The influence of sediment oxygen heterogeneity, due to bioturbation, on diffusive oxygen flux was investigated. Laboratory experiments were carried out with 3 macrobenthic species presenting different bioturbation behaviour patterns: the polychaetes Nereis diversicolor and Nereis virens, both constructing ventilated galleries in the sediment column, and the gastropod Cyclope neritea, a burrowing species which does not build any structure. Oxygen two-dimensional distribution in sediments was quantified by means of the optical planar optode technique. Diffusive oxygen fluxes and a variability index were (...) calculated on the captured oxygen images. All species increased sediment oxygen heterogeneity compared to the controls without animals. This was particularly noticeable with the polychaetes because of the construction of more or less complex burrows. Integrated diffusive oxygen flux increased with oxygen heterogeneity due to the production of interface available for solute exchanges between overlying water and sediments. This work shows that sediment heterogeneity is an important feature of the control of oxygen exchanges at the sediment–water interface. (shrink)

Flaminia Pischedda Cet article s’intéresse à l’un des textes fondamentaux de la tradition du Classique des changements (Yijing 易經) : le Xici (Commentaire sur les sentences attachées), également connu sous le titre Grand commentaire (Dazhuan 大傳) au Classique des changements. Nous procédons à une analyse formelle du texte, afin d’explorer ses motifs argumentatifs et philosophiques. Sans ignorer la nature composite de ce texte, qui est faite de plusieurs couches superposées, notre analyse sera conduite autant dans le détail du texte (...) que dans ses articulations globales. Nous entendons éclairer la manière dont la structure du texte reflète son contenu. Ainsi, nous montrerons comment un ensemble d’éléments structurels et lexicaux font du Xici un texte élaborant et défendant ses propres arguments, sans qu'il lui soit besoin de recourir à des ressources extra-textuelles. (shrink)

In this paper I propose a discussion of R.G. Collingwood's cultural criticism, as a critique of the modern world, referring, beyond social and political institutions, to definite aspects of everyday existence, such as trends in aesthetics and technology, and to the form of rationality that disciplines the general attitudes of men. For this type of criticism, modernity becomes problematic as a 'form of life'. I therefore intend to provide a commentary of certain passages of Collingwood's writings, in order to reconstruct (...) the historical narrative where the genesis and the development of the modern world is represented as a process full of tensions and contradictions, thus allowingme to stress the coexistence of different patterns in cultural criticism. At the same time, I propose to discuss somemethodological and category problems arising from them: principally the explanatory problem about the specific causal relationships that take into account the traits of modern civilization which are the object of criticism, and the normative problem concerning the criteria applied in this criticism. (shrink)

Keine ausführliche Beschreibung für "Die Natur und Entstehung der Träume" verfügbar.

-- ch. 2. Uchenie o prirode cheloveka v kontekste kriticheskoĭ filosofii -- ch. 3. Kriticheskai︠a︡ transt︠s︡endentalʹnai︠a︡ filosofii︠a︡ kak teorii︠a︡ poznanii︠a︡ i deĭstvii︠a︡.

This book explains why Tocqueville saw the central task of modern statesmanship as combating 'individualism,' a type of civic apathy that he thought capable of robbing modern citizens of human virtue and issuing in a historically unprecedented form of despotism. It looks in depth at the mechanisms he proposed for avoiding the perils and securing the promise of democracy in his own day, and discusses how Tocqueville's insights might be applied in our own time.

Social change; Sufism; doctrines; religious aspects.

This volume includes fifteen chapters, case studies and broader reflections, on the notion of ‘radical enlightenment,’ separated into three main sections entitled, respectively, “The Big Picture,” “Origins and Fate of the Radical Enlightenment, ca. 1660–1720,” and “The Radical Enlightenment in Europe and the New World after ca. 1720.” It is presented as “the first stand-alone collection of studies in English on the Radical Enlightenment.” It is worth mentioning, however, that two very similar volumes already exist in French and German. Like (...) its French and German... (shrink)

As past president of both the History of Science Society and the American Society of Church History, Ronald L. Numbers is uniquely qualified to assess the historical relations between science and Christianity. In this collection of his most recent essays, he moves beyond the clichés of conflict and harmony to explore the tangled web of historical interactions involving scientific and religious beliefs. In his lead essay he offers an unprecedented overview of the history of science and Christianity from the perspective (...) of the ordinary people who filled the pews of churchesor loitered around outside. Unlike the elite scientists and theologians on whom most historians have focused, these vulgar Christians cared little about the discoveries of Copernicus, Newton, and Einstein. Instead, they worried about the causes of the diseases and disasters that directly affected their lives and about scientists preposterous attempts to trace human ancestry back to apes. Far from dismissing opinion-makers in the pulpit, Numbers closely looks at two the most influential Protestant theologians in nineteenth-century America: Charles Hodge and William Henry Green. Hodge, after decades of struggling to harmonize Gods two revelationsin nature and in the Biblein the end famously described Darwinism as atheism. Green, on the basis of his careful biblical studies, concluded that Ussher's chronology was unreliable, thus opening the door for Christian anthropologists to accommodate the subsequent discovery of human antiquity. In Science without God Numbers traces the millennia-long history of so-called methodological naturalism, the commitment to explaining the natural world without appeals to the supernatural. By the early nineteenth century this practice was becoming the defining characteristic of science; in the late twentieth century it became the central point of attack in the audacious attempt of intelligent designers to redefine science. Numbers ends his reassessment by arguing that although science has markedly changed the world we live in, it has contributed less to secularizing it than many have claimed. Taken together, these accessible and authoritative essays form a perfect introduction to Christian attitudes towards science since the 17th century. (shrink)