Bridging risk and enactment: the role of psychology in leading psychosocial research to augment the public health approach to violence in South Africa

In the wake of apartheid, many in the South African health and social sciences shifted their orientation to understanding violence. Rather than approaching violence as a criminal problem, post-apartheid scholarship surfaced violence as a threat to national health. This re-orientation was well aligned with a global groundswell that culminated in the World Health Assembly’s 1996 declaration of violence as a public health problem. In response, researchers and other stakeholders have committed to the public health approach to violence in South Africa. Despite some unquestionable successes in applying this approach, violence remains a critical social issue and its recalcitrantly high rates signal that there is still much work to be done. One avenue for more focussed research concerns understanding the mechanisms by which upstream risk factors for violence are translated into actual enactments. We argue that South African psychology is well placed to provide greater resolution to this focus. We begin by providing a brief overview of the public health approach to violence. We then point to three specific areas in which the limits to our understanding of the way that downstream psychological and upstream social risk factors converge in situations of violence, compromise the theoretical and prevention traction promised by this approach and chart several basic psychosocial research coordinates for South African psychology. Steering future studies of violence by these coordinates would go some way to addressing these limits and, in so doing, extend on the substantial gains already yielded by the public health approach to violence in South Africa.BB201

Characterisation of the E. coli and Salmonella qseC and qseE mutants reveals a metabolic rather than adrenergic receptor role

Catecholamine stress hormones (norepinephrine, epinephrine, and dopamine) are signals that have been shown to be used as environmental cues, which affect the growth and virulence of normal microbiota as well as pathogenic bacteria. It has been reported that Escherichia coli and Salmonella use the two-component system proteins QseC and QseE to recognise catecholamines and so act as bacterial adrenergic receptors. In this study, we mutated the E. coli O157:H7 and Salmonella enterica serovar Typhimurium genes encoding QseC and QseE and found that this did not block stress hormone responsiveness in either species. Motility, biofilm formation, and analysis of virulence of the mutants using two infection models were similar to the wild-type strains. The main differences in phenotypes of the qseC and qseE mutants were responses to changes in temperature and growth in different media particularly with respect to salt, carbon, and nitrogen salt sources. In this physiological respect, it was also found that the phenotypes of the qseC and qseE mutants differed between E. coli and Salmonella. These findings collectively suggest that QseC and QseE are not essential for E. coli and Salmonella to respond to stress hormones and that the proteins may be playing a role in regulating metabolism

'My expectations remain the same. The student has to be competent to practise' : practice assessor perspectives on the new social work degree qualification in England

Research has emphasized the importance of practice learning to social work qualifying education but has tended to feature social work educator and student perspectives more strongly than the views of those responsible for assessing students' practice in the field. This article draws on 195 responses to a postal questionnaire sent at two points in time to practice assessors working with students from nine social work qualifying programmes run in six higher education institutions collected as part of the evaluation of the new social work degree qualification in England. While practice assessors described changes in their role and in the opportunities available to students, they also emphasized continuities, particularly in the skills that they expected students to possess. The key difficulty they identified was the heavy workload resulting from combining their role as practice assessors with their other responsibilities at work. Increases in the number of social work students and changes to the organization of services are likely to create further pressures on practice assessors. Given that these issues are faced by a number of different professions, the article concludes that there is potential for future studies to look at the experiences of practice educators across different professional qualifying programmes

The second wave of violence scholarship: South African synergies with a global research agenda

Violence is a serious public health and human rights challenge with global psychosocial impacts across the human lifespan. As a recently classified middle-income country (MIC), South Africa experiences high levels of interpersonal, self-directed and collective violence, taking physical, sexual and/or psychological forms. Careful epidemiological research has consistently shown that complex causal pathways bind the social fabric of structural inequality, socio-cultural tolerance of violence, militarized masculinity, disrupted community and family life, and erosion of social capital, to individual-level biological, developmental and personality-related risk factors to produce this polymorphic profile of violence in the country. Engaging with a concern that violence studies may have reached something of a theoretical impasse, ‘second wave’ violence scholars have argued that the future of violence research may not lie primarily in merely amassing more data on risk but rather in better theorizing the mechanisms that translate risk into enactment, and that mobilize individual and collective aspects of subjectivity within these enactments. With reference to several illustrative forms of violence in South Africa, in this article we suggest revisiting two conceptual orientations to violence, arguing that this may be useful in developing thinking in line with this new global agenda. Firstly, the definition of our object of enquiry requires revisiting to fully capture its complexity. Secondly, we advocate for the utility of specific incident analyses/case studies of violent encounters to explore the mechanisms of translation and mobilization of multiple interactive factors in enactments of violence. We argue that addressing some of the moral and methodological challenges highlighted in revisiting these orientations requires integrating critical social science theory with insights derived from epidemiology and, that combining these approaches may take us further in understanding and addressing the recalcitrant range of forms and manifestations of violence.BB201

Seasonal extrema of sea surface temperature in CMIP6 models

CMIP6 model sea surface temperature (SST) seasonal extrema averaged over 1981–2010 are assessed against the World Ocean Atlas (WOA18) observational climatology. We propose a mask to identify and exclude regions of large differences between three commonly used climatologies (WOA18, WOCE-Argo Global Hydrographic climatology (WAGHC) and the Hadley Centre Sea Ice and Sea Surface Temperature data set (HadISST)). The biases in SST seasonal extrema are largely consistent with the annual mean SST biases. However, the amplitude and spatial pattern of SST bias vary seasonally in the 20 CMIP6 models assessed. Large seasonal variations in the SST bias occur in eastern boundary upwelling regions, polar regions, the North Pacific and the eastern equatorial Atlantic. These results demonstrate the importance of evaluating model performance not simply against annual mean properties. Models with greater vertical resolution in their ocean component typically demonstrate better representation of SST extrema, particularly seasonal maximum SST. No significant relationship of SST seasonal extrema with horizontal ocean model resolution is found

Identification of Salmonella enterica Serovar Dublin-Specific Sequences by Subtractive Hybridization and Analysis of Their Role in Intestinal Colonization and Systemic Translocation in Cattle

Salmonella enterica serovar Dublin is a host-restricted serovar associated with typhoidal disease in cattle. In contrast, the fowl-associated serovar S. enterica serovar Gallinarum is avirulent in calves, yet it invades ileal mucosa and induces enteritis at levels comparable to those induced by S. enterica serovar Dublin. Suppression subtractive hybridization was employed to identify S. enterica serovar Dublin strain SD3246 genes absent from S. enterica serovar Gallinarum strain SG9. Forty-one S. enterica serovar Dublin fragments were cloned and sequenced. Among these, 24 mobile-element-associated genes were identified, and 12 clones exhibited similarity with sequences of known or predicted function in other serovars. Three S. enterica serovar Dublin-specific regions were homologous to regions from the genome of Enterobacter sp. strain 638. Sequencing of fragments adjacent to these three sequences revealed the presence of a 21-kb genomic island, designated S. enterica serovar Dublin island 1 (SDI-1). PCR analysis and Southern blotting showed that SDI-1 is highly conserved within S. enterica serovar Dublin isolates but rarely found in other serovars. To probe the role of genes identified by subtractive hybridization in vivo, 24 signature-tagged S. enterica serovar Dublin SD3246 mutants lacking loci not present in Salmonella serovar Gallinarum SG9 were created and screened by oral challenge of cattle. Though attenuation of tagged SG9 and SD3246 Salmonella pathogenicity island-1 (SPI-1) and SPI-2 mutant strains was detected, no obvious defects of these 24 mutants were detected. Subsequently, a DeltaSDI-1 mutant was found to exhibit weak but significant attenuation compared with the parent strain in coinfection of calves. SDI-1 mutation did not impair invasion, intramacrophage survival, or virulence in mice, implying that SDI-1 does not influence fitness per se and may act in a host-specific manner

CIÊNCIA CIDADÃ EXTREMA: UMA NOVA ABORDAGEM

A conservação da biodiversidade é uma questão que tem preocupado o mundo todo. Nas últimas décadas, centenas de áreas protegidas foram criadas para assegurar a preservação da biodiversidade no planeta. Um grande número de áreas protegidas é habitado por comunidades que dependem do uso de seus recursos naturais não apenas para a sua sobrevivência, mas também para a sua reprodução social e cultural. Em muitos casos, as populações locais têm sido diretamente responsáveis pela gestão sustentável desses complexos ecossistemas por séculos. Iniciativas de Ciência Cidadã – entendida como a participação de amadores, voluntários e entusiastas em projetos científicos – têm envolvido o público na produção científica e em projetos de monitoramento da biodiversidade, mas têm limitado essa participação à coleta de dados, e têm normalmente ocorrido em locais afluentes, excluindo as populações não alfabetizadas ou letradas e que vivem em áreas remotas. Povos e comunidades tradicionais conhecem os aspectos ambientais das áreas por eles habitadas, o que pode ser benéfico para a gestão e o monitoramento bem-sucedidos da biodiversidade. Portanto, ao se tratar do monitoramento e da proteção da biodiversidade em áreas habitadas por populações humanas, o seu envolvimento é central e pode conduzir a um cenário onde todas as partes envolvidas se beneficiam. Extreme Citizen Science (ExCiteS) é um grupo de pesquisa interdisciplinar criado em 2011, na University College London, com a finalidade de avançar o atual conjunto de práticas da Ciência Cidadã. A ideia é permitir que qualquer comunidade, em qualquer lugar do mundo – desde grupos marginalizados que vivem nas periferias de áreas urbanas até grupos de caçadores e coletores da floresta amazônica –, comece um projeto de Ciência Cidadã para lidar com suas próprias questões. Este artigo apresenta os diversos aspectos que tornam a Ciência Cidadã “extrema” no trabalho do grupo ExCiteS, por meio da exposição de suas teorias, métodos e ferramentas, e dos estudos de caso atuais que envolvem comunidades tradicionais ao redor do mundo. Por fim, ressalta-se a maior preocupação do grupo, que é tornar a participação verdadeiramente efetiva, e sugere-se como iniciativas de monitoramento da biodiversidade podem ser realizadas de maneira colaborativa, trazendo benefícios a todos os atores envolvidos