Results 271 to 280 of about 927,917 (298)
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Trends in Cell Biology, 2000
Recent data have revealed that the tubulin superfamily of proteins is much larger than was thought previously. Six distinct families within the tubulin superfamily have been discovered and more might await discovery. alpha-, beta- and gamma-tubulins are ubiquitous in eukaryotes.
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Recent data have revealed that the tubulin superfamily of proteins is much larger than was thought previously. Six distinct families within the tubulin superfamily have been discovered and more might await discovery. alpha-, beta- and gamma-tubulins are ubiquitous in eukaryotes.
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Review: Literature and Arts of the Americas, 1990
(1990). The discourse of abundance. Review: Literature and Arts of the Americas: Vol. 24, No. 43, pp. 3-7.
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(1990). The discourse of abundance. Review: Literature and Arts of the Americas: Vol. 24, No. 43, pp. 3-7.
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Astrophysics and Space Science, 2001
To start things going, the following topics were suggested:* 1. Reliability of abundances Stars vs H ii regions H ii classical diagnostics Effects of shocks and inhomogeneities on H ii-region diagnostics H n new diagnostics Can reliable H ii-region diagnostics be developed for high metallicity?
Michael Edmunds, B. E. J. Pagel
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To start things going, the following topics were suggested:* 1. Reliability of abundances Stars vs H ii regions H ii classical diagnostics Effects of shocks and inhomogeneities on H ii-region diagnostics H n new diagnostics Can reliable H ii-region diagnostics be developed for high metallicity?
Michael Edmunds, B. E. J. Pagel
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2009
Publisher Summary This chapter covers the abundance estimation, the range of techniques by which the size of a population of marine mammals can be estimated. When it is difficult to estimate absolute abundance with an acceptably low bias, relative abundance indices are often used instead.
Anne E. York, Stephen T. Buckland
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Publisher Summary This chapter covers the abundance estimation, the range of techniques by which the size of a population of marine mammals can be estimated. When it is difficult to estimate absolute abundance with an acceptably low bias, relative abundance indices are often used instead.
Anne E. York, Stephen T. Buckland
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Space Science Reviews, 2003
Isotopic ratios in comets provide keys for the understanding of the origin of cometary material, and the physical and chemical conditions in the early Solar Nebula. We review here measurements acquired on the D/H, 12C/13C, 16O/18O, 14N/15N, 32S/34S ratios in dust and gases, and discuss their cosmogonic implications.
Altwegg, Kathrin +1 more
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Isotopic ratios in comets provide keys for the understanding of the origin of cometary material, and the physical and chemical conditions in the early Solar Nebula. We review here measurements acquired on the D/H, 12C/13C, 16O/18O, 14N/15N, 32S/34S ratios in dust and gases, and discuss their cosmogonic implications.
Altwegg, Kathrin +1 more
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Abundances of the elements: Meteoritic and solar
, 1989E. Anders, N. Grevesse
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2018
This chapter examines one of the most prominent themes which recur in urban panegyric: the city’s ability to generate and apply commerce and resources. This was deemed a specifically urban phenomenon and, especially from the twelfth century onwards, received the most scathing critique.
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This chapter examines one of the most prominent themes which recur in urban panegyric: the city’s ability to generate and apply commerce and resources. This was deemed a specifically urban phenomenon and, especially from the twelfth century onwards, received the most scathing critique.
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A redetermination of the isotopic abundances of atmospheric Ar
, 2006Jee-Yon Lee +6 more
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A comparison of selected mRNA and protein abundances in human liver
Electrophoresis, 1997L. Anderson, J. Seilhamer
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