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211.
Marriage outside one's ethnic or racial group constitutes the ultimate test of assimilation. In this research, we offer a new test of theories of assimilation by examining the choice of marriage partners among Mexican Americans, several European immigrant groups, and natives. Data from the 1880 to 1990 Integrated Public Use Microdata Samples (IPUMS) are employed, augmented by additional identification procedures developed for the Hispanic population. Assimilation measured by intermarriage rates varies by ethnic origin with striking affinity in historical patterns for Italians and Mexicans. Density and location of ethnic settlement, sex ratios, and generational mix played a role. Continued immigration marks certain groups, such as Mexicans, as structurally distinct. 相似文献
212.
213.
To date, only four paying space tourists have flown, and the prospect for broad, sustainable space tourism remains a dream. This article notes that there are two types of tourists conflated by the advocates of space tourism. The first are a tiny group of adventurers with significant wealth and other resources who seek thrills and bragging rights. They have enjoyed success in using government-owned resources for their extreme tourism experience by flying on Soyuz capsules operated by Russia, and the International Space Station owned and operated by a consortium of nations as a major research station. The second group seeks more modest excursions with a minimum of risk and a smaller price tag. Only the first group has much prospect for tourism in space in the foreseeable future, but the second group is the more important, and expanding its space tourism opportunities represents the primary means of achieving the goal of opening space to the public. This article also differentiates between private sector suborbital space tourism, which may achieve reality within the next five to seven years, and the prospects for orbital space tourism, which are at least an order of magnitude more difficult and will probably require at least another generation of technological work to achieve. 相似文献
214.
This study revisited the Philadelphia Foot Patrol Experiment and explored the longitudinal deterrent effects of foot patrol in violent crime hot spots using Sherman's (1990) concepts of initial and residual deterrence decay as a theoretical framework. It also explored whether the displacement uncovered during the initial evaluation decayed after the experiment ended. Multilevel growth curve models revealed that beats staffed for 22 weeks had a decaying deterrent effect during the course of the experiment, whereas those staffed for 12 weeks did not. None of the beats had residual deterrence effects relative to the control areas. The displacement uncovered had decayed during the 3 months after the experiment, and it is theoretically plausible that previously displaced offenders returned to the original target areas causing inverse displacement. These results are discussed in the context of Durlauf and Nagin's (2011) recent proposal that prison sentences should be shortened, mandatory minimum statutes repealed, and the cost savings generated by these policy changes shifted into policing budgets to convey more effectively the certainty of detection. It is concluded that if Durlauf and Nagin's proposal is to succeed, then more holistic policing strategies would likely be necessary. Foot patrol as a specific policing tactic seems to fit nicely into a variety of policing paradigms, and suggestions for incorporating them to move beyond strictly enforcement‐based responses are presented. 相似文献
215.
David M. Jenkins Jr. Ph.D. W. Bosseau Murray M.D. Mary J. Kennett Ph.D. D.V.M. Edward L. Hughes M.A. Jacob R. Werner V.M.D. 《Journal of forensic sciences》2013,58(3):684-692
This study investigated and evaluated the safety margins of the continuous long duration (up to 30 min) effect of the TASER X26 waveform, using a Sus scrofa model. Long duration continuous stimulus has not been evaluated on humans or human surrogates prior to this study. Swine were used as models due to similarities with humans in their skin and cardiovascular systems. Very long duration was used to determine both exposure dose and possible adverse physiological effects of dose. The trial began with an application of 10 min, and subsequent animals received increasing exposure time up to a survived maximum duration of 30 min. At the onset of this work, it was hypothesized that there would be a time limit after which most animals would not survive consistent with increased dose response. However, this hypothesis was not supported by the experimental results. All animals (10 of 10) survived up to 3 min. Seven of the 10 animals survived up to a 10‐min exposure and 3 of 5 animals with a 30‐min target exposure survived the full exposure. Surviving animals were recovered and observed for 24 h, with no postrecovery deaths. This suggests that swine (based on physiology) will not experience a fatal event when exposed to the TASER X26 for a continuous 3 min. Conclusions regarding longer duration (10–30 min) are not as certain due to the small sample sizes at these time intervals. 相似文献
216.
Minzee Kim Wesley Longhofer Elizabeth Heger Boyle Hollie Nyseth Brehm 《Law & society review》2013,47(3):589-619
Using the case of adolescent fertility, we ask the questions of whether and when national laws have an effect on outcomes above and beyond the effects of international law and global organizing. To answer these questions, we utilize a fixed‐effect time‐series regression model to analyze the impact of minimum‐age‐of‐marriage laws in 115 poor‐ and middle‐income countries from 1989 to 2007. We find that countries with strict laws setting the minimum age of marriage at 18 experienced the most dramatic decline in rates of adolescent fertility. Trends in countries that set this age at 18 but allowed exceptions (for example, marriage with parental consent) were indistinguishable from countries that had no such minimum‐age‐of‐marriage law. Thus, policies that adhere strictly to global norms are more likely to elicit desired outcomes. The article concludes with a discussion of what national law means in a diffuse global system where multiple actors and institutions make the independent effect of law difficult to identify. 相似文献
217.
Elizabeth J. D'Amico Dionne Barnes Mary Lou Gilbert Gery Ryan Suzanne L. Wenzel 《Journal of prevention & intervention in the community》2013,41(2):112-128
Little is known about the transition to adulthood for adolescent females and young women who are impoverished and homeless. Co-occurrence of drug use and abuse, HIV risk, and victimization is notable among homeless women, highlighting the need for comprehensive interventions. Unfortunately, evidence-based prevention approaches addressing these inter-related problems among impoverished women transitioning into adulthood are lacking. To address this gap, we designed an innovative prevention program by utilizing open- and closed-ended interview data from impoverished women (n = 20), focus groups with community experts and providers (2 groups; n = 9), and a theoretical framework to direct the research. Information provided by our focus groups and interviews with women supported our theoretical framework and highlighted the importance of addressing normative information, providing skills training, and utilizing a non-confrontational approach when discussing these sensitive issues. 相似文献
218.
Community-based learning offers students the opportunity to understand important concepts through their own experiences. Two courses on food and hunger in society, one a first-year seminar of 12 students and one an upper-level psychology course of 20 students, made site visits to local farms, markets, and a soup kitchen while reading about the issues and discussing them in class. At the end of the semester, each student wrote a short self-evaluation in which they were invited to discuss the aspects of the course that affected them most. Student responses suggest that the experiential component of the course was disproportionately powerful, impelling many of them to make changes in their lives as a result. 相似文献
219.
Vicky S. Karahalios Shannon M. Williams Elizabeth Matteo 《Journal of prevention & intervention in the community》2013,41(1):15-23
Undergraduate students (218 women, 57 men) attending a Roman Catholic, suburban university with a Franciscan charism tradition completed open-ended items assessing their perception on the mission, vision, and values of their university. However, only 41 lower division, first-year students (33 women, 8 men) and 29 upper division students (22 women, 7 men) actually wrote about different aspects of their school's identity. Qualitative themes emerged in regard to students' assessment of their school identity, such as university mission activities are perceived important, and overall support for different institutional values within the university community. 相似文献
220.
Motivated by recent work suggesting that low‐income citizens are virtually ignored in the American policymaking process, this article asks whether a similar bias shapes the policy positions adopted by political parties much earlier in the policymaking process. While the normative hope is that parties serve as linkage institutions enhancing representation of those with fewer resources to organize, the resource‐dependent campaign environment in which parties operate provides incentives to appeal to citizens with the greatest resources. Using newly developed measures of state party positions, we examine whether low‐income preferences get incorporated in parties’ campaign appeals at this early stage in the policymaking process—finding little evidence that they do. This differential responsiveness was most pronounced for Democratic parties in states with greater income inequality; it was least evident for Republicans’ social policy platforms. We discuss the implications of these findings for representation in this era of growing economic inequality. 相似文献