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In two experiments, participants inspected and drank a series of drinks, half of which contained sugar and half unpalatable Tween20 (tween). Each sugar and tween drink had a particular flavor and color. Following this training, the flavors of the sugar drinks were assigned higher hedonic evaluations than were those of the tween drinks, even though the participants did not reliably report which flavors had been present in the sugar and tween drinks during training. Moreover, the evaluative conditioning of the flavors was unaffected by whether or not the colors alone had been pretrained to predict the presence of sugar or tween in the drinks. In accord with Baeyens, Eelen, van den Bergh, and Crombez (1990), we conclude that flavor-evaluative conditioning is not mediated by contingency learning.  相似文献   
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Phonological awareness, phonological memory, and phonological access to lexical storage play important roles in acquiring literacy. We examined the convergent, discriminant, and predictive validity of these phonological processing abilities (PPA) in 389 3-, 4-, and 5-year-old children. Confirmatory factor analysis supported the validity of each PPA as separate from general cognitive ability and separate from each other. Multigroup structural equation modeling (SEM) with mean structure demonstrated that older preschoolers have better developed latent PPA than younger preschoolers but that the structure of PPA is equivalent. RAN was found uniquely associated with letter knowledge and text discrimination in younger preschoolers, and PA was found uniquely associated with word reading skills in older preschoolers. Finally, general cognitive ability was only indirectly associated with emergent literacy via PPA. These results highlight the importance of PPA in the early literacy development of English-speaking preschool children.  相似文献   
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"非形式逻辑"作为逻辑的子领域,最初出现于1970至1980年代的美国和加拿大,本文意在回顾非形式逻辑发展的早期历史进程.本文假定,当我们从历史的角度来考察时,非形式逻辑的本质能够得以阐明.因此,我将以观念史领域的评论作为出发点.之所以不从理论的要素谈起并把历史留给历史学家,其中一个理由在于"非形式逻辑"这个词并不指示一个理论.非形式逻辑部分地可看作是某个思潮,部分地可当作一种论证研究进路,部分地涉及到对逻辑之本质的看法,这些都可以通过考察非形式逻辑的发展史来加以理解.本文的第一部分追溯了非形式逻辑的兴起,概括了其思想史和社会史,并评述了其早期发展中的主要人物、教科书,以及主要的论旨及其社会化.第二部分简要描述了<逻辑的自我辩护>这本教科书中的一些革新.第三部分简要涉及非形式逻辑与其它领域的早期互动.  相似文献   
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The word “empowerment” is associated with several different and fundamentally inadequate paradigms. This paper presents an alternative, empowering view of empowerment. The essence of empowerment is increasing the behavior potential of persons, individually and in groups and organizations. Behavior potential is not some abstract concept of “what a person might do if” Instead, it is the totality of behaviors that are actually available to a given person in a given environment. These behaviors do not occur in a vacuum; behavior potential is the intersection of the person's behavioral productions with the organization's expectations and permissions. An individual is empowered to the extent that he or she possesses a rich repertoire of behaviors and is expected and permitted to make full use of this repertoire by the organization.  相似文献   
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BackgroundOne-hour postprandial hyperglycemia is associated with increased risk of type 2 diabetes and cardiovascular disease. Physical activity (PA) has short-term beneficial effects on post-meal glucose response. This study compared the oral glucose tolerance test results of 3 groups of people with habitually different levels of PA.MethodsThirty-one adults without diabetes (age 25.9 ± 6.6 years; body mass index 23.8 ± 3.8 kg/m2; mean ± SD) were recruited and divided into 3 groups based on self-reported PA volume and intensity: low activity < 30 min/day of moderate-intensity activity (n = 11), moderately active ≥ 30 min/day of moderate-intensity PA (n = 10), and very active ≥ 60 min/day of PA at high intensity (n = 10). Participants completed an oral glucose tolerance test (50 g glucose) with capillary blood samples obtained at baseline, 15 min, 30 min, 45 min, 60 min, 90 min, and 120 min post-ingestion.ResultsThere were no significant differences between groups for age or body fat percentage or glycated hemoglobin (p > 0.05). The groups were significantly different in terms of baseline glucose level (p = 0.003) and, marginally, for gender (p = 0.053) and BMI (p = 0.050). There was a statistically significant effect of PA on the 1-h postprandial glucose results (p = 0.029), with differences between very active and low activity groups (p = 0.008) but not between the moderately active and low activity groups (p = 0.360), even when baseline glucose level and gender differences were accounted for. For incremental area under the curve there was no significant effect of activity group once gender and body fat percentage had been accounted for (p = 0.401). Those in the low activity group took 15 min longer to reach peak glucose level than those in the very active group (p = 0.012).ConclusionThe results suggest that high levels of PA have a beneficial effect on postprandial blood glucose profiles when compared to low and moderate levels of activity.  相似文献   
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In 1145–1146, Sayf al-Dawla returned to al-Andalus to create an independent kingdom and return the Banū Hūd of Zaragoza to prominence. His task was a difficult one, not least because he’d spent a decade serving the Christian king Alfonso VII. After a year of campaigning, Sayf al-Dawla secured a base of support in Murcia. However, he died shortly after his coronation in a battle with Christian allies who were allegedly sent by Alfonso to help him. In addition to providing an explanation for the battle and his death, the article examines how Sayf al-Dawla promoted the legitimacy of his state through his coinage, adherence to Andalusī traditions, and a network of fellow exiles. It interprets the Zaragozan ?ā’ifa as a moveable faction rather than a fixed geographical entity and connects Sayf al-Dawla’s kingdom to later movements to demonstrate how his actions preserved the Banū Hūd’s prestige in Andalusī imaginations.  相似文献   
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