Results 11 to 20 of about 485,125 (163)

Neural embedding of frailty in cognitively unimpaired aging and dementia across Latin America. [PDF]

open access: yesAlzheimers Dement
Abstract INTRODUCTION Frailty influences dementia risk and severity. However, its role in differentiating dementia subtypes and associations with brain structural and functional alterations remain understudied, especially in Latin America. METHODS Multi‐Partner Consortium to Expand Dementia Research in Latin America data included 3461 participants ...
Migeot J   +32 more
europepmc   +2 more sources

Validation of the ATN Biomarker Framework for Alzheimer's Disease in Latin American Population [PDF]

open access: yesAlzheimers Dement
Abstract Plasma biomarkers hold promise for improving dementia diagnosis but remain insufficiently validated in diverse populations. While AT(N) biomarkers for Alzheimer's disease (AD) and frontotemporal lobar degeneration (FTLD) are widely used in high‐income countries, their evaluation in Latin America (LA) is limited, despite the region's genetic ...
Duran‐Aniotz C.
europepmc   +2 more sources

Impact of ketosis on neuronal activity: a characterization of the functional role of ketone bodies using non‐invasive encephalography in humans [PDF]

open access: yesAlzheimers Dement
Abstract Background Neurometabolism plays a critical role in modulating dynamic brain activity through its impact on energy supply. While glucose is the primary energy source for neurons, ketone bodies are emerging as a key alternative, using an astrocytic pathway specially active under under high energy demand states. The ketogenic diet, known for its
Henríquez F, Medel V, O'Byrne D.
europepmc   +2 more sources

Contextualizing Blood-Based Biomarkers for Dementia Globally. [PDF]

open access: yesJ Neurochem
Blood‐based biomarkers are transforming how Alzheimer's disease can be detected and monitored, but their clinical meaning cannot be separated from the contexts in which they are used. This article argues that the value of these biomarkers depends on integrating biological signals with cognitive and functional assessment, life‐course exposures, social ...
Duran-Aniotz C   +6 more
europepmc   +2 more sources

Cartografía de calizas con datos hiperespectrales AISA Eagle II en una zona montañosa con vegetación densa: cómo orientar geológicamente la corrección atmosférica

open access: yesRevista de Teledetección, 2018
Las calizas son rocas críticas en la exploración de petróleo. Desarrollan series estratigráficas a menudo espesas, que afloran con frecuencia en zonas extensas de la superficie terrestre.
J. Buzzi   +5 more
doaj   +1 more source

Regional tectonics of western Mexico and its implications for the northern boundary of the Jalisco block

open access: yesGeofísica Internacional, 1994
El rift Tepic-Zacoalco en el occidente de México se ha considerado como el resultado de un fallamiento dextral y normal de edad Plio-Cuaternaria, producido a lo largo de la frontera norte del bloque de Jalisco debido a un proceso de riftogénesis que lo ...
Luca Ferrari   +4 more
doaj   +1 more source

Variación secular reciente y cartas de los elementos del campo geomagnético en México

open access: yesGeofísica Internacional, 1991
Se presentan cartas sintéticas de los elementos del campo magnético en el territorio nacional, elaboradas con base en el Campo Geomagnético Internacional de Referencia (IGRF).
J. J. Campos Enríquez   +2 more
doaj   +1 more source

K-Ar ages of four mafic lavas from the Central Jalisco Volcanic Lineament: Supporting evidence for a NW migration of volcanism within the Jalisco block, western Mexico

open access: yesGeofísica Internacional, 2001
Cuatro de las catorce muestras de lavas máficas colectadas a lo largo del lineamiento volcánico central de Jalisco (CJVL) fueron datados por el método de K-Ar para evidenciar un decremento sistemático en la edad del vulcanismo a lo largo del lineamiento ...
William L. Bandy   +3 more
doaj   +1 more source

Levantamiento magnetotélurico en el area de Culiacán, Sinaloa

open access: yesGeofísica Internacional, 1984
Se reporta un levantamiento magnetotelúrico usando referencia remota, realizado en el área de La. Presita, en las cercanías de Culiacán, Sinaloa. Se efectuaron quince sondeos arreglados en dos líneas transversales y una paralela al rumbo geológico ...
M. Martínez   +4 more
doaj   +1 more source

The ambidextrous scorecard: a strategic tool for balancing exploitation and exploration in the hospitality sector

open access: yesDyna
Para las organizaciones actuales, la capacidad de explotar su negocio mientras buscan simultáneamente nuevas oportunidades se ha consolidado como una estrategia clave.
Hassir Elias Lastre-Sierra   +1 more
doaj   +1 more source

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