Results 61 to 70 of about 14,626,809 (402)

Nuclear astrophysical plasmas: ion distribution functions and fusion rates [PDF]

, 2005
This article illustrates how very small deviations from the Maxwellian exponential tail, while leaving unchanged bulk quantities, can yield dramatic effects on fusion reaction rates and discuss several mechanisms that can cause such deviations.Comment: 9
Lissia, Marcello, Quarati, Piero
core   +1 more source

Energy dependence of the 6Li + 16O scattering and isotopic differences between potentials of the 6,7Li + 16O interactions [PDF]

Ядерна фізика та енергетика, 2012
Experimental data of the 6Li + 16O elastic scattering at Ec.m.. = 3.27 - 36.8 MeV known from literature, were analyzed within the optical model and coupled-reaction-channels method.
A. T. Rudchik,, R. M. Zelinskyi, V. A. Plujko, A. P. Ilyin, Val. M. Pirnak, O. A. Ponkratenko, A. A. Rudchik, V. V. Uleschenko   +7 more
doaj  

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

Beilstein 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, Grzegorz Mlostoń, Katarzyna Urbaniak, Heinz Heimgartner   +3 more
doaj   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

A candidate LiBH4 for hydrogen storage: Crystal structures and reaction mechanisms of intermediate phases [PDF]

, 2005
First-principles calculation and x-ray diffraction simulation methods have been used to explore crystal structures and reaction mechanisms of the intermediate phases involved in dehydriding of LiBH4. LiBH4 was found to dehydride via two sequential steps:
Goddard, William A., III, Han, Young Soo, Kang, Jeung Ku, Kim, Se Yun, Muller, Richard P.   +4 more
core   +1 more source

Elastic and inelastic scattering of 12C ions by 7Li at 115 MeV [PDF]

Ядерна фізика та енергетика, 2013
Angular distributions of the 7Li + 12C elastic and inelastic scattering as well as the 7Li(14N, Х) reactions with exited stable and unstable nuclei with Z = 3 6 were measured at Elab(12C) = 115 MeV.
A. T. Rudchik, V. Yu. Kanishchev, A. A. Rudchik, O. A. Ponkratenko, E. I. Koshchy, S. Kliczewski, K. Rusek, V. A. Plujko, S. Yu. Mezhevych, Val. M. Pirnak, A. P. Ilyin, V. V. Uleshchenko, R. Siudak, J. Choiński, B. Czech, A. Szczurek   +15 more
doaj  

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Analysis of auto-ignition of heated hydrogen-air mixtures with different detailed reaction mechanisms [PDF]

, 2011
Auto-ignition processes of hydrogen, diluted with nitrogen, in heated air are numerically investigated by means of an unsteady laminar flamelet approach in mixture fraction space. The focus is on the auto-ignition delay time and the most reactive mixture
Merci, Bart, Stankovic, Ivana
core   +1 more source

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Enantiomerically Pure ansa-η⁵-Complexes of Transition Metals as an Effective Tool for Chirality Transfer

Molecules
Chiral ansa-η5-complexes of transition metals have shown remarkable efficacy in organometallic synthesis and catalysis. Additionally, enantiomerically pure ansa-complexes hold promise for the development of novel chiral materials and pharmaceuticals. The
Pavel V. Kovyazin, Leonard M. Khalilov, Lyudmila V. Parfenova   +2 more
doaj   +1 more source