infinite lattice summations. The approach is suited to ionic solutions in general. In Chapters 4 and 5, LEWIS is shown to correctly predict the dipolar and quadrupolar response in bulk liquid, and can accommodate proton transfers in both acid and base. Efficiency permits the study of proton defects at dilutions not accessible to experiment or quantum mechanics. Chapter 6 discusses explicit valency approaches in other hydrides, forming the basis of a reactive organic force field. Examples of simple proton transfer and more complex reactions are discussed. Chapter 7 provides a framework for variable electron spread. This addition resolves some of the inherent limitations of the former model which implicitly assumed that electron spread was not affected by the environment. A brief summary is provided in Chapter 8.

  16. Sexual assault in the workplace.

    PubMed

    Garrett, Linda H

    2011-01-01

    Women are sexually assaulted at an alarming rate, and the workplace is a frequent arena for assault. However, in recent decades, attention has been given to improving responses to sexual assault. Sexual assault is a frequent cause of injury and death for women in the United States. One in five American women admit they have experienced a completed rape during their lifetime. These estimates are conservative because sexual assault and sexual violence are both underreported and underprosecuted. Fear of job loss and discrimination are frequent reasons women do not report sexual assault in the workplace. Women are entering the workplace in greater numbers due in part to more single parent families and the depressed economy. Also, women are entering work environments that have traditionally been the domain of male workers: corporate headquarters, semi trucks, health care providers' offices, rural farms, and rural factories. Employers must have a plan to protect female employees and effectively address any incidents of sexual assault or violence. Occupational health nurses and nurse practitioners can assist both employees and employers to prevent sexual assault and resolve the aftermath of sexual assault. However, to accomplish this goal, occupational health nurses and nurse practitioners must be trained in sexual assault and violence response as well as preventive interventions. PMID:21175106

  17. Sexualization and lifestyle impulsivity: clinically valid discriminators in sexual offenders.

    PubMed

    Eher, Reinhard; Neuwirth, Wolfgang; Fruehwald, Stefan; Frottier, Patrick

    2003-08-01

    Following clinical observations in this study a comparison was undertaken between nonsexualized rapists, sexualized rapists, and pedophilic child molesters in terms of psychometric measures, criminological data, and DSM-IV diagnoses following the authors' hypotheses that nonsexualized and sexualized rapists differ in respect of psychiatric comorbidity and criminal history and sexualized rapists and pedophilic child molesters are more similar as regards to psychiatric comorbidity (anxiety, depression, and aggression) and criminal history variables than nonsexualized and sexualized rapists are. Preliminary findings confirmed the hypotheses: the authors found significant differences between paraphilic and sexualized sex offenders on one hand--regardless whether they had offended against minors or adults--and a group of sex offenders exhibiting a history of high lifestyle impulsivity on the other hand. From a psychiatric clinical point of view, paraphilic or sexualized rapists could be shown to resemble more the pedophilic child molesters. Therapeutic approaches should take these findings into account. PMID:12971185

  18. The Psychosexual Profile of Sexual Assistants: An Internet-Based Explorative Study

    PubMed Central

    Limoncin, Erika; Galli, Debora; Ciocca, Giacomo; Gravina, Giovanni Luca; Carosa, Eleonora; Mollaioli, Daniele; Lenzi, Andrea; Jannini, Emmanuele A.

    2014-01-01

    Introduction Sexual assistance may have some aspects that resemble prostitution and others that might lead one to think of sexual assistants as similar to a group of subjects whose sexual object is disability (devotees). In this study, we investigate whether a rigorous selection and training process on the part of specialised organisations may reduce the risk of training subjects with an atypical sexual interest and behaviours resembling prostitution. Materials and Methods The study population consisted of 152 subjects defining themselves as sexual assistants. Subjects were initially contacted on websites specifically dedicated to sexual assistants and prostitutes. One hundred and twenty subjects were selected, by propensity score analysis, and studied by means of a modified version of a semi-structured questionnaire previously developed to investigate a population of subjects attracted by disability. Results The study group was composed of 80 trained and 40 untrained sexual assistants, with mean ages of 41.5 (SD +/?12.58) and 44.5 (SD +/?11.62), respectively. A significant number of untrained subjects affirmed that their motivation in carrying out sexual assistance was of a remunerative nature, while this number was lower among the trained assistants (p?=?0.001). Nearly all untrained subjects claimed to do one or more of the following activities during sexual assistance: sexual intercourse, oral sex, and masturbation. Among the trained subjects, however, only 47.5% claimed to do one or more of these activities, which means that there is a significant gap between trained and untrained assistants (p<0.0001). The existence of an atypical sexual interest was more evident between untrained rather than between trained subjects (p<0.0001). Conclusions Sexual assistance represents a way through which people affected by disabilities may attain the right to explore their sexuality in a safe setting. This can be guaranteed only if sexual assistants are trained and carefully selected by specialised organisations. PMID:24919176

  19. Sexual Assault: Victims, Emotional Effects, and Recovery.

    ERIC Educational Resources Information Center

    Marting, Glenda M.

    This paper on sexual assault defines the terms connected with sexual assault and identifies the most common situations in which sexual assault occurs. Information on the types of people who are sexual assault offenders is presented. Common myths concerning sexual assault, particularly rape, that are held in some segments of society are presented…

  20. Relationship Violence & Sexual Misconduct Policy: An Overview

    E-print Network

    violence, including rape and sexual assault of students retaliation against students who claim a violation harassment and such acts of sexual violence as rape, sexual assault, and sexual coercion. "Relationship person without that person's consent. "Rape" is defined as sexual penetration of another person without

  1. Sexuality in the brain.

    PubMed

    Doell, R G

    1995-01-01

    Research on the biological "causes" of homosexuality focuses primarily upon the hypothesis that hormonal influences during fetal life "organize" certain parts of the brain which thus become centers for sexual orientation and behavior later in life. This paper briefly summarizes criticisms of this research that demonstrate little evidence for the operation of such centers and emphasizes alternative scenarios for the development of sexual orientation and behavior which have been slighted by the biological and medical communities. Finally, I suggest that commitment to a belief in a biological mechanism which supports the hierarchy of power by those who benefit from that power maintains the viability of the hypothesis in the face of negative evidence. PMID:7560935

  2. Freezing Behavior as a Response to Sexual Visual Stimuli as Demonstrated by Posturography

    PubMed Central

    Mouras, Harold; Lelard, Thierry; Ahmaidi, Said; Godefroy, Olivier; Krystkowiak, Pierre

    2015-01-01

    Posturographic changes in motivational conditions remain largely unexplored in the context of embodied cognition. Over the last decade, sexual motivation has been used as a good canonical working model to study motivated social interactions. The objective of this study was to explore posturographic variations in response to visual sexual videos as compared to neutral videos. Our results support demonstration of a freezing-type response in response to sexually explicit stimuli compared to other conditions, as demonstrated by significantly decreased standard deviations for (i) the center of pressure displacement along the mediolateral and anteroposterior axes and (ii) center of pressure’s displacement surface. These results support the complexity of the motor correlates of sexual motivation considered to be a canonical functional context to study the motor correlates of motivated social interactions. PMID:25992571

  3. Sexual abuse images in cyberspace: expanding the ecology of the child.

    PubMed

    Martin, Jennifer; Alaggia, Ramona

    2013-01-01

    Cyberspace has added a new dimension to the ecology of children made the subjects of sexual abuse images distributed online. These images cannot be permanently removed and can continue to circulate in cyberspace forever. A review of the current literature suggests that helping professionals are not consistently aware of or do not probe possibilities of online sexual victimization in the investigation, assessment, and treatment of child sexual abuse. Nor is this issue adequately addressed in their education and training. There are gaps in the literature regarding how to identify and provide treatment for these children. New assessment and treatment targets are needed to enhance existing practice approaches. A contemporary ecological model that incorporates an explicit consideration of the cybersystem is provided as a starting point for practitioners to be aware of the possibility that images of child sexual abuse were recorded and distributed online. PMID:23682766

  4. Men sexually assaulted as adults and sexually abused as boys.

    PubMed

    Myers, M F

    1989-06-01

    Previous research on sexually victimized men has mainly addressed the acute symptoms seen in hospital emergency rooms and psychiatric clinics. Findings are reported on 14 men, all but 1 of whom had been sexually traumatized much earlier in life, as boys or young adults. Several problem areas are described: repression, denial, or normalization of the trauma; self-blame and shame; posttraumatic stress disorder; male gender identity fragility; sexual orientation ambiguity and internalized homophobia; sexual difficulties; mistrustfulness of adult men; and disturbances of self-esteem and body image. Gender issues in treatment are discussed. PMID:2751415

  5. DYNA3D. Explicit 3-D Hydrodynamic FEM Program

    SciTech Connect

    Whirley, R.G.

    1989-05-01

    DYNA3D is an explicit, three-dimensional, finite element program for analyzing the large deformation dynamic response of inelastic solids and structures. DYNA3D contains 30 material models and 10 equations of state (EOS) to cover a wide range of material behavior. The material models implemented are: elastic, orthotropic elastic, kinematic/isotropic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, Blatz-Ko rubber, high explosive burn, hydrodynamic without deviatoric stresses, elastoplastic hydrodynamic, temperature-dependent elastoplastic, isotropic elastoplastic, isotropic elastoplastic with failure, soil and crushable foam with failure, Johnson/Cook plasticity model, pseudo TENSOR geological model, elastoplastic with fracture, power law isotropic plasticity, strain rate dependent plasticity, rigid, thermal orthotropic, composite damage model, thermal orthotropic with 12 curves, piecewise linear isotropic plasticity, inviscid two invariant geologic cap, orthotropic crushable model, Moonsy-Rivlin rubber, resultant plasticity, closed form update shell plasticity, and Frazer-Nash rubber model. The hydrodynamic material models determine only the deviatoric stresses. Pressure is determined by one of 10 equations of state including linear polynomial, JWL high explosive, Sack `Tuesday` high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, tabulated, and TENSOR pore collapse. DYNA3D generates three binary output databases. One contains information for complete states at infrequent intervals; 50 to 100 states is typical. The second contains information for a subset of nodes and elements at frequent intervals; 1,000 to 10,000 states is typical. The last contains interface data for contact surfaces.

  6. DYNA3D; Explicit 3-d Hydrodynamic FEM Program

    SciTech Connect

    Whirley, R.G.

    1989-05-01

    DYNA3D is an explicit, three-dimensional, finite element program for analyzing the large deformation dynamic response of inelastic solids and structures. DYNA3D contains 30 material models and 10 equations of state (EOS) to cover a wide range of material behavior. The material models implemented are: elastic, orthotropic elastic, kinematic/isotropic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, Blatz-Ko rubber, high explosive burn, hydrodynamic without deviatoric stresses, elastoplastic hydrodynamic, temperature-dependent elastoplastic, isotropic elastoplastic, isotropic elastoplastic with failure, soil and crushable foam with failure, Johnson/Cook plasticity model, pseudo TENSOR geological model, elastoplastic with fracture, power law isotropic plasticity, strain rate dependent plasticity, rigid, thermal orthotropic, composite damage model, thermal orthotropic with 12 curves, piecewise linear isotropic plasticity, inviscid two invariant geologic cap, orthotropic crushable model, Moonsy-Rivlin rubber, resultant plasticity, closed form update shell plasticity, and Frazer-Nash rubber model. The hydrodynamic material models determine only the deviatoric stresses. Pressure is determined by one of 10 equations of state including linear polynomial, JWL high explosive, Sack Tuesday high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, tabulated, and TENSOR pore collapse. DYNA3D generates three binary output databases. One contains information for complete states at infrequent intervals; 50 to 100 states is typical. The second contains information for a subset of nodes and elements at frequent intervals; 1,000 to 10,000 states is typical. The last contains interface data for contact surfaces.

  7. DYNA3D. Explicit 3-D Hydrodynamic FEM Program

    SciTech Connect

    Whirley, R.G.; Englemann, B.E.

    1993-11-01

    DYNA3D is an explicit, three-dimensional, finite element program for analyzing the large deformation dynamic response of inelastic solids and structures. DYNA3D contains 30 material models and 10 equations of state (EOS) to cover a wide range of material behavior. The material models implemented are: elastic, orthotropic elastic, kinematic/isotropic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, Blatz-Ko rubber, high explosive burn, hydrodynamic without deviatoric stresses, elastoplastic hydrodynamic, temperature-dependent elastoplastic, isotropic elastoplastic, isotropic elastoplastic with failure, soil and crushable foam with failure, Johnson/Cook plasticity model, pseudo TENSOR geological model, elastoplastic with fracture, power law isotropic plasticity, strain rate dependent plasticity, rigid, thermal orthotropic, composite damage model, thermal orthotropic with 12 curves, piecewise linear isotropic plasticity, inviscid two invariant geologic cap, orthotropic crushable model, Moonsy-Rivlin rubber, resultant plasticity, closed form update shell plasticity, and Frazer-Nash rubber model. The hydrodynamic material models determine only the deviatoric stresses. Pressure is determined by one of 10 equations of state including linear polynomial, JWL high explosive, Sack `Tuesday` high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, tabulated, and TENSOR pore collapse. DYNA3D generates three binary output databases. One contains information for complete states at infrequent intervals; 50 to 100 states is typical. The second contains information for a subset of nodes and elements at frequent intervals; 1,000 to 10,000 states is typical. The last contains interface data for contact surfaces.

  8. DYNA3D. Explicit 3-D Hydrodynamic FEM Program

    SciTech Connect

    Whirley, R.G.

    1989-05-01

    DYNA3D is an explicit, three-dimensional, finite element program for analyzing the large deformation dynamic response of inelastic solids and structures. DYNA3D contains 30 material models and 10 equations of state (EOS) to cover a wide range of material behavior. The material models implemented are: elastic, orthotropic elastic, kinematic/isotropic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, Blatz-Ko rubber, high explosive burn, hydrodynamic without deviatoric stresses, elastoplastic hydrodynamic, temperature-dependent elastoplastic, isotropic elastoplastic, isotropic elastoplastic with failure, soil and crushable foam with failure, Johnson/Cook plasticity model, pseudo TENSOR geological model, elastoplastic with fracture, power law isotropic plasticity, strain rate dependent plasticity, rigid, thermal orthotropic, composite damage model, thermal orthotropic with 12 curves, piecewise linear isotropic plasticity, inviscid two invariant geologic cap, orthotropic crushable model, Moonsy-Rivlin rubber, resultant plasticity, closed form update shell plasticity, and Frazer-Nash rubber model. The hydrodynamic material models determine only the deviatoric stresses. Pressure is determined by one of 10 equations of state including linear polynomial, JWL high explosive, Sack Tuesday high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, tabulated, and TENSOR pore collapse. DYNA3D generates three binary output databases. One contains information for complete states at infrequent intervals; 50 to 100 states is typical. The second contains information for a subset of nodes and elements at frequent intervals; 1,000 to 10,000 states is typical. The last contains interface data for contact surfaces.

  9. DYNA3D. Explicit 3-d Hydrodynamic FEM Program

    SciTech Connect

    Whirley, R.G.; Englemann, B.E.

    1993-11-01

    DYNA3D is an explicit, three-dimensional, finite element program for analyzing the large deformation dynamic response of inelastic solids and structures. DYNA3D contains 30 material models and 10 equations of state (EOS) to cover a wide range of material behavior. The material models implemented are: elastic, orthotropic elastic, kinematic/isotropic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, Blatz-Ko rubber, high explosive burn, hydrodynamic without deviatoric stresses, elastoplastic hydrodynamic, temperature-dependent elastoplastic, isotropic elastoplastic, isotropic elastoplastic with failure, soil and crushable foam with failure, Johnson/Cook plasticity model, pseudo TENSOR geological model, elastoplastic with fracture, power law isotropic plasticity, strain rate dependent plasticity, rigid, thermal orthotropic, composite damage model, thermal orthotropic with 12 curves, piecewise linear isotropic plasticity, inviscid two invariant geologic cap, orthotropic crushable model, Moonsy-Rivlin rubber, resultant plasticity, closed form update shell plasticity, and Frazer-Nash rubber model. The hydrodynamic material models determine only the deviatoric stresses. Pressure is determined by one of 10 equations of state including linear polynomial, JWL high explosive, Sack Tuesday high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, tabulated, and TENSOR pore collapse. DYNA3D generates three binary output databases. One contains information for complete states at infrequent intervals; 50 to 100 states is typical. The second contains information for a subset of nodes and elements at frequent intervals; 1,000 to 10,000 states is typical. The last contains interface data for contact surfaces.

  10. DYNA3D. Explicit 3-d Hydrodynamic FEM Program

    SciTech Connect

    Whirley, R.G.; Englemann, B.E. )

    1993-11-30

    DYNA3D is an explicit, three-dimensional, finite element program for analyzing the large deformation dynamic response of inelastic solids and structures. DYNA3D contains 30 material models and 10 equations of state (EOS) to cover a wide range of material behavior. The material models implemented are: elastic, orthotropic elastic, kinematic/isotropic plasticity, thermoelastoplastic, soil and crushable foam, linear viscoelastic, Blatz-Ko rubber, high explosive burn, hydrodynamic without deviatoric stresses, elastoplastic hydrodynamic, temperature-dependent elastoplastic, isotropic elastoplastic, isotropic elastoplastic with failure, soil and crushable foam with failure, Johnson/Cook plasticity model, pseudo TENSOR geological model, elastoplastic with fracture, power law isotropic plasticity, strain rate dependent plasticity, rigid, thermal orthotropic, composite damage model, thermal orthotropic with 12 curves, piecewise linear isotropic plasticity, inviscid two invariant geologic cap, orthotropic crushable model, Moonsy-Rivlin rubber, resultant plasticity, closed form update shell plasticity, and Frazer-Nash rubber model. The hydrodynamic material models determine only the deviatoric stresses. Pressure is determined by one of 10 equations of state including linear polynomial, JWL high explosive, Sack Tuesday high explosive, Gruneisen, ratio of polynomials, linear polynomial with energy deposition, ignition and growth of reaction in HE, tabulated compaction, tabulated, and TENSOR pore collapse. DYNA3D generates three binary output databases. One contains information for complete states at infrequent intervals; 50 to 100 states is typical. The second contains information for a subset of nodes and elements at frequent intervals; 1,000 to 10,000 states is typical. The last contains interface data for contact surfaces.

  11. Treatment of sexually compulsive adolescents.

    PubMed

    Gerber, James

    2008-12-01

    We clarified the nature of sexual compulsivity in adolescence, addressed who is labeled as "sexually compulsive youth," conceptualized the underlying factors of sexual compulsivity, and outlined a treatment format. We focused on trauma, dissociation, attachment, and self-concept. We questioned the conventional perceptions of who is included in this group. We reiterated that the belief that sexually compulsive adolescents are abusive males is no longer considered accurate. The evolution and accessibility of the Internet only raises greater concerns about compulsive sexual behavior, as more adolescents are brought into therapy because of Internet use to seek sexual interaction or stimulation. The sexually compulsive youth is as likely to be the clean-cut, high-achieving, intelligent student as is the economically deprived, juvenile delinquent on the street. This article began with the observation that adolescents rarely receive any direct, accurate information about sexuality and intimacy. The messages taken in through music, television, movies, politicians, popular press, clergy, and school are polarizing and contradictory. Beyond this are the implications as to how we, as a society, treat the youths that do present with sexual behavior problems. We have tended to treat these youth (as well as adults) with disdain and to designate sexually abusive youth the same as adult offenders with harsher, more punitive treatment interventions. Research and clinical experience now strongly question this type of response. This article is consistent with this leaning. Early psychological injury, from sexual abuse, physical abuse, exposure to violence, attachment trauma, or early sexualization, is at the root of sexually compulsive behavior. While it is necessary to reign in out-of-control and destructive behaviors, if we acknowledge that the source of the behavior is psychological injury, then it is cruel and inconsistent to treat the individual with disdain or as a pariah. The same dilemma is present with adult sexual addicts and offenders. Our society must develop a response to sexually compulsive or offensive behavior that can protect those who need protection, while implementing a rational legal response and providing treatment options for the underlying injury. Perhaps even more importantly, our society must learn how to educate adolescents about sexuality with clear, accurate information that includes not only reproduction but sexual response and intimacy as well. PMID:18996305

  12. Sexual Victimization among Spanish College Women and Risk Factors for Sexual Revictimization

    ERIC Educational Resources Information Center

    Santos-Iglesias, Pablo; Sierra, Juan Carlos

    2012-01-01

    Sexual revictimization is frequent among victims of child sexual abuse. Several variables, such as sexual experience, substance abuse, and sexual assertiveness, have been proposed to explain the link between child sexual abuse and adolescent and adult sexual victimization, although they have typically been tested separately. The main objective of…

  13. Barnard College Sexual Violence Resources Definitions of gender based or sexual misconduct

    E-print Network

    /her supervisor. Harassment because of one's sexual orientation also constitutes a violation of this policy or sexual orientation · Inappropriate sexual innuendoes or humor · Videotaping and photographing someoneBarnard College Sexual Violence Resources Definitions of gender based or sexual misconduct Sexual

  14. Keeping Kids Safe: A Child Sexual Abuse Prevention Manual. Second Edition.

    ERIC Educational Resources Information Center

    Tobin, Pnina; Kessner, Sue Levinson

    The material in this book is intended to provide a review of information regarding child abuse prevention. It is divided into two sections. Part 1, The Facilitator's Guide, contains background information on child sexual abuse, with a particular emphasis on the dynamics of incest and other sexual abuse and their effects on the child. It presents a…

  15. Clinician Resources to Improve Evidence-Based Sexual Healthcare: Does Content and Design Matter?

    ERIC Educational Resources Information Center

    Hosseinzadeh, Hassan; Dadich, Ann; Bourne, Chris; Murray, Carolyn

    2014-01-01

    This study examines how the design and content of printed educational materials (PEMs) influence clinician capacity to deliver evidence-based sexual healthcare. General practitioners in New South Wales, Australia (n = 214), completed a survey about their use and perceptions of PEMs - a clinical aide, sexual health articles, and an educational…

  16. Handedness and sexual orientation.

    PubMed

    Holtzen, D W

    1994-10-01

    Surveys of handedness distribution (i.e., the distribution across handedness categories in large samples, typically based upon self-reported right-, mixed- and left-handed classification) indicate approximately 90% of the population is right-handed (Springer & Deutsch, 1989). This distribution toward right-handedness has been called right shift based on a genetic model (Annett, 1985). The present study examined possible handedness distribution differences between 141 gay, lesbian, and bisexuals and 260 heterosexuals who have a homosexual/bisexual first-degree (biological) relative. Based on a five-category self-assessment handedness questionnaire that was validated using Briggs and Nebes' (1975) reformulation of Annett's inventory (1970), non-heterosexuals showed a reduction of right shift compared to heterosexuals (i.e., a population shift toward mixed- and left-handedness), confirming the results of Lindesay (1987) and Becker et al., (1989). Sexual orientation also weakly predicted handedness. The findings indirectly support the hypothesis of Geschwind and Galaburda (1985a, 1985b) that sexual orientation and handedness may be linked, both possibly influenced prenatally by testosterone. The discussion emphasizes (a) the meaninglessness in distinguishing genetic from hormonal influences and (b) non-heterosexually biased assumptions about human sexuality. PMID:7836493

  17. Military sexual trauma.

    PubMed

    Wieland, Diane M; Haley, Jenna L; Bouder, Michelle

    2011-12-01

    Nurses' awareness of MST as a specific type of sexual assault within the military culture and sensitivity to the physical and psychological symptoms are important aspects of care. Nurses must treat the physical and emotional components of sexual assault in all settings; however, referral to the veterans administration programs and resources is key for the woman veteran to receive the specialized care developed by the healthcare system. Women veterans who have PTSD from MST and combat exposure are prone to depression, suicide and substance use/abuse. Nurses must not fear asking the woman if she is having suicidal thoughts or has a plan and intent to follow through with the plan. MST and PTSD may result in internalized anger, shame, self-blame, helplessness, hopelessness and powerlessness. Patient safety is of utmost importance. Assessing Patients for Sexual Violence, A Guide for Health Care Providers (2009) is a useful resource for nurses. The National Center for PTSD (2009) newsletter on the topic of MST includes a list of research studies. The work of Benedict (2007) and Corbett (2007) provide additional personal accounts of women soldiers who were in the Middle East conflicts. The nurse's referral to specialized services to treat MST and PTSD with evidence-based therapies is a crucial first step in the resiliency and well-being of these brave women who have served in all branches of the U.S. military. PMID:22359967

  18. [Adolescent sexuality in Peru].

    PubMed

    Loli, A; Aramburu, C; Paxman, J M

    1987-01-01

    22% of the population of Peru, or 4.25 million individuals, is between the ages of 11 and 19 years. A survey was performed on a sample of 6,000 adolescents living in Lima, Cajamarca, Huarez, and Supe. Surveys were performed in a variety of locations, including school classrooms, maternity wards, schools, and work places. The questionnaire was constructed based on a format that had been tested in Nigeria; questions dealt with socioeconomic background, sex behavior, contraceptive behavior, pregnancy history, and health practices and knowledge. 60% of the adolescents were women and 40% were men. 41% had had at least 1 sexual experience; among 18-year-olds, this % rose to 55. Only 10% were in stable union. Married adolescents tended to have begun sexual relations sooner in life. Early sexual relations were more common among men than among women, and more common among non-religious adolescents than among Catholics. Fewer than 12% of the adolescents had at 1 time used contraceptives. Contraceptive use was more prevalent among adolescents from wealthier socioeconomic groups, and more prevalent in Lima than in other regions surveyed. Of adolescents using contraceptives, 38% used condoms, 24% used oral contraceptives, and 15% used rhythm methods. Most adolescents who did not use contraceptives failed to do so because of lack of knowledge. Almost 1/4 of the young women had had a pregnancy. 18.5 of these had abortions, usually in a hospital. The importance of supporting educational prevention programs is underlined. PMID:12269059

  19. Greater Exposure to Sexual Content in Popular Movies Predicts Earlier Sexual Debut and Increased Sexual Risk Taking

    PubMed Central

    O’Hara, Ross E.; Gibbons, Frederick X.; Gerrard, Meg; Li, Zhigang; Sargent, James D.

    2013-01-01

    Early sexual debut is associated with risky sexual behavior and an increased risk of unplanned pregnancy and sexually transmitted infections later in life. The relations among early movie sexual exposure (MSE), sexual debut, and risky sexual behavior in adulthood (i.e., multiple sexual partners and inconsistent condom use) were examined in a longitudinal study of U.S. adolescents. MSE was measured using the Beach method, a comprehensive procedure for media content coding. Controlling for characteristics of adolescents and their families, analyses showed that MSE predicted age of sexual debut, both directly and indirectly through changes in sensation seeking. MSE also predicted engagement in risky sexual behaviors both directly and indirectly via early sexual debut. These results suggest that MSE may promote sexual risk taking both by modifying sexual behavior and by accelerating the normal rise in sensation seeking during adolescence. PMID:22810165

  20. Greater exposure to sexual content in popular movies predicts earlier sexual debut and increased sexual risk taking.

    PubMed

    O'Hara, Ross E; Gibbons, Frederick X; Gerrard, Meg; Li, Zhigang; Sargent, James D

    2012-09-01

    Early sexual debut is associated with risky sexual behavior and an increased risk of unplanned pregnancy and sexually transmitted infections later in life. The relations among early movie sexual exposure (MSE), sexual debut, and risky sexual behavior in adulthood (i.e., multiple sexual partners and inconsistent condom use) were examined in a longitudinal study of U.S. adolescents. MSE was measured using the Beach method, a comprehensive procedure for media content coding. Controlling for characteristics of adolescents and their families, analyses showed that MSE predicted age of sexual debut, both directly and indirectly through changes in sensation seeking. MSE also predicted engagement in risky sexual behaviors both directly and indirectly via early sexual debut. These results suggest that MSE may promote sexual risk taking both by modifying sexual behavior and by accelerating the normal rise in sensation seeking during adolescence. PMID:22810165

  1. Female sexual function and response.

    PubMed

    Arcos, Barbara

    2004-01-01

    Although female sexual dysfunction is a problem with low priority, it can have a profound impact on quality of life. In women, the cycle of sexual response begins in the brain, where a memory, an image, a scent, music, or a fantasy acts as a trigger to prompt sexual arousal. Thus, the brain is really the key and starting place for treatment of sexual dysfunction. Decreased libido, altered arousal, inability to achieve orgasm, and dyspareunia are the four broad types of sexual dysfunction in women. Decreased libido, thought to be related to androgenic hormones, results in delayed or altered arousal, decreased vaginal lubrication and dilation, delayed or absent orgasm, and pain or dyspareunia, which can lead to an aversion to sexual experiences. PMID:14992322

  2. Sexual victimization, alcohol intoxication, sexual-emotional responding, and sexual risk in heavy episodic drinking women.

    PubMed

    George, William H; Davis, Kelly Cue; Masters, N Tatiana; Jacques-Tiura, Angela J; Heiman, Julia R; Norris, Jeanette; Gilmore, Amanda K; Nguyen, Hong V; Kajumulo, Kelly F; Otto, Jacqueline M; Andrasik, Michele P

    2014-05-01

    This study used an experimental paradigm to investigate the roles of sexual victimization history and alcohol intoxication in young women's sexual-emotional responding and sexual risk taking. A nonclinical community sample of 436 young women, with both an instance of heavy episodic drinking and some HIV/STI risk exposure in the past year, completed childhood sexual abuse (CSA) and adolescent/adult sexual assault (ASA) measures. A majority of them reported CSA and/or ASA, including rape and attempted rape. After random assignment to a high alcohol dose (.10 %) or control condition, participants read and projected themselves into an eroticized scenario of a sexual encounter involving a new partner. As the story protagonist, each participant rated her positive mood and her sexual arousal, sensation, and desire, and then indicated her likelihood of engaging in unprotected sex. Structural equation modeling analyses revealed that ASA and alcohol were directly associated with heightened risk taking, and alcohol's effects were partially mediated by positive mood and sexual desire. ASA was associated with attenuated sexual-emotional responding and resulted in diminished risk taking via this suppression. These are the first findings indicating that, compared to non-victimized counterparts, sexually victimized women respond differently in alcohol-involved sexual encounters in terms of sexual-emotional responding and risk-taking intentions. Implications include assessing victimization history and drinking among women seeking treatment for either concern, particularly women at risk for HIV, and alerting them to ways their histories and behavior may combine to exacerbate their sexual risks. PMID:23857517

  3. Mental illness and sexual offending.

    PubMed

    Booth, Brad D; Gulati, Sanjiv

    2014-06-01

    Transinstitutionalization (ie, the criminalization of those with mental illness) is relevant to individuals committing sexual offenses. Mental illness can affect the treatment and risk management of individuals committing sexual offenses. In this article the current literature on mentally disordered sexual offenders is described, including how psychosis, mood disorders, anxiety disorders, attention-deficit/hyperactivity disorder, and dementing disorders may affect treatment and management. PMID:24877705

  4. Sexual conflict and speciation.

    PubMed Central

    Parker, G A; Partridge, L

    1998-01-01

    We review the significance of two forms of sexual conflict (different evolutionary interests of the two sexes) for genetic differentiation of populations and the evolution of reproductive isolation. Conflicting selection on the alleles at a single locus can occur in males and females if the sexes have different optima for a trait, and there are pleiotropic genetic correlations between the sexes for it. There will then be selection for sex limitation and hence sexual dimorphism. This sex limitation could break down in hybrids and reduce their fitness. Pleiotropic genetic correlations between the sexes could also affect the likelihood of mating in interpopulation encounters. Conflict can also occur between (sex-limited) loci that determine behaviour in males and those that determine behaviour in females. Reproductive isolation may occur by rapid coevolution of male trait and female mating preference. This would tend to generate assortative mating on secondary contact, hence promoting speciation. Sexual conflict resulting from sensory exploitation, polyspermy and the cost of mating could result in high levels of interpopulation mating. If females evolve resistance to make pre- and postmating manipulation, males from one population could be more successful with females from the other, because females would have evolved resistance to their own (but not to the allopatric) males. Between-locus sexual conflict could also occur as a result of conflict between males and females of different populations over the production of unfit hybrids. We develop models which show that females are in general selected to resist such matings and males to persist, and this could have a bearing on both the initial level of interpopulation matings and the likelihood that reinforcement will occur. In effect, selection on males usually acts to promote gene flow and to restrict premating isolation, whereas selection on females usually acts in the reverse direction. We review theoretical models relevant to resolution of this conflict. The winning role depends on a balance between the 'value of winning' and 'power' (relating to contest or armament costs): the winning role is likely to correlate with high value of winning and low costs. Sperm-ovum (or sperm-female tract) conflicts (and their plant parallels) are likely to obey the same principles. Males may typically have higher values of winning, but it is difficult to quantify 'power', and females may often be able to resist mating more cheaply than males can force it. We tentatively predict that sexual conflict will typically result in a higher rate of speciation in 'female-win' clades, that females will be responsible for premating isolation through reinforcement, and that 'female-win' populations will be less genetically diverse. PMID:9533125

  5. Male sexual dysfunction in Asia

    PubMed Central

    Ho, Christopher CK; Singam, Praveen; Hong, Goh Eng; Zainuddin, Zulkifli Md

    2011-01-01

    Sex has always been a taboo subject in Asian society. However, over the past few years, awareness in the field of men's sexual health has improved, and interest in sexual health research has recently increased. The epidemiology and prevalence of erectile dysfunction, hypogonadism and premature ejaculation in Asia are similar in the West. However, several issues are specific to Asian males, including culture and beliefs, awareness, compliance and the availability of traditional/complementary medicine. In Asia, sexual medicine is still in its infancy, and a concerted effort from the government, relevant societies, physicians and the media is required to propel sexual medicine to the forefront of health care. PMID:21643001

  6. Assessing Youth Who Sexually Offended

    PubMed Central

    Ng, Kynaston; Fong, June; Teoh, Jennifer

    2012-01-01

    Recent research suggested that the predictive validity of adult sexual offender risk assessment measures can be affected when used cross-culturally, but there is no published study on the predictive validity of risk assessment measures for youth who sexually offended in a non-Western context. This study compared the predictive validity of three youth risk assessment measures (i.e., the Estimate of Risk of Adolescent Sexual Offense Recidivism [ERASOR], the Juvenile Sex Offender Assessment Protocol-II [J-SOAP-II], and the Youth Level of Service/Case Management Inventory [YLS/CMI]) for sexual and nonviolent recidivism in a sample of 104 male youth who sexually offended within a Singaporean context (Mfollow-up = 1,637 days; SD follow-up = 491). Results showed that the ERASOR overall clinical rating and total score significantly predicted sexual recidivism but only the former significantly predicted time to sexual reoffense. All of the measures (i.e., the ERASOR overall clinical rating and total score, the J-SOAP-II total score, as well as the YLS/CMI) significantly predicted nonsexual recidivism and time to nonsexual reoffense for this sample of youth who sexually offended. Overall, the results suggest that the ERASOR appears to be suited for assessing youth who sexually offended in a non-Western context, but the J-SOAP-II and the YLS/CMI have limited utility for such a purpose. PMID:21825111

  7. Exposure to Sexual Lyrics and Sexual Experience Among Urban Adolescents

    PubMed Central

    Primack, Brian A.; Douglas, Erika L.; Fine, Michael J.; Dalton, Madeline A.

    2010-01-01

    Background Two thirds of all sexual references in music are degrading in nature, yet it remains uncertain whether these references promote earlier sexual activity. The purpose of this study was to determine if exposure to lyrics describing degrading sex in popular music is independently associated with sexual behavior in a cohort of urban adolescents. Methods All ninth-grade health students at three large urban high schools completed in-school surveys in 2006 and 2007. Participants’ exposure to lyrics describing degrading sex was computed with overall music exposure and content analyses of their favorite artists’ songs. Outcomes included sexual intercourse and progression along a noncoital sexual continuum. Multivariable regression was used to assess independent associations between exposure to lyrics describing degrading sex and outcomes. Results The 711 participants were exposed to 14.7 hours each week of songs with lyrics describing degrading sex (SD=17.0). Almost one third of participants (n=216) had previously been sexually active. Compared to those with the least exposure to lyrics describing degrading sex, those with the most exposure were more than twice as likely to have had sexual intercourse (OR=2.07; 95% CI=1.26, 3.41), even after adjusting for all covariates. Similarly, among those who had not had sexual intercourse, those in the highest tertile of exposure to lyrics describing degrading sex were nearly twice as likely to have progressed along a noncoital sexual continuum (OR=1.88; 95% CI=1.23, 2.88) compared to those in the lowest tertile. Finally, the relationships between exposure to lyrics describing nondegrading sex and sexual outcomes were not significant. Conclusions This study supports an association between exposure to lyrics describing degrading sex in popular music and early sexual experience among adolescents. PMID:19285196

  8. Implicit cognitive distortions and sexual offending.

    PubMed

    Mihailides, Stephen; Devilly, Grant J; Ward, Tony

    2004-10-01

    This work develops and tests the semantic-motivation hypothesis of sexual offenders' implicit cognitions. This hypothesis posits that sexual offenders' cognitive distortions emerge at the interface between implicit motivation and cognition. The semantic-motivation hypothesis is used to guide the development of 3 implicit association tests (IATs). These IATs were used to test for the existence of 3 expected child sexual offender implicit cognitive distortions in child sexual offenders ("children as sexual beings," "uncontrollability of sexuality," and "sexual entitlement-bias"). Results showed that child sexual offenders had larger IAT effects than did mainstream offenders and male and female nonoffenders for the "children as sexual beings" and the "uncontrollability of sexuality" implicit theories. Child sexual offenders also had a larger IAT effect than male and female nonoffenders for the "sexual entitlement-bias" implicit theory. Implications for the semantic-motivation hypothesis are discussed. PMID:15560415

  9. Sexuality and Aging: An Overview for Counselors.

    ERIC Educational Resources Information Center

    Capuzzi, Dave

    1982-01-01

    Discusses male and female sexual response in aging adults. Describes common medical problems and their relationship to sexuality in older adults. Considers common surgeries including hysterectomy, mastectomy, and prostatectomy and sexuality in older adults. Discusses implications for counselors. (RC)

  10. Sexuality for the Woman with Cancer

    MedlinePLUS

    ... Topic How the female body works sexually Cancer, sex, and sexuality When you first learned you had ... affect your sexual function. What is a normal sex life? People vary a great deal in their ...

  11. Sexual addiction, sexual compulsivity, sexual impulsivity, or what? Toward a theoretical model.

    PubMed

    Bancroft, John; Vukadinovic, Zoran

    2004-08-01

    We critically review the concepts of sexual addiction, sexual compulsivity, and sexual impulsivity and discuss their theoretical bases. A sample of 31 self-defined sex addicts were assessed by means of interview and questionnaires and compared with a large age-matched control group. A tendency to experience increased sexual interest in states of depression or anxiety was strongly characteristic of the sex addict group. Dissociative experiences were described by 45% of sex addicts and may have some explanatory relevance. Obsessive-compulsive mechanisms may be relevant in some cases, and the addiction concept may prove to be relevant with further research. Overall, results suggested that out of control sexual behavior results from a variety of mechanisms. We propose an alternative theoretical approach to investigating these mechanisms based on the dual control model and recent research on the relation between mood and sexuality. PMID:15497051

  12. The SEM Risk Behavior (SRB) Model: A New Conceptual Model of how Pornography Influences the Sexual Intentions and HIV Risk Behavior of MSM

    PubMed Central

    Wilkerson, J. Michael; Iantaffi, Alex; Smolenski, Derek J.; Brady, Sonya S.; Horvath, Keith J.; Grey, Jeremy A.; Rosser, B. R. Simon

    2012-01-01

    While the effects of sexually explicit media (SEM) on heterosexuals’ sexual intentions and behaviors have been studied, little is known about the consumption and possible influence of SEM among men who have sex with men (MSM). Importantly, conceptual models of how Internet-based SEM influences behavior are lacking. Seventy-nine MSM participated in online focus groups about their SEM viewing preferences and sexual behavior. Twenty-three participants reported recent exposure to a new behavior via SEM. Whether participants modified their sexual intentions and/or engaged in the new behavior depended on three factors: arousal when imagining the behavior, pleasure when attempting the behavior, and trust between sex partners. Based on MSM’s experience, we advance a model of how viewing a new sexual behavior in SEM influences sexual intentions and behaviors. The model includes five paths. Three paths result in the maintenance of sexual intentions and behaviors. One path results in a modification of sexual intentions while maintaining previous sexual behaviors, and one path results in a modification of both sexual intentions and behaviors. With this model, researchers have a framework to test associations between SEM consumption and sexual intentions and behavior, and public health programs have a framework to conceptualize SEM-based HIV/STI prevention programs. PMID:23185126

  13. Regulation of Male Sexual Behavior by Progesterone Receptor, Sexual

    E-print Network

    Crews, David

    . This model system allowed us to investigate the contributions PR makes to the sex behavior of malesRegulation of Male Sexual Behavior by Progesterone Receptor, Sexual Experience, and Androgen Steven M. Phelps,* John P. Lydon, Bert W. O'Malley, and David Crews*,1 *Institute of Reproductive Biology

  14. The Transmissibility of Sexually Transmitted Diseases in Sexually Abused Children.

    ERIC Educational Resources Information Center

    Hammerschlag, Margaret R.

    1998-01-01

    This paper summarizes what is known about, and research needs on, the transmissibility to sexually abused children of the following sexually transmitted diseases: gonorrhea, chlamydia trachomatis, human papillomavirus genital warts, condylomata acuminata, syphilis, bacterial vaginosis, trichomonas vaginalis, herpes simplex, and human…

  15. Contact sexual offending by men with online sexual offenses.

    PubMed

    Seto, Michael C; Hanson, R Karl; Babchishin, Kelly M

    2011-03-01

    There is much concern about the likelihood that online sexual offenders (particularly online child pornography offenders) have either committed or will commit offline sexual offenses involving contact with a victim. This study addresses this question in two meta-analyses: the first examined the contact sexual offense histories of online offenders, whereas the second examined the recidivism rates from follow-up studies of online offenders. The first meta-analysis found that approximately 1 in 8 online offenders (12%) have an officially known contact sexual offense history at the time of their index offense (k = 21, N = 4,464). Approximately one in two (55%) online offenders admitted to a contact sexual offense in the six studies that had self-report data (N = 523). The second meta-analysis revealed that 4.6% of online offenders committed a new sexual offense of some kind during a 1.5- to 6-year follow-up (k = 9, N = 2,630); 2.0% committed a contact sexual offense and 3.4% committed a new child pornography offense. The results of these two quantitative reviews suggest that there may be a distinct subgroup of online-only offenders who pose relatively low risk of committing contact sexual offenses in the future. PMID:21173158

  16. Social and Sexual Risk Factors among Sexual Minority Youth

    ERIC Educational Resources Information Center

    Quinn, Katherine; Ertl, Allison

    2015-01-01

    This study explores the characteristics and risk behaviors of sexual minority high school students using the 2011 Wisconsin Youth Risk Behavior Survey. Among 3,043 students surveyed, 8% of students identified as lesbian, gay, bisexual, or unsure, and 7% reported having contact with same-sex partners. Findings indicate sexual minority students…

  17. Sexual Learning, Sexual Experience, and Healthy Adolescent Sex

    ERIC Educational Resources Information Center

    Fortenberry, J. Dennis

    2014-01-01

    This chapter is organized around the question "How do adolescents learn to have healthy sex?" The chapter assumes that sexual learning derives from a broad range of both informal and formal sources that contribute to learning within the context of neurocognitive brain systems that modulate sexual motivations and self-regulation. The…

  18. Sexual medicine in family practice. Part 2: Treating sexual dysfunction.

    PubMed Central

    Holzapfel, S.

    1993-01-01

    Sexual problems can be caused by organic or psychological factors, or a combination of the two. Deciding which leads to an appropriate management plan. This paper describes the current status of treatments for common sexual dysfunctions seen in family practice. PMID:8471907

  19. Adolescent Sexuality: Pregnancy, Sexually Transmitted Diseases, and Prevention.

    ERIC Educational Resources Information Center

    Santelli, John S.; And Others

    1992-01-01

    Special edition discusses adolescent sexuality, focusing on pregnancy, sexually transmitted diseases, and prevention. The articles focus on demographics, risk factors, school-based risk reduction programs, contraception, early intervention, options, school-based prenatal and postpartum care programs, teenage parenting, abortion, HIV and AIDS,…

  20. Psychopathology and Deviant Sexual Arousal in Incarcerated Sexual Offenders.

    ERIC Educational Resources Information Center

    Serin, Ralph C.; And Others

    1994-01-01

    Investigates the relationship between psychopathology and deviant sexual arousal in sexual offenders (n=65), with approximately equal numbers of rapists and child molesters. Differentiating between rapists, extrafamilial pedophiles, and incest offenders revealed that the relationship between psychopathology and arousal was most apparent for…

  1. Constructing Sexual Identities: People with Intellectual Disability Talking about Sexuality

    ERIC Educational Resources Information Center

    Azzopardi-Lane, Claire; Callus, Anne-Marie

    2015-01-01

    This paper presented research undertaken in collaboration with a self-advocacy group using inclusive research methods and puts forward the views of people with intellectual disability on the topics of sexuality and relationships. The paper presents the perceptions of sexuality of the people with intellectual disability and how these are influenced…

  2. Sexual behavior and job stress in software professionals, Bengaluru - India

    PubMed Central

    Babu, Giridhara R.; Mahapatra, Tanmay; Mahapatra, Sanchita; Detels, Roger

    2013-01-01

    Background: Sexually transmitted diseases are now gradually affecting the general population groups increasingly. Our earlier observations from qualitative research called for an effort to understand the sexual exposure, activity and behavior of the workers in these software professionals in Bengaluru, India. Aim: The current study is explored to understand the association of the sexual behaviors with Job. Materials and Methods: The study design employed was a cross-sectional study using a mixed sampling method. A total of 1071 subjects from software sector in Bengaluru, the capital city of Karnataka completed the self-administered questionnaire. The source population comprised all information technology/information technology enabled services (IT/ITES) professionals aged 20-59 years working in “technical functions” in 21 selected worksites (units) of the software industry. The exposure of interest was job stressors and the outcome measures were sexual behaviors in the form of having multiple sexual partners, paid sex in last 3 months and frequency of intercourse with irregular sexual partners and condom use with regular partners during last sexual act. Results: Among the study population, 74.3% reported not using a condom during their last vaginal intercourse with their regular partner. Regression estimates indicated that workers with high physical stressors had 6 times odds of having paid for sex in last 3 months and those with a moderate level of income related stress had 2.4 times likelihood of not using a condom during the last sexual intercourse with their regular partner. Conclusion: There is scope for starting prevention programs among young professionals in the IT/ITES sector to mitigate their possible risk behaviors. PMID:24421592

  3. Sexual discordance and sexual partnering among heterosexual women.

    PubMed

    Nield, Jennifer; Magnusson, Brianna; Brooks, Christopher; Chapman, Derek; Lapane, Kate L

    2015-05-01

    This study examined characteristics of self-identified heterosexual women who were concordant or discordant in their sexual behavior and the association of discordance and sexual partnering among those aged 15-44 years from the 2006-2010 National Survey of Family Growth (n = 7,353). Sexual concordance was defined as reporting a heterosexual identity and no female partners in the past year; discordance was reporting a heterosexual identity and having at least one female partner in the past year. Sexual partnering was defined as being concurrent, serially monogamous or monogamous with a male partner in the previous year. Polytomous logistic regression models evaluated the association between sexual discordance and sexual partnering. Among self-identified heterosexual, sexually active women, 11.2 % reported ever having had a same sex partner. Heterosexually discordant women who had both male and female partners in the previous year were 5.5 times as likely to report having a concurrent relationship (95 % CI 2.77-11.09) and 2.4 times as likely to report engaging in serially monogamous relationships (95 % CI 1.19-4.97) with male partners. Discordance between heterosexual identity and same sex behavior is a factor in risky behaviors. Women who have sex with women and men may act as bridges for the transmission of STDs, particularly to their female partners. Sexual education should include information inclusive of non-heteronormative behaviors and identities to provide sexual minorities with the tools and information they need. Clinical guidelines should ensure that all women are offered counseling and screening for reproductive and sexual health. PMID:24718674

  4. The Male Experience of Sexual Violence The FBI annual statistic on sexual assault finds that 1 in 8 men will be sexually

    E-print Network

    Machel, Hans

    assault. Fact: A person's sexual orientation does not change as a result of a sexual assault experience. Some survivors do feel confused about their sexual orientation after a sexual assault or sexual abuseThe Male Experience of Sexual Violence The FBI annual statistic on sexual assault finds that 1 in 8

  5. Sexually transmitted diseases.

    PubMed

    Bechtel, Mark A; Trout, Wayne

    2015-03-01

    Sexually transmitted diseases (STDs) continue to be a global epidemic with significant risk of morbidity/mortality for the fetus. STDs with prominent cutaneous findings including condylomata acuminata, genital herpes infections, and syphilis are reviewed. Important clinical cutaneous findings help aid early diagnosis and facilitate treatment. Condylomata acuminata have the potential of causing cervical cancer, anogenital cancer, and oropharyngeal cancer. Significant advances have been made in human papilloma virus vaccinations and treatment. Genital herpes infection can produce significant physical and emotional distress to the patient and significant potential harm to the fetus. Early clinical recognition of STDs and their appropriate management is critical. PMID:25565081

  6. Sexually Transmitted Infections.

    PubMed

    Smith, Lindsay; Angarone, Michael P

    2015-11-01

    Sexually transmitted infections (STIs) remain a significant burden on public health in the United States. Primary prevention counseling with early diagnosis and treatment remain the best methods to decrease the incidence of STIs. Through significant public heath interventions, the incidence of gonorrhea, Chlamydia, and trichomoniasis is decreasing; however, the incidence of primary and secondary syphilis is increasing. Human papilloma virus remains the most common STI, but new vaccinations have the possibility of having a significant impact on this virus's disease potential. This review discusses the most common STIs in the United States, focusing on clinical presentation, diagnosis, and treatment. PMID:26475947

  7. Sexual Assault of Adult Males.

    ERIC Educational Resources Information Center

    Stermac, Lana; And Others

    1996-01-01

    Examines the circumstances and characteristics of sexual assaults against adult males presenting to a crisis unit in a large metropolitan area. Most victims were young gay men, many of whom had physical or cognitive disabilities making them particularly vulnerable. Results suggest a need for increased awareness of acquaintance sexual assault in…

  8. Teacher Negotiations of Sexual Subjectivities

    ERIC Educational Resources Information Center

    Ferfolja, Tania

    2007-01-01

    Discrimination often silences and marginalizes those who do not conform to the dominant gender and (hetero)sexual discourses that operate in broader society. This discussion addresses the ways that seventeen self-identified lesbian teachers working in New South Wales (NSW) Australia negotiate their sexual subjectivities at work in order to pass or…

  9. Sexual Harassment: It's Not Academic

    ERIC Educational Resources Information Center

    US Department of Education, 2008

    2008-01-01

    Sexual harassment of students is illegal. A federal law, "Title IX of the Education Amendments of 1972" ("Title IX"), prohibits discrimination on the basis of sex, including sexual harassment, in education programs and activities. All public and private education institutions that receive any federal funds must comply with "Title IX." "Title IX"…

  10. Freshman Sexual Attitudes and Behavior.

    ERIC Educational Resources Information Center

    Nutt, Roberta L.; Sedlacek, William E.

    At the University of Maryland, 758 randomly selected incoming freshman students were administered an anonymous poll regarding their sexual attitudes and behavior. Results showed that the Maryland freshman generally resembled other U.S. college students in their sexual experience. Approximately half (52% of males, 46% of females) reported that they…

  11. Sexual Revictimization Revisited: A Commentary

    ERIC Educational Resources Information Center

    Gidycz, Christine A.

    2011-01-01

    Since the early 1990s, there has been an increase in scholarly work and theoretical writing on the topic of sexual revictimization--particularly of women. The foundation for this work was set earlier when it was noted that rape and sexual assault were traumatic, more widespread than anyone could ever imagine, and many adult rape victims had…

  12. Intervention Strategies for Sexual Abuse.

    ERIC Educational Resources Information Center

    Rencken, Robert H.

    This book provides a framework for understanding the dimensions (scope, taxonomy, philosophy) and dynamics (individual, familial, and societal) of child sexual abuse. The major focus is on integrated intervention strategies for any professional who must work with incomplete information. Chapter 1 provides an overview of the problem of child sexual

  13. Challenging Sexual Harassment on Campus

    ERIC Educational Resources Information Center

    Baker, Nancy V.

    2010-01-01

    More than thirty years ago, an administrative assistant at Cornell University first challenged her university's indifference to her boss's sexually predatory behavior. While she did not prevail, her case sparked a movement. Litigation, news stories, and government guidelines defining sexual harassment followed. And universities responded: policies…

  14. Firefighting Women and Sexual Harassment.

    ERIC Educational Resources Information Center

    Rosell, Ellen; And Others

    1995-01-01

    Survey responses were received from 37 of 103 department chiefs and 206 of 1,108 female firefighters. The 58% who reported sexual harassment indicated greater stress, sexual stereotyping, acts of violence, use of sick leave, and fear. Although most departments have a policy, over half of those harassed did not report incidents. (SK)

  15. Sexual reproduction in Aspergillus flavus

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Aspergillus flavus is the major producer of carcinogenic aflatoxins in crops worldwide and is also an important opportunistic human pathogen in aspergillosis. The sexual state of this heterothallic fungus is described from crosses between strains of the opposite mating type. Sexual reproduction oc...

  16. Sexual communication in romantic relationships: An investigation into the disclosure of sexual fantasies

    E-print Network

    Anderson, Michael

    2011-12-31

    that more frequent sexual fantasy contributes to greater sexual desire, more orgasms during intercourse, greater arousability, fewer sexual problems, and even greater sexual satisfaction in general. Researchers have also argued that sexual fantasies may... activity and enhanced sexual experiences. In addition, studies have reported a positive association between orgasmic frequency during sex and frequency of sexual fantasy (Armdt, Foehl, & Good, 1985; Epstein & Smith, 1957; Lentz & Zeiss, 1983; Wilson, 1978...

  17. Information on Sexuality for Young People and Their Families.

    ERIC Educational Resources Information Center

    Fitz-Gerald, Max

    The book was designed to be a reference material as part of a comprehensive sex education program or as a family resource book. The language and syntax of the book as well as the line drawing illustrations are geared specifically for hearing impaired young people and others whose need for information on human sexuality may be more advanced than…

  18. Classrooms and Courtrooms: Facing Sexual Harassment in K-12 Schools.

    ERIC Educational Resources Information Center

    Stein, Nan

    This book uses evidence gathered from legal, anecdotal, and survey-based sources to explore sexual harassment in K-12 schools. The text is divided into seven chapters. Chapters 1 and 2 use material from surveys, salient lawsuits, and students' stories to describe harassment and to elaborate on the contradictions and confusions that surround this…

  19. You and Me and Human Sexuality. Teacher's Manual.

    ERIC Educational Resources Information Center

    Young, Emily Morrill

    This teacher's manual is designed for teaching deaf adolescents about human sexuality. Each chapter is organized into topic objectives, large group content presentation strategies, small group activities, materials, and resources. Topics include: (1) relationships; (2) adolescent growth and development; (3) female and male anatomy; (4) conception,…

  20. Students Teach Sex Education: Introducing Alternative Conceptions of Sexuality

    ERIC Educational Resources Information Center

    Buck, Alison; Parrotta, Kylie

    2014-01-01

    In this paper, we describe an exercise that challenges hetero-normative and sexist notions of sexuality, allowing students to envision alternative models. Research shows how active learning eases student anxiety over challenging or threatening material. After reading Jessica Fields' "Risky Lessons" and Waskul, Vannini, and…

  1. Legal Barriers to Adolescent Participation in Research About HIV and Other Sexually Transmitted Infections.

    PubMed

    Moore, Quianta L; Paul, Mary E; McGuire, Amy L; Majumder, Mary A

    2016-01-01

    Whether adolescents can participate in clinical trials of pharmacologic therapies for HIV prevention, such as preexposure prophylaxis, without parental permission hinges on state minor consent laws. Very few of these laws explicitly authorize adolescents to consent to preventive services for HIV and other sexually transmitted infections. Unclear state laws may lead to research cessation. We have summarized legal, ethical, and policy considerations related to adolescents' participation in HIV and sexually transmitted infection prevention research in the United States, and we have explored strategies for facilitating adolescents' access. PMID:26562103

  2. Sexual selection protects against extinction.

    PubMed

    Lumley, Alyson J; Michalczyk, ?ukasz; Kitson, James J N; Spurgin, Lewis G; Morrison, Catriona A; Godwin, Joanne L; Dickinson, Matthew E; Martin, Oliver Y; Emerson, Brent C; Chapman, Tracey; Gage, Matthew J G

    2015-06-25

    Reproduction through sex carries substantial costs, mainly because only half of sexual adults produce offspring. It has been theorized that these costs could be countered if sex allows sexual selection to clear the universal fitness constraint of mutation load. Under sexual selection, competition between (usually) males and mate choice by (usually) females create important intraspecific filters for reproductive success, so that only a subset of males gains paternity. If reproductive success under sexual selection is dependent on individual condition, which is contingent to mutation load, then sexually selected filtering through 'genic capture' could offset the costs of sex because it provides genetic benefits to populations. Here we test this theory experimentally by comparing whether populations with histories of strong versus weak sexual selection purge mutation load and resist extinction differently. After evolving replicate populations of the flour beetle Tribolium castaneum for 6 to 7 years under conditions that differed solely in the strengths of sexual selection, we revealed mutation load using inbreeding. Lineages from populations that had previously experienced strong sexual selection were resilient to extinction and maintained fitness under inbreeding, with some families continuing to survive after 20 generations of sib × sib mating. By contrast, lineages derived from populations that experienced weak or non-existent sexual selection showed rapid fitness declines under inbreeding, and all were extinct after generation 10. Multiple mutations across the genome with individually small effects can be difficult to clear, yet sum to a significant fitness load; our findings reveal that sexual selection reduces this load, improving population viability in the face of genetic stress. PMID:25985178

  3. Large-scale, explicit wave simulations on the CRAY-2

    SciTech Connect

    Wojcik, G.L.; Vaughan, D.K.; Barenberg, M.; Mould, J.; Hulit, M.B.

    1988-01-01

    Most time-domain, wave problems in geophysics are intractable by classical analysis methods, due principally to non-separability and to a lesser extent material nonlinearity. Therefore, discrete numerical solutions are often necessary for the simulation of realistic models. Applications in 2-D and 3-D geophysical modeling are the subject of this paper, particularly as solved on a CRAY-2 supercomputer. Implementation and performance differences between earlier CRAYs and the CRAY-2 are described, including the discrepancy between scalar fetch and vector processing speeds. Explicit finite element solvers are applied to applications involving 2-D simulation of a seismic refraction experiment across the state of Maine, 3-D simulation of near-source scattering experiments, and both linear and nonlinear axisymmetric source simulation. Results show that the CRAY-2 allows cost-effective 2-D simulations of truly large-scale models, but only begins to be effective in 3-D for models of interest in geophysics. The large memory (256 megawords) is adequate but a speed increase of at least an order of magnitude is necessary for cost-effective 3-D. True multiprocessor capability (rather than 'multi-computer') provides an alternative to raw speed but involves another set of difficulties.

  4. The Relationship Among Sexual Attitudes, Sexual Fantasy, and Religiosity

    PubMed Central

    Ahrold, Tierney K.; Farmer, Melissa; Trapnell, Paul D.; Meston, Cindy M.

    2015-01-01

    Recent research on the impact of religiosity on sexuality has highlighted the role of the individual, and suggests that the effects of religious group and sexual attitudes and fantasy may be mediated through individual differences in spirituality. The present study investigated the role of religion in an ethnically diverse young adult sample (N = 1413, 69% women) using religious group as well as several religiosity domains: spirituality, intrinsic religiosity, paranormal beliefs, and fundamentalism. Differences between religious groups in conservative sexual attitudes were statistically significant but small; as predicted, spirituality mediated these effects. In contrast to the weak effects of religious group, spirituality, intrinsic religiosity, and fundamentalism were strong predictors of women’s conservative sexual attitudes; for men, intrinsic religiosity predicted sexual attitude conservatism but spirituality predicted attitudinal liberalism. For women, both religious group and religiosity domains were significant predictors of frequency of sexual fantasies while, for men, only religiosity domains were significant predictors. These results indicate that individual differences in religiosity domains were better predictors of sexual attitudes and fantasy than religious group and that these associations are moderated by gender. PMID:20364304

  5. Childhood Sexual Abuse and Sexual Risk Behavior among Men and Women Attending a Sexually Transmitted Disease Clinic

    ERIC Educational Resources Information Center

    Senn, Theresa E.; Carey, Michael P.; Vanable, Peter A.; Coury-Doniger, Patricia; Urban, Marguerite A.

    2006-01-01

    Childhood sexual abuse (CSA) is associated with a wide range of negative outcomes. The authors investigated the relation between CSA and sexual risk behavior in 827 patients recruited from a sexually transmitted disease (STD) clinic. Overall, CSA was reported by 53% of women and 49% of men and was associated with greater sexual risk behavior,…

  6. An Examination of Gender Role Identity, Sexual Self-Esteem, Sexual Coercion and Sexual Victimization in a University Sample

    ERIC Educational Resources Information Center

    Kelly, Theresa C.; Erickson, Chris D.

    2007-01-01

    The relationship between gender role identity, sexual self-esteem and sexual coercion was examined through a questionnaire. Participants were 84 undergraduate students from a university in Washington, DC. Contrary to what has been found in the literature, there were weak relationships between sexual coercion and masculinity, and sexual coercion…

  7. Explicit Momentum-conserving Integrator for Dynamics of Rigid Bodies

    E-print Network

    Krysl, Petr

    Explicit Momentum-conserving Integrator for Dynamics of Rigid Bodies Approximating the Midpoint Lie calculation, but only first-order in the time step. Both of these algorithms are momentum-conserving and both as a composition of these two variants. The resulting algorithm is then explicit, momentum-conserving, symplectic

  8. Explicit Knowledge and Learning in SLA: A Cognitive Linguistics Perspective

    ERIC Educational Resources Information Center

    Roehr, Karen

    2010-01-01

    SLA researchers agree that explicit knowledge and learning play an important role in adult L2 development. In the field of cognitive linguistics, it has been proposed that implicit and explicit knowledge differ in terms of their internal category structure and the processing mechanisms that operate on their representation in the human mind. It has…

  9. Precipitation distributions for explicit versus parameterized convection in a

    E-print Network

    Wirosoetisno, Djoko

    Precipitation distributions for explicit versus parameterized convection in a large-domain high.J. and Lister, G.M.S. (2012) Precipitation distributions for explicit versus parameterized convection in a large convection in a large-domain high-resolution tropical case study C. E. Holloway,a * S. J. Woolnougha and G. M

  10. Explicit and implicit memory bias in panic disorder with agoraphobia.

    PubMed

    Lundh, L G; Czyzykow, S; Ost, L G

    1997-11-01

    Thirty patients with a diagnosis of panic disorder with agoraphobia and 30 normal controls were compared on explicit memory (cued recall) and implicit memory (word stem completion) for positive, neutral, social threat, and physical threat words. The panic patients showed an explicit memory bias, but no implicit memory bias, for physical threat words. The index of explicit memory bias for physical threat words was found to correlate with anxiety sensitivity and degree of agoraphobic fear and avoidance. The index of baseline bias for threat words on the word completion task, on the other hand, correlated with trait anxiety. Although there were no correlations between explicit and implicit memory bias for physical threat words, explicit memory bias for physical threat words correlated with explicit memory bias indexes for positive words and social threat words. The results are discussed in terms of the functional role of an explicit memory bias for physically threatening events in panic disorder. The negative results on implicit memory bias are discussed in relation to earlier studies, the use of different implicit memory tasks, and the role of baseline bias on implicit memory tasks. Finally, the hypothesis is suggested that explicit and implicit memory bias for emotional information may represent two different styles of information processing, which serve as vulnerability factors for different emotional disorders. PMID:9431730

  11. A -calculus a la de Bruijn with explicit substitutions

    E-print Network

    Kamareddine, Fairouz

    A -calculus a la de Bruijn with explicit substitutions 7th international conference on Programming of this paper is to present the s-calculus which is a very simple -calculus with explicit substitutions prove strong normalisation of the corresponding calculus of substitution by translating

  12. Multi-threaded Explicit State Space Exploration with State Reconstruction

    E-print Network

    Evangelista, Sami

    Multi-threaded Explicit State Space Exploration with State Reconstruction Sami Evangelista1. This article introduces a parallel state space exploration algorithm for shared memory multi-core architectures factor for the practical use of standard explicit state space exploration. For complex systems, like

  13. Redefining implicit and explicit memory: The functional neuroanatomy of priming,

    E-print Network

    Henson, Rik

    and consciousness, which often equate consciousness with control. The neuroscience of human memory has been dominated by distinctions between forms of memory that involve different kinds of consciousness. Foremost is the distinction between explicit and implicit memory (1). Explicit memory involves conscious remembering of prior

  14. Memory Management with Explicit Regions David Edward Gay

    E-print Network

    Pratt, Vaughan

    Memory Management with Explicit Regions by David Edward Gay Engineering Diploma (Ecole dissertation of David Edward Gay is approved: Chair Date Date Date University of California at Berkeley Fall 2001 #12;Memory Management with Explicit Regions Copyright 2001 by David Edward Gay #12;1 Abstract

  15. The Ms. Stereotype Revisited: Implicit and Explicit Facets

    ERIC Educational Resources Information Center

    Malcolmson, Kelly A.; Sinclair, Lisa

    2007-01-01

    Implicit and explicit stereotypes toward the title Ms. were examined. Participants read a short description of a target person whose title of address varied (Ms., Mrs., Miss, Mr.). They then rated the person on agentic and communal traits and completed an Implicit Association Test. Replicating earlier research (Dion, 1987), at an explicit level,…

  16. Chinese Undergraduates' Explicit and Implicit Attitudes toward Persons with Disabilities

    ERIC Educational Resources Information Center

    Chen, Shuang; Ma, Li; Zhang, Jian-Xin

    2011-01-01

    The present study is aimed at examining implicit and explicit attitudes toward persons with disabilities among Chinese college students. The "Implicit Association Test" was used to measure their implicit attitudes, whereas their explicit attitudes toward persons with disabilities were measured by using a scale of three items. Participants were 56…

  17. Empirical Bayes Least Squares Estimation without an Explicit Prior

    E-print Network

    Simoncelli, Eero

    Empirical Bayes Least Squares Estimation without an Explicit Prior Martin Raphan Courant Inst constructed using an explicit prior model. In many applications, one does not have such a model prior models. 1 Introduction Denoising is a classic signal processing problem, and Bayesian methods can

  18. Explicit boundary form factors: the scaling Lee-Yang model

    E-print Network

    L. Hollo; Z. B. Laczko; Z. Bajnok

    2014-07-26

    We provide explicit expressions for boundary form factors in the boundary scaling Lee-Yang model for operators with the mildest ultraviolet behavior for all integrable boundary conditions. The form factors of the boundary stress tensor take a determinant form, while the form factors of the boundary primary field contain additional explicit polynomials.

  19. BANANAS: A Connectionless Framework for Explicit, Multipath Routing in the

    E-print Network

    Kalyanaraman, Shivkumar

    1 BANANAS: A Connectionless Framework for Explicit, Multipath Routing in the Internet H This paper presents BANANAS, a connectionless framework for enabling explicit, multipath routing in the Inter- net. BANANAS uses the idea of a globally known path identifier, known as PathID to achieve source 1

  20. Adolescent's sexual problems in Korea.

    PubMed

    Kang, B S

    1990-07-01

    This article discusses primary contributors of sexual problems among Korean adolescents. As a result of improved nutrition, physical maturity is occurring at an earlier age in Korean youths. On the other hand, marital age has increased; the average age for males to marry is 27.3 years and 24.1 years in females. Hence, these factors extend the time frame between onset of sexual maturity and marriage. Enrollment in schools has risen; middle school registration has increased from 74.2% in 1975 to 99.7% in 1985 and from 43.6% to 78.3% in high schools. Increased enrollment has also been observed at the university level which may promote prolonged educational periods; this focus on education may reduce sexual interest among students. Improved employment opportunities may also influence sexual behavior among adolescents; urban migration can encourage casual relationships. Changes in family structure and sexual morals has promoted liberal attitudes regarding sexual practices. Increased exposure to mass media has affected adolescent sexual problems; 99.1% of the households in 1985 possessed televisions. These sexual problems include onset of sexual intercourse at an earlier age, unwanted pregnancies, increased induced abortions, and early childbirth. Overall, sexual activity in females has risen from 3.6% in 1965 to 14.5% in 1981 and from 18.5% in 1971 for males to 27.7% in 1981. Pre-marital pregnancy rates have continually increased since 1950; this has resulted in a rise of unwed mothers' consultations which reflects adolescent childbirths. Sex-related crime have also increased; rape ranks 3rd in crimes committed by Korean youth. Sex education and family planning should be provided for adolescents. Furthermore, counseling services should be available to youth regarding unwanted pregnancies, sexually transmitted diseases, and contraception. The Planned Parenthood Federation of Korea provides youth sex telephone services in which adolescents can acquire information on sexual matters. Proposals needing implementation include family life education for parents and their children, sex education and counseling within the school systems, treatment centers for sexually transmitted diseases and pre/post natal care, and youth counseling centers. PMID:12316430

  1. Explicit- and implicit bullying attitudes in relation to bullying behavior.

    PubMed

    van Goethem, Anne A J; Scholte, Ron H J; Wiers, Reinout W

    2010-08-01

    The main aim of this study was to examine whether an assessment of implicit bullying attitudes could add to the prediction of bullying behavior after controlling for explicit bullying attitudes. Primary school children (112 boys and 125 girls, M age = 11 years, 5 months) completed two newly developed measures of implicit bullying attitudes (a general Implicit Association Test on bullying and a movie-primed specific IAT on bullying), an explicit bullying attitude measure, and self reported, peer reported, and teacher rated bullying behavior. While explicit bullying attitudes predicted bullying behavior, implicit attitudes did not. However, a significant interaction between implicit and explicit bullying attitudes indicated that in children with relatively positive explicit attitudes, implicit bullying attitudes were important predictors of bullying behavior. Theoretical and practical implications are discussed. PMID:20352324

  2. A cross-sectional study of factors associated with adolescent sexual activity

    PubMed Central

    Shashikumar, R.; Das, R. C.; Prabhu, H. R. A.; Srivastava, K.; Bhat, P. S.; Prakash, J.; Seema, P.

    2012-01-01

    Context: Adolescents constitute about 20% of our population and increasingly more of them are initiating sexual activity at an early age. Several behaviors associated with adolescence like masturbation, expression of masculinity/femininity, lifestyle habits like attending late night parties, and consumption of alcohol have been variously implicated in initiating sexual activities. Sexual abuse can also lead to premature sexualization. In view of few worthwhile studies from India that have dealt with these issues this study was undertaken. Aims: To elicit information from two co-education schools adolescent boys and girls on matters related to pubescence, sexual experiences, and sexual health. Settings and Design: Study subjects involved students from class IX to XII in two co-education schools. Consent of parents was taken to administer the questionnaire to their wards. Materials and Methods: A total of 586 out of 1580 students completed a self-reporting questionnaire on matters related to sexuality. Statistical Analysis EpiInfo6 Software was used. Results: Significant association was found among those holding the view that having sex proves their masculinity, being sexually abused, masturbation among boys, and sexual activity. A significantly large number of boys and girls are unaware of role of alcohol on sexual activity and that pregnancy can be caused by single intercourse. Conclusions: This was probably the first such comparative study from India. Mechanisms need to be evaluated to help adolescents understand their sexual attitudes and situations that are likely to provoke sexual activity. Therefore, not only more detailed and longitudinal studies are needed to understand these relations in a better perspective, but also a well-planned educational program for adolescents is a need of the hour. PMID:22988320

  3. Sexual practices in Malaysia: determinants of sexual intercourse among unmarried youths.

    PubMed

    Zulkifli, S N; Low, W Y

    2000-10-01

    This paper describes findings on selected determinants of sexual intercourse among 468 unmarried adolescents from a survey in Malaysia. Data on respondents' background, sexual experience, contraceptive use, and sexual attitudes are provided. Based on multiple logistic regressions, factors significantly predictive of sexual experience are gender, employment, and sexual attitudes. PMID:11008091

  4. Positive and negative cognitions of sexual submission: relationship to sexual violence.

    PubMed

    Renaud, Cheryl A; Byers, Sandra E

    2006-08-01

    This study investigated gender differences in cognitions of sexual submission as well as their association with sexual violence. Participants were 292 heterosexual undergraduate students who completed a 56-item checklist assessing positive and negative sexual cognitions; they also completed measures assessing experiences of sexual abuse in childhood, experiences of sexual coercion in adulthood, and use of sexual coercion. Two 10-item sexual submission subscales were developed from the checklist. One reflected how often respondents had experienced the sexual submission items as positive. The other reflected how often these items were experienced as negative. When overall frequency of sexual cognitions was controlled, compared to the men, the women reported a significantly greater frequency of both positive and negative cognitions of sexual submission. Submission cognitions were more often negative for women and were more often positive for men. Men and women who had experienced sexual abuse in childhood reported more frequent positive sexual submission cognitions but not more negative sexual submission cognitions. Conversely, men and women who had experienced sexual coercion in adulthood reported more frequent negative sexual submission cognitions but not more positive sexual submission cognitions. Having used sexual coercion was associated with more frequent positive cognitions of sexual submission for both men and women. Implications for the proposed links between sexual violence and preferences for cognitions of sexual submission are discussed. PMID:16909319

  5. Differences between Sexually Victimized and Nonsexually Victimized Male Adolescent Sexual Abusers: Developmental Antecedents and Behavioral Comparisons

    ERIC Educational Resources Information Center

    Burton, David L.; Duty, Kerry Jo; Leibowitz, George S.

    2011-01-01

    This study compares sexually victimized and nonsexually victimized male adolescent sexual abusers on a number of variables. Self-report measures were administered to 325 male sexually abusive youth (average age 16) in six residential facilities in the Midwest, 55% of whom reported sexual victimization. The results indicate that the sexually

  6. talking about Sexual iSSueS: gender and Sexual orientation

    E-print Network

    Sexual issues, do health professional and patient genders Matter? When talking about sexual issues the importance of gender mean that male health professionals are unable to comprehend the sexual experiencesChapter 7 talking about Sexual iSSueS: gender and Sexual orientation Intuitively, there might seem

  7. The structural influence of family and parenting on young people's sexual and reproductive health in rural northern Tanzania

    PubMed Central

    Wamoyi, Joyce; Wight, Daniel; Remes, Pieter

    2015-01-01

    This paper explores the structural role of the family and parenting in young people's sexual and reproductive health. The study involved eight weeks of participant observation, 26 in-depth interviews, and 11 group discussions with young people aged 14–24 years, and 20 in-depth interviews and 6 group discussions with parents/carers of children in this age group. At an individual level, parenting and family structure were found to affect young people's sexual behaviour by influencing children's self-confidence and interactional competence, limiting discussion of sexual health and shaping economic provision for children, which in turn affected parental authority and daughters' engagement in risky sexual behaviour. Sexual norms are reproduced both through parents' explicit prohibitions and their own behaviours. Girls are socialised to accept men's superiority, which shapes their negotiation of sexual relationships. Interventions to improve young people's sexual and reproductive health should recognise the structural effects of parenting, both in terms of direct influences on children and the dynamics by which structural barriers such as gendered power relations and cultural norms around sexuality are transmitted across generations. PMID:25597368

  8. Sexual Harassment: What Your Staff Should Know.

    ERIC Educational Resources Information Center

    Shulman, Jacqueline T.

    1995-01-01

    An attorney provides the legal background for sexual harassment suits. Defines actions that school administrators can take to limit exposure to a charge of sexual harassment or to provide a good defense once a charge has been filed. Contains a sample effective sexual harassment policy and a 17-item sexual harassment quiz. (MLF)

  9. Sexual Harassment: State of the Law.

    ERIC Educational Resources Information Center

    Culverhouse, Renee D.

    Sexual harassment under the Equal Employment Opportunity Commission guidelines involves unwelcome sexual advances, requests for sexual favors, or other verbal or physical conduct of a sexual nature, as it applies to males or females in business situations. Harassment is discriminatory when females must act differently than males in order to…

  10. Flibanserin for female sexual dysfunction.

    PubMed

    Reviriego, C

    2014-08-01

    Hypoactive sexual desire disorder (HSDD) is the most commonly described form of female sexual dysfunction. There is currently no pharmacological therapy approved to treat HSDD, and therefore, there is an unmet medical need for the development of efficacious treatment alternatives. Flibanserin is a novel, non-hormonal drug for the treatment of HSDD in pre- and postmenopausal women, although the application submitted to the U.S. Food and Drug Administration by Sprout Pharmaceuticals is only for premenopausal women. Flibanserin works by correcting an imbalance of the levels of the neurotransmitters that affect sexual desire. More specifically, flibanserin increases dopamine and norepinephrine, both responsible for sexual excitement, and decreases serotonin, responsible for sexual inhibition. Clinically, flibanserin has exhibited some encouraging results in terms of its ability to increase the frequency of satisfying sexual events, and the intensity of sexual desire. However, adverse events such as dizziness, nausea, fatigue and somnolence, typical of a centrally acting drug, are also frequently related to flibanserin treatment. PMID:25187905

  11. The sexually abused battered child.

    PubMed

    Hobbs, C J; Wynne, J M

    1990-04-01

    A total of 130 children were identified in whom both evidence of sexual abuse and non-accidental, non-genital physical injuries (bruises, fractures, scratches, burns and scalds, including failure to thrive) were found. There were 77 girls and 53 boys with mean ages 5.7 and 6.8 years respectively and the peak age between the second and seventh birthdays; this reflects previous reports indicating that physical and sexual abuse predominantly involves young children. Patterns of injury that suggested sexually motivated assault included bruises, scratches, and burns around the lower trunk and genitalia, thighs, buttocks, and upper legs including knees. Pinch and grip marks were found where the child was held. The sexual abuse often involved attempted or achieved penetration of mouth, vagina, or anus, and physical signs were seen relatively more often than in sexually abused children as a whole. Four children died and sexual aggression and child death in the domestic setting may be linked. One in six of 769 physically abused children (16.9%) and one in seven of 949 sexually abused children (13.6%) have suffered both forms of abuse. PMID:2346335

  12. Sexual dimorphism in flowering plants.

    PubMed

    Barrett, Spencer C H; Hough, Josh

    2013-01-01

    Among dioecious flowering plants, females and males often differ in a range of morphological, physiological, and life-history traits. This is referred to as sexual dimorphism, and understanding why it occurs is a central question in evolutionary biology. Our review documents a range of sexually dimorphic traits in angiosperm species, discusses their ecological consequences, and details the genetic and evolutionary processes that drive divergence between female and male phenotypes. We consider why sexual dimorphism in plants is generally less well developed than in many animal groups, and also the importance of sexual and natural selection in contributing to differences between the sexes. Many sexually dimorphic characters, including both vegetative and flowering traits, are associated with differences in the costs of reproduction, which are usually greater in females, particularly in longer-lived species. These differences can influence the frequency and distribution of females and males across resource gradients and within heterogeneous environments, causing niche differences and the spatial segregation of the sexes. The interplay between sex-specific adaptation and the breakdown of between-sex genetic correlations allows for the independent evolution of female and male traits, and this is influenced in some species by the presence of sex chromosomes. We conclude by providing suggestions for future work on sexual dimorphism in plants, including investigations of the ecological and genetic basis of intraspecific variation, and genetic mapping and expression studies aimed at understanding the genetic architecture of sexually dimorphic trait variation. PMID:23183260

  13. Selective advantage for sexual reproduction

    NASA Astrophysics Data System (ADS)

    Tannenbaum, Emmanuel

    2006-06-01

    This paper develops a simplified model for sexual reproduction within the quasispecies formalism. The model assumes a diploid genome consisting of two chromosomes, where the fitness is determined by the number of chromosomes that are identical to a given master sequence. We also assume that there is a cost to sexual reproduction, given by a characteristic time ?seek during which haploid cells seek out a mate with which to recombine. If the mating strategy is such that only viable haploids can mate, then when ?seek=0 , it is possible to show that sexual reproduction will always out compete asexual reproduction. However, as ?seek increases, sexual reproduction only becomes advantageous at progressively higher mutation rates. Once the time cost for sex reaches a critical threshold, the selective advantage for sexual reproduction disappears entirely. The results of this paper suggest that sexual reproduction is not advantageous in small populations per se, but rather in populations with low replication rates. In this regime, the cost for sex is sufficiently low that the selective advantage obtained through recombination leads to the dominance of the strategy. In fact, at a given replication rate and for a fixed environment volume, sexual reproduction is selected for in high populations because of the reduced time spent finding a reproductive partner.

  14. Selective advantage for sexual reproduction

    NASA Astrophysics Data System (ADS)

    Tannenbaum, Emmanuel

    2006-03-01

    We develop a simplified model for sexual replication within the quasispecies formalism. We assume that the genomes of the replicating organisms are two-chromosomed and diploid, and that the fitness is determined by the number of chromosomes that are identical to a given master sequence. We also assume that there is a cost to sexual replication, given by a characteristic time ?seek during which haploid cells seek out a mate with which to recombine. If the mating strategy is such that only viable haploids can mate, then when ?seek= 0 , it is possible to show that sexual replication will always outcompete asexual replication. However, as ?seek increases, sexual replication only becomes advantageous at progressively higher mutation rates. Once the time cost for sex reaches a critical threshold, the selective advantage for sexual replication disappears entirely. The results of this talk suggest that sexual replication is not advantageous in small populations per se, but rather in populations with low replication rates. In this regime, the cost for sex is sufficiently low that the selective advantage obtained through recombination leads to the dominance of the strategy. In fact, at a given replication rate and for a fixed environment volume, sexual replication is selected for in high populations because of the reduced time spent finding a reproductive partner.

  15. The sexually sadistic serial killer.

    PubMed

    Warren, J I; Hazelwood, R R; Dietz, P E

    1996-11-01

    This article explores characteristics and crime scene behavior of 20 sexually sadistic serial murderers. The pairing of character pathology with paraphilic arousal to the control and degradation of others is examined as it manifests itself in their murders. Commonalities across murders and across murderers are highlighted, i.e., the execution of murders that are well-planned, the use of preselected locations, captivity, a variety of painful sexual acts, sexual bondage, intentional torture, and death by means of strangulation and stabbing. PMID:8914287

  16. Evaluating child sexual abuse.

    PubMed

    Giardino, Angelo P; Finkel, Martin A

    2005-05-01

    We have learned much about the medical evaluation of suspected child sexual abuse during the past 2 decades. The physical examination still holds an important place in the evaluation but is secondary to a well-performed history. As the evolving literature increases our understanding, the relevance of various anatomic appearances of the prepubertal and pubertal genital examination will certainly become even clearer. The physical examination rarely is diagnostic by itself, with more than 92% of cases failing to demonstrate either acute or chronic signs of injury. Thus, the 1994 quote by Adams and colleagues, "It's normal to be normal," continues to ring true, now supported by a growing body of pediatric literature. PMID:15948349

  17. [Sexuality, heart and chocolate].

    PubMed

    Bianchi-Demicheli, F; Sekoranja, L; Pechère-Bertschi, A

    2013-03-20

    All along the history, many kinds of magic and aphrodisiac properties were attributed to the chocolate. Because of the presence of certain active substances, cacao and chocolate are supposed to have some potentially beneficial effects on human health, particularly on cardiovascular system. Containing flavoniods, cacao and its products have antioxidant, anti-inflammatory, anti-atherogenic, anti-thrombotic, antihypertensive and neuroprotective effects, as well as influence on insulin sensitivity, vascular endothelial function, and activation of nitric oxide. Other molecules, like methyxantin, biogenic amines and cannabinoid-like fatty acids, may have a psychoactive action. Synergic effect of all these substances could have a positive direct and indirect influence on sexual health and function. Nevertheless, randomized studies are needed to confirm these hypotheses and to elaborate recommendations about cacao consumption. PMID:23547364

  18. Sexual revictimization, PTSD, and problem drinking in sexual assault survivors.

    PubMed

    Ullman, Sarah E

    2016-02-01

    Posttraumatic stress disorder (PTSD) and problem drinking are common and often co-occurring sequelae experienced by women survivors of adult sexual assault, yet revictimization may mediate risk of symptoms over time. Structural equation modeling was used to examine data from a 3-wave panel design with a large (N=1012), ethnically diverse sample of women assault survivors to examine whether repeated sexual victimization related to greater PTSD and problem drinking. Structural equation modeling revealed that child sexual abuse was associated with greater symptoms of PTSD and problem drinking and intervening sexual victimization was associated with greater symptoms of PTSD and problem drinking at both 1 and 2year follow-ups. We found no evidence, however, that PTSD directly influenced problem drinking over the long term or vice versa, although they were correlated at each timepoint. Revictimization during the study predicted survivors' prospective PTSD and problem drinking symptoms inconsistently. Implications and recommendations for future research are discussed. PMID:26414205

  19. Sexual Offender Laws and Prevention of Sexual Violence or Recidivism

    PubMed Central

    2010-01-01

    Sexual violence is a significant public health problem in the United States. In an effort to decrease the incidence of sexual assault, legislators have passed regulatory laws aimed at reducing recidivism among convicted sexual offenders. As a result, sex offenders living in the United States are bound by multiple policies, including registration, community notification, monitoring via a global positioning system, civil commitment, and residency, loitering, and Internet restrictions. These policies have led to multiple collateral consequences, creating an ominous environment that inhibits successful reintegration and may contribute to an increasing risk for recidivism. In fact, evidence on the effectiveness of these laws suggests that they may not prevent recidivism or sexual violence and result in more harm than good. PMID:20075329

  20. Consequences of clonality for sexual fitness: Clonal expansion enhances fitness under spatially restricted dispersal

    PubMed Central

    Van Drunen, Wendy E.; van Kleunen, Mark; Dorken, Marcel E.

    2015-01-01

    Clonality is a pervasive feature of sessile organisms, but this form of asexual reproduction is thought to interfere with sexual fitness via the movement of gametes among the modules that comprise the clone. This within-clone movement of gametes is expected to reduce sexual fitness via mate limitation of male reproductive success and, in some cases, via the production of highly inbred (i.e., self-fertilized) offspring. However, clonality also results in the spatial expansion of the genetic individual (i.e., genet), and this should decrease distances gametes and sexually produced offspring must travel to avoid competing with other gametes and offspring from the same clone. The extent to which any negative effects of clonality on mating success might be offset by the positive effects of spatial expansion is poorly understood. Here, we develop spatially explicit models in which fitness was determined by the success of genets through their male and female sex functions. Our results indicate that clonality serves to increase sexual fitness when it is associated with the outward expansion of the genet. Our models further reveal that the main fitness benefit of clonal expansion might occur through the dispersal of offspring over a wider area compared with nonclonal phenotypes. We conclude that, instead of interfering with sexual reproduction, clonal expansion should often serve to enhance sexual fitness. PMID:26195748

  1. Consequences of clonality for sexual fitness: Clonal expansion enhances fitness under spatially restricted dispersal.

    PubMed

    Van Drunen, Wendy E; van Kleunen, Mark; Dorken, Marcel E

    2015-07-21

    Clonality is a pervasive feature of sessile organisms, but this form of asexual reproduction is thought to interfere with sexual fitness via the movement of gametes among the modules that comprise the clone. This within-clone movement of gametes is expected to reduce sexual fitness via mate limitation of male reproductive success and, in some cases, via the production of highly inbred (i.e., self-fertilized) offspring. However, clonality also results in the spatial expansion of the genetic individual (i.e., genet), and this should decrease distances gametes and sexually produced offspring must travel to avoid competing with other gametes and offspring from the same clone. The extent to which any negative effects of clonality on mating success might be offset by the positive effects of spatial expansion is poorly understood. Here, we develop spatially explicit models in which fitness was determined by the success of genets through their male and female sex functions. Our results indicate that clonality serves to increase sexual fitness when it is associated with the outward expansion of the genet. Our models further reveal that the main fitness benefit of clonal expansion might occur through the dispersal of offspring over a wider area compared with nonclonal phenotypes. We conclude that, instead of interfering with sexual reproduction, clonal expansion should often serve to enhance sexual fitness. PMID:26195748

  2. Relating Sexual Sadism and Psychopathy to One Another, Non-Sexual Violence, and Sexual Crime Behaviors

    PubMed Central

    Robertson, Carrie A.; Knight, Raymond A.

    2014-01-01

    Sexual sadism and psychopathy have been theoretically, clinically, and empirically linked to violence. Although both constructs are linked to predatory violence, few studies have sought to explore the covariation of the two constructs, and even fewer have sought to conceptualize the similarities of violence prediction in each. The current study considered all four Psychopathy Checklist-Revised (PCL-R) facets and employed well-defined, validated measures of sadism to elucidate the relation between sadism and psychopathy, as well as to determine the role of each in the prediction of non-sexual violence and sexual crime behaviors. Study 1 assessed 314 adult, male sex offenders using archival ratings, as well as the self-report Multidimensional Inventory of Development, Sex, and Aggression (the MIDSA). Study 2 used archival ratings to assess 599 adult, male sex offenders. Exploratory and confirmatory factor analyses of crime scene descriptions yielded four sexual crime behavior factors: Violence, Physical Control, Sexual Behavior, and Paraphilic. Sadism and psychopathy covaried, but were not coextensive; sadism correlated with Total PCL-R, Facet 1, and Facet 4 scores. The constructs predicted all non-sexual violence measures, but predicted different sexual crime behavior factors. The PCL-R facets collectively predicted the Violence and Paraphilic factors, whereas sadism only predicted the Violence factor. PMID:24019144

  3. Sexual Compulsivity and Sexual Risk in Gay and Bisexual Men

    PubMed Central

    Grov, Christian; Parsons, Jeffrey T.; Bimbi, David S.

    2010-01-01

    Much of our understanding of the association between the Sexual Compulsivity Scale (SCS; Kalichman et al., 1994) and sexual risk behavior among men who have sex with men (MSM) has been limited to samples of HIV positive MSM only. Using data from a community-based survey of gay and bisexual men (n = 1214), this analysis sought to further evaluate the association between the SCS and sexual risk behavior. The SCS was significantly associated with a variety of sexual risk behaviors, including having sex under the influence of club drugs, engaging in unprotected anal sex (receptive or insertive) with partners of the same and/or different HIV serostatus, identity as a barebacker, intentions to have bareback sex, number of recent sex partners, and temptation for unsafe sex. The SCS was also significantly associated with having engaged in a variety of specialized sexual behaviors (i.e., fetishes), many of which can increase HIV transmission risks. Finally, in multivariate analyses, the SCS significantly predicted unprotected sex with a non-main partner even when controlling for race, HIV serostatus, age, identity as a barebacker, and club drug use. These data indicate that the SCS may be able to serve as an indicator to detect HIV-associated sexual risk behavior in community-based samples of gay and bisexual men. PMID:19308715

  4. Intralocus Sexual Conflict Diminishes the Benefits of Sexual Selection

    PubMed Central

    Pischedda, Alison; Chippindale, Adam K

    2006-01-01

    Evolution based on the benefits of acquiring “good genes” in sexual selection is only plausible with the reliable transmission of genetic quality from one generation to the next. Accumulating evidence suggests that sexually antagonistic (SA) genes with opposite effects on Darwinian fitness when expressed in the two different sexes may be common in animals and plants. These SA genes should weaken the potential indirect genetic benefits of sexual selection by reducing the fitness of opposite-sex progeny from high-fitness parents. Here we use hemiclonal analysis in the fruit fly, Drosophila melanogaster, to directly measure the inheritance of fitness across generations, over the entire genome. We show that any potential genetic benefits of sexual selection in this system are not merely weakened, but completely reversed over one generation because high-fitness males produce low-fitness daughters and high-fitness mothers produce low-fitness sons. Moreover, male fitness was not inherited by sons, consistent with both theory and recent evidence connecting this form of SA variation with the X chromosome. This inheritance pattern may help to explain how genetic variation for fitness is sustained despite strong sexual selection, and why the ZW sex chromosome system found in birds and butterflies appears to foster the evolution of extreme secondary sexual characters in males. PMID:17105343

  5. Intralocus sexual conflict diminishes the benefits of sexual selection.

    PubMed

    Pischedda, Alison; Chippindale, Adam K

    2006-11-01

    Evolution based on the benefits of acquiring "good genes" in sexual selection is only plausible with the reliable transmission of genetic quality from one generation to the next. Accumulating evidence suggests that sexually antagonistic (SA) genes with opposite effects on Darwinian fitness when expressed in the two different sexes may be common in animals and plants. These SA genes should weaken the potential indirect genetic benefits of sexual selection by reducing the fitness of opposite-sex progeny from high-fitness parents. Here we use hemiclonal analysis in the fruit fly, Drosophila melanogaster, to directly measure the inheritance of fitness across generations, over the entire genome. We show that any potential genetic benefits of sexual selection in this system are not merely weakened, but completely reversed over one generation because high-fitness males produce low-fitness daughters and high-fitness mothers produce low-fitness sons. Moreover, male fitness was not inherited by sons, consistent with both theory and recent evidence connecting this form of SA variation with the X chromosome. This inheritance pattern may help to explain how genetic variation for fitness is sustained despite strong sexual selection, and why the ZW sex chromosome system found in birds and butterflies appears to foster the evolution of extreme secondary sexual characters in males. PMID:17105343

  6. Explicitly guided attentional bias modification promotes attentional disengagement from negative stimuli.

    PubMed

    Nishiguchi, Yuki; Takano, Keisuke; Tanno, Yoshihiko

    2015-12-01

    [Correction Notice: An Erratum for this article was reported in Vol 15(6) of Emotion (see record 2015-53689-001). In this article, there was an error in the first paragraph of "Materials and Tasks" from the Methods section. Corrections to the first paragraph are included. All versions of this article have been corrected.] Previous studies have shown that attentional bias modification (ABM) is effective in reducing negative attentional biases. However, the mechanisms underlying how ABM effectively reduces negative attentional biases are still unclear. In the present study, we conducted an ABM procedure that included a 3-day training session with a sample of nonclinical participants (N = 40) to investigate the effect of ABM on emotional and nonemotional attentional biases. Participants completed a modified dot-probe task with 2 different instructions (explicit or standard) during the training; their attentional biases were tested before and after the training. Only participants trained with explicit instructions showed a reduction in negative attentional biases in dot-probe task and an improvement in attentional disengagement from negative stimuli in gap-overlap task. On the other hand, attention toward nonemotional stimuli was only marginally improved by training with both explicit and standard instructions. These results indicate that explicit instructions may promote ABM training. (PsycINFO Database Record PMID:25938610

  7. Gender-Based Misconduct Policies for Students (including Sexual Assault, Sexual Harassment Gender-Based

    E-print Network

    Vecer, Jan

    Gender-Based Misconduct Policies for Students (including Sexual Assault, Sexual Harassment Gender for Gender-Based and Sexual Misconduct | August 2013 #12;ii | P a g e Table of Contents Introduction......................................................................................................................... 2 Examples of Gender-Based Misconduct

  8. The association of sexual interest and sexual behaviors among adolescent women: A daily diary perspective

    PubMed Central

    Fortenberry, J. Dennis; Hensel, Devon J.

    2011-01-01

    Theoretical and empirical linkages of adult women’s sexual interest and sexual behaviors are relatively well-established, but few data address similar issues in adolescent women. This paper reviews data from published reports of associations of adolescent women’s sexual interest and various sexual behaviors. All of the papers reported data collected from a single longitudinal cohort of young women. The primary source of data collection was daily diaries, allowing close temporal pairing of sexual interest with sexual behaviors. Young women’s sexual interest on a given day was consistently and independently associated with sexual activity on that day, whether the behavior was first lifetime coitus, coitus, fellatio, cunnilingus, anal intercourse, or coitus during menses. We also found no evidence of influence of hormonal contraceptives on young women’s sexual interest. Taken together, these data demonstrate the relevance of sexual interest as a key factor in young women’s sexuality and sexual behavior. PMID:21397605

  9. The Developmental Association of Sexual Self-Concept with Sexual Behavior among Adolescent Women

    PubMed Central

    Hensel, Devon J.; Fortenberry, J. Dennis; O’Sullivan, Lucia F.; Orr, Donald P.

    2013-01-01

    Developing a sexual self-concept is an important developmental task of adolescence; however, little empirical evidence describes this development, nor how these changes are related to development in sexual behavior. Using longitudinal cohort data from adolescent women, we invoked latent growth curve analysis to: (1) examine reciprocal development in sexual self-concept (sexual openness, sexual esteem and sexual anxiety) over a four year time frame; (2) describe the relationship of these trajectories with changes in sexual behavior. We found significant transactional effects between these dimensions and behavior: sexual self-concept evolved during adolescence in a manner consistent with less reserve, less anxiety and greater personal comfort with sexuality and sexual behavior. Moreover, we found that sexual self-concept results from sexual behavior, as well as regulates future behavior. PMID:20970178

  10. The negotiation of sexual relationships among school pupils in south-western Uganda.

    PubMed

    Nyanzi, S; Pool, R; Kinsman, J

    2001-02-01

    The objective of the study was to explore how school-going adolescents in south-western Uganda negotiate sexual relationships. Qualitative data were obtained from 15 boys and 15 girls (14-18 years old), during a series of role plays, focus group discussions and one-to-one interviews. A questionnaire was administered to 80 pupils (12-20 years old) from the same school. Most of the pupils were sexually active. Sexual relationships between boys and girls were mediated by peers. Boys initiated relationships. Exchange played an important role in the negotiation of sexual relationships. Money or gifts were given and received in exchange for sexual favours and to strengthen the relationship. To maximize gains, some adolescents had sexual relationships with adults. Sexual relationships were characterized by ambiguity. Love is intertwined with sexual desire, money and prestige. Girls have to be explicit enough to get a good deal; if they are too explicit they will be stigmatized as 'loose' but if they are not interested in money they may be suspected of wanting to spread HIV. Boys try to persuade girls that they have money, but do not want to emphasize this too much. In sexual negotiations a boy must persuade a girl that although he is modern and sophisticated (i.e. experienced) he does not chase after every girl; the girl does not want to come over as an unsophisticated virgin, but does not want to give the impression that she is loose either. There is a tension between the traditional ideal of female chastity and submissiveness and the modern image of sexual freedom. Multiple partnerships were highly valued as a sign of sophistication. Condoms were not considered important. Interventions aimed at reducing the spread of HIV do not seem to be having an effect on the behaviour of this group of adolescents. On the contrary, risky attitudes and behaviour are part of an adolescent ideal of modernity and sophistication. New approaches are needed to persuade this group of the need for change. Shifting the source of interventions from adults to the adolescents themselves, encouraging girls to try other means of earning money and debunking the idea that having many partners is sophisticated may be productive alternatives. PMID:11177467

  11. The Impact of Sexual Media on Second Language Vocabulary Retrieval.

    PubMed

    Çetin, Yakup

    2015-12-01

    Both Islam and Christianity warn their adherents not to view or to display obscene matter. Aside from religious consequences in the afterlife for such behavior, this study was conducted to determine if viewing sexual media has a detrimental effect in earthly life. Adolescents (n = 64) 17-22 years were exposed to two types of visual stimuli containing sexual or neutral content for 30 min. The participants, seated in rooms with comfortable chairs and provided with snacks, were shown a selection of 18 German words via a PowerPoint slideshow, which included a picture, an audio recording, and the written form of each word. The experimental group, which was exposed to arousing visual stimuli with mild sexual content (movie trailers, music video clips, and TV commercials), remembered significantly fewer words than the control group, which viewed a nature documentary without sexual content. T-test scores revealed that exposure to sexually arousing media impaired memory for second language (L2) vocabulary. Apart from leading to dire consequences in the hereafter, the results of the study demonstrate that viewing obscene material also causes harm in this life. PMID:25956152

  12. Sexual Crime in India: Is it Influenced by Pornography?

    PubMed Central

    Math, Suresh Bada; Viswanath, Biju; Maroky, Ami Sebastian; Kumar, Naveen C.; Cherian, Anish V.; Nirmala, Maria Christine

    2014-01-01

    Purpose: Studies on whether pornography poses a greater risk for sexually aggressive behavior have revealed conflicting results. This study aims to examine the relationship between the consumption of pornography and the subsequent increase in sexual violence, thus testing the hypothesis that increase in consumption of pornography is related to increased sexual crime, in the Indian scenario. Materials and Methods: The current study explored the association between reported incidence of crime over a period of four decades - 1971-2008 (time periods being divided into: Pre-liberalization and post-liberation - India adopted liberalization policy in 1992) and availability of pornography over internet with a particular focus on crime against women (such as rape, sexual harassment, and crime against women). Results: Comparison of pre-liberalization and post-liberalization growth of rape rates was not significant. Though there were statistically significant positive correlations between the number of internet users and sexual crime rates, the association was non-significant after controlling for the effects of population growth using regression analysis. Conclusion: Results presented needs to be interpreted with extreme care and caution. Nevertheless, the results from this study suggest that easy access to pornography did not have a significant impact on rape rates and crime rate against women. PMID:24860215

  13. An Interpersonal Investigation of Sexual Self-Schemas.

    PubMed

    Mueller, Kyle; Rehman, Uzma S; Fallis, Erin E; Goodnight, Jackson A

    2016-02-01

    A sexual self-schema is a cognitive generalization about sexual aspects of the self. In the current study, we examined how an individual's sexual self-schema influenced the processing of self and partner related sexual information. Specifically, we investigated how sexual self-schemas related to own and partner sexual satisfaction and how they influenced perceptions of partner sexual satisfaction. Participants were 117 heterosexual couples in committed, long-term relationships. Both partners completed measures assessing their sexual self-schemas, their own sexual satisfaction, and perceptions of partner sexual satisfaction. Consistent with our predictions, own sexual schema was associated with own sexual satisfaction. For men, more positive sexual self-schemas were associated with greater sexual satisfaction, and for women, more negative sexual self-schemas were associated with lower sexual satisfaction. For both men and women, there was no significant association between own sexual self-schema and partner sexual satisfaction. Sexual self-schemas directly and indirectly influenced an individual's perception of the partner's sexual satisfaction, such that men and women with more positive sexual self-schemas rated their partners as more sexually satisfied, after controlling for the partner's self-reported level of sexual satisfaction. Our findings demonstrated that sexual self-schemas are relevant to own sexual satisfaction as well as the processing of interpersonally relevant sexual information, specifically one's perceptions of partner sexual satisfaction. PMID:26545914

  14. Childhood Sexual Abuse and Suicide

    MedlinePLUS

    ... physical and emotional neglect . 2 23456 “Sexual victimization… creates an overwhelming sense of powerlessness , worthlessness , and a felt inability to change or control one’s environment. It creates self-loathing… ...

  15. Caring Community Responding to sexual

    E-print Network

    Caring Community Responding to sexual violence and harassment The Firefighter Humanoid robot earns of Historical Photograph Col- lection, Special Collections, University Libraries, Virginia Tech. The Firefighter to train firefighters. Restaurants of Yesteryear: Nostalgia feeds memories of Blacksburg's eateries

  16. Child sexual abuse, links to later sexual exploitation/high-risk sexual behavior, and prevention/treatment programs.

    PubMed

    Lalor, Kevin; McElvaney, Rosaleen

    2010-10-01

    This paper reviews the literature on the nature and incidence of child sexual abuse, explores the link between child sexual abuse and later sexual exploitation, and reviews the literature on prevention strategies and effective interventions in child sexual abuse services. Our understanding of the international epidemiology of child sexual abuse is considerably greater than it was just 10 years ago, and studies from around the world are examined. Childhood sexual abuse can involve a wide number of psychological sequelae, including low self-esteem, anxiety, and depression. Numerous studies have noted that child sexual abuse victims are vulnerable to later sexual revictimization, as well as the link between child sexual abuse and later engagement in high-risk sexual behaviour. Survivors of child sexual abuse are more likely to have multiple sex partners, become pregnant as teenagers, and experience sexual assault as adults. Various models which attempt to account for this inter-relationship are presented; most invoke mediating variables such as low self-esteem, drug/alcohol use, PTSD and distorted sexual development. Prevention strategies for child sexual abuse are examined including media campaigns, school-based prevention programmes, and therapy with abusers. The results of a number of meta-analyses are examined. However, researchers have identified significant methodological limitations in the extant research literature that impede the making of recommendations for implementing existing therapeutic programmes unreservedly. PMID:20679329

  17. Urban Lit and Sexual Risk Behavior: A Survey of African-American Adolescent Girls.

    PubMed

    Harris, Allyssa L

    2015-07-01

    Adolescents spend an inordinate amount of time engaged with media, which is highly sexualized. Sexualized material can be found in music, on television and the Internet, as well as in magazines and books. Adolescents engaged with media are often influenced by this sexualized content, leading them to engage in risky sexual behavior. Urban literature (urban lit) is extremely popular among African-American female adolescents due to its portrayal of urban life and hip-hop culture. The purpose of this survey was to ascertain the extent to which African-American adolescent females are reading urban literature and to document whether this genre of literature had an effect on their sexual risk behaviors. PMID:26371361

  18. A Place of His Own: Inge's "The Tiny Closet" as Outside Sexual and Political Orders

    E-print Network

    Warren, Brian; Hernandez, Teresa

    2013-05-03

    alternate sexualities common in post-World War II America. William Inge as the “Queer Outsider” Inge lived and worked in the paradoxical theatre world of the time, a world that marginalized homosexuals even as it benefitted enormously from... turning the reader’s head so that he/she must finally look at the undercurrent of society, the explicit message being that, for our own safety, this deviant and dangerous world has to be watched closely. Homosexuals knew their public careers could...

  19. Implicit and Explicit Learning in Individuals with Agrammatic Aphasia

    PubMed Central

    Schuchard, Julia; Thompson, Cynthia K.

    2013-01-01

    Implicit learning is a process of acquiring knowledge that occurs without conscious awareness of learning, whereas explicit learning involves the use of overt strategies. To date, research related to implicit learning following stroke has been largely restricted to the motor domain and has rarely addressed implications for language. The present study investigated implicit and explicit learning of an auditory word sequence in 10 individuals with stroke-induced agrammatic aphasia and 18 healthy age-matched participants using an adaptation of the Serial Reaction Time task. Individuals with aphasia showed significant learning under implicit, but not explicit, conditions, whereas age-matched participants learned under both conditions. These results suggest significant implicit learning ability in agrammatic aphasia. Furthermore, results of an auditory sentence span task indicated working memory deficits in individuals with agrammatic aphasia, which are discussed in relation to explicit and implicit learning processes. PMID:23532578

  20. Low Cost Security: Explicit Formulae for Genus 4 Hyperelliptic Curves

    E-print Network

    International Association for Cryptologic Research (IACR)

    (COSY) Ruhr-Universitaet Bochum, Germany fpelzl, wollinger, cpaarg@crypto.rub.de Abstract. It is widely on elliptic curves. In the work at hand we present for the #12;rst time explicit formulae for genus-4 HEC

  1. Moderators of the Relationship between Implicit and Explicit Evaluation

    PubMed Central

    Nosek, Brian A.

    2005-01-01

    Automatic and controlled modes of evaluation sometimes provide conflicting reports of the quality of social objects. This paper presents evidence for four moderators of the relationship between automatic (implicit) and controlled (explicit) evaluations. Implicit and explicit preferences were measured for a variety of object pairs using a large sample. The average correlation was r = .36, and 52 of the 57 object pairs showed a significant positive correlation. Results of multilevel modeling analyses suggested that: (a) implicit and explicit preferences are related, (b) the relationship varies as a function of the objects assessed, and (c) at least four variables moderate the relationship – self-presentation, evaluative strength, dimensionality, and distinctiveness. The variables moderated implicit-explicit correspondence across individuals and accounted for much of the observed variation across content domains. The resulting model of the relationship between automatic and controlled evaluative processes is grounded in personal experience with the targets of evaluation. PMID:16316292

  2. NEW CLASSES OF DOMAINS WITH EXPLICIT BERGMAN KERNEL

    E-print Network

    NEW CLASSES OF DOMAINS WITH EXPLICIT BERGMAN KERNEL on general bounded symmetric domains, for which we obtain the Bergman kernel in ex- plicit formulas. In 1921, S. Bergman introduced a kernel function, which is now known as the Bergman kernel

  3. Multidimensional explicit difference schemes for hyperbolic conservation laws

    NASA Technical Reports Server (NTRS)

    Vanleer, B.

    1983-01-01

    First and second order explicit difference schemes are derived for a three dimensional hyperbolic system of conservation laws, without recourse to dimensional factorization. All schemes are upwind (backward) biased and optimally stable.

  4. Multidimensional explicit difference schemes for hyperbolic conservation laws

    NASA Technical Reports Server (NTRS)

    Van Leer, B.

    1984-01-01

    First- and second-order explicit difference schemes are derived for a three-dimensional hyperbolic system of conservation laws, without recourse to dimensional factorization. All schemes are upwind biased and optimally stable.

  5. Predicting Dislocation Climb and Creep from Explicit Atomistic Details

    E-print Network

    Kabir, Mohammad Mukul

    Here we report kinetic Monte Carlo simulations of dislocation climb in heavily deformed, body-centered cubic iron comprising a supersaturation of vacancies. This approach explicitly incorporates the effect of nonlinear ...

  6. Description du Schema de Neige ISBA-ES (Explicit Snow)

    E-print Network

    Description du Schema de Neige ISBA-ES (Explicit Snow) Aaron Boone April, 2002 Updated in November . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Chapter 1. ISBA-ES general description . . . . . . . . . . . . . . . . 5 1. Snow scheme physics . . . . . . . . . . . . . . . . . . . . . . . . . 7 a. Mass balance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 b. Snow layering

  7. Description du Schema de Neige ISBA-ES (Explicit Snow)

    E-print Network

    Description du Schema de Neige ISBA-ES (Explicit Snow) Aaron Boone April, 2002 Updated in May, 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Chapter 1. ISBA-ES general description . . . . . . . . . . . . . . . . 5 1. Snow scheme physics . . . . . . . . . . . . . . . . . . . . . . . . . 7 a. Mass balance . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 b. Snow layering

  8. Development of a spatially explicit ruminant landscape use model (RLUM) 

    E-print Network

    Erickson, Daniel Lawrence

    1996-01-01

    of this study as well as published literature. Simulated landscape use patterns show a tight pattern concentrated around water sources whereas observed landscape This paper describes the development of RLUM, an integrated spatially explicit, prototypic, ruminant...

  9. Stability of explicit numerical schemes for convection-dominated problems

    E-print Network

    Starck, Jean-Luc

    condition for the heat equation with explicit schemes. As we will see in this article, the power two comes the generalization of this stability constraint. Moreover, we Laboratoire de M´ecanique, Mod´elisation et Proc

  10. Explicit and implicit emotion regulation: a dual-process framework.

    PubMed

    Gyurak, Anett; Gross, James J; Etkin, Amit

    2011-04-01

    It is widely acknowledged that emotions can be regulated in an astonishing variety of ways. Most research to date has focused on explicit (effortful) forms of emotion regulation. However, there is growing research interest in implicit (automatic) forms of emotion regulation. To organise emerging findings, we present a dual-process framework that integrates explicit and implicit forms of emotion regulation, and argue that both forms of regulation are necessary for well-being. In the first section of this review, we provide a broad overview of the construct of emotion regulation, with an emphasis on explicit and implicit processes. In the second section, we focus on explicit emotion regulation, considering both neural mechanisms that are associated with these processes and their experiential and physiological consequences. In the third section, we turn to several forms of implicit emotion regulation, and integrate the burgeoning literature in this area. We conclude by outlining open questions and areas for future research. PMID:21432682

  11. Sexual activities of Malaysian adolescents.

    PubMed

    Zulkifli, S N; Low, W Y; Yusof, K

    1995-03-01

    This paper examines data on the sexual activities of 1,200 Malaysian adolescents aged 15-21 years based on a probability household sampled survey carried out in Kuala Lumpur in 1986. Sexual behaviours like premarital sexual intercourse, contraceptive usage and masturbation were presented. Of the 1,181 unmarried respondents, 9% (105) reported having had sexual intercourse; males were significantly more experienced compared to females. Older age groups were also found to be more sexually active than the younger ones. Among those who had experience dating (n = 521), 20% (105) have experienced sexual intercourse, 44% (228) have kissed and necked, and 35% (183) have experienced petting, while 24% (130) have had no physical intimacies. Poor use of contraception was also revealed. The most commonly used were condoms, oral contraceptives and withdrawal. With regard to masturbation, males begin this practice relatively earlier than females. Almost half of those who indulged in masturbation were worried by the act, especially the females. Implications of the findings are discussed. PMID:7752975

  12. Pathologizing sexual deviance: a history.

    PubMed

    De Block, Andreas; Adriaens, Pieter R

    2013-01-01

    This article provides a historical perspective on how both American and European psychiatrists have conceptualized and categorized sexual deviance throughout the past 150 years. During this time, quite a number of sexual preferences, desires, and behaviors have been pathologized and depathologized at will, thus revealing psychiatry's constant struggle to distinguish mental disorder--in other words, the "perversions," "sexual deviations," or "paraphilias"--from immoral, unethical, or illegal behavior. This struggle is apparent in the works of 19th- and early-20th-century psychiatrists and sexologists, but it is also present in the more recent psychiatric textbooks and diagnostic manuals, such as the consecutive editions of the Diagnostic and Statistical Manual of Mental Disorders (DSM). While much of the historical literature revolves around the controversy over homosexuality, this article also reviews the recent medicohistorical and sociohistorical work on other forms of sexual deviance, including the diagnostic categories listed in the latest edition, the DSM-IV-TR: exhibitionism, voyeurism, fetishism, frotteurism, pedophilia, sexual masochism, sexual sadism, and transvestic fetishism. PMID:23480073

  13. Specificity of sexual arousal for sexual activities in men and women with conventional and masochistic sexual interests.

    PubMed

    Chivers, Meredith L; Roy, Carolyn; Grimbos, Teresa; Cantor, James M; Seto, Michael C

    2014-07-01

    Prior studies consistently report that men's genital responses correspond to their sexual activity interests (consenting vs. coercive sex) whereas women's responses do not. For women, however, these results may be confounded by the sexual activities studied and lack of suitable controls. We examined the subjective and genital arousal responses of men and women with conventional (22 men and 15 women) or masochistic sexual interests (16 men and 17 women) to narratives describing conventional sex or masochistic sex. The aims of the studies were twofold: (1) to examine whether gender differences in the specificity of sexual arousal previously observed for gender also exist for sexual activity interests; and (2) to examine whether men and women with masochistic sexual interests demonstrate specificity of sexual response for their preferred sexual activities. Surprisingly, the pattern of results was very similar for men and women. Both men and women with conventional sexual interests (WCI) reported more sexual arousal, and responded more genitally, to conventional than to masochistic sex, demonstrating specificity of sexual arousal for their preferred sexual activities. Despite showing specificity for conventional sexual activities, the genital responses of WCI were still gender nonspecific. In contrast, women and men with masochistic sexual interests demonstrated nonspecific subjective and genital responses to conventional and masochistic sex. Indices of genital and subjective sexual arousal to masochistic versus conventional stimuli were positively and significantly correlated with self-reported thoughts, fantasies, interests, and behaviors involving masochism. The results suggest that gender similarities in the specificity of sexual arousal for sexual activity exist despite consistent gender differences in the specificity of sexual arousal for gender. PMID:24057208

  14. Adaptive implicit-explicit methods for flow problems

    NASA Astrophysics Data System (ADS)

    Liou, J.; Tezduyar, T. E.

    Studies on the adaptive implicit-explicit (AIE) method for large-scale problems are presented. The AIE method is based on dynamic grouping of the elements into the implicit and explicit subsets as dictated by the element level stability and accuracy considerations. The method has been applied to various flow problems including the incompressible flow and convection-diffusion problems, and it has been demonstrated that substantial savings in CPU time and memory can be achieved.

  15. Modulation of late positive potentials by sexual images in problem users and controls inconsistent with "porn addiction".

    PubMed

    Prause, Nicole; Steele, Vaughn R; Staley, Cameron; Sabatinelli, Dean; Hajcak, Greg

    2015-07-01

    "Excessive" viewing of visual sexual stimuli (VSS) is the most commonly reported hypersexual behavior problem and is especially amenable to laboratory study. A pattern of enhanced sexual cue responsiveness is expected in this sample if hypersexuality shares features of other addiction models. Participants (N=122) who either reported or denied problematic VSS use were presented with emotional, including explicit sexual, images while their evoked response potentials were recorded. An interaction of hypersexual problem group and the level of desire for sex with a partner predicted LPP amplitude. Specifically, those reporting problems regulating their VSS use who also reported higher sexual desire had lower LPP in response to VSS. This pattern appears different from substance addiction models. These are the first functional physiological data of persons reporting VSS regulation problems. PMID:26095441

  16. When first comes love (or lust): how romantic and sexual cues bias first impressions in online social networking.

    PubMed

    Dillman Carpentier, Francesca R; Parrott, M Scott; Northup, C Temple

    2014-01-01

    Three experimental studies (N = 286) tested how priming the concepts of sex or romance influence the way people perceive other social media users. Participants first completed a word-search task containing sexual (intercourse, lust), romantic (love, heart), or control words. Participants then evaluated a target's sexual qualities and romantic qualities based on social media profiles, as well as rated their acceptance of the priming stimuli. Results suggested that sex primes led participants to judge targets as being more alluring, racy, and provocative, whereas romance primes led participants to judge targets as being more tender, sentimental, and kind. Both men and women found all primes to be equally acceptable content; women were not averse to these mainstream, non-explicit sexual stimuli. Findings are discussed in terms of viewing sex and romance as distinct, yet related networks of concepts and the need to disentangle sex, romance, and sexualized views of romance. PMID:25175991

  17. Psychosocial profile of male patients presenting with sexual dysfunction in a psychiatric outpatient department in Mumbai, India

    PubMed Central

    Kalra, Gurvinder; Kamath, Ravindra; Subramanyam, Alka; Shah, Henal

    2015-01-01

    Introduction: Sexual dysfunction can occur due to biological problems, relationship problems, lack of proper sexual knowledge or a combination of these. India is often known as the land of Kamasutra. But as far as sexuality research is concerned, there is a paucity of relevant data from India. In view of this, we conducted a study to assess the psychosocial profile of males presenting with sexual dysfunction to psychiatry out-patient department of a tertiary medical hospital. Materials and Methods: Hundred consecutive male patients presenting with sexual dysfunction were screened using Arizona Sexual Experiences Scale for clinical sexual dysfunction and after obtaining their informed consent were included in this study. They were assessed using a semi-structured proforma, Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision criteria, Mini-International Neuropsychiatric Interview, and Dyadic Adjustment Scale. Results: Majority of our respondents were in the 18–30 years age group and were married. The main source of sex knowledge for 69% of them was peer group. Age of onset of masturbation was 11–13 years for 43% of them. Premature ejaculation was the most common sexual dysfunction seen in the respondents. Marital discord was seen in significantly lesser number of respondents (32.35%) as also major depressive disorder that was seen in only 16%. Discussion: Premature ejaculation was the most common sexual dysfunction in our sample. Despite the sexual dysfunction, marital discord and depression were seen less commonly in our respondents. PMID:25657457

  18. The Delivery of Sexuality-related Patient Education to Adolescent Patients: A Preliminary Study of Family Practice Resident Physicians

    PubMed Central

    Clark, Jeffrey K.; Brey, Rebecca A.; Banter, Amy E.; Khubchandani, Jagdish

    2012-01-01

    Background: Risky sexual behavior among adolescents is one of the leading health behaviors most associated with mortality, morbidity, and social problems. Adolescents need reliable sources of information to help them promote healthy sexual behaviors. Physicians in the United States are often seen by adolescents as a reliable and trustworthy source of accurate sexual information. However, many physicians feel uncomfortable or ill-prepared to deal with sexuality issues among their adolescent patients. Purpose: This study examined the impact of family resident physicians’ sexual attitudes, knowledge, and comfort, on the delivery of sexuality-related patient education to their adolescent patients. Materials and Methods: Pre-post-test scales were administered to 21 physicians. Data were also collected for patient (n=644) charts. Factors that determined the delivery of sexuality-related patient education were analyzed. Results: Results indicate that sexuality-related patient education was rarely provided to adolescent patients. Conclusions: Adolescent sexuality education is not a high priority for physicians. Professional medical organizations should play a leadership role in training physicians on delivering sexuality education to adolescent patients. PMID:24478998

  19. Implementation of the nonlocal microplane concrete model within an explicit dynamic finite element program

    SciTech Connect

    Cofer, W.F.

    1992-03-01

    The microplane concrete material model is based upon assumptions regarding the behavior of the material components. At any point, the response to the strain tensor on arbitrarily oriented surfaces is considered. Simple, softening stress-strain relationships are assumed in directions perpendicular and parallel to the surfaces. The macroscopic material behavior is then composed of the sum of the effects. The implementation of this model into the explicit, nonlinear, dynamic finite element program, DYNA3D, is described. To avoid the spurious mesh sensitivity that accompanies material failure, a weighted integral strain averaging approach is used to ensure that softening is nonlocal. This method is shown to be effective for limiting the failure zone in a concrete rod subjected to an impulse loading. 36 refs., 7 figs.

  20. An explicit finite element formulation for dynamic strain localization and damage evolution in metals

    SciTech Connect

    Mourad, Hashem M; Bronkhorst, Curt A; Addessio, Francis L

    2010-12-16

    An explicit finite element formulation, used to study the behavior and failure mechanisms of metallic materials under high strain rate loading, is presented. The formulation is based on the assumed-strain approach of Fish and Belytschko [1988], which allows localization bands to be embedded within an element, thereby alleviating mesh sensitivity and reducing the required computational effort. The behavior of the material outside localization bands (and of the virgin material prior to the onset of strain localization) is represented using a Gurson-type coupled plasticity-damage model based on the work of Johnson and Addessio [1988]. Assuming adiabatic conditions, the response of the localization band material is represented by a set of constitutive equations for large elasticviscoplastic deformations in metals at high strain rates and high homologous temperatures (see Brown et al. [1989]). Computational results are compared to experimental data for different metallic alloys to illustrate the advantages of the proposed modeling strategy.

  1. The role of sexual self-schema in a diathesis–stress model of sexual dysfunction

    PubMed Central

    CYRANOWSKI, JILL M.; AARESTAD, SUSAN L.; ANDERSEN, BARBARA L.

    2009-01-01

    Sexual self-schemas are cognitive generalizations regarding sexual aspects of the self that represent a core component of one’s sexuality. We contend that individual differences in the sexual self-view represent an important cognitive diathesis for predicting sexual difficulty or dysfunction. We illustrate the role of sexual self-schemas on sexual behavior and responsiveness in healthy female and male samples. Next, we describe how diathesis–stress models of psychopathology have been applied to the sexual arena, and discuss the critical features of clinically useful diathesis variables. Drawing from these criteria, we examine the diathetic properties of sexual self-schemas. Finally, we discuss an empirical test of the proposed diathesis–stress interaction, reviewing the role of women’s sexual self-views on sexual morbidity following diagnosis and treatment for gynecologic cancer. PMID:19587834

  2. Testing cognitive predictors of individual differences in the sexual psychophysiological responses of sexually functional women.

    PubMed

    Clifton, Jessica; Seehuus, Martin; Rellini, Alessandra H

    2015-07-01

    The literature on sexual responses shows a large and not fully understood between-women variance in sexual responses and in strength of coherence between physiological and subjective sexual responses. This study investigated cognitive factors theorized to be associated with sexual responses that could explain such variance. Specifically, we investigated the predictive value of sexual excitation/inhibition and sexual schemas on sexual response and coherence. Vaginal photoplethysmography and continuous subjective sexual arousal were collected from 29 young women while they watched a control/erotic video sequence. Hierarchical linear modeling revealed that high sexual excitation and schemas related to passion and romance were related to higher coherence. These findings support the notion that cognitive factors that enhance sexual arousal contribute to the large variation seen in the coherence of sexual response as measured in the laboratory. PMID:25816911

  3. Intralocus sexual conflict for fitness: sexually antagonistic alleles for testosterone

    PubMed Central

    Mills, Suzanne C.; Koskela, Esa; Mappes, Tapio

    2012-01-01

    Intralocus sexual conflict occurs when a trait encoded by the same genetic locus in the two sexes has different optima in males and females. Such conflict is widespread across taxa, however, the shared phenotypic traits that mediate the conflict are largely unknown. We examined whether the sex hormone, testosterone (T), that controls sexual differentiation, contributes to sexually antagonistic fitness variation in the bank vole, Myodes glareolus. We compared (opposite-sex) sibling reproductive fitness in the bank vole after creating divergent selection lines for T. This study shows that selection for T was differentially associated with son versus daughter reproductive success, causing a negative correlation in fitness between full siblings. Our results demonstrate the presence of intralocus sexual conflict for fitness in this small mammal and that sexually antagonistic selection is acting on T. We also found a negative correlation in fitness between parents and their opposite-sex progeny (e.g. father–daughter), highlighting a dilemma for females, as the indirect genetic benefits of selecting reproductively successful males (high T) are lost with daughters. We discuss mechanisms that may mitigate this disparity between progeny quality. PMID:22171083

  4. Drug consumption among sexual offenders against females.

    PubMed

    Baltieri, Danilo Antonio; de Andrade, Arthur Guerra

    2008-02-01

    This article aims to evaluate the role of drug consumption among sexual offenders against females. Three groups of participants (N = 133) comprising sexual offenders against girls, pubertal females, and women were examined with reference to history of drug and/or alcohol use, impulsivity level, sexual addiction, and recidivism risk. Sexual offenders against women were found to have significantly more difficulties with drug use, higher impulsivity level, and to be younger than the sexual offenders against girls and pubertal females. The combination of drug consumption and higher level of impulsivity may contribute to sexual aggression against adult females. PMID:17615431

  5. Creating a public space and dialogue on sexuality and rights: a case study from Bangladesh

    PubMed Central

    2011-01-01

    This article describes and analyses a research based engagement by a university school of public health in Bangladesh aimed at raising public debate on sexuality and rights and making issues such as discrimination more visible to policy makers and other key stakeholders in a challenging context. The impetus for this work came from participation in an international research programme with a particular interest in bridging international and local understandings of sexual and reproductive rights. The research team worked to create a platform to broaden discussions on sexuality and rights by building on a number of research activities on rural and urban men’s and women’s sexual health concerns, and on changing concepts of sexuality and understandings of sexual rights among specific population groups in Dhaka city, including sexual minorities. Linked to this on-going process of improving the evidence base, there has been a series of learning and capacity building activities over the last four years consisting of training workshops, meetings, conferences and dialogues. These brought together different configurations of stakeholders – members of sexual minorities, academics, service providers, advocacy organisations, media and policy makers. This process contributed to developing more effective advocacy strategies through challenging representations of sexuality and rights in the public domain. Gradually, these efforts brought visibility to hidden or stigmatised sexuality and rights issues through interim outcomes that have created important steps towards changing attitudes and policies. These included creating safe spaces for sexual minorities to meet and strategise, development of learning materials for university students and engagement with legal rights groups on sexual rights. Through this process, it was found to be possible to create a public space and dialogue on sexuality and rights in a conservative and challenging environment like Bangladesh by bringing together a diverse group of stakeholders to successfully challenge representations of sexuality in the public arena. A further challenge for BRAC University has been to assess its role as a teaching and research organisation, and find a balance between the two roles of research and activism in doing work on sexuality issues in a very sensitive political context. PMID:21679379

  6. Sleep and awareness about presence of regularity speed the transition from implicit to explicit knowledge.

    PubMed

    Drosopoulos, Spyridon; Harrer, Dorothea; Born, Jan

    2011-03-01

    Sleep supports the conversion of implicitly acquired information into explicitly available knowledge. Currently, it is unclear if awareness about the presence of regularities in the stimulus material can modulate this conversion. Forty participants were trained on a serial reaction time task (SRTT). Twenty participants were informed afterwards that there was some regularity in the underlying sequence, without giving them any specific details about this regularity (aware condition); twenty other participants were not informed (unaware condition). Ten participants in each group slept the night after training, whereas 10 remained awake. After a second night of (recovery) sleep, a generation task followed where the target positions of the trained SRTT had to be deliberately generated. Both "sleep" and "awareness" improved generation task performance, but the two factors did not interact. We conclude that whilst sleep facilitates the conversion of implicit into explicit knowledge, the effect of awareness is not specific to sleep-dependent consolidation. PMID:21163328

  7. Sexual Recruitment in Zostera marina: Progress toward a Predictive Model.

    PubMed

    Furman, Bradley T; Peterson, Bradley J

    2015-01-01

    Ecophysiological stress and physical disturbance are capable of structuring meadows through a combination of direct biomass removal and recruitment limitation; however, predicting these effects at landscape scales has rarely been successful. To model environmental influence on sexual recruitment in perennial Zostera marina, we selected a sub-tidal, light-replete study site with seasonal extremes in temperature and wave energy. During an 8-year observation period, areal coverage increased from 4.8 to 42.7%. Gains were stepwise in pattern, attributable to annual recruitment of patches followed by centrifugal growth and coalescence. Recruitment varied from 13 to 4,894 patches per year. Using a multiple linear regression approach, we examined the association between patch appearance and relative wave energy, atmospheric condition and water temperature. Two models were developed, one appropriate for the dispersal of naked seeds, and another for rafted flowers. Results indicated that both modes of sexual recruitment varied as functions of wind, temperature, rainfall and wave energy, with a regime shift in wind-wave energy corresponding to periods of rapid colonization within our site. Temporal correlations between sexual recruitment and time-lagged climatic summaries highlighted floral induction, seed bank and small patch development as periods of vulnerability. Given global losses in seagrass coverage, regions of recovery and re-colonization will become increasingly important. Lacking landscape-scale process models for seagrass recruitment, temporally explicit statistical approaches presented here could be used to forecast colonization trajectories and to provide managers with real-time estimates of future meadow performance; i.e., when to expect a good year in terms of seagrass expansion. To facilitate use as forecasting tools, we did not use statistical composites or normalized variables as our predictors. This study, therefore, represents a first step toward linking remotely acquired environmental data to sexual recruitment, an important measure of seagrass performance that translates directly into landscape-scale coverage change. PMID:26368792

  8. Sexual Recruitment in Zostera marina: Progress toward a Predictive Model

    PubMed Central

    2015-01-01

    Ecophysiological stress and physical disturbance are capable of structuring meadows through a combination of direct biomass removal and recruitment limitation; however, predicting these effects at landscape scales has rarely been successful. To model environmental influence on sexual recruitment in perennial Zostera marina, we selected a sub-tidal, light-replete study site with seasonal extremes in temperature and wave energy. During an 8-year observation period, areal coverage increased from 4.8 to 42.7%. Gains were stepwise in pattern, attributable to annual recruitment of patches followed by centrifugal growth and coalescence. Recruitment varied from 13 to 4,894 patches per year. Using a multiple linear regression approach, we examined the association between patch appearance and relative wave energy, atmospheric condition and water temperature. Two models were developed, one appropriate for the dispersal of naked seeds, and another for rafted flowers. Results indicated that both modes of sexual recruitment varied as functions of wind, temperature, rainfall and wave energy, with a regime shift in wind-wave energy corresponding to periods of rapid colonization within our site. Temporal correlations between sexual recruitment and time-lagged climatic summaries highlighted floral induction, seed bank and small patch development as periods of vulnerability. Given global losses in seagrass coverage, regions of recovery and re-colonization will become increasingly important. Lacking landscape-scale process models for seagrass recruitment, temporally explicit statistical approaches presented here could be used to forecast colonization trajectories and to provide managers with real-time estimates of future meadow performance; i.e., when to expect a good year in terms of seagrass expansion. To facilitate use as forecasting tools, we did not use statistical composites or normalized variables as our predictors. This study, therefore, represents a first step toward linking remotely acquired environmental data to sexual recruitment, an important measure of seagrass performance that translates directly into landscape-scale coverage change. PMID:26368792

  9. Effects of Learning Strategies and Motivation on Implicit vs. Explicit Instructional Approaches for Spanish L2 Vocabulary

    ERIC Educational Resources Information Center

    Hervas, David

    2010-01-01

    Under the premise that vocabulary learning in a Spanish as a second language in-class environment may be affected by the instructional approach adopted by the instructors or the materials followed, this study explores the influence of rather distant teaching styles, such as implicit and explicit approaches, on the learning outcome of Spanish…

  10. Design Optimization of Laminated Composite Structures Using Explicit Finite Element Analysis

    NASA Astrophysics Data System (ADS)

    Mika, Krista

    Laminated composite materials are used in aerospace, civil and mechanical structural systems due to their superior material properties compared to the constituent materials as well as in comparison to traditional materials such as metals. Laminate structures are composed of multiple orthotropic material layers bonded together to form a single performing part. As such, the layup design of the material largely influences the structural performance. Optimization techniques such as the Genetic Algorithm (GA), Differential Evolution (DE), the Method of Feasible Directions (MFD), and others can be used to determine the optimal laminate composite material layup. In this thesis, sizing, shape and topology design optimization of laminated composites is carried out. Sizing optimization, such as the layer thickness, topology optimization, such as the layer orientation and material and the number of layers present, and shape optimization of the overall composite part contribute to the design optimization process of laminates. An optimization host program written in C++ has been developed to implement the optimization methodology of both population based and numerical gradient based methods. The performance of the composite structural system is evaluated through explicit finite element analysis of shell elements carried out using LS-DYNA. Results from numerical examples demonstrate that optimization design processes can significantly improve composite part performance through implementation of optimum material layup and part shape.

  11. Sexual behaviour and sexually transmitted disease patterns in male homosexuals.

    PubMed Central

    Willcox, R R

    1981-01-01

    Male homosexual behaviour is not simply either "active" or "passive", since penile-anal, mouth-penile, and hand-anal sexual contact is usual for both partners, and mouth-anal contact is not infrequent. A simplified method for recording sexual behaviour--a "sexual behaviour record (SBR)"--can be of value in determining the sites to be investigated and as a basis for further epidemiological questioning. Mouth-anal contact is the reason for the relatively high incidence of diseases caused by bowel pathogens in male homosexuals. Trauma may encourage the entry of micro-organisms and thus lead to primary syphilitic lesions occurring in the anogenital area. Similarly, granuloma inguinale, condylomata acuminata, and amoebiasis may be spread from the bowel of the passive homosexual contact. In addition to sodomy, trauma may be caused by foreign bodies, including stimulators of various kinds, penile adornments, and prostheses. Images PMID:6894558

  12. "Children are sexually innocent": Iranian parents' understanding of children's sexuality.

    PubMed

    Merghati-Khoei, Effat; Abolghasemi, Naria; Smith, Thomas G

    2014-04-01

    Sexuality education (SE) is hotly contested in the West and there is much abstinence-only education; however, it remains controversial in a variety of contexts, including in Iran. The lack of consensus about children's SE in Muslim societies obliges us to explore different aspects of this topic systematically. The qualitative research presented here was about how Iranian parents perceived children's sexuality. Data from parents of 26 children were collected during four focus group sessions. Informants were selected from Area 5 in West Tehran. This area included 72 primary schools for girls and 82 for boys. The sessions were facilitated by using a semi-structured focus group guide. Content analysis was adopted using combined free and analytical coding to reduce data, to extract meanings, and to categorize domains. One of the three main domains identified, family management of child sexuality, is comprised of the following: (1) understanding of child sexuality, (2) family rules, (3) parent-child interactions, and (4) opposite sex interactions. Parental misinformation, accumulated myths, and ignorance about children's sexual development were evident. Strict family rules and a lack of consistent policy and instruction for SE were also identified. Parents said they were neither well-prepared nor competent to educate their children about sexuality. In fact, a majority of mothers raised "incompetence" as an important determinant in their own parent-child interactions. Societal changes as well as children's socialization patterns have forced parents to accept their children's opposite sex friendships as a reality. Results suggest a community need for developing comprehensive and culturally sensitive SE for schools and parental use. PMID:24343162

  13. Prohibition of Sex Discrimination, Sexual Harassment, and Sexual Misconduct Issuing Offices: University Office of Human Resources and University Ethics Office

    E-print Network

    Plotnick, Roy E.

    Prohibition of Sex Discrimination, Sexual Harassment, and Sexual Misconduct Issuing Offices. Policy Statement In accordance with "The University of Illinois Statement on Sex Discrimination, Sexual Harassment, and Sexual Misconduct", the University of Illinois prohibits and will not tolerate sex

  14. Views and Attitudes Towards Sexual Functioning in Men Living with Spinal Cord Injury in Kerala, South India

    PubMed Central

    Sunilkumar, MM; Boston, Patricia; Rajagopal, MR

    2015-01-01

    Context: Sexual dysfunction is a major concern for Indian men living with a spinal cord injury. Few first-hand reports exist about the experience of living with an altered sense of sexual identity and the inability to express sexual concerns. Aims: In this qualitative study, the authors explore views and attitudes towards sexual functioning in men living with a spinal cord injury in Kerala, India. Materials and Methods: Semi-structured and open-ended interviews were conducted with seven participants according to IE Seidman's phenomenological approach. Thematic analysis followed the analytic process outlined by Moustakas (1990). Results: Identification of seven interconnected themes included: Recalling an active sexual life, disconnection with sexual identity, incongruence between emotional and physical capability, spousal isolation, social readjustment of spouse, physical barriers to sexual functioning, coping, and reintegration. Conclusions: Patient's descriptions of suffering demonstrate complexities of experience in sexual functioning. All patients were sexually active prior to the injury. This was now lost causing anxiety, distress, and sadness. A huge gap existed between sexual desire and physical capability. The patient and spouse were now isolated emotionally, socially, and physically. Physical barriers included urinary incontinence and indwelling catheters. While several self-evolved coping strategies were identified, support from palliative care services was not evident. Two important gaps exist in research and practice: (1) Attention to sexual issues and whole-person care. (2) Attention to quality of sexual life. Future qualitative studies on sexual dysfunction could provide a useful adjunct to current literature which is predominantly biomedical in its approach. PMID:25709179

  15. Sexual Hookup Culture: A Review

    PubMed Central

    Garcia, Justin R.; Reiber, Chris; Massey, Sean G.; Merriwether, Ann M.

    2013-01-01

    “Hookups,” or uncommitted sexual encounters, are becoming progressively more engrained in popular culture, reflecting both evolved sexual predilections and changing social and sexual scripts. Hook-up activities may include a wide range of sexual behaviors, such as kissing, oral sex, and penetrative intercourse. However, these encounters often transpire without any promise of, or desire for, a more traditional romantic relationship. A review of the literature suggests that these encounters are becoming increasingly normative among adolescents and young adults in North America, representing a marked shift in openness and acceptance of uncommitted sex. We reviewed the current literature on sexual hookups and considered the multiple forces influencing hookup culture, using examples from popular culture to place hooking up in context. We argue that contemporary hookup culture is best understood as the convergence of evolutionary and social forces during the developmental period of emerging adulthood. We suggest that researchers must consider both evolutionary mechanisms and social processes, and be considerate of the contemporary popular cultural climate in which hookups occur, in order to provide a comprehensive and synergistic biopsychosocial view of “casual sex” among emerging adults today. PMID:23559846

  16. ORIGINAL PAPER The Association Between Body Esteem and Sexual Desire

    E-print Network

    Meston, Cindy

    -reported measures of sexual desire, as assessed by a validated measure of sexual function. The sexual attractiveness, and objective ratings of body and facial attractive- ness, have been related to sexual experience, sexual esteemORIGINAL PAPER The Association Between Body Esteem and Sexual Desire Among College Women Brooke N

  17. Using Social Media to Assess Conceptualizations of Sexuality

    ERIC Educational Resources Information Center

    Zeglin, Robert J.; Mitchell, Julie

    2014-01-01

    There is currently no validated model explaining the variability of sexual expression. This has created a scenario where sexuality, as a construct, is purely intuitive. Sexuality educators have frequently presented the Circles of Sexuality, a model that contends that sexuality is a combination of intimacy, sensuality, sexual health/behaviors,…

  18. Female Sexual Dysfunction: Prevalence and Risk Factors

    PubMed Central

    Jaafarpour, Molouk; Khani, Ali; Khajavikhan, Javaher; Suhrabi, Zeinab

    2013-01-01

    Background and Aim: Sexual dysfunction adversely affects quality of life, self esteem and interpersonal relationships and it may often be responsible for psychopathological disturbances. The purpose of this study was to explore the prevalence and associated risk factors for Female Sexual Dysfunction (FSD) in women with Kurdish culture from western Iran . Material and Methods: This was a cross-sectional descriptive survey which included 400 women aged 18–50 years old, married, from Ilam-IR, who were interviewed as per the Iranian version of Female Sexual Function Index (FSFI). The subjects were randomly selected from 4 primary health centres. Results: According to the findings, 185 (46.2%) women reported FSD. Prevalence of FSD increased with age, from 22% in women aged <20 years to 75.7% in women aged 40-50 years. FSD was detected as a desire problem in 45.3% of women, an arousal problem in 37.5%, a lubrication problem in 41.2%, an orgasm problem in 42.0%, a satisfaction problem in 44.5% and a pain problem in 42.5%. The educational level was inversely correlated with the risk of FSD (OR: 1.54 ,95% CI: 1.09-2.13). Patients with FSD were significantly more likely to be older than 40 years (OR: 2.23, 95% CI: 1.12-2.68), who had sexual intercourse fewer than 3 times a week (OR:1.85, 95% CI: 1.23-1.99), who had been married for 10 years or more (OR:1.76, 95% CI: 1.04-1.97), who had 3 children or more (OR: 1.48, 95% CI: 0.97-1.24), who had husbands aged 40 years or more (OR: 2.11, 95% CI: 1.35-2.37) and who were unemployed (OR: 1.34, 95% CI: 1.06-1.63). No significant differences were detected in smoking history, residences and contraception methods used (p>0.05). Conclusion: FSD needs to be recognized as a significant public health problem in Kurd women. Further research, particularly studies on awareness and competency of physicians in the management of FSD, is required. PMID:24551663

  19. Genital Appearance Dissatisfaction: Implications for Women’s Genital Image Self-Consciousness, Sexual Esteem, Sexual Satisfaction, and Sexual Risk

    PubMed Central

    Schick, Vanessa R.; Calabrese, Sarah K.; Rima, Brandi N.; Zucker, Alyssa N.

    2010-01-01

    Findings regarding the link between body image and sexuality have been equivocal, possibly because of the insensitivity of many of body image measures to potential variability across sensory aspects of the body (e.g., appearance versus odor), individual body parts (e.g., genitalia versus thighs), and social settings (e.g., public versus intimate). The current study refined existing methods of evaluating women’s body image in the context of sexuality by focusing upon two highly specified dimensions: satisfaction with the visual appearance of the genitalia and self-consciousness about the genitalia during a sexual encounter. Genital appearance dissatisfaction, genital image self-consciousness, and multiple facets of sexuality were examined with a sample of 217 undergraduate women using an online survey. Path analysis revealed that greater dissatisfaction with genital appearance was associated with higher genital image self-consciousness during physical intimacy, which, in turn, was associated with lower sexual esteem, sexual satisfaction, and motivation to avoid risky sexual behavior. These findings underscore the detrimental impact of negative genital perceptions on young women’s sexual wellbeing, which is of particular concern given their vulnerability at this stage of sexual development as well as the high rates of sexually transmitted infections within this age group. Interventions that enhance satisfaction with the natural appearance of their genitalia could facilitate the development of a healthy sexual self-concept and provide long-term benefits in terms of sexual safety and satisfaction. PMID:20824180

  20. Child Sexual Abuse and Persistence of Risky Sexual Behaviors and Negative Sexual Outcomes over Adulthood: Findings from a Birth Cohort

    ERIC Educational Resources Information Center

    van Roode, Thea; Dickson, Nigel; Herbison, Peter; Paul, Charlotte

    2009-01-01

    Objectives: To determine the impact of child sexual abuse (CSA) on adult sexual behaviors and outcomes over three age periods. Methods: A longitudinal study of a birth cohort born in Dunedin, New Zealand in 1972/1973 was used. Information on CSA was sought at age 26, and on sexual behaviors and outcomes at ages 21, 26, and 32. Comparisons were…

  1. Trauma and Sexuality: The Effects of Childhood Sexual, Physical, and Emotional Abuse on Sexual Identity and Behavior.

    ERIC Educational Resources Information Center

    Chu, James A., Ed.; Bowman, Elizabeth S., Ed.

    This book examines the effects of childhood trauma--including sexual abuse--on sexual orientation and behavior. It is directed at helping counselors expand their sensitivity and expertise in a critically important way: by providing a nonjudgmental look at the profound effects of long-standing early abuse on the sexual identities, orientation,…

  2. A Study on the Effect of a Program Teaching Healthy Sexuality Values on Adolescent Sexual Awareness and Sexual Behavior

    ERIC Educational Resources Information Center

    Moon, Sang Huy

    2013-01-01

    This study was conducted to explore the effectiveness of a program teaching healthy sexuality values on adolescent sexual awareness and sexual behavior. For this study, the present researcher, along with two other professors, developed a 4-h program on 4 different subjects, and conducted the full education program through four different 4-h…

  3. Sexual desire, not hypersexuality, is related to neurophysiological responses elicited by sexual images

    PubMed Central

    Steele, Vaughn R.; Staley, Cameron; Fong, Timothy; Prause, Nicole

    2013-01-01

    Background Modulation of sexual desires is, in some cases, necessary to avoid inappropriate or illegal sexual behavior (downregulation of sexual desire) or to engage with a romantic partner (upregulation of sexual desire). Some have suggested that those who have difficulty downregulating their sexual desires be diagnosed as having a sexual ‘addiction’. This diagnosis is thought to be associated with sexual urges that feel out of control, high-frequency sexual behavior, consequences due to those behaviors, and poor ability to reduce those behaviors. However, such symptoms also may be better understood as a non-pathological variation of high sexual desire. Hypersexuals are thought to be relatively sexual reward sensitized, but also to have high exposure to visual sexual stimuli. Thus, the direction of neural responsivity to sexual stimuli expected was unclear. If these individuals exhibit habituation, their P300 amplitude to sexual stimuli should be diminished; if they merely have high sexual desire, their P300 amplitude to sexual stimuli should be increased. Neural responsivity to sexual stimuli in a sample of hypersexuals could differentiate these two competing explanations of symptoms. Methods Fifty-two (13 female) individuals who self-identified as having problems regulating their viewing of visual sexual stimuli viewed emotional (pleasant sexual, pleasant-non-sexual, neutral, and unpleasant) photographs while electroencephalography was collected. Results Larger P300 amplitude differences to pleasant sexual stimuli, relative to neutral stimuli, was negatively related to measures of sexual desire, but not related to measures of hypersexuality. Conclusion Implications for understanding hypersexuality as high desire, rather than disordered, are discussed. PMID:24693355

  4. Emancipatory Sexuality Education and Sexual Assault Resistance: Does the Former Enhance the Latter?

    ERIC Educational Resources Information Center

    Senn, Charlene Y.; Gee, Stephanie S.; Thake, Jennifer

    2011-01-01

    The current study examined whether adding emancipatory sexuality education, which encourages the exploration of women's own sexual values and desires, to a sexual assault resistance program would improve women's resistance to sexual assault by known men. The participants were 214 first-year university students. A randomized experimental design…

  5. Sexual Identity, Attractions, and Behavior among Young Sexual-Minority Women over a 2-Year Period.

    ERIC Educational Resources Information Center

    Diamond, Lisa M.

    2000-01-01

    Examined sexual identities, attractions, and behaviors of sexual-minority women in 2-year follow-up of women first interviewed at 16-23 years. Found half the participants had changed sexual-minority orientations more than once; one- third changed identities since the first interview. Found changes in sexual attractions were larger among bisexuals…

  6. BIOL330 Human Sexuality Prerequisite for MA in Sexuality Studies WHY IS THERE A BIOLOGY PREREQUISITE?

    E-print Network

    BIOL330 Human Sexuality Prerequisite for MA in Sexuality Studies WHY IS THERE A BIOLOGY foundations of human sexuality. This foundational knowledge is expected for all entering graduate students, and is necessary for the many advanced discussions about human sexuality in the required graduate theory

  7. Sexuality Education Beliefs among Sexually Experienced Youth: Differences by Gender and Birth Control Use

    ERIC Educational Resources Information Center

    Tolma, Eleni L.; Vesely, Sara K.; Oman, Roy F.; Aspy, Cheryl B.; Rodine, Sharon

    2006-01-01

    Purpose: To examine whether gender and birth control use are associated with premarital sexual attitudes, beliefs about peers, family communication about sexual relationships, and sexuality education among sexually experienced youth. Methods: Data were collected from a randomly selected ethnically diverse youth sample (N = 1,253). Only the…

  8. BrdsNBz: Sexually Experienced Teens More Likely to Use Sexual Health Text Message Service

    ERIC Educational Resources Information Center

    Willoughby, Jessica Fitts

    2015-01-01

    Text messaging services are becoming an increasingly popular way to provide sexual health information to teens, but little is known about who uses such services. This study assessed whether teens at a greater risk for negative sexual health outcomes use a sexual health text message service. A text message service that connects teens with sexual

  9. Women, Gender and Sexuality Studies Graduate Handbook 1 Women, Gender and Sexuality Studies

    E-print Network

    Women, Gender and Sexuality Studies Graduate Handbook 1 Women, Gender and Sexuality Studies University of Kansas A Handbook for Graduate Students Department of Women, Gender and Sexuality Studies;Women, Gender and Sexuality Studies Graduate Handbook 2 Table of Contents Introduction

  10. Playing the (Sexual) Field: The Interactional Basis of Systems of Sexual Stratification

    ERIC Educational Resources Information Center

    Green, Adam Isaiah

    2011-01-01

    Recently, scholars have used a Bourdieusian theory of practice to analyze systems of sexual stratification, including an examination of sexual fields and sexual (or erotic) capital. While the broad structural features of the sexual field have been a point of focus in this latter research, a systematic analysis of the interactional processes that…

  11. A Model Linking Diverse Women's Child Sexual Abuse History with Sexual Risk Taking

    ERIC Educational Resources Information Center

    Watson, Laurel B.; Matheny, Kenneth B.; Gagne, Phill; Brack, Greg; Ancis, Julie R.

    2013-01-01

    The purpose of our study was to examine the role that child sexual abuse may play in body surveillance and sexual risk behaviors among undergraduate women. First, a measured variable path analysis was conducted, which assessed the relations among a history of child sexual abuse, body surveillance, and sexual risk behaviors. Furthermore, body…

  12. University of Alberta Sexual Assault Centre Adult Survivors of Child Sexual Abuse

    E-print Network

    Machel, Hans

    University of Alberta Sexual Assault Centre Adult Survivors of Child Sexual Abuse Child sexual abuse is a topic rarely discussed in our society. This can make it difficult for survivors of child and 1 in 6 boys will be sexually abused by age 16.1 Both males and females are susceptible to child

  13. Don't Forget the Good Stuff! Incorporating Positive Messages of Sexual Pleasure into Sexuality Education

    ERIC Educational Resources Information Center

    deFur, Kirsten M.

    2012-01-01

    Sexuality professionals have long called for the inclusion of sexual pleasure in sexuality education programs, however, facilitators are often ill-equipped to do so. This lesson plan will help educators conceptualize the topic of sexual pleasure in order to successfully integrate it into their lessons. This lesson also reviews challenges of…

  14. Title IX Comprehensive Resources to Address Sexual Harassment, Sexual Assault, Relationship Violence and Stalking

    E-print Network

    Massachusetts at Amherst, University of

    1 Title IX Comprehensive Resources to Address Sexual Harassment, Sexual Assault, Relationship: Any employee who becomes aware of a potential incident of sexual assault, sexual harassment for Counseling and Psychological Health provides mental health crisis counseling. Both services are available 24

  15. Sexually Transmitted Diseases: Teens at Risk.

    ERIC Educational Resources Information Center

    Mascola, Laurene

    1987-01-01

    Parents of preteens need to be aware of the rapidly increasing incidence of sexually transmitted diseases among teenagers and to begin talking to their preteens to help prevent or modify risky sexual experimentation during middle adolescence. (MT)

  16. Sexually Transmitted Diseases Surveillance, 2012: Syphilis

    MedlinePLUS

    ... in 2012. P&S Syphilis by Sex and Sex Behavior The male-to-female rate ratio for P&S ... SK, et al. Continuing increases in sexual risk behavior and sexually transmitted diseases among men who have ...

  17. Measuring Iranian women's sexual behaviors: Expert opinion

    PubMed Central

    Ghorashi, Zohreh; Merghati-Khoei, Effat; Yousefy, Alireza

    2014-01-01

    The cultural compatibility of sexually related instruments is problematic because the contexts from which the concepts and meanings were extracted may be significantly different from related contexts in a different society. This paper describes the instruments that have been used to assess sexual behaviors, primarily in Western contexts. Then, based on the instruments’ working definition of ‘sexual behavior’ and their theoretical frameworks, we will (1) discuss the applicability or cultural compatibility of existing instruments targeting women's sexual behaviors within an Iranian context, and (2) suggest criteria for sexually related tools applicable in Iranian settings. Iranian women's sexual scripts may compromise the existing instruments’ compatibility. Suggested criteria are as follows: understanding, language of sexuality, ethics and morality. Therefore, developing a culturally comprehensive measure that can adequately examine Iranian women's sexual behaviors is needed. PMID:25250346

  18. Deep brain stimulation to reduce sexual drive

    PubMed Central

    Fuss, Johannes; Auer, Matthias K.; Biedermann, Sarah V.; Briken, Peer; Hacke, Werner

    2015-01-01

    To date there are few treatment options to reduce high sexual drive or sexual urges in paraphilic patients with a risk for sexual offending. Pharmacological therapy aims to reduce sexual drive by lowering testosterone at the cost of severe side effects. We hypothesize that high sexual drive could also be reduced with deep brain stimulation (DBS) of circuits that generate sexual drive. This approach would help to avoid systemic side effects of antiandrogenic drug therapies. So far the best investigated target to reduce sexual drive is the ventromedial hypothalamus, which was lesioned unilaterally and bilaterally by stereotaxic interventions in paraphilic patients in the 1970s. Here, we discuss DBS as a treatment strategy in patients with severe paraphilic disorders with a serious risk of sexual offending. There are profound ethical and practical issues associated with DBS treatment of paraphilic patients that must be solved before considering such a treatment approach. PMID:26057198

  19. Invisible borders: sexual misconduct in nursing.

    PubMed

    Hughes, Margaret; Farrow, Tony

    2005-07-01

    Sexual misconduct can occur when nurses practise in close physical or emotional proximity with patients. Nurses, however, have a professional responsibility to maintain professional boundaries to avoid the potential for sexual misconduct to occur. In New Zealand, there is evidence that some nurses have been involved in sexual misconduct, resulting in disciplinary proceedings against them. Despite this, there is an absence of guidelines and discussion for New Zealand nurses to prevent such occurrences. This article identifies difficulties in naming and defining sexual misconduct, and discusses sexual misconduct as an abuse of power by nurses. New Zealand and international literature about sexual misconduct by nurses and other health professionals is described, as are guidelines designed to prevent sexual misconduct. Finally, we make recommendations for actions needed to facilitate New Zealand nurses in identifying and avoiding sexual misconduct in practice. PMID:16764163

  20. The Phantom Epidemic of Sexual Assault.

    ERIC Educational Resources Information Center

    Gilbert, Neil

    1991-01-01

    Discusses definitions and reporting of sexual assault. Concludes that the epidemic of sexual assault suggested by the media reflects a radical feminist attitude which prevents objective analysis and trivializes cases of real abuse. (DM)

  1. Deep brain stimulation to reduce sexual drive.

    PubMed

    Fuss, Johannes; Auer, Matthias K; Biedermann, Sarah V; Briken, Peer; Hacke, Werner

    2015-11-01

    To date there are few treatment options to reduce high sexual drive or sexual urges in paraphilic patients with a risk for sexual offending. Pharmacological therapy aims to reduce sexual drive by lowering testosterone at the cost of severe side effects. We hypothesize that high sexual drive could also be reduced with deep brain stimulation (DBS) of circuits that generate sexual drive. This approach would help to avoid systemic side effects of antiandrogenic drug therapies. So far the best investigated target to reduce sexual drive is the ventromedial hypothalamus, which was lesioned unilaterally and bilaterally by stereotaxic interventions in paraphilic patients in the 1970s. Here, we discuss DBS as a treatment strategy in patients with severe paraphilic disorders with a serious risk of sexual offending. There are profound ethical and practical issues associated with DBS treatment of paraphilic patients that must be solved before considering such a treatment approach. PMID:26057198

  2. 29 CFR 1604.11 - Sexual harassment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... BECAUSE OF SEX § 1604.11 Sexual harassment. (a) Harassment on the basis of sex is a violation of section... requests for sexual favors, the employer may be held liable for unlawful sex discrimination against...

  3. Sexuality during and after Pregnancy

    PubMed Central

    Still, Hereford

    1986-01-01

    Most standard obstetrical and gynecological textbooks ignore the subject of sexuality during and after pregnancy, and physicians who practise obstetrics tend to pay scant attention to this aspect of their patients' well-being. Since 1966, when Masters and Johnson's studies were published, relatively little information about pregnancy and sexuality has appeared in the medical literature. A comprehensive survey of the feelings and opinions of some 300 couples, published in 1977, indicates patients' desire and need to discuss sexual concerns with their doctor during and after pregnancy. This article summarizes the relevant literature and discusses the author's own experience of counselling his maternity patients. It also addresses problems which may develop in the marital relationship when a baby enters the pre-existing marital dyad. PMID:21267320

  4. Sexual orientation and spatial memory.

    PubMed

    Cánovas, Ma Rosa; Cimadevilla, José Manuel

    2011-11-01

    The present study aimed at determining the influence of sexual orientation in human spatial learning and memory. Participants performed the Boxes Room, a virtual reality version of the Holeboard. In Experiment I, a reference memory task, the position of the hidden rewards remained constant during the whole experiment. In Experiment II, a working memory task, the position of rewards changed between blocks. Each block consisted of two trials: One trial for acquisition and another for retrieval. The results of Experiment I showed that heterosexual men performed better than homosexual men and heterosexual women. They found the rewarded boxes faster. Moreover, homosexual participants committed more errors than heterosexuals. Experiment II showed that working memory abilities are the same in groups of different sexual orientation. These results suggest that sexual orientation is related to spatial navigation abilities, but mostly in men, and limited to reference memory, which depends more on the function of the hippocampal system. PMID:22047869

  5. [Spatially explicit landscape model-LANDIS I. Mechanism].

    PubMed

    Xu, Chonggan; Hu, Yuanman; Chang, Yu; Li, Xiuzhen; Bu, Renchang; He, Hongshi

    2004-05-01

    Spatially explicit landscape models are the models that spatially explicitly simulate the ecological processes at landscape scale on heterogeneous landscape. LANDIS is a spatially explicit landscape model of forest landscape disturbance, succession and management. By recording the absence/presence of species in terms of 10-yr age cohorts at site level, the semi-quantitative description of fire and windthrow disturbances, and the representation of age-cohorts by bit-wise array, it is possible for LANDIS to simulate the ecological processes at species, site and landscape level. We addressed in detail the approaches used in simulating seed dispersal, disturbances of fire and windthrow, and harvesting. The deficiencies of the model were also discussed to provide feedback for model development. PMID:15320405

  6. The time course of explicit and implicit categorization.

    PubMed

    Smith, J David; Zakrzewski, Alexandria C; Herberger, Eric R; Boomer, Joseph; Roeder, Jessica L; Ashby, F Gregory; Church, Barbara A

    2015-10-01

    Contemporary theory in cognitive neuroscience distinguishes, among the processes and utilities that serve categorization, explicit and implicit systems of category learning that learn, respectively, category rules by active hypothesis testing or adaptive behaviors by association and reinforcement. Little is known about the time course of categorization within these systems. Accordingly, the present experiments contrasted tasks that fostered explicit categorization (because they had a one-dimensional, rule-based solution) or implicit categorization (because they had a two-dimensional, information-integration solution). In Experiment 1, participants learned categories under unspeeded or speeded conditions. In Experiment 2, they applied previously trained category knowledge under unspeeded or speeded conditions. Speeded conditions selectively impaired implicit category learning and implicit mature categorization. These results illuminate the processing dynamics of explicit/implicit categorization. PMID:26025556

  7. Attention bias for sexual words in females with low sexual functioning: A brief report

    PubMed Central

    Beard, Courtney; Amir, Nader

    2014-01-01

    Attention bias (i.e., tendency to selectively attend to disorder-relevant stimuli) has been associated with numerous emotional disorders, but few studies have examined attention bias in the context of sexual problems. The current study tested the hypothesis that females with low sexual functioning show an attention bias toward sexual stimuli compared to females with high sexual functioning. We assessed attention bias using a modified probe detection task using sexual and neutral words. Females with low sexual functioning (n=25) showed an attention bias toward sexual words, whereas females with high sexual functioning (n=25) did not. These results suggest that attention bias may be involved in the maintenance of female sexual dysfunction. Moreover, our findings have implications for both models of sexual dysfunction, as well as clinical interventions. PMID:20432123

  8. Sexual orientation change efforts among current or former LDS church members.

    PubMed

    Dehlin, John P; Galliher, Renee V; Bradshaw, William S; Hyde, Daniel C; Crowell, Katherine A

    2015-04-01

    This study examined sexual orientation change efforts (SOCE) by 1,612 individuals who are current or former members of the Church of Jesus Christ of Latter-day Saints (LDS). Data were obtained through a comprehensive online survey from both quantitative items and open-ended written responses. A minimum of 73% of men and 43% of women in this sample attempted sexual orientation change, usually through multiple methods and across many years (on average). Developmental factors associated with attempts at sexual orientation change included higher levels of early religious orthodoxy (for all) and less supportive families and communities (for men only). Among women, those who identified as lesbian and who reported higher Kinsey attraction scores were more likely to have sought change. Of the 9 different methods surveyed, private and religious change methods (compared with therapist-led or group-based efforts) were the most common, started earlier, exercised for longer periods, and reported to be the most damaging and least effective. When sexual orientation change was identified as a goal, reported effectiveness was lower for almost all of the methods. While some beneficial SOCE outcomes (such as acceptance of same-sex attractions and reduction in depression and anxiety) were reported, the overall results support the conclusion that sexual orientation is highly resistant to explicit attempts at change and that SOCE are overwhelmingly reported to be either ineffective or damaging by participants. PMID:24635593

  9. Phase-coherent communications without explicit phase tracking.

    PubMed

    Song, H C; Hodgkiss, W S; van Walree, P A

    2010-09-01

    Phase-coherent communications typically requires a reliable phase-tracking algorithm. An initial phase estimate with training symbols allows a receiver to compensate for a motion-induced Doppler shift. Following the training period, however, explicit phase tracking can be avoided in time reversal communications that has been implemented on a block-by-block basis to accommodate time-varying channels. This is accomplished by a smaller block size and adaptive channel estimation using previously detected symbols on a symbol-by-symbol basis. The proposed time reversal approach without explicit phase tracking is demonstrated using experimental data (12-20 kHz) in shallow water. PMID:20815434

  10. Parabosons, parafermions, and explicit representations of infinite-dimensional algebras

    SciTech Connect

    Stoilova, N. I.; Van der Jeugt, J.

    2010-03-15

    The goal of this paper is to give an explicit construction of the Fock spaces of the parafermion and the paraboson algebra, for an infinite set of generators. This is equivalent to constructing certain unitary irreducible lowest weight representations of the (infinite rank) Lie algebra so({infinity}) and of the Lie superalgebra osp(1 vertical bar {infinity}). A complete solution to the problem is presented, in which the Fock spaces have basis vectors labeled by certain infinite but stable Gelfand-Zetlin patterns, and the transformation of the basis is given explicitly. Alternatively, the basis vectors can be expressed as semi-standard Young tableaux.

  11. Explicit constructions of unitary transformations between equivalent irreducible representations

    NASA Astrophysics Data System (ADS)

    Mozrzymas, Marek; Studzi?ski, Micha?; Horodecki, Micha?

    2014-12-01

    Irreducible representations (irreps) of a finite group G are equivalent if there exists a similarity transformation between them. In this paper, we describe an explicit algorithm for constructing this transformation between a pair of equivalent irreps, assuming that we are given an algorithm for computing the matrix elements of these irreps. Along the way, we derive a generalization of the classical orthogonality relations for matrix elements of irreps of finite groups. We give an explicit form of such unitary matrices for the important case of conjugated Young-Yamanouchi representations, when our group G is the symmetric group S(N).

  12. Adolescent sexuality and the media.

    PubMed

    Strasburger, V C

    1989-06-01

    Teenagers spend more time with the media than they do in any other activity except sleeping. Is it mere coincidence that the rises in rates of adolescent sexual intercourse during the past 30 years have coincided with the new era of electronic media? Do the media merely reflect society's changes, or do they have the capacity to influence human behavior as well? Although currently part of the problem of teenage pregnancy, the media could become part of the solution, if they were to portray human sexuality responsibly and allow the advertising of contraception. PMID:2660095

  13. [Sexual health management in oncology].

    PubMed

    Habold, Daniel; Bondil, Pierre

    2014-10-01

    The cancer and its treatments have consequences on the intimacy and the sexuality of the patients and their partners. Supporting them with valid information, by spotting risk factors, warning complications, and by bringing answers to the often commonplace concerns of the patients, is an ethical duty. This intervention concerning the sexual health is collectively realized by all the healthcare professionals, in an organization of gradual answer, and benefits ideally from the clinical and educational expertise of sex therapists associated to the supporting care offer. PMID:25065658

  14. [Sexual violence in armed conflicts].

    PubMed

    Nørredam, Marie; Christensen, Vibeke Brix; Knudsen, Thilde; Ginzel, Annelie

    2010-01-11

    The article defines sexual violence and discusses the prevalence here of in conflict areas including the methodological challenges of studying the issue. Moreover, we describe possible physical and mental consequences of sexual violence as well as relevant medical assistance to the victims immediately after the assault and in the longer term. In conclusion, more research is needed about the extent and consequences of the problem, including research on male victims. Knowledge is also relevant in a Danish context where many refugees and immigrants come from conflict areas. PMID:20074485

  15. Beyond Borders: Youth, Education, Sexuality, Desire

    ERIC Educational Resources Information Center

    Mizzi, Robert

    2008-01-01

    This review examines two texts that relate to youth, sexuality, and education. The first is James Sears' "Youth, Education and Sexualities: An International Encyclopedia" (2005) and the second is "Youth and Sexualities: Pleasure, Subversion and Insubordination In and Out of Schools" (2004) edited by Mary Louise Rasmussen, Eric Rofes, and Susan…

  16. The Sexual Stereotype of the Black Male.

    ERIC Educational Resources Information Center

    Davis, Gary L.; Cross, Herbert J.

    This paper presents the results of a study to examine the existence of sexual stereotyping of black males by white college students. Subjects were 180 male and 180 female white undergraduates; they were tested in sexually segregated groups. Each read one of three types of pornographic stories (hard-core, erotic realism, or sexual fantasy). The…

  17. 25 CFR 700.561 - Sexual harassment.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 2 2011-04-01 2011-04-01 false Sexual harassment. 700.561 Section 700.561 Indians THE OFFICE OF NAVAJO AND HOPI INDIAN RELOCATION COMMISSION OPERATIONS AND RELOCATION PROCEDURES Employee Responsibility and Conduct § 700.561 Sexual harassment. (a) Sexual harassment is a form of employee misconduct which undermines the integrity of...

  18. 25 CFR 700.561 - Sexual harassment.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 2 2013-04-01 2013-04-01 false Sexual harassment. 700.561 Section 700.561 Indians THE OFFICE OF NAVAJO AND HOPI INDIAN RELOCATION COMMISSION OPERATIONS AND RELOCATION PROCEDURES Employee Responsibility and Conduct § 700.561 Sexual harassment. (a) Sexual harassment is a form of employee misconduct which undermines the integrity of...

  19. Teens Talk about Sexuality, Sex and Television.

    ERIC Educational Resources Information Center

    Kessler, Shelley

    1983-01-01

    Teenagers discuss their sexual uncertainties and roles parents and television could play in enlightening them on sexuality. From parents, they would like honesty and support, and, from television, portrayals of strong women, emotional attachment, sexual attraction without glamor, connection between sex and pregnancy, and information on…

  20. Religious Orientation and Sexual Attitudes and Behaviors

    ERIC Educational Resources Information Center

    McMillen, Eileen K.; Helm, Herbert W., Jr.; McBride, Duane C.

    2011-01-01

    Religion is one of the major forces of control over sexuality, and many studies have observed an inverse relationship between religiosity and sexual permissiveness. The Religious Orientation Scale has been used to study the relationship between religious orientation and sexuality. It has been found that those with intrinsic views are more…