117,537 research outputs found
Ferrarotti (F.) De Lutiis (G.) Macioti (M.I.) Catucci (L.) Stadi sulla produzione sociale del sacro
No full textIsambert François-André. Ferrarotti (F.) De Lutiis (G.) Macioti (M.I.) Catucci (L.) Stadi sulla produzione sociale del sacro. In: Archives de sciences sociales des religions, n°48/2, 1979. p. 282
Prefazione a L. Romagni, Strutture della composizione
No full textPrefazione a un volume nato da una tesi di dottorato della Facoltà di Architettura di Ascoli Piceno (Univ. di Camerino) sui temi del rapporto fra architettura e musica
L'etica e le forme
No full textPresentazione critica, contestualizzazione storica e interpretazione dei testi di Leo Popper tradoti e curati dall'autore
Interactions between heavy metals and photosynthetic materials studied by optical techniques
No full textIn this work studies on rapid inhibitory interactions between heavy metals and
photosynthetic materials at different organization levels were carried out by
optical assay techniques, investigating the possibility of applications in the
heavy metal detection field. Spinach chloroplasts, thylakoids and Photosystem II
proteins were employed as biotools in combination with colorimetric assays based
on dichlorophenol indophenole (DCIP) photoreduction and on fluorescence emission
techniques. It was found that copper and mercury demonstrated a strong and rapid
photosynthetic activity inhibition, that varied from proteins to membranes,
while other metals like nickel, cobalt and manganese produced only slight
inhibition effects on all tested photosynthetic materials. By emission
measurements, only copper was found to rapidly influence the photosynthetic
material signals. These findings give interesting information about the rapid
effects of heavy metals on isolated photosynthetic samples, and are in addition
to the literature data concerning the effects of growth in heavy metal enriched
media
Effect of aggregation state, temperature and phospholipids on photobleaching of photosynthetic pigments in spinach Photosystem II core complexes
No full textPhotosystem II (PSII) complex activity is known to decrease under strong white light illumination, and this photoinhibition phenomenon is connected to the photobleaching of the PSII photosynthetic pigments. In this work the pigment photobleaching has been studied on PSII core complexes, by observing the effects of different factors such as the aggregation state (PSII monomers and dimers were used), temperature (20°C and 10°C temperatures were tested) and the presence of the exogenous phospholipids (cardiolipin and phosphatidylglycerol). In particular, PSII resistance against white light stress was studied by means of UV/VIS Absorption and Fluorescence Emission measurements. It was found that PSII dimers resulted more resistant against photobleaching and that lower temperature reduces the pigment photodestruction. Moreover, the presence of phosphatidylglycerol or cardiolipin enhanced the PSII resistance to the photobleaching phenomenon, mainly at lower temperatures
Estetica dell'abitare
No full textUn programma di ricerca in margine alla Biennale di Venezia intitolata "Less Aesthetics more Ethics"
Saggi di Estetica
No full textTraduzione e cura dal tedesco, rivista anche sull'originale ungherese, dei saggi del critico Leo Popper, scomparso prematuramente e valutato finora solo grazie alle citazioni a lui dedicate dall'amico G. Lukács
Liposomes containing nanoparticles: preparation and applications
No full textThe impetuous development of nanotechnology over the past two decades has enabled the production of a plethora of nanomaterials with outstanding optical, magnetic, electrical, catalytic and mechanical properties. The versatility of these materials attracted attention from the very beginning in the most disparate sectors of science and technology. The application of nanomaterials in the biological and biomedical fields soon benefited from the interaction with liposomes, which increased their biocompatibility and biostability. Liposomes indeed are versatile self-assembling supramolecular (nano)structures constituted of an aqueous core enclosed by a lipid bilayer, able to host hydrophobic and hydrophilic cargo, and with superior biocompatibility and great similarity with the biological membranes. The result is the construction of hybrid nanoscale architectures, in which nanoparticles (NPs) are allocated either in the aqueous core, in the palisade of the lipid bilayer or on the outer surface of the vesicles. In the first part of this review, the principal methods for the preparation of NP-loaded liposomes are carefully illustrated in a tutorial manner. In the second part, an overview of the great potentialities deriving from the conjugation of liposomes with NPs is presented. In each paragraph, the main characteristics of the most notable classes of NPs, the related issues, and the advantages arising from their association with liposomes are shown. Here, the most significant research works in literature for each kind of system are presented
Tensions and Convergence between History and Memory
No full textQuesto saggio è il mio primo contributo (di carattere più teorico rispetto ai successivi) alla ricerca Feelings and the City. Affective spaces in changing context, sosenuta dall'Università La Sapienza di Roma e coordinata da prof. Stefano Catucci (Dipartimento di Architettura e Progetto). La ricerca di carattere interdisciplinare ha affrontato e sviluppato l'approccio neo-fenomenologico all'analisi, allo studio di luoghi sensibili, finalizzati ai processi di rigenerazione urbana. Il volume in cui il mio saggio è inserito, è il primo esito editoriale della ricerca, introdotto da S. Catucci e Federico De Matteis (il quale insegna Composizione architettonica e urbana all'Università dell'Aquila) e contiene - tra gli altri - l'intervento del filosofo Tonino Griffero, dedicato al concetto di "atmosfera urbana" (e risonanza corporea) e quello di Paola Gregory (Politecnico di Torino), che tratta con l'"embodied cognition" la ripresa dell'empatia come frutto del dialogo scientifico tra neuroscienze, estetica atmosferologica e filosofia neo-fenomenologica. In questo contesto, io tratto il tema della componente emotiva e dell'approccio empatico tra analisi storica, storiografia, memoria e social-history, sottolinenado le distonie che interessano la storia fondata su documenti e prove (in crisi dagli anni settanta del Novecento) e la memoria collettiva, interessata da un fenomeno di crescente radicalizzazione soggettivistica
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