The aim of this paper is to investigate the role of water stress on plants production. We propose a mathematical model for the dynamics growth of plants that takes into account the concentration of available water in the soil, water stress, plant production and plants compensation. Sensitivity analysis of the model has been performed in order to determine the impact of related parameters on the dynamics growth of plants. We present the theoretical analysis of the model with and without water (...) stress. More precisely, we show that the full model is well-posedness. For each model, we compute the trivial equilibria and derive two thresholds parameters that determine the outcome of water stress within a plantation. Further, we perform numerical simulation on the case of banana-plantain simulations to support the theory. We found that the Hopf bifurcation occurs for a specific value of the water absorption rate of unstressed plants. The impact of the water stress on the banana-plantain production is also numerically investigated. After, the role of the water stress on the plant production is numerically investigated. We found that the water stress can cause about 68.16% of loss of banana-plantain production within a plantation with 1600 rejets initially planted. This suggests that climate change plays a detrimental role on banana-plantains production. (shrink)

Argentina fue el primer país del mundo en establecer que los organismos que resulten de nuevas técnicas de edición genética (GE, en sus siglas en inglés) no estarán alcanzados por la normativa para Organismos Genéticamente Modificados (OGM), siempre y cuando una primera evaluación concluya que no incluye ADN de otra especie. Esto es relevante porque las evaluaciones para comercializar un OGM son tan extensas y costosas que solo son accesibles para unas pocas empresas multinacionales, que monopolizan la innovación fundamental, las (...) licencias y los productos derivados. Esta simplificación regulatoria coincide con el descubrimiento de técnicas como CRISPR-Cas9, mucho más baratas y simples que las previas, y con potencial para desarrollarse con reducidos presupuestos de investigación. Este trabajo indaga cómo el Estado argentino utiliza la legislación sobre biotecnología para fomentar la investigación, el desarrollo y la innovación (I+D+i), indagando en los límites y posibilidades de esta estrategia. Para ello se basa en la legislación y las políticas públicas competentes; observaciones en reuniones y conferencias biotecnológicas; y en entrevistas semi-estructuradas realizadas durante 2019 a científicos y empresarios que trabajaban con CRISPR. Así, encuentra que la legislación opera como fomento para los desarrollos locales, pero las ventajas que ofrecen las nuevas técnicas de edición genética dependen de una serie de acciones y estrategias geopolíticas. Entendiendo por regulación al conjunto de acciones y omisiones de los actores interesados, a escala mundial y con intereses contrapuestos, la investigación concluye que es esta regulación geopolítica la que condiciona la innovación biotecnológica en Argentina. Así, la posibilidad de aprovechar esa “ventana de oportunidad” que habilitan las nuevas técnicas descansa en una serie de variables que configuran nuevas relaciones de interdependencia global. (shrink)

Boundary Images investigates the political, material, and visual work that images do to cross and blur the boundaries between the technological and biological and between humans, machines, and nature. Exploring the limits of the visual and beyond what can be seen, Boundary Images posits these boundaries as starting points for the production of new and radically different ways of knowing about the world.

En la tradición preplatónica el poeta tiene cierta inspiración, cierto don que le permite acceder a cierto tipo de conocimiento proporcionado por la Musa y a la vez posee una técnica que le permite transmitir ese conocimiento a su público. En el Ion, Platón aborda el problema de la relación entre inspiración y téchne en la poesía y concluye que no pueden ir juntas. El presente artículo se propone analizar los pasajes de Homero donde aflora su propia poética para mirar (...) el origen de la tradición que une inspiración y téchne, y examinar luego por qué para Platón es inaceptable esa posición y las consecuencias que ello trae para la valoración de lo literario. (shrink)

Este artigo apresenta o conceito de ideologia em A ideologia alemã, de Marx e Engels, a partir da relação entre a inversão real gerada pela divisão do trabalho e a inversão ideológica, considerando o problema de a ideologia ser caracterizada como a inversão da realidade das relações de produção ao mesmo tempo que a expressão dessas mesmas relações. Por meio da análise do conceito procura-se reavaliar a importância dos manuscritos inacabados de “I. Feuerbach”, tendo em vista que a discussão bibliográfica (...) mais recente atribui ao texto um caráter menor se comparado ao capítulo dedicado a Stirner. (shrink)

Ayda Ignez Arruda was a key figure in the development of the Brazilian school of Paraconsistent logic and the first person to write a historical survey of the field. Despite her importa...

The fate of women in times of war has always been considered something a non-issue, buried as it was, and made banal as part and parcel of the lot of civilian population in general, since women were non-combatants. But looking at more recent conflicts we can no longer pretend that women are in a home front of sorts, as opposed to soldiers in battle, because there is no home front anymore, and women are now right in the middle of armed (...) conflicts, as, for instance, in Algeria and in Bosnia. (shrink)

In its effort « to reconsider the sexist and racist biases that lead to ignore the fundamental role played by migrant women in our society s, this collection of articles stresses both the invisibilization and the ethnicization of the work performed by migrant women, as it is inscribed within the sexual division of labor. The analyses provided here cover various European countries, Spain, France, Italy.

L’article part du contemporain et de ce qui en affecte le religieux, un effondrement des médiations sociales et la montée de religiosités privées vivant d’un rapport direct à la vérité. Il reprend ensuite certains des motifs en cause, décalant les oppositions reçues. Ainsi sur les médiations, à repenser en lien à ce que sont tant le religieux que le social, sur l’extériorité, à repenser en lien à ce qu’est le sujet, sur ce qu’est une tradition, à repenser comme cristallisation culturelle (...) et institutionnelle d’une voie d’accomplissement de l’humain, à investir et valider comme telle, hors système auto-référencié. L’article fait enfin retour sur ce qu’il en est du christianisme, dans sa consistance propre, en principe faite d’une suite d’acculturations au creux des sociétés et des cultures, et vivant d’instances diverses et irréductibles. L’article y reprend le motif de l’expérience dite religieuse et en rapport à ce qui peut être une transcendance, mais cristallisée en corps à corps avec le monde et ce qui s’en éprouve et s’en dit, une expérience alors féconde, mais ainsi seulement. (shrink)

Miguel de Cervantes, no último capítulo de sua obra O engenhoso fidalgo Dom Quixote de La Mancha, retrata o falecimento de seu protagonista, decorrente de uma profunda tristeza. O cavaleiro, depois de vencido, sente-se obrigado a retornar ao seu povoado e a renunciar à cavalaria andante, o que lhe causa a transformação de sua realidade e de seu estado mental - da loucura à cordura -, além do seu direcionamento à morte. Assim como faz Cervantes no início do século XVII, (...) Espinosa, ao final do mesmo século, também parece estabelecer analogias entre as ideias de transformação e morte, ao apontar, em sua Ética, a relação entre a natureza do ser e sua proporção de movimento e repouso, responsável pelas inconstâncias humanas. A partir de tais considerações, este trabalho pretende aproximar o último capítulo da obra Dom Quixote à proposição 39 da Quarta Parte da Ética espinosana, de forma a ressaltar as devidas semelhanças entre o conceito de morte como transformação, retratado tanto pelo escritor espanhol quanto pelo filósofo holandês, uma vez que a morte, para ambos, demonstra estar vinculada à mesma ideia. (shrink)

Facing israelian intransigent Ilan Halevi explain the failure of Oslo’s agreement, from the first intifada to the second. The archaic structure of Israel in front of pluriethnic and multi-denominational society, holds only because the society defines as being in war. There is only an international intervention which can prevent, the risk to pass of hundred deaths to thousand deaths... This intervention is necessary, only because it can realize for the Israeli opinion which it is impossible to settle question by force. (...) The Israelis do not stop saying « we shall not negotiate under the fire », but Palestinians always knew that they are making peace, under the fire, colonial and military violence never broke off. (shrink)

This introduction specifies the context in which the texts that make up the dossier were written, presents them and outlines their respective main axes. In a second, more distant phase, it opens up three critical questions, linked to what Joas proposes and aiming to continue the discussion on what is at stake at the social, political and religious levels. It welcomes the aim of a 'self-reflection of social and cultural sciences on their biological bases and normative contents' in relation to (...) historically determined social and political problems. It underlines the anthropological substratum explored by the Joassian approach, which aims to highlight what is at stake between the individual and social bodies, the singular creativities of human action, and the social structures and dynamics. It is under this horizon that the three questions that mark a gap with Joas' work emerge. The first one focuses on the games between body and overcoming, and what is mobilised there, where collective organisation that is not reducible to politics alone and to what would be proper to it, takes shape. The second returns to the question of rite, to evoke its importance at the heart of our worldly activities, in a secular and non-religious mode. The third part takes up the strictly religious question, questioning how Joas deals with the modern differentiation of social spheres, as well as the absence, in his work, of a critical analysis of religions in their traditions, with all the pathologies that may run through them. (shrink)

Este artículo se propone analizar las prácticas sociales y culturales de dos colectivos de migrantes en dos países latinoamericanos: el caso de los inmigrantes argentinos en Chile y de los inmigrantes senegaleses en Argentina. Comprendemos que estas prácticas tienen como trasfondo el encuentro entre compatriotas y apelan a la creatividad y espontaneidad en el contexto de integración a la sociedad de destino, contribuyendo a formar redes y lazos sociales quizás antes no existentes. Estas actividades creativas y re-creativas contribuyen a la (...) configuración de la identidad nacional en un contexto migratorio, a la vez que tienen en común surgir de manera espontánea, sin planificación previa, e ir configurando una red de relaciones que consolidan tanto la “identidad argentina” como la “identidad senegalesa” en el contexto migratorio de recepción. (shrink)

Este ensaio debate os conceitos de afeto e vontade no trabalho docente e seus vínculos com o “voluntarismo pedagógico” presente em diversas concepções e políticas sobre a educação de crianças. Utiliza-se da doutrina espinosana dos afetos e também da noção de trabalho estranhado nos Manuscritos Econômico-Filosóficos de Marx para uma meditação sobre o perfil sociológico dos professores da educação básica brasileira. Suas considerações finais ressaltam a importância de Espinosa na crítica do “domínio absoluto dos afetos” e análise das atuais condições (...) nas quais se realiza o trabalho docente, apresentando pontos de convergência – e uma possível divergência – com relação a ideias de Mészáros na busca de uma educação “para além do capital”. (shrink)

Departing from and closing with reflections on issues regarding teaching practices of philosophy of mathematics, I propose a comparison between the main features of the Leibnizian notion of symbolic knowledge and some passages from the Tractatus on arithmetic. I argue that this reading allows (i) to shed a new light on the specificities of the Tractarian definition of number, compared to those of Frege and Russell; (ii) to highlight the understanding of the nature of mathematical knowledge as symbolic or formal (...) knowledge that Wittgenstein mobilizes in his book; (iii) to offer reasons for the claim that Wittgenstein can be considered the philosopher of mathematical practice avant la lettre. The paper ends with an overview, a return to the initial reflection on the connections between research and teaching, and a defense of the reading key used here in terms of its potential for the research in philosophy of mathematics. (shrink)

We offer a reading of some passages from Wittgenstein’s Tractatus Logico-Philosophicus in which, dealing with the symbolic constructions of arithmetic, Wittgenstein puts in motion the most outstanding features of Leibniz’s concept of Symbolic Knowledge: the computational and the “ecthetic” functions of the notion of Symbolic Blind Though. We begin with a brief presentation of some conceptual distinctions proposed by Oscar Miguel Esquisabel in his investigation about the Leibnizian origin of the tradition of Symbolic Knowledge. We then contrast these topics with (...) the way Pasquale Frascolla interprets those same Tractarian passages, emphasizing the way in which he suspends any relevant sense in which we could speak about formal knowledge in Wittgenstein’s opera. To make our criticism better suited, our projection of Leibnizian lights into the Tractatus and into Frascolla’s interpretation of it is assisted with a concise exposition of one historical development in the Leibnizian tradition. Grounded in a study in which Javier Legris retraces the features of Symbolic Blind Though in Frege’s works, we then conclude proposing the advantages of our approach. (shrink)

Ce texte sanctionne la double existence de la théologie d’une part, des sciences des religions de l’autre. Cette dualité est non dépassable, pour des raisons de fond relatives aux « intérêts » humains et sociaux en cause à chaque fois. Mais cette dualité peut être féconde pour chacune. Moyennant bien sûr qu’on les repense, l’une comme l’autre. Ce à quoi s’exerce la présente contribution. Qui précise au final en quoi la théologie, ainsi repensée, peut être riche d’enseignements pour les sciences (...) des des religions, et en quoi les sciences des religions sont pleines de richesses humaines instructives pour le travail et la réflexion théologiques, tout en étant en même temps un lieu de défis et une occasion de déplacements qui ne peuvent qu’en relancer la réflexion. (shrink)

Résumé Au xix e siècle naît une nouvelle éthique professionnelle du créateur qui remet en cause l’association du Beau, du Bien et du Vrai sur laquelle reposait l’esthétique classique. La séparation entre l’art et la morale s’opère au nom de deux valeurs, le Beau et le Vrai, qui s’autonomisent par l’intermédiaire du développement de l’esthétique et de la science. En littérature, elle est l’œuvre des deux grands courants romanesques de la première moitié du xix e siècle, le romantisme et le (...) réalisme. De ces deux courants, Flaubert opère une synthèse originale, qui lui vaut d’être traduit en justice. (shrink)

O livro reúne textos apresentados no II Workshop de Filosofia e Ensino, realizado na UFRGS em 2015, com a temática "Epistemologia e Currículo" -/- .

This paper explores political engagement by Guatemalans who seasonally migrate to Canada as contracted agricultural workers. Since 2003, an ever-increasing number of Guatemalans have pursued economic opportunities in Canadian fields and greenhouses as participants in a labour migration scheme brokered by the International Organization for Migration called the Temporary Agricultural Workers to Canada Project. While some describe this labour migration as a win-win situation for employers and migrant workers, for too many of these migrants, work in Canada has demanded sacrifices (...) and losses, not the least of which of their human rights and dignity at the hands of employers and administrators of the TAWC Project. While there is a great deal at stake for these migrants should they denounce mistreatment, given the climate of fear created by the employer-driven nature of the TAWC project, a growing number of them have been pushed to do so. With the support of allies that encourage political empowerment of migrant workers, black-listed Guatemalans have formed a political advocacy group - Asociación de Guatemaltecos Unidos por Nuestros Derechos - aimed at fighting for the realization of their rights and redressing cases of wrongdoing. Based on workers’ testimonies and other institutional interviews, this paper outlines the difficulties workers have experienced as labour migrants to Canada, the context of vulnerability that largely impedes them from denouncing mistreatment, and the development and activities of AGUND. Informed by literature on political organizing, it also identifies the factors that have both impeded and encouraged political activity on the part of these disenfranchised yet determined Guatemalan workers. (shrink)

In diesem Aufsatz wird der Versuch unternommen, bestimmte Veränderungen im zeitgenössischen französischen literarischen Feld unter den drei Gesichtspunkten der mechanischen Kausalität (Produktionsbedingungen), der expressiven Kausalität (Weltanschauung und historische Narrative) und der strukturellen Kausalität (Feldeffekt) aufzugreifen und aus der Perspektive der longue durée neu zu vermessen. Die Marginalisierung der experimentellen Literatur im Feld des Verlagswesens aufgrund der Konzentrationen und des steigenden Rentabilitätsdrucks hat zu einer Repolitisierung dieser Literatur geführt, die jedoch nicht deren Heteronomisierung impliziert, da sie über einen Prozess formaler Entscheidungen (...) und des Schreibens entsteht, in dessen Verlauf es zu einem Dialog mit der Geschichte des Feldes und zur Hinterfragung der Position und Rolle von Schriftsteller*innen in einer Gesellschaft kommt, in der das Storytelling den öffentlichen Raum erobert. (shrink)

Resumo O propósito deste texto é mostrar que os problemas enfrentados por Merleau-Ponty, ao longo de seu percurso de pensamento, decorrem dos pressupostos dicotômicos dos quais ele parte. Assim, procuramos trazer à tona outras consequências de se assumir tal pressuposto, o do primado de uma experiência perceptiva muda como solo natal de todas as outras modalidades da experiência. Para tanto, tomam-se em consideração tanto a primeira como a segunda fase do pensamento de Merleau-Ponty.Our purpose is to show that the problems (...) faced by Merleau-Ponty throughout his path of thought arise from the dichotomous assumptions from which he begins. Thus, we seek to shed light on the other consequences of assuming a presumption such as the primacy of a mute perceptual experience as the native soil of all other experience’s modes. Therefore, the first as well as the second phases of Merleau-Ponty’s thought are taken into account. (shrink)

Considerando retrospectivamente os desdobramentos da filosofia, é possível observar que, antes de reconhecer e reafirmar as singularidades de seu exercício, o discurso filosófico tem sua origem intimamente associada à poesia. Evidenciando alguns momentos de cisão e outros momentos de contato entre o discurso poético e o discurso filosófico, o presente ensaio visa abordar e refletir sobre o diálogo entre esses dois discursos ao longo do tempo. Nesse horizonte, consideraremos estrategicamente os trabalhos de autores como Homero, Platão, Goethe, F. Schlegel e (...) Schelling, a fim de evidenciar as oscilações e salientar alguns movimentos específicos dentro desse longo diálogo. (shrink)

El presente artículo intentará atravesar una pequeña parte de la cartografía afectiva spinozista. Nos detendremos en la idea de imitación afectiva, momento en el que la categoría de otro - expresión de la exterioridad - se presenta como un desconocido de quien, a pesar de no haber tenido un encuentro específico, podemos sentirnos afectados. Desandar los caminos de la mimesis afectiva nos permite establecer un origen social afectivo que como tal descubrirá la importancia que tienen los afectos en la vida (...) en común de los hombres. En otros términos, mostraremos el rol esencial que posee la vida afectiva en el origen de la comunidad a partir de una primera unión producto de un afecto común. (shrink)

O presente texto refere-se à trajetória de três homens. Eles nasceram na mesma época, mas viveram cada um em uma cidade distinta. Um morava em Fortaleza, no Ceará, outro em Lisboa e o terceiro no Rio de Janeiro. O que os unia? Livros. Os três tiveram suas vidas marcadas pela edição, impressão e comercialização de livros e relacionadas, particularmente, pela publicação de uma coleção de livros: a Biblioteca do Povo e das Escolas. É dessa coleção e de como ela se (...) associa à vida desses três homens que este texto trata. É urna história que liga Lisboa, Rio de Janeiro e Fortaleza e que mostra que ainda há muito a se descobrir e percorrer nos caminhos dos livros no século XIX. (shrink)

O texto fornece distinções conceituais engendradas desde uma perspectiva para o ensino de filosofia que contempla, em seu horizonte, o projeto a construção de uma didática mínima da lógica para o ensino médio. Após a apresentação de alguns aspectos positivos da referida perspectiva são indicadas duas maneiras usuais de compreender e praticar o ensino de lógica. O objetivo central do texto é mostrar como, desde a perspectiva inicialmente esboçada, os esclarecimentos conceituais propostos podem sugerir caminhos interdisciplinares para a didática da (...) lógica sem perda da especificidade da disciplina. The text provides some conceptual distinctions generated from a perspective on teaching philosophy according to which the project of a "didactica minima" for logic in high schools is contemplated. After a brief presentation of some positive aspects of the perspective from which the distinctions are proposed, two common ways of teaching logic are considered. The aim of the paper is to show how the perspective proposed can clarify some topics on the issue of teaching logic in an interdisciplinary way, without losing the specifics of the discipline. (shrink)

Infléchissant le propos de J.-L. Chrétien en passant du " dire " au " lire ", et en congédiant l' " autorité " ainsi que le qualificatif " Saintes " impliqués dans l'article du philosophe, P. Gisel pose la question de savoir en quoi ce livre - l'Ecriture ou les Ecritures - est " Parole de Dieu ", peut-être " en quoi " il est d'abord Parole, et ensuite, plus radicalement, " Parole de Dieu ". Or, les Ecritures sont et (...) restent de bout en bout humaines, historiquement situées, culturellement et religieusement déterminées. Second, par rapport au Christ qui n'a pas laissé d'écrits, le corps des Ecritures est donc lieu de médiation donné et irréductible, comme la canonisation d'Ecritures est un fait institutionnel, donc instaurateur. Justement, le " regard " porté au nom de la sainteté et de l'inspiration et donc de la logique croyante ne peut porter que sur l'ordre " tiers " d'une symbolisation religieuse, inscrite dans l'histoire déterminée d'une canonisation institutionnelle.Modifying the position of J.-L. Chrétien by moving from "saying" to "reading," and dismissing the "authority" as well as the descriptive term "Holy" implied in the philosopher's article, P. Gisel raises the question as to how this book-the Scripture or the Scriptures-is the "Word of God," perhaps "how" it is first the Word, and later, more radically, the "Word of God." But the Scriptures are and remain human from beginning to end, historically situated, culturally and religiously determined. Secondly, in relation to Christ who did not leave writings, the body of the Scriptures is, then, the place of given and irreducible mediation, just as the canonization of the Scriptures is an institutional, and hence founding, fact. When a "look" is taken in the name of holiness and inspiration and therefore of the logic of the believer, it can only be concerned with the "outside" order of a religious symbolism that appears in the determinate history of an institutional canonization. (shrink)

Pensée et action sont articulées chez Canguilhem. Si on les inscrit dans le contexte de l’entre-deux-guerres et en les comparant aux trajectoires de contemporains tels que Cavaillès, Rougier et Sartre, l’engagement de Canguilhem pendant la guerre, ainsi que la forme d’action choisie deviennent intelligibles, si, évitant l’essentialisme, on les analyse à la lumière de la notion de disposition, de l’appartenance à des réseaux de sociabilité et de son âge, éléments qui guident autant la propension à prendre des risques que le (...) contenu de ses prises de position. (shrink)

Bourdieu's concept of the literary field aimed to overcome the opposition between internal and external analysis of literary works. This paper examines its theoretical and methodological implications by exploring the notion of mediations between text and context at three different levels: the material conditions of production and circulation of literary works; the modalities of their production by their authors; their critical reception. It is through these mediations that the key concept of autonomy becomes operational for empirical research and that it (...) displays its heuristic power, as illustrated by works using Bourdieu's theory of the literary field produced over the last two decades. (shrink)