Representation and misrepresentation: Tufte and the Morton Thiokol engineers on the Challenger

This paper examines the role of the Morton Thiokol engineers in the decisions surrounding the launch of the Challenger, particularly with reference to an analysis of this event by Edward Tufte. The engineers at Morton Thiokol recommended against the launch of Challenger because the projected launch temperature between 26°F to 29°F was far outside their field database of successful launches. The engineers had asked for, but not received, data necessary to determine the cause of massive blow-by on the launch the previous January, and they had informed their managers and NASA that continuing flights could be catastrophic if the cause of the problems with the launches was not discovered. The authors conclude that the engineers thus did what they were ethically as well as professionally obligated to do. This paper came about as a result of an experimental class called ‘The Challenger’ at the Rochester Institute of Technology (RIT) which drew faculty from four different disciplines, teaching about various aspects of the Challenger disaster. Wade Robison was one of those professors, and David Hoeker and Stefan Young were members of the class in their freshman year as engineering students. We all owe thanks to the other professors in the class—Dominique LePoutre (Language and Interpreting Education, National Technical Institute for the Deaf), Erhan Mergen (College of Business), and Rose Marie Toscano (Liberal Arts Support, National Technical Institute for the Deaf). We also need to thank Stan McKenzie, Provost at RIT, and Kit Mayberry, Associate Provost, for their conceiving of the program that supported the class and for their financial and moral support. The paper has been presented at three conferences and circulated widely. We want to thank those who forced us to rework the paper because of their cogent queries, especially Michael Pritchard, David Suits, Steve Warshaw, and an anonymous reviewer.     

The bilateral effect: callosal inhibition or intrahemispheric competition?

The magnification of visual field asymmetry observed with bilateral compared to unilateral tachistoscopic presentation of homologous stimuli (bilateral effect) can be explained by two hypothetical processes: homologous activation with subsequent inhibition of callosal information transfer or intrahemispheric competition for processing resources. A lexical decision task with unilateral and bilateral stimulation and response with the right or left hand was used in an attempt to decide between these hypotheses. Analysis of response time data revealed a bilateral effect, superimposed on a right visual field advantage, and no interaction between visual field and response hand. Results are consistent with the hypothesis of intrahemispheric competition in the left hemisphere.     

Opportunities of online analysis1

The question of whether tele-analysis is an acceptable way of conducting analysis has been discussed since it has become available. Merchant (2016) and others concluded that ‘the essentials of a genuine analytic process are not necessarily precluded’ (p. 1). In this paper, the author goes a step further and examines potential advantages of tele-analysis. There may be benefits for patients with a history of physical or sexual abuse who value the distance. The potential for a ‘safe place’ for work with erotic transference is also examined. In a further section the author is interested in allowing the analyst the freedom to practise in an authentic way, congruent with their personality. Also explored is the concept of the interactive field including the technological medium, which is subject to synchronistic events. Finally, the author gives examples of a deep connection between patient and analyst which came about despite the physical distance.     

THE ROLE OF SCIENCE IN PANNENBERG'S THEOGICAL THINKING

Abstract. Employing categories derived from the philosopher of science Imre Lakatos, this essay analyzes the theological thought of Wolfhart Pannenberg, with the aim of showing that he is engaged in a research program that takes seriously the various sciences and their understanding of the world on the one hand and the traditions of Christian faith and theology on the other. The course of the argument demonstrates that Pannenberg's thought extends comprehensively to provide a conceptuality that centers on the phenomena of contingency and field and encompasses nearly every realm of science and the breadth of biblical and theological traditions.     

Does the philosophy of medicine exist? A commentary on Caplan

Caplan has argued that the philosophy of medicine does not exist. Although I will not deny the points he makes, I will argue that the philosophy of medicine has characteristics of a developing field with the potential to meet all of Caplan's criteria. The argument is based on Dewey's established views on logical development for a field of inquiry, as well as pointing out how other criteria Caplan imposes can be fulfilled.The U.S. Government right to retain a non-exclusive, royalty free licence in and to any copyright is acknowledged.     

The Effects of Relaxation and Postural Training on External Perception: Improvement of Visual Acuity, Visual Field, and Hearing Acuity

This study examined the effects of muscular relaxation and postural training on external perception using a visual acuity test, a visual field test, and a hearing acuity test. Eighteen undergraduate students were randomly assigned to experimental and control groups. The experimental group underwent muscular relaxation and postural training. Each subject in this group was administered the tests before and after the training. Each subject in the control group carried out the tests before and after participating in a 30-min conversation with the experimenter. On all three tests, the experimental group improved significantly more than the control group.     

学生的认知风格与教师的教学策略之间关系的研究

本研究对２５５名初二学生认知风格测验与教师教学策略调查结果表明,初中学生存在着认知风格差异,属场依存性学生多于场独立性学生,认知风格与性别差异之间并不存在显著差异,表明初中学生在认知风格方面是总体上的平衡性与发展上的不平衡性的统一,教师的教学策略与教学方法对学生信知风梧的形成和发展具有一定的影响教学上应采取与初中学生认知风各相适应的教学方式,以促进学习能力的提高。     

Reduced visual acuity is mirrored in low vision imagery

Research has examined the nature of visual imagery in normally sighted and blind subjects, but not in those with low vision. Findings with normally sighted subjects suggest that imagery involves primary visual areas of the brain. Since the plasticity of visual cortex appears to be limited in adulthood, we might expect imagery of those with adult-onset low vision to be relatively unaffected by these losses. But if visual imagery is based on recent and current experience, we would expect images of those with low vision to share some properties of impaired visual perception. We examined key parameters of mental images reported by normally sighted subjects, compared to those with early- and late-onset low vision, and with a group of subjects with restricted visual fields using an imagery questionnaire. We found evidence that those with reduced visual acuity report the imagery distances of objects to be closer than those with normal acuity and also depict objects in imagery with lower resolution than those with normal visual acuity. We also found that all low vision groups, like the normally sighted, image objects at a substantially greater distance than when asked to place them at a distance that ‘just fits’ their imagery field (overflow distance). All low vision groups, like the normally sighted, showed evidence of a limited visual field for imagery, but our group with restricted visual fields did not differ from the other groups in this respect. We conclude that imagery of those with low vision is similar to that of those with normal vision in being dependent on the size of objects or features being imaged, but that it also reflects their reduced visual acuity. We found no evidence for a dependence on imagery of age of onset or number of years of vision impairment.     

A Closer Look at Eyespot Effects on Voter Turnout: Reply to Matland and Murray

Implicit social pressure, applied via exposure to eyespots in nonpartisan, direct‐mail blandishments to vote, has been shown using randomized field experiments to raise turnout in elections. Similar eyespot effects have been observed across a wide range of prosocial behaviors. A series of recent replications conducted by Matland and Murray (2015) have failed to consistently produce statistically significant eyespot effects on voter turnout, however, leading the authors to conclude the effects observed in previous research were likely illusory. In this article, I rebut this claim, arguing that an alternative, more circumspect interpretation of the authors’ key results points to a different conclusion that supports the notion that eyespots likely stimulate voting, especially when taken together with previous findings.