Roland Reichenbach / Norbert Ricken / Hans-Christoph Koller (Hrsg.): Erkenntnispolitik und die Konstruktion pädagogischer Wirklichkeiten (Schriftenreihe der Kommission Bildungs- und Erziehungsphilosophie in der Deutschen Gesellschaft für Erziehungswissenschaft). Paderborn: Schöningh 2011 [Rezension]

Rezension von: Roland Reichenbach / Norbert Ricken / Hans-Christoph Koller (Hrsg.): Erkenntnispolitik und die Konstruktion pädagogischer Wirklichkeiten (Schriftenreihe der Kommission Bildungs- und Erziehungsphilosophie in der Deutschen Gesellschaft für Erziehungswissenschaft). Paderborn: Schöningh 2011 (179 S.; ISBN 978-3-5067-6984-8)

Hans-Christoph Koller: Bildung anders denken, Einführung in die Theorie transformatorischer Bildungsprozesse. Stuttgart: Kohlhammer 2012 [Rezension]

Rezension von: Hans-Christoph Koller: Bildung anders denken, Einführung in die Theorie transformatorischer Bildungsprozesse, Stuttgart: Kohlhammer 2012 (194 S.; ISBN 978-3-17-021980-9)

Hans Siebert - zur erziehungsgeschichtlichen Spur eines emigrierten politischen Pädagogen

Hans Siebert war als exponierter SED-Funktionär der wirkungsstärkste Vertreter stalinistischer Erziehungsauffassungen in der SBZ und frühen DDR. Die nachstehende biographische Recherche erhellt insbesondere die Entstehungsgeschichte seiner Auffassungen im englischen Exil. Dabei wird den bislang kaum beachteten Erziehungs- und Schulungsunternehmungen der KPD nachgegangen. Es wird deutlich, daß Siebert, der besonders eng an sowjetische Vorbilder gebunden war, nur bis in die fünfziger Jahre tatsächlich Einfluß auf die Bildungspolitik hatte und danach in eine Außenseiterposition geriet. (DIPF/Orig.)

Interview with Hans G. Hornung

An interview in two sessions, June and July 2014, with Hans Georg Hornung, Clarence L. Johnson Professor of Aeronautics, emeritus, in the Division of Engineering and Applied Science. Dr. Hornung describes the origins of the German Templer Colony in Palestine and his upbringing there before and during World War II. Family moves to Templer settlement, Melbourne, Australia, 1948. He attends technical college; University of Melbourne; master’s in engineering, 1962. Researcher, Aeronautical Research Laboratories, Melbourne; PhD, Imperial College, London, 1965. He recalls his academic career at the Australian National University, Canberra (1967-1980); his interest in hypersonics; building free-piston shock tunnel with Raymond Stalker. Sabbatical in Darmstadt with Ernst Becker. Seven years as director of fluid-mechanics institute of the DLR [Deutsches Zentrum für Luft- und Raumfahrt], in Göttingen. Comes to Caltech in 1987 to succeed Hans W. Liepmann as director of GALCIT [Graduate Aerospace Laboratories, California Institute of Technology]. Recalls his various aero colleagues, his work with Rocketdyne on Caltech’s T5 (successor to Canberra’s T3 shock tunnel) and Ludwieg tube, collaboration with JPL on space program, and work with graduate students Simon Sanderson and Eric Cummings. Discusses his involvement in various scientific societies and his current activities and continuing research as an emeritus professor.

Oskar Anweiler/Hans-Jürgen Fuchs/Martina Dorner/Eberhard Petermann (Hrsg.): Bildungspolitik in Deutschland 1945-1990. Ein historisch-vergleichender Quellenband. Opladen: Leske + Budrich 1992 [Rezension]

Rezension von: Oskar Anweiler/Hans-Jürgen Fuchs/Martina Dorner/Eberhard Petermann (Hrsg.): Bildungspolitik in Deutschland 1945-1990. Ein historisch-vergleichender Quellenband. Opladen: Leske + Budrich 1992, 574 S.

Pugna por la soberanía : el debate sobre el concepto de soberanía a partir de las críticas de Carl Schmitt y Hermann Heller a la Teoría pura del derecho de Hans Kelsen.

La presente disertación tiene como objetivo principal explicar las posturas de los juristas Hans Kelsen, Carl Schmitt y Hermann Heller frente a la erradicación o liquidación del dogma de la soberanía para la teoría del Estado y del Derecho. En este sentido, de manera ya más específica, se analizarán las críticas de Heller y Schmitt frente la liquidación de la soberanía realizada por Kelsen, defendiendo que sus críticas pueden ser aglutinadas en dos grandes dimensiones. La primera asociada al pensamiento de Heller y Schmitt quienes criticarán el método “puro” kelseniano, dado que desconoce, según su postura, la función decisoria del Estado y el contenido político de sus decisiones. La segunda, se asocia a las críticas al entroncamiento de la postura kelseniana y el liberalismo político expresado en su cosmopolitismo y su defensa del parlamentarismo. Para demostrar esta hipótesis el presente trabajo se enmarca dentro de un método hermenéutico y filosófico dada su interdisciplinariedad, acudiendo como fuentes primarias a los textos de los autores y como secundarias a los comentaristas especializados en el pensamiento jurídico y político de la república de Weimar como Leticia Vita, y Jerónimo Molina.

Clozapine Promotes Glycolysis And Myelin Lipid Synthesis In Cultured Oligodendrocytes.

Clozapine displays stronger systemic metabolic side effects than haloperidol and it has been hypothesized that therapeutic antipsychotic and adverse metabolic effects of these drugs are related. Considering that cerebral disconnectivity through oligodendrocyte dysfunction has been implicated in schizophrenia, it is important to determine the effect of these drugs on oligodendrocyte energy metabolism and myelin lipid production. Effects of clozapine and haloperidol on glucose and myelin lipid metabolism were evaluated and compared in cultured OLN-93 oligodendrocytes. First, glycolytic activity was assessed by measurement of extra- and intracellular glucose and lactate levels. Next, the expression of glucose (GLUT) and monocarboxylate (MCT) transporters was determined after 6 and 24 h. And finally mitochondrial respiration, acetyl-CoA carboxylase, free fatty acids, and expression of the myelin lipid galactocerebroside were analyzed. Both drugs altered oligodendrocyte glucose metabolism, but in opposite directions. Clozapine improved the glucose uptake, production and release of lactate, without altering GLUT and MCT. In contrast, haloperidol led to higher extracellular levels of glucose and lower levels of lactate, suggesting reduced glycolysis. Antipsychotics did not alter significantly the number of functionally intact mitochondria, but clozapine enhanced the efficacy of oxidative phosphorylation and expression of galactocerebroside. Our findings support the superior impact of clozapine on white matter integrity in schizophrenia as previously observed, suggesting that this drug improves the energy supply and myelin lipid synthesis in oligodendrocytes. Characterizing the underlying signal transduction pathways may pave the way for novel oligodendrocyte-directed schizophrenia therapies.

Preclinical Target Validation Using Patient-derived Cells.

The Structural Genomics Consortium (SGC) and its clinical, industry and disease-foundation partners are launching open-source preclinical translational medicine studies.

Mineral Nutrition Of Campos Rupestres Plant Species On Contrasting Nutrient-impoverished Soil Types.

In Brazil, the campos rupestres occur over the Brazilian shield, and are characterized by acidic nutrient-impoverished soils, which are particularly low in phosphorus (P). Despite recognition of the campos rupestres as a global biodiversity hotspot, little is known about the diversity of P-acquisition strategies and other aspects of plant mineral nutrition in this region. To explore nutrient-acquisition strategies and assess aspects of plant P nutrition, we measured leaf P and nitrogen (N) concentrations, characterized root morphology and determined the percentage arbuscular mycorrhizal (AM) colonization of 50 dominant species in six communities, representing a gradient of soil P availability. Leaf manganese (Mn) concentration was measured as a proxy for carboxylate-releasing strategies. Communities on the most P-impoverished soils had the highest proportion of nonmycorrhizal (NM) species, the lowest percentage of mycorrhizal colonization, and the greatest diversity of root specializations. The large spectrum of leaf P concentration and variation in root morphologies show high functional diversity for nutritional strategies. Higher leaf Mn concentrations were observed in NM compared with AM species, indicating that carboxylate-releasing P-mobilizing strategies are likely to be present in NM species. The soils of the campos rupestres are similar to the most P-impoverished soils in the world. The prevalence of NM strategies indicates a strong global functional convergence in plant mineral nutrition strategies among severely P-impoverished ecosystems.

Leaf Manganese Accumulation And Phosphorus-acquisition Efficiency.

Plants that deploy a phosphorus (P)-mobilising strategy based on the release of carboxylates tend to have high leaf manganese concentrations ([Mn]). This occurs because the carboxylates mobilise not only soil inorganic and organic P, but also a range of micronutrients, including Mn. Concentrations of most other micronutrients increase to a small extent, but Mn accumulates to significant levels, even when plants grow in soil with low concentrations of exchangeable Mn availability. Here, we propose that leaf [Mn] can be used to select for genotypes that are more efficient at acquiring P when soil P availability is low. Likewise, leaf [Mn] can be used to screen for belowground functional traits related to nutrient-acquisition strategies among species in low-P habitats.