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41.
早期酋长制群体的聚落形态比较研究——以内蒙古东部、安第斯山北部和美洲中部三个地区为例 总被引:1,自引:0,他引:1
对内蒙古东部、安第斯山北部和美洲中部三个地区的早期酋长制群体的聚落形态进 行的比较研究表明,尽管这三个地区的发展过程大致相当,但在这三个地区中,大体类似的转变 却以不同的方式发生,从而导致了三个各具特色的等级社会的出现。最初的、大规模的、以等级 制度原则组织起来的酋长制群体出现后,其发展轨道的早期阶段明显地为后来的、较大的、更复 杂的政治实体即国家的出现创造了条件。通过地域性聚落分析,可以发现这三个地区在不同规模 层次上的人口和社会组织的异同,其中在赤峰和奥哈卡(Oaxaca)地区都存在的小型群体却不见 于马格达雷那高地(AltoMagdalena)的现象,需要进行更深入的研究,才能进一步揭示出在马 格达雷那高地是什么样的社会交流把这些家庭联合成更大的社会团体。 相似文献
42.
The article describes the development of Swedish environmental policy by paying attention to the context of Swedish political culture. It describes the successes and, mainly, the failures of Sweden's environmental policy since the late sixties and traces its less‐than‐satisfactory state to the political culture of a welfare state which for a long time tended to view environmental concerns as likely to upset the socio‐economic welfare policies based on cost‐effectiveness and anti‐inflationary policies. 相似文献
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Morey MC Ekelund C Pearson M Crowley G Peterson M Sloane R Pieper C McConnell E Bosworth H 《Journal of aging and physical activity》2006,14(3):324-343
The authors describe a medical center-based randomized trial aimed at determining the feasibility and effectiveness of partnering patients and primary-care providers with an exercise health counselor. Study participants included 165 veterans age 70 years and older. The primary end point was change in physical activity at 3 and 6 months comparing patients receiving high-intensity physical activity counseling, attention control counseling, and usual care after receiving standardized clinic-based counseling. We noted a significant Group x Time interaction (p = .041) for physical activity frequency and a similar effect for caloric expenditure (p = .054). Participants receiving high-intensity counseling and usual care increased physical activity over the short term, but those with usual care returned to baseline by the end of the study. The intervention was well received by practitioners and patients. We conclude that partnering primary-care providers with specialized exercise counselors for age- and health-appropriate physical activity counseling is effective. 相似文献
46.
Despite the simplicity of the Bernoulli process, developing good confidence interval procedures for its parameter—the probability of success p—is deceptively difficult. The binary data yield a discrete number of successes from a discrete number of trials, n. This discreteness results in actual coverage probabilities that oscillate with the n for fixed values of p (and with p for fixed n). Moreover, this oscillation necessitates a large sample size to guarantee a good coverage probability when p is close to 0 or 1. It is well known that the Wilson procedure is superior to many existing procedures because it is less sensitive to p than any other procedures, therefore it is less costly. The procedures proposed in this article work as well as the Wilson procedure when 0.1 ≤p ≤ 0.9, and are even less sensitive (i.e., more robust) than the Wilson procedure when p is close to 0 or 1. Specifically, when the nominal coverage probability is 0.95, the Wilson procedure requires a sample size 1, 021 to guarantee that the coverage probabilities stay above 0.92 for any 0.001 ≤ min {p, 1 ?p} <0.01. By contrast, our procedures guarantee the same coverage probabilities but only need a sample size 177 without increasing either the expected interval width or the standard deviation of the interval width. 相似文献
47.
The alias method of Walker is a clever, new, fast method for generating random variables from an arbitrary, specified discrete distribution. A simple probabilistic proof is given, in terms of mixtures, that the method works for any discrete distribution with a finite number of outcomes. A more efficient version of the table-generating portion of the method is described. Finally, a brief discussion on efficiency of the method is given. We believe that the generality, speed, and simplicity of the method make it attractive for use in generating discrete random variables. 相似文献
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The absence of violence against children is a fundamental children's right and a major milestone of civilized society. Similarly, reports on incidences of violence by children and youth, including severe cases with devastating consequences, speak to the need that the trauma of exposure to violence in childhood needs to be addressed. While violence and its risk factors are generally understood, what is less clear are the essential protective factors, how we can identify those as early as possible, and how we can use them to prevent and address the trauma of violence exposure in children and youth. In this report, I review pathways of child and youth violence through the lens of social-emotional development as a central protective factor. Negative emotions of frustration and anger can underlie violence and aggression. Kind emotions, such as caring and our ability to connect with others emotionally, can serve as social-emotional protective factors. A brief review of the central social-emotional processes and their development is provided, including the human capacity to feel with others and express empathy, be emotionally aware and care about the effects of one's own actions on others, and be able to regulate the self and their emotions. Given the negative widespread and long-term impact of exposure to violence, I describe research-informed attempts to prevent violence exposure across development. Taking a humanistic, strength-based perspective, the focus is on social-emotional protective factors to address violence and nurture mental health in every child. I conclude with recommendations for practice and policy. 相似文献
50.
Tina E. Wilson 《Social Work Education》2020,39(5):572-583
ABSTRACT This paper is about the changing imaginations of social work in an increasingly entangled world. It is also about the ways in which literatures shared across time and space encourage us to identify with larger collectivities. My central argument is that if social work is to find a larger vision in the wake of the failure of a range of modern progress narratives, we must engage differently with the challenge posed by multiplying and sometimes conflicting knowledge communities. Thinking with contemporary debates in transdisciplinary critical social theory, I nominate and explore a number of alternative heuristics—‘generational problematic,’ ‘translational space,’ and ‘imagined communities’—in support of future work on the uneven temporal and spatial communities of affiliation that reproduce and change what social work is, or could be, about. I conclude with theoretical suggestions, and some thoughts toward how social work education might better support incoming generations to locate themselves within the broader life-course of the discipline and profession. 相似文献