首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   300篇
  免费   7篇
各国政治   6篇
工人农民   27篇
世界政治   32篇
外交国际关系   16篇
法律   162篇
政治理论   55篇
综合类   9篇
  2022年   2篇
  2021年   2篇
  2020年   10篇
  2019年   10篇
  2018年   14篇
  2017年   11篇
  2016年   12篇
  2015年   5篇
  2014年   10篇
  2013年   49篇
  2012年   16篇
  2011年   8篇
  2010年   2篇
  2009年   8篇
  2008年   10篇
  2007年   13篇
  2006年   9篇
  2005年   11篇
  2004年   6篇
  2003年   8篇
  2002年   15篇
  2001年   6篇
  2000年   5篇
  1999年   6篇
  1998年   7篇
  1997年   4篇
  1996年   1篇
  1995年   7篇
  1994年   1篇
  1993年   1篇
  1992年   5篇
  1991年   1篇
  1990年   5篇
  1989年   3篇
  1988年   2篇
  1987年   5篇
  1986年   3篇
  1985年   2篇
  1984年   1篇
  1983年   2篇
  1982年   1篇
  1981年   1篇
  1979年   1篇
  1978年   1篇
  1977年   1篇
  1975年   1篇
  1973年   2篇
  1966年   1篇
排序方式: 共有307条查询结果,搜索用时 15 毫秒
121.
122.
123.
Third World debt continues to be a critical and intractable issue. A particularly interesting aspect of the story is the effort by external donors and lenders to promote specific policy changes in exchange for assistance in dealing with indebtedness and promoting economic development. This study looks at the interactions between donors and decision-makers in sub-Saharan African countries, an area where donors rather than private banks play a dominant role. Donors have been learning from the uneven response to the reforms and are attempting to tailor the reforms somewhat to different contexts and to encourage more consultations. To succeed in these efforts they need to reexamine their view of analysis as a purely technocratic exercise among experts. They can learn from recent changes in the policy sciences, here called an interactive approach to policy analysis. It makes three assumptions: policy relevant knowledge includes time and space information and is diffused; participants can reason together and learn from each other; and there is a need for procedures and institutions to facilitate interaction and learning. The study explores the assumptions implicit in donor actions and proposes that an interactive approach, with its more open-ended perspective on knowledge, can stimulate greater dialogue and expand the kinds of information that are fed into the process. Louise G. White is associate professor in the department of public affairs at George Mason University, Fairfax VA 22030–4444. Her research is in the general areas of development management and policy analysis. Her most recent books areCreating Opportunities for Change: Approaches for Managing Development Programs, andPolitical Analysis: Technique and Practice. She has recently published articles inPublic Administration Review andWorld Development.  相似文献   
124.
Y chromosome-specific short tandem repeat (Y-STR) analysis has become another widely accepted tool for human identification. The PowerPlex Y System is a fluorescent multiplex that includes the 12 loci: DYS19, DYS385a/b, DYS389I/II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438 and DYS439. This panel of markers incorporates the 9-locus European minimal haplotype (EMH) loci recommended by the International Y-STR User Group and the 11-locus set recommended by the Scientific Working Group on DNA Analysis Methods (SWGDAM). Described here are inter-laboratory results from 17 developmental validation studies of the PowerPlex Y System and include the following results: (a) samples distributed between laboratories and commercial standards produced expected and reproducible haplotypes; (b) use of common amplification and detection instruments were successfully demonstrated; (c) full profiles were obtained with standard 30 and 32 cycle amplification protocols and cycle number (24-28 cycles) could be modified to match different substrates (such as direct amplification of FTA paper); (d) complete profiles were observed with reaction volumes from 6.25 to 50 microL; (e) minimal impact was observed with variation of enzyme concentration; (f) full haplotypes were observed with 0.5-2x primer concentrations; however, relative yield between loci varied with concentration; (g) reduction of magnesium to 1mM (1.5 mM standard) resulted in minimal amplification, while only partial loss of yield was observed with 1.25 mM magnesium; (h) decreasing the annealing temperature by 2-4 degrees C did not generate artifacts or locus dropout and most laboratories observed full amplification with the annealing temperature increased by 2 degrees C and significant locus dropout with a 4 degrees C increase in annealing temperature; (i) amplification of individual loci with primers used in the multiplex produced the same alleles as observed with the multiplex amplification; (j) all laboratories observed full amplification with >or = 125 pg of male template with partial and/or complete profiles observed using 30-62.5 pg of DNA; (k) analysis of < or = 500 ng of female DNA did not yield amplification products; (l) the minor male component of a male/female mixture was observed with < or =1200-fold excess female DNA with the majority of alleles still observed with 10,000-fold excess female; (m) male/male mixtures produced full profiles from the minor contributor with 10-20-fold excess of the major contributor; (n) average stutter for each locus; (o) precision of sizing were determined; (p) human-specificity studies displayed amplification products only with some primate samples; and (q) reanalysis of 102 non-probative casework samples from 65 cases produced results consistent with original findings and in some instances additional identification of a minor male contributor to a male/female mixture was obtained. In general, the PowerPlex Y System was shown to have the sensitivity, specificity and reliability required for forensic DNA analysis.  相似文献   
125.
Y chromosome-specific short tandem repeat (Y-STR) analysis has become another widely accepted tool for human identification. The PowerPlex Y System is a fluorescent multiplex that includes the 12 loci: DYS19, DYS385a/b, DYS389I/II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438 and DYS439. This panel of markers incorporates the 9-locus European minimal haplotype (EMH) loci recommended by the International Y-STR User Group and the 11-locus set recommended by the Scientific Working Group on DNA Analysis Methods (SWGDAM). Described here are inter-laboratory results from 17 developmental validation studies of the PowerPlex Y System and include the following results: (a) samples distributed between laboratories and commercial standards produced expected and reproducible haplotypes; (b) use of common amplification and detection instruments were successfully demonstrated; (c) full profiles were obtained with standard 30 and 32 cycle amplification protocols and cycle number (24-28 cycles) could be modified to match different substrates (such as direct amplification of FTA paper); (d) complete profiles were observed with reaction volumes from 6.25 to 50 microL; (e) minimal impact was observed with variation of enzyme concentration; (f) full haplotypes were observed with 0.5-2x primer concentrations; however, relative yield between loci varied with concentration; (g) reduction of magnesium to 1mM (1.5 mM standard) resulted in minimal amplification, while only partial loss of yield was observed with 1.25 mM magnesium; (h) decreasing the annealing temperature by 2-4 degrees C did not generate artifacts or locus dropout and most laboratories observed full amplification with the annealing temperature increased by 2 degrees C and significant locus dropout with a 4 degrees C increase in annealing temperature; (i) amplification of individual loci with primers used in the multiplex produced the same alleles as observed with the multiplex amplification; (j) all laboratories observed full amplification with >or = 125 pg of male template with partial and/or complete profiles observed using 30-62.5 pg of DNA; (k) analysis of < or = 500 ng of female DNA did not yield amplification products; (l) the minor male component of a male/female mixture was observed with < or =1200-fold excess female DNA with the majority of alleles still observed with 10,000-fold excess female; (m) male/male mixtures produced full profiles from the minor contributor with 10-20-fold excess of the major contributor; (n) average stutter for each locus; (o) precision of sizing were determined; (p) human-specificity studies displayed amplification products only with some primate samples; and (q) reanalysis of 102 non-probative casework samples from 65 cases produced results consistent with original findings and in some instances additional identification of a minor male contributor to a male/female mixture was obtained. In general, the PowerPlex Y System was shown to have the sensitivity, specificity and reliability required for forensic DNA analysis.  相似文献   
126.
In criminal practice before international tribunals, the boundariesbetween lack of professionalism (serious misconduct) by prosecutionand taking an erroneous position on the law (procedural error)are particularly blurred, if only because the backgrounds andexpectations of all persons involved in the proceedings areprofoundly different and the playing field is still insufficientlydefined. This is illustrated by the Furundija case brought beforean International Criminal Tribunal for the former Yugoslavia(ICTY) Trial Chamber in 1998. In that case the Chamber heldthat the prosecution, by failing to disclose a document to thedefence, had both engaged in serious misconduct and made a seriousprocedural error. Instead, the Lord Advocate and the Crown Agentof Scotland, later consulted by the ICTY Prosecutor, concludedthat there had only been an error of judgment. National caselaw, for instance that of Canadian courts, makes it clear thata good faith decision not to disclose a document, made in theexercise of professional judgment on a difficult and novel issue,may constitute an error of judgment, but certainly does notamount to misconduct.  相似文献   
127.
128.
A divisive law from the outset, the diminished responsibility defence has continued to arouse criticism since its inception over fifity years ago under section 2 of the Homicide Act 1957. Increasing pressure from academics, practitioners, and mental health professionals, among others, to restructure the law has resulted in a reformulation of the wording of section 2 under the unassuming auspices of section 52 of the Coroners and Justice Act 2009. This paper examines the new definition of diminished responsibility on two levels: the broader context and structural significance of the Act and section 52's place within it; and, the technical detail of the section itself. In so doing, consideration is given as to whether the new law appeases the critics of the old, in addition to whether the Government has succeeded in bringing to bear its objectives of clarity, fairness and effectiveness.  相似文献   
129.
130.
ABSTRACT

We tested the utility of applying the Verifiability Approach (VA) to witness statements after a period of delay. The delay factor is important to consider because interviewees are often not interviewed directly after witnessing an event. A total of 64 liars partook in a mock crime and then lied about it during an interview, seven days later. Truth tellers (n?=?78) partook in activities of their own choosing and told the truth about it during their interview, seven days later. All participants were split into three groups, which provided three different verbal instructions relating to the interviewer’s aim to assess the statements for the inclusion of verifiable information: no information protocol (IP) (n?=?43), the standard-IP (n?=?46) and an enhanced-IP (n?=?53). In addition to the standard VA approach of analysing verifiable details, we further examined verifiable witness information and verifiable digital information and made a distinction between verifiable details and verifiable sources. We found that truth tellers reported more verifiable digital details and sources than liars.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号