Hermann Lautensach (1886-1971)

Georg Haas (1886–1971): The Forgotten Hemodialysis Pioneer {December 2001}

The first human hemodialysis in the history of medicine was performed by Georg Haas in 1924 in the town of Giessen, Germany. The procedure lasted only 15 minutes, and hirudin served as the anticoagulant. Haas was able to develop a dialyzer consisting of U-shaped collodion tubes immersed in a dialysate bath placed in a glass cylinder. He performed several hemodialysis procedures in uremics betwe...

Hermann Scharfetter

The concept of wave propagation and the interaction of waves with matter is pivotal in many fields of physics and engineering (e. g. radio transmission, optics, sound propagation, transmission of information in waveguides...). Therefore wave propagation plays a central role in teaching physics, electrical engineering, information technology etc. from the undergraduate level (undergratuate engin...

1971 , Volume , Issue Feb-1971

This impressive or CAÃ, system makes impressive contributions to the state of the art of CAI. It's a combination of field-proven hardware, a standard computer language, and well tested curricula. The first curriculum is an elementary mathematics drill and practice program. THAT A NEW PRODUCT SHOULD contribute substantially to the state of the art has long been a philosophical tenet at Hewlett-P...

Op-gbev130144 1886..1901

Transposable elements (TEs) are a dominant feature of most flowering plant genomes. Together with other accepted facilitators of evolution, accumulating data indicate that TEs can explain much about their rapid evolution and diversification. Genome size in angiosperms is highly correlated with TE content and the overwhelming bulk (>80%) of large genomes can be composed of TEs. Among retro-TEs, ...

Edward Hindle, 1886-1973.