Results 21 to 30 of about 28,390 (226)

Antioxydant and prooxydant effects of arbutin and hydrohinon in experiment in vitro

open access: yesБюллетень сибирской медицины, 2011
The object of research is to compare antioxidant and prooxydant activity of arbutin and hydrochinon in vitro. Antioxidant and prooxydant activity of arbutin and hydrochinon is estimed of their ability to suppress/ induct oxydation ТВИН-80.
N. L. Voloboy   +6 more
doaj   +1 more source

Penerapan dasar perhitungan kebutuhan katalisator untuk oksidasi sulfida

open access: yesMajalah Kulit, Karet, dan Plastik, 1994
Sulphides beared in tannery wastewater are harmful pollutant which beturned to disastrous hydrogen sulphide gas under acidic circumtances. The previous study on Sulphides Oxydation System of varied catalist (MnSO4) added has not indicated a satisfactory ...
Puji Ediari Suryaningsih
doaj   +1 more source

A New Class of Nucleosides. Synthesis, Reactivity and Biological Activity of Keto-Hexose Nucleosides

open access: yesCHIMIA, 1975
Direct oxydation of sterically hindered hexosyl purines led to keto-hexosylpurines, important synthetic intermediates. The first unsaturated keto-nucleosides have also been obtained by acetylation of the corresponding keto-hexosyl purines.
K. Antonakis
doaj   +1 more source

Fluctuation-Facilitated Charge Migration along DNA

open access: yes, 2000
We propose a model Hamiltonian for charge transfer along the DNA double helix with temperature driven fluctuations in the base pair positions acting as the rate limiting factor for charge transfer between neighboring base pairs.
A. Garg   +28 more
core   +1 more source

Étude comparative de la dégradation du bromoxynil et du bromoxynil heptanoate par photolyse UV et par oxydation chimique (H²O²/UV ; O³ ; Cl²) [PDF]

open access: yes, 1995
Les dégradations du bromoxynil heptanoate et du bromoxynil ont été étudiées pour différents traitements chimiques (03, Cl2) et photochimiques (H202/W; W254) en milieu aqueux dilué.
Guitonneau, S.   +4 more
core   +1 more source

Organism-sediment interactions govern post-hypoxia recovery of ecosystem functioning [PDF]

open access: yes, 2012
Hypoxia represents one of the major causes of biodiversity and ecosystem functioning loss for coastal waters. Since eutrophication-induced hypoxic events are becoming increasingly frequent and intense, understanding the response of ecosystems to hypoxia ...
A Norkko   +80 more
core   +5 more sources

L’EPURATION TERTIAIRE DES EAUX USEES DE L’INDUSTRIE DE LA CELLULOSE [PDF]

open access: yesAnnals: Series on engineering sciences (Academy of Romanian Scientists), 2010
Les processus de fabrication de la cellulose représentent des sources importantes de pollution tant pour les eaux, que pour l’aire et le sol. La pollution de l’eau est du, essentiellement, aux substances organiques dissous, aux substances en suspension ...
Constantin STANCIU
doaj  

Oxydation humide des polluants organiques par l'oxygène moléculaire activée par le couple H²O²/Fe²+: Optimisation des paramètres opératoires [PDF]

open access: yes, 1994
L'oxydation humide par l'oxygène moléculaire (procédé WAO) activée par le couple (H202/Fe2+) a été mise en oeuvre pour l'oxydation de la pollution organique aqueuse à travers deux composés modèles: l'acide succinique, normalement oxydable, et l'acide ...
Chakchouk, M.   +3 more
core   +1 more source

Behandlung photographischer Abwässer. Ein Umweltschutzproblem von wirtschaftlicher Bedeutung

open access: yesCHIMIA, 1980
The chemical treatment of photographic effluents (eg. oxydation, precipitation) increases the production costs of photographic laboratories and should therefore be considered only as the last step of a series of measures to abate pollution.
W. Grossmann
doaj   +1 more source

Oxydation der mehrwertigen Alkohole [PDF]

open access: yesBerichte der deutschen chemischen Gesellschaft, 1887
Als Oxydationsprodukte der mehrwertigen Alkohole hat man bisher nur Sauren gefunden; die dabei hochstwahrscheinlich zuerst entstehenden Aldehyde oder Ketone sind aus Mangel an geeigneten Methoden nicht beobachtet, geschweige denn isoliert worden. Eine einzige Ausnahme bildet der Mannit.
Emil Fischer, Julius Tafel
openaire   +1 more source

Home - About - Disclaimer - Privacy