Traditional literature considers complex biometric sources such as words, letters and signatures for writer verification/identification. In this work the use of small segments of the handwritten stroke for writer verification is proposed. A grapheme is defined as the concatenation of smaller segments or fragments. Two models of grapheme are developed based on the idea that the segments are parts of a circle with or without direction. The average of Gray Level of the Perpendicular Line to the Skeleton and Local Binary (...) Pattern are adopted as descriptors. A database of 3,000 images of 50 writers, with 6 types of segments and with 10 samples per segment has been developed. A binary output support vector machine was applied as classifier. Thus, 50 classifiers were trained using 100 balanced data sets generated using subsampling of the majority class. Experiments are carried out with the proposed models, with an identity verification hit rate of 97 % on average. The positive results of experiments show that it is possible to achieve high precision in writer verification using segment of graphemes. (shrink)

L'auteur questionne dans cet essai une certaine éthique de la fragilité et de l'échec, initiée avec la quête antique, déjà précaire, de ce que Foucault appelait le "souci de soi", et encore manifeste à travers les tourments ...

Let [Formula: see text] be an integer. We show that the set of real numbers that are Poisson generic in base [Formula: see text] is [Formula: see text]-complete in the Borel hierarchy of subsets of the real line. Furthermore, the set of real numbers that are Borel normal in base [Formula: see text] and not Poisson generic in base [Formula: see text] is complete for the class given by the differences between [Formula: see text] sets. We also show that the (...) effective versions of these results hold in the effective Borel hierarchy. (shrink)

Un invito a vedere nella vita e nelle opere di don Sturzo delle risposte alle difficoltà del mondo attuale, approfondendo le ragioni di un impegno cristiano per il recupero della dimensione etica dell’economia, della politica e delle istituzioni.

At the outset of an ethnographic inquiry, we navigated national and international resources to search for theoretical and practical guidance on obtaining parents and children’s informed consent/assent. While much theoretical guidance debating ethical issues to children’s participation in research was found, a paucity of published papers offering practical guidance on assent processes and/or visual representations of child assent forms and information sheets was discovered. The purpose of this article is to describe our experiences, both theoretically and practically, of negotiating the (...) process of obtaining informed consent and assent with parents and children for a non-therapeutic qualitative research study. We hope this article instigates a platform for others to explicate their experience and contributes to the construction of a coherent body of knowledge which will clearly delineate important elements that must be considered when negotiating children’s agreement to participate in research. (shrink)

In this paper, we examine the scientific, legal, and ethical foundations for inclusion of transgender women athletes in competitive sport, drawing on IOC principles and relevant Court of Arbitration for Sport decisions. We argue that the inclusion of trans athletes in competition commensurate with their legal gender is the most consistent position with these principles of fair and equitable sport. Biological restrictions, such as endogenous testosterone limits, are not consistent with IOC and CAS principles. We explore the implications for recognizing (...) that endogenous testosterone values are a ‘natural physical trait’ and that excluding legally recognized women for high endogenous testosterone values constitutes discrimination on the basis of a natural physical trait. We suggest that the justificatory burden for such prima facie discrimination is unlikely to be met. Thus, in place of a limit on endogenous testosterone for women, we argue that ‘legally recognized gender’ is most fully in line with IOC and CAS principles. (shrink)

As críticas de Newton e Voltaire endereçadas à negação do vazio por parte de Descartes compartilham uma estrutura básica: ambos parecem concordar que tal tese cartesiana conduz a implicações indesejáveis tanto no campo da mecânica, quanto no que diz respeito à teologia. Entretanto, embora Newton admita as implicações teológicas da negação do vazio, elas não constituem o fim último de sua crítica, o que parece ocorrer na crítica de Voltaire. Ao contrário, os argumentos newtonianos para assumir o vazioencontram na mecânica (...) não apenas um campo de prova; eles constituem uma parte importante da fundamentação de um dos pilares do newtonianismo: o espaço absoluto. (shrink)

Este artigo visa introduzir a noção de dramatização em Gilles Deleuze. Trata-se da subversão das clássicas perguntas metafísicas que justificam as essências e as idéias. Uma distribuição de diferenças determina a atualização das idéias. O método de dramatização envolve processos de diferenciação. Diferenças internas, relativas a blocos de espaço-tempo criam condições para os conceitos. Um campo intensivo e diferencial de forças faz emergir um teatro especial de virtualidades e uma expressividade das idéias. A realidade não é dada , mas dramatizada (...) por forças não individuais e subjetividades larvares. O método de dramatização está aquém do conhecimento e até mesmo de toda consolidação que a filosofia ganha com os conceitos. O artigo procurará ainda indicar os vínculos da dramatização com os mundos incompossíveis de Leibniz e com o cinema de David Lynch. (shrink)

many symbols. We define o, as the probability that an arbitrary machine be circular and we prove that o, is a random number that goes beyond..

It is commonly thought that that the best system account of lawhood ((Mill (1843), Ramsey (1978)[fp. 1928], Lewis (1973)) makes available a nice explanation for why laws are ‘distinctively appropriate targets of scientific inquiry’ (Hall, 2015). The explanation takes the following general form: laws are especially valuable for agents like us because they efficiently encode a lot of valuable (non-nomic) information in a tractable format. The goal of this paper is to challenge this style of explanation: I argue that the (...) general principle it presupposes is in conflict with our best account of practical rationality. After considering and rejecting a number of proposals for dissolving the tension, I conclude that BSA proponents may need to scale back the explanatory ambitions of their theory; in particular, they may need to give up the hope of non-circular explanations of the value of nomic information. I end by outlining some challenges for the humean world-view that results after this shift. (shrink)

The group of mathematicians known as Bourbaki persuasively proclaimed the isolation of its field of research – pure mathematics – from society and science. It may therefore seem paradoxical that links with larger French cultural movements, especially structuralism and potential literature, are easy to establish. Rather than arguing that the latter were a consequence of the former, which they were not, I show that all of these cultural movements, including the Bourbakist endeavor, emerged together, each strengthening the public appeal of (...) the others through constant, albeit often superficial, interaction. This codependency is partly responsible for their success and moreover accounts for their simultaneous fall from favor, which, however, can clearly be seen as also stemming from different internal problems. To understand this dynamics, I argue that Bourbaki’s role can best be captured by using the notion of cultural connector, which I introduce here. (shrink)

Machine generated contents note: Chapter 1 -- The Prison of the Known -- Chapter 2 -- Can We Live without Conflict? -- Chapter 3 -- The Meaning of Dialogue -- Chapter 4 -- Practice and Solidarity: We Are the World -- Chapter 5 -- Science and the Religious Mind -- Chapter 6 -- A Call for Active Being: Being at Home in the World.

We live in dangerous times, ruled by the imperatives of what Hannah Arendt calls “the catastrophic interiority of the selfish I” 1 which threatens the planet and the survival of humanity. But I believe, nevertheless, that it is possible to reinvent the world since, by and large, it is evident that its shape reflects our notions of reality and value, the way we weave together the various strands of existence. Antonio Gramsci may have had something like this in mind when (...) he wrote that it is only by “the conquest of greater consciousness” that we will be able to bring a different kind of culture into being because, “man is above all spirit,” a creature, that is, with imagina- tion, the ability to reconfigure the way we see ourselves and the world. Just as importantly, he argues that this may mean returning to some things we once knew but have now forgotten or ignored. Poetry or, to be more accurate, poetic ways of seeing, may be one of these things, to the extent that it generates ways of seeing beyond the merely rational. In this essay I therefore want to explore the work of Judith Wright and the ways in which it explores the possibilities of being ‘true to the earth’. 2. (shrink)

This paper deals with epistemological and methodological complexities in gender studies, when applied to the social movements of indigenous and peasant women in rural Mexico. Their problems, actions, achievements, projects and utopia, allow the appropriation and redefinition of concepts from local ..

It’s relatively easy to say that the debates about whether trans and intersex women athletes deserve full and equal inclusion in women’s sport is a contentious contemporary issue. I’ve already argued for the legal, ethical, and scientific basis for full and equal inclusion of trans and intersex women in women’s sport. In this paper, I want to analyze what I take to be a representative selection of recent arguments against full and equal inclusion of trans and intersex women in women’s (...) sport. In short, these arguments tend to be based on mere assumption, unsupported “common sense,” straw arguments, fallacious question begging, and a number of hypotheticals and unsupported counterfactuals rather than established fact. Essentially, they’re based on a lot of “ifs.”. (shrink)

“Today I made the ascent of the highest mountain in this region, which for good reasons is called Ventosum, guided only by the desire to see the extraordinary altitude of the place”. Petrarch's ascent of the Mont Ventoux in 1336, or rather his account of it, established the mountain as a distinctive place for experiencing and understanding nature and self. Since then, the mountain has been sought out in increasing numbers by those pursuing spiritual elevation, bodily exertion, and/or scientific investigation. (...) To this day, a pilgrimage church, several hotels, and an observatory are characteristically perched atop Mont Ventoux. And it is famous among cyclists as a legendarily difficultétapeof the Tour de France. (shrink)

Background:Ethical competence in nursing practice helps clinical nurses to think critically, analyse issues, make ethical decisions, solve ethical problems and behave ethically in their daily work. Thus, ethical competence contributes to the promotion of high-quality care. However, studies on ethical competence in Malawi are scanty.Objectives:The aim of this study was to explore ethical competence among clinical nurses in selected hospitals in Malawi.Methodology:A cross-sectional survey was conducted in four selected hospitals in Malawi with a sample of 271 clinical nurses. Data were (...) collected using self-administered questionnaires, which included a Moral Competence Scale for Home Care Nurses. Descriptive statistics and logistic regression were computed for the dataset using STATA version 12.0.Ethical consideration:The study protocol complied with all ethical requirements and was approved by the College of Medicine Research Ethics Committee under the University of Malawi.Results:The clinical nurses in Malawi are ethically competent. However, there is a significantly high number (p 0.05). Three determinants of high ethical competence level (strong will, judgement skills and recognition of discrepancy of intention) were identified through a reduced model after stepwise logistic regression analysis. Furthermore, results show that indicators of ethical competence include caring, confidentiality and observance of nurses dressing code. The study has also confirmed that the Moral Competence Scale for Home Care Nurses is a reliable tool to assess ethical competence in low-resource settings.Conclusion:The majority of nurses who completed the survey had low ethical competence. However, clinical nurses with high ethical competence level are required to competently manage complex ethical challenges in health facilities. Strategies for enhancing ethical competence such as continuing ethics education, establishment of ethics committees and provision of supportive supervision are recommended to enable nurses in Malawi attain a high level of ethical competence. (shrink)

Abstract:Brain–computer interfaces (BCIs) can enable communication for persons in severe paralysis including locked-in syndrome (LIS); that is, being unable to move or speak while aware. In cases of complete loss of muscle control, termed “complete locked-in syndrome,” a BCI may be the only viable solution to restore communication. However, a widespread ignorance regarding quality of life in LIS, current BCIs, and their potential as an assistive technology for persons in LIS, needlessly causes a harmful situation for this cohort. In addition (...) to their medical condition, these persons also face social barriers often perceived as more impairing than their physical condition. Through social exclusion, stigmatization, and frequently being underestimated in their abilities, these persons are being locked out in addition to being locked-in. In this article, we (1) show how persons in LIS are being locked out, including how key issues addressed in the existing literature on ethics, LIS, and BCIs for communication, such as autonomy, quality of life, and advance directives, may reinforce these confinements; (2) show how these practices violate the United Nations Convention on the Rights of Persons with Disabilities, and suggest that we have a moral responsibility to prevent and stop this exclusion; and (3) discuss the role of BCIs for communication as one means to this end and suggest that a novel approach to BCI research is necessary to acknowledge the moral responsibility toward the end users and avoid violating the human rights of persons in LIS. (shrink)

The introduction of new medical treatments based on invasive technologies has often been surrounded by both hopes and fears. Hope, since a new intervention can create new opportunities either in terms of providing a cure for the disease or impairment at hand; or as alleviation of symptoms. Fear, since an invasive treatment involving implanting a medical device can result in unknown complications such as hardware failure and undesirable medical consequences. However, hopes and fears may also arise due to the cultural (...) embeddedness of technology, where a therapy due to ethical, social, political and religious concerns could be perceived as either a blessing or a threat. While Deep Brain Stimulation (DBS) for treatment resistant depression (TRD) is still in its cradle, it is important to be proactive and try to scrutinize both surfacing hopes and fears. Patients will not benefit if a promising treatment is banned or avoided due to unfounded fears, nor will they benefit if DBS is used without scrutinizing the arguments which call for caution. Hence blind optimism is equally troublesome. We suggest that specificity, both in terms of a detailed account of relevant scientific concerns as well as ethical considerations, could be a way to analyse expressed concerns regarding DBS for TRD. This approach is particularly fruitful when applied to hopes and fears evoked by DBS for TRD, since it can reveal if our comprehension of DBS for TRD suffer from various biases which may remain unnoticed at first glance. We suggest that such biases exist, albeit a further analysis is needed to explore this issue in full. (shrink)

La 4e de couverture indique : "Du Mutterrecht, l'oeuvre majeure de Bachofen, Walter Benjamin écrivait qu'il s'agissait d'une « prophétie scientifique ». De prime abord, il s'agit là d'une étrange définition pour un ouvrage qui, loin de se tourner vers l'avenir et d'en délinéer les formes, explore les confins du passé pour esquisser, par le biais de l'étude des mythes, le contour de l'origine de nos sociétés. La pensée de Bachofen est prophétique car révolutionnaire, et par là même porteuse de (...) fruits pour l'avenir. Il a en effet avancé une thèse bouleversante : les premières sociétés humaines auraient été régies par un droit maternel, l'organisation patriarcale n'étant qu'une forme plus avancée, certes, mais plus tardive de l'évolution spirituelle et sociale de l'humanité. Sa pensée permet ainsi de réfléchir à la prégnance de l'opposition masculin/féminin, maternel/paternel dans les fondements mêmes de nos sociétés, mais aussi de considérer l'importance que la notion d'origine, et la représentation, pour erronée qu'elle soit, qui en est faite, revêt pour la construction et le maintien de la société et de ses structures. C'est bien là une réflexion avec laquelle, aux dires de Bachofen lui-même, « on n'est pas prêt d'en finir ».". (shrink)

Dans la pensée de Walter Benjamin, le mythe est-il seulement une source de danger et de séduction contre laquelle l'homme moderne devrait se protéger à tout prix? Par une approche qui convoque la philosophie, l'anthropologie et la sociologie, ce livre montre que la réponse à cette question est loin d'être tranchée. Le diagnostic que, au fil de ses oeuvres, Benjamin dresse sur l'appauvrissement de l'expérience moderne est de fait indissociable du problème posé par le mythe, en tant que porteur d'un (...) savoir que la modernité ne sait plus reconnaître et encore moins accepter. La confrontation avec Scholem et Kafka indique que, pour Benjamin, ce savoir relève du langage et participe de ce récit grâce auquel l'individu peut penser son existence au sein d'une histoire commune, d'une tradition avec laquelle la modernité semble toutefois vouloir en finir. (shrink)

The article discusses a relatively obscure but significant aspect of work of the Russian and Soviet thinker Alexander Bogdanov—his science fiction novels. The author points out that, using the form...

O objetivo deste artigo é apresentar uma argumentação sobre a possibilidade de se pensar a justiça como uma experiência do i m possível. Parte-se da distinção derridiana entre justiça e direito. Essa distinção trará algumas implicações no que tradicionalmente é entendido como ética. Partindo do jogo ou da différance marcada entre a presença/ausência, pretende-se estabelecer um ponto de diálogo entre Derrida e Levinas. O ponto de aproximação é a questão do terceiro na relação do face a face. Nesse sentido, problematiza-se (...) se a desconstrução pode ser adotada como um possível modo filosófico que fundamente a compreensão da justiça. (shrink)

This article maps out the lexical landscape of precision from the late seventeenth to the early eighteenth century and investigate the various meanings of precision, both as a word and a concept, within the Paris Observatory and beyond. It argues that precision was first an attribute of instruments supposed to produce numerical measurements, like clocks and divided circles or sectors attached to optical devices. Less often, precision was applied to observers, the handling of instruments, and observational methods, including mathematical corrections (...) applied to raw data. When all these aspects were combined the numerical result finally was also deemed to be precise. Moving to the debate about the shape of the Earth that shook the Academy of Sciences in the 1730s, it follows the way in which wider audiences were conveyed the various meanings of precision. Between the Cartesian resistance to the emergence of a professional science of precision and the pedagogical approach followed by the Newtonians such as Maupertuis, it argues that Cassini III embraced the professionalism of modern science, but did not feel that methodological precision was out of the reach of an educated public. While Maupertuis has seemed content with a discussion focusing on the precision of instruments and results, Cassini III set himself the hefty task of producing an accessible account of precision as a method of inquiry. (shrink)

Jeffery Aubin,Dianne Cole,Julio Cesar Dias Chaves,Jonathan von Kodar,Anne-France Morand,Timothy Pettipiece,Paul-Hubert Poirier,Martin Voyer,Eric Crégheur.

Jeffery Aubin,Julio Cesar Dias Chaves,Steve Johnston,Louis Painchaud,Anne Pasquier,Paul-Hubert Poirier,Jennifer Wees,Eric Crégheur.

Jeffery Aubin | : Les Diuinae institutiones de Lactance sont souvent citées lorsqu’il s’agit d’analyser le passage du mot religio de la langue latine à la pensée du christianisme. On ne doit toutefois pas lire ce texte du ive siècle de notre ère avec la conception moderne du mot religion. Les sociologues du xxe siècle ont élaboré des définitions de la religion à partir de l’opposition sacré/profane, mais cette dichotomie n’est toutefois pas une catégorie interprétative valide dans l’ouvrage de (...) Lactance. Non seulement il oppose ces deux notions que très rarement, mais la conception de sacer et de profanus diffère des définitions qui se sont imposées depuis un siècle. L’utilisation de concepts modernes pour l’analyse des Diuinae institutiones constitue dès lors un frein à la compréhension des notions de religion, sacré et profane dans l’ouvrage de Lactance. | : The Diuinae institutiones of Lactantius are often referred to when analyzing the transition of the word religio from Latin to Christian thought. However, one should not read this fourth century A.D. text with the modern definition of religion in mind. Twentieth century sociologists put forth definitions of religion based on the sacred-profane opposition, but this dichotomy is not a valid category for the interpretation of religio in the book of Lactantius. Not only does he scarcely oppose these two terms, but also the very notion of sacer and profanus differ from the received definitions of the last century. Therefore, the use of modern concepts is a stumbling block for the understanding of the terms religion, sacred and profane in the Diuinae institutiones of Lactantius. (shrink)

The ability to improve in speed and accuracy as a result of repeating some task is an important hallmark of intelligent biological systems. Although gradual behavioral improvements from practice have been modeled in spiking neural networks, few such models have attempted to explain cognitive development of a task as complex as addition. In this work, we model the progression from a counting-based strategy for addition to a recall-based strategy. The model consists of two networks working in parallel: a slower basal (...) ganglia loop and a faster cortical network. The slow network methodically computes the count from one digit given another, corresponding to the addition of two digits, whereas the fast network gradually “memorizes” the output from the slow network. The faster network eventually learns how to add the same digits that initially drove the behavior of the slower network. Performance of this model is demonstrated by simulating a fully spiking neural network that includes basal ganglia, thalamus, and various cortical areas. Consequently, the model incorporates various neuroanatomical data, in terms of brain areas used for calculation and makes psychologically testable predictions related to frequency of rehearsal. Furthermore, the model replicates developmental progression through addition strategies in terms of reaction times and accuracy, and naturally explains observed symptoms of dyscalculia. (shrink)

We obtain a large class of significant examples of n-random reals (i.e., Martin-Löf random in oracle $\varphi ^{(n - 1)} $ ) à la Chaitin. Any such real is defined as the probability that a universal monotone Turing machine performing possibly infinite computations on infinite (resp. finite large enough, resp. finite self-delimited) inputs produces an output in a given set O ⊆(ℕ). In particular, we develop methods to transfer $\Sigma _n^0 $ or $\Pi _n^0 $ or many-one completeness results of (...) index sets to n-randomness of associated probabilities. (shrink)

Jeffery Aubin ,Marie Chantal ,Dianne Cole ,Julio Chaves ,Cathelyne Duchesne ,Christel Freu ,Steve Johnston ,Brice Jones ,Amaury Levillayer ,Stéphanie Machabée ,Paul-Hubert Poirier ,Philippe Therrien ,Jonathan von Kodar ,Martin Voyer ,Jennifer Wees ,Eric Crégheur.

Jeffery Aubin,Serge Cazelais,Marie Chantal,Julio Cesar Dias Chaves,Cathelyne Duchesne,Steve Johnston,Louis Painchaud,Paul-Hubert Poirier,Tuomas Rasimus,Gaëlle Rioual,Maryse Robert,Eric Crégheur.

Body representations are known to be dynamically modulated or extended through tool use. Here, we review findings that demonstrate the importance of a user's tool experience or expertise for successful tool embodiment. Examining expert tool users, such as individuals who use tools in professional sports, people who use chopsticks at every meal, or spinal injury patients who use a wheelchair daily, offers new insights into the role of expertise in tool embodiment: Not only does tool embodiment differ between novices and (...) experts, but experts may experience enhanced changes to their body representation when interacting with their own, personal tool. The findings reviewed herein reveal the importance of assessing tool skill in future studies of tool embodiment. (shrink)