منابع مشابه
Poultry and the Paratyphoids
ALL TYPES of poultry are important reservoirs of paratyphoid infections. As applied to poultry diseases, the term ''paratyphoid" denotes diseases caused by micro-organisms of the Salmonella group other than Salmonella pullorum (puUorum disease) and Salmonella gallinarum (fowl typhoid). More than 60 of the 200-odd types of Salmonella that are known to exist cause diseases in poultry. With the ra...
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I am astonished at Lewis Wolpert’s claim that all the big principles in biology are understood — especially in developmental biology. If one knew all the principles then new facts would simply slot into their expected places, as they do in any well understood aspect of physics. But in all areas of biology bewildering new facts are discovered at an increasing rate. I frankly do not believe that ...
متن کاملThe Morgan pedigree
What is it famous for? Outside Australia, it is mainly known for killing rabbits, although this is far from a major function. The CSIRO's charter is to use science to benefit Australia — industrially, environmentally and socially. How does it help the environment? It is often heavily involved in campaigns against invaders such as rabbits and foxes. The CSIRO also supported the move to replace t...
متن کاملMorgan Dean
Introduction Landsat Thematic Mapper ( TM ) imagery was used to analyze patterns of landscape diversity in the seasonal tropical forests of northeastern Guatemala. TM radiance and the radiance coefficient of variation (CV) were significant in discriminating land-cover types. Cluster analysis of TM4, TM5, and TM7 radiance produced six distinct types of landcover. Green leaf biomass from TM4 and ...
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ژورنال
عنوان ژورنال: American Journal of Public Health
سال: 1925
ISSN: 0271-4353
DOI: 10.2105/ajph.15.1.17