全文获取类型
收费全文 | 13030篇 |
免费 | 707篇 |
专业分类
各国政治 | 764篇 |
工人农民 | 397篇 |
世界政治 | 1071篇 |
外交国际关系 | 673篇 |
法律 | 7409篇 |
中国政治 | 83篇 |
政治理论 | 3230篇 |
综合类 | 110篇 |
出版年
2023年 | 71篇 |
2021年 | 86篇 |
2020年 | 248篇 |
2019年 | 310篇 |
2018年 | 336篇 |
2017年 | 394篇 |
2016年 | 406篇 |
2015年 | 306篇 |
2014年 | 342篇 |
2013年 | 1745篇 |
2012年 | 317篇 |
2011年 | 333篇 |
2010年 | 367篇 |
2009年 | 395篇 |
2008年 | 317篇 |
2007年 | 368篇 |
2006年 | 353篇 |
2005年 | 384篇 |
2004年 | 402篇 |
2003年 | 365篇 |
2002年 | 358篇 |
2001年 | 428篇 |
2000年 | 368篇 |
1999年 | 323篇 |
1998年 | 188篇 |
1997年 | 152篇 |
1996年 | 156篇 |
1995年 | 167篇 |
1994年 | 177篇 |
1993年 | 164篇 |
1992年 | 232篇 |
1991年 | 240篇 |
1990年 | 205篇 |
1989年 | 221篇 |
1988年 | 187篇 |
1987年 | 200篇 |
1986年 | 191篇 |
1985年 | 195篇 |
1984年 | 156篇 |
1983年 | 174篇 |
1982年 | 126篇 |
1981年 | 132篇 |
1980年 | 92篇 |
1979年 | 146篇 |
1978年 | 102篇 |
1977年 | 89篇 |
1976年 | 80篇 |
1975年 | 58篇 |
1974年 | 68篇 |
1973年 | 70篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
901.
Because of difficulties collecting sales taxes on Internet sales, several states have engaged in an effort (the Streamlined Sales Tax Project, SSTP) to simplify their sales tax systems. One hope among SSTP proponents is that a simplified system will result in Internet vendors voluntarily collecting the sales tax. We address two issues:
- ? Will states adopt the extensive reforms proposed by the SSTP?
- ? Will vendors voluntarily collect the sales tax?
902.
Robert?D.?DavisEmail author Cary?D.?Rostow James?B.?Pinkston Dennis?R.?Combs Dennis?R.?Dixon 《Journal of Police and Criminal Psychology》2004,19(1):17-26
This study reports an analysis of Bartol's (1991) Immaturity Index and Hargrave and associates' (1988) Aggressiveness Index
as a measure of police conduct. The correlations between the supervisory ratings and the Immaturity and Aggressiveness indices
were examined for 1020 law enforcement officers. The results showed that Immaturity Index was related to termination for failure
to complete training and insubordination. The Aggressiveness Index was related to a termination for failure to complete training
and several other problematic police behaviors, but was not found to be specifically linked with acts of aggression. Implications
for using these two indices in law enforcement selection are discussed.
Authors' Note: Cary Rostow, Ph.D. is president of Matrix, Inc., Baton Rouge, Louisiana, and is in private practice in Baton Rouge. Robert
Davis, Ph.D., is executive vice-president and director of science, research, and development for Matrix, Inc., and has a private
practice in Baton Rouge. James B. Pinston, Ph.D., is a clinical neuropsychologist within the department of neurology at the
Louisiana State University Health Sciences Center and School of Medicine in Shreveport, Louisiana. Dennis R. Combs, Ph.D.,
is an assistant professor of psychology at the University of Tulsa. Dennis R. Dixon, M.A., is currently a doctoral student
at Louisiana State University. 相似文献
903.
Schneider PM Bender K Mayr WR Parson W Hoste B Decorte R Cordonnier J Vanek D Morling N Karjalainen M Marie-Paule Carlotti C Sabatier M Hohoff C Schmitter H Pflug W Wenzel R Patzelt D Lessig R Dobrowolski P O'Donnell G Garafano L Dobosz M De Knijff P Mevag B Pawlowski R Gusmão L Conceicao Vide M Alonso Alonso A García Fernández O Sanz Nicolás P Kihlgreen A Bär W Meier V Teyssier A Coquoz R Brandt C Germann U Gill P Hallett J Greenhalgh M 《Forensic science international》2004,139(2-3):123-134
Degradation of human DNA extracted from forensic stains is, in most cases, the result of a natural process due to the exposure of the stain samples to the environment. Experiences with degraded DNA from casework samples show that every sample may exhibit different properties in this respect, and that it is difficult to systematically assess the performance of routinely used typing systems for the analysis of degraded DNA samples. Using a batch of artificially degraded DNA with an average fragment size of approx. 200 bp a collaborative exercise was carried out among 38 forensic laboratories from 17 European countries. The results were assessed according to correct allele detection, peak height and balance as well as the occurrence of artefacts. A number of common problems were identified based on these results such as strong peak imbalance in heterozygous genotypes for the larger short tandem repeat (STR) fragments after increased PCR cycle numbers, artefact signals and allelic drop-out. Based on the observations, strategies are discussed to overcome these problems. The strategies include careful balancing of the amount of template DNA and the PCR cycle numbers, the reaction volume and the amount of Taq polymerase. Furthermore, a careful evaluation of the results of the fragment analysis and of automated allele calling is necessary to identify the correct alleles and avoid artefacts. 相似文献
904.
Mechanic MB 《Journal of interpersonal violence》2004,19(11):1283-1289
This article proposes that we move beyond posttraumatic stress disorder (PTSD) in our conceptualization of traumatic stress responses of victimized women exposed to serial forms of unrelenting violence, such as intimate partner violence and stalking. It is argued that the traditional PTSD framework is ill fitting in the context of some forms of violence against women (VAW), and these limits have consequences for developing appropriate interventions for some victimized women. The article further suggests going beyond PTSD by developing a more nuanced understanding of the ways in which PTSD and other mental health symptoms contribute to the vast array of deleterious personal, societal, and economic costs of VAW. 相似文献
905.
Risk factors associated with the likelihood of being sexually victimized by a stranger or friend/acquaintance since being on the street was examined among 372 homeless and runaway youth. Young people were interviewed on the streets and in shelters by outreach workers using a systematic sampling strategy. Youth who engaged in more high-risk behaviors were expected to be at greater risk for sexual victimization by both known and unknown assailants. Results indicated that for females, running from home for the first time at an earlier age was associated with sexual victimization by both a stranger and friend/acquaintance. However, engaging in deviant subsistence strategies, survival sex, and grooming predicted being sexually victimized by a friend/acquaintance. For males, survival sex and grooming predicted stranger sexual victimization, whereas sexual orientation was associated with sexual victimization by a friend/acquaintance. Overall, 35% of the sample had been sexually victimized. 相似文献
906.
Spamming is a major threat to the formation of public trust in the Internet and discourages broader civil participation in the emerging information society. To the individual, spams are usually little more than a nuisance, but collectively they expose Internet users to a panoply of new risks while threatening the communications and commercial infrastructure. Spamming also raises important questions of criminological interest. On the one hand it is an example of a pure cybercrime – a harmful behaviour mediated by the Internet that is the subject of criminal law, while on the other hand, it is a behaviour that has in practice been most effectively contained technologically by the manipulation of ‘code’ – but at what cost? Because there is not an agreed meaning as to what constitutes ‘online order’ that renders it simply and uncritically reducible to a set of formulae and algorithms that can be subsequently imposed (surreptitiously) by technological processes. The imposition of order online, as it is offline, needs to be subject to critical discussion and also checks and balances that have their origins in the authority of law. This article deconstructs and analyses spamming behaviour, before exploring the boundaries between law and code (technology) as governance in order to inform and stimulate the debate over the embedding of cybercrime prevention policy within the code itself. 相似文献
907.
Magid DJ Houry D Koepsell TD Ziller A Soules MR Jenny C 《Journal of interpersonal violence》2004,19(1):3-12
Women who seek medical care following sexual assault are usually evaluated and treated in an emergency department (ED). Therefore, EDs can be an important source of sexual assault surveillance data. The authors compared the incidence of sexual assault presenting for emergency care in a single county during July to November of 1974 and 1991. Participants included all female sexual assault victims aged 14 and older who presented for ED evaluation. Treating physicians prospectively collected data using standardized forms. The z statistic was used to compare sexual assault incidence. There was a 60% increase in the incidence of sexual assault victims presenting for emergency care in 1991 compared to 1974, primarily due to an increase in the incidence of women presenting to the ED after rapes by known assailants. In contrast, the annual incidence of reported stranger assaults was similar in the two study years. 相似文献
908.
The Indiana University Advanced Research and Technology Institute (ARTI) is the technology transfer organ of the Indiana University system. ARTIs structure is complex, and has been dynamic since its creation in 1996. This complexity stems in part from the diversity represented by the Indiana University system and from competing interests within the university itself. In addition to the intrinsic value of higher education, the university has the potential to add substantial value to Indianas economic landscape through technology transfer, economic development initiatives and the resulting job creation, but realizing that potential will require effectively leveraging a disconnected network including the IU campuses and critical capabilities contributed by the states other world class institutions. This paper reviews the formation of ARTI, a discussion of its structure and evolving mission, recent initiatives and some possible metrics for technology transfer initiatives. 相似文献
909.
This brief report explores dating violence by comparing three groups of male college students (nonabusive, psychologically abusive only, and physically abusive). These men were compared on measures of impulsivity, problems with alcohol, life satisfaction, anger management skills, history of witnessing abuse, history of experiencing abuse, and relationship satisfaction. Data for this analysis were obtained from a sample of 115 male college students. Differences between the three groups of men were found in the levels of problems with alcohol, relationship satisfaction, and anger management skills. Anger management skills best differentiated the three groups of men leading to the conclusion that dating violence prevention and intervention strategies with male college students should address anger management skills. 相似文献
910.
Vukadinovich DM 《Journal of health law》2004,37(4):667-691
State laws recognize that a competent adult patient has the right to consent to or refuse medical treatment. While the law is clear with regard to the right of competent adults, state statutes are more complicated when the patient is a minor. While the law should, and does, attempt to balance the rights and obligations of parents and guardians against the access and privacy rights of minors, complicated state statutory schemes often fail to simultaneously address those contrasting goals in a consistent and uniform manner. The result is a confusing set of seemingly arbitrary and sometimes conflicting provisions that require the detailed attention of healthcare providers to ensure legal compliance. With the aim of helping healthcare practitioners meet their legal obligations, this Article examines state laws governing minor's consent rights byfocusing on the instances in which a minor's parent, guardian, or other authorized adult is permitted to consent to treatment on behalf of a minor and the instances in which a minor is authorized to act independent of adult intervention. 相似文献