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991.
网络传媒对中国当代文学的巨大影响   总被引:1,自引:1,他引:0  
20世纪90年代以后中国当代文学的主流是网络文学,网络文学的形成得力于网络传媒。网络传媒诞生以来,对中国当代文学产生了巨大影响,引发了一场"新文化运动"。这场新文化运动,使文学写作者队伍空前壮大,中国文学传统观念发生了历史性的改变,文学新品种也不断增加,促使中国当代文学迅速走向平民化、多元化的道路。  相似文献   
992.
993.
Drug-related violence is now an everyday occurrence in Mexico's northern border-states. While it often appears that all crimes are on the rise in the border region, the actual number of alleged offenders caught and brought to court differs significantly for different types of crime. Using panel data for Mexico's 31 states plus the Federal District from 2004 to 2008, it was found that there were more alleged offenders caught per 100,000 inhabitants involving theft, property damage, and carrying prohibited arms, in Mexico's northern border-states compared to interior states. The effects of other socioeconomic variables on crime in Mexico, such as GDP, incarceration rates, births to single mothers and expenditures on public security, were also examined.  相似文献   
994.
应用方程估计与曲线拟合的方法,在国内外高管薪酬快速增长的背景下,以2001-2008为时间窗口,研究了沪深两市金融类上市公司高管薪酬结构和薪酬水平与公司绩效的相关性问题,通过绩效评价模型和回归模型的求解,实证研究发现,我国金融类上市公司高管薪酬水平和薪酬结构与公司绩效均基本无关,国有金融类上市公司高管薪酬明显高于非国有金融类上市公司高管薪酬,而其绩效差异却不显著,说明我国政府对国有金融类上市公司高管薪酬实行限制,符合市场经济发展规律和基本要求,但在非国有金融类上市公司内及其他垄断性行业内,高管薪酬的差别也较大。因此,也有必要将这种限制拓展到非国有金融企业以及其它垄断性行业。  相似文献   
995.
This study examines the individual effects of product diversification on performance and the moderating effects of international diversification on the product diversification–performance link in the context of a boom and bust cycle. Most prior research on firm strategies largely neglect the business cycle. We use data on a large sample of Spanish manufacturing firms from 1994 to 2014. In this period, the Spanish economy experienced a boom period (1994–2008) and a bust period involving a severe economic crisis (2009–2014). Our study highlights the important role of each stage of the economic cycle. Specifically, with respect to product diversification, our findings show that in a boom, moderate diversifiers obtain better profitability levels than their highly diverse or limited diversification counterparts do. In contrast, during an economic downturn, moderate and high diversifiers can be equally effective up to some point of optimization. Our findings also reveal a negative and significant effect of internationalization on profitability, independent of the stage of the economic cycle. Product and international diversification are complementary strategies during a period of economic growth when firms opt for moderate levels of product diversification. Meanwhile, when firms choose high levels of product diversification, both types of strategies are complementary during the boom cycle, but substitutive during the bust cycle.  相似文献   
996.
This paper examines the story of the evolution of a specific industry through the application of dynamic strategic group analysis. In particular, we analyse the relationship between major environmental disturbances and changes that have occurred over time in the competitive structure of the industry regarding two closely related central questions. First, the way in which these environmental transformations have influenced group patterns and stability, and second, the way in which such environmental disturbances has affected the strategic positioning of individual firms. We resort to alternative theoretical perspectives in an attempt to answer both questions. The empirical setting is the population of Spanish banks over the period 1983–1997. We make use of a new grouping algorithm – the Model‐based Clustering or MCLUST – which may be enormously fruitful in future empirical works on strategic groups. This method allows researchers to obtain the optimal number of groupings over time in a much more objective way than the cluster techniques used until now. Compared to previous dynamic studies that only consider the largest firms, our research illustrates how a richer analysis of an industry dynamics can be obtained by using a dynamic analysis of strategic groups. Our results show that while there have been no industry‐wide identical groupings year to year, there is an important strategic stability at group and firm‐level punctuated by a high degree of strategic instability at times of major environmental disturbances.  相似文献   
997.
An important task in the theory of hypercubes is to establish the maximum integer f n such that for every set ℱ of f vertices in the hypercube Qn,{\mathcal {Q}}_{n}, with 0≤ff n , there exists a cycle of length at least 2 n −2f in the complement of ℱ. Until recently, exact values of f n were known only for n≤4, and the best lower bound available for f n with n≥5 was 2n−4. We prove that f 5=8 and obtain the lower bound f n ≥3n−7 for all n≥5. Our results and an example provided in the paper support the conjecture that fn=((n) || 2)-2f_{n}={n\choose 2}-2 for each n≥4. New results regarding the existence of longest fault-free paths with prescribed ends are also proved.  相似文献   
998.
This study focuses on the analysis of the influence of organizational design variables on the creation of knowledge within the firm. The impact that enablers have on knowledge creation has been widely demonstrated and established by the relevant literature. Using this assumption as a starting point, this study will consider and explore the role that mechanisms of integration and coordination play in the creation of knowledge, considering enablers as intermediate variables. In this way, we can create a model of the relationships between these variables and contrast them with an empirical investigation of a quantitative nature, using a sample of 167 large Spanish firms. Despite the fact that the theoretical framework in question is characterized by a direct and positive connection between the standardization of work processes and knowledge creation, the results suggest that the relation is not significant. All the other coordination mechanisms, however, do have a significant influence on the creation of knowledge: standardization of skills through the autonomy enabler; standardization of outputs through intention; interventions for socialization through intention and trust and commitment; and, lastly, mutual adjustment whose influence is found in redundancy and variety.  相似文献   
999.
This paper evaluates the execution of an ERP – enterprise resource planning in a production process. The changes that were made to processes to make them compatible with ERP modules and adaptations that were required by the ERP implementation are presented. The presented study is different from the normal patterns of a vertical implementation, since its application is not direct. In order to use the standard modules of the ERP system, the internal processes were embellished and the data collection steps were integrated into the production process (production orders, inventory, production, daily consumption, daily output). The case study shows that the ERP implementation caused an improvement of the processes in the areas adjacent to production (purchasing, logistics, distribution, supply and sales). In conclusion, this paper presents the main advantages and disadvantages of the ERP system implementation, as well as some considerations and recommendations for the future ERP implementations.  相似文献   
1000.

Background

Oxytocin is the most widely used drug in the induction of labor, but it could have potential adverse effects that derive from uterine hyperstimulation.

Aim

To determine the benefits and drawbacks of oxytocin continuation versus oxytocin discontinuation after the active phase of induced labor.

Methods

We systematically searched Pubmed, EMBASE, Scopus, ClinicalTrials.gov and Cochrane Library Plus until October 2017, for randomized controlled trials comparing oxytocin continuation with oxytocin discontinuation when the active phase of labor is reached were included. Data was collected by three reviewers and quality of the included studies assessed using the methodology recommended in the Cochrane Handbook. StatsDirect software was used to calculate risk ratios for binary variables and weighted mean differences for continuous variables. A fixed-effects or random-effects model was used as appropriate.

Results

Nine studies were selected including 1538 women, 774 in the oxytocin continuation group and 764 in the oxytocin discontinuation group. The incidence of cesarean sections (14.3% vs. 8.6%; relative risk, 1.67; 95% confidence interval: 1.25–2.23), uterine hyperstimulation (12.4% vs. 4.7%; relative risk, 2.59; 95% confidence interval: 1.70–3.93) and nonreassuring fetal heart rate (19.2% vs.12.5%; relative risk, 1.55; 95% confidence interval: 1.18–2.02) were significantly higher in the oxytocin continuation group. An increase in the duration of the second stage of labor in the oxytocin discontinuation group was observed (pooled mean difference, ?7.03; 95% confidence interval: ?9.80 to ?4.26).

Conclusions

After the active phase of induced labor, oxytocin continuation increases the risk of cesarean section, uterine hyperstimulation and alterations to the fetal heart rate.  相似文献   
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