Results 61 to 70 of about 9,212 (287)

Laser‐Synthesized Amorphous PdSe2‐x Nanoparticles: A Defect‐Rich Platform for High‐Efficiency SERS, Photocatalysis, and Photothermal Conversion

open access: yesAdvanced Materials Interfaces, EarlyView.
Using femtosecond ablation, we show that an ordered, stoichiometric crystalline PdSe2 target can be controllably converted into a stable, disordered, non‐stoichiometric, and highly functional amorphous nanomaterial, PdSe2−x${\rm PdSe}_{2-x}$. The obtained nanoparticles offer significant advantages over conventional planar plasmon‐free substrates due to
Andrei Ushkov   +18 more
wiley   +1 more source

Surface‐Associated Proteins on Extracellular Vesicles Remodel the Tumor Microenvironment by Potentiating TGF‐β Signaling in a Contact‐Dependent Manner

open access: yesAdvanced Science, EarlyView.
Extracellular vesicles (EVs) released from TGF‐β‐activated CAFs are enriched with ECM proteins such as TSG6 and THBS1, which facilitate their binding to recipient cell membranes. This EV–cell interaction promotes the clustering of CD44 and TGF‐β receptors on the target cell surface, thereby potentiating TGF‐β signaling activity. This study highlights a
Chao Li   +7 more
wiley   +1 more source

Increased Blood Flow and Tendon Swelling Precedes Vascular Expansion and Tissue Matrix Changes In Early Human Tendinopathy: A Potential Window for Superior Treatment Response

open access: yesAdvanced Science, EarlyView.
Human participants with early‐ or chronic‐stage tendinopathy and healthy controls are investigated using ultrasound Doppler, 3T and 7T MRI, and tendon biopsies. Tendon swelling and hyperperfusion are evident early, while vascular growth and extracellular matrix changes are most pronounced in chronic tendinopathy. Early intervention may provide superior
Max F. R. Merkel   +11 more
wiley   +1 more source

Alternative Reconstruction of a First Century AD Roman Cavalry Saddle

open access: yesEXARC Journal, 2021
The reconstruction of a First Century AD Roman cavalry saddle has not been investigated since Peter Connolly introduced his ideas of a wooden tree saddle in 1984, based on the evidence and dimensions provided by archaeological finds of leather saddle ...
Moira Watson
doaj  

Was There a Pre-Roman Occupation in Coimbra, Portugal? The Contribution of Rua Fernandes Thomaz, 72–74 for Understanding Occupation of the Territory of Aeminium during the Transition from the Iron Age to the Roman Era

open access: yesHeritage, 2019
Iron Age studies are scarce for the city of Coimbra, besides the findings from the Machado Castro Museum, and therefore this intervention has revealed an important heritage collection.
Jorge Pinho, Susana Henriques
doaj   +1 more source

Medications and their use in the Graeco-Roman era

open access: yesSuid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie, 2007
As from the 6th century BC Graeco-Roman medical therapy comprised three components, viz. diet and healthy lifestyle (regimen), surgery and medicaments (pharmacotherapy), of which the latter was the oldest. Although the Corpus Hippocraticum (5th century BC), with minor Egyptian influence, contained no text of medicines as such, and seemed to prefer ...
François Retief, Louise Cilliers
openaire   +1 more source

Climate Change Agricultural Comparative Advantage and the US Trade Balance

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Current science indicates that warming and elevated atmospheric CO2 will have ambiguous results for crop productivity depending on crop type and geographic location, whereas increased heat stress makes livestock and human labor less productive.
Elizabeth A. Fraysse   +2 more
wiley   +1 more source

Rubobostes' Feast

open access: yesEXARC Journal, 2019
In Romania, in recent years, numerous cultural events and projects have been developed to reconstruct some aspects of everyday life from the past, or to promote archaeological sites (Ardeleanu, 2012, pp.72-73).
Marius Ardeleanu
doaj  

Roman Bone Artefacts – First Steps Towards a New Approach

open access: yesEXARC Journal, 2021
To date, archaeologists often use a typological approach to assess the functions of bone artefacts from the Roman period. In some of these assigned typological groups, certain artefacts do not have a clear definition.
Hildegard Müller   +2 more
doaj  

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