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81.
ABSTRACT

In this study we addressed the subjective benefits of activity interventions that were designed to improve cognitive fitness in old age. Two hundred and fifty-nine women (aged 70–93 years) were randomized to participate in an exercise or a computer course or a control condition for 6 months. Subjective ratings of the perceived change of cognitive and physical fitness components were captured before, during, after the intervention interval, and at a 10-month follow-up. Positive and negative affect levels and objective cognitive fitness parameters served as possible covariates. Multilevel modeling revealed that the computer group rated memory and concentration as having improved at 4 months and again at 6 months. The exercise group, in contrast, perceived physical capacities as maintained or improved. The characteristics of the activity experience seem to determine the perceived fitness changes. We conclude that actual learning experiences improve one's self-concept of abilities.  相似文献   
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The objective of the study was to determine the relationship between work stress, work-home interference, and perceptions of organisational culture amongst insurance employees in the Zimbabwean context. Data were collected from a sample of 190 employees (females=46%) who completed the Occupational Stress Inventory-Revised (OSI-R), the Work-Home Interference Questionnaire (SWING), and the Organisational Culture Index (OCI). Data analysis consisted of correlational and standard multiple regression analyses. The results revealed significant positive correlations between the sub-scales Role Overload, Role Insufficiency, Role Ambiguity, Role Boundary, Responsibilities, and Physical Environment of the OSI-R, the sub-scales Positive Work-Home Interference and Negative Work-Home Interference of the SWING, and the sub-scales Bureaucratic, Innovative and Supportive Culture of the OCI. These findings contribute to new knowledge in terms of the work stress experienced by insurance employees who are always under continuous pressure from the industry. Furthermore, it could be used to gain insight to enhance the work-life balance of insurance employees and the effect of organisational culture as perceived by insurance employees.  相似文献   
84.
This study investigated whether a computer-based self-regulation intervention increases physical exercise in individuals with or without depressive symptoms. A total of 361 individuals in orthopedic rehabilitation, 36 of them with depressive symptoms, were recruited in Germany. In a quasi-experimental study, individuals were allocated to either a computer-based self-regulation intervention or an online questionnaire. Exercise was measured at the beginning of rehabilitation and six weeks after rehabilitation. Depressive symptoms were assessed at the end of rehabilitation. An analysis of covariance was conducted, controlling for exercise baseline, sex, and phase of assessment. A main effect for depressive symptoms (p = .005) and intervention group (p = .011), as well as a marginal interaction of intervention x depressive symptoms were found (p = .076). Results indicate that the self-regulation exercise intervention in an orthopedic rehabilitation setting seem to be only effective in non-depressed individuals. Future research should examine how health behavior change programs can be designed more effectively for individuals with depressive symptoms.  相似文献   
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Using a Vygotskian theoretical framework and a social interaction design, we observed 30 middle-class North American mother–child dyads engaged in a location memory activity. The central aim of this investigation was to assess maternal and preschool strategy use employed during a memory for location task, and to determine which strategies are associated with preschooler accuracy of memory for location of objects. Results suggest that mothers are more apt to utilize labelling, encouragement, and guidance as opposed to location-specific assistance to their child during the task, and children are more apt to link the memory information to their real-life experiences, request help for assistance, and utilize self-regulatory speech. Implications of the research, suggestions for future research, and expansions of theoretical perspectives on the role of social interaction on preschool location memory performance, and educational implications are discussed.  相似文献   
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Executive functions (EF) are crucial for the athletes’ success, and they are even more essential in open skill sports (e.g. volleyball and football). In these sports, due to continuously changing conditions, goal-directed behaviours need to be repeatedly adjusted and corrected. One of the most important EF is the ability to continuously switch between two different tasks being required in a random sequence. We used a task-switching protocol in elite volleyball athletes, usually playing different roles, with the aim of evaluating if each role is characterized by specific switching abilities. On the basis of the specific competences requested by the game, thirty-six elite volleyball athletes were assigned to three groups: Strikers, Defenders and Mixed. Each player completed a customized sport-specific task-switching paradigm. Data evidenced that each role has specific characteristics. In Reaction Times, the Strikers were the fastest to answer to stimuli, while the Defender group provided a worse performance, particularly when defensive actions, that probably require more cognitive elaboration, had to be processed. Different effects emerged by the Errors. In fact, the Mixed group, which was the one with more expertise, appeared to be more accurate in the responses.Although preliminary, these results showed a minimal degree of cognitive flexibility for highly specialized Strikers and a maximum level for Mixed, allowing thus to highlight specific profiles of athletes. Data observed indicate the possibility to develop a test assessing the executive domain during the recruitment in a team, revealing a useful tool for choosing the most suitable role.  相似文献   
89.
This essay discusses three recent books which each offer an integrative account of religious ethics and the environment. Religious environmental ethics is an area of inquiry within the larger field of religion and ecology. After a narrative that contextualizes the development of religious environmental ethics in relation to the environmental social movement, I describe the formation of the field including its focus on worldview, the “cosmological turn,” and its engagement with science, the “cosmic turn.” Elizabeth Johnson exemplifies the cosmic turn by developing a Christian theology of life in nature which explicitly accepts Darwin's theory of evolution. Willis Jenkins advocates a prophetic pragmatism and critiques a focus on worldview that is abstracted from practice and defers moral responsibility. Larry Rasmussen joins analysis of worldview with reflection on cross‐cultural resources for “anticipatory communities” of moral formation to catalyze change. I argue with Rasmussen that religious environmental ethics needs multiple approaches and should allow room for methodological pluralism.  相似文献   
90.
Hagger (2019) offers an insightful synthesis of recent theoretical and empirical developments in understanding of habit and its relevance to physical activity. This commentary extends coverage of one such advance, namely the distinction between two manifestations of habit in physical activity: habitually ‘deciding’ to engage in activity (i.e. habitual instigation), and habitually ‘doing’ the activity (habitual execution). We explore the rationale for this distinction and argue that most contemporary theory and evidence around habitual physical activity – and by extension, Hagger’s review – implicitly focuses on instigation and neglects execution. We offer hypotheses around the potential roles that habitual execution may play in physical activity. Broadening the scope of inquiry within the field to more fully encompass habitual performance would achieve a more comprehensive and informative account that incorporates concepts of skill acquisition and mastery.  相似文献   
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