Results 311 to 320 of about 1,901,326 (324)
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ON CANONICAL GENUS AND FREE GENUS OF KNOT
Journal of Knot Theory and Its Ramifications, 1996We show that the differences between canonical genus and free genus, and differences between free genus and usual genus of a knot can be arbitrarily large.
Tsuyoshi Kobayashi, Masako Kobayashi
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A general problem in biology is how to incorporate information about evolutionary history and adaptation into taxonomy. The problem is exemplified in attempts to define our own genus, Homo . Here conventional criteria for allocating fossil species to Homo are reviewed and are found to be ...
Bernard Wood, Mark Collard
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Annual Review of Microbiology, 1978
Some members of the genus Campylobacter are pathogens for man and animals while others are considered nonpathogenic. Campylobacter fetus causes abortion and reproductive disease in cattle and sheep. In man, C. fetus is associated with many conditions, such as septicemia, septic arthritis, meningoencephalitis, meninigitis, abortion, endocarditis ...
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Some members of the genus Campylobacter are pathogens for man and animals while others are considered nonpathogenic. Campylobacter fetus causes abortion and reproductive disease in cattle and sheep. In man, C. fetus is associated with many conditions, such as septicemia, septic arthritis, meningoencephalitis, meninigitis, abortion, endocarditis ...
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The Journal of Protozoology, 1964
SYNOPSIS. Dactylosoma is a genus of blood protozoa which undergo schizogony, without producing pigment, in the red cells of the lower vertebrates, especially amphibia. The best known species is D. ranarum, but even for this species the life cycle, except as it occurs in the erythrocyte, and the vector remain unknown. Study of slides from the blood of
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SYNOPSIS. Dactylosoma is a genus of blood protozoa which undergo schizogony, without producing pigment, in the red cells of the lower vertebrates, especially amphibia. The best known species is D. ranarum, but even for this species the life cycle, except as it occurs in the erythrocyte, and the vector remain unknown. Study of slides from the blood of
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Antonie van Leeuwenhoek, 1982
The genus Apodachlya Pringsheim is revised and restricted to three species, of which descriptions and illustrations are given. On the basis of a study of pure cultures, it is concluded that A. punctata Minden is identical with A. brachynema (Hildebrand) Pringsheim.
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The genus Apodachlya Pringsheim is revised and restricted to three species, of which descriptions and illustrations are given. On the basis of a study of pure cultures, it is concluded that A. punctata Minden is identical with A. brachynema (Hildebrand) Pringsheim.
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The nonadditivity of the genus
Israel Journal of Mathematics, 1974A class of cubic graphs is introduced for which the genus is a nonadditive function of the genus of subgraphs. This provides a small (28 node) counterexample to Duke’s conjecture concerning the relation of the Betti number to the genus of a graph.
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1981
The first description of a bacterium that produced twisted bundles of thin filaments which contained oxidized iron was given by Cholodny (1924). He called this organism Leptothrix trichogenes, the filament-producing Leptothrix. The flexible bacterium was observed in a water basin next to the river Dnjepr near Kiew, Russia. Its cells (diameter approx. 0.
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The first description of a bacterium that produced twisted bundles of thin filaments which contained oxidized iron was given by Cholodny (1924). He called this organism Leptothrix trichogenes, the filament-producing Leptothrix. The flexible bacterium was observed in a water basin next to the river Dnjepr near Kiew, Russia. Its cells (diameter approx. 0.
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1981
Light-microscopic investigation of the microorganisms in the hypolimnion shows, in many lakes, the presence of a highly diverse population of bacteria. Here, most of the recognizable forms have never been cultured and many of them have not even been reported.
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Light-microscopic investigation of the microorganisms in the hypolimnion shows, in many lakes, the presence of a highly diverse population of bacteria. Here, most of the recognizable forms have never been cultured and many of them have not even been reported.
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