Post-abyssal ethics in education research in settings of conflict and crisis: Stories from the field

This article draws heavily on the post-abyssal philosophy of Boaventura de Sousa Santos in order to theorise new ways of thinking about research ethics in settings affected by armed conflict and crisis, and to put them into practice. Our article explores the dilemmas and tensions faced by four graduate students and a supervisor across diverse international settings. For some of us, these are places we call home, for others these are places that provide refuge to our people: Afghanistan, Jordan, Lebanon and India. We seek to deepen standard understandings of ethics as institutionalised in university forms, arguing that tidy checklists for safety and risk mitigation do not adequately address the complex affective and socio-political struggles permeating research, and the bodies of researchers, in these settings. Our main focus here is on how we can synthesise our various experiences in order to offer something of value to others who may be about to go into the field in settings affected by armed conflict and crisis. The question that we address, then, is: how can researchers avoid the limitations, obfuscations and silences of traditional institutional ethics in order to adopt a situated, embodied, post-abyssal research ethic that might open up new spaces for emotion, encounter, and engagement with struggle, risk and voicing? We use an autoethnographic approach that enables congruence with the aims of this article, and that supports our aspirations for enhanced impact through powerful narrative. We end with discussion that contains suggestions for institutions, supervisors, researchers, and for funding and professional bodies.     

Decentralized optimal controller design for multimachine power systems using successive approximation approach

In this paper, we propose to develop algorithmically and implement a nonlinear decentralized optimal control for multimachine power systems, based on a successive approximation approach for designing the optimal controller with respect to quadratic performance index. The advantage of this approach is to transform the high order coupling nonlinear two-point boundary value (TPBV) problem into a sequence of linear decoupling TPBV problem, which uniformly converges to the optimal control for nonlinear interconnected large scale systems. We apply this approach to a 3-machine power system which generators are strongly nonlinear interconnected, and containing possible uncertainties on the parameters. We demonstrate clearly via advanced simulations that this approach brings better performances than other decentralized controller, improving effectively transient stability of these power systems in few iterative sequences for different cases of perturbations.     

Teacher Professional Development and Student Literacy Growth: a Systematic Review and Meta-analysis

This systematic review explores the impact of teacher professional development (PD) on student reading achievement. The first part of the literature evaluates all available existing systematic reviews and meta-analyses of PD intervention studies. No quality reviews of PD and reading specifically (distinct from ‘attainment’) were found. There was a little overlap of studies in existing reviews. The second part of the systematic review focuses on the most recent intervention studies exploring PD and student reading achievement. The results of a meta-analysis of all high-quality studies are presented in the third part of the paper. This analysis showed no strong evidence of publication bias and an effect size for PD on student literacy of g = 0.225. This effect was moderated by the number of hours of PD whereby studies with fewer than 30 h of PD was significant for student reading outcomes (g = 0.367, p < 0.001) but more than 30 PD hours was not significant (g = 0.143, p > .05). Following a Weight of Evidence assessment, analysis showed that nearly all high-quality articles involved shorter PD. Weight of Evidence was a significant moderator, (g = 0.408, p < 0.001 for high-quality studies, g = 0.077, p > 0.5, n.s., for medium quality studies). Our review suggests that only high-quality studies of short teacher PD currently provide evidence of impact on student’s reading achievement.