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421.
The purpose of this study was to evaluate the effectiveness of 2 transfer of stimulus control procedures to teach tacting to individuals with autism. Five participants with differing verbal skills were assessed by a subset of the ABLLS prior to intervention, then were taught 36 previously unknown tacts using the receptive-echoic-tact (r-e-t) and echoic-tact (e-t) transfer procedures. Each transfer method was used separately to establish different tacts, in a multiple baseline design across tacts for 3 sets of stimuli. The results showed that 4 out of 5 participants (who demonstrated mands, tacts, echoics, and sometimes intraverbals prior to the study) acquired all targeted tacts when either r-e-t or e-t training was presented. One participant (who emitted no verbal operants at the onset of the study) did not acquire any tacts. While some participants appeared to learn more quickly with one transfer method, neither method emerged as more efficient with learners with fewer or more extensive verbal skills. The results indicate that both transfer methods promoted the acquisition of tacts for learners with autism with at least minimal verbal skills.  相似文献   
422.
The focus of this paper is on the mechanisms whereby liberal and well‐meaning democratic societies propagate a cycle of disposession where immigrants are constructed as least resourced while the powerful retain their power. Specifically discussed is the semiotic management of traditional hierarchies of privilege and access through language ideological discourses pertaining to second language acquisition, multilingualism and heterogeneity. One notion in particular is discussed in this context, namely Rinkeby Swedish , a potential, imagined, pan‐immigrant contact variety of Swedish. The discussion is framed within a primarily Bourdieuean conceptual apparatus using concepts of symbolic market, explaining the role of language boundaries and their institutional policing, and detailing the semiotic processes of iconization whereby immigrants are positioned as outside of a symbolically reconstituted community of 'real' Swedish speakers, in strategic attempts to restrict their access to important linguistic and symbolic resources.  相似文献   
423.
Inthis paper we build on previous work for estimation of the bivariatedistribution of the time variables T 1 and T 2when they are observable only on the condition that one of thetime variables, say T 1, is greater than (left-truncation)or less than (right truncation) some observed time variable C 1.In this paper, we introduce several results based on the InfluenceCurve (which we derive in this paper) of the NPMLE of the distributionF of (T 1,T 2) developed by van derLaan (van der Laan, 1996). Specifically we will: prove that theNPMLE is asymptotically equivalent to an estimator developedby Gürler (Gürler, 1997), derive the asymptotic distributionof the NPMLE based on its Influence Curve, present tests to determinethe amount of dependence between T 1 and T 2,present the results of simulation studies that compare the NPMLEand Gürler's estimator and evaluate the performance of boththe above mentioned tests and confidence intervals of Fbased on the asymptotic distribution of the NPMLE, and finallywe will apply the methods in a data analysis in which we alsopoint out practical issues that arise in the implementation ofthe estimator.  相似文献   
424.
促进人类健康是全世界的愿望.改善人类环境和提高生活质量是休闲体验的前提条件.毫无疑问,休闲已经成为当今社会的一股新生力量,它有能力通过文化认同、扩大选择权、维持经济的持续增长促进个人、社区和国家的发展,对改善人类生存状况和提高个人的健康水平功不可没.世界休闲组织,作为世界性的组织,致力于帮助个人和组织了解休闲是如何提高人类的生活质量的.同时致力于科研,促进休闲,并通过项目和服务,改进休闲政策和法规.世界休闲组织相信休闲能为全世界人民耨拥有精彩的人生提供一种模式.  相似文献   
425.
This research applies the social disorganization perspective on the neighborhood‐level determinants of crime to partner violence. The analysis brings data from the 1990 Decennial Census together with data from the 1994–1995 Project on Human Development in Chicago Neighborhoods Community Survey, the 1994–1995 Chicago homicide data, and data from the 1995–1997 Chicago Health and Social Life Survey. The findings of this study indicate that collective efficacy—neighborhood cohesion and informal social control capacity—is negatively associated with both intimate homicide rates and nonlethal partner violence. Collective efficacy exerts a more powerful regulatory effect on nonlethal violence in neighborhoods where tolerance of intimate violence is low. Collective efficacy also increases the likelihood that women will disclose conflict in their relationships to various potential sources of support.  相似文献   
426.
An economic evaluation of five outpatient adolescent treatment approaches (12 total site-by-conditions) was conducted. The economic cost of each of the 12 site-specific treatment conditions was determined by the Drug Abuse Treatment Cost Analysis Program (DATCAP). Economic benefits of treatment were estimated by first monetizing a series of treatment outcomes and then analyzing the magnitude of these monetized outcomes from baseline through the 12-month follow-up. The average economic costs ranged from $90 to $313 per week and from $839 to $3,279 per episode. Relative to the quarter before intake, the average quarterly cost to society for the next 12 months (including treatment costs) significantly declined in 4 of the 12 site-by-treatment conditions, remained unchanged in 6 conditions, and increased in 2 treatment conditions (both in the same site). These results suggest that some types of substance-abuse intervention for adolescents can reduce social costs immediately after treatment.  相似文献   
427.
428.
We use insurance behavior as a context to study affective influences in seemingly purely monetary decisions. We report two related findings. First, people are more willing to purchase insurance for an object at stake, the more affection they have for the object, holding the amount of compensation constant. Second, if the object is damaged, people are also more willing to go through the trouble of claiming a fixed amount of compensation, the more affection they have for the object. These effects are not predicted by standard decision theories. We explain these findings by a consolation hypothesis, according to which, people perceive insurance compensation as a token of consolation, and we discuss its implications for affective influences in other types of decisions.  相似文献   
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