In acoustic waves, engineers break reciprocity with 'spacetime-varying metamaterials'
Reciprocity isn't always a good thing.
General Physics
Feb 18, 2020
0
103
Page 2 - News tagged with reciprocity
How important is reciprocity for climate policy?
The Paris Agreement relies on voluntary and therefore weak commitments. But contrary to popular belief, if some countries "free-ride", this does not undermine the commitment of others, writes Thomas Bernauer.
Environment
Mar 7, 2019
0
6
Study shows gender preferences differ more in countries that are more affluent and gender equal
A pair of researchers, one with the University of Bonn, the other the University of California, has found evidence that shows gender preferences differ more in countries that are more affluent and gender equal than in countries ...
Dominant practice of public relations, competition, is not best, study finds
Within public relations, the standard practice of looking out for No. 1 and viewing relationships as sources of conflict and competition is defended by best-selling textbooks and a generation of research. A growing body of ...
Economics & Business
Jun 7, 2018
0
3
Team develops optically controlled, non-reciprocal multifunctional photonic devices
The USTC Microcavity Research Group in the Key Laboratory of Quantum Information has perfected a 4-port, all-optically controlled non-reciprocal multifunctional photonic device based on a magnetic-field-free optomechanical ...
Optics & Photonics
May 10, 2018
0
11
Scientists experimentally realize optomechanically induced non-reciprocity
Light has reciprocity with bidirectional transmission in ordinary media. Circulators and isolators are indispensable components in classical and quantum information processing in an integrated photonic circuit. Therefore, ...
Optics & Photonics
Aug 29, 2016
0
0
Camp stability predicts patterns of hunter-gatherer cooperation
Reciprocal food-sharing is more prevalent in stable hunter-gatherer camps, shows new UCL research that sheds light on the evolutionary roots of human cooperation.
Social Sciences
Jul 12, 2016
2
138
I've got your back—fishes really do look after their mates
When it comes to helping each other out, it turns out that some fish are better at it than previously thought.
Plants & Animals
Sep 25, 2015
1
69
Behaviour study shows rats know how to repay kindness
If I scratch your back and you scratch mine, then we're both better off as a result – so goes the principle of reciprocity, one of the most popular explanations for how co-operative behaviour has evolved. But what if one ...
Plants & Animals
Feb 25, 2015
18
66
Reciprocal behaviour in non-human primates a balancing act between fairness and empathy (w/ Video)
A study into whether grey parrots understand the notion of sharing suggests that they can learn the benefits of reciprocity.
Plants & Animals
Feb 26, 2014
0
29
