Results 161 to 170 of about 2,902,174 (292)

Associations of Sleep and Shift Work with Osteoarthritis Risk

Arthritis Care &Research, Accepted Article.
Objective Daily rhythms may be critical for maintaining homeostasis of joint tissues. We aimed to investigate the relationships between circadian clock disruption, sleep, and osteoarthritis (OA) risk in humans. Methods In the UK Biobank, a prospective 500,000‐person cohort, we evaluated associations between sleep duration, sleeplessness/insomnia, and ...
Elizabeth L. Yanik, Abigail Bridgeman, Erik D. Herzog, Vy Pham, Bradley A. Evanoff, Farshid Guilak   +5 more
wiley   +1 more source

Attosecond physics in optical near fields. [PDF]

Nat Phys
Heimerl J, Meier S, Herzig A, López Hoffmann F, Seiffert L, Lesko DMB, Hillmann S, Wittigschlager S, Weitz T, Fennel T, Hommelhoff P.   +10 more
europepmc   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Compatibility of the evolution equation for heat flux in dual-phase-lag and three-phase-lag with the principles of thermodynamics. [PDF]

Sci Rep
Fawzy A, Mahmoud W, Rawy EK, Ghaleb AF.
europepmc   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Quantum light drives electrons strongly at metal needle tips. [PDF]

Nat Phys
Heimerl J, Rasputnyi A, Pölloth J, Meier S, Chekhova M, Hommelhoff P.   +5 more
europepmc   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Lasing of a cavity-based X-ray source. [PDF]

Nature
Rauer P, Bahns I, Friedrich B, Casalbuoni S, Di Felice M, Dommach M, Freijo Martin I, Freund W, Grünert J, Guetg M, Karpics I, Karabekyan S, Koch A, Kujala N, La Civita D, Liu J, Maltezopoulos T, Makita M, Mayet F, Müller L, Rio B, Samoylova L, Schmidtchen S, Scholz M, Silenzi A, Strauch V, Thoden D, Wohlenberg T, Vannoni M, Yang F, Decking W, Rossbach J, Sinn H.   +32 more
europepmc   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Characterizing the Intrinsic Background in XPS Using the Narrow-Shirley Approach. [PDF]

J Phys Chem C Nanomater Interfaces
Herrera-Gomez A, Guzman-Bucio D, Cabrera-German D, Dutoi AD, Vazquez-Lepe MO, Cortazar-Martinez O, Carmona-Carmona AJ.   +6 more
europepmc   +1 more source