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231.
Barfield W Rosenberg C Furness TA rd 《The International journal of aviation psychology》1995,5(3):233-256
The purpose of this study was to determine how 3 variables for the design of a "heads-down" spatial display--the frame of reference (pilot's eye vs. God's eye), geometric field of view, and elevation of the computer graphics eyepoint--influenced situation awareness. Thirteen flight-naive subjects each flew a simulated F-16 over a computer-generated flight environment to lock onto and intercept a series of sequentially appearing targets. The flight scene consisted of both an "out-the-window" view and a computer-generated heads-down spatial display showing an airplane symbol superimposed on a perspective view of the flight environment. During the interactive phase of the experiment, root mean square flight-path error, target lock-on time, and target acquisition time were measured. After the interactive phase of the study was completed, subjects were required to mark the location of the targets from memory on a computer-generated top-down view of the flight scene in an attempt to reconstruct the spatial mental model which subjects formed of the flight environment. The results for the interactive phase of the study indicated that performance was superior using the pilot's-eye display. However, for the spatial reconstruction task, performance was better using the God's-eye display. It was also shown that the ability to maintain the optimal flight-path using the more top-down view of the scene (600 eyepoint) was superior to the 300 eyepoint elevation. Implications of the results for the design of spatial instruments are discussed. 相似文献
232.
We give a condensed survey of recent research on generalized quantifiers in logic, linguistics and computer science, under the following headings: Logical definability and expressive power, Polyadic quantifiers and linguistic definability, Weak semantics and axiomatizability, Computational semantics, Quantifiers in dynamic settings, Quantifiers and modal logic, Proof theory of generalized quantifiers.This paper was inspired by the symposium on Generalized Quantifiers held at the 5th European Summer School in Logic, Language and Information in Lisbon, August 1993. We feel that the work presented there motivates a survey of recent research areas and research problems in the field of generalized quantifiers. The speakers at the symposium, Natasha Alechina, Jaap van der Does, Lauri Hella, Michal Krynicki, Michiel van Lambalgen, Kerkko Luosto, Marcin Mostowski, and Jouko Väänänen, have cooperated and made (oral and/or written) contributions and comments to this research survey which we gratefully acknowledge, and without which it would not have been written. But it is easier to produce a paper with two authors than with ten, and so the present authors take full responsibility for the final formulation of the paper. In addition, we are grateful for comments received from some further colleagues, in particular, Dorit Ben-Shalom, Makoto Kanazawa, Victor Sanchez, Yde Venema and two anonymous referees.Presented byJan Zygmunt 相似文献
233.
An operant approach to rehabilitation medicine: overcoming learned nonuse by shaping. 总被引:11,自引:1,他引:10
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E Taub J E Crago L D Burgio T E Groomes E W Cook rd S C DeLuca N E Miller 《Journal of the experimental analysis of behavior》1994,61(2):281-293
A new approach to the rehabilitation of movement, based primarily on the principles of operant conditioning, was derived from research with deafferented monkeys. The analysis suggests that a certain proportion of excess motor disability after certain types of injury involves a learned suppression of movement and may be termed learned nonuse. Learned nonuse can be overcome by changing the contingencies of reinforcement so that they strongly favor use of an affected upper extremity in the chronic postinjury situation. The techniques employed here involved 2 weeks of restricting movement of the opposite (unaffected) extremity and training of the affected limb. Initial work with humans has been with chronic stroke patients for whom the approach has yielded large improvements in motor ability and functional independence. We report here preliminary data suggesting that shaping with verbal feedback further enhances the motor recovery. 相似文献
234.
235.
Studies in Philosophy and Education - This article is a philosophical analysis of escapism as a pedagogical possibility, with a particular focus on TV series. Taking my own, as well as students,... 相似文献
236.
Tarald O. Kvålseth 《Psychometrika》2018,83(3):618-627
When two (or more) observers are independently categorizing a set of observations, Cohen’s kappa has become the most notable measure of interobserver agreement. When the categories are ordinal, a weighted form of kappa becomes desirable. The two most popular weighting schemes are the quadratic weights and linear weights. Quadratic weights have been justified by the fact that the corresponding weighted kappa is asymptotically equivalent to an intraclass correlation coefficient. This paper deals with linear weights and shows that the corresponding weighted kappa is equivalent to the unweighted kappa when cumulative probabilities are substituted for probabilities. A numerical example is provided. 相似文献
237.
Perceived Investment in Permanent Employee Development and Social and Economic Exchange Perceptions Among Temporary Employees 总被引:2,自引:0,他引:2
This study investigated the mediating roles of social and economic exchange perceptions on the relationship between perceived investment in permanent employee development in the client organization and exchange outcomes among 375 temporary employees. The results support full mediation by exchange perceptions, where social exchange perception is positively related to both task performance and organizational citizenship behavior, and economic exchange perception is negatively related to task performance. Implications for practice and directions for future research are discussed. 相似文献
238.
Specht K Hugdahl K Ofte S Nygård M Bjørnerud A Plante E Helland T 《Scandinavian journal of psychology》2009,50(1):79-91
In this fMRI-study, 6-year-old children considered at risk for dyslexia were compared with an age-/gender-matched control group for differences in brain activation when presented with visual stimuli differing in demands for literacy processing. Stimuli were nameable pictures, brand logos familiar to children, and written words - these were either regularly spelled using early-acquired rules ("alphabetic") or more complex ("orthographic"). Brain responses distinguished between the presentation conditions, as a function of group, within many cortical areas. Activation in the alphabetic and orthographic conditions in the left angular gyrus correlated with individual at-risk index scores, and activation in inferior occipito-temporal regions further indicated differential activation for the two groups related to orthographic processing, especially. Since similar patterns are reported in adult dyslexics when processing written words, it appears that sensitivity to the cortical differentiation of reading networks is established prior to formal literacy training. 相似文献
239.
Molde H Pallesen S Bartone P Hystad S Johnsen BH 《Scandinavian journal of psychology》2009,50(1):55-64
There is evidence that young people are at high risk of developing gambling disorders. The prevalence and correlates of gambling among youth therefore merit closer study. During spring 2004, a sample of 1,351 boys and girls (aged 16–19 years) from 151 high-school classes (clusters) participated in an internet survey about gambling. The response rate was 69.8%. The instruments used in the survey were the Hospital Anxiety and Depression Scale, the Alcohol Use Disorders Identification Test and the Massachusetts Adolescent Gambling Screen, in addition to questions about demography. Controlling for the design effect, the estimated prevalence rate was 2.5% for pathological gambling and 1.9% for problem gambling. In all, 7.3% of the boys and 0.6% of the girls fulfilled the criteria for pathological or problem gambling. The results of item analysis of the DSM-IV subscale of MAGS provide support for differential item functioning between boys and girls. A multiple logistic regression analysis revealed that gender (male: OR = 9.09), depression (OR = 9.23), alcohol abuse (OR = 3.62), and dissociation (OR = 1.96) were related to problem and pathological gambling. These results support the view that gambling disorders are best understood as part of an addictive behavior spectrum ( Jacobs, 2000 ). 相似文献
240.
Habitual emotional state is a predictor of long-term health and life expectancy and successful emotion regulation is necessary
for adaptive functioning. However, people are often unsuccessful in regulating their emotions. We investigated the use of
cognitive reappraisal and expressive suppression in 489 university students in Norway, Australia, and the United States and
how these strategies related to measures of well-being (affect, life satisfaction, and depressed mood). Data was collected
by means of selfadministered questionnaires. The major aims of the study were to begin to explore the prevalence of use of
cognitive reappraisal and expressive suppression across gender, age and culture, possible antecedents of emotion regulation
strategies, and the influence of emotion regulation upon well-being. Results showed that the use of emotion regulation strategies
varied across age, gender and culture. Private self-consciousness (self-reflection and insight) was found to be a central
antecedent for the use of cognitive reappraisal. Use of emotion regulation strategies predicted well-being outcomes, also
after the effect of extraversion and neuroticism had been controlled for. Generally, increased use of cognitive reappraisal
predicted increased levels of positive well-being outcomes, while increased use of expressive suppression predicted increased
levels of negative well-being outcomes.
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Silje Marie HagaEmail: |