Results 61 to 70 of about 7,237 (234)

Bio-Fertilizers via Co-Digestion: a Review [PDF]

open access: yes, 2019
In diversifying the economies of most oil producing countries especially in regions with arable lands, Agriculture becomes the next choice aside mineral deposits.
Abdulkarim, Abdulwadud Yusuf   +3 more
core   +2 more sources

The local structure in liquid methylamine and methylamine–water mixtures [PDF]

open access: yesThe Journal of Chemical Physics, 2000
Molecular dynamics (MD) computer simulations are carried out on liquid methylamine and on 10 and 30 wt % aqueous solutions of methylamine. The local three-dimensional structure in these liquid systems is investigated using standard one-dimensional radial distribution functions and the fully three-dimensional measure of the local structure around the ...
Kusalik, Peter G.   +2 more
openaire   +2 more sources

Comparative genomics highlights the unique biology of Methanomassiliicoccales, a Thermoplasmatales-related seventh order of methanogenic archaea that encodes pyrrolysine [PDF]

open access: yes, 2014
BACKGROUND: A seventh order of methanogens, the Methanomassiliicoccales, has been identified in diverse anaerobic environments including the gastrointestinal tracts (GIT) of humans and other animals and may contribute significantly to methane emission ...
Bardot, Olivier   +11 more
core   +4 more sources

One-pot two-step reduction of CO2 with amines and NaBH4 to N-substituted compounds at atmospheric pressure

open access: yesJournal of CO2 Utilization
In this paper, the reductive N-formylation, methylation and cyclization of amines with carbon dioxide (CO2) using sodium borohydride (NaBH4) at atmospheric pressure, via a one-pot two-step procedure, is presented. Formato borohydride (NaBHn(OCHO)4-n), in
Junhong Wang   +3 more
doaj   +1 more source

An NMR-Based Metabolomics Assessment of the Effect of Combinations of Natural Feed Items on Juvenile Red Drum, Sciaenops ocellatus

open access: yesJournal of Marine Science and Engineering, 2022
This study evaluated the effects of seven diets composed of natural feed components (chopped fish, shrimp, and squid) alone or in combination on the liver metabolite profile of juvenile red drum (Sciaenops ocellatus) cultured in a 24-tank recirculating ...
Fabio Casu   +4 more
doaj   +1 more source

Trace gas monitoring with infrared laser-based detection schemes [PDF]

open access: yes, 2018
The success of laser-based trace gas sensing techniques crucially depends on the availability and performance of tunable laser sources combined with appropriate detection schemes.
Bartlome, R.   +5 more
core  

North-south gradients in plasma concentrations of B-vitamins and other components of one-carbon metabolism in Western Europe: results from the European Prospective Investigation into Cancer and Nutrition (EPIC) Study. [PDF]

open access: yes, 2013
Different lifestyle patterns across Europe may influence plasma concentrations of B-vitamins and one-carbon metabolites and their relation to chronic disease. Comparison of published data on one-carbon metabolites in Western European regions is difficult
Antonia Trichopoulou   +43 more
core   +3 more sources

Site directed mutagenesis of L-pyrrolysine in dimethylamine methyltransferase [PDF]

open access: yes, 2009
Methanosarcina barkeri is an archaeon and is able to use methylamines as growth substrates for methanogenesis. The methylamine methyltransferases that are involved in initiating methanogenesis from the methylamines have an in-frame amber codon (UAG) that
Patel, Jigar
core  

Focus on the Chemical Value of Methanol

open access: yesJournal of King Saud University: Engineering Sciences, 1995
Methanol is produced in large quantities in the Kingdom from Natural Gas since 1983, and yearly production rate exceeded two million tons in the year 1992.
Ahmed Mohammed El-Zeftawy
doaj   +1 more source

Palladium-Catalyzed Oxidation of β-C(sp3)-H Bonds of Primary Alkylamines through a Rare Four-Membered Palladacycle Intermediate. [PDF]

open access: yes, 2020
Site-selective functionalizations of C-H bonds are often achieved with a directing group that leads to five- or six-membered metallacyclic intermediates. Analogous reactions that occur through four-membered metallacycles are rare. We report a challenging
Bunescu, Ala   +5 more
core   +1 more source

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