Novel Coronavirus International Public Health Emergency: Guidance on Radiation Oncology Facility Operation.

Purpose: The current situation of coronavirus disease 2019 (COVID-19) is rapidly evolving. Radiation therapy facilities are places of concentrated patient interactions. Oncology patients with immunosuppression are at a higher risk for contracting severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and easily developing severe postinfection events during the SARS-CoV-2 outbreaks.

WO3 nanoparticles decorated core-shell TiC-C nanofiber arrays for high sensitive and non-enzymatic photoelectrochemical biosensing.

A photoelectrochemical biosensing platform based on a WO3 decorated highly conductive TiC-C NF electrode is fabricated and boasts a low detection limit of 1.12 × 10(-8) M (S/N = 3) and high sensitivity for glucose detection at a visible light irradiation density of 50 mW cm(-2).

Thermosensitive poly(N-isopropylacrylamide-co-glycidyl methacrylate) microgels for controlled drug release.

A new type of thermosensitive microgels with epoxy functional groups is designed and synthesized for drug delivery. The thermosensitive poly(N-isopropylacrylamide-co-glycidyl methacrylate) (designated as P(NIPAM-co-GMA)) microgels are prepared by an emulsifier-free emulsion polymerization method and the chemical composition of the copolymer is determined by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance ((1)H NMR). The lower critical solution temperature (LCST) of the microgels is 32°C based on the transmittance changes at 500 nm monitored by UV/visible spectrophotometry.

A common sequence-associated physicochemical feature for proteins of beta-trefoil family.

Different amino acid sequences can fold into similar tertiary structures but the reasons for it are not very clear. It has been suggested in the literature that these sequences may have some common features associated with them but the exact nature of such shared properties remains largely unknown. We studied a representative sample of proteins from the beta-trefoil family and observed that their amino acid sequences, despite being considerably divergent from each other, can be accounted for by matching to a repetition of three physicochemically similar segments.

Nonlinear analysis of correlations in Alu repeat sequences in DNA.

We report on a nonlinear analysis of deterministic structures in Alu repeats, one of the richest repetitive DNA sequences in the human genome. Alu repeats contain the recognition sites for the restriction endonuclease AluI, which is what gives them their name. Using the nonlinear prediction method developed in chaos theory, we find that all Alu repeats have novel deterministic structures and show strong nonlinear correlations that are absent from exon and intron sequences.