Abreast with the Times

Abreast with the Times Again

A Treatise on Diagnostic Methods

nosis. With this one exception the entire range of clinical diagnostic methods is fully and thoroughly discussed, the various modifications of the Washerman test being described with a completeness which shows that the author has kept abreast of the times. Tropical diseases receive somewhat uneven treatment. Malaria is fully dealt with, but the parasite of Kala-Azar is not even mentioned and th...

The Security of Abreast-DM in the Ideal Cipher Model

In this paper, we give a security proof for Abreast-DM in terms of collision resistance and preimage resistance. As old as Tandem-DM, the compression function Abreast-DM is one of the most well-known constructions for double block length compression functions. The bounds on the number of queries for collision resistance and preimage resistance are given by O (2). Based on a novel technique usin...

Intrinsic group behaviour: Dependence of pedestrian dyad dynamics on principal social and personal features

Being determined by human social behaviour, pedestrian group dynamics may depend on "intrinsic properties" such as the purpose of the pedestrians, their personal relation, gender, age, and body size. In this work we investigate the dynamical properties of pedestrian dyads (distance, spatial formation and velocity) by analysing a large data set of automatically tracked pedestrian trajectories in...

Moments of Discovery

Although the hypothesis presented has much experimental data to support it, the authors are quick to point out the limits of our present knowledge and indicate the areas where further investigation is needed. In their own words the ideas offered are at least tentative if not temporary. Whether or not the theories set forth will ultimately be proven correct is less important, for the reader come...