Search results for "Termini"
showing 10 items of 365 documents
Entre déterminismes et détermination : s’engager contre la colonisation, les trajectoires iconoclastes de deux catholiques à Besançon, 1947 - 1960
2015
National audience
Ceramica a vernice nera di età ellenistica da siti della Sicilia occidentale. Considerazioni tipologiche e analisi archerometriche
2006
Il contributo intende illustrare i risultati che è possibile raggiungere nell’esaminare dal punto di vista archeometrico precise forme ceramiche – e non semplici frammenti – a vernice nera, integrando le osservazioni di natura tipologica con i dati ottenuti dalla caratterizzazione mineralogica, petrografica e chimica degli impasti. I campioni provengono da quattro diversi siti della Sicilia nord-occidentale, e appartengono a due forme ben distinte, una coppa-skyphoide di produzione locale/regionale di fine IV-III sec. a.C., ed una patera di II-I sec. a.C. prodotta prevalentemente in Campana A, ma imitata forse anche da officine locali. Le analisi hanno permesso di discriminare in modo ogget…
Suppression of new particle formation from monoterpene oxidation by NO<sub>x</sub>
2014
Abstract. The impact of nitrogen oxides (NOx = NO + NO2) on new particle formation (NPF) and on photochemical ozone production from real plant volatile organic compound (BVOC) emissions was studied in a laboratory setup. At high NOx conditions ([BVOC] / [NOx] < 7, [NOx] > 23 ppb) new particle formation was suppressed. Instead, photochemical ozone formation was observed resulting in higher hydroxyl radical (OH) and lower nitrogen monoxide (NO) concentrations. When [NO] was reduced back to levels below 1 ppb by OH reactions, NPF was observed. Adding high amounts of NOx caused NPF to be slowed by orders of magnitude compared to analogous experiments at low NOx conditions ([NOx] ~300 ppt)…
Studies on the Mechanism of Inhibition by Phosphinothricin of Glutamine Synthetase Isolated from Triticum aestivum L.
1986
Summary The activity of glutamine synthetase (EC 6.3.1.2) isolated from roots and leaves of wheat is strongly inhibited by phosphinothricin. As revealed by gel filtration and kinetic studies the mechanism of inhibition appears to be irreversible. The results indicate that the rate limiting step of the reaction of the inhibitor with the chloroplast glutamine synthetase is not the initial, but the following reaction. However, of root glutamine synthetase the irreversible inhibition follows a second order reaction depending on the concentration of the enzyme and of phosphinothricin and the rate limiting step is the formation of the initial enzyme-inhibitor complex. According to the kinetic dat…
SN1 Reactions in Supercritical Carbon Dioxide in the Presence of Alcohols: the Role of Preferential Solvation
2016
Ethanol (3b) inhibits SN1 reactions of alkyl halides 1 in supercritical carbon dioxide (scCO2) and gives no ethers as products. The unexpected behaviour of alcohols 3 in the reaction of alkyl halides 1 with 1,3-dimethoxybenzene (2) in scCO2 under different conditions is rationalised in terms of Bronsted and Lewis acid–base equilibria of reagents, intermediates, additives and products in a singular solvent characterised by: (i) the strong quadrupole and Lewis acid character of carbon dioxide, which hinders SN2 paths by strongly solvating basic solutes; (ii) the weak Lewis base character of carbon dioxide, which prevents it from behaving as a proton sink; (iii) the compressible nature of scCO…
Kinetische untersuchungen zur reaktionsfähighkeit von chlormethylgruppen in methylendiphenolen
1984
The chloromethyl derivatives of 16 differently substituted methylenediphenols were synthesized for the first time. To compare their reactivity, the solvolysis in methanol and the animolysis with an excess of p-nitroaniline in dimethyl sulfoxide were studied kinetically at 25°C. The rate constants for the methanolysis do not differ very much, beside of the fact that para-chloromethyl derivatives react about 100 times faster than ortho-chloromethyl derivatives. However, for the aminolysis a large acceleration up to 103 was found for compounds having both hydroxyl groups in ortho-position to the methylene bridge. Obviously, the cleavage of the OH bond, which occurs in the rate determining step…
Der einfluß benachbarter grundbausteine auf die ammonolyse von essigsäureestern phenolischer mehrkernverbindungen
1972
Die Ammonolyse der Essigsaureester verschiedener phenolischer Zwei- und Dreikernverbindungen, die neben Methylphenolbausteinen jeweils einen Nitrophenolbaustein enthalten, wurde untersucht. In allen Fallen wird wie bei einkernigen Nitrophenylestern die Esterbindung im Nitrophenolbaustein ammonolytisch gespalten. Wenn die Bausteine uber Methylenbrucken in ortho-Stellung zu den phenolischen Hydroxylgruppen verknupft sind, werden jedoch auch die Esterbindungen in den Methylphenolbausteinen gespalten, obwohl die Ester von Methylphenolen und Mehrkernverbindungen, die nur Methylgruppen als Substituenten tragen, unter gleichen Bedingungen durch Ammoniak nicht angegriffen werden. In ubereinstimmung…
Kompensācija cietušajam par nodarīto kaitējumu kriminālprocesā
2015
Mūsdienās aizvien ir aktuāla morālā kaitējuma kompensācijas noteikšana kriminālprocesā, it sevišķi tāpēc, ka morālam kaitējumam nepastāv precīzi nosakāms naudas ekvivalents. Darba mērķis ir izveidot universālu, ilgspējīgu morālā kaitējuma noteikšanas koncepciju, skaidri noteikt kritērijus, kuri tiesnešiem jāņem vērā, lemjot par kaitējuma kompensācijas apmēru, turklāt izpētīt arī praktiskos jautājumus, kas saistās ar kompensācijas pieteikšanu. Pētījuma rezultātā izstrādāta ilgspējīga morālā kaitējuma koncepcija, kurā noteikti rekomendējoši, taču aptuveni kompensācijas piešķiršanas apmēri, kā arī piedāvāti vairāki Kriminālprocesa likuma grozījumi.
Art.61 "Ricorsi" e Art.66 "Computo dei termini" del D.P.R. n. 600/1973
2011
Libertad, determinismo y responsabilidad moral
2015
Este trabajo comienza con un análisis de los conceptos de determinismo, libertad y responsabilidad moral. En relación con la libertad, distinguimos tres aspectos o condiciones de esta: posibilidades alternativas, control volitivo-racional y control u origen último. Aunque estas tres condiciones parecen inicialmente necesarias para la responsabilidad moral, no todos aceptan que realmente lo son; y hay también divergencias por lo que respecta a su compatibilidad con el determinismo. La actitud ante estas dos cuestiones define las principales posiciones en el debate actual sobre las relaciones entre libertad, responsabilidad moral y determinismo: por un lado, el incompatibilismo en distintas v…