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A meta‐analytic review of 33 studies and 41 independent samples was conducted of the effectiveness of community‐based mental health and behavioral programs for low‐income urban youth. Findings indicated positive effects, with an overall mean effect of 0.25 at post‐test. While this is comparable to previous meta‐analytic intervention research with more diverse samples, it stands in contrast to findings of the school‐based review (0.08 at post‐test) focused on this population. The current review found type of intervention to significantly moderate effects, with effects highest for programs that were environmentally based. In fact, effect sizes for programs that did not target the environment were not significant. Findings are discussed with an emphasis on environmental influences, including the differing contexts affecting school‐ versus community‐based interventions conducted with low‐income, urban youth.  相似文献   

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There is compelling evidence to suggest that acute adverse life events and certain stressors specific to motherhood increase the risk of maternity blues and diagnoses of postpartum depression. Other psychosocial factors that are likely to explain vulnerability to postpartum depression include previous history of depression and the stress-moderating effects of social support and coping responses. This article reviews the emerging empirical literature on stress and postpartum depression and presents a discussion of methodological issues relevant to advancing this area of research. Multivariate models that examine the interplay of these variables are now required to further our understanding of these syndromes.  相似文献   

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This article explores the psychological profile and treatment of young people who present clinically with features of borderline and avoidant personality disorder, along with vulnerable narcissistic traits. Self‐harm in these youngsters is often used to regulate internal storms. It is argued that the adolescent phase of development is a trigger point for collapse in these vulnerable young people. In therapy, these patients are difficult to connect with emotionally and treatment can be fraught with strong countertransference reactions. A case study is used to illustrate the use of mentalization‐based treatment for adolescents for such individuals.  相似文献   

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Cognitive‐behavioral therapy (CBT) using exposure with response prevention (ERP) is the treatment of choice for obsessive‐compulsive disorder (OCD); however, developmental modifications should be considered when treating young children. This article presents a case study illustrating family‐based CBT using ERP with a 7‐year‐old boy. The delivery of ERP for this case was guided by 3 main principles: (a) family involvement with a focus on reducing family accommodation, (b) understanding the functional relation between the client's obsessions and compulsions, and (c) creating conditions to facilitate habituation during exposure. Outcomes for this case indicate significant improvement in functioning and OCD symptoms. Results highlight the importance of family involvement and the applicability of using a function‐based habituation framework when delivering ERP to this unique population.  相似文献   

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Head‐to‐head poly(3‐hexylthiophene), HH‐P3HexTh, and a related polymer with a spacing non‐substituted thiophene unit were prepared by Ni‐promoted dehalogenative polycondensation. Both polymers formed colloidal solutions by addition of methanol to their chloroform solutions.  相似文献   

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Copolymerization of CO2 and epoxides is employed to generate functional polycarbonates. The introduction of reactive double bonds at a poly(propylene carbonate) (PPC) backbone is realized by the copolymerization of aliphatic alkene epoxides with propylene oxide (PO) and carbon dioxide (CO2). A series of copolymers with random structure and varying comonomer content (3–22%) with molecular weights in the range of 22 000–34 000 g mol?1 is synthesized and characterized with respect to their microstructure and thermal properties. The facile transformation of the double bonds is verified by a thiol‐ene reaction, resulting in quantitative conversion of the double bonds. Polycarbonate derivatives with multiple functionalities are prepared, providing suitable moieties for further grafting.

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Background

In 2008, WhatisKT wiki was launched as a collaborative platform for knowledge translation (KT) researchers and stakeholders to debate the use and definitions of KT-related terms. The wiki has definitions for over 110 terms from disciplines including health care, information technology, education, accounting, and business. WhatisKT wiki has over 115 registered users. Approximately 73,000 unique visitors have visited the wiki since 2008. Despite annual increases in visitors and regular maintenance of the wiki, no visitors have contributed content or started a discussion.

Objective

We surveyed wiki users to gain an understanding of the perceived value of the website, reasons for not engaging in the wiki, and suggestions to facilitate collaboration and improve the usability of the wiki.

Methods

We surveyed three cohorts: KT Canada members who were previously invited to join the wiki, registered wiki members, and unregistered visitors. The first two cohorts completed a Web-based survey that included the System Usability Scale (SUS) questionnaire to assess usability; additionally 3 participants were interviewed. Unregistered wiki visitors were surveyed with polls posted on the wiki. The study received ethics approval from the McMaster University Faculty of Health Sciences Research Ethics Board.

Results

Twenty-three participants completed the Web-based and SUS surveys; 15 participants indicated that they would collaborate on the wiki. The mean SUS score of 67 (95% CI 56-77) indicated that the wiki could be considered for design improvements. Study participants indicated that the wiki could be improved by email notification regarding new terms, better grouping of terms, user friendly interface, and training for users interested in editing content.

Conclusions

The findings from this survey will be used to enhance the design and content of WhatisKT wiki. Further feedback from participants will be used to make the wiki an ideal collaboration platform for KT researchers interested in terminology.  相似文献   

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Motivation is a key ingredient in the successful treatment of pediatric obsessive‐compulsive disorder (OCD). As a first‐line treatment, cognitive‐behavior therapy (CBT) requires extensive client engagement, including participating in exposures and doing homework tasks. A lack of motivation to comply with these tasks may seriously affect treatment outcome. This case study identifies factors interfering with motivation and illustrates motivational strategies to enhance compliance of a child with OCD. The patient was an 11‐year‐old boy with severe OCD and symptoms of oppositional defiant disorder (ODD). He had extensive OCD‐related avoidance behavior but denied the presence of symptoms or did not acknowledge them as a problem. In this article, we discuss the different techniques used to enhance motivation, which subsequently led to a favorable outcome.  相似文献   

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Salivary α‐amylase recently has been identified as a stress‐related biomarker for autonomic nervous system activity. This study addresses sample collection and handling considerations for field researchers. Saliva was collected by unstimulated passive drool from 14 adults and pooled. Incubation of pooled saliva at 22 or 37°C for 21 days did not diminish amylase activity. However, sodium azide added at concentrations ≤1.12 mg/ml to pooled saliva artificially inflated activity. After dosing cotton rolls within Salivette saliva collection devices with 0.25 to 1.5 ml of unpooled passive drool saliva from six additional adults, recovery of amylase activity was significantly below 100% at all volumes, with increased variance in recovery when the cotton was incompletely saturated (≤1.0 ml). Hence, collection by passive drool instead of cotton‐containing devices for amylase determinations is recommended, particularly whenever it is impossible to ensure full, uniform cotton saturation, and azide should be avoided as a preservative. Am. J. Hum. Biol., 2008. © 2008 Wiley‐Liss, Inc.  相似文献   

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Dextran and random dextran‐based copolymers containing different molar fractions f of charged units are studied in aqueous solution and in the pure state. The specific volumes of the solutions decrease linearly with increasing weight fraction of the polymer. Extrapolation to the pure state yields information on the hypothetical liquid polymers, exhibiting a pronounced minimum at f ≈ 0.1. A similar dependence is also observed for the pure solid polymers; however, the specific volumes at low f are considerably larger and at high f are slightly smaller. These differences are discussed in terms of the non‐equilibrium structures formed during sample preparation. The thermal expansivities of the solutions pass through a maximum at f ≈ 0.1. Light scattering shows that the thermodynamic quality of water has a minimum at f ≈ 0.1.

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