37 research outputs found
Lift-off assisted patterning of few layers graphene
Graphene and 2D materials have been exploited in a growing number of applications and the quality of the deposited layer has been found to be a critical issue for the functionality of the developed devices. Particularly, Chemical Vapor Deposition (CVD) of high quality graphene should be preserved without defects also in the subsequent processes of transferring and patterning. In this work, a lift-off assisted patterning process of Few Layer Graphene (FLG) has been developed to obtain a significant simplification of the whole transferring method and a conformal growth on micrometre size features. The process is based on the lift-off of the catalyst seed layer prior to the FLG deposition. Starting from a SiO2 finished Silicon substrate, a photolithographic step has been carried out to define the micro patterns, then an evaporation of Pt thin film on Al2O3 adhesion layer has been performed. Subsequently, the Pt/Al2O3 lift-off step has been attained using a dimethyl sulfoxide (DMSO) bath. The FLG was grown directly on the patterned Pt seed layer by Chemical Vapor Deposition (CVD). Raman spectroscopy was applied on the patterned area in order to investigate the quality of the obtained graphene. Following the novel lift-off assisted patterning technique a minimization of the de-wetting phenomenon for temperatures up to 1000 °C was achieved and micropatterns, down to 10 µm, were easily covered with a high quality FL
Effect of Dexamethasone in Neospora Caninum Seropositive Calves
The aim of this study was to evaluate the effect of Dexamethasone (DXM) on clinical parameters, absolute and differential leukocyte count, specific IgG titers, IFN-γ production and parasitemia in beef calves seropositive to Neospora caninum. Fifteen calves were assigned to four experimental groups as follow: group A: 4 sero- positive calves treated with DXM; group B: 4 seropositive calves without DXM; group C: 3 seronegative calves treated with DXM, and group D: 4 seronegative calves without DXM treatment. The absolute leukocyte count was higher in both groups A and C in the 3rd day after the first dose of DXM mainly due to a significant neutrophilia (p0.05). Similarly, IFN-γ levels did not change among experimental groups (p>0.05). DNA was de- tected in calves from groups A and B at 7 Days Post Administra- tion (dpa) and from group A at 14 dpa. Even when DXM adminis- tration induced hemotological parameter changes, no reactivation of Neospora-infection was observed according to specific IgG titers and presence of the parasite on leukocytes in naturally seropositive beef male calves.Fil: Idarraga Bedoya, S.. Universidad Nacional de Mar del Plata; ArgentinaFil: Armendano, JoaquÃn Ignacio. Universidad Nacional de Mar del Plata; ArgentinaFil: Gual, Ignacio. Consejo Nacional de Investigaciones CientÃficas y Técnicas; Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: Hecker, Yanina Paola. Consejo Nacional de Investigaciones CientÃficas y Técnicas; ArgentinaFil: Leunda, M. R.. Instituto Nacional de TecnologÃa Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Pereyra, S.. Instituto Nacional de TecnologÃa Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Verna, Andrea Elizabeth. Consejo Nacional de Investigaciones CientÃficas y Técnicas; Argentina. Instituto Nacional de TecnologÃa Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Campero, C. M.. Instituto Nacional de TecnologÃa Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Odeón, Anselmo Carlos. Universidad Nacional de Mar del Plata; ArgentinaFil: Moore, Dadin Prando. Universidad Nacional de Mar del Plata; Argentina. Consejo Nacional de Investigaciones CientÃficas y Técnicas; Argentin
Multicentre Italian study of SARS-CoV-2 infection in children and adolescents, preliminary data as at 10 April 2020
Data on features of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in children and adolescents are scarce. We report preliminary results of an Italian multicentre study comprising 168 laboratory-confirmed paediatric cases (median: 2.3 years, range: 1 day-17.7 years, 55.9% males), of which 67.9% were hospitalised and 19.6% had comorbidities. Fever was the most common symptom, gastrointestinal manifestations were frequent; two children required intensive care, five had seizures, 49 received experimental treatments and all recovered
Ciencias Sociales: EconomÃa y Humanidades HANDBOOK T-I
Se presenta un breve examen de la producción y comercialización de rosa en México; un estudio en México sobre el ingreso mÃnimo de las familias que identifica la lÃnea de pobreza alimentaria en el área rural del sur de México, 2012; un pequeño estudio donde hablará sobre el análisis comparado del Sector Gubernamental y la EconomÃa Mexicana desde la perspectiva de los eslabonamientos productivos Hirshman-Rasmuss; un estudio sobre los canales de comercialización de limón persa en el municipio de MartÃnez de la Torre, Veracruz; una análisis del comercio estratégico en el TLCAN: El Estado en la polÃtica agrÃcola de biocombustibles; también se expresan acerca de la importancia de la comercialización del café en México; un diagnóstico, retos del comercio electrónico en el Sector Agroindustrial Mexicano; trabajo nos muestra y habla sobre la inversión extranjera directa y su impacto en crecimiento de México, un análisis en prospectiva: 1999-2010; un estudio acerca sobre la importancia de la Banca en México; un trabajo acerca de la competitividad de la producción agrÃcola en México, un análisis regional; se analizan todo acerca de el SIAL productor de quesos en Poxtla, competividad y territorio; se habla acerca de la intermediación financiera al servicio de la comunidad indÃgena: el fondo regional indÃgena Tarhiata Keri; ademas un estudio acerca de la demanda de Importaciones de durazno (Prunus pérsica L. Batsch) en México procedentes de Estados Unidos de América (1982-2011); Loera y Sepúlveda analizan los parámetros de la productividad forestal en la producción de madera en rollo; un análisis de factores sociales, ambientales y económicos del territorio rural cercano a la ciudad de México; un estudio acerca de la crisis económica mundial y su efecto sobre los flujos migratorios de América Latina; Magadán, Hernández y Escalona presentan la tipologÃa de los sujetos sociales que intervienen en el mercado campesino de Ocotlán Oaxaca; la normalización del proceso de compostaje: una opción para desarrollar el mercado de la composta; acerca de la reestructuración del capitalismo y crisis polÃtica en México; la rentabilidad de la producción de miel en el municipio de León, Guanjuato; la economÃa del maÃz en la región metropolitana, Chiapas, 2014; análisis de los centros de educación y cultura ambiental, necesidad de profesionalización Pedagógica de facilitadores ambientales; los Costos y competitividad de la producción del limón persa en el municipio de MartÃnez de la Torre, Veracruz
“Introduzione alla sezione tematica Edifici d'autore. Estetiche e Ideologie nella narrazione dei monumenti,
This thematic session of the journal is devoted to expressions of creative writing inspired by monuments. Our aim is to understand how and why diverse re/constructions of their specific genesis, descriptions of architectural features, explanations of symbolism, histories of mentors, sponsors and artists generate over/interpretations in the form of essays, short stories, historical novels and poems. Each article will investigate the ways in which writers, while speculating on and verbally reconstructing a monument, can instil aesthetic and ideological appreciations. The narration of monuments will have been examined with particular reference to: - polysemantic buildings, rooted in a specific place and historical context, but also open to multiple intercultural elaborations; - modes of constructing, restructuring or contesting historical identities and cultural memories; - stimuli for the imagery, through which mythical figures and events are evoked
Introduzione a Edifici d'autore. Estetiche e ideologie nella narrazione dei monumenti
La sezione tematica Edifici d’autore. Estetiche e ideologie nella narrazione dei monumenti è l’evoluzione e il compimento di un progetto di ricerca ideato da Paola Spinozzi e dedicato a Il Tempio Malatestiano oltre l’Italia. Scritti forestieri fra Ottocento e Novecento. Grazie al patrocinio del Comune di Rimini il progetto si è concretizzato in un ciclo di conferenze interdisciplinari tenutesi all’interno del Tempio nel mese di ottobre e novembre 2013
Involvement of the membrane-bound Na,K ATPase in the evolution of experimental injuries of the spinal cord.
[No abstract available