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171.
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This article argues that there is a gap in current Mexican rural development policy that could be filled by a smallholder‐targeted programme. The gap exists because agricultural programmes tend to benefit better‐off farmers, while social programmes tend to focus on long‐term investment in human capital, specifically for the children of today's poor. Drawing on lessons from PROCAMPO and Oportunidades, it offers a specific design for such a programme at a time when the government is considering how to reform PROCAMPO, given that, after 15 years, it is due to come to an end.  相似文献   
173.
Despite the substantial amount of literature focusing on social support for pregnant and parenting adolescents, few studies have directly examined the relationships among stress and social support across their transition to parenting. The present study investigates the nature of the relationship between stress and support both before and after the birth of the baby. Two groups of adolescent females (one group facing parenthood and one not) completed measures of support and stress across a 7-month period (N = 231) to coincide with the transition to parenthood. In general, support and stress were negatively related when measured concurrently and positively related over time for parenting adolescents but not the non-parenting group. Understanding how long social support impacts stress will enable practitioners to identify when best to provide interventions for pregnant and parenting adolescents.  相似文献   
174.
Most statistical computing for data analysis has come to depend upon statistical program packages. In recent years, interactive computing has become widespread both on large time-sharing systems and on mini-computers. This paper identifies ways in which interactive statistical software packages differ from batchoriented software and discusses evaluation considerations pertaining specifically to interactive packages.  相似文献   
175.
The derivation of a simpie mexhoa for confounding in mixed factorial experiments from an isomorphism of finite abelian groups is presented. The theoretical bases of confounding procedures that use modular arithmetic for such experiments are compared.  相似文献   
176.
In this article, we summarize evidence from observations of engineering teams for the importance of active listening in collaborative design problem solving. We focus on the way speakers use freehand sketching to convey complex design ideas, and how listeners support them whilst they do this. We argue that listeners temporarily redistribute the shared cognitive load of discourse production and comprehension within design teams: whilst speakers are engaged in sketch construction they are unable to take account of listener understanding, and listeners respond intuitively by anticipating and avoiding difficulties in this process. We conclude that this cooperativeness emerges naturally from the operation of effort conserving principles underlying collaborative social interaction, and show that by focusing on the contribution of the listener to the production of creative engineering discourse, this principle can be thrown into sharp relief.  相似文献   
177.
Natal’ia Gorbanevskaia is primarily known as a poet and leading human rights activist, as well as for her role as author and editor at Kontinent and Russkaia mysl’. One important and substantial aspect of her life that is not well known outside of limited circles is the formative influence of Polish culture and thought on her as well as her extensive contribution to Polish culture and its dispersion, and the promotion of mutual understanding between Poles and Russians. This article traces this relationship and situates it within the context of a broader pattern of Polish influence on Russian culture beginning in the mid-1950s as well as connecting Gorbanevskaia to the seminal figure of Giedroyc, both directly and by virtue of shared concerns and interests. The period beginning with her emigration to Paris in 1976 sees her fully committed to expanding access for Russians, in exile and at home, to cultural, political, social and other texts and information about Poland. Chronologically, the nominal limits of this narrative are the popular interest journal Pol’sha which had a huge appeal for many Soviets beginning from 1956, and the journal Novaia Pol’sha of which she is a member of the editorial board, and which has been published in Russian in Warsaw since 1999 with the goal of establishing thoughtful dialogue between Poles and Russians.  相似文献   
178.
At a data analysis exposition sponsored by the Section on Statistical Graphics of the ASA in 1988, 15 groups of statisticians analyzed the same data about salaries of major league baseball players. By examining what they did, what worked, and what failed, we can begin to learn about the relative strengths and weaknesses of different approaches to analyzing data. The data are rich in difficulties. They require reexpression, contain errors and outliers, and exhibit nonlinear relationships. They thus pose a realistic challenge to the variety of data analysis techniques used. The analysis groups chose a wide range of model-fitting methods, including regression, principal components, factor analysis, time series, and CART. We thus have an effective framework for comparing these approaches so that we can learn more about them. Our examination shows that approaches commonly identified with Exploratory Data Analysis are substantially more effective at revealing the underlying patterns in the data and at building parsimonious, understandable models that fit the data well. We also find that common data displays, when applied carefully, are often sufficient for even complex analyses such as this.  相似文献   
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180.
Reference groups and significant others are vitally important in both the formation and the persistence or change of normative as well as deviant behavior patterns. Thus one's initial religious beliefs and behavior (or lack thereof) reflect the socializing influence of the family. However, the situation may change when young people leave home for education or work, as demonstrated by research that shows decreases in religious beliefs or church attendance when young people leave home to attend college. In contrast to the pattern whereby religiosity declines in a college or university environment, we maintain that students who develop close ties with others who are religious, especially in a highly religious community, will maintain the same patterns of high commitment developed in their families. Specifically, we hypothesize that religious beliefs and participation will be positively related to (1) parents' religious beliefs and practices and (2) current friends' religious beliefs and participation. These hypotheses were tested with a sample of college students living on campus (n = 339). The data support the argument that students' current religious beliefs and behavior are related to both their parents' religiosity and the reinforcing effects of the religiosity of their current friends.  相似文献   
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