1,701 research outputs found
Portrait of Baptist Mathias in war bonnet, 1943?
No full textPostcard; Caption on image: Sub-chief Mathias. J.W. Meiers<br>Verso caption: Baptist Mathias Kutenai Church Chief. Sent by Rev. John J. O'Kennedy. Polson, Mont.<br>Published in The Indian Sentinel, 1943-11<br>Size: 12.2cm x 8cm<br>Negative no.: Same as Identifie
Mauersegler weiter Wege. Mathias Enard: Kompass
No full textAnalysis of the peculiar scientific narrative in the novel of the Prix-Goncourt winning author Mathias Enard
O papel do professor na iniciação ao futsal
No full textOrientador: Marcos Mathias LamersMonografia (licenciatura) - Universidade Federal do Paraná. Setor de Ciências Biológicas. Curso de Educação Física
Les commissions électorales en Afrique de l'Ouest
No full text[author: Mathias Hounkpe ; Ismaila Madior Fall]Electronic ed.: Abuja ; Bonn : FES, 201
Paul Bourget, écrivain engagé
No full textPaul Bourget, A committed writer, Yehoshua Mathias.
In the France of the early twentieth century, Paul Bourget's figure is that of a successful novelist who became gradually a «committed author». A monarchist, deeply conservative, passionate defender of religion and the family as the vital bases of the social order, he thus became the bard of the bourgeois ethic faced with the destabilization of modernity.Mathias Yehoshua. Paul Bourget, écrivain engagé. In: Vingtième Siècle, revue d'histoire, n°45, janvier-mars 1995. pp. 14-29
„Nature must be felt“ – Alexander von Humboldt, pioneer of an ecological worldview and protagonist of „transversal reason“
No full textDer Text erinnert zum 250sten Geburtsjahr an Alexander von Humboldt, ein Vordenker für eine ökologische Sicht der Welt und ein früher Protagonist „transversaler Vernunft“. Er ist als Ideengeber für die „neuen Naturtherapien“, für die Integrative Therapie und für eine ökologische Sicht in der Psychotherapie eine unverzichtbare Quelle. Einige aus dieser Perspektive wichtige Aspekte seines Denkens und Werkes werden aufgezeigt. Er ist ein Referenzautor für transversales und integratives Konzeptualisieren in unserer Zeit.The text commemorates the 250th year of birth of Alexander von Humboldt, a thought leader for an ecological view of the world and an early protagonist of „transversal reason“. He is an indispensable source of ideas for the „new nature therapies“, for integrative therapy and for an ecological viewpoint in psychotherapy. Some important aspects of his thinking and work are shown from this perspective. He is a reference author for transversal and integrative conceptualization in our time.https://www.fpi-publikation.de/gruene-texte/17-2019-petzold-h-g-mathias-wiedemann-u-natur-muss-gefuehlt-werden-alexander-v-humboldt/peerReviewedpublishedVersio
„Natur muss gefühlt werden“ – Alexander von Humboldt, Vordenker einer ökologischen Weltsicht und Protagonist „transversaler Vernunft“
No full textDer Text erinnert zum 250sten Geburtsjahr an Alexander von Humboldt, ein Vordenker für eine ökologische Sicht der Welt und ein früher Protagonist „transversaler Vernunft“. Er ist als Ideengeber für die „neuen Naturtherapien“, für die Integrative Therapie und für eine ökologische Sicht in der Psychotherapie eine unverzichtbare Quelle. Einige aus dieser Perspektive wichtige Aspekte seines Denkens und Werkes werden aufgezeigt. Er ist ein Referenzautor für transversales und integratives Konzeptualisieren in unserer Zeit.The text commemorates the 250th year of birth of Alexander von Humboldt, a thought leader for an ecological view of the world and an early protagonist of „transversal reason“. He is an indispensable source of ideas for the „new nature therapies“, for integrative therapy and for an ecological viewpoint in psychotherapy. Some important aspects of his thinking and work are shown from this perspective. He is a reference author for transversal and integrative conceptualization in our time.https://www.fpi-publikation.de/polyloge/25-2019-petzold-h-g-mathias-wiedemann-u-natur-muss-gefuehlt-werden-alexander-v-humboldt/peerReviewedpublishedVersio
Insertion of membrane proteins in artificial polymer membranes
No full textThe last few decades have seen a huge growth in research on “soft materials”. A large part of the research in this field was dedicated to the preparation of new types of artificial membranes, which behave similar to lipid or cell membranes. A particular challenge is the preparation of stabilized, flexible, adaptable and responsive materials. Similar to nature such systems can only be realized using hierarchically self-assembled systems. In this context we have introduced a new way of stabilizing lipid-bilayers using hydrophobic polymer scaffold. In contrast to other approaches, presented by Ringsdorf et al., 1988, the hydrophobic polymer scaffold allowed us to insert membrane proteins into the polymer stabilized membranes. One representative example of the functional insertion of a membrane protein into such stabilized membranes will be described in the present work. In another approach we used the self assembling capacity of amphiphilic block copolymers to prepare stable biomimetic membranes. The last few years have seen considerable progress in the development of block copolymer chemistry. Particularly, a whole series of new amphiphilic block copolymers with low glass-transition temperatures have been introduced. The diversity of block copolymer chemistry allows to vary the chemical constitution, such as the nature and the sequence of the repeat unit (as mentioned in a later section), the length and the different structures of the different blocks and even the molecular architecture of the whole polymer, block, graft, star, etc. This may lead to the formation of new types of self-assembled superstructures that are not accessible to conventional low molar mass amphiphiles. Recently our group introduced a new type of amphiphilic block copolymer composed of two hydrophilic side blocks poly-methyloxazoline (PMOXA) and one hydrophobic middle block polydimethylsiloxane (PDMS), forming an ABA triblock copolymer. The physico-chemical characterization of the ABA block copolymer has been described by Nardin et al. Similar to conventional low molar mass amphiphiles (lipids, surfactants), this polymer selfassembles in aqueous media and forms well defined superstructures. Depending on its molecular composition and the experimental conditions various lyotropic mesophases, vesicles and nanotubes have been identified. Most interestingly it has been shown that membranes formed by such polymers could be used as a matrix for the incorporation of integral membrane proteins.
In the present work we developed new procedures for membrane proteins that are adapted and
optimized with respect to the artificial polymer membranes. For that purpose we performed a series of
experiments with different membrane proteins that have different structural properties and
functionality. In all systems investigated we could successfully proof the incorporation and the
functionality of the proteins.
For a first experiment we used well characterized and stable membrane proteins like bacterial
porins. Porins are well characterized integral membrane proteins possessing interesting structural and
physical properties, such as hydrophobic β-strands, which can interact and insert into the hydrophobic
part of the block copolymer. Additionally, the porins form β-stranded pores, which allow a passive and
selective transfer of small molecules across a membrane.
Then, more complex membrane proteins were used such as hemagglutinin or
NADH:oxydoreductase. Both proteins are composed of a large soluble part which contributes to their
structural and functional particularities. The globular part of hemagglutinin is involved in the fusion of
two membranes whereas the soluble part of NADH:oxydoreductase is responsible for proton and
electron transfer across the membrane.
The combination of natural proteins with artificial polymer membranes allows the formation of
a new type of hybrid material combining the mechanical, chemical, and biological stability of the
amphiphile block copolymer and the functional specificity of membrane proteins
The reality of fiction: the ECO by Mathias Goeritz
No full textAbstract
This article covers the full biography of a building, the Experimental Museum El Eco, designed by Germanborn and Mexican émigré artist and architect Mathias Goeritz. It provides an approach intersecting the biography of the author, the history of the building, and prominent individuals of the two cultural traditions, German and Mexican, who participated in the creation of a very special and unique building: El Eco. On the one hand, the ethics of Expressionism, the interest in non-European art, the cult of primitivism and the aesthetic system of the pair of concepts abstraction-empathy, all stemming from German culture. On the other, the pantheistic religiosity of landscape, zoomorphism and anthropomorphism, the interest in masks, and the aesthetics of monumental scale, stemming from pre-Cortesian Mexican culture. Taking the stance of intertwining Mathias Goeritz parcours with those of individuals and issues from his German past and his Mexican future – highlighting the figures of Wilhelm Worringer, Paul Westheim, Luis Barragán, Edmundo O'Gorman, and Ida Rodríguez Prampolini – this article proposes a return trip from fiction to reality, following in the footsteps of the author and comparing them with the pathway of the very building El Eco
Oswald Mathias Ungers and Sol LeWitt: Variations
No full textOne of the fundamentals of Oswald Mathias Ungers work is the definition of a new unity between art and architecture. What this investigation is focused on is the identification of the intersection point between art and architecture, considering the project for the Entrance to the Kaiserthermen in Trier (20032007) as case study, revealing the system of theoretical, methodological and compositional correspondences. Plastic art is Ungers' main interlocutor: one of the author's most important references is Sol LeWitt (1928-2007), an artist he admired and collected. Setting the work of Oswald Mathias Unger and Sol LeWitt side by side, offers the opportunity to underline the shared interpretation that the two authors have of the world of forms postulated by Henri Focillon (1881-1943) in Life of Forms, according to which form, autonomous with respect to time and place, has its own universe, governed by its own laws, space and matter. According to these premises, we propose to read Trier's building through the instruments of art, following the hypothesis that in this project art embodies a creative and positive component in the definition of architecture, a cultural stimulus that guides the author in the design process
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