Purpose Prescription stimulant use as “cognitive enhancers” has been described among undergraduate college students. However, the use of prescription stimulants among future health care professionals is not well characterized. This study was designed to determine the prevalence of prescription stimulant misuse among students at an academic health sciences center. -/- Method Electronic surveys were e-mailed to 621 medical, pharmacy, and respiratory therapy students at East Tennessee State University for four consecutive weeks in fall 2011. Completing the survey was voluntary and (...) anonymous. Surveys asked about reasons for, frequency of, and side effects of nonprescription misuse of prescription stimulants. Given the sensitive material, an opportunity to win one of ten $50 gift cards was used as an incentive. -/- Results Three hundred seventy-two (59.9%) students completed the survey from three disciplines (47.6% medical, 70.5% pharmacy, and 57.6% respiratory therapy). Overall, 11.3% of responders admitted to misusing prescription stimulants. There was more misuse by respiratory therapy students, although this was not statistically significant (10.9% medicine, 9.7% pharmacy, 26.3% respiratory therapy; P = .087). Reasons for prescription stimulant misuse included to enhance alertness/ energy (65.9%), to improve academic performance (56.7%), to experiment (18.2%), and to use recreationally/get high (4.5%). -/- Conclusions Prescription stimulant misuse was prevalent among participating students, but further research is needed to describe prevalence among future health care workers more generally. The implications and consequences of such misuse require further study across professions with emphasis on investigating issues of academic dishonesty (e.g., “cognitive enhancement”), educational quality, and patient safety or health care quality. (shrink)

This is a section of Mr. Gray's recent paper read before The Philosophers' Academy covering "The Catholic Movement in France and the Philosophy of de Lamennais".Complete ignorance of the system of the Medieval Schoolmen seems responsible for the contempt in which he held Scholasticism, and indirectly for the vagaries of his own philosophy, and the ultimate shipwreck of his faith.

BackgroundThe ARRIVE (Animal Research: Reporting of In Vivo Experiments) guidelines are widely endorsed but compliance is limited. We sought to determine whether journal-requested completion of an ARRIVE checklist improves full compliance with the guidelines.MethodsIn a randomised controlled trial, manuscripts reporting in vivo animal research submitted to PLOS ONE (March–June 2015) were randomly allocated to either requested completion of an ARRIVE checklist or current standard practice. Authors, academic editors, and peer reviewers were blinded to group allocation. Trained reviewers performed outcome adjudication (...) in duplicate by assessing manuscripts against an operationalised version of the ARRIVE guidelines that consists 108 items. Our primary outcome was the between-group differences in the proportion of manuscripts meeting all ARRIVE guideline checklist subitems.ResultsWe randomised 1689 manuscripts (control: n = 844, intervention: n = 845), of which 1269 were sent for peer review and 762 (control: n = 340; intervention: n = 332) accepted for publication. No manuscript in either group achieved full compliance with the ARRIVE checklist. Details of animal husbandry (ARRIVE subitem 9b) was the only subitem to show improvements in reporting, with the proportion of compliant manuscripts rising from 52.1 to 74.1% (X2 = 34.0, df = 1, p = 2.1 × 10−7) in the control and intervention groups, respectively.ConclusionsThese results suggest that altering the editorial process to include requests for a completed ARRIVE checklist is not enough to improve compliance with the ARRIVE guidelines. Other approaches, such as more stringent editorial policies or a targeted approach on key quality items, may promote improvements in reporting. (shrink)

Lang, B. Philosophy and the manners of art.--Hofstadter, A. Freedom, enownment, and philosophy.--Mehta, J. L. A stranger from Asia.--Fox, D. A. A passage past India.--Rucker, D. Philosophy and the constitution of Emerson's world.--Schneider, H. W. The pragmatic movement in historical perspective.--Barnes, H. E. Reflections on myth and magic.--Cauvel, J. The imperious presence of theater.--Seay, A. Musical conservatism in the fourteenth century.--Hochman, W. R. The enduring fascination of war.--Davenport, M. M. J. Glenn Gray and the promise of wisdom.

We propose a framework for analyzing the development, operation and failure to survive of all things, living, non-living or organized groupings. This framework is a sequence of developments that improve survival capability. Framework processes range from origination of any entity/system, to the development of increased survival capability and development of life-forms and organizations that use intelligence. This work deals with a series of developmental changes that arise from the uncovering of emergent properties. The framework is intended to be general, but (...) we see a potential to apply it to scientific topics such as the exploration of the origin of life or the search for life beyond Earth, and to understand some biological issues in evolution and symbiosis, and also to apply to social systems that do not seem to be operating well, to determine their problems and correct them. (shrink)

We use the Newell Test as a basis for evaluating ACT-R as an effective architecture for cognitive engineering. Of the 12 functional criteria discussed by Anderson & Lebiere (A&L), we discuss the strengths and weaknesses of ACT-R on the six that we postulate are the most relevant to cognitive engineering.

Psychopathy is associated with a deficit in affective processes and might be reflected in the inability to extract the emotional content of a stimulus. Across two experiments, we measured the interference effect from emotional images that were irrelevant to the processing of simultaneous target stimuli and examined if this interference was moderated by psychometrically defined traits of psychopathy. In Experiment 1, we showed this emotional distraction effect was reduced as a function of psychopathic traits related to cold-heartedness and occurred for (...) both positively- and negatively-valenced images. Experiment 2 attempted to test the automaticity of the effects by presenting the emotional stimuli briefly so that the emotion was difficult to report. Again, high visibility images produced strong effects that were moderated by the cold-heatedness/meanness traits of psychopathy, but the low-visibility images did not evoke the emotional distractor effect. Our results strongly support the notion that psychopathic traits related to cold-heartedness/meanness are associated with an inability to automatically process the emotional content of images. (shrink)

Reinforcement learning (RL) models of decision-making cannot account for human decisions in the absence of prior reward or punishment. We propose a mechanism for choosing among available options based on goal-option association strengths, where association strengths between objects represent previously experienced object proximity. The proposed mechanism, Goal-Proximity Decision-making (GPD), is implemented within the ACT-R cognitive framework. GPD is found to be more efficient than RL in three maze-navigation simulations. GPD advantages over RL seem to grow as task difficulty is increased. (...) An experiment is presented where participants are asked to make choices in the absence of prior reward. GPD captures human performance in this experiment better than RL. (shrink)

Written by leading experts in the field, Stellar Spectral Classification is the only book to comprehensively discuss both the foundations and most up-to-date techniques of MK and other spectral classification systems. Definitive and encyclopedic, the book introduces the astrophysics of spectroscopy, reviews the entire field of stellar astronomy, and shows how the well-tested methods of spectral classification are a powerful discovery tool for graduate students and researchers working in astronomy and astrophysics. The book begins with a historical survey, followed by (...) chapters discussing the entire range of stellar phenomena, from brown dwarfs to supernovae. The authors account for advances in the field, including the addition of the L and T dwarf classes; the revision of the carbon star, Wolf-Rayet, and white dwarf classification schemes; and the application of neural nets to spectral classification. Copious figures illustrate the morphology of stellar spectra, and the book incorporates recent discoveries from earth-based and satellite data. Many examples of spectra are given in the red, ultraviolet, and infrared regions, as well as in the traditional blue-violet optical region, all of which are useful for researchers identifying stellar and galactic spectra. This essential reference includes a glossary, handy appendixes and tables, an index, and a Web-based resource of spectra. In addition to the authors, the contributors are Adam J. Burgasser, Margaret M. Hanson, J. Davy Kirkpatrick, and Nolan R. Walborn. (shrink)

Television medical dramas sometimes depict medical professionalism and bioethical issues, but their nature and extent are unclear. The authors systematically analysed the bioethical and professionalism content of one season each of Grey's Anatomy and House M.D., two of the most popular current television medical dramas. The results indicate that these programmes are rife with powerful portrayals of bioethical issues and egregious deviations from the norms of professionalism and contain exemplary depictions of professionalism to a much lesser degree.

Introduction by the Rev. R. J. Fletcher -- The memory of Francis Bacon. A speech delivered in Gray's Inn hall at the tercentenary celebration by Mr. H. E. Duke -- List of benchers and guests present at the tercentenary celebration, 1908 -- Francis Bacon. A speech delivered by the Right Hon. A. J. Balfour, M. P., on the occasion of the unveiling of the Bacon statue at Gray's Inn [27th June 1912] -- Francis Bacon's essays: Of gardens and (...) Of masques and triumphs, reprinted from the earliest editions. (shrink)

This volume is the product of an important recent conference, convened by His Holiness the Dalai Lama, focusing on the intellectual legacy of the Tibetan philosopher, yogi, and saint Tsongkhapa (1357-1419). Entitled "Jé Tsongkhapa: Life, Thought, and Legacy," the conference commemorated the sixth hundredth anniversary of Tsongkhapa's passing and was held on December 21-23, 2019, at Ganden Monastery in Mundgod, India. Part 1 concerns Madhyamaka, a natural reflection of the very important and well-known contributions Tsongkhapa made to the study of (...) Indian philosophical thought. The first essay, Guy Newland's "Start Making Sense: Finding Tsongkhapa's Middle Way," provides a straightforward and clear introduction to Tsongkhapa's interpretation of Madhyamaka philosophy, showing how Tsongkhapa played an essential role in clarifying Candrakīrti's contributions to Madhyamaka thought. The second essay, "Celebrating Jé Tsongkhapa: The Twofold Object of the Identity View" by Dr. Dechen Rochard explores Tsongkhapa's understanding of Candrakīrti's negation of individual identity. The essay neatly demonstrates the centrality of the practitioner's view of self to the path to spiritual awakening. In the third chapter, "Thinking Beyond Thought: Tsongkhapa and Mipham on the Conceptualized Ultimate," Jay L. Garfield explores Tsongkhapa's views on the nature of ultimate reality, specifically Tsongkhapa's argument that this entails a movement from inferential to direct awareness of emptiness. The essay explores the need for accurate philosophical analysis in the context of meditation practice so as to directly realize the truths about the nature of self and reality that are the objects of the practice. It thus nicely points to the integration of Buddhist theory and practice. The second section of this volume is dedicated to Tsongkhapa's writings on the tantras. In the first chapter in this section, "Tsongkhapa's Masterful Exegesis of Cakrasaṃvara Tantra," I elucidate Tsongkhapa's approach to the study of tantric literature with a focus on his commentary on the Cakrasaṃvara Tantra. Chapter 6 is Gavin Kilty's contribution, "A Lamp to Illuminate the Five Stages: Tsongkhapa's Reformatory Work on Guhyasamāja Tantra." Kilty first surveys the Guhyasamāja tradition and its transmission to Tibet and the two main Indian exegetical traditions, the Ārya and J.ānapāda schools. Outlining Tsongkhapa's approach to the Guhyasamāja Tantra, he then focuses on how the tradition conceptualizes the generation-stage and completion-stage practices. Chapter 7, "The Shadow of Heshang: Tsongkhapa on Chan, Dzokchen, and Mahāmudrā" by Roger R. Jackson. Jackson explores the claim that Tsongkhapa received and secretly transmitted esoteric instructions on advanced meditation practices to realize the nature of mind and awakening. The volume concludes with a section entitled "Moving Minds," which explores Tsongkhapa's legacy and impact both in Tibet and beyond. It opens with "Jé Tsongkhapa's Contribution to Buddhist Hermeneutics" by Geshé Ngawang Samten. Buddhist hermeneutics, as understood here, is a response to the challenge posed by scriptures that appear to contradict one another. Chapter 9, "Tsongkhapa's Hermeneutics and the Perfection of Wisdom," contributed by Gareth Sparham, takes a more focused look at the interpretation of the Perfection of Wisdom literature in both India and Tibet. The tenth chapter is "Jé Tsongkhapa's Teachings and Translations in Mongolian" by Bataa Mishig-Ish, who surveys the dissemination of Tsongkhapa's oeuvre to Mongolia. The final chapter is BhikṣuṇīThubten Chodron's "Learning, Living, and Teaching Bodhicitta: Jé Tsongkhapa's Contribution to Spreading Compassion in the World." Venerable Chodron argues that Tsongkhapa's approach to teaching compassion is particularly suited for the modern, Western context. While this volume does not come close to exhausting the limits of what might be said concerning the impact of Tsongkhapa's work in Tibet and beyond, it does reunite contributions to this study that briefly converged in Preface xi Mundgod, India, just before the global pandemic ushered in a new awareness of our profound human interdependence. Hopefully these essays will advance the appreciation of Tsongkhapa's intellectual legacy in the wider English-speaking world, where he remains a little understood figure of Asian religious history, unlike in the Tibetan-speaking world, where his impact is justly celebrated. (shrink)

A high percent of oxidative energy metabolism is needed to support brain growth during infancy. Unhealthy diets and limited nutrition, as well as other environmental insults, can compromise these essential developmental processes. In particular, iron deficiency anemia has been found to undermine both normal brain growth and neurobehavioral development. Even moderate ID may affect neural maturation because when iron is limited, it is prioritized first to red blood cells over the brain. A primate model was used to investigate the neural (...) effects of a transient ID and if deficits would persist after iron treatment. The large size and postnatal growth of the monkey brain makes the findings relevant to the metabolic and iron needs of human infants, and initiating treatment upon diagnosis of anemia reflects clinical practice. Specifically, this analysis determined whether brain maturation would still be compromised at 1 year of age if an anemic infant was treated promptly once diagnosed. The hematology and iron status of 41 infant rhesus monkeys was screened at 2-month intervals. Fifteen became ID; 12 met clinical criteria for anemia and were administered iron dextran and B vitamins for 1–2 months. MRI scans were acquired at 1 year. The volumetric and diffusion tensor imaging measures from the ID infants were compared with monkeys who remained continuously iron sufficient. A prior history of ID was associated with smaller total brain volumes, driven primarily by significantly less total gray matter and smaller GM volumes in several cortical regions. At the macrostructual level, the effect on white matter volumes was not as overt. However, DTI analyses of WM microstructure indicated two later-maturating anterior tracts were negatively affected. The findings reaffirm the importance of iron for normal brain development. Given that brain differences were still evident even after iron treatment and following recovery of iron-dependent hematological indices, the results highlight the importance of early detection and preemptive supplementation to limit the neural consequences of ID. (shrink)

The field of cognitive modeling has progressed beyond modeling cognition in the context of simple laboratory tasks and begun to attack the problem of modeling it in more complex, realistic environments, such as those studied by researchers in the field of human factors. The problems that the cognitive modeling community is tackling focus on modeling certain problems of communication and control that arise when integrating with the external environment factors such as implicit and explicit knowledge, emotion, cognition, and the cognitive (...) system. These problems must be solved in order to produce integrated cognitive models of moderately complex tasks. Architectures of cognition in these tasks focus on the control of a central system, which includes control of the central processor itself, initiation of functional processes, such as visual search and memory retrieval, and harvesting the results of these functional processes. Because the control of the central system is conceptually different from the internal control required by individual functional processes, a complete architecture of cognition must incorporate two types of theories of control: Type 1 theories of the structure, functionality, and operation of the controller, and type 2 theories of the internal control of functional processes, including how and what they communicate to the controller. This book presents the current state of the art for both types of theories, as well as contrasts among current approaches to human-performance models. It will be an important resource for professional and student researchers in cognitive science, cognitive-engineering, and human-factors.Contributors: Kevin A. Gluck, Jerry T. Ball, Michael A. Krusmark, Richard W. Pew, Chris R. Sims, Vladislav D. Veksler, John R. Anderson, Ron Sun, Nicholas L. Cassimatis, Randy J. Brou, Andrew D. Egerton, Stephanie M. Doane, Christopher W. Myers, Hansjorg Neth, Jeremy M Wolfe, Marc Pomplun, Ronald A. Rensink, Hansjorg Neth, Chris R. Sims, Peter M. Todd, Lael J. Schooler, Wai-Tat Fu, Michael C. Mozer, Sachiko Kinoshita, Michael Shettel, Alex Kirlik, Vladislav D. Veksler, Michael J. Schoelles, Jerome R. Busemeyer, Eric Dimperio, Ryan K. Jessup, Jonathan Gratch, Stacy Marsella, Glenn Gunzelmann, Kevin A. Gluck, Scott Price, Hans P. A. Van Dongen, David F. Dinges, Frank E. Ritter, Andrew L. Reifers, Laura Cousino Klein, Michael J. Schoelles, Eva Hudlicka, Hansjorg Neth, Christopher W. Myers, Dana Ballard, Nathan Sprague, Laurence T. Maloney, Julia Trommershauser, Michael S. Landy, A. Hornof, Michael J. Schoelles, David Kieras, Dario D. Salvucci, Niels Taatgen, Erik M. Altmann, Richard A. Carlson, Andrew Howes, Richard L. Lewis, Alonso Vera, Richard P. Cooper, and Michael D. Byrne. (shrink)

Although certain aspects of C.S. Lewis's work have been studied in great detail, others have been comparatively neglected. This collection of essays looks at Lewis's life and work, and those of his friends and associates, from many different angles, but all connected through a common theme of identity. Questions of identity are essential to the understanding of any writer. The ways authors perceive themselves and who they are, the communities they belong to by birth or choice, inevitably influence their work. (...) The way they present other people, real or fictional, are also rooted in their own conception of identity. In this volume, scholars from several countries examine gender and family roles; national, regional, racial and professional identities; membership of a particular church; ideological attachments and personal descriptions, either with regard to Lewis and those who knew him and influenced him, or in a study of their writings. Authors studied here include J.R.R. Tolkien, Dorothy L. Sayers, Charles Williams, George MacDonald and T.S. Eliot. (shrink)

Like Caesar's Gaul, my essay is divided into three parts, according to the subjects mentioned in the subtitle. The “crisis consciousness” of the main title forms less a subdivision of the essay than a leitmotif accompanying all the parts as well as the whole.

In this Introduction, Alexander and his work are outlined in its historical context with an account of his place in the history of philosophy. The background and motivation of the work is given along with a description of the organisation and content of the chapters that follow. Justification is also given for the inclusion of three posthumous papers by Alexander and how these posthumous papers relate to the newly commissioned essays.

The most relevant and plausible conceptions of economic rationality, interpersonal liberty, human welfare, and private-property anarchy do not conflict in theory or practice. Using philosophy and social science, Escape from Leviathan defends this bold, non-normative, thesis from contrary positions in the scholarly literature. Writers considered include David Friedman, John Gray, R. M. Hare, Robert Nozick, Karl Popper, John Rawls, Murray Rothbard, Alan Ryan, Amartya Sen, and Bernard Williams. *** The rationality assumptions of neoclassical and Austrian School economics are reconciled (...) and related to liberty and welfare. A new pre-propertarian theory of interpersonal liberty as the absence of (initiated or proactively) imposed cost is argued to be libertarian. Human welfare is defended as the satisfaction of unimposed wants. Practical anarchy is simply unconstrained private property. Related topics include free will, weakness of will, the nature of moralizing, intellectual property, and restitution and retribution. Critical-rationalist epistemology (theories can only be criticized and tested, not justified or supported) is applied throughout. This is a ground-breaking work that is also an excellent introduction to libertarianism and social thought. (shrink)

Editors’ Note: A major goal of Science and Engineering Ethics is to promote discussion of the ethical issues raised by various aspects of science and engineering, both within the pages of this journal and beyond. We are beginning a series of case presentations and discussions in the Educational Forum. We invite readers to respond to the case and accompanying commentaries, and to submit other cases and commentaries for future publication. We look forward to hearing from you. — S. J. Bird, (...) R. E. Spier. (shrink)