1,721,232 research outputs found
Profili di lettura in bambini con Disturbi Specifici di Apprendimento Verbali e Non-Verbali: dati preliminari
No full textCrisi, patrimonio culturale, sviluppo sostenibile
No full textUna riflessione sul ruolo del patrimonio culturale all'indomani della crisi economica e della emergenza sanitari
Separation and identification of volatile and non‐volatile compounds of wine by sorbent extraction and capillary gas chromatography
No full textSorbent extraction technology was used to separate the volatile and non‐volatile components of wine. The extracts were analyzed by capillary gas chromatography. Copyright © 1990 Dr. Alfred Huethig Publisher
Dynamic Burst Variation for Multiservice Transmission of Variable Bit Rate Streams in DVB SH Systems
No full textThermodynamics of reduction of Chromatium vinosum high-potential iron-sulfur protein and its histidine depleted H42Q mutant
No full textThe thermodynamic parameters for the reduction reaction of the high-potential iron-sulfur protein from Chromatium vinosum, and its H42Q mutant, have been measured by direct cyclic voltammetry using a 'non-isothermal' reference electrode. Histidine 42 is mainly responsible for the pH dependence of the reduction potential (E degrees) with pK(a), values equal to 5.9 and 6.3 for the oxidized and reduced proteins, respectively. The H42Q mutant does not present this pH dependence, although an increasing E degrees at the lowest pH values is still present. The main contribution to the difference in free energy between the protonated and the neutral His42 forms is given by the enthalpic term (Delta Delta H degrees = 7.4 kJ mol(-1)), although the entropic term is not negligible. (C) 1998 Elsevier Science S.A. All rights reserved
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