Results 41 to 50 of about 1,601 (253)

Gemstone deposits of Serbia

open access: yesGeologica Carpathica, 2016
Gemstone minerals in Serbia have never been regarded as an interesting and significant resource. Nevertheless, more than 150 deposits and occurrences have been recorded and some of them preliminarily explored in the last 50 years.
Miladinović Zoran   +3 more
doaj   +1 more source

Deterministic Integration of Quantum Emitters and Optical Cavities in a Van Der Waals Crystal

open access: yesAdvanced Optical Materials, EarlyView.
The work demonstrates fabrication of Circular Bragg Grating (CBG) cavities with embedded emitters in hBN. The cavities are fabricated around a pre‐characterised quantum emitter. The integrated platform enables light matter interaction and access to brighter emitters and spins in hBN.
James Liddle‐Wesolowski   +8 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

Engineering Exciton g‐Factors With Light in Type‐II Heterostructures

open access: yesAdvanced Optical Materials, EarlyView.
All‐optical approaches have emerged as cutting‐edge alternatives for ultrafast, energy‐efficient, and spatially localized tuning and switching of material properties. In our work, we demonstrate how light intensity alone can be leveraged to engineer g‐factors from a single‐type of carrier in type‐II heterostructures through Coulomb‐induced wavefunction
G. M. Jacobsen   +9 more
wiley   +1 more source

Identifikasi Citra Batu Mulia dengan Menggunakan Metode Jaringan Saraf Tiruan Backpropagation

open access: yesJurnal Eksplora Informatika, 2019
Batuan mulia (gemstone) merupakan salah satu kekayaan alam yang dapat dijadikan perhiasan dan koleksi. Terdapat beberapa jenis batuan seperti ruby, sapphire, zamrud, topaz, kecubung, dan kalimaya.
Meylda Kurnia Emylia Putri
doaj   +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

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

open access: yesAdvanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang   +7 more
wiley   +1 more source

Color-Causing Mechanisms of Guatemala Jadeite Jade: Constraints from Spectroscopy and Chemical Compositions

open access: yesCrystals, 2023
The jadeite jade in Guatemala exerts remarkable commercial quality, which has attracted wide attention. Guatemalan jadeite jade displays a rich variety of colors; however, the color formation of this jadeite jade has not been systematically investigated ...
Ting Li   +6 more
doaj   +1 more source

A 3D Human Bone and Bone Marrow‐on‐a‐Chip Model for In Vitro Bone Remodeling and Immune Cell Maintenance

open access: yesAdvanced Science, EarlyView.
This study presents a human Bone (and Bone Marrow)‐on‐a‐Chip model based on native human bone scaffolds and autologous cells. Dynamic perfusion and sequential cell seeding replicate the physiological bone remodeling process in vitro, enabling the long‐term culture of functional, mature bone marrow immune subpopulations.
Nina Stelzer   +17 more
wiley   +1 more source

Chemoproteomic Identification of AKT2 as a Paclitaxel‐Binding Protein via C─C Bond‐Linked Probe PTX‐4 in Paclitaxel‐Resistant Breast Cancer

open access: yesAdvanced Science, EarlyView.
ABSTRACT Breast cancer remains one of the most prevalent malignancies among women, and taxane‐based chemotherapies such as paclitaxel and docetaxel are central to standard treatment regimens. However, drug resistance in breast cancer limits therapeutic efficacy and contributes to recurrence and metastasis.
Kai Wang   +7 more
wiley   +1 more source

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