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Author: Mathieu Chatelain
Publisher:
ISBN:
Category :
Languages : fr
Pages : 184
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Book Description
La diagénèse précoce résulte des transferts de matières à travers l'interface eau-sédiment. Ce processus est contraint par la disponibilité en oxygène, par l'environnement physique de l'interface eau-sédiment (porosité et perméabilité du sédiment) et par le forçage hydrodynamique. Lorsque ce dernier est instationnaire, un couplage fort peut s'établir avec la dynamique biochimique. Dans les sédiments non-perméables, les échanges à l'interface se produisent via diffusion. Un modèle de diffusion-réaction, décrivant la dynamique des transferts diffusifs d'oxygène lorsque la colonne d'eau est soumise à un écoulement oscillant, montre une stimulation de l'oxygénation du sédiment sous des écoulements oscillants énergétiques. La compétition entre le temps de diffusion à travers la couche limite diffusive, le temps accordé à cette diffusion pendant une période de l'onde, et le temps de consommation de l'oxygène dans le sédiment, régule la dynamique non-linéaire des flux diffusifs à l'interface eau-sédiment. Dans les sédiments perméables, les processus advectifs jouent un rôle prédominant dans les échanges à travers l'interface. Ainsi, les réservoirs de sels nutritifs peuvent être rendus disponibles pour la production primaire pélagique lors d'épisodes de vagues énergétiques (pompage subtidal). Un suivi hebdomadaire des concentrations en sels nutritifs de l'eau pélagique et de l'eau interstitielle a été réalisé en deux stations de la baie de Banyuls. De plus, une exploration spatiale de la perméabilité, de la granulométrie et des stocks en sels nutritifs a été menée en baie de Banyuls et dans le golfe du Lion. Un bilan de la contribution des apports par pompage subtidal est proposé.
Author: Mathieu Chatelain
Publisher:
ISBN:
Category :
Languages : fr
Pages : 184
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Book Description
La diagénèse précoce résulte des transferts de matières à travers l'interface eau-sédiment. Ce processus est contraint par la disponibilité en oxygène, par l'environnement physique de l'interface eau-sédiment (porosité et perméabilité du sédiment) et par le forçage hydrodynamique. Lorsque ce dernier est instationnaire, un couplage fort peut s'établir avec la dynamique biochimique. Dans les sédiments non-perméables, les échanges à l'interface se produisent via diffusion. Un modèle de diffusion-réaction, décrivant la dynamique des transferts diffusifs d'oxygène lorsque la colonne d'eau est soumise à un écoulement oscillant, montre une stimulation de l'oxygénation du sédiment sous des écoulements oscillants énergétiques. La compétition entre le temps de diffusion à travers la couche limite diffusive, le temps accordé à cette diffusion pendant une période de l'onde, et le temps de consommation de l'oxygène dans le sédiment, régule la dynamique non-linéaire des flux diffusifs à l'interface eau-sédiment. Dans les sédiments perméables, les processus advectifs jouent un rôle prédominant dans les échanges à travers l'interface. Ainsi, les réservoirs de sels nutritifs peuvent être rendus disponibles pour la production primaire pélagique lors d'épisodes de vagues énergétiques (pompage subtidal). Un suivi hebdomadaire des concentrations en sels nutritifs de l'eau pélagique et de l'eau interstitielle a été réalisé en deux stations de la baie de Banyuls. De plus, une exploration spatiale de la perméabilité, de la granulométrie et des stocks en sels nutritifs a été menée en baie de Banyuls et dans le golfe du Lion. Un bilan de la contribution des apports par pompage subtidal est proposé.
Author: T. Henry Blackburn
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 488
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Book Description
Nitrogen discharge to the coastal environment has been increasing, posing the threat of accelerated eutrofication. Considerable research has been conducted in recent years to examine the impact of the nitrogen loading in coastal ecosystems. Based on proceedings from a SCOPE symposium held at the University of Aarhus in July of 1985, this volume covers a variety of up-to-date developments in research on nitrogen cycling in coastal marine environments. Topics include the role of nitrogen in algal productivity, regeneration of nutrients in the water column and the sediments, and the flow of nitrogen in coastal ecosystems.
Author: International Atomic Energy Agency
Publisher: International Atomic Energy Agency
ISBN: 9789201063205
Category : Technology & Engineering
Languages : en
Pages : 72
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Book Description
This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.
Author: Alfred Frank Bartsch
Publisher:
ISBN:
Category : Eutrophication
Languages : en
Pages : 60
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Book Description
Author: Laurence Kahn
Publisher: Taylor & Francis
ISBN: 1000630331
Category : Psychology
Languages : en
Pages : 157
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Book Description
What Nazism Did to Psychoanalysis explores the impact Nazism had on the evolution of psychoanalysis and tackles the enigma of the transformation of individual hate into mass psychosis and of the autocratic creation of a neo-reality. Addressing the effects of the Holocaust on the psychoanalytic world, this book does not focus on the suffering of the survivors but the analysis of the concrete mechanisms of destruction that affected language and thought, their impact on the practice of psychoanalysis and the defences that psychoanalysts tried to find against the linguistic, legal and symbolic chaos that struck the foundations of reality. Laurence Kahn discusses the struggle against the appropriation, by the Nazi language, of key terms such as demonic nature, drives, ideals and, above all, the Selbsterhaltungstrieb (the self-preservation drive), which became, with Hitler, the axis of the living space policy, the "Lebensraum". Covering key topics such as trauma, transgenerational issues, silence and secrecy and the depredation of culture, this is an essential work for psychoanalysts and anyone wishing to understand how strongly the development of psychoanalysis was affected by Nazism.
Author: Lawrence J. Brown
Publisher: Routledge
ISBN: 0429835817
Category : Psychology
Languages : en
Pages : 360
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Book Description
In this book, Lawrence J. Brown offers a contemporary perspective on how the mind transforms, and gives meaning to, emotional experience that arises unconsciously in the here-and-now of the clinical hour. Brown surveys the developments in theory and practice that follow from Freud’s original observations and traces this evolution from its conception to contemporary analytic field theory. Brown emphasizes that these unconscious transformational processes occur spontaneously, in the blink of an eye, through the "unconscious work" in which the analyst and patient are engaged. Though unconscious, these processes are accessible and the analyst must train himself to become aware of the subtle ways he is affected by the patient in the clinical moment. By paying attention to one’s reveries, countertransference manifestations and even supposed "wild" or extraneous thoughts, the analyst is able to obtain a glimpse of how his unconscious is transforming the ambient emotions of the session in order to formulate an interpretation. Brown casts a wide theoretical net in his exploration of these transformational processes and builds on the contributions of Freud, Theodor Reik, Bion, Ogden, the Barangers, Cassorla, Civitarese and Ferro. Bion’s theories of alpha function, transformations, dreaming and his clinical emphasis on the present moment are foundational to this book. Brown’s writing is clear and aims to describe the various theoretical ideas as plainly as possible. Detailed clinical material is given in most chapters to illustrate the theoretical perspectives. Brown applies this theory of transformational processes to a variety of topics, including the analyst’s receptivity, countertransference as transformation, the analytic setting, the paintings of J.M.W. Turner, "autistic transformations" and other clinical situations in the analysis of children and adults. Transformational Processes in Clinical Psychoanalysis will be of great interest to all psychoanalysts and psychoanalytic psychotherapists.
Author: Joseph R. Gusfield
Publisher: HarperCollins Publishers
ISBN:
Category : Social Science
Languages : en
Pages : 162
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Book Description
Author: Fred Busch
Publisher: Routledge
ISBN: 0429649185
Category : Psychology
Languages : en
Pages : 191
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Book Description
While the use of the analyst’s own reveries in work with patients has increased in recent times, there has been little critical inquiry into its value, and the problems it may lead to. The Analyst's Reveries finds increasing veneration for the analyst’s use of their reveries, while revealing important differences amongst post-Bionians in how reverie is defined and used clinically. Fred Busch ponders if it has been fully recognized that some post-Bionions suggest a new, radical paradigm for what is curative in psychoanalysis. After searching for the roots of the analyst’s use of reverie in Bion’s work and questioning whether in this regard Bion was a Bionian, Busch carefully examines the work of some post-Bionians and finds both convincing ways to think about the usefulness and limitations of the analyst’s use of reverie. He explores questions including: From what part of the mind does a reverie emerge? How does its provenance inform its transformative possibilities? Do we over-generalize in conceptualizing what is unrepresented, with the corresponding problem of false positives? Do dreams equal understanding and what about the generalizability of the co-created reverie? Busch concludes that it is primarily through the analyst’s own associations that the reverie’s potential is revealed, which further helps the analyst distinguish it from many other possibilities, including the analyst’s countertransference. He believes in the importance of converting reveries into verbal interpretations, a controversial point amongst post-Bionians. Busch ends with the difficult task of classifying the analyst’s reveries based on their degree of representation. The Analyst's Reveries will be of great interest to psychoanalysts and psychoanalytic psychotherapists.
Author: Antonino Ferro
Publisher: Psychology Press
ISBN: 9781583912218
Category : Medical personnel and patient
Languages : en
Pages : 180
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Book Description
Complements and develops Antonino Ferro's new model of the relationship between patient and analyst, by concentrating on adults.
Author: OECD
Publisher: OECD Publishing
ISBN: 9264194223
Category :
Languages : en
Pages : 326
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Book Description
The nineteenth edition of the Agricultural Outlook, and the ninth prepared jointly with the Food and Agriculture Organization of the United Nations (FAO), provides projections to 2022 for the major agricultural commodities and biofuels as well as for fish and seafood.
