Climate change is a threat to food system stability, with small islands particularly vulnerable to extreme weather events. In Puerto Rico, a diminished agricultural sector and resulting food import dependence have been implicated in reduced diet quality, rural impoverishment, and periodic food insecurity during natural disasters. In contrast, smallholder farmers in Puerto Rico serve as cultural emblems of self-sufficient food production, providing fresh foods to local communities in an informal economy and leveraging traditional knowledge systems to manage varying ecological and (...) climatic constraints. The current mixed methods study sought to document this expertise and employed a questionnaire and narrative interviewing in a purposeful sample of 30 smallholder farmers after Hurricane María to identify experiences in post-disaster food access and agricultural recovery and reveal underlying socioecological knowledge that may contribute to a more climate resilient food system in Puerto Rico. Although the hurricane resulted in significant damages, farmers contributed to post-disaster food access by sharing a variety of surviving fruits, vegetables, and root crops among community members. Practices such as crop diversification, seed banking, and soil conservation were identified as climate resilient farm management strategies, and smallholder farmer networks were discussed as a promising solution to amass resources and bolster agricultural productivity. These recommendations were shared in a narrative highlighting socioecological identity, self-sufficiency, community and cultural heritage, and collaborative agency as integral to agricultural resilience. Efforts to promote climate resilience in Puerto Rico must leverage smallholder farmers’ socioecological expertise to reclaim a more equitable, sustainable, and community-owned food system. (shrink)

Gaze following is the ability to use others’ gaze to obtain information about the environment. As such, it may be highly adaptive in a variety of socio-ecological contexts, and thus be widespread across animal taxa. To date, gaze following has been mostly studied in primates, and partially in birds, but little is known on the gaze following abilities of other taxa and, especially, on the evolutionary pressures that led to their emergence. In this study, we used an experimental approach to (...) test gaze following skills in a still understudied taxon, ungulates. Across four species, we assessed the individual ability to spontaneously follow the gaze of both conspecifics and human experimenters in different conditions. In line with our predictions, species followed the model’s gaze both with human and conspecific models, but more likely with the latter. Except for guanacos, all species showed gaze following significantly more in the experimental conditions. Despite the relative low number of study subjects, our study provides the first experimental evidence of gaze following skills in non-domesticated ungulates, and contributes to understanding how gaze following skills are distributed in another taxon—an essential endeavor to identify the evolutionary pressures leading to the emergence of gaze following skills across taxa. (shrink)

Tarski's theory of truth brings out the question of whether he intended his theory to be a correspondence theory of truth and whether, whatever his intentions, his theory is, in fact, a correspondence theory. The aim of this paper is to answer both questions. The answer to the first question depends on Tarski's relevant assertions on semantics and his conception of truth. In order to answer the second question Popper's and Davidson's interpretations of Tarski's truth theory are examined; to this (...) end both Tarski's definition of truth in terms of satisfaction and the T-sentences are taken into account. (shrink)

Nature, God and Humanity clarifies the task of forming an ethics of nature, thereby empowering readers to develop their own critical, faith-based ethics. Calling on original, thought-provoking analyses and arguments, Richard L. Fern frames a philosophical ethics of nature, assesses it scientifically, finds support for it in traditional biblical theism, and situates it culturally. Though defending the moral value of beliefs affirming the radical Otherness of God and human uniqueness, this book aims not to compel the adoption of any particular (...) ethic but rather illumine the contribution diverse forms of inquiry make to an ethics of nature. How does philosophy clarify moral conviction? What does science tell us about nature? Why does religious faith matter? Rejecting the illusion of a single, rationally-compelling ethics, Fern answers these questions in a way that fosters both agreement and disagreement, allowing those holding conflicting ethics of nature to work together for the common good. (shrink)

The nonlinear differential equation governing the periodic motion of the one-dimensional, undamped, and unforced cubic-quintic Duffing oscillator is solved exactly by obtaining the period and the solution. The period is given in terms of the complete elliptic integral of the first kind and the solution involves Jacobian elliptic functions. We solve the cubic-quintic Duffing equation under arbitrary initial conditions. Physical applications are provided. The solution to the mixed parity Duffing oscillator is also formally derived. We illustrate the obtained results with (...) concrete examples. We give high accurate trigonometric approximations to the Jacobian function cn. (shrink)

What makes political power legitimate? Without legitimation, subjects will not accept power, and, since religion permeated medieval society, religion became foundational to philosophical legitimations of political power. In 2013, the XIX Annual Colloquium of the International Society for the Study of Medieval Philosophy took place in Alcalá de Henares, one of the medieval centers of political debate within and between Jewish, Christian and Muslim communities. The members of these communities all shared the common belief that God constitutes the remote or (...) proximate cause of legitimation. Yet, beyond this common belief, they differed significantly in their points of departure and how their arguments evolved. For instance, the debate among Western Christians in the conflict between secular power and Papal authority sowed the seeds for a secular basis of legitimacy. The volume reflects the results of the colloquium. Many contributions focus on key Christian thinkers such as Marsilius of Padua, Thomas Aquinas, John Quidort of Paris, Giles of Rome, Dante, and William of Ockham; other studies focus on major authors from the Jewish and Muslim traditions, such as Maimonides and Alfarabi. Finally, several papers focus on lesser-known but no less important figures for the history of political thought: Manegold of Lautenbach, Ptolemy of Lucca, Guido Terrena, John of Viterbo, Pierre de Ceffons, John Wyclif and Pierre de Plaoul. The contributions rely on original texts, giving the readers a fresh insight into these issues. (shrink)

In this work, we present a new approach to solve the location management problem by using the reporting cells strategy. Location management is a very important and complex problem in mobile computing which aims to minimize the costs involved. In the reporting cells location management scheme, some cells in the network are designated as reporting cells . The choice of these cells is not trivial because they affect directly to the cost of the mobile network. This article is focused on (...) the use of high performance computing to execute a parallel heuristic that places optimally the RCs in a mobile network, minimizing its total cost. The main goal of this work is to demonstrate that the collaborative work of different evolutionary algorithms can obtain very good results. For this reason, we have implemented a parallel heuristic and six evolutionary algorithms that works in a parallel way on a cluster to solve the RCs problem. (shrink)

We report general and consensus results of a survey administered to a defined population of economic science academics in Mexico. Our results include insights on economic opinions, scientific aspects of economics, scientific activities, countries' economic performances and methodological orientation. Our outcomes show areas of consensus which, at least partially, are consistent with findings in previous studies. Comparisons between our results and those of other studies suggest that consensus could be constant over time and that economics academics in Mexico seems to (...) show similar levels of skepticism about the importance of rationality assumption as those in other latitudes. (shrink)

The contemporary debate that discusses whether the content of perceptual experience is or not conceptual claims I. Kant as its precursor. Surprisingly, both contenders in this debate do so. The Kantian non conceptualists, R. Hanna and L. Allais, among others, have support their arguments on Kant´s insistence on clearly separating intuitions and concepts and the faculties that make them possible, sensibility and understanding in order to emphasize that, once divided according to their functions, it makes sense to think that experience (...) emerges from the collaboration between those two faculties. In this paper I want to make an argument in favor of the non-conceptualist interpretation of Kant. In a nutshell, my argument goes as follows: If, as the Kantian conceptualists say, concepts already operate in sensibility, why would it be necessary to postulate an independent device that helps close the bridge between sensibility and understanding? Why is there a need for schematism? I will defend the legitimacy of that tertium as a mediator element that resolves the problem of the subsumption of particulars under concepts, and with that I will make an argument for the separability between intuitions and concepts. (shrink)

Fractal geometry offers a new approach to describing the morphology of fern leaves. Traditional morphology is based on the Euclidean concept of shape as an area defined by a boundary. This approach has not proven successful with fern leaves because they are so elaborate. Fractal geometry treats forms as relationships between parts rather than as areas. In fern fronds there are often constant relationships between parts. Four fractal methodologies for describing these relations within leaves are explored in this paper. These (...) include recursive line branching algorithms, iterated function systems (IFS), modifications of IFS, and L-systems. The methods are evaluated by comparing their results with measurements and appearances of various ferns. Fractal methods offer objective, quantifiable and succinct descriptions of fern-leaves. We conclude that fractal geometry offers simple descriptions of some elaborate fern shapes and that it will probably have application in investigating different aspects of ferns and other organisms. (shrink)

A inspiração positivista da revolução republicana de 1910 dificilmente se poderia harmonizar com os valores vigentes na sociedade portuguesa de então. Para compreender o seu êxito será necessário identificar as pontes esta-belecidade com orientações que lhe deveriam ser absolutamente estranhas, como era a do messianismo. A literatura da época, mormente a poesia de mais elevada inspiração, testemunha eloquentemente essa assimilação entre o ideal republicano e a esperança messiânica no advento de uma nova era redentora. Não menos significativa é, porém, a (...) construção teórica que, nesse mesmo sentido, foi elaborada por Sampaio Bruno. /// L'inspiration positiviste de la révolution républicaine de 1910 ne pourrait que difficilement s'harmoniser avec les valeurs régnant dans la société portugaise d'alors. Pour comprendre son succès il faudra reconnaître les ponts établis avec des orientations qui devraient lui être absolument étrangères, comme celle du messianisme. La littérature de l'époque, à savoir la poésie de la plus haute inspiration, est le témoin éloquent de cette assimilation entre l'idéal républicain et l'espérance messianique dans l'instauration d'une nouvelle ère rédemptrice. Non moins significative est cependant la construction théorique qui, en ce même sens, fut élaborée par Sampaio Bruno. /// The Republican revolution of 1910, inspired in positivism, was not harmony with the values which were dominant at that time in Portugal. In order to comprehend its success, one would have to establish its ties with themes that are quite foreign to positivism, like that of messianism. The literature of the epoch, especially in the poetry, bears witness to the assimilation of the republican ideal and the messianic hope in a new, redeeming era. In the context of this assimilation, Sampaio Bruno's theoretical construction can be seen as equally significant. (shrink)

Tradicionalmente el discurso narrativo, poético o mítico ha servido de vehículo para trasmitir contenidos de orden teológico y metafísico. Es decir, el concepto necesita de la representación para un mejor y más profundo desarrollo temático. Un caso ejemplar de este fenómeno lo encontramos en el llamado swedenborgismo literario, esto es, en la utilización de la figura de Emanuel Swedenborg como motivo y argumento en poetas y novelistas. La pregunta es si el swerdenborgismo literario es tan solo un pretexto estilístico o (...) bien obedece a razones de mayor calado filosófico o religioso. J. L. Borges se nos presenta como modelo de este planteamiento. (shrink)

'Caractère', 'densité', 'texture', 'bloc', 'trait', 'profil', 'figure' ou encore 'énergie'... : ces termes, s'ils sont souvent convoqués dans le discours musicologique se référant aux oeuvres des XXe et XXIe siècles, résistent à la clôture d'une définition. De telles notions mobilisent différentes dimensions de l'écriture mais aussi - et peut-être surtout - cherchent chacune à désigner un aspect qualitatif du musical, ce 'devenir illimité' du discours, difficile à neutraliser et à rationaliser. Le colloque organisé à l'Université Paris 8, intitulé 'Manières d'être (...) du musical', dont nous éditons aujourd'hui les actes, proposait ainsi de 'connaître l'individu à travers l'individuation plutôt que l'individuation à partir de l'individu' en interrogeant les outils compositionnels et les catégories qualitatives de l'écriture ayant pour fonction de différencier le musical en comportements ou manières d'être singuliers'"--Page 4 of cover. (shrink)

Resumo: Este artigo apresenta uma análise do processo de fabricação dos conceitos relacionados à técnica e à tecnologia na obra “O conceito de Tecnologia” de Álvaro Vieira Pinto. Primeiramente aborda-se os conceitos de máquina e de técnica e o modo como esses conceitos se conectam com o problema do “desenvolvimento” nacional. Em seguida explora-se o problema da ideologização da noção de “era tecnológica” e a relação do conceito de tecnologia com a ideologia dominante. Por fim a partir da metodologia do (...) ensino de filosofia por problemas, propõe caminhos possíveis para a introdução do ensino da filosofia da técnica e da filosofia da tecnologia no ensino médio profissional. Palavras-chave: Álvaro Vieira Pinto; Filosofia da Tecnologia; Ensino Médio Profissional; Filosofia Brasileira. Thinking about technique and technology with Álvaro Vieira Pinto: contributions to the teaching of philosophy in Technical High School: This paper analyzes the conceptualization of techcnique and technology in the book “The Concept of Technology” of Álvaro Vieira Pinto. The first section focus on the concepts of machine and technique and the connections with the “national developlment problem” in Vieira Pinto work. Then the text explores the ideological treatment of the concept of “Technological Era” and the relationship between technology and dominant ideology. In the end, guided by the methodology of teaching philosophy through problems, the last section proposes some paths to introduce the philosophy of technique and techonology in the practice of teaching Philosophy in the Technical High School. Key-words: Álvaro Vieira Pinto; Philosophy of Technology; Technical High School; Brazilian Philosophy. Penser la technique et la technologie avec Álvaro Vieira Pinto : contributions à l'enseignement de la philosophie dans l'enseignement technique secondaire Résumé: Cet article présente une analyse de les méthodes de fabrication de concepts liés à la technique et à la technologie dans l'ouvrage « Le concept de la Technologie » d'Álvaro Vieira Pinto. D’abord, les concepts de machine et de technique sont discutés, ainsi que la manière dont ces concepts sont liés au problème du « développement national». Ensuite, les problèmes de l'idéologisation de la notion d'« âge technologique » et de la relation du concept de technologie avec l'idéologie dominante sont explorés. Enfin, à partir de la méthodologie de l'enseignement de la philosophie par problèmes, on propose des pistes possibles pour introduire la philosophie de la technique et la philosophie de la technologie dans l'enseignement secondaire technique. Mots-clés: Álvaro Vieira Pinto; Philosophie de la Technologie; Enseignement Secondaire Technique; Philosophie Brésilienne. Data de registro: 13/10/2021 Data de aceite: 15/03/2022. (shrink)

IntroductionThe prefrontal cortex plays a crucial role in cognition, particularly in executive functions. Cortical reactivity measured with Transcranial Magnetic Stimulation combined with Electroencephalography is altered in pathological conditions, and it may also be a marker of cognitive status in middle-aged adults. In this study, we investigated the associations between cognitive measures and TMS evoked EEG reactivity and explored whether the effects of this relationship were related to neurofilament light chain levels, a marker of neuroaxonal damage.MethodsFifty two healthy middle-aged adults from (...) the Barcelona Brain Health Initiative cohort underwent TMS-EEG, a comprehensive neuropsychological assessment, and a blood test for NfL levels. Global and Local Mean-Field Power, two measures of cortical reactivity, were quantified after left prefrontal cortex stimulation, and cognition was set as the outcome of the regression analysis. The left inferior parietal lobe was used as a control stimulation condition.ResultsLocal reactivity was significantly associated with working memory and reasoning only after L-PFC stimulation. No associations were found between NfL and cognition. These specific associations were independent of the status of neuroaxonal damage indexed by the NfL biomarker and remained after adjusting for age, biological sex, and education.ConclusionOur results demonstrate that TMS evoked EEG reactivity at the L-PFC, but not the L-IPL, is related to the cognitive status of middle-aged individuals and independent of NfL levels, and may become a valuable biomarker of frontal lobe-associated cognitive function. (shrink)

Der vorliegende Band enthalt sechs teilweise stark iiberarbeitete Aufsatze, die in der Zeit zwischen der Niederschrift des Buches Theorienstrnkturen und Theoriendynamik, Springer-Verlag 1973, im folgenden mit [Theoriendynamik] bezeichnet, und der Monographie The Strncturalist View of Theories. A Pos­ sible Analogue of the Bourbaki Programme in Physical Science, Springer-Ver­ lag 1979, im folgenden kurz [Strnkturalismus] genannt, entstanden sind. In diesen Abhandlungen werden jeweils gewisse Aspekte des strukturalistischen Theorienkonzeptes behandelt. Am starksten iiberarbeitet wurden die Auf­ satze II, IV, V und VI, die (...) urspriinglich in englischer Sprache erschienen waren. Vier der sechs Arbeiten, namlich I, III, IV und VI, bilden auBerdem erweiterte Fassungen von Vortragen. Obwohl das zweite Buch [Strnkturalismus] durch P. Feyerabends ausftihr­ liche Diskussion der strukturalistischen Auffassung im British Journal for the Philosophy of Science, Dezember 1977, angeregt worden ist, stellt es seinem Ansatz und Aufbau nach eher den Versuch einer systematischen Kurzdarstel­ lung des strukturalistischen Vorgehens nach seinem letzten Stande dar. Dem­ gegeniiber entstanden die hier verOffentlichten Artikel stets aus einem ganz be­ stimmten AnlaB. Diese Anlasse konnte man schematisch in drei Klassen unter­ teilen: Entweder ging es darum, eine anschauliche intuitive Ein/iihrnng zu lie­ fern ; oder die Aufgabe bestand darin, die Beziehung zu anderen philosophischen Positionen. wie z. B. derjenigen L. Wittgensteins, H. Putnams, K. Poppers oder T. S. Kuhns. zu analysieren ; oder es sollte zu den wichtigsten und bis dahin verOffentlichten Kritiken Stellung bezogen wer­ den. (shrink)

Edmund Husserl intentó excluir supuestos metafísicos y ajustarse a lo dado en la experiencia inmediata, con el fin de buscar una verdad primera e indubitable sobre la cual basar verdades ulteriores, teóricas. Pero, en la segunda etapa de su pensamiento, él abandonó ese camino para usar, sin tematizarlo, el supuesto subjetivista de René Descartes. Para reconducir la fenomenología al proyecto original de ir a las cosas mismas, eliminando supuestos y ateniéndose a la experiencia inmediata, el lósofo español Antonio González Fernández (...) propone la praxeología. Esta aproximación reemplaza el concepto de sujeto, que considera al ser humano como una cosa pensante, por el de persona, entendida como acto encarnado. Esta definición antropológica, coherente con la visión teológica del ser humano como imagen y semejanza de Dios, posibilita orientaciones éticas de las acciones en pro de la descosificación y dignificación del ser humano y el cuidado de la naturaleza. (shrink)