O Portal do docente é uma ferramenta de apoio que permite a cada Professor da FCT NOVA criar autonomamente a sua página pessoal e aí inserir o seu curriculum, divulgar artigos científicos, apresentar as disciplinas leccionadas, partilhar feeds, etc.
Kholkin, AL, R. Martins, H. Aguas, I. Ferreira, V. Silva, OA Smirnova, M. E. V. Costa, P. M. Vilarinho, E. Fortunato, and JL Baptista. "Metal-ferroelectric thin film devices." Journal of non-crystalline solids. 299 (2002): 1311-1315. Abstract
n/a
Kholkin, AL, R. Martins, H. Aguas, I. Ferreira, V. Silva, OA Smirnova, M. E. V. Costa, P. M. Vilarinho, E. Fortunato, and JL Baptista. "Metal-ferroelectric thin film devices." Journal of non-crystalline solids. 299 (2002): 1311-1315. Abstract
The aim of this paper is to present a set of electric data concerning the performances before and after ageing of Cu-Sn-Cu joins used to solder power diodes and to compare the results achieved with the ones obtained in diodes soldered using the conventional technology. The set of results achieved show that the Cu-Sn-Cu joins present even better performances than the ones exhibited by diodes soldered using the conventional technology, without requiring the use of Mo discs to be inserted between the silicon crystal and the metal contacts (stud or finger) to compensate thermal mismatches.
Casella, C., H. Costantini, a. Lemut, B. Limata, D. Bemmerer, R. Bonetti, C. Broggini, L. Campajola, P. Cocconi, P. Corvisiero, J. Cruz, a. D'Onofrio, a. Formicola, Z. Fülöp, G. Gervino, L. Gialanella, a. Guglielmetti, C. Gustavino, G. Gyurky, a. Loiano, G. Imbriani, P. a. Jesus, M. Junker, P. Musico, a. Ordine, F. Parodi, M. Parolin, JV Pinto, P. Prati, J. P. Ribeiro, V. Roca, D. Rogalla, C. Rolfs, M. Romano, C. Rossi-Alvarez, a. Rottura, F. Schuemann, E. Somorjai, F. Strieder, F. Terrasi, H. P. Trautvetter, a. Vomiero, and S. Zavatarelli. "{A new setup for the underground study of capture reactions}." Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 489 (2002): 160-169. Abstract
The structural changes in the heme macrocycle and substituents caused by binding of Ca2+ to the diheme cytochrome c peroxidase from Paracoccus pantotrophus were clarified by resonance Raman spectroscopy of the inactive fully oxidized form of the enzyme. The changes in the macrocycle vibrational modes are consistent with a Ca2+-dependent increase in the out-of-plane distortion of the low-potential heme, the proposed peroxidatic heme. Most of the increase in out-of-plane distortion occurs when the high-affinity site I is occupied, but a small further increase in distortion occurs when site II is also occupied by Ca2+ or Mg2+. This increase in the heme distortion explains the red shift in the Soret absorption band that occurs upon Ca2+ binding. Changes also occur in the low-frequency substituent modes of the heme, indicating that a structural change in the covalently attached fingerprint pentapeptide of the LP heme occurs upon Ca2+ binding to site I. These structural changes may lead to loss of the sixth ligand at the peroxidatic heme in the semireduced form of the enzyme and activation.