Results 241 to 250 of about 52,856 (278)
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Parasitology Today, 1992
After more than 70 years of intermittent debate over the true relationship between the 'pathogenic' and 'non-pathogenic' forms of Entamoeba histolytica, the application of molecular biology has finally yielded an unambiguous answer: these are not interconvertible phenotypes of the same parasite, a kind of unicellular Jekyll and Hyde, but two quite ...
W.M. Spice, John P. Ackers
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After more than 70 years of intermittent debate over the true relationship between the 'pathogenic' and 'non-pathogenic' forms of Entamoeba histolytica, the application of molecular biology has finally yielded an unambiguous answer: these are not interconvertible phenotypes of the same parasite, a kind of unicellular Jekyll and Hyde, but two quite ...
W.M. Spice, John P. Ackers
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Journal of Symbolic Logic, 1995
AbstractWe define the ideal with the property that a real omits all Borel sets in the ideal which are coded in a transitive model if and only if it is an amoeba real over this model. We investigate some other properties of this ideal. Strolling through the "amoeba forest" we gain as an application a modification of the proof of the inequality between ...
Judah, Haim, Repický, Miroslav
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AbstractWe define the ideal with the property that a real omits all Borel sets in the ideal which are coded in a transitive model if and only if it is an amoeba real over this model. We investigate some other properties of this ideal. Strolling through the "amoeba forest" we gain as an application a modification of the proof of the inequality between ...
Judah, Haim, Repický, Miroslav
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Scientific American, 2014
The article discusses research by forensic biologist Ildiko Szelecz of the University of Neuchatel and colleagues published in the journal "Forensic Science International" into the use of microorganisms to help determine the time of death of older corpses.
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The article discusses research by forensic biologist Ildiko Szelecz of the University of Neuchatel and colleagues published in the journal "Forensic Science International" into the use of microorganisms to help determine the time of death of older corpses.
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Studies of the DNA of Amoeba proteus and Amoeba indica
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 19821. The G + C content of the DNAs of Amoeba proteus and Amoeba indica was determined by buoyant density gradient centrifugation. 2. Generally, different clones of the same strains did not differ in the G + C content of their main DNA or their satellite DNA. 3. The G + C content of the main DNA of the TD and XD strains of A.
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The biochemical composition of the free-living Amoebae Chaos chaos, amoeba dubia and Amoeba proteus
Comparative Biochemistry and Physiology, 1968Abstract 1. 1. The biochemical compositions of the free-living amoebae Chaos chaos, Amoeba dubia , and Amoeba proteus were determined. 2. 2. The percentages of protein, phospholipid and RNA per dry weight were different in each species. 3. 3.
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1973
The amoeba is said to be one of the simplest organisms to show behavior. By this I mean that its spontaneous activity is modified and modulated by changes in the environment. It responds adaptively to various kinds of physical and chemical stimuli and wages battle with both predators and prey.
R. D. Allen, M. Haberey
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The amoeba is said to be one of the simplest organisms to show behavior. By this I mean that its spontaneous activity is modified and modulated by changes in the environment. It responds adaptively to various kinds of physical and chemical stimuli and wages battle with both predators and prey.
R. D. Allen, M. Haberey
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Amoeba-flagellate transformation
Experimental Cell Research, 1961Abstract The amoeba, Naegleria gruberi, changes from the amoeboid form to a free-swimming flagellate form in about two hours after it is transferred to distilled water. The change involves the development of a strong polarity and an alteration in the character of the membrane. The cation content of the medium is a controlling factor.
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Annual Review of Microbiology, 1971
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . 27 THE LARGE AMOEBAE AS EXPERIMENTAL ORGANISMS. . . . . . . . . . . . . . . . . . . . . . 28 Taxonomy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . 27 THE LARGE AMOEBAE AS EXPERIMENTAL ORGANISMS. . . . . . . . . . . . . . . . . . . . . . 28 Taxonomy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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, 2006 The amoeba and ciliates are protozoan parasites that have been causing illness in humans since antiquity. The most relevant foodborne parasites of these groups are Entamoeba histolytica and Balantidium coli. Entamoeba dispar has been identified mostly in asymptomatic patients however, reports demonstrating invasive amebiasis caused by E.
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