Detection of visible and latent fingerprints using micro-X-ray fluorescence elemental imaging

Using micro-X-ray fluorescence (MXRF), a novel means of detecting fingerprints was examined in which the prints were imaged based on their elemental composition. MXRF is a nondestructive technique. Although this method requires a priori knowledge about the approximate location of a print, it offers a new and complementary means for detecting fingerprints that are also left pristine for further analysis (including potential DNA extraction) or archiving purposes. Sebaceous fingerprints and those made after perspiring were detected based on elements such as potassium and chlorine present in the print residue. Unique prints were also detected including those containing lotion, saliva, banana, or sunscreen. This proof-of-concept study demonstrates the potential for visualizing fingerprints by MXRF on surfaces that can be problematic using current methods.     

Hyaluronidase as a liquefying agent for chemical analysis of vitreous fluid

Vitreous humor is a suitable specimen for postmortem clinical chemistry because the analytes remain relatively stable after death and they closely reflect blood levels immediately prior to death. The viscous nature of vitreous fluid, however, presents analytical problems including imprecision and inaccuracy. Various preanalytical treatments, such as boiling, high speed centrifugation, microfiltration and dilution have been used. These techniques are labor intensive and add to imprecision and inaccuracy. Because glycosaminoglycans contribute significantly to the viscosity of vitreous humor, we used hyaluronidase as a liquefying agent. We compared the results of analyses in 33 vitreous humor specimens after hyaluronidase treatment with the results after either no treatment or specimen dilution. Seventeen of the 33 specimens could not be analyzed without dilution. Even after dilution, several analytes still could not be measured. Hyaluronidase treatment negated the need for sample dilution and had no significant effect on the analyses.     

Between class and nation: Ideology and radical Basque ethnonationalism

This article uses the case of the Basque country as an example of the apparently ironic situation where, in the face of the demise of Socialist regimes in Europe after 1989, ethnic nationalist movements pursue an avenue of continued radicalism. These movements, which include political parties, trade unions, youth movements, and other organizations, try to combine a leftist appeal to the working class with a call to support the nationalist demands of a given ethnic group that the movements claim has been oppressed by other groups. The article explores how these movements justify their ethnonationalistic appeals to the working class. It also examines the relevance of these movements to their respective regions and the support that they find within these regions. Lastly, the paper speculates on what direction the politics of their respective regions might take in the future.     

Sheikh Wahbah al-Zuhaili on international relations: the discourse of a prominent Islamist scholar (1932–2015)

In recent years, radical and violent Islamist movements – such as al-Qaeda and its offshoot the Islamic State in Iraq and Syria – have seized the spotlight. A corollary of this preoccupation has been the proliferation of studies on the political thought of radical Islamist figures such as Abu Muhammad al-Maqdisi, Ayman al-Zawahiri and Osama bin-Laden. By contrast, scant attention has been paid to the thought of moderate contemporary Sunni Islamist scholars. This article attempts to rectify this situation by focusing on the international relations discourse of a prominent Syrian Islamist thinker Sheikh Wahbah al-Zuhaili (hereafter Zuhaili). The article examines Zuhaili's views on three central and interrelated topics: (1) the nature and underpinning principles of international relations; (2) war; and (3) the role of international law and international norms and conventions in international relations. By shedding light on Zuhaili's thought and situating it in its proper ideational and historical contexts, the article concludes that radical Islamist ideology is at the periphery of contemporary Islamist conceptualizations of international relations while the epicentre is held by mainstream Islamists whose perspectives on international relations are fairly compatible with prevalent western views, especially those emanating from the Realist school.