Results 31 to 40 of about 10,194 (228)

Structure-thermodynamics-antioxidant activity relationships of selected natural phenolic acids and derivatives: an experimental and theoretical evaluation. [PDF]

open access: yesPLoS ONE, 2015
Phenolic acids and derivatives have potential biological functions, however, little is known about the structure-activity relationships and the underlying action mechanisms of these phenolic acids to date.
Yuzhen Chen   +3 more
doaj   +1 more source

Free radical scavenging mechanism of 1,3,4-oxadiazole derivatives: thermodynamics of O–H and N–H bond cleavage

open access: yesHeliyon, 2020
The thermodynamics of free radical scavenge of 1,3,4-oxadiazole derivatives towards oxygen-centred free radicals were investigated by the density functional theory (DFT) method in the gas phase and aqueous solution.
Ikechukwu Ogadimma Alisi   +2 more
doaj   +1 more source

Radical Scavenging Capability and Mechanism of Three Isoflavonoids Extracted from Radix Astragali: A Theoretical Study

open access: yesMolecules, 2023
As a valuable traditional Chinese herbal medicine, Radix Astragali has attracted much attention due to its extensive pharmacological activities. In this study, density functional theory (DFT) was used thermodynamically and kinetically in detail to ...
Xiao-Qin Lu, Shu Qin, Jindong Li
doaj   +1 more source

Dileme regionalizacije Pohorskega Podravja

open access: yesDela, 1991
V planirani novi regionalni monografiji Slovenije naj bi bilo tudi Pohorsko Podravje predstavljeno v okviru mezoregij kot splet aktualnih regionalnih faktorjev in pri submakroregijah historični nastanek regionalnih prvin.
Ivan Gams
doaj   +1 more source

Computational Study of Ortho-Substituent Effects on Antioxidant Activities of Phenolic Dendritic Antioxidants

open access: yesAntioxidants, 2020
Antioxidants are an important component of our ability to combat free radicals, an excess of which leads to oxidative stress that is related to aging and numerous human diseases.
Choon Young Lee   +5 more
doaj   +1 more source

Chimerism after organ transplantation [PDF]

open access: yes, 1997
Recent evidence suggests that passenger leukocytes migrate after organ transplantation and produce persistent chimerism, which is essential for sustained survival of the allograft.
Demetris, AJ   +6 more
core   +1 more source

Free Radical Scavenging Potency of Dihydroxybenzoic Acids

open access: yesJournal of Chemistry, 2017
In order to evaluate the free radical scavenging potency of dihydroxybenzoic acids (DHBAs) the Density Functional Theory (DFT) was used. The M05-2X/6-311++G(d,p) and B3LYP-D2/6-311++G(d,p) theoretical models were applied.
Dejan Milenković   +5 more
doaj   +1 more source

Flavones’ and Flavonols’ Antiradical Structure–Activity Relationship—A Quantum Chemical Study

open access: yesAntioxidants, 2020
Flavonoids are known for their antiradical capacity, and this ability is strongly structure-dependent. In this research, the activity of flavones and flavonols in a water solvent was studied with the density functional theory methods.
Maciej Spiegel   +2 more
doaj   +1 more source

SEO as a model of integrated digital marketing by using modern web technologies [PDF]

open access: yes, 2016
Diploma thesis deals with extending the scope of search engine optimization (SEO) into integrated digital marketing model. A developed model is based on the use of modern web technologies to improve recognition and direct or indirect visibility of the ...
Erenda, Danijela
core   +3 more sources

Physicochemical, antioxidant properties of carotenoids and its optoelectronic and interaction studies with chlorophyll pigments

open access: yesScientific Reports, 2021
The physicochemical and antioxidant properties of seven carotenoids: antheraxanthin, β-carotene, neoxanthin, peridinin, violaxanthin, xanthrophyll and zeaxanthin were studied by theoretical means.
Ruby Srivastava
doaj   +1 more source

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