502 research outputs found
Renewing Steiner Teacher Education: A Conversation With Florian Osswald
No full textThis article contains an interview between the author and Florian Osswald, one of the co-leaders of the Steiner education movement worldwide, held at the end of the four-day Asian Steiner Teacher Educators’ Conference in Yuchi, Taiwan in February, 2020. It focuses on the work of the International Teacher Education Project (ITEP), an initiative set up by Osswald in 2017; the aim of ITEP is the renewal of Steiner teacher education worldwide, through a process of long-term engagement with teacher educators around the world. The interview covers the consultative process Osswald has chosen for ITEP and indicates how a century-old, globally distributed, spiritually based educational movement is looking to maintain that relevance. It gives insight into the current status of Steiner teacher education and some indications of directions in which it might develop further
Alcohol dehydrogenase whole-cell catalysts - A broad technology platform for life science applications
No full textOsswald S, Doderer K, Gröger H, Wienand W. Alcohol dehydrogenase whole-cell catalysts - A broad technology platform for life science applications. CHIMICA OGGI-CHEMISTRY TODAY. 2007;25(5, S):16-18
On the combustion and sooting behavior of standard and hydro-treated jet fuels: An experimental and modeling study on the compositional effects
No full textIn a context of growing level of environmental awareness, emission from aviation are the subject of increasing scrutiny. This situation poses important challenges because, due to safety, practical and economic factors, aero-transportation technologies are not likely to undergo rapid paradigm shifts. An area where important innovations are being introduced is fuel technology: fuels from alternative processes, potentially from renewable sources, offer the opportunity of limiting the carbon footprint of transportation, moreover, a better control on fuel quality can contribute to reducing emissions. Hydro-treating of oil based fuels can reduce their sulfur and aromatic content promoting a cleaner combustion. In order to better understand the impact of hydro-treating on emissions of PAHs and soot from jet fuels, new speciation data covering oxidation intermediates and soot precursors were measured in a flow reactor for a standard jet fuel and its hydro-treated counterpart. Using a detailed kinetic mechanism and complex surrogate blends mimicking the composition of the real fuels, the speciation data from the flow reactor were simulated. Additionally, soot formation trends were calculated and compared with previously published data. Using the kinetic model, which is based on mechanistic principles, it was possible to separate the relative contribution of different processes and, for the fuel blends of interest, the role played by specific components in the PAHs and soot formation. The results obtained provide useful information towards more effective fuel formulation strategies and fuel blends modeling
Distinguishing Properties and Relations in the Denotation of Adjectives. An Empirical Investigation
No full textHartung M, Frank A. Distinguishing Properties and Relations in the Denotation of Adjectives. An Empirical Investigation. In: Gamerschlag T, Gerland D, Osswald R, Petersen W, eds. Frames and Concept Types. Applications in Linguistics and Philosophy. Studies in Linguistics and Philosophy. Springer; 2014: 179-197
Player agency in interactive narrative: audience, actor & author
No full textThe question motivating this review paper is, how can
computer-based interactive narrative be used as a constructivist learn-
ing activity? The paper proposes that player agency can be used to
link interactive narrative to learner agency in constructivist theory,
and to classify approaches to interactive narrative. The traditional
question driving research in interactive narrative is, ‘how can an in-
teractive narrative deal with a high degree of player agency, while
maintaining a coherent and well-formed narrative?’ This question
derives from an Aristotelian approach to interactive narrative that,
as the question shows, is inherently antagonistic to player agency.
Within this approach, player agency must be restricted and manip-
ulated to maintain the narrative. Two alternative approaches based
on Brecht’s Epic Theatre and Boal’s Theatre of the Oppressed are
reviewed. If a Boalian approach to interactive narrative is taken the
conflict between narrative and player agency dissolves. The question
that emerges from this approach is quite different from the traditional
question above, and presents a more useful approach to applying in-
teractive narrative as a constructivist learning activity
The passive constitution of sensation: association and affection in Husserl and Merleau-Ponty
No full textLos análisis sobre la pasividad emprendidos por E. Husserl constituyen un importante antecedente de la fenomenología desarrollada por M. Merleau-Ponty. En este sentido, es posible reconocer líneas de interpretación que muestran una clara continuidad entre ambos: la fundación de estratos yoicos en procesos pasivos, el rechazo de las interpretaciones reale» e irreales de la asociación, la concepción gestáltica del sentir y el carácter afectante de lo sensible. Merleau-Ponty, sin embargo, estima más allá de Husserl que una real consideración de la dimensión pasiva de la experiencia implica debilitar la prioridad constituyente del polo subjetivo en la experiencia del mundo.This paper examines Husserl’s theory of passive synthesis of association identifying some of its resonances in Merleau-Ponty’s phenomenology. For this purpose, first it situates the specific problem in the general context of Husserlian analyses on passivity and its different levels, taking into account the Merleau-Pontyan reception of these analyses. Secondly, it considers the parallel critique that both philosophers address to the atomist interpretation of associative synthesis. In this way, it is finally possible to evaluate certain differences between the interpretation that each author proposes of the affecting nature of the sensible.Fil: Garcia, Esteban Andres. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires; ArgentinaFil: Osswald, Andrés Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires; Argentin
Immunodepletion of α-plurivorin effector leads to loss of virulence of Phytophthora plurivora towards Fagus sylvatica
No full textPhytophthora species secrete several proteins during their interaction with plants. Some of these proteins manipulate host metabolism favouring infection, while others can be recognized by plants thus triggering defence. Elicitins are known to elicit plant defences, leading to resistance. Here, we characterized the elicitin α-plurivorin and proved that it was essential for the virulence of Phytophthora plurivora towards Fagus sylvatica. The immunodepletion of this peptide impaired its penetration into host tissue and in parallel P. plurivora lost its ability to colonize beech roots. Furthermore, the lack of α-plurivorin inside the host led to an up-regulation of several defence-related genes of both salicylic acid and jasmonate/ethylene pathways, suggesting that α-plurivorin might act as an effector-triggered susceptibility during infection. Consequently, plants survived infection with P. plurivora after α-plurivorin immunodepletion, whereas the majority of the infected control plants had died at the end of the experiment. Because canonical elicitins are ubiquitously secreted by many Phytophthora species, it is possible that these molecules may play a similar role in other susceptible interactions, being a potential target for controlling Phytophthora diseases
Glucose-Insulin-Potassium Therapy Guided by a Glucose-Controlled Insulin Infusion System in Acute Myocardinal Infarction
No full textDendrimers with a 4,4′-bipyridinium core and electron-donor branches. Electrochemical and spectroscopic properties
No full textThe synthesis, characterization, and electrochemical and spectroscopic properties of a new family of dendrimers comprising a 4,4′-bipyridinium core and 1,3-dimethyleneoxybenzene-type dendrons are described. The electrochemical results show that there is no significant inhibition of electron transfer involving the dendrimer core by the dendrons. The strong fluorescence of the 1,3-dimethyleneoxybenzene units of the branches is completely quenched as a result of charge-transfer interactions with the core
Osswald, William H. (Birth, 1901-10-19)
No full textAddress: 316 Findlay4066/Pg.182/1901/M W/Ger/Ger/Mrs. HardtOriginal record filed in drawer labeled 'OSER-OTTEN'
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