全文获取类型
收费全文 | 1506篇 |
免费 | 54篇 |
国内免费 | 16篇 |
专业分类
管理学 | 72篇 |
民族学 | 27篇 |
人口学 | 60篇 |
丛书文集 | 198篇 |
理论方法论 | 89篇 |
综合类 | 956篇 |
社会学 | 100篇 |
统计学 | 74篇 |
出版年
2023年 | 6篇 |
2022年 | 10篇 |
2021年 | 30篇 |
2020年 | 18篇 |
2019年 | 25篇 |
2018年 | 21篇 |
2017年 | 20篇 |
2016年 | 26篇 |
2015年 | 29篇 |
2014年 | 72篇 |
2013年 | 81篇 |
2012年 | 68篇 |
2011年 | 69篇 |
2010年 | 79篇 |
2009年 | 86篇 |
2008年 | 93篇 |
2007年 | 71篇 |
2006年 | 67篇 |
2005年 | 75篇 |
2004年 | 73篇 |
2003年 | 125篇 |
2002年 | 172篇 |
2001年 | 119篇 |
2000年 | 89篇 |
1999年 | 14篇 |
1998年 | 4篇 |
1997年 | 4篇 |
1996年 | 4篇 |
1995年 | 4篇 |
1994年 | 4篇 |
1993年 | 1篇 |
1992年 | 2篇 |
1991年 | 3篇 |
1990年 | 3篇 |
1988年 | 3篇 |
1987年 | 2篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1980年 | 1篇 |
1977年 | 1篇 |
排序方式: 共有1576条查询结果,搜索用时 15 毫秒
101.
This paper analyzes the data from the Population Census of 2011 to identify the characteristics of poor ethnic minority groups in Hong Kong and the factors that are associated with child poverty among these ethnic minorities. The results show that the child poverty level varies between different ethnic groups and that ethnic minorities from developing nations are likely to have a higher poverty level. In particular, Pakistani children have the highest poverty rate among all ethnic groups. The results also show that Pakistani, Nepalese, and Mixed (Chinese and Asian) nationalities have a higher child poverty rate than that of Chinese individuals who constitute the majority of the Hong Kong population. The main reason for this is that, unlike their Chinese counterparts, some of these ethnic minority households have not benefited from their own human capital or their length of exposure in the local society in Hong Kong. And even if they have benefited, the positive impact of these factors on ethnic minority households was much weaker compared to that of Chinese households. These results suggest that ethnic minorities need to be categorized as a separate group in order to assess their specific needs, and assimilation policies, especially support on Chinese language learning, need to be an integral part of the government’s poverty reduction strategy to reduce child poverty among ethnic minorities. 相似文献
102.
103.
网络创新背景下隐私关注与保护意图跨情境研究——以购物、招聘、游戏和搜索行业为例 总被引:1,自引:0,他引:1
企业利用新技术、新手段收集、分析和处理消费者信息以供市场分析时使用,其间蕴涵的信息安全及用户隐私外泄等问题始终困扰着企业.为解决该问题,学术界以网络隐私为中心展开研究,考察了单一情境下隐私关注对保护意图的影响,但是在跨情境的环境下两者的变化情况及两者之间关系的变化趋势还有待研究.为此,基于任务类型理论提炼4个网站类型(购物、招聘、游戏和搜索),再根据期望价值理论提出假设.经实验室实验研究表明,在C2C购物情境中隐私关注对保护意图具有显著的正向影响,而在招聘、游戏和搜索情境中的影响不显著.在这4类网络情境间,隐私关注差异不显著但保护意图差异显著.最后,基于研究发现向学者及管理实践者提出了建议. 相似文献
104.
管理人员工作压力与工作效率的影响研究——以国有企业与民营企业为例 总被引:3,自引:0,他引:3
本文对我国国有与民营企业管理人员工作压力对工作效率的影响进行了研究。结果显示,民营企业管理人员工作压力对工作效率的影响值明显高于国有企业管理人员。通过对两类企业管理人员工作压力对工作效率影响比较发现,国有企业管理人员由于工作压力较低,从而导致工作效率也较低;民营企业管理人员工作压力较高,而且带来的工作效率也较高。进一步研究发现,民营企业管理人员的工作压力相对于国有企业管理人员来说比较高,但是也没有达到“临界值”,从而使管理人员工作效率没有得到最大程度的发挥。因此,在目前的状况下,为了提高管理人员的工作效率,两类企业完全有增加其工作压力的必要。 相似文献
105.
Anthony B. L. Cheung 《Public Organization Review》2006,6(3):221-236
This article examines the degree of autonomy of Hong Kong’s Airport Authority (AA). Traditionally, airport management in Hong Kong was the responsibility of the government’s Civil Aviation Department. The AA was established in 1995 to manage the new international airport at Chek Lap Kok which opened in 1998. It was expected to run as a commercial enterprise but, because of its strategic importance, there was concern that it should not become an independent empire detached from government control. As a hybrid type of organization, the AA has moved steadily towards full commercialization. The government has also put its privatization on the agenda. Its transformation may have some implications for the redefinition of the future autonomy boundaries of public corporations in Hong Kong.
相似文献
相似文献
106.
107.
This paper considers a supply chain with one supplier and multiple retailers that face exogenous heterogeneous end‐customer demands, where all parties utilize base‐stock policies. Each retailer is restricted to order once in every order cycle and their orders are replenished in a balanced manner within the cycle. Our study investigates the impact of information sharing and advance order information (AOI) on the supply chain. We find that the supplier benefits from the two mechanisms via two important factors, the information about observed end‐customer demands and the decision on re‐establishing the replenishment sequence. We derive the supplier's optimal sequence for stochastically comparable end‐customer demands with AOI and propose a sequencing rule for the setting with information sharing. Our numerical study examines the cost impacts of two proposed mechanisms on the entire supply chain. 相似文献
108.
利用带限制的混料均匀方法对三维打印成形的粉末配方进行试验设计.对试验数据进行多元非线性回归分析,验证了石膏基粉末中各个成分对三维打印成形制件的影响规律.结果表明,粉末中石膏含量是影响制件密度的关键因素,而聚乙烯醇则可以显著提高制件的表面质量,减小尺寸变形量,白碳黑和聚乙烯醇的交互作用对制件密度和尺寸变形量也有一定的影响. 相似文献
109.
In terms of the risk of making a Type I error in evaluating a null hypothesis of equality, requiring two independent confirmatory trials with two‐sided p‐values less than 0.05 is equivalent to requiring one confirmatory trial with two‐sided p‐value less than 0.001 25. Furthermore, the use of a single confirmatory trial is gaining acceptability, with discussion in both ICH E9 and a CPMP Points to Consider document. Given the growing acceptance of this approach, this note provides a formula for the sample size savings that are obtained with the single clinical trial approach depending on the levels of Type I and Type II errors chosen. For two replicate trials each powered at 90%, which corresponds to a single larger trial powered at 81%, an approximate 19% reduction in total sample size is achieved with the single trial approach. Alternatively, a single trial with the same sample size as the total sample size from two smaller trials will have much greater power. For example, in the case where two trials are each powered at 90% for two‐sided α=0.05 yielding an overall power of 81%, a single trial using two‐sided α=0.001 25 would have 91% power. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
110.
The paper aims to find variance balanced and variance partially balanced incomplete block designs when observations within blocks are autocorrelated and we call them BIBAC and PBIBAC designs. Orthogonal arrays of type I and type II when used as BIBAC designs have smaller average variance of elementary contrasts of treatment effects compared to the corresponding Balanced Incomplete Block (BIB) designs with homoscedastic, uncorrelated errors. The relative efficiency of BIB designs compared to BIBAC designs depends on the block size k and the autocorrelation ρ and is independent of the number of treatments. Further this relative efficiency increases with increasing k. Partially balanced incomplete block designs with autocorrelated errors are introduced using partially balanced incomplete block designs and orthogonal arrays of type I and type II. 相似文献