Invariants, mostly old ones

Concepts for Liver Segment Classification: Neither Old Ones nor New Ones, but a Comprehensive One

Concepts dealing with the subdivision of the human liver into independent vascular and biliary territories are applied routinely in radiological, surgical, and gastroenterological practice. Despite Couinaud's widely used eight-segments scheme, opinions on the issue differ considerably between authors. The aim of this article is to illustrate the scientific basis for understanding and harmonizin...

Finding 'new' occupational diseases and trends in 'old' ones.

Strategies for the reduction of risk to the health of workers, as well as the population in general, rely on the collection, analysis and interpretation of valid data to study work-related ill-health in relation to its determinants. In the developed world, through advances in occupational medicine and changing societal attitude reflected in legislation, the scourges of many occupational disease...

The young ones and the old: past & future of science

During recent years the scientific landscape has quickly changed due to technological advances and an explosion of ways to communicate. This new scientific landscape requires scientists to change their attitude from a mostly individualistic approach to collaboration within a group. The pace at which scientific research is performed has increased leading to a highly competitive environment chara...

Ebola therapy: Developing new drugs or repurposing old ones?

Using characteristic invariants to infer new spatial relationships from old

A method is presented for combining constraints imposed by spatial relationships between features of bodies. It is demonstrated that invariants of symmetry groups for these combined features can be computed in an efficient and practical way.