astro4edu.org的 10 大竞争对手

iauarchive.eso.org

Scientific bodies at the International Astronomical Union

constellation-guide.com

Constellations: A Guide to the Night Sky

edu.inaf.it

Informativa sul trattamento dei dati personali degli utenti del sito web della didattica e divulgazione dell'INAF e per la fruizione dei servizi online erogati

noirlab.edu

NSF National Optical-Infrared Astronomy Research Laboratory (NSF NOIRLab) is the preeminent US national center for ground-based, nighttime optical and infrared astronomy

starwalk.space

¿Qué planetas son visibles esta noche? ¿Dónde están Marte o Venus? ¿Cuál es la estrella más brillante del cielo? El mapa del cielo desde cualquier lugar.

astronomy.swin.edu.au

Cybersecurity is a shared responsibility and your actions can make a big difference to protect your security, both at home and at Swinburne.

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.