Search results for "SSB"
showing 10 items of 537 documents
The notion of eudaimonistic evaluation in Martha Nussbaum’s cognitive theory of emotions
2016
RESUMEN: En este artículo se presenta la evaluación eudaimonista como una articulación entre el agente y los objetos del mundo. Sostendremos que, gracias a esta noción, la teoría de las emociones de Nussbaum es adecuada para dar cuenta de la función adaptativa de las emociones, por lo que las teorías no cognitivas no resultarían superiores en este aspecto. Esta noción serviría, asimismo, para no dejar de lado los aspectos cognitivos de la emoción. Veremos cómo las ideas de Nussbaum se basan en las de las teorías evaluativas provenientes de la psicología, para después desplegar su propuesta en detalle. En la exposición, también trataremos otras cuestiones, entre ellas, la racionalidad de las…
Diorganotin(IV) complexes ofD-galacturonic acid: solid-state and solution-phase structural study
2003
Three diorganotin(IV) complexes of D-galacturonic acid (H2GalA; R = Me, n-Bu, Ph), two of which are new derivatives (R = Me, Ph), have been synthesized and their solid-state and solution-phase investigated by IR, Mossbauer, 1H, 13C and 119Sn NMR spectroscopy. The FTIR data suggest that H2GalA, in the dialkyltin derivatives, behaves as a dianionic ligand, coordinating the tin(IV) atom through an ester-type carboxylate and deprotonated alcoholic hydroxo groups, whereas a bridging carboxylate occurs in the diphenyltin(IV) complex. Octahedral and trigonal bipyramidal local geometries on tin(IV) atoms are proposed for dialkyltin(IV)GalA and diphenyltin(IV)GalA complexes respectively on the basis…
Brevetti
2010
Per il lavoro di ricerca,di cui il libro "Glassblock and Architecture. Evoluzione del vetromattone e recenti applicazioni" rappresenta una sintesi preliminare,sono stati analizzati e riportati in elenco numerosi brevetti sul vetromattone ed i sistemi di posa in opera ad esso correlati oltre che alcuni specifici accorgimenti atti a migliorare le caratteristiche del vetro e degli “accessori” utili all’istallazione dei vetromattoni stessi.Di ciascun brevetto si riportano il nome dell'autore, l’azienda per la quale il brevetto stesso è stato richiesto e pubblicato (laddove esistente), la data di presentazione della domanda di brevettazione e la relativa data di concessione.
Performance Analyses of Innovative Glassblocks for BIPV
2014
The paper illustrates the results of the performance analyses conducted on an innovative glassblock integrated with 3rd generation dye-sensitized solar cells, designed for enabling the construction of translucent and sustainable building envelopes. The analyses encompass the simulation of both thermal and optical performance referring to different configurations of the PV-integrated glassblock, showing the results obtained by using two different software tools: Comsol Multiphysics and WINDOW. The configurations may differ, for example, because of the position of the module inside the glassblock, the type of dye-sensitized solar module used (composition, transparency, design), and glassblock…
Fe and Zn co-substituted beta-tricalcium phosphate (β-TCP): Synthesis, structural, magnetic, mechanical and biological properties
2020
This work was supported by the European Social Fund under the No. 09.3.3- LMT-K-712 “Development of Competences of Scientists, other Researchers and Students through Practical Research Activities” measure. AK would like to express sincere gratitude for Fellowship administrated by The Japan Society for the Promotion of Science (JSPS). Fellow’s ID No.: L12546. Authors are grateful to R. Vargalis (Vilnius University) for taking SEM images. © 2020. This work is licensed under a CC BY-NC-ND license.
Ni@Fe2O3 heterodimers: controlled synthesis and magnetically recyclable catalytic application for dehalogenation reactions
2012
Ni@Fe2O3 heterodimer nanoparticles (NPs) were synthesized by thermal decomposition of organometallic reactants. After functionalization, these Ni@Fe2O3 heterodimers became water soluble. The pristine heterodimeric NPs were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Mossbauer spectroscopy and magnetic susceptibility measurements. A special advantage of the heterodimers lies in the fact that nanodomains of different composition can be used as catalysts for the removal of environmentally hazardous halogenated pollutants.
Investigation of the dynamics of bacteriorhodopsin
1990
Bacteriorhodopsin (bR) converted to the blue form by deionization has been reconstituted to the active purple membrane by addition of57Fe ions. Mossbauer spectra measured in a wide temperature range reveal Fe3+ binding places with oxygen atoms in the neighbourhood. No evidence for a well defined functional binding place of the iron has been found. On a timescale faster 100 ns the purple membrane shows increasing flexibility above 200 K. In order to analyse the influence of the lipids, a bacteriorhodopsin sample where the lipid content has been increased artificially by the incorporation of DMPC as well as a sample consisting of lipid bilayer have been investigated.
Mössbauer and TEM studies of the perovskite system (1-y)La2/3 $$A$$ 1/3TiO3·yLaFeO3
1994
The microscopic nature of the Mossbauer phase analysis has been found as being particularly valuable in testing assumptions suggested by TEM results regarding the microdomain structure and the population of different lattice sites by iron ions in the perovskite system (1-y)La2/3\(A\)1/3TiO3·yLaFeO3 with 0.04<y < 0.25 (\(A\) is an A-site vacancy). This system was found to contain only Fe3+-phases which are stable under normal conditions, but moderate heating in vacuo causes a partial reduction of ferric ions to ferrous ions.
Mössbauer spectroscopy on the reaction center of Rhodopseudomonas viridis
1992
Proteins called “reaction centers” (RC) can be isolated from many photosynthetic bacteria. They have one non-heme iron in a quinone acceptor region. The RC of Rhodopseudomonas viridis contains an additional tightly bound tetra-heme cytochrome c subunit. The electronic configuration of both cytochrome and the non-heme iron has been studied in the crystallized protein by Mossbauer spectroscopy at different redox potentials, pH-values, and with an addition of o-phenanthroline. At high potentials (Eh=+500mV) all heme irons are in the low spin Fe3+-state, and at low potential (Eh=−150mV) they are low spin Fe2+ with the same Mossbauer parameters for all hemes independent of pH. Redox titrations c…
Mössbauer Spectroscopy on Photosynthetic Bacteria: Investigation of Reaction Centers of Rhodopseudomonas Viridis
1990
Crystals of 57Fe enriched reaction centers have been investigated by Mossbauer spectroscopy. The cytochrome irons are in the low spin ferric state. The non-heme iron of the electron accepting side is partly ferrous high spin and partly ferrous low spin (or ferric high spin). Under the conditions of the experiment sodium ascorbate reduces only one cytochrome iron into the ferrous low spin state. Membrane bound proteins become flexible at higher temperatures than proteins with a hydrophilic surface. They are also less flexible, at least up to temperatures of about 250 K.