Recent studies of early development in a number of ivertebrate and vertebrate species have suggested that growth factors and their receptors may play important roles in differentiation as well as cell proliferation. In the mouse embryo, the expression of the receptors for insulin and insulin‐like growth factors I and II (IGF‐I and ‐II) are temporally regulated. The ontogeny of receptor and ligand expression within the insulin and IGF gene family suggests that the very earliest stages of mammalian embryogenesis may be (...) subject to regulation by autocrine and paracrine factors from maternal and embryonic sources. (shrink)

Adolescence is an important yet vulnerable period of transition from childhood to adulthood. An increasing number of studies support the traditional Catholic view, which sees teens as prone to making poor decisions when influ­enced by emotions or peer pressure but capable of thriving when guided by parents and religion. However, newer policies of medical societies undermine the traditional supports of family and faith with a permissive approach toward sexual exploration. To counter this unhealthy trend, which seems to be based more (...) on postmodern ideology than robust science, Catholic physicians should become experts in adolescent behavior and sexual health. Physicians should be sensitive to opposing viewpoints but participate only in treatments which are ethical and beneficial for their patients. Specifically, Catholic physicians must avoid contraceptives, abortion, and “gender-affirming” therapies. By using good science and emulating the models of service, Socratic dialogue, and accompaniment, physicians can guide adolescents toward a virtuous, healthy adulthood. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:69 WILLIAM ROBERTSON AND DAVID HUME: THREE LETTERS The relationship between David Hume and his fellow Scottish historian William Robertson has always seemed one-sided. Despite the existence of fifteen letters to Robertson in the standard volumes of Hume's correspondence,1 Hume scholars have long had reason to regret the lack of a single extant letter from Robertson to Hume. None are to be found, for example, where one would most (...) expect them to be — in the Royal Society of Edinburgh, alongside the letters to Hume from various other Moderate clergymen and literati in Robertson's circle, such as Hugh Blair and Adam Ferguson. Fortunately, however, two of Robertson's letters to Hume (numbered II and III below) have now turned up where one would not expect them to be — among Robertson's own correspondence in the Robertson2 Macdonald Papers, National Library of Scotland. They are not mere drafts, such as one is accustomed to find among an author's private papers; rather, they are autograph signed letters that appear to have actually been posted. How and when they found their way back to Robertson's personal papers, and what became of the rest of Robertson's letters to Hume, are questions open to speculation. For the moment we are grateful for the letters we now have, neither of which is known to have been published before in whole or in part. Nor has Hume been identified before as the recipient of either of these letters, though internal evidence makes it clear that he was. Both letters date from the late 1760s, when Hume was living in London and Robertson was at the peak of his multi-faceted career in Edinburgh as university principal, parish minister, ecclesiastical leader, and man of letters. The first of them, dated 27 March 1767, was sent to Hume in his capacity as under- 70 secretary of state in the Northern Department (an office he held from February 1767 to January 1768). It is plainly a reply to a letter of 19 March, in which Hume had discussed three topics to which Robertson was 5 responding: Robertson's efforts to secure a military chaplaincy for a certain Scottish minister (evidently named Brodie); Conway's role in the famous dispute between Hume and Rousseau; and the public response to Adam Ferguson's newly published Essay on the History of Civil Society. In addition Robertson addresses a matter that Hume had apparently broached with him at some earlier time: the attempt to find a suitable Scottish church to which Hume might obtain a crown presentation for his nephews' tutor, the Rev. Christopher Tait. The letter concludes on a note of admiration that is characteristic not only of Robertson but of most of Hume's other "Protestant Pastors" in Scotland. The second letter to Hume, dated 31 January 1769, is chiefly concerned with the forthcoming publication of Robertson's History of Charles V and the French translation of it by J.-B.-A. Suard — subjects that had been treated in two letters from Hume to 7 Robertson of autumn 1768. It also contains a strong recommendation for a bright young Scottish writer (in both the legal and literary senses of that term) who would one day become Robertson's most vitriolic critic: Gilbert Stuart. On the personal side, there is encouragement for the now unemployed Hume to return to Edinburgh, as he was then threatening to do, after his "great glut of society" at Paris and London, and there are allusions in the closing paragraph to Hume's part in introducing his friend to polite society when Robertson had visited London to arrange the publication of Charles V in the spring of 1768. 71 To these two letters from Robertson we have prefixed a third from earlier in the same decade, one Q not actually addressed to Hume but largely about him. Robertson wrote it to their common friend Gilbert Elliot (later Sir Gilbert Elliot) on 8 March 1762, two days before the Town Council elected Robertson principal of Edinburgh University. The first paragraph deals with the principalship and relates to Hume only indirectly, as we point out in a footnote. The second paragraph, however, contains interesting... (shrink)

During human-human interaction, emotion plays a vital role in structuring dialogue. Emotional content drives features such as topic shift, lexicalisation change and timing; it affects the delicate balance between goals related to the task at hand and those of social interaction; and it represents one type of feedback on the effect that utterances are having. These various facets are so central to most real-world interaction, that it is reasonable to suppose that emotion should also play an important role in human-computer (...) interaction. To that end, techniques for detecting, modelling, and responding appropriately to emotion are explored, and an architecture for bringing these techniques together into a coherent system is presented. (shrink)

Currently, an increasing number of organizations are attempting to enhance inclusiveness of under represented individuals through proactive efforts to manage their diversity. In this article, we define diversity management against the backdrop of its predecessor, affirmative action. Next, selected examples of organizations that have experienced specific positive bottom line results from diversity management strategies are discussed. The present paper also provides a conceptual model to examine antecedents and consequences of effective diversity management. Additional research areas identified from the model and (...) literature review result in a number of research propositions intended to enhance the exploration and understanding of diversity management. (shrink)

Throughout his life, John Tyler Bonner contributed to major transformations in the fields of developmental and evolutionary biology. He pondered the evolution of complexity and the significance of randomness in evolution, and was instrumental in the formation of evolutionary developmental biology. His contributions were vast, ranging from highly technical scientific articles to numerous books written for a broad audience. This historical vignette gathers reflections by several prominent researchers on the greatness of John Bonner and the implications of his work.

While new generations of implantable brain computer interface devices are being developed, evidence in the literature about their impact on the patient experience is lagging. In this article, we address this knowledge gap by analysing data from the first-in-human clinical trial to study patients with implanted BCI advisory devices. We explored perceptions of self-change across six patients who volunteered to be implanted with artificially intelligent BCI devices. We used qualitative methodological tools grounded in phenomenology to conduct in-depth, semi-structured interviews. Results (...) show that, on the one hand, BCIs can positively increase a sense of the self and control; on the other hand, they can induce radical distress, feelings of loss of control, and a rupture of patient identity. We conclude by offering suggestions for the proactive creation of preparedness protocols specific to intelligent—predictive and advisory—BCI technologies essential to prevent potential iatrogenic harms. (shrink)

The idea that deep brain stimulation (DBS) induces changes to personality, identity, agency, authenticity, autonomy and self (PIAAAS) is so deeply entrenched within neuroethics discourses that it has become an unchallenged narrative. In this article, we critically assess evidence about putative effects of DBS on PIAAAS. We conducted a literature review of more than 1535 articles to investigate the prevalence of scientific evidence regarding these potential DBS-induced changes. While we observed an increase in the number of publications in theoretical neuroethics (...) that mention putative DBS-induced changes to patients’ postoperative PIAAAS, we found a critical lack of primary empirical studies corroborating these claims. Our findings strongly suggest that the theoretical neuroethics debate on putative effects of DBS relies on very limited empirical evidence and is, instead, reliant on unsubstantiated speculative assumptions probablyin lieuof robust evidence. As such, this may reflect the likelihood of a speculative neuroethics bubble that may need to be deflated. Nevertheless, despite the low number of first-hand primary studies and large number of marginal and single case reports, potential postoperative DBS changes experienced by patients remain a critical ethical concern. We recommend further empirical research in order to enhance theoretical neuroethics work in the area. In particular, we call for the development of better instruments capable of capturing potential postoperative variations of PIAAAS. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:69 WILLIAM ROBERTSON AND DAVID HUME: THREE LETTERS The relationship between David Hume and his fellow Scottish historian William Robertson has always seemed one-sided. Despite the existence of fifteen letters to Robertson in the standard volumes of Hume's correspondence,1 Hume scholars have long had reason to regret the lack of a single extant letter from Robertson to Hume. None are to be found, for example, where one would most (...) expect them to be — in the Royal Society of Edinburgh, alongside the letters to Hume from various other Moderate clergymen and literati in Robertson's circle, such as Hugh Blair and Adam Ferguson. Fortunately, however, two of Robertson's letters to Hume (numbered II and III below) have now turned up where one would not expect them to be — among Robertson's own correspondence in the Robertson2 Macdonald Papers, National Library of Scotland. They are not mere drafts, such as one is accustomed to find among an author's private papers; rather, they are autograph signed letters that appear to have actually been posted. How and when they found their way back to Robertson's personal papers, and what became of the rest of Robertson's letters to Hume, are questions open to speculation. For the moment we are grateful for the letters we now have, neither of which is known to have been published before in whole or in part. Nor has Hume been identified before as the recipient of either of these letters, though internal evidence makes it clear that he was. Both letters date from the late 1760s, when Hume was living in London and Robertson was at the peak of his multi-faceted career in Edinburgh as university principal, parish minister, ecclesiastical leader, and man of letters. The first of them, dated 27 March 1767, was sent to Hume in his capacity as under- 70 secretary of state in the Northern Department (an office he held from February 1767 to January 1768). It is plainly a reply to a letter of 19 March, in which Hume had discussed three topics to which Robertson was 5 responding: Robertson's efforts to secure a military chaplaincy for a certain Scottish minister (evidently named Brodie); Conway's role in the famous dispute between Hume and Rousseau; and the public response to Adam Ferguson's newly published Essay on the History of Civil Society. In addition Robertson addresses a matter that Hume had apparently broached with him at some earlier time: the attempt to find a suitable Scottish church to which Hume might obtain a crown presentation for his nephews' tutor, the Rev. Christopher Tait. The letter concludes on a note of admiration that is characteristic not only of Robertson but of most of Hume's other "Protestant Pastors" in Scotland. The second letter to Hume, dated 31 January 1769, is chiefly concerned with the forthcoming publication of Robertson's History of Charles V and the French translation of it by J.-B.-A. Suard — subjects that had been treated in two letters from Hume to 7 Robertson of autumn 1768. It also contains a strong recommendation for a bright young Scottish writer (in both the legal and literary senses of that term) who would one day become Robertson's most vitriolic critic: Gilbert Stuart. On the personal side, there is encouragement for the now unemployed Hume to return to Edinburgh, as he was then threatening to do, after his "great glut of society" at Paris and London, and there are allusions in the closing paragraph to Hume's part in introducing his friend to polite society when Robertson had visited London to arrange the publication of Charles V in the spring of 1768. 71 To these two letters from Robertson we have prefixed a third from earlier in the same decade, one Q not actually addressed to Hume but largely about him. Robertson wrote it to their common friend Gilbert Elliot (later Sir Gilbert Elliot) on 8 March 1762, two days before the Town Council elected Robertson principal of Edinburgh University. The first paragraph deals with the principalship and relates to Hume only indirectly, as we point out in a footnote. The second paragraph, however, contains interesting... (shrink)

The phenomenological effects of deep brain stimulation (DBS) on the self of the patient remains poorly understood and under described in the literature, despite growing evidence that a significant number of patients experience postoperative neuropsychiatric changes. To address this lack of phenomenological evidence, we conducted in-depth, semistructured interviews with 17 patients with Parkinson's disease who had undergone DBS. Exploring the subjective character specific to patients' experience of being implanted gives empirical and conceptual understanding of the potential phenomenon of DBS-induced self-estrangement. (...) Our study concluded that (1) the more patients preoperatively felt alienated by their illness, the more they experienced postoperative self-estrangement, and (2) the notion of self-estrangement seems to exist in association with certain common qualitative characters, namely, loss of control, which reflects a deteriorative estrangement, and distorted perception of capacities, which reveals a restorative estrangement. These findings indicate that subjective self-reports help us to understand some aspects of the potential phenomenon of DBS-induced self-estrangement. (shrink)

The current COVID-19 pandemic and the previous SARS/MERS outbreaks of 2003 and 2012 have resulted in a series of major global public health crises. We argue that in the interest of developing effective and safe vaccines and drugs and to better understand coronaviruses and associated disease mechenisms it is necessary to integrate the large and exponentially growing body of heterogeneous coronavirus data. Ontologies play an important role in standard-based knowledge and data representation, integration, sharing, and analysis. Accordingly, we initiated the (...) development of the community-based Coronavirus Infectious Disease Ontology in early 2020. -/- As an Open Biomedical Ontology (OBO) library ontology, CIDO is open source and interoperable with other existing OBO ontologies. CIDO is aligned with the Basic Formal Ontology and Viral Infectious Disease Ontology. CIDO has imported terms from over 30 OBO ontologies. For example, CIDO imports all SARS-CoV-2 protein terms from the Protein Ontology, COVID-19-related phenotype terms from the Human Phenotype Ontology, and over 100 COVID-19 terms for vaccines (both authorized and in clinical trial) from the Vaccine Ontology. CIDO systematically represents variants of SARS-CoV-2 viruses and over 300 amino acid substitutions therein, along with over 300 diagnostic kits and methods. CIDO also describes hundreds of host-coronavirus protein-protein interactions (PPIs) and the drugs that target proteins in these PPIs. CIDO has been used to model COVID-19 related phenomena in areas such as epidemiology. The scope of CIDO was evaluated by visual analysis supported by a summarization network method. CIDO has been used in various applications such as term standardization, inference, natural language processing (NLP) and clinical data integration. We have applied the amino acid variant knowledge present in CIDO to analyze differences between SARS-CoV-2 Delta and Omicron variants. CIDO's integrative host-coronavirus PPIs and drug-target knowledge has also been used to support drug repurposing for COVID-19 treatment. -/- CIDO represents entities and relations in the domain of coronavirus diseases with a special focus on COVID-19. It supports shared knowledge representation, data and metadata standardization and integration, and has been used in a range of applications. (shrink)

In her article, Pascale Hess raises the issue of whether her proposed model may be extrapolated and applied to clinical research fields other than stem cell-based interventions in the brain (SCBI-B) (Hess 2012). Broadly summarized, Hess’s model suggests prioritizing efficacy over safety in phase 1 trials involving irreversible interventions in the brain, when clinical criteria meet the appropriate population suffering from “degenerative brain diseases” (Hess 2012). Although there is a need to reconsider the traditional phase 1 model, especially with respect (...) to first-in-human clinical trials involving novel technologies, the question arises as to whether it is appropriate to advocate for a new model that prioritizes efficacy over safety across all phase 1 clinical research trials involving irreversible interventions in the brain. -/- . (shrink)

Si, apres tout, les logiciens, et meme les philosophes, peuvent dire des choses sensees, alors il est possible que certains logiciens, et meme des philosophes du passe, y compris d'un passe lointain, aient dit parfois, meme si certaines lumieres leur faisaient defaut, des choses sensees. Cet hommage mesure, rendu par Ryle au passe, donne ici lieu a une brillante fantaisie sur la vie de Platon ou les faits ne cessent de repondre aux raisons, comme dans un roman anglais. Mais le (...) motif est tres serieux: la vie d'un philosophe devrait aller comme sa pensee, du plus obscur au plus clair. Las! Dans l'itineraire de Platon les faits furent les plus forts. Il faut donc secouer l'image traditionnelle de sa vie et de sa philosophie et reprendre toute la chronologie des Dialogues. A sa maniere, Ryle nous offre une meditation sur les commencements de la philosophie. (shrink)

Although Caenorhabditis elegans was chosen and modified to be an organism that would facilitate a reductionist program for neurogenetics, recent research has provided evidence for properties that are emergent from the neurons. While neurogenetic advances have been made using C. elegans which may be useful in explaining human neurobiology, there are severe limitations on C. elegans to explain any significant human behavior.

A definition of [George] Eliot as renunciatory culture-mother may seem an odd preface to a discussion of Silas Marner since, of all her novels, this richly constructed work is the one in which the empty pack of daughterhood appears fullest, the honey of femininity most unpunished. I want to argue, however, that this “legendary tale,” whose status as a schoolroom classic makes it almost as much a textbook as a novel, examines the relationship between woman’s fate and the structure of (...) society in order to explicate the meaning of the empty pack of daughterhood. More specifically, this story of an adoptive father, an orphan daughter, and a dead mother broods on events that are actually or symbolically situated on the margins or boundaries of society, where culture must enter into a dialectical struggle with nature, in order to show how the young female human animal is converted into the human daughter, wife, and mother. Finally, then, this fictionalized “daughteronomy” becomes a female myth of origin narrated by a severe literary mother uses the vehicle of a half-allegorical family romance to urge acquiescence in the law of the Father.If Silas Marner is not obviously a story about the empty pack of daughterhood, it is plainly, of course, a “legendary tale” about a wanderer with a heavy yet empty pack. In fact, it is through the image of the packman that the story, in Eliot’s own words, “came across my other plans by a sudden inspiration”—and, clearly, her vision of this burdened outsider is a re-vision of the Romantic wanderer who haunts the borders of society, seeking a local habitation and a name.11 I would argue further, though, that Eliot’s depiction of Silas Marner’s alienation begins to explain Ruby Redinger’s sense that the author of this “fluid and metaphoric” story “is” both Eppie, the redemptive daughter, and Silas, the redeemed father. For in examining the outcast weaver’s marginality, this novelist of the “hidden life” examines also her own female disinheritance and marginality.12 11. Eliot to Blackwood, 12 Jan. 1861, quoted in Ruby V. Redinger, George Eliot: The Emergent Self , p. 436. As Susan Garber has suggested to me, the resonant image of the “packman” may be associated with the figure of Bob Jakin in The Mill on the Floss , the itinerant pack-bearing peddler who brings Maggie Tulliver a number of books, the most crucial of which is Tomas à Kempis’ treatise on Christian renunciation .12. Rediner, George Eliot, p. 439; Eliot, “Finale,” Middlemarch, p. 896. Sandra M. Gilbert, now professor of English at the University of California, Davis, will join the Department of English at Princeton University in fall 1985. Her most recent works include a collection of poems, Emily’s Bread , and, coedited with Susan Gubar, The Norton Anthology of Literature by Women: The Tradition in English . In addition, she is at work on Mother Rites: Studies in Literature and Maternity, a project from which “Life’s Empty Pack” is drawn, and, with Susan Gubar, on No Man’s Land: The Place of the Woman Writer in the Twentieth Century, a sequel to their collaborative Madwoman in the Attic: The Woman Writer and the Nineteenth-Century Literary Imagination . “Costumes of the Mind: Transvestitism as Metaphor in Modern Literature” appeared in the Winter 1980 issue of Critical Inquiry. (shrink)

Optogenetics is being optimistically presented in contemporary media for its unprecedented capacity to control cell behavior through the application of light to genetically modified target cells. As such, optogenetics holds obvious potential for application in a new generation of invasive medical devices by which to potentially provide treatment for neurological and psychiatric conditions such as Parkinson's disease, addiction, schizophrenia, autism and depression. Design of a first-in-human optogenetics experimental trial has already begun for the treatment of blindness. Optogenetics trials involve a (...) combination of highly invasive genetic and electronic interventions that results in irreversible and permanent modifications of an individual's nervous system. Given its novelty, its uncertain benefit to patients, and its unique risk profile of irreversible physiological alteration, optogenetics requires a reassessment of the ethical challenges for protecting human participants in clinical trials, particularly at formative stages of clinical evaluation. This study explores the evolving ethical issues surrounding optogenetics’ potential harm to participants within trial design, especially focusing on whether Phase 1 trials should incorporate efficacy as well as safety endpoints in ways that are fair and respectful to research trial participants. (shrink)

Gilbert Romeyer Dherbey, qui avait succédé à Pierre Aubenque à la chaire de philosophie antique de Paris IV, et qui a su maintenir très haut le rayonnement international du Centre de recherches sur la pensée antique, plus familièrement appelé Centre Léon Robin, n'est pas seulement un aristotélisant subtil et exigeant. Il a toujours refusé une pure érudition qui oublierait de se relier à une pensée philosophique. Et par là même, peut-être, il déborde le cadre strictement universitaire de la spécialisation, (...) d'abord, non seulement à l'intérieur du domaine grec, avec notamment son approche des présocratiques, mais surtout comme éditeur et interprète reconnu de Maine de Biran, et aussi par son goût de la littérature, que trahit une élégance stylistique heureusement toujours féconde. C'est pour rendre hommage au professeur et à l'homme, que nous nous sommes réunis à Lyon, au printemps 2008, autour de lui, son propre professeur de khâgne, M Gourinat, son camarade de toujours, J-F Marquet, ex-collègue de Paris IV, le maître des études hégéliennes qu'est B Bourgeois, les collègues, les amis, les anciens élèves, que sont B Saint Girons, M Protopapas, A-G Wersinger, A Devarieux, J-J Duhot, J-F Mattéi, J Frère, M Rashed, A Villani, F Baghdassarian. (shrink)

To conclude that there is enough or not enough evidence demonstrating that deep brain stimulation causes unintended postoperative personality changes is an epistemic problem that should be answered on the basis of established, replicable, and valid data. If prospective DBS recipients delay or refuse to be implanted because they are afraid of suffering from personality changes following DBS, and their fears are based on unsubstantiated claims made in the neuroethics literature, then researchers making these claims bear great responsibility for prospective (...) recipients' medical decisions and subsequent well-being. Our article “Deflating the ‘DBS causes personality’ bubble” reported an increase in theoretical neuroethics publications suggesting putative DBS-induced changes to personality, identity, agency, autonomy, authenticity and/or self and a critical lack of supporting primary empirical studies. This special issue of Neuroethics brings together responses to our initial publication, with our own counter-responses organized according to common themes. We provide a brief summary for each commentary and its main criticisms as well as a discussion of the way in which these responses can: 1) help clarify the meaning of PIAAAS, suggesting supplementary frameworks for understanding the impact of DBS on PIAAAS; 2) provide further empirical evidence of PIAAAS by presenting results from the researchers’ own work; and/or 3) offer a critique of our research approach and/or findings. Unintended postoperative putative changes to PIAAAS remain a critical ethical concern. It is beyond dispute that we need to develop reliable empirical and conceptual instruments able to measure complex cognitive, affective, and behavioural changes in order to investigate whether they are attributable to DBS alone. (shrink)

Background Outbreaks of infectious disease cause serious and costly health and social problems. Two new technologies – pathogen whole genome sequencing and Big Data analytics – promise to improve our capacity to detect and control outbreaks earlier, saving lives and resources. However, routinely using these technologies to capture more detailed and specific personal information could be perceived as intrusive and a threat to privacy. Method Four community juries were convened in two demographically different Sydney municipalities and two regional cities in (...) New South Wales, Australia to elicit the views of well-informed community members on the acceptability and legitimacy of: making pathogen WGS and linked administrative data available for public health researchusing this information in concert with data linkage and machine learning to enhance communicable disease surveillance systems Fifty participants of diverse backgrounds, mixed genders and ages were recruited by random-digit-dialling and topic-blinded social-media advertising. Each jury was presented with balanced factual evidence supporting different expert perspectives on the potential benefits and costs of technologically enhanced public health research and communicable disease surveillance and given the opportunity to question experts. Results Almost all jurors supported data linkage and WGS on routinely collected patient isolates for the purposes of public health research, provided standard de-identification practices were applied. However, allowing this information to be operationalised as a syndromic surveillance system was highly contentious with three juries voting in favour, and one against by narrow margins. For those in favour, support depended on several conditions related to system oversight and security being met. Those against were concerned about loss of privacy and did not trust Australian governments to run secure and effective systems. Conclusions Participants across all four events strongly supported the introduction of data linkage and pathogenomics to public health research under current research governance structures. Combining pathogen WGS with event-based data surveillance systems, however, is likely to be controversial because of a lack of public trust, even when the potential public health benefits are clear. Any suggestion of private sector involvement or commercialisation of WGS or surveillance data was unanimously rejected. (shrink)

Research on bilingualism has grown exponentially in recent years. However, the comprehension of speech in noise, given the ubiquity of both bilingualism and noisy environments, has seen only limited focus. Electroencephalogram studies in monolinguals show an increase in alpha power when listening to speech in noise, which, in the theoretical context where alpha power indexes attentional control, is thought to reflect an increase in attentional demands. In the current study, English/French bilinguals with similar second language proficiency and who varied in (...) terms of age of L2 acquisition from 0 to 15 years completed a speech perception in noise task. Participants were required to identify the final word of high and low semantically constrained auditory sentences such as “Stir your coffee with a spoon” vs. “Bob could have known about the spoon” in both of their languages and in both noise and quiet during electrophysiological recording. We examined the effects of language, AoA, semantic constraint, and listening condition on participants’ induced alpha power during speech comprehension. Our results show an increase in alpha power when participants were listening in their L2, suggesting that listening in an L2 requires additional attentional control compared to the first language, particularly early in processing during word identification. Additionally, despite similar proficiency across participants, our results suggest that under difficult processing demands, AoA modulates the amount of attention required to process the second language. (shrink)

This research assessed how the performance and team skills of three-person teams working with an Intelligent Team Tutoring System on a virtual military surveillance task were affected by feedback privacy, participant role, task experience, prior team experience, and teammate familiarity. Previous work in Intelligent Tutoring Systems has focused on outcomes for task skill training for individual learners. As research extends into intelligent tutoring for teams, both task skills and team skills are necessary for good team performance. This work includes a (...) brief review of previous research on ITTSs, feedback, teams, and teamwork, including the recounting of two categories of a framework of teamwork performance, Communication and Cognition, which are relevant to the present study. This research examines the effects of an intelligent agent, as well as features of the team, its members, and the task being undertaken, on team communication and team situation awareness. Thirty-seven teams of three participants, each at their own computer running a multiplayer surveillance simulation, were given just-in-time private or public performance feedback during four 5-min trials. In the fourth trial, two of the three participants switched roles. Feedback type, teamwork experience, and teammate familiarity had no statistically significant effect on communication or team situation awareness. However, higher levels of role experience and task experience showed significant and medium-sized effects on communication performance. Results, based on performance data and structured interview responses, also revealed areas of improvement in future feedback design and a potential benchmark for feedback frequency in an action-oriented serious game-based ITTS. Among the conclusions are six design objectives for future ITTSs, establishing a foundation for future research on designing effective ITTSs that train interpersonal skills to nascent teams. (shrink)

Postmortem research on the brains of American tackle football players has revealed the presence of chronic traumatic encephalopathy (CTE), a degenerative brain disease caused by repeated head trauma. Repeated concussion is a risk factor for CTE, raising ethical concerns about the long-term effects of concussion on athletes at risk for football-related concussion. Of equal concern is that youth athletes are at increased risk for lasting neurocognitive and developmental deficits that can result in behavioral disturbances and diminished academic performance. In this (...) article, we consider evidence of the effects of concussion in youth athletes, and discuss ethical duties to youth athletes and how these duties might be satisfied, given the intrinsic risks of football. Finally, we evaluate potential strategies for reducing concussions in junior football, and recommend the optimal strategy for reducing brain injury to an acceptable level while still making available the benefits of football participation for youth athletes. (shrink)

There has been a surge in mass media reports extolling the potential for using three-dimensional printing of biomaterials to treat a wide range of clinical conditions. Given that mass media is recognized as one of the most important sources of health and medical information for the general public, especially prospective patients, we report and discuss the ethical consequences of coverage of 3D bioprinting in the media. First, we illustrate how positive mass media narratives of a similar biofabricated technology, namely the (...) Macchiarini scaffold tracheas, which was involved in lethal experimental human trials, influenced potential patient perceptions. Second, we report and analyze the positively biased and enthusiastic portrayal of 3D bioprinting in mass media. Third, we examine the lack of regulation and absence of discussion about risks associated with bioprinting technology. Fourth, we explore how media misunderstanding is dangerously misleading the narrative about the technology. (shrink)

There is a striking difference, however, between the ways female and male modernists define and describe literal or figurative costumes. Balancing self against mask, true garment against false costume, Yeats articulates a perception of himself and his place in society that most other male modernists share, even those who experiment more radically with costume as metaphor. But female modernists like Woolf, together with their post-modernist heirs, imagine costumes of the mind with much greater irony and ambiguity, in part because women's (...) clothing is more closely connected with the pressures and oppressions of gender and in part because women have far more to gain from the identification of costume with self or gender. Because clothing powerfully defines sex roles, both overt and covert fantasies of transvestism are often associated with the intensified clothes consciousness expressed by these writers. But although such imagery is crucially important in works by Joyce, Lawrence, and Eliot on the one hand, and in works by Barnes, Woolf, and H. D. on the other, it functions very differently for male modernists from the way it operates for female modernists.Sandra M. Gilbert, professor of English at the University of California at Davis, is the author of Acts of Attention: The Poems of D.H. Lawrence and In the Fourth World; the coauthor, with Susan Gubar, of The Madwoman in the Attic: The Woman Writer and the Nineteenth-Century Literary Imagination, and its sequel, No Man's Land: The Woman Writer and the Twentieth-Century Literary Imagination. (shrink)

We’d like to do a little hypnosis on you. Imagine that you’re ensconced in your own family room, your study, or your queen-sized bed. Settling back, you pick up the remote, flick on the TV, and naturally you turn to PBS. This is what you hear:Host 1: Good evening. Welcome to Masterpiece Theatre. Because Alistair Cooke is away on assignment in Alaska, we’ve agreed to host the show tonight, and that’s both a pleasure and a privilege because our program this (...) evening marks the beginning of a fascinating new series, a first on television: Masterpiece Theatre will present you with a docudrama entitled “Masterpiece Theatre.”Host 2: Like “The First Churchills,” this show analyzes the situation of real-life people—tonight, people in the academy. Names have not been changed to protect either the innocent or the guilty, but all the situations are fictive and at times words that may never have been spoken are put into the mouths of people who did not speak them. Other lines, however, are direct quotations from various written sources, although none of the characters, as we depict them, should be confused with any “actual” persons, whether or not those persons would scribe to the idea of their own reality. Like “Upstairs/Downstairs,” this program will introduce you to a spectrum of characters from many walks of life. What’s different about tonight’s episode, though, is that all these characters have passionate opinions about the show itself. Why, the very idea of Masterpiece Theatre drives some of them to Guerrilla Theatre, others to Theatre of the Absurd. Yes, you’ve always already guessed it: we focus tonight on a drama involving what we used to call humanists—now for some a dirty word—and most of our characters are in deep trouble. Sandra M. Gilbert, professor of English at the University of California, Davis, and Susan Gubar, professor of English at Indiana University, are coauthors of No Man’s Land: The Place of the Woman Writer in the Twentieth Century, Volume 1: The War of the Words and Volume II: Sexchanges , the first installments of a three-part sequel to their Madwoman in the Attic: The Woman Writer and the Nineteenth-Century Literary Imagination . They have also coedited The Norton Anthology of Literature by Women: The Tradition in English. (shrink)

That the pattern into which Lentricchia seeks to assimilate Stevens is politically charged becomes clearest when we turn to the following oddly incomprehensible statement: “In the literary culture that Stevens would create, the ‘phallic’ would not have been the curse word of some recent feminist criticism but the name of a limited, because male, respect for literature” . At the point where he makes this assertion, Lentricchia has been persuasively demonstrating that Stevens was “encouraged … to fantasize the potential social (...) authority of the literary as phallic authority” . But suddenly the critic’s measured discourse is disrupted by obviously personal feelings about the “curse word of some recent feminist criticism” and by a dazzlingly illogical definition of “respect for literature.” Such a disruption suggests that, in making his apparently objective argument about Stevens, Lentricchia has some other not so hidden agenda—and, of course, his peculiar decision to link his discussion of Stevens with an attack on The Madwoman in the Attic further supports this conclusion. What most strikingly reinforces the point, however, is the hysterical—or perhaps, with some recent feminist linguists, we should say “testerical”—rhetoric in which he couches his assault on our work.14 14. The term “testeria,” for male “hysteria,” is proposed by Juli Loesch in “Testeria and Penisolence—A Scourge to Humankind,” Aphra: The Feminist Literary Magazine, 4, 1 : 43-45; quoted in Casey Miller and Kate Swift, Words and Women: New Language in New Times , pp. 60-61. Sandra M. Gilbert, professor of English at Princeton University, and Susan Gubar, professor of English at Indiana University, are coauthors of No Man’s Land: The Place of the Woman Writer in the Twentieth Century, Volume I: The War of the Words , the first installment of a three-part sequel to their Madwoman in the Attic: The Woman Writer and the Nineteenth-Century Literary Imagination . They have also coedited The Norton Anthology of Literature by Women: The Tradition in English. (shrink)

How should billions of species observations worldwide be shared and made reusable? Many biodiversity scientists assume the ideal solution is to standardize all datasets according to a single, universal classification and aggregate them into a centralized, global repository. This ideal has known practical and theoretical limitations, however, which justifies investigating alternatives. To support better community deliberation and normative evaluation, we develop a novel conceptual framework showing how different organizational models, regulative ideals and heuristic strategies are combined to form shared infrastructures (...) supporting data reuse. The framework is anchored in a general definition of data pooling as an activity of making a taxonomically standardized body of information available for community reuse via digital infrastructure. We describe and illustrate unified and pluralistic ideals for biodiversity data pooling and show how communities may advance toward these ideals using different heuristic strategies. We present evidence for the strengths and limitations of the unification and pluralistic ideals based on systemic relationships of power, responsibility and benefit they establish among stakeholders, and we conclude the pluralistic ideal is better suited for biodiversity data. (shrink)

The information contained within the linear sequence of bases (the genome) must be faithfully replicated in each cell cycle, with a balance of constancy and variation taking place over the course of evolution. Recently, it has become clear that additional information important for genetic regulation is contained within the chromatin proteins associated with DNA (the epigenome). Epigenetic information also must be faithfully duplicated in each cell cycle, with a balance of constancy and variation taking place during the course of development (...) to achieve differentiation while maintaining identity within cell lineages. Both the genome and the epigenome are synthesized at the replication fork, so the events occurring during S‐phase provide a critical window of opportunity for eliciting change or maintaining existing genetic states. Cells discriminate between different states of chromatin through the activities of proteins that selectively modify the structure of chromatin. Several recent studies report the localization of certain chromatin modifying proteins to replication forks at specific times during S‐phase. Since transcriptionally active and inactive chromosome domains generally replicate at different times during S‐phase, this spatiotemporal regulation of chromatin assembly proteins may be an integral part of epigenetic inheritance. BioEssays 25:647–656, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

Concussion and Mild Traumatic Brain Injury affect millions of people worldwide. mTBI has been called the “signature injury” of the recent conflicts in Iraq and Afghanistan, affecting thousands of active duty service men and women, and veterans. Sport-related concussion represents a significant public health problem, with elite and professional athletes, and millions of youth and amateur athletes worldwide suffering concussions annually. These brain injuries have received scant attention from neuroethicists, and the focus of this special issue is on defining the (...) ethical considerations and developing and elucidating the neuroethical contributions to the discussion about concussion and mTBI. (shrink)

Geron recently announced that it had begun enrolling patients in the world's first-in-human clinical trial involving cells derived from human embryonic stem cells (hESCs). This trial raises important questions regarding the future of hESC-based therapies, especially in spinal cord injury (SCI) patients. We address some safety and efficacy concerns with this research, as well as the ethics of fair subject selection. We consider other populations that might be better for this research: chronic complete SCI patients for a safety trial, subacute (...) incomplete SCI patients for an efficacy trial, and perhaps primary progressive multiple sclerosis (MS) patients for a combined safety and efficacy trial. (shrink)