Results 101 to 110 of about 4,648,765 (293)

Incremental updates for efficient bidirectional transformations [PDF]

, 2011
A bidirectional transformation is a pair of mappings between source and view data objects, one in each direction. When the view is modified, the source is updated accordingly.
Wu, N, Wang, Meng,, Gibbons, J, Nicolas Wu, Wang, M, Gibbons, Jeremy, Wu, Nicolas, Meng Wang, Wang, Meng, Jeremy Gibbons, Gibbons, Jeremy,, Wu, Nicolas,   +11 more
core   +1 more source

Nondeterministic noiseless amplification via non-symplectic phase space transformations

New Journal of Physics, 2013
We analyse the action of an ideal noiseless linear amplifier operator, $g^{\hat {a}^{\dagger }\hat {a}}$ , using the Wigner function phase space representation.
Nathan Walk, Austin P Lund, Timothy C Ralph   +2 more
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, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

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, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Kinetics of orientational phase ordering near line defects in crystals

, 2015
General properties of directed ordering near line defects in elastic crystals undergoing phase transition are studied using the two-component time-dependent Ginzburg-Landau equation.
Massih, Ali, Bjerkén, Christina
core  

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

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

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source

Metastable phase transitions and structural transformations in solid-state materials at high pressure

, 2007
We use a combination of diamond anvil cell techniques and large volume (multi-anvil press, piston cylinder) devices to study the synthesis, structure and properties of new materials under high pressure conditions.
Quesada Cabrera, Raul, Shebanova, O, Machon, Denis, Sella, Andrea, McMillan, Paul F., Daisenberger, D, Hector, Andrew, Cabrera, RQ, Wilson, Mark, Wilson, M, Bailey, E, Lees, V, McMillan, Paul, Machon, D, Shebanova, Olga, Bailey, Edward, McMillan, PF, Lees, Victoria, Daisenberger, Dominik, Hector, A, Sella, A   +20 more
core   +1 more source

Improved conventional TEM sample preparation exploiting the birefringence of materials [PDF]

BIO Web of Conferences
Brozyniak Aleksander, Stadlmann Karin, Kürnsteiner Philipp, Groiss Heiko   +3 more
doaj   +1 more source