Results 11 to 20 of about 305,024 (196)

Effect of oxidative stress and physiological parameters in use Nigella sativa aqueous extract and some Drugs in inhibition in induced renal calculi formation in Rat.

open access: yesTikrit Journal of Pure Science, 2023
This study aimed to study the effects of physiological and  biochemical changes ofthe aqueous extract Nigella sativaseeds. And using drugs (common usig in treatment of renal calculi) like Coli-Urinal, Uricol and Kellagon powders in inhibition of renal ...
Hala H.D.Mahdi   +2 more
doaj   +1 more source

Radical azidation as a means of constructing C(sp3)-N3 bonds

open access: yesGreen Synthesis and Catalysis, 2020
The azido group is found in large numbers of natural products, drugs, biochemicals and materials and to date, many elegant and useful methods for the synthesis of organic azides and their transformations have been documented. In this review, we provide a
Liang Ge   +3 more
doaj   +1 more source

Synthesis of difluoromethylated allenes through trifunctionalization of 1,3-enynes

open access: yesNature Communications, 2020
Fluorinated or fluoroalkylated allenes are versatile building blocks for medicinal and material chemistry. Here, the authors show a regioselective trifunctionalization of 1,3-enynes proceeding through double C-F bond formation and concomitant ...
Munira Taj Muhammad   +9 more
doaj   +1 more source

The Introduction of the Radical Cascade Reaction into Polymer Chemistry: A One-Step Strategy for Synchronized Polymerization and Modification

open access: yesiScience, 2020
Summary: Polymerization and modification play central roles in polymer chemistry and are generally implemented in two steps, which suffer from the time-consuming two-step strategy and present considerable challenge for complete modification.
Nengbo Zhu   +7 more
doaj   +1 more source

Revealing the Iron-Catalyzed β-Methyl Scission of tert-Butoxyl Radicals via the Mechanistic Studies of Carboazidation of Alkenes

open access: yesMolecules, 2020
We describe here a mechanistic study of the iron-catalyzed carboazidation of alkenes involving an intriguing metal-assisted β-methyl scission process.
Mong-Feng Chiou   +4 more
doaj   +1 more source

Boron Modified Bifunctional Cu/SiO2 Catalysts with Enhanced Metal Dispersion and Surface Acid Sites for Selective Hydrogenation of Dimethyl Oxalate to Ethylene Glycol and Ethanol

open access: yesNanomaterials, 2021
Boron (B) promoter modified Cu/SiO2 bifunctional catalysts were synthesized by sol-gel method and used to produce ethylene glycol (EG) and ethanol (EtOH) through efficient hydrogenation of dimethyl oxalate (DMO).
Deliang Yang   +8 more
doaj   +1 more source

ABA triblock copolymers: from controlled synthesis to controlled function [PDF]

open access: yes, 2003
The ABA amphiphilic block copolymers, poly(hydroxyethyl methacrylate-hlock-methylphenylsilane-block-hydroxyethyl methacrylate) (PHEMA-PMPS-PHEMA) and poly[oligo(ethylene glycol) methyl ether methacrylate-block-methylphenylsilane-block-oligo(ethylene ...
Allen   +71 more
core   +2 more sources

Ethylene Glycol Toxicity [PDF]

open access: yesMilitary Medicine, 2004
Ethylene glycol is an inexpensive, readily available substance that may be associated with accidental or intentional toxicity. Toxicity from this substance may be encountered in the military and civilian populations. Because it is highly toxic and can result in death if not treated appropriately, it is imperative to recognize the signs and symptoms of ...
Robert D, Cox, William J, Phillips
openaire   +2 more sources

Corrosion Behavior of ZrCrMoNb High-entropy Alloy Coating in Ethylene Glycol Solution

open access: yesInternational Journal of Electrochemical Science, 2021
A novel ZrCrMoNb high-entropy alloy coating was prepared on 3A21 aluminum alloy and its corrosion behavior in ethylene glycol solution was studied. By polarization curve, electrochemical impedance spectroscopy (EIS) and scanning electron microscope (SEM),
Hanyang Zuo   +6 more
doaj   +1 more source

Effects of Pitfall Trap Preservative on Collections of Carabid Beetles (Coleoptera: Carabidae) [PDF]

open access: yes, 2018
Effects of six pitfall trap preservatives (5% acetic acid solution, distilled water, 70% ethanol, 50% ethylene glycol solution, 50% propylene glycol solution, and 10% saline solution) on collections of carabid beetles (Coleoptera: Carabidae) were studied
McCravy, Kenneth W, Willand, Jason E
core   +2 more sources

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