Discovering the underlying mathematical expressions describing a dataset is a core challenge for artificial intelligence. This is the problem of symbolic regression. Despite recent advances in training neural networks to solve complex tasks, deep learning approaches to symbolic regression are underexplored. We propose a framework that leverages deep learning for symbolic regression via a simple idea: use a large model to search the space of small models. Specifically, we use a recurrent neural network to emit a distribution over tractable mathematical (...) expressions and employ a novel risk-seeking policy gradient to train the network to generate better-fitting expressions. Our algorithm outperforms several baseline methods (including Eureqa, the gold standard for symbolic regression) in its ability to exactly recover symbolic expressions on a series of benchmark problems, both with and without added noise. More broadly, our contributions include a framework that can be applied to optimize hierarchical, variable-length objects under a blackbox performance metric, with the ability to incorporate constraints in situ, and a risk-seeking policy gradient formulation that optimizes for best-case performance instead of expected performance. (shrink)

We give a historical overview of the development of almost 50 years of empirical research on the affordances in the past and in the present. Defined by James Jerome Gibson in the early development of the Ecological Approach to Perception and Action as the prime of perception and action, affordances have become a rich topic of investigation in the fields of human movement science and experimental psychology. The methodological origins of the empirical research performed on affordances can be traced back (...) to the mid 1980’s and the works of Warren (1984, 1988) and Michaels (1988). Most of the research in Ecological Psychology performed since has focused on the actualization of discretely defined actions, the perception of action boundaries, the calculation of pi-numbers, and the measurement of response times. The research efforts have resulted in advancements in the understanding of the dynamic nature of affordances, affordances in a social context and the importance of calibration for perception of affordances. Although affordances are seen as an instrumental part of the control of action most studies investigating affordances do not pay attention to the control of the action. We conclude that affordances are still primarily treated as a utility to select behaviour, which creates a conceptual barrier that hinders deeper understanding of affordances. A focus on action-boundaries has largely prevented advancement in other aspects of affordances, most notably an integrative understanding of the role of affordances in the control of action. (shrink)

Clinical trials for acute conditions such as myocardial infarction and stroke pose challenges related to informed consent due to time limitations, stress, and severe illness. Consent processes shou...

Background Informed consent procedures for large population-based cohort studies should be comprehensive and easy-to-use. This is particularly challenging when participants from different socio-economic groups and multicultural ethnic backgrounds are involved. Recently, more and more studies have tried to use multimedia in informed consent procedures. We describe the development and testing of a digital informed consent app and elaborate on whether this may contribute to a comprehensive and practical procedure to obtain informed consent for public health research. Methods In a sample (...) of parents with young children, we used a mixed method approach to study the user experience of an informed consent app and evaluate whether it can be used to adequately inform people and register their consent. Through semi-structured interviews we investigated participants’ experiences with and opinions about the app, with a special focus on comprehensibility of the content and the usability of the app. Information retention questions were asked to evaluate to what extent participants could recall key aspects of the provided study information. Results The 30 participants in this study used the app between 4 and 15 min to give their consent. Overall, they found the app well-designed, informative and easy to use. To learn more about the study for which informed consent is asked, most of the participants chose to watch the animated film, which was generally found to convey information in a clear manner. The identification process was met with mixed reactions, with some feeling it as a secure way to give consent, while for others it contradicted their view of using data anonymously. Information retention questions showed that while all participants remembered various aspects of the study, fewer than half answered all four questions satisfactorily. Conclusion Our study shows that a well-designed informed consent app can be an effective tool to inform eligible participants and to record consents. Still, some issues remain, including trust barriers towards the identification procedure and lack of information retention in some participants. When implementing consent procedures that incorporate digital formats, it may be beneficial to also invest in a complementary face-to-face recruitment approach. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 41.4 (2003) 553-554 [Access article in PDF] Ruby Blondell. The Play of Character in Plato's Dialogues. New York: Cambridge University Press, 2002. Pp. xi + 452. Cloth, $75.00. Plato's dialogues were written before audiences distinguished philosophy from literature. Recently scholars have argued that the dialogues should be read as philosophy that is literature, and no one makes the case better than Blondell does (...) in this splendid work. Her argument compels by focusing on character in the relevant senses: as the dramatis personae of the dialogues, as that which individuates them and prompts them to act in ways that affect their very souls, and as "the effects of literary characterization on the moral character of the audience" (2). Character connects the dialogues as "literature," "philosophy," and paideia.In Plato's careful delineation of the characters of his dramatis personae, Blondell finds a tension between the existence of human particularity and the search for generic types. Socrates is a prime example of the dialectical movement between particularity and its attempted transcendence. Plato's choice to write dialogues is also "an assertion of human plurality" (49) that exhibits the pathos of trying to transcend human experience. "Dramatic form... becomes a medium for exploring the limits of transcendence, and the multiple tensions—between ideal and particular, mind and body, original and image, one and many, being and becoming, divine and human, deduction and persuasion, reason and emotion—which pervade the works of Plato" (50). Blondell's discussions of how dramatic form serves epistemological and pedagogical aims in Hippias Minor, Republic, Theaetetus, Sophist, and Statesman are so rich in insight and nuance that one hesitates to suggest they could be improved upon. Still, greater emphasis on the historical and cultural contexts shared by characters, author, and audience might add to our understanding of Plato's preoccupation with these specific philosophical tensions as well as his choice to address them through dramatic form.Blondell's discussion of Theaetetus is especially good in showing how "abstract epistemological issues... play themselves out in the world of specific, particularized human beings.... [I]t is this personal dimension of epistemology—the fact that we are particular, embodied individuals—that generates most of the problems in this dialogue (especially the reliability and subjectivity of sense perception)" (252). That philosophy, epistemology, and pedagogy come to be identified with Socrates also generates problems. Can there be philosophy without Socrates? To become a philosopher, must one resemble Socrates? If philosophy cannot go on without Socrates, how can it realize its aim of transcending human particularity? If philosophy can go on without him, will its practice and pedagogy nonetheless require dialectical discussion among embodied inquirers?No character in the dialogues appears a more likely successor to Socrates than Theaetetus. He resembles Socrates in appearance and character, and Blondell notes that repeated references to the younger man's gentleness and courage, and to his training in geometry, recall nothing so much as the guardians of the Republic. Theaetetus is the right kind of interlocutor, and one that allows Plato to portray—and defend—the elenchic Socrates, who merges with the "productive" Socrates in this dialogue. Before meeting Socrates, Theaetetus's attempts at philosophy were unsuccessful because he needed someone like himself to help him realize his philosophical potential. Socrates offers himself as [End Page 553] an intellectual midwife, yet Blondell observes that, his protestations to the contrary notwithstanding, he sometimes assumes the position and privileges of a father, and at other times is identified with philosophy as the object of desire. As an intellectual parent, Socrates demonstrates his superiority to Theodorus as the orphan's guardian. That Theodorus was Protagoras's pupil suggests one line of descent for Theaetetus: Protagoras—Theodorus—Theaetetus. Socrates' invocation of Parmenides suggests another: Parmenides—Socrates—Theaetetus. Different lines of descent bring different kinds of pedagogy: passive transference from Sophist to pupil versus active learning through dialectical discussion.But there is more to being a philosopher than what is found in Socrates or Theaetetus, for the ideal philosopher as Socrates describes him lacks... (shrink)

The position advocated in the target article should be called “absurd environmentalism.” Literature showing that general intelligence is related to musical ability is not cited. Also ignored is the heritability of musical talent. Retrospective studies supporting practice over talent are incapable of showing differences in talent, because subjects are self-selected on talent. Reasons for the popularity of absurd environmentalism are discussed.

Volume 20, Issue 8, August 2020, Page W12-W13.

This paper will discuss the uncertainty of job tenure, inequality of wages in American business, and the challenges for a creating a new social and moral compact between employer and employee. I begin by arguing that business ethics scholars missed some of the disturbing trends in management thinking because they often focused on current problems in business rather than questioning some of the basic assumptions about the way businesses are managed. As Rochefoucauld observed (albeit in a different context) we were (...) overtaken by the evils of the present and I would argue, this was because we didn’t pay attention to the past. Business ethics research, like management research, is often ahistorical and hence tells only part of the story. If we don’t know how we got to a certain problem, it’s really difficult to see where the present problem and our solutions to it might lead us. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Joanne Wood LORDJIM AND THE CONSEQUENCES OF KANTIAN AUTONOMY Autonomy IS the fundamental principle of Kantian ethics. This is so because his moral system is based on the crucial idea that nothing in the world can be called "good without qualification except a good will."1 Thus a good will is good in and of itself, without regard to any possible end. For such a will, morality is categorical, (...) for only with such an imperative can moral laws be said to be laws ofcomplete freedom, and willed without regard to any other interest. Thus autonomy is a necessary condition for a good will, because any heteronomous worth a will could achieve would by definition be conditional, and would therefore violate Kant's notion of the unconditional worth of a good will. However, it is precisely this notion of the absolute worth a good will merits on its own that would seem to bear looking into: there is something intuitively wrong with Kant's assertion that even if"it should happen that, by a particularly unfortunate fate or by the niggardly provision of a stepmotherly nature, this will should be wholly lacking in power to accomplish its purpose," it would still "sparkle like a jewel in its own right, as something that had its full worth in itselP (p. 10). The idea implied in this passage, that a good will could exist somehow apart from the world and any effects achieved therein, is problematic to say the least. How could such a will be known? The metaphor ofa "sparklingjewel" is striking, but flawed: ajewel exists in the world, for all eyes to see if they know where to look, whereas a good will exists in the hearts of men. It is for this reason thatJoseph Conrad's LordJim is a fitting supplement to understanding the implications of a Kantian view of morality, for the central concern of the novel is the moral ambiguity that results from our common obscurity ofvision into ourselves and those around us. Given this 57 58Philosophy and Literature ambiguity, which Kant recognizes when he says, "even the strictest examination can never lead us entirely behind the secret incentives, for, when moral worth is in question, it is not a matter of actions which one sees but ofdieir inner principles which one does not see" (p. 23). It seems then irresponsible still to maintain that the worth ofa good will is independent of the way of the world. Since it is evident that if results or other empirical factors are invalid tojudge intentions, then the only judge capable of assessing in advance what maxim is being acted upon is the moral agent; morality becomes a matter of strictly individual conscience or reason. The moral agent thus becomes romanticized, a lone figure needing no other guidance than that which his or her own reason can provide in order to lead a truly good life. LordJim challenges just such a conception of individualist or self-sufficient morality. Due to the essential ambiguity ofwhatjim himselfis, the novel is an extremely difficult one to read. This is further complicated by the fact that, after the first four chapters, the reader is never given an impersonal view ofJim, but instead Marlow's painstaking efforts to fit together the puzzle ofJim's character: "I don't pretend I understood him. The views he let me have of himself were like those glimpses through the shifting rents in a thick fog— bits of vivid and vanishing detail, giving no connected idea of the general aspect of a country... they were no good for purposes of orientation."2 Given this cloud of uncertainty, Jim remains an enigma from beginning to end. The reader is treated to various judgments ofhim during this time from a wide range of viewpoints which Marlow perhaps pursues in an effort to shed some light on the subject, but which nonetheless leave us in darkness because they all omit one factor or another. There is no Authority in this book. The facts ofJim's case are relatively straightforward: it is the interpretation of what lies behind them, ofJim's "inner principles," which is extraordinarily complex. Jim is working as first mate on... (shrink)

Live coding is an embodied, sensorial and live technological–human relationship that is recursively iterated through sonic and visual outputs based on what we argue are kinship relations between and through bodies and technology. At the same time, and in a familiar moment of déjà vu for feminist scholars, live coding is most often discussed not in relation to the lived and sensory human–technology kinship, but in terms of fetishised code or software, output and agency. As feminist scholars have long argued, (...) emphasising and fetishising code or software, and celebrating output and agency are normatively masculine, white and Western conceptions of technology that feed into the growing valorisation of accelerationist logic whilst also negating embodied, not to mention other (non-white, Western, masculine) bodies, expertise or histories per se. In this article, we want to redress this by drawing on our empirical material on live coding to focus on human–technology kinship and, in so doing, think about failure, slowness and embodiment and about human–technology relations that are more akin to what Alison Kafer (drawing on the work of Donna Haraway) has termed ‘becoming with’ or ‘making kin’. This, we argue, has the potential to shift the focus from the potentialities of technologies on or through the body, towards the generative capacities of mediation (including failure), which are caught up in lived experiences. The question is not only about how the relations of bodies and technologies are played out in certain circumstances but about what might be played out if we reconceptualise these relations in these terms. (shrink)

About half of Americans who live past age 65 will develop a long-lasting severe disability associated with aging and will require long-term services and supports for an average of two years. This eventuality is surprising to most Americans, despite the increasingly common experience of neighbors and family needing long-term assistance with self-care and daily tasks. Many people believe that serious disability simply won't happen to them or their family, and they avoid making plans to deal with the caregiving or financing (...) challenges associated with long-term disability. Of course, wealthy people can pay for the services they need, provided they can identify and... (shrink)

There is little empirical evidence showing a direct link between a capacity for statistical learning (SL) and proficiency with natural language. Moreover, discussion of the role of SL in language acquisition has seldom focused on literacy development. Our study addressed these issues by investigating the relationship between SL and reading ability in typically developing children and healthy adults. We tested SL using visually presented stimuli within a triplet learning paradigm and examined reading ability by administering the Wide Range Achievement Test (...) (WRAT-4; Wilkinson & Robertson, 2006). A total of 38 typically developing children (mean age of 9;5 years, range 6;4–12;5) and 37 healthy adults (mean age of 21 years, range 18–34) were assessed. In children, SL was significantly related to reading ability. Importantly, this relationship was independent of grade and also age. The adult data, too, revealed that SL was significantly related to reading ability. A regression analysis of the combined child and adult data revealed that SL accounted for a unique amount of variance in reading ability, after age and attention had been taken into consideration. For the first time, this study provides empirical evidence that a capacity for more effective SL is related to higher reading ability in the general population. (shrink)

The scope of the issues -- The moral relationship between leaders and followers -- The morality of leaders : motives and deeds -- Puzzles and perils of transformational leadership.

Understanding the nature of science has long been a desired outcome of science education, despite ongoing disagreements about the content, structure, and focus of NOS expectations. Addressing the concern that teachers likely focus only on student learning expectations appearing in standards documents, this study examines the current state of NOS in science education standards documents from nine diverse countries to determine the overt NOS learning expectations that appeared, NOS statements provided near those learning expectations, but not identified as learning outcomes, (...) and NOS statements found in ancillary text. Findings indicate that NOS ideas rarely occur as expectations for student learning and are far more commonly found in ancillary material. Moreover, consensus was not apparent in the overt learning outcomes for students. Given the well-documented poor state of NOS instruction and the consistent lack of NOS appearing in published curriculum materials, the NOS standards appearing in nearly all documents analyzed are unlikely to provide sufficient conceptual or pedagogical support for NOS to be accurately interpreted or translated into meaningful experiences for students. (shrink)

The business and human rights movement shares several goals with the Benefit Corporation movement: corporations respecting human rights; maintaining a “wide aperture” so that all impacts of a company on people and communities are addressed; and creating rigorous standards of conduct and means of accountability. This paper argues that nonetheless the movements are traveling along parallel tracks and thus missing an opportunity for mutual learning that can improve their effectiveness. The BHR movement can look to B Corps for concrete examples (...) of viable companies that value human rights intrinsically and not just where there is a “business case” to do so. The B Impact Assessment, the B Corp certification tool, can better ensure that B Corps are in fact respecting human rights by adopting BHR standards. And both movements must give greater consideration to the potential contradiction between unlimited scaling—a key goal of B Corps—and the ability of large multinational corporations to respect human rights. (shrink)

The frontispiece of Hobbes's Leviathan is justly renowned as a powerful visual advertisement for his political philosophy. Consequently, its rich imagery has been the subject of extensive scholarly commentary. Surprisingly, then, its gendered dimensions have received relatively limited attention. This essay explores this neglected facet of the frontispiece. I argue that the image initially appears to present a hypermasculine sovereign. However, upon closer inspection, and considered alongside Hobbes's economic theory, it yields to a reading of the sovereign as an ambiguously (...) gendered figure. Reading the frontispiece through the prism of gender and the economy reveals not a static image of unwavering male power but rather one of an equivocally-sexed creature teeming with life, contradictions, and complexities worthy of continued examination. (shrink)

Many commentators have contrasted the way that sociability is theorized in the writings of Mary Astell and Damaris Masham, emphasizing the extent to which Masham is more interested in embodied, worldly existence. I argue, by contrast, that Astell's own interest in imagining a constitutively relational individual emerges once we pay attention to her use of religious texts and tropes. To explore the relevance of Astell's Christianity, I emphasize both how Astell's Christianity shapes her view of the individual's relation to society (...) and how Masham's contrasting views can be analyzed through the lens of her charge that Astell is an “enthusiast.” In late seventeenth-century England, “enthusiasm” was a term of abuse that, commentators have recently argued, could function polemically to dismiss those deemed either excessively social or antisocial. By accusing Astell of enthusiasm, I claim, Masham seeks to marginalize the relational self that Astell imagines and to promote a more instrumental view of social ties. I suggest some aspects of Astell's thought that may have struck contemporaries as “enthusiastic” and contrast her vision of the self with Masham's more hedonistic subject. I conclude that, although each woman differently configures the relation between self and society, they share a desire to imagine autonomy within a relational framework. (shrink)

For the successful achievement of evidence-based practice, clinicians, managers and purchasers need evidence on whether a particular intervention works and ways to judge the appropriateness of the outcome criteria and measures used. Guidance is needed on what outcome measure to use, especially within routine clinical care settings. Beginning with a re-clarification of the difference between a health status and an outcome measure, the paper presents an evaluative checklist for use by clinical audit and research staff to review outcome measures for (...) use in routine care settings. Central features include the user-centredness of the measure, its psychometric properties, feasibility of use and utility. The applicability of the checklist is illustrated for outcome measurement in diabetes and stroke care. A modified form of the checklist is proposed for use by the busy clinician as an aid to the critical review of research papers within the context of evidence-based practice and to aid health care practitioners' choice of which outcome measure(s) to use within routine clinical care. (shrink)

In this paper I argue that a greater understanding of the part of ethics in leadership will improve leadership studies. Debates over thedefinition of leadership are really debates over what researchers think constitutes good leadership. The ultimate question is not “What is leadership?” but “What is good leadership?” The word good is refers to both ethics and competence. Research into leadership ethics would explore the ethical issues of current leadership research, serve as a critical study of the field, analyze and (...) expand normative theories of leadership, and develop new theories, research questions and ways of thinking about leadership. (shrink)

In this paper I argue that a greater understanding of the part of ethics in leadership will improve leadership studies. Debates over the definition of leadership are really debates over what researchers think constitutes good leadership. The ultimate question is not "What is leadership?" but "What is good leadership?" The word good is refers to both ethics and competence. Research into leadership ethics would explore the ethical issues of current leadership research, serve as a critical study of the field, analyze (...) and expand normative theories of leadership, and develop new theories, research questions and ways of thinking about leadership. (shrink)

Despite his producing voluminous writings beyond Utopia, scholarly consensus seems to be that if we want to understand the political thought of Thomas More, we must turn to this ‘little book’. This approach, however, has yielded little consensus about how to categorise More as a political thinker, as Utopia is notoriously and intentionally enigmatic. This article attempts to generate a portrait of More as a political thinker by going beyond an investigation of Utopia alone and taking into consideration those texts (...) often overlooked or rejected by scholars, primarily his polemical and religious writings. Doing so provides an outline of More as a thinker concerned with themes of natural and artificial inequality, popular authority and representation and, at the least, justifies the exercise of reading More’s work beyond Utopia. (shrink)

In today's business world, ethics is not simply a peripheral concern of executive boards or a set of supposed constraints on free enterprise. Ethics stands at the very core of our working lives and of society as a whole, defining the public image of the business community and the ways in which individual companies and people behave. What people do at work--and how they think about work--determines their attitudes and aspirations, affecting and even structuring their personal lives and habits. Working (...) from this premise, Honest Work: A Business Ethics Reader provides a practical overview of business ethics that concentrates on the ethical problems and dilemmas students are most likely to face in their prospective work environments. Classic and recent articles and cases cover a broad spectrum of issues and concerns--from private ethical dilemmas to larger considerations of corporate values--and propose guidelines for thinking about the business world in a moral context. Each reading and case is followed by lively questions for discussion. Offering a welcome alternative to the impersonal tone of most business ethics texts, the editors address students in an appealing and conversational manner. They provide engaging chapter introductions that include personal narratives and also present the ideas of great philosophers in a unique way--as emails. Ideal for introductory undergraduate and MBA courses in business ethics, Honest Work: A Business Ethics Reader can be read as a coherent narrative but also offers instructors great flexibility, as its various chapters, readings, and cases can be pursued in almost any order. A Companion Website featuring chapter objectives and summaries, study questions, self-tests, and off-site links of interest will soon be available. An Instructor's Manual with Test Bank is available to adopters. (shrink)

This paper discusses a deterministic model of the spread of an infectious disease in a closed population that was proposed byKermack &McKendrick . The mathematical assumptions on which the model is based are listed and criticized. The ‘threshold theorem’ according to which an epidemic develops if, and only if, the initial population density exceeds a certain value determined by the parameters of the model, is discussed. It is shown that the theorem is not true. A weaker result is stated and (...) proved.A new simplified version of the model is discussed. In this model it is assumed that an infected individual becomes infectious after a constant time and that it will removed after a constant time. Numerical simulations of this model show that the form of the fluctuations in the number of diseased individuals depends on the values of the parameters. The number of infectious individuals may oscillate up and down under certain circumstances. Necessary conditions for the number of infectious individuals to rise above previous levels are stated and proved. (shrink)

More than three billion users are currently on one of Meta’s online platforms with Facebook being still their most prominent social media service. It is well known that Facebook has designed a highly immersive social media service with the aim to prolong online time of its users, as this results in more digital footprints to be studied and monetized. In this context, it is debated if social media platforms can elicit addictive behaviors. In the present work, we demonstrate in N (...) = 1,094 users that it is possible to predict from digital footprints of the Facebook users their self-reported addictive tendencies toward social media by applying machine-learning strategies. More specifically, we analyzed the predictive power of a set of models based on different sets of features extracted from digital traces, namely posting activity, language use, and page Likes. To maximize the predictive power of the models, we used an ensemble of linear and non-linear prediction algorithms. This work showed also sufficient accuracy rates in distinguishing between disordered and non-disordered social media users. In sum, individual differences in tendencies toward “social networks use disorder” can be inferred from digital traces left on the social media platform Facebook. Please note that the present work is limited by its cross-sectional design. (shrink)

This study examines how authentic leadership influences team performance via the mediating mechanism of team reflexivity. Adopting a self-regulatory perspective, we propose that authentic leadership will predict the specific team regulatory process of reflexivity, which in turn will be associated with two outcomes of team performance, effectiveness and productivity. Using survey data from 53 teams in three organizations in the United Kingdom and Greece and controlling for collective trust, we found support for our stated hypotheses with the results indicating a (...) significant fully mediated relationship. As predicted the self-regulatory behaviors inherent in the process of authentic leadership served to collectively shape team behavior, manifesting in the process of team reflexivity, which, in turn, positively predicted team performance. We conclude with a discussion of how this study extends theoretical understanding of authentic leadership in relation to teamwork and delineate several practical implications for leaders and organizations. (shrink)