A evolução cósmica e biológica é hoje um fato universalmente admitido pela comunidade científica. Muitos julgam que essa posição científica é incompatível com a aceitação de um Deus criador do mundo, seja que neguem a criação em nome da evolução, seja que rejeitem a evolução em nome da fé. O artigo pretende apontar a inconsistência do dilema “evolução ou criação”, mostrando, mediante uma reflexão filosófica, que ele deriva de uma falsa compreensão do método e do alcance tanto das ciências positivas (...) como da teologia. Defende, além disso, que compete aos cientistas verificar se o neodarwinismo da teoria sintética é ou não uma explicação científica satisfatória dos fenômenos. Afirma, porém, que também essa teoria seria compatível com uma ideia adequada de criação, mesmo que não recorra, para explicar a evolução, nem à intervenção de uma causa eficiente trans-empírica, nem a uma inteligência superior que oriente o processo evolutivo para determinados fins. Com efeito, a ação criadora de Deus que confere o ser e agir a toda a realidade natural e a orienta, de algum modo, para seus fins, tem um caráter transcendente, e, por princípio, não pode ser detectada pela investigação científica, mas, tão somente, pela reflexão filosófica. (shrink)

O artigo trata da primeira da fase, bem mais breve, do pensamento filosófico de Lima Vaz, reconhecido como um dos principais filósofos de sua geração no Brasil. Depois de fornecer algumas indicações sobre sua formação intelectual, detém-se na sua reflexão sobre as condições de reconciliação entre a mensagem cristã e o pensamento moderno através de seus artigos sobre “consciência histórica”, visando resgatar o verdadeiro sentido da modernidade. Analisa também a aplicação feita por ele dessas ideias à solução dos graves problemas (...) da sociedade brasileira então em debate, bem como a repercussão pública de sua proposta num momento decisivo da história nacional. Discute em seguida se ele com isso se mostra então favorável a um pensamento cristão alternativo à metafísica tradicional, concluindo por uma provável negativa. (shrink)

As relações Estado-Religião têm sido regidas na modernidade pelo princípio da laicidade do Estado. Esta laicidade assumiu, muitas vezes, o caráter de negação dos valores transcendentes, sob a capa de neutralidade do Estado. Tal posição se explica pela origem do Estado laico como reação à influência dominante das Igrejas cristãs sobre toda a vida social, no período anterior à Revolução Francesa. Ora, esta contraposição entre as esferas religiosa e política perdeu qualquer sentido no mundo atual, pelo menos, no Ocidente. Com (...) efeito, as mudanças culturais advindas com a secularização da sociedade reclamam - está é a proposta do artigo - um novo modelo de laicidade, segundo o qual o Estado, longe de pretender impor aos cidadãos uma determinada visão do mundo, pretensamente científica, mas, na verdade, ideológica, promova a participação de todas as forças vivas da nação, em particular, das comunidades religiosas, no debate público sobre as questões de interesse comum, sobretudo no seu aspecto ético. Palavras-chave : Laicidade; Estado; Religião; Tradições culturais; Secularização; Ética.The relations between Religion and State have been ruled in modern times by a secularist view of politics. Official secularism has often assumed the denial of transcendent values, under cover of State neutrality. This position can be explained in view of the origins of the secular State as a reaction against the hegemonic social influence of Christian Churches prior to the French Revolution. The opposition between the religious and political spheres, however, has lost all meaning in today's world, at least in the West. In fact, as this article intends to show, the cultural changes arising precisely from the secularization of society require a new model of secular State, wherein the State should not seek to impose on its citizens a certain worldview which, although purportedly scientific, would in fact be ideological. On the contrary, it should promote the participation of all of civil society, and of the nation's religious communities in particular, in the public debate about issues of common interest, especially regarding their ethical aspects. Key Words : Secularity; State; Religion; Cultural traditions; Secularization; Ethics. (shrink)

This paper discusses how to define logics as deductive limits of sequences of other logics. The case of da Costa's hierarchy of increasingly weaker paraconsistent calculi, known as $ \mathcal {C}$n, 1 $ \leq$ n $ \leq$ $ \omega$, is carefully studied. The calculus $ \mathcal {C}$$\scriptstyle \omega$, in particular, constitutes no more than a lower deductive bound to this hierarchy and differs considerably from its companions. A long standing problem in the literature (open for more than 35 years) is (...) to define the deductive limit to this hierarchy, that is, its greatest lower deductive bound. The calculus $ \mathcal {C}$min, stronger than $ \mathcal {C}$$\scriptstyle \omega$, is first presented as a step toward this limit. As an alternative to the bivaluation semantics of $ \mathcal {C}$min presented thereupon, possible-translations semantics are then introduced and suggested as the standard technique both to give this calculus a more reasonable semantics and to derive some interesting properties about it. Possible-translations semantics are then used to provide both a semantics and a decision procedure for $ \mathcal {C}$Lim, the real deductive limit of da Costa's hierarchy. Possible-translations semantics also make it possible to characterize a precise sense of duality: as an example, $ \mathcal {D}$min is proposed as the dual to $ \mathcal {C}$min. (shrink)

Binge-purge eating disorders, such as bulimia nervosa and binge eating disorder, may share some neurobiological features. Electroencephalography is a non-invasive measurement modality that may aid in research and diagnosis of BP-ED. We conducted a systematic review of the literature on EEG findings in BP-ED, seeking to summarize and analyze the current evidence, as well as identify shortcomings and gaps to inform new perspectives for future studies. Following PRISMA Statement recommendations, the PubMed, Embase, and Web of Science databases were searched using (...) terms related to “electroencephalography” and “binge-purge” eating disorders. Of 555 articles retrieved, 15 met predefined inclusion criteria and were included for full-text analysis. Eleven studies investigated EEG by means of event-related potentials in BP-ED individuals: 7 using eating disorder-related stimuli and 4 using non-eating disorder-related stimuli. These studies found significant differences in the N200, P200, P300, and LPP components in BP-ED participants compared to controls, indicating that this population exhibits impairments in selective attention, attentional allocation/processing, and allocation of motivational or emotion-based attention. Five studies investigated EEG using frequency analysis; reporting significant differences in beta activity in fronto-temporal and occipito-temporo-parietal areas in BP-ED individuals compared to controls, revealing a dysfunctional brain network. However, the small number of studies, the heterogeneity of samples, study paradigms, stimulus types, and the lack of an adequate assessment of neuropsychological parameters are some limitations of the current literature. Although some EEG data are promising and consistent with neuroimaging and neuropsychological findings in individuals with BP-ED, future studies need to overcome current methodological shortcomings. (shrink)

This paper tries to characterize the factors determining human relations with its environment and to identify the drives of those behavioral patterns and “praxis”. One scrutinizes the physiological and psychological factors that influence those drives, and tries to determine ways of overriding instinctive drives in favor of rational, sustainable ones. It focuses its attention on the way the different ecosystemic, economic and socio-cultural systems work, and pin-points the critical issues in view of the development of sustainable behavioral patterns. Also the (...) values that must build the new behavioral paradigm, as well as the ways to ensure the evolutionary quantum-leap necessary to ensure this sustainable condition, and the fulfilment, at every level, the different needs of humans and human societies, are analyzed. In conclusion, it stresses the fact that any reliable and long lasting change towards a sustainable behavior must start at the individual and the close social groups levels, and of the development of new factors of self-fulfillment and gratification, able to support and foster that change. The proposed epistemological approach is particularly innovative, precisely because of this emphasis on the individual drives and the way they determine the global patterns of environmental use, as well as the way they can evolve into a more rational character. In short, the paper focuses itself in the way man can evolve from its natural animal instincts and drives toward more rational ones, humanizing its behavior and turning, therefore, into an able actor of the process of sustainability building. (shrink)

NIK1 is a receptor‐like kinase involved in plant antiviral immunity. Although NIK1 is structurally similar to the plant immune factor BAK1, which is a key regulator in plant immunity to bacterial pathogens, the NIK1‐mediated defenses do not resemble BAK1 signaling cascades. The underlying mechanism for NIK1 antiviral immunity has recently been uncovered. NIK1 activation mediates the translocation of RPL10 to the nucleus, where it interacts with LIMYB to fully down‐regulate translational machinery genes, resulting in translation inhibition of host and viral (...) mRNAs and enhanced tolerance to begomovirus. Therefore, the NIK1 antiviral immunity response culminates in global translation suppression, which represents a new paradigm for plant antiviral defenses. Interestingly, transcriptomic analyses in nik1 mutant suggest that NIK1 may suppress antibacterial immune responses, indicating a possible opposite effect of NIK1 in bacterial and viral infections. (shrink)

This paper introduces new logical systems which axiomatize a formal representation of inconsistency (here taken to be equivalent to contradictoriness) in classical logic. We start from an intuitive semantical account of inconsistent data, fixing some basic requirements, and provide two distinct sound and complete axiomatics for such semantics, LFI1 and LFI2, as well as their first-order extensions, LFI1* and LFI2*, depending on which additional requirements are considered. These formal systems are examples of what we dub Logics of Formal Inconsistency (LFI) (...) and form part of a much larger family of similar logics. We also show that there are translations from classical and paraconsistent first-order logics into LFI1* and LFI2*, and back. Hence, despite their status as subsystems of classical logic, LFI1* and LFI2* can codify any classical or paraconsistent reasoning. (shrink)

Fibring is recognized as one of the main mechanisms in combining logics, with great signicance in the theory and applications of mathematical logic. However, an open challenge to bring is posed by the collapsing problem: even when no symbols are shared, certain combinations of logics simply collapse to one of them, indicating that bring imposes unwanted interconnections between the given logics. Modulated bring allows a ner control of the combination, solving the collapsing problem both at the semantic and deductive levels. (...) Main properties like soundness and completeness are shown to be preserved, comparison with bring is discussed, and some important classes of examples are analyzed with respect to the collapsing problem. (shrink)

The use of transcranial Electrical Stimulation in the modulation of cognitive brain functions to improve neuropsychiatric conditions has extensively increased over the decades. tES techniques have also raised new challenges associated with study design, stimulation protocol, functional specificity, and dose-response relationship. In this paper, we addressed challenges through the emerging methodology to investigate the dose-response relationship of High Definition-transcranial Direct Current Stimulation, identifying the role of negative valence in tinnitus perception. In light of the neurofunctional testable framework and tES application, (...) hypotheses were formulated to measure clinical and surrogate endpoints. We posited that conscious pairing adequately pleasant stimuli with tinnitus perception results in correction of the loudness misperception and would be reinforced by concurrent active HD-tDCS on the left Dorsolateral Prefrontal Cortex. The dose-response relationship between HD-tDCS specificity and the loudness perception is also modeled. We conducted a double-blind, randomized crossover pilot study with six recruited tinnitus patients. Accrued data was utilized to design a well-controlled adaptive seamless Bayesian dose-response study. The sample size and optimum interims were anticipated for adaptive decision-making about efficacy, safety, and single session dose parameters. Furthermore, preliminary pilot study results were sufficient to show a significant difference within the longitudinally detected self-report tinnitus loudness between before and under positive emotion induction. This study demonstrated a research methodology used to improve emotion regulation in tinnitus patients. In the projected method, positive emotion induction is essential for promoting functional targeting under HD-tDCS anatomical specificity to indicate the efficacy and facilitate the dose-finding process. The continuous updating of prior knowledge about efficacy and dose during the exploratory stage adapts the anticipated dose-response model. Consequently, the effective dose range to make superiority neuromodulation in correcting loudness misperception of tinnitus will be redefined. Highly effective dose adapts the study to a standard randomized trial and transforms it into the confirmatory stage in which active HD-tDCS protocol is compared with a sham trial. Establishing the HD-tDCS intervention protocols relying on this novel method provides reliable evidence for regulatory agencies to approve or reject the efficacy and safety. Furthermore, this paper supports a technical report for designing multimodality data-driven complementary investigations in emotion regulation, including EEG-driven neuro markers, Stroop-driven attention biases, and neuroimaging-driven brain network dynamics. (shrink)

In 346 BC. the Athenians negotiated a peace treaty with King Philip II of Macedon, but afterwards one of the Athenian ambassadors, Demosthenes, accused another, Aiskhines, of accepting a bribe from Philip to contrive that the terms of the treaty should be favourable to him. The case came to trial three years later, and On the False Embassy is the speech which Demosthenes prepared for the prosecution. It is one of the most famous pieces of ancient oratory, and it is (...) also one of the principal sources of information about the politics of its period. This volume is on the same lines as Professor MacDowell's previous edition of Demosthenes' speech Against Meidias. It includes an introduction concentrating especially on the historical circumstances, a revised Greek text based on fresh study of the manuscripts, an English translation on pages facing the text, and the first detailed commentary on the speech for over a hundred years. (shrink)

Este artigo interpreta a quarta conferência de uma série de seis pronunciadas por Foucault em Berkeley (Universidade da Califórnia) de outubro a novembro de 1983. A problemática da parrhesia retomada pelo filósofo francês do diálogo Laques, de Platão, suscita uma discussão sobre os sentidos de democracia, sistema político em baixa na Atenas do final do século V a.C. Articulando os discursos cômico e filosófico, evidenciam-se, ao mesmo tempo, a força e as lacunas do texto de Foucault. Se, por um lado, (...) o interesse foucaultiano pela verdade força um retorno ao “falar franco”, por outro, falta, nesta conferência, um olhar de conjunto mais amplo que dê conta da parrhesia como sintoma de uma falta e da decadência do espírito democrático ateniense nos termos propostos no Laques. Deriva dessa falta, por exemplo, a ideia de que, do ponto de vista conceitual, o Laques seria “um fracasso”. PALAVRAS-CHAVE: Democracia; Discurso; Parrhesía; Verdade. (shrink)

How fast? How strong? How many? So what? Why do numbers matter in biology? Chromatin binding proteins are forever in motion, exchanging rapidly between bound and free pools. How do regulatory systems whose components are in constant flux ensure stability and flexibility? This review explores the application of quantitative and mathematical approaches to mechanisms of epigenetic regulation. We discuss methods for measuring kinetic parameters and protein quantities in living cells, and explore the insights that have been gained by quantifying and (...) modelling dynamics of chromatin binding proteins. (shrink)

The COVID-19 outbreak has ravaged all societal domains, including education. Home confinement, school closures, and distance learning impacted students, teachers, and parents’ lives worldwide. In this study, we aimed to examine the impact of COVID-19-related restrictions on Italian and Portuguese students’ academic motivation as well as investigate the possible buffering role of extracurricular activities. Following a retrospective pretest–posttest design, 567 parents reported on their children’s academic motivation and participation in extracurricular activities. We used a multi-group latent change score model to (...) compare Italian and Portuguese students’: pre-COVID mean motivation scores; rate of change in motivation; individual variation in the rate of change in motivation; and dependence of the rate of change on initial motivation scores. Estimates of latent change score models showed a decrease in students’ motivation both in Italy and in Portugal, although more pronounced in Italian students. Results also indicated that the decrease in students’ participation in extracurricular activities was associated with changes in academic motivation. Furthermore, students’ age was significantly associated with changes in motivation. No significant associations were found for students’ gender nor for parents’ education. This study provides an important contribution to the study of students’ academic motivation during home confinement, school closures, and distance learning as restrictive measures adopted to contain a worldwide health emergency. We contend that teachers need to adopt motivation-enhancing practices as means to prevent the decline in academic motivation during exceptional situations. (shrink)

Zones of social abandonment are emerging everywhere in Brazil’s big cities—places like Vita, where the unwanted, the mentally ill, the sick, and the homeless are left to die. This haunting, unforgettable story centers on a young woman named Catarina, increasingly paralyzed and said to be mad, living out her time at Vita. Anthropologist João Biehl leads a detective-like journey to know Catarina; to unravel the cryptic, poetic words that are part of the “dictionary” she is compiling; and to trace (...) the complex network of family, medicine, state, and economy in which her abandonment and pathology took form. An instant classic, _Vita_ has been widely acclaimed for its bold fieldwork, theoretical innovation, and literary force. Reflecting on how Catarina’s life story continues, this updated edition offers the reader a powerful new afterword and gripping new photographs following Biehl and Eskerod’s return to Vita. Anthropology at its finest, _Vita_ is essential reading for anyone who is grappling with how to understand the conditions of life, thought, and ethics in the contemporary world. (shrink)

Cause-related marketing has risen to become a popular strategy to increase business value through profit-motivated giving. Despite the growing number of articles published in the last decade, no comprehensive analysis of the most discussed constructs of cause-related marketing is available. This paper uses an advanced Text Mining methodology to conduct a comprehensive analysis of 246 articles published in 40 different journals between 1988 and 2013 on the subject of cause-related marketing. Text Mining also allows quantitative analyses to be performed on (...) the literature. For instance, it is shown that the most prominent long-term topics discussed since 1988 on the subject are “brand-cause fit”, “law and Ethics”, and “corporate and social identification”, while the most actively discussed topic presently is “sectors raising social taboos and moral debates”. The paper has two goals: first, it introduces the technique of CTM to the Marketing area, illustrating how Text Mining may guide, simplify, and enhance review processes while providing objective building blocks to be used in a review; second, it applies CTM to the C-RM field, uncovering and summarizing the most discussed topics. Mining text, however, is not aimed at replacing all subjective decisions that must be taken as part of literature review methodologies. (shrink)

In 2002, Luciano Floridi published a paper called What is the Philosophy of Information?, where he argues for a new paradigm in philosophical research. To what extent should his proposal be accepted? Is the Philosophy of Information actually a new paradigm, in the Kuhninan sense, in Philosophy? Or is it only a new branch of Epistemology? In our discussion we will argue in defense of Floridi’s proposal. We believe that Philosophy of Information has the types of features had by other (...) areas already acknowledge as authentic in Philosophy. By way of an analogical argument we will argue that since Philosophy of Information has its own topics, method and problems it would be counter-intuitive not to accept it as a new philosophical area. To strengthen our position we present and discuss main topics of Philosophy of Information. (shrink)

Zones of social abandonment are emerging everywhere in Brazil’s big cities—places like Vita, where the unwanted, the mentally ill, the sick, and the homeless are left to die. This haunting, unforgettable story centers on a young woman named Catarina, increasingly paralyzed and said to be mad, living out her time at Vita. Anthropologist João Biehl leads a detective-like journey to know Catarina; to unravel the cryptic, poetic words that are part of the “dictionary” she is compiling; and to trace (...) the complex network of family, medicine, state, and economy in which her abandonment and pathology took form. As Biehl painstakingly relates Catarina’s words to a vanished world and elucidates her condition, we learn of subjectivities unmade and remade under economic pressures, pharmaceuticals as moral technologies, a public common sense that lets the unsound and unproductive die, and anthropology’s unique power to work through these juxtaposed fields. _Vita’s_ methodological innovations, bold fieldwork, and rigorous social theory make it an essential reading for anyone who is grappling with how to understand the conditions of life, thought and ethics in the contemporary world. (shrink)

Casual sexual relationships are frequent relationship experiences in young adulthood that provide opportunities for many to explore sexual relationships and to construct their sexual identity. Empirical research on casual sex is still lacking outside North-American countries, despite evidence pointing to the need to contextualize sexual interactions in their own sociocultural context. In order to better understand casual sexual relationships, these should be examined in with novel samples in other countries where a “hookup culture” as it is described in the North-American (...) university campus is apparently absent. Through a qualitative study, we explored what casual sexual relationships consist of according to the perceptions of Portuguese college students. The thematic analysis of eight focus group interviews resulted in the generation of six themes, three of which are presented here: What CSRs are, regarding features and types of CSRs, Why individuals engage in CSRs, focusing on positive and negative motivations, and What one gets from CSRs, focusing on positive and negative outcomes of CSRs. Our findings showed that Portuguese emerging adults are familiarized with CSRs, particularly with one-night stand, friends with benefits and “curte”/hookup. Sexual interactions associated with other CSRs, such as booty call or fuck buddies, were mentioned but rarely associated with a distinctive label and established characteristics. Participants described the CSRs in a partially overlapping manner presenting some areas of ambiguity, such as with regard to sexual exclusivity and still-unlabeled sexual interactions. CSRs are generally evaluated as positively motivated and mainly beneficial. This study adds to the literature around casual sexual relationships by exploring and describing CSRs in a different sociocultural context, as well as indicating directions for future research in order to better prepare and empower young adults in their sexual and relational trajectories. (shrink)

This innovative volume is an extended intellectual conversation about the ways personal lives are being undone and remade today. Examining the ethnography of the modern subject, this preeminent group of scholars probes the continuity and diversity of modes of personhood across a range of Western and non-Western societies. Contributors consider what happens to individual subjectivity when stable or imagined environments such as nations and communities are transformed or displaced by free trade economics, terrorism, and war; how new information and medical (...) technologies reshape the relation one has to oneself; and which forms of subjectivity and life possibilities are produced against a world in pieces. The transdisciplinary conversation includes anthropologists, historians of science, psychologists, a literary critic, a philosopher, physicians, and an economist. The authors touch on how we think and write about contingency, human agency, and ethics today. (shrink)

BackgroundThe outbreak of novel coronavirus disease 2019 has caused a global panic and public concern due to its mortality ratio and lack of treatments/vaccines. Reduced levels of physical activity have been reported during the outbreak, affecting the normal daily pattern.ObjectiveTo investigate the relationship of physical activity level with sleep quality and the effects of reduction physical activity levels on sleep quality.MethodsA Google form was used to address personal information, COVID-19 personal care, physical activity, and mental health of 1,907 adult volunteers. (...) Binary logistic regression was used to verify the association of physical activity parameters and sleep quality.ResultsInsufficient physical activity levels were a risk factor to have disturbed sleep pattern [OR: 1.28, 95% CI ]; however, when the BMI was added to the analysis, there was no more statistical difference [OR: 1.23, 95% CI ]. On the other hand, we found that the reduction of physical activity levels was associated with negative changes in sleep quality [OR: 1.73, 95% CI ], regardless all the confounders [OR: 1.30, 95% CI ], unless when feeling of depression was added in Model 6 [OR: 1.28, 95% CI ].ConclusionDisruption in daily physical activity routine, rather than physical activity level, negatively influences sleep quality during the COVID-19 quarantine. (shrink)

O jornal Tribuna Criciumense foi o único impresso publicado na cidade de Criciúma no período deste escrito. Fundado em 1955, ele passou por três fases. Na primeira, produziu um discurso anticomunista, mas de maneira um pouco tímida. Na segunda fase, com curta duração, o impresso passou a valorizar a ideologia comunista e, ao mesmo tempo, a defesa do presidente João Goulart. A última fase foi marcada por ataques violentos contra o comunismo, em defesa do golpe civil-militar e da ditadura (...) implantada. Analisar essas fases e como os discursos anticomunista e pró-comunismo reverberaram no jornal se configura no objetivo deste escrito. (shrink)

O texto é uma resenha da Doutrina do Conceito hegeliana recém editada e publicada em português. O terceiro livro da Ciência da Lógica é estruturado em subjetividade, objetividade e ideia, com cada uma destas partes também desenvolvida numa estrutura tripartite. Nesta exposição, merece destaque o movimento contraditório de autodeterminação do conceito, no qual a universalidade se autodiferencia imanentemente em particularidade e o conceito retorna a si mesmo na forma da universalidade concreta. O conceito passa pelas diferentes formas de mediação na (...) teoria do silogismo, especialmente com a mediação da universalidade, quando o conceito se transforma em objetividade. Esta começa com a relação externa do mecanismo, avança para a relação interna do quimismo e conclui na teleologia, onde a liberdade é mais elevada que a necessidade. A Ideia, última parte da Doutrina do Conceito, é a unidade sintética entre conceito e objetividade, com destaque no capítulo da Ideia absoluta na qual Hegel formula uma noção de método como estrutura e movimento do conteúdo e da racionalidade. (shrink)

Resenha de: Hegel, G. W. F. Ciência da lógica: 1. A doutrina do ser. Tradução deChristian Iber, Marloren L. de Miranda, Federico Orsini e Agemir Bavaresco. Petrópolis, RJ: Vozes; Bragança Paulista, SP: Ed.Universitária São Francisco, 2016. 464 p. ISBN 9788532653086.************************************************************************************** ************************************ Com a tradução, os falantes da língua portuguesa têm em mãos uma obra filosófica estruturante do pensamento moderno e uma das mais importantes da História da Filosofia. Temos agora e nossas mãos, em língua portuguesa, uma obra de difícil acesso do (...) pensamento hegeliano e que um filósofo de língua portuguesa leria com muita dificuldade. A tradução, ora disponibilizada, tenta conciliar a difícil linguagem hegeliana escrita em alemão com a fluência típica do nosso português, permitindo uma compreensão mais ou menos fácil por parte do falante da língua portuguesa. (shrink)

Harmful but culturally cherished practices often endure in spite of the damages they cause. Meat consumption is increasingly becoming one of such cases and may provide an opportunity from which to observe these phenomena. Growing evidence indicates that current and projected production and consumption patterns are important contributors to significant environmental problems, public health degradation, and animal suffering. Our aim is to contribute to a further understanding of the psychological factors that may hinder or promote personal disposition to change food (...) habits to benefit each of these domains. Drawing from previous evidence, this study explores the proposition that some consumers are motivated to resort to moral disengagement strategies when called upon to consider the impacts of their food habits. Data were collected from six semi-structured focus groups with a sample of 40 participants. Although affirming personal duties towards preserving the environment, promoting public health, and safeguarding animal welfare, participants did not show personal disposition to change their meat consumption habits. Several patterns of response that resonate with the principles of moral disengagement theory were observed while discussing impacts and the possibility of change. Results seem to support the proposition that the process of moral disengagement may play a role in hindering openness to change food habits for the benefit of the environment, public health, and animals, and point towards the relevance of further exploring this approach. (shrink)

An overcomplete logic is a logic that ‘ceases to make the difference’: According to such a logic, all inferences hold independently of the nature of the statements involved. A negation-inconsistent logic is a logic having at least one model that satisfies both some statement and its negation. A negation-incomplete logic has at least one model according to which neither some statement nor its negation are satisfied. Paraconsistent logics are negation-inconsistent yet non-overcomplete; paracomplete logics are negation-incomplete yet non-overcomplete. A paranormal logic (...) is simply a logic that is both paraconsistent and paracomplete. -/- Despite being perfectly consistent and complete with respect to classical negation, nearly every normal modal logic, in its ordinary language and interpretation, admits to some latent paranormality: It is paracomplete with respect to a negation defined as an impossibility operator, and paraconsistent with respect to a negation defined as non-necessity. In fact, as it will be shown here, even in languages without a primitive classical negation, normal modal logics can often be alternatively characterized directly by way of their paranormal negations and related operators. So, instead of talking about ‘necessity’, ‘possibility’, and so on, modal logics could be seen just as devices tailored for the study of (modal) negation. This paper shows how and to what extent this alternative characterization of modal logics can be realized. (shrink)

O artigo tenta reconstruir alguns elementos acerca da passagem da Lógica da essência para a Lógica do conceito, da necessidade para a liberdade, na Ciência da Lógica hegeliana. No contexto da publicação dos duzentos anos dessa obra filosófica, a explicitação dessa passagem é referencial para a compreensão da Ciência da Lógica e de todo o pensamento hegeliano. O artigo procura sustentar que o binômio necessidade/contingência, um dos pares categoriais da Lógica da essência, não é adequado para a articulação da filosofia (...) hegeliana. Como Hegel afirma reiteradas vezes, é preciso superar a dura necessidade para dar lugar à lógica da liberdade. Para a discussão da problemática, a confrontação entre algumas categorias da essência, tais como substancialidade, necessidade, contingência e causalidade, e algumas categorias do conceito, tais como universalidade, particularidade e singularidade é o foco da exposição. Dessa discussão brota a noção hegeliana de liberdade e a sua relação com o sistema. (shrink)

Karl R. Popper: The open society and its enemies -- Ralf Dahrendorf: Liberty and civil society -- Raymond Plant: Social welfare without class warfare -- Gertrude Himmelfarb and Irving Kristol: The moral imagination -- Raymond Aron: The opium of the intellectuals -- Friedrich A. Hayek: The constitution of liberty -- Isaiah Berlin: Liberty and pluralism -- Michael J. Oakeshott: The conservative disposition -- Leo Strauss: Relativism and the crisis of modernity -- Edmund Burke: Liberty and duty -- James Madison vs. (...) Jean-Jacques Rousseau: Two views of self-government -- Alexis de Tocqueville: Democracy in America -- Winston S. Churchill: The English-Speaking Peoples and the Free World -- Limited and accountable Government -- Two kinds of rationalism -- Liberty as conversation. (shrink)

Despite recent progress in the identification of genes that regulate longevity, aging remains a mysterious process. One influential hypothesis is the idea that the potential for cell division and replacement are important factors in aging. In this work, we review and discuss this perspective in the context of interventions in mammals that appear to accelerate or retard aging. Rather than focus on molecular mechanisms, we interpret results from an integrative biology perspective of how gene products affect cellular functions, which in (...) turn impact on tissues and organisms. We review evidence suggesting that mutations that give rise to features resembling premature aging tend to be associated with cellular phenotypes such as increased apoptosis or premature replicative senescence. In contrast, many interventions in mice that extend lifespan and might delay aging, including caloric restriction, tend to either hinder apoptosis or result in smaller animals and thus may be the product of fewer cell divisions. Therefore, it appears plausible that changes in the number of times that cells, and particularly stem cells, divide during an organism's lifespan influence longevity and aging. We discuss possible mechanisms related to this hypothesis and propose experimental paradigms. BioEssays 30:567–578, 2008. © 2008 Wiley Periodicals, Inc. (shrink)

No livro dois da Ética Nicomaqueia, Aristóteles afirma com clareza que a prática reiterada de ações virtuosas leva à constituição de uma determinada disposição de caráter, ou seja, o hábito funcionaria como uma segunda natureza, em função da fixidez e estabilidade da disposição por ele constituída, o que aparentemente impediria qualquer modificação no que concerne ao caráter. O problema é que várias passagens do Corpus Aristotelicum parecem contradizer esta asserção, permitindo uma leitura diferente daquela que sugeriria a ideia do hábito (...) como algo que operasse de modo similar à natureza. Este artigo propõe-se investigar se é possível uma leitura que permita, nas Éticas, bem como em outras obras do Corpus Aristotelicum, a possibilidade da mudança de caráter, da decadência ou da reforma moral, bem como sua implicação na investigação sobre o problema do determinismo e da responsabilidade moral. (shrink)

We analyze axioms and postulates as speech acts. After a brief historical appraisal of the concept of axiom in Euclid, Frege, and Hilbert, we evaluate contemporary axiomatics from a linguistic perspective. Our reading is inspired by Hilbert and is meant to account for the assertive, directive, and declarative components of modern axiomatics. We will do this by describing the constitutive and regulative roles that axioms possess with respect to the linguistic practice of mathematics.

A comunicação divide-se em três partes. Na primeira, trata de apresentar os pressupostos conceituais da tese de Rousseau de que a vontade geral é irrepresentável. Na segunda, com base no ocorrido já ao início da Revolução Francesa, mostra que, historicamente, a tese não teve herdeiros. Na terceira parte apresenta as razões que autorizam sustentar a priori que todo poder político é necessariamente representativo e chama atenção para o fato e para o modo em que o Estado de Direito contemporâneo trata (...) de controlar e remediar as distorções políticas inerentes à natureza representativa do poder político. Palavras-chave: Rousseau. Vontade geral. Poder político. Representação política. (shrink)

Este artigo tem como objeto de investigação os principais níveis de fundamentação enquanto momentos estruturantes do sistema filosófico hegeliano. No contexto filosófico da comemoração dos duzentos anos de publicação da Enciclopédia das Ciências Filosóficas, o objeto do trabalho é a reconstrução dos momentos estruturantes da passagem da Ciência da Lógica para a Filosofia da Natureza, da Filosofia da Natureza para a Filosofia do Espírito e dessas para a esfera do Espírito Absoluto. O artigo não tem como meta a discussão de (...) tópicos intrínsecos à Ciência da Lógica ou à Filosofia do Espírito, mas visa à exposição de círculos da passagem dialética de uma esfera para a outra como um autodesenvolvimento sistemático qualitativo. Mesmo de caráter genérico, não aponta para a possível substantividade de uma parte do sistema, mas para as relações fundamentais entre os círculos. O texto é perpassado por uma chave interpretativa da filosofia hegeliana no sentido de que não é formado por partes fixas e estanques, mas é articulado na perspectiva de relações fundamentais caracterizadoras das interfaces entre as esferas. (shrink)