Results 41 to 50 of about 255,454 (330)

Assessment of skin in patients with systemic sclerosis using high‐frequency ultrasound and shear wave elastography: A comparative study with histology, molecular and clinical parameters

open access: yesArthritis Care &Research, Accepted Article.
Objective Ultrasound (US) has been proposed as a potential tool for assessing skin fibrosis in systemic sclerosis (SSc). However, a large‐scale comparison of US‐based assessment with histological markers of skin fibrosis has not been reported. We evaluated the US‐based skin assessments for their face validity (differentiation between involved SSc and ...
Ruhani Desai   +12 more
wiley   +1 more source

Investigating Technological Changes in Copper-Based Metals Using Portable XRF Analysis. A Case Study in Sicily

open access: yesOpen Archaeology, 2017
The introduction of copper-based metals in Sicily appears to have been a particularly late and slow process. A program of pXRF analyses on early metals in Sicily has revealed the use of mostly copper, and a very late introduction of tin.
Vianello Andrea, Tykot Robert H.
doaj   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

open access: yesAdvanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo   +3 more
wiley   +1 more source

Une coopération franco-chinoise : les fouilles du site de Gongying

open access: yesArchéopages, 2010
Chinese archaeology developed independently of Western influence. China's opening-up to international trade also produced changes in how Chinese archaeologists went about their work as they were able to observe the practices of their Western colleagues ...
Alain Thote, Karine Michel
doaj   +1 more source

Cloth cultures in prehistoric Europe: the Bronze Age evidence from Hallstatt [PDF]

open access: yes
Cloth cultures in prehistoric Europe is a post-doctoral fellowship project awarded to Susanna Harris by the British Academy from 2008-2011. The aim of the project is to bring together and examine evidence for textiles and animal skins in prehistoric ...
Grömer, Karina   +3 more
core   +1 more source

Application of Image Analysis for the Identification of Prehistoric Ceramic Production Technologies in the North Caucasus (Russia, Bronze/Iron Age) [PDF]

open access: yes, 2019
The recent advances in microscopy and scanning techniques enabled the image analysis of archaeological objects in a high resolution. From the direct measurements in images, shapes and related parameters of the structural elements of interest can be ...
Milke, Ralf   +3 more
core   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

open access: yesAdvanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt   +2 more
wiley   +1 more source

CONCERNING BRONZE AGE FUNERARY FINDS FROM MEDIAŞ

open access: yesJournal of Ancient History and Archaeology, 2023
The paper discusses certain funerary finds, especially some possible ones, belonging to the Bronze Age, from the Mediaş-“Hăşmaş” site. Besides a Wietenberg cremation grave, there are arguments for including other finds among those with a Wietenberg ...
Cristian Ioan POPA
doaj   +1 more source

Heat strengthening of lead-tin bronze alloyed with nickel [PDF]

open access: yes, 2001
Investigate the process of thermal hardening of bronze without heat treatment.
Block, Frank   +3 more
core   +1 more source

Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula   +1 more
wiley   +1 more source

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