Results 31 to 40 of about 48,995 (266)

A cultura contemporânea na perspectiva da sociologia marxista

open access: yesCadernos de Campo, 1999
Este artigo visa estimular a reflexão em torno de qual o "lugar" ocupado pela cultura nas análises efetuadas em algumas correntes do marxismo.
Clovis Santa Fé Júnior
doaj  

Vasculitis leucocitoclástica posterior a vacuna contra la COVID-19

open access: yesRevista Argentina de Reumatología, 2022
Varios reportes comunicaron diferentes tipos de vasculitis en asociación temporal con una variedad de vacunas, y más recientemente con las vacunas para enfermedad por SARS-CoV-2 (COVID-19).
Federico Ceccato   +3 more
doaj   +1 more source

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Influence of Carbon Nanoparticles on Electrically Induced Wear of Grease‐Lubricated Steels

open access: yesAdvanced Materials Interfaces, EarlyView.
When an electric current enters a pair of rubbing surfaces, enormous damage takes place. In this research, how such damage occurs in the presence of protective grease and the mitigation with added carbon nanoparticles, were investigated. It was discovered that those particles regulate transport and interfacial electrical stability of the grease ...
Mohammad Humaun Kabir   +6 more
wiley   +1 more source

Posible leptospirosis clínica en dos gatos (Felis silvestris catus) del sur de la provincia de Santa Fe

open access: yesCiencia Veterinaria, 2020
La leptospirosis es una enfermedad infecciosa causada por Leptospira spp.. No suele considerarse como parte del diagnóstico diferencial en los gatos enfermos, lo cual reviste un riesgo significativo en la salud pública. Se describen dos posibles casos de
Natalia Yaafar   +6 more
doaj   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

open access: yesAdvanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz   +5 more
wiley   +1 more source

Trasplante Renal Experiencia de la Fundación Santa Fe de Bogotá

open access: yesRevista Colombiana de Cirugía, 1990
La Fundación Santa Fe de Bogotá dio al servicio el programa de trasplante renal en 1985. Desde entonces y hasta ahora se han realizado 48 trasplantes de riñón cuya experiencia se analiza en el presente artículo.
Gustavo A Quintero   +16 more
doaj  

Advanced Hepatocellular Carcinoma: Benefits of Atezolizumab and Bevacizumab in Clinical Practice. Case Report

open access: yesRevista Colombiana de Gastroenterología
Background: Hepatocellular carcinoma (HCC), originating from hepatocytes, ranks as the sixth most common cancer worldwide and the fourth leading cause of cancer-related mortality.
Erick Andrés Cantor Rizo   +5 more
doaj   +1 more source

Origen anómalo de arterias coronarias Reporte de un caso y revisión de la literatura

open access: yesRevista Colombiana de Cardiología, 2012
Las alteraciones anatómicas de las arterias coronarias representan un amplio espectro de anormalidades que son diagnosticadas habitualmente como un hallazgo incidental en autopsia o durante la realización de una arteriografía coronaria.
Nohra P. Romero, MD   +5 more
doaj   +1 more source

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