Rebellion among the ranks

Measuring Agreement Among Ranks: Sustainability Application

Is it possible to compare rankings from different sources when the individual rankings of the top x elements differ? To investigate this question, 2015 sustainable rankings from 4 sources that have ranked the top globally most sustainable corporations are considered (Corporate Knights, Fortune’s World’s Most Admired Companies, Newsweek’s Green Rankings, and Harris). These rankings are analyzed ...

Teenage rebellion--current state of delinquent behaviour among Japanese adolescents.

The authors undertook a survey among senior high school students in an ordinary high school and delinquents in a reformantry concerning the corre lation among three behaviours. Those are: 1. overt deliquency, 2. predelin quent acts (drinking and smoking in particular), 3. delinquent behaviour in fantasy. Results follow, 1. The sense of alienation is quite common among Japanese adolescents (arou...

Group Rebellion in the 1980s

Animal Behavior: The Orphan Rebellion

After their queen has left with a swarm, orphaned larvae exhibiting rebel traits emerge in honeybee colonies. As adults, these orphans have reduced food glands to feed the colony's larvae and more developed ovaries to selfishly reproduce their own offspring.

On the Possible Ranks among Matrices with a given Pattern

Given are tight upper and lower bounds for the minimum rank among all matrices with a prescribed zero-nonzero pattern. The upper bound is based upon solving for a matrix with a given null space and, with optimal choices, produces the correct minimum rank. It leads to simple, but often accurate, bounds based upon overt statistics of the pattern. The lower bound is also conceptually simple. Often...