Small-scale social-environmental enterprises in the green economy: supporting grassroots innovation

To achieve a top-to-bottom growth of the “green economy”, incentives and enablers need to be identified for those micro enterprises working at the grassroots level. A three-year study of 1,300 social and environmental enterprises in developing countries reveals how they are developing new products and services for their communities, using new business models. But their scale-up is hampered by lack of access to research and technology support and gender barriers, as well as challenges with complex partnerships, progress monitoring, and financial viability. A large pool of innovative ideas remains untapped and an opportunity to build a sustainable economy is being missed.     

X‐ray Scattering Evaluation of Ultrastructural Changes in Human Dental Tissues with Thermal Treatment

Micro‐ and ultrastructural analysis of burned skeletal remains is crucial for obtaining a reliable estimation of cremation temperature. Earlier studies mainly focused on heat‐induced changes in bone tissue, while this study extends this research to human dental tissues using a novel quantitative analytical approach. Twelve tooth sections were burned at 400–900°C (30‐min exposure, increments of 100°C). Subsequent combined small‐ and wide‐angle X‐ray scattering (SAXS/WAXS) experiments were performed at the Diamond Light Source synchrotron facility, where 28 scattering patterns were collected within each tooth section. In comparison with the control sample, an increase in mean crystal thickness was found in burned dentine (2.8‐fold) and enamel (1.4‐fold), however at a smaller rate than reported earlier for bone tissue (5–10.7‐fold). The results provide a structural reference for traditional X‐ray scattering methods and emphasize the need to investigate bone and dental tissues separately to obtain a reliable estimation of cremation temperature.     

Lula's foreign policy and the quest for autonomy through diversification

The objective of this article is to analyse the changes brought about by the foreign policy of Lula's first administration (2003 – 06). To discuss the topic, we will make use of three notions: autonomy through distance, autonomy through participation and autonomy through diversification. These notions explain the main changes occurring in Brazilian foreign policy from 1980 to the mid-2000s. We will conclude by demonstrating how the autonomy through diversification notion best applies to the 2003 – 06 period.     

Electoral Confidence,Overconfidence, and Risky Behavior: Evidence from a Study with Elected Politicians

Political Behavior - Democratic theory makes strong assumptions about the relationship between politicians’ likelihood of retaining office and their behavior in office. Specifically,...     

Loyalty for sale? Military spending and coups d’etat

Coups d’etat continue to be common around the world, often leading to changes in leaders and institutions. We examine the relationship between military spending and coups and find that (i) successful coups increase military spending by more than failed attempts, and (ii) coups are more likely when military spending as a share of GDP is relatively low. Our identification strategy deals with the problem of reverse causality between coups and military spending by exploiting the conditional independence between a coup’s outcome and the change in military spending that follows it. We interpret our results as evidence that the military may stage coups in order to increase its funding, and rule out several alternative explanations.     

The Impact of Homeless Prevention on Residential Instability: Evidence From the Homelessness Prevention and Rapid Re-Housing Program

ABSTRACT

Millions of individuals and families in the United States do not have access to stable housing. Recent policies in the United States and the rest of the developed world emphasize programs intended to prevent homelessness through temporary financial assistance. This article explores the impact of the largest homelessness prevention program in U.S. history, the Homelessness Prevention and Rapid Re-housing Program (HPRP), on residential instability, using a national sample of families with children enrolled in school. The identification strategy exploits variations on the location of HPRP providers. Using data on the ratio of K–12 students experiencing homelessness in school districts, we find that HPRP is associated with reductions in the percentage of homeless students for districts closer to an HPRP provider. However, the impacts of HPRP fade out when program benefits end, bringing into question whether homeless prevention can help families achieve self-sufficiency in the long run.     

New optimized DNA extraction protocol for fingerprints deposited on a special self-adhesive security seal and other latent samples used for human identification

Abstract: Obtaining complete short tandem repeat (STR) profiles from fingerprints containing minimal amounts of DNA, using standard extraction techniques, can be difficult. The aim of this study was to evaluate a new kit, Fingerprint DNA Finder (FDF Kit), recently launched for the extraction of DNA and STR profiling from fingerprints placed on a special device known as Self‐Adhesive Security Seal Sticker^® and other latent fingerprints on forensic evidentiary material like metallic guns. The DNA extraction system is based on a reversal of the silica principle, and all the potential inhibiting substances are retained on the surface of a special adsorbent, while nucleic acids are not bound and remain in solution dramatically improving DNA recovery. DNA yield was quite variable among the samples tested, rendering in most of the cases (>90%) complete STR profiles, free of PCR inhibitors, and devoid of artifacts. Even samples with DNA amount below 100 pg could be successfully analyzed.     

Replacing and Amending Constitutions: The Logic of Constitutional Change in Latin America

Since 1978, all countries in Latin America have either replaced or amended their constitutions. What explains the choice between these two substantively different means of constitutional transformation? This article argues that constitutions are replaced when they fail to work as governance structures or when their design prevents competing political interests from accommodating to changing environments. According to this perspective, constitutions are likely to be replaced when constitutional crises are frequent, when political actors lack the capacity to implement changes by means of amendments or judicial interpretation, or when the constitutional regime has a power‐concentrating design. It is further argued that the frequency of amendments depends both on the length and detail of the constitution and on the interaction between the rigidity of the amendment procedure and the fragmentation of the party system. The article provides statistical evidence to support these arguments and discusses the normative implications of the analysis.     

“Give me some space”: exploring youth to parent aggression and violence

A small scale qualitative project, undertaken by an interdisciplinary domestic violence research group involving academic researchers and research assistants, with colleagues from Independent Domestic Abuse Services (IDAS), investigated youth aggression and violence against parents. Following the literature review, data was generated through several research conversations with young people (n = 2), through semi-structured interviews with mothers (n = 3) and practitioners (n = 5), and through a practitioner focus group (n = 8). Thematic analysis and triangulation of the data from parents, practitioners and young people, elicited interconnected and complex overarching themes. Young people could be both victim and perpetrator. The witnessing or experiencing of domestic aggression and violence raised the concept of ‘bystander children’. The impact of young people experiencing familial violence was underestimated by parents. For practitioners, the effects of working with domestic violence was shown to be significant - both positively and negatively.