Results 11 to 20 of about 15,185 (178)
White matter hyperintensities are associated with locus coeruleus atrophy and astrocytic β<sub>2</sub>-adrenergic receptor expression. [PDF]
Alzheimers DementAbstract INTRODUCTION White matter hyperintensities (WMHs) are a robust marker of brain aging and dementia risk, typically attributed to vascular pathology. However, impaired astrocytic support may also contribute. The locus coeruleus (LC), which degenerates early in aging and Alzheimer's disease, provides widespread noradrenergic projections that ...
Vidal V +16 more
europepmc +2 more sources
El CNI: al servicio de España y de los ciudadanos
Arbor: Ciencia, Pensamiento y Cultura, 2005 El cambio de siglo ha supuesto, por un lado, la desaparición de algunas amenazas tradicionales para los Estados, centradas en las concepciones ideológicas, en la política de bloques y en la primacía de los intereses nacionales sobre los de las ...
Rafael Jiménez Villalonga
doaj +1 more source
On the Soundness of XAI in Prognostics and Health Management (PHM)
Information, 2023 The aim of predictive maintenance, within the field of prognostics and health management (PHM), is to identify and anticipate potential issues in the equipment before these become serious.
David Solís-Martín +2 more
doaj +1 more source
Inteligencia e intencionalidad
Scripta Theologica, 2017 Este artículo explora las dificultades de abordaje del problema de la inteligencia independiente de toda consideración intencional. Para ello, en primer lugar, examino tres interpretaciones clásicas del concepto de lo mental con el objetivo de mostrar sus principales carencias.
Echarte-Alonso, L.E. (Luis Enrique) +1 more
openaire +2 more sources
WEBDL: un sistema adaptativo de educación a distancia a través de Internet
RIED: Revista Iberoamericana de Educación a Distancia, 2000 La enseñanza universitaria a distancia se está beneficiando del uso intensivo de los recursos ofrecidos por Internet. La variedad de información y servicios ofertados unidos a la naturaleza dispar del alumnado dificultan el aprovechamiento de este medio.
Jesús González Boticario +2 more
doaj +1 more source
ConvGraph: Community Detection of Homogeneous Relationships in Weighted Graphs
Mathematics, 2021 This paper proposes a new method, ConvGraph, to detect communities in highly cohesive and isolated weighted graphs, where the sum of the weights is significantly higher inside than outside the communities.
Héctor Muñoz +4 more
doaj +1 more source
Paladyn, 2011 Reinforcement Learning (RL) as a paradigm aims to develop algorithms that allow to train an agent to optimally achieve a goal with minimal feedback information about the desired behavior, which is not precisely specified.
Graña Manuel +2 more
doaj +1 more source
Mathematics, 2022 In this paper a comparative, coarse grained, entropy data analysis of multi-scale log-returns distribution, produced by an ideal “optimal trader” and one thousand “noise traders” performing “bucket shop” trading, by following four different financial ...
Alejandro Raúl Hernández-Montoya +3 more
doaj +1 more source
Incremental Learning of Latent Forests
IEEE Access, 2020 In the analysis of real-world data, it is useful to learn a latent variable model that represents the data generation process. In this setting, latent tree models are useful because they are able to capture complex relationships while being easily ...
Fernando Rodriguez-Sanchez +2 more
doaj +1 more source
Land Degradation &Development, EarlyView.ABSTRACT In recent years, biochar has been studied for its range of applications. Recognized by the IPCC as a key Carbon Dioxide Removal (CDR) strategy, it also stands out as an important tool for reclaiming degraded lands, including vast global areas affected by salinity, such as those in China, India, and Australia.
Juciane Vieira de Assis Freire +12 more
wiley +1 more source