Ophthalmologic Concerns in Abusive Head Trauma

When Abusive Head Trauma (AHT) is suspected in a child, a dilated eye examination by an ophthalmologist is an essential part of the medical workup, as the presence and pattern of retinal hemorrhages can have a high positive predictive rate for abusive head injury. This article proposes to review the clinical presentation, pathophysiology, natural history, sequelae, and differential diagnosis of retinal hemorrhages and other ocular lesions associated with AHT.     

Racial and ethnic differences in the consequences of school suspension for arrest

A growing body of literature has demonstrated that when schools suspend students, the suspension acts not as a deterrent but as an amplifier of future punishment. Labeling theory has emerged as the predominant explanation for this phenomenon, suggesting that the symbolic label conferred along with a suspension shapes how other people perceive and respond to labeled students. Few studies, however, have attended to racial/ethnic differences in this process even though critical race theory suggests the consequences of suspension likely differ across racial/ethnic groups due to prevailing racial/ethnic stereotypes. This study uses six waves of data from the National Longitudinal Study of Youth 1997 (N = 8,634) to examine how the relationship between suspension and subsequent arrest differs for White, Black, and Hispanic students. Using a series of within-person analyses that control for time-stable personal characteristics, this study finds that suspension amplifies Black and Hispanic students’ risk of arrest relative to that of White students. White students’ risk of arrest was not amplified by suspension and, in some models, was diminished. This study's findings underscore the importance of understanding the labeling process as different by race/ethnicity and indicate that suspension is particularly harmful for Black and Hispanic relative to White students.     

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.     

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.