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131.
The current study examined the settings in which adolescents use alcohol and drugs, emphasizing sex and peer group differences in where substance use occurs, settings associated with more problematic substance use, and settings potentially serving as sites of initiation of adolescent substance use. Subjects were 449 juniors and seniors attending two Midwestern high schools (51% male; aged 16–19) who completed in-class surveys. Few sex differences in settings of substance use were found, although girls were more likely than boys to drink in family settings. More severe substance use was associated with a higher likelihood of drinking at school. Moreover, alcohol users were more likely to report drinking in their own homes and at their friends' homes than abstainers were to indicate selecting these settings to use alcohol if they were to do so. Drug users were more likely to report substance use outdoors, at their friends' homes, at social parties, and at school than were abstainers to indicate selecting these settings to use drugs if they were to do so. Implications of these findings for understanding the epidemiology of substance use and high-risk settings for the initiation and escalation of substance using behaviors are discussed. 相似文献
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133.
Andrea Park 《北京周报(英文版)》2012,(39):34
正China looks to Xinjiang for new energy The name Xinjiang literally translates into new frontier, and the name of the autonomous region rings especially true as 相似文献
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Giovanni Abramo Ciriaco Andrea D’Angelo Flavia Di Costa Marco Solazzi 《The Journal of Technology Transfer》2011,36(1):84-100
This study concerns the market for research collaboration between industry and universities. It presents an analysis of the
population of all Italian university–industry collaborations that resulted in at least one international scientific publication
between 2001 and 2003. Using spatial and bibliometric analysis relating to scientific output of university researchers, the
study shows the importance of geographic proximity in companies’ choices of university partner. The analysis also reveals
inefficiency in the market: in a large proportion of cases private companies could have chosen more qualified research partners
in universities located closer to the place of business. 相似文献
137.
Chandler A 《Nationalities Papers》2011,39(1):55-75
This paper offers hypotheses on the role that state social welfare measures can play in reflecting nationalism and in aggravating interethnic tensions. Social welfare is often overlooked in theoretical literature on nationalism, because of the widespread assumption that the welfare state promotes social cohesion. However, social welfare systems may face contradictions between the goal of promoting universal access to all citizens on the one hand, and social pressures to recognize particular groups in distinct ways on the other. Examples from the post-Soviet context (particularly Russia) are offered to illustrate the ways in which social welfare issues may be perceived as having ethnic connotations. 相似文献
138.
This work investigates the process of position-taking, focussing on the factional bargaining within the party. Exploiting two recently built datasets that estimated the policy positions of Italian parties and factions from 1946 to 2010, we investigate if and to what extent factions bind the party leader in choosing the platform. We find confirmation for the idea that party positions are linked to factional preferences. Overall, the party works as a ‘bounded oligarchy’. Furthermore, the electoral payoff of party unity increases the impact of factional constraints when general elections approach. In line with the cartel party theory, however, autonomous leaders who are directly elected by a wider selectorate can get rid of factional ties choosing more moderate and vote-maximizing platforms. 相似文献
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140.
Ríos L García-Rubio A Martínez B Alonso A Puente J 《Forensic science international》2012,219(1-3):e4-e9
The identification process of a mass grave from the Spanish Civil War (1936-1939) is presented. The presumed location of the grave, as well as the presumed number and identities of the persons buried in the grave were obtained exclusively from witnesses' and relatives' testimonies. In agreement with the testimonies, the grave was located at the indicated location and five skeletons were exhumed. Also in agreement with the testimonies, the osteological and DNA study led investigators to propose the identification of two kin groups, a father and his son and a pair of brothers. But the genetic study did not support the identification of a fifth man presumed to have been buried in the grave. The differences and similarities between this case and another case reported earlier are discussed. 相似文献