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51.
52.
Australian farms continue to suffer economic pressure which directly and indirectly produces stress among farm family members. This study uses qualitative and quantitative data to isolate factors which predict stress, Financial condition, perception of what is at stake, the combination of on-farm and off-farm obligations and the general frustrations of farm life are found to predict stress among both men and women. Gender relations and attachment to farm life emerge as stronger predictors for women, while youth is a stronger predictor for men. The study concludes that attempts to develop and preserve the family farm may be creating stressful situations which threaten the family relations upon which the farming system is based.  相似文献   
53.
This paper describes how 23 primarily upper-middle-class high school seniors anticipated identity changes as they prepared to leave home for college. The transition from high school to college is a period of “liminality” during which students are structurally in between old and new statuses. We discuss how students anticipated change, planned to affirm certain of their identities, imagined creating new identities, and contemplated discovering unanticipated identities. Such interpretive effort must be understood in the context of the ambivalence they felt about leaving home and achieving independence. The data also provoke discussion of how social class membership might be implicated in people's ability to control identity change as they move through the life course.  相似文献   
54.
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The article reports on a fourth study on the political participation of social workers based on a methodology developed by Gray and Collett van Rooyen (2000). Thus far studies have been conducted in South Africa, Australia and New Zealand. The present study examined the political activities of social workers in Hong Kong. It begins with a review of the politicisation of Hong Kong's social workers, tracing developments from the 1960s onwards. It then examines the literature on political participation in social work, particularly various typologies of political activity, in order to add to theory relating to this important aspect of social-work practice. Thereafter, it outlines the conceptual framework and methodology used in the study, the results of which provide the basis for the discussion of the political activities of social workers in Hong Kong. It ends with an in-depth discussion of the implications of the findings for the political role of social workers in Hong Kong's changing political context.  相似文献   
56.
The development of government guidance can seem a mysterious process to those outside government. This paper, which draws on the author's experience, is intended to give some insight into how guidance in two areas—child witnesses and children involved in prostitution—was developed within the existing legal framework. Since that time, the Sexual Offences Act 2003 has come into force in England and Wales and the Children Bill is currently before Parliament. The paper begins by setting out the key legislation, regulations and guidance that underpinned the child welfare and criminal justice systems as they related to child protection at the time the guidance was being developed. It then describes how the different guidance documents relate to each other and the implications for practice. The development of speci?c guidance is drawn upon to illustrate some of the tensions that had to be resolved during the drafting and the processes by which they were ?nalized for approval by the Government. A key area requiring careful consideration was the differences between the family and criminal justice systems. In the former, the welfare of the child is paramount when making decisions and in the latter, the court has a duty to ensure the defendant has a fair trial. Copyright © 2004 John Wiley & Sons, Ltd.  相似文献   
57.
We develop and test a model of nonprofit executive compensation based on theories of organizational science, economics, and agency theory. Our sample consisted of 114 directors of small business development centers in the United States. Consistent with our model, we find significant effects for human capital, organizational size, and organizational affiliation. We find tentative support for a significant pay‐for‐performance relationship. We find that when education, tenure, size, performance, and affiliation are held constant, female executives are compensated significantly less than male executives.  相似文献   
58.
A developmental approach to resistance   总被引:1,自引:1,他引:0  
Diagnosis, treatment and technical interventions are dependent on a theoretical interpretation of the behavior of a patient. The clinical material presented addresses an initial alternative assessment of resistances, not from a classical theoretical position of opposition to the analytic procedure, the defense of the neurosis and a safeguard against pain and danger, but behavior that expresses a developmental need and deficit in the patient that is expressed in the treatment and relationship to the therapist.  相似文献   
59.
An image that is mapped into a bit stream suitable for communication over or storage in a digital medium is said to have been compressed. Using tree-structured vector quantizers (TSVQs) is an approach to image compression in which clustering algorithms are combined with ideas from tree-structured classification to provide code books that can be searched quickly and simply. The overall goal is to optimize the quality of the compressed image subject to a constraint on the communication or storage capacity, i.e. on the allowed bit rate. General goals of image compression and vector quantization are summarized in this paper. There is discussion of methods for code book design, particularly the generalized Lloyd algorithm for clustering, and methods for splitting and pruning that have been extended from the design of classification trees to TSVQs. The resulting codes, called pruned TSVQs, are of variable rate, and yield lower distortion than fixed-rate, full-search vector quantizers for a given average bit rate. They have simple encoders and a natural successive approximation (progressive) property. Applications of pruned TSVQs are discussed, particularly compressing computerized tomography images. In this work, the key issue is not merely the subjective attractiveness of the compressed image but rather whether the diagnostic accuracy is adversely aflected by compression. In recent work, TSVQs have been combined with other types of image processing, including segmentation and enhancement. The relationship between vector quantizer performance and the size of the training sequence used to design the code and other asymptotic properties of the codes are discussed.  相似文献   
60.
The main topic of the paper is on-line filtering for non-Gaussian dynamic (state space) models by approximate computation of the first two posterior moments using efficient numerical integration. Based on approximating the prior of the state vector by a normal density, we prove that the posterior moments of the state vector are related to the posterior moments of the linear predictor in a simple way. For the linear predictor Gauss-Hermite integration is carried out with automatic reparametrization based on an approximate posterior mode filter. We illustrate how further topics in applied state space modelling, such as estimating hyperparameters, computing model likelihoods and predictive residuals, are managed by integration-based Kalman-filtering. The methodology derived in the paper is applied to on-line monitoring of ecological time series and filtering for small count data.  相似文献   
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