Perils of Pluralism: Electoral Violence and Competitive Authoritarianism in Sub-Saharan Africa (SWP 23)

Why do some multi-party elections lead to political violence while others do not? Despite extensive literatures on democratization and civil war, electoral violence has received much less attention. We develop a set of theoretical propositions to explain variation, and we test these against an original dataset on Africa’s grand democratic experiment after the Cold War. Contra existing research, we find most violence takes place before the election and is committed by incumbents. We also demonstrate different causal dynamics of violence before and after election day. Pre-existing social conflict and the quality of founding elections shape pre-vote violence, while the stability of democratic institutions and weaker economic growth shape post-vote violence. When incumbents seek reelection, electoral violence is more likely, and when civil wars occur simultaneously with voting, electoral violence is less likely, before and after elections. We provide region-specific and global interpretations

The energy flux of internal gravity waves in the lower solar atmosphere

Stably stratified fluids, such as stellar and planetary atmospheres, can support and propagate gravity waves. On Earth these waves, which can transport energy and momentum over large distances and can trigger convection, contribute to the formation of our weather and global climate. Gravity waves also play a pivotal role in planetary sciences and modern stellar physics. They have also been proposed as an agent for the heating of stellar atmospheres and coronae, the exact mechanism behind which is one of the outstanding puzzles in solar and stellar physics. Using a combination of high-quality observations and 3D numerical simulations we have the first unambiguous detection of propagating gravity waves in the Sun's (and hence a stellar) atmosphere. Moreover, we are able to determine the height dependence of their energy flux and find that at the base of the Sun's chromosphere it is around 5 kW m−2. This amount of energy is comparable to the radiative losses of the entire chromosphere and points to internal gravity waves as a key mediator of energy into the solar atmosphere

Mycotoxin Detection in Human Samples from Patients Exposed to Environmental Molds

The goal of this study was to determine if selected mycotoxins (trichothecenes, aflatoxins, and ochratoxins) could be extracted and identified in human tissue and body fluids from patients exposed to toxin producing molds in their environment. Human urine and methanol extracted tissues and sputum were examined. Trichothecenes were tested using competitive ELISA techniques. Aflatoxins B1, B2, G1, and G2, and ochratoxin A were tested by using immunoaffinity columns and fluorometry. Test sensitivity and specificity were determined. Levels of detection for the various mycotoxins varied from 0.2 ppb for trichothecenes, 1.0 ppb for aflatoxins, and 2.0 ppb for ochratoxins. Trichothecene levels varied in urine, sputum, and tissue biopsies (lung, liver, brain) from undetectable (<0.2 ppb) to levels up to 18 ppb. Aflatoxin levels from the same types of tissues varied from 1.0 to 5.0 ppb. Ochratoxins isolated in the same type of tissues varied from 2.0 ppb to > 10.0 ppb. Negative control patients had no detectable mycotoxins in their tissues or fluids. These data show that mycotoxins can be detected in body fluids and human tissue from patients exposed to mycotoxin producing molds in the environment, and demonstrate which human tissues or fluids are the most likely to yield positive results

Female Undergraduate's Perceptions of Intrusive Behavior in 12 Countries

The present study examines young women’s (N = 1,734) perceptions of the unacceptability of 47 intrusive activities enacted by men. Female undergraduate psychology students from 12 countries (Armenia, Australia, England, Egypt, Finland, India, Indonesia, Italy, Japan, Portugal, Scotland, Trinidad) indicated which of 47 intrusive activities they considered to be unacceptable. Responses were compared with parasite-stress values, a measure of global gender equality and Hofstede’s dimensions of national cultures. There was no unanimous agreement on any of the items, even for those relating to forced sexual violence. Cluster analysis yielded four clusters: ‘Aggression and surveillance’ (most agreement that the constituent items were unacceptable), ‘Unwanted attention,’ ‘Persistent courtship and impositions,’ and ‘Courtship and information seeking’ (least agreement that the constituent items were unacceptable). There were no significant relationships between the ‘Aggression and surveillance’ or ‘Courtship and information seeking’ clusters and the measure of gender equality, Hofstede’s dimensions of national cultures or the measure of parasite stress. For the ‘Unwanted attention’ and ‘Persistent courtship and impositions’ clusters, women residing in countries with higher gender inequality and higher parasite-stress were less accepting of behavior associated with uncommitted sexual relations, and women in more individualistic societies with higher levels of gender equality were less accepting of monitoring activities. Culture may take precedence over personal interpretations of the unacceptability of intrusive behavior that is not obviously harmful or benign in nature

Correction to:Methods for identifying 30 chronic conditions: application to administrative data

Following publication of the original manuscript [1], the authors noted several errors in Table 1. Details of the requested corrections are shown below

Roles and competences for educators of undergraduate dental students: a discussion paper

Introduction Dental educators are important people who contribute to the development of every aspect of dental education. In part due to the lack of understanding of their roles and competences, dental educator development has so far received little consideration. With the aim of enhancing the dental profession's contribution to the development of undergraduate dental education, this article explores common roles of educators of undergraduate dental students and the competences needed to be effective educators. Methods This is a discussion paper based on a wide reading of the literature on the education of health professionals with a specific focus on roles and competences of educators. Results and discussion Roles of educators of undergraduate dental students typically encompass four areas: teaching, research, administration and providing healthcare. Educators may not be involved in every role; they normally perform the roles relevant to their work contexts. Competences for dental educators based on the four main roles comprise 12 domains: educational theories and principles; modes of education; learner issues; educational materials and instructional design; assessment and feedback; curriculum matters; evaluation; educational research; educational management; quality assurance; patient care and healthcare system and professionalism. Not all competences are required by all educators although educators need to be competent in the areas related to their roles and duties. Conclusion Understanding the roles and competences for educators of undergraduate dental students can help individual educators to improve their personal effectiveness and institutions to tailor staff development programmes appropriate to the needs of their staff. Faculty development contributes to sustained enhancement of undergraduate dental education

Recommendations for a core outcome set for measuring standing balance in adult populations: a consensus-based approach

Standing balance is imperative for mobility and avoiding falls. Use of an excessive number of standing balance measures has limited the synthesis of balance intervention data and hampered consistent clinical practice.To develop recommendations for a core outcome set (COS) of standing balance measures for research and practice among adults.A combination of scoping reviews, literature appraisal, anonymous voting and face-to-face meetings with fourteen invited experts from a range of disciplines with international recognition in balance measurement and falls prevention. Consensus was sought over three rounds using pre-established criteria.The scoping review identified 56 existing standing balance measures validated in adult populations with evidence of use in the past five years, and these were considered for inclusion in the COS.Fifteen measures were excluded after the first round of scoring and a further 36 after round two. Five measures were considered in round three. Two measures reached consensus for recommendation, and the expert panel recommended that at a minimum, either the Berg Balance Scale or Mini Balance Evaluation Systems Test be used when measuring standing balance in adult populations.Inclusion of two measures in the COS may increase the feasibility of potential uptake, but poses challenges for data synthesis. Adoption of the standing balance COS does not constitute a comprehensive balance assessment for any population, and users should include additional validated measures as appropriate.The absence of a gold standard for measuring standing balance has contributed to the proliferation of outcome measures. These recommendations represent an important first step towards greater standardization in the assessment and measurement of this critical skill and will inform clinical research and practice internationally