全文获取类型
收费全文 | 582篇 |
免费 | 21篇 |
专业分类
各国政治 | 35篇 |
工人农民 | 66篇 |
世界政治 | 69篇 |
外交国际关系 | 26篇 |
法律 | 259篇 |
中国政治 | 9篇 |
政治理论 | 133篇 |
综合类 | 6篇 |
出版年
2023年 | 8篇 |
2022年 | 2篇 |
2021年 | 4篇 |
2020年 | 11篇 |
2019年 | 15篇 |
2018年 | 27篇 |
2017年 | 19篇 |
2016年 | 19篇 |
2015年 | 15篇 |
2014年 | 12篇 |
2013年 | 91篇 |
2012年 | 18篇 |
2011年 | 14篇 |
2010年 | 16篇 |
2009年 | 14篇 |
2008年 | 25篇 |
2007年 | 31篇 |
2006年 | 22篇 |
2005年 | 25篇 |
2004年 | 21篇 |
2003年 | 18篇 |
2002年 | 15篇 |
2001年 | 12篇 |
2000年 | 8篇 |
1999年 | 12篇 |
1998年 | 6篇 |
1997年 | 5篇 |
1996年 | 13篇 |
1995年 | 9篇 |
1994年 | 5篇 |
1993年 | 6篇 |
1992年 | 6篇 |
1991年 | 7篇 |
1990年 | 10篇 |
1989年 | 6篇 |
1988年 | 11篇 |
1987年 | 4篇 |
1985年 | 2篇 |
1984年 | 5篇 |
1983年 | 4篇 |
1982年 | 2篇 |
1981年 | 5篇 |
1980年 | 4篇 |
1979年 | 2篇 |
1978年 | 5篇 |
1976年 | 4篇 |
1975年 | 2篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1943年 | 1篇 |
排序方式: 共有603条查询结果,搜索用时 9 毫秒
421.
当代公共管理研究的范式观--一项经验研究 总被引:1,自引:0,他引:1
以经验事实为依据,勾画出了指导当代美国公共管理研究的范式观.在经验分析的基础上,作者认为,有关公共管理领域是否具有知识核心及其与学科的发展之间的相关性的争论正越来越不重要,因为答案已经显现.重要的是从事公共管理研究的学者应具有清醒的学科自我意识以及对现有的范式有更为清晰的把握.公共管理学科对本领域的常规科学研究活动的自觉意识能够给本学科提供更为清晰的研究焦点,能够提升澄清谬见的敏锐性,进而推动公共管理理论的发展. 相似文献
422.
The Ubiquitous Family Environment: Examining Emotional Insecurity in the Family and Adjustment in School 下载免费PDF全文
Kathleen N. Bergman Grace E. Choe E. Mark Cummings Patrick T. Davies 《Family Court Review》2018,56(2):234-247
The present study examines adolescents' emotional insecurity and problem behaviors at school. Adolescents (n = 280; 136 boys, 144 girls, Median age = 13) and their parents reported on adolescents' emotional security and adjustment problems. Adolescents' teachers (n = 240) also reported on adolescents' school adjustment. Results support that emotional insecurity is related to adjustment problems in the home and at school. Emotional insecurity in the family system was a better predictor of adolescents' adjustment problems than emotional insecurity in the interparental relationship. Findings have implications for teachers, parents, school administrators and policy‐makers, as adolescents' problem behaviors at school can be explained by their emotional insecurity. 相似文献
423.
American Indian women across all ages are significantly more likely than women of other ethnic groups to be victims of domestic violence, sexual assault, and stalking. Despite their increased risk of interpersonal violence, there are few published studies or reports that explicitly examine the needs of victimized American Indian women. Therefore, both researchers and service providers know very little about the multifaceted needs of victimized American Indian women and whether current community services are meeting the needs of victimized native women. Identifying such needs is a logical next step so that victim service agencies can develop and effectively provide services tailored to victimized American Indian women. This commentary addresses these gaps by (1) identifying the needs of American Indian women in a domestic violence shelter in Arizona, and (2) highlighting the researcher-practitioner partnership that made it possible to gain access to these victims. Drawing on survey responses from 37 American Indian female clients and interviews with 10 staff members, the findings reveal that the domestic violence agency service provider is meeting many of their needs. Findings also indicate that clients have a wide variety of specific personal needs (e.g., safety, housing, transportation), needs relating to their children (e.g., safety, education, socialization), community needs (e.g., relating to their tribe), as well as legal needs (e.g., help obtaining a restraining order or divorce). These multifaceted needs are discussed and specific recommendations are provided for successful researcher-practitioner partnerships. 相似文献
424.
Holly Kathleen Hall 《Communication Law & Policy》2018,23(2):125-157
Global data protection laws can be described, at best, as contradictory in philosophy and practice. The 2015 decision by the Court of Justice for the European Union declaring the mechanism for data transfer between the United States and European Union known as “Safe Harbor” invalid and the criticism of its replacement, Privacy Shield, is representative of the conflict in this area. Such contention often stems from the differences in privacy rationales and theories of the United States and European Union. This article examines the recent developments in data protection regulations, and makes the argument that issues such as data protection, and specifically data shared with intelligence agencies, should be analyzed through the privacy principle of dignity and that the law of confidentiality should be applied to data protection cases, thereby instilling more harmony into the data privacy approaches of the United States and the European Union. 相似文献
425.
426.
Aalberg L Andersson K Bertler C Borén H Cole MD Dahlén J Finnon Y Huizer H Jalava K Kaa E Lock E Lopes A Poortman-van der Meer A Sippola E 《Forensic science international》2005,149(2-3):219-229
Reference material was synthesised for 21 substances that are frequently present as synthetic impurities, i.e. by-products, in illicitly produced amphetamine. Each of these substances is a typical by-product for at least one of the three approaches most often used to synthesise amphetamine, namely, the Leuckart, the reductive amination of benzyl methyl ketone, and the nitrostyrene routes. A large body of data on the substances was recorded, including the following: mass spectra, ultraviolet spectra, Fourier transform infrared spectra, infrared spectra in gas phase, and 1H NMR and 13C NMR spectra. 相似文献
427.
Aalberg L Andersson K Bertler C Cole MD Finnon Y Huizer H Jalava K Kaa E Lock E Lopes A Poortman-van der Meer A Sippola E Dahlén J 《Forensic science international》2005,149(2-3):231-241
The present study focused on the stability of 22 amphetamine impurities dissolved in six organic solvents: isooctane, toluene, ethanol, dichloromethane, ethyl acetate, and diethyl ether. The aim was to find the most inert, and thereby most suitable, solvent for amphetamine profiling. Mixtures of the impurities were prepared in the different solvents, and changes in the concentrations of the individual compounds over-time were monitored by gas chromatographic analysis after 0, 4, 12, 24, 48, and 96 h. Isooctane and toluene provided the most inert conditions, although, a few of the impurities were insufficiently stable in these two solvents. The present experiments were performed as a part of the development of a harmonized method for profiling of amphetamine. The results can be used to support the choice of organic solvents for sample preparation. They also provide information about the stability of the impurities that are found in profiles of illicit amphetamine. This is essential due to the fact, that unstable compounds can have a negative influence on the comparison of profiles. 相似文献
428.
Rupp K Davies PS Newcomb C Iams H Becker C Mulpuru S Ressler S Romig K Miller B 《Social security bulletin》2005,66(2):21-48
This article provides a nationally representative profile of noninstitutionalized children 0 to 17 years of age who were receiving support from the Supplemental Security Income (SSI) program because of a disability. To assess the role of the SSI program in providing assistance to low-income children with disabilities and their families, it is important to obtain detailed information on demographic characteristics, income and assets, health and disabilities, and health care utilization. Yet administrative records of the Social Security Administration do not contain many of the relevant data items, and the records provide only an incomplete picture of the family relationships affecting the lives of children with disabilities. The National Survey of SSI Children and Families fills this gap. This summary article is based on survey interviews conducted between July 2001 and June 2002 and provides some highlights characterizing children with disabilities who were receiving SSI and their families. Most children receiving SSI (hereafter referred to as "SSI children") lived in a family headed by a single mother, and less than one in three lived with both parents. A very high proportion, about half, were living in a household with at least one other individual reported to have had a disability. About 70 percent of children received some kind of special education. SSI support was the most important source of family income, with earnings a close second. On average, SSI payments accounted for nearly half of the income for the children's families, and earnings accounted for almost 40 percent. When all sources of family income were considered, slightly more than half (54 percent) of SSI children lived in families above the poverty threshold, a notable fact given that the federal SSI program guarantees only a subpoverty level of income. However, beyond these averages there was substantial variation, with some children living in families with income well below the poverty threshold and others having income well over 200 percent of the poverty threshold. About one-third of SSI children lived in families owning a home, two-thirds lived with parents or guardians with at least one car, and about 40 percent lived with parents or guardians with zero liquid assets. Less than 4 percent lived with adults who owned stocks, mutual funds, notes, certificates of deposit, or savings bonds. The Social Security Administration's administrative records contain only a limited amount of information about disability diagnoses. The National Survey of SSI Children and Families supplements those records with data from an array of questions on functional limitations, self-reported health, and the perceived severity of disabilities. The data suggest that a great degree of variation in severity exists within the childhood caseload, as reflected in reports of the presence or absence of six functional limitations, perceived overall health status, and perceived impact of disability on the child's ability to do things. Overall, 36 percent of the children were reported to have had disabilities that affected their abilities to do things "a great deal," and for 21 percent their difficulties had very little or no impact. Physical disabilities were most common among children aged 0 to 5, and mental disabilities dominated the picture for the other two age groups: 6 to 12 and 13 to 17. Virtually all SSI children are covered by some form of health insurance, with Medicaid being by far the most common source of health insurance coverage. Just as in the case of the severity of disabilities, substantial variation was reported in health care utilization among SSI children. Almost 30 percent of children had two or fewer doctor visits during the 12 months preceding the interview, and close to 50 percent had five or more doctor visits. About four-fifths of the children had no reported hospitalizations or surgeries during the previous year. More than 40 percent of the children visited an emergency room during the previous year, most of them more than once. Importantly, no out-of-pocket costs associated with medical care were reported for more than two-thirds of the children, and only about 3 percent had annual expenses exceeding $1,000 for physical and mental health care. This finding suggests that SSI payments are not used to cover medical expenses for the overwhelming majority of children. The use of supportive therapies varied widely among SSI children: more than half reported having used physical, occupational, or speech therapy; only 8 percent used respite care for the parents or other family members. An analysis of the perception of the survey respondents shows that more than one-third of children had unmet needs for mental health counseling services, and about three-quarters of families had unmet needs for respite care. In several service categories, the proportion perceived to have had unmet service needs was around 10 percent or less. In the dominant service category of physical, occupational, and speech therapy, only 11 percent perceived to have had unmet service needs. 相似文献
429.
430.