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701.
702.
Issues in Ecological Risk Assessment: The CRAM Perspective   总被引:1,自引:0,他引:1  
In 1989, a Committee on Risk Assessment Methodology (CRAM) was convened by the National Research Council (NRC) to identify and investigate important scientific issues in risk assessment. One of the first issues considered by the committee was the development of a conceptual framework for ecological risk assessment, defined as "the characterization of the adverse ecological effects of environmental exposures to hazards imposed by human activities." Adverse ecological effects include all biological and nonbiological environmental changes that society perceives as undesirable. The committee's opinion was that a general framework is needed to define the relationship of ecological risk assessment to environmental management and to facilitate the development of uniform technical guidelines. The framework for human health risk assessment proposed by the NRC in 1983 was adopted as a starting point for discussion. CRAM concluded that, although ecological risk assessment and human health risk assessment differ substantially in terms of scientific disciplines and technical problems, the underlying decision process is the same for both. Therefore, CRAM recommended that the 1983 risk assessment framework be modified to accommodate both human health and ecological risk assessment. CRAM defined an integrated health/ ecological risk assessment framework consisting of the four components: Hazard Identification, Exposure Assessment, Exposure-Response Assessment, and Risk Characterization. CRAM further provided recommendations on the scope of issues to be addressed in ecological risk assessment, critical research needs, and mechanisms for providing more detailed guidance on the scientific content of ecological risk assessments.  相似文献   
703.
The effects of Duchenne Muscular Dystrophy on the families of 70 children with the condition were studied in an Epidemiological Survey conducted in Victoria between July, 1970 and January, 1971. The social components of the study are reported in this paper.  相似文献   
704.
Abstract

Objective: This study explored associations between positive alcohol expectancies, and demographics, as well as academic status and binge drinking among underage college students. Participants: A sample of 1,553 underage college students at 3 public universities and 1 college in the Southeast who completed the Core Alcohol and Drug Survey in the Spring 2013 semester. Methods: A series of bivariate analyses and logistic regression models were used to examine associations between demographic and academic status variables as well as positive alcohol expectancies with self-reported binge drinking. Positive alcohol expectancies were examined in multivariable models via 2 factors derived from principal component analyses. Results: Students who endorsed higher agreement of these 2 emergent factors (sociability, sexuality) were more likely to report an occurrence of binge drinking in the past 2 weeks. Conclusions: Study results document associations between positive alcohol expectancies and binge drinking among underage students; implications for prevention and treatment are discussed.  相似文献   
705.
Population trends suggest that the next 20 years will witness a dramatic increase in the adult population aged 65 and older. Projected increases in the elderly population are expected to significantly increase the stress on family and professional caretakers. Stress, in the context of caregiving relationships, is a risk factor associated with increased prevalence of elder abuse in familial and institutional settings. As increasing numbers of older adults are moved from family caregiving to nursing home care settings, it becomes important to identify the pattern of elder abuse risk factors in nursing home facilities. An ecological model is proposed for better understanding the risk factors associated with elder abuse in nursing homes and the complex interaction of individual/person characteristics and contextual factors in institutional elder abuse. An ecological perspective to institutional elder abuse provides a framework for guiding and informing future research on the risk factors of nursing home abuse and, in turn, for the development of effective interventions and relevant social policies.  相似文献   
706.
707.
One hundred, thirty-four undergraduate students participated in afield experiment designed to examine the effects of extended, prosocial communication with homeless persons, upon attitudes toward the homeless problem, of behavioral intentions towards the homeless, and of causal attributions about homelessness. It was expected that prosocial interaction with the homeless would produce shifts in attitudes and behavioral intentions toward the homeless and homelessness and result in greater attributions of external causes to explain homelessness. Nineteen experimental participants worked 15 hours at a local homeless shelter. Their responses to a posttestquestionnaire that measured a range of attitudinal and behavioral orientations toward the homeless were compared with control participants who did not work at the shelter. Subsequent analyses furnished strong evidence of positive changes in attitudes and intentions toward homelessness among the shelter workers. These participants evaluated homeless people as less blameworthy and more socially attractive than did control participants; moreover, shelter workers indicated more personal responsibility and behavioral commitment to helping the homeless than control participants. They also perceived the homeless problem to be more serious and were more likely to attribute homelessness to bad luck than control participants. However, the two groups were equally likely to attribute homelessness to various external causes such as the economy, housing costs, and governmental policies. The results are interpreted as having policy implications for volunteer service.  相似文献   
708.
The purpose of this study was to examine the three most common types of caregivers in the child welfare system (birth parents, relative caregivers, and foster parents), an active child welfare case, caregivers' endorsement of barriers to mental health services and mental health service use by caregivers for the children under their care. The sample consisted of 430 dyads (caregivers and their children). Results indicate that an active child welfare case, provider characteristics, and accessibility of services predicted mental health service use for children. Implications for the child welfare and mental health systems are discussed.  相似文献   
709.
Family issues are common among returned post-9/11 Veterans. Traumatic brain injury (TBI), post-traumatic stress disorder (PTSD), and depression are each independently related to divorce whereas community ties and social support are protective factors for the family during reintegration. Evidence from elders on the benefits of one intervention, community volunteering, may indicate “spillover effects” of these benefits into the family. Few measures exist to assess the impact of military Veteran volunteering on the family. The authors report (1) an adaption of a benefits measure from elders to Veterans, (2) its preliminary reliability and validity, and (3) differences among subgroups. Reintegrating post-9/11 Veterans (N = 346) who completed a 6-month, stipended volunteer program were surveyed. Perceived impact of volunteering on the family was assessed after completion of the program using an 11-item self-report measure. Rank-based nonparametric tests were used to detect significant differences among subgroups. Preliminary findings support the scale’s adaptation to Veterans, internal consistency, and construct validity. At least one perceived family impact indicator differed significantly (p < .05) between subgroups based on demographic and psychological factors. Veterans in this civic service program perceived that their volunteering may have affected their families.  相似文献   
710.
ABSTRACT

The development of a university-based cybercounseling certificate program through the continuing education department of a graduate faculty of social work is described. This web-based program consists of two levels: introductory and advanced, and offers experienced face-to-face counselors training in an asynchronous, e-mail form of cybercounseling. Ethical issues such as cross-jurisdictional concerns, client appropriateness, and counselor insurance are discussed. A system developed to provide online e-mail security through web-based access and encryption is highlighted. Several techniques for e-mail counseling such as presence, and spacing and pacing are discussed and illustrated. Demographics of learners and feedback from graduates are presented and lessons learned are discussed.  相似文献   
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