The discovery of transgenes in maize landraces in Mexico, a center of diversity for this crop, raises questions about the potential impact of transgene diffusion on maize diversity. The concept of diversity and farmers’ role in maintaining diversity is quite complex. Farmers’ behavior is expected to have a significant influence on causing transgenes to diffuse, to be expressed differently, and to accumulate within landraces. Farmers’ or consumers’ perceptions that transgenes are “contaminants” and that landraces containing transgenes are “contaminated” could cause (...) these landraces to be rejected and trigger a direct loss of diversity. (shrink)

Emotions are complex reactions that allow individuals to cope with significant positive and negative events. Research on emotion was pioneered by Darwin’s (1871) work on emotional expressions in humans and animals. But Darwin was concerned mainly with facial and bodily expressions of significance for humans, citing mainly examples from mammals (e.g., apes, dogs, and cats). In birds, emotional expressions are less evident for a human observer, so a different approach is needed. Understanding avian emotions will provide key evolutionary information on (...) the evolution of related behaviors and brain circuitry. Birds and mammals are thought to have evolved from different groups of Mesozoic reptiles, theropod dinosaurs and therapsids, respectively, and therefore their common ancestor is likely to be a basal reptile living about 300 million years ago, during the Carboniferous or Permian. Yet, birds and mammals exhibit extensive convergence in terms of relative brain size, high levels of activity, sleep/wakefulness cycles, endothermy, and social behavior, among others. This article focuses on two basic emotions with negative valence: fear and frustration. Fear is related to the anticipation of dangerous or threatening stimuli (e.g., predators or aggressive conspecifics). Frustration is related to unexpected reward omissions or devaluations (e.g., loss of food or sexual resources). These results have implications for an understanding of the conditions that promote fear and frustration, and for the evolution of supporting brain circuitry. (shrink)

Este texto se propone interpretar la mencionada obra del comediante ateniense a la luz de la múltiple relación entre guerra – eros – paz. La hipótesis que queremos sostener indica que para Aristófanes el hombre se encuentra en un curioso estado paradójico respecto de la guerra, puesto que no puede vivir sin deseo, pero es el deseo el que también conduce a la guerra.

La periode universitaire du Moyen Age se caracterise par un veritable renouveau des formes de production de la pensee: nouvelles sources, nouvelle organisation du savoir, nouvelles theories de l'exegese mais egalement nouvelles pratiques interpretatives. L'ambition de ce livre est double: mettre au jour de maniere unitaire la pratique hermeneutique de l'ensemble de l'oeuvre de Thomas d'Aquin, et proposer par ce biais une methodologie pour optimiser l'etude de cette pratique chez d'autres auteurs de la meme epoque. A cet effet, l'ouvrage propose (...) une analyse systematique de la locution intentio auctoris a partir d'un corpus de pres de sept cent unites textuelles. La portee interpretative de ce syntagme est ici a la fois definie et mise a l'epreuve en vue d'en faire un veritable outil pour les etudes hermeneutiques. L'esquisse lexicale de cette locution, le decodage des criteres de lecture mis en place par Thomas d'Aquin et la determination du caractere juste d'un texte seront les etapes cle de ce parcours. La periode universitaire du Moyen Age se caracterise par un veritable renouveau des formes de production de la pensee: nouvelles sources, nouvelle organisation du savoir, nouvelles theories de l'exegese mais egalement nouvelles pratiques interpretatives. L'ambition de ce livre est double: mettre au jour de maniere unitaire la pratique hermeneutique de l'ensemble de l'oeuvre de Thomas d'Aquin, et proposer par ce biais une methodologie pour optimiser l'etude de cette pratique chez d'autres auteurs de la meme epoque. A cet effet, l'ouvrage propose une analyse systematique de la locution intentio auctoris... partir d'un corpus de pres de sept cent unites textuelles. La portee interpretative de ce syntagme est ici... la fois definie et mise... l'epreuve en vue d'en faire un veritable outil pour les etudes hermeneutiques. L'esquisse lexicale de cette locution, le decodage des criteres de lecture mis en place par Thomas d'Aquin et la determination du caractere juste d'un texte seront les etapes cle de ce parcours. (shrink)

In this article we explore multiple change operators, i.e., operators in which the epistemic input is a set of sentences instead of a single sentence. We propose two types of change: prioritized change, in which the input set is fully accepted, and symmetric change, where both the epistemic state and the epistemic input are equally treated. In both kinds of operators we propose a set of postulates and we present different constructions: kernel changes and partial meet changes.

Social and cultural contexts influence power dynamics and shape gender perceptions, roles, and decisions regarding the management of agrobiodiversity for dealing with and adapting to climate change. Based on a feminist political ecology framework and a mixed method approach, this research performs an empirical analysis of two case studies in the northern of India, one in the Himalayan Mountains and another in the Indian-Gangetic plains. It explores context-specific influence of gender roles and responsibilities on on-farm agrobiodiversity management gendered expertise and (...) knowledge related to agrobiodiversity and gendered preferences for practices and institutional arrangements for agrobiodiversity conservation linked to adaptation to climate change. In the Himalayan mountains women actively participate in crop and seed management decisions and tasks, and maintain informal institutions for seed and services exchanges in the case of crisis, which simultaneously favours high levels of agrobiodiversity and enhances women’s social status. By contrast, in the Indio-Gangetic plains, where women from better-off households are socially secluded and women from poorer households work mainly as labourer to respond to high out-migration of men, they exercise less public control over agrobiodiversity, with their role being mainly invisible at the homestead and related to post-production tasks. We finally discuss as improved understanding of the links between gendered spaces, crops, tasks, social status, and agrobiodiversity management can facilitate the design of gender-sensitive policy interventions for conservation and adaptation to climate change. (shrink)

Rapid individual cognitive phenotyping holds the potential to revolutionize domains as wide‐ranging as personalized learning, employment practices, and precision psychiatry. Going beyond limitations imposed by traditional lab‐based experiments, new efforts have been underway toward greater ecological validity and participant diversity to capture the full range of individual differences in cognitive abilities and behaviors across the general population. Building on this, we developed Skill Lab, a novel game‐based tool that simultaneously assesses a broad suite of cognitive abilities while providing an engaging (...) narrative. Skill Lab consists of six mini‐games as well as 14 established cognitive ability tasks. Using a popular citizen science platform (N = 10,725), we conducted a comprehensive validation in the wild of a game‐based cognitive assessment suite. Based on the game and validation task data, we constructed reliable models to simultaneously predict eight cognitive abilities based on the users’ in‐game behavior. Follow‐up validation tests revealed that the models can discriminate nuances contained within each separate cognitive ability as well as capture a shared main factor of generalized cognitive ability. Our game‐based measures are five times faster to complete than the equivalent task‐based measures and replicate previous findings on the decline of certain cognitive abilities with age in our large cross‐sectional population sample (N = 6369). Taken together, our results demonstrate the feasibility of rapid in‐the‐wild systematic assessment of cognitive abilities as a promising first step toward population‐scale benchmarking and individualized mental health diagnostics. (shrink)

This paper defends the deflationary character of two recent views regarding scientific representation, namely RIG Hughes’ DDI model and the inferential conception. It is first argued that these views’ deflationism is akin to the homonymous position in discussions regarding the nature of truth. There, we are invited to consider the platitudes that the predicate “true” obeys at the level of practice, disregarding any deeper, or more substantive, account of its nature. More generally, for any concept X, a deflationary approach is (...) then defined in opposition to a substantive approach, where a substantive approach to X is an analysis of X in terms of some property P, or relation R, accounting for and explaining the standard use of X. It then becomes possible to characterize a deflationary view of scientific representation in three distinct senses, namely: a “no-theory” view, a “minimalist” view, and a “use-based” view – in line with three standard deflationary responses in the philosophical literature on truth. It is then argued that both the DDI model and the inferential conception may be suitably understood in any of these three different senses. The application of these deflationary ‘hermeneutics’ moreover yields significant improvements on the DDI model, which bring it closer to the inferential conception. It is finally argued that what these approaches have in common – the key to any deflationary account of scientific representation – is the denial that scientific representation may be ultimately reduced to any substantive explanatory property of sources, or targets, or their relations. (shrink)

resumo O que segue é apenas o conjunto de algumas hipóteses de trabalho a respeito da presença de argumentos céticos nas Enéadas, particularmente no tratado V 3 [49]. O ceticismo apre s e nta-se no int e r ior de um varie g a do de arg u mentos dos quais Plotino se vale contra teses que ele pre t e nde critic a r. Tais teses dizem respeito: a) ao conhecimento sensível, toma do como fonte do conhe c i (...) mento verdade i ro, cujo questio na mento leva Plotino a compreender que a verdade situa-se em outra instância que não a esfera do sensível; b) à ide ntida de ent re o Intelecto e seu cont e ú do, no plano int e l igível; c) ao questio name nto da possibilida de de que o Intelecto divino, em seu sent ido aristotélico, seja o princípio primeiro da re a l ida de; d) à problemática da inefabilida de do Primeiro Princípio. Nossa estra t é g ia será a de: a) abordarmos algumas hipóteses acerca da estrutura do int e l igível e da possibilida de do conhe c i me nto de si, ide nt i f ic a ndo quais são os usos plotinianos de tal estrutura e como ela pode ser mo b i l i z a da na crítica ao Intelecto, se tomado como princípio. Desse problema decorre b) a identificação da presença do ceticismo na questão da negatividade fundamental do Primeiro Princípio inefável, que denota a impossibilida de absoluta de int ro duzir qualquer relação de alterida de e ex t e r io r ida de provindas de nossas afecções, em nosso discurso sobre o Uno. Tais referências ao ceticismo levam-nos a cons ide rar seu papel, como modus operandi, no int e r ior da metodo l o g ia filosófica plotiniana. Nossa preocupação, portanto, é essencialmente metodológica. palavras-chave Inefabilidade; dúvida cética; Intelecto; verdade; conhecimento de si. (shrink)

No presente estudo, discuto e sintetizo o conceito de célula vegetal de M. J. Schleiden e o conceito de animal elementar que elaboro a partir da ideia de “animal abstrato” sugerida por R. E. Grant. A elaboração e a interpretação que conduz a essa síntese é feita ampliando a ideia do desenvolvimento como um princípio regulador, proposta por E. Cassirer. Concebo tal ideia como expressão de uma racionalidade morfológica genética. O resultado geral obtido é que a célula vegetal e o (...) animal elementar são duas variações de uma mesma forma que exibe uma íntima relação estrutural-funcional, manifesta empiricamente em duas modalidades essenciais de vida, uma simples e singular e outra complexa e plural. A interação de ambas torna inteligível fenômenos básicos da vida vegetal e animal a partir de uma matriz genética comum. (shrink)

Depersonalization is characterised by a profound disruption of self-awareness mainly characterised by feelings of disembodiment and subjective emotional numbing.It has been proposed that depersonalization is caused by a fronto-limbic suppressive mechanism – presumably mediated via attention – which manifests subjectively as emotional numbing, and disables the process by which perception and cognition normally become emotionally coloured, giving rise to a subjective feeling of ‘unreality’.Our functional neuroimaging and psychophysiological studies support the above model and indicate that, compared with normal and clinical (...) controls, DPD patients show increased prefrontal activation as well as reduced activation in insula/limbic-related areas to aversive, arousing emotional stimuli.Although a putative inhibitory mechanism on emotional processing might account for the emotional numbing and characteristic perceptual detachment, it is likely, as suggested by some studies, that parietal mechanisms underpin feelings of disembodiment and lack of agency feelings. (shrink)

1Department of Philosophy, University of Bristol, 9 Woodland Road, Bristol BS8 1TB, UKScience Without Laws Ronald Giere Chicago, IL University of Chicago Press 1999 x + 285 Hardback£17.50.

These are the introduction chapters to the forthcoming collection of essays published by Springer (Synthese Library) and entitled Probabilities, Causes and Propensities in Physics.

It is still a matter of controversy whether the Principle of the Common Cause (PCC) can be used as a basis for sound causal inference. It is thus to be expected that its application to quantum mechanics should be a correspondingly controversial issue. Indeed the early 90’s saw a flurry of papers addressing just this issue in connection with the EPR correlations. Yet, that debate does not seem to have caught up with the most recent literature on causal inference generally, (...) which has moved on to consider the virtues of a generalised PCC-inspired condition, the so-called Causal Markov Condition (CMC). In this paper we argue that the CMC is an appropriate benchmark for debating possible causal explanations of the EPR correlations. But we go on to take issue with some pronouncements on EPR by defenders of the CMC. (shrink)

No presente texto propomos uma perspectiva multiespecífica para a análise da biopolítica. Partindo da situação da emergência da pandemia do COVID-19, tomada dentro do contexto das mutações ecológicas do Antropoceno, argumentamos que, para além da atenção voltada às operações das diversas experiências e dispositivos biopolíticos sobre o corpo humano – corpo individual ou corpo social – deve-se trilhar por uma via expandida que leve também em consideração, conjuntamente (e não por exclusão), os efeitos dessas operações sobre formas de vida outras-que-humanas, (...) tomando termos como meio ambiente e natureza não apenas pelo prisma de serem recursos geridos finalizando a condução da conduta humana, mas como meios vivos, igualmente. (shrink)

This volume defends a novel approach to the philosophy of physics: it is the first book devoted to a comparative study of probability, causality, and propensity, and their various interrelations, within the context of contemporary physics -- particularly quantum and statistical physics. The philosophical debates and distinctions are firmly grounded upon examples from actual physics, thus exemplifying a robustly empiricist approach. The essays, by both prominent scholars in the field and promising young researchers, constitute a pioneer effort in bringing out (...) the connections between probabilistic, causal and dispositional aspects of the quantum domain. The book will appeal to specialists in philosophy and foundations of physics, philosophy of science in general, metaphysics, ontology of physics theories, and philosophy of probability. (shrink)