Results 61 to 70 of about 222,262 (199)

Alteration Alteration, Mineralization and Geochemistry of Metamorphic Rocks Hosted Hydrothermal Gold Deposit at Rumbia Mountains, Bombana Regency, Southeast Sulawesi, Indonesia

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2019
In Indonesia, gold is commonly mined from porphyry, epithermal and skarn type deposits that are commonly found in volcanic/magmatic belts. However, were recently numerous gold prospects discovered in association with metamorphic rocks.
Hasria Hasria   +2 more
doaj   +1 more source

Puerarin‑Loaded pH‑Responsive ZIF‑90 Nanoparticles Ameliorate Osteoporosis via Enhancing H3K18 Lactylation and Suppressing Aberrant Osteoclast Activation

open access: yesAdvanced Science, EarlyView.
Schematic illustration of the mechanism by which ZIF‐90@PU alleviates osteoporosis via H3K18la‐mediated NFATc1 pathway suppression. ABSTRACT Osteoporosis is characterized by dysregulated osteoclast activity, leading to excessive bone resorption and structural damage.
Jiajia Lu   +5 more
wiley   +1 more source

Oral Recombinant Human Collagen III Protects Gastric Mucosa via G‐Quadruplex‐Mediated Activation of the Pla2g4a‐Prostaglandin Axis

open access: yesAdvanced Science, EarlyView.
Orally administered recombinant human type III collagen protects the gastric mucosa from ethanol‐induced injury by coordinating redox homeostasis, epithelial barrier repair, and arachidonic acid–prostaglandin metabolism. Gastric digestion releases the pentapeptide GPAEF, which interacts with the Pla2g4a promoter G‐quadruplex in a structure‐dependent ...
Xinyue Lan   +14 more
wiley   +1 more source

Safety and Feasibility of Magnetic Separation‐Based Blood Purification

open access: yesAdvanced NanoBiomed Research, EarlyView.
We present the preclinical biological safety and translational feasibility of a magnetic nanoparticle‐based extracorporeal blood purification platform for removal of disease‐causing blood factors. ISO 10993‐compliant studies and exaggerated worst‐case exposure models demonstrate efficient nanoparticle extraction (≥99.9%), favorable biocompatibility ...
Carlos A. Mora   +11 more
wiley   +1 more source

Glycopolymeric nanoparticles transported by activated platelets protect ischemic myocardium by alleviating PANoptosis through targeting macrophage Dectin‐1

open access: yesBMEMat, EarlyView.
NP‐SF, designed to target macrophage Dectin‐1 and activated platelets, selectively accumulated in ischemic myocardium, where it was taken up by macrophages after platelet hitchhiking. By inhibiting NLRC5‐related PANoptosis, NP‐SF significantly attenuated pathological damage, and effectively preserved cardiac function in a murine ischemia–reperfusion ...
Guanye Yu   +13 more
wiley   +1 more source

Hyperbranched poly‐L‐lysine surface‐engineered bioprosthetic heart valves with anti‐calcification, anti‐infection, and durability

open access: yesBMEMat, EarlyView.
The challenges of bioprosthetic heart valves (BHV) with respect to calcification, infection, and poor durability are tackled by surface engineering of hyperbranched poly‐L‐lysine (HBPL), providing a translational solution to improve long‐term valve performance.
Pai Peng   +7 more
wiley   +1 more source

formation conditions OF AU-bearing AND BARREN quartz VEINS of the KRASNoe gold DEPOSIT, EASTERN SIBERIA: FLUID INCLUSION and isotopic DATA [PDF]

open access: yesМинералогия, 2019
The paper presents the results of fluid inclusion study of auriferous and barren quartz veins of the Krasnoe gold deposit situated in the Bodaybo area (Irkutsk oblast) using thermo- and criometry, Raman spectroscopy and gas chromatography. The auriferous
N.N. Ankusheva   +3 more
doaj  

Quartz veins in shear zone

open access: yes, 1990
Quartz veins in shear zone, limestone and slate of Sangerville Formation. Possible fault zone. View to E./= / \u3e Project Name: Marvinney Historical Photoshttps://digitalmaine.com/mgs_geologic_field_photos/37032/thumbnail ...
Marvinney, Robert G
core  

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

open access: yesDeep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei   +4 more
wiley   +1 more source

Orange with sparkling white veins (possibly quartz stone) mortar American circa 1880 with Wedgwood porcelain pestle.

open access: yes, 1880
Orange with sparkling white veins (possibly quartz stone) mortar American circa 1880 with Wedgwood porcelain pestle. 1 7/8" height and 2 7/8" diameter and pestle is 5 3/8" length.circa 1880Mortar Height, Diameter: 4.55cm, 7.5cm (1.77in, 2.93in)Pestle ...

core  

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