Metaphire guillelmi exhibited predominant capacity of arsenic efflux.

Earthworm could regulate their body concentration of arsenic via storage or excretion, and the ability of As efflux among different earthworms is not consistent. Here, whole and semi As exposure patterns with 0-10-30-60-100 mg kg exposure concentrations were set to characterize the As efflux in geophagous earthworm, Metaphire guillelmi. Cast As (As-C) and earthworms' antioxidative responses were monitored to explore the efflux mechanisms under 30 mg kg As-spiked soil (As30), besides, As concentration in earthworm tissue after egestion and dissection depurations were compared.

Concentration-dependent mechanisms of fluoranthene uptake by ryegrass.

Fluoranthene (Flu) uptake by plants is affected by plant growth and environmental concentration. Although plant growth processes, including substance synthesis and antioxidant enzyme activities, have been reported to regulate Flu uptake, their contributions have been poorly evaluated. Moreover, the effect of Flu concentration is little known.

The Effect of Pilates Exercise Nursing Combined with Communication Standard-Reaching Theory Nursing and Pelvic Floor Muscle Training on Bladder Function and Family Function of Patients after Cervical Cancer Surgery.

Objective: To explore the effect of Pilates exercise nursing combined with nursing based on the theory of communication compliance and pelvic floor muscle training on bladder function and family function of patients after cervical cancer surgery.

Methods: The medical records of 96 postoperative cervical cancer patients treated in our hospital from November 2019 to May 2021 were selected as retrospective research objects and were divided into observation group and control group with 48 cases each according to the digital table method. The control group received nursing care based on the theory of communication compliance and pelvic floor muscle training, and the observation group received Pilates exercise therapy nursing on the basis of the control group.

Remediation of polycyclic aromatic hydrocarbons by sulfate radical advanced oxidation: Evaluation of efficiency and ecological impact.

Remediation of polycyclic aromatic hydrocarbon (PAH) contamination in soil remains expensive and difficult. Sulfate radical advanced oxidation processes (SR-AOPs) can be used for in situ PAH oxidation but their efficiency and ecological impacts require evaluation. Here, we tested the remediation efficiency and ecological impacts of an SR-AOP combining sodium persulfate and ferrous sulfate (FS), the FS SR-AOP with the chelating agent citric acid (FS+CA), and the FS SR-AOP with chelating agent and the surfactant IGEPALCA-720 (FS+CA+IG) compared with natural attenuation (control, CK).

SVEEVA descriptor application to peptide QSAR.

A new descriptor, SVEEVA (principal component scores vector of electronic eigenvalue descriptors), was derived from principal component analysis (PCA) of a matrix of 220 electronic eigenvalue descriptors of coded amino acids. SVEEVA scales were then applied in three panels of peptide quantitative structure-activity relationship (QSAR) that were modeled by partial least squares regression (PLS). The obtained models with the correlation coefficient (R²(cum), cross-validation correlation coefficient (Q²(LOO) were 0.