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181.
182.
Elizabeth K. Anthony Bryn King Michael J. Austin 《Children and youth services review》2011,33(10):1999-2009
Child poverty in the United States persists despite a range of social services designed to reduce poverty rates and improve the economic self-sufficiency of families. The economic downturns resulting in job losses and the housing crisis have converged to create a new group of families who were managing to remain out of poverty prior to the recession but are now slipping into poverty, putting additional strain on services. In light of these pressing issues, this article synthesizes the literature examining child poverty to take a long-range view of the relationship between economic strain, system involvement, and impacts on children and the systems attempting to serve these children. The effectiveness of various policy and program efforts aimed at reducing child poverty rates and/or ameliorating the negative effects of living in poverty is reviewed. The article concludes by suggesting a major shift in focus from reducing child poverty as a singular goal to a comprehensive approach to promoting child and family well-being. 相似文献
183.
Beyond products: new strategic imperatives for developing competencies in dynamic environments 总被引:1,自引:0,他引:1
Sally W. Fowler Adelaide Wilcox King Sarah J. Marsh Bart Victor 《Journal of Engineering and Technology Management》2000,17(3-4)
Strategy research has often taken a product-centered perspective. When firms compete in environments characterized by accelerating product life cycles, mass customization, and technological discontinuities, a product-centered perspective on strategy may help explain a firm’s current competitive advantage. However, this perspective adds little guidance in making strategies that create competitive advantage in the future. In this paper, we present a perspective in which dynamic environments require firms to focus on (1) building market-driven, technological, and integration competencies, not a stream of product improvements, and (2) decoupling these competencies from current products in order to create and exploit new opportunities. We discuss the perspective of products as a temporary integration of market and technology trajectories. Research propositions are presented and future implications are discussed. 相似文献
184.
Johnson Lea R. Johnson Michelle L. Aronson Myla F. J. Campbell Lindsay K. Carr Megan E. Clarke Mysha D’Amico Vincent Darling Lindsay Erker Tedward Fahey Robert T. King Kristen L. Lautar Katherine Locke Dexter H. Morzillo Anita T. Pincetl Stephanie Rhodes Luke Schmit John Paul Scott Lydia Sonti Nancy F. 《Urban Ecosystems》2021,24(4):633-648
Urban Ecosystems - We introduce a conceptual model of the urban forest patch as a complex social-ecological system, incorporating cross-scale interactions. We developed this model through an... 相似文献
185.
Alexis Brieant Kristin M. Peviani Jacob E. Lee Brooks King‐Casas Jungmeen Kim‐Spoon 《Journal of research on adolescence》2021,31(1):71-84
This study examined whether cognitive control mediated the association between socioeconomic status (SES; composite of income‐to‐needs ratio and parent education) and changes in risk‐taking behaviors. The sample included 167 dyads of adolescents (53% male; Mage = 14.07 years at Time 1) and their parents, assessed annually across 4 years. Parents reported socioeconomic variables at Time 1. Adolescents reported risk‐taking behaviors at Times 1 and 4, and completed a functional magnetic resonance imaging cognitive control task at Times 2 and 3. Lower SES was associated with lower behavioral (but not neural) cognitive control, which was associated with increases in risk‐taking behaviors. The findings suggest that elevated socioeconomic risk may compromise cognitive control which can cascade into maladaptive behaviors in adolescence. 相似文献
186.
It is estimated that approximately 1,000,000 elderly men care for spouses with Alzheimer's disease or other forms of cognitive impairment, yet we have only a limited understanding of their work, and central questions arise. What do men caregivers do, and what meanings do they ascribe to their work? What are their distinctive strengths and vulnerabilities, and what can we learn about men and caregiving from their stories? This qualitative study was based on in-depth, open-ended interviews with 14 elderly men who are primary caregivers to wives with dementia. All interviews were taped, transcribed, and manually coded. The resulting information then underwent analysis from which three major themes emerged: feelings of isolation and invisibility of their care work, a style of caregiving that jointly utilizes management and nurturing, and feelings of commitment, responsibility, and devotion. 相似文献
187.
The RESidual RADioactivity (RESRAD) computer code has been used for years to calculate carcinogenic risk and radiological dose from exposure to radionuclides. The basic ingestion, inhalation, and direct gamma intake equations used by RESRAD, Risk Assessment Guidance for Superfund (RAGS), and the Soil Screening Guidance for Radionuclides (SSG) are similar and can produce similar results, but there are some notable differences. Of particular interest is the fact that RESRAD incorporates sophisticated environmental transport models. Associated environmental parameters allow risk assessors to consider, among other variables, the size (i.e., surface area) of the contaminated zone, a variable not typically addressed quantitatively under the RAGS/SSG paradigm. Considering the similarities between basic RESRAD, RAGS, and SSG intake equations and given the broad acceptance of RESRAD, it stands to reason that RESRAD-derived area factors may be used to supplement RAGS/SSG human health risk calculations. This would allow risk assessors to retrofit existing results or otherwise modify standard RAGS/SSG equations for use in site closeout planning under the Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM), given a key component of the MARSSIM method is the consideration of small areas of elevated activity or "hot spots" through the use of area factors. 相似文献
188.
Though built with increasingly precise microfoundations, modern optimizing sticky price models have displayed a chronic inability to generate large and persistent real responses to monetary shocks, as recently stressed by Chari, Kehoe, and McGrattan (2000). We trace this lack of persistence to a standard view of the cyclical behavior of real marginal cost built into current sticky price macro models. Using a fully articulated general equilibrium model, we develop an alternative perspective on real marginal cost that leads to substantial persistence. Based on an important role for materials input, variable capacity utilization, and labor adjustment on the extensive margin, this alternative view also makes the sticky price model display volatility and comovement of factor inputs and factor prices more closely in line with conventional wisdom about business cycles and various empirical studies of the dynamic effects of monetary shocks. (JEL: E31 E32) 相似文献
189.
Mary L. Balthazar Lula King 《Journal of African American Studies (formerly Journal of African American Men)》2001,6(1):31-42
This article examines the loss of the protective effects of marital and non-marital relationships of incarcerated African American men, and the effects on their mental well-being. The unintended consequences of policies on African American men, their families and communities are discussed. The role of social work is evaluated, and research needs are identified. 相似文献
190.
AbstractBalakrishnan et al. proposed a two-piece skew logistic distribution by making use of the cumulative distribution function (CDF) of half distributions as the building block, to give rise to an asymmetric family of two-piece distributions, through the inclusion of a single shape parameter. This paper proposes the construction of asymmetric families of two-piece distributions by making use of quantile functions of symmetric distributions as building blocks. This proposition will enable the derivation of a general formula for the L-moments of two-piece distributions. Examples will be presented, where the logistic, normal, Student’s t(2) and hyperbolic secant distributions are considered. 相似文献