Results 131 to 140 of about 272,370 (302)

Endogenous N-nitroso compounds, and their precursors, present in bacon, do not initiate or promote aberrant crypt foci in the colon of rats [PDF]

, 2000
Processed meat intake is associated with increased risk of colorectal cancer. This association may be explained by the endogenous formation of N-nitroso compounds (NOC).
Corpet, Denis E., Parnaud, Géraldine, Peiffer, Ginette, Pignatelli, Brigitte, Taché, Sylviane   +4 more
core   +1 more source

An Ambient Photocatalytic Approach to In‐Situ Prepare Cobalt/Cobalt Phosphide and Cobalt/Cobalt Phosphide@Graphene Heterojunction Nanomaterials With Optimized Charge Separation Effects for Highly Efficient Relayed Electrocatalytic NOX− Reduction to NH3

Carbon Energy, EarlyView.
A visible‐light‐driven ambient photocatalytic method in‐situ fabricates Co/CoP‐x and Co/CoP@rGO heterojunction with enhanced charge separation, enabling highly efficient relayed electrocatalytic NOx− reduction to NH3 with outstanding Faraday efficiency and ammonia productivity.
Xin Zhao, Chuanjun Wang, Shenjie Liu, Guoqiang Wang, Jing Dong, Chen Lei, Geoffrey I. N. Waterhouse, Jing Xu   +7 more
wiley   +1 more source

Nitric oxide and nitrous oxide production and cycling during dissimulatory nitrite reduction by Pseudomonas perfectomarina [PDF]

, 1989
The denitrifier Pseudomonas perfectomarina reduced nitrite under conditions of kinetic competition between cells and gas sparging for extracellular dissolved nitric and nitrous oxides, NOaq and N2Oaq, in a chemically defined marine medium.
Hanley, QS, Snyder, G, Zafiriou, OC
core  

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Engineering Bisubstrates to Target m6Am RNA Methyltransferases: Synthesis and Computational Studies

Chemistry – A European Journal, EarlyView.
Use of the convertible nucleoside approach to synthesize m6Am RNA methyltransferase bisubstrates. This methodology allows for the introduction of modifications on the SAM analog moiety and the RNA substrate part, including the introduction of a cap analog by click chemistry.
Yoann Colas, Laurent Le Corre, Mélanie Ethève‐Quelquejeu, Emmanuelle Braud   +3 more
wiley   +1 more source

Synthetic Strategies for Activity‐Based Probes to Decode Ubiquitin‐Like Modifiers

Chemistry – A European Journal, EarlyView.
ABSTRACT Ubiquitin‐like proteins (Ubls) such as SUMO, NEDD8, ISG15, URM1, UFM1, FAT10, ATG8/ATG12, and FUBI are essential regulators of cellular homeostasis, controlling processes from protein stability and trafficking to immune signaling and autophagy.
Saibal Chanda, Alan Pham, SreeNidhi Karnati, Natalia Soto Rodriguez, Alyssa Toner, Wenshe Ray Liu   +5 more
wiley   +1 more source

Tidal oscillations at the head of Monterey Submarine Canyon and their relation to oceanographic sampling and the circulation of water in Monterey Bay. Annual report, Part 6, September 1972 [PDF]

, 1972
During a 25-hour hydrographic times series at two stations near the head of Monterey Submarine Canyon, an internal tide was observed with an amplitude of 80 to 115 m in water depths of 120 and 220 m respectively.
Broenkow, William W., McKain, Scott J.
core  

On the Reaction Mechanism of Nitrate Radical and DMPO in Non‐aqueous Photocatalytic Media

Chemistry – A European Journal, EarlyView.
This work identifies 2‐oxo‐5,5‐dimethyl‐1‐pyrroline 1‐oxyl (DMPOX), formed via the selective oxidation of 5,5‐dimethyl‐1‐pyrroline N‐oxide (DMPO) by nitrate radicals (NO3•) in nonaqueous media, as a distinctive EPR fingerprint of NO3•. The DFT‐supported mechanism clarifies its formation pathway and highlights DMPOX detection as a robust tool for ...
Alessandro Gottuso, Alessia Zollo, Leonardo Palmisano, Stefano Livraghi, Francesco Parrino   +4 more
wiley   +1 more source

Intergration of control chart and pattern recognizer for bivariate quality control [PDF]

, 2015
Monitoring and diagnosis of mean shifts in manufacturing processes become more challenging when involving two or more correlated variables. Unfortunately, most of the existing multivariate statistical process control schemes are only effective in rapid ...
Mohd Sohaimi, Nurul Adlihisam
core  

Hydroquinone Oxidation by Redox‐active Guanidines and Thioguanidines: Faster Conversion to High‐Potential Than to Low‐Potential Quinones

Chemistry – A European Journal, EarlyView.
New redox‐active oligothioguanidines are developed and used in dehydrogenative P–P coupling reactions and hydroquinone oxidations. Tetrathioguanidino‐ and tetraguanidinobenzenes oxidize high‐potential halogenated hydroquinones faster than relatively low‐potential hydroquinone.
Ute Wild, Olaf Hübner, Sebastian Jaworski, Elisabeth Kaifer, Hans‐Jörg Himmel   +4 more
wiley   +1 more source