Continued failure to limit emissions of carbon dioxide and other greenhouse gases that are causing global climate change has brought increased attention to climate engineering technologies, which actively modify the global environment to counteract heating and climate disruptions caused by elevated greenhouse gases. Some proposed forms of CE, particularly spraying reflective particles in the upper atmosphere to reduce incoming sunlight, can cool the average temperature of the Earth rapidly and cheaply, thereby substantially reducing climate-related risks. Yet CE interventions provide only (...) imperfect corrections for the climatic and other environmental effects of elevated greenhouse gases, and carry their own environmental risks. Moreover, they may also increase other risks, by weakening political support for essential emissions reductions or providing new triggers for international conflict. These technologies thus require international governance, but also pose novel and severe challenges to current international laws and institutions. Effective governance of CE will require a capacity to make decisions regarding the conditions, if any, under which specific interventions are authorized, plus realtime operational oversight of any interventions that are conducted. Decision processes must be effectively linked with scientific research and assessment, and with institutions to manage and respond to threats of CE-related conflict. We advance preliminary suggestions to address two priority areas for early investigation: how international cooperation on early CE research can help develop shared norms that can grow robust enough to support future decision needs; and how early research and development on CE can be made to complement and encourage, rather than undermine, parallel efforts to reduce climate risks by cutting emissions. (shrink)

Approximately three decades ago the question was first answered whether parasitoids are able to assess the number or origin of eggs in a host for a solitary parasitoid, Leptopilina heterotoma, by fitting theoretically derived distributions to empirical ones. We extend the set of different theoretically postulated distributions of eggs among hosts by combining searching modes and abilities in assessing host quality. In the models, parasitoids search either randomly (Poisson) (1) or by vibrotaxis (Negative Binomial) (2). Parasitoids are: (a) assumed to (...) treat all hosts equally, (b) able to distinguish them in unparasitised and parasitised hosts only, (c) able to distinguish them by the number of eggs they contained, or (d) able to recognise their own eggs. Mathematically tractable combinations of searching mode (1 and 2) and abilities (a,b,c,d) result in seven different models (M1a, M1b, M1c, M1d, M2a, M2b and M2c). These models have been simulated for a varying number of searching parasitoids and various mean numbers of eggs per host. Each resulting distribution is fitted to all theoretical models. The model with the minimum Akaike's information criterion (AIC) is chosen as the best fitting for each simulated distribution. We thus investigate the power of the AIC and for each distribution with a specified mean number of eggs per host we derive a frequency distribution for classification.Firstly, we discuss the simulations of models including random search (M1a, M1b, M1c and M1d). For M1a, M1c and M1d the simulated distributions are correctly classified in at least 70% of all cases. However, in a few cases model M1b is only properly classified for intermediate mean values of eggs per host. The models including vibrotaxis as searching behaviour (M2a, M2b and M2c) cannot be distinguished from those with random search if the mean number of eggs per host is low. Among the models incorporating vibrotaxis the three abilities are detected analogously as in models with random search. (shrink)

ResumoAs práticas culturais fundem, a todo o momento, diferentes relações entre sistemas culturais (EVEN-ZOHAR, 1990) que antes eram separados. Tais manifestações híbridas reconfiguram e desterritorializam processos simbólicos. Nesse sentido, o presente artigo realiza uma análise comparatista das relações intertextuais presentes na configuração artística do álbum Esú, do rapper brasileiro Baco Exu do Blues, em especial na faixa “Capitães de Areia” em relação ao romance quase homônimo de Jorge Amado, às referências à mitologia dos Erês, e à série fotográfica Laróyè, de (...) Mario Cravo Neto. Para analisar as implicações dessas inter-relações na configuração cultural e identitária da obra, buscamos aporte teórico-crítico no campo dos Estudos Culturais pela perspectiva de conceitos que tentam dar conta desses processos, acerca do Hibridismo, em Néstor García Canclini, e das reflexões sobre sincretismo religioso em Sérgio Ferretti.Palavras-chave: Capitães da Areia; Hibridismo; sincretismo religioso; práticas culturais. AbstractCultural practices merge, at all times, different relationships with cultural systems (EVENN-ZOHAR, 1991) that were previously separated. Such hybrid manifestations reconfigure and deterritorialize symbolic processes. In this sense, this article performs a comparative analysis of the intertextual relations present in the artistic configuration of the album Esú, by rapper Baco Exu do Blues, especially the track “Capitães de Areia” and references to the mythology of the Erês, to the novel by Jorge Amado and Laróyè photographic series by Mario Cravo Neto. To analyze the implications of these interrelations in the cultural and identity configuration of the work, we seek theoretical-critical support in the field of Cultural Studies from the perspective of concepts that try to account for these processes, about Hybridism in Néstor García Canclini and reflections on religious syncretism in Sérgio Ferreti.Keywords: Capitães da Areia; Hybridity; religious syncretism; cultural practices. (shrink)

We claim that much of the confusion associated with the "tautology problem" about survival of the fittest is due to the mistake of attributing fitness to individuals instead of to types. We argue further that the problem itself cannot be solved merely by taking fitness as the aggregate cause of reproductive success. We suggest that a satisfying explanation must center not on logical analysis of the concept of general adaptedness but on the empirical analysis of single adapted traits and their (...) causal relationship to changes in allele frequencies. (shrink)

This article aims at offering a broad perspective on the evolution and changes of the national Sakha kumys , a beverage made up of raw mare's milk that is quite popular in the Middle Asia area, above all among Turkic-speaking nomadic cattle breeders such as Kazaks, Bashkirs, Tatars, Tuvans, Altaians, and Sakha. I argue that, in spite of its use as an everyday commodity of the Sakha's diet until the beginning of the twentieth century, today it appears to be the (...) marker of the “degree” of cultural authenticity of the Sakha people. (shrink)

Ce texte propose une justification de la critique que Spinoza adresse à Descartes, par l’intermédiaire de Louis Meyer, dans la Préface des Principes de la Philosophie de Descartes ; plus particulièrement, il s’agit de reconstruire ses raisons pour affirmer qu’il n’a pas été prouvé, dans la Seconde Méditation, que la chose qui est désignée par le terme ‘je’ puisse être une substance. L’argument qui doit soutenir cette affirma- tion peut être schématisé de la façon suivante : Descartes ne peut introduire (...) un indice temporel dans la certitude de la proposition Je suis, j’existe que s’il accepte que la compréhension de cette proposition enveloppe la possibilité de l’existence d’autres choses pensantes finies, ce qui contredit l’unes des conditions de la conception d’une chose comme substance, telles que lui-même les a définies dans l’article 60 de la première partie des Principes de la Philosophie. (shrink)

Numerical categories such as parity, i.e., being odd or even, have frequently been shown to influence how particular numbers are processed. Mathematically, number parity is defined categorically. So far, cognitive, and psychological accounts have followed the mathematical definition and defined parity as a categorical psychological representation as well. In this manuscript, we wish to test the alternative account that cognitively, parity is represented in a more gradual manner such that some numbers are represented as “more odd” or “more even” than (...) other odd or even numbers, respectively. Specifically, parity processing might be influenced by more specific properties such as whether a number is a prime, a square number, a power of 2, part of a multiplication table, divisible by 4 or by 5, and many others. We suggest that these properties can influence the psychologically represented parity of a number, making it more or less prototypical for odd- or evenness. In the present study, we tested the influence of these numerical properties in a bimanual parity judgment task with auditorily presented two-digit numbers. Additionally, we further investigated the interaction of these numerical properties with linguistic factors in three language groups (English, German, and Polish). Results show significant effects on reaction times of the congruity of parity status between decade and unit digits, even if numerical magnitude and word frequency are controlled. We also observed other effects of the above specific numerical properties, such as multiplication attributes, which facilitated or interfered with the speed of parity judgment. Based on these effects of specific numerical properties we proposed and elaborated a parity continuum account. However, our cross-lingual study also suggests that parity representation and/or access seem to depend on the linguistic properties of the respective language or education and culture. Overall, the results suggest that the “perceived” parity is not the same as objective parity, and some numbers are more prototypical exemplars of their categories. (shrink)

Al centro dell'attenzione degli studiosi nell'ultimo ventennio per l'importanza della testimonianza storica, per il carattere peculiare delle strutture compositive, per varie sfaccettature dell'impostazione ideologica, l'opera di Michele Attaliata non disponeva di un'analisi complessiva né tantomeno di un'edizione critica condotta sulla base degli attuali criteri ecdotici e di una traduzione in una lingua moderna. Lacuna avvertita dai bizantinisti con maggiore evidenza, dal momento che per gli altri storici di primo piano dell'XI secolo, da Michele Psello a Giovanni Scilitza, ci si avvale (...) di strumenti critici agguerriti. Lacuna colmata dal poderoso lavoro di I. Pérez Martín che si presenta come un'edizione dell' Ἱστοϱία di Attaliata, corredata da traduzione in spagnolo, commento, bibliografia, indici, tavole e preceduta da un'ampia introduzione. (shrink)

Theory of language is an important factor in the plans of political and educational reform drawn by Italian philosophers of the eighteenth century. Analysis of language is a technique they often resort to when discussing the foundations of political philosophy and the ways and means of social communication. Interesting suggestions concerning philosophy of language can be found in the works of writers on political economy and philosophy of jurisprudence (Antonio Genovesi, Gaetano Filangieri, Cesare Beccaria, Melchiorre Gioia, Gian Domenico Romagnosi, among (...) others), where subjects such as abuse of words and linguistic arbitrarism are connected to theoretical and practical problems of the transition from feudal to bourgeois régime. (shrink)

This paper distinguishes four recognisably different geographical processes in principle causing species to die out. One of these processes, the one we dub “range eclipse”, holds that one range expands at the expense of another one, thereby usurping it. Channell and Lomolino (2000a, Journal of Biogeography 27: 169–179; 2000b, Nature 403: 84–87; see also Lomolino and Channell, 1995, Journal of Mammalogy 76: 335–347) measured the course of this process in terms of the proportion of the total range remaining in its (...) original centre, thereby essentially assuming a homogeneous distribution of animals over the range. However, part of their measure seems mistaken. By giving a general, analytical formulation of eclipsing ranges, we estimate the exact course of this process. Also, our formulation does not partition a range into two spatially equal parts, its core and its edge, but it assumes continuity. For applying this model to data on the time evolution of species, individual time series should be available for each of them. For practical purposes we give an alternative way of plotting and interpreting such time series. Our approach, being more sensitive than Channell and Lomolino’s, gives a less optimistic indication of range eclipses than theirs once these have started. (shrink)

This article explores the relationship between truth commissions and gendered citizenship through a case study of Timor-Leste. It examines how, 10 years after the Commission for Reception, Truth and Reconciliation has completed its work, women’s citizenship remains constrained by, and negotiated within, deeply gendered narratives of nation-building that are informed by historical experiences of the resistance struggle. The power of these narratives—which foreground heroism rather than victimisation—underscores the need to situate truth commissions as part of an ongoing politics of memory. (...) Despite the power of political elites to shape this politics, the continued marginalisation of sections of society within official narratives is also providing an impetus for alternative truth-telling efforts that seek to broaden public perspectives on the past. By promoting new narratives of women’s experiences of the conflict, these projects might be understood as attempts to negotiate and transform gendered conceptions of citizenship in the present and for the future. (shrink)

Human beings as imperfect rational beings face continuous challenges, one of them has to do with the lack of recognizing and respecting our inner dignity in present times. In this collective paper, we address the overall theme—Philosophy of Education in a New Key from various perspectives related to dignity. We address in particular some of the constraints and possibilities with regard to this issue in various settings such as education and society at large. Klas Roth discusses, for example, that it (...) is not uncommon that the value of human beings has to do with their price in, inter alia, their social, cultural, political and economic settings throughout the world. He argues that such a focus does not necessarily draw attention to the inner dignity of human beings, but that human beings ought to do so in education and society at large. Lia Mollvik discusses views of inner and outer dignity, and argues that there needs to be a balance in between them, and that the balance ought to be acknowledged in education. Rama Alshoufani discusses the classification of human beings in terms of various diagnoses related to the asserted dysfunction of the brain, and she argues that such classification does paradoxically not necessarily respect people with such diagnoses as ends in themselves. On the contrary, she argues that their inner dignity is not respected, but that it should be. Other such failures are due to the lack of inner dignity when it comes to Children’s rights as discussed by Rebecca Adami, and to the lack of recognition of human beings’ vulnerability as discussed by Katy Dineen. Fariba Majlesi criticizes a too strong emphasis on substantive notions of humanist education, which seem to hinder new ways of thinking; she argues that it is necessary to acknowledge the latter in and through education in order to preserve the dignity of human beings. Dignity, it is argued throughout the paper, has an inner moral worth, and is beyond price. (shrink)

This volume addresses the relationship between irony and popular culture and the role of the consumer in determining and disseminating meaning. Arguing that in a cultural climate largely characterised by fractious communications and perilous linguistic exchanges, the very role of irony in popular culture needs to come under greater scrutiny, it focuses on the many uses, abuses, and misunderstandings of irony in contemporary popular culture, and explores the troubling political populism at the heart of many supposedly satirical and (apparently) non-satirical (...) texts. In an environment in which irony is frequently claimed as a defence for material and behaviour judged controversial, how do we, as a society entrenched in forms of popular culture and media, interpret work that is intended as satire but which reads as unironic? How do we accurately decode works of popular film, literature, television, music, and other cultural forms which sell themselves as bitingly ironic commentaries on current society, but which are also problematic celebrations of the very issues they purport to critique? And what happens when texts intended and received in one manner are themselves ironically recontextualised in another? Bringing together studies across a range of cultural texts including popular music, film and television, Isn't it Ironic? will appeal to scholars of the social sciences and humanities with interests in cultural studies, media studies, popular culture, literary studies and sociology. (shrink)

In contrast to its aims, Koriat & Goldsmith's article vividly demonstrates(1) the complementarity of ecological and traditional approaches and (2) the difficulty of characterising the growing diversity of memory research with a single set of distinctions. Moreover, the contrast between correspondence and storehouse metaphors is important enough to stand alone without reference to an everyday/laboratory controversy, which is neither acute nor necessary.

The Cartesian notion of idea is the focal point of this paper, which aims to determine whether this concept entails (a) the proposition that ideas are the immediate objects of perception, or (b) the proposition that ideas are the immediate perception of objects, or (c) both. Merely examining the Cartesian texts raises this question, as there are passages that seem to support all these positions. This discussion is not original, as it delves into one of the key questions that Cartesian (...) philosophy posed to the philosophical discourse on the problem of knowledge in the seventeenth century and beyond, an inquiry that continues to reverberate in contemporary commentaries and studies on these theories. The hypothesis that I propose to defend is as follows: once the foundational principle of clarity and distinctness is established, it is necessary to affirm that the subject perceives the objects represented in the ideas that serve as the basis for true judgments, without excluding the proposition that the subject also perceives the ideas themselves. In other words, it is essential to consider that the Cartesian concept of idea encompasses both the object immediately perceived and, in certain cases, the immediate perception of the object. (shrink)

Este artigo apresenta a maneira pela qual atualmente compreendo um dos pontos mais controverso: da doutrina cartesiana, a saber, sua concepção de liberdade. Meu interesse nas concepções cartesianas de vontade e de liberdade é exclusivamente epistêmico, e não prático; ou melhor, trata-se de pensar esses conceitos, bem como sua relação a partir do ponto de vista estrito do problema do conhecimento, embora - aparentemente - o próprio Descartes não acreditasse que tal separação fosse possível. Através da análise das relações entre (...) entendimento, vontade e liberdade, procuro mostrar que a razão que leva Descartes a enfatizar a distinção entre antes e durante o momento da decisão da vontade na carta de 9 de fevereiro de 1645 ao Padre Mesland reside precisamente na consideração de que a concepção da liberdade humana deve associar às condições de aplicação do conceito formal de liberdade as condições específicas de seu exercício no caso do espírito humano, enquanto substância finita criada inserida na temporalidade. A análise das condições do exercício da liberdade humana, por sua vez, pode explicar a introdução de um tipo peculiar de necessidade epistêmica associada à percepção de conteúdos fictícios e que gera o problema do qual trata a Quinta Meditação, e cujo exame conduziu-me a investigar concepção cartesiana de liberdade. (shrink)

Este artigo prolonga a análise do argumento apresentado por Descartes em favor da primeira certeza no início da Segunda Meditação, iniciada em um artigo anterior (Ainda o Cogito). É examinada a passagem subsequente ao referido argumento com vistas a estabelecer que sua compreensão aponta para um debate velado entre Descartes e seus leitores versa- dos na doutrina escolástica, mais particularmente nas concepções da definição como estruturada pela composição do gênero e da diferença e de específica e de conceito universal abstrato. (...) Procuro mostrar que as razões que Des- cartes dispõe para recusar essas concepções podem ser extraídas de certa interpretação do argumento em favor da certeza da proposição eu existo e que essa recusa é imprescindível para a compreensão adequada do penso, logo existo e, portanto, de seu argumento em favor do dualismo. (shrink)

This book tells the story of how 18th-century European philosophy used Locke's theory of signs to build a natural history of speech and to investigate the semiotic tools with which nature and civil society can be controlled. The story ends at the point where this approach to language sciences was called into question. Its epilogue is the description of the birth of an alternative between empiricism and idealism in late 18th- and early 19th-century theories of language. This alternative has given (...) rise to such irreducible dichotomies as empirical linguistics vs. speculative linguistics, philosophies of linguistics vs. philosophy of language. Since then philosophers have largely given up reflecting on linguistic practice and have left the burden of unifying and interpreting empirical research data to professional linguists, limiting themselves to the study of foundations and to purely self-contemplative undertakings. The theoretical and institutional relevance to the present of the problems arising from this situation is in itself a sufficient reason for casting our minds back over a period in which, as in no other, linguistic research was an integral part of the encyclopaedia of knowledge, and in which philosophers reflected, and encouraged reflection, upon the semiotic instruments of science and politics. (shrink)

Apresentam-se resultados de um estudo que examinou o juízo moral das crianças sobre a ingratidão. Participaram 77 crianças (49% do sexo feminino), distribuídas em três grupos (5-6, 8-9 e 11-12 anos). Utilizaram-se duas histórias protagonizadas por um(a) benfeitor(a) e um(a) ingrato(a). Após cada his..

Aristotle, Master Eckhart, Descartes, Spinoza, Leibniz, Hobbes, Locke, Berkeley, Hume, and Kant are among the authors exegetically challenged in this collection of fifteen investigations on classical philosophical themes (rational justification, theory of judgment, analysis of duty and moral principles, doctrine of the subject, freedom, substance and property, necessity and contingency, existence and causality). The choice of the logical geography of these themes relies on the conviction that philosophical understanding and historical inquiry are intrinsically connected.

According to the majority of interpreters of Spinozist philosophy, his doctrine is independent of the modern notion of subjectivity. This study, however, shows that the theory of human knowledge presented in the Ethics can not be rightly understood without adding a certain concept of self-consciousness, and so must contain a theory of subjectivity. Moreover, this theory is reconstructed from Spinozist concepts: self-awareness is, for man, the manifestation of his conatus as a finite thinking unity existing in duration . This reconstruction (...) reveals that the doctrine of Spinoza provides a rather original modern notion of subjectivity, which is a modern alternative to the Cartesian one. (shrink)

This commentary suggests how the target article raises new implications for brain injury therapies, which may have been anticipated by the neurologist Kurt Goldstein, though he worked in an earlier era of fervent localization of brain function.