Microtubules are organized into diverse cellular structures in multicellular organisms. How is such diversity generated? Although highly conserved overall, variable regions within α‐ and β‐tubulins show divergence from other α‐ and β‐tubulins in the same species, but show conservation among different species. Such conservation raises the question of whether diversity in tubulin structure mediates diversity in microtubule organization. Recent studies probing the function of β‐tubulin isotypes in axonemes of insects(1) suggest that tubulin structure, through interactions with extrinsic proteins, can direct (...) the architecture and supramolecular organization of microtubules. (shrink)

Introduction Future HIV vaccine efficacy trials with adolescents will need to ensure that participants comprehend study concepts in order to confer true informed assent. A Hepatitis B vaccine trial with adolescents offers valuable opportunity to test youth understanding of vaccine trial requirements in general. Methods Youth reviewed a simplified assent form with study investigators and then completed a comprehension questionnaire. Once enrolled, all youth were tested for HIV and confirmed to be HIV-negative. Results 123 youth completed the questionnaire (mean age=15 (...) years; 63% male; 70% Hispanic). Overall, only 69 (56%) youth answered all six questions correctly. Conclusions Youth enrolled in a Hepatitis B vaccine trial demonstrated variable comprehension of the study design and various methodological concepts, such as treatment group masking. (shrink)

Many scholars characterize um as an involuntary emission that is devoid of meaning. Other scholars classify um as a non-linguistic signal that conveys certain messages or resolves a conversational problem, such as determining next speaker. Um is often assumed to signal `powerless language' because it displays speaker uncertainty. Yet an examination of real-time, written conversation in two online communities shows that participants sometimes use an um to mark an obvious flaw in prior talk. In the examples below, um may be (...) used to mark talk as flawed on the basis of information that is available to both parties. When um becomes associated with marking obvious flaws in prior talk, interlocutors may trade on this meaning and deploy an um to display for themselves a higher position of relative expertise, vis-à-vis their interlocutors, within local micro-social hierarchies of knowledge. (shrink)

This article is an edited version of the response paper offered at the conclusion of the symposium, Modern Sensibilities. It ties together themes from the symposium papers, as well as ideas prompted by Mieke Bal’s exhibition, Emma & Edvard: Love in the Time of Loneliness, and her accompanying book, Emma and Edvard Looking Sideways: Loneliness and the Cinematic. It focuses on the anachronistic entanglements among Flaubert’s “Emma,” Munch’s motifs, Mieke Bal and Michelle Williams Gamaker’s Madame B, the Munch Museum’s architecture (...) and exhibition scenography, and the exhibition viewer. (shrink)

We can see from the analysis set out here that the two accounts that were the focus of consideration are complementary to one another. It has been my contention that a problem like specifying a concept such as ‘refrain’ is highly complex. One part of it is the problem of determining the relation between the action (or event) and the result. Another part of the problem is that of describing the event itself; what kind of an event is it? These (...) two projects are related and so it is clear that the results must be consistent. However, it is equally clear that the definition which is useful for one project is not the same as that which is helpful for another. The point is that it should not be assumed that an account that initially looks incompatible with one's own must be refuted. It is sometimes better to consider what is needed for a complete account, and whether many different approaches may contribute pieces to the puzzle.We have here one puzzle piece: an analysis of refraining. It should not be assumed that we have thereby completed the puzzle of omission, but omission can be approached the same way; that is, by coordinating parallel projects.Accordingly, the first benefit of the present analysis is that it sets up an approach which is modular in nature. It allows for parallel projects to be pursued separately and coordinated. This kind of approach is sorely needed in this area to counter unproductive dispute.To see how such an approach can be applied to further problems profitably consider the following persistent controversy. Many philosophers are at odds over the importance of the notion of duty, or more informally, reasonable expectation in the understanding of refraining. A number of them (e.g., Hart and Honore, John Casey, and Phillipa Foot) hold that the determining feature for the ascription of responsibility to an agent for not doing something to prevent a harm (say, a death) is the presence of a duty or reasonable expectation that the agent do something about the situation. For example, John Casey holds, “If a man does not do x, we cannot properly say that his not doing x is the cause of some result y, unless in the normal course of events he could have been expected to do x.” Casey, Actions and Consequences (1978).Other philosophers object that a person can cause a result by refraining from (causally) preventing it, and that such an event can be explained without any reference to duty. These two views appear to conflict, but in fact they are both right (but both incomplete). The reason that the above statements are generally thought to constitute a disagreement is that ‘refrain’ is generally taken as the fundamental term of analysis for omissions. Thus, if Casey says, “If a man does not do x...” he is taken to mean “...if a man refrains from doing x...” But he need not mean that. He may mean to say only that the man failed to do x. See my analysis in “Contemplating Failure,” supra note 10. Failing to do something can be, and ordinarily is, thought of as stronger than simple nonaction. But it is much weaker than refraining. For one thing, it has no awareness requirement. Thus, an account like Casey's can explain the ascription of responsibility and the presence of an omission where Green's account (or the account offered here) cannot, and vice versa. Casey's view can explain why we hold (or at least that we hold) responsible the night watchman who forgets to check one of the windows, the bookkeeper who (accidentally) omits an entry in the accounts, or the private duty nurse who fails to prevent a death by falling asleep on the job. No refraining is present in any of these cases. Consequently, any thesis based on refraining alone cannot explain them. But in many cases refraining is precisely what is important, and Green (and others of the same persuasion) are correct to point out that no reference to duty is necessarily required to account for these cases. Analysis based on refraining best explains intentional or conscious omission. Analysis based on duty or reasonable expectation is the only way to explain unconscious omission. More often than not, both elements are present. A complete account of omission needs both. So here again, the better way to view these putatively competing accounts is as parallel projects which work toward a common, but complex end. The approach taken here allows for this kind of much needed coordination. The second benefit of the present analysis is that it clarifies and focuses on the significance of the mental element of refraining. Refraining is conscious omission. Consciousness and omission are its distinguishing features. The effects of seeing the concept this way are pervasive. Here is one example. If I refrain from reporting my full income to the IRS, I have committed fraud, and punitive or even criminal sanctions may be reasonable. If I fail to report my full income through ignorance or mistake (say, I misunderstood the instructions) correcting the error and requiring payment is reasonable, but certainly criminal sanction is not. This oversimplifies the distinction, but it illustrates the focus of my pursuit.With regard to positive actions, law and philosophy have long recognized this important distinction as manifested in the difference between negligence and intentional tort, or manslaughter and murder. Due (I think) to the extraordinary flexibility of language and the weakness and variability of social conventions regarding omissions, this distinction has not been clearly articulated. I think such an analysis is worth pursuing. The present account is one step in that pursuit. (shrink)

The sequencing of the human genome and decreasing costs of sequencing technology have led to the notion of ‘personalized medicine’. This has been taken by some authors to indicate that personalized medicine will provide individualized treatments solely based on one’s DNA sequence. We argue this is overly optimistic and misconstrues the notion of personalization. Such interpretations fail to account for economic, policy and structural constraints on the delivery of healthcare. Furthermore, notions of individualization based on genomic data potentially take us (...) down the road of genetic reductionism obscuring the role of environmental factors in disease and ill health. We propose that one should see personalized medicine as a way of using personal genomic information to stratify individuals into subpopulations and suggest that personalized medicine be seen within a broader idea of personalized healthcare, reflecting healthcare that integrates personal genomic data into cultural, environmental and personal contexts. (shrink)

Although Leibniz characterised himself in the “New Essays” as a “Platonic” as opposed to a “Democritean” philosopher, his intellectual relationship with the most famous of the Renaissance Neoplatonists, Marsilio Ficino, has received little attention. Here we review what can be thus far established regarding Leibniz’s acquaintance with portions of Ficino’s Opera omnia of 1576. We compare Ficino’s disenchantment with the atomistic materialism of Lucretius, which he had favoured in his youth, and his turn to Platonism for inspiration, with Leibniz’s own (...) reported disenchantment with Gassendi’s Epicurean atomism and his invention of a vitalistic monadology that, despite Leibniz’s reservations regarding Ficinian magic, resembles Ficinian nature philosophy in number of striking respects. (shrink)

Numerous major holidays celebrate socially gathering in person. However, in major holidays that happened during the pandemic, desires to nurture relationships and maintain holiday traditions often conflicted with physical distancing and other measures to protect against COVID-19. The current research sought to understand wellbeing during American Thanksgiving in 2020, which happened 8months into the COVID-19 pandemic, after months of physical distancing and stay-at-home orders. American Thanksgiving is a major holiday not limited to any religion. We asked 404 American adults how (...) they spent Thanksgiving Day and to report on their experiences of that day. Predictors of wellbeing that we drew from self-determination theory were satisfaction of the fundamental needs for social connection, for doing what one really wants, and feeling effective. The predictors of wellbeing that we drew from regulatory focus theory were a focus on growth, and a focus on security. We found that feeling socially connected and focusing on growth related most strongly to wellbeing. Additionally, participants who saw even one other person face-to-face reported significantly higher relatedness satisfaction, promotion focus, and wellbeing than those who did not. Our research could help construct persuasive messages that encourage nurturing close relationships at major holidays while remaining safe against the virus. (shrink)

Emotion expressions convey valuable information about others’ internal states and likely behaviours. Accurately identifying expressions is critical for social interactions, but so is perceiver confidence when decoding expressions. Even if a perceiver correctly labels an expression, uncertainty may impair appropriate behavioural responses and create uncomfortable interactions. Past research has found that perceivers report greater confidence when identifying emotions displayed by cultural ingroup members, an effect attributed to greater perceptual skill and familiarity with own-culture than other-culture faces. However, the current research (...) presents novel evidence for an ingroup advantage in emotion decoding confidence across arbitrary group boundaries that hold culture constant. In two experiments using different stimulus sets participants not only labeled minimal ingroup expressions more accurately, but did so with greater confidence. These results offer novel evidence that ingroup advantages in emotion decoding confidence stem partly from social-cognitive processes. (shrink)

Two very different insights motivate characterizing the brain as a computer. One depends on mathematical theory that defines computability in a highly abstract sense. Here the foundational idea is that of a Turing machine. Not an actual machine, the Turing machine is really a conceptual way of making the point that any well-defined function could be executed, step by step, according to simple 'if-you-are-in-state-P-and-have-input-Q-then-do-R' rules, given enough time (maybe infinite time) [see COMPUTATION]. Insofar as the brain is a device whose (...) input and output can be characterized in terms of some mathematical function -- however complicated -- then in that very abstract sense, it can be mimicked by a Turning machine. Given what is known so far brains do seem to depend on cause-effect operations, and hence brains appear to be, in some formal sense, equivalent to a Turing machine [see CHURCH-TURING THESIS]. On its own, however, this reveals nothing at all of how the mind-brain actually works. The second insight depends on looking at the brain as a biological device that processes information from the environment to build complex representations that enable the brain to make predictions and select advantageous behaviors. Where necessary to avoid ambiguity, we will refer to the first notion of computation as algorithmic computation, and the second as information processing computation. (shrink)

A growing volume of research from global data demonstrates that institutional care under conditions of deprivation is profoundly damaging to children, particularly during the critical early years of development. However, how these individuals develop over a life course remains unclear. This study uses data from a survey on the health and development of 420 children mostly under the age of three, placed in 12 infant care institutions between 1958 and 1961 in Zurich, Switzerland. The children exhibited significant delays in cognitive, (...) social, and motor development in the first years of life. Moreover, a follow-up of a subsample of 143 children about 10 years later revealed persistent difficulties, including depression, school related-problems, and stereotypies. Between 2019 and 2021, these formerly institutionalized study participants were located through the Swiss population registry and invited to participate once again in the research project. Now in their early sixties, they are studied for their health, further development, and life-course trajectories. A mixed-methods approach using questionnaires, neuropsychological assessments, and narrative biographical interviews was implemented by a multidisciplinary team. Combining prospective and retrospective data with standardized quantitative and biographical qualitative data allows a rich reconstruction of life histories. The availability of a community sample from the same geographic location, the 1954–1961 cohort of the Zurich Longitudinal Studies, described in detail in a paper in this issue, enables comparison with an unaffected cohort. This article describes the study design and study participants in detail and discusses the potential and limitations of a comparison with a community sample. It outlines a set of challenges and solutions encountered in the process of a lifespan longitudinal study from early childhood into the cusp of old age with a potentially vulnerable sample and summarizes the lessons learned along the way. (shrink)

A medical information commons is a networked data environment utilized for research and clinical applications. At three deliberations across the U.S., we engaged 75 adults in two-day facilitated discussions on the ethical and social issues inherent to sharing data with an MIC. Deliberants made recommendations regarding opt-in consent, transparent data policies, public representation on MIC governing boards, and strict data security and privacy protection. Community engagement is critical to earning the public's trust.

Imagining Dewey' features productive (re)interpretations of 21st century experience using the lens of John Dewey's 'Art as Experience', through the doubled task of putting an array of international philosophers, educators, and artists-researchers in transactional dialogue and on equal footing in an academic text. This book is a pragmatic attempt to encourage application of aesthetic learning and living, ekphrasic interpretation, critical art and agonist pluralism.0There are two foci: (a) Deweyan philosophy and educational themes with (b) analysis and examples of how educators, (...) artists, and researchers envision and enact artful meaning making. This structure meets the needs of university and high school audiences, who are accustomed to learning about challenging ideas through multimedia and aesthetic experience.00Contributors are: James M. Albrecht, Adam I. Attwood, John Baldacchino, Carolyn L. Berenato, M. Cristina Di Gregori, Holly Fairbank, Jim Garrison, Amanda Gulla, Bethany Henning, Jessica Heybach, David L. Hildebrand, Ellyn Lyle, Livio Mattarollo, Christy McConnell Moroye, Maria-Isabel Moreno-Montoro, Maria Martinez Morales, Stephen M. Noonan, Louise G. Phillips, Scott L. Pratt, Joaquin Roldan, Leopoldo Rueda, Tadd Ruetenik, Leisa Sasso, Bruce Uhrmacher, David Vessey, Ricardo Marin Viadel, Sean Wiebe, Li Xu and Martha Patricia Espiritu Zavalza. (shrink)

GESTÃO DE RESÍDUOS SÓLIDOS EM MEGAVENTOS: ASPECTOS CONCEITUAIS.

In Democracy and the Claims of Nature, the leading thinkers in the fields of environmental, political, and social theory come together to discuss the tensions and sympathies of democratic ideals and environmental values. The prominent contributors reflect upon where we stand in our understanding of the relationship between democracy and the claims of nature. Democracy and the Claims of Nature bridges the gap between the often competing ideals of the two fields, leading to a greater understanding of each for the (...) other. (shrink)

The verb “to conjure” is a complex one, for it includes in its standard definition a great range of possible actions or operations, not all of them equivalent, or even compatible. In its most common usage, “to conjure” means to perform an act of magic or to invoke a supernatural force, by casting a spell, say, or performing a particular ritual or rite. But “to conjure” is also to influence, to beg, to command or constrain, to charm, to bewitch, to (...) move or convey, to imagine, to visualize, to call to mind, or to remember. —Rachael DeLue 2012, para 1. When we create with our Brown hands, feminine energy, and full spirits, we conjure. To exist, survive, and thrive in these bodies is a continuous act of conjuring. Our walks conjure. Our smiles conjure. Our tears conjure. Our laughs conjure. Our words conjure. Our artworks are conjurings. We, a Black/Filipina-American woman, a Dominican-American, and a Black-American woman, are guided by our solidarity with one another and all other Black and Brown female identifying persons whose raced and gendered subjectivities exist both inside and outside of colonization, white supremacy, and patriarchy. We bring to life our colored imaginations and curiosities, and share them with the world. We are united by our need for safety, autonomy as beings, dissolution of trauma, and desire to ask, “What would happen if I…?” Imaginative, curious Women of Color (WoC) founded the underground railroad, guided captured Africans and Tainos to the mountains, ignited the Civil Rights Movement, organized laborers and immigrants, birthed the #BlackLivesMatter Movement, conceived the #MeToo Movement, and so much more. Like our kindred counterparts, we have an unrelenting urge to examine, question, wonder, desire, speak to, lead, be curious, and “conjure.” As practicing artists and art educators, our critical arts-based practices are grounded in intersectional feminisms like Womanism, Black Feminist Theory, and Chicana Feminist Theory, which allow us to do these very things. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Matter and Spirit in the Age of Animal MagnetismEric G. WilsonDuring the Romantic period, writers on both sides of the Atlantic explored the sleepwalker as a merger of holiness and horror. Emerging when scientific thinkers for the first time were connecting spirit to electricity and magnetism, the somnambulist became to certain Romantics a disclosure of the difficulty of harmonizing unseen and seen, agency and necessity. This problem prominently arose (...) in Anton Mesmer's late eighteenth-century experiments in animal magnetism, in which the sleepwalker proved a paradox: an opaque revelation of transparent currents and an unconscious vehicle of sophisticated thought. Romantics such as Coleridge embraced the somnambulist as an embodiment of these troubles involved in relating motion and meaning. Coleridge and those who responded to him saw in the hypnotized human this sobering possibility: the invisible requires the visible to make itself manifest while the visible needs the invisible to become significant. 1 This is sublime and sinister: to elevate a material form to spiritual power is transcendence; to sink the boundless into a body is grotesque.Here I explore the philosophical implications of animal magnetism, the place of the sleepwalker in the history of ideas, and the role of the hypnotized human in Romantic writers, especially Coleridge. I also meditate on relationships between matter and spirit, machine and human, word and thing. Along the way, I place the history of ideas and the works of Romantic writers in mutually illuminating dialogues. The literary texts shed fresh light on philosophical problems while the ideas reveal hidden literary elements.The somnambulistic trance had been around long before Mesmer's magnetic sleeps. For centuries, shamans had used auto-hypnosis to sound [End Page 329] their souls and other-hypnosis to cure their tribe-members' ailments. However, somnambulism could not become a scientific phenomenon until Europeans in laboratories began to study electricity and magnetism. In the early modern period, Paracelsus argued that a vital fluid courses through the cosmos. The human being draws this flow like a magnet attracts force. When the body pulls to itself evil effluvia, it falls ill. To return patients to health, Paracelsus placed magnets on painful areas. He hoped to extract the unwanted current and return it to the cosmic swirl. 2 In "magnetizing" spirit, Paracelsus opened a door for empirical inquiry into the invisible world. In 1600, William Gilbert claimed that magnets correspond to the earth: both are animated by universal attraction and repulsion. 3 By the end of the seventeenth-century, Newton proposed that things are impelled by a force that draws and repels. Newton's theory of gravity inspired natural philosophers of the next centuries to search for a principle of which the magnet and the spark are manifestations. 4During the second half of the eighteenth century and the early part of the nineteenth, natural philosophers explored electricity and magnetism with unprecedented precision. In 1752, Benjamin Franklin revealed the mystery of lightning and perhaps the spark of life. 5 Inspired by Franklin, F. C. Oetinger, J. L. Fricker, and Prokop Divisch developed a theology of electricity, based on the belief that God is the electrical current. 6 Later in the century, Luigi Galvani and Alessandro Volta debated over whether the galvanic flow might be the origin and principle of life itself. 7 A few years before Franklin harvested lightning, John Michell argued that the magnetic force is not constrained to lodestones but is possibly pervasive. Some years later, Franz Aepinus suggested that magnetism and electricity manifest a deep energy. Soon after, C. A. de Coulomb discovered the mathematical law by which electrical and magnetic forces operate (Whittaker, pp. 50–59).These findings led to the breakthroughs of the nineteenth century. 8 In 1807, Humphry Davy hypothesized that chemical elements interact through electromagnetic affinity or repulsion. 9 In 1820, H. C. Oersted demonstrated the correspondence between electricity and magnetism. The same year, A. M. Ampere formulated the laws by which electrical and magnetic currents interact (Whittaker, pp. 81–86). Michael Faraday in 1831 revealed electromagnetic induction and thus inaugurated a second Copernican revolution: he showed that matter is not solid and discrete but a field of electromagnetic energy. 10 The dreams of [End... (shrink)