Results 81 to 90 of about 935,449 (339)

Anisotropic structural dynamics of monolayer crystals revealed by femtosecond surface x-ray scattering

open access: yes, 2018
X-ray scattering is one of the primary tools to determine crystallographic configuration with atomic accuracy. However, the measurement of ultrafast structural dynamics in monolayer crystals remains a long-standing challenge due to a significant ...
Clark, Genevieve   +24 more
core   +1 more source

The Effect of Repeated Microwaving Disinfection on the Dimensional Stability of Acrylic Dentures

open access: yesActa Stomatologica Croatica, 2014
Objective. The aim of this study was to evaluate the effect of repeated microwave disinfections on the dimensional stability of acrylic dentures. Materials and Methods. Three groups of dentures made of a heat polymerized acrylic resin were tested.
Nick Polychronakis   +2 more
doaj   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher   +10 more
wiley   +1 more source

Economic Burden of Rheumatoid Arthritis in Low‐ and Middle‐Income Countries: Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, EarlyView.
Objective The aim of this systematic review was to synthesize the economic impact of rheumatoid arthritis (RA) on households, health systems, and society in low‐ and middle‐income countries (LMICs). Methods Electronic databases such as PubMed, Web of Science, and CINAHL were searched using keywords related to RA and cost of illness.
Tadesse Gebrye   +6 more
wiley   +1 more source

Quality assessment of two- and three-dimensional unstructured meshes and validation of an upwind Euler flow solver [PDF]

open access: yes
Quality assessment procedures are described for two-dimensional and three-dimensional unstructured meshes. The procedures include measurement of minimum angles, element aspect ratios, stretching, and element skewness.
Batina, John T.   +2 more
core   +1 more source

A statistical analysis of two-dimensional patterns and its application to astrometry

open access: yes, 2018
Here we develop a general statistical procedure for the analysis of finite two-dimensional (2D) patterns inspired by the analysis of heavy-ion data. The method is used in the study of publicly available data obtained by the Gaia-ESA mission.
Píška, Karel, Zavada, Petr
core   +1 more source

Knee Crepitus and Osteoarthritis Features in Young Adults Following Traumatic Knee Injury

open access: yesArthritis Care &Research, EarlyView.
Objective This study explored the association between knee crepitus and the presence, and worsening, of structural osteoarthritis features and self‐reported outcomes in young adults following traumatic knee injury. Methods One year following anterior cruciate ligament reconstruction (ACLR), 112 participants (41 female participants; median age 28 years ...
Jamon L. Couch   +8 more
wiley   +1 more source

Application of SIFT operator with binocular vision fusion in Building engineering measurement

open access: yesInternational Journal of Metrology and Quality Engineering
With the increasing demand for higher accuracy and reliability in the field of engineering measurement, traditional methods have shown a series of problems when facing complex scenarios and precision measurement tasks.
Li Chune, Deng Rui
doaj   +1 more source

Inflammatory activity affects the accuracy of liver stiffness measurement by transient elastography but not by two‐dimensional shear wave elastography in non‐alcoholic fatty liver disease [PDF]

open access: hybrid, 2021
Yuly P. Mendoza   +8 more
openalex   +1 more source

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