المؤلفون: Acevedo, A, Cabrera, E, Delgado, W, Piccardo, R, Acosta , C

المصدر: Memorias del Instituto de Investigaciones en Ciencias de la Salud; Vol. 3 Núm. 1 (2005): Julio-Diciembre; 37-42 ; 1812-9528 ; 1817-4620

مصطلحات موضوعية: diabetes, microalbuminuria, presión arterial

الوصف: La diabetes constituye una afección común en el Paraguay, donde unas 300.000 personas la padecen y aproximadamente otras 500.000 personas presentan un estado previo a la enfermedad. La nefropatía es una de las complicaciones mas graves, que sobreviene por la falta de control de la enfermedad. En la actualidad, el acceso al tratamiento sustitutivo, hemodiálisis y transplante renal ha desplazado a la insuficiencia renal al tercer puesto como causa de muerte del paciente diabético, después de la cardiopatía isquémica y del accidente cerebro vascular. La presencia de microalbuminuria en orina es un claro marcador de riesgo hacia la progresión de las complicaciones de la enfermedad, especialmente las nefropatías. En este estudio la prevalencia de microalbuminuria hallada en los pacientes diabéticos tipo 2, fue de 34.7%, porcentaje elevado con respeto a la referencia que oscila alrededor del 20 al 40% en la Diabetes tipo 2.Existen factores de riesgo que predisponen al desarrollo de la microalbuminuria y su progresión, como son la duración de la diabetes, la falta de control de la glicemia, la hipertensión arterial, una mala alimentación y el tabaquismo. Con el control de dichos factores se vería reducido el riesgo de avance de la enfermedad. Se observó que a medida que aumenta el tiempo de evolución de la enfermedad aumenta la proporción de pacientes diabéticos con microalbuminuria, acompañados por un progresivo aumento de la presión arterial.

وصف الملف: application/pdf

العلاقة: https://revistascientificas.una.py/index.php/RIIC/article/view/734/749Test; https://revistascientificas.una.py/index.php/RIIC/article/view/734Test

الإتاحة: https://revistascientificas.una.py/index.php/RIIC/article/view/734Test

المؤلفون: STATERA, Marco, CIULLO, Giuseppe, LENISA, Paolo, BARION, Luca, BERTELLI, Susanna, CONTALBRIGO, Marco, FERRETTI, Paola, PAPPALARDO, Luciano Libero, Nardelli D., Piccardo R.

المساهمون: Statera, Marco, Ciullo, Giuseppe, Lenisa, Paolo, Nardelli, D., Piccardo, R., Barion, Luca, Bertelli, Susanna, Contalbrigo, Marco, Ferretti, Paola, Pappalardo, Luciano Libero

مصطلحات موضوعية: Critical current measurement, high temperature superconductor, MgB2 wire, test facility

الوصف: An innovative test bench for HTS cables has been designed and is presently under construction at the Cryogenic Laboratory of the University of Ferrara and INFN-Ferrara, Italy. The aim of the test bench is to measure of the critical current as a function of tension or compression of a straight MgB_{2} and HTS wire at their working temperature. Currents up to 600 A will be supplied to a 120 mm long wire, which can be cooled down to 20 K, by cold-heads in vacuum. The piece of information from the traction bench will be synchronized with the power supply and quench protection system. As the stress is constant on the wire cross-section, the measurement of the properties of a straight-wire represents a direct measurement of the strain behavior of the HTS wire. The full mechanical design will be illustrated together with the complete DAQ system.

وصف الملف: STAMPA

العلاقة: info:eu-repo/semantics/altIdentifier/wos/000318895100206; volume:23; issue:3; firstpage:---; lastpage:---; numberofpages:4; journal:IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY; http://hdl.handle.net/11392/1757097Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84879298295

الإتاحة: https://doi.org/10.1109/TASC.2013.2238988Test
http://hdl.handle.net/11392/1757097Test

المؤلفون: Kulich, Miloslav, Flukiger, René-Louis, Senatore, Carmine, Tropeano, M., Piccardo, R.

المصدر: ISSN: 0953-2048 ; Superconductor science and technology, vol. 26, no. 10 (2013) 105019.

مصطلحات موضوعية: info:eu-repo/classification/ddc/500.2, Superconductivity, Condensed matter: structural, mechanical et thermal

الوصف: A substantially different behaviour was observed between MgB2 wires produced either by in situ or ex situ processing after applying the recently developed technique of cold high pressure densification (or CHPD). In contrast to in situ wires, where densification at 1.5 GPa on binary and ternary alloyed in situ MgB2 wires causes an enhancement of mass density and a strong enhancement of Jc, ex situ wires up to 2 GPa show only a negligible enhancement of the MgB2 mass density, while a considerable enhancement of Jc is still observed. In both cases, this reflects an enhancement of grain connectivity, however in ex situ wires, the enhancement of Jc is connected to the partial disruption of the oxide layer around each MgB2 powder particle, in contrast to the enhancement of Jc in situ wires, which is correlated to a smaller void fraction and a larger contact area between neighbouring grains. It is well known that Jc of ex situ wires decreases after longer exposition times when exposed to air prior to annealing; after several months Jc falls to values ≤50% of the original value. After cold pressing, we have found that Jc of the same wire exceeded the original values, even after exposing the unreacted wire for >1 year to air. A lower electrical resistivity is measured on pressed ex situ MgB2 wires, which confirms the improvement of grain connectivity due to the breakage of the oxide layers. Thus, the application of high pressure at room temperature allows us to recover the values of Jc for ex situ wires even after they have been degraded either by low quality MgB2 precursors or by prolonged ageing of the already formed wire prior to the final heat treatment. The limits of the Jc enhancement in ex situ wires are discussed.

العلاقة: https://archive-ouverte.unige.ch/unige:36171Test; unige:36171

الإتاحة: https://doi.org/10.1088/0953-2048/26/10/105019Test
https://archive-ouverte.unige.ch/unige:36171Test

المؤلفون: Kulich, M, Flükiger, R L, Senatore, C, Tropeano, M, Piccardo, R

المصدر: Superconductor Science and Technology ; volume 26, issue 10, page 105019 ; ISSN 0953-2048 1361-6668

الإتاحة: https://doi.org/10.1088/0953-2048/26/10/105019Test
http://stacks.iop.org/0953-2048/26/i=10/a=105019/pdfTest
http://stacks.iop.org/0953-2048/26/i=10/a=105019?key=crossref.c13799fc81bd5bc5b0b68b20bfd79e0fTest

المؤلفون: PICCARDO R., MOGGIO I., ALLOISIO, MARINA, DELL'ERBA, CARLO, COMORETTO, DAVIDE, CUNIBERTI, CARLA EMILIA, DELLEPIANE, GIOVANNA

المساهمون: Piccardo, R., Alloisio, Marina, Moggio, I., Dell'Erba, Carlo, Comoretto, Davide, Cuniberti, CARLA EMILIA, Dellepiane, Giovanna

وصف الملف: STAMPA

العلاقة: info:eu-repo/semantics/altIdentifier/wos/WOS:000168741500257; volume:119; firstpage:565; lastpage:566; numberofpages:2; journal:SYNTHETIC METALS; http://hdl.handle.net/11567/248842Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0035867320

الإتاحة: https://doi.org/10.1016/S0379-6779Test(00)01205-4
http://hdl.handle.net/11567/248842Test

المؤلفون: Sanscritto, M., Piccardo, R., Vercellotti, T., Facco, G., Finocchio, Elisabetta, Barberis, Fabrizio

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=od______3710::ba6f58d6ef5d471794548befedff0f79Test
http://hdl.handle.net/11567/241355Test

المؤلفون: Piccardo, R., Sanscritto, M., Finocchio, Elisabetta, Facco, G., Rebaudi, A., Barberis, Fabrizio

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=od______3710::7d21e17a03e34186d31765acadf48b8eTest
http://hdl.handle.net/11567/241354Test

المؤلفون: Cabouro, G., Caboche, G., Chevalier, Sébastien, Piccardo, R.

المساهمون: Laboratoire de Recherche sur la Réactivité des Solides (LRRS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Dipartemento Chim & Chim Ind, University of Genoa (UNIGE)

المصدر: ISSN: 0378-7753.

مصطلحات موضوعية: chromia-forming alloy, electrical resistivity, oxidation, SOFC interconnect, MOCVD, screen-printing, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry

الوصف: International audience ; Iron-base alloys (Fe-Cr) are proposed hereafter as materials for interconnect of planar-type intermediate temperature solid oxide fuel cell (ITSOFC); they are an alternative solution instead of the use of ceramic interconnects. These steels form an oxide layer (chrornia) which protects the interconnect from the exterior environment, but is an electrical insulator. One solution envisaged in this work is the deposition of a reactive element oxide coating, that slows down the formation of the oxide layer and that increases its electric conductivity. The oxide layer, formed at high temperature on the uncoated alloys, is mainly composed of chromia; it grows in accordance with the parabolic rate law (k(p) = 1.4 x 10(-12) g(2) cm(-4) s(-1)). On the reactive element oxide-coated alloy, the parabolic rate constant, k(p), decreases to 1.3 x 10(-13) g(2) cm(-4) s(-1). At 800 degrees C, the area-specific resistance of Fe-30Cr alloys is about 0.03 Omega cm(2) after 24 h in laboratory air under atmospheric pressure. The Y2O3 coating reduces the electrical resistance 10-fold. This indicates that the application of Y2O3 coatings on Fe-30Cr alloy allows to use it as an interconnect for SOFC.

العلاقة: hal-00438120; https://hal.archives-ouvertes.fr/hal-00438120Test

الإتاحة: https://doi.org/10.1016/j.jpowsour.2005.08.039Test
https://hal.archives-ouvertes.fr/hal-00438120Test

المؤلفون: Piccardo, R., Alloisio, M., Moggio, I., Dell'Erba, C., Comoretto, D., Cuniberti, C., Dellepiane, G.

المصدر: Synthetic Metals; March 2001, Vol. 119 Issue: 1-3 p565-566, 2p