全文获取类型
收费全文 | 21396篇 |
免费 | 497篇 |
专业分类
管理学 | 2433篇 |
民族学 | 157篇 |
人才学 | 6篇 |
人口学 | 2517篇 |
丛书文集 | 106篇 |
教育普及 | 2篇 |
理论方法论 | 1812篇 |
现状及发展 | 1篇 |
综合类 | 302篇 |
社会学 | 10623篇 |
统计学 | 3934篇 |
出版年
2023年 | 91篇 |
2022年 | 75篇 |
2021年 | 92篇 |
2020年 | 281篇 |
2019年 | 452篇 |
2018年 | 893篇 |
2017年 | 1074篇 |
2016年 | 789篇 |
2015年 | 359篇 |
2014年 | 434篇 |
2013年 | 3106篇 |
2012年 | 739篇 |
2011年 | 968篇 |
2010年 | 774篇 |
2009年 | 686篇 |
2008年 | 744篇 |
2007年 | 822篇 |
2006年 | 454篇 |
2005年 | 481篇 |
2004年 | 490篇 |
2003年 | 464篇 |
2002年 | 407篇 |
2001年 | 469篇 |
2000年 | 386篇 |
1999年 | 375篇 |
1998年 | 307篇 |
1997年 | 278篇 |
1996年 | 296篇 |
1995年 | 272篇 |
1994年 | 257篇 |
1993年 | 248篇 |
1992年 | 289篇 |
1991年 | 287篇 |
1990年 | 258篇 |
1989年 | 257篇 |
1988年 | 249篇 |
1987年 | 226篇 |
1986年 | 218篇 |
1985年 | 246篇 |
1984年 | 234篇 |
1983年 | 233篇 |
1982年 | 177篇 |
1981年 | 155篇 |
1980年 | 170篇 |
1979年 | 169篇 |
1978年 | 141篇 |
1977年 | 140篇 |
1976年 | 122篇 |
1975年 | 115篇 |
1974年 | 96篇 |
排序方式: 共有10000条查询结果,搜索用时 796 毫秒
991.
Lüdtke A Javaux D Tango F Heers R Bengler K Ronfle-Nadaud C 《Work (Reading, Mass.)》2012,41(Z1):4250-4257
The paper presents a new approach to the development of cooperative human-machine systems in the Transportation domain which is currently researched in the European project D3CoS. A necessary precondition for the acceptance of cooperative human-machine systems with shared control is the confidence and trust of the user into the system. D3CoS tackles this important issue by addressing the cooperative system as the object and the target of the system development process. This new perspective, along with corresponding innovative methods, techniques and tools, shall allow the identification of optimal task and authority sharing approaches supported by intuitive human-machine interaction and user interfaces at an early stage of system development. This will support powerful teamwork between humans and machines or between machines and machines that is transparent, intuitive and easy to understand. The paper describes the research dimensions for the development of the methods, techniques and tools as well as first results. 相似文献
992.
This study investigates how future informatics applications can support and challenge intensive care nurses (ICU nurses) to grow and learn continuously. To this end a research-and-design tool is introduced which is based on a model of the nursing process that starts from the idea that a nurse fulfills three different roles: the role of practitioner (using information immediately to base actions upon), the role of scholar (using information later on to learn from) and the role of human (coping with stress and dealing with emotions). In this paper the focus is on the scholar role. Twenty-eight intensive care staff members from six different hospitals were asked to recount an imposing experience from the perspective of each role. Regarding the scholar role, the participants mentioned 77 learning strategies they adopt for individual as well as organizational learning. Individual learning concerned reflection on former patient cases, reflection on current patient cases to anticipate a change in the patient's condition and reflection on personal behavior and decisions. Organizational learning concerned reflection on former patient cases. Examples of specific strategies were formal team evaluations focused on procedure and understanding the perspective of team members, being present at autopsies, and giving feedback on the nursing skills of colleagues. Based on these strategies design implications are defined for future nursing informatics applications, which will be presented. 相似文献
993.
Little attention has been given to the vulnerable populations of migrant women agricultural workers. A systemic review in PubMed was carried out (1990-2008) using terms related to migrant agricultural workers, with specific focus on women. Case studies from Lebanon and California are presented to highlight key physical, psychosocial, and cultural risk factors among these working populations. The review revealed a host of potential problems that span from pesticide exposure and musculoskeletal disorders to socio-cultural barriers. Comprehensive exposure-outcome and intervention studies focusing specifically on migrant women in agriculture are lacking. In depth studies focusing on the work environment of migrant women workers in the agricultural sector are needed. Personal and environmental factors that influence health should be considered in any effective intervention aiming to influence policy making and have a positive impact on these vulnerable working populations. 相似文献
994.
Sexual abuse of children has been a topic of scientific investigation for the past few decades. Research in this area, however, is rarely initiated, conceptualized, and conducted by victims themselves. Apart from possibly having painted a one-sided picture of sexual abuse, this presumed dominance of nonvictims might also have marginalized victims in a research area central to their lives. This study was conducted by a victims interest group as an effort to meet the need to add victims' perspectives to our current understanding of this topic. The online survey focused on investigating victims' psychosocial impairment, which was found to be extensive. Results indicated that an intact social support system facilitates better health, especially when offered early on. 相似文献
995.
This paper presents the Ergonomic Work Analysis method in a Brazilian Dentist's office. Through the study, the constraints and the strategies in avoiding them were identified. It was found that dentists hardly use the position most indicated by the International Organization for Standardization (ISO) and the Federation Dentaire Internacionale (FDI) for both the patient and the dentist, which is respectively supine and 9 o'clock, due to the limited space and layout. Five types of treatments performed by the professional have been studied. The frequency and duration of actions in these treatments were accounted for and the standard positions adopted were identified. The AET was found to be a very suitable method to grasp the dentist's activity and build a point of view of the profession, which is characterized as: stressful, perfectionist and restrictive. Time management is presented as an important strategy to control the tension arising from performing the treatments. 相似文献
996.
997.
Urbanization is a pervasive and growing threat to amphibian populations globally. Although the number of studies is increasing,
many aspects of basic amphibian biology have not been investigated in urban settings. We reviewed 32 urban studies from North
America and quantified the number of species studied and their response to urbanization. We examined existing research on
breeding habitats, life-history stages, movement patterns, and habitat use relative to urbanization. We found amphibians as
a whole respond negatively to urbanization (69 reported responses were negative, 6 were positive and 35 showed no effect).
We caution, however, that many North American species still lack or are associated with conflicting information regarding
species-specific responses (e.g., 89 potential responses were unknown). Approximately 40% of all anuran and 14% of caudate
species in North America were investigated in the literature; however, the most diverse genera (e.g., Plethodon and Eurycea) were the most understudied likely due to their cryptic terrestrial lifestyles and biases in sampling protocols that assess
wetland habitats via call surveys. Research on movement and small scale habitat use was deficient. Adult, juvenile, tadpole,
and egg mass life-history stages commonly served as direct measures of species presence and abundance; however, such data
do not accurately reflect recruitment into subsequent age classes and population persistence. The lack of data on many North
American species may be contributing to poor management of urban amphibian populations and their habitats. 相似文献
998.
999.
James A. Banks 《Intercultural Education》2012,23(6):467-473
Since the 1990s, ethnic studies and other components of multicultural education have been criticized by neo-conservative and assimilationist scholars who maintain that school diversity initiatives weaken national identity and fail to help students attain the knowledge, attitudes, and skills needed to function effectively in the national mainstream culture. The banning of ethnic studies courses in the Tucson (Arizona) Unified School District in the USA was a widely publicized manifestation of the neo-conservative response to multicultural school initiatives. This article describes neo-conservative critiques of ethnic studies, and argues that ethnic studies is an important component of US history that is required to help students become effective and thoughtful citizens in a democratic nation and global world. 相似文献
1000.
Priv.Doz. Dr.phil.habil. Telse A. Iwers-Stelljes 《Gruppendynamik und Organisationsberatung》2012,43(4):371-387
The discussion of educational professionalization actually focuses on concepts of health promotion instead of disease prevention (e.g., Dauber und D?ring-Seipel, Salutogenese in Lehrberuf und Schule (SALUS), 2008). This paper follows the direction in presenting a method of promoting salutogenesis development (Antonovsky, Salutogenese. Zur Entmystifizierung der Gesundheit, 1997) by case reflections. These case reflections consist of a change of perspectives and of an approach of mental selfregulation called Introvision. 相似文献