环境基因组计划(EGP)对预防医学发展的影响

1998年美国正式启动环境基因组计划,该计划旨在探讨环境－基因的交互作用,寻找对环境因素损伤的易感基因及环境反应基因的多态性在疾病病因和发病过程中的作用,因而该计划的实施将对预防医学的发展产生重要的影响。     

A Cross-National Comparison of Nationalism in Austria, the Czech and Slovac Republics, Hungary, and Poland

The transition to democracy in Eastern Europe after the breakdown of communist regimes was challenged by ethnic and national tensions. Nationalist sentiments and traditional patterns of ethnic intolerance were almost immediately revitalized. The analysis presented here concerns nationalist orientation in several of these countries in the context of ideology and social origin, which form links among nationalist identification, ethnic intolerance, democratic and economic orientation, and social class position. In 1996, representative national surveys were carried out in Hungary, the Czech and Slovak republics, and Poland. The study was then extended to Austria, where, like in other Western democracies, nationalistic, xenophobic, and rightist-radical attitudes have emerged. Analyses of the attitude structures (structural equation models) showed that different types of nationalism have developed. In post-communist countries—with the exception of the Czech Republic—anticapitalist feelings are strongly correlated with nationalism and ethnic intolerance. Such attitudes are held by the lower classes, yet this form of antiliberalism is not directed against democracy. In Austria, a classical "underclass authoritarianism" exists but remains independent of economic ideology. This is typical of the "new right" in Europe: a "modernized" brand of fascism in which neoliberal ideology, instead of anticapitalist resentments, is combined with traditional value patterns.     

Completeness of Certain Bimodal Logics for Subset Spaces

Subset Spaces were introduced by L. Moss and R. Parikh in [8]. These spaces model the reasoning about knowledge of changing states.In [2] a kind of subset space called intersection space was considered and the question about the existence of a set of axioms that is complete for the logic of intersection spaces was addressed. In [9] the first author introduced the class of directed spaces and proved that any set of axioms for directed frames also characterizes intersection spaces.We give here a complete axiomatization for directed spaces. We also show that it is not possible to reduce this set of axioms to a finite set.     

Achievement goal orientations and motivational outcomes in youth sport: The role of social orientations

ObjectivesSocial goal orientations, which reflect ways of conceptualizing competence in terms of social relationships with others, have been researched minimally in the physical domain. While the relationship between task and ego orientations and motivational outcomes has been well-studied, the link of friendship, group acceptance, and coach praise orientations with enjoyment, perceived physical competence, and intrinsic motivation warrants further study.MethodMale and female middle-school students (N = 303) completed questionnaires assessing task, ego, coach praise, friendship, and group acceptance orientations; enjoyment; perceived physical competence; and motivation. Two approaches to data analysis (variable-centered, person-centered) examined whether social orientations were significantly related to motivational outcomes among adolescents.ResultsVariable-centered analysis (i.e., canonical correlation) showed that social orientations were related to enjoyment, perceived physical competence, and intrinsic motivation. Person-centered analyses (i.e., cluster analysis, MANOVA) classified participants with similar patterns of goal orientations and then compared the emergent groups on motivational outcomes. Participants who defined success using either higher task, ego, and social goal orientations or higher friendship and lower ego orientations reported the most adaptive responses (higher perceived competence, enjoyment, and intrinsic motivation).ConclusionsSocial orientations in sport are important to consider alongside task and ego orientations in research stemming from achievement goal theory. Defining success or competence in terms of social relationships can have positive motivational benefits in sport.     

Nominal analysis of “variance”

Nominal responses are the natural way for people to report actions or opinions. Because nominal responses do not generate numerical data, they have been underutilized in behavioral research. On those occasions in which nominal responses are elicited, the responses are customarily aggregated over people or trials so that large-sample statistics can be employed. A new analysis is proposed that directly associates differences among responses with particular sources in factorial designs. A pair of nominal responses either matches or does not; when responses do not match, they vary. That analogue to variance is incorporated in the nominal analysis of “variance” (Nanova ) procedure, wherein the proportions of matches associated with sources play the same role as do sums of squares in an anova . The Nanova table is structured like an ANOVA table. The significance levels of the N ratios formed by comparing proportions are determined by resampling. Fictitious behavioral examples featuring independent groups and repeated measures designs are presented. A Windows program for the analysis is available.     

Process and content in a long-term PTSD therapy group for Vietnam veterans

Process and content were studied in four 16-session segments of a psychodynamically oriented therapy group for Vietnam veterans suffering from posttraumatic stress disorder (PTSD). On the Group Climate Questionnaire (GCQ-S), the group scored significantly higher in the Engaged dimension and significantly lower in the Avoiding and Conflict dimensions than contrasting samples of neurotic and psychotic groups. There was no evidence of group stages. Topics related to symptoms of PTSD were discussed most frequently (43.1%), followed by issues concerning relations with others (32.4%),general group therapy issues (13.7%), and other topics (10.8%). Clinical implications of these findings are discussed.The authors thank Tom Metzler, M.A., and Heidi Ronfeldt, B.S., for their assistance with the data analysis.Parts of this paper were presented at the American Group Psychotherapy Association Annual Meeting, February 15–20, 1993, San Diego, CA.     

Inflection,frequency, and the word superiority effect

Summary It has been known for nearly 100 years that single words presented tachistoscopically are better recognized than arbitrary letter strings. The present experiments investigate the impact of the morphological structure of words and of word frequency on the word superiority effect. It has been shown that inflected word forms show higher reaction time and error scores in the lexical decision task and higher error scores in the Reicher-Wheeler paradigm. Word frequency also determines lexical decision time. However, no frequency effect in the Reicher-Wheeler paradigm could be found. The results are discussed in the framework of McClelland and Rumelhart's (1981) model of context effects in letter search.This paper is mainly (Experiments I and III) based on the first author's Habilitationsschrift from October, 1982 (cf. Günther 1983a).