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New plants of Gnetales from Early Cretaceous of China, and its bearing on the early evolution of Ephedraceae and Welwitschiaceae in Gnetales
Early Cretaceous north China Spinobractea Latibractea Constrobilus
2014/1/16
The Gnetales are a higher group of Gymnosperms, but our current knowledge of the morphology of the early Gnetales is lacking. Most known specimens are fragmentary, which makes it difficult to elucidat...
The Early Evolution of Primordial Pair-Instability Supernovae
Primordial Pair-Instability Supernovae
2011/1/10
The observational signatures of the first cosmic explosions and their chemical imprint on second-generation stars both crucially depend on how heavy elements mix within the star at the earliest stages...
Influence of vortex dynamics and atmospheric turbulence on the early evolution of a contrail
vortex dynamics atmospheric turbulence the early evolution of a contrail
2010/8/12
This study describes three-dimensional numerical simulations of the evolution of an aircraft contrail during the first 30 min following the emission of exhausts. The wake is modeled as a vortex pair d...
Joan Wood lecturer to discuss early evolution, balancing career and motherhood
evolutionary biology
2007/4/6
April 2, 2007,BLOOMINGTON, Ind. -- University of California at Berkeley evolutionary biologist Nicole King will discuss her work and its balancing with extracurricular life as the 2007 Joan Wood Lectu...