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71.
72.
73.
We give a detailed account of the Algebraically Closed and Existentially Closed members of the second Lee class B
2 of distributive p-algebras, culminating in an explicit construction of the countable homogeneous universal model of B
2. The axioms of Schmid [7], [8] for the AC and EC members of B
2 are reduced to what we prove to be an irredundant set of axioms. The central tools used in this study are the strong duality of Clark and Davey [3] for B
2 and the method of Clark [2] for constructing AC and EC algebras using a strong duality. Applied to B
2, this method transfers the entire discussion into an equivalent dual category X
2 of Boolean spaces which carry a pair of tightly interacting orderings. The doubly ordered spaces of X
2 prove to be much more readily constructed and analyzed than the corresponding algebras in B
2. 相似文献
74.
Attributions for dietary failures: problems reported by participants in the Hypertension Prevention Trial 总被引:1,自引:0,他引:1
Assigned participants in the Hypertension Prevention Trial to one of four diets for a period of 3 years: (a) weight loss, (b) reduced sodium, (c) weight loss plus reduced sodium, and (d) reduced sodium plus increased potassium. At 6-month intervals, they reported problems they were having adhering to their diets. Problem attributions were coded along the dimensions of internality, stability, and controllability and were categorized as intrapersonal or extrapersonal. Attributions were found to differ by type of diet and sex of participant. Participants assigned to weight-loss groups were significantly more likely than those assigned to non-weight-loss groups to blame themselves for their problems with adherence, making characterological as opposed to external or situational attributions. Men perceived problems to be more controllable than women. Attributions did not predict weight loss, change in urinary sodium, or change in potassium excretion. 相似文献
75.
76.
Preventing weight gain in adults: a pound of prevention 总被引:3,自引:0,他引:3
This study evaluated the feasibility and effectiveness of a program for weight gain prevention in normal-weight adults. Two hundred nineteen participants were randomized to either weight gain prevention treatment or no treatment for a period of 12 months. Those in the treatment group received monthly newsletters relating to weight management, participated in a financial incentive system, and were offered an optional four-session education course in the sixth month of the program. Results demonstrated high interest in weight gain prevention among individuals who were not objectively overweight. Participation, as measured by return of postcards sent with each newsletter, was approximately 75%. Results after 1 year showed a net weight loss in the group receiving the program of 1.8 lb compared to those in the control group. Eighty-two percent of program participants maintained or lost weight, compared to 56% of the control group. It is concluded that programs for weight gain prevention are feasible in adults and may be more effective than weight loss treatment programs in addressing the problem of community-wide obesity. 相似文献
77.
This paper examined the interrelation between social support and coping in a longitudinal study of 380 clinically depressed individuals. A two-wave, two-variable panel analysis revealed that connections between support and coping varied by gender and across the specific sources of support and modes of coping examined. In the family context, increases in support were related to increases in problem-solving coping among women and to a decline in emotional discharge coping among men. In the work context, increases in social support were related to a greater reliance on affective regulation among women and to more information/support seeking among men. Overall, the results suggest that specific aspects of support and coping processes jointly mediate the link between stress and adjustment among depressed individuals. 相似文献
78.
Fred Rist Wolfram Baumann Rudolf Cohen 《Integrative psychological & behavioral science》1981,16(1):8-17
Chronic schizophrenics under neuroleptic medication were compared with normals, matched for age and education, in two conditioning experiments. Both experiments employed a differential paradigm with long conditional stimulus-unconditional stimulus (CS-UCS) intervals. Skin resistance (SR) and finger pulse or heart rate (HR) were recorded. In Experiment 1, half of the subjects were trained in categorizing the to-be conditional stimuli. In a further step, half of the subjects were informed about the CS-UCS contingency. The UCS was an electric shock. Information improved discrimination of SR responses only of normals, and discrimination training had no effect at all on autonomic responses. In Experiment 2, only electrodermal responders were included. Each subject was tested in two sessions, using a loud tone as UCS in one, and a reaction time signal in the other. Again, half of the subjects were informed about the contingency. Information improved discrimination of SR responses of both diagnostic groups. Decelerations of HR following CS onset showed informed schizophrenics to discriminate better with the loud tone UCS than with the reaction time signal. General autonomic responsivity seems to determine not only discriminative conditioning of schizophrenic patients but also the reports of awareness and the effects of manipulations of awareness. However, when subjects are matched for electrodermal responsivity and are equivalent in terms of SR response conditioning, patients react to information about the contingency with enhanced HR deceleration to the CSs, possibly reflecting a heightened sensitivity of the cardiovascular system. 相似文献
79.
80.
The present study was designed to map out the area of research in experimental social psychology during the past decade. First of all, we found a broad range of topics that can be grouped info 21 general content domains. Theories in Social Psychology, Group Processes and Social Interaction, Social Judgement, Personality Variables and Specific Social Behaviour as well as Attitudes were the jive most widely researched fields of study. During the ten-year period 1971–1980 Attribution Theory showed a significant increase in the number of articles published. Cooperation and Conflict as well as Risky-Ship are lines of research which have nearly been abandoned. Finally, in rigorous experimental social psychology the analysis of Social Problems is evidently underrepresented. But a survey of the literature on Social Problems in the Psychological Abstracts from 1971 to 1980 revealed that social psychologists are currently serving both theoretical and practical ends. 相似文献