Results 111 to 120 of about 49,253 (327)

When Does Alzheimer's Disease Start? Plasma Aβ42/40 Assays Show Steep Changes at Aβ‐PET Centiloid 15, Mean Age of 66 Years

open access: yesAnnals of Neurology, EarlyView.
Objective Sporadic late‐onset Alzheimer's disease (AD) is characterized by a long pre‐clinical phase where amyloid‐beta (Aβ) and tau begin to accumulate in the brain. The primary objective was to determine the age at which AD starts by finding the average population age when both positron emission tomography (PET) Aβ (Aβ‐PET) and plasma Aβ42/40 become ...
Rodrigo Cánovas   +29 more
wiley   +1 more source

Analysis of the capabilities of large and small language models (LLM/SLM) for optimizing decision-making processes in a radio communication system

open access: yesТехнічна інженерія
The modern radio communication system operates in conditions of extreme complexity, characterized by a dynamically changing environment, high density of information flows, and active enemy countermeasures.
S.O. Dupelich, V.V. Dzyubenko
doaj   +1 more source

Decoding the Pathophysiology of Autoimmune Diseases—Mechanism, Triggers, and Nanotherapeutics: A Review

open access: yesAdvanced NanoBiomed Research, EarlyView.
This review highlights how autoimmune diseases arise from intertwined immunological, genetic, and environmental factors, emphasizing gut microbiota dysbiosis as a pivotal driver. It outlines emerging nanotechnology‐based strategies—such as liposomes, hydrogels, and polymeric nanoparticles—that enhance targeted drug delivery, minimize systemic toxicity,
Md. Meraj Ansari   +5 more
wiley   +1 more source

PAPR Reduction of OTSM with Random and Orthogonal SLM Phase Sequences and its Recovery in the Presence of EPA, EVA and ETU Channel Models [PDF]

open access: yesRadioengineering
To overcome the high peak-to-average-power ratio (PAPR) in orthogonal time sequency multiplexing (OTSM), this document proposes orthogonal and random selective mapping phase vectors (OSLM and RSLM) after some modifications to be applicable with OTSM ...
M. I. Al-Rayif
doaj  

Electromembrane Extraction for Multiclass Pesticide Assessment in Soil Matrices: Sustainable Analytical Insights

open access: yesAnalysis &Sensing, EarlyView.
The U‐shaped electromembrane extraction with liquid chromatography‐mass spectrometry enables rapid multiclass pesticide screening in soil. The 15 min, low‐solvent workflow achieves high recoveries and robust linearity, while AGREEprep and GAPI assessments highlight a greener profile compared to literature reports, which represents a smart strategy for ...
Rafael O. Martins   +9 more
wiley   +1 more source

Simulation Analysis and Experimental Study on SLM Forming Titanium Alloy Milling Hole [PDF]

open access: gold, 2022
Wentian Shi   +6 more
openalex   +1 more source

Mucosal‐Associated Invariant T Cells in Rheumatic Diseases

open access: yesArthritis &Rheumatology, EarlyView.
Mucosal‐associated invariant T (MAIT) cells are innate‐like T cells defined by their semi‐invariant T cell receptor and restriction by the major histocompatibility complex class I–related molecule (MR1). These cells are primarily activated by microbial‐derived metabolites presented by MR1 or by cytokines.
Manon Lesturgie‐Talarek   +7 more
wiley   +1 more source

Anti-corrosion and wear resistance properties of AlSi10Mg alloy and SiC/AlSi10Mg composites fabricated by selective laser melting

open access: yesCailiao gongcheng
The SiC/AlSi10Mg composites were fabricated via selective laser melting(SLM). The phase characteristics, microstructure, anti-corrosion and wear resistance properties of SLM SiC/AlSi10Mg and SLM AlSi10Mg samples were investigated by XRD, SEM, EDS, EBSD ...
DING Xueping   +5 more
doaj   +1 more source

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