Results 351 to 360 of about 4,863,377 (394)
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1957
Publisher Summary A virus may have oscillated in the course of evolution, between being an independent parasite and a cell constituent. It is wrong to think of the evolution of methods of transmission as proceeding always in one direction. Bacteria infecting insects by the horizontal route could have evolved into symbionts, transmitted vertically ...
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Publisher Summary A virus may have oscillated in the course of evolution, between being an independent parasite and a cell constituent. It is wrong to think of the evolution of methods of transmission as proceeding always in one direction. Bacteria infecting insects by the horizontal route could have evolved into symbionts, transmitted vertically ...
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Genetic Evolution of Hepatitis E Virus
2023Comparative analysis of the genomic sequences of multiple hepatitis E virus (HEV) isolates has revealed extensive genomic diversity among them. Recently, a variety of genetically distinct HEV variants have also been isolated and identified from large numbers of animal species, including birds, rabbits, rats, ferrets, bats, cutthroat trout, and camels ...
Qiyu, He +4 more
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2008
Questions and Concepts in Plant Virus Evolution: a Historical Perspective.- Community Ecology of Plant Viruses.- Emerging Plant Viruses: a Diversity of Mechanisms and Opportunities.- Evolution of Integrated Plant Viruses.- Viroids.- Virus Populations, Mutation Rates and Frequencies.- Genetic Bottlenecks.- Recombination in Plant RNA Viruses.- Symbiosis,
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Questions and Concepts in Plant Virus Evolution: a Historical Perspective.- Community Ecology of Plant Viruses.- Emerging Plant Viruses: a Diversity of Mechanisms and Opportunities.- Evolution of Integrated Plant Viruses.- Viroids.- Virus Populations, Mutation Rates and Frequencies.- Genetic Bottlenecks.- Recombination in Plant RNA Viruses.- Symbiosis,
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1964
Am Ende unseres Diskurses uber das scheinbar sehr spezielle, in Wirklichkeit jedoch zur Beantwortung fundamentalster Fragen der Biologie hinfuhrende Virusproblem durfen wir wohl getrost zu wissen behaupten, was Virus ist. Sind wir aber deshalb in der Lage, unser Wissen in knappen Worten auszudrucken?
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Am Ende unseres Diskurses uber das scheinbar sehr spezielle, in Wirklichkeit jedoch zur Beantwortung fundamentalster Fragen der Biologie hinfuhrende Virusproblem durfen wir wohl getrost zu wissen behaupten, was Virus ist. Sind wir aber deshalb in der Lage, unser Wissen in knappen Worten auszudrucken?
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Virus – Evolution – 3D Propellers
Zeitschrift für Kristallographie – Crystalline Materials, 2014Abstract For two different polyhedra, the cube and the rhombic dodecahedron, there are an infinite number of closely related polyhedra. We find the same for the icosahedron and dodecahedron. We show with direct mathematical methods how an unlimited number of different structures
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Origin and evolution of Nipah virus
Journal of Medical Virology, 2015Nipah virus, member of the Paramyxoviridae family, is classified as a Biosafety Level‐4 agent and category C priority pathogen. Nipah virus disease is endemic in south Asia and outbreaks have been reported in Malaysia, Singapore, India, and Bangladesh. Bats of the genus Pteropus appear to be the natural reservoir of this virus.
A. Lo Presti +6 more
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Baboon endogenous virus evolution and ecology
Trends in Microbiology, 1996Cross-species transmission of retroviruses among primates has recently been recognized as the source of the current epidemics of HIV-1, HIV-2 and human T cell leukemia virus type 1 (HTLV-1). The distribution of baboon endogenous virus among non-human primates resembles that of exogenous viruses and appears to be a consequence of different primate ...
van der Kuyl, A. C. +2 more
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Nederlands tijdschrift voor geneeskunde, 2010
Viruses have long been held to be derailed cellular elements with a parasitic replication cycle: since without a cell there is no virus. However, the explosion in recently acquired molecular data from genome and protein sequences leads to a completely different view: viruses contain sequences which are unique in the biosphere, which is difficult to ...
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Viruses have long been held to be derailed cellular elements with a parasitic replication cycle: since without a cell there is no virus. However, the explosion in recently acquired molecular data from genome and protein sequences leads to a completely different view: viruses contain sequences which are unique in the biosphere, which is difficult to ...
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The Variety of Human Virus Evolution
Molecular Phylogenetics and Evolution, 1996There have been many wise suggestions of ways that evolution may occur but those ways seem often hard to support with good examples. Viruses have proven to be replete with some of these items. This paper reviews work that shows: (1) very fast rates of evolution; (2) positive Darwinian selection with the selective pressure specifically identified; (3 ...
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Cervical cancer prevention and control in women living with human immunodeficiency virus
Ca-A Cancer Journal for Clinicians, 2021Philip E Castle, Vikrant V Sahasrabuddhe
exaly