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201.
The purpose of the current study was to assess the utility, feasibility, and reliability of Fitbit accelerometers to measure physical activity (via steps) of 15 young children simultaneously during recess. Fitbit-recorded steps per minute (SPM) were used as the primary measure to assess levels of activity in children playing in various structured (i.e., instructed) and unstructured (i.e., free play) recess activities. The results suggested that the number of steps measured by two Fitbits resulted in high levels of agreement, and the Fitbits were successful at identifying differential levels of activity across multiple types of play activities. Across all children, running or walking was associated with the most SPM (M = 89) and highest percentage of moderate-to-vigorous physical activity (MVPA; M = 47%), followed by soccer (M = 58 SPM; M = 12% MVPA), free play (M = 53 SPM; 3% MVPA), and tag (M = 43 SPM; 7% MVPA). The utility of the Fitbit’s minute-by-minute data records was demonstrated, with the use of additional third-party software by Python, as differential levels of physical activity associated with various play behaviors were detected, and all 15 participants were assessed simultaneously with very few observers.  相似文献   
202.
There has been an upsurge of interest in compressed workweek schedules because of the opportunities they provide for enhanced organizational efficiency and more balanced work and life roles for employees. This study tested a moderated mediation model of the effects of compressed work hours satisfaction on absenteeism with the purpose of exploring both the mediation effects of emotional exhaustion and physical health and the moderating effects of sex on this relationship. It utilized data drawn from a sample of 236 contact-centre service workers linked to absenteeism data collected for a period of 12 months following the survey. Results indicated that compressed work hours satisfaction was associated with lower absenteeism and that this relationship was mediated sequentially through emotional exhaustion and physical health. Although the indirect effect of compressed work hours satisfaction on absenteeism through emotional exhaustion and physical health was not significantly different between women and men, the relationship between compressed work hours satisfaction and physical health was positive for women but not for men. The implications of these findings are discussed.  相似文献   
203.
An occlusion protocol was used to elucidate the respective roles of preprograming and online control during the quiet eye period of golf putting. Twenty-one novice golfers completed golf putts to 6-ft and 11-ft targets under full vision or with vision occluded on initiation of the backswing. Radial error (RE) was higher, and quiet eye was longer, when putting to the 11-ft versus 6-ft target, and in the occluded versus full vision condition. Quiet eye durations, as well as preprograming, online and dwell durations, were longer in low-RE compared to high-RE trials. The preprograming component of quiet eye was significantly longer in the occluded vision condition, whereas the online and dwell components were significantly longer in the full vision condition. These findings demonstrate an increase in preprograming when vision is occluded. However, this was not sufficient to overcome the need for online visual control during the quiet eye period. These findings suggest the quiet eye period is composed of preprograming and online control elements; however, online visual control of action is critical to performance.  相似文献   
204.
205.
This article explores both theoretical and practical concepts related to the therapist's use of the self in psychotherapy. Particular emphasis is placed on the potential clinical value of countertransference. It is argued that awareness and resolution of personal issues are required for therapists to draw profitably from their own experiences in working with clients. Specific steps in translating the concept of the wounded healer into clinical practice are offered, along with examples from the author's own practice.  相似文献   
206.
Based on 7,939 business units in 36 companies, this study used meta-analysis to examine the relationship at the business-unit level between employee satisfaction-engagement and the business-unit outcomes of customer satisfaction, productivity, profit, employee turnover, and accidents. Generalizable relationships large enough to have substantial practical value were found between unit-level employee satisfaction-engagement and these business-unit outcomes. One implication is that changes in management practices that increase employee satisfaction may increase business-unit outcomes, including profit.  相似文献   
207.
A constructive model of recall and communication (D. Edwards & D. Middleton, 1986) and certain whole-word approaches to learning (C. Pontecorvo & C. Zucchermaglio, 1989) were evaluated in conjunction with an investigation of the benefits of joint storytelling on children's cognitive processes. Preschoolers (N = 36, aged 30-62 months) were prompted to compose a story, working with a classmate (during which they talked together freely and generated a mutual narrative) or individually. Findings revealed that, although dyadically generated stories were longer, containing significantly more words, propositions, and additive conjunctions, stories told by individuals contained proportionally more logically connected statements and greater use of the past tense. Moreover, compared with dyadic stories, individually generated narratives contained fewer alterations of the protagonist.  相似文献   
208.
Behavior analysis has long accepted the legitimacy of the analysis of private events in a natural science of behavior. However, the topic has languished as a focus of empirical research in either applied or basic arenas. We argue that recent empirical work examining the bidirectional nature of verbal relations may shed light on the role of private events in complex human behavior. Skinner argued that although it would be possible to analyze private events, we need not, because thoughts and feelings were viewed as co-occuring products of the same contingencies that are responsible for changes in overt responses. However, the bidirectional transformation of stimulus function inherent in verbal behavior changes the way that private events participate in complex behavioral episodes for verbal organisms. We examine why we have reached such a conclusion, with special emphasis on the role of self-awareness. Finally, we conclude with an application of our analysis to the problem of substance abuse.  相似文献   
209.
This study examined how a fundamental principle of induction and scientific reasoning, information diversity, could be used to promote change in children's mental models of the earth's shape. Six-year-old children (N=132) were randomly allocated to a control or to one of two training conditions. Some training groups received instruction that simultaneously challenged children's beliefs concerning (a) why the earth appears flat to a surface observer and (b) the role of gravity. Others received instruction that repeatedly challenged only one of these beliefs. An adaptation of the Vosniadou and Brewer (1992, Cognitive Psychology 24, 535-585) protocol for identifying mental models of the earth was administered before and after instruction. Both instruction methods produced increases in factual knowledge. Only children receiving instruction about two core beliefs, however, showed an increased rate of acceptance of a spherical earth model at posttest. The findings show that instruction that challenges diverse aspects of children's na?ve scientific beliefs is more likely to produce conceptual change.  相似文献   
210.
Coley JD  Hayes B  Lawson C  Moloney M 《Cognition》2004,90(3):217-253
Previous research (e.g. Cognition 64 (1997) 73) suggests that the privileged level for inductive inference in a folk biological conceptual hierarchy does not correspond to the “basic” level (i.e. the level at which concepts are both informative and distinct). To further explore inductive inference within conceptual hierarchies, we examine relations between knowledge of concepts at different hierarchical levels, expectations about conceptual coherence, and inductive inference. In Experiments 1 and 2, 5- and 8-year-olds and adults listed features of living kind (Experiments 1 and 2) and artifact (Experiment 2) concepts at different hierarchical levels (e.g. plant, tree, oak, desert oak), and also rated the strength of generalizations to the same concepts. For living kinds, the level that showed a relative advantage on these two tasks differed; the greatest increase in features listed tended to occur at the life-form level (e.g. tree), whereas the greatest increase in inductive strength tended to occur at the folk-generic level (e.g. oak). Knowledge and induction also showed different developmental trajectories. For artifact concepts, the levels at which the greatest gains in knowledge and induction occurred were more varied, and corresponded more closely across tasks. In Experiment 3, adults reported beliefs about within-category similarity for concepts at different levels of animal, plant and artifact hierarchies, and rated inductive strength as before. For living kind concepts, expectations about category coherence predicted patterns of inductions; knowledge did not. For artifact concepts, both knowledge and expectations predicted patterns of induction. Results suggest that beliefs about conceptual coherence play an important role in guiding inductive inference, that this role may be largely independent of specific knowledge of concepts, and that such beliefs are especially important in reasoning about living kinds.  相似文献   
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