Publications by authors named "A G Rybkin"
A series of nanoparticles (NPs) with a hydrodynamic radius from 20 to 100 nm in PBS was developed over the solubilization of hydrophobic dye methyl pheophorbide (chlorin e derivative) by amphiphilic copolymers of N-vinylpyrrolidone with (di)methacrylates. Photophysical properties and biological activity of the NPs aqueous solution were studied. It was found that the dye encapsulated in the copolymers is in an aggregated state.
View Article and Find Full Text PDFWe show that graphene can be magnetized by coupling to a ferromagnetic Co film through a Au monolayer. The presence of dislocation loops under graphene leads to a ferrimagnetic ordering of moments in the two C sublattices. It is shown that the band gap of ∼80 meV in the K[over ¯] point has a magnetic nature and exists for ferrimagnetic ordering.
View Article and Find Full Text PDFObjective: Limited data is available to guide non-surgical management of Stage T4 larynx and hypopharynx cancer patients who have inoperable disease or refuse surgery. We aim to review the nonoperative management of T4 laryngeal and hypopharyngeal cancer and report the long-term therapeutic and functional outcomes.
Methods: We reviewed the nonoperative management of T4 laryngeal (n = 44) and hypopharyngeal (n = 53) cancer from 1997 to 2015 and performed a univariate analysis (UVA).
Article Synopsis
- The study explores the effects of V doping in the semiconductor BiTeI, which is significant for spintronics and quantum computing due to its strong spin-orbit coupling and ferromagnetic properties.
- Using angle-resolved photoemission spectroscopy (ARPES), it is found that the Kramers point (KP) gap varies non-monotonically with V concentration, increasing up to 3% doping before decreasing again.
- The research indicates that the change in KP gap and saturation magnetisation is linked to the antiferromagnetic coupling of magnetic impurities at higher doping levels, affecting the overall magnetic moment and gap characteristics.
Background: Numerous studies and guidelines suggest an outcome detriment from radiation treatment breaks (rTBs) and the need for compensatory dosing in patients with head and neck cancer.
Methods: In a consecutive cohort of 521 patients with oropharyngeal squamous cell carcinoma (OPSCC), we investigated the impact of rTBs and prolongation of overall treatment time (OTT) on OS, DFS, LRC, and cancer recurrence using competing risk and multivariate analyses.
Results: Neither OTT prolongation by ≤2 days nor rTBs of ≤3 days were associated with detriments to clinical outcomes.