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161.
In the interest of developing a more holistic and integrated understanding of young children's experience of stories, this study describes preschoolers' emotional attachments to stories and the cultural beliefs and practices which surround such attachments. Thirty-two European-American, middle-class families, participated in an interview study of their children's story attachments, and five of these mothers also participated in a short-term, longitudinal diary study. Every child experienced at least two emotional attachments to stories. Children were captivated by stories presented in different media, with many attachments occurring around video stories in addition to books. They expressed their attachments by repeatedly requesting the story, expressing strong feelings, and enacting the story in pretend play. Story attachments were social in two fundamental ways: children created relationships with the characters in their favorite stories, and story attachments emerged in the context of relationships with caregivers whose beliefs and practices supported such attachments.  相似文献   
162.
This article examines the involvement of ministries of health in making health service coverage decisions in Denmark, England, France and Germany. The study aims to inform debate in England about the feasibility of reducing perceived ministerial and bureaucratic ‘interference’ in decisions affecting the National Health Service, based on interviews with senior government officials and other health system stakeholders. Ministries of health differ in their involvement in health system governance and coverage decisions (‘the benefits package’), reflecting differences in institutional arrangements. In all four countries, organizations at arm's length or independent from government are either involved in providing technical advice to the ministry of health or have been mandated to take these decisions themselves. However, ministries of health occasionally intervene in the decision‐making process or ignore the advice of these organizations. The Department of Health in England is not an aberrant case, at least in relation to coverage decisions. Indeed, ministries of health in Denmark and France play a larger role in making these decisions. Public pressure, often amplified by the media, is a shared reason for ministerial and ministry involvement in all four countries. This dynamic may thus limit the feasibility of attempts to further separate the NHS from both the Department of Health and wider political pressures.  相似文献   
163.
The following is an evaluation of “Mad Money” host Jim Cramer's image restoration attempts during his March 2009 week-long media battle with Jon Stewart, host of “The Daily Show.” Using Benoit's (1995) image restoration theory as a conceptual framework, it is apparent that Cramer failed in restoring his reputation because he frequently coupled incongruent strategies and was unable to grasp the dynamic nature of communicative image restoration.  相似文献   
164.
165.
This article presents the results of a simulation study investigating the performance of an approach developed by Miller and Landis (1991) for the analysis of clustered categorical responses. Evaluation of this “two-step” approach, which utilizes the method of moments to estimate the extra-variation pardmeters and subsequently incorporates these parameters into estimating equations for modelling the marginal expectations, is carried out in an experimental setting involving a comparison between two groups of observations. We assume that data for both groups are collected from each cluster and responses are measured on a three-point ordinal scale. The performance of the estimators used in both “steps” of the analysisis investigated and comparisons are made to an alternative analysismethod that ignores the clustering. The results indicate that in the chosen setting the test for a difference between groups generally operatbs at the nominal α=0.05 for 10 or more clusters and hasincreasing power with both an increasing number of clusters and an inrreasing treatment effect. These results provide a striking contrasc to those obtained from an improper analysis that ignores clustering.  相似文献   
166.
The effects of motherhood timing on career path   总被引:2,自引:1,他引:1  
This paper estimates the effects of motherhood timing on female career path, using biological fertility shocks to instrument for age at first birth. Motherhood delay leads to a substantial increase in earnings of 9% per year of delay, an increase in wages of 3%, and an increase in work hours of 6%. Supporting a human capital story, the advantage is largest for college-educated women and those in professional and managerial occupations. Panel estimation reveals both fixed wage penalties and lower returns to experience for mothers, suggesting that a “mommy track” is the source of the timing effect.  相似文献   
167.
168.
How do we know things? The question of epistemology – which drives both the sociology and philosophy of science – is also a crucial question for political sociology. Knowledge is essential to even the most basic and foundational of political processes and institutions. In 2000, for example, the transition of power in the US presidential election hung for 36 days on uncertainty over a seemingly simple question of fact: who won the most votes in Florida? A few years later, disputed factual claims about Iraq's possession of weapons of mass destruction unraveled, calling into question key justifications of the US decision to invade Iraq in 2003 and significantly weakening perceived US legitimacy. Yet, surprisingly, sociologists and political scientists know relatively little about how knowledge gets made in political communities, nor how the making of knowledge is tied to other key aspects of political life, such as identity, authority, legitimacy, and accountability.  相似文献   
169.
J Miller  M M Dore 《Child welfare》1991,70(4):437-449
The overwhelming obstacles to effective CPS intervention created by increasing reports of abuse and neglect, funding shortfalls, and the lack of qualified workers have prompted national efforts to reform the public child welfare system in the United States. Organizations such as the American Public Welfare Association, the Children's Defense Fund, the Child Welfare League of America, and the National Association of Social Workers are currently working closely with other national organizations to develop legislative proposals that will enable child welfare agencies to be more responsive to the needs of children and families. A critical component of this reform is the need to recruit, train, and retain qualified and competent CPS workers. The four training programs described in this article are examples of innovative programs seeking to enhance service delivery by enhancing the knowledge and skills of their staff members. Although the four programs were developed in very different political and social climates and within diverse organizational structures, they all provide useful lessons in how to develop efficient and effective training for workers delivering protective services for children. Any national, state, or local efforts to design and develop new CPS training programs should take into account the significant strides made by these agencies.  相似文献   
170.
Graphs that arise from the finite element or finite difference methods often include geometric information such as the coordinates of the nodes of the graph. The geometric separator algorithm of Miller, Teng, Thurston, and Vavasis uses some of the available geometric information to find small node separators of graphs. The algorithm utilizes a random sampling technique based on the uniform distribution to find a good separator. We show that sampling from an elliptic distribution based on the inertia matrix of the graph can significantly improve the quality of the separator. More generally, given a cost function f on the unit d-sphere Ud, we can define an elliptic distribution based on the second moments of f. The expectation of f with respect to the elliptic distribution is less than or equal to the expectation with respect to the uniform distribution, with equality only in degenerate cases. We also demonstrate experimentally that the benefit gained by the use of the additional geometric information is significant. Some previous algorithms have used the moments of inertia heuristically, and suffer from extremely poor worst case performance. This is the first result, to our knowledge, that incorporates the moments of inertia into a provably good strategy.  相似文献   
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