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Ephemeroptera (Insecta) ocorrentes no leste do Estado do Mato Grosso, Brasil
Shimano, Yulie;Salles, Frederico Falc?o;Cabette, Helena Soares Ramos;
Biota Neotropica , 2011, DOI: 10.1590/S1676-06032011000400021
Abstract: aiming to present a survey of ephemeroptera fauna of ephemeroptera from mato grosso state we investigated mayfly nymphs mainly from two hydrographic basins located in the eastern area of the state. sixty-seven species/morphospecies in 41 genera and eight families were encountered. four species (cloeodes redactus waltz & mccafferty, 1987 and waltzoyphius roberti thomas & peru, 2002 [baetidae], tricorytopsis chiriguano molineri, 2001 [leptohyphidae] and microphlebia surinamensis savage & peters, 1983 [leptophlebiidae]) are recorded for the first time from brazil. the families euthyplociidae, polymitarcyidae and coryphoridae are recorded for the first time from mato grosso, as well as 19 genera and 18 species. twenty-five species could not be identified due to the lack of knowledge regarding the nymphal stage of their respective genera. as demonstrated in others surveys of mayflies in brazil, the order is much more diverse than currently recognized, especially if we consider that several physiognomies and hydrographic basins of the state remain undocumented.
Distribui??o espacial das guildas tróficas e estrutura??o da comunidade de Ephemeroptera (Insecta) em córregos do Cerrado de Mato Grosso, Brasil
Shimano, Yulie;Salles, Frederico F.;Faria, Luiz R. R.;Cabette, Helena S. R.;Nogueira, Denis S.;
Iheringia. Série Zoologia , 2012, DOI: 10.1590/S0073-47212012000200011
Abstract: we analyzed the structure of the functional feeding groups of ephemeroptera in five different types of substrates (litter in riffles, backwater litter, wood, stones and roots) from first to fifth orders at the pindaíba river basin, state of mato grosso, brazil. we also studied the specificity and frequency of the organism, and if the functional approach reflects changes within the community through ordination analysis. our results assemble information about the functional classification of mayfly nymphs and show that scrapers were the most abundant, and gathering - collectors are the more diverse. third order streams were the most richest and most abundant while functional feeding group distribution corroborated the predictions of the river continuum concept. besides, communities were much more taxonomically structured than functionally structured. this fact underlies the importance of the biology of organisms, and not only the functional feeding group, for substrate selection. the preference of some genera for specific substrates confirms this value.
Composi??o e distribui??o da fauna de Ephemeroptera (Insecta) em área de transi??o Cerrado-Amaz?nia, Brasil
Shimano, Yulie;Cabette, Helena S. R.;Salles, Frederico F.;Juen, Leandro;
Iheringia. Série Zoologia , 2010, DOI: 10.1590/S0073-47212010000400004
Abstract: the objective of this study was to respond if exist a pattern on the spatial distributions of ephemeroptera nymphs in different streams and rivers from suiá-mi?ú basin, mt, and how the streams are classifying according to the species composition. were sample 12 streams and rivers, in three periods of the year. were collected 1,356 individuals, distributed in seven families, 31 genus and 42 species and/or morphospecies. the most abundant locals were semi-lentics and with few shaded suggering that most light in the system offer, allochthonous material and autochthonous material like food resources. the greater estimates richness was found in lotic places, emphasizing that the ephemeroptera presents greater richness in these places, once water current is essential for organic matter transporting. so much in the grouping analysis (twinspam) as in the ordination (dca) was observed the separation of lotic and semi-lentic environments as for species composition. it had a gradient in the composition similarity of lotic and small streams for lotic and big stream and for last, semi-lentics. the results of this study show that the physic structure of aquatic environments affect species composition. in that way, retreat of riparian vegetation and streams dam up can take significant losses in the diversity.
Alejandro de Afrodisia y el problema de la instrumentalidad de la lógica.Notas sobre in A. Pr. 2, 22-33.
Estudios de Filosofía , 2009,
Abstract: ricardo salles' contribution is focused on alexander's peripatetic interpretation against the stoic thesis that logic is not an "instrument", but a "part" of philosophy. according to alexander, if logic were part of philosophy, as the stoics maintain, philosophy could not occupy the highest place in the hierarchy of knowledge. salles takes this to be paradoxical since both the stoics and the peripatetics consider that philosophy is, due to its object, the highest discipline. according to salles, alexander's acute criticism is not penetrating enough to make obvious a real inconsistency in stoicism. in his view, alexander's main weakness is that the reasoning on which such criticism is based depends upon some aristotelian assumptions that the stoics reject.
Ideas y Valores , 2010,
Abstract: the paper addresses two questions regarding the interpretation of akrasia among the stoics, offered by marcelo boeri in his book appearance and reality in greek thought: on the one hand, can chrysippus's monistic adaptation of the platonic model of the divided soul set forth in book iv of the republic provide a philosophically satisfactory explanation of the classical phenomenon of akrasia? on the other hand, is this phenomenon the true explanandum of this adaptation? the paper shows that the answer to both these questions could be negative and thus different from the answer provided by boeri in his book. the argument is based on the analysis of plutarch vm 446f-447b and on the analysis of the classical problem of akrasia.
Aristóteles, Crisipo y el problema de la generación de los cuerpos homogéneos complejos
Salles, Ricardo;
Signos filosóficos , 2008,
Abstract: the main purpose of this paper is to examine the reaction of aristotle and the stoic chrysippus to a metaphysical problem that has been overlooked in recent studies of ancient physics. the problem concerns the generation of the so-called homogeneous complex bodies. if, as these authors maintain, such bodies are generated by a mixture of more basic bodies, and if they are destroyed when this mixture is dissolved and the original ingredients separate themselves from each other, then, a dilema seems to arise: during the existence of the complex body (i) either the simple bodies persist as such within the complex body, in which case it appears that this latter could not be homogeneous, (ii) or the simple bodies are destroyed when the complex body is generated, in which case an explanation is needed of how the former obtain again when the latter is dissolved. at the end, i also offer an analysis of how chrysippus gives support to the thesis itself that complex homogeneous bodies are the result of a mixture of simpler bodies. the whole is preceded by an account of how his theory of mixture fits with his general theory of the generation of natural bodies.
Paul Ricouer e a hermenêutica de si no espelho das palavras
Utopìa y Praxis Latinoamericana , 2009,
Abstract: this article discusses the construction of personal identity in the context of pluralism that characterizes the globalized world. in this process, cultural differences appear at the same time as both richness and threat. this discussion presupposes the importance of the hermeneutics of texts that gave birth to traditions of self-identity construction, taken as narrative identity. this is the particular case of christian identity whose discussion, at least by theology and religious sciences, requires considering philosophy as a privileged interlocutor; in the particular case of this study, paul ricoeur?s hermeneutic philosophy.
Bases formales y semánticas de la Teoría Estoica de los Condicionales
Revista latinoamericana de filosof?-a , 2010,
Abstract: according to an interpretation of stoic logic advocated by some of its most recent scholars, stoic logic already contains a distinction that became important in contemporary modern logic, namely, one between propositions tautologically necessary, i.e. necessary in virtue of being true under any possible interpretation of its variables (e.g. if a, a) and propositions that are not tautologous but still necessary in virtue of their meaning (e.g. if peter is a bachelor, peter is not married). the present paper does not question the presence of this distinction in stoic logic. its aim is just to show that the textual evidence normally aduced in its favour is questionable and we need to appeal to other sources to find clear evidence for it.
Platonism and Akrasia in Chrysippus. The Interpretation of Marcelo Boeri
Ricardo Salles
Ideas y Valores , 2010,
Abstract: The paper addresses two questions regarding the interpretation of akrasia among the Stoics, offered by Marcelo Boeri in his book Appearance and Reality in Greek Thought: On the one hand, can Chrysippus’s monistic adaptation of the Platonic model of the divided soul set forth in Book iv of the Republic provide a philosophically satisfactory explanation of the classical phenomenon of akrasia? On the other hand, is this phenomenon the true explanandum of this adaptation? The paper shows that the answer to both these questions could be negative and thus different from the answer provided by Boeri in his book. The argument is based on the analysis of Plutarch vm 446f-447b and on the analysis of the classical problem of akrasia.
Abolition in Brazil: slave resistance, intellectuals and politics (1870-1888)
Salles, Ricardo
Revista de Indias , 2011,
Abstract: The Abolition of Slavery in Brazil raises the following questions: what was the social character of abolitionism? What historical meaning did it have? Was it a revolution or simply a step in the transition towards capitalism in the country? What interests did the abolition movement defend? What social groups were the movement’s protagonists? What role did the slave play in the process? What did the abolitionist intellectuals defend and whom did they represent? These are the questions that lead this article to reflect on the relationship between where the intellectuals stood and the possibilities and limitations of joining forces, or the construction of a slave and free population as a national class at the end of the period of slavery in Brazil. La abolición de la esclavitud en Brasil plantea las siguientes preguntas históricas: Cuál es el carácter social del abolicionismo? Cuál es su sentido histórico? Fue una revolución o apenas un episodio en la transición al capitalismo? Qué intereses defendía el movimiento abolicionista? Qué grupos sociales protagonizan este movimiento? Cuál es el papel de los esclavos en el proceso? O, qué defendían y qué representaban los intelectuales abolicionistas? Son estas cuestiones las que guían el presente artículo, en el sentido de pensar la relación entre el lugar de los intelectuales abolicionistas y las posibilidades y los límites de la formación, o el acontecimiento , de la población esclava y liberta en cuanto clase nacional en el periodo del final de la esclavitud en Brasil. [pt] A Aboli o da Escravid o no Brasil coloca as seguintes quest es históricas: qual o caráter social do abolicionismo? Qual seu sentido histórico? Foi uma revolu o ou apenas um lance na transi o para o capitalismo no país? Que interesses defendia o movimento abolicionista? Que grupos sociais protagonizaram o movimento? Qual o papel dos escravos no processo? O que defendiam e quem representavam os intelectuais abolicionistas? S o estas indaga es que guiam esse artigo no sentido de pensar a rela o entre o lugar dos intelectuais abolicionistas e as possibilidades e os limites de forma o, ou o acontecimento da popula o escrava e liberta enquanto uma classe nacional no período final da escravid o no Brasil.
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