Results 31 to 40 of about 14,001,607 (382)

Damage of polyesters by the atmospheric free radical oxidant NO3•: a product study involving model systems

open access: yesBeilstein Journal of Organic Chemistry, 2013
Manufactured polymer materials are used in increasingly demanding applications, but their lifetime is strongly influenced by environmental conditions. In particular, weathering and ageing leads to dramatic changes in the properties of the polymers, which
Catrin Goeschen, Uta Wille
doaj   +1 more source

Reaction mechanisms in 24Mg+12C and 32S+24Mg [PDF]

open access: yes, 2008
The occurence of "exotic" shapes in light N=Z alpha-like nuclei is investigated for 24Mg+12C and 32S+24Mg. Various approaches of superdeformed and hyperdeformed bands associated with quasimolecular resonant structures with low spin are presented.
A. Gadea   +26 more
core   +3 more sources

The EIMS fragmentation mechanisms of the sesquiterpenes corvol ethers A and B, epi-cubebol and isodauc-8-en-11-ol

open access: yesBeilstein Journal of Organic Chemistry, 2016
Farnesyl diphosphate (FPP) and all fifteen positional isomers of (13C1)FPP were enzymatically converted by the bacterial terpene cyclases corvol ether synthase from Kitasatospora setae, the epi-cubebol synthase from Streptosporangium roseum, and the ...
Patrick Rabe, Jeroen S. Dickschat
doaj   +1 more source

Advances in Solid-State Transformations of Coordination Bonds: From the Ball Mill to the Aging Chamber

open access: yesMolecules, 2017
Controlling the formation of coordination bonds is pivotal to the development of a plethora of functional metal-organic materials, ranging from coordination polymers, metal-organic frameworks (MOFs) to metallodrugs.
Cristina Mottillo, Tomislav Friščić
doaj   +1 more source

Unified connected theory of few-body reaction mechanisms in N-body scattering theory [PDF]

open access: yes, 1978
A unified treatment of different reaction mechanisms in nonrelativistic N-body scattering is presented. The theory is based on connected kernel integral equations that are expected to become compact for reasonable constraints on the potentials.
Polyzou, W. N., Redish, E. F.
core   +2 more sources

Dimerization reactions of aryl selenophen-2-yl-substituted thiocarbonyl S-methanides as diradical processes: a computational study

open access: yesBeilstein Journal of Organic Chemistry, 2017
An intriguing stepwise diradical mechanism of the dimerization of the reactive intermediate (thiocarbonyl S-methanide) appearing in the reaction of phenyl selenophen-2-yl thioketone with diazomethane was studied by means of computational methods.
Michael L. McKee   +3 more
doaj   +1 more source

Hydrogenation of CO2 Promoted by Silicon-Activated H2S: Origin and Implications

open access: yesMolecules, 2020
Unlike the usual method of COx (x = 1, 2) hydrogenation using H2 directly, H2S and HSiSH (silicon-activated H2S) were selected as alternative hydrogen sources in this study for the COx hydrogenation reactions.
Xing Liu
doaj   +1 more source

Probing elastic and inelastic breakup contributions to intermediate-energy two-proton removal reactions [PDF]

open access: yes, 2012
The two-proton removal reaction from 28Mg projectiles has been studied at 93 MeV/u at the NSCL. First coincidence measurements of the heavy 26Ne projectile residues, the removed protons and other light charged particles enabled the relative cross ...
Baugher, T   +24 more
core   +2 more sources

Free radicals, natural antioxidants, and their reaction mechanisms

open access: yes, 2015
The normal biochemical reactions in our body, increased exposure to the environment, and higher levels of dietary xenobiotic's result in the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS). The ROS and RNS create oxidative
S. B. Nimse, D. Pal
semanticscholar   +1 more source

Two classes of quasi-steady-state model reductions for stochastic kinetics [PDF]

open access: yes, 2007
The quasi-steady-state approximation (QSSA) is a model reduction technique used to remove highly reactive species from deterministic models of reaction mechanisms.
Haseltine, Eric L.   +2 more
core   +1 more source

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