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Law and Philosophy -  相似文献   
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The purpose of this article is to examine certain aspects of the interaction between changes in agricultural technology and changes in the aggregate level of labour utilization in agriculture. The first part of the article describes an identity which establishes a relationship between the average output per person in agriculture, the size of the agricultural labour force in relation to the area under cultivation, and the average yield per acre of cultivated land. It also suggests that changes in each of the two latter parts of the identity can be associated with a particular form of technological change. The second part presents the Japanese, Taiwanese and Mexican experiences of agricultural growth in terms of the identity, with supporting data on the nature of the technological changes that have occurred. The final part begins with a summary of the experience of the three countries. Thereafter, it suggests that, in view of the high rate of growth of the labour force in developing countries, there should be a greater appreciation of the ways in which government policies may influence the direction of technological changes and of the possible implications of these changes on aggregate levels of labour utilization in agriculture.

The approach to assessing the impact of technological change that is incorporated in this paper differs in two respects from the approaches of standard literature on the subject (3, pp. 88–101; 4, pp. 709–29; 1, pp. 312–20). ? In the first place, it involves an explicit though partial explanation of the phenomenon rather than an emphasis on measuring its effect. Each of the two forms of technological change—land‐saving and labour‐saving—is identified as the introduction of particular new resources. A more complete explanation would require an additional hypothesis as to why individual entrepreneurs might want to innovate (that is, to introduce new resources); no such hypothesis is included in this study. In the second place, the suggested approach does not require the specification of a production function. The use of an identity has the advantage of allowing useful insights into the process of technological change while avoiding the analytical biases that can be introduced in specifying a production function.  相似文献   
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The purpose of this study was to investigate the trajectories of behavioral problems for a sample of predominately minority adolescents (n = 212, 91% African-American and/or Hispanic, 45% boys, 55% girls) in a large, urban school district and to determine the impact of parental and peer relationships, gender, and risk status on their development during middle and high school. Multi-level growth modeling was the primary statistical procedure used to track internalizing and externalizing behavioral problems across time. Results indicated that behavioral problems as rated by students’ teachers declined significantly for both boys and girls, a finding that is in direct contrast to previous studies of adolescent behavior. The quality of parental relationships was a strong predictor of both types of behavior whereas the quality of peer relationships predicted only internalizing behavioral symptoms. These findings suggest that behavioral trajectories may be somewhat unique for this population underscoring the need for additional research in this area. The findings also have implications for intervening with children and youth who display behavioral problems during critical developmental periods.  相似文献   
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Sparse literature exists on the topic of intimacy appeals in political advertising, so in this study Horton and Wohl's para-social theory was applied to explain the “relationship” in Israel between television performers (politicians) and spectators (voters) through the intimacy concept. Altogether, 442 political ads from two Israeli election campaigns (1996 and 1999) were analyzed to test three hypotheses on the use of intimacy appeals across campaigns and political parties. The intimacy appeal measure consisted of five intimacy techniques and was thus characterized as a macro-level variable. These techniques appear in the codebook as five questions that examine whether the spots present words of intimacy, intimate situations, families of politicians, nonverbal expressions, and children. The results indicate that intimacy appeals in political spots are quite popular. Religious and left-leaning parties tended to use intimacy appeals significantly more than nonreligious and right-leaning parties. We conclude that politicians indeed use the same intimacy strategies and techniques as other television performers do; therefore, para-social theory accords with the concept of intimacy in political advertising as much as in other communication settings.  相似文献   
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This paper has a threefold purpose: to question the adequacy of two familiar proposals for explaining the permissibility of harming others in self-defense, to suggest an alternative explanation, and to answer some objections to this latter explanation. By and large, discussions of the proposals whose adequacy I will question focus on what they imply about the permissibility of self-defense in controversial cases. I will argue here that the proposals themselves contain large and significant theoretical gaps. Accordingly, examining their implications for controversial cases is premature, since they don’t adequately explain permissible self-defense in even the clearest cases—that is, those in which people defend themselves against “culpable attackers”.  相似文献   
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Law and Philosophy -  相似文献   
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At a time when Europe faces numerous crises, there is a real need for rigorous evidence to underpin effective policymaking. However, a gap between academia and policy creates clear obstacles in the use of evidence in policymaking. Many of these enduring obstacles are manifest in the inherent differences between separate communities: academics have difficulty communicating research in an applicable manner, and policymakers, in turn, tend to focus on operational motivations. The gap widens considerably when foreign, security and defence policy within the complex institutional structures of the European Union is considered. In addition to these well known barriers to evidence-based policy, there are two more obstacles in the defence and security space: sovereignty and dispersed decision-making. A dialogue of best practices must be opened up to broker knowledge in the EU context.  相似文献   
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