Environmental Impact of Xenobiotic Aromatic Compounds and Their Biodegradation Potential in .

Xenobiotic aromatic compounds are the raw materials of necessities in modern life, such as plastics, pesticides, and antibiotics. To meet the global requirements, their production and consumption have continually increased, and thus, the vast amount of waste generated results in prominent environmental pollution. Fortunately, some microorganisms (e.

Chemical signaling in biofilm-mediated biofouling.

Biofouling is the undesirable accumulation of living organisms and their metabolites on submerged surfaces. Biofouling begins with adhesion of biomacromolecules and/or microorganisms and can lead to the subsequent formation of biofilms that are predominantly regulated by chemical signals, such as cyclic dinucleotides and quorum-sensing molecules. Biofilms typically release chemical cues that recruit or repel other invertebrate larvae and algal spores.

Short-term PET-derived kinetic estimation for the diagnosis of hepatocellular carcinoma: a combination of the maximum-slope method and dual-input three-compartment model.

Background: Kinetic estimation provides fitted parameters related to blood flow perfusion and fluorine-18-fluorodeoxyglucose (F-FDG) transport and intracellular metabolism to characterize hepatocellular carcinoma (HCC) but usually requires 60 min or more for dynamic PET, which is time-consuming and impractical in a busy clinical setting and has poor patient tolerance.

Methods: This study preliminarily evaluated the equivalence of liver kinetic estimation between short-term (5-min dynamic data supplemented with 1-min static data at 60 min postinjection) and fully 60-min dynamic protocols and whether short-term F-FDG PET-derived kinetic parameters using a three-compartment model can be used to discriminate HCC from the background liver tissue. Then, we proposed a combined model, a combination of the maximum-slope method and a three-compartment model, to improve kinetic estimation.

A PVA/LiCl/PEO interpenetrating composite electrolyte with a three-dimensional dual-network for all-solid-state flexible aluminum-air batteries.

Aluminum-air batteries are promising electronic power sources because of their low cost and high energy density. However, traditional aluminum-air batteries are greatly restricted from being used in the field of flexible electronics due to the rigid battery structure, and the irreversible corrosion of the anode by the alkaline electrolyte, which greatly reduces the battery life. To address these issues, a three-dimensional dual-network interpenetrating structure PVA/LiCl/PEO composite gel polymer electrolyte (GPE) is proposed.

Feasibility of perfusion and early-uptake F-FDG PET/CT in primary hepatocellular carcinoma: a dual-input dual-compartment uptake model.

Purpose: PET enables a concurrent evaluation of perfusion status and metabolic activity. We aimed to evaluate the feasibility of perfusion and early-uptake F-FDG PET/CT in hepatocellular carcinoma (HCC) using a dual-input dual-compartment uptake model.

Materials And Methods: Data from 5 min dynamic PET/CT and conventional PET/CT scans were retrospectively collected from 17 pathologically diagnosed HCCs.

[Monthly deworming in dogs for echinococcosis control in two counties of Xinjiang Uygur Autonomous Region].

Objective: To verify the application and effectiveness of monthly deworming for all dogs in the control of Echinococcus granulosus infection.

Methods: Baited praziquantel was used to treat all registered dogs monthly by hydatid disease control officers at village level and all stray (unowned) dogs were eliminated in the counties of Hutubi and Wensu in 1987-1990 and 1990-1994 respectively. Prevalence of echinococcosis in dogs and sheep was recorded yearly.