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831.
Ronald N. Taylor 《决策科学》1974,5(4):632-643
The distinction between ill-structured and well-structured decision problems is extended in this paper to include the degree of familiarity that a decision maker has with the initial state of the problem, its desired state, and appropriate transformations for resolving the problem. It is shown that problem ill-structuredness may result from inadequate information regarding any of these components and that the nature of problem ill-structuredness has important implications for problem formulation and solution. A decision tree is presented which represents strategies for either reformulating primary problems of each class of ill-structuredness to a more readily solved form, or solving the problem as initially formulated. 相似文献
832.
Kerry A. Lee PhD MSW Brenda Jones Harden PhD MSW Mishaska Jaramillo BS Taylor A. Norman BA Laura Jimenez Parra BA 《Child & Family Social Work》2023,28(1):37-52
A paucity of research has examined the individual and cumulative effects of conventional and expanded adverse childhood experiences (ACEs) on maternal functioning, especially among low-income Black mothers. Using self-report data from a subsample of Black mothers (N = 157) who participated in a larger study to evaluate the effectiveness of an urban public prekindergarten program in the mid-Atlantic region of the United States, we examined the prevalence of ACEs and the individual and cumulative effects of conventional (i.e., family trauma and dysfunction) and expanded (i.e., community stressors) ACEs on depression and health among low-income Black mothers. Findings indicated that Black mothers had more exposure to expanded than conventional ACEs. Hierarchical regression analyses revealed that experience of physical neglect was significantly associated with depression and physical abuse with compromised health, and perceived experience of racism was a predictor of depression and compromised health. More conventional and expanded ACEs were associated with clinical levels of depression and compromised health. Findings highlight the need for more research related to the impact of ACEs, especially expanded ACEs, on mental and behavioural health outcomes. Additionally, our findings indicate the need for more trauma-informed care to reduce and address the impact of individual and community-level adversities on low-income Black mothers. 相似文献
833.
Olivia Octoman Fiona Arney Jenna Meiksans Rosemaria Flaherty Alwin Chong Fiona Ward Cathy Taylor 《Child Abuse Review》2023,32(1):e2808
Repeated reporting to child protection is common. One approach to early intervention is for jurisdictions to receive and respond to child protection concerns raised before children are born. Despite this, little research has comprehensively examined subsequent child protection contact for those first reported prenatally. This study aimed to examine the subsequent child protection contact for up to a two-year period for a cohort of children who were reported about prebirth. Child protection administrative data were extracted for 640 children reported for a concern about an unborn child in a single jurisdiction during 2014. Data about child protection contacts included reports, investigations, substantiations and out-of-home placements for children reported prenatally. Of the 640 children, 79% reported about prenatally also had contact with child protection between birth and age two. From birth and up to age two, children reported prenatally had between zero and 21 reports. Twenty-two per cent of the children reported prenatally were removed from their birth parents and placed in out-of-home care prior to age two. These findings highlight the importance of intervening and supporting families prior to and during pregnancy to reduce harm to children and reduce the need for contact with child protection. 相似文献
834.
Alicia A. Taylor Joyce S. Tsuji Margaret E. McArdle William J. Adams William L. Goodfellow Jr. 《Risk analysis》2023,43(2):211-218
The U.S. Environmental Protection Agency's (EPA) Integrated Risk Information System (IRIS) database, the authoritative source of U.S. risk assessment toxicity factors, currently lacks an oral reference dose (RfD) for copper. In the absence of such a value, various health-based reference values for copper are available for use in risk assessment. We summarize the scientific bases and differences in assumptions among key reference values for ingested copper to guide selection of appropriate values for risk assessment. A comprehensive review of the scientific literature best supports the oral RfD of 0.04 mg/kg body weight/day derived by EPA from their Drinking Water Action Level. This value is based on acute gastrointestinal effects but is further supported by broader analysis of copper deficiency and toxicity. 相似文献
835.
Mothers who are at risk of losing custody of their children represent a vulnerable population whose voices are seldom heard. Exploring their perspectives of parenting, their child and the relationship with their child—their ‘parenting representations’—can improve our understanding of their struggles and inform interventions. Research in this area so far has been predominantly quantitative, meaning valuable information about subjective experiences is often lost. The present study sought to address this gap by thematically analysing interviews with eight mothers with under-3-year-olds on the edge of Local Authority care, completed at the beginning of a therapeutic intervention. Results are reported around five themes: ‘Idealistic portrayal of the child and the relationship’, ‘Struggling as a parent’, ‘Shadows of the past’, ‘The child and motherhood as comfort’ and ‘Anxiety about loss and fighting for the child’. The parenting struggles of mothers in this population are complex and multi-faceted, fuelled by unresolved relational trauma, fears of further pain, adversity and difficulties in accessing and trusting support. Successful interventions are likely to require comprehensive, long-term approaches that holistically address mothers' unmet physical and emotional needs and begin with building relational trust. 相似文献
836.
Most prior studies that examine in-process inventory requirements associated with a manufacturing facility employ an optimizing algorithm; this article proposes a heuristic procedure for determining such requirements. A procedure is given for determining “active” and “banked” work-in-process requirements. The two are combined to give total in-process requirements. A key factor presented in the paper is the relationship between in-process inventory requirements and the “balancing” of a production facility. Most prior researchers examine these problems independently. It will be shown that both problems can be resolved concurrently. The concepts are applicable to both an existing as well as a new manufacturing facility. 相似文献