The purpose of this randomized controlled study was to investigate the impact of a 12-week physical education program on the self-efficacy of overweight schoolgirls. We randomly assigned 60 overweight schoolgirls to either an experimental moderate to vigorous aerobic exercise group or a control group that received non-specific regular PE lessons with activities chosen by the curricular teacher mainly focused on team games and sports skills that aimed to achieve general psycho-physical wellness. To assess the starting level of students and significant (...) changes reached, at baseline and after training, a battery of standardized assessment motor tests and a psychometric scale were administered. At the end of the intervention, the experimental group reported a considerable decrease in body mass index and a large improvement in self-efficacy. No significant changes were found in the CG. The results suggested that the 12-week moderate to a vigorous aerobic exercise program is an effective weight loss intervention and a vehicle to promote a range of outcomes important to the qualitative growth of adolescents. In fact, it could provide a positive and significant impact on the self-efficacy of overweight schoolgirls. (shrink)

This high-level study discusses Newtonian principles and 19th-century views on electrodynamics and the aether. Additional topics include Einstein's electrodynamics of moving bodies, Minkowski spacetime, gravitational geometry, time and causality, and other subjects. Highlights include a rich exposition of the elements of the special and general theories of relativity.

Recordando a Bachelard a medio siglo de su muerte (2011) -- Filosofia de la relatividad (2011) -- La proliferación de los conceptos de especie en la biología evolucionista (2010).

This essay concerns the dignity of nonhuman animals. It is composed of three sections. The first recounts my experience of a Moscow Circus performance and records some of my thoughts, feelings, and observations of this circus' famous bears. As is obvious from that account, the performance and presentation of the bears seemed to me to be undignified in a nontrivial, that is, morally objectionable sense of the word. The second section of the essay tries to specify that sense, to identify (...) the wrong(s) with these sorts of undignified performances, by developing a moral sense of dignity that might extend, generally, to nonhuman animals. I believe that the setting of this performance and my own frame of mind—the fact that it took place in Moscow and in the midst of my exposure to sites and stories of communist oppression—helped me to see the oppression of human and nonhuman animals as linked and the performance as a performance of power relations. The third section of the essay explores these power relations from an ecofeminist perspective through the circus' depiction of the 'momma bear.'. (shrink)

: This essay concerns the dignity of nonhuman animals. It is composed of three sections. The first recounts my experience of a Moscow Circus performance and records some of my thoughts, feelings, and observations of this circus' famous bears. As is obvious from that account, the performance and presentation of the bears seemed to me to be undignified in a nontrivial, that is, morally objectionable sense of the word. The second section of the essay tries to specify that sense, to (...) identify the wrong(s) with these sorts of undignified performances, by developing a moral sense of dignity that might extend, generally, to nonhuman animals. I believe that the setting of this performance and my own frame of mind—the fact that it took place in Moscow and in the midst of my exposure to sites and stories of communist oppression—helped me to see the oppression of human and nonhuman animals as linked and the performance as a performance of power relations. The third section of the essay explores these power relations from an ecofeminist perspective through the circus' depiction of the 'momma bear.'. (shrink)

Volume 19, Issue 9, September 2019, Page 37-39.

A critical survey of the main philosophical theories about events and event talk, organized in three main sections: (i) Events and Other Categories (Events vs. Objects; Events vs. Facts; Events vs. Properties; Events vs. Times); (ii) Types of Events (Activities, Accomplishments, Achievements, and States; Static and Dynamic Events; Actions and Bodily Movements; Mental and Physical Events; Negative Events); (iii) Existence, Identity, and Indeterminacy.

This paper is concerned with certain ontological issues in the foundations of geographic representation. It sets out what these basic issues are, describes the tools needed to deal with them, and draws some implications for a general theory of spatial representation. Our approach has ramifications in the domains of mereology, topology, and the theory of location, and the question of the interaction of these three domains within a unified spatial representation theory is addressed. In the final part we also consider (...) the idea of non-standard geographies, which may be associated with geography under a classical conception in the same sense in which non-standard logics are associated with classical logic. (shrink)

Husserl proceeds to show how a world-representation emerges from our world-experience, and how an idea of the world plays a role in the expansion of world-representations. He also draws our attention to the appropriation of other world-representations in a process of adjustment and compensation leading to intersubjective world-representations, and offers an analysis of the status of world-representations within transcendental phenomenology. In this article I will underline the relevance of Husserl’s concept of horizonedness to the characterization of the three levels of (...) world-experience, worldrepresentation, and the world as an idea. In getting clear on this relevance several points must be emphasized. (shrink)

Considering topology as an extension of mereology, this paper analyses topological variants of mereological essentialism (the thesis that an object could not have different parts than the ones it has). In particular, we examine de dicto and de re versions of two theses: (i) that an object cannot change its external connections (e.g., adjacent objects cannot be separated), and (ii) that an object cannot change its topological genus (e.g., a doughnut cannot turn into a sphere). Stronger forms of structural essentialism, (...) such as morphological essentialism (an object cannot change shape) and locative essentialism (an object cannot change position) are also examined. (shrink)

El autor analiza algunos aspectos de los debates sobre la democracia en la llamada transición de los años ̓80, para advertir sobre la preeminencia que adquirieron las disposiciones procedimentales y representativas —elevadas a condición metanormativa— y la conceptualización de la política como producción de consensos. Esas orientaciones impidieron una recuperación de las experiencias democráticas que la dictadura intentó cancelar, y fueron incapaces de poner en foco las figuras de subjetividad que el terror estatal y el neoliberalismo produjeron en tanto intervenciones (...) sobre las tramas sociales. Finalmente, el autor se detiene brevemente en algunas experiencias políticas democratizadoras, en tanto formas de aparición de los pueblos en estos últimos 40 años. (shrink)

Connects the work of Merleau-Ponty to environmental studies.

_Philosophically explores the topic of emotional depth._.

: This essay relates scenes from Beauvoir's novels to her views of female eroticism and frigidity in The Second Sex. Expressions of frigidity signal unjust power relations in Beauvoir's literature. She constructs frigidity as a symbolic means of rejecting dominance in heterosexual relations. Thus frigidity need not be interpreted, as it sometimes is, as a form of bad faith. The essay concludes with some thoughts on the relevance of Beauvoir's view of frigidity to contemporary feminism.

This book describes the mathematical aspects of the semantics of programming languages. The main goals are to provide formal tools to assess the meaning of programming constructs in both a language-independent and a machine-independent way, and to prove properties about programs, such as whether they terminate, or whether their result is a solution of the problem they are supposed to solve. In order to achieve this the authors first present, in an elementary and unified way, the theory of certain topological (...) spaces that have proved of use in the modelling of various families of typed lambda calculi considered as core programming languages and as meta-languages for denotational semantics. This theory is now known as Domain Theory, and was founded as a subject by Scott and Plotkin. One of the main concerns is to establish links between mathematical structures and more syntactic approaches to semantics, often referred to as operational semantics, which is also described. This dual approach has the double advantage of motivating computer scientists to do some mathematics and of interesting mathematicians in unfamiliar application areas from computer science. (shrink)

Reasons-first theorists claim that facts about reasons for attitudes are normatively primitive, and that all other normative facts ultimately reduce to facts about reasons. According to their view, for example, the fact that something is good ultimately reduces to facts about reasons to favour it. I argue that these theories face a challenging dilemma due to the normativity of arational lifeforms, for instance the fact that water is good for plants. If all normative facts are, ultimately, facts about reasons for (...) attitudes, then reasons-first theorists must either (a) show that these facts do reduce to facts about reasons, or (b) concede that they do not and, instead, show that this is not a problem for their view. Both options, however, are riddled with difficulties—or so I will try to argue. (shrink)

This article's purpose is to show how heidegger and merleau-Ponty re-Visioned aesthetic linearity and to relate this re-Visioning through the lines of language to generations of newly-Significant 'lines of thought'. By delineating their different senses and functions, I distinguish (what I refer to as) "in-Lines" from outlines, Establishing that the former is a primary mode and arguing that the latter's limited and restrictive connotations fails to appreciate the 'opening' of creative significance apparent in the phenomenon of linearity. From these considerations, (...) I also construct a defense of heidegger's thesis that the nature of art is, Broadly speaking, Language itself. (shrink)

Neste artigo, temos como objetivo perscrutar o funcionamento da verbo-visualidade de uma perspectiva dialógica do discurso, utilizando, como material de análise, uma videomontagem humorística acerca do ator político Dilma Rousseff, durante a campanha presidencial brasileira do ano de 2010. Primeiramente, procuramos refletir acerca de alguns pressupostos teórico-metodológicos de Bakhtin e de Brait, qual seja, o de verbo-visualidade, alicerçado na concepção bakhtiniana de linguagem. Em um segundo momento, detivemo-nos na análise do texto objeto do artigo, que se pautou na seguinte indagação: (...) como contribuem e funcionam os elementos verbais e visuais para produção e direcionamento de sentidos na videomontagem? Nossa hipótese é a de que os discursos carregados pela montagem criam uma trilha ideológica de sentido que leva os interlocutores a interpretar a então candidata como uma pessoa sem discurso, manipulável. Diante do exposto, tentaremos demonstrar a hipótese que sustentamos. (shrink)

This paper focuses on the disturbing mixture of fantasy with reality in the massacre at Columbine, where the perpetrators appear to have made a game or 'fun' of their killing Because of the deception involved and despite their immersion in violent media, I argue that they could not have been totally confused about the difference between play and actual violence. Huizinga's notion of play and Merleau-Ponty's reversibility thesis are applied to the situation.

The High Line – a public park on a repurposed railway track in New York City – first opened to the public in 2009, and has been increasingly celebrated as a model public space, and as a democratic project directed by community. Artistic and amateur photographic practices have significantly informed the High Line’s design, landscaping, publicity, urban policy, use and constellations of community. This photo-conceptual essay critically considers the constitutive function of the photographic image, as photography produces, interpellates and defines (...) the public and public sphere of the High Line. However, these imaging practices have also taken increasingly regulated form, and endorse conservative forms of community, personhood and publicness. The new park’s imaging practices may be understood as supplementary to neoliberal forms of property accumulation, in fact diminishing public space even as they purport to represent it. Drawing from the historical avant-garde, feminist critiques of representation and anti-capitalist urban theory, the following photographic series critiques the High Line’s photographic apparatus, from within a practice of photography, and from a position within the field of contemporary art. (shrink)

This essay relates scenes from Beauvoir's novels to her views of female eroticism and frigidity in The Second Sex. Expressions of frigidity signal unjust power relations in Beauvoir's literature. She constructs frigidity as a symbolic means of rejecting dominance in heterosexual relations. Thus frigidity need not be interpreted, as it sometimes is, as a form of bad faith. The essay concludes with some thoughts on the relevance of Beauvoir's view of frigidity to contemporary feminism.

This essay relates scenes from Beauvoir's novels to her views of female eroticism and frigidity in The Second Sex. Expressions of frigidity signal unjust power relations in Beauvoir's literature. She constructs frigidity as a symbolic means of rejecting dominance in heterosexual relations. Thus frigidity need not be interpreted, as it sometimes is, as a form of bad faith. The essay concludes with some thoughts on the relevance of Beauvoir's view of frigidity to contemporary feminism.

This essay relates scenes from Beauvoir's novels to her views of female eroticism and frigidity in The Second Sex. Expressions of frigidity signal unjust power relations in Beauvoir's literature. She constructs frigidity as a symbolic means of rejecting dominance in heterosexual relations. Thus frigidity need not be interpreted, as it sometimes is, as a form of bad faith. The essay concludes with some thoughts on the relevance of Beauvoir's view of frigidity to contemporary feminism.