Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Roy Markham"'
Publikováno v:
Nature. 159(4043)
ELECTRON microscopy has shown the regular way in which the elementary particles, or molecules, of the southern bean mosaic virus are arranged in its crystals1. Not all crystallizable viruses are equally easy to examine in this fashion ; but we have f
Publikováno v:
Micron (1969). 9:227-236
The apparatus was designed to convert the information on a photographic transparency (electron micrograph) into a form compatible with the inputs of an IBM1130 computer with WDV interface. The transparency is an enlarged area from an electron microgr
Autor:
Roy Markham
Publikováno v:
British Medical Bulletin. 10:214-217
Publikováno v:
Virology. 20:88-102
Methods are described for increasing the amount of information obtainable from electron micrographs of virus particles. To obtain an increase in image contrast, and to render small detail more easily visible, a method of optical differentiation is em
Autor:
Roy Markham
Publikováno v:
Cold Spring Harbor Symposia on Quantitative Biology. 18:141-148
Publikováno v:
Parasitology. 34:315-352
In this review we have given an account of the various methods which are available to determine the size of virus particles. In § IV we have endeavoured to bring the ultrafiltration method into agreement with other methods by suggesting a different
Autor:
Roy Markham
Publikováno v:
Progress in Biophysics and Biophysical Chemistry. 3:61-87
Autor:
Roy Markham, Kenneth M. Smith
Publikováno v:
Parasitology. 39:330-342
A new virus affecting cruciferous plants is described and the name suggested for it is theturnip yellow mosaic virus.The virus is sap-transmissible and has a dilution end-point in extracted sap of 10−5. The thermal inactivation point lies between 7
Publikováno v:
Biochemical Journal. 60:8-15
Publikováno v:
Journal of the American Chemical Society. 81:6075-6080