sciencefair.io的 10 大竞争对手

rishabacademy.com

This guide is a comprehensive overview of what CSEF is, as well as a detailed outline of the steps that YOU need to take to win CSEF and qualify for ISEF.

societyforscience.org

Effective July 25, 2018 This Cookie Policy explains how Society for Science and the Public uses cookies and similar technologies…

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.

quizlet.com

quizlet makes simple learning tools that let you study anything. start learning today with flashcards, games and learning tools — all for free.

aapt.org

american association of physics teachers - aapt.org

scholar.google.com

google scholar provides a simple way to broadly search for scholarly literature. search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions.

deca.org

DECA prepares emerging leaders and entrepreneurs for careers in marketing, finance, hospitality and management in high schools and colleges around the globe.