Results 61 to 70 of about 11,945,723 (183)
ABSTRACT Ulcerative colitis (UC) is a chronic inflammatory disease of the colon with limited effectiveness and safety of current drug therapies. Betulinic acid (BA) is a naturally occurring pentacyclic triterpenoid present in traditional Chinese medicines used clinically as retention enemas for UC, but its direct effects and mechanisms remain unclear ...
Lina Dong +7 more
wiley +1 more source
Geophysical and astronomical models applied in the analysis of very long baseline interferometry [PDF]
Very long baseline interferometry presents an opportunity to measure at the centimeter level such geodetic parameters as baseline length and instantaneous pole position.
Ma, C., Ryan, J. W., Schupler, B. R.
core
VLBI Diagnostics of Off-axis Jets in Radio Flares of Tidal Disruption Events
The origin of late-time radio flares in tidal disruption events remains unclear. In particular, the peculiar radio flare observed in AT2018hyz has motivated two leading scenarios: a delayed outflow launched ∼1000 days after discovery, or an off-axis ...
Tatsuya Matsumoto
doaj +1 more source
Chemical and Biological Determinants of PEG‐Lipid Shedding From Therapeutic Nanoparticles
PEG‐lipids play a central role in governing lipid nanoparticle stability, targeting, and function. However, PEG‐lipids can “shed” from the nanoparticle surface in biological environments, with the extent and kinetics of shedding influenced by chemical and biological factors.
Ethan P. Cisneros +2 more
wiley +1 more source
Very Long Baseline Interferometry Applied to Polar Motion, Relativity and Geodesy [PDF]
The causes and effects of diurnal polar motion are described. An algorithm is developed for modeling the effects on very long baseline interferometry observables.
Ma, C.
core
This work summarizes a program intended to unify three burgeoning branches of the high-energy astrophysics of relativistic jets: general relativistic magnetohydrodynamic (GRMHD) simulations of ever-increasing dynamical range, the microphysical theory of ...
Richard Anantua +2 more
doaj +1 more source
ABSTRACT Objectives To evaluate the cleaning efficacy, quantitative and qualitative surface modifications of titanium (Ti) and zirconia (Zr) abutments following instrumentation with twelve mechanical instrumentation modalities. Materials and Methods Twenty‐four Ti and twenty‐four Zr abutments were divided by marginal grooves into 36 test and 12 control
Marina Salah Kamel +3 more
wiley +1 more source
Multifrequency Analysis of Favored Models for the Messier 87* Accretion Flow
The polarized images of the supermassive black hole Messier 87* (M87*) produced by the Event Horizon Telescope (EHT) provide a direct view of the near-horizon emission from a black hole accretion and jet system.
Daniel C. M. Palumbo +2 more
doaj +1 more source
Hyperspectral tomographic diffractive microscopy: Development and applications
Abstract Tomographic Diffractive Microscopy (TDM) provides label‐free three‐dimensional imaging of transparent samples with resolution surpassing confocal limits. At IRIMAS, successive instrumental developments since 2009 have enhanced TDM capabilities through transmission, reflection, isotropic, polarisation‐sensitive, and dual‐view configurations ...
Leonardo Pestana Legori +4 more
wiley +1 more source
Very long baseline interferometry astrometry of PSR B1257+12, a pulsar with a planetary system
An astrometry project on PSR B1257+12, a millisecond pulsar with a planetary system, has been carried out with the Very Long Baseline Array and the European Very Long Baseline Interferometry (VLBI) Network at the central frequencies of 1465 and 1540 MHz,
Alef, Walter +5 more
core

