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171.
Computer-aided classification of human chromosomes: a review 总被引:1,自引:0,他引:1
Computer-aided imaging systems are now widely used in cytogenetic laboratories to reduce the tedium and labour-intensiveness of traditional methods of chromosome analysis. Automatic chromosome classification is an essential component of such systems, and we review here the statistical techniques that have contributed towards it. Although completely error-free classification has not been, nor is ever likely to be, achieved, error rates have been reduced to levels that are acceptable for many routine purposes. Further reductions are likely to be achieved through advances in basic biology rather than in statistical methodology. Nevertheless, the subject remains of interest to those involved in statistical classification, because of its intrinsic challenges and because of the large body of existing results with which to compare new approaches. Also, the existence of very large databases of correctly-classified chromosomes provides a valuable resource for empirical investigations of the statistical properties of classifiers. 相似文献
172.
Jane L. Rankin David J. Lane Frederick X. Gibbons Meg Gerrard 《Journal of research on adolescence》2004,14(1):1-21
Adolescence is frequently described as a period of pervasive self‐consciousness, but an age‐related peak in adolescence is not consistently obtained, and higher self‐consciousness in girls is frequently obtained but not predicted by theoretical accounts. Two cohorts of adolescents (N=393), initially assessed at 13 and 15, completed public and private self‐consciousness measures 3 times in 4 years. They also reported social comparisons and social engagement. Public self‐consciousness decreased and private self‐consciousness increased in both cohorts, and girls scored higher on both measures, both in longitudinal and sibling replication samples (n=188). Public self‐consciousness appears to be a normative response to adolescent social challenges, with girls' higher levels largely attributable to their closer social engagement. Private self‐consciousness emerges as an individual difference in adolescence but is more likely to be salient and predictive of social behavior in adulthood. 相似文献
173.
Within the context of the creation of the internal market for health care, the paper examines the role of clinical directors, that is doctors who have retained their professional clinical positions whilst at the same time assumed roles as managers within increasingly well-defined corporate organizations providing health care. This represents considerable change from previous contexts in which doctors could always contract out of difficult managerial decisions. The role of clinical director is examined in terms of its own directorate and its involvement in contracting, co-operation and competition both within its own corporate organization and within the wider market place for health. Key issues are raised for the individuals and organization by these changes, they are discussed in terms of time, succession, managing colleagues, financial and human resources, market behaviour, support and terms of reference. These changes occasion wider discussion in terms of the challenge of coping with future demands for innovation, changes in the distribution of power within an emerging market for health care and the relationship among health care organizations, professionals and lay clients. 相似文献
174.
Jim Kay 《Journal of applied statistics》1994,21(1-2):209-224
Wavelets have aroused much interest and offer advantages in signal and image processing. Wavelets and also the wavelet transform are defined here. Their use as a vehicle for multi-resolution image analysis is discussed in the cases of one and two dimensions, and the decomposition-reconstruction algorithm is described. Some simple examples are presented to illustrate the ideas, and several applications are described. Some ideas for further reading are given. 相似文献
175.
Jim Crawley 《Australian and New Zealand Journal of Family Therapy》1980,1(3):139-147
The growing popularity of family therapy raises the question as to whether material on family therapy should be included in basic professional courses, or left as a more specialised area of study at the post-professional level. This paper describes how concepts and techniques of intervention from family therapy have been used in a unit on ‘Social Work with Couples and Families’ in an undergraduate degree course in Social Work. 相似文献
176.
Blace Arthur Nalavany Scott D. Ryan Jim Hinterlong 《Journal of child sexual abuse》2013,22(5):553-573
This study examined the severity of externalizing symptomology among adopted boys with preadoptive histories of child sexual abuse, physical abuse, neglect/abandonment, or no abuse. The study was based on data collected across a three-year period from parents who adopted children from Florida's child welfare system. The sample consisted of 1,136 adopted boys aged 6 to 18 years. In repeated cross-sectional multivariate analyses, the results revealed that adopted boys with preadoptive child sexual abuse were prone to significantly higher levels and clinically severe externalizing symptomotology as compared to adopted boys without such histories. The findings highlight the need for postadoption services and empirically validated interventions for families adopting boys with preadoptive child sexual abuse. 相似文献
177.
178.
Jim Ife 《Australian Social Work》2013,66(2):137-140
Despite many years of poverty eradication programs in numerous countries, 25% of the world's population continues to live in poverty. In the light of this global crisis, it is clear that anti-poverty strategies have not been as successful as they should have been. This paper argues that continuing poverty may be related in part to the fact that policies developed to alleviate the problem are mainly based on monetary definitions developed by ‘experts’, rather than by the poor themselves. Thus this paper will demonstrate that expert definitions invariably neglect the more qualitative aspects and experiences of poverty. In contrast, it is argued here that the poor are the ‘real’ poverty experts and their voices should be included in the definition of poverty and the formulation of solutions. While there is increasing recognition of this latter approach in developing nations, often taking a human needs perspective, this response is only in its infancy in Australia. After a discussion of the conceptualisation of human needs, this paper reports on a small pilot study that presents the voices of 10 disadvantaged men, identifying what poverty is for them in Melbourne 相似文献
179.
Jim Barber 《Australian Social Work》2013,66(2):79-81
Abstract The Publications Committee consists of six members. Each member of the Committee will be invited to provide a guest editorial, to introduce the Committee members to the readership. The editorial will have the rubic of Publications and the AASW'. The editorial will introduce the readership to the views and beliefs of individual Committee members in relation to publications; as such it will not necessarily reflect AASW publication policy. We begin with Dr. Jim Barber. OVER five years ago now, the Board of Directors commissioned me to conduct a review of Australian Social Workand to canvass the options for change at the November 1995 Board meeting in Canberra. I was told that there had been persistent complaints within some branches about the quality of the journal and its relevance to the membership at large. 相似文献
180.
Sydney Gibbons Taylor Trette-McLean Jennie L. Bingham Cheryl L. Garn Jonathan C. Cox 《Journal of American college health : J of ACH》2013,61(6):580-591
AbstractObjective: The purpose of the study was to examine student perspectives about college mental health including the primary mental health issues affecting students, common college student stressors, student awareness of campus mental health resources, and mental health topics students want more information about. Participants: Participants were 822 undergraduate and graduate students enrolled in a private university. The study was conducted during September 2016. Methods: As part of a public health course in program planning, undergraduate students surveyed their peers about their experience with mental health and mental health resources. Results: Stress was perceived as the largest mental health issue. Students most wanted more information about school/work/life balance followed by stress management. Electronic newsletters, social media, and on-campus seminars were the top strategies that students suggested as ways to reach them. Conclusions: The results provide student perspectives on mental health that may be useful in developing effective outreach efforts. 相似文献