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1.
Evan Weissman 《Environmental Education Research》2015,21(3):351-364
Driven by social and environmental criticism of the neoliberalization of agro-food systems, urban agriculture today enjoys renewed interest throughout the United States as a primary space to engage the politics of food. Using Brooklyn, New York as a case study, I employ mixed qualitative methods to investigate the contradictions that arise in tensions between the goals of urban agriculture and its practice. Education and youth development programming figure prominently in Brooklyn’s urban agriculture movement and provide insights into understanding the neoliberalization of food politics, especially an emphasis on market mechanisms as central to human well-being and the disciplining of youth in the skills and modes of conduct required by the neoliberal economy. Although current trends indicate that urban agriculture youth programming works to (re)produce neoliberalism and undercuts the political efficacy of Brooklyn’s urban agriculture, these projects simultaneously produce openings for building political solidarities. 相似文献
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Elisa Ugarte Marigen Narea Daniela Aldoney David G. Weissman Paul D. Hastings 《Child development》2021,92(3):871-888
Latent class analysis and multigroup mediation were used with 8,860 families in Chile to identify risk groups varying in socioeconomic status, family structure, and maternal depression, to determine whether profiles differed in children’s development of externalizing problems (EP) from 35 to 61 months, and maternal parenting that predicted EP. Four groups were identified: one no-risk profile and three risk profiles, impoverished and undereducated, depressed and impoverished, and father-absent and impoverished. All classes differed in EP. Maternal emotional support and harsh parenting were differentially associated with the development of EP across the three risk groups, relative to the low-risk group. Thus, specific constellations of adversities differentially predicted children’s EP and socialization processes mediating links between risk and EP. Implications are discussed. 相似文献
3.
Dr. Shel Weissman Dr. Richard L. Morrison Dr. David O. Krebs Dr. Michael J. Dillon Dr. Francine Toder Dr. Nina Krebs 《Innovative Higher Education》1978,2(4):300-308
The purpose of this article is to describe how one university counseling center went about the process of changing its management style and subsequent service delivery. In a relatively short period of time the center went from the traditional director-staff relationship to a collective governance process. This shared governance process is based on the assumptions that the product of collective planning, shared responsibilities, and group decision making enhance morale, creativity, and productivity. As a result of the arduous tasks involved in the shift of administrative styles, the center has established group accountability, collective decision making, open communication, and total group program development. For this center's staff the transition to nonauthoritarian governance has been both stimulating and exciting. However, the process of change involves high risks, continual cooperation, and a climate of support. Without these ingredients the potential for creative management will be sharply reduced. 相似文献
4.
加拿大英语除了具有鲜明的创新性特点以外,其保守性特点也很突出。18世纪末英国殖民者将当时的英语带到北美。随着时代的变迁,英语在祖国发生了变化,但大洋彼岸因种种因素没有发生同样的变化。因此在今天的加拿大英语中却仍可寻到昔日英国英语的痕迹。这在语音、词汇和语法方面均有体现。加拿大英语保守性特点的成因主要有语言接触因素、社会因素和移民源的心理因素。通过对加拿大英语保守性特点及其成因的分析,有助于英语的学习与传播。 相似文献
5.
Home advantage in team games is well proven and the influence of the crowd upon officials' decisions has been identified as a plausible cause. The aim of this study was to assess the significance of home advantage for five event groups selected from the Summer Olympic Games between 1896 and 1996, and put home advantage in team games in context with other sports. The five event groups were athletics and weightlifting (predominantly objectively judged), boxing and gymnastics (predominantly subjectively judged) and team games (involving subjective decisions). The proportion of points won was analysed as a binomial response variable using generalized linear interactive modelling. Preliminary exploration of the data highlighted the need to control for the proportion of competitors entered and to split the analysis pre- and post-war. Highly significant home advantage was found in event groups that were either subjectively judged or rely on subjective decisions. In contrast, little or no home advantage (and even away advantage) was observed for the two objectively judged groups. Officiating system was vital to both the existence and extent of home advantage. Our findings suggest that crowd noise has a greater influence upon officials' decisions than players' performances, as events with greater officiating input enjoyed significantly greater home advantage. 相似文献
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7.
This paper reviews the results of a research study designed to assess the effectiveness of the policies governing the developmental education program at a comprehensive community college. The major issues addressed in the study are required remediation of skill-deficient students, enrollment in college-level courses by skill-deficient students, and differing policies for skill-deficient students depending on the extent of deficiency. The results point to guidelines for designing or revising policies governing developmental education programs. A recently implemented student tracking system was used to conduct this comprehensive and in-depth analysis of student enrollment patterns, persistence, and performance. 相似文献
8.
We consider text retrieval applications that assign query-specific relevance scores to documents drawn from particular collections.
Such applications represent a primary focus of the annual Text Retrieval Conference (TREC), where the participants compare
the empirical performance of different approaches. P(K), the proportion of the top K documents that are relevant, is a popular measure of retrieval effectiveness.
Participants in the TREC Very Large Corpus track have observed that when the target is a random sample from a collection,
P(K) is substantially smaller than when the target is the entire collection. Hawking and Robertson (2003) confirmed this finding
in a number of experimental settings. Hawking et al. (1999) posed as an open research question the cause of this phenomenon
and proposed five possible explanatory hypotheses. In this paper, we present a mathematical analysis that sheds some light
on these hypotheses and complements the experimental work of Hawking and Robertson (2003). We will also introduce C(L), contamination at L, the number of irrelevant documents amongst the top L relevant documents, and describe its properties.
Our analysis shows that while P(K) typically will increase with collection size, the phenomenon is not universal. That is, the asymptotic behavior of P(K) and C(L) depends on the score distributions and relative proportions of relevant and irrelevant documents in the collection.
While this article went to press, Yehuda Vardi passed away. We dedicate the paper to his memory. 相似文献
9.
PROBLEM: Various demographic and community characteristics are associated with child abuse rates in national and urban samples, but similar analyses have not been done within rural areas. This study analyzes the relationships between reported and substantiated rates of child abuse and county demographic, health care resource and social services factors in a predominantly rural state in the US. METHODS: County-level data from Iowa between 1984-1993 were analyzed for associations between county characteristics and rates of child abuse using univariate correlations and multivariate stagewise regression analysis. Population-adjusted rates of reported and substantiated child abuse were correlated with rates of children in poverty, single-parent families, marriage and divorce, unemployment, high-school dropouts, median family income, elder abuse, birth and death rates, numbers of physicians and other healthcare providers, hospital, social workers, and number of caseworkers in the Department of Human Services. RESULTS: Rates of single-parent families, divorce and elder abuse were significantly associated with reported and substantiated child abuse in multivariate analysis, while economic and most health care factors were not. Reporting and substantiation rates differed across districts after adjustment for multiple factors including caseworker workload. CONCLUSIONS: In this rural state, family structure is more significantly associated with child abuse report and substantiation rates than are socioeconomic factors. The level of health care resources in a county does not appear to affect these rates. 相似文献
10.
Research suggests that young children may see a direct and one-way connection between facts about the world and epistemic mental states (e.g., belief). Conventions represent instances of active constructions of the mind that change facts about the world. As such, a mature understanding of convention would seem to present a strong challenge to children's simplified notions of epistemic relations. Three experiments assessed young children's abilities to track behavioral, representational, and truth aspects of conventions. In Experiment 1, 3- and 4-year-old children (N = 30) recognized that conventional stipulations would change people's behaviors. However, participants generally failed to understand how stipulations might affect representations. In Experiment 2, 3-, 5-, and 7-year-old children (N = 53) were asked to reason about the truth values of statements about pretenses and conventions. The two younger groups of children often confused the two types of states, whereas older children consistently judged that conventions, but not pretenses, changed reality. In Experiment 3, the same 3- and 5-year-olds (N = 42) participated in tasks assessing their understanding of representational diversity (e.g., false belief). In general, children's performance on false-belief and "false-convention" tasks did not differ, which suggests that conventions were understood as involving truth claims (as akin to beliefs about physical reality). Children's difficulties with the idea of conventional truth seems consistent with current accounts of developing theories of mind. 相似文献