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Articles 1 - 4 of 4

Full-Text Articles in Life Sciences

Characterizing The Evolutionary Path(S) To Early Homo, Lauren Schroeder, Charles C. Roseman, James M. Cheverud, Rebecca R. Ackermann Oct 2017

Characterizing The Evolutionary Path(S) To Early Homo, Lauren Schroeder, Charles C. Roseman, James M. Cheverud, Rebecca R. Ackermann

James Cheverud

Numerous studies suggest that the transition from Australopithecus to Homo was characterized by evolutionary innovation, resulting in the emergence and coexistence of a diversity of forms. However, the evolutionary processes necessary to drive such a transition have not been examined. Here, we apply statistical tests developed from quantitative evolutionary theory to assess whether morphological differences among late australopith and early Homo species in Africa have been shaped by natural selection. Where selection is demonstrated, we identify aspects of morphology that were most likely under selective pressure, and determine the nature (type, rate) of that selection. Results demonstrate that selection must …


Ap1 Balance Between Concentration And Charge Is A Donnan Equilibrium, Paul D. Heideman Jun 2017

Ap1 Balance Between Concentration And Charge Is A Donnan Equilibrium, Paul D. Heideman

Paul Heideman

No abstract provided.


Ap2- Resting Potential Of A Typical Cell, Paul D. Heideman Jun 2017

Ap2- Resting Potential Of A Typical Cell, Paul D. Heideman

Paul Heideman

No abstract provided.


Ap3 Voltage Gated Sodium Channels First Half Of An Action Potential, Paul D. Heideman Jun 2017

Ap3 Voltage Gated Sodium Channels First Half Of An Action Potential, Paul D. Heideman

Paul Heideman

No abstract provided.