全文获取类型
收费全文 | 3978篇 |
免费 | 218篇 |
国内免费 | 20篇 |
专业分类
管理学 | 1108篇 |
民族学 | 5篇 |
人才学 | 1篇 |
人口学 | 104篇 |
丛书文集 | 151篇 |
理论方法论 | 319篇 |
综合类 | 1534篇 |
社会学 | 833篇 |
统计学 | 161篇 |
出版年
2024年 | 4篇 |
2023年 | 56篇 |
2022年 | 22篇 |
2021年 | 39篇 |
2020年 | 106篇 |
2019年 | 112篇 |
2018年 | 133篇 |
2017年 | 175篇 |
2016年 | 120篇 |
2015年 | 115篇 |
2014年 | 210篇 |
2013年 | 667篇 |
2012年 | 203篇 |
2011年 | 218篇 |
2010年 | 168篇 |
2009年 | 168篇 |
2008年 | 190篇 |
2007年 | 211篇 |
2006年 | 207篇 |
2005年 | 168篇 |
2004年 | 140篇 |
2003年 | 106篇 |
2002年 | 131篇 |
2001年 | 79篇 |
2000年 | 76篇 |
1999年 | 59篇 |
1998年 | 39篇 |
1997年 | 42篇 |
1996年 | 24篇 |
1995年 | 27篇 |
1994年 | 45篇 |
1993年 | 16篇 |
1992年 | 23篇 |
1991年 | 20篇 |
1990年 | 12篇 |
1989年 | 12篇 |
1988年 | 28篇 |
1987年 | 13篇 |
1986年 | 8篇 |
1985年 | 3篇 |
1984年 | 6篇 |
1983年 | 6篇 |
1982年 | 6篇 |
1981年 | 3篇 |
排序方式: 共有4216条查询结果,搜索用时 15 毫秒
991.
学术活动的组织体系经历了漫长的演变,不同的时代呈现不同的特点。考察学术活动组织体系的演变及其特点,运用组织理论的成果分析学术组织体系的内在机制,得到对于实践导向管理研究的启示。 相似文献
992.
993.
高等教育作为一个场域有其自身的关系构型和惯习,本文依据布迪厄场域理论对我国新管理主义的教育评估问题进行了剖析,使我们清楚地认识到新管理主义的评估对高等教育场域的负面影响。“第四代评估”作为西方最新的评估理论,它与高等教育场域的可持续发展有着内在的联系,其全新的哲学范式与建构主义的方法论为我国教育评估问题的破解提供了路径。 相似文献
994.
The objective of this article is to characterize the risk of infection from airborne Mycobacterium tuberculosis bacilli exposure in commercial passenger trains based on a risk‐based probabilistic transmission modeling. We investigated the tuberculosis (TB) infection risks among commercial passengers by inhaled aerosol M. tuberculosis bacilli and quantify the patterns of TB transmission in Taiwan High Speed Rail (THSR). A deterministic Wells‐Riley mathematical model was used to account for the probability of infection risk from M. tuberculosis bacilli by linking the cough‐generated aerosol M. tuberculosis bacilli concentration and particle size distribution. We found that (i) the quantum generation rate of TB was estimated with a lognormal distribution of geometric mean (GM) of 54.29 and geometric standard deviation (GSD) of 3.05 quantum/h at particle size ≤ 5 μm and (ii) the basic reproduction numbers (R0) were estimated to be 0.69 (0.06–6.79), 2.82 (0.32–20.97), and 2.31 (0.25–17.69) for business, standard, and nonreserved cabins, respectively. The results indicate that commercial passengers taking standard and nonreserved cabins had higher transmission risk than those in business cabins based on conservatism. Our results also reveal that even a brief exposure, as in the bronchoscopy cases, can also result in a transmission when the quantum generation rate is high. This study could contribute to a better understanding of the dynamics of TB transmission in commercial passenger trains by assessing the relationship between TB infectiousness, passenger mobility, and key model parameters such as seat occupancy, ventilation rate, and exposure duration. 相似文献
995.
Philippe Hartemann 《Risk analysis》2011,31(2):228-236
This article reports a quantitative microbial risk assessment of the risk of Giardia and Cryptosporidium in very small private water supplies. Both pathogens have been implicated in causing outbreaks of waterborne disease associated with such supplies, though the risk of endemic disease is not known. For exposure assessments, we used existing data to derive regression equations describing the relationships between the concentration of these pathogens and Escherichia coli in private water supplies. Pathogen concentrations were then estimated using national surveillance data of E. coli in private water supplies in England and France. The estimated risk of infection was very high with the median annual risk being of the order of 25–28% for Cryptosporidium and 0.4% to 0.7% for Giardia, though, in the poorer quality supplies the risk could be much higher. These risks are substantially greater than for public water supplies and well above the risk considered tolerable. The observation that observed infection rates are generally much lower may indicate increased immunity in people regularly consuming water from private supplies. However, this increased immunity is presumed to derive from increased disease risk in young children, the group most at risk from severe disease. 相似文献
996.
997.
Sasarose Jaijit Naraphorn Paoprasert Juta Pichitlamken 《Journal of Policy Modeling》2019,41(1):156-167
This study explored the economic, social and environmental impact of Thai rice research expenditure (categorized as breeding expenditure, production expenditure and processing expenditure) during 2008–2015, using the simultaneous equation modeling technique. The results showed that production-research expenditure was the most explicit to reduce the amount of nitrogen fertilizer usage, while breeding-research expenditure was the most explicit in terms of increasing farmers’ economic status from planting rice. Processing expenditure seemed to be the least effective spending among the three types. 相似文献
998.
999.
Social work is a stressful occupation but continues to attract large numbers of students every year. This study was conducted by undergraduate students of all three cohorts at a women’s-only college in Tiruchirapalli in South India (N = 73). Standardised instruments to assess stress, anxiety, resilience and coping were administered. It was seen that anxiety and stress levels were relatively higher in the first- and third-year students while compared to those in the second year of their course, while resilience and coping was relatively low in the first-year group. Correlations were significantly positive for the stress and anxiety scores as well as the coping and resilience scores. However, it was seen that only the anxiety scores significantly predicted the manifestation of stress in the students. Implications of the findings and the limitations of the study have also been discussed. 相似文献
1000.
David B. Feldman 《Journal of social work in end-of-life & palliative care》2017,13(2-3):113-133
Although evidence-based therapies for Posttraumatic Stress Disorder (PTSD) exist for physically healthy populations, these often do not adequately address PTSD in dying patients. Particularly because these interventions require 8–16 weekly sessions, and the median stay in U.S. hospices is 17.5 days (National Hospice and Palliative Care Organization [NHPCO], 2015), there is a potentially serious timing mismatch. Moreover, these treatments may temporarily increase trauma symptoms (Nishith, Resick, &; Griffin, 2002), resulting in some patients dying in greater distress than had they not received care. The Stepwise Psychosocial Palliative Care (SPPC) model presented in this article compensates for these difficulties by embracing a palliative care approach to PTSD. Although it utilizes techniques drawn from existing PTSD interventions, these are re-ordered and utilized in a time-responsive, patient-centered manner that takes into account prognosis, fatigue, and logistical concerns. The SPPC approach is further considered with respect to existing social work palliative care competencies (Gwyther et al., 2005) and a case study is used to demonstrate its application. 相似文献