STUDIES ON HEAT RESISTANCE IV

Studies on Resistance to Antibiotics

The discovery of gramicidin, penicillin, streptomycin, and the numerous other antibiotics known today has contributed materially to the list of therapeutic agents available against micro-organisms. However, the immediate enthusiasm which greeted their introduction has had to be checked by the realization that many of the important organisms affected readily develop resistance to the antibiotic ...

Comparative studies on micro heat exchanger optimisation

Although many methods for dealing with multi-objective optimisation (MOO) problems are available [Deb01] and successful applications have been reported [Coe01], the comparison between MOO methods applied to real-world problem was rarely carried out. This paper reports the comparison between MOO methods applied to a real-world problem, namely, the optimisation of a micro heat exchanger ( HEX). T...

Tumor Resistance Studies on In Vitro Studies on

Studies on Self-Sterility. IV. Selective Fertilization.

INTRODUCTION .................................................................. 346 Discussion of the problem ..................................................... 348 Pollen-tube frequency distributions ............................................. 349 Influence of growth of compatible pollen tubes upon incompatible pollen tubes.. .. 352 SUMMARY AND DISCUSSION ....................................

Structural studies on human type IV collagen.

Type IV collagen was isolated from limited pepsin digests of human placenta by selective salt precipitation at acidic and neutral pH. The native protein was resistant to human skin collagenase but was cleaved by a rat mast cell protease. Molecular sieve chromatography of the reduced and alkylated material separated relatively homogeneous components of molecular weight 140,000 (140K) and 100,000...