It has become almost commonplace to recognise that teaching is an embodied practice. Most analyses of teaching as embodied practice focus on the embodied nature of the teacher as subject. Here, we use Butler's concept of performativity to analyse the reiterated acts that are intelligible as—performatively constitute—teaching, rather of the teacher as subject. We suggest that this simultaneously helps explain the persistence of teaching as a narrow repertoire of actions recognisable as ‘teaching’, and the policing of conformity to teaching thus (...) embodied. However, like performatively accomplished subjectivity, this repertoire is unstable and ambiguous, and thus open to change and disruption. Moreover, teacher subjectivities may lead them to mobilise these possibilities of disruption. (shrink)

It has become almost commonplace to recognise that teaching is an embodied practice. Most analyses of teaching as embodied practice focus on the embodied nature of the teacher as subject. Here, we use Butler's concept of performativity to analyse the reiterated acts that are intelligible as—performatively constitute—teaching, rather of the teacher as subject. We suggest that this simultaneously helps explain the persistence of teaching as a narrow repertoire of actions recognisable as ‘teaching’, and the policing of conformity to teaching thus (...) embodied. However, like performatively accomplished subjectivity, this repertoire is unstable and ambiguous, and thus open to change and disruption. Moreover, teacher subjectivities may lead them to mobilise these possibilities of disruption. (shrink)

The tree-based data structure of -tree for propositional formulas is introduced in an improved and optimised form. The -trees allow a compact representation for negation normal forms as well as for a number of reduction strategies in order to consider only those occurrences of literals which are relevant for the satisfiability of the input formula. These reduction strategies are divided into two subsets (meaning- and satisfiability-preserving transformations) and can be used to decrease the size of a negation normal form A (...) at (at most) quadratic cost. The reduction strategies are aimed at decreasing the number of required branchings and, therefore, these strategies allow to limit the size of the search space for the SAT problem. (shrink)

The tree-based data structure of △-tree for propositional formulas is introduced in an improved and optimised form. The △-trees allow a compact representation for negation normal forms as well as for a number of reduction strategies in order to consider only those occurrences of literals which are relevant for the satisfiability of the input formula. These reduction strategies are divided into two subsets (meaning- and satisfiability-preserving transformations) and can be used to decrease the size of a negation normal form A (...) at (at most) quadratic cost. The reduction strategies are aimed at decreasing the number of required branchings and, therefore, these strategies allow to limit the size of the search space for the SAT problem. (shrink)

Feature selection is a widely studied technique whose goal is to reduce the dimensionality of the problem by removing irrelevant features. It has multiple benefits, such as improved efficacy, efficiency and interpretability of almost any type of machine learning model. Feature selection techniques may be divided into three main categories, depending on the process used to remove the features known as Filter, Wrapper and Embedded. Embedded methods are usually the preferred feature selection method that efficiently obtains a selection of the (...) most relevant features of the model. However, not all models support an embedded feature selection that forces the use of a different method, reducing the efficiency and reliability of the selection. Neural networks are an example of a model that does not support embedded feature selection. As neural networks have shown to provide remarkable results in multiple scenarios such as classification and regression, sometimes in an ensemble with a model that includes an embedded feature selection, we attempt to embed a feature selection process with a general-purpose methodology. In this work, we propose a novel general-purpose layer for neural networks that removes the influence of irrelevant features. The Feature-Aware Drop Layer is included at the top of the neural network and trained during the backpropagation process without any additional parameters. Our methodology is tested with 17 datasets for classification and regression tasks, including data from different fields such as Health, Economic and Environment, among others. The results show remarkable improvements compared to three different feature selection approaches, with reliable, efficient and effective results. (shrink)

Very few scientists today question the fact that information, together with matter and energy, is one of the three constructs forming the ontology of the universe. However, there is still a long way to go before in order to establish the interrelations between information and energy and information and matter, as Einstein did between matter and energy. In this paper, after introducing the energy, matter, information model, which covers the three constructs and their relationships, we illustrate real examples—two qualitative and (...) two quantitative—of the interrelations between energy and information. This closes the open question with respect to the interrelationship between energy and information. (shrink)

Since the mid-20th century, the study of Self-Regulated Learning has aimed to identify the distinctive characteristics that enable individuals to acquire new knowledge and skills under their control. The theory of Internal Self-Regulation vs. External-Regulation in Learning has postulated that a large number of self-regulatory variables are mediated by regulated/non-regulated or dysregulated features of the context. After signing their informed consent, a total of 616 university students completed validated instruments of SRL vs. ERL, behavioral regulation, regulatory teaching, and metacognitive study (...) control strategies. Using an ex-post facto design and correlation, regression, structural equation model and mediation analyses, the present research aimed to establish multicausal predictive relationships among the analyzed variables. Results indicated positive predictive effects between the external regulation variables on the self-regulation variables in learning [regulation /non-regulation /dysregulation ]; as well as positive predictive effects between SRL on SRB, RT and metacognitive SRS. Additionally, external regulation not only predicted but mediated numerous relations among the variables studied. Other findings and important considerations for future research in the field of self-regulation are discussed. (shrink)

Gottfried Wilhelm Leibniz is the self-proclaimed inventor of the binary system and is considered as such by most historians of mathematics and/or mathematicians. Really though, we owe the groundwork of today’s computing not to Leibniz but to the Englishman Thomas Harriot and the Spaniard Juan Caramuel de Lobkowitz, whom Leibniz plagiarized. This plagiarism has been identified on the basis of several facts: Caramuel’s work on the binary system is earlier than Leibniz’s, Leibniz was acquainted—both directly and indirectly—with Caramuel’s work and (...) Leibniz had a natural tendency to plagiarize scientific works. (shrink)

En este trabajo se defiende la existencia de un lugar específico para las decisiones de política educativa. Las decisiones de política educativa se presentan como un tipo de decisión ubicado entre la decisión técnica y la decisión moral. La racionalidad política, situada entre la racionalidad moral y la racionalidad científico-tecnológica, tiene una especial relevancia en el ámbito de la educación. Las decisiones de política educativa que no se confunden con la teoría interpretativa denominada Política de la Educación, ni con la (...) teoría práctica denominada Política Pedagógica, usan el conocimiento de la educación. En el trabajo se analiza con detenimiento la posibilidad de los hechos y las decisiones pedagógicas. El carácter axiológico de los hechos hace posible hablar de la orientación de la acción con fundamento en el conocimiento del propio proceso. Se mantiene que la decisión técnica es específica de la Pedagogía y su techo superior es el ámbito de la decisión moral. A su vez, las decisiones de política educativa se estudian en su especificidad y se concluye que los dos grandes errores en la polémica "ciencia-moral-política" son el reduccionismo del proceso al ciencismo o la subsunción de toda decisión en la decisión moral. El trabajo concluye que las peculiaridades de la decisión de política educativa, obligan a considerar que las finalidades no son criterios de decisión externos al sistema, sino constantes aceptadas provisionalmente en los procesos de planificación. Esta posición va más allá del esquema causal medios-fines y de la concepción taylorista de la organización, para defender frente a las largas cadenas de derivación de fines la formación de subsistemas de toma de decisiones. /// This article is engaged in upholding the appropiate place for decisions in Educational Politics and Policy. All that inside the knowledge of Education. Political decision making in the educational arena has got a place between technical decisions and moral decisions. That one has increasedy its relevance in educational forum. On the other point of view, this kind of decision must mot be understood as a result of the discipline "Politics of Education" or as a consequence of practical theories which are known like "Politica Pedag6gica" (Pedagogy into Politics). Decisions in educational policy are applied knowledge of Education but they are not made only with pedagogical facts and technical decisions. It's posible to think of technical decisions as the ones which come not only from the process, but from the knowledge of the process in its own. Pedagogy as a discipline of education let you make technical decisions. Upper these ones, we find the moral decision. To study the special characteristics of political decisions shows two bigs mistakes into the controversy "Science-Moral-Politics": scientism and moral subsunction of Political decision in that. In the last pages, this work goes beyond the causal relation between "means-ends". The authors suggest, for the field of goals, to make subsystem levels for decision making, in stead of using the taylorist model in order to organize several stages of goals. (shrink)

La educación es un ámbito de realidad susceptible de ser conocido. En el conocimiento de la educación se utilizan actualmente, teorías filosóficas, teorias prácticas, investigaciones aplicadas y se han generado ya términos propios con significación intrínseca a la educación. El conocimiento de la educación ha crecido a través dei tiempo. Se ha convertido en un conocimiento especializado. En este trabajo se aborda la distinción entre los conocimientos especializados de cada área cultural que se enseña y el conocimiento específico dei estúdio (...) de la educación como objeto de conocimiento. Además, se estudian diversos modelos de evolución dei conocimiento de la educación, enfatizando el interés y utilidad dei modelo de crecimiento. El trabajo insiste en la importancia del estudio de la relación teoría-práctica para obtener el conocimiento especializado y específico de la educación: el conocimiento pedagógico. Por último se establece una relación entre significación y conocimiento de la educación por medio de la capacidad de resolución de problemas para la intervención, y se debate su estructura y utilidad para la intervención a través de la relación teoría-práctica en cada mentalidad pedagógica (marginal, subalternada y autónoma). /// Education is a real area that people can know in a differents ways. Several types of knowledge and rationality are usefull for making knowledge of education. Philosophical theories, Practical theories, Applied research, let them built it. Even more, Knowledge of education has already made particular and specific concepts. Along the historical events, knowledge of education has grown. Actualy this knowledge is a specialized and specific one. Discusion wether education is a discipline, as Fisics or History has been not closed yet. This article set the state of art in that question in a different position: every way of getting knowledge of education has the same posibility for problem solving in pedagogical intervention? what kind of relation are there among the three following items: theory-practice conection; knowledge of education; pedagogic intervention?. This study stablish differences between knowledge of education and knowledge of disciplines which are used in teaching process. Besides, it enphasizes and upholds the "Educational Knowledge Growth Model". The second half of this work is carrying on to explain the different possibilities that each type of Knowledge of Education has in order to solve the problems which arise in the pedagogical intervention. All that has been maden by focussing the discussion about the theory-practice conection in three differents pedagogical mentalitys (Weltanschaaung or backgrounds): marginal, subalternated and autonomons one. (shrink)

Background Voluntary post-mortem donation to science (PDS) is the most appropriate source for body dissection in medical education and training, and highly useful for biomedical research. In Mexico, unclaimed bodies are no longer a legal source, but PDS is legally possible, although scarcely facilitated, and mostly ignored by the general population. Therefore, we aimed to evaluate the attitude and willingness for PDS and to identify a sociodemographic profile of people with willingness toward PDS. Methods A validated on-line survey was distributed (...) by the convenience method via the social networks of a Catholicism-inspired, private university in northern Mexico. Frequency analyses of all variables and coded free comments were complemented with association studies. Results Although the responder cohort (n = 143) was too small and biased to be representative of the university community (n = 13,500), willingness to post-mortem organ donation was 90.7% and to PDS 70.7%. In this cohort, PDS willingness had the strongest association with mature age (> 40 years old; P, 0.0008). Among young adults, willingness to PDS was the lowest among volunteers from technical and business schools and the highest among those from the social sciences (P, 0.009). Respondents from the social sciences were also the most consistent between attitude and behavior with respect to organ donation. A free comment option revealed respondents were interested in the unusual taboo topic. Conclusions A small, but sufficiently large proportion expressed willingness toward PDS. In our university cohort, which was biased in higher education and altruism, mature age and social interest were associated with PDS willingness. (shrink)

This article explores the question of how scientific uncertainty can be managed in medical decision making using the Advisory Committee on Immunization Practices as a case study. It concludes that where a high degree of technical consensus exists about the evidence and data, decision makers act according to a clear decision rule. If a high degree of technical consensus does not exist and uncertainty abounds, the decision will be based on a variety of criteria, including readily available resources, decision-process constraints, (...) and the available knowledge base, among other things. Decision makers employ a variety of heuristic devices and techniques, thereby employing a pragmatic approach to uncertainty in medical decision making. The article concludes with recommendations for managing scientific uncertainty in medical decision making. (shrink)

To assess the effectiveness of Visual Thinking Strategies in medical education curricula, a pretest–posttest experimental study design was used to evaluate the impact of participating in VTS workshops on first-year medical students. A total of forty-one intervention and sixty comparative students completed the study which included the analysis of clinical images followed by a measurement of word count, length of time analyzing images, and quality of written observations of clinical images. VTS training increased the total number of words used to (...) describe clinical images, the time spent analyzing the images, and the number of clinically relevant observations. (shrink)

This book explores the universe and its subsystems from the three lenses of evolutionary (diversifying), developmental (converging), and complex (adaptive) processes at all scales. It draws from prolific experts within the academic disciplines of complexity science, physical science, information and computer science, theoretical and evo-devo biology, cosmology, astrobiology, evolutionary theory, developmental theory, and philosophy. The chapters come from a Satellite Meeting, "Evolution, Development and Complexity" (EDC) hosted at the Conference on Complex Systems, in Cancun, 2017. The contributions will be peer-reviewed (...) and contributors from outside the conference will be invited to submit chapters to ensure full coverage of the topics. This book explores many issues within the field of EDC such as the interaction of evolutionary stochasticity and developmental determinism in biological systems and what they might teach us about these twin processes in other complex systems. This text will appeal to students and researchers within the complex systems and EDC fields.. (shrink)

The numerical study of a glycolytic model formed by a system of three delay differential equations reveals a multiplicity of stable coexisting states: birhythmicity, trirhythmicity, hard excitation and quasiperiodic with chaotic regimes. For different initial functions in the phase space one may observe the coexistence of two different quasiperiodic motions, the existence of a stable steady state with a stable torus, and the existence of a strange attractor with different stable regimes (chaos with torus, chaos with bursting motion, and chaos (...) with different periodic regimes). For a single range of the control parameter values our system may exhibit different bifurcation diagrams: in one case a Feigenbaum route to chaos coexists with a finite number of successive periodic bifurcations, in other conditions it is possible to observe the coexistence of two quasiperiodicity routes to chaos. These studies were obtained both at constant input flux and under forcing conditions. (shrink)

Depuis une vingtaine d'annees, on assiste un peu partout a un regain d'interet pour les ecrits socratiques de Xenophon. Que Xenophon ne nous donne pas davantage que Platon un portrait historiquement fiable de Socrate peut etre considere comme un acquis de la critique du XXe siecle. Laissant transparaitre dans son temoignage des options profondement differentes de celles de Platon, Xenophon temoigne par la meme, cependant, des tensions, voire des oppositions qui traversaient le milieu socratique autour du souvenir et de la (...) comprehension de la personne de Socrate: cette seule consideration suffit a faire de Xenophon une source essentielle pour notre connaissance de l'immediat apres Socrate et, par dela, pour notre intelligence de l'histoire de la reception de Socrate dans les siecles ulterieurs. Le colloque dont sont issues les etudes rassemblees dans ce volume, organise a l'Universite de Provence (Aix-Marseille I) du 6 au 9 novembre 2003, s'inscrit dans cette perspective. Plus qu'un bilan de la nouvelle orientation des etudes xenophontiennes, qu'il est encore trop tot pour etablir, on y verra l'illustration de la diversite d'approches dont est susceptible le temoignage de Xenophon sur Socrate. Due a Louis-Andre Dorion, une bibliographie des etudes sur les ecrits socratiques de Xenophon publiees dans le dernier quart de siecle temoigne de la vitalite retrouvee de ce domaine de recherche. (shrink)

This study examines the specificvalues held by consumers towards organic andconventionally produced meat, with particularreference to moral issues surrounding foodanimal production. A quota sample of 30 femalesfrom both a rural and an urban area of Scotland, were interviewed. Overall, there was lowcommitment towards the purchase of organicmeats and little concern for ethical issues.Price and product appearance were the primarymeat selection criteria, the latter being usedas a predictor of eating quality. Manyattitude-behavior anomalies were identified,mainly as a result of respondents' cognitivedissonance and (...) lack of understanding regardingmeat production criteria underpinning meatquality marks, e.g., Soil Association label.Responsibilities for ethical issues appeared tobe delegated by the consumer to the meatretailer or government. This raises issuesabout educating consumers and bringingconsumers closer to understanding meatproduction systems. A conceptual framework isproposed that illustrates the significance ofconsumer involvement in how meat-purchasingdecisions are approached in terms of theevaluation of tangible and or intangiblequality attributes. The results also point tothe need for further research into thoseaspects of quality that individuals tend toaddress at the level of the citizen,rather than at the point of purchase. (shrink)

Continuing the dialogue: postcolonial feminist scholarship and Bourdieu — discourses of culture and points of connection Postcolonial feminist theories provide the analytic tools to address issues of structural inequities in groups that historically have been socially and economically disadvantaged. In this paper we question what value might be added to postcolonial feminist theories on culture by drawing on Bourdieu. Are there points of connection? Like postcolonial feminists, he puts forward a position that aims to unmask oppressive structures. We argue that, (...) while there are points of connection, there are also epistemologic and methodologic differences between postcolonial feminist perspectives and Bourdieu's work. Nonetheless, engagement with different theoretical perspectives carries the promise of new insights — new ways of ‘seeing’ and ‘understanding’ that might enhance a praxis‐oriented theoretical perspective in healthcare delivery. (shrink)