Results 201 to 210 of about 2,320,333 (291)

Effects of morning caffeine' ingestion on mood States, simple reaction time, and short-term maximal performance on elite judoists. [PDF]

Asian J Sports Med, 2012
Souissi M, Abedelmalek S, Chtourou H, Atheymen R, Hakim A, Sahnoun Z.   +5 more
europepmc   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Microstructure Design of Steel‐Spinel Composites via Spark Plasma Sintering Process

Advanced Engineering Materials, EarlyView.
This study illustrates how spark plasma sintering at reduced oxygen partial pressure enables controlled formation of steel‐spinel composites through tailored redox reactions and cation exchange. Comparison of the MgO–Fe2O3, steel–(MgO+Cr2O3), and steel–(MgO+Fe2O3) systems shows how oxygen activity and interface chemistry govern spinel formation, phase ...
Mahnaz Mehdizadehlima, Christian Schimpf, Stefan Martin, Olga Fabrichnaya, David Rafaja   +4 more
wiley   +1 more source

The effect of transcutaneous auricular vagus nerve stimulation on vigilance, cognition, and mood during military exercise with acute sleep deprivation. [PDF]

Cogn Res Princ Implic
Passi T, Närväinen J, Lukander K, Laarni J, Lindholm M, Pettersson K, Mauno S, Pakarinen S.   +7 more
europepmc   +1 more source

PASTA‐ELN: Simplifying Research Data Management for Experimental Materials Science

Advanced Engineering Materials, EarlyView.
Research data management faces ongoing hurdles as many ELNs remain complex and restrictive. PASTA‐ELN offers an open‐source, cross‐platform solution that prioritizes simplicity, offline access, and user control. Its in tuitive folder structure, modular Python add‐ons, and open formats enable seamless documentation, FAIR data practices, and easy ...
S. Brinckmann, G. Winkens, R. Schwaiger
wiley   +1 more source

Prefrontal cortical deficits are a putative susceptibility factor for PTSD. [PDF]

Front Behav Neurosci
Nalloor R, Shanazz K, Vazdarjanova A.
europepmc   +1 more source

A Topology Optimization Framework for the Inverse Design of Nonlinear Mechanical Metamaterials

Advanced Engineering Materials, EarlyView.
This work uses topology optimization to design unit cells for mechanical metamaterials with a prescribed nonlinear stress–strain response. The framework adds contact and postbuckling modeling to synthesize microstructures for three highly nonlinear responses, including pseudoductile behavior, monostable with snap‐through buckling, and bistable ...
Charlie Aveline, Matthew Santer, Robert Hewson   +2 more
wiley   +1 more source

Within- and between-individual associations between sleep and cognition in older community-dwelling individuals. [PDF]

Front Aging
Della Monica C, Ravindran KKG, Atzori G, Trender W, Hampshire A, Skene SS, Hassanin H, Revell V, Dijk DJ.   +8 more
europepmc   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Testosterone modulates multispectral oscillatory activity serving performance of motor sequences in typically developing youth. [PDF]

J Physiol
Derby J, Ward TW, Petro NM, Son JJ, Ende GC, Rice DL, Coutant AT, Steiner EL, Calhoun VD, Wang YP, Stephen JM, Heinrichs-Graham E, Wilson TW.   +12 more
europepmc   +1 more source