Results 41 to 50 of about 3,361 (281)

The Synthesis of 7-Substituted-2,3-dihydropyrido[4,3-d]pyridazine-1,4-diones and 1,4-Dioxo-7-substituted-1,2,3,4-tetrahydropyrido[4,3-d]pyridazine 6-Oxides from Methyl Ketones

Acta Chimica Slovenica, 2017
A general four-step transformation of alkyl, cycloalkyl, aryl, and heteroaryl methyl ketones via 3-(dimethylamino)-1-substituted-prop-2-en-1-ones, followed by microwave   [2+2] cycloaddition of dimethyl acetylenedicarboxylate, cyclization of (2E,3E)-2 ...
Branko Stanovnik, Benjamin Prek
doaj   +1 more source

Hypersensitivity to intravenous succinate corticosteroids in patients with nonsteroidal anti-inflammatory drug-exacerbated respiratory disease

Frontiers in Allergy, 2023
Although there are many case reports of asthma exacerbations with intravenous corticosteroids, especially hydrocortisone succinate, in nonsteroidal anti-inflammatory drug-exacerbated respiratory disease (N-ERD), the frequency and mechanism remain unclear.
Masami Taniguchi, Masami Taniguchi, Atsuhiko Sato, Haruhisa Mita   +3 more
doaj   +1 more source

Synthesis and Properties of Oligodeoxynucleotides Carrying 2-Aminopurine [PDF]

, 2011
The use of benzoyl, isobutyryl and dimethylaminomethylidene groups for the protection of the exocyclic amino function of 2-aminopurine during oligonucleotide synthesis has been investigated.
Eritja Casadellà, Ramón, Fàbrega, Carme, Grijalvo, Santiago   +2 more
core   +1 more source

Comparison of two sample preparation methods for 1H-NMR wine profiling: Direct analysis and solid-phase extraction [PDF]

, 2021
This study compares two sample preparation methods: direct analysis (DA) and solid-phase extraction (SPE) for wine samples analysis by proton nuclear magnetic resonance (1H-NMR) spectroscopy.
Esturau-Escofet, N., ESTURAU-ESFOFET, NURIA, García-Aguilera, M. E., Ocaña-Rios, I., Rodríguez de San Miguel, E., Ruiz-Terán, F., Tovar-Osorio, K.   +6 more
core   +2 more sources

Poly[[diaqua-μ6-succinato-di-μ5-succinato-didysprosium(III)] monohydrate]

Acta Crystallographica Section E, 2011
The title compound, {[Dy2(C4H4O4)3(H2O)2]·H2O}n, is isostructural with other lanthanide succinates of the same formula. The DyIII atom is nine-coordinated in a tricapped trigonal–prismatic environment by eight O atoms, derived from six
Wei Xu, Hai-Sheng Chang, Xia-Xia Guo
doaj   +1 more source

Illumina Sequencing and Metabolomics Analysis Reveal Thiamine Modulation of Ruminal Microbiota and Metabolome Characteristics in Goats Fed a High-Concentrate Diet

Frontiers in Microbiology, 2021
Long-term supplementation of a high-concentrate diet enhances the accumulation of lactate and decrease in pH in goat rumen, thereby disrupting the composition of microbial community.
Yi Ma, Chao Wang, Hao Zhang, Lihuai Yu, Li Dong, Daoqing Gong, Junhu Yao, Hongrong Wang   +7 more
doaj   +1 more source

13C MRS: An outstanding tool for metabolic studies [PDF]

, 2005
We provide an overview of 13C magnetic resonance spectroscopy methods and their applications as an established metabolic tool with an emphasis on the use of high-resolution 13C magnetic resonance spectroscopy and 13C isotopomer analysis. Topics addressed
Cerdán, Sebastián, Rodrigues, Tiago B.
core   +1 more source

THERMAL BEHAVIOUR OF SUCCINIC ACID, SODIUM SUCCINATE AND ITS COMPOUNDS WITH SOME BIVALENT TRANSITIONS METAL IONS IN DYNAMIC N 2 AND CO ATMOSPHERES

Eclética Química, 2018
Thermal stability and thermal decomposition of succinic acid, sodium succinate and its compounds with Mn(II), Fe(II), Co(II),  Ni(II), Cu(II) and Zn(II) were investigated employing simultaneous thermogravimetry and differential thermal analysis (TG-DTA ...
Flávio Junior Caires, Liliane Spazzapam Lima, Cláudio Teodoro de Carvalho, Massao Ionashiro   +3 more
doaj   +1 more source

Investigation of Alternative Deicers for Snow and Ice Control [PDF]

, 2018
This technical report presents the findings of the laboratory analysis of potassium succinate (KSu) as a roadway deicer. Laboratory analysis included modified SHRP ice-melting testing, a differential scanning calorimetry (DSC) thermogram, and friction ...
Akin, Michelle, Fay, Laura
core  

Crystal structure of an HD-GYP domain cyclic-di-GMP phosphodiesterase reveals an enzyme with a novel trinuclear catalytic iron centre [PDF]

, 2014
Bis-(3′,5′) cyclic di-guanylate (c-di-GMP) is a key bacterial second messenger that is implicated in the regulation of many crucial processes that include biofilm formation, motility and virulence.
An, Shi-Qi, Bellini, Dom, Bumann, Mario, Caly, Delphine L., Dow, J. Maxwell, McCarthy, Yvonne, Ryan, Robert P., Walsh, Martin A.   +7 more
core   +3 more sources