Results 51 to 60 of about 13,614,081 (295)
Nuclear level density and level density parameter are important quantities in nuclear physics. Level density parameter is calculated through different methods.
V. Dehghani, S. A. Alavi, Kh. Benam
core +1 more source
Structural and biochemical analysis of a B12 superbinder
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Nuclear level density and the determination of thermonuclear rates for astrophysics [PDF]
12 pages, 4 Postcript figures, uses memsait.sty; preprint also available at http://quasar.physik.unibas.ch/ .
Rauscher, T. +2 more
openaire +3 more sources
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
Artificial molecular machines and motors—Design and control of nanoscale motion
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
Evaporated α-spectra have been measured in coincidence with low energy discrete γ-rays from residual nucleus 68Zn populated by αn evaporation from compound nucleus 73Ge produced in the reaction 64Ni(9Be,αn)68Zn at E(9Be) = 30 MeV.
Rajkumar Santra +14 more
doaj +1 more source
Determination of nuclear level densities from experimental information [PDF]
A novel Information Theory based method for determining the density of states from prior information is presented. The energy dependence of the density of states is determined from the observed number of states per energy interval and model calculations suggest that the method is sufficiently reliable to calculate the thermal properties of nuclei over ...
Cole, B. J. +2 more
openaire +3 more sources
Calculation of nuclear level density from an equation of state
The nuclear level density (U,I) is derived from an equation of state, without reference to the Fermi gas model. If the yrast line backbends, then the effective level density parameter aeff must be spin dependent at low temperatures.
Draayer, Jerry P. +2 more
core +1 more source
Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux +7 more
wiley +1 more source
STUDY OF NUCLEAR LEVEL DENSITY AND SPIN CUT-OFF FACTORS [PDF]
Nuclear level densities and spin cut-off factors have been deduced for nuclei in the mass region 24‹A‹63,from a microscopic theory, which includes nuclear pairing interaction. Single particle levels for both Seeger and Nilsson potentials were used in the
doaj

