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491.
Johan Vanderfaeillie Frank Van Holen Femke Vanschoonlandt Marijke Robberechts Tim Stroobants 《Children and youth services review》2013
Due to prior experiences of trauma and abuse, many foster children have behavioral problems. The placement of the child in a family foster home is expected to reduce the behavioral problems. However, this expectation is seldom met and mostly behavioral problems increase or remain stable during placement. Research on the development of behavioral problems in foster children is scarce. Moreover, most of the research results are situated on a group level, which obscures the development of problem behavior on a case level. This study investigated the development of problem behavior of 49 foster children on a case level and the association of global, contextual, familial and child factors with the increase or decrease of problem behavior. Over a two year period 18 foster children had more, 23 just as much and 8 less problem behavior. An increase was associated with the use of more negative parenting strategies by the foster mothers. A decrease was related to the use of supportive parenting. Support of foster parents aiming at reducing the use of negative discipline practices and promoting the use of supportive parenting may have a positive effect on the development of foster children. 相似文献
492.
Elsewhere (Groseclose and Milyo 2010), we examine a game where each legislator has preferences over (i) the resulting policy and (ii) how he or she votes. The latter preferences are especially important when the legislator is not pivotal. We show that when the game follows the normal rules of legislatures—most important, that legislators can change their vote after seeing how their fellow legislators have voted—then the only possible equilibrium is one where all legislators ignore their policy preferences. That is, each legislator votes as if he or she is not pivotal. The result, consistent with empirical studies of Congress, suggests that legislators should tend to vote sincerely, rather than sophisticatedly. In this paper we examine how outcomes change if we change the rules for voting. Namely, instead of a simultaneous game, we consider a game where legislators vote sequentially in a pre-determined order. We show that, opposite to the simultaneous game, an alternative wins if and only if a majority of legislators’ policy preferences favor that alternative. Our results suggest that if Congress adopted this change in rules, then sophisticated voting would become frequent instead of rare. 相似文献
493.
基于480家机构的以自我为中心的网络数据,分析了联盟组合多样性和财务绩效、激进式创新绩效、渐进式创新绩效等三个重要绩效维度之间的关系.其中,联盟组合多样性与财务绩效负相关;而联盟组合多样性与激进式创新绩效呈现倒U形关系;联盟组合多样性与渐进式创新绩效呈现递减收益正相关.结果表明,管理者应该意识到联盟组合多样性的可能的消极影响,并且意识到不同水平的联盟组合多样性是最有益的. 相似文献
494.
Miller T 《Demography》2001,38(2):215-226
Official Medicare projections forecast that the elderly population will be less healthy and more costly over the next century. This prediction stems from the use of age as an indicator of health status: increases in longevity are assumed to increase demand for health care as individuals survive to older and higher-use ages. In this paper I suggest an alternative approach, in which time until death replaces age as the demographic indicator of health status. Increases in longevity are assumed to postpone the higher Medicare use and costs associated with the final decade of life. I contrast the two approaches, using mortality forecasts consistent with recent projections from the U.S. Census Bureau and the Social Security Administration. The time-until-death method yields significantly lower-cost forecasts. The hypothetical cost savings from improved health care small, however, relative to the size of the Medicare solvency problem caused by population aging. 相似文献
495.
Rogers Richard G. Carrigan Jacqueline A. Kovar Mary Grace 《Population research and policy review》1997,16(3):213-224
This study investigates how age and race are reported in interviews and on death certificates and how these demographic assignments affect life expectancy estimates for the total population, for males and females, and for blacks and whites. Differential reporting of demographic characteristics can produce different estimated life expectancies and thus differential assessments of the sex and race gaps in life expectancy. This difference underscores the need to define demographic characteristics carefully and to examine multivariate models and projections cautiously. 相似文献
496.
ABSTRACT This article examines entries into homelessness among adults who identify as LGBTQ2S (lesbian, gay, bisexual, transgender, queer, two-spirit). Twenty LGBTQ2S adults who were currently or formerly homeless participated in one qualitative interview. The interview protocol included questions on the participants’ history of homelessness, causes of homelessness, and relationship of their gender and/or sexual identity to their homelessness. Data were analyzed using an iterative coding process. Results demonstrated that the participants listed both structural (i.e., discrimination) and intrapersonal (i.e., substance use) variables related to their homelessness. In particular, substance abuse was a common antecedent of their homelessness, and some participants linked their homeless experiences to discrimination and victimization based on their sexual and/or gender identity. The results are discussed in terms of interventions to prevent homelessness among LGBTQ2S adults and support their exits out of homelessness. 相似文献
497.
This case study examines the shareholder revolt initiated by a small activist shareholder, which eventually thwarted a takeover
bid by Deutsche Boerse for the London Stock Exchange and forced the resignation of two of its highest profile board members.
Primarily the case marks the emergence of the Anglo-American style shareholder rights movement in a country that offers only
limited power to the shareholders of corporations. In the process it illustrates the mechanisms by which functional convergence
of corporate governance regimes can occur long before the legal framework catches up. In Germany, the corporate governance
regime requires stakeholder interests to be maximised rather than the sole interests of shareholders. This paper chronicles
the shareholder actions that forced the takeover bid to be abandoned and seeks to provide an understanding of the motivations
behind the activists’ campaign and the process by which they were able to overcome difficult odds and win their campaign.
In this respect, it provides a useful insight into the processes used by relatively small investors to exercise their rights
to thwart a takeover offer and topple some powerful corporate executives. Furthermore, the case illustrates how a single issue
such as the strategic logic or the value creation potential of a takeover bid can rapidly spiral to become a wider campaign
over deeply rooted governance concerns at targeted companies. Event study analysis reveals the stock market reaction to the
activists’ intervention. Thirdly, the case sheds light on the importance of communication between management and shareholders
especially when corporate decisions of great strategic import, such as a takeover, are being implemented. The globalisation
of stock markets is empowering shareholders to assert their rights and their activism is driving corporate governance regimes
towards greater convergence and recognition of the primacy of shareholder interests. Overall, the case raises a number of
important issues regarding the corporate governance regime in Germany, the challenges posed by overseas investors, and the
international convergence of corporate governance regimes. The case further suggests an additional mechanism by which international
governance systems can converge functionally towards a common theme even if the form of national regimes remains largely unaltered.
Our results are consistent with the institutional theory perspective of coercive isomorphism in adopting the shareholder value
paradigm by Deutsche Boerse. 相似文献
498.
Meditation lowers stress and supports forgiveness among college students: a randomized controlled trial 总被引:2,自引:0,他引:2
Oman D Shapiro SL Thoresen CE Plante TG Flinders T 《Journal of American college health : J of ACH》2008,56(5):569-578
OBJECTIVE AND PARTICIPANTS: The authors evaluated the effects on stress, rumination, forgiveness, and hope of two 8-week, 90-min/wk training programs for college undergraduates in meditation-based stress-management tools. METHODS: After a pretest, the authors randomly allocated college undergraduates to training in mindfulness-based stress reduction (MBSR; n = 15), Easwaran's Eight-Point Program (EPP; n = 14), or wait-list control (n = 15). The authors gathered pretest, posttest, and 8-week follow-up data on self-report outcome measures. RESULTS: The authors observed no post-treatment differences between MBSR and EPP or between posttest and 8-week follow-up (p > .10). Compared with controls, treated participants (n = 29) demonstrated significant benefits for stress (p < .05, Cohen's d = -.45) and forgiveness (p < .05, d = .34) and marginal benefits for rumination (p < .10, d = -.34). CONCLUSIONS: Evidence suggests that meditation-based stress-management practices reduce stress and enhance forgiveness among college undergraduates. Such programs merit further study as potential health-promotion tools for college populations. 相似文献
499.
Attention-deficit/hyperactivity disorder (ADHD) is a common mental health condition that affects children, adolescents, and adults. Because it is a chronic condition and typically requires effective treatment for several years or more, information on the benefits and risks of long-term pharmacotherapy for ADHD is vital to clinicians. This article reviews the emerging literature on the safety of long-term stimulant medications in ADHD-the most commonly prescribed medications for this condition. Common side effects, including cardiovascular effects, growth effects, and tics, are discussed, as well as treatment of children younger than age 6 and evidence of carcinogenic and reproductive effects. 相似文献
500.