Search results for "MIME"
showing 10 items of 311 documents
Façade Solar Control and Shading Strategies for Buildings in the Mediterranean Region
2020
With the pressing need for holistic solutions that can help in overcoming the imminent environmental and resources crises, a call for the conservation of natural resources and sustainable strategies is needed. Sustainable strategies allow for the mitigation against the impact of climate change on the environment while, simultaneously, seeking the health and comfort of users. Another environmental issue that is worthy of the attention of the scientific research community is the reduction of resources consumption, through the implementation of sustainable development concepts and the use of renewable sources of energy generation. These two aforementioned paradigms are both intrinsic in nature…
Membranes and More. Membrane-Mimetic Approach to Advanced Materials. ByJ. H. Fendler, Advances in Polymeric Science, Vol. 113, Springer, Berlin 1994,…
1995
Verbal, linguistique et langagier. Enunciazione e antropologia del gesto mentale.
2018
The paper aims to explain the metalinguistic value of three distinct but related concepts of the Theory of Predicative and Enunciative Operations (henceforth, TOPE). This research program, conceived by the french linguist Antoine Culioli, introduced a fundamental theoretical distinction between the concepts of “verbal” “linguistique” et “langagier”. The first concept refer to the complementary processes of phonation and audition that characterize every interlocutory exchange. The second one refer to the rules that characterize the formal system of a specific natural language. The third and last concept refer to the language operations viewed as processes of construction of meaning. With par…
Percorsi architettonici. Un caso di studio alla Cala di Palermo
2022
Il caso di studio è stato presentato nel 2019 alla Biennale di Pisa. Si tratta di una ricerca progettuale che sovrappone lo stato fisico del fare architettura verso ‘territori’ mediati da luce/ombra, interno/esterno e viceversa. Il progetto è un fatto complesso che va affrontato in modo semplice per un tempo che cambia abitudini e stili di vita. Deve saper ascoltare le condizioni fisiche e ambientali di un luogo e interrogarsi costantemente per stabilire un dialogo necessario e ricomprendere la connessione che lega realtà e mimesis. Ed è proprio all’interno di questa sequenza che individuiamo, nel sistema complesso di segni, il nuovo. Questi sono identificabili come ‘limiti’ o ‘risorse’ ent…
ESPERIRE MIMETICO E RAZIONALITÀ NEL MODELLO ADORNIANO DI RAPPORTO MENTE-MONDO.
2014
Il saggio ricostruisce il ruolo cognitivo e razionale della mimesi nel modello adorniano di conoscenza come “differenziazione”. Vi è proposta un’interpretazione della capacità del “pensare per costellazioni” e del linguaggio di “cogliere la cosa”, che ne evidenzia la lontananza dal “vecchio realismo della rappresentazione oggettiva (der alte Abbildrealismus)”. Esso mira anche a rendere esplicito come il modello adorniano di conoscenza sia in grado di dar conto di alcune recenti acquisizioni neurofisiologiche su un livello mimetico di rapporto mente-mondo, e come esso contribuisca ad una convincente interpretazione, razionalista ed antiintellettualista ad un tempo, di alcune loro implicazion…
Arte e nuove tecnologie: fine della mimesis?
2012
La teoria dell’imitazione centrale nella riflessione estetica fin dall’antichità e fulcro del sistema delle Belle Arti elaborato nel Settecento da Charles Batteux sembra entrare in crisi con l’emergere delle nuove tecnologie e in particolare con la realtà virtuale. Il saggio, attraverso l’esame di alcune istallazioni artistiche multimediali e interattive, mette in luce le riconfigurazioni del concetto di imitazione nella contemporaneità in cui l’intero apparato categoriale tradizionale (autore, opera, fruitore) appare completamente trasformato.
Theoretical and Experimental Study of the Crystal Structures, Lattice Vibrations, and Band Structures of Monazite-Type PbCrO4, PbSeO4, SrCrO4, and Sr…
2015
The crystal structures, lattice vibrations, and electronic band structures of PbCrO4, PbSeO4, SrCrO4, and SrSeO4 were studied by ab initio calculations, Raman spectroscopy, X-ray diffraction, and optical-absorption measurements. Calculations properly describe the crystal structures of the four compounds, which are isomorphic to the monazite structure and were confirmed by X-ray diffraction. Information is also obtained on the Raman- and IR-active phonons, with all of the vibrational modes assigned. In addition, the band structures and electronic densities of states of the four compounds were determined. All are indirect-gap semiconductors. In particular, chromates are found to have band gap…
Self-assembly of janus dendrimers into uniform dendrimersomes and other complex architectures
2010
Janus Drug Delivery Vehicle Efficient drug delivery vehicles need to be produced in a limited size range and with uniform size distribution. The self-assembly of traditional small-molecule and polymeric amphiphiles has led to the production of micelles, liposomes, polymeric micelles, and polymersomes for use in drug delivery applications. Now, Percec et al. (p. 1009 ) describe the self-assembly of Janus-type (i.e., two-headed) dendrimers to produce monodisperse supramolecular constructs, termed “dendrimersomes,” and other complex architectures. The structures, which showed long-term stability as well as very narrow size distributions, were easily produced by the injection of an ethanolic so…
Selective recognition of neutral guests in an aqueous medium by a biomimetic calix[6]cryptamide receptor
2015
The design of artificial receptors that can efficiently work in water is a challenging research area. A possible biomimetic approach for the elaboration of such receptors consists of associating a hydrophobic cavity with a polar polyfunctional binding site. On this basis, a hydrophilic calix[6]cryptamide decorated with oligo(ethylene glycol) units (i.e. 8) was synthesized through an efficient [1 + 1] macrocyclization reaction as the key-step. The complexation of neutral molecules was evaluated by NMR spectroscopy through competition experiments either in apolar or aqueous media. In both media, host 8 can bind neutral species that display H-bonding acceptor and donor groups such as amides or…
Synthesis of enantiopure pyrrolidine-derived peptidomimetics and oligo-beta-peptides via nucleophilic ring-opening of beta-lactams.
2006
The synthesis of the two enantiomers of pyrrolidine-derived spiro beta-lactams by resolution with D- and L-Boc phenylalanine is described. The potential of these optically active spiro beta-lactams on the synthesis of peptidomimetics as analogues of melanostatin is evaluated. Theoretical studies of several models, at the Becke3LYP/6-31+G* level of theory, together with previous experimental evidences from our group, gathered by NMR, allow us to design structures that can efficiently mimic some biologically active peptide-type molecules. On the other hand, the spiro beta-lactams have shown their utility in the preparation of beta-peptides. As an example, a homo-tetra-beta-peptide was synthes…