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Hein de Haas Mathias Czaika Marie‐Laurence Flahaux Edo Mahendra Katharina Natter Simona Vezzoli María Villares‐Varela 《Population and development review》2019,45(4):885-922
This paper synthesizes insights from new global data on the effectiveness of migration policies. It investigates the complex links between migration policies and migration trends to disentangle policy effects from structural migration determinants. The analysis challenges two central assumptions underpinning the popular idea that migration restrictions have failed to curb migration. First, post‐WWII global migration levels have not accelerated, but remained relatively stable while most shifts in migration patterns have been directional. Second, post‐WWII migration policies have generally liberalized despite political rhetoric suggesting the contrary. While migration policies are generally effective, “substitution effects” can limit their effectiveness, or even make them counterproductive, by geographically diverting migration, interrupting circulation, encouraging unauthorized migration, or prompting “now or never” migration surges. These effects expose fundamental policy dilemmas and highlight the importance of understanding the economic, social, and political trends that shape migration in sometimes counterintuitive, but powerful, ways that largely lie beyond the reach of migration policies. 相似文献
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Metaphors, allegories and other kinds of indirect speech-acts and catachretical phrases are usually considered to be the very opposite of scientific theories. An alternative can be identified in the constructivists’ approach, dealing with catachretical expressions as a starting point for the explication of scientific language games. The aim of this paper is to demonstrate such an alternative point of view, dealing with metaphorical applications of the term “information” within biological narratives. 相似文献
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Christine Mathias Elizabeth Gilman Carolyn Shin William Todd Evans 《Journal of Social Work Education》2015,51(3):S252-S270
University–agency partnerships funded by Title IV-E encourage students to enter the child welfare field by providing student stipends, thus supporting child welfare agency workforce development. This article examines the literature and historical roots of Title IV-E and other partnerships, identifies common structures and outcomes, and discusses the extent to which a structured development and change process supports the California partnership’s core mission to integrate the education and practice communities in child welfare. The partnership is teleological in nature, using a social exchange approach to advance mutuality and a full spectrum of benefits for universities and agencies. Models and best practice elements are presented as examples of how university–agency partnerships may enhance child welfare service delivery. 相似文献
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Mathias Risse 《Social Choice and Welfare》2005,25(1):95-113
Although championed by the Marquis the Condorcet and many others, majority rule has often been rejected as indeterminate,
incoherent, or implausible. Majority rule's arch competitor is the Borda count, proposed by the Count de Borda, and there
has long been a dispute between the two approaches. In several publications, Donald Saari has recently presented what is arguably
the most vigorous and systematic defense of Borda ever developed, a project Saari has supplemented with equally vigorous objections
to majority rule. In this article I argue that both Saari's objections to majority rule and his positive case for the Borda
count fail. I hold the view that defenders of Condorcet cannot muster arguments to convince supporters of Borda, and vice
versa, but here I am only concerned to show that the Count de Borda cannot beat the Marquis de Condorcet. Saari's approach
displays what I take to be widespread fallacies in reasoning about social choice worthy of closer analysis. This debate bears
on important questions in the philosophy of social choice theory. 相似文献
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Vangie A. Foshee Thad Benefield Chirayath Suchindran Susan T. Ennett Karl E. Bauman Katherine J. Karriker‐Jaffe Heathe Luz McNaughton Reyes Jasmine Mathias 《Journal of research on adolescence》2009,19(3):380-400
This study determined the shape of trajectories from ages 13 to 19 of 4 types of dating abuse perpetration and examined whether the demographic characteristics of sex, minority status, socioeconomic status, and family structure systematically explained variation in the trajectories. The data are from 5 waves of data collected from 973 adolescents participating in the control group of a randomized trial. The mean trajectory for psychological dating abuse was positive linear, but the mean trajectories were curvilinear for moderate physical, severe physical, and sexual dating abuse. At all ages, boys reported more severe physical and sexual dating abuse than girls, minorities reported more moderate and severe physical dating abuse than Whites, adolescents in single‐parent households reported more psychological and severe physical dating abuse than those in 2‐parent‐households, and parental education was negatively associated with psychological and moderate physical dating abuse perpetration. The findings have implications for future research and for practice. 相似文献
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Professional production of live TV combines real‐time and recorded video into a single broadcast stream. In “live” TV, non‐live “instant replay” footage can help viewers to make sense of what has just happened. This article shows how multi‐person TV production teams assemble timely and relevant instant replays that can be seamlessly combined with real‐time footage during live broadcasts. Detailed interaction analysis demonstrates how this work is dependent on coordinated practices, and how team members achieve this by orienting to narrative concerns across multiple temporalities to produce topically useful instant replays, displaying clip relevance, and help segueing transitions between the ongoing action and replay. We conclude by examining the interrelationships between the sequential flow of visual content, the role of talk in mediating time‐shifted visual alignments, and how members make their work visible and accountable to one another and to their intended audience. 相似文献