The logic of cartel car bombings in México

The war on drugs in México has seen an unprecedented level of violence committed against civilians, the government and rival groups. The bulk of this violence has occurred since 2006, including mass killings and the adoption of new tactics such as car bombings. The aim of this article is to place car bombings within a strategic logic. A total of 16 car bombs between July 15, 2010 and July 3, 2012 were examined, following the extant literature on strategies behind violence and terrorism. The authors affirm that the use of car bombings in México’s context followed various strategic pathways associated with the strength of the group and the government. These group characteristics were applied to both the cartels and the government followed by an example to illustrate support for the assertion.     

Invisible Labour: The Political Economy of Reintegration in South Sudan

This article considers the 2005–12 Disarmament, Demobilization and Reintegration (DDR) programme in South Sudan. Current DDR practice centres on ex-combatants' reintegration through encouraging entrepreneurship and self-employment and thereby their willingness to take risks and responsibility. However, South Sudan's DDR programme invisibilizes and obscures the ex-combatants' endogenous capacity to adapt and generate an income. Based on in-depth interviews with participants of the DDR programme and key stakeholders, the article argues that DDR interventions seldom capture the labour market experience of demobilized combatants. The article concludes that self-employment is the solution to the process of reintegration, empowerment and ultimately a key to statebuilding.     

Revisiting DDR in Liberia: exploring the power,agency and interests of local and international actors in the ‘making’ and ‘unmaking’ of combatants

The understanding that disarmament, demobilisation and reintegration (DDR) programmes are essential in helping to prevent war recurrence in post-conflict situations is at the heart of current international aid practice and the academic literature on peacekeeping and stabilisation. However DDR programmes are often launched on the basis of untested assumptions. This article considers the DDR programme in Liberia and analyses the complex relationship between the programmatic efforts to disarm and reintegrate combatants and the programme's actual effects. If we are to understand how DDR works as a tool of post-conflict governance, it is essential to explore the mechanisms of authority and power at stake. The focus is therefore not on whether combatants were successfully disarmed and reintegrated, but rather on exploring unfolding processes and the field of forces within which DDR programmes are implemented. It critically assesses the ideas of disarmament and reintegration and the basic assumptions behind current DDR policy through an analysis of the Liberian case, emphasising the agency and interests of local and international actors in the ‘making’ and ‘unmaking’ of combatants.     

A fast ultrasound-assisted extraction procedure for trace elements determination in hair samples by ICP-MS for forensic analysis

An ultrasound-assisted extraction method is proposed for the determination of trace elements in hair samples by inductively coupled plasma-mass spectrometry (ICP-MS) for forensic investigation. Prior to analysis, 25 mg of hair samples were accurately weighed into (15 mL) conical tubes. Then, 2 mL of 20% HNO₃ is added to the samples, sonicated at 2 min (50 W, 100% amplitude), and then further diluted to 10 mL with Milli-Q water. Resulted diluted slurries are centrifuged and the analytes are directly determined in the supernatant. Calibrations against aqueous solutions were carried out with rhodium as internal standard. The method was successfully applied for the extraction of Al, As, Ba, Be, Cd, Co, Cr, Cu, Mn, Pb, Tl, U, V and Zn with a method detection limit (3 s, n = 20) of 0.1, 0.4, 0.2, 0.09, 0.08, 0.04, 0.1, 2.9, 1.0, 0.9, 0.04, 0.05, 0.1 and 4.2 ng/g, respectively. Method accuracy is traceable to Certified Reference Materials (CRMs) 85 and 86 human hair from the International Atomic Energy Agency (IAEA). Additional validation data are provided based on the analysis of hair samples from the trace elements intercomparison program operated by the Institut National de Sante’ Publique du Quebec, Canada. The proposed method is very simple and can be applied for forensic purposes with the elimination of sample digestion step prior to analysis. Then, a considerable improvement in the sample throughput is archived with the use of the proposed method.