Much problem solving and learning research in math and science has focused on formal representations. Recently researchers have documented the use of unschooled strategies for solving daily problems -- informal strategies which can be as effective, and sometimes as sophisticated, as school-taught formalisms. Our research focuses on how formal and informal strategies interact in the process of doing and learning mathematics. We found that combining informal and formal strategies is more effective than single strategies. We provide a theoretical account of (...) this multiple strategy effect and have begun to formulate this theory in an ACT-R computer model. We show why students may reach common impasses in the use of written algebra, and how subsequent or concurrent use of informal strategies leads to better problem-solving performance. Formal strategies facilitate computation because of their abstract and syntactic nature; however, abstraction can lead to nonsensical interpretations and conceptual errors. Reapplying the formal strategy will not repair such errors; switching to an informal one may. We explain the multiple strategy effect as a complementary relationship between the computational efficiency of formal strategies and the sense-making function of informal strategies. (shrink)

Cognitive science is experiencing a pragmatic turn away from the traditional representation-centered framework toward a view that focuses on understanding cognition as "enactive." This enactive view holds that cognition does not produce models of the world but rather subserves action as it is grounded in sensorimotor skills. In this volume, experts from cognitive science, neuroscience, psychology, robotics, and philosophy of mind assess the foundations and implications of a novel action-oriented view of cognition. Their contributions and supporting experimental evidence show that (...) an enactive approach to cognitive science enables strong conceptual advances, and the chapters explore key concepts for this new model of cognition. The contributors discuss the implications of an enactive approach for cognitive development; action-oriented models of cognitive processing; action-oriented understandings of consciousness and experience; and the accompanying paradigm shifts in the fields of philosophy, brain science, robotics, and psychology. ContributorsMoshe Bar, Lawrence W. Barsalov, Olaf Blanke, Jeannette Bohg, Martin V. Butz, Peter F. Dominey, Andreas K. Engel, Judith M. Ford, Karl J. Friston, Chris D. Frith, Shaun Gallagher, Antonia Hamilton, Tobias Heed, Cecilia Heyes, Elisabeth Hill, Matej Hoffmann, Jakob Hohwy, Bernhard Hommel, Atsushi Iriki, Pierre Jacob, Henrik Jörntell, Jürgen Jost, James Kilner, Günther Knoblich, Peter König, Danica Kragic, Miriam Kyselo, Alexander Maye, Marek McGann, Richard Menary, Thomas Metzinger, Ezequiel Morsella, Saskia Nagel, Kevin J. O'Regan, Pierre-Yves Oudeyer, Giovanni Pezzulo, Tony J. Prescott, Wolfgang Prinz, Friedemann Pulvermüller, Robert Rupert, Marti Sanchez-Fibla, Andrew Schwartz, Anil K. Seth, Vicky Southgate, Antonella Tramacere, John K. Tsotsos, Paul F. M. J. Verschure, Gabriella Vigliocco, Gottfried Vosgerau. (shrink)

I examine whether or not it is apt to attribute knowledge to groups of scientists. I argue that though research teams can be aptly described as having knowledge, communities of scientists identified with research fields, and the scientific community as a whole are not capable of knowing. Scientists involved in research teams are dependent on each other, and are organized in a manner to advance a goal. Such teams also adopt views that may not be identical to the views of (...) the individual members of the group. (shrink)

My aim is to evaluate a new realist strategy for addressing the pessimistic induction, Ludwig Fahrbach’s (Synthese 180:139–155, 2011) appeal to the exponential growth of science. Fahrbach aims to show that, given the exponential growth of science, the history of science supports realism. I argue that Fahrbach is mistaken. I aim to show that earlier generations of scientists could construct a similar argument, but one that aims to show that the theories that they accepted are likely true. The problem with (...) this is that from our perspective on the history of science we know their argument is flawed. Consequently, we should not be impressed or persuaded by Fahrbach’s argument. Fahrbach has failed to identify a difference that matters between today’s theories and past theories. But realists need to find such a difference if they are to undermine the pessimistic induction. (shrink)

This paper argues that the Qur’an must be understood as an anti-capitalist text. The Qur’an contains many verses that declare unequivocally the accumulation of wealth and monopoly ownership, either by the one person or one group, to be highly problematic ethically and socially. Qur’anic verses attend frequently to the issues of ownership and the accumulation of wealth. In the first years of the revelation and particularly before the Prophet’s migration to Mecca, the Qur’an discusses frequently the issue of ownership. Before (...) the migration, the Qur’an taught mainly about the exploitative nature of the existing economic system while, in the post-migration era, the Qur’an laid the foundation of a new system in which the accumulation of wealth and ownership monopoly are central causes of ethical and social degeneration. The Qur’an regards the redistribution of wealth to be both a religious duty and an ethical obligation. (shrink)

Die Teilhabe an der lateinischen res publica litterarum der frühneuzeitlichen Fakultäten und Universitäten wurde mittels gemeinsamer literarischer Ausdrucksformen reguliert - zuweilen in Gestalt feingeistiger philologischer Kontroverse, zuweilen als wüste Polemik oder tosender Jubel. In Fallstudien zu Humanisten aus drei Jahrhunderten geht der Band der Frage nach, wie kollegiale Beziehungen literarisch inszeniert und innerhalb der Gelehrtengemeinschaft instrumentalisiert wurden. Diskursregeln und Kommunikationsbedingungen kommen dabei ebenso zur Sprache wie die Anwendung literarischer Modelle aus antiker und nachantiker Invektive, Satire und Panegyrik.

Erasmus was one of the most widely read and controversial authors of the early modern period, inspiring a broad range of reader reactions. The present volume addresses various aspects of Erasmus's reception, including how the author's name was sometimes used to bolster decidedly "un-Erasmian" ideals.

Current advances of modern medicine, in our diagnostic procedures and therapeutic options, are rapidly progressing. We often concentrate, however, merely on scientific aspects of medical problems rather than including a patient-centred approach and ethical aspects of a disease. Important for a healthy balance between specialism and integrative medicine are those discussed in the article. Suchare a critical appraisal of medical technology, a re-evaluation of patients and their illness, our detailed history-taking and thorough clinical examination and a better understanding and approach (...) to drug diversities. Drug effects and interactions as well as psychosocial aspects of patients and their lives should be fully acknowledged. These themes of daily medical activities as mentioned above are suggested tobe further enriched by macroethics at the beginning and end of life. (shrink)

[1] Elul. Yamim Noraʼim. Sukot -- [2] Pesaḥ. Shevuʻot. Galut u-geʼulot. Ḥanukah. Purim.

The anti-realist argument from underconsideration focuses on the fact that, when scientists evaluate theories, they only ever consider a subset of the theories that can account for the available data. As a result, when scientists judge one theory to be superior to competitor theories, they are not warranted in drawing the conclusion that the superior theory is likely true with respect to what it says about unobservable entities and processes. I defend the argument from underconsideration from the objections of Peter (...) Lipton. I argue that the inconsistency that Lipton claims to find in the argument vanishes once we understand what the anti-realist means when she claims that scientists are reliable. I also argue that collapsing the distinction between relative and absolute evaluations, as Lipton recommends, has its costs. Finally, I briefly examine Richard Boyd's influential defence of realism. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Spiritual Experience and PsychopathologyMike Jackson and K. W. M. Fulford (bio)AbstractA recent study of the relationship between spiritual experience and psychopathology (reported in detail elsewhere) suggested that psychotic phenomena could occur in the context of spiritual experiences rather than mental illness. In the present paper, this finding is illustrated with three detailed case histories. Its implications are then explored for psychopathology, for psychiatric classification, and for our understanding of (...) the concept of mental illness. It is argued that pathological and spiritual psychotic phenomena cannot be distinguished by 1) form and content alone (as in traditional psychopathology), 2) by their relationship either with other symptoms or with pathological causes (as in psychiatric classification), or 3) by reference to the descriptive criteria of mental illness implied by the “medical” model. The distinction is shown to depend, rather, on the way in which psychotic phenomena themselves are embedded in the values and beliefs of the person concerned. This in turn is shown to have implications for diagnosis (it shows the need for clinicians to attend to the values and beliefs of individual patients), for treatment (it points to a cognitive problem-solving model), and for research in psychopathology (especially as related to the emerging sciences of dynamic brain imaging and cognitive neuroscience).Keywordsfirst rank symptoms, schizophrenia, delusion, hallucination, thought disorder, religious experience, mystical experienceIntroductionThis paper explores some of the conceptual and practical implications of the finding that phenomena which in a medical context would probably be diagnosed as psychotic symptoms, may occur in the context of non-pathological, and indeed essentially benign, spiritual experiences.The existence of non-pathological psychotic experiences of this kind (we will call them “psychotic phenomena” as distinct from “psychotic symptoms”—see also Endnote 1, terminology) was a key finding in a study carried out by one of us (MJ) at the Alister Hardy Research Centre (AHRC) in Oxford. Details are given elsewhere both of the overall empirical findings of the study, including the relationship between spiritual experience and personality variables, and of a hypothetical cognitive problem-solving model of these phenomena (Jackson 1991, and forthcoming a and b). In the present paper, 1) the background to the study is described briefly in relation to earlier work on the possible links between spiritual experience and psychopathology; 2) some of the psychotic phenomena identified are illustrated with three detailed case histories; 3) the significance of these phenomena is reviewed for our understanding respectively of psychopathology, of diagnostic syndromes, and of the concept of mental illness; and 4) some of the practical implications of the study for clinical work and research in psychiatry are indicated.BackgroundIt has long been recognized that there are similarities between spiritual and psychotic experiences. [End Page 41] William James (1902), for example, argued that “in delusional insanity, paranoia as they sometimes call it, we may have a kind of diabolical mysticism, a sort of religious mysticism turned upside down” (426). Other commentators have noted a wide variety of phenomena, such as time distortion, synesthesias, loss of self-object boundaries and the transition from a state of conflict and anxiety to one of sudden “understanding,” all of which are reported in both spiritual and psychotic experiences (Buckley 1981; Watson 1982; Wapnick 1969; and Wootton and Allen 1983).Yet the similarities notwithstanding, the distinction between these two kinds of experience can be crucially important. Spiritual experiences, whether welcome or unwelcome, and whether or not they are psychotic in form, have nothing (directly) to do with medicine (Fulford 1996a). It would be quite wrong, then, to “treat” spiritual psychotic experiences with neuroleptic drugs, just as it is quite wrong to “treat” political dissidents as though they were ill (Fulford, Smirnoff and Snow, 1993). Pathological psychotic experiences, on the other hand, or psychotic symptoms, are by definition a proper object of medical treatment, sometimes even against the wishes of the person concerned. Hence it would be both negligent and, as Wing (1978) put it, morally “repellent,” to leave untreated someone who is genuinely ill (244).Given how much turns on the distinction between spiritual experience and psychopathology, it is perhaps not surprising that scholarly discussion of the relationship between them has at times... (shrink)

The covariant Klein-Gordon equation requires twice the boundary conditions of the Schrödinger equation and does not have an accepted single-particle interpretation. Instead of interpreting its solution as a probability wave determined by an initial boundary condition, this paper considers the possibility that the solutions are determined by both an initial and a final boundary condition. By constructing an invariant joint probability distribution from the size of the solution space, it is shown that the usual measurement probabilities can nearly be recovered (...) in the non-relativistic limit, provided that neither boundary constrains the energy to a precision near ℏ/t 0 (where t 0 is the time duration between the boundary conditions). Otherwise, deviations from standard quantum mechanics are predicted. (shrink)

Realists and anti-realists disagree about whether contemporary scientists are epistemically privileged. Because the issue of epistemic privilege figures in arguments in support of and against theoretical knowledge in science, it is worth examining whether or not there is any basis for assuming such privilege. I show that arguments that try to explain the success of science by appeal to some sort of epistemic privilege have, so far, failed. They have failed to give us reason to believe (i) that scientists are (...) prone to develop theories that are true, (ii) that our current theories are not apt to be replaced in the future, and (iii) that science is nearing its completion. (shrink)

Zaman, düşünce tarihinde üzerinde çokça tartışılmış ve muhtelif tanımlamaları yapılmış bir kavramdır. Bu makale de zamanın tanımlamasından ziyade onun üzerinde özellikle an kavramı merkezli bir düşünce etkinliği ortaya konulmaya çalışılmıştır. Bilhassa zaman ve an kavramları arasındaki farka değinilmiştir. Zamanın hareketin olduğu yerde var olduğunu, anın ise hem hareketin hem de durağanlığın olduğu her yerde karşımıza çıktığını belirterek zamanın akışkan hayatı ölçülebilir kılma çabasında var oluşuyla, anın ise bu akışkanlığın her safhasında var olduğuna temas edilmiştir. Aynı zamanda anın varoluş ile mütemadiyen (...) yan yana olduğu, algılanışının ise bireylerin tecrübeleriyle zuhur ettiği görüşü ortaya konulmuştur. An’ın insan tecrübesiyle anlam kazanması ve insanın anı nasıl değerlendirmesi gerektiği hususunda konu, kanaatimizce Asr Suresi ve Hz. Peygamberin (s.a.v) buyruğu ile temellendirilmiştir. Bahsi geçen konu, çeşitli filozofların görüşleri ile de desteklenmiştir. Daha sonra makalemizde modern düşüncenin insanı anı kaliteli yaşamaktan ziyade daha iyi gelecek vaadiyle kaygı ve huzursuzluğa sevk ettiğini ifade ettik. Makalemizin sonunda ise İslam’ın bu modern düşüncenin aksine insana akışkanlık içerisinde yaşarken anın kendisine sunduğu akışkanlığın her bir aşamasını en güzel şekilde değerlendirmesini emrettiği ve onu değerli bir maden gibi tavında işlemesi gerektiği mesajıyla sonuçlandırdık. (shrink)

A time-symmetric formulation of nonrelativistic quantum mechanics is developed by applying two consecutive boundary conditions onto solutions of a time- symmetrized wave equation. From known probabilities in ordinary quantum mechanics, a time-symmetric parameter P0 is then derived that properly weights the likelihood of any complete sequence of measurement outcomes on a quantum system. The results appear to match standard quantum mechanics, but do so without requiring a time-asymmetric collapse of the wavefunction upon measurement, thereby realigning quantum mechanics with an important (...) fundamental symmetry. (shrink)

I compare the epistemic culture of Wikipedia with the epistemic culture of science, with special attention to the culture of collaborative research in science. The two cultures differ markedly with respect to (1) the knowledge produced, (2) who produces the knowledge, and (3) the processes by which knowledge is produced. Wikipedia has created a community of inquirers that are governed by norms very different from those that govern scientists. Those who contribute to Wikipedia do not ground their claims on their (...) reputations as knowers, for they stand to lose nothing if and when their contributions are found to be misleading or false. And the immediacy of the medium encourages gossip and jokes. Hence, though we have some reason to believe that an invisible hand aids scientists in realizing their epistemic goals, we cannot ground our confidence in what is reported on Wikipedia on the fact that an invisible hand ensures quality. Nor is the information on Wikipedia aptly justified in a manner similar to the way testimony can be justified. (shrink)

R K Elliott; Education, Love of One’s Subject, and the Love of Truth, Journal of Philosophy of Education, Volume 8, Issue 1, 30 May 2006, Pages 135–153, https:/.

R K Elliott; Education, Love of One’s Subject, and the Love of Truth, Journal of Philosophy of Education, Volume 8, Issue 1, 30 May 2006, Pages 135–153, https:/.

R K Elliott; Versions of Creativity, Journal of Philosophy of Education, Volume 5, Issue 2, 30 May 2006, Pages 139–152, https://doi.org/10.1111/j.1467-9752.1971.

My aim in this paper is to re-examine specialization in science. I argue that we need to acknowledge the role that conceptual changes can play in the creation of new specialties. Whereas earlier sociological accounts focus on social and instrumental changes as the cause of the creation of new specialties, I argue that conceptual changes play an important role in the creation of some scientific specialties. Specifically, I argue that conceptual developments played an important role in the creation of both (...) endocrinology and virology. (shrink)

R K Elliott; The Concept of Development: A Reply to Professor Hamlyn, Journal of Philosophy of Education, Volume 9, Issue 1, 30 May 2006, Pages 40–48, https://d.

R K Elliott; The Concept of Development: A Reply to Professor Hamlyn, Journal of Philosophy of Education, Volume 9, Issue 1, 30 May 2006, Pages 40–48, https://d.

R K Elliott; The Concept of Development: A Reply to Professor Hamlyn, Journal of Philosophy of Education, Volume 9, Issue 1, 30 May 2006, Pages 40–48, https://d.

R K Elliott; Versions of Creativity, Journal of Philosophy of Education, Volume 5, Issue 2, 30 May 2006, Pages 139–152, https://doi.org/10.1111/j.1467-9752.1971.