Sleep deprivation does not mimic alcohol intoxication on field sobriety testing

Previous research shows that sleep deprivation (SD) produces cognitive impairment similar to that caused by alcohol intoxication. Individual studies suggest that SD also causes deficits in motor skills that could be mistaken for intoxication. Consequently, SD often is used as a defense when an impaired driver is charged with driving while intoxicated. Twenty-nine adult subjects participated in two test sessions each, one after a full night's rest and the other after wakefulness of at least 24 h. Subjects consumed prescribed amounts of alcohol during each session. Law enforcement officers conducted field sobriety tests identical to those with which a driver would be assessed at roadside. Researchers also measured clinical responses of visual function and vital signs. The presence and number of validated impairment clues increase with increasing blood alcohol concentration but not with SD. Thus, SD does not affect motor skills in a manner that would lead an officer to conclude that the suspect is intoxicated, unless intoxication also is present.     

Preliminary investigations into tris(2,2'-bipyridyl) ruthenium III as a chemiluminescent reagent for the detection of 3,6-diacetylmorphine (heroin) on surfaces

The use of tris(2,2'-bipyridyl) ruthenium (III) as a chemiluminescent spray reagent spot-test for heroin is discussed. Two forms of the reagent are investigated an aqueous and an anhydrous where both were found to give vastly different results. The aqueous reagent giving slow, low intensity chemiluminescence whilst the anhydrous reagent gave a fast, bright response in the presence of 3,6-diacetylmorphine. The anhydrous reagent is less sensitive the slow, intensity response is characteristic of only two opiates tested 3,6-diacetylmorphine and 3-monoacetylmorphine.     

液基细胞学技术对减少临床医疗纠纷的应用价值

目的探讨液基细胞学技术对于减少临床医疗纠纷的价值。方法对1531例样本分别用液基细胞学方法和传统巴氏涂片技术进行宫颈细胞学涂片制作,其中液基细胞学方法分别用新柏氏耗材和昂佰氏耗材;涂片根据TBS 2001标准进行诊断;细胞学诊断为LSIL以上病变(包括LSIL、HSIL、SCC和AC)者组织活检进行组织学诊断;应用SPSS11.0软件进行数据分析。结果液基细胞学方法同传统巴氏方法相比,在标本满意度、敏感度、特异度和准确性、假阴性率和误诊率等方面有显著统计学差异(P<0.05),新柏氏和昂佰氏获得结果之间无明显差异。结论液基细胞学技术可以有效提高宫颈癌普查的诊断水平,从而有效防止和减少医疗纠纷的发生;昂佰氏耗材可以替代新柏氏耗材进行液基细胞学检查。     

Preparation of pyrolysis reference samples: evaluation of a standard method using a tube furnace

A new, simple method for the reproducible creation of pyrolysis products from different materials that may be found at a fire scene is described. A temperature programmable steady-state tube furnace was used to generate pyrolysis products from different substrates, including softwoods, paper, vinyl sheet flooring, and carpet. The temperature profile of the tube furnace was characterized, and the suitability of the method to reproducibly create pyrolysates similar to those found in real fire debris was assessed. The use of this method to create proficiency tests to realistically test an examiner's ability to interpret complex gas chromatograph-mass spectrometric fire debris data, and to create a library of pyrolsates generated from materials commonly found at a fire scene, is demonstrated.     

Chemistry in crime investigation: sodium percarbonate effects on bloodstains detection

Chemistry plays a leading role in crime investigation. In the study of bloodstains, chemical reactions provide the means for the detection. All these procedures have been thoroughly studied. However, recently, a new source of error has been found: washing stains with "active oxygen" detergents abrogates presumptive and human hemoglobin tests for bloodstains (although visible). The aim of this investigation was to evaluate the ability of pure sodium percarbonate-main component of detergents-to abrogate presumptive and human hemoglobin tests. Then, a solution to this problem could be found. The results demonstrate that pure sodium percarbonate-itself-is able to abrogate all tests, as well as the different degrees to which each of them is affected by the product. Consequently, faced with a stain of bloody appearance, even the preliminary tests are negative; it is advisable to analyze the DNA. Otherwise, the opportunity of obtaining valuable information is lost.     

德国法学教育述评

21世纪德国法学教育改革的重点是:加快培养过程的现代化和授课形式的多样化;通过优化录取和优化培养,提高学生质量和提高国际竞争力。学者建议:授予法学士学位(前提:修满6个学期的课程),以此取代到目前为止所实行的定向和中期考试;可提前用笔试和口试的形式进行第一次国家考试中的主科考试(如刑法或公法);从第5学期开始,深化通选课的学习;将第一次国家考试的校内考核比例确定为40%(5%为基础课,35%为重点课);将部分教学管理的决策权下放到院系;引入硕士学位课,以补充。     

当代公共管理研究的范式观--一项经验研究

以经验事实为依据,勾画出了指导当代美国公共管理研究的范式观.在经验分析的基础上,作者认为,有关公共管理领域是否具有知识核心及其与学科的发展之间的相关性的争论正越来越不重要,因为答案已经显现.重要的是从事公共管理研究的学者应具有清醒的学科自我意识以及对现有的范式有更为清晰的把握.公共管理学科对本领域的常规科学研究活动的自觉意识能够给本学科提供更为清晰的研究焦点,能够提升澄清谬见的敏锐性,进而推动公共管理理论的发展.     

Eyeball Position in Facial Approximation: Accuracy of Methods for Predicting Globe Positioning in Lateral View

This study measured the accuracy of traditional and validated newly proposed methods for globe positioning in lateral view. Eighty lateral head cephalograms of adult subjects from Central Europe were taken, and the actual and predicted dimensions were compared. The anteroposterior eyeball position was estimated as the most accurate method based on the proportion of the orbital height (SEE = 1.9 mm) and was followed by the “tangent to the iris method” showing SEE = 2.4 mm. The traditional “tangent to the cornea method” underestimated the eyeball projection by SEE = 5.8 mm. Concerning the superoinferior eyeball position, the results showed a deviation from a central to a more superior position by 0.3 mm, on average, and the traditional method of central positioning of the globe could not be rejected as inaccurate (SEE = 0.3 mm). Based on regression analyzes or proportionality of the orbital height, the SEE = 2.1 mm.     

Comparison of Catalytic and Immunological Amylase Tests for Identifying of Saliva from Degraded Samples

The stability of salivary α‐amylase is a critical factor in both catalytic and immunological method‐based forensic saliva identification. This study aimed to assess the sensitivity of catalytic and immunological tests on degraded saliva samples. Degraded saliva stains were prepared by microbial decomposition using humid soil. Salivary α‐amylase activity was catalytically detected both qualitatively and quantitatively using the Phadebas^® amylase test. As immunological methods, we conducted qualitative and quantitative tests using the RSID?‐saliva test and ELISA, respectively. Salivary α‐amylase activity of degraded samples (incubated at 37°C for 12 h) was significantly lower than that of controls in the quantitative tests. All the degraded samples obtained by the humid soil produced negative results in the Phadebas^® tests, but showed positive results in the RSID?‐saliva test and ELISA. These results suggest that immunological tests are effective for testing degraded saliva samples that have lost their enzymatic activity.     

姬松茸液体发酵条件的研究

该文对姬松茸液体发酵条件进行了研究。考察了发酵时间对姬松茸液体发酵的影响,确定最佳发酵周期为9天.对发酵培养基中葡萄糖、豆粕及麸皮这三个组分选择了三水平进行正交试验、方差分析。结果表明发酵培养基中葡萄糖组分对姬松茸生物量的影响极显著。最优培养基组合为葡萄糖3%,麸皮1.5%,豆粕1.5%。按最优培养基组合进行发酵试验,姬松茸生物量可达到最高值8.576 g/L。