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991.
992.
The existing literature on Distributed Cognition (DCog) mostly presents the temporal distribution of cognition in terms of system evolution that happens over time. In this paper, we illustrate how cognition can also be distributed through time in more immediate ways, through four principles we developed while studying how renal patients cope with the complexity of home hemodialysis. These principles are temporal assignments to tasks to aid prospective remembering; temporal arrangement of tasks to help deal with anticipated problems; temporal distribution of a task plan to avoid omission of steps; and temporal re-arrangement of tasks to reduce peak complexity. Like the physical environment, the time continuum is an external medium that can support distributed cognitive processes, serving as a representation for task reminders and allowing actors to organize the order, duration, and spacing of tasks to reduce complexity in cognitive work. These principles can highlight problems and opportunities in the design of socio-technical systems, by explicitly considering time as another medium that can be used to support DCog in short-term activity. 相似文献
993.
994.
Ann Delligatta 《Information Systems Management》1992,9(3):63-64
Regardless of what many in the IS department may think, the applications backlog can be significantly reduced if users are encouraged to take responsibility for some of their applications. The key to success lies in the IS manager's ability to empower the users, which can be done only with proper training, not by dumping all the work on the users and then abandoning them. 相似文献
995.
Franks Melissa M.; Stephens Mary Ann Parris; Rook Karen S.; Franklin Barry A.; Keteyian Steven J.; Artinian Nancy T. 《Canadian Metallurgical Quarterly》2006,20(2):311
The authors examined spouses' provision of health-related support and control as predictors of health behavior and mental health among patients participating in cardiac rehabilitation (N = 94 couples). Cross-sectional analyses revealed that spouses' support was positively associated with patient health behavior. Prospective analyses of change over 6 months (N = 65 couples) revealed that spouses' support predicted increased patient mental health, whereas spouses' control predicted decreased patient health behavior and mental health. Findings suggest that spouses' efforts to facilitate patients' healthy lifestyle behaviors are associated with patients' health behavior and mental health, but not always as spouses might intend. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
996.
Articles presented in this 1987 APA symposium adopt a stress, appraisal, and coping framework for conceptualizing the experience of family caregiving. Each article emphasizes 2 themes: (a) caregivers' adaptation to the chronic demands of in-home caregiving and (b) factors that mediate the relationship between caregiving stress and caregiver's adaptation. The articles presented in this symposium illustrate both the utility of this theoretical approach to studying caregiving stress and the difficulty inherent in its use. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
997.
Evaluated 2 measures of cognition in depression, an automatic thoughts questionnaire (ATQ) and the Dysfunctional Attitudes Scale (DAS), for sensitivity and specificity in a series of diagnostically distinct clinical outpatients. The 69 Ss were divided among the following diagnoses: bipolar disorder, depressed; unipolar disorder, depressed; substance abuse, depressed; substance abuse disorder; and general psychiatric disorder. Findings show that both measures covaried with syndrome rather than nosological depression, and the ATQ, but not the DAS, evidenced good specificity. (35 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
998.
In an effort to understand how computer-assisted design (CAD) can be optimized in an organizational setting, perceptions and attitudes of CAD users about their jobs and workplace are compared with those of non-users. Results indicate that the implementation of CAD may not result in the expected benefits if CAD is not appropriately managed. Job unpredictability, job autonomy, and job interdependence are three areas in particular needing management attention if CAD benefits are to be achieved. 相似文献
999.
Brook Judith S.; Whiteman Martin; Gordon Ann S.; Cohen Patricia 《Canadian Metallurgical Quarterly》1986,22(3):403
Examined the relative impact of childhood and adolescent personality/behavioral attributes on the adolescent's stage of drug use. Mothers of 356 youngsters were interviewed concerning their child's personality, behavior, development and childrearing techniques, family structure, family health, and demographics when the child was 5–20 yrs of age (Time 1 [T1]) and again when the child was 13–18 yrs old (Time 2 [T2]). Adolescents also completed a self-report questionnaire concerning their personalities, behavior, and drug use at T2. As hypothesized, findings support a mediational model as best depicting the interrelation of the domains of childhood and adolescent personality and stage of drug use. Childhood personality attributes were related to adolescent personality attributes, which in turn were related to adolescents' stage of drug use. Across-time personality correlations suggested that substantial continuity exists in personality traits. However, there was also some evidence for the malleability of these traits. Results suggest the positive effects of protective (i.e., nondrug-conducive) personality traits in children can be weakened by the presence of risk factors during adolescence, leading to higher T2 drug stage, and that the negative impact of childhood risk personality traits can be ameliorated by protective personality traits during adolescence, resulting in lower drug stage. (48 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
1000.
The inherent ambiguity question for context-free languages is shown to be in the Turing degree of unsolvability O”. The method used is to show that the inherent ambiguity question is equivalent to the finiteness question for r.e. sets which is in degree O”. The proof associates a context-free language with each Turing machine. The language has a natural closed-form definition in terms of the Turing machine. The associated language is inherently ambiguous precisely iof the Turing machine accepts an infinite set. 相似文献