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1.
Two experiments attempted to establish vicious-circle behavior through fear motivation combined with secondary punishment. In Experiment 1, rats were trained with two CSs, a tone and a buzzer, paired with shock in different contexts. Secondary punishment based on delay and trace conditioning procedures facilitated running in fear-motivated rats, relative to four control groups. In Experiment 2, rats were given pairings of a tone CS with shock, and a buzzer CS with a drop into a water tank. Fear-motivated rats which received secondary punishment during either 33% or 100% of test trials exhibited self-punitive running relative to a nonpunished (0%) group and a backward-conditioning control group. Results indicate that “all secondary” vicious-circle behavior can be established through Pavlovian conditioning, thus supporting a conditioned fear interpretation.  相似文献   
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Infant joint attention has been observed to be related to social-emotional outcomes in at-risk children. To address whether this relation is also evident in typically developing children, 52 children were tested at 12, 15, 24, and 30 months to examine associations between infant joint attention and social outcomes. Twelve-month initiating and responding to joint attention were related to 30-month social competence and externalizing behavior, even when accounting for 15-month temperament ratings, 24-month cognition and language, and demographic variables. These results suggest that, in addition to associations with language and cognition, infant joint attention reflects robust aspects of development that are related to individual differences in the emergence of social and behavioral competence in childhood.  相似文献   
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Teachers' explanations for students' low achievement were reliably classified using the attributional coding system proposed by Cooper and Good (1983). Teachers most frequently attributed low achievement to a typical pattern of low effort. They viewed acquired student characteristics (e.g., low motivation, poor work habits) as more important than either teacher variables or classroom variables in explaining students' low achievement. Implications of these attribution patterns for improving student achievement and for developing student self-esteem are discussed.  相似文献   
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Education is an indispensable element for the development of society. In Latin America, the point of origin of most of the undocumented immigrants to the United States, equal opportunity in access to education and educational achievement is still pending. The study presented here focuses on the analysis of the expectations of female migrants via Mexico’s northern border, focusing attention on educational attainment as an important aspect of the “American Dream” of the migrant women interviewed and their dependents.  相似文献   
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The essay explores the ways that the North American Soccer Leagues (NASL) attempted to frame footballing stars in terms that North American fans would understand and embrace. The impetus for this approach was economic and influenced by the success of Pelé. However, the essay argues that the approach was deeply flawed and missed the obvious challenge of replacing Pelé – that he was irreplaceable. Nevertheless, the NASL and its boosters sought to position several stars as the natural successors to Pelé, including Franz Beckenbauer, George Best and Johan Curyff. The essay thus explores how these NASL stars were framed and how these frames would ultimately become limited.  相似文献   
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A metric analysis of blogs on library and information science (LIS) between November 2006 and June 2009 indexed on the Libworm search engine characterizes the community's behavior quantitatively. An analysis of 1108 personal and corporate blogs with a total of 275,103 posts is used to calculate survival rate, production (number of posts published), and visibility via such indicators as links received, Technorati authority, and Google's PagePank. Over the study period, there was a 52% decrease in the number of active blogs. Despite the drop in production over this period, the average number of posts per blog remained constant (14 per month). The most representative blogs in the discipline are identified. The emergence of such platforms as Facebook and Twitter seems to have meant that both personal and corporate blogs have lost some of their prominence.  相似文献   
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