Výsledky vyhledávání - "Graham David E"

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Orbital evolution of potentially habitable planets of tidally interacting binary stars

Autor: Graham, David E., Fleming, David P., Barnes, Rory

Publikováno v: A&A 650, A178 (2021)

We simulate the coupled stellar and tidal evolution of short-period binary stars (orbital period $P_{orb} \lsim$8 days) to investigate the orbital oscillations, instellation cycles, and orbital stability of circumbinary planets (CBPs). We consider tw

Externí odkaz: http://arxiv.org/abs/2011.10430

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Akademický článek

Combined inactivation of the Clostridium cellulolyticum lactate and malate dehydrogenase genes substantially increases ethanol yield from cellulose and switchgrass fermentations

Autor: Li Yongchao, Tschaplinski Timothy J, Engle Nancy L, Hamilton Choo Y, Rodriguez Miguel, Liao James C, Schadt Christopher W, Guss Adam M, Yang Yunfeng, Graham David E

Publikováno v: Biotechnology for Biofuels, Vol 5, Iss 1, p 2 (2012)

Abstract Background The model bacterium Clostridium cellulolyticum efficiently degrades crystalline cellulose and hemicellulose, using cellulosomes to degrade lignocellulosic biomass. Although it imports and ferments both pentose and hexose sugars to

Externí odkaz: https://doaj.org/article/6458e310ef3d41f59329a7d3aec2acb9

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Akademický článek

Independent inactivation of arginine decarboxylase genes by nonsense and missense mutations led to pseudogene formation in Chlamydia trachomatis serovar L2 and D strains

Autor: Graham David E, Fisher Derek J, Giles Teresa N

Publikováno v: BMC Evolutionary Biology, Vol 9, Iss 1, p 166 (2009)

Abstract Background Chlamydia have reduced genomes that reflect their obligately parasitic lifestyle. Despite their different tissue tropisms, chlamydial strains share a large number of common genes and have few recognized pseudogenes, indicating gen

Externí odkaz: https://doaj.org/article/f0a98bffe7ad4416bcd68ade0083fe5f

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On The Lack of Circumbinary Planets Orbiting Isolated Binary Stars

Autor: Fleming, David P., Barnes, Rory, Graham, David E., Luger, Rodrigo, Quinn, Thomas R.

We outline a mechanism that explains the observed lack of circumbinary planets (CBPs) via coupled stellar-tidal evolution of isolated binary stars. Tidal forces between low-mass, short-period binary stars on the pre-main sequence slow the stellar rot

Externí odkaz: http://arxiv.org/abs/1804.03676

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