Evolutionary Divergence, Shape Change, and Genetic Correlation Structure in the Rodent Mandible

1992 ◽  
Vol 41 (2) ◽  
pp. 196 ◽  
Author(s):  
William R. Atchley ◽  
David E. Cowley ◽  
Claus Vogl ◽  
Tracy McLellan
Keyword(s):  
Genetic Correlation ◽  
Shape Change ◽  
Correlation Structure ◽  
Evolutionary Divergence

Evolutionary Divergence, Shape Change, and Genetic Correlation Structure in the Rodent Mandible

1992 ◽  
Vol 41 (2) ◽  
pp. 196-221 ◽  
Author(s):  
W. R. Atchley ◽  
D. E. Cowley ◽  
C. Vogl ◽  
T. McLellan
Keyword(s):  
Genetic Correlation ◽  
Shape Change ◽  
Correlation Structure ◽  
Evolutionary Divergence

scholarly journals RESISTANCE OF GENETIC CORRELATION STRUCTURE TO DIRECTIONAL SELECTION INDROSOPHILA MELANOGASTER

Evolution ◽  
1990 ◽  
Vol 44 (8) ◽  
pp. 1990-2003 ◽  
Author(s):  
Gerald S. Wilkinson ◽  
Kevin Fowler ◽  
Linda Partridge
Keyword(s):  
Genetic Correlation ◽  
Directional Selection ◽  
Correlation Structure

scholarly journals Adapt-Mix: learning local genetic correlation structure improves summary statistics-based analyses

2015 ◽  
Vol 31 (12) ◽  
pp. i181-i189 ◽  
Author(s):  
Danny S. Park ◽  
Brielin Brown ◽  
Celeste Eng ◽  
Scott Huntsman ◽  
Donglei Hu ◽  
...  
Keyword(s):  
Genetic Correlation ◽  
Correlation Structure ◽  
Summary Statistics

Resistance of Genetic Correlation Structure to Directional Selection in Drosophila melanogaster

Evolution ◽  
1990 ◽  
Vol 44 (8) ◽  
pp. 1990 ◽  
Author(s):  
Gerald S. Wilkinson ◽  
Kevin Fowler ◽  
Linda Partridge
Keyword(s):  
Drosophila Melanogaster ◽  
Genetic Correlation ◽  
Directional Selection ◽  
Correlation Structure

Role of spectrin in membrane fusion and in shape change of human erythrocyte ghost

1978 ◽  
Vol 36 (2) ◽  
pp. 328-329
Author(s):  
Hideo Hayashi ◽  
Yoshikazu Hirai ◽  
John T. Penniston
Keyword(s):  
Conformational Changes ◽  
Human Erythrocyte ◽  
Shape Change ◽  
Membrane Surface ◽  
Slight Modification ◽  
Active Role ◽  
Main Role ◽  
Bank Blood ◽  
Human Erythrocyte Ghost

Spectrin is a membrane associated protein most of which properties have been tentatively elucidated. A main role of the protein has been assumed to give a supporting structure to inside of the membrane. As reported previously, however, the isolated spectrin molecule underwent self assemble to form such as fibrous, meshwork, dispersed or aggregated arrangements depending upon the buffer suspended and was suggested to play an active role in the membrane conformational changes. In this study, the role of spectrin and actin was examined in terms of the molecular arrangements on the erythrocyte membrane surface with correlation to the functional states of the ghosts.Human erythrocyte ghosts were prepared from either freshly drawn or stocked bank blood by the method of Dodge et al with a slight modification as described before. Anti-spectrin antibody was raised against rabbit by injection of purified spectrin and partially purified.

Microstructural characterization of laser-melted/roller-quenched dicalcium silicate

1988 ◽  
Vol 46 ◽  
pp. 582-583
Author(s):  
C. J. Chan ◽  
K. R. Venkatachari ◽  
W. M. Kriven ◽  
J. F. Young
Keyword(s):  
Particle Size ◽  
Raw Materials ◽  
Shape Change ◽  
Microstructural Characterization ◽  
Particle Size Effect ◽  
Dicalcium Silicate ◽  
Laser Melting ◽  
Uniform Size ◽  
Cell Shape Change ◽  
Wide Range

Dicalcium silicate (Ca2SiO4) is a major component of Portland cement. It has also been investigated as a potential transformation toughener alternative to zirconia. It has five polymorphs: α, α'H, α'L, β and γ. Of interest is the β-to-γ transformation on cooling at about 490°C. This transformation, accompanied by a 12% volume increase and a 4.6° unit cell shape change, is analogous to the tetragonal-to-monoclinic transformation in zirconia. Due to the processing methods used, previous studies into the particle size effect were limited by a wide range of particle size distribution. In an attempt to obtain a more uniform size, a fast quench rate involving a laser-melting/roller-quenching technique was investigated.The laser-melting/roller-quenching experiment used precompacted bars of stoichiometric γ-Ca2SiO4 powder, which were synthesized from AR grade CaCO3 and SiO2xH2O. The raw materials were mixed by conventional ceramic processing techniques, and sintered at 1450°C. The dusted γ-Ca2SiO4 powder was uniaxially pressed into 0.4 cm x 0.4 cm x 4 cm bars under 34 MPa and cold isostatically pressed under 172 MPa. The γ-Ca2SiO4 bars were melted by a 10 KW-CO2 laser.

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