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Mike Murphy 《Revue europeenne de demographie》1996,12(4):363-381
Event history models for aggregate units such as households are complicated by the fact that such entities do not have a well-defined identity through time. The difficulties of applying conventional transition-based models to household change are discussed. More generally, what constitutes time and change are also considered. It is argued that many changes occurring within households such as leaving home are better-considered as fuzzy than crisp phenomena. An alternative perspective based on household change considered as an evolving network is proposed. The implications for sample designs which are designed to track explicithousehold dynamics (such as the Panel Study on Income Dynamics) are discussed. The ways in which particular forms of analysis come to dominate the scientific literature, including those for analysing household change is discussed in relation to non-linear dynamic models. Finally, it is argued that there would be considerable benefits if insights available from the physical, mathematical and biological sciences were to be more widely incorporated within technical demography.Les modèles d'analyse biographique d'unités agrégées, telles que les ménages, sont complexes, car ces entités ne peuvent être définies avec précision au cours du temps. Nous discutons ici les difficultés d'appliquer les modèles habituels basés sur des transitions, aux changements connus par les ménages. Plus généralement, nous analysons ce qui constitue «le temps» et le «changement». Nous montrons ainsi que de nombreux changements connus par les ménages, tels que la décohabitation, sont mieux saisis comme des évévements «flous» plutôt que comme des événements ponctuels. Nous proposons dès lors une autre perspective, basée sur les changements survenus dans des réseaux en évolution. Nous en discutons les implications sur les méthodes d'échantillonnage destinées à tracer l'évolution explicite des ménages (telles que l'étude par panel sur l'évolution des revenus). Les façons selon lesquelles certaines formes d'analyse en viennent à avoir une position dominante dans la littérature scientifique, y compris celles qui permettent l'analyse des changements dans les ménages, sont discutées en liaison avec les modèles dynamiques non-linéaires. Finalement, nous montrons qu'il y a des avantages importants à ce que des approches suivies dans les sciences physiques, mathématiques et biologiques, soient plus largement introduites dans les techniques d'analyse démographique. 相似文献
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Mike Partner 《Social Work Education》2013,32(2):20-21
This article reviews the experience of a two year post-graduate CQSW course in organising the first year placement as a cluster in which six or seven students are placed in different social work agencies but in the same geographical area. It outlines the advantages of this model of placement planning and practice teaching for students, practice teachers, student units, and college tutors. Particular attention is drawn to the support and stability offered to students and to the opportunity to demonstrate links between theory and practice in the teaching of community social work. It is suggested that this model may provide one way in which student units might develop as training resources for the local area, and help the development of closer collaboration between agencies and colleges. 相似文献
126.
Matthew A. Cole Robert J. R. Elliott Joanne K. Lindley 《Journal of Risk and Uncertainty》2009,39(2):161-180
Within a compensating wage differential framework we investigate whether there is a wage premium for working in a pollution
intensive industry. Our results for the economy as a whole suggest a small wage premium of approximately one quarter of one
percent associated with the risk of working in a dirty job. This premium rises to over fifteen percent for those individuals
who work in one of the five dirtiest industries. We also find evidence of a fatal risk wage premium, providing estimates of
the value of a statistical life of between £12 million and £19 million (2000 prices). 相似文献
127.
Anne B. Cole M.S.W. 《Smith College studies in social work》2013,83(1):313-324
Abstract This paper explores the nature of the treatment frame with a client in extreme circumstances. A move is made, through frame alterations, from a more “pure” technical mode to a more humanistic one. The costs and gains of these frame modifications are evaluated and the therapist's internal experience of the process presented. The paper concludes that the traditional frame is inadequate in therapy with a dying client. Blending the customary frame with a more flexible one more fully meets the needs of the client who is in extremis, enhancing treatment and the treatment alliance. 相似文献
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Adinda Dujardin Rudi De Raedt Jessica L. Borelli Caroline Braet Pieter Vos Mike Rinck Guy Bosmans 《Social Development》2019,28(2):364-382
In this study we investigated the effects of seeking versus avoiding proximity to mother on children’s emotional recovery from a stressor. Sixty children 9–12 years underwent a moodinduction procedure and were randomly assigned to seek proximity from or avoid an image of their mothers. The effect of this manipulation on children’s self‐reported negative emotions, skin conductance and heart rate variability (respiratory sinus arhythmia) was assessed. Higher levels of attachment anxiety were linked to more self‐reported sadness when children had to avoid mother, but no evidence for such an effect was found on a physiological level. For avoidant attachment, a similar pattern of results emerged, but both for self‐reported sadness and skin conductance. 相似文献
130.
Gary D. Clewley Kate E. Plummer Robert A. Robinson Clare H. Simm Mike P. Toms 《Urban Ecosystems》2016,19(2):535-546
The proliferation of artificial lighting at night is one of the key anthropogenic changes associated with urbanised areas as well as some non-urban areas. Disruption to natural light/dark regimes can have considerable effects on the timing of different behaviours of birds, particularly during the breeding season. However, the effect of artificial lights on the timing of behaviours during winter has received relatively little attention, despite the fact that time partitioning of foraging can have implications for avian winter survival. In this study, we assess at a landscape scale during winter, whether birds arrive at feeding stations earlier in areas with increased levels of artificial lighting using data from a citizen science project. Arrival times of the ten most commonly recorded species were associated with a combination of the density of artificial lights, temperature, rainfall and urban land cover. We found no evidence that birds advance the onset of foraging in gardens with more artificial lights nearby; contrary to our prediction, birds generally arrived later into these areas. This is possibly a response to differences in food availability or predation risk in areas with more artificial lights. We conclude that artificial light at night may not be as important for driving the timing of foraging behaviour in winter as previously thought, but it remains to be seen whether this represents a missed opportunity to extend the foraging period or an adaptive response. 相似文献