Detection and Identification of Explosive Particles in Fingerprints Using Attenuated Total Reflection-Fourier Transform Infrared Spectromicroscopy

Abstract:  The application of attenuated total reflection (ATR)-Fourier transform infrared (FTIR) spectromicroscopy for detection of explosive particles in fingerprints is described. The combined functions of ATR-FTIR spectromicroscopy are visual searching of particles in fingerprints and measuring the FTIR spectra of the particles. These functions make it possible to directly identify whether a suspect has handled explosives from the fingerprints alone. Particles in explosive contaminated fingerprints are either ingredients of the explosives, finger residues, or other foreign materials. These cannot normally be discriminated by their morphology alone. ATR-FTIR spectra can provide both particle morphology and composition. Fingerprints analyzed by ATR-FTIR can be used for further analysis and identification because of its non-destructive character. Fingerprints contaminated with three different types of explosives, or potential explosives, have been analyzed herein. An infrared spectral library was searched in order to identify the explosive residues. The acquired spectra are compared to those of finger residue alone, in order to differentiate such residue from explosive residue.     

当前加勒比地区的发展

加勒比共同体多数成员都是中等收入的发展中国家,它们的国土面积狭小,但经济的对外开放程度相对较高.除了苏里南和海地之外,加勒比共同体成员国都曾经是英国的殖民地.     

Disrupting civility: amateur intellectuals,international lawyers and TWAIL as praxis

Abstract

This paper is a reflection on the role of intellectuals in engaging with Palestinian solidarity movements and liberation discourses, and on the place of international lawyers specifically within that context. The paper considers ‘the question of Palestine’ as a rigorous test for intellectuals in the Global North today, and examines particular debates over free speech, civility and balance that unfolded in the wake of Israel’s 2014 war on Gaza. It considers the interventions of international lawyers in these debates with reference to Edward Said’s ‘amateur’ and ‘professional’ intellectuals, and explores ways in which anti-colonial international lawyers (as amateur intellectuals) can transcend prevailing professional orthodoxies to deploy language, arguments or tactics that rupture liberal legal processes and narratives on Palestine.     

Child abuse potential and parenting stress within maltreating families

This study examined the relationship between child abuse potential and parenting stress in mothers and fathers receiving services for child maltreatment. Significant differences were found between perpetrating and nonperpetrating parents. Nonperpetrating parents reported more problems with family, greater total parenting stress and child-related stress, and greater stress from child demandingness, adaptability, acceptability, and distractibility. No significant gender differences in child abuse potential and parenting stress were found. Aspects of parent related stress moderated the relationship between child related stress and abuse potential. Perceived stress from parenting sense of competence was isolated as a variable that significantly increased abuse potential at medium and high levels of child-related stress.     

Improving Judicial Controls over the Pretrial Development of Civil Actions: Model Rules for Case Management and Sanctions

This article follows two earlier pieces in which the author reported the findings of a pilot empirical exploration of how well the discovery system in civil litigation is functioning. Brazil begins by focusing on the principal problems his field studies exposed and by suggesting a theory of discovery reform which responds to the nature and sources of those problems. His principal thesis is that too often neither judges nor attorneys assume sufficient responsibility for the discovery system as a system. Most of this article is devoted to two major proposals that are designed to promote in the judiciary and in counsel a sense of responsibility for the pretrial system and to equip the judiciary to convert that sense into action. Brazil proposes a comprehensive model rule that courts could use to manage the pretrial development of civil actions. He then uses his model as a background for suggesting modifications to and extensions of the proposed revision of Rule 16 that the Advisory Committee on Civil Rules has circulated for comment. He also offers a critique of current provisions for sanctions and advances an alternative sanctions rule that acknowledges a right to compensation for damages caused by an opponent's breach of pretrial obligations and that reduces the scope of judicial discretion to refuse to impose compensatory awards.     

Policy science: A conceptual and methodological analysis

In the first section policy science is differentiated from policy analysis, the notion of policy is defined, and an analysis of the concept of policy science is offered which gives emphasis to what is unique in this intellectual endeavor when it is conceived as a general method of problem solving. Section II provides a discussion of the criteria of rationality for the conduct of policy science. Attention is focused upon the methodological differences between science and policy science and upon certain methodological difficulties which are peculiar to policy science. The third section gives consideration to one important relationship between facts and values in the policy science process. While it is generally well recognized that values enter into policy science in a way they do not enter into science, it is also widely held that they do not operate in such a way as to frustrate the central objective of the policy scientist (i.e., the solution or alleviation of a policy problem). It is argued that the relation between values and facts in policy science is frequently such as to have this undesired frustrative effect.