This study explored the associations between physical activity anxiety levels, and the perception of satisfaction of basic psychological needs, during Coronavirus Disease 2019 lockdown. Thus, 1,404 participants ranging from 18 to 89 years old completed a questionnaire in the period between 1st and 15th April 2021. The survey included sociodemographic data and the following validated instruments: the International Physical Activity Questionnaire, the Basic Need General Satisfaction Scale and the State-Trait Anxiety Inventory. The Kruskal-Wallis test was performed to examine variation in (...) anxiety levels and BPN satisfaction according to PA category. Spearman’s Rho correlations coefficients were used to determine the association between anxiety levels and psychological needs. Individuals presenting a higher level of PA revealed lower levels of anxiety-state. Differences between elements from different levels of PA were found for the autonomy, competence, and relatedness psychological needs, suggesting that those who feel their BPN as more satisfied have higher levels of PA. The study found statistically significant correlations between anxiety-state and the satisfaction of the needs for autonomy, competence, and relatedness. These findings support the importance that PA has in the anxiety levels during social isolation, emphasizing the importance of multidisciplinary teams in an individual-based approach. (shrink)

The aim of the article is to offer an inventory of labour and trade-union struggle in twentieth century Brazil. The article thus focuses on the principal phases of this struggle, on the major breakthroughs and the major setbacks encountered. It ends with an overview of the challenges characteristic of the current social struggles in Brazil.

Nowadays and worldwide, the attention is focused on coronavirus disease, and its consequences on mental health are yet to be fully understood. It is important to capture differences in anxiety levels among populations, groups, and the gender-related variation. Therefore, the present study had two main purposes: to characterize the levels of state anxiety and trait anxiety by examining gender-related, sleep-related, and physical activity-related variations in a nonrepresentative sample of the Portuguese population during the first weeks of lockdown; and to explore (...) the possible relationship between trait anxiety and state anxiety and the possible role of gender as a moderator. This cross-sectional study comprised 1,332 Portuguese adults recruited online during COVID-19 outbreak measures. Participants answered to sociodemographic data and the Portuguese version of the State-Trait Anxiety Inventory. Gender differences were found in both state anxiety and trait anxiety with females presenting higher values. People reporting doing more physical activity than usual during COVID-19 lockdown presented lower levels of state anxiety. People reporting more satisfaction with the quality of sleep presented lower levels of both state anxiety and trait anxiety. Variation associated with the physical activity level was significantly different among groups in both state anxiety and trait anxiety. When analyzing in more detail separating the levels of physical activity, participants performing moderate and high physical activity showed lower values of state and trait anxiety compared to participants with low physical activity. Participants performing high physical activity also showed lower values of state anxiety compared to participants performing moderate physical activity. Higher levels of trait anxiety were related to higher levels of state anxiety, but this association was not moderated by gender. Interventions aiming to support people psychologically during this outbreak should consider anxiety as well as gender and possible behavioral changes in sleep and physical activity, for example. Health professionals should not only consider the anxiety related to the situation we are living but also address trait anxiety to help overcome COVID-19 psychological consequences. (shrink)

The coming to office of Jair Bolsonaro in Brazil has brought to the fore the need to understand the rise of the far right and to come to terms with the conflicted legacies of more than a decade of rule under the Workers’ Party. This forum brings together six leading intellectuals from different traditions on the left and introduces their reflections on the contradictions and complexities of the Workers’ Party, the 2008 crisis, the June 2013 protests, the weakness of the (...) Brazilian left, corruption, and on how to characterise Bolsonaro’s regime. Their interventions offer crucial insights that are relevant today not just to Brazil, or even Latin America, but to the politics of the left worldwide. (shrink)

The coming to office of Jair Bolsonaro in Brazil has brought to the fore the need to understand the rise of the far right and to come to terms with the conflicted legacies of more than a decade of rule under the Workers’ Party. This forum brings together six leading intellectuals from different traditions on the left and introduces their reflections on the contradictions and complexities of the Workers’ Party, the 2008 crisis, the June 2013 protests, the weakness of the (...) Brazilian left, corruption, and on how to characterise Bolsonaro’s regime. Their interventions offer crucial insights that are relevant today not just to Brazil, or even Latin America, but to the politics of the left worldwide. (shrink)

We examine the influence of face-based judgments of CFO and CEO honesty on earnings management for the largest publicly traded companies in America. After controlling for incentives and opportunities to manage earnings, CFOs perceived to be less honest engage in higher levels of accruals earnings management and real earnings management. The beneficial impact of perceived honesty on earnings quality is most pronounced when both the CFO and the CEO are perceived to be more honest. Findings are consistent with our conjecture (...) that both the CFO and CEO contribute to a firm’s financial reporting environment. (shrink)

In this paper I present a formalization of the theory of ideal concepts applied to the concept of God. It is done within a version of the Simplest Quantified Modal Logic (SQML) and attempts to solve three meta-problems related to the concept of God: the unicity of extension problem, the homogeneity/heterogeneity problem and the problem of conceptual unity.

Tradición patrimonial y administración señorial en la América Latina Aspectos básicos del liberalismo brasileño del siglo XIX - El pensamiento conservador en Colombia, a lo largo del siglo XIX - El pensamiento conservador en Colombia, a lo largo del siglo XX - Iberoamérica como totalidad - Clientelismo mesianismo y liberación en la cultura Latinoamericana - Catequesis misionera y "saber de salvación" en el Brasil colonial - La filosofía brasileña en los siglos XVII, XVIII y XIX - La filosofía brasileña en (...) el siglo XX - Positivismo y realidad Latinoamericana - Cinco concepciones de la integración Latinoamericana - Etica y política en la cultura brasileña - Catolicismo y modernidad : la función moralizadora de la iglesia. (shrink)

In this paper, we propose Kripke-style models for the logics of evidence and truth LETJ and LETF. These logics extend, respectively, Nelson’s logic N4 and the logic of first-degree entailment with a classicality operator ∘ that recovers classical logic for formulas in its scope. According to the intended interpretation here proposed, these models represent a database that receives information as time passes, and such information can be positive, negative, non-reliable, or reliable, while a formula ∘A means that the information about (...) A, either positive or negative, is reliable. This proposal is in line with the interpretation of N4 and FDE as information-based logics, but adds to the four scenarios expressed by them two new scenarios: reliable information for the truth and for the falsity of a given proposition. (shrink)

This paper introduces the logic _Q__L__E__T_ _F_, a quantified extension of the logic of evidence and truth _L__E__T_ _F_, together with a corresponding sound and complete first-order non-deterministic valuation semantics. _L__E__T_ _F_ is a paraconsistent and paracomplete sentential logic that extends the logic of first-degree entailment (_FDE_) with a classicality operator ∘ and a non-classicality operator ∙, dual to each other: while ∘_A_ entails that _A_ behaves classically, ∙_A_ follows from _A_’s violating some classically valid inferences. The semantics of _Q__L__E__T_ (...) _F_ combines structures that interpret negated predicates in terms of anti-extensions with first-order non-deterministic valuations, and completeness is obtained through a generalization of Henkin’s method. By providing sound and complete semantics for first-order extensions of _FDE_, _K3_, and _LP_, we show how these tools, which we call here the method of _anti-extensions + valuations_, can be naturally applied to a number of non-classical logics. (shrink)

Ubico indicios de mitos nacionales analizando obras narrativas (de Borges y algunos otros autores), y dichos acerca de Borges, centrándome en cómo se verifica, en la narrativa de Borges, (y también en sus intervenciones públicas y en lo que se dice sobre su figura) la irrupción del peronismo. Propongo un cambio de escala: sin intentar interpretar los grandes momentos constitutivos entendiéndolos como mitos de origen, intento constituir series, de características cuasi-míticas, a partir de poner en relación a breves sintagmas que (...) se reiteran en distintas unidades narrativas. Elementos transversales, que van de un relato a otro. Sintagmas que se analizan tomando al conjunto de la obra de Borges como paradigma, y no sólo relatos aislados. En primer término, exploro ciertas constantes en algunos relatos del período 1945-54. Luego me detengo en una serie de versiones contemporáneas sobre un Borges ciego a quien un joven peronista ayuda a cruzar la calle. En tercer lugar. el tema de la aparición de relatos oníricos, literariamente enunciados, sobre personas con garra de pájaro, vinculándolos a los dilemas morales de la élite intelectual en los tiempos del primer peronismo. En tanto estos conjuntos tienen mucho en común con los mitos al ser reelaboraciones sucesivas de un elemento narrativo, podrían ser abordadas con métodos de análisis míticos propios de la antropología estructural. No obstante, el material utilizado tiene diferencias con las mitologías clásicas: a) tiene versiones orales, pero también escritas; b) hechos ficcionales, pero también históricos; c) admiten un orden cronológico verificable. Por lo tanto, arriesgo aquí una exploración metodológica y teórica más bien experimental, aunque deudora de Lévi-Strauss. Concluyo que en estos dos conjuntos se verifica el funcionamiento un sistema ideológico, que es el de la formación nacional argentina, con sus tensiones y crisis. (shrink)

Sexting has been defined as sending, receiving, or forwarding sexually explicit messages, images, or photos to others through digital platforms, and can assume more consensual or more abusive and violent forms. This study aims to explore the prevalence of abusive sexting in Portuguese adolescents and the psychological characteristics of sexting abusers in terms of emotional and behavioral problems, potential markers of psychopathy, childhood trauma and maltreatment, and different forms of aggression. A cross-sectional study was conducted with 4,281 participants, aged 12–20 (...) years, of whom 204 engaged in abusive sexting behaviors and 182 self-identified as being a non-consensual sexting victim. Abusive sexting was more common among boys and middle adolescents, and abusive sexting victims were more likely to be children of single-parent families. Engaging in abusive sexting and being a victim of abusive sexting were also related to behavioral and emotional problems, callousness, experiences of neglect and abuse in childhood, and various forms of aggression. Implications for future research and intervention are discussed. (shrink)

The intellectual history of the last quarter of this century has been marked by the growing influence of Africana thought--an area of philosophy that focuses on issues raised by the struggle over ideas in African cultures and their hybrid forms in Europe, the Americas, and the Caribbean. Existentia Africana is an engaging and highly readable introduction to the field of Africana philosophy and will help to define this rapidly growing field. Lewis R. Gordon clearly explains Africana existential thought to a (...) general audience, covering a wide range of both classic and contemporary thinkers--from Douglass and DuBois to Fanon, Davis and Zack. (shrink)

Any plausibly just market exchange must balance two conflicting moral considerations: non-worseness (Wertheimer, 1999) and euvoluntariness (true voluntariness; Munger, 2011). We propose an analytical theory of just market exchange that partly resolves this conflict.

Resenha de "O contrato racial" de Charles W. Mills.

Este trabajo describe la vida y escritos de L. Polo hasta 1996. A los 25 años descubrió su método de pensamiento: el abandono del limite mental. Vivió en Madrid, Roma, Granada y Pamplona. Amante de la verdad y de la libertad personal. Entre sus obras más profundas se encuentran las que componen su Curso de teoría del conocimiento y su Antropología trascendental.

'Estética da contradição' tem como objetivo constituir o corpo crítico da contradição no seio da história da estética em seus mais significativos momentos. O conceito de contradição estética é um universo autônomo, simultaneamente constituído e integrado.

We uncover fundamental dimensions of the process through which organizations embed the practice of fraternity through embarking on an organizational journey in the direction of the common good. Building on the latest encyclical of Pope Francis, _Fratelli Tutti_, about fraternal and social friendship, we offer insight into the understanding of what it means to become a fraternal organization and reflect on the key ethical and paradoxical challenges for organizations aiming at collectively contributing to the common good. We add to previous (...) work by characterizing this journey as a process involving unique ethical challenges that emerge from the paradoxes associated with this process and how this might change the nature of the relationships between organizations and others within the organizational landscape. (shrink)

Testemunhos na primeira pessoa dados por quem aceitou recordar os factos, os dramas e os sucessos do tempo de mudança e transformação vertiginosa que constituiu o período de vida do Padre Manuel Antunes, professor que marcou indelevelmente várias gerações.

In his work, Bernard Suits presents and pursues a stated objective: to define ‘game’ or, more precisely, ‘game-playing’. In The Grasshopper: Games, Life and Utopia, the author seeks a definition not as a ‘commitment to the universal fruitfulness of definition construction’, but rather with the idea ‘that some things are definable, and some are not’. This is something he believed could resolve many of the issues surrounding the debate on ‘game’ and ‘play’, such as those with Huizinga (in Homo Ludens) (...) or proposed by the anti-definitionism of Wittgenstein, a philosopher who did not accept that it was possible to define ‘game’. In this article, we will trace Suits’ definitional steps and aim to critique his resolution as a kind of ‘formalism’, as it tended to prioritize rules. Furthermore, notwithstanding the merit of his theoretical endeavor – seen in the attempt to define a social component that is so complex and the target of the most diverse interpretations and misconceptions –, it seems to us that, with his theoretical unifying element (lusory attitude), the author has summoned another problem to the debate, that of ‘subjectivism’, rather than a solution (especially to his formalism), even subjecting himself to comparisons with other conceptions (e.g. Fichte) that are also problematic. This aspect will also be criticized. The attention of this article will shift to these two lines of critique, drawing on an insightful analysis of Malaby’s work at a specific juncture, aiming to delve further into the subject and taking an additional step. (shrink)

Este artigo aborda as motivações para a docência e os desafios enfrentados por licenciandos em psicologia. A metodologia utilizada foi a abordagem qualitativa, e o instrumento de coleta de dados questionário online com questões abertas e fechadas. Participaram do estudo, onze estudantes de cursos de licenciatura em psicologia de quatro instituições universitárias das regiões sul e sudeste do Brasil. Os resultados demonstraram que a escolha pela licenciatura se deu, sobretudo, pelo interesse e curiosidade na área da educação, apropriação dos saberes (...) pedagógicos, ampliação do mercado de trabalho, bem como as possibilidades de atuação profissional. As dificuldades apontadas revelaram: a falta de informações sobre as especificidades do curso de licenciatura e da atuação do professor de psicologia e a ausência de docentes com saberes pedagógicos para atuar na licenciatura em psicologia. Embora seja considerada formação complementar entre os estudantes, observou-se possibilidades de um ensino-aprendizagem de psicologia engajada e inventiva. (shrink)

Mathematics is a critical part of much scientific research. Physics in particular weaves math extensively into its instruction beginning in high school. Despite much research on the learning of both physics and math, the problem of how to effectively include math in physics in a way that reaches most students remains unsolved. In this paper, we suggest that a fundamental issue has received insufficient exploration: the fact that in science, we don’t just use math, we make meaning with it in (...) a different way than mathematicians do. In this reflective essay, we explore math as a language and consider the language of math in physics through the lens of cognitive linguistics. We begin by offering a number of examples that show how the use of math in physics differs from the use of math as typically found in math classes. We then explore basic concepts in cognitive semantics to show how humans make meaning with language in general. The critical elements are the roles of embodied cognition and interpretation in context. Then, we show how a theoretical framework commonly used in physics education research, resources, is coherent with and extends the ideas of cognitive semantics by connecting embodiment to phenomenological primitives and contextual interpretation to the dynamics of meaning-making with conceptual resources, epistemological resources, and affect. We present these ideas with illustrative case studies of students working on physics problems with math and demonstrate the dynamical nature of student reasoning with math in physics. We conclude with some thoughts about the implications for instruction. (shrink)

In this paper I sketch some lines of response to Mark Colyvan’s indispensability arguments for the existence of inconsistent objects, being mainly concerned with the indispens ability of inconsistent mathematical entities. My response will draw heavily on Jody Azzouni’s deflationary nominalism.

For more than a century the notion of a pre-established harmony between the mathematical and physical sciences has played an important role not only in the rhetoric of mathematicians and theoretical physicists, but also as a doctrine guiding much of their research. Strongly mathematized branches of physics, such as the vortex theory of atoms popular in Victorian Britain, were not unknown in the nineteenth century, but it was only in the environment of fin-de-siècle Germany that the idea of a pre-established (...) harmony really took off and became part of the mathematicians’ ideology. Important historical figures were in this respect David Hilbert, Hermann Minkowski and, somewhat later, Albert Einstein. Roughly similar ideas can be found also among British theorists, among whom Arthur Eddington, Arthur Milne, and Paul Dirac are singled out. Although largely limited to the period 1870–1940, the paper also considers Max Tegmark’s recent hypothesis of the universe being a one-to-one reflection of mathematical structures. (shrink)

In physics education, equations are commonly seen as calculation tools to solve problems or as concise descriptions of experimental regularities. In physical science, however, equations often play a much more important role associated with the formulation of theories to provide explanations for physical phenomena. In order to overcome this inconsistency, one crucial step is to improve physics teacher education. In this work, we describe the structure of a course that was given to physics teacher students at the end of their (...) master’s degree in two European universities. The course had two main goals: To investigate the complex interplay between physics and mathematics from a historical and philosophical perspective and To expand students’ repertoire of explanations regarding possible ways to derive certain school-relevant equations. A qualitative analysis on a case study basis was conducted to investigate the learning outcomes of the course. Here, we focus on the comparative analysis of two students who had considerably different views of the math-physics interplay in the beginning of the course. Our general results point to important changes on some of the students’ views on the role of mathematics in physics, an increase in the participants’ awareness of the difficulties faced by learners to understand physics equations and a broadening in the students’ repertoire to answer “Why?” questions formulated to equations. Based on this analysis, further implications for physics teacher education are derived. (shrink)

This paper proposes different approaches to design, referring to gambiarra practices and artifacts and their relation to complexity theory, evoking critical theorists that take undecidability into account in order to link gambiarra to operations that breed complexity and responsibility. The word gambiarra comes from Brazilian slang and describes an intervention or artifact meant to provide a provisory solution to an unexpected event or crisis. This kind of alternative design differs radically from conventional design because it does not come from formally (...) trained, engineer-minded, projects. Instead, it lacks control, stability and durability. As it offers no permanent solution, it opens room for further accidents and is messy, especially if compared to a conservative model for creation that praises human predominance, soundness and efficiency. Therefore, gambiarra often has negative connotations that this analysis aims to challenge, by relating it to principles of complexity theory. Complexity theory is a transdisciplinary field for research aimed at the organization of living systems, with a vast understanding of networks and what life and govern are. It gathers insights from different disciplines to explore the interconnectivity between individuals, their systems and environment. It unveils how ambivalent information/noise relationships are fundamental for the increase of diversity in a system. It also displays the intelligent dynamics resulting from seemingly insignificant neighborhood relations that collectively make it possible to adapt and continuously change structures. With that in mind, the “deficient” aspect of gambiarra becomes more valuable, as it hints at a potential to generate new information and structures beyond entropic models that perpetuate the same logics across time. Michel Serres’s information theory presented in the book The Parasite is brought up in comparison to gambiarra, in order to explore the potential of interdependent ambiguous relationships that may not fit in dominant forms of discourse. Concomitantly, Vilém Flusser’s notion of responsibility reinforces the argument that a fabric of dynamic differences can emerge out of mutual engagement and indeterminacy. Underlying, this paper concerns with drafting ecological discourses and practices that can embrace contradictions and the plurality of worlds, noticing complex phenomena that have been pushed to the margins, while also decentralizing from hegemonic models. It questions the predominance of the prevailing design paradigm in the search for non-eurocentric and non-anthropocentric human-environment relationships and forms of provision of human needs. (shrink)

Resenha do livro de István Mészáros, A Educação para Além do Capital.

O objetivo deste artigo é apresentar a relação entre Filosofia política e democracia na obra de Michael Walzer, a partir da influência exercida sobre ele por John Rawls. Para fazer isto, será feita uma breve apresentação das visões de Rawls sobre aquela relação. Após, será mostrado que Walzer corrobora e amplia a concepção de Rawls. Por último, será descrito o papel de crítica imanente que Walzer atribui à Filosofia política nas democracias contemporâneas, trazendo-a da pretensão de guia da política, baseada (...) na contemplação privilegiada de qualquer suposta ordem transcendente e vinculante, para um papel de engajamento comprometido apenas com a própria ordem democrática. (shrink)

We prove that no restriction of the sine function to any (open and nonempty) interval is definable in $\langle\mathbf{R}, +, \cdot, , and that no restriction of the exponential function to an (open and nonempty) interval is definable in $\langle \mathbf{R}, +, \cdot, , where $\sin_0(x) = \sin(x)$ for x ∈ [ -π,π], and $\sin_0(x) = 0$ for all $x \not\in\lbrack -\pi,\pi\rbrack$.

The main aim of this paper is to introduce first-order versions of logics of evidence and truth, together with corresponding sound and complete Kripke semantics with variable and constant domains. According to the intuitive interpretation proposed here, these logics intend to represent possibly inconsistent and incomplete information bases over time. The paper also discusses the connections between Belnap-Dunn’s and da Costa’s approaches to paraconsistency, and argues that the logics of evidence and truth combine them in a very natural way.

Aurélio Agostinho, when he was consecrated bishop in Hippo, had contact with a community in a situation of extreme social inequality, and adding to his understanding of bidirectional love (to God and neighbor), translated into nonconformity with the suffering of others, in the function as a bishop he had the opportunity to fight with the weapons at his disposal for a less undignified life for the poorest. Therefore, the concept of poverty that appears between the lines of his texts and (...) sermons is translated as a lack of material resources that makes it impossible for people to get the basics for survival. Among the weapons used by the philosopher bishop is the exhortation in his sermons, which in addition to denouncing the intense inequality of society, pondered on ways to resolve this huge gap between rich and poor. Thus, in this article we will analyze Augustine's lucubrations in sermons: 345, 355, 60, 61, 161, 14, which critically reflect poverty and wealth. The aforementioned sermons stand out on the subject for their critical reflections, because, although they treat the rich and their accumulation of wealth very harshly, showing solidarity with the less favored, and at different times they also have a critical look at the poor they idealized as a dream., desire or life goal to possess riches. (shrink)