计算机X线成像测量青少年四肢长骨推算身高

目的 应用计算机X线成像(computed radiographv,CR)测量活体上肢骨及胫腓骨正位片上相关指标,建立适合当代中国四川地区汉族14～18岁人群运用上肢骨及胫腓骨推算身高的数学模型.方法 对194例14～18岁四川汉族健康青少年进行左侧肢体上肢骨及胫腓骨正位摄片,测量特定标志点间距离,同时准确测量其身高....     

Gunshot residue in Chicago police vehicles and facilities: an empirical study

Suspects in shooting investigations in Chicago are routinely transported in department vehicles and detained in department facilities prior to gunshot residue (GSR) evidence collection. The GSR test results are used to associate the suspect with primary exposure to GSR. The potential for these vehicles and facilities being sources of secondary GSR contamination needed to be determined. A total of 201 samples were collected from randomly selected vehicles and detention facilities. The sampling collected trace materials from surfaces that suspects' hands may contact during the arrest process. These samples were examined for the presence of GSR particles using scanning electron microscopy. Upon completion of the automated analysis, those particles that met an initial GSR screening criterion were relocated and reanalyzed. The locations where GSR particles were recovered allowed us to make recommendations to the Chicago Police Department with regard to transporting and detaining these suspects. The low number of GSR particles recovered suggests that the potential for secondary contamination, although present, is relatively low.     

Soil forensics: How far can soil clay analysis distinguish between soil vestiges?

Soil traces are useful as forensic evidences because they frequently adhere to individuals and objects associated with crimes and can place or discard a suspect at/from a crime scene. Soil is a mixture of organic and inorganic components and among them soil clay contains signatures that make it reliable as forensic evidence. In this study, we hypothesized that soils can be forensically distinguished through the analysis of their clay fraction alone, and that samples of the same soil type can be consistently distinguished according to the distance they were collected from each other. To test these hypotheses 16 Oxisol samples were collected at distances of between 2 m and 1.000 m, and 16 Inceptisol samples were collected at distances of between 2 m and 300 m from each other. Clay fractions were extracted from soil samples and analyzed for hyperspectral color reflectance (HSI), X-ray diffraction crystallographic (XRD), and for contents of iron oxides, kaolinite and gibbsite. The dataset was submitted to multivariate analysis and results were from 65% to 100% effective to distinguish between samples from the two soil types. Both soil types could be consistently distinguished for forensic purposes according to the distance that samples were collected from each other: 1000 m for Oxisol and 10 m for Inceptisol. Clay color and XRD analysis were the most effective techniques to distinguish clay samples, and Inceptisol samples were more easily distinguished than Oxisol samples. Soil forensics seems a promising field for soil scientists as soil clay can be useful as forensic evidence by using routine analytical techniques from soil science.     

基于腰椎高度X线测量技术推断四川汉族女性身高

目的通过腰椎高度X线测量技术,建立四川汉族女性身高的数学模型,为法医人类学研究积累基础数据。方法收集206例四川汉族女性个体按年龄分为A、B、C 3组,其中A组(206例)不分年龄,B组(116例)为20~45岁,C组(90例)为45岁以上,并应用计算机X线摄影(computer radiography,CR)技术分别测量所有样本腰椎CR片中5个椎体(L1~L5)前缘、后缘、中央高度(x1~x15),脊柱腰段中央总长度(x16),同时测量每个个体真实身高,对各测量指标联合与身高的相关性进行线性回归分析,建立推断身高的数学模型,并重新选取62例样本代入数学模型,检验模型的准确性。结果所建立的数学模型经线性回归模型假设检验,均具有统计学意义(P0.05),回归方程的推断标准误为2.982~5.004cm,相关系数为0.370~0.779,复相关系数为0.533~0.834。对每组相关系数、复相关系数最高的方程进行回代检验,其中A组的y=100.33+1.489 x3-0.548 x6+0.772 x9+0.058 x12+0.645 x15的准确率最高,为80.6%(±1SE)、100%(±2SE)。结论本研究建立的数学模型适用于推断四川汉族女性身高。     

Daring to Be Heard: Advertorials by Organized Interests on the Op-Ed Page of The New York Times , 1985-1998

Advertorials are a form of outside lobbying that organized interests use to influence policymakers and attentive publics. It is apparent from their popularity that organized interests consider them to be an effective form of political communication. This article analyzes 2,805 organized interest advertorials that appeared on the lower right quadrant of The New York Times op-ed page from 1985 to 1998. Advertorials take two broad forms: (a) image advertorials, which are paid messages by organized interests designed to create a favorable climate of opinion, and (b) advocacy advertorials, which are sponsored messages intended to win support for an interest's viewpoints on controversial issues. Typologies of advertorials (11 categories), organized interests (21 categories), corporate and noncorporate economic interests (29 categories), and policy content (28 categories) are used to document annually and over time who is sponsoring advertorials, what types of advertorials are being used, what interests avail themselves of advertorial campaigns, which issue areas are receiving attention, what images and policy messages are being communicated, which organizations sponsor the most advertorials, and the timing of such political advertising campaigns. We find over time an increasing number of advertorials, an increasing number and diversity of sponsoring interest organizations, an increasing trend toward advocacy advertorials, a continuing but declining sponsorship dominance by corporate interests, a shifting policy issue emphasis that corresponds to events in the political environment, and evidence that organized interests employ a variety of sponsorship strategies.     

To play with phantoms : Jean Baudrillard and the evil demon of the simulacrum

It is only by historically contextualizing Baudrillard's concept of the simulacrum that we can understand its form and effects – its historical efficacy,its nihilistic ungrounding of certain epistemological foundations, its subsequent demonization in the West, and the latter's attempt to domesticate its power. Baudrillard opposes the contemporary simulacrum with the Durkheimian symbolic but, as a privileged critical site functioning as the 'real', this only repeats the Western domestication. Ultimately, however, the diabolical power of the simulacrum is too great for the symbolic, and its success today overwhelms Baudrillard himself. The pact with its demon is a dangerous one.     

Trajectory Reconstruction Through Analysis of Trace Evidence in Bullet–Intermediate Target Interaction by SEM/EDX

Abstract:  A young male was shot to death by a police officer with a Chinese Type 64 7.62 mm pistol when he was dealing with an aggravated assault arising from a traffic accident. By using scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM/EDX), trace deposits on the discharged bullet and the intermediate target, i.e., a concrete telegraph pole at the scene, were identified to be from each other. The result demonstrated the bullet causing the death ricocheted from the concrete telegraph pole before striking the victim, thus indicating the incident was accidental. The case report illustrates the evidential value of trace materials derived, respectively, from discharged bullets and intermediate targets in bullet–intermediate target interaction for trajectory reconstruction. In addition, it indicates that the SEM/EDX method with its nondestructive nature, compared to other methods, may be more helpful in certain situations in determining the origins of trace evidentially valuable deposits on substrates.     

论礼仪教师的外在形象美

礼仪教育工作的特殊性要求礼仪教师不仅具有内在美,更要注意自己的外在形象美,要从仪容服饰、言谈举止等方面塑造自己的外在形象,体现出礼仪教师的审美情趣和道德情操,给学生以美的熏陶和感染。     

试论警察形象建设

人民警察的形象代表着公安机关乃至整个政府工作机关的形象。加强警察形象建设刻不容缓,要妥善处理好建设警察文化、警察道德、强化警察管理、提高警察素质的关系,努力提升人民警察在人民群众心中的形象。     

New media and strategic narratives: the Dutch referendum on Ukraine – EU Association Agreement in Ukrainian and Russian Internet blogs

ABSTRACT

This article analyses two confronting narratives authored by Ukrainian and Russian bloggers who reported the Dutch referendum held on 6 March 2016, and discussed Dutch citizens’ referendum vote on the Ukraine–EU Association Agreement. The considered narratives, addressed to the Ukrainian and Russian audiences respectively, are viewed as strategic because they specifically portray political actors of the referendum “drama” – the Netherlands, the European Union (EU), Ukraine and Russia. These actors are significant participants of European international relations, and their perceptions of one another are important for European security at the present time of critical diplomacy. In this paper, information about the DUTCH REFERENDUM obtained from the new media texts is regarded as a narrative-based political concept (NBPC). It is argued that this concept has different versions, or images that reflect the narrators’ biased perceptions imposed upon the public. Identification and comparison of such images require a particular methodology. Therefore, the objective of this paper is two-fold: to expose the two confronting versions of a strategically relevant political image, and to develop an authentic, interdisciplinary methodology for its analysis. The proposed methodology is informed by the ontology theory employed in cognitive science and cognitive linguistics.