Sporadic efforts have been made to introduce computational thinking methods into K-12 education in Palestine, but these have been held back by the challenging educational environment. However, a recent in-service training initiative, funded and organized by the Ministry or Education of Palestine, constitutes a significant effort to embed computational thinking in K-12 practice. The middle school teachers who participated in the training course were invited to participate in the present study, and 38 did so. A qualitative approach involving both interviews (...) with teachers and classroom observations was used in data collection. All the teachers agreed to be observed in their classrooms, while 20 of the 38 also agreed to participate in the interviews. The findings showed that teachers of a range of topics, including social sciences and languages, employed computational thinking skills in teaching their students, but they were confronted by a number of challenges, including technical infrastructure and support, and a lack of time to prepare CT classes and space in the curriculum to deliver them. The results indicate that the most appropriate action to support teachers’ delivery of CT would be to provide peer exchanges and expert coaching in the integration of CT in the curriculum. (shrink)

Open peer commentary on the article “Heterarchical Reflexive Conversational Teaching and Learning as a Vehicle for Ethical Engineering Curriculum Design” by Philip Baron. Upshot: To work with institutional curricula, it is necessary to adopt practices that conflict with a radical constructivist philosophy. This conflict can generate contradictions that are often left uninspected, and which are particularly hard to disentangle in a post-colonial society.

What are ‘gay genes’ and are they real? This article looks at key research into these hypothesized gay genes, made possible, in part, by the Human Genome Project. I argue that the complexity of both genetics and human sexuality demands a truly critical approach: one that takes into account feminist epistemologies of science and queer approaches to the body, while putting into conversation resources from agential realism and critical realism. This approach is able to maintain the agential complexity of genetic (...) materiality, while also critically challenging the seemingly stable relationships between sex, gender and sexuality. (shrink)

Evidence suggests that psychedelics bring about their therapeutic outcomes in part through the subjective or qualitative effects they engender and how the individual interprets the resulting experiences. However, psychedelics are contraindicated for individuals who have been diagnosed with certain mental illnesses, on the grounds that these subjective effects may be disturbing or otherwise counter-therapeutic. Substantial resources are therefore currently being devoted to creating psychedelic substances that produce many of the same biological changes as psychedelics, but without their characteristic subjective effects. (...) In this article, we consider ethical issues arising from the prospect of such potential “nonsubjective” psychedelics. We are broadly supportive of efforts to produce such substances for both scientific and clinical reasons. However, we argue that such nonsubjective psychedelics should be reserved for those special cases in which the subjective effects of psychedelics are specifically contraindicated, whereas classic psychedelics that affect subjective experience should be considered the default and standard of care. After reviewing evidence regarding the subjective effects of psychedelics, we raise a number of ethical concerns around the prospect of withholding such typically positive, meaningful, and therapeutic experiences from most patients. (shrink)

Machine learning algorithms may radically improve our ability to diagnose and treat disease. For moral, legal, and scientific reasons, it is essential that doctors and patients be able to understand and explain the predictions of these models. Scalable, customisable, and ethical solutions can be achieved by working together with relevant stakeholders, including patients, data scientists, and policy makers.

Current psychological theories of human causal learning and judgment focus primarily on long-run predictions: two by estimating parameters of a causal Bayes nets, and a third through structural learning. This paper focuses on people’s short-run behavior by examining dynamical versions of these three theories, and comparing their predictions to a real-world dataset.

Mental disorders such as depression and anxiety are increasingly common. Yet there are too few specialists to offer help to everyone, and negative attitudes to psychological problems and their treatment discourage people from seeking it. As a result, many people never receive help for these problems. The Oxford Guide to Low Intensity CBT Interventions marks a turning point in the delivery of psychological treatments for people with depression and anxiety. Until recently, the only form of psychological intervention available for patients (...) with depression and anxiety was traditional one-to-one 60 minute session therapy - usually with private practitioners for those patients who could afford it. Now Low Intensity CBT Interventions are starting to revolutionize mental health care by providing cost effective psychological therapies which can reach the vast numbers of people with depression and anxiety who did not previously have access to effective psychological treatment. The Oxford Guide to Low Intensity CBT Interventions is the first book to provide a comprehensive guide to Low Intensity CBT interventions. It brings together researchers and clinicians from around the world who have led the way in developing evidence-based low intensity CBT treatments. It charts the plethora of new ways that evidence-based low intensity CBT can be delivered: for instance, guided self-help, groups, advice clinics, brief GP interventions, internet-based or book-based treatment and prevention programs, with supported provided by phone, email, internet, sms or face-to-face. These new treatments require new forms of service delivery, new ways of communicating, new forms of training and supervision, and the development of new workforces. They involve changing systems and routine practice, and adapting interventions to particular community contexts. The Oxford Guide to Low Intensity CBT Interventions is a state-of-the-art handbook, providing low intensity practitioners, supervisors, managers commissioners of services and politicians with a practical, easy-to-read guide - indispensible reading for those who wish to understand and anticipate future directions in health service provision and to broaden access to cost-effective evidence-based psychological therapies. (shrink)

People are adept at inferring novel causal relations, even from only a few observations. Prior knowledge about the probability of encountering causal relations of various types and the nature of the mechanisms relating causes and effects plays a crucial role in these inferences. We test a formal account of how this knowledge can be used and acquired, based on analyzing causal induction as Bayesian inference. Five studies explored the predictions of this account with adults and 4-year-olds, using tasks in which (...) participants learned about the causal properties of a set of objects. The studies varied the two factors that our Bayesian approach predicted should be relevant to causal induction: the prior probability with which causal relations exist, and the assumption of a deterministic or a probabilistic relation between cause and effect. Adults’ judgments (Experiments 1, 2, and 4) were in close correspondence with the quantitative predictions of the model, and children’s judgments (Experiments 3 and 5) agreed qualitatively with this account. (shrink)

Metabolic Syndrome is a cluster of risk factors (including obesity, hypertension and insulin resistance), which is associated with late‐onset diabetes and coronary heart disease. Elevated levels of the protease inhibitor PAI‐1 are well‐known molecular markers of the Metabolic Syndrome. Here, however, we present a hypothesis that PAI‐1 acts as a causative factor in the development of Metabolic Syndrome and its clinical sequelae. We propose that PAI‐1 inhibits the activity of members of the proprotein convertase (PC) class of serine proteases and (...) that this underlies, at a molecular level, many of the other features of the Metabolic Syndrome cluster. BioEssays 28: 629–641, 2006. © 2006 Wiley Periodicals, Inc. (shrink)

The central conflicts of the world today are closely related to cultural, traditional, and religious differences between nations. As we move to a globalized world, these differences often become magnified, entrenched, and the cause of bloody conflict. Growing out of a conference of distinguished scholars from the Middle East, Europe, and the United States, this volume is a singular contribution to mutual understanding and cooperative efforts on behalf of peace. The term paideia, drawn from Greek philosophy, has to do with (...) responsible education for citizenship as a necessary precondition for effective democracy. (shrink)

The central conflicts of the world today are closely related to cultural, traditional, and religious differences between nations. As we move to a globalized world, these differences often become magnified, entrenched, and the cause of bloody conflict. Growing out of a conference of distinguished scholars from the Middle East, Europe, and the United States, this volume is a singular contribution to mutual understanding and cooperative efforts on behalf of peace. The term paideia, drawn from Greek philosophy, has to do with (...) responsible education for citizenship as a necessary precondition for effective democracy. (shrink)

Titles and abstracts for the Pitt-London Workshop in the Philosophy of Biology and Neuroscience: September 2001.

This article presents results from a multidisciplinary research project on the integration and transfer of language knowledge into robots as an empirical paradigm for the study of language development in both humans and humanoid robots. Within the framework of human linguistic and cognitive development, we focus on how three central types of learning interact and co-develop: individual learning about one's own embodiment and the environment, social learning (learning from others), and learning of linguistic capability. Our primary concern is how these (...) capabilities can scaffold each other's development in a continuous feedback cycle as their interactions yield increasingly sophisticated competencies in the agent's capacity to interact with others and manipulate its world. Experimental results are summarized in relation to milestones in human linguistic and cognitive development and show that the mutual scaffolding of social learning, individual learning, and linguistic capabilities creates the context, conditions, and requisites for learning in each domain. Challenges and insights identified as a result of this research program are discussed with regard to possible and actual contributions to cognitive science and language ontogeny. In conclusion, directions for future work are suggested that continue to develop this approach toward an integrated framework for understanding these mutually scaffolding processes as a basis for language development in humans and robots. (shrink)

We study human performance in two classical NP‐hard optimization problems: Set Cover and Maximum Coverage. We suggest that Set Cover and Max Coverage are related to means selection problems that arise in human problem‐solving and in pursuing multiple goals: The relationship between goals and means is expressed as a bipartite graph where edges between means and goals indicate which means can be used to achieve which goals. While these problems are believed to be computationally intractable in general, they become more (...) tractable when the structure of the network resembles a tree. Thus, our main prediction is that people should perform better with goal systems that are more tree‐like. We report three behavioral experiments which confirm this prediction. Our results suggest that combinatorial parameters that are instrumental to algorithm design can also be useful for understanding when and why people struggle to choose between multiple means to achieve multiple goals. (shrink)

In accordance with ethical principles and standards, researchers conducting studies with children are expected to seek assent and respect their dissent from participation. Little attention has been given to assent and dissent in research with toddlers, who have limited cognitive and emotional capabilities. We discuss research with toddlers in the context of assent and dissent and propose guidelines to ensure that research with toddlers still adheres to ethical principles. These guidelines include designing engaging studies, monitoring refusal and distress, and partnering (...) with parents. Research with toddlers requires flexibility and creativity to respect toddlers in the context of their developmental capabilities. (shrink)

Throughout his career David Hull has sought to bring the philosophy of science into closer contact with science and especially with biological science (Hull 1969, 1997b). This effort has taken many forms. Sometimes it has meant ‘either explaining basic biology to philosophers or explaining basic philosophy to biologists’ (Hull 1996, p. 77). The first of these tasks, simple as it sounds, has been responsible for revolutionary changes. It is well known that traditional philosophy of science, modeled as it was (...) on theoretical physics, proved inadequate when philosophers turned their attention to biological science. Biological examples have driven major revisions of accounts of reduction (Hull 1974; Schaffner 1993, Ch. 9), laws of nature (Beatty et al. 1997), theories (Lloyd 1988) and natural kinds (Wilson 1999, Part III). Nor is explaining basic philosophy to biologists a task to be looked down upon. It is useful, not because philosophy has all the answers, but because scientists must think about how to do science, that is doing philosophy of science and scientists frequently reinvent philosophical views with known flaws. Early in his career Hull found biological systematists in the grip of a crude operationalism about scientific concepts and said so in the pages of Systematic Zoology (Hull 1968). For the next thirty years, as biologists debated the nature of species and the correct principles of classification, Hull added a philosophical note at the same congresses and in the same journals (Hull 1970, 1976, 1980, 1997a, 1999). (shrink)

This article considers three recent attempts by David Armstrong, Ross Cameron, and Jonathan Schaffer to provide truthmakers for negative existential truths. It is argued that none of the proposed truthmakers are up to the task of making any negative existential truth true and, it will turn out, for the same reason.

David Papineau (2003; 2005) has discussed the relationship between social learning and the family of postulated evolutionary processes that includes ‘organic selection’, ‘coincident selection’, ‘autonomisation’, ‘the Baldwin effect’ and ‘genetic assimilation’. In all these processes a trait which initially develops in the members of a population as a result of some interaction with the environment comes to develop without that interaction in their descendants. It is uncontroversial that the development of an identical phenotypic trait might depend on an interaction (...) with the environment in one population and not in another. For example, some species of passerine songbirds require exposure to species-typical songs in order to reproduce those songs whilst others do not. Hence we can envisage a species beginning with one type of developmental pathway and evolving the other type. If, however, the successive evolution of these two developmental pathways were a mere coincidence, selection first favoring the ability to acquire the trait and later, quite independently, favoring the ability to develop it autonomously, then this would not be a distinctive kind of evolutionary process, but merely two standard instances of natural selection. George Gaylord Simpson pointed this out in the paper that gave us the term ‘Baldwin effect’ (Simpson, 1953). The real interest of the Baldwin effect and its relatives lies in the mechanisms which might link the evolution of the two developmental pathways, so that acquiring the trait through interaction with the environment makes it more likely that later generations will evolve the ability to acquire the same trait without that interaction. (shrink)

Evolutionary Psychology links the methodology for cognitive science associated with the late David Marr to evolutionary theory. The mind is conceived as a bundle of modules which can be described at three theoretical levels. Each module represents an adaptation to some specific ecological problem. Evolutionary psychologists try to derive the highest level of description using a heuristic method called 'adaptive thinking'. This paper questions the value of the official EP methodology and reasserts the value of the earlier methodology associated (...) with classical ethology, in which the structural and comparative analysis of the products of evolution precedes the investigation of their origin by natural selection. The adaptive heuristic is shown to be unhelpful. It tends to restrict psychology to work designed to confirm our preconceptions. It is argued that evolutionary psychology must be retrodictive and explanatory, rather than predictive, and that a powerful method for testing postulated claims about the adaptive origin of traits is available in modern versions of the comparative method. Some arguments for the inapplicability of the comparative method to human psychoevolution are examined and shown to be specious. These various points are exemplified in evolutionary work on emotions. (shrink)

We criticise Shepard's notions of “invariance” and “universality,” and the incorporation of Shepard's work on inference into the general framework of his paper. We then criticise Tenenbaum and Griffiths' account of Shepard (1987b), including the attributed likelihood function, and the assumption of “weak sampling.” Finally, we endorse Barlow's suggestion that minimum message length (MML) theory has useful things to say about the Bayesian inference problems discussed by Shepard and Tenenbaum and Griffiths. [Barlow; Shepard; Tenenbaum & Griffiths].

Authorship has proven a magnetic topic for literary studies and is now identified as an index of the current state of literary history and theory. The significance of this topic stems from a characteristic that literary criticism shared with the other human sciences: its drive to adopt a reflexive and self-critical posture towards its own central objects and concepts. By reflecting on authorship, criticism aspires not just to describe a literary phenomenon; it also wishes to bring to light the conditions (...) that make this phenomenon possible and thinkable.At the heart of recent studies of authorship, no matter how historical their aspiration, we find a certain quasi-philosophical dialectic or play between authorship and its material conditions, between the author as an exemplary consciousness and the unconscious determinations that bring this consciousness into being and speak through it. The thematic name for this play is the ‘formation of the subject.’. Our purpose is to provide a historical and theoretical argument against this conception of authorship and to outline an alternative approach. David Saunders and Ian Hunter teach in the Division of the Humanities, Griffith University, in Brisbane, Australia. Saunders is the author of Law and Authorship , and is coauthor with Hunter and Dugald Williamson of Book Sex: Obscenity Law and the Policing of Pornography . Hunter is the author of Culture and Government: The Emergence of Literary Education . His current project is a study of aesthetics as an ethos or way of life. (shrink)

The decoherent histories formalism, developed by Griffiths, Gell-Mann, and Hartle (in Phys. Rev. A 76:022104, 2007; arXiv:1106.0767v3 [quant-ph], 2011; Consistent Quantum Theory, Cambridge University Press, 2003; arXiv:gr-qc/9304006v2, 1992) is a general framework in which to formulate a timeless, ‘generalised’ quantum theory and extract predictions from it. Recent advances in spin foam models allow for loop gravity to be cast in this framework. In this paper, I propose a decoherence functional for loop gravity and interpret existing results (Bianchi et al. (...) in Phys. Rev. D 83:104015, 2011; Phys. Rev. D 82:084035, 2010) as showing that coarse grained histories follow quasiclassical trajectories in the appropriate limit. (shrink)