全文获取类型
收费全文 | 5250篇 |
免费 | 963篇 |
国内免费 | 322篇 |
专业分类
6535篇 |
出版年
2024年 | 95篇 |
2023年 | 82篇 |
2022年 | 100篇 |
2021年 | 157篇 |
2020年 | 213篇 |
2019年 | 173篇 |
2018年 | 196篇 |
2017年 | 213篇 |
2016年 | 180篇 |
2015年 | 167篇 |
2014年 | 162篇 |
2013年 | 432篇 |
2012年 | 324篇 |
2011年 | 395篇 |
2010年 | 311篇 |
2009年 | 340篇 |
2008年 | 364篇 |
2007年 | 469篇 |
2006年 | 459篇 |
2005年 | 369篇 |
2004年 | 258篇 |
2003年 | 185篇 |
2002年 | 130篇 |
2001年 | 85篇 |
2000年 | 76篇 |
1999年 | 94篇 |
1998年 | 63篇 |
1997年 | 62篇 |
1996年 | 48篇 |
1995年 | 45篇 |
1994年 | 30篇 |
1993年 | 33篇 |
1992年 | 17篇 |
1991年 | 20篇 |
1990年 | 18篇 |
1989年 | 18篇 |
1988年 | 18篇 |
1987年 | 13篇 |
1986年 | 18篇 |
1985年 | 18篇 |
1984年 | 21篇 |
1983年 | 12篇 |
1982年 | 15篇 |
1981年 | 10篇 |
1980年 | 10篇 |
1979年 | 9篇 |
1973年 | 2篇 |
1972年 | 1篇 |
1970年 | 1篇 |
1967年 | 1篇 |
排序方式: 共有6535条查询结果,搜索用时 0 毫秒
131.
试论山西介休后土庙道教建筑群之管理 总被引:1,自引:0,他引:1
本文利用山西介休后土庙道教古建筑群内的碑刻等资料,探讨后土庙建筑群与三清观发展历史、管理方式及其庙宇市场效应,尝试以田野考古方法研究古代道教历史及其管理模式。 相似文献
132.
以横断研究方法探讨一生发展中搜索速度对短时记忆容量的影响。以记忆广度任务和斯腾伯格任务分别测量6~70岁被试短时记忆容量与记忆搜索速度。结果发现:记忆广度在16岁达到最高峰,以后开始下降;一生的不同阶段,斯腾伯格任务中成功搜索的加工过程基本一致,但搜索速度一直在发展;搜索速度可能是贯穿短时记忆发展一生的影响因素。 相似文献
133.
Kuo YM Liang KC Chen HH Cherng CG Lee HT Lin Y Huang AM Liao RM Yu L 《Neurobiology of learning and memory》2007,87(1):93-100
Context-induced drug craving and continuous drug use manifest the critical roles of specific memory episodes associated with the drug use experiences. Drug-induced conditioned place preference (CPP) in C57BL/6J mouse model, in this regard, is an appropriate behavioral paradigm to study such drug use-associated memories. Requirement of protein synthesis in various forms of long-term memory formation and storage has been phylogenetically demonstrated. This study was undertaken to study the requirement of protein synthesis in the learning and memory aspect of the conditioned place preference induced by cocaine and methamphetamine, two abused drugs of choice in local area. Since pCREB has been documented as a candidate substrate for mediating the drug-induced neuroadaptation, the pCREB level in hippocampus, nucleus accumbens, and prefrontal cortex was examined for its potential participation in the formation of CPP caused by these psychostimulants. We found that cocaine (2.5 and 5.0 mg/kg/dose)-induced CPP was abolished by the pretreatment of anisomycin (50 mg/kg/dose), a protein synthesis inhibitor, whereas methamphetamine (0.5 or 1.0 mg/kg/dose)-induced CPP was not affected by the anisomycin pretreatment. Likewise, cocaine-induced CPP was mitigated by another protein synthesis inhibitor, cycloheximide (15 mg/kg/injection) pretreatment, whereas methamphetamine-induced CPP remained intact by such pretreatment. Moreover, anisomycin treatment 2h after each drug-place pairing disrupted the cocaine-induced CPP, whereas the same treatment did not affect methamphetamine-induced CPP. An increase of accumbal pCREB level was found to associate with the learning phase of cocaine, but not with the learning phase of methamphetamine. We further found that intraaccumbal CREB antisense oligodeoxynucleotide infusion diminished cocaine-induced CPP, whereas did not affect the methamphetamine-induced CPP. Taken together, these data suggest that protein synthesis and accumbal CREB phosphorylation are essential for the learning and consolidation of the cocaine-induced CPP, whereas methamphetamine-induced CPP may be unrelated to the synthesis of new proteins. 相似文献
134.
Xuezhi Zhang 《Frontiers of Philosophy in China》2007,2(3):379-401
Ancient Chinese philosophers were inclined to preserve the doctrine of a unified body and mind rather than to engage in a
discussion on the separation of the two. In addition, most traditional Chinese philosophers stressing in particular the function
of mind. Based on the tradition of believing in the concept of qi, they traced the cause of their spiritual activities to the natural effect of the qi. The modalities display a phenomenological characteristic that looks at mental activities lightly, and examines language
and action as a natural revelation of material force, qi.
__________
Translated from Beijing Daxue Xuebao 北京大学学报 (Journal of Peking University), 2005, (5): 5–14 相似文献
135.
Peter Vitaliano Diana Echeverria Mary Shelkey Jianping Zhang James Scanlan 《Journal of clinical psychology in medical settings》2007,14(3):177-190
The current study evaluated whether psychological distress (composite of depression, anxiety, vital exhaustion), inflammation
(C-reactive protein, CRP) and cognitive function (Digit Symbol Test, DST) and their changes mediated the relationship between
caregiver status and functional decline. Caregivers for spouses with Alzheimer’s disease were compared to demographically-similar
non-caregiver spouses at study entry (T1), T2 (1 year later), and T3 (2 years after T1). Caregivers had greater functional
impairment, higher distress scores, and poorer DST scores at all points of measurement and also showed functional decline.
Non-caregivers did not demonstrate functional decline. Caregivers declined 85% faster than did non-caregivers. Regressions
showed that after controlling for functional impairment at T1, illness, medication, and health behavior covariates, psychological
distress at T1 and increases in CRP from T1 to T3 mediated the difference in functional decline. Moreover, after DST decline
from T1 to T2 was entered in the model, caregiver status, psychological distress and increases in inflammation all showed
reductions in their predictive importance. These findings suggest psychological distress and increases in inflammation may
help explain why caregivers show greater functional decline than non-caregivers. However, the influences of these psychophysiological
variables may be driven in part by cognitive decline prior to functional decline.
This article is based upon an invited address, “Potential Hazards of Caring for a Loved One with Alzheimer’s Disease” given
by the first author in recognition of the author’s receipt of the Association of Psychologists in Academic Health Centers
2005 Award for Distinguished Achievement in Research. The address was presented at the Annual meeting of the American Psychological
Association, New Orleans, LA., August, 2006. 相似文献
136.
选取条件概率(P(Q|P))由低到高的四个命题作为四卡问题中的检验规则,探讨了大学生被试对四张卡片的逻辑证明作用的推断能力及其对解决四卡问题的影响。结果发现:(1)不同条件概率的命题之间正确选择P-Q的人数百分比不存在显著差异,命题的条件概率因素对四卡问题的正确解决没有影响。(2)逻辑分析过程对四卡问题的正确解决产生了一定的抑制作用,这可能是因为被试不能从整体上思考四张卡片在命题检验中的逻辑作用的缘故。(3)一些被试即使在逻辑分析过程中表现出知道-Q卡片的证伪作用,仍然倾向于选择卡片Q而非-Q,这一现象再次证实了人类思维的非形式逻辑的一面。 相似文献
137.
从时间管理倾向和目标设置的有关理论出发,设计了两个实验任务,考察了中学优、差生目标设置的效果。结果发现,中学优、差生在目标设置效果上存在一定差异。在简单任务上,中学优差生在完成任务的时间和准确率上均不存在显著差异;在复杂任务上,二者都存在显著差异,优生好于差生。研究还发现,在完成任务的时间上,目标设置对中学优生和差生的影响具有一致性,复杂任务明确目标的成绩明显好于不明确目标的成绩。 相似文献
138.
139.
初二学生解几何应用题策略类型的研究 总被引:1,自引:0,他引:1
运用作品分析法对60份初二优秀生、中等生、差生的第一学期数学期中考试卷进行分析,发现初二不同学习水平学生解数学应用题时表现出不同的解题策略类型:优秀生的解题策略属于“俯瞰型”;中等生的解题策略属于“经验型”;差生的解题策略属于“盲试型”。 相似文献
140.