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Adolescents' estimates of their peers' smoking prevalence can influence their own smoking behavior. However, it is not clear how these prevalence estimates are formed, or what factors influence their accuracy. This study used data from a statewide sample of 5870 8th-grade adolescents in California to examine the correlates of smoking prevalence estimates. Best friends' smoking accounted for the largest proportion of the variance in prevalence estimates. Other significant correlates included female gender, actual smoking prevalence in the student's school, perceptions of smoking on TV, perceived access to cigarettes, low academic performance, cigarette offers, and ethnicity. The variables in the model accounted for 23.8% of the variance in smoking prevalence estimates. Adolescents with smokers in their social networks and schools may be especially susceptible to smoking, because their peers' smoking may give them the impression that smoking is more normative and prevalent than it actually is. 相似文献
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Kimberly A. Updegraff Susan M. McHale Ann C. Crouter 《Journal of youth and adolescence》1996,25(1):73-88
This study explored the implications of parents' traditional vs. egalitarian marital roles for girls' and boys' patterns of math and science achievement in 67 families with young adolescents. Marital roles were measured in terms of parents' relative involvement in child-oriented activities (e.g., in egalitarian families mothers and fathers participated equally in child-oriented activities). Findings revealed that girls from egalitarian families maintained a high level of achievement across the transition to the seventh grade, whereas girls from traditional families declined in math and science performance. For boys, no significant patterns emerged. Additional analyses revealed that egalitarian and traditional families differed in terms of absolute levels of paternal involvement, parents' sex-role attitudes, and indices of marital power. Our findings were consistent with a person-process-context model of development: Egalitarian and traditional contexts were characterized by different family processes and had different implications for boys and girls.This research was supported by a grant from the National Institute of Child Health and Human Development (RO1HD21050), Ann C. Crouter and Susan M. McHale, co-principal investigators.Research focuses on gender role socialization in the family.Research interests include children's and adolescents' family relationships.Research focuses on the links between parental work and family dynamics. 相似文献
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Illicitly produced heroin is commonly cut with carbohydrates to increase bulk. The analysis of these solutes is important for legal and intelligence purposes. A capillary electrophoresis (CE) method was developed for the qualitative analysis of dextrose, lactose, sucrose, inositol, and mannitol in heroin exhibits. For this method, a 64 cm (55.5 cm to detector window) by 50 mum capillary was used with the Agilent Basic Anion Buffer modified to pH 12.1. This separation was performed at 25 degrees C with a voltage of 20 kV and indirect detection with 2,6-pyridinedicarboxylic acid as the visualization reagent. The methodology is also applicable for the screening of inorganic and organic anions using indirect detection, and acidic adulterants using direct detection. For a run time of 13 min, the relative standard deviation (n = 6) of the methodology was better than 0.36% for migration times and less than 2.6% for corrected peak areas. For the analysis of carbohydrates and acidic adulterants in seized heroin, excellent agreement was obtained between CE and nuclear magnetic resonance spectroscopy. 相似文献
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Ann Kaloski Naylor 《Feminist Review(on-Line)》1999,61(1):51-66
In this article I offer a map of recent UK and US lesbian feminist literary theory which highlights the shifting and often paradoxical interpretations of lesbian sexuality as both real and as metaphorical. I focus on two key texts which offer overviews and analysis of the field from different sides of the Atlantic, which are both accessible, in the sense of being written from the perspective of ‘ordinary’ lesbians, rather than structuring lesbian feminist literary criticism around traditional critical concepts, and which also, unusually, offer some (small) comment on bisexuality. These two works are Bonnie Zimmerman's Safe Sea of Women (1992), and Palmer's Contemporary Lesbian Writing (1993). I argue that lesbian/feminist literary theory offers particular constructions of sexuality which, while challenging many of the assumptions of heterosexual feminist literary theory, largely ignores the bisexual content of much lesbian fiction, and consequently glosses over some of the tricky areas of gender and sexuality difference. Through this ‘les/bi’ reading I hope to encourage the figure of the bisexual woman to question both constructions and deconstructions of lesbian sexuality. 相似文献
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