A new model for early diagenetic processes has been developed through a new formula explicitly accounting for microbial population dynamics. Following a mechanistic approach based on enzymatic reactions, a new model has been proposed for oxic mineralisation and denitrification. It incorporates the dynamics of bacterial metabolism. We find a general formula for inhibition processes of which some other mathematical expressions are particular cases. Moreover a fast numerical algorithm has been developed. It allows us to perform simulations of different diagenetic models (...) in non-steady states. We use this algorithm to compare our model to a classical one (Soetaert et al., 1996). Dynamical evolutions of a perturbation of particulate organic carbon (POC) input are studied for both models. (shrink)

This article discusses two complementary themes that play an important role in contemporary South African political philosophy: (1) the racist tradition in Western philosophy; and (2) the role of ubuntu in regaining an authentic African identity, which was systematically suppressed during the colonial past and apartheid. These are also leading themes in Mogobe Ramose’s African Philosophy Through Ubuntu. The first part concentrates on John Locke. It discusses the thesis that the reprehensible racism of many founders of liberal political philosophy has (...) lethally infected liberal theory. This view neglects the distinction between genesis and justification. Political liberalism has since cleansed itself of the prejudices of its spiritual ancestors. Liberal human rights exclude racism as a matter of principle. The second part discusses the claim that the ubuntu philosophy provides a better basis for a constitution in a modern society than political liberalism. A major problem is that ubuntu is an essentially contested concept. Some philosophers consider ubuntu to be a moribund notion (Matolino); others see it as a vital concept par excellence. In the latter case, it is elaborated from sundry incompatible political views, ranging from African nationalism (Ramose) via humanist communitarianism (Metz) to liberalism (Mboti). Conclusion: as an essentially contested ideological concept, ubuntu should not be a decisive constitutional standard for the application of state force. In contrast, the constitutional model of political liberalism provides a reasonable alternative, as it is designed precisely to solve the problem of social plurality and ideological contest. (shrink)

Most whistleblowers talk as if they never had a choice about whether to blow the whistle. This doesn't mean they acted suddenly, or impulsively, only that they believe they could not have done otherwise. Trying to make sense of this near universal answer to the question "Why did you do it?" the essay draws on narrative theory. Narrative theory distinguishes between actant and sender—that is, between actor and his or her values. This distinction helps to explain what it means to (...) face a difficult choice over something about which one feels one never had a choice. (shrink)

Alchemy is central to Jung's hypothesis of the collective unconscious. In this volume he begins with an outline of the process and aims of psychotherapy, and then moves on to work out the analogies between alchemy, Christian dogma and symbolism and his own understanding of the analytic process. Introducing the basic concepts of alchemy, Jung reminds us of the dual nature of alchemy, comprising both the chemical process and a parallel mystical component. He also discusses the seemingly deliberate mystification of (...) the alchemists. Finally, in using the alchemical process as providing insights into individuation, Jung emphasises the importance of alchemy in relating to us the transcendent nature of the psyche. (shrink)

A widely accepted view in epistemology is that we do not have direct control over our beliefs. And we surely do not have as much control over our beliefs as we have over simple actions. For instance, you can, if offered $500, immediately throw your steak in the trash, but a meat-eater cannot, at will, start believing that eating animals is wrong to secure a $500 reward. Yet, even though we have more control over our behavior than we have over (...) our beliefs, some of our behavior, especially moral behavior, is heavily influenced by our beliefs. Meat-eating is one example. So, if we do not have direct control over our beliefs and our beliefs influence our moral behavior, it’s no wonder meat-eaters aren’t immediately boycotting Burger King and lining up for the Beyond Burger after hearing about the mistreatment of farmed animals. So, how, or can we, inspire meat-eaters to change their beliefs regarding the moral significance of meat-eating and, consequently, their animal-eating behavior? I propose an answer to this difficult question. (shrink)

La réception tardive de l'oeuvre de Ernst Troeltsch en France nous a privés d'une analyse du christianisme originale et féconde. Elle nuance et enrichit ce que nous savons, au travers de la réflexion wébérienne notamment, des relations de la religion chrétienne à la modernité. Contre les interprétations usuelles qui datent l'émergence de cette dernière de la Renaissance et de la Réforme, Troeltsch insiste sur la centralité des Lumières comme marquant la fin de la civilisation ecclésiastique ; c'es l'évanouissement de la (...) référence structurante à l'ordre divin qui inau­gure selon lui l'entrée dans le monde moderne. Sur la base de ce constat, il s'agit pour Troeltsch de trouver une définition du christianisme qui soit en adéquation avec les conditions de l'existence moderne. Dans son ouvrage datant de 1912, « Les doctrines sociales des Églises et groupes chrétiens », il examine les types « Église », « secte » et « mystique » pré­sents depuis les origines évangéliques, circonscrivant trois modes socio­logiques et éthiques qu'il confronte à la modernité. Aucun n'est seul adéquat. Pour durer, le christianisme devra, selon Troeltsch, renoncer à la réalisation d'un programme éthique d'essence religieuse au sein du monde et accepter le cantonnement de la foi dans l'intimité des cons­ciences, tout en s'articulant à des réalités socio-culturelles à l'échelle de tous dont les formes et les transformations internes sont toujours à repenser.The delayed reception of the work of Ernst Troeltsch in France deprived us of an analysis of an original and fertile Christianity. It nuances and enriches what we know, especially through a Weberian reflection, about the relations of the Christian religion and modernity. Against the customary interpretations that date the emergence of the latter from the Renaissance and the Reformation, Troeltsch insists on the centrality of the Enlightenment as marking the end of an ecclesiastical civilization. It is the disappearance of the structuring reference to the divine order that inaugurated, according to him, the entrance to the modern world. On the basis of this observation, Troeltsch is interested in finding a definition of Christianity that would be in harmony with the conditions of modern existence. In his work dating from 1912, "The social doctrines of the Churches and Christian groups ", he examines the categories "Church", "sect", and "mystic" that were present evangelical times, circumscribing three sociological and ethical modes, which he confronts with modernity. No single one is adequate. In order to endure, Christian­ity should, according to Troeltsch, renounce the attempt to set up an ethical program of a religious essence in the heart of the world and accept the establishment of a faith in the intimacy of consciences, all the while adapting its« to socia-cultural realities applicable to everyone, of which the forms and internal transformations are always to be re-thought. (shrink)

In this article I connect two concepts that played central roles in the School of Meinong: the notion of impossible objects and that of Gestalt. Ehrenfels claims that Widerspruch or incompatibility would be a temporal Gestalt quality, specifically the trying and failing to build an intuitive presentation. Where, when, and how does this process break down exactly? Meinong’s Graz students developed a more detailed production theory for the presentation of Gestalten (Vorstellungsproduktion) which can help to determine how the failure to (...) produce one Gestalt can generate another, which moreover is typical of impossible objects. There are three contributions to Meinong’s 1904 volume Untersuchungen zur Gegenstandstheorie und Psychologie, the ones by Mally, Benussi, and Ameseder, that provide helpful analyses to clarify the incompatibility Gestalt. These suggest three options to refine the analysis of the Gestalt of impossible objects. The conclusion is that the failure of the Vorstellungsproduktion itself is not enough, the incompatibility relation between the foundations must also play a role. (shrink)

It is hard for most people to appreciate how little they know of themselves in regards to basic aspects of living, or how these simple and apparently uninteresting aspects of ourselves can have an influence on the higher aspects of human life and culture. As Alain Berthoz, in his groundbreaking book, The Brain's Sense of Movement, points out, 'Plato forgot the body.' It is a huge omission that continues into today and affects thinking in all our attempts to understand such (...) aspects of ourselves as perception, cognition, emotion, and that major topic of this journal, consciousness. (shrink)

Why did the scientific revolution take place in the West and not in China or the Islamic world? How did humanity's progress in science and technology, which had been moving along at a relatively steady pace for tens of thousands of years, end up taking such an unprecedented leap? Subjecting the history of thought and technology to a novel interpretation based on the relationship between theory and practice, Ahmet Selami Çalışkan argues that the industrial revolution and modern science-and the scientific (...) revolution that preceded both-did not alone suffice to sort out the philosophical problems of their day or to produce the institutions of the modern age. Both required a new sort of human: Homo economicus faber. Tracing the historical emergence of this figure and its persistence in our own age, this book offers an innovative and holistic assessment of the economic, cultural, and political effects of centuries of interaction between East and West and their repercussions in our world today. (shrink)

Fractal time fluctuations of the spectral “1/f” form are universal in natural self-organizing systems. Neurobiology is uniquely infused with fractal fluctuations in the form of statistically self-similar clusters or bursts on all levels of description from molecular events such as protein chain fluctuations, ion channel currents and synaptic processes to the behaviors of neural ensembles or the collective behavior of Internet users. It is the thesis of this essay that the brain self-organizes via a vertical collation of these spontaneous events (...) in order to perceive the world and generate adaptive behaviors. REM sleep, which coalesces from self-similar clusters of burst-within-burst behavior during ontogeny, is essential to cognitive-emotional function, and has recurrent fractal organization. Empirical fMRI observations further support the association of fractal fluctuations in the temporal lobes, brainstem and cerebellum during the expression of emotional memory, spontaneous fluctuations of thought and meditative practice. Cognitive-emotional integration arises as amygdaloid-brainstem-cerebellar systems harmonize the vertical “1/f” symphony of coupled isochronous cortical oscillations in the pursuit of mindfulness. (shrink)