Results 71 to 80 of about 3,406,203 (262)

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS 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

A Remark on Bargaining and Non-Expected Utility [PDF]

open access: yes
We show that a bargaining game of alternating offers with exogenous risk of breakdown and played by dynamically consistent non-expected utility maximizers is formally equivalent to Rubinstein's (1982) game with time preference.
Oscar Volij
core  

How to Model Lexical Priority

open access: yesErgo, An Open Access Journal of Philosophy
A moral requirement R1 is said to be lexically prior to a moral requirement R2 just in case we are morally obliged to uphold R1 at the expense of R2—no matter how many times R2 must be violated thereby. While lexical priority is a feature of many ethical
Martin Smith
doaj   +2 more sources

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

open access: yesFEBS 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

Non-expected Utility, Saving, and Portfolios [PDF]

open access: yes
Existing findings suggest that standard, frictionless, expected-utility models have difficulty accounting for average and for median holdings of wealth and of risky assets, partly as a result of the largely unexplained limited proportion of stockholders ...
Christis Hassapis, Michael Haliassos
core  

Filozofická reflexe omezené racionality (Philosophical Reflection of Bounded Rationality )

open access: yesOstium, 2017
Research of rationality represents area of interaction between philosophy and economics. Development of neuroscience and advances in scientific research lead to another common characteristic – gradual loss of competence to comment on results of ...
Michal Müller, Ondrej Močkor
doaj  

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

open access: yesFEBS 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   +6 more
wiley   +1 more source

Resolving inconsistencies in utility measurement under risk: Tests of generalizations of expected utility [PDF]

open access: yes
This paper explores biases in the elicitation of utilities under risk and the contribution that generalizations of expected utility can make to the resolution of these biases.
Ildefonso Méndez-Martínez   +3 more
core  

Effects of the GM Controversy on Iowa Corn-Soybean Farmers' Acreage Allocation Decisions

open access: yesJournal of Agricultural and Resource Economics, 2003
Prior to the 2000 planting season, some industry observers predicted acreage of genetically modified crops would decline dramatically. However, actual 2000 plantings presented a puzzle.
Corinne E. Alexander   +2 more
doaj   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS 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   +4 more
wiley   +1 more source

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