50 research outputs found
Entropy and the uncertainty principle
We generalize, improve and unify theorems of Rumin, and Maassen--Uffink about
classical entropies associated to quantum density matrices. These theorems
refer to the classical entropies of the diagonals of a density matrix in two
different bases. Thus they provide a kind of uncertainty principle. Our
inequalities are sharp because they are exact in the high-temperature or
semi-classical limit.Comment: 6 page
Ratings als validering bij de bepaling van sociometrische status met nominaties in longitudinaal onderzoek
Reliable change assessment in sport concussion research: a comment on the proposal and reviews by Collie et al.
SSrat : Two-dimensional sociometric status determination with rating scales
SSRAT is a computer program for two-dimensional sociometric status determination with rating scales. For each person assessed, SSRAT computes probability distributions of the total scores for ‘sympathy’ (S), ‘antipathy’ (A), ‘social preference’ (P) and ‘social impact’ (I), and applies the criteria for sociometric status categorization
The standard error in the Jacobson and Truax Reliable Change Index (the classical approach to the assessment of reliable change)
The Two Errors of Using the Within-Subject Standard Deviation (WSD) as the Standard Error of a Reliable Change Index.
SSrat : Two-dimensional sociometric status determination with rating scales
SSRAT is a computer program for two-dimensional sociometric status determination with rating scales. For each person assessed, SSRAT computes probability distributions of the total scores for ‘sympathy’ (S), ‘antipathy’ (A), ‘social preference’ (P) and ‘social impact’ (I), and applies the criteria for sociometric status categorization