Search results for "Verdi"
showing 10 items of 139 documents
Study of the influencing effect of pigments on the photoageing of terpenoid resins used as pictorial media
2006
Abstract Terpenoid resins have been mainly used as components of pictorial varnishes and binding media from ancient times. In such latest instances, the resin is mixed with pigments affecting its physical and chemical properties. A new procedure based on gas chromatography–mass spectrometry (GC/MS) has been applied, in this work, in combination with Fourier transform infrared spectroscopy (FTIR), with the aim of determining the changes undergone by di- and triterpenoid resins employed as components of binding media. The GC/MS method is based on the derivatisation of these resins using trimethylsilylimidazol. Characterization of the main components of the di- and triterpenoid fractions and t…
Pisum sativum – Pseudomonas interactions : influence on iron nutrution, growth and immunity of the host plant
2020
The project aimed at making progress in the knowledge of the iron-mediated interactions between pea and fluorescent pseudomonads in order to promote the iron-nutrition and health of the host-plant. A bibliographical study was conducted to draw up the state of the art concerning the influence of rhizosphere microorganisms on plant iron status (Chapter 1).Pisum sativum has been chosen as an agronomic model-plant because of its high potential in agroecology and in Human nutrition related to its ability to fix atmospheric nitrogen and to the high amino-acids content of its seeds. However, this species suffers from a high susceptibility to iron deficiency as expressed by the well-known chlorosis…
Pràctiques de recursos humans, clima laboral i resultats de gestió. Anàlisi del cas "Verdifresh"
2012
La crisi econòmica mundial obliga cada empresa a lliurar una batalla, a vegades amb si mateixa, per incrementar la seua competitivitat. Cada vegada més, les organitzacions són conscients de la necessitat de comptar amb treballadors alineats amb la seua estratègia. Per aconseguir-ho, algunes empreses s'esforcen a humanitzar les relacions laborals i redissenyar les seues pràctiques de gestió de recursos humans (RH). En aquest estudi s'analitza el cas de l'empresa Verdifresh. Les seues pràctiques de RH s'han dissenyat amb l'objectiu de fidelitzar els treballadors i millorar la seua percepció de les condicions laborals. En aquest treball s'analitzen aquest tipus de relacions i es descriuen les …
Comparison of iron acquisition from Fe–pyoverdine by strategy I and strategy II plants
2011
; Iron is an essential micronutrient for plants and associated microorganisms. However, the bioavailability of iron in cultivated soils islow. Plants and microorganisms have thus evolved active strategies of iron uptake. Two different iron uptake strategies have been described in dicotyledonous and monocotyledonous graminaceous species. In bacteria,this strat-egy relies on the synthesis of siderophores. Pyoverdines, a major class of siderophores produced byfluorescent pseudomo-nads, were previously shown topromote ironnutrition of the dicotyledonous species ArabidopsisthalianaL.(Heynh.), whereas contradictory reports were made on the contribution of those siderophores to the nutrition of g…
Inhibition of the mutagenicity of 2-nitrofluorene, 3-nitrofluoranthene and 1-nitropyrene by vitamins, porphyrins and related compounds, and vegetable…
1997
When 21 vitamins including related compounds haemin, chlorophyllin, chlorophyll, biliverdin and bilirubin, as well as juices from five fruits and 25 vegetables and solvent extracts from the residues of fruits and vegetables were tested for their antimutagenic potencies with respect to mutagenicity induced by 2-nitrofluorene (2-NF), 3-nitrofluoranthene (3-NFA) and 1-nitropyrene(1-NP) in Salmonella typhimurium TA98 the following results were obtained. The tetracyclic nitroarenes 3-NFA and 1-NP were in general more effectively antagonized by potent antimutagenic compounds than the tricyclic 2-NF. beta-Carotene, retinol, retinal, retinoic acid, retinol palmitate, riboflavin 5'-phosphate, alpha-…
Barriere verdi di protezione acustica e abbattimento polveri lungo le vie di grande comunicazione
2014
Barriere verdi di protezione acustica e abbattimento polveri lungo le vie di grande comunicazione
L'impianto, la gestione e la valorizzazione multifunzionale dei boschi periurbani
2014
I boschi periurbani, come tutti gli spazi verdi prossimi agli agglomerati urbani, migliorano le condizioni ambientali e la qualità dell'aria, contribuiscono alla conservazione della biodiversità, possono favorire l'aggregazione sociale. I boschi prossimi ai centri urbani rivestono inoltre un ruolo importante dal punto di vista paesaggistico e turistico e contribuiscono a contrastare i cambiamenti climatici. Questa pubblicazione, redatta con il supporto tecnico-scientifico dell'Accademia italiana di scienze forestali di Firenze, si propone di fornire linee guida per la progettazione, la realizzazione e la gestione dei boschi periurbani e delle fasce verdi nelle aree prossime agli agglomerati…
Place-Keeping and Ecological Services. Una prospettiva di Studi
2016
La diffusione di azioni di appropriazione e gestione condivisa di aree verdi urbane residuali o degradate (place-keeping) rende manifesto un cambio di prospettiva da parte dei cittadini. Esse legano il dibattito sugli urban commons e sulle pratiche di condivisione alla più generale questione ecologica urbana, e inducono a un ripensamento degli standard in senso prestazionale. Il contributo presenta i primi risultati di una ricerca più ampia, tuttora in corso, che indaga i servizi ecosistemici erogati nei casi di place-keeping, evidenziando analogie e differenze rispetto alle aree verdi tradizionalmente pianificate, e analizza il ruolo e la partecipazione dei cittadini nel progetto e nella g…
The Italian “National Opera” Imagined from a Southern Slavic Viewpoint: Franjo Ks. Kuhač and Josip Mandić
2019
The national awakening after the revolutions of 1848, and the related phenomenon of new operatic grammar disseminated from Russia and Bohemia to other countries of Central Europe, were the main factors in promoting a quest of musical autonomy either in Slovenia or in Croatia. In the light of the Southern Slavic people revival, the criticisms on the Italian opera and the Wagnerian Musikdrama, written by the prominent musicologist Franjo Kuhač (1834-1911), and the composer Josip Mandić (1883-1959), reveal two parallel points of view, which have not been taken into account until today. The negative judgement of Kuhač on the last works of Verdi, influenced by Wagner formulae, and the praise of …
Claudio Monteverdi entre acédia e melancolia
2014
Love melancholy is a central aspect of early modern era. Sixteenth century Italy is dominated by Petrach’s model, the acedia, a condition which is characterized by love pain and lack of reciprocity. But during the seventeenth century also a new melancholy feeling appears, a more gentle one characterized by a sweet nostalgia. In the article two compositions by Claudio Monteverdi are compared: Zefiro torna, on a text by Petrarca, for five voices, which is an example of the first idea of melancholy; and Zefiro torna, on a text by Rinuccini (a rewriting of the Petrarchan sonnet), for two tenors and continuo, which is an example of the second one. In the first composition Monteverdi draws upon t…