voxcharta.orgの競合サイトトップ10

astrobetter.com

AstroBetter

hubblesite.org

NASA Science seeks to discover the secrets of space, the origins of the universe, search for life elsewhere, and protect and improve life on Earth.

aanda.org

astronomy & astrophysics (a&a) is an international journal which publishes papers on all aspects of astronomy and astrophysics

stsci.edu

Review the data quality checklist and frequent asked questions about DrizzlePac.

astronomy.com

Astronomers have detected a radio glow caused by shockwaves in the gigantic filaments between galaxy clusters in the cosmic web, which pervades the universe.

caltech.edu

For her work on the directed evolution method of bioengineering enzymes, Frances Arnold has been awarded the Nobel Prize in Chemistry.

arxiv.org

A system of non-tradable credits that flow between individuals like karma, hence proposed under that name, is a mechanism for repeated resource allocation that comes with attractive efficiency and fairness properties, in theory. In this study, we test karma in an online experiment in which human subjects repeatedly compete for a resource with time-varying and stochastic individual preferences or urgency to acquire the resource. We confirm that karma has significant and sustained welfare benefits even in a population with no prior training. We identify mechanism usage in contexts with sporadic high urgency, more so than with frequent moderate urgency, and implemented as a simple (binary) karma bidding scheme as particularly effective for welfare improvements: relatively larger aggregate efficiency gains are realized that are (almost) Pareto superior. These findings provide guidance for further testing and for future implementation plans of such mechanisms in the real world.

nrao.edu

Check out the outreach programs and events offered to the public by NSF's NRAO. Resources for students and educators.