Managing microbial sulfur disproportionation for optimal sulfur autotrophic denitrification in a pilot-scale elemental sulfur packed-bed bioreactor.

Elemental sulfur packed-bed (SPB) bioreactors for autotrophic denitrification have gained more attention in wastewater treatment due to their organic carbon-free operation, low operating cost, and minimal carbon emissions. However, the rapid development of microbial S-disproportionation (MSD) in SPB reactor during deep denitrification poses a significant drawback to this new technology. MSD, the process in which sulfur is used as both an electron donor and acceptor by bacteria, plays a crucial role in the microbial-driven sulfur cycle but remains poorly understood in wastewater treatment setups.

Facet Engineering-Induced Construction of NiP/ZnInS Heterostructures for Boosted Photocatalytic CO Reduction.

Facet engineering was realized to enhance the CO photoreduction performance of the NiP/ZnInS heterostructure, in which the commonly exposed (1 0 2) face of ZnInS was converted to the (1 0 1) face due to the unique properties of the phosphide. The variation in the crystal plane strengthened the intense interfacial contact between NiP and ZnInS, resulting in the promotion of utilization and absorption efficiency for incident light and boosting the surface reaction rate. Combined with the significant metallicity of NiP, inhibited recombination and strengthened transfer efficiency were achieved, leading to an obvious enhancement of photoreduction activity over NiP/ZnInS compared to pure samples.

Response of sulfur-metabolizing biofilm to external sulfide in element sulfur-based denitrification packed-bed reactor.

Dosing sulfide into the sulfur-packed-bed (SPB) has great potential to enhance the denitrification efficiency by providing compensatory electron donors, however, the response of sulfur-metabolizing biofilm to various sulfide dosages has never been investigated. In this study, the SPB reactor was carried out with increasing sulfide dosages by 3.6 kg/m/d, presenting a decreasing effluent nitrate from 14.

Effects of dietary structure on the incidence of gestational diabetes mellitus and macrosomia.

Objectives: To explore the relationship between dietary structure and the incidence of gestational diabetes mellitus and macrosomia.

Material And Methods: In this retrospective study, the diet records of pregnant women admitted to the Sixth People's Hospital affiliated to Shanghai Jiaotong University between August 2017 and August 2018 were collected with the approval of the local ethics committee. Corresponding medical and clinical information of pregnant women were obtained from the medical system.

Thiosulfate as external electron donor accelerating denitrification at low temperature condition in S-based autotrophic denitrification biofilter.

This study was carried out to determine the inhibition of low temperature on the performance of S-based autotrophic denitrification (S-SAD) biofilter, and proposed to enhance the nitrate removal efficiency with thiosulfate as external electron donor. With the decline of temperature from 30 °C to 10 °C at 0.25 h of empty bed contact time (EBCT), the nitrate removal rate presented a logarithmical drop, and the effluent nitrate dramatically increased from 9.

Mitigating nitrite accumulation during S-based autotrophic denitrification: Balancing nitrate-nitrite reduction rate with thiosulfate as external electron donor.

This study was carried out to determine the effect of influent nitrate loading on nitrite accumulation during elemental-sulfur based denitrification process, and proposed to enhance the nitrogen removal efficiency by mitigating nitrite accumulation with thiosulfate as external electron donor. Along with increasing the nitrate influent loading (from 0.09 kg N/m/d to 1.

MiR-628-5p decreases the tumorigenicity of epithelial ovarian cancer cells by targeting at FGFR2.

Micro RNAs (miRNAs) are small non-coding RNAs which are 19-24 nucleotides in length. MiRNAs play a vital role in the whole process of tumour development, but how they influence the tumourigenecity of epithelial ovarian cancer (EOC)cells is rarely researched. In our study, it was verified that miR-628-5p decreased the stem like cell percentage of EOC cells by inducing their apoptosis.

Advanced glycation end-product (AGE) induces apoptosis in human retinal ARPE-19 cells via promoting mitochondrial dysfunction and activating the Fas-FasL signaling.

Advanced glycation end-products (AGEs) are extremely accumulated in the retinal vascular and epithelial cells of diabetes mellitus (DM) patients, particularly with diabetic retinopathy (DR). To elucidate the pathogenesis of the AGE-induced toxicity to retinal epithelial cells, we investigated the role of Fas-Fas ligand (FasL) signaling and mitochondrial dysfunction in the AGE-induced apoptosis. Results demonstrated that the AGE-BSA- induced apoptosis of retinal ARPE-19 cells.