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   36篇
  免费   0篇
各国政治   3篇
工人农民   3篇
世界政治   3篇
法律   16篇
政治理论   10篇
综合类   1篇
  2018年   2篇
  2015年   1篇
  2013年   5篇
  2011年   2篇
  2010年   1篇
  2008年   3篇
  2006年   1篇
  2005年   1篇
  2004年   1篇
  2003年   2篇
  2002年   3篇
  2001年   2篇
  2000年   1篇
  1999年   3篇
  1994年   1篇
  1993年   1篇
  1991年   1篇
  1980年   2篇
  1977年   1篇
  1975年   1篇
  1970年   1篇
排序方式: 共有36条查询结果,搜索用时 31 毫秒
1.
Growth in economic disparities, economic segregation, and racial/ethnic diversity have occurred in tandem in the U.S., leading to essential questions concerning whether the benefits of economic resources are shared across diverse groups. Analyzing a sample of eighth grade early adolescents (age 14 years) drawn from the nationally representative Early Childhood Longitudinal Study, Kindergarten Class of 1998–1999 (N?=?7625; 59% White, 12% Black, 19% Hispanic, 7% Asian, 2% Native American, and 2% multiracial; 47% female), lagged regression models assessed links between family, neighborhood, and school income and adolescent emotional and behavioral functioning. The results found that family income was associated with heightened emotional and behavioral functioning, and school income with improved behavioral functioning for White adolescents, whereas no benefits emerged for Black or Hispanic youth. In contrast, mixed associations emerged between income and early adolescent functioning for Asian and American Indian youth, with predominantly negative links appearing for multiracial youth. These patterns highlight diversity in the potential benefits and costs of economic resources, and suggest the need to better specify mechanisms through which economic disparities affect youth from varied backgrounds.  相似文献   
2.
3.
Fetal death has been defined by the World Health Organization as death before complete expulsion or extraction from its mother of a product of conception, irrespective of the duration of pregnancy. Certain causes of fetal death, including syphilis, Rh isoimmunization, toxemia, and diabetes, have shown significant declines over the past several decades. However, many fetal losses continue to occur from intrauterine infections, lethal malformations, fetal growth retardation, and abruptio placentae. Fetal death with no identifiable specific cause is another consideration when dealing with these cases. Other risk factors can include maternal, sociodemographic, and medical care factors. The authors reviewed all forensic cases referred for autopsy to the Forensic Section of the Medical University of South Carolina, Medical Examiners' Office over the 10-year period 1990-1999. All cases listed as fetal death or stillbirth were included. The 42 cases were analyzed as to fetus' gestational age, sex, race, weight, location of delivery, history of prenatal care, maternal drug use, chromosomal abnormalities, cause and manner of death, and autopsy findings. The black:white ratio was approximately 2:1, and the male:female ratio was virtually 1:1. Most fetuses were older than 20 weeks' gestational age, with one third between 20 and 29 weeks. The majority were externally normal aside from maceration. Only 7.5% had congenital anomalies. Twenty-one of 38 placentas were grossly and microscopically normal. Of cases with toxicologic analysis, 21% were positive for drugs, and 17% were positive for cocaine/benzoylecgonine. The manner of death was classified as natural (28), accident (2), and undetermined (12). Few studies have reported the specific causes of fetal death, and the lack of uniformity in data collection and classification of causes of fetal death has made comparisons difficult. The authors present this retrospective study to better determine the factors leading to fetal demise in the hope of assisting death investigators in this challenging arena.  相似文献   
4.
i. Middle East and Islam: A Bibliographical Introduction (Bibliotheca Asiatica 15). Edited by Diana Grimwood‐Jones, for the Middle East Libraries Committee [MELCOM]. Revised and enlarged edition. Zug, Inter Documentation Company, 1979. pp. ix, 429.

ii. Middle East Studies and Libraries. A Felicitation Volume for Professor J.D. Pearson. Edited by B.C. Bloomfield. London, Mansell, 1980. pp. xi, 231.

iii. Cultures of the Islamic Near East: A Guide to Introductory Readings for the Non‐Specialist. By John W. Bagnole. Washington, D.C., America‐Mideast Educational & Training Services, Inc. (Occasional Paper, No. 4), 1978. pp. ii, 79. $4.00

iv. The Modern Arab Woman: A Bibliography. By Michelle Raccagni. Metuchen, N.J. & London, The Scarecrow Press, 1978, pp. x, 282.  相似文献   

5.
Deaths attributed to ingestion of Nicotiana glauca are extremely rare. We report here a case where a 43-year-old man was found dead after apparently drinking a water extract of Nicotiana glauca. The primary alkaloid in the plant is anabasine. Toxicological analysis by capillary gas chromatography showed the deceased had a blood anabasine concentration of 2.2 mg/L. Clinically, the features of poisoning are nicotine-like and if death occurs it results from respiratory paralysis. The case further supports the view that, in the human, anabasine is considerably more toxic than nicotine.  相似文献   
6.
A simple and reliable previously reported extraction procedure has been extended to the analysis of a wide range of basic and neutral drugs in postmortem blood and other tissues. The method employs 200 microliters of blood treated with water and ammonia and extracted with diethyl ether. The concentrated extract is generally sufficiently clean for direct analysis by gas chromatography and high pressure liquid chromatography. Recovery, precision and linearity data are presented for selected drugs.  相似文献   
7.
The stability of two benzisoxazole antipsychotics was determined in vitro in decomposing porcine blood inoculated with bacteria, utilizing a high‐performance liquid chromatography with ultraviolet and fluorescence detection method for drug quantitation. Stability experiments for risperidone and paliperidone were conducted at 7, 20 and 37°C for 4 days using sterile and bacterially inoculated porcine blood. The drugs were stable in sterile blood at each temperature and in inoculated blood at 7°C, but degraded significantly in inoculated blood at 20 and 37°C. Complete loss occurred within 2 days when incubated at 37°C. The benzisoxazole‐cleaved degradation products for both drugs were identified as 2‐hydroxybenzoyl‐risperidone and 2‐hydroxybenzoyl‐paliperidone utilizing liquid chromatography quadrupole‐time‐of‐flight mass spectrometry and accurate mass measurements. The degradation products have been found in postmortem case studies, including one case where risperidone and paliperidone were not detected, indicating complete conversion can occur in situ.  相似文献   
8.
Calculation of a blood alcohol concentration (BAC) at the time of an offence by forward or back-extrapolation, using population average values for ethanol pharmacokinetic parameters or a single estimate of individual specific parameters, ignores the possibility of inter- and intra-subject variability. In order to estimate inter- and intra-subject variability in the elimination rate and absorption rate, BAC was measured over time in 12 male volunteers on 4 occasions. Subjects received 0.44 g kg(-1) body weight of ethanol on the first study day, and 0.70 g kg(-1) body weight on subsequent study days 1, 11 and 12 weeks later, to enable comparisons in variability over short and long time periods and when the same or different doses were administered. Evidence of both inter- and intra-subject variability was found, with inter-subject variability substantially smaller than intra-subject variability when the dose varied. Forensically important differences in pharmacokinetic parameters were observed within individuals between occasions. These findings could have an important impact on medico-legal issues related to ethanol pharmacokinetics.  相似文献   
9.
After 17 years of civil strife in Lebanon, an Office of Minister of State for Administrative Reform (OMSAR) was established in 1993 to plan for short‐term rehabilitation and long‐term institutional development within the public sector. Since external technical assistance to public administration was delivered through OMSAR, its role as a host agency for international aid donors' efforts in reform policy‐making and implementation is critical. The article discusses OMSAR's approach to channelling foreign aid for administrative development in post‐war Lebanon. Lessons from the Lebanese experience in post‐war institutional development may interest countries emerging from conflicts and trying to rebuild administrative infrastructure. Copyright © 2004 John Wiley & Sons, Ltd.  相似文献   
10.
This study utilized a justice framework to investigate punished subordinates' attitudinal reactions to specific disciplinary events. Results suggested that personality variables (negative affectivity and belief in a just world) influenced subordinate perceptions of the disciplinary event. In addition, belief in a just world had a direct effect on satisfaction with the supervisor, intention to leave, and organizational commitment. Contrary to expectations, harshness (a distributive aspect of the event) influenced perceptions of procedural justice and attitudes toward the institution (organizational commitment) and the leader (trust in supervisor), in addition to its influence on perceptions of distributive justice. The influence of procedural aspects of the event on attitudinal outcomes varied by dependent variable. The implications for future research and for management are discussed.  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