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201.
Ethanol formation in unadulterated postmortem tissues 总被引:2,自引:0,他引:2
During the investigation of aviation accidents, postmortem samples obtained from fatal accident victims are submitted to the FAA's Civil Aerospace Medical Institute (CAMI) for toxicological analysis. During toxicological evaluations, ethanol analysis is performed on all cases. Many species of bacteria, yeast, and fungi have the ability to produce ethanol and other volatile organic compounds in postmortem specimens. The potential for postmortem ethanol formation complicates the interpretation of ethanol-positive results from accident victims. Therefore, the prevention of ethanol formation at all steps following specimen collection is a priority. Sodium fluoride is the most commonly used preservative for postmortem specimens. Several studies have been published detailing the effectiveness of sodium fluoride for the prevention of ethanol formation in blood and urine specimens; however, our laboratory receives blood or urine in approximately 70% of cases. Thus, we frequently rely on tissue specimens for ethanol analysis. The postmortem tissue specimens received by our laboratory have generally been subjected to severe trauma and may have been exposed to numerous microbial species capable of ethanol production. With this in mind, we designed an experiment utilizing unadulterated tissue specimens obtained from aviation accident victims to determine the effectiveness of sodium fluoride at various storage temperatures for the prevention of microbial ethanol formation. We found that without preservative, specimens stored at 4 degrees C for 96 h showed an increase in ethanol concentration ranging from 22 to 75 mg/hg (average 42 +/- 15 mg/hg). At 25 degrees C, these same specimens showed an increase ranging from 19 to 84 mg/hg (average 45 +/- 22 mg/hg). With the addition of 1.00% sodium fluoride, there was no significant increase in ethanol concentration at either temperature. 相似文献
202.
Tishler CL Bartholomae S Katz BL Landry-Meyer L 《Journal of interpersonal violence》2004,19(9):1042-1062
Mediation is an essential component of custody evaluation and reconciliation services in domestic courts. Data from 306 couples with and without a reported history of domestic violence (DV) who were ordered to attend an assessment for mediation were analyzed to determine differences in the mediation process. More than one third reported a history of DV. Chi-square analysis showed that differences in the mediation process exist between couples reporting DV and couples reporting no DV. A greater proportion of couples with reported DV (a) actually attended the court-mandated assessment session, (b) were deemed unsuitable to participate in the mediation process, (c) were in default of child-support payments, and (d) reported drug and alcohol abuse. No significant differences were found between the two groups in the measured mediation outcomes. Implications for the use of mediation with couples who reported DV and recommendations for future research are discussed. 相似文献
203.
This study addresses the question of performance indicators for police oversight agencies through a survey of the directors of agencies in Australia and an analysis of annual reports. The findings show that a variety of targets and measures are in place. The majority of oversight bodies adopt fairly basic and largely quantitative measures on matters processed, supplemented by case study accounts of positive impacts. 相似文献
204.
Today the method commonly used for detecting gunshot residue is through the combined use of scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). In recent years, this same methodology began to find use in detecting and characterizing pyrotechnic reaction residue (PRR) particles whether produced by explosion or burning. This is accomplished by collecting particulate samples from a surface in the immediate area of the pyrotechnic reaction. Suspect PRR particles are identified by their morphology (typically 1 to 20 microm spheroidal particles) using an SEM; then they are analyzed for the elements they contain using X-ray EDS. This can help to identify the general type of pyrotechnic composition involved. 相似文献
205.
206.
Routes of funding,roots of trust? Northern NGOs,Southern NGOs,donors, and the rise of direct funding
This paper, based on a review of SIDA's funding of NGOs in Bangladesh, explores the changing relationships between bilateral donors, Northern NGOs (NNGOs), and Southern NGOs (SNGOs). It compares direct and indirect funding routes between donors and SNGOs. Most SIDA funding of SNGOs was previously undertaken through Swedish NGOs. As SNGO competence and capacity has increased through their own efforts at professionalisation, through wider recognition and support from government and by the provision of 'capacity building' partnerships with NNGOs, these Southern organisations have taken up positions within the burgeoning 'third sectors' of aid-recipient countries alongside the governmental and business sectors. SIDA has increasingly funded SNGOs directly through its Dhaka office. The paper sets out to address two main themes in the context of Swedish aid to NGOs in Bangladesh. Firstly, as bilateral donors provide an increasing proportion of their resources to NGOs, how can sound and responsible funding relationships based on mutual trust be built between bilateral donors and NGOs? Secondly, how can NNGOs work usefully in contexts where the number and capacity of local SNGOs has expanded significantly? 相似文献
207.
Advice About Life Plans and Personal Problems in Late Adolescent Sibling Relationships 总被引:1,自引:0,他引:1
Tucker Corinna Jenkins Barber Bonnie L. Eccles Jacquelynne S. 《Journal of youth and adolescence》1997,26(1):63-76
This study examined older adolescents' perceptions of the following sibling relationship characteristics: advice about life plans and personal problems, satisfaction with support, and sibling influence on interests and goals. Little is known about late adolescent sibling relationships and siblings' role in the identity formation process. Differences between first- and secondborns, males and females, and opposite- and same-gender sibling pairs were explored. Participants were 223 adolescents (M = 17.5 years old) who filled out a survey in their senior year of high school. All adolescents were from always-married families and had one sibling between the ages of 13 and 23. Analyses revealed that both secondborns and females reported receiving more advice, being more satisfied with sibling support, and being influenced more by their sibling than firstborns and males, respectively. In addition, those in female–female sibling pairs received more advice from their siblings than those in male–male and mixed gender pairs. Findings revealed that adolescents do sometimes rely on their siblings as a source of advice about life plans and personal problems. 相似文献
208.
This article examines the issues involved in federal investment budgeting and planning for the acquisition of federally-owned assets. It describes the unique role of the federal government and examines the different issues and reforms prompted by differing types of capital and investment sponsored at the federal level. It suggests that meaningful changes can be instituted in our budgeting practices that can make a difference for our budgetary choices without adopting a full-scale capital budget. It also presents a framework for improving federal agency capital decision making based on a study of practices used by leading state and local and private sector organizations. The article is based on testimony delivered before the President's Commission to Study Capital Budgeting. 相似文献
209.
210.