IVAR PAULSON (1922-1966)

Memorial: Sven-Ivar Seldinger

THE Jon~ivar. OF BIOLOGICAL CHEYISTRY

In pursuing quantitative histochemical investigations aimed at demonstrating the biochemical architecture of human frontal cortex (l-4), we found it necessary to determine ganglioside sialic acid in submicrogram amounts. Even when adapted to the microscale, spectrophotometric methods lack the sensitivity required for studying nervous tissue samples containing less than 0.3 pg of sialic acid. Si...

Stanley Cohen (1922- )

Stanley Cohen [5] was born on 17 November 1922 in Brooklyn, New York. His father was a tailor and his mother a housewife who immigrated to the United States from Russia in the early 1900s. Cohen spent his early education in the New York City public school system, and attended the city college, Brooklyn College [9], for his undergraduate studies. Brooklyn College [9] had no tuition, which allowe...

A tribute to Sven-Ivar Seldinger.

It is almost impossible to imagine life without things we grew up with, so it is a little hard for us to feel the thrill of angiographers when they first heard about the Seldinger technique [1]. Present-day radiologists cannot even guess how angiography could have been done without it. We are so used to this method that we have begun dropping the eponym, as it has become the “natural” way to in...

IVAR: A Conceptual Framework for Dependency Management

The design of software systems tend to degrade throughout time. Changes in code end up introducing new and unplanned dependencies among modules, causing the elegance of the design to be slowly lost in the form of structural patches and violations of previously established architectural rules. In this study, we propose a conceptual framework for dependency management. Our aim is to conceive a fr...