104 research outputs found
Stability of Solid State Reaction Fronts
We analyze the stability of a planar solid-solid interface at which a
chemical reaction occurs. Examples include oxidation, nitridation, or silicide
formation. Using a continuum model, including a general formula for the
stress-dependence of the reaction rate, we show that stress effects can render
a planar interface dynamically unstable with respect to perturbations of
intermediate wavelength
Sophisticated falsification and research cycles: Consequences for differential character weighting in phylogenetic systematics
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72703/1/j.1463-6409.1997.tb00424.x.pd
Charting Evolution’s Trajectory: Using Molluscan Eye Diversity to Understand Parallel and Convergent Evolution
For over 100 years, molluscan eyes have been used as an example of convergent evolution and, more recently, as a textbook example of stepwise evolution of a complex lens eye via natural selection. Yet, little is known about the underlying mechanisms that create the eye and generate different morphologies. Assessing molluscan eye diversity and understanding how this diversity came about will be important to developing meaningful interpretations of evolutionary processes. This paper provides an introduction to the myriad of eye types found in molluscs, focusing on some of the more unusual structures. We discuss how molluscan eyes can be applied to the study of evolution by examining patterns of convergent and parallel evolution and provide several examples, including the putative convergence of the camera-type eyes of cephalopods and vertebrates
Molecular Phylogeny and Biogeography of the Native Rodents of Madagascar (Muridae: Nesomyinae): A Test of the Single-Origin Hypothesis
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72349/1/j.1096-0031.1999.tb00267.x.pd
An analysis of the thickness vibration of an unelectroded doubly-rotated quartz circular plate
Thickness-shear vibration of circular crystal plate in cylindrical shell as pressure sensor
Strengthening of Alumina by Reactions with Silicon Film on the Surface and Effects of Ion Irradiation
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