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.     

From Bandung to Brasilia: IBSA and the political lineage of South–South cooperation

This article aims to trace South–South cooperation political lineages connecting the Non-Aligned Movement and the IBSA (India, Brazil, South Africa) Forum. In order to determine whether IBSA could be considered the ‘heir’ to Bandung's principles, we analyse the concepts of ‘Third World’ and ‘Global South’ as well as their current applicability, the interpretations provided by existing literature on the IBSA grouping, and its member countries' shared views on different issues of the international agenda. The article also considers the historical evolution of ‘Southern’ diplomatic thought and actions. IBSA's actions and history, as well as its members, are studied to grasp how they are related to the Third World movement in the Cold War.     

European diplomatic practices: contemporary challenges and innovative approaches

Abstract

As the aim of this special issue is to show practice approaches at work in the case of European diplomacy, this introduction provides readers with a hands-on sense of where the conversation about practices and European diplomacy currently stands. By introducing the key terms and overviewing the literature, the article contextualises the guiding questions of the special issue. It starts by reviewing how practice approaches have evolved in IR debates. It then describes European diplomacy’s nuts and bolts in a post-Lisbon setting. It continues by focusing on specific practices and analytical mechanisms that contribute to understand European diplomacy’s transformations and the role of security. While the debate about practices goes beyond the case of diplomacy, the latter has become a showcase for the former and this special issue continues the debate on practices and diplomacy by zooming in on the European Union.     

Security in the Interparental Subsystem (SIS) Scale: Psychometric Characteristics in a Sample of Portuguese Adolescents

The Security in the Interparental Subsystem Scale (SIS) is based on emotional security theory. This study examined the psychometric properties of an adaptation of the SIS to a sample of Portuguese adolescents (60.3 % girls; 10 to 18 years old; Mage?=?13 years; N?=?229), recruited in public schools. Discriminant and concurrent validity were assessed by analyzing SIS dimensions associations with adolescents’ exposure to interparental conflict (IC), and psychological adjustment, respectively. Exploratory and confirmatory factor analyses of the SIS supported a six-factor solution, with satisfactory internal consistency. Evidence for discriminant and concurrent validity was provided: most SIS dimensions significantly discriminated between adolescents exposed to higher vs. lower levels of IC; and a significant positive association between emotional reactivity and adolescents’ externalizing symptoms was found. These findings suggest that the SIS is a reliable tool for assessing adolescents’ emotional insecurity in the interparental relationship within the context of this sample.     

Paving the (Hard) Way for Regional Partnerships: Evidence from Portugal

A fundamental dilemma which troubles advocates of interinstitutional partnerships in regional development pertains to the extent to which partnerships enhance the effectiveness of governance processes and outcomes. This dilemma is particularly relevant in contexts that lack strong cohesive regional development alliances, such as the Portuguese case. This article aims to shed light on the debate regarding the role of partnerships in regional development, drawing on a unique collaborative interinstitutional partnership. It explores the responses to complexity across the different stakeholders, as well as its effects at the formulation and implementation stages of the strategic plans devised to apply for EU funding. Findings suggest that interinstitutional partnerships induce significantly different allocative choices at the agenda-setting. However, the established partnership was unable to cope with the several obstacles that emerged during the implementation, suggesting several vulnerabilities of partnerships, which are explored. Findings suggest the need to reinforce governance mechanisms during the implementation stage.     

Organizational Justice Across Cultures: A Systematic Review of Four Decades of Research and Some Directions for the Future

This review aims to provide an overview of the main frameworks and findings of cross-cultural organizational justice research and some directions for future research. We systematically reviewed the literature and analysed 74 papers, which include more than one country, from the justice receiver perspective. We contribute to the literature in two ways. First, our analysis of methodological aspects highlights some limitations: most studies compare two countries, mainly China and the USA; cross-cultural equivalence checks are rare; and most studies do not directly measure culture, rather tend to use collectivism and power distance as post hoc explanations of country differences. Second, we offer a broad view of country differences by investigating contextual effects that go beyond national values. Our analysis of the influence of sociocultural influence levels shows that culture, socioeconomic development, organizational, situational, and individual characteristics interact to predict the development of and reactions to (in)justice across countries. A greater integration of levels is important for the advancement of research. Across cultures, more positive justice perceptions are related to positive outcomes, but are achieved differently, so organizations should be aware of sociocultural influences on employees’ perceptions of justice.     

Las funciones de los consejeros independientes de las sociedades en México: Recomendaciones para el cambio a partir de las asimetrías existentes entre la práctica y la ley

The legal notion of an independent board member was introduced to the Mexican legislation in 2005. The goal was to improve the corporate governance of the corporations listed on the stock exchange. It was thought that including the independent board members would help to better represent the interest of the minority holders, as well as to increase the level of accountability. This article challenges these ideas based on 10 interviews carried out with independent board members. It finds that what the law says is far from what actuatly occurs: they lack of an adequate level of knowledge to perform their tasks, their degree of independence is severely limited by the criteria used to appoint them and they usually ignore essential corporate information, which impede them from participating effectively in the board sessions. The article suggests the creation of an independent board member’s association, a mechanism that, along with a mandatory certification system, would improve the way in which they perform their duties.