Cobalt doped g-CN activated peroxymonosulfate for organic pollutant degradation: Alterations in cobalt species and reactive oxygen species.

Cobalt-based materials are promising catalysts for activating peroxymonosulfate (PMS) to degrade organic pollutants. Among various cobalt-based catalysts, the alteration in cobalt species and the reactive species produced are not fully understood. Herein, four materials were synthesized by controlling synthesis methods and doping of g-CN to regulate cobalt species.

Bee colonies map the short- and medium-chain chlorinated paraffin contamination from the apiary environment.

Chlorinated paraffins (CPs) are industrial chemicals that have potential adverse effects in the environment and on human health. This study investigated CPs in apiary environment, honeybees, and bee products from two rural areas of Beijing, China. The median concentrations of short-chain CPs (SCCPs) and medium-chain CPs (MCCPs) were 22 and 1.

Inhibitory effects and mechanisms of insoluble humic acids on internal phosphorus release from the sediments.

Release of phosphorus (P) from the sediments plays a critical role in the eutrophication of aquatic environments. Humic acids (HA), as the main form of carbon storage in the sediments, has essential impacts on the biogeochemical cycle of phosphorus in aquatic systems. Nevertheless, previous studies mainly concentrated on the competitive adsorption of HA solution and P on metal oxides and soils, with little attention paid to the effects of insoluble humic acids (IHA) on P sorption by and release from the sediments.

Inhibition of LPS‑induced NLRP3 inflammasome activation by stem cell‑conditioned culture media in human gingival epithelial cells.

Interleukin (IL)‑1β is a pathogenic factor associated with the destruction of periodontal tissue in periodontitis. IL‑1β processing is regulated by cytosolic machinery known as the inflammasome. infection and lipopolysaccharide (LPS) have an important role in the destruction of periodontal tissue in periodontitis.

Dispersed cobalt embedded nitrogen-rich carbon framework activates peroxymonosulfate for carbamazepine degradation: cobalt leaching restriction and mechanism investigation.

Metal leaching is a key issue in cobalt-based catalysts/PMS systems, which results in the decline of catalytic ability and serious secondary pollution. Hence, a nitrogen-rich carbon framework with cobalt node (Co-NC-920) with low cobalt leaching was synthesized based on zeolite imidazole framework (ZIF) and g-CN to activate peroxymonosulfate (PMS) for the degradation of carbamazepine (CBZ). With the restriction of nitrogen-rich carbon framework, cobalt can disperse better and form stable cobalt-nitrogen bonds, thus only 0.

[Clinical characteristics of oral and maxillofacial space infection in patients with different ages].

Purpose: To analyze the general information,clinical symptoms, etiology of infection, and complications of oral and maxillofacial space infection in patients with different ages, in order to provide references for prevention of complications.

Methods: Three hundred and forty-eight patients with oral and maxillofacial space infection treated in the Oncology Department of Oral and Maxillofacial Surgery of the First Affiliated Hospital of Xinjiang Medical University were retrospectively analyzed from March 2007 to Feburary 2017. Statistical analysis was performed with SPSS 20.