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71.
A group of 110 midlife lesbians filled out several open-ended essay questions on adolescence and midlife. Half the sample described themselves as non-traditional adolescents, e.g., bookish, rebellious or athletic. Approximately half the midlife lesbians had non-traditional dreams in adolescence, that is dreams of careers, adventure and having an impact on the world. Women who labeled themselves as "lesbians" in their teens and twenties were more likely to have been non-traditional adolescents. Women who labeled themselves as "lesbians" in midlife were more traditional as adolescents. The majority of lesbians in this sample were highly educated professional women. The data suggested that adolescent dreams and interests sewed as a source of vitality and creativity for midlife lesbians. 相似文献
72.
Lawrence C. Hamilton Kei Saito Philip A. Loring Richard B. Lammers Henry P. Huntington 《Population and environment》2016,38(2):115-133
Residents of towns and villages in Arctic Alaska live on “the front line of climate change.” Some communities face immediate threats from erosion and flooding associated with thawing permafrost, increasing river flows, and reduced sea ice protection of shorelines. The term climigration, referring to migration caused by climate change, originally was coined for these places. Although initial applications emphasized the need for government relocation policies, it has elsewhere been applied more broadly to encompass unplanned migration as well. Some historical movements have been attributed to climate change, but closer study tends to find multiple causes, making it difficult to quantify the climate contribution. Clearer attribution might come from comparisons of migration rates among places that are similar in most respects, apart from known climatic impacts. We apply this approach using annual 1990–2014 time series on 43 Arctic Alaska towns and villages. Within-community time plots show no indication of enhanced out-migration from the most at-risk communities. More formally, there is no significant difference between net migration rates of at-risk and other places, testing several alternative classifications. Although climigration is not detectable to date, growing risks make either planned or unplanned movements unavoidable in the near future. 相似文献
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We consider three interval estimators for linear functions of Poisson rates: a Wald interval, a t interval with Satterthwaite's degrees of freedom, and a Bayes interval using noninformative priors. The differences in these intervals are illustrated using data from the Crash Records Bureau of the Texas Department of Public Safety. We then investigate the relative performance of these intervals via a simulation study. This study demonstrates that the Wald interval performs poorly when expected counts are less than 5, while the interval based on the noninformative prior performs best. It also shows that the Bayes interval and the interval based on the t distribution perform comparably well for more moderate expected counts. 相似文献
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Players often have flexibility in when they move and thus whether a game is played simultaneously or sequentially may be endogenously determined. For 2 × 2 games, we analyze this using an extended game. In a stage prior to actual play, players choose in which of two periods to move. A player moving at the first opportunity knows when his opponent will move. A player moving at the second turn learns the first mover's action. If both select the same turn, they play a simultaneous move subgame.If both players have dominant strategies in the basic game, equilibrium payoffs in the basic and extended games are identical. If only one player has a dominant strategy or if the unique equilibrium in the basic game is in mixed strategies, then the extended game equilibrium payoffs differ if and only if some pair of pure strategies Pareto dominates the basic game simultaneous play payoffs. If so, sequential play attains the Pareto dominating payoffs. The mixed strategy equilibrium occurs only when it is not Pareto dominated by some pair of pure strategies.In an alternative extended game, players cannot observe delay by opponents at the first turn. Results for 2×2 games are essentially the same as with observable delay, differing only when only one player has a dominant strategy. 相似文献
78.
Although work experience has been widely recommended as beneficial to adolescent development, there is little empirical support for this recommendation. The Youth Conservation Corps (YCC), combining as it does some of the best features of both paid work and unpaid community service, offers an opportunity to explore the developmental impact of work experience. However, the need to pay as much attention to the problems of measurement as to the programs themselves dictates simultaneous evaluation of both programs and measures. 相似文献
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Hamilton Wilson JE Hobbs H Archie S 《Journal of psychosocial nursing and mental health services》2005,43(6):22-28
This article shares information about an exciting new approach in psychiatry. During the past 12 years, the authors have worked with young people experiencing their first episode of psychosis. It is clear that intervention at the earliest stages of psychotic illness allows clinicians to make a significant difference in the lives of young people and their families. This article summarizes current intervention strategies, which are considered best practice guidelines for early treatment. 相似文献