当代中国文化形态及其走向

中国的改革开放和社会转型,带来了传统与现代、本土与外来的文化交汇,催生了各种不同的文化形态,这大致可分为主流文化、精英文化与大众文化三种形态。社会和谐发展的前提应该是主流文化、精英文化与大众文化良性互动。然而在全球化背景下,这三种文化形态内部关系紧张,同时精英文化与大众文化深受消费主义的影响,出现了精英文化商品化与大众价值观扭曲现象,这是今后我国社会主义文化发展繁荣亟需解决的重要课题。     

公务员工作满意度与领导方式调查

关于公务员的工作满意度情况、对公务员主要采用什么领导方式、公务员工作满意度与领导方式之间的关系等问题,通过访谈、问卷调查和统计分析得出:六成公务员总体上对目前工作感到满意,不同类型公务员有不同工作满意度,目前最满意的是对同事的满意度,最不满意的是对工作晋升的满意度;七成公务员认为目前主要采用任务关系型领导方式,不同类型公务员有不同偏爱的领导方式;任务型领导方式与工作满意度之间没有显著关系,关系型和任务关系型领导方式与工作满意度之间存在显著影响。     

Institutional exclusion as a destabilizing factor: the mass unrest of 1 July 2008 in Mongolia

The paper discusses the 1 July 2008 mass protest in Mongolia. This event has no precedent in Mongolian history and represents a challenge for the social sciences as neither scholars nor political leaders predicted or even admitted its eventuality. Several forms of exclusion – economic, social and institutional – are considered as its potential source. It is argued that the theory of institutional exclusion allows making better sense of the situation. Institutional exclusion means the alienation of ordinary people from government and their inability to rely on the law and official procedures when being engaged in everyday activities. Two sources of primary data inform the analysis: a series of structured interviews with the protesters (N?=?20) and a collection of visual records made during the unrest (N?=?244). The data were processed using methods of both qualitative and quantitative content analysis.     

Trace detection of meglumine and diatrizoate from Bacillus spore samples using liquid chromatography/mass spectrometry

Following the September 11, 2001 terrorist attacks, letters containing Bacillus anthracis were distributed through the United States postal system killing five people. A complex forensic investigation commenced to identify the perpetrator of these mailings. A novel liquid chromatography/mass spectrometry protocol for the qualitative detection of trace levels of meglumine and diatrizoate in dried spore preparations of B. anthracis was developed. Meglumine and diatrizoate are components of radiographic imaging products that have been used to purify bacterial spores. Two separate chromatographic assays using multiple mass spectrometric analyses were developed for the detection of meglumine and diatrizoate. The assays achieved limits of detection for meglumine and diatrizoate of 1.00 and 10.0 ng/mL, respectively. Bacillus cereus T strain spores were effectively used as a surrogate for B. anthracis spores during method development and validation. This protocol was successfully applied to limited evidentiary B. anthracis spore material, providing probative information to the investigators.     

Comparative Analysis of the Chemical Profiles of 3,4-Methylenedioxymethamphetamine Based on Comprehensive Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry (GC × GC-TOFMS)*

Abstract: The chemical profiling of illicit drugs is an important analytical tool to support the work of investigating and law enforcement authorities. In our work, comprehensive two‐dimensional gas chromatography–time‐of‐flight mass spectrometry (GC × GC‐TOFMS) combined with nontargeted, pixel‐based data analysis was adapted for the chemical profiling of 3,4‐methylenedioxymethamphetamine (MDMA). The validity and benefit of this approach was evaluated by analyzing a well‐investigated set of MDMA samples. Samples were prepared according to a harmonized extraction protocol to ensure the comparability of the chemical signatures. The nontargeted approach comprises preprocessing followed by analysis of variances as a fast filter algorithm for selection of a variable subset followed by partial least squares discriminant analysis for reduction to promising marker compounds for discrimination of the samples according to their chemical profile. Forty‐seven potential marker compounds were determined, covering most of the target impurities known from the harmonized one‐dimensional profiling as well as other compounds not previously elucidated.     

Drug-facilitated sexual assault using tetrahydrozoline

Drug-facilitated sexual assault (DFSA) has been defined as the use of a chemical agent to facilitate a sexual assault. We report two cases of the use of tetrahydrozoline for DFSA. We believe this is the first report with urinary quantification of tetrahydrozoline levels postassault. Blood and urine were obtained c. 20 h postexposure in two cases of reported DFSA. Tetrahydrozoline was not detected in blood but was identified in urine in both victims. After initial identification in the urine using the 2010 update to the AAFS mass spectrometry database library, tetrahydrozoline was quantified at 114 and 150 ng/mL, respectively, using GC/MS. Two unique clinical features reported in these cases were intermittent periods of consciousness and postexposure vomiting. Use of GC/MS was successful in identifying tetrahydrozoline in the 100 ng/mL range up to 20 h postexposure. For victims with late presentation, urine may be a better sample for evaluation for tetrahydrozoline.     

Personal identification of cold case remains through combined contribution from anthropological, mtDNA, and bomb-pulse dating analyses

In 1968, a child's cranium was recovered from the banks of a northern Canadian river and held in a trust until the "cold case" was reopened in 2005. The cranium underwent reanalysis at the Centre for Forensic Research, Simon Fraser University, using recently developed anthropological analysis, "bomb-pulse" radiocarbon analysis, and forensic DNA techniques. Craniometrics, skeletal ossification, and dental formation indicated an age-at-death of 4.4 ± 1 year. Radiocarbon analysis of enamel from two teeth indicated a year of birth between 1958 and 1962. Forensic DNA analysis indicated the child was a male, and the obtained mitochondrial profile matched a living maternal relative to the presumed missing child. These multidisciplinary analyses resulted in a legal identification 41 years after the discovery of the remains, highlighting the enormous potential of combining radiocarbon analysis with anthropological and mtDNA analyses in producing confident personal identifications for forensic cold cases dating to within the last 60 years.     

Cyanide and amygdalin as indicators of the presence of bitter almonds in imported raw almonds

Abstract: Consumer complaints received by the U.S. Food and Drug Administration in August 2010 about raw organic almonds tasting “bitter” opened an investigation into the presence of bitter almonds in the imported product. Bitter almonds (Prunus amygdalus) contain the cyanogenic glucoside amygdalin, which hydrolyzes to produce cyanide. Ultraviolet–visible spectrophotometry was used to detect and quantitate cyanide, and liquid chromatography‐mass spectrometry was utilized to detect amygdalin in the submitted samples. Control bitter almonds were found to contain 1.4 mg cyanide/g and an estimated level of 20–25 mg amygdalin/g. The questioned samples contained between 14 and 42 μg cyanide/g and were positive for the presence of amygdalin. Sweet almonds were found to be negative for both compounds, at levels of detection of 4 μg cyanide/g and 200 μg amygdalin/g.     

Stereochemical Analysis of Methorphan Using (−)‐Menthyl Chloroformate

Abstract: Forensic laboratories around the world have seen an increase in the number of drug seizures containing methorphan. Levomethorphan is a narcotic and a controlled substance, and its enantiomer dextromethorphan is an antitussive agent used in over‐the‐counter medications. For the forensic analysis of seized drugs containing methorphan, it is important to report the stereochemical composition of the drug. Ideally, a method based on common forensic laboratory instrumentation is desirable. The use of the chiral derivatizing agent (?)‐menthyl chloroformate followed by routine gas chromatography–mass spectrometry analysis of the derivative was shown to successfully determine the stereochemical composition of methorphan. This approach was applied to a street seizure containing methorphan proving that it was pure dextromethorphan. The derivatives of dextro‐ and levomethorphan were subjected to mass spectroscopic and nuclear magnetic resonance analysis, which confirmed that the structure of the derivatives remained unchanged as a result of the derivatization process.     

政府在群体性事件各阶段中的应对之策

群体性事件从产生到发展直至最后爆发一般都要经过萌芽阶段、显露阶段、发展阶段和激化阶段四个阶段。因此,政府作为主导社会正常运行的一方,也要做到因势而为,采取预防和处置两种应对之策。在萌芽阶段,政府要高度重视改善民生在化解社会矛盾中的基础作用,并采取切实有效的措施建立民众利益表达机制。在显露阶段,政府要建立社会矛盾化解机制。在发展阶段,政府要努力畅通政府信访渠道,妥善处理具体案件和依法及时做好信息公开。在激化阶段,要坚持尽快平息事件原则,建立群体性事件的预警与协调机制,恰当谨慎使用警力,并注意引导社会舆论。