全文获取类型
收费全文 | 19220篇 |
免费 | 344篇 |
国内免费 | 1篇 |
学科分类
社会科学 | 19565篇 |
出版年
2021年 | 112篇 |
2020年 | 274篇 |
2019年 | 374篇 |
2018年 | 437篇 |
2017年 | 598篇 |
2016年 | 471篇 |
2015年 | 347篇 |
2014年 | 456篇 |
2013年 | 2982篇 |
2012年 | 630篇 |
2011年 | 608篇 |
2010年 | 443篇 |
2009年 | 369篇 |
2008年 | 441篇 |
2007年 | 458篇 |
2006年 | 452篇 |
2005年 | 438篇 |
2004年 | 401篇 |
2003年 | 374篇 |
2002年 | 416篇 |
2001年 | 519篇 |
2000年 | 529篇 |
1999年 | 460篇 |
1998年 | 339篇 |
1997年 | 309篇 |
1996年 | 321篇 |
1995年 | 301篇 |
1994年 | 283篇 |
1993年 | 288篇 |
1992年 | 342篇 |
1991年 | 316篇 |
1990年 | 285篇 |
1989年 | 290篇 |
1988年 | 288篇 |
1987年 | 250篇 |
1986年 | 243篇 |
1985年 | 277篇 |
1984年 | 266篇 |
1983年 | 250篇 |
1982年 | 215篇 |
1981年 | 180篇 |
1980年 | 164篇 |
1979年 | 194篇 |
1978年 | 176篇 |
1977年 | 159篇 |
1976年 | 134篇 |
1975年 | 157篇 |
1974年 | 118篇 |
1973年 | 115篇 |
1972年 | 93篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Chan JB 《The British journal of sociology》1999,50(2):251-270
The advent of public-sector managerialism has brought with it a new principle of police accountability in Western democracies such as Australia and Britain. The new accountability gives emphasis to managerial rather than legal or public-interest standards, favours external oversight combined with self-regulation rather than centralized control, and promotes risk management rather than rule enforcement. This article makes use of the experience of an Australian police force to show that the new accountability has not been successful in holding police accountable, while elements of the old accountability have re-emerged to dominate public debates. It is argued that in the area of police governance, the neo-liberal state does not necessarily pursue a coherent strategy of 'acting at a distance' (cf. Miller and Rose 1990), partly because of the inability of accountability technologies to deliver substantially the promised policy outcomes and partly because of the sensitivity of its political arm to the public's moral outrage against corruption (cf. Garland 1996). 相似文献
992.
We investigate the computational complexity of two special cases of the Steiner tree problem where the distance matrix is a Kalmanson matrix or a circulant matrix, respectively. For Kalmanson matrices we develop an efficient polynomial time algorithm that is based on dynamic programming. For circulant matrices we give an
-hardness proof and thus establish computational intractability. 相似文献
993.
Downsizing and managed care in the 1990s followed the psychiatric hospital scandals and closures of the 1980s. Many families are now unable to provide care for their troubled children. Childhood emotional or behavioral disorders have rapidly spread beyond the confines of the home into a community that has adopted a "zero tolerance" for crime. Intolerance for childhood criminal behavior has resulted in an explosion of children's prisons where, in the name of rehabilitation, many are finally receiving psychological help. This article discusses the decreased treatment of childhood psychiatric disorders and the increased admissions to children's prison facilities. 相似文献
994.
1 In this era of rapidly changing mental health services and new psychotropic drugs, health professionals are challenged to develop and maintain psychopharmacology competencies. 2 The Psychopharmacology RACE provides an interactive and learner-oriented method of developing and assessing theoretical and clinical competencies for psychopharmacology. 3 The Psychopharmacology RACE is also well suited for modification and application toward the professional development of nurses and the education of clients. 相似文献
995.
Three hundred forty-two students at 3 Florida medical schools were surveyed concerning occupational exposures to blood and body fluids during their 3rd-year clerkship. The 16-item questionnaire was anonymously returned by 150 students, and differences among groups were assessed at p < .05. Most of the students complied with universal precautions guidelines (UVPG); 62 reported 101 exposures, including 9 with HIV-positive blood and body fluids. Most of the exposed students knew about the guidelines but regarded the incidents as irrelevant to their safety or supervision training. Noncompliant students reported significantly more exposures than compliant students. Time constraints, inconvenience of using gloves during procedures, and belief that patients were at low HIV risk discouraged adherence to the guidelines. Common practices following exposure were "no action" or "washed area only" without medical follow-up. Medical students' UVPG adherence should be increased by workload modification, user-friendly safety products, and supervised practice training in clinical exposure settings. 相似文献
996.
Irvin DJ 《Journal of psychosocial nursing and mental health services》1999,37(12):8-16
Patient falls in psychiatric units may have an impact on patient outcomes. Fall risk assessment among psychiatric patients is an important issue. Gait/balance problems and history of falling are important considerations in assessing psychiatric patients for fall risk. 相似文献
997.
998.
This study examines the seventy-five suicide cases Dr. Jack Kevorkian acknowledged assisting during the period between 1990-1997. Although these cases represent a range of regional and occupational backgrounds, a significant majority are women. Most of these individuals had a disabling, chronic, nonterminal-stage illness. In five female cases, the medical examiner found no evidence of disease whatsoever. About half of the women were between the ages of forty-one and sixty, and another third were older adults. Men's conditions were somewhat less likely than women's to be chronic and nonterminal-stage. The main reasons for the hastened death mentioned by both the person and their significant others were having disabilities, being in pain, and fear of being a burden. The predominance of women among Kevorkian's assisted suicides contrasts with national trends in suicide mortality, where men are a clear majority. It is possible that individuals whose death was hastened by Kevorkian are not representative of physician-assisted suicide cases around the country, because of Kevorkian's unique approach. Alternatively, the preponderance of women among Kevorkian's assisted suicides may represent a real phenomenon. One possibility is that, in the United States, assisted suicide is particularly acceptable for women. Individual, interpersonal, social, economic, and cultural factors encouraging assisted suicide in women are examined. 相似文献
999.
Kaplan KJ Lachenmeier F Harrow M O'Dell JC Uziel O Schneiderhan M Cheyfitz K 《Omega》1999,40(1):109-163
This article examines biomedical and psychosocial data on the first forty-seven cases of physician-assisted suicide (PAS) of Kevorkian as collected by means of both a physical autopsy and a preliminary psychological autopsy. The following patterns emerge: 1) The physical condition of these PAS patients was not typical of the conditions that lead to death in the United States. 2) Consistent with the above findings, our pilot data indicate that only 31.1 percent of these patients were terminal. While 73.9 percent were described as reporting pain, only 42.6 percent were revealed at autopsy to have a specific anatomical basis for their pain. However 36 percent were described as depressed, 66 percent as having some disability, and perhaps of key importance, 90 percent expressed a fear of dependency. Most important, our pilot data suggest the possibility of large gender differences, since 3) 68.1 percent of these forty-seven PAS's are women and only 31.9 percent are men. This represents the reverse of the gender pattern for completed suicides in the United States in 1995, resembling instead the approximate pattern for unsuccessful suicide attempts. 4) Approximately 75 percent of both men and women in the above sample were described as reporting pain. Men were almost twice as likely to have had an anatomical basis for the pain and three times as likely to be terminal. Our pilot data indicate PAS women are more likely to be described as depressed and twice as likely to have had a history of previous unsuccessful suicide attempts. 5) Kevorkian's patients were older than the typical unaided suicides in America. Reported pain decreases with age as does depression; however anatomical basis for pain increases slightly with age, and no age effect emerges for terminality. 6) Approximately two-thirds of those physician-assisted suicides were at middle SES levels. History of disability was the biggest risk factor for the low SES patients and fear of dependency for the high SES patients. 相似文献
1000.
Ninety-six students were presented with eighteen different vignettes describing different types of active and passive observed suicide, assisted suicide, and euthanasia. Attitudes regarding the morality and desired legality of each situation were measured. Results indicated that the interaction between the doctor and the patient, and, to a lesser extent, the active or passive nature of the agent of death, were more important than the actual actions of the doctor in allowing or causing death to occur. 相似文献