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981.
黄宗羲的天理人欲之辨是其思想的核心。在此框架下,形成了他的王霸义利之辨和经史结合之学术倾向。一路探索下来,我们发现,尽管黄宗羲似乎带来了某种新的元素,他依然是儒家学统的继承者。反而是其继承者对他思想的误解和片面化,才演化成了他现今的"经世致用"者和近代启蒙者之形象。  相似文献   
982.
17世纪欧洲绝对主义国家和新古典主义美学之间存在着直接的联系.新古典主义艺术崇尚自然、古典、模仿,其哲学根源是笛卡尔主义哲学.笛卡尔哲学建构了心物二元的构架;建立了心灵感情的理论;将理性主义和感觉主义结合起来,为新古典主义美学推出美感类型和艺术性格类型打下了理论基础.笛卡尔哲学的怀疑主义和批判精神,推动了科学思想的巨大进步,但对于宗教神学和国家权力的妥协,影响到新古典主义艺术对于绝对主义国家意志的顺从姿态.  相似文献   
983.
由于瓦斯在煤(岩)中的含量、压力的存在形式、涌出规律、煤层的赋存条件等很难在勘测设计阶段完全、准确掌握,因此在隧道施工中,若突遇高瓦斯隧道地段而不及时按照瓦斯隧道施工规范施工,爆炸伤亡事故便难以避免。对马家坡隧道ZK140+660~ZK141+100段施工过程中所检测的瓦斯含量数据进行了统计和分析,对掌子面出现煤层的位置取煤样测试了吨煤瓦斯含量,通过间接法测试了瓦斯压力,计算出了瓦斯绝对涌出量,具体参数如下:吨煤瓦斯含量值2.75 m3/t,瓦斯压力值0.18 MPa,瓦斯绝对涌出量2.06 m3/m  相似文献   
984.
艺术与自然的关系,一直是西方古典美学中一个争论不休的问题。从古希腊到近代德国的美学家们都曾加以思考,并提出了不同的看法。作为德国古典美学代表人物之一的谢林,对艺术与自然的看法与他对艺术本质的理解是一致的。他反驳了两种流行的观点,并提出自己的独特理念。谢林的看法,与康德和黑格尔有所不同。谢林的论述,对我们今天认识艺术与自然、人与自然之关系仍有借鉴意义。  相似文献   
985.
The hijab, the headscarf and cloak worn by some Muslim women, is often viewed through a lens of constraint, but in this article I emphasize its flexible use by women in Qatar, a wealthy, conservative Arabian Gulf nation. As part of a neoliberal agenda, the Qatari government frequently depicts female citizens using an “empowered woman” narrative that touts increased college enrollment, workforce participation, and sports involvement as evidence of a progressive gender milieu. Yet Qatar continues to be steeped in patriarchy and institutional gender discrimination. This domination finds its most visible expression in the scrutiny and regulation of women's clothing. In this article, I describe how Qatari women strategically modify, adjust, reimagine, and remove their hijabs to suit changing circumstances. These hijab micropractices—women's strategic and situational use of traditional Muslim clothing—are at times so infinitesimal they are easy to overlook. Yet they are significant because they enable Qatari women to exercise agency within the confines of clothing that is believed to signify Islamic patriarchy and female oppression. I argue that hijab micropractices are a means by which Qatari women resist these conditions, while maintaining a religious identity and commitment to family.  相似文献   
986.
Electronically assisted survey techniques offer several advantages over traditional survey techniques. However, they can also potentially introduce biases, such as coverage biases and measurement error. The current study compares the relative merits of two survey distribution and completion modes: email recruitment with internet completion; and door to door recruitment with either tablet or internet completion. Presentation mode is held constant so that we are able to separate the impacts of recruitment mode and completion mode on responses. Recruitment mode appeared to influence both response rates and which socio-demographic groups were represented. However, the difference between the two recruitment modes was relatively small. Completion mode appeared to have little or no impact on responses although it did influence completion times. The email distributed survey performed better with regard to time costs and the number of respondents obtained. Differences between the two survey modes appeared to be largely due to recruitment method rather than completion mode.  相似文献   
987.
A common motivation for adding control variables to statistical models is to reduce the potential for spurious findings when analyzing non-experimental data and to thereby allow for more reliable causal inferences. However, as I show here, unless all potential confounding factors are included in an analysis (which is unlikely to be achievable with most real-world data-sets), adding control variables to a model in many circumstances can make estimated effects of the variable(s) of interest to the researcher on the dependent variable less accurate. Due to this fact, in some circumstances omitting control variables, even those that affect the dependent variable and are correlated with the variable(s) of interest, may allow for more accurate estimates of the effect(s) of the variable(s) of interest.  相似文献   
988.
In this paper, we propose a method to jointly incorporate measurement error and non response in the estimators of population mean using auxiliary information in simple random sampling. We have not only studied some available estimators but also suggested three new estimators in the presence of two types of non sampling errors occurring jointly: the measurement error and the non response. The expressions for the bias and mean square errors of proposed estimator have been derived. A comparative study is made among the proposed estimators, the Hansen and Hurwitz (1946 Hansen, M.H., Hurwitz, W.N. (1946). The problem of non-response in sample surveys. J. Am. Stat. Assoc. 41:517529.[Taylor &; Francis Online], [Web of Science ®] [Google Scholar]) estimator, the Cochran's (1977 Cochran, W.G. (1977). Sampling Techniques, 3rd Edn. New York: John Wiley &; Sons, Inc. [Google Scholar]) estimator, and the Singh and Kumar (2008 Singh, H.P., Karpe, N. (2008). Estimation of population variance using auxiliary information in the presence of measurement errors. Stat. Trans. New Ser. 9(3):443470. [Google Scholar]) estimator.  相似文献   
989.
An investment and consumption problem is formulated and its optimal strategy is investigated. We assume the basic binary model, but with unknown parameters. We apply the parametric Bayesian approach to formulate the problem as a sequential stochastic optimization model and use the technique of dynamic programming to characterize the optimal strategy. It is discovered that despite unknown parameters, when the power and logarithmic utility functions are treated, the optimal value function is of the same form of the utility function. The random finite horizon model is formulated as an infinite horizon model. Our results are similar to the ones in the literature having different return functions with constant relative risk aversion.  相似文献   
990.
A direct parametric test is proposed to detect monotonic and non-monotonic types of heteroscedasticity. After giving brief information about non-monotonic types of heteroscedasticity, the test algorithm is introduced. Proposed test and usual heteroscedasticity tests are compared on monotonic and non-monotonic types of heteroscedasticity in real and artificial data.  相似文献   
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