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71.
Les données du Conseil scolaire du district de Toronto sont utilisées pour déterminer quelles sont les répercussions de vivre sous le seuil de faible revenu (SFR) sur le décrochage à l'école secondaire, en tenant compte du statut de la génération d'immigrants ainsi que d'une diversité de facteurs de risques (par exemple, le pays d'origine, l'âge à l'entrée de l'école secondaire, la réussite scolaire). Les résultats ont indiqué que la mesure SFR du voisinage constituait un prédicteur significatif du décrochage scolaire, indépendamment du statut d'immigrant. L'explication du taux de décrochage des immigrants à partir du facteur de la génération n'a obtenu que peu de soutien. La région d'origine s'est avérée un prédicteur marquant du décrochage où l'on constatait des différences entre les groupes d'immigrants et entre les étudiants immigrants et les étudiants originaires du pays. While education statistics confirm that there is little difference in the dropout rates of native‐born and immigrant youth, analyses of Toronto District School Board (TDSB) data have revealed significant variation in school persistence within immigrant groups. Among newcomer youth, the decision to leave school early has been reported to be strongly influenced by socioeconomic status as well as such factors as country of origin, age at arrival, generational status, family structure, and academic performance. While living in low‐income conditions is thought to place both foreign‐ and Canadian‐born youth at risk of poor school performance and early school withdrawal, their substantially higher incidence of poverty suggests that today's immigrant youth are likely to face greater obstacles to academic success that may in turn have detrimental, long‐term consequences. This paper uses TDSB data to investigate the extent to which living below the low‐income cutoff affects the likelihood of dropping out of secondary school, while taking into account generational status as well as a variety risk factors, noted above. Policy implications are discussed.  相似文献   
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Summary This paper examines the interaction between the organizationalstructure of social services departments and procedures foradmission into residential care. By drawing on research experiencea 'placements table' is proposed which contains the key operationaldecisionstaken by the department when the client becomes a resident.It is argued that, in accordance with the structure of the department,it is possible to suggest appropriate staff to make each keydecision in order that departmental criteria for admissionsmay be met.  相似文献   
74.
Correspondence to Ruth Landau, Paul Baerwald School of Social Work, The Hebrew University of Jerusalem, Mount Scopus, Jerusalem, Israel. Summary The political and economic changes presently taking place inthe Central and Eastern European countries are accompanied byprofound social changes for which, in terms of personal well-being,older and disabled people pay the highest price. Having lostthe security of a minimum standard of living, many are exposedto poverty in its broadest sense. The collapse of governmentalarrangements to provide for the minimum needs of this populationled to the establishment of non-governmental voluntary socialagencies. Unfortunately, these are characterized by limitedresources on the one hand, and lack of trained and skilled socialwork staff on the other. Based on the experience of a Hungariannon-governmental social agency, a model for eligibility criteriafor cash assistance under these circumstances, taking vulnerabilityas a key concept, is suggested for the benefit and dignity ofthose most in need.  相似文献   
75.
The sociology of knowledge is a heterogeneous set of theories which generally focuses on the social origins of meaning. Strong arguments, epitomized by Durkheim's late work, have hypothesized that the very concepts our minds use to structure experience are constructed through social processes. This view has come under attack from theorists influenced by recent work in developmental psychology that has demonstrated some awareness of these categories in pre‐socialized infants. However, further studies have shown that the innate abilities infants display differ in systematic and theoretically significant ways from adults' explicit knowledge. This paper moves beyond the constructionist/nativist dichotomy by outlining the complex relationships between innate intelligence and explicit knowledge. I end by suggesting that there are four, distinct ways the social world influences thought‐ facilitation, division, specification, and construction.  相似文献   
76.
Summary Organisations can absorb successfully only a few fundamentalinnovations within a short period of time. It is therefore importantfor the designers of innovations to ensure that they directlyand substantially contribute to solving important problems,and for agencies to concentrate their innovative activity onthose that do so contribute. The first aim of this paper isto analyse the policy context so as to clarify the nature ofthe problems that make innovation in the care of the elderlyimperative and show how features of the Community Care Projectcontribute to their solution. The second aim is to provide somepreliminary evidence of the success of the scheme. The analysisof data for seventy persons in the experimental and controlgroups shows that the experimental group fared better in a numberof important ways; and that the gains appear to have been madeat no extra cost to the social services department. Therefore,it is concluded, the adoption of the scheme may contribute tothe technical progress needed in the provision of social serviceto the elderly with needs at or above the margin for residentialcare.  相似文献   
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78.
A two-way contingency table in which both variables have the same categories is termed a symmetric table. In many applications, because of the social processes involved, most of the observations lie on the main diagonal and the off-diagonal counts are small. For these tables, the model of independence is implausible and interest is then focussed on the off-diagonal cells and the models of quasi-independence and quasi-symmetry. For ordinal variables, a linear-by-linear association model can be used to model the interaction structure. For sparse tables, large-sample goodness-of-fit tests are often unreliable and one should use an exact test. In this paper, we review exact tests and the computing problems involved. We propose new recursive algorithms for exact goodness-of-fit tests of quasi-independence, quasi-symmetry, linear-by-linear association and some related models. We propose that all computations be carried out using symbolic computation and rational arithmetic in order to calculate the exact p-values accurately and describe how we implemented our proposals. Two examples are presented.  相似文献   
79.
Abstract. This article studies a method to estimate the parameters governing the distribution of a stationary marked Gibbs point process. This procedure, known as the Takacs–Fiksel method, is based on the estimation of the left and right hand sides of the Georgii–Nguyen–Zessin formula and leads to a family of estimators due to the possible choices of test functions. We propose several examples illustrating the interest and flexibility of this procedure. We also provide sufficient conditions based on the model and the test functions to derive asymptotic properties (consistency and asymptotic normality) of the resulting estimator. The different assumptions are discussed for exponential family models and for a large class of test functions. A short simulation study is proposed to assess the correctness of the methodology and the asymptotic results.  相似文献   
80.
We examine how direct to consumer advertising affects the delay between diagnosis and pharmacological treatment for patients suffering from a common chronic disease. The primary data for this study consist of patients diagnosed with osteoarthritis (N = 18,235) taken from a geographically diverse national research network of 72 primary care practices with 348 physicians in 27 states over the 1999–2002 time period. Brand‐specific advertising data were collected for local and network television at the monthly level for the nearest media markets to the practices. Results of duration models of delay to treatment suggest advertising does affect the length of time that patients and physicians wait to initiate therapy. This evidence suggests that these effects may be welfare enhancing in that advertising tends to encourage more rapid adoption among patients who are good clinical candidates for the therapy and leads to less rapid adoption among some patients who are poor clinical candidates. (JEL D12, I11)  相似文献   
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