Search results for " dono"
showing 7 items of 377 documents
Mutat terra vices. Identità, cambiamento e memoria culturale nell'ultimo Orazio
2010
Per molto tempo il quarto libro di odi di Orazio è rimasto ai margini degli studi sull’autore e sulla sua produzione, ora relegato nell’angolo della poesia antica meno interessante, perché esplicitamente frutto della commissione del potere, ora riletto come opera della quale è impossibile, e forse inutile, individuare la specificità. Questo volume prende le mosse proprio dal dato più problematico offerto dalla raccolta, ossia la dichiarata discontinuità rispetto ai primi tre libri lirici, e mette a fuoco la centralità, tematica e strutturale, che il cambiamento e i suoi effetti assumono nei quindici componimenti che la costituiscono. Viene delineata così una pista esegetica che interpreta i…
Chromogenic detection of nerve agent mimics
2008
The current rise in international concern over criminal terrorist attacks via chemical warfare (CW) agents has resulted in an increasing interest in the detection of these lethal chemicals. Among CW species, nerve agents are extremely dangerous and their high toxicity and ease of production underscore the need to detect these deadly chemicals via quick and reliable procedures. A number of detection systems have been developed, most of them based on enzymatic and physical methodologies. However, these usually show limitations such as low selectivity, lack of portability and a certain complexity in their use. An alternative to these classical methods that has been gaining interest in recent y…
Solvatochromic behaviour of new donor–acceptor oligothiophenes
2021
Oligothiophene derivatives play a central role in the formulation of materials used in devices in the field of organic electronics. In this work, we report the results of the study of UV-vis absorption and fluorescence spectra, in several solvents, of a series of oligothiophenes recently synthesized in our laboratory. The studied oligothiophenes present different structures due to several factors: the donor– acceptor (D–A) or acceptor–donor–acceptor (A–D–A) architecture, the number of thiophene rings in the backbone (ranging from three to eight), the number and position of solubilizing octyl chains in the backbone, and the type of acceptor moieties (from Knoevenagel condensation either with…
Repeated kidney re-transplantation—the Eurotransplant experience: a retrospective multicenter outcome analysis
2020
Transplant international (2020). doi:10.1111/tri.13569
Dei riti di questua o della reciprocità asimmetrica
2012
Le apparenti peculiarità delle questue-cerimonie, rispetto alle altre forme di questua, sono essenzialmente relative alla presenza di una prestazione “espressiva” e al destino finale dei beni raccolti. Per quanto attiene al primo punto può rilevarsi che laddove siano assenti anche le più elementari forme di prestazione espressiva, interviene l’offerta immediata da parte dei questuanti di immagini di santi o oggetti sacralizzati (questue individuali o collettive per le feste patronali, ecc.) nonché l’offerta differita di una attenzione da parte di potenti entità extraumane; inoltre, sul piano sociale, si attiva il potenziale obbligo a dare del richiedente in analoghe circostanze. I questuant…
Tunable Interaction Strength and Nature of the S···Br Halogen Bonds in [(Thione)Br2] Systems
2015
The strength and nature of the S···Br and Br···Br interactions were systematically tuned by altering the electron donor properties of the thione group. Three new halogen-bonded compounds, [(N-methylbenzothiazole-2-thione)Br2]·0.5CH2Cl2 (1), [(2(3H)-benzothiazolethione)Br2] (2), and [(2-benzimidazolethione)Br]·[Br3] (3), were synthesized and studied structurally by using X-ray crystallography and computationally by using charge density analysis based on QTAIM calculations. Analysis of the interaction strength indicated a formation of surprisingly strong S···Br halogen bonds in 1 (−104 kJ mol–1, and RBrS = 0.64) and 2 (−116 kJ mol–1, and RBrS = 0.63) with a substantial covalent contribution. …
Dzīvo nieres donoru lēmuma pieņemšanas aksioloģiskais pamatojums
2015
Maģistra darba nosaukums ir „Dzīvo nieres donoru lēmuma pieņemšanas aksioloģiskais pamatojums”. Darba mērķis ir atklāt, kāpēc indivīds izvēlas kļūt par nieres donoru. Tēma Latvijā līdz šim nav pētīta. Darbā izmantoju dokumentu analīzi, mēdiju rakstu kontentanalīzi un interviju analīzi. Intervijas veiktas šī pētījuma ietvaros ar dzīvajiem nieres donoriem; papildus veikta viena eksperta intervija. Darba teorijā skatu citos vērtību pētījumos izmantotas vērtību struktūras. Kā nozīmīgas izvirzu dzīves kvalitātes pētījumos un bioētikā ietvertās vērtības. Pētījuma ietvaros atklāju gan nieres donoru lēmuma pieņemšanas situāciju un kontekstu, gan individuālās vērtības, kas saistītas ar lēmuma pieņem…