全文获取类型
收费全文 | 6142篇 |
免费 | 76篇 |
国内免费 | 11篇 |
专业分类
教育 | 4558篇 |
科学研究 | 446篇 |
各国文化 | 130篇 |
体育 | 403篇 |
综合类 | 8篇 |
文化理论 | 56篇 |
信息传播 | 628篇 |
出版年
2021年 | 42篇 |
2020年 | 66篇 |
2019年 | 120篇 |
2018年 | 139篇 |
2017年 | 152篇 |
2016年 | 174篇 |
2015年 | 104篇 |
2014年 | 121篇 |
2013年 | 1528篇 |
2012年 | 111篇 |
2011年 | 130篇 |
2010年 | 109篇 |
2009年 | 139篇 |
2008年 | 140篇 |
2007年 | 122篇 |
2006年 | 92篇 |
2005年 | 138篇 |
2004年 | 304篇 |
2003年 | 198篇 |
2002年 | 127篇 |
2001年 | 99篇 |
2000年 | 108篇 |
1999年 | 94篇 |
1998年 | 63篇 |
1997年 | 73篇 |
1996年 | 62篇 |
1995年 | 73篇 |
1994年 | 63篇 |
1993年 | 56篇 |
1992年 | 68篇 |
1991年 | 83篇 |
1990年 | 63篇 |
1989年 | 53篇 |
1988年 | 41篇 |
1987年 | 60篇 |
1986年 | 50篇 |
1985年 | 60篇 |
1984年 | 58篇 |
1983年 | 65篇 |
1982年 | 53篇 |
1981年 | 55篇 |
1980年 | 38篇 |
1979年 | 54篇 |
1978年 | 65篇 |
1977年 | 50篇 |
1976年 | 37篇 |
1975年 | 45篇 |
1974年 | 28篇 |
1973年 | 35篇 |
1971年 | 26篇 |
排序方式: 共有6229条查询结果,搜索用时 15 毫秒
71.
In a Pavlovian conditioning situation, an initially neutral stimulus may be made excitatory by nonreinforced presentations
in compound with an established conditioned excitor [i.e., second-order conditioning (SOC)]. The established excitor may be
either a punctate cue or the training context. In four conditioned suppression experiments using rats, we investigated whether
SOC phenomena parallel other cue interaction effects. In Experiment 1, we found that the response potential of a target stimulus
was directly related to the intertrial interval when SOC was mediated by a punctate cue, and inversely related to the intertrial
interval when SOC was mediated by the training context. Experiment 2 demonstrated that punctate- and context-mediated SOC
are oppositely affected by posttraining context extinction, and Experiments 3 and 4 demonstrated that context- and punctate-mediated
SOC are differentially affected by conditioned stimulus (Experiment 3) and unconditioned stimulus (Experiment 4) preexposure
treatments. These findings parallel phenomena in conditioned inhibition and cue competition situations. 相似文献
72.
It may be concluded that female administrators are perceived as being more adept than their male counterparts for leading innovation in schools and leveraging resources into productive outputs. It may be concluded that both genders of administrators perceive such efforts similarly. The only two skills where gender is significant are the two eornpetencies identified as being alert for new opportunities and synthesizing ideas into focused projects. For the other eight skills indicated in the survey, gender did not play a significant role in such perceptions. 相似文献
73.
This study investigated the hypothesis that conventional role stereotypes of rehabilitation and non-rehabilitation counselors attract counselor candidates who differ in preferred modes of counseling interview behavior and in personality characteristics. Twenty-four rehabilitation counselor candidates and 21 non-rehabilitation counselor candidates enrolled in a beginning counseling course held interviews with a standard client. Candidates' responses were classified employing a content analysis scale. All subjects had taken the 16 PF at the beginning of the course. Results found rehabilitation counselor candidates used informative, questioning, diagnosing, and probing responses more frequently and feeling responses less frequently than did non-rehabilitation candidates. Non-rehabilitation candidates appeared less practical, conservative, and group adherent on the 16 PF than rehabilitation candidates. 相似文献
74.
提升就业质量:职业教育发展的新视角 总被引:7,自引:1,他引:7
职业教育应努力追求“充分的、生产性的和自由选择的就业”目标的实现;不能仅仅关注毕业生的“就业率”,而更要将“提升就业质量”作为发展的新视角。所谓“就业质量”,一般概括为职业社会地位、工资水平、社会保障、发展空间等四大方面,具体体现在职业声望、职业期望满足程度、职业成就、职业锚、专业方向与职业的适应性、人职匹配诸方面。提升就业质量途径和措施主要概括为:首先,重视提高职业咨询或职业指导的质量;其次,基于就业质量的提升,改革职业教育课程与教学;再次,借鉴发达国家和地区的“现代学徒制”理论和实践经验,创设“本土化的”产学合作现代职业教育模式。 相似文献
75.
James R. Anderson 《Learning & behavior》1983,11(1):139-143
Two experiments examined the responses of infant stumptail macaques (Macaco arctoides) to mirror-image stimulation (MIS) during short social separations. Overall, infants living in pairs showed agitation when separated from their partners, but were calmer when the partner, an unfamiliar peer, or their own mirror image was visible. MIS elicited more facial expressions than the familiar peer, and more affiliative contact than an unfamiliar peer. In contrast, infants reared in a group were not calmed during separations either by an unfamiliar peer or by MIS, and they exhibited some negative reactions to the mirror. Social responsiveness to MIS varies with the social background of the subjects. 相似文献
76.
Principal Recruitment: An Empirical Evaluation of a School District’s Internal Pool of Principal Certified Personnel 总被引:1,自引:0,他引:1
Paul A. Winter James S. Rinehart Marco A. Muñoz 《Journal of Personnel Evaluation in Education》2002,16(2):129-141
Applicant pools for principal vacancies are shrinking nationwide. This shortage of job applicants requires school districts to evaluate their internal pools of principal certified personnel. In this study, 194 certified individuals from a large school district responded to a survey measuring attraction to the job of principal, current job satisfaction versus expected satisfaction in the job of principal, barriers to pursuing the job, and recommended changes in the job. Few participants intended to apply for principal vacancies due to age (median=51), lack of self-reported capability to do the job, and satisfaction with the current job. Participants perceived their job satisfaction would decrease on assuming the job of principal relative to factors such as time with family and job security, and increase relative to factors such as salary and opportunity to experience varied activities. Implications for principal recruitment and recommendations for restructuring the job are discussed. 相似文献
77.
翁奕波 《华南师范大学学报(社会科学版)》2003,(6):107-112
面对知识经济占主导地位的21世纪,我国高校科学报的机遇和出路何在?塑造学报的个性风格,打造品牌,逐渐融入市场,这就是高校科学报的根本出路。这是由科学报的基本属性决定的,也是由其本质属性决定的;同时,也是由21世纪知识经济的基本特征决定的,是高校科学报个性风格成熟的必然选择。 相似文献
78.
Gerald W. McLaughlin John C. Smart James R. Montgomery 《Research in higher education》1978,8(1):67-82
A linear causal model is postulated and path analysis procedures are used to examine the direct, indirect, and total influence of 39 variables (grouped into eight general measures) on the salaries of 24.461 faculty members associated with virtually every discipline and type of postsecondary institution in the academic community. The results show wide variation in the relative influence of characteristics of postsecondary institutions and the personal and professional characteristics of faculty members on faculty salaries. The implications of these findings are discussed and specific guidelines are provided to assist those interested in examining the external and internal consistency of the faculty salary structures of their respective institutions. 相似文献
79.
In four Pavlovian conditioned lick-suppression experiments, rats had two conditioned stimuli (CSs X and A) independently paired with footshock, followed by pairings of a compound of A and X with the footshock. On subsequent tests with CS X, less conditioned suppression was observed than in control subjects that lacked the compound AX→footshock trials. Thisoverexpectation effect was reversed through posttraining extinction of CS A, a result consistent with both performance- and acquisition-focused models of retrospective revaluation. However, only performance-focused models could account for how posttraining increases or decreases in the A-footshock temporal interval attenuate the overexpectation effect. 相似文献
80.