Results 61 to 70 of about 14,777,258 (301)
The value of dual-energy CT electron cloud density and effective atomic number in differential diagnosis of benign and malignant thyroid nodules [PDF]
Xin yixueObjective To investigate the differential diagnostic value of dual-energy CT electron cloud density （Rho） and effective atomic number （Z） between benign and malignant thyroid nodules.
ZHONG Liru, LUO Na, TANG Wenjie
doaj +1 more source
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.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
Atomic Energy Commission Report AECD-3792
, 1955 Report discussing the progress of various projects at the Knolls Atomic Power Laboratory during the period from March to May ...
Knolls Atomic Power Laboratory
core
Effective Atomic Number Dependence of Radiological Parameters of Some Organic Compounds at 122 KeV Gamma Rays [PDF]
, 2018 Mass attenuation coefficient is a fundamental parameter of radiation interaction, from which the other radiological parameters like half Value Layer [HVL], tenth Value Layer [TVL], total atomic and electronic cross-sections, mass energy absorption ...
Singh, Bhajan +3 more
core +1 more source
FEBS Letters, EarlyView.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
Atomic Energy Commission Report AECD-2376
, 1947 Technical report summarizing the radioactive properties of two transplutonium elements, atomic number 95 (Americium) and atomic number 96 (Curium)
Seaborg, Glenn T. (Glenn Theodore), 1912-1999
core
3D Effective Atomic Number Estimation for X-Ray Security Inspection Systems
Public places, such as airports, factories, public institutions, and organizations, require advanced security measures. X-Ray systems are often used to check passengers' luggage. Researchers and technologists are constantly working to improve the baggage-
Yalcin, Ozan
core +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
Atomic Energy Commission Report TID-7546 Book 1
, 1958 Preface: The Fuel Elements Conference held in Paris, France, November 18 to 23, 1957, under the joint sponsorship of the U.S. Atomic Energy Commission and the French Commissarat à l'Energie Atomique (CEA), provided an intensive review of fuel-element ...
U.S. Atomic Energy Commission
core
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.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