Results 151 to 160 of about 329,041 (249)
Election observers and electoral fraud
Election observation - the deployment of trained personnel to monitor the compliance of political parties with electoral laws - has become a prominent feature of polls in countries across the world.
Ofosu, George, Brierley, Sarah
core
Hypothalamic-amygdala gating of caregiving-like prosocial behavior in mice. [PDF]
Geng KW +7 more
europepmc +1 more source
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
Comparing the reliability of three software programmes for manual and (semi-)automatic volumetry in healthy livers. [PDF]
van der Velden AL +8 more
europepmc +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
Decoupling what, how, and when for observing decision-making context in autonomous robots. [PDF]
Ernst J +4 more
europepmc +1 more source
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
Validity and reliability of the Organic method used for assessment of plumage damage in laying hens. [PDF]
Brindle JE +4 more
europepmc +1 more source
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

