Postmortem examination of a former professional basketball player revealed an abnormal heart, most notably a single coronary artery. The literature on single coronary arteries is briefly reviewed, and the possible mechanism which caused the patient's condition is considered. This case is particularly unusual because of the patient's profession, which is so physically demanding. 相似文献
Although past research has developed scales for the incidence, prevalence, and fear of student-on-student victimization (SSV),
little is known about the scaling of perceived risk (i.e., the cognitive appraisal of the chances of experiencing SSV). Hence,
this study examined self-report survey data for the perceived risk of SSV as measured in the Adolescent Index for School Safety
(AISS). Children in grades 7 through 10 (n=337) in a single Florida public school completed the AISS. Factor analyses using
Maximum Likelihood Estimation with Oblimin Rotation identified nine unique factors for perceived risk. Reliability analyses
found standardized Cronbach Alphas that ranged from .64 to .91, and seven out of the nine identified scales were above .80,
which suggested good to excellent internal consistency. Future research should examine the content validity, construct validity,
and predictive validity for the AISS and other self-report surveys of SSV dynamics.
This publication was made possible by a grant [#97-MU-FX-KO12 (S-l)] from the Office of Juvenile Justice and Delinquency Prevention
(O.J.J.D.P.), United States Department of Justice (U.S.D.O.J.). This grant is administered through the Hamilton Fish National
Institute on School and Community Violence at George Washington University. This specific study was developed and implemented
by staff at: 1) East Carolina University’s Department of Criminal Justice; and 2) Florida State University’s Center for Educational
Research and Policy Studies. All points of view and opinions in this paper are those of the authors and do not necessarily
represent the official position or policies of East Carolina University, Florida State University, the Hamilton Fish National
Institute on School and Community Violence, the O.J.J.D.P., or the U.S.D.OJ. The authors would also like to thank Dr. Bill
Doerner and Jennifer Jolley for their support, editorial feedback, and insightful comments regarding earlier drafts of this
paper. 相似文献
Turkey in the Middle East By Philip Robins. Pinter for the Royal Institute of international Affairs. 1991.130 pp. £22.50. ISBNO 86187 198 7. PBk £8.95. ISBN 0 86187 1995.
Hitler Slept Late and other blunders that cost him the war By James P. Duffy. London: Praeger. 1991.176pp. £17.50.
Alliance within the alliance: Franco‐German Military Cooperation and the European Pillar of Defense By David G. Haglund. Boulder: Westview Press, 1991. 213 pp.
Homeward Bound? Allied Forces in the New Germany Edited by David G. Haglund and Olaf Mager. Boulder: Westview Press, 1992. 299 pp. £24.95
Avoiding War: Problems of crisis management By Alexander L. George (ed.), Westview Press, 1991. 590 pp. £16.95.
The Future of NATO: Facing an Unreliable Enemy in an Uncertain Environment By S.N. Drew et al. Praeger Publishers, New York, 1991. pp. 206.
Parliament and international relations Edited by Charles Carstairs and Richard Ware. Milton Keynes: Open University Press, 1991. 195 pp. £12.99 (paperback)相似文献
The central leaders in China adopted a tax assignment system and centralized taxation in 1994 with the goal of increasing central tax revenues. By setting up the National Tax Bureau, the central leaders intended to leave central tax collection undisturbed by local influences. However, informal practices at the local level revealed that the local governments colluded with the central tax bureaucrats stationed in their regions at the expense of central interests. The need to develop local economies, an important task assigned to local governments, is one important reason behind local interference in central tax collection. This study finds that the central government coped with this problem by changing the incentives of the provincial party secretaries through linking central tax collection in a jurisdiction with their chance of promotion. 相似文献
The purpose of this study is to evaluate how Toyota managed the recall crisis through surveying public relations experts. By gathering and analyzing the perspectives of public relations (PR) executives and professors toward the Toyota recall crisis, this study tries to evaluate and measure Toyota's public relations strategies for managing the recall crisis. To collecting data, 34 public relations professors and 92 public relations practitioners were interviewed. According to the findings of this study, PR professionals emphasized that Toyota responded poorly (slowly/dishonestly) and lacked communication with the public. With regard to improvements Toyota may work on, PR experts advised not only to resolve internal corporate problems but also to strengthen the relationships with consumers and obligation to investigate further. In regarding with the lessons from the Toyota's crisis, PR professionals highlighted that it is necessary to take anticipated preventative measures and improve investigative duties and preparation for better dealing with crises. 相似文献
Journal of Youth and Adolescence - Asian Americans are simultaneously stereotyped as a perpetual foreigner and a model minority. This cross-sectional study of 308 Filipino American youth (mean age... 相似文献
Cholesterol and squalene are fatty materials of latent fingermarks that can be utilized for dating methodologies and visualization techniques. Previous studies have suggested these compounds undergo degradation in fingermarks as a function of time (days) and light at ambient temperature. However, studies assessing how their composition changes at low and high temperatures over short periods of time (hours) have not been published previously. Here, we performed quantitative analysis of cholesterol and squalene in natural fingermark residue using PVDF membrane, after exposure to a range of temperatures (−20 to 100°C) for 4 and 8 h. We found that levels of both fatty materials remained constant at −20 to 60°C, but both showed significant reduction at 100°C, over short exposure times. These results indicate that cholesterol and squalene are detectable at −20 to 60°C, whereas at 100°C or higher, both are lost due to rapid thermal degradation. 相似文献
Lophophora is a member of the Cactaceae family, which contains two species: Lophophora williamsii and L. diffusa. Lophophora williamsii is an illegal plant containing mescaline, a hallucinogenic alkaloid. In this study, a novel method based on a single nucleotide polymorphism (SNP) assay was developed for identifying L. williamsii; this assay reliably detects SNPs within chloroplast DNA (rbcL, matK, and trnL-trnF IGS) and was validated for identifying Lophophora and L. williamsii simultaneously. The chloroplast DNA sequences from four L. williamsii and three L. diffusa plants were obtained and compared using DNA sequence data from approximately 300 other Cactaceae species available in GenBank. From this sequence data, a total of seven SNPs were determined to be suitable for identifying L. williamsii. A multiplex assay was constructed using the ABI PRISM® SNaPshot™ Multiplex Kit (Applied Biosystems, Forster City, CA) to analyze species-specific SNPs. Using this multiplex assay, we clearly distinguished the Lophophora among 19 species in the Cactaceae family. Additionally, L. williamsii was distinguished from L. diffusa. These results suggest that the newly developed assay may help resolve crimes related to illegal distribution and use. This multiplex assay will be useful for the genetic identification of L. williamsii and can complement conventional methods of detecting mescaline. 相似文献