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221.
Differential sensitivity was measured before and after smoking a cigarette by 10 smokers, using 10 nonsmokers as controls. Stimuli consisted of reagent grade ethanol in eight concentrations ranging from 4% to 12%. No significant differences were observed between smokers and nonsmokers or before vs after smoking, although slightly higher overall correct responses and correspondingly smaller jnds were obtained for the nonsmokers. No practice affects were noted among the control group between the first and second set of samples. The findings confirm previous results which had been recently questioned.  相似文献   
222.
The American term Bioethics has been adopted over the last ten years and the development of Bioethics committees on the American model testifies this influence, even before the official appointment of a National Committee in 1983. This phenomenon acknowledged as the “emergence of French bioethics” is in fact the final outcome of a long-lasting crisis in the medical profession, in quest for a new style of ethics, breaking with the traditional professional ethics (French Déontologie, through the Ordre des Médecins). Among other factors of conceptual and institutional change, the increase of biomedical research comes first: a major consequence is the sharing of moral responsibilities in decision-making with outsider scientists and finally the involvement of the whole population as potential moral subjects. The designation of these events as the emergence of French bioethics is hardly appropriate for an account of this dramatic shift in ethical norms and roles in medicine. This paper attempts to review the intellectual roots of the recent evolution and to summarize present and prospective trends.  相似文献   
223.
The purpose of this study is to analyse the specificity of interactions between preschool friends, whose relationships are built on a voluntary and stable choice of a particular partner. The sample consisted of 18 unisexual triads of children aged 3 to 4 years (9 male and 9 female) from 5 Parisian kindergarten. These triads were compared with 18 others, composed of children aged 4 to 5 years (9 male and 9 female), from a previous study (Werebe et Boudonnière, in press). Each triad was composed of a dyad of friends plus a third familiar partner, all three classmates. The dyads of friends were selected on the basis of the following criteria: (1) a reciprocal and preferential search for one another; (2) a voluntary choice of the friend, without intervention from parents or teachers. The children were videotaped without their knowledge, without adult presence, in a familiar room of their school. The experimental setting was standardized in each of the 5 schools. The experimental paradigm was a variant of the one created by Nadel and Baudonnière (1980, 1982), with an important modification: the ten categories of matching objects were provided in double sets for the three children. Four indices were used for the data analysis: holding and appropriation of objects; offering of objects; competition to hold objects and verbalizations. The findings confirmed the principal hypothesis: that interactions between friends differ from those with the third partner, in both age groups, quantitatively (density of interactions) and qualitatively (reciprocal offerings and verbal communications). Furthermore, the findings revealed that the younger children had more difficulty than the older ones, to manage the triadic situation, especially in this situation with the constraint imposed by the presence of two sets of matching objects for three partners.  相似文献   
224.
This study assessed how ratings of the importance of contraceptive attributes varied with gender, age, relationship status, and contraceptive method usually used. In a classroom setting, 210 male and 217 female university students completed the 55-item Contraceptive Attribute Questionnaire (CAQ). Significant differences on importance ratings were found between women and men, age groups, women using barrier methods and women using the pill, and by relationship status. The underlying dimensions of the CAQ were investigated through factor analysis, and somewhat different factors emerged for men and women. Implications for the provision of family planning services to college students are discussed.  相似文献   
225.
Job Evaluation and Gender: The Case of University Faculty   总被引:3,自引:0,他引:3  
This study examined the effects of students' and professors' sex on student evaluations of professors' teaching effectiveness. Ratings of over four hundred faculty made by over nine thousand students were analyzed. After controlling for a large number of variables, the main results showed that (a) male faculty were given significantly higher evaluations on global teacher effectiveness and academic competence than female faculty; (b) when controlling for extraneous variables, female faculty were not found to be rated as more sensitive to student needs than male faculty; and (c) when making overall, global judgments of faculty performance, students seem to place more weight on academic competence for male faculty than for female faculty.  相似文献   
226.
Sixty-eight 2-and 3-year-olds (46 parent-referred, 22 controls) participating in an identification, assessment, and follow-up study of hyperactivity and related behavior problems were evaluated on parent-report, observational, and cognitive measures. Referred youngsters were described by both parents as more active, inattentive, difficult to discipline, and aggressive with peers than were controls. Mothers of referred children also reported a more difficult infancy period. Laboratory assessments confirmed parental reports of current problems. Referred children shifted activities more during free play, were more active and inattentive during structured tasks, and made more impulsive responses on a delay task than did controls. Discriminant function analysis indicated that parental ratings of activity paired with laboratory measures of sustained attention and impulsivity correctly classified 88% of the sample. These data suggest that the core symptoms of hyperactivity can be identified in very young children, although their prognostic significance remains to be determined.This research was supported by Grant No. R01 MH 32735 from the National Institute of Mental Health to the first author. Thanks are due to the parents and children who participated so enthusiastically in this study. The dedication of Patricia Cluss is gratefully acknowledged. Mady Fingeret, Frank McKee, Jenny Palermo, Susan Riley, Elizabeth Schaughency, Sheree Thomas, and Russell Walters are also thanked for their help in data collection.  相似文献   
227.
Suspension removes a troublesome pupil from school but it merely relocates the problem and does nothing to teach him/her new coping behaviours. This paper is an account of how a behaviour-modification programme, systematic exclusion, was implemented as an alternative to suspension, with a pupil whose classroom behaviour was extremely disruptive. It outlines how, in this particular case, the difficulties of implementing such a programme in a secondary school were overcome.  相似文献   
228.
This paper contrasts two kinds of relations among spoken syllables. One relation is based on a single common phoneme; the second is based on overall similarity of whole syllables. On the basis of recent studies with multidimensional visual stimuli, we hypothesized that preliterate children respond primarily to overall similarity relations among syllables, whereas literate adults respond primarily to common phoneme relations. These hypotheses were tested in two experiments using spoken syllables. Experiment 1 investigated the classification of syllables by preliterate children (mean age: 4 years 4 months) and college students. Experiment 2 studied the memory confusions among syllables by children (mean age: 4 years 8 months) and college students. The results of both experiments suggest that overall similarity relations are primary for preliterate children, while common phoneme relations are primary for adults. Moreover, children's limited use of common phoneme relations is not confined to tasks that require explicit judgments about language. Implications for the learning of reading are discussed.The work reported here formed a portion of the first author's doctoral dissertation submitted to the University of Pennsylvania. It was supported by Grant MH29453 to J. Baron and a Biomedical support grant through Indiana University to R. Treiman. We thank the children and teachers of the University of Pennsylvania Children's Center for their cooperation. Jonathan Baron, David Pisoni, Francis Ganong, Lila Gleitman, Kathy Hirsh-Pasek, Burton Rosner, Linda Smith, and Amanda Walley gave valuable comments on earlier versions of this paper.  相似文献   
229.
Five experiments are described on the processing of ambiguous words in sentences. Two classes of ambiguous words (noun-noun and noun-verb) and two types of context (priming and nonpriming) were investigated using a variable stimulus onset asynchrony (SOA) priming paradigm. Noun-noun ambiguities have two semantically unrelated readings that are nouns (e.g., PEN, ORGAN); noun-verb ambiguities have both noun and verb readings that are unrelated (e.g., TIRE, WATCH). Priming contexts contain a word highly semantically or associatively related to one meaning of the ambiguous word; nonpriming contexts favor one meaning of the word through other types of information (e.g., syntactic or pragmatic). In nonpriming contexts, subjects consistently access multiple meanings of words and select one reading within 200 msec. Lexical priming differentially affects the processing of subsequent noun-noun and noun-verb ambiguities, yielding selective access of meaning only in the former case. The results suggest that meaning access is an automatic process which is unaffected by knowledge-based (“top-down”) processing. Whether selective or multiple access of meaning is observed largely depends on the structure of the ambiguous word, not the nature of the context.  相似文献   
230.
Laterally displaced line drawings and the words which name these drawings were tachistoscopically presented to adult subjects. For words, as expected, a right visual field-left hemisphere advantage was obtained. For line drawings, in contrast to previous studies which have typically reported a right visual field-left hemisphere advantage, no visual field asymmetry was found. The absence of a visual field asymmetry for line drawings is consistent with reports of a shift toward greater right hemisphere involvement in the recognition of pictographic as compared to phonetic writing systems and concrete/imageable words as compared to abstract/nonimageable words. Further, the present results seem consistent with findings on picture recognition and naming abilities in brain-damaged patients.  相似文献   
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