Results 1 to 10 of about 366,214 (248)
Universidad Nacional de Colombia [PDF]
Comparative Studies in Society and History, 1959 For the first time in its history, the National University of Colombia has a Department of Sociology. Organized temporarily within the Faculty of Economic Sciences, the new department is directed by Orlando Fals Borda, a Colombian sociologist trained in the United States, author of widely known studies of Latin American peasant societies, and since ...
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Molecular Oncology, EarlyView.In the present work, we have identified a transcriptional signature based on the differential expression of six genes (BCL2&MAST4, HSH2D&LAT2, METRN&PITPNM2) that would facilitate the early detection of T‐cell acute lymphoblastic leukemia (T‐ALL) patients prone to a poor treatment response and could be implemented at diagnosis, along with other risk ...
Antonio Lahera +11 more
wiley +1 more source
Resolving the Structural Duality of Graphene Grain Boundaries
Advanced Materials, EarlyView.Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo +11 more
wiley +1 more source
INAUGURACIÓN DE LA UNIVERSIDAD NACIONAL
Revista Historia de la Educación Latinoamericana, 2011 Discurso en el acto de la inauguración de la Universidad Nacionalde México, el 22 de septiembre de 1910.
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Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes
Advanced Materials, EarlyView.Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro +13 more
wiley +1 more source
Revista Colombiana de Química, 2010 Universidad Nacional de Colombia Universidad Nacional de Colombia
doaj +18 more sources
Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics
Advanced Materials, EarlyView.Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón +6 more
wiley +1 more source
Una “verdadera” universidad. El proceso de transformación de la Universidad Obrera Nacional en Universidad Tecnológica Nacional (1955-1959) [PDF]
Historia Regional, 2022 The objective of this work is to analyze the transformation process of the National Workers University (UON) in the period immediately after the coup that removed Perón, with special emphasis on the tensions generated around the concept of "university", and of the university hierarchy of this institution.
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Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis
Advanced Materials, EarlyView.Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena +10 more
wiley +1 more source
Advanced Science, EarlyView.SMAD4 is identified as a guardian of 3D genome architecture in lung squamous cell carcinoma. Loss of SMAD4 unleashes EP300 at chromatin loop anchors, strengthening enhancer–promoter looping and H3K27ac at the SOX2 locus to drive aberrant SOX2 activation and tumor cell proliferation.
Qian Tang +33 more
wiley +1 more source