全文获取类型
收费全文 | 848篇 |
免费 | 45篇 |
专业分类
各国政治 | 79篇 |
工人农民 | 67篇 |
世界政治 | 78篇 |
外交国际关系 | 56篇 |
法律 | 407篇 |
中国共产党 | 2篇 |
中国政治 | 12篇 |
政治理论 | 186篇 |
综合类 | 6篇 |
出版年
2023年 | 14篇 |
2022年 | 11篇 |
2021年 | 10篇 |
2020年 | 30篇 |
2019年 | 39篇 |
2018年 | 57篇 |
2017年 | 50篇 |
2016年 | 47篇 |
2015年 | 33篇 |
2014年 | 29篇 |
2013年 | 132篇 |
2012年 | 41篇 |
2011年 | 37篇 |
2010年 | 39篇 |
2009年 | 34篇 |
2008年 | 22篇 |
2007年 | 32篇 |
2006年 | 34篇 |
2005年 | 38篇 |
2004年 | 20篇 |
2003年 | 26篇 |
2002年 | 21篇 |
2001年 | 14篇 |
2000年 | 8篇 |
1999年 | 3篇 |
1998年 | 4篇 |
1997年 | 2篇 |
1996年 | 3篇 |
1995年 | 4篇 |
1994年 | 6篇 |
1993年 | 8篇 |
1992年 | 4篇 |
1991年 | 2篇 |
1990年 | 8篇 |
1989年 | 3篇 |
1988年 | 2篇 |
1987年 | 5篇 |
1985年 | 3篇 |
1984年 | 4篇 |
1983年 | 5篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1980年 | 1篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有893条查询结果,搜索用时 9 毫秒
631.
632.
Euikon Kim 《East Asia》1992,11(2):35-48
Northeast Asia is a cluster of countries with wide differences in political systems, stages of economic development, levels
of technology, and natural resource endowments. In addition, infrastructures of national economies are mutually complementary.
Yet many sociopolitical elements have so far barred active economic cooperation from becoming a reality, such as North Korean
nuclear issues, different ideologies, unstable political systems, and anti-Japanese sentiments.
The Tumen river Delta area development projects can be a litmus test for future economic cooperation in the region. Market
forces in Japan and South Korea increasingly tend to jump national boundaries and to escape political control, whereas sociopolitical
factors have a tendency to restrict and channel the economic activities. Thus, problems of the Tumen river basin development
lie in how and where those positive and negative factors are reconciled. 相似文献
633.
634.
635.
636.
Neglect, defined as the failure of a caregiver to adequately provide safety, food, clothing, shelter, education, protection, medical/dental care, and supervision for a child in his/her care, is a relatively uncommon but important cause of child mortality. A retrospective review of pediatric deaths (age 18 years or less) referred to the Medical University of South Carolina Forensic Pathology Office for autopsy over the past 25 years revealed 16 deaths due to some type of pediatric neglect. Cases were analyzed as to age, sex, race, cause and manner of death, autopsy findings, ancillary studies, past medical history, social/family history, and caregiver. Six cases of malnutrition/starvation and/or dehydration were identified, composing the most common cause of death in the neglect cases identified and the majority of the homicides due to neglect. Other deaths in which neglect contributed significantly included toxic ingestions (2 cases), hyper-/hypothermia (2 cases), unusual drowning/aspiration (4 cases), electrocution (1 case), and delayed/absent medical therapy (2 cases, including one of the previously mentioned ingestions). Of these additional cases, 7 were certified as accidental manner, 2 as natural, and 1 as a homicide. Cases which fell into a "gray zone" in which the appropriateness of invoking neglect was a matter of opinion or societal convention were excluded from the review; examples included conventional accidental drowning, choking on food or aspiration of foreign body, overlying/wedging during sleep, accidental hanging, and motor-vehicle traffic accidents (pedestrians, unrestrained passengers). The findings of this review reinforce the fact that malnutrition/starvation and dehydration compose the most common form of lethal pediatric neglect while highlighting less common forms of neglect and the difficulty of determining manner of death in cases in which neglect plays a more questionable role than in seemingly clear-cut malnutrition/starvation and dehydration cases. We demonstrate the typical victim and scenario that investigators will encounter in cases of fatal pediatric neglect, often a child under the age of 1 year who has been deprived of food and/or drink for some time, or an older, more independently mobile child who has not been adequately supervised. These children may or may not have a demonstrable prior history of maltreatment or (nonfatal) neglect, and review of medical records is an important part of the investigation. We additionally discuss key gross autopsy findings, appropriate specimen collection, helpful ancillary studies, microscopic findings of significance, potential mimickers of neglect, and other special considerations in cases of pediatric neglect. 相似文献
637.
Ancillary studies in amniotic fluid embolism: a case report and review of the literature 总被引:2,自引:0,他引:2
Marcus BJ Collins KA Harley RA 《The American journal of forensic medicine and pathology》2005,26(1):92-95
The incidence of amniotic fluid embolism during pregnancy is approximately 1/50,000 and has a mortality rate in excess of 80%. The postmortem diagnosis of amniotic fluid embolism can be challenging for forensic investigators and pathologists. At autopsy, usually signs of disseminated intravascular coagulation suggest an amniotic fluid embolism. A definitive diagnosis of amniotic fluid embolism cannot be made until ancillary studies are performed on the decedent's tissues. We report a case of a 37-year-old G3P2 white female who was 36 weeks gestation when her membranes spontaneously ruptured. She suddenly became breathless, went into cardiogenic shock, and died. The autopsy revealed gross and microscopic findings of amniotic fluid embolism, which was confirmed with ancillary studies consisting of special stains, immunohistochemistry, and a serum tryptase level. The authors hope this case report, including gross and microscopic autopsy findings with procedural and ancillary studies, and review of the literature will help investigators and pathologists in the diagnosis of amniotic fluid embolism. 相似文献
638.
Kim KD Ruprecht A Wang G Lee JB Dawson DV Vannier MW 《Forensic science international》2005,155(1):28-34
The purpose of this study was to determine the precision and accuracy of facial soft tissue measurement using personal computer (PC)-based multiplanar reconstructed (MPR) computed tomography (CT) images and to evaluate the effect of the various CT scanning protocols on the facial soft tissue thickness measurement. Thirteen different CT imaging protocols were used to image a cadaver head. MPR reformations and three-dimensional (3D) reconstructions viewed on a laptop PC were used to make measurements at six specific sites on each set of images. These measurements were compared to physical measurements at the same sites. Increasing the slice thickness resulted in decreased image quality. Within the same slice thickness, increasing the pitch ratio in the spiral mode, resulted in decreasing image quality. The image quality of conventional CT scanning was relatively poorer than that of the spiral CT scanning. However, the mean deviation from the physical measurement was within 0.43 mm in every instance. This mean deviation was quite small and clinically acceptable for measuring the soft tissue thickness of the facial area. PC-based MPR CT images of the face using routine scanning CT protocols can be used to accurately measure soft tissue thickness in the facial region. However, for more fine and accurate data collection, scanning protocols with slice thicknesses less than 5mm, and a spiral/helical mode pitch less than 2:1 are recommended. 相似文献
639.
Allele frequencies for the nine tetrameric short tandem repeats (STR) loci D3S1358, vWA, FGA, D8S1179, D21S11, D18S51, D5S818, D13S317, D7S820 (AmpFlSTR) Profiler Plus PCR Amplification kit, PE Applied Biosystems) were determined in 109 unrelated Korean ethnic group individuals from northeast China. 相似文献
640.
When Loving Means Hurting: An Exploration of Attachment and Intimate Abuse In a Community Sample 总被引:1,自引:0,他引:1
Antonia?J.?Z.?HendersonEmail author Kim?BartholomewEmail author Shanna?J.?Trinke Marilyn?J.?Kwong 《Journal of family violence》2005,20(4):219-230
Intimate relationship abuse can be understood by considering two critical tenets of attachment. First, attachment fulfills
a basic need for survival. Thus, the tenacity of the attachment bond is independent of relationship quality. Second, individuals
whose attachment needs have been frustrated may strike out violently to regain proximity to the perceived loss of an intimate
partner. We examined how individual differences in attachment were associated with women's and men's relationship abuse. A
telephone survey assessed levels of psychological and physical abuse in 1249 Vancouver residents. Of these, 128 completed
an attachment interview exploring their interpersonal relationships. Hierarchical regressions revealed that attachment variables
contributed significant variance to prediction of both receipt and perpetration of psychological and physical abuse, with
preoccupied attachment acting as an independent predictor. There was no evidence that gender moderated these associations.
The findings suggest that attachment preoccupation in either partner may increase likelihood of abuse in couples. 相似文献