Results 111 to 120 of about 837,525 (210)
OFICINA DO HISTORIADOR ENTREVISTA
Entrevista com o historiador Rodrigo Patto Sá Motta.
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Co-Expression of Wild-Type P2X7R with Gln460Arg Variant Alters Receptor Function [PDF]
The P2X7 receptor is a member of the P2X family of ligand-gated ion channels. A single-nucleotide polymorphism leading to a glutamine (Gln) by arginine (Arg) substitution at codon 460 of the purinergic P2X7 receptor (P2X7R) has been associated with mood ...
Acuña, Matias +15 more
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Differential structure of the Thompson components of selfadjoint operators [PDF]
Different equivalence relations are defined in the set L(H)s of self- adjoint operators of a Hilbert space H in order to extend a very well known relation in the cone of positive operators.
Fongi, Guillermina +1 more
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Schur complements in Krein spaces [PDF]
The aim of this work is to generalize the notions of Schur complements and shorted operators to Krein spaces. Given a (bounded) J-selfadjoint operator A (with the unique factorization property) acting on a Krein space H and a suitable closed subspace S ...
Maestripieri, Alejandra Laura +1 more
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Oblique projections and frames [PDF]
We characterize those frames on a Hilbert space H which can be represented as the image of an orthonormal basis by an oblique projection defined on an extension K of H.
Antezana, Jorge Abel +3 more
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Diversidad de maiz en la sierra sur de Oaxaca, México: conocimiento y manejo tradicional.
El estado de Oaxaca representa un importante acervo de maíz en México. Estudios previos han indicado la presencia de muchas variedades locales y razas agronómicas en la Sierra Norte y Valles Centrales.
Beatriz Rendón-Aguilar +14 more
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Diversidad de maiz en la sierra sur de Oaxaca, México: conocimiento y manejo tradicional.
El estado de Oaxaca representa un importante acervo de maíz en México. Estudios previos han indicado la presencia de muchas variedades locales y razas agronómicas en la Sierra Norte y Valles Centrales.
Beatriz Rendón-Aguilar +14 more
doaj
Non positively curved metric in the space of positive definite infinite matrices [PDF]
We introduce a Riemannian metric with non positive curvature in the (infinite dimensional) manifold Σ∞ of positive invertible operators of a Hilbert space H, which are scalar perturbations of Hilbert-Schmidt operators.
Andruchow, Esteban, Varela, Alejandro
core
Los impuestos medioambientales en Cuba: Una asignatura pendiente
El presente trabajo tiene como objetivo ilustrar el comportamiento de la recaudación de impuestos medioambientales en Cuba en los últimos cinco años, los obligados al pago, la interacción de autoridades ambientales con la administración tributaria y el ...
Juan Carlos Vilaseca Méndez +1 more
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Oficina parisina, oficina genovesa
Lo scritto analizza il metodo progettuale dello studio Renzo Piano Building ...
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