Results 41 to 50 of about 3,574 (241)

Magical Objects, Magical Writing: Amulets Across the Ages

open access: yesMartor, 2023
This note focuses on recent discussions on gemstone amulets from Late Antiquity through insights offered in two contributions to the volume Textual Amulets from Antiquity to Early Modern Times: The Shape of Words (Theis and Vitellozzi 2022).
Hajnalka Tamás
doaj   +1 more source

Attitudes of gemstone distributors to value adding strategies of ruby production [PDF]

open access: yes, 2004
Over the centuries, gemstones have at times played a key role in the international trade. To date, they still play a significant role in economies of many countries, especially Thailand. Ruby, the red gemstone, one of the best known gemstones to ordinary
Tiangsoongnern, L., Vuori, T.
core  

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang   +9 more
wiley   +1 more source

Engineered Microvascular Model of the Blood–Brain–Tumor Barrier Reveals Endothelial Remodeling in Diffuse Midline Glioma

open access: yesAdvanced Healthcare Materials, EarlyView.
We developed a patient‐derived, functional microfluidic model of the diffuse midline glioma (DMG) blood–brain–tumor barrier (BBTB) comprised of endothelial cells, astrocytes, pericytes, and tumor cells. The system forms perfusable microvasculature, reveals the BBTB retains vascular integrity, identifies DMG‐specific transcriptomic changes distinct from
Kimberly R. Bennett   +7 more
wiley   +1 more source

Physical and psychological measures quantifying functional binocular vision

open access: yesMeasurement: Sensors, 2021
This study explores possibilities for productively studying and modelling vision using a probabilistic approach prioritizing the estimation and comparison of linear measures.
Maureen K. Powers   +1 more
doaj   +1 more source

2‐Deoxyglucose Dendrimer‐Enabled Niclosamide Delivery to FRβ‐Expressing Macrophages Alleviates Endometriosis Progression and Associated Hyperalgesia

open access: yesAdvanced Healthcare Materials, EarlyView.
A folic acid (FA)‐conjugated 2‐deoxyglucose dendrimer selectively targets FRβ+ macrophages in endometriotic lesions, enabling precise intracellular delivery of niclosamide. This nonhormonal nanomedicine enhances drug solubility, provides controlled intracellular release, suppresses lesion growth, reduces inflammation and pain, and establishes FRβ ...
Anubhav Dhull   +11 more
wiley   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

open access: yesAdvanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair   +3 more
wiley   +1 more source

The Holy Chalice of the Last Supper Venerated in Valencia, Spain: Answering Historic Questions to Pilgrims as a Basis of Fostering Cultural Tourism

open access: yesHeritage, 2023
The Cathedral of Valencia has kept an important relic since 1437: the Holy Chalice of the Last Supper. It consists of an agate cup, a gold stem, and a gemstone foot.
Manuel Zarzo
doaj   +1 more source

CD9+ B Cells Induce T Follicular Helper Cell Apoptosis to Regulate Germinal Center Regression

open access: yesAdvanced Science, EarlyView.
A unique subset of CD9+ B cells regulates germinal center B (GC‐B) cell regression by inducing T follicular helper (Tfh) cell apoptosis through multiple signaling pathways, such as ALCAM‐CD6. FOXP1 plays a key role in GC‐B cell differentiation. These findings clarify mechanisms of GC degeneration and termination and offer potential targets for adenoid ...
Wenjing Liao   +27 more
wiley   +1 more source

Gemological features of diaspore in sodra—Milas (mugla) region

open access: yesFrontiers in Earth Science, 2023
Diaspore, is related to bauxite in terms of its formation mechanism. Diaspore is one of the gemstone quality stones used in jewelry and jewelry making. It is possible to come across gemstones in various regions of the world.
Eyyüp Hikmet Kinaci, Alican Ozturk
doaj   +1 more source

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