Results 201 to 210 of about 126,883 (248)
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The Universal Ancestor and the Ancestor of Bacteria Were Hyperthermophiles
Journal of Molecular Evolution, 2003The definition of the node of the last universal common ancestor (LUCA) is justified in a topology of the unrooted universal tree. This definition allows previous analyses based on paralogous proteins to be extended to orthologous ones. In particular, the use of a thermophily index (based on the amino acids' propensity to enter the [hyper] thermophile ...
Massimo Di Giulio, Di Giulio Massimo
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Journal of Cellular Physiology, 2006
AbstractHemichordates, the phylum of bilateral animals closest to chordates, can illuminate the evolutionary origins of various chordate traits to determine whether these were already present in a shared ancestor (the deuterostome ancestor) or were evolved within the chordate line.
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AbstractHemichordates, the phylum of bilateral animals closest to chordates, can illuminate the evolutionary origins of various chordate traits to determine whether these were already present in a shared ancestor (the deuterostome ancestor) or were evolved within the chordate line.
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2021
This chapter traces the long foreground of radical Black art and African American cultural institutions in the South from the New Negro Renaissance in the 1920s through the Left political and cultural milieu of the 1930s and 1940s to the Civil Rights upsurge of the 1950s and early 1960s.
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This chapter traces the long foreground of radical Black art and African American cultural institutions in the South from the New Negro Renaissance in the 1920s through the Left political and cultural milieu of the 1930s and 1940s to the Civil Rights upsurge of the 1950s and early 1960s.
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1992
Abstract In the beginning there was poetry: a need to respond aurally to aural stimuli. Robert Creeley records this from Bunting’s conversation: ‘He said, too, that the possibilities of poetry for himself had become most evident when he first realized that the modulation of sounds in a poem might be agent of emotions as actually as ...
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Abstract In the beginning there was poetry: a need to respond aurally to aural stimuli. Robert Creeley records this from Bunting’s conversation: ‘He said, too, that the possibilities of poetry for himself had become most evident when he first realized that the modulation of sounds in a poem might be agent of emotions as actually as ...
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2009
Abstract On August 2, 1978, while searching for bones and tools at Laetoli, thirty miles south of Olduvai Gorge in northern Tanzania, paleontologists Mary Leakey and Paul Abell discovered a seriesnof footprints about 3.6 million years old traceable to human ancestors. Studying the pattern of the prints, Leakey concluded that three people,
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Abstract On August 2, 1978, while searching for bones and tools at Laetoli, thirty miles south of Olduvai Gorge in northern Tanzania, paleontologists Mary Leakey and Paul Abell discovered a seriesnof footprints about 3.6 million years old traceable to human ancestors. Studying the pattern of the prints, Leakey concluded that three people,
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The Level Ancestor Problem simplified
Theoretical Computer Science, 2004Michael A Bender
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