Results 11 to 20 of about 8,207 (117)

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

open access: yesAlzheimer's &Dementia, Volume 21, Issue S2, December 2025.
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 ...
Claudia Duran‐Aniotz
wiley   +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: yesAlzheimer's &Dementia, Volume 21, Issue S2, December 2025.
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
Felipe Ignacio González Henríquez Sr.   +2 more
wiley   +2 more sources

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

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

Aprendizaje organizativo de la exploración y la explotación

open access: yesRevista de Investigaciones Universidad del Quindío, 2023
Este artículo aborda los aspectos inherentes a las características del aprendizaje organizativo y explotación y la exploración, a saber, sus antecedentes del aprendizaje organizativo, fases tipos aprendizaje.
Leidy Viviana Burbano-Florez   +2 more
doaj   +1 more source

Comisión a la isla de Malpelo (fosfatos)

open access: yesBoletín Geológico, 1953
Este informe trata de una exploración a la Isla de Malpelo con el objeto de buscar fosfatos de origen animal y su manera de explotación. Después de hacer una descripción litológica de las formaciones que se encontraron, que son de origen ígneo, se ...
Alberto Sarmiento Alarcón
doaj   +1 more source

When and why to give shorebirds a head start

open access: yesConservation Biology, EarlyView.
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson   +4 more
wiley   +1 more source

Aspectos del yacimiento de caliza en la Hoya del cobre en el páramo de Sumapaz, al sur de Bogotá

open access: yesBoletín Geológico, 1953
De acuerdo con el deseo del Gobierno Nacional de integrar la región de Sumapaz a la economía capitalina, se están tomando medidas para darla a conocer más a fondo, sobre la base de un levantamiento aerofotogramétrico que depende de la utilización de ...
Roberto Wokittet
doaj   +1 more source

May I pick your brain? Local minds as living cadastres in a Portuguese eleventh‐century lawsuit

open access: yesEarly Medieval Europe, EarlyView.
In the context of a dispute with the monastery of Lorvão, in the late eleventh century, the monks of Vacariça, near Coimbra (modern Portugal), carried out a field enquiry in the village of Recardães. This was part of a failed attempt to repossess a number of land plots that they claimed were theirs, but had lost control of.
Julio Escalona
wiley   +1 more source

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