Results 41 to 50 of about 15,479 (162)

Acute Supplementation of Beta‐Hydroxybutyrate Increases Visual Cortical Excitability in Humans: A Combined Electro‐EncephaloGraphy and Magnetic Resonance Spectroscopy Study

open access: yesEuropean Journal of Neuroscience, Volume 62, Issue 7, October 2025.
Elevated plasma β‐hydroxybutyrate levels achieved by acute supplementation increased occipital glutamate (but not GABA+) levels and enhanced visual cortical excitability, as measured by larger steady‐state visual evoked potentials. The glutamate increase correlated with the increased steady‐state visual evoked potentials amplitude.
Cecilia Steinwurzel   +6 more
wiley   +1 more source

An application of the Sakai′s theorem to the characterization of H*‐algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 18, Issue 2, Page 317-322, 1995., 1995
The well‐known Sakai′s theorem, which states that every derivation acting on a von Neumann algebra is inner, is ,used to obtain a new elegant proof of the Saworotnow′s characterization theorem for associative H*‐algebras via two‐sided H*‐algebras. This proof completely avoids structure theory.
Borut Zalar
wiley   +1 more source

Ni oro blanco ni capitalismo verde. Acumulación por desfosilización en el caso del litio ¿argentino?

open access: yesCuadernos de Economía Crítica, 2022
La transición de un paradigma tecno-productivo fósil a uno post-fósil convierte al almacenamiento de energía en un problema central. Esto último torna al litio en un recurso estratégico para la transición energética y a la vez crítico para las potencias ...
Ariel M. Slipak , Melisa Argento
doaj  

Estabelecimento de uma rotina laboratorial para análise química de sedimentos e sua aplicação a sedimentos continentais do Minho (NW Portugal) : contribuição para a reconstituição paleoambiental da região [PDF]

open access: yes, 2006
Mestrado em Ciências do Ambiente - Área de Especialização em Qualidade AmbientalEste trabalho tem como principal objectivo a implementação de métodos de análise química de sedimentos para utilização em rotina no Laboratório de Espectrometria do ...
Ribeiro, Cristina Maria Carvalho da Mata
core  

Otimização de protocolos de extração de RNA em diferentes tecidos de milho. [PDF]

open access: yes, 2015
Neste trabalho, foram testados cinco métodos de extração de RNA (CTAB microextração, Concert? Invitrogen, Concert? Adaptado, TRI Reagente® Sigma e TRI Reagente® Adaptado), em dois diferentes tecidos de milho (mesocótilo e raiz), com o objetivo de ...
ALVES, J. D.   +4 more
core   +1 more source

Facile Solid‐State Synthesis of Prelithiated LiTiO2 With Nitrogen‐Doped Carbon for Lithium‐Ion Battery Anodes

open access: yesInternational Journal of Energy Research, Volume 2025, Issue 1, 2025.
Although Ti‐based oxides are attractive anode materials for Li‐ion batteries (LIBs) owing to their inherent stability and enhanced safety, their electrochemical performance is severely limited by low conductivity and slow Li‐ion diffusion. Conventional LiTiO2 synthesis methods are not cost‐effective because they rely on high‐purity precursors and ...
Duk-Hee Lee   +5 more
wiley   +1 more source

Some absolutely effective product methods

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 15, Issue 4, Page 641-651, 1992., 1992
It is proved that the product method A(C, 1), where (C, 1) is the Cesàro arithmetic mean matrix, is totally effective under certain conditions concerning the matrix A. This general result is applied to study absolute Nörlund summability of Fourier series and other related series.
H. P. Dikshit, J. A. Fridy
wiley   +1 more source

Avaliação da resistência à fratura de facetas estéticas minimamente invasivas de dissilicato de lítio e de resina composta [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2014.O objetivo deste trabalho foi comparar técnicas restauradoras em facetas estéticas com formas ...
Linhares, Ludmilla de Azevedo
core  

Redesigning mineral regimes to strengthen the environmental rule of law: A case study on lithium in brines

open access: yesReview of European, Comparative &International Environmental Law, Volume 33, Issue 3, Page 633-646, November 2024.
Abstract This article aims to contribute to aligning the legal regimes for energy transition minerals with sustainability and justice. The focus of the article is on effectively embedding the human right to a healthy environment into the design of these regimes.
Ana Elizabeth Bastida
wiley   +1 more source

ASOCIACION DEL POLIMORFISMO VAL108/158 MET Y RESPUESTA AL TRATAMIENTO CON LITIO

open access: yesEpistemus, 2018
Se realizó un estudio prospectivo, descriptivo y de asociación de casos y controles con respuesta y no respuesta al tratamiento con litio. Se realizó posteriormente extracción de DNA por medio de buffy coat y, genotipificación del rs4680 mediante el ...
Ilse Gámez Saiz   +5 more
doaj   +1 more source

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