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371.
Mael A. Melvin 《Synthese》1982,50(3):359-397
A survey is given of the concepts of interaction (force) and matter, i.e., of process and substance. The development of these concepts, first in antiquity, then in early modern times, and finally in the contemporary system of quantum field theory is described. After a summary of the basic phenomenological attributes (coupling strengths, symmetry quantities, charges), the common ground of concepts of quantum field theory for both interactions and matter entities is discussed. Then attention is focused on the gauge principle which has been developed to describe all interaction fields in the same way, and hopefully to unite them all into one unified field. While a similar unification of all fundamental types of matter fields (quarks and leptons) into one family may be possible (SU 5), there still remains at this level a duality between interaction quanta (bosons with spin 1) and matter particles (fermions with spin 1/2). Whether this duality may be removed in some future supersymmetric theory is not discussed in this paper. Nor is Quantum Gravitation discussed, though the analogy of the gauge principle for the three fundamental non-gravitational interactions (hadronic, electromagnetic and weak) to Einstein's principle of equivalence for gravitation in spacetime is noted. However, the equivalence concept is applied not to spacetime but to the internal spaces for the matter (or charge) fields which are the sources between which the fundamental interactions operate. The gauge principle states that a change in the measures of the internal space charge of gauge or phases of the matter fields is equivalent to, and can be compensated by, suitably introduced interaction fields. From such an interaction field, the gauge potential field in the internal space, one may derive a gauge force field by exterior differentiation.Geometrically, the collection of all internal spaces, one over each point of spacetime, constitutes a fiber bundle. The gauge potential field represents a connection on the fiber bundle, and the gauge force field is the curvature (calculated by taking the exterior derivative of the connection and adding to it the exterior product of the connection with itself). Thus, just as gravitational force is interpreted as spacetime curvature, so the three other fundamental forces are interpretable as internal space curvature. The Standard Model which unites the three non-gravitational fields into an SU c 3 ×SU 2×U 1 structure, and the grand unified model, SU 5, are discussed briefly, and difficulties are noted. Finally it is suggested that a composite model, based on more subtle structure, may be needed to remove the present obscurities and difficulties that stand in the way of a unified theory.  相似文献   
372.
After watching a simulated rape trial, prerecorded on videotape, mock jurors either did or did not expect to sentence a defendant following deliberation with or without a group verdict required. Both sentencing expectation and verdict requirement significantly elevated jurors' preference for conviction (and average ratings of guilt likelihood). Closer analyses of personal changes (before and after deliberation) in the distribution of opinions suggested that majorities favoring not guilty were more influential than guilty-favoring majorities; and, somewhat unexpectedly, minorities in juries which deliberated without a verdict required were more likely to change personal opinions than minorities in juries required to render a verdict. The overall social decision scheme confirmed earlier observations about the importance of the initial majority in determining the verdict; but the majority did not always prevail and there was a marked asymmetry (“defendant protection”) in its action.  相似文献   
373.
Seventy-nine children, nine or eleven years old, classified as reflective or impulsive by the Matching Familiar Figures (MFF) test, were observed in public school classrooms. A total of 15 behavioral categories were selected to capture activities often labeled “reflective” or “impulsive” in the literature. Children were observed in each of three classroom settings—Individual Work, Large Group instruction, and Small Group instruction. Thirty minutes of observational data on each child revealed substantial differences in the behavior of older and younger children and across the three settings. By contrast, there was only a minor difference in the behavior of reflective and impulsive children. These results suggest that the concept of reflection-impulsivity, as operationalized by the MFF, should be limited to tasks that involve response uncertainty, and should not be used to imply differences in the typical classroom behavior of children classified as reflective or impulsive by the MFF.  相似文献   
374.
The appearance of heroic motives in interpersonal relations is examined. Three experiments were conducted to test the general hypothesis that witnessing the victimization of a partner would impel young men to incur costs in order to confront the transgressor. In each experiment, either the individual, his partner, or an anonymous other was insulted. Experiments 1 and 2 revealed that individuals were most willing to confront the insulter when their female partners (Experiment 1) or their male teammates (Experiment 2) were victimized. That pattern occurred despite evidence indicating that the most negative affective reactions were experienced by individuals who had been directly insulted. Experiment 3 revealed that individuals were also more willing to perform a subsequent altruistic act in response to the victimization of their partners than when they or an anonymous other person had been victimized. Taken together, the results indicated that heroic motivations in response to the victimization of a partner were distinguishable from other more negatively oriented processes that were aroused in response to self-victimization by the insulter.  相似文献   
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377.
A Time-Series Diary Study of Mood and Social Interaction   总被引:1,自引:0,他引:1  
Based on concomitant time-series analyses, the results of this study support distinct social interaction correlates for the mood dimensions of negative affect (NA) and positive affect (PA). Participants (N = 25) completed structured diaries three times daily for 4 weeks assessing their PA, NA, and participation in five types of social interaction. A significant number of participants' data series evidenced significant positive correlations between PA and fun/active and necessary/informational types of social interaction, and between NA and arguing/confronting and receiving help/support, during synchronous diary periods. Providing help/support was not related to NA or PA. No hypothesized time-lagged relations between mood and social interaction variables were present suggesting that, if these associations exist, they may be at intervals shorter than the one third day recording frequency used in this study. Results are discussed in the context of research on mood, social interaction, and time-series analysis.  相似文献   
378.
Theories of social categorization were used to generate hypotheses concerning the impact of drug involvement on the attitudes and knowledge structures that people use in making drug-related judgments. Data indicated that greater drug exposure tended to foster more complex knowledge structures for drugs and drug users as revealed by subjects’ perceptions of drug users, tolerance for drug use, and perceptions of drug seriousness. Basically, high drug involvement in terms of personal alcohol use and associating with illicit drug users was related to greater individuation of drug user types. Therefore, high-involved subjects, relative to low-involved individuals, were better able to discriminate between different drug user subtypes and drug user subtypes were more important to high-involved subjects when responding to drug-related survey items.  相似文献   
379.
The epidemic of HIV/AIDS has resulted in an increasing population of individuals in need of counseling services: persons living with AIDS, as well as family, friends, and caregivers. The relationship between HIV/AIDS clients' counseling and spiritual issues is demonstrated by a review of salient literature. Three broad themes are used: terminal illness issues such as post-death existence and existential meaning of life, religious disenfranchisement from society or families of origin, and multicultural spiritual and religious issues. Practical recommendations for counselors and research implications are included.  相似文献   
380.
The purpose of the study was to pilot a family centred brief solution-focused therapy model (BSFT) with families and clients diagnosed with schizophrenia. A control group of clients and their families received traditional outpatient therapy, while an experimental group of clients and their families were treated with a BSFT model. All participants were pre-tested and then post-tested with the Family Environment Scale after five therapy sessions over a ten-week period. Significant differences between the groups were found on expressiveness, active-recreational orientation, moral-religious emphasis and family incongruence. The participation of families and clients with schizophrenia in family centred brief solution-focused therapy produced encouraging results and demonstrated the need for expanded studies using BSFT with other chronically mentally ill clients and their families.  相似文献   
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