This paper addresses the existence of Hopf bifurcations in a directed acyclic network of neurons, each of them being modeled by a Hindmarsh–Rose neuronal model. The bifurcation parameter is the small parameter corresponding to the ratio of time scales between the fast and the slow dynamics. We first prove that, under certain hypotheses, the single uncoupled neuron can undergo a Hopf bifurcation. Hopf bifurcation occurrences in a directed acyclic network of HR neurons are then discussed. Numerical simulations are carried out (...) to observe these bifurcations and to illustrate the theoretical results. (shrink)

Aproximación al pensamiento de Rodolfo Kusch -- Canto e identidad en el Martín Fierro según Carlos Astrada y Rodolfo Kusch -- Donde el barro se subleva -- La rehabilitación del saber seminal como camino hacia una mística popular -- Kusch y el impulso social de nuestra época -- La barbarización de la civilización, una grieta de antaño -- ¿De dónde pensarnos?

Theravada Buddhist teachings and philosophies, and the cause and effect of human deeds.

"Éltem--és ebbe más is belehalt már."--Egy élet szenvedélye.--Vád és valóság.--József Attila társadalmi helyzete és kritikai fogadtatása.--Lukács György szellemi Odüsszeiája.--A marxista esztétika kérdőjelei.--Életpraxis és elvontság.--A manipulált manipuláció. -- Értékmonopólium vagy értékhierarchia.--Normatív történelem vagy történelmi normák.--Tudományos igényű tárgyilagosság.--A történelem dimenziól és az emberi dimenziók.--A mai kulturális politika elveinek összefoglalása.--Az egydimenziójú esztétika.--A fantasztikum lehetőségei és a szatíra.--Nem középiskolás fokon.--Párbeszéd Assisiban. 38.00Ft.

In this article I am making what is, as far as I know, the first systematic analysis of Justin books 7, 8 and 9. The method is that which I employed in analysing the sources of Diodorus 16 in CQ 31 , 79ff. and 32 , 137ff. Previous scholars had looked for similarities between the fragments of ancient historians and details in the text of Diodorus, and they had taken any such similarity as proof of a particular source being followed. (...) They had carried their method to extremes: A. Momigliano, for instance, had concluded that Diodorus changed his source 12 times within 23 chapters, and R. Laqueur 18 times within 4 chapters in book 16. My system was to define separable Groups of narrative on the basis of fullness, accuracy, military and political detail, and attitude to the general theme, and to see how far any one Group could be attributed to an ancient author. I begin, therefore, with separable Groups of narrative. (shrink)

_Purpose._ The purpose of the research is to outline the strategies of desacralization of writers by means of merch, to determine the positive and negative aspects of the search for new meanings in the reproduction of cult figures. _Theoretical basis._ The article examines merch as a tool that encourages people to change sacred meanings and ideas about writers as bearers of the sacred for Ukrainians. The source base of the study is the works devoted to the problems of the sacred (...) in philosophical thought, as well as the process of desacralization in art and literature. The peculiarities of the destruction of tendencies regarding the notions in the perception of writers as idols of the nation, the formation and emergence of new meanings regarding sacred figures are highlighted and described. The relevance of this study is due to active searches in business, propaganda, agitation for the use of literary practice, transformation and new contexts of literary idols. _Originality._ Until now, the change in the processes of sacralization and desacralization of writers by means of merch has not been considered as a reversal of worldview in culture, vectors of changes in the dominants of spirituality in the world picture. It turned out that the metacategory of the sacred has been studied by many scholars, both foreign and domestic, in recent years. The problems of the sacred are in the centre of attention of sociologists, philosophers, literary critics, and culturologists, but merch as a basis for the desacralization of man was not considered in publications in the field of mass communication theory. Scientists considered the worldview vectors of the sacred and desacralization as processes that are inherent not only in postmodernity, but also those that accompanied Ukrainian culture during previous periods. It is determined that the most noticeable manifestations of desacralization are the reproduction of the figure of Kobzar, moreover, in quite unusual and even provocative images of him. However, the majority of Ukrainians positively perceive the updated images of the prophets of the Ukrainian nation and talk about the permanence of their worldview, despite the change and reinterpretation of many years of later development. _Conclusions._ Conscious desacralization of literary images is gradually gaining momentum. We observe a tendency to positive perception of merch with the figures of T. Shevchenko, I. Franko, H. Skovoroda, Lesia Ukrainka in a new interpretation: during the war, on the barricades – wherever the struggle for Ukrainian statehood is taking place. From the results of the survey it becomes clear that stereotypical perceptions of writers need to be changed, but only if it is an organic fusion with value imperatives, only emphasizes and affirms the spiritual greatness of Man and serves the growth of Ukrainian society and every Ukrainian. (shrink)

The author recounts major personal and moral tensions that arose during an 11-month period living in Ghana and shares how she has since learned to reconcile those tensions.

Con motivo del bicentenario del nacimiento de Darwin, esta obra realiza un recorrido por la Teoría de la Evolución a partir del patrimonio bibliográfico y científico de la Universidad de Sevilla. Sus autores muestran la vigencia actual de esta teoría y el papel de Antonio Machado y Núñez, destacado darwinista de la Sevilla de finales del XIX.