Research in extremely delicate environments must be sensitive to the need to minimize impacts caused simply through the presence of research personnel. This study investigates the effectiveness of current advice relating to travel on foot over Antarctic vegetation-free soils. These are based on the concentration of impacts through the creation of properly signed and identified paths. In order t...

The source of DNA for Deoxyribonuclease (DNase) producing bacteria in soil is the decaying plant cells, dead animal and bial cells. Very few organisms produce DNase extracellularly. Soil samples from different areas of Akola district (India) were screened for deoxyribonuclease production. Of the 100 soil samples screened; 10 efficient deoxyribonuclease producing bacteria were selected for morph...

A capillary tube holder, devised to minimize shadow effects during microscopic examination of haematocrit capillary tubes for trypanosomes, is described. A blood dispenser, designed to remove trypanosomes from centrifuged tubes, resulted in thinner smears of trypanosomes covering a smaller area. The anterior end of centrifuged trypanosomes was abnormally thickened and the kinetoplast displaced ...

The simplest models describing spinning particles with rigidity, both massive and massless, are reconsidered. The moduli spaces of solutions are completely exhibited in backgrounds with constant curvature. While spinning massive particles can evolve fully along helices in any three-dimensional background, spinning massless particles need anti De Sitter background to be consistent. The main mach...