Results 71 to 80 of about 2,712 (288)

About gemstones

open access: yes
This study provides a comprehensive analysis of gemstones, focusing on their geological formation, exploration, mining practices, and socioeconomic and ethical issues surrounding the industry.
Ricardo Valls
core   +1 more source

Hypomethylation of GNA15 Promotes Pancreatic Ductal Adenocarcinoma Progression and Macrophage M2 Polarization via STAT3‐CXCL8 Axis

open access: yesAdvanced Science, EarlyView.
A schematic model summarizing GNA15's mechanism in mediating macrophage M2 polarization and Gemcitabine resistance. ABSTRACT The complexity of pancreatic ductal adenocarcinoma (PDAC) progression, coupled with the lack of effective immunotherapy, underscores the imperative to deepen our understanding of its mechanisms and identify suitable immune ...
Weihui Guo   +8 more
wiley   +1 more source

Fingerprinting of ruby and sapphire gemstones through Fourier-transform infrared (FTIR) methodologies [PDF]

open access: yesEuropean Journal of Mineralogy
Gemstones have significant economic, cultural, and artistic value. Advances in the treatment and production of synthetic gemstones create the need for more precise identification methods to distinguish natural stones from their synthetic and treated ...
A. Soares de Sousa   +4 more
doaj   +1 more source

Targeting Tex10 Overcomes Oxaliplatin Resistance by Competitively Disrupting the Non‐Canonical BAF Complex in Colorectal Cancer

open access: yesAdvanced Science, EarlyView.
This study reveals that Tex10 drives oxaliplatin resistance in colorectal cancer by competitively binding BRD9 to disrupt the ncBAF complex, thereby suppressing AMBRA1 transcription and ULK1‐mediated autophagy. Gemcitabine is identified as a direct Tex10 inhibitor that restores autophagy and overcomes resistance.
Ping Xu   +9 more
wiley   +1 more source

Rendering of Gemstones

open access: yes, 2012
The distinctive appearance of gemstones is caused by the way light reflects and refracts multiple times inside of them. The goal of this thesis is to design and implement an application for photorealistic rendering of gems.
Krtek, Lukáš
core   +1 more source

Tumor‐Derived Exosomal circAP2B1 Induces M2 Macrophage Polarization by Enhancing Mitochondrial Homeostasis to Promote Esophageal Squamous Cell Carcinoma Progression

open access: yesAdvanced Science, EarlyView.
ESCC‐derived exosomal circAP2B1 promotes tumor progression by reprogramming mitochondrial metabolism via the ESRRA/KPNA1/MFN2 axis to induce M2 polarization of macrophages. ABSTRACT Esophageal squamous cell carcinoma (ESCC) remodels the immunosuppressive tumor microenvironment via exosome‐mediated intercellular communication.
Yiru Wang   +5 more
wiley   +1 more source

Introdução aos territórios produtores de gemas: o caso brasileiro do nordeste de Minas Gerais

open access: yesConfins
The purpose of this chronicle is to present activities and actors involved in gemstone exploitation in the Northeastern part of the brazilian state of Minas Gerais. Considered to be one of the largest precious stones reserve in the world, the area offers
Aurélien Reys
doaj   +1 more source

Most-Cherished Gemstones in the Medieval Arab World

open access: yes, 2017
In the medieval Arab world, gemstones were used as ornaments, set in jewellery, seals, and amulets, and also were investments and status symbols. As a result of the Arab conquests and their access to new regions, the distribution and use of gemstones ...
ZOHAR AMAR, EFRAIM LEV
core   +1 more source

Loss of SHP1 in Spinal Astrocytes Triggers T‐Lymphocyte Infiltration and Nociceptive Hypersensitivity

open access: yesAdvanced Science, EarlyView.
Astrocyte‐specific SHP1 deletion disrupts astrocyte–vascular interactions and compromises BBB integrity while enhancing STAT1‐dependent CXCL10 expression. These changes synergistically promote peripheral CD4+ and CD8+ T‐cell infiltration into the SDH. The infiltrating T cells secrete IFN‐γ, which in turn activates microglia.
Lan‐Xing Yi   +7 more
wiley   +1 more source

Gestational Hypoxia Disrupts Medial Ganglionic Eminence Progenitor Dynamics and Interneuron Development in Schizophrenia

open access: yesAdvanced Science, EarlyView.
FES‐derived MGE spheroids exhibit progenitor‐stage alterations in developmental trajectory and hypoxia‐responsive transcriptional programs, followed by functional disruption. Gestational hypoxia recapitulates impaired progenitor proliferation, shortened cell‐cycle progression, interneuron developmental abnormalities, and schizophrenia‐like behaviors in
Peiyan Ni   +17 more
wiley   +1 more source

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