Results 11 to 20 of about 1,838,056 (157)

The evolution of Giant Molecular Filaments [PDF]

, 2017
In recent years there has been a growing interest in studying giant molecular filaments (GMFs), which are extremely elongated (> 100pc in length) giant molecular clouds (GMCs).
Dobbs, C. L., Duarte-Cabral, A.
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Galaxy chemical evolution models: The role of molecular gas formation [PDF]

, 2017
In our classical grid of multiphase chemical evolution models, star formation in the disc occurs in two steps: first, molecular gas forms, and then stars are created by cloud-cloud collisions or interactions of massive stars with the surrounding ...
Ascasibar, Yago, Díaz, Angeles I., Díaz, Ángeles I., Gibson, Brad K., Mollá, Mercedes   +4 more
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Molecular Evolution in Collapsing Prestellar Cores [PDF]

, 2001
We have investigated the evolution and distribution of molecules in collapsing prestellar cores via numerical chemical models, adopting the Larson-Penston solution and its delayed analogues to study collapse.
Brown P. D., Eric Herbst, Hasegawa T. I., Larson R. B., Lee H.-H., Leger A., Nagayoshi Ohashi, Nakano T., Penston M. V., Rawlings J. M. C., Shigehisa Takakuwa, Shu‐ichiro Inutsuka, Umebayashi T., Whitworth A., Yamamoto T., Yuri Aikawa   +15 more
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Microbial Community Structure Driven by a Volcanic Gradient in Glaciers of the Antarctic Archipelago South Shetland

Microorganisms, 2021
It has been demonstrated that the englacial ecosystem in volcanic environments is inhabited by active bacteria. To know whether this result could be extrapolated to other Antarctic glaciers and to study the populations of microeukaryotes in addition to ...
Eva García-Lopez, Sandra Serrano, Miguel Angel Calvo, Sonia Peña Perez, Silvia Sanchez-Casanova, Laura García-Descalzo, Cristina Cid   +6 more
doaj   +1 more source

Elusive data underlying debate at the prokaryote-eukaryote divide

Biology Direct, 2018
Background The origin of eukaryotic cells was an important transition in evolution. The factors underlying the origin and evolutionary success of the eukaryote lineage are still discussed.
Marie Gerlitz, Michael Knopp, Nils Kapust, Joana C. Xavier, William F. Martin   +4 more
doaj   +1 more source

W(h)ither Fossils? Studying Morphological Character Evolution in the Age of Molecular Sequences [PDF]

, 2008
A major challenge in the post-genomics era will be to integrate molecular sequence data from extant organisms with morphological data from fossil and extant taxa into a single, coherent picture of phylogenetic relationships; only then will these ...
Bull J. J., Cuevas J., Desutter-Grandcolas L., Eernisse D. J., Elizabeth J. Hermsen, Giribet G., Grande L., Hedges S. B., Hermsen E. J., Horovitz I., Horovitz I., Jonathan R. Hendricks, Luckow M., Montgelard C., Norell M. A., Novacek M. J., O'Leary M., Rowe T., Simmons N. B., Wiens J. J., Xiang Q-Y. J., Zhang J.   +21 more
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Selective pressures on genomes in molecular evolution [PDF]

, 2003
We describe the evolution of macromolecules as an information transmission process and apply tools from Shannon information theory to it. This allows us to isolate three independent, competing selective pressures that we term compression, transmission ...
Adami, Adami, Adami, Ancel, Baake, Baake, Burch, Bürger, Cavalier-Smith, Charles Ofria, Christoph Adami, Clarke, Dawkins, Gatlin, Gerhart, Gibson, Kimura, Lenski, Mather, Mills, Modiano, Pavesi, Queitsch, Rutherford, Schneider, Schneider, Travis C. Collier, van Nimwegen, Waddington, Wagner, Wagner, Wilke, Wilke, Wilke, Wilke   +34 more
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A Hierarchical Approach to Protein Molecular Evolution [PDF]

, 1999
Biological diversity has evolved despite the essentially infinite complexity of protein sequence space. We present a hierarchical approach to the efficient searching of this space and quantify the evolutionary potential of our approach with Monte Carlo ...
Crameri, Cwirla, Davidson, Devlin, Fisch, Gilbert, Gilbert, Gram, Griffiths, Hawkins, Kamtekar, Kauffman, Kauffman, Kepler, L. D. Bogarad, Lawrence, M. W. Deem, Maeshiro, Mandecki, Moore, Netzer, Patten, Pennisi, Perelson, Riddle, Scott, Shapiro, Shapiro, Stemmer, Stemmer, Zhang   +30 more
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Integrating influenza antigenic dynamics with molecular evolution. [PDF]

, 2013
Influenza viruses undergo continual antigenic evolution allowing mutant viruses to evade host immunity acquired to previous virus strains. Antigenic phenotype is often assessed through pairwise measurement of cross-reactivity between influenza strains ...
Abed, Ansaldi, Ansaldi, Barr, Barr, Bedford, Bedford, Bogner, Borodin, Cai, Centers for Disease Control and Prevention, Chakraverty, Chakraverty, Cox, Cox, Daniels, Daum, Daum, Donatelli, Drummond, Edgar, Ferguson, Fitch, Gog, Goldstein, Gust, Hay, Hay, Hay, Hay, Hay, Hay, Hay, Hay, Hay, Hay, Hay, Hay, Hay, Hay, Hensley, Hirst, Kanegae, Kendal, Klimov, Koel, Lemey, Li, Lin, Lin, Lin, Lin, Matsuzaki, McCauley, McCauley, McCauley, McCauley, McCauley, McDonald, Muyanga, Nakagawa, Nakajima, Nakajima, Nakajima, Nelson, Nerome, Oh, Osterholm, Pagel, Pereira, Puzelli, Pybus, Raymond, Rota, Russell, Shapiro, Shaw, Smith, Squires, Stevens, Webster, Wiley, World Health Organization, Xu   +83 more
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Molecular Cloud Evolution VI. Measuring cloud ages [PDF]

, 2018
This article has been published in Monthly Notices of the Royal Astronomical Society © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.
Ansdell, Audit, Ballesteros-Paredes, Ballesteros-Paredes, Bally, Banerjee, Bigiel, Blitz, Burkert, Burkhart, Carroll-Nellenback, Clark, Colín, Currie, Da Rio, Da Rio, Enrique Vázquez-Semadeni, Evans, Federrath, Federrath, Ferrière, Field, Franco, Gao, Getman, Girichidis, Hartmann, Heiles, Heitsch, Heitsch, Heitsch, Heitsch, Hennebelle, Hennebelle, Hennebelle, Hillenbrand, Hopkins, Hunter, Ibáñez-Mejía, Jan Forbrich, Kainulainen, Kawamura, Klessen, Koda, Koyama, Koyama, Kritsuk, Kroupa, Kruijssen, Kruijssen, Krumholz, Lada, Lada, Lee, Lin, Lombardi, Manuel Zamora-Avilés, McCrea, Molinari, Murray, Murray, Padoan, Padoan, Palla, Palla, Passot, Povich, Roberto Galván-Madrid, Robertson, Schneider, Tobin, Vishniac, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Völschow, Walder, Wolfire, Zamora-Avilés, Zamora-Avilés   +84 more
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