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  • sexual orientation  (9)
  • Inorganic Chemistry  (4)
  • Lepidoptera  (3)
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Journal of chemical ecology 12 (1986), S. 1239-1245 
    ISSN: 1573-1561
    Schlagwort(e): Amorbia cuneana ; Amorbia essigana ; sex pheromone ; sex pheromone component ratios ; Lepidoptera ; Tortricidae ; (E,E)-10,12-tetra-decadien-1-ol acetate ; (E,Z)-10,12-tetradecadien-1-ol acetate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The most effective lure for maleAmorbia cuneana (Walsingham) in Orange, Ventura, and Riverside counties of California was previously found to be a 1∶1 ratio of (E,E)-10,12- and (E,Z)-10,12-tetradecadien-1-ol acetates. In subsequent field tests in San Diego and Santa Barbara counties, this lure was ineffective. Analysis of sex pheromone glands (SPG) of femaleA. cuneana from these two counties showed theEE:EZ ratio to be about 1∶9 and synthetic lures of this composition were highly attractive in these areas. Analysis of the SPG of a number of females from both areas showed that there were three population types: two in the low ratio areas possessed 37 and 58%EZ, and the third in the high ratio areas possessed 89%EZ.
    Materialart: Digitale Medien
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Journal of chemical ecology 12 (1986), S. 2107-2116 
    ISSN: 1573-1561
    Schlagwort(e): Sabulodes caberata Guenée ; Sabulodes aegrotata Guenée ; omnivorous looper ; Lepidoptera ; Geometridae ; sex pheromone ; (Z,Z)-6,9-nonadecadiene ; (Z)-9-nonadecenekw] ; n-nonadecane
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract A 6,9-nonadecadiene, (Z)-9-nonadecene, andn-nonadecane were identified in extracts of sex pheromone glands of femaleSabulodes caberata Guenée. Potential pheromonal activity of gland components was assessed by electroantennogram measurements of gas-chromatographic fractions of abdominal tip extracts. Chemical identification was based on gas chromatography and mass spectrometry of parent compounds, hydrogenation products, ozonolysis products, dimethyl disulfide adducts, and synthesis. The monoene was synthesized via coupling of alkyl and acetylenic intermediates. (Z,Z)-6,9-Nonadecadiene (Z6,Z9-19∶H) was synthesized from methyl linoleate via chain lengthening. SyntheticZ6,Z9-19∶H had the same retention times on polar and nonpolar capillary gas-chromatographic columns as the 6,9-nonadecadiene from the sex pheromone glands. In field testsZ6,Z9-19:H alone produced trap catch of maleS. caberata and addition of (Z)-9-nonadecene orn-nonadecane had no effect on trap catch.
    Materialart: Digitale Medien
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  • 3
    ISSN: 1573-1561
    Schlagwort(e): Western avocado leafroller ; Amorbia cuneana ; sex pheromone ; Tortricidae ; (E,E)- and (E,Z)-10,12-tetradecadien-1-ol acetate ; Lepidoptera
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The major volatile components in the extract of the female sex pheromone gland ofAmorbia cuneana consisted of (E,E)- and (E,Z)-10,12-tetradecadien-1-ol acetates. The identification was based on electroantennogram bioassay of gas Chromatographic effluent from sex pheromone gland extract, relative retention times on polar and nonpolar gas chromatographic columns, chemical degradation (ozonolysis, saponification), mass spectrometry, chemical synthetic methods, and field tests. Based on mass spectrometry and retention times by capillary gas chromatography, traces of (E)-10-tetradecen-1-ol acetate and 1-tetradecanol acetate were also present in the extract. Traps baited with a combination of synthetic (E,E)- and (E,Z)-10,12-tetradecadien-1-ol acetates caught more males than did traps baited with females.
    Materialart: Digitale Medien
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    Archives of sexual behavior 20 (1991), S. 277-293 
    ISSN: 1573-2800
    Schlagwort(e): maternal stress ; sexual orientation ; etiology ; homosexuality ; familiality
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Psychologie
    Notizen: Abstract Both the neurohormonal theory of sexual orientation and previous research on humans and animals suggest that male homosexuality may arise from prenatal stress during the brain's sexual differentiation. Stress-proneness and retrospective reports of stress during pregnancy were obtained from mothers of male and female heterosexuals, bisexuals, and homosexuals. Each mother also rated pregnancy stress for a heterosexual sibling of the subject. For males, neither between-family nor within-family analyses revealed a maternal stress effect for either sexual orientation or childhood gender nonconformity. However, mothers of effeminate children reported more stress-proneness than other mothers. Male homosexuality nevertheless was strongly familial, suggesting a reconsideration of genetic and familial environmental mechanisms.
    Materialart: Digitale Medien
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  • 5
    ISSN: 1573-2800
    Schlagwort(e): homosexuality ; memory ; masculinity-femininity ; gender nonconformity ; sexual orientation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Psychologie
    Notizen: Abstract Male sexual orientation is strongly associated with childhood sex-typed behavior, but there are also marked within-orientation differences. Gay men show increased variance compared to heterosexual men on retrospective measures of childhood sex-typed behavior. Individual differences among gay men for their degree of sex-typed behavior may have important implications. However, there has been little attention given to the reliability or validity of retrospective measures of such differences that are most common. Gay men and their mothers completed questionnaires assessing the men's sex-typicality during childhood. Results of structural modeling analyses found that mothers' and sons' reports were significantly associated, both regarding the general level of sex-typed behavior and the specific behaviors, supporting the validity of retrospectively measured individual differences for those characteristics.
    Materialart: Digitale Medien
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    Archives of sexual behavior 22 (1993), S. 461-469 
    ISSN: 1573-2800
    Schlagwort(e): homosexuality ; gender nonconformity ; sexual orientation
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Psychologie
    Notizen: Abstract Homosexual and heterosexual subjects provided self-ratings of childhood gender nonconformity. Additionally, their mother rated them on several adjectives describing childhood behavior, which included words related to gender nonconformity. Male homosexuals were remembered by their mothers as less masculine and more nonathletic. This finding did not appear to be due to a bias in mothers' memories. Though female homosexuals were recalled as more masculine than female heterosexuals, this appeared to reflect retrospective bias, as mothers who knew of their daughters' homosexuality were more likely to rate them as masculine. Both self-rated and maternally rated childhood gender nonconformity made independent contributions in predicting sexual orientation. Within the homosexual samples, maternal and self-ratings of subjects' childhood gender nonconformity failed to correlate significantly.
    Materialart: Digitale Medien
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Archives of sexual behavior 26 (1997), S. 433-444 
    ISSN: 1573-2800
    Schlagwort(e): sexual orientation ; dance ; careers ; gender identity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Psychologie
    Notizen: Abstract The stereotypical professional male dancer is a gay man. However, little if any systematic research has investigated the validity of this stereotype, much less the reasons why male sexual orientation would be associated with interest in dance. We interviewed 136 professional dancers about the prevalence of homosexuality among dancers, the dancers' own sexual development, and relationships between dancers of different sexual orientations. Dancers estimated that over half of male dancers are gay, but that only a small minority of female dancers are lesbian. Gay men recalled more intense early interest in dance compared to heterosexual men and women, and were more feminine as boys than were heterosexual men. Gay men's homosexual feelings typically preceded their dance experience, and only one gay man felt that his dance experiences may have influenced his sexual orientation. Heterosexual men voiced some mild complaints about gay male dancers, but these were balanced by positive sentiments.
    Materialart: Digitale Medien
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Archives of sexual behavior 29 (2000), S. 259-278 
    ISSN: 1573-2800
    Schlagwort(e): transsexual ; female-to-male ; sexual orientation ; gender identity ; mating psychology
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Psychologie
    Notizen: Abstract Homosexual and nonhomosexual (relative to genetic sex) female-to-male transsexuals (FTMs) were compared on a number of theoretically or empirically derived variables. Compared to nonhomosexual FTMs, homosexual FTMs reported greater childhood gender nonconformity, preferred more feminine partners, experienced greater sexual rather than emotional jealousy, were more sexually assertive, had more sexual partners, had a greater desire for phalloplasty, and had more interest in visual sexual stimuli. Homosexual and nonhomosexual FTMs did not differ in their overall desire for masculinizing body modifications, adult gender identity, or importance of partner social status, attractiveness, or youth. These findings indicate that FTMs are not a homogeneous group and vary in ways that may be useful in understanding the relation between sexual orientation and gender identity.
    Materialart: Digitale Medien
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Archives of sexual behavior 29 (2000), S. 549-565 
    ISSN: 1573-2800
    Schlagwort(e): sexual orientation ; attraction ; childhood gender nonconformity
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Psychologie
    Notizen: Abstract Memories of sex-atypical behavior and interests in childhood usually differ between homosexual and heterosexual people. However, variation within these broad groups has not previously been explored in detail, especially among women. We utilized data from a postal survey of a nationwide sample of Australian adult twins (n = 4,901, age range: 19–52 years). Among men, 15.2% reported homosexual behavior (ever), 11.5% said they had been sexually attracted to the same sex, and 6.4% said they were not heterosexual; the corresponding figures for women were 7.9, 10.6, and 3.5%. A continuous measure of childhood gender nonconformity (CGN) was sensitive to slight variations in homosexual attraction and behavior. In particular, among both men and women who identified as heterosexual, there were significant differences between “complete” heterosexuals and those who admitted to only one or a few same-sex behaviors but no homosexual attraction. Among men, CGN scores distinguished between heterosexuals who admitted to same-sex behavior only and those who admitted to some homosexual attraction. The sexual subgroups also differed on a measure of gender atypicality in adulthood. Implications for developmental theories of sexuality are discussed.
    Materialart: Digitale Medien
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Behavior genetics 30 (2000), S. 345-356 
    ISSN: 1573-3297
    Schlagwort(e): Homosexuality ; sexual orientation ; heritability ; twins
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Psychologie
    Notizen: Abstract Multivariate structural equation modeling techniques have been applied to examine the causes of individual differences in responses to several items concerning sexual orientation. To minimize potential ascertainment and response biases, the study sample involved a large (N = 4901) community-based cohort of Australian twins aged 18–52 who answered an anonymous questionnaire on sexual behavior and attitudes. The statistical power of the analysis was increased by the availability of multiple measures of sexual orientation (behaviors, attitudes and feelings), providing stronger evidence for the existence of additive genetic influences on this phenotype than in a previous analysis (Bailey et al., 2000). Estimates of the heritability of homosexuality in this sample ranged between 50 and 60% in females but were significantly lower (heritability of approximately 30%) in males.
    Materialart: Digitale Medien
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