Voltammetric analysis of luminescent markers in gunshot residues

Currently, SEM-EDS is used to detect gunshot residue (GSR) from the presence of Ba, Pb, and Sb in the sample. However, the development of new nontoxic ammunition (NTA) has prevented conventional metals from being found. In this work, we aim to determine the presence of an inorganic luminescent chemical marker based on rare earth in gunshot residues using the technique of squarewave voltammetry (SWV). After firing, the luminescent complex [(Eu₂Zr)(btc)₃(Hbtc)_0.5.6H₂O], which is used as a chemical marker, can be detected under a UV lamp. An aqueous solution with 0.1 mol L⁻¹ KCl as supporting electrolyte can be easily collected on carbon paste electrode surfaces for SWV analysis A = 100 mV, f = 10 Hz, and step potential of 5 mV are required. The luminescent marker incorporated into the carbon paste electrode showed two anodic peak currents in the region of 0.4 V (vs Ag/AgCl) and at 0.75 V (vs Ag/AgCl) and also a cathodic one in 0.4 V (vs Ag/AgCl). SEM-EDS was able to analyze the same voltammetric results for conventional and nontoxic ammunition containing the luminescent marker. Therefore, voltammetry and SEM-EDS are valid for detecting the new residue marker in GSR. Despite this, the electrochemical method is still more advantageous because of its low cost and lack of expensive equipment and supplies in forensic laboratories.     

Notes on contributors

Robyn Eckersley: Environmentalism and Political Theory: Toward an Ecocentric Approach. Albany: State University of New York Press, 1992.

Arne Naess: Ecology, Community and Lifestyle. Translated and revised by David Rothenberg. Cambridge: Cambridge University Press, 1989.

M. Annette Jaimes, ed.: The State of Native America: Genocide, Colonization, and Resistance. Race and Resistance Series, Boston, South End Press, 1992.

Alexander Wilson: The Culture of Nature: North American Landscape from Disney to the Exxon Valdez. Cambridge, MA: Basil Blackwell, 1992.     

Investigating political marketing using mixed method: the case for campaign spending data

This article is a response to calls for new research methods in the study of political marketing. We submit that the mixed method approach to studying how political parties use opinion research and political communication is underused. More specifically we believe that campaign spending data, which are commonly analyzed in electoral studies, can become a significant source of information for the study of political marketing. We summarize the availability of electoral expenditure data in 13 established democracies before using a mixed method design to study political marketing management in Canada. We seek to validate quantitative data about marketing spending activity by administering semi‐structured interviews with practitioners who held senior campaign positions in major political parties. Our preliminary look at campaign finance through a political marketing scholarship lens reveals the strengths of drawing insights from such data but also some limitations. We conclude that, as other research has posited, Canadian political parties focus more on advertising in their approach to campaigning. More broadly, we propose that students of political marketing should balance proprietary interviews with transparent, standardized, replicable and objective sources of information such as campaign spending data, and vice‐versa. Copyright © 2013 John Wiley & Sons, Ltd.     

His,Hers, or Ours: Impacts of a Training and Asset Transfer Programme on Intra-Household Decision-Making in Zambia

This paper studies the effects of a multifaceted asset transfer programme on the decision-making dynamics of smallholder households. Constructing separate indexes of participation in household decision-making for adult females and males, and using difference-in-differences to assess the impact of livestock transfer and training, we find evidence that these interventions increased the share of decisions in which individuals participated, regardless of gender. Increases in decision-making participation by both men and women are driven by an increase in joint decision-making within the household on the extensive margin. Decisions made jointly by men and women increased by 16 per cent across all household activities, with statistically significant declines in independent decision-making by men and women. Findings are encouraging given the evidence of welfare gains associated both with increases in participation in decision-making by women as well as increased cooperation within households.     

A Tangled Web: Complexity and Inequality in the English Local Government Finance Settlement

The £29 billion formula grant stands at the heart of the English local government finance system. This transfer of resource from central to local government has, since 2006–07, been distributed using the so-called ‘four block model’. This extraordinarily complex formula-based funding mechanism aims to ensure that all local authorities are able to provide individuals with a broadly comparable level of public service – offering greatest support to local authorities with high service needs and/or low capacity to raise revenue. This paper outlines the structure and workings of the four block model and, drawing attention to key methodological shortcomings, explains why the resulting distribution of the formula grant is both arbitrary and inequitable. In particular it argues that key model parameters – specifically the need and resource equalisation proportions – are set in order to fulfil a particular funding outcome. This flies in the face of the basic tenets of resource allocation methodology in that, being outcome-led, the approach is clearly neither need-based nor impartial. The paper argues that the four block model fails to meet its own goal of fiscal equalisation, is likely to lead to increasing service disparities, and must be replaced as a matter of urgency.