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21.
Feminism and psychoanalysis have been in constant dialogue over the last four decades, and Juliet Mitchell has played a critical role in instigating and shaping that conversation. Yet her own work incorporates some of the most contentious aspects of it. Here I explore her latest book, Madmen and Medusas, to reflect upon why the relationship between her work and that dialogue remains so troubled. This exploration enables me to consider, once more, the contrasts between psychoanalytic perspectives that focus upon kinship, ideology, and symbolic structures and those which stress the historical contingency of gender categories.  相似文献   
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The analysis of data using a stable probability distribution with tail parameter α<2 (sometimes called a Pareto–Levy distribution) seems to have been avoided in the past in part because of the lack of a significance test for the mean, even though it appears to be the correct distribution to use for describing returns in the financial markets. A z test for the significance of the mean of a stable distribution with tail parameter 1<α≤2 is defined. Tables are calculated and displayed for the 5% and 1% significance levels for a range of tail and skew parameters α and β. Through the use of maximum likelihood estimates, the test becomes a practical tool even when α and β are not that accurately determined. As an example, the z test is applied to the daily closing prices for the Dow Jones Industrial average from 2 January 1940 to 19 March 2010.  相似文献   
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This paper argues that sociologists interested in service work in consumer culture should pay attention to customers' understandings and accounts of their experience and participation in service encounters. It takes the market for sex as a case study and counters the neglect of customers within the study of service work by analysing customer service reviews of paid‐for sex published on a UK website, Punternet. It argues that male customers, familiar with the norms of consumer culture, assess the erotic, aesthetic and emotional labours performed by female workers to make judgements of service quality which suggests that the feminised ‘good worker’ is defined as professional when they disguise the market transaction.  相似文献   
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Ranked set sampling is a procedure which may be used to improve the precision of the estimator of the mean. It is useful in cases where the variable of interest is much more difficult to measure than to order. However, even if ordering is difficult, but there is an easily ranked concomitant variable available, then it may be used to “judgment order” the original variable. The amount of increase in the precision of the estimator is dependent upon the correlation between the 2 variables.  相似文献   
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Abstract

Background: Young adults remain the earliest legal target for the tobacco industry. Against this, the existence of smoking policies would appear to offer some protection to students on campus. However, little research has been conducted into the outcomes of such policies from a student perspective. Methods: The authors conducted 8 focus groups at 4 selected Canadian undergraduate campuses to investigate student perceptions and behaviors resulting from campus smoking policies. Results: Results indicated that student smoking behaviors are minimally impacted by campus smoking policies due to seriously compromised implementation and enforcement. Conclusions: These findings imply that the presence of campus smoking policies and claims of “smoke-free” campuses should not be misinterpreted as achievement and without renewed focus and adequate tobacco control infrastructure, it will remain possible for young adults to initiate and maintain tobacco smoking on campus.  相似文献   
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High levels of worldwide migration paired with increasingly negative attitudes toward immigrants and immigration in host countries indicate that it is crucial to gain an understanding of the bases of these attitudes. This article discusses one determinant of negative attitudes toward immigrants and immigration: perceived competition for resources. We present our instrumental model of group conflict, which suggests that competition for resources, and attempts to remove this competition, are important determinants of intergroup attitudes and behavior. We then review relevant research on perceived competition and attitudes toward immigrants and immigration. We conclude by discussing the implications of this research for attempts to alleviate tension between immigrants and members of host populations, and for our more general model of group conflict.  相似文献   
29.
It has been suggested that infants respond preferentially to infant‐directed speech because their auditory sensitivity to sounds with extensive frequency modulation (FM) is better than their sensitivity to less modulated sounds. In this experiment, auditory thresholds for FM tones and for unmodulated, or pure, tones in a background of noise were measured for 4‐month‐old infants using a conditioned response procedure. The FM tones swept from 150 to 275 Hz or from 150 to 550 Hz. The frequency of the pure tone was either 275 or 550 Hz. The results showed that infants were slightly, but significantly, more sensitive to the sounds that included 550 Hz than they were to the lower frequency sounds, whether or not the sound was frequency modulated. It appears that infants could be somewhat more sensitive to infant‐directed than to adult‐directed speech, not because of FM per se, but because the fundamental frequency excursions in infant‐directed speech extend into a higher frequency range than those in adult‐directed speech.  相似文献   
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This article discusses general issues and concerns relative to the adaptation of paper-pencil assessment instruments to computerized formats. The computerized form of the Self-Directed Search is described and evaluated. Strengths and weaknesses of the SDS-CV are presented and recommendations regarding its use are discussed. In that additional research is needed regarding the reliability and validity of scores attained on the computerized SDS, we concluded that information from this version of the instrument should be interpreted cautiously. The computerized SDS, however, has the potential of becoming a useful instrument in the career counseling field.  相似文献   
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