Numerical and Analytical Model of an Electrodynamic Dust Shield for Solar Panels on Mars

Masuda and collaborators at the University of Tokyo developed a method to confine and transport particles called the electric curtain in which a series of parallel electrodes connected to an AC source generates a traveling wave that acts as a contactless conveyor. The curtain electrodes can be excited by a single-phase or a multi-phase AC voltage. A multi-phase curtain produces a non-uniform traveling wave that provides controlled transport of those particles [1-6]. Multi-phase electric curtains from two to six phases have been developed and studied by several research groups [7-9]. We have developed an Electrodynamic Dust Shield prototype using threephase AC voltage electrodes to remove dust from surfaces. The purpose of the modeling work presented here is to research and to better understand the physics governing the electrodynamic shield, as well as to advance and to support the experimental dust shield research

Lethal Autonomous Weapon Systems: Translating Geek Speak for Lawyers

This article provides an overview of robotics and autonomous systems so that attorneys can better understand the systems and design principles of lethal autonomous weapon systems (LAWS) that may be used in an armed conflict. Using the lens of establishing a common language between engineers and attorneys, the article introduces the basics of robotics terminology, explores how autonomous systems work by explaining control systems and control architecture, and examines how autonomous systems learn and reason. It also suggests a number of questions attorneys should ask engineers during the design process in order to ensure autonomous systems are designed in a way that comply with the laws of armed conflict

Beating Again and Again and Again: Why Washington Needs a New Rule of Evidence Admitting Prior Acts of Domestic Violence

Batterers in Washington who use violence to control their intimate partners routinely avoid conviction and punishment due to the difficulties of prosecuting domestic violence cases. Prosecutors often face complex problems, such as recanting victims, lack of other witnesses, and juries inherently biased against battered women. Although some Washington prosecutors have found ways to introduce evidence of prior domestic violence in certain limited circumstances, Washington Rule of Evidence 404(b) generally precludes the use of evidence showing prior domestic violence. This Comment argues that this evidence rule prevents the admission of highly probative evidence of prior abuse against current or past victims that tends to show a defendant\u27s propensity to batter. This Comment proposes that the Supreme Court of Washington recognize the difficulty in proving domestic violence cases and adopt a new evidence rule that would admit prior acts of domestic violence for all relevant purposes—including propensity

Negotiating Social Change: Backstory Behind the Repeal of Don’t Ask, Don’t Tell

This Article is about negotiating social change in the largest U.S.institution, the Military and its five Services. Inducing social change in any institution and society is notoriously difficult when change requires overcoming clashing personal values among stakeholders. And, in this negotiation over the repeal of Don’t Ask, Don’t Tell (DADT), clashing values over open service by gays and lesbians were central to the conflict. In response to President Obama’s call to repeal DADT, the Secretary of Defense selected a Working Group to undertake studies, surveys and focus groups to inform the debate. During the nine-month process of gathering a massive amount of information, the Working Group did much more than inform. Its process cultivated buy-in by resistant Service members to the largest shift in social values in the military since racial integration in 1948. This study examines how the Pentagon’s Working Group process contributed to the change and prepared stakeholders for implementation in an Article jointly written by Brigadier General Letendre, Dean of the Faculty at U.S. Air Force Academy, who served as the legal advisor to the Co-Chair of the Working Group, and Professor Hal Abramson, an academic and practitioner in the field of dispute resolution who is an award-winning author. The authors use theoretical negotiation benchmarks to explain and examine choices made by the Working Group while assessing the process against the same benchmarks. While this Article is joint, it is enriched by short commentaries by each author, in which Brigadier General Letendre offers an insider’s view at key points while Professor Abramson offers his observations on key choices. Ultimately this Article is a case study of a complex multiparty process with lessons on negotiating social change

Negotiating Social Change: Backstory Behind the Repeal of Don\u27t Ask, Don\u27t Tell

This Article is about negotiating social change in the largest U.S. institution, the Military and its five Services. Inducing social change in any institution and society is notoriously difficult when change requires overcoming clashing personal values among stakeholders. And, in this negotiation over the repeal of Don’t Ask, Don’t Tell (DADT), clashing values over open service by gays and lesbians were central to the conflict. In response to President Obama’s call to repeal DADT, the Secretary of Defense selected a Working Group to undertake studies, surveys and focus groups to inform the debate. During the nine-month process of gathering a massive amount of information, the Working Group did much more than inform. Its process cultivated buy-in by resistant Service members to the largest shift in social values in the military since racial integration in 1948. This study examines how the Pentagon’s Working Group process contributed to the change and prepared stakeholders for implementation in an Article jointly written by Brigadier General Letendre, Dean of the Faculty at U.S. Air Force Academy, who served as the legal advisor to the Co-Chair of the Working Group, and Professor Hal Abramson, an academic and practitioner in the field of dispute resolution who is an award-winning author. The authors use theoretical negotiation benchmarks to explain and examine choices made by the Working Group while assessing the process against the same benchmarks. While this Article is joint, it is enriched by short commentaries by each author, in which Brigadier General Letendre offers an insider’s view at key points while Professor Abramson offers his observations on key choices. Ultimately this Article is a case study of a complex multiparty process with lessons on negotiating social change

Nietzsche or Aristotle: The implications for social psychology

YesIn this article, I argue that there is a divide in social psychology between a mainstream paradigm for investigating the flow of power in a largely competitive social life (such as social cognition, social identity theory, and discourse analysis) and a fringe paradigm for investigating the experience of flourishing in conditions of social learning (such as ‘the community of practice metaphor’, ‘dialogical theory’, ‘phenomenological analysis’). Assumptions of power and flourishing demand different conceptions of the self and the social world (e.g. a strategic subject or motivated tactician in a social group versus a reflective learner/artist in a community of practice). The first goal of this article is to reveal the assumptions that lead to this new classification. The second goal is to draw dotted lines to the blind-spots within these paradigms that each reveals. These blind spots are: 1) internal goods could be useful to consider for the power paradigm and external goods for the flourishing paradigm; 2) communicative rationality is underplayed within the power paradigm; while instrumental rationality is underplayed for the flourishing paradigm; 3) judgements and skill are underplayed in the power paradigm; self-interested motivations are underplayed in the flourishing paradigm

Translating and transforming care: people with brain injury and caregivers filling in a disability claim form

This article examines how the Disability Living Allowance claim form, used in the United Kingdom to allocate £13 billion of disability benefits, translates and transforms disability and care. Twenty-two people with acquired brain injury and their main informal caregivers (n = 44) were video-recorded filling in the disability claim form. Participants disagreed on 26% of the questions, revealing two types of problems. Translation problems arose as participants struggled to provide categorical responses to ambiguous questions and were unable to report contextual variability in care needs or divergences of perception. Transformation problems arose as participants resisted the way in which the form positioned them, forcing them to conceptualize their relationship in terms of dependency and burden. The disability claim form co-opts claimants to translate care and disability into bureaucratically predefined categories, and it transforms the care relationship that it purports to document

Reworking research: interactions in academic articles and blogs

The blog is an increasingly familiar newcomer to the panoply of academic genres, offering researchers the opportunity to disseminate their work to new and wider audiences of experts and interested lay people. This digital medium, however, also brings challenges to writers in the form of a relatively unpredictable readership and the potential for immediate, public and potentially hostile criticism. To understand how academics in the social sciences respond to this novel rhetorical situation, we explore how they discoursally recontextualise in blogs the scientific information they have recently published in journal articles. Based on two corpora of 30 blog posts and 30 journal articles with the same authors and topics, we examine the ways researchers carefully reconstruct a different writer persona and relationship with their readers using stance and engagement (Hyland, 2005). In addition to supporting the view that the academic blog is a hybrid genre situated between academic and journalistic writing, we show how writers’ rhetorical choices help define different rhetorical contexts

Mathematics teacher change in a collaborative environment: to what extent and how

This article reports on a study into how collaborative contexts influence the professional development of an early-career primary teacher, Julia. We describe the process of change by which Julia manages to make her planning to teach mathematics more flexible so as to adapt to student difficulties, and we analyse the role that joint reflection plays in promoting this change. In order to understand the how of this influence, we carried out an analysis of the interactions within the group from Julia’s point of view, following a dialogical approach to discourse. We believe that it is in and through the interactions that Julia constructs her interpretation of the opinions, critiques and suggestions expressed. This interpretation conditions the extent of her involvement and moulds the influence of the context on her professional development. The presence of skilled collaborators (Day, 1993) proved decisive in promoting this development