Results 81 to 90 of about 18,925,340 (295)

Associations Between Biomarkers of Alzheimer's Disease and Sleep in Cognitively Unimpaired Older Adults

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Sleep disturbances have been implicated as a risk factor for developing Alzheimer's disease (AD), but evidence linking plasma AD biomarkers to sleep in cognitively unimpaired individuals remains limited. The present study examined associations between evening, morning, and overnight changes in plasma AD biomarkers and measures of ...
Cornelia Sauter   +5 more
wiley   +1 more source

Altered physiological function, not structure, drives increased radiation-use efficiency of soybean grown at elevated CO2

open access: yes, 2010
Previous studies of elevated carbon dioxide concentration ([CO(2)]) on crop canopies have found that radiation-use efficiency is increased more than radiation-interception efficiency.
Rascher, U.   +4 more
core   +1 more source

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

open access: yesArthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos   +2 more
wiley   +1 more source

University of California Radiation Laboratory Reports UCRL-1854

open access: yes, 1952
Quarterly summary report of studies conducted through the University of California Radiation Laboratory.
University of California. Radiation Laboratory.
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Optimization of sowing dates for enhanced rice yield: insights from field experiments in the middle and lower reaches of the Yangtze River, China

open access: yesBMC Plant Biology
An efficacious strategy to adapt to climate change involves optimizing the planting season, a technique that has been extensively utilized to enhance the use of solar radiation and temperature resources in rice cultivation.
Yalan Ji   +6 more
doaj   +1 more source

Nitrogen Nutrition Index and Its Relationship with N Use Efficiency, Tuber Yield, Radiation Use Efficiency, and Leaf Parameters in Potatoes

open access: yesJournal of Integrative Agriculture, 2014
Knowledge about crop growth processes in relation to N limitation is necessary to optimize N management in farming system. Plant-based diagnostic method, for instance nitrogen nutrition index (NNI) were used to determine the crop nitrogen status.
Da-wei HU   +4 more
doaj   +1 more source

University of California Radiation Laboratory Reports UCRL-1632

open access: yes, 1952
Quarterly summary report of studies conducted through the Radiation Laboratory, University of California.
University of California. Radiation Laboratory.
core  

Radiation interception and radiation use efficiency of wheat and pea under different P availabilities

open access: yesField Crops Research, 2012
Abstract Above-ground biomass of crops can be expressed as the product between the cumulative intercepted radiation by the crop canopy (IR) and the radiation use efficiency (RUE) of the crop. The aim of the present study was to comparatively evaluate in wheat and pea these ecophysiological determinants of biomass under different P supplies at field ...
Sandana, Patricio   +2 more
openaire   +3 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

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