1,356,518 research outputs found
Taula rodona amb Christine Esclapez i Aniol Casadevall
No full textDebat i torn de preguntes a les intervencions de Christine Esclapez sobre l'exemple de Marseille i Aniol Casadevall relacionada amb l'exemple de Girona4022.mp4
4022.mp
Entrevista al mestre Ramon Surroca Boada i als exalumnes Xavier Casadevall i Enric Rabasedas
No full textEntrevista al mestre Ramon Surroca Boada i els seus exalumnes Xavier Casadevall Arbusé i Enric Rabasedas Pons sobre l'escola a l'època franquista. Els entrevistats parlen dels seus records sobre l'escola d'aquells temps. Els mestres es refereixen sobretot a la seva formació professional, la relació entre els mestres, els salaris, la manera de fer classes, l'horari escolar, la metodologia i els recursos pedagògics que feien servir, la disciplina, etc. I els exalumnes dels seus records relacionats amb l'escola i els mestres, les infraestructures i la neteja dels edificis escolars, les assignatures que tenien, les extraescolars, la llengua que es feia servir a l'aula i al pati, la formació patriòtica i religiosa que varen rebre, etc153.G.mp
Selectivity study in the functionalization of organic compounds promoted by radical and radical-like species
No full textOxidative C-H functionalization of organic substrates promoted by cheap, eco-friendly, and selective systems has received a great attention in recent years, since it allows to convert relatively unreactive bonds, ubiquitous in organic molecules, into functional groups suitable for further transformations. Oxidation of sulfides to sulfoxides is another important process due to the presence of sulfinyl functional group in many natural products and biologically active compounds, like anti-inflammatory or antibiotic drugs. Moreover, sulfoxides are important reagents in organic synthesis: in fact, chiral sulfoxides have been used as auxiliaries in asymmetric synthesis. In this thesis, the use of biomimetic nonheme iron complexes and N-hydroxyphthalimide (NHPI) as efficient and selective catalysts for the oxidation of alkylaromatic compounds, alcohols, and sulfides by hydrogen atom transfer (HAT) or S-oxidative processes has been described. Concerning the former systems, elucidation of mechanism and reactivity patterns of [(N4Py)FeII]2+ complex have been investigated in detail with respect to the generation of the iron-oxo and iron-peroxo active species both in common organic solvents and in non-common fluorinated solvents. For the N-hydroxyphthalimide catalyst, reactivity, and selectivity patterns of the corresponding N-oxyl radical (PINO) in S-oxidation from sulfur compounds have been analysed by kinetic and product studies.
In addition, the two systems can be used together in a mediated system, in which NHPI acts as efficient mediator in the oxidations of organic compounds promoted by the nonheme iron(IV)-oxo complex, enhancing its reactivity and expanding its oxidizing ability. In the mediated system, the increase of reactivity is associated to the oxidation of the mediator to the corresponding phthalimide-N-oxyl radical, which efficiently abstracts hydrogen atoms from the substrates regenerating the mediator NHPI. The possibility of a change of selectivity in the C-H functionalization of alkylaromatic compounds and alcohols has been studied in the presence of the NHPI mediator as a result of the different polar effects operating in the HAT processes promoted by [(N4Py)FeIV=O]2+ and PINO radical. Furthermore, a change of chemoselectivity in the competitive oxidation of sulfides, alkylaromatic compounds and alcohols by effect of variation of the oxidizing species in the absence or in the presence of the NHPI mediator has been investigated
Josep Maria Corredor i Emili Blanch a Montpeller
No full textComunicació a càrrec de la Dra. Gemma Domènech Casadevall, investigadora de l'Institut Català de Recerca en Patrimoni Cultura, sobre la relació entre Josep M. Corredor i Emili Blanch Roig de Montpeller2921.mp4
2921.mp
El taller de gamelán para escuelas en un entorno museístico
No full textPresentació a càrrec del tècnic de so i compositor musical, Jordi Casadevall, sobre el taller de música gamelan per a públic escolar en un entorn museístic5416.mp4
5416.mp
Massiva assistència a l'acte en memòria del Dr Joan Sola i Casadevall
No full textEl passat dia 5 de maig es va celebrar, a la sala d'actes de la Facultat de Ciències i Biociències, un acte d'homenatge en memòria del doctor Joan Sola i Casadevall, professor de Química de la Universitat Autònoma de Barcelona, qui va morir el 17 de agost de 2009, a l'edat de 57 anys.El pasado día 5 de mayo se celebró, en la sala de actos de la Facultad de Ciencias y Biociencias, un acto de homenaje en memoria del doctor Joan Sola i Casadevall, profesor de Química de la Universitat Autònoma de Barcelona, quien falleció el 17 de agosto de 2009, a la edad de 57 años
L'experiència de Girona, carrers de música
No full textConferència a càrrec d'Aniol Casadevall, coordinador de l'Espai Marfà, sobre el projecte "Girona, carrers de música", centrat en el tema de les actuacions del músic al carrer4021.mp4
4021.mp
Stakeholders dialogues to reinforce the governance of the WEFE nexus in complex water systems. Learning from Lake Como, Italy
No full textQuè es pescava i què es pesca a Palamós (o el que veiem els biòlegs als fulls de subhasta)
No full textMargarida Casadevall, biòloga i professora de la Universitat de Girona, presenta un estudi comparatiu de les captures realitzades a la zona de la futura reserva per la flota pesquera de Palamós entre 1982, 2002 i 2006, ressaltant aquelles espècies utilitzades com a bioindicadoresAjuntament de Palamós; Confraria de pescadors de PalamósMargarida_Casadevall.mp
Mucosal Vaccines, Sterilizing Immunity, and the Future of SARS-CoV-2 Virulence
No full textSterilizing immunity after vaccination is desirable to prevent the spread of infection from vaccinees, which can be especially dangerous in hospital settings while managing frail patients. Sterilizing immunity requires neutralizing antibodies at the site of infection, which for respiratory viruses such as SARS-CoV-2 implies the occurrence of neutralizing IgA in mucosal secretions. Systemic vaccination by intramuscular delivery induces no or low-titer neutralizing IgA against vaccine antigens. Mucosal priming or boosting, is needed to provide sterilizing immunity. On the other side of the coin, sterilizing immunity, by zeroing interhuman transmission, could confine SARS-CoV-2 in animal reservoirs, preventing spontaneous attenuation of virulence in humans as presumably happened with the endemic coronaviruses. We review here the pros and cons of each vaccination strategy, the current mucosal SARS-CoV-2 vaccines under development, and their implications for public health
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