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221.
Gill DL 《Journal of motor behavior》1979,11(2):113-122
Two experiments were conducted to investigate the prediction of group performance on the motor-maze task from individual member abilities. In both experiments subjects performed 20 individual trials on the maze task in an initial session prior to the actual experiment. On the basis of these individual performance scores, two-person groups were formed so that the groups represented a range of average ability levels and a range of discrepancies in abilities between partners. In Experiment 1, all groups performed a cooperative and a noncooperative group task in separate sessions both involving competition with another group. Only the cooperative group task was used in Experiment 2, but all groups performed under both competitive and noncompetitive conditions. Multiple regression analyses yielded a moderate, positive relationship between member abilities and group performance in both experiments; group performance on the highly cooperative task was dominated by the lower-ability partner. 相似文献
222.
Robin Gill 《Journal of Contemporary Religion》2002,17(3):335-338
This article argues that neither Steve Bruce's theory of secularisation nor Grace Davie's theory of voluntary organisations are needed to explain British attitudes to religious belief and practice. 相似文献
223.
Michael B. Gill 《Philosophical Studies》2009,145(2):215-234
224.
This article introduces the framework of conceptual combinations, which underlies the creative ability to combine existing concepts to create new ones. Using this framework, two creative processes are identified, namely, (a) property mapping (PM), which entails combining concepts by transferring a property from one concept to another (e.g., shape in the case of notebook computers); and (b) relation linking (RL), which entails linking the two combining concepts by a thematic relation (e.g., the “locative” relation in desktop computers). The effect of these processes on the comprehension of new product concepts is investigated in two experimental studies. In Study 1 it is shown that novel products created by RL are easier to interpret than the ones created by PM. In Study 2 it is found that new products combining concepts from different super‐ordinate categories are more likely interpreted by RL, and are easier to comprehend than the ones from the same super‐ordinate category, which use PM. The theoretical and managerial implications of using conceptual combinations in the context of new product ideation are discussed. 相似文献
225.
Munger KM Gill CJ Ormond KE Kirschner KL 《Mental retardation and developmental disabilities research reviews》2007,13(2):121-128
Recent scientific discoveries have made it much easier to test prenatally for various genetic disabilities, such as Down syndrome. However, while many observers have heralded such "advances" for their effectiveness in detecting certain conditions, others have argued that they perpetuate discrimination by preventing the birth of children with disabilities. This article examines the ethical and social implications of the Human Genome Project for individuals with intellectual disabilities and their families. It details the critique of prenatal testing articulated by many disability rights activists as well as scholarly and professional responses to that critique. A review of the pertinent research literature includes perspectives of genetic professionals, ethicists, disability studies scholars, parents of children with disabilities, and disabled individuals themselves. Finally, the article explores how future research endeavors, policies, and practices may more effectively integrate and respect the positions of these various stakeholders. 相似文献
226.
Parallel processing across neural systems: implications for a multiple memory system hypothesis 总被引:3,自引:0,他引:3
A common conceptualization of the organization of memory systems in brain is that different types of memory are mediated by distinct neural systems. Strong support for this view comes from studies that show double (or triple) dissociations between spatial, response, and emotional memories following selective lesions of hippocampus, striatum, and the amygdala. Here, we examine the extent to which hippocampal and striatal neural activity patterns support the multiple memory systems view. A comparison is made between hippocampal and striatal neural correlates with behavior during asymptotic performance of spatial and response maze tasks. Location- (or place), movement, and reward-specific firing patterns were found in both structures regardless of the task demands. Many, but not all, place fields of hippocampal and striatal neurons were similarly affected by changes in the visual and reward context regardless of the cognitive demands. Also, many, but not all, hippocampal and striatal movement-sensitive neurons showed significant changes in their behavioral correlates after a change in visual context, irrespective of cognitive strategy. Similar partial reorganization was observed following manipulations of the reward condition for cells recorded from both structures, again regardless of task. Assuming that representations that persist across context changes reflect learned information, we make the following conclusions. First, the consistent pattern of partial reorganization supports a view that the analysis of spatial, response, and reinforcement information is accomplished via an error-driven, or match-mismatch, algorithm across neural systems. Second, task-relevant processing occurs continuously within hippocampus and striatum regardless of the cognitive demands of the task. Third, given the high degree of parallel processing across allegedly different memory systems, we propose that different neural systems may effectively compete for control of a behavioral expression system. The strength of the influence of any one neural system on behavioral output is likely modulated by factors such as motivation, experience, or hormone status. 相似文献
227.
Jonathan A Fugelsang Courtney B Stein Adam E Green Kevin N Dunbar 《Revue canadienne de psychologie expérimentale》2004,58(2):86-95
A number of researchers and scholars have stressed the importance of disconfirmation in the quest for the development of scientific knowledge (e.g., Popper, 1959). Paradoxically, studies examining human reasoning in the laboratory have typically found that people display a confirmation bias in that they are more likely to seek out and attend to data consistent rather than data inconsistent with their initial theory (Wason, 1968). We examine the strategies that scientists and students use to evaluate data that are either consistent or inconsistent with their expectations. First, we present findings from scientists reasoning "live" in their laboratory meetings. We show that scientists often show an initial reluctance to consider inconsistent data as "real." However, this initial reluctance is often overcome with repeated observations of the inconsistent data such that they modify their theories to account for the new data. We further examine these issues in a controlled scientific causal thinking simulation specifically developed to examine the reasoning strategies we observed in the natural scientific environment. Like the scientists, we found that participants in our simulation initially displayed a propensity to discount data inconsistent with a theory provided. However, with repeated observations of the inconsistent data, the students, like the scientists, began to see the once anomalous data as "real" and the initial bias to discount that data was significantly diminished. 相似文献
228.
Dunbar N van Dulmen MH Ayers-Lopez S Berge JM Christian C Gossman G Henney MS Mendenhall TJ Grotevant HD McRoy RG 《Family process》2006,45(4):449-464
The purpose of this study was to reveal underlying processes in adoptive kinship networks that experienced increases or decreases in levels of openness during the child's adolescent years. Intensive case study analyses were conducted for 8 adoptive kinship networks (each including an adoptive mother, adoptive father, adopted adolescent, and birth mother), half of whom had experienced an increase in openness from indirect (mediated) to direct (fully disclosed) contact and half of whom had ceased indirect contact between Waves 1 and 2 of a longitudinal study. Adoptive mothers tended to be more involved in contact with the birth mother than were adoptive fathers or adopted adolescents. Members of adoptive kinship networks in which a decrease in level of contact took place had incongruent perspectives about who initiated the stop in contact and why the stop took place. Birth mothers were less satisfied with their degree of contact than were adoptive parents. Adults' satisfaction with contact was related to feelings of control over type and amount of interactions and permeability of family boundaries. In all adoptive kinship networks, responsibility for contact had shifted toward the adopted adolescent regardless of whether the adolescent was aware of this change in responsibility. 相似文献
229.
Fourteen right-handed males were shown slides of common objects (e.g., wristwatch), familiar situations (e.g., two people shaking hands), and inkblots from a popular projective test (Holtzman, 1986) and then asked to name the object, assess the situation, or describe the most salient image emerging from the inkblot. Alpha power suppression was monitored over the left and right frontal, temporal, parietal, and occipital lobes to determine the brain circuitry responsible for the processing of each type of stimulus. When processing common objects and familiar situations there was bilateral activation of the parietal and occipital lobes; when processing inkblots, bilateral activation of the parietal and occipital lobes was again obtained, but complemented by selective activation of the right frontal lobe. The later suggests that anterior regions of the right cerebral hemisphere contribute to the generation of dynamic images like those evoked by visually ambiguous inkblots. 相似文献
230.
Prior studies suggest that knowledge and attitudes of health care professionals influence patient communication and medical decision making. To study this dynamic in the context of genetic disability, we developed a survey on health professionals' attitudes regarding disability and genetic screening and pilot-tested it on a sample of medical students, residents, and genetic counseling students (N = 85). Despite minimal experience with disability or genetics, most respondents reported feeling comfortable dealing with genetics (59%) and disability (75%). The majority felt that disability caused significant suffering for both the person (51%) and family (64%), and that research should be directed toward preventing genetic disability (62%). Similar to prior literature, perceived Quality of Life was most often based on degrees of physical and cognitive functioning, pain, and social support. However, differences were found between genetic counseling trainees and other medical trainees in their relative emphasis of social versus medical issues in questions of disability and genetic testing, and these response patterns were associated with differences in the groups' priorities for offering information about social resources. Respondents agreed that access to genetic testing and information is personal and that testing should be available upon request for oneself (68%) and to a lesser degree for one's fetus (55%) or child (41%). However, the same individuals frequently stated that society should regulate access to such technologies. Although most felt that the patient and professional should jointly make such decisions on a case-by-case basis, it was also seen as appropriate for the health care professional to occasionally decline genetic testing. It seems apparent that training and experience influence knowledge and attitudes. Therefore, it is critical to document knowledge and attitudes of various health care providers and trainees, including differences between various specialties, to improve educational interventions geared to this area. 相似文献