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51.
Dr. J. Wesley Burgess 《Journal of Nonverbal Behavior》1983,7(3):158-169
This study examined age differences in the pattern of proxemic behavior observed in casual groups frequenting public environments. Observations were made in the corridors of large shopping malls and along sidewalks of small towns. The relative positions of all walking subjects were inconspicuously recorded in photographs, and interpersonal distances were measured by projecting slides on a calibrated grid. Distances to first, second, and third nearest companions and first, second, and third nearest strangers were computed for subjects in six age classes: preschool children, grade school children, teenagers, young adults, middle adults, and senior adults. All classes showed significant age differences in the distances maintained to companions (p = .00001), but only senior adults differed in their spacing toward strangers, by maintaining significantly closer distances than the other age groups (p < .01). Tests of spatial patterns showed significant aggregations between first, second, and third nearest companions, and essentially random spacing toward first nearest strangers in all age groups. Senior adults showed a significant tendency to aggregate with their second and third nearest surrounding strangers. These results are discussed in the light of oer research and in the context of the ecology and development of proxemic behavior.Funding was provided by a National Science Foundation grant, BNS 79-06843, to J.W. Burgess. Additional fundint was provided by a grant from the Consumer Research Center, University of California (Robert Sommer, Director), and by Sigma Xi grants to J.W. Burgess. The author thanks Ms. Deanna Johnson for expert help in behavioral observation and decoding. 相似文献
52.
Age cohort and racial/ethnic differences in alcohol-use patterns and alcohol-related problems were examined in a diverse sample of self-identified lesbians using data from the Chicago Health and Life Experiences of Women Study (CHLEW). Significant differences in lifetime drinking patterns and lifetime alcohol-related problems were found across three generational cohorts; few differences were found across racial/ethnic groups. Findings are discussed in relation to previous research on lesbian alcohol use. 相似文献
53.
This paper reviews the professional literature with respect to the social work profession's involvement in end-of-life care. The search process was conducted by entering key words in various combinations to electronic databases. Eligible articles were required to address one of the following: roles and activities of social workers in providing end-of-life care; core principles valued by social workers in the provision of end-of-life care; and barriers to provision of effective end-of-life care. The literature from 1990 through July 2004 was searched most rigorously. Based on this review, suggestions for where the profession of social work should focus its energies are offered. These key areas include focusing on generating empirically-based knowledge for practice and policy analysis and developing a system of social work education that addresses the unique knowledge and skills needed to participate in end-of-life practice as competent and informed professional practitioners. Current initiatives with regard to critical areas are summarized. 相似文献
54.
The potential to foster successfully starts with developing and supporting competency in 12 domains: providing a safe and secure environment, providing a nurturing environment, promoting educational attainment and success, meeting physical and mental healthcare needs, promoting social and emotional development, supporting diversity and children's cultural needs, supporting permanency planning, managing ambiguity and loss for the foster child and family, growing as a foster parent, managing the demands of fostering on personal and familial well-being, supporting relationships between children and their families, and working as a team member. This article describes each domain and reviews relevant research to help guide the assessment of practicing and future foster parents. 相似文献
55.
We study the incentives that drive an online firm to make various types of innovations in a competitive environment. We develop and use a simplified price competition model between two retailers, one online and one offline. A given fraction of consumers, called the Internet penetration, comparison shop online, independent of their customer type, thereby creating two markets for the offline retailer, a captive market and a competitive market. The online product has the steeper of the two linear utility functions, which means that the customers who buy online in our model are high end. We focus on the competitive region in which both retailers are (strictly) profitable in the competitive market and consider innovations that increase high‐end appeal, low‐end appeal, and/or reduce unit cost. We find that the online firm has a strong incentive to invest in innovations that either reduce unit cost and/or, equivalently, increase the appeal to all consumers equally. Investments of this type are strategic complements: implementing one increases the value of another, so the value of two innovations of this type is more than the sum of the values of each individually. We identify a relative strength measure of the online firm such that, as its high‐end appeal increases and/or its unit cost decreases, we say that the online firm is stronger. This strength measure facilitates drawing an explicit dividing line between strong and weak online firms. If Internet penetration increases, the online firm's profits increase if and only if it is strong. If penetration increases over time, it is possible for a strong firm to turn weak and see its profits decrease and possibly disappear completely. A strong online firm has more opportunity to profit from low‐end innovations than does a weak one, while the opposite is true for high‐end innovations. Interestingly, some innovations may actually decrease the online firm's profits. We discuss the implications of our results for existing and future online innovations. 相似文献
56.
AbstractIn this essay, we offer our stories of family and migration under a Donald Trump presidency. We are a lesbian couple; one of us is a citizen of the United States while the other is a citizen of a Muslim country. We use autoethnographic methods to explore and interrogate our “messy and fabulous” journey of liminality; our journey of belonging and exclusion, where we grapple with issues related to sexuality, family, career, and citizenship. Our “voices” are used both individually and in unison, to highlight our intersectional and relational selves. We intend this work to contribute to the many ways we can better understand and appreciate the bountiful and colorful vistas of lesbian families’ migrant experiences. 相似文献
57.
Cheryl Buehler 《Journal of marriage and the family》2020,82(1):145-174
The primary purpose of this review was to examine theory and research published during the past decade that focused on family processes and children's and adolescents' well-being. Scholarship focused on family processes and child and adolescent well-being made significant and exciting advances during this decade based on several key advancements. In addition to a brief introduction and a conclusion, this decade in review is organized into four sections. In the first section, advances made in the literature because of increased attention to complexity and specificity are illustrated. The second section describes advances that were made because of increased attention to family processes in diverse families. Diversity in the samples of families studied, extensions in family process models, and the revisioning of grand theories using a diversity lens that were used to conceptualize family processes are detailed. In the third section, the importance of time in the study of family processes and child and adolescent well-being is described. The emphasis on families' daily lives is noted. In addition, prospective considerations and studies of change over time are highlighted. Strengths in family functioning are detailed in the fourth section of this article: positivity, regulatory processes, and family organization. These three areas were selected to elaborate the idea that one of the major advancements in the family process literature during the past decade was an emphasis on family strengths. This review concludes with a commentary regarding how conceptual and methodological advancements during the past decade can guide future scholarship. 相似文献
58.
59.
Diffusion theory has typically focused on how communication, internal or external to a social system, leads to adoptions and diffusion of an innovation. We develop a diffusion and substitution model based on a somewhat different perspective. In some cases, progressive improvements in product attributes and/or continual cost reduction seem to be a key driver of the diffusion process. For example, after introduction of the 5.25‐inch disk drive, its capacity continually increased, and accordingly, so did customer willingness‐to‐pay. Our model is based on a linear reservation price framework, in which a product is described by its depth (defined as the difference between a product̂s maximum reservation price and its production cost), and its breadth (related to the slope of its reservation price curve), indicating how broadly it appeals across various customer segments. Because of changes in product depths and breadths over time, customers who previously preferred the old product may later prefer the new product, thus creating the diffusion process. While the Bass model describes diffusion as a function of the coefficients of innovation and imitation, in our model, it is described by the coefficients of depth and breadth (the rates of change in relative depth and breadth), along with an S‐coefficient that we associate with the technology S‐curve. We fit our model to data from the disk‐drive and the microprocessor industries. 相似文献
60.
Alison Snow Jones Nan M. Astone Penelope M. Keyl Young J. Kim Cheryl S. Alexander 《Journal of Family and Economic Issues》1999,20(4):387-418
This research examines the impact of teenage childbearing on secondary school completion, while focusing on the problem of causal ambiguity in the relationships among self-determined behaviours. Techniques for dealing with the teenage childbearing problem are discussed, and results from these methods are compared. Data from the High School and Beyond Study on young women (n = 5257) who were enrolled as sophomores in sample schools in February 1980 and who had not given birth before November 1980 are used. Results indicate that teen childbearing reduces the probability of completing high school by 8% to 10%. Some evidence suggests that programs that target reduction of teen childbearing in improving young women's education and subsequent economic and labor force outcomes. 相似文献