紫外导数光谱法与吸收光谱法的比较

作者通过导数光谱法与吸收光谱法的对比实验,归纳出导数光谱法不但具有吸收光谱法的一般优点,还具有以下特点;(1)高分辨率和灵敏度;(2)定性准确;(3)能精确测定λmax和“肩”峰的波长;(4)能消除背景干扰;(5)能分析混和样品。     

大鼠早期心肌缺血心肌肌钙蛋白T脱失的组化研究

目的研究早期心肌缺血大鼠模型上心肌肌钙蛋白T的脱失情况。方法应用免疫组化LSAB法显色观察。结果缺血15分钟,大鼠心肌肌钙蛋白T即有明显脱失,随缺血时间的延长,脱失面积呈扩大趋势。计算机图像分析显示缺血大鼠心肌肌钙蛋白T的脱失面积与正常大鼠心肌之间存在显著性差异。结论心肌肌钙蛋白T是诊断早期心肌缺血的较为敏感的指标之一。     

《法律科学》1999-2003年载文、作者及引文计量分析与研究

《法律科学》选题丰富 ,内容专深 ,社会反响较大 ;作者队伍相对稳定 ,诸多知名学者特别是中青年学术新秀是其作者队伍的中坚 ;编辑出版符合《中国高等学校社会科学学报编排规范》 ;已经形成了自己的办刊特色。《法律科学》是我国法学研究领域中高层次的学术性专业刊物之一 ,在国内同类专业刊物中具有较大的社会影响力。     

A critical discourse analysis of pavement advertisements of herbal medicine and spiritual healing services in Central Johannesburg

Abstract

This article discusses the language in a range of advertisements for herbal medicines and spiritual healing services, as found in fliers distributed on the pavements of the Johannesburg central business district. The socio-cognitive approach to critical discourse analysis (CDA) was employed to analyse the language used. The purpose was to identify the ways in which the producers of the advertisements, through careful choice of discourse, attempt to manipulate potential customers. It was established that the producers purported to have solutions to a broad range of problems affecting society. These included sexual, marital, business-related and social problems, for which the healers claimed to have quick and permanent solutions. Stylistic techniques include the use of juxtaposition, rhetorical questions, hyperbole, punctuation marks, indigenous languages, first-person narratives in testimonies, illustrations and the naming of herbs. The conclusion can be drawn that the advertisements demonstrate a perceived power imbalance between their producers and the target audiences. This may lead certain clients to be deceived by the herbalists and spiritual healers, sometimes with disastrous consequences. It is, however, acknowledged that not everyone in South African society believes all the claims made in these advertisements.     

A journalism quarterly potpourri

Abstract

How do the news media help construct election mandates? By interpreting an election victory broadly, the news media can facilitate the implementation of a newly elected government's program. Conversely, the media can constrain a newly elected government by interpreting the election as influenced by factors other than ideology, primarily retrospective evaluations of the outgoing government's performance. Studies of how the media interpret election results have offered only speculation on why the media choose certain narratives while discarding plausible alternatives. Through a systematic examination of six Canadian elections, this article identifies key variables that explain the media's choices. I found that the media tended to confer a mandate when the victorious party focused on its policy intentions during the campaign and when the party was conservative; they tended to confer a “personal mandate” when newly elected leaders were facing their first election. In general, the news media quickly settled on one narrative, did not support this decision using quantitative data such as exit polls, and tended to depoliticize the public sphere by framing most results as devoid of ideological content.     

The Malaysian “Islamic” State versus the Islamic State (IS): evolving definitions of “terror” in an “Islamising” nation-state

ABSTRACT

This article provides a study of how the Malaysian state defines and redefines “terror” as the nature of militancy changes from the Communist insurgency to present day’s Islamist jihadism. Tracing such definitional changes, the article demonstrates how the portrait of a terrorist not only is inherently political (and at certain junctures, politicised), but also reflects the changing nature of the state. While able to ethnicise and externalise the Communist Terrorists (CTs), the rise of Islamist militancy forced the Malaysian state to shelve the term “terrorist” in favour of religious “deviancy” until the advent of the “war on terror”. Advancing along a state-driven Islamisation project, the discursive ideal that is the “Islamic state”, was securitised (1980–2001), normalised (2001–2013), and resecuritised (2014–2016) as a balancing act not only to neutralise the security threat but also to augment the state’s “Islamic” credentials for domestic political gains. Following the emergence of the Islamic State (IS), I argue that the Malaysian state is now embroiled in an “Islamic state versus Islamic State” dilemma, where in the face of a far enemy it cannot decisively eliminate, the state has no choice but to defend itself as a sovereign nation-state as well as an “Islamic” one, further problematising Islam in discourses of security and violence.     

Tracking Movement and Temperature Selection of Larvae of Two Forensically Important Blow Fly Species Within a “Maggot Mass”

The current study responds to the lack of understanding about the temperatures experienced by individual blow fly larvae within “maggot masses.” The temperature selection of both aggregating (in a mass) and nonaggregating larvae was compared and their pattern of movement assessed. Infrared imaging determined the temperatures within a mass and in the vicinity of the constituent individual larvae, whose movements were tracked by dyeing their tissues red. Individual Chrysomya rufifacies larvae selected temperatures above 27°C, significantly higher than the temperature selected by Calliphora vicina larvae (24.5°C). However, this same difference was not seen within a mass, with both species selecting temperatures around 28°C. Larval movement in a mass was nonrandom, indicating that larvae actively select their position in a mass. Furthermore, larvae have a strong tendency to select the hottest part of a mass; therefore, maximum mass temperatures might provide a reliable proxy for the actual temperatures experienced by larvae.     

Distortion in Fingerprints: A Statistical Investigation using Shape Measurement Tools

Friction ridge impression appearance can be affected due to the type of surface touched and pressure exerted during deposition. Understanding the magnitude of alterations, regions affected, and systematic/detectable changes occurring would provide useful information. Geometric morphometric techniques were used to statistically characterize these changes. One hundred and fourteen prints were obtained from a single volunteer and impressed with heavy, normal, and light pressure on computer paper, soft gloss paper, 10‐print card stock, and retabs. Six hundred prints from 10 volunteers were rolled with heavy, normal, and light pressure on soft gloss paper and 10‐print card stock. Results indicate that while different substrates/pressure levels produced small systematic changes in fingerprints, the changes were small in magnitude: roughly the width of one ridge. There were no detectable changes in the degree of random variability of prints associated with either pressure or substrate. In conclusion, the prints transferred reliably regardless of pressure or substrate     

Obscuring sexual crime: examining media representations of sexual violence in Megan’s law

Sexual violence remains a pervasive and persistent social problem. In 1996, Congress enacted Megan’s Law, dictating mandatory community notification and potential civil commitment for those deemed by the State to be dangerous sexual offenders. In 2013, Megan’s Law continues to influence the treatment of sexual offenders under law and the social construction of a highly publicized, yet statistically rare, sexual crime – the rape and murder of a young female child by a depraved male stranger. This influence highlights the extent to which this personalized crime bill shapes the social construction of sexual violence in terms of sex and gender systems. This paper examines how sex and gender shape media discourses of the sexual offender and victim that are mobilized in the legislative debate on Megan’s Law. Drawing on theoretical ideas from cultural studies and feminist legal scholarship, we employ discourse analysis to analyze the legislative debate on Megan’s Law. We find that high-profile media images of sex offenders and victims are relied on to construct a singular image of sexual violence, whereby a child is victimized by an adult sexual predator. These images draw on traditional, conservative notions of gender and sexuality.     

Out of sight,but not out of mind: Traces of nearby devices' wireless transmissions in volatile memory

An IEEE 802.11 wireless device can leave traces of its presence in the volatile memories of nearby wireless devices. While the devices need to be in radio range of each other for this to happen, they do not need to be connected to the same network—or to any network at all. Traces appear in the form of full wire-type frames; a residue of the signals in the ether. We examine types of information that can be extracted from such residual frames and explore the conditions under which traces develop and persist. Their availability is determined by factors in both in the external environment (the types of signals in the ether) and the internal environment (the configuration and particulars of a device's wifi stack). To isolate some of these factors, we have created memory dumps of devices in various environments and configurations. Analysis of the dumps has offered insights into the conditions determining creation and decay of the traces. The results indicate that they will be available in a limited number of real-world scenarios. We conclude with practical advice on triaging and preservation.