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691.
Krystal D. Mize Melannie Pineda Alexis K. Blau Kathryn Marsh Nancy Aaron Jones 《Infancy》2014,19(3):338-348
Recent research has demonstrated a relationship between infants' tonic electroencephalogram (EEG) patterns and approach‐style jealousy responses (Mize & Jones, 2012 ). Although it has been found that adults exhibit approach‐style neural activity during jealousy paradigms (Harmon‐Jones, Peterson, and Harris, 2009 ), parallel research on neural activity during a jealousy paradigm in infants is lacking from the literature base. The purpose of the current research is to examine EEG patterns of 35 infants (Mean age = 8.92 months old) in a social‐rival paradigm designed to elicit jealousy responses. Consistent with past research, infants demonstrated more approach‐style, jealousy‐related behaviors when their mothers attended to a social‐rival than to a nonsocial rival. Additionally, infants demonstrated approach‐style anterior EEG activity during the social‐rival condition, a pattern that is associated with jealousy. The current findings suggest that the physiological underpinnings for the emotions that motivate the protection of important dyadic relationships are in place early in ontogeny. Therefore, jealousy‐type behaviors and physiological responses begin to be observable as early as 9‐months‐old when maternal attention is lost to a social‐rival. 相似文献
692.
Nancy Lea Hyer 《决策科学》1982,13(4):681-701
American industry typically uses material requirements planning (MRP) for manufacturing control. This paper presents production planning and control procedures based on group technology (GT), which is used in British manufacturing. A translation between these ideas and the American approach is made, and it is suggested that a combination of MRP and GT is viable. The problems that arise, especially in the areas of lot-sizing and sequencing/scheduling, and their possible solutions are discussed. Since increased adoption of GT is expected within the next decade, an intensified research effort is warranted in these and other areas so that existing MRP systems can be modified or extended to handle cellular manufacturing control problems. Subject Areas: Material Requirements Planning and Production/Operations Management. 相似文献
693.
Will J. Peach John W. Mallord Nancy Ockendon Chris J. Orsman William G. Haines 《Urban Ecosystems》2018,21(6):1053-1065
Little is known about the environmental factors that limit the demography and abundance of wild vertebrates in highly modified urban environments. The House Sparrow Passer domesticus is a globally widespread species whose urban populations have recently undergone substantial declines particularly in Europe. The environmental drivers of these declines remain unknown. In a previous study we showed that invertebrate availability during the breeding season limited reproductive success but not population size in a suburban sparrow population. In this study we test experimentally whether year-round food availability limits demography and population size. Supplementary feeding involved the provision of invertebrate prey (during the breeding season) plus unlimited high-energy seed (year-round) at 33 sparrow colonies spread across suburban London over two successive calendar years. Thirty-three unfed colonies served as controls. Supplementary feeding increased fledgling abundance, but had no impact on overwinter survival or population size. We conclude that this depleted suburban sparrow population is not limited by food availability, and conservation efforts based primarily on food provision are unlikely to succeed. We also tested whether cross-colony variation in sparrow abundance was correlated with a set of potential environmental stressors including measures of predator abundance and pollution. Sparrows were more abundant, or showed more positive temporal changes in abundance, at localities containing large areas of seed-rich habitat and low levels of nitrogen dioxide air pollution. Further research is merited into the potential impacts of air pollution on the fitness of urban birds. 相似文献
694.
Eunkyung Yoon Nancy P. Kropf 《Journal of Ethnic & Cultural Diversity in Social Work》2018,27(4):310-327
ABSTRACTChanging filial piety expectations have been examined from the viewpoint of younger generations. However, research on older adults’ perspective of this cultural phenomenon is virtually absent from the empirical literature. In an effort to address the changing family life circumstances of Korean and Korean-American families, this study explores older adults’ filial expectations from their own children and correlated factors associated with the expectation. The cross-sectional survey study with 449 older adults found that the majority of respondents still believe that adult children should assume responsibility for the care of their parents. Several factors such as age, education, income, living arrangements, self-rated health, year of immigration, and social support were significantly correlated with filial expectations among older Korean-Americans. Only satisfaction with social support received from family and friends was significantly related to older Koreans’ expectations. Implications for social work practice are discussed and further research directions are suggested. 相似文献
695.
Exploring the friendships of disabled youth in forthcoming doctoral research raised many unsettling questions. Members of academic and disability communities thoughtfully asked how the researcher could legitimately understand, interpret and represent the experiences of disabled youth. The initial impulse was to rely on nearly two decades of clinical practice with children and youth with disabilities; however, the futility of this strategy quickly surfaced. Uncertainty about how to proceed arose. A colleague and mentor suggested that a careful reading of Sandra Harding, Donna Haraway and Mats Alvesson and Kaj Sköldberg might provide the conceptual tools required to address these concerns. This paper presents a student’s stumbling, hesitant and sometimes ‘harried’ attempts to grapple with their unfamiliar arguments while simultaneously exploring tentative connections with disability studies. The evolutionary cycle of queries, responses and reflections from a series of e‐mails demonstrate a transition in thinking about research and representation. 相似文献
696.
Julie Devaney Nancy Barry Fran Odette Linda Muraca Sharmini Fernando 《Disability & Society》2009,24(6):739-751
This article is the first phase in the Gateways to Cancer Screening project – a user‐driven participatory research project that examines barriers and facilitators to preventive cancer screening for women with physical mobility disabilities. Through a systematic review of the existing literature on this subject we discover that, despite the fact that women with disabilities have the same biological risk of developing cancer as non‐disabled women, women with mobility impairments face systemic, architectural, procedural and attitudinal barriers to preventive cancer screening. Our goals are to identify barriers and facilitators to screening, identify the gaps in the existing literature related to issues of diversity and ultimately set the stage for disabled women to effect change through the telling of their own stories. 相似文献
697.
Adrian J. Blow Nancy C. Morrison Karen Tamaren Kristin Wright Melanie Schaafsma Alison Nadaud 《Journal of marital and family therapy》2009,35(3):350-368
The article describes a research study that explored the process of how change occurred for one distressed couple and a specific therapist in a naturalistic setting. Quantitative and qualitative data were collected on the couple at multiple points in the therapy. A research team comprised of five members met regularly to analyze the data and collectively they arrived at a theory of change for the couple posttherapy. Conclusions are made related to how change occurred for the couple with an emphasis on the role of extratherapeutic events, client motivational factors, the therapeutic alliance, hope and expectancy factors, therapist factors, specific techniques and interventions, and other surprise factors that contributed to change. 相似文献
698.
Child care and employment turnover 总被引:1,自引:1,他引:0
This paper explores how the responsibilityof caring for children affects employment stability by studying the relationship betweenthe characteristics and stability of substitute caregivers and the risk of leaving of job. Thedata come from the 1990 National Child Care Survey (NCCS), a nationally representative surveyof households with children under age 13 conducted in late 1989 and early 1990, and AProfile of Child Care Settings (PCS), a nationally representative survey of center-based programsand licensed family day care homes in the U.S., conducted at the same time and in the same 144counties. The results show that the availability of care affects the job stability of all employedmothers. Other effects differ by maternal wage. The cost of care affects the employment exits ofmoderate-wage mothers (who earn $6 to $8 per hour), the stability of care affects the employmentexits of moderate- and high-wage mothers, and the flexibility of care affects the employmentexits of low-wage mothers. These results are discussed in the context of current public policies. 相似文献
699.
In the decades after the second world war, California's highly educated workforce was a central part of the booming California
economy, especially in the 1950s and 1960s when large numbers of migrants arrived from the Middle West and the East Coast.
Now in the last decade of the twentieth century there is evidence that California's educational advantage may be shifting.
The overall levels of education in California's workforce are decreasing relatively, with real implications for the future
human capital of California. The data show lower education levels in California and a reversal of previous patterns when California's
workforce was more educated than the nation as a whole. The implications for the future of California as a cutting edge economy
are less clear, but it is possible that increasingly, California will be competing with other states for the fast-growing
and well-paying jobs in the high technology sector. The future of the California workforce will be closely bound up with the
education of the immigrant stock already in California and with the continuing flows from Mexico and Central America. 相似文献
700.
Whitney Polk Nancy E. Hill Maggi Price Belle Liang John Perella Mandy Savitz‐Romer 《Journal of research on adolescence》2020,30(Z1):209-225
School context serves as a testing ground for exploring social relationships and satisfying needs for connection and affirmation, but often includes feelings of rejection. With a diverse high school sample (n = 645; 55% female; 61% White, 18% African American, 10% Latino, 10% Asian American, 1% Multiracial), patterns of experiences with marginalization and connection were identified and their associations with achievement and mental health examined. Using two‐step cluster analysis, three clusters were identified: above the fray, exposed and protected, and targeted and unsupported. Ethnic/racial background was not related to cluster membership. Except for gender and well‐being, associations between cluster membership and outcomes were similar across demographic background. The above the fray and the exposed and protected clusters were associated with better outcomes. 相似文献