The angular momentum operators for a system of two spin-zero indistinguishable particles are constructed, using Isham’s Canonical Group Quantization method. This mathematically rigorous method provides a hint at the correct definition of (total) angular momentum operators, for arbitrary spin, in a system of indistinguishable particles. The connection with other configuration space approaches to spin-statistics is discussed, as well as the relevance of the obtained results in view of a possible alternative proof of the spin-statistics theorem.

Within a geometric and algebraic framework, the structures which are related to the spin-statistics connection are discussed. A comparison with the Berry-Robbins approach is made. The underlying geometric structure constitutes an additional support for this approach. In our work, a geometric approach to quantum indistinguishability is introduced which allows the treatment of singlevaluedness of wave functions in a global, model independent way.

Pathological tremor is a common but highly complex movement disorder, affecting ~5% of population older than 65 years. Different methodologies have been proposed for its quantification. Nevertheless, the discrimination between Parkinson’s disease tremor and essential tremor remains a daunting clinical challenge, greatly impacting patient treatment and basic research. Here, we propose and compare several movement-based and electromyography-based tremor quantification metrics. For the latter, we identified individual motor unit discharge patterns from high-density surface electromyograms and characterized the neural drive to a (...) single muscle and how it relates to other affected muscles in 27 Parkinson’s disease and 27 essential tremor patients. We also computed several metrics from the literature. The most discriminative metrics were the symmetry of the neural drive to muscles, motor unit synchronization, and the mean log power of the tremor harmonics in movement recordings. Noteworthily, the first two most discriminative metrics were proposed in this study. We then used decision tree modelling to find the most discriminative combinations of individual metrics, which increased the accuracy of tremor type discrimination to 94%. In summary, the proposed neural drive-based metrics were the most accurate at discriminating and characterizing the two most common pathological tremor types. (shrink)

El Ministerio de Salud Pública cubano ha otorgado especial importancia al tema relacionado con el desempeño profesional evaluativo de la información estadística en los profesionales de la salud, pero una revisión bibliográfica permitió constatar el insuficiente debate pedagógico encaminado a diagnosticar su estado actual para proponer alternativas que permitan su formación y desarrollo en los estudiantes. Este artículo tiene como objetivo caracterizar el desempeño profesional evaluativo de la información estadística en estudiantes de Medicina. Los resultados obtenidos con la aplicación de (...) métodos y técnicas de investigación, tales como encuestas, test de conocimientos permitieron confirmar que ese desempeño actualmente se expresa a un nivel insatisfactorio de actuación. Se concluyó buscar formas más efectivas para su logro en estudiantes de Medicina. The Cuban Ministry of Public Health has given special importance to the subject of professional assessment of statistical information in the area of public health; however, a bibliographic review allowed authors to prove pedagogical debate unsatisfactory. The review was aimed at diagnosing its current state and therefore provide alternatives that allow its formation and development in medical students. The objective of the article is to characterize the assessable professional performance of statistical information in medical students. The results achieved through the application of research methods and techniques such as surveys and knowledge tests enabled to confirm that, nowadays, professional performance is below satisfactory performance levels. As a result, newer and more effective ways of achieving it in medical students will be searched for. (shrink)

This book collects texts from three specialists in ancient philosophy which deal with the question of perceptive and intellective knowledge in antiquity. They try to present, in their different analyzes, the complex interrelationship among perception and thought in ancient authors, like Heraclitus, Parmenides, Democritus, Plato and Aristotle. The purpose of the texts is to expose the visible field - the perceptual knowledge domain - interacts with the invisible - the domain of reason and thought. In other words, that among them (...) there is no a radical separation of these two areas, although they are clearly distinct. (shrink)

In Entities and Indices, M. J. Cresswell argued that a first-order modal language can reach the expressive power of natural-language modal discourse only if we give to the formal language a semantics with indices containing infinite possible worlds and we add to it an infinite collection of operators $${{\varvec{actually}}}_n$$ actually n and $$ Ref _n$$ R e f n which store and retrieve worlds. In the fourth chapter of the book, Cresswell gave a proof that the resulting intensional language, which (...) he called $${\mathscr {L}}^*$$ L ∗, is as expressive as an extensional variant of it, called $${\mathscr {L}}$$ L, which has full quantification over worlds. In both linguistics and philosophy, Cresswell’s book has been viewed as offering a compelling argument for preferring extensional systems in the study of natural language. In this paper, after providing a model-theoretic definition of the relation being as expressive as that can be applied to Cresswell’s languages $${\mathscr {L}}$$ L and $${\mathscr {L}}^*$$ L ∗, we show that the intensional language $${\mathscr {L}}^*$$ L ∗ is not as expressive as the extensional language $${\mathscr {L}}$$ L. This result, we claim, undermines Cresswell’s argument to the effect that English modal discourse has the power of explicit quantification over worlds. Additionally, we show that $${\mathscr {L}}^*$$ L ∗ does become as expressive as $${\mathscr {L}}$$ L when we add Cresswell’s operator of universal modality $$\square $$ □ to $${\mathscr {L}}^*$$ L ∗, which provides an extra amount of expressive power. Recently, I. Yanovich has advocated a view that is similar to ours in important respects. At the end of the paper we offer a short discussion of his formalism. (shrink)

Hükmün tanımına ilişkin fıkıh usulünde ortaya çıkan farklılıklar kelâmî bir zemin barındırmaktadır. Alaaddin es-Semerkandî hüküm teorisinin kelâmî zemininden bahsetmekte ve hükmün mahiyetine ilişkin farklılıklara itikadî ayrışmaların etkisini dile getirmektedir. Mu’tezile’nin şer’ gelmeden de fiillerin hükümlerinin bilinebileceğine ilişkin hüsun-kubuh anlayışına bir reaksiyon olarak Eş’arîler; aklın bir fiilin hüsun ve kubhuna dair hüküm veremeyeceği, aklın nimet verene şükretmeyi gerektirmeyeceği ve şer’ gelmeden önce fiillerin hükmünün bulunmadığı iddiasındadırlar. Hüküm teorisinde ortaya çıkan görüş farklılıklarının temellerinde hadis-rey problemi de yatmaktadır. Kur'an ve sünnetin en önemli (...) iki kaynak olduğu ortadadır. Bununla birlikte hadislerin toplanmasının reyle hüküm verme alanının daralmasına sebep olduğu bilinmektedir. Hadis-rey tartışmalarına kaynaklık etmeleri sebebiyle burada Kur'an ve sünnetin otorite oluşlarına değinilmiştir. Yine burada Kur’an ve sünnetin otoritesinin kelâm eliyle sağlandığı özellikle vurgulanmış, İlahî iradenin hüküm koymada tek yetkili unsur olarak tayin edilmesinin de kelâm eliyle belirlendiği dile getirilmiştir. (shrink)

Este trabajo trata sobre el pensamiento político del humanista español Benito Arias Montano . Consta de dos partes: en la primera se estudia la actuación política de Arias Montano como consejero del rey Felipe II en Flandes; en la segunda se comenta elDavid , obra publicada por Arias Montano en colaboración con el artista holandés Philippe Galle en Amberes, donde se puede apreciar su alegoría sacro política.PALABRAS CLAVE: Arias Montano, Philippe Galle, Felipe II, política, República Cristiana Católica, metafórica teocrática, (...) humanismo bíblico, historia sagrada, historia profana, tacitismo, Campos Sánchez-Bordona, Sánchez Lora This paper examines the Spanish humanist Benito Arias Montano’s political thought, divided into two parts. Firstly, a study of the Arias Montano’s activity as advisor to King Philip II in Flanders. Secondly, the comment on his work David , published in collaboration with the Dutch artist Philip Galle in Antwerp, and in which its possible appreciate his sacred political allegory.KEYWORDS: Arias Montano, Philip Galle, Philip II, Christian Catholic Republic, biblical humanism, sacred history, profane history, tacitism, Campos Sánchez-Bordona, Sánchez Lora. (shrink)

İslam hukuku tarihine baktığımızda fıkıh usûlünün bir süreç içerisinde geliştiğini söylemek mümkündür. Bu süreç içerisinde, mezhep imamları de-diğimiz müçtehitler başta olmak üzere birçok âlimin, fıkıh usûlü ilminin yapısını oluşturan katkılarından bahsedilebilir. Örneğin İmam Ebû Hanîfe’nin istihsana başvurması, İmam Mâlik’in amel-i ehli Medine ile amel etmesi ve İmam Şafiî’nin hem Ehl-i rey hem de Ehl-i hadisin fıkhını mezcederek elde ettiği formasyonla “er-Risâle” adlı eserinde bir usûl ortaya koyması fıkıh usûlü ilminin yapısını oluşturan katkıların başında gelmektedir. Bu katkıların yanında özellikle mezheplerin kurumsallaştığı (...) dönem ve sonrasında Gazalî, İbn Teymiyye, öğrencisi İbn Kayyım ve Şâtıbî gibi âlimlerin, fıkıh usulüne dinamizm kazandırmak adına söz konusu ilme yönelik birtakım yenileme çabaları ortaya koydukları bilinmektedir. Modern dönemde ise fıkıh usûlünü yenileme çabalarının klasik döneme göre daha net ve yaygın olduğu görülmektedir. Bu dönemde fıkıh usulüne yönelik yenileme çabalarını iki merhalede değerlendirmek mümkündür. Bu merhalelerin birincisi, fıkıh usûlünü yenilemeye çağrı merhalesi, ikincisi ise fıkıh usûlünü yenilemenin amelî merhalesidir. İkinci merhalede âlimlerin dinî, siyasî, sosyal ve felsefî eğilimlerine bağlı olarak kendi içinde de farklı tezler içeren “fıkhî ve usûlî yaklaşım” ve “fikrî ve felsefî yaklaşım” olmak üzere iki temel yaklaşımdan bahsedilebilir. Bu çalışmada kendi içinde de farklı eğilimlere sahip fikrî ve felsefî yaklaşımın fıkıh usûlünü yenilemeye dair görüşlerini, Fazlurrahman,, Hasan Turabî ve Muhammed Müctehid Şebusterî örnekliğinde sunmaya çalıştık. (shrink)

Bu çalışmada İmam Mâlik’in/Mâlikîlerin necasetler ve kadınların özel halleriyle ilgili üç sünni mezhep başta olmak üzere cumhura muhalefet ettiği ve bu mezhebin karakteristiği haline gelen bazı temel meselelerden yola çıkılarak onların Hicaz bölgesi kaynaklı bir mezhep olarak eser çizgisinde mi rey çizgisinde mi yahut bu iki arasında olup esere mi daha yakın olduğu ihtimallerini ortaya koymak amaçlanmıştır. Bu noktada Mâlikîlerin ve diğer mezheplerin muteber klasik kaynakları ile “ihtilâfu’l-fukahâ” türünden eserlere müracaat edilmiştir. Ele alınan örneklerde Mâlikîlerin görüşleri şöyledir: Suların pislenmesi konusunda (...) Mâlikîler suyun azlık ya da çokluk ölçüsünü değil suyun rengi, tadı ve kokusu gibi temel vasıflarından birinin değişip değişmediğini esas alarak hüküm vermişlerdir. Eti yenen hayvanların idrar ve dışkıları konusunda eti yenen hayvan necis bir şeyler yeyip içmemişse bunların hem idrarları hem de dışkılarının temiz olup, namaza engel olmadığı görüşünü benimsemişlerdir. Köpeğin kendisinin ve yaladığı kabın temiz olup olmadığı konusunda Mâlikîler köpek ve domuz dahil canlı olan her hayvan -necis bir şey yemiş olsa bile- temiz olduğu görüşünü savunmuşlardır. Hayzın herhangi bir alt sınırının olup-olmadığı noktasında bunun alt bir sınırının olmadığı ve bir defalık kanama yani kısa bir müddet kanın gelmesinin âdetin sübutu için yeterli olduğunu görüşünü benimsemişlerdir. Âdetli kadının Kur’an okuması meselesinde ise bu durumda olan kadının Kur’an’a dokunmasının yasak olduğu, fakat onu dokunmadan okuyabileceği görüşünde olmuşlardır. Hatta öğretici veya öğrenci olanlar zaruret miktarınca eğitim amacıyla ruhsat hükümden faydalanarak Kur’ân’a hem dokunabilir hem de onu okuyabilir. Elde edilen bulgular neticesinde İmam Mâlik’in/Mâlikîlerin maslahat ve istihsanı kullanmada öne çıkan bir mezhep olarak reyi kullanmakla birlikte, genel olarak nasların umumundan veya mutlaklığından hareket ettikleri, görüşlerine aykırı özel nasları mutlaka usule ait bir yöntemle te’vil ettikleri yahut cerh ve ta’dil yoluna başvurdukları veya meşru gerekçeleri olan istihsan yoluyla terk ettikleri, dolayısıyla esere daha yakın oldukları ve Hicaz fıkhını temsil ettikleri sonucuna ulaşılmıştır. (shrink)

Erken dönem tasavvuf tarihinde iki ana akımdan biri olarak kabul edilen Horasan tasavvuf ekolünün şekillenmesinde Hâtim el-Esam (ö.237/851) önemli bir figür olarak karşımıza çıkar. İbrahim b. Edhem (ö.161/778) ve Şakîk-i Belhî (ö.194/810) kanalıyla gelen öğretinin Horasan ve Maveraünnehir genelinde aktarım ve intişarının sağlamasında onun etkin bir rol oynadığı bilinir. Aynı zamanda yetiştirdiği talebeleriyle Melâmetîliğin teşekkülüne katkı sağladığı kabul edilir. Bu makale Hâtim el-Esam’ın entelektüel açıdan kimliği ve ilişkiler ağının tespitine odaklanmaktadır. Herhangi bir akademik çalışmaya konu edilmediği görülen söz konusu odağı, (...) farklı ilmî sahalardan istifade ettiği literatürle erken dönemdeki mesele ve tartışmalardan faydalanarak sunmaya çalışır. Bu itibarla Hâtim el-Esam’ın muhaddis, fakih ve sufi kimliğiyle Horasan ilim havzasının önemli şehirlerinden biri olan Belh’te ilmî faaliyetlerin ve özellikle hadis ilminin sürekliliğine katkı yaptığı ortaya konmuştur. Çok yönlü ilişkiler ağına sahip olduğu tespit edilen Hâtim el-Esam’ın Belh ve Bağdat ulemâsı ile irtibatının dostluk ve irşad eksenli ve aynı zamanda fıkh-ı bâtın vurgulu olduğu görülürken Rey, Kazvin ve Medine-i Münevvere ulemasıyla olan münasebetlerininse eleştiri odaklı olduğu belirlenmiştir. Nebevî mirasa bütünüyle sahip çıkılmamasına ilişkin söz konusu eleştirel münasebet biçimi, erken dönemde sufilerin, biçim-öz bütünlüğünden uzaklaşmaları nedeniyle diğer ilim müntesiplerine yönelttikleri tenkitlerin bir yansıması olarak değerlendirilmiştir. Ayrıca sened analizi yöntemiyle onun sufilerle olan ilişkiler ağına yönelik yeni tespitler ortaya konmuştur. (shrink)

Krause, C. F. Concepto subjetivo-objetivo de lo bello.--Krause, K. C. F. [y] Sanz del Río, J. El arte y la poesía.--Fernández y González, F. Lo bello y la naturaleza.--Paula Canalejas, F. de. Del carácter de las pasiones en la tragedia y en el drama.--Giner de los Ríos, F. El arte y las artes.--Giner de los Ríos, F. Consideraciones sobre el desarrollo de la literatura moderna.--Revilla, M. de la. El naturalismo en el arte.--Revilla, M. de la. La tendencia docente en la (...) literatura contemporánea.--González Serrano, U. Consideraciones sobre el arte y la poesía.--Alas, L. Benito Pérez Galdós. (shrink)

The cyclical theory f time, which is better known under the name of the 'theory of eternal recurrence,' is usually associated with certain ancient thinkers--in particular, Pythagoreans and Stoics. The most famous among those who have tried to revive the theory in the modern era is unquestionably Friedrich Nietzsche. It is less well known that the theory was defended also by C.S. Peirce and, as late as 1927, by the French historian of science, Abel Rey. The contemporary discussion of the (...) problem of the direction of time has a direct bearing on the problem of eternal recurrence. The primary purpose of this paper is to evaluate critically the theory itself and then to show how this critical analysis can be applied to Peirce's own version of this theory. (shrink)

In the paper [8], the first author developped a topos- theoretic approach to reference and modality. (See also [5]). This approach leads naturally to modal operators on locales (or spaces without points). The aim of this paper is to develop the theory of such modal operators in the context of the theory of locales, to axiomatize the propositional modal logics arising in this context and to study completeness and decidability of the resulting systems.

Fringe science has been an important topic since the start of the revolution in the social studies of science that occurred in the early 1970s. The revolution was what Collins and Evans refer to as the "second wave of science studies," while this paper is best thought of as an exercise in "third wave science studies." The first wave was that period which reached its apogee in the aftermath of the Second World War when science was seen as unquestionably the (...) pre-eminent form of knowledge-making, and the role of philosophy and sociology was to understand how it was so and how societies could be arranged to nurture it best; the second wave was "social constructionism" which became folded into post-modernism in... (shrink)

Contents: Foreword. Wolfgang BALZER and C. ULISES MOULINES: Introduction. José A. DÍEZ CALZADA: Structuralist Analysis of Theories of Fundamental Measurement. Adolfo GARCÍA DE LA SIENRA and Pedro REYES: The Theory of Finite Games in Extensive Form. Hans Joachim BURSCHEID und Horst STRUVE: The Theory of Stochastic Fairness - its Historical Development, Formulation and Justification. Wolfgang BALZER and Richard MATTESSICH: Formalizing the Basis of Accounting. Werner DIEDERICH: A Reconstruction of Marxian Economics. Bert HAMMINGA and Wolfgang BALZER: The Basic Structure of (...) Neoclassical General Equilibrium Theory. Klaus MANHART: Balance Theories: Two Reconstructions and the Problem of Intended Applications. Rainer WESTERMANN: Festinger's Theory of Cognitive Dissonance: A Structuralist Theory-Net. Rainer REISENZEIN: Wundt's Three-Dimensional Theory of Emotion. Pablo LORENZANO: Classical Genetics and the Theory-Net of Genetics. Hinne HETTEMA and Theo A.F. KUIPERS: The Formalisation of the Periodic Table. C. ULISES MOULINES: The Basic Core of Simple Equilibrium Thermodynamics. Thomas BARTELBORTH: An Axiomatization of Classical Electrodynamics. Author's Index. Subject Index. (shrink)

In his new book Emotion: The Basics, Michael S. Brady introduces the fundamentals on the philosophical approach to emotions: by fleshing out these basic tenets Brady provides insight into a core component of all our lives and covers the nature of emotions, their relationship to knowledge and understanding, and their relationship to our moral and social selves. In my comments, I value the achievements of Brady's work as well as explore a critical approach to the book in which I emphasise (...) how the book deals with the dichotomy between emotions and reasons. I also engage with the limitations that emerge from a viewpoint of a scholar specialised on the history of philosophy and epistemology, and point towards some puzzles that ought to be further considered. (shrink)

El presente trabajo propone, desde una perspectiva crítica, revisar los cuestionamientos que desde el pensamiento crítico latinoamericano, en especial desde la obra de Arturo Roig, se hacen a la hegemonía del pensamiento de la modernidad occidental que con su pretensión de universalizar su visión de..

Se realiza una revisión bibliográfica con el objetivo de analizar los diferentes códigos éticos y deontológicos internacionales, regionales y nacionales de los que se nutre la especialidad de psiquiatría. Se concluye que el comportamiento ético se basa en el sentido de la responsabilidad individual de cada psiquiatra hacia cada paciente y en la capacidad de ambos para determinar cuál es la conducta correcta y más apropiada. Las normas externas y las directrices, tales como los códigos de conducta profesional, las aportaciones (...) de la ética y de las normas legales, no garantizan por sí solas la práctica ética de la medicina, pero constituyen un importante marco referencial. A literature review was performed with the objective of analyzing the various international, regional and national ethical and deontological codes that the psychiatry specialty feeds on. It is concluded that ethical behavior is based on the sense of individual responsibility of each psychiatrist to each patient and the ability of both to determine what the correct and appropriate behavior is. External standards and guidelines, such as professional codes of conduct, the study of ethics and legal standards alone do not guarantee the ethical practice of medicine but are an important framework. (shrink)

The aim of this paper is to introduce a new approach to the modal operators of necessity and possibility. This approach is based on the existence of two negations in certain lattices that we call bi-Heyting algebras. Modal operators are obtained by iterating certain combinations of these negations and going to the limit. Examples of these operators are given by means of graphs.

This paper offers some insights and clarifications of the paramount role that Mexico has had in the forging of first-order cybernetics. Our account starts with Arturo Rosenblueth as a key intellectual figure in the foundation and formation of the field. After revisiting a historical context of people and places, we proceed to a cultural and media archeological investigation that helps us obtain new insights into the ongoing effort to intertwine the complex intellectual networks across different countries in Latin America, North (...) America, and Europe. We then present cases and first-hand interviews to discuss the legacy of cybernetics in Mexico around institutions where Rosenblueth was affiliated, mainly the Institute of Cardiology and, later on, the CINVESTAV at the Instituto Politécnico Nacional. We claim that subjective affinities are as important as common scientific goals to establish and keep connections alive, necessary to the development of a research field. As the active compound in spicy peppers, capsaicin represents a local component to the definition of cybernetics. Ultimately, the paper aims to contribute to the research on the importance of cybernetics in Latin America. (shrink)

Research Integrity (RI) is high on the agenda of both institutions and science policy. The European Union as well as national ministries of science have launched ambitious initiatives to combat misconduct and breaches of research integrity. Often, such initiatives entail attempts to regulate scientific behavior through guidelines that institutions and academic communities can use to more easily identify and deal with cases of misconduct. Rather than framing misconduct as a result of an information deficit, we instead conceptualize Questionable Research Practices (...) (QRPs) as attempts by researchers to reconcile epistemic and social forms of uncertainty in knowledge production. Drawing on previous literature, we define epistemic uncertainty as the inherent intellectual unpredictability of scientific inquiry, while social uncertainty arises from the human-made conditions for scientific work. Our core argument—developed on the basis of 30 focus group interviews with researchers across different fields and European countries—is that breaches of research integrity can be understood as attempts to loosen overly tight coupling between the two forms of uncertainty. Our analytical approach is not meant to relativize or excuse misconduct, but rather to offer a more fine-grained perspective on what exactly it is that researchers want to accomplish by engaging in it. Based on the analysis, we conclude by proposing some concrete ways in which institutions and academic communities could try to reconcile epistemic and social uncertainties on a more collective level, thereby reducing incentives for researchers to engage in misconduct. (shrink)