Results 71 to 80 of about 43,948 (300)

Performance of three kinds of nitrification sludge

工程科学与技术, 2009
:Batch experiments were carried out to study the performances of three kinds of nitrification sludge of seeding sludge (S1) and nitrification sludge (S2 and S3) taken from a bioreactor run with inorganic or organic ammonia containing wastewater for a ...
Hu An-Hui, Zheng Ping, Hu Bao-Lan
doaj  

DNA- and RNA-SIP Reveal Nitrospira spp. as Key Drivers of Nitrification in Groundwater-Fed Biofilters

mBio, 2019
Nitrification, the oxidative process converting ammonia to nitrite and nitrate, is driven by microbes and plays a central role in the global nitrogen cycle.
Arda Gülay, S. Jane Fowler, Karolina Tatari, Bo Thamdrup, Hans-Jørgen Albrechtsen, Waleed Abu Al-Soud, Søren J. Sørensen, Barth F. Smets   +7 more
doaj   +1 more source

Natural Products Inspired Scaffold Diversification Leads to Unnatural Molecular Warhead and Covalent Strategy to Modulating Protein Function through Electrophilic Bromine Transfer

Advanced Science, EarlyView.
We report a new thiolate‐reactive α,α‐gem‐dibromo lactam warhead that activates transcription factor Nrf2 and demonstrates anti‐inflammatory activities, which have implications in cancer, neurodegeneration, and cardiovascular diseases. RNA‐seq illuminated detailed transcriptional profiles, and chemical reactions with cysteine‐containing compounds ...
Beau R. Brummel, Sofia Kokkaliari, Qiwen Gao, Jinjing Chen, Larissa Costa de Almeida, Srinivasarao Tenneti, Derek A. Leas, Eli Levit, Lewis S. Alexander, Khalil A. Abboud, Pingrong Wei, Michael D. Cameron, James R. Rocca, Ranjala Ratnayake, Donna D. Zhang, Hendrik Luesch, Robert W. Huigens III   +16 more
wiley   +1 more source

Comparative Genomics of Candidatus Methylomirabilis Species and Description of Ca. Methylomirabilis Lanthanidiphila

Frontiers in Microbiology, 2018
Methane is a potent greenhouse gas, which can be converted by microorganism at the expense of oxygen, nitrate, nitrite, metal-oxides or sulfate. The bacterium ‘Candidatus Methylomirabilis oxyfera,’ a member of the NC10 phylum, is capable of nitrite ...
Wouter Versantvoort, Simon Guerrero-Cruz, Daan R. Speth, Jeroen Frank, Jeroen Frank, Lavinia Gambelli, Geert Cremers, Theo van Alen, Mike S. M. Jetten, Mike S. M. Jetten, Mike S. M. Jetten, Boran Kartal, Huub J. M. Op den Camp, Joachim Reimann   +13 more
doaj   +1 more source

Heme‐NO Dilates Arteries via Mobilization of NO Moieties From an Intracellular NO Store Within Vascular Smooth Muscle Cells

Advanced Science, EarlyView.
Nitrosyl heme emerges as an extracellular nitrodilator that dilates arteries without crossing the cell membrane. Instead, heme‐NO mobilizes NO moieties from a preformed intracellular NO store within vascular smooth muscle, providing both functional and chemical evidence for the NANOS model, revealing a previously unrecognized mechanism of arterial ...
Taiming Liu, Meijuan Zhang, Lingchao Zhu, Haiyan Ke, Amancio de Souza, Qian Li, Daniel Castella, Nicolai Lehnert, Lubo Zhang, Arlin B. Blood   +9 more
wiley   +1 more source

Direct δ‐Lactone Synthesis From Free Alcohols via Photoinduced δ‐C(sp3)–H Carbonylation in Flow

Angewandte Chemie, EarlyView.
Herein, we have developed a photo‐flow platform for the δ‐C(sp3)─H carbonylative lactonization of free alcohols with carbon monoxide. The transformation integrates alkoxyl radical generation, selective 1,5‐HAT, CO incorporation, and radical–polar crossover to enable direct access to δ‐lactones from simple alcohol precursors.
Prakash Chandra Tiwari, Runkang Liu, Timothy Noël   +2 more
wiley   +2 more sources

Kinetics, thermodynamics, and active neuro-fuzzy inference system models for assessing oxidative stability and shelf life in fermented sausages

Food Chemistry: X
Due to health concern of nitrite in meat products, probiotic fermented sausage has reported for bio decontamination of nitrite. As nitrite play role in the oxidative stability of meat products, in this study we examined oxidation parameters in probiotic ...
Nader Karimian-Khosroshahi, Samaneh Nabizadeh, Keyvan Aeini, Hedayat Hosseini, Abdorreza Mohammadi, Kianoush Khosravi-Darani   +5 more
doaj   +1 more source

Light‐Activatable Nitric Oxide Release via Intramolecular Electron Transfer for Tumor Pyroptosis Induction

Advanced Science, EarlyView.
This work proposes a novel strategy to fabricate unimolecular pyroptosis photoinitiators activated by deep‐red light at low light doses. It relies on a photosensitization mechanism to trigger nitric oxide (NO) release from benzisothiadiazole‐based N‐nitrosanilines without modification of nitro moieties, thereby boosting pyroptosis‐mediated ...
Chuangxin Zhang, Ruipeng Li, Yunxia Wang, Feng Liu, Liheng Feng   +4 more
wiley   +1 more source

Mechanism of Ammonia Oxidation to Dinitrogen, Nitrite, and Nitrate on -Ni(OH)2 from First-Principles Simulations

, 2021
The electrocatalyzed ammonia oxidation reaction (AOR) is a potential pathway toward waste ammonia remediation, energy generation, and the synthesis of value- added products.
Stephen W., Tatarchuk, Anna, Klinkova, Rachelle M., Choueiri, Leanne D., Chen   +3 more
core   +1 more source

Enhanced Formation of Dicarboxylic Acids in the Catalytic Oxidation of Polyethylene With O2 and NOx

Angewandte Chemie, EarlyView.
The oxidation of polyethylene in the presence of a mixture of O2 and NOx and with Cu2+/V5+ as catalyst yields ∼51 mol% diacids, while retaining ∼80 mol% of the carbon in the oil fraction. The developed method is robust and tolerates several polymer types as well as impurities.
Tom J. Smak, Rinke Altink, Ina Vollmer, Bert M. Weckhuysen   +3 more
wiley   +2 more sources