全文获取类型
收费全文 | 22432篇 |
免费 | 752篇 |
国内免费 | 11篇 |
专业分类
23195篇 |
出版年
2020年 | 204篇 |
2019年 | 210篇 |
2018年 | 317篇 |
2017年 | 360篇 |
2016年 | 358篇 |
2015年 | 231篇 |
2014年 | 306篇 |
2013年 | 1651篇 |
2012年 | 604篇 |
2011年 | 656篇 |
2010年 | 405篇 |
2009年 | 378篇 |
2008年 | 556篇 |
2007年 | 550篇 |
2006年 | 502篇 |
2005年 | 450篇 |
2004年 | 446篇 |
2003年 | 407篇 |
2002年 | 454篇 |
2001年 | 725篇 |
2000年 | 748篇 |
1999年 | 553篇 |
1998年 | 259篇 |
1997年 | 216篇 |
1992年 | 449篇 |
1991年 | 407篇 |
1990年 | 446篇 |
1989年 | 415篇 |
1988年 | 396篇 |
1987年 | 400篇 |
1986年 | 407篇 |
1985年 | 422篇 |
1984年 | 336篇 |
1983年 | 301篇 |
1982年 | 238篇 |
1981年 | 214篇 |
1979年 | 387篇 |
1978年 | 278篇 |
1977年 | 251篇 |
1976年 | 222篇 |
1975年 | 342篇 |
1974年 | 375篇 |
1973年 | 351篇 |
1972年 | 331篇 |
1971年 | 289篇 |
1970年 | 263篇 |
1969年 | 322篇 |
1968年 | 361篇 |
1967年 | 321篇 |
1966年 | 325篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
A 39-year-old female suffered bitemporal infarctions and exhibited an unusual behavioral syndrome of muteness and impaired auditory comprehension, with milder aphasic deficits in reading and writing. The anatomic basis of this modality-selective communication disorder appeared to involve both peripheral perceptual and motor as well as “central” language mechanisms. The patient's ability to communicate was greatly aided by instruction in Amerind and Ameslan Sign Language, in which she learned more than 100 signs. Patients whose acquired language deficits spare modalities of input or output may be ideal candidates for sign language therapy. 相似文献
972.
D. G. Williams 《Personality and individual differences》1981,2(4):303-309
The scores of 33 subjects of the neuroticism scale of the Eysenck Personality Questionnaire correlated more highly with mood levels averaged over the 12 occasions studied than, on average, with mood scores on single occasions, and more highly with mood described in global terms than with scores on each of the original 18 mood scales. Subjects with high neuroticism scores had poorer mood on average and showed greater variation in mood pattern from one occasion to another than did more stable subjects. It is suggested that forms of relatively poor mood may be more varied than forms of good mood, and that, although neuroticism makes a poor mood more likely, the precise composition of this mood on any occasion may be determined by the combination of situation characteristics and person variables. Psychoticism scores correlated significantly, though weakly, with the average scores for some mood scales independently of neuroticism. 相似文献
973.
974.
Judith G. Smetana 《Journal of applied developmental psychology》1981,2(3):211-226
The present investigation of adolescent and young adult women's reasoning, and decision-making about abortion was conducted to determine whether reasoning about abortion could be described by moral, social-conventional, and personal concepts and to examine relationships between domain of reasoning and action choices. Seventy single women, ranging in age from 13 to 31 and divided between 25 women having abortions, 23 women continuing their pregnancies, and 22 never-pregnant women, were administered a semi-structured clinical interview about abortion and two hypothetical moral judgement dilemmas. A classification task was developed to provide an additional measure of reasoning in different domains. Another 29 single, first-pregnant women provided a comparison of the effects of these procedures on decision-making. Content analysis of the protocols revealed that responses to the abortion interview could be reliably distinguished between concepts of morality and personal issues and their coordination or lack of coordination. Subjects treating abortion as a moral issue were more likely to continue their pregnancies while subjects treating abortion as a personal issue were more likely to obtain an abortion. Differences in reasoning between pregnant and nonpregnant subjects were not observed. Moral responses to the abortion interview were found to be highly related to hypothetical moral judgments. 相似文献
975.
Summary Familiarity effects in visual letter processing were examined by means of a mutilation detection task. The uppercase E was used as the non-mutilated letter. One or two horizontal bars of the E were delected, to produce an upright or inverted F or L. These four mutilations of the E were assigned to the same response. In Experiment 1, brief exposure of the stimuli was followed by a backward mask. Experiment 2 was identical to Experiment 1, except that the display duration of the stimulus was increased and the backward mask was omitted. In Experiment 3, the overall luminance of the stimuli (luminance per point times length of the constituent line segments) was held constant. In Experiment 4, the upright and inverted non-E letter occurred in different blocks to encourage a normal (upright) letter processing strategy in the upright letter blocks. Accuracy (Experiment 1) and mean correct response times (all experiments) were not different for the upright and inverted F or for the upright and inverted L. These findings and converging results from other studies indicate that the higher familiarity of the upright letters did not aid feature extraction. 相似文献
976.
G. Lowe 《Current Psychology》1981,1(1):3-8
Thirty-two adult volunteers were asked to memorize a simplified geographical map, visually displayed, together with an auditorially
presented 19-item set of instructions regarding a particular route. During this session, half the subjects were sober and
half were under the effects of a moderate dose of alcohol (mean blood alcohol concentration = 81mg/100ml). Twenty-four hours
later they were tested under the same or different conditions. Learning performance on Day 1 was unaffected by alcohol. Learning
transfer (tested on Day 2) was equally good when subjects were intoxicated during both sessions or were sober during both
sessions. There were significant decrements in recall on Day 2, when subjects were in a different drug state. This ‘dissociation
of learning’ was found to be symmetrical in that the recall decrement was the same whether the initial learning was acquired
in a sober or a drugged state. 相似文献
977.
The perception of the general social standing of husbands and wives in dual-work families as a function of their respective achieved and derived occupational statuses was examined experimentally. The results indicated that both the wife's and husband's general social status was a function only of the husband's occupational status; the wife's occupational status had no effect on either her general social status or that of her husband. The one exception to this was the case of the high achieved occupational status wife depressing the social status of the low occupational status husband. The results are discussed in terms of their implications for recent critiques of male-determined stratification models. 相似文献
978.
This research attempted to establish relationships between locus of control, self-esteem, and traditional-nontraditional behavior. It was hypothesized that (1) women tending toward internality and high self-esteem should be more likely to manifest nontraditional behaviors, as evidenced through career-oriented roles, and to rank these roles as their primary source of satisfaction; and (2) women tending toward externality and low self-esteem should be more likely to manifest traditional behavior, as evidenced through family-oriented roles, and to rank these roles as their primary source of satisfaction. The sample consisted of 91 White females in a southern metropolitan area. The data were collected using a survey design. As expected, high self-esteem internals were more likely to manifest nontraditional behavior. Contrary to expectation, low self-esteem externals were more nontraditional in role orientation. 相似文献
979.
980.
Two studies were conducted examining the contributions of repression-sensitization (R-S) status, sex-role perceptions, and sex of the target of expressivity to assess the expression of emotional discomfort by males, in Experiment I verbal and nonverbal measures of emotional expressiveness were obtained for male repressors and sensitizers exposed to neutral or moderately negative arousal situations with sex of the target of the expressiveness controlled. In Experiment 2 repressors were found to be sex-typed masculine and male sensitizers sex-reversed in their sex-role perceptions. The usefulness of R-S status and sex, role perceptions to predicting emotional expressivity by males is discussed. 相似文献