Jenny Holzer’s art revolves around outspoken texts that inhabit posters and signs, namelessly disseminated through the city. The ungendered authority voice in her first written pieces, Truisms (1977-1987) Inflammatory Essays (1978-1982), allowed to avoid any associations with femininity as traditionally understood, fuelling passers-by's critical reflection. Later career, parallel efforts establ...

Background& Aims: Gastric adenocarcinoma has been considered as an infectious disease since 1994, when the Helicobacter pylori (H. pylori) infection categorized as a definite class I human carcinogen. H. pylori uses extensive numbers of virulence factors to overcome host defence mechanisms. One independent H. pylori factor that plays an important role in determining H.pylori pathogenesisis vacu...

The unexpected discovery of the cosmic microwave background by Arno Penzias and Robert Wilson in 1965 is now the centerpiece of our understanding of the Big Bang and the subsequent evolution of the universe. (See PHYSICS TODAY, November 1997, page 32.) The discovery also set off something of a race to verify one of its implications for cosmic rays. In 1966, Kenneth Greisen (Cornell University) ...