نتایج جستجو برای: laft portqeshm island

تعداد نتایج: 56142  

1997
H. T. Johnson

A combined analytical and computational model is developed to study the mechanics of strained epitaxial island growth in typical semiconductor systems. Under certain growth conditions in systems with a film/substrate lattice mismatch, deposited material is known to aggregate into islandlike shapes with geometries having arc shaped cross-sections. A two-dimensional model assuming linear elastic ...

2006
ANTHONY J. GASTON MARK HIPFNER

To investigate the covariation of adult body condition and nestling growth, we weighed adult Brünnich’s Guillemots Uria lomvia rearing chicks at Coats Island, Nunavut, Canada, each year between 1988 and 2002. We estimated chick mass at 14 days for a sample of chicks reared in the same years. Adult mass and chick mass at 14 days were highly correlated, suggesting that, as feeding conditions dete...

Journal: :Remote Sensing 2011
Lin Liu Yuanzhi Zhang

In this paper, the effect of urban heat island is analyzed using the Landsat TM data and ASTER data in 2005 as a case study in Hong Kong. Two algorithms were applied to retrieve the land surface temperature (LST) distribution from the Landsat TM and ASTER data. The spatial pattern of LST in the study area is retrieved to characterize their local effects on urban heat island. In addition, the co...

Journal: :The Journal of biological chemistry 2002
Jeremy M Yarwood John K McCormick Michael L Paustian Paul M Orwin Vivek Kapur Patrick M Schlievert

We describe the complete sequence of the 15.9-kb staphylococcal pathogenicity island 3 encoding staphylococcal enterotoxin serotypes B, K, and Q. The island, which meets the generally accepted definition of pathogenicity islands, contains 24 open reading frames potentially encoding proteins of more than 50 amino acids, including an apparently functional integrase. The element is bordered by two...

Journal: :Language 2010
Philip Hofmeister Ivan A Sag

Competence-based theories of island effects play a central role in generative grammar, yet the graded nature of many syntactic islands has never been properly accounted for. Categorical syntactic accounts of island effects have persisted in spite of a wealth of data suggesting that island effects are not categorical in nature and that non-structural manipulations that leave island structures in...

Journal: :Proceedings. Biological sciences 2009
John J Welch

The island rule states that after island colonization, larger animals tend to evolve reduced body sizes and smaller animals increased sizes. Recently, there has been disagreement about how often, if ever, this rule applies in nature, and much of this disagreement stems from differences in the statistical tests employed. This study shows, how different tests of the island rule assume different n...

2015
Amy G. Wilson Yvonne Chan Sabrina S. Taylor Peter Arcese Giacomo Bernardi

The Californian Channel Islands are near-shore islands with high levels of endemism, but extensive habitat loss has contributed to the decline or extinction of several endemic taxa. A key parameter for understanding patterns of endemism and demography in island populations is the magnitude of inter-island dispersal. This paper estimates the extent of migration and genetic differentiation in thr...

Journal: :Zoological science 2004
Takuma Watanobe Naotaka Ishiguro Masuo Nakano Akira Matsui Hitomi Hongo Kiyomi Yamazaki Osamu Takahashi

Ancient mitochondrial DNA (mtDNA) mainly from Jomon Period Sus scrofa bone specimens (6,100-1,700 years old) was examined to clarify the genetic relationships between prehistoric and contemporary S. scrofa on Hokkaido, Honshu, Sado, and Izu islands of the Japanese Archipelago. Phylogenetic analysis of the mtDNA control region (574 bp) and analysis of pairwise nucleotide differences between preh...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Natalie A Wright David W Steadman Christopher C Witt

Birds are prolific colonists of islands, where they readily evolve distinct forms. Identifying predictable, directional patterns of evolutionary change in island birds, however, has proved challenging. The "island rule" predicts that island species evolve toward intermediate sizes, but its general applicability to birds is questionable. However, convergent evolution has clearly occurred in the ...

2015
Courtney A. Hofman Torben C. Rick Melissa T. R. Hawkins W. Chris Funk Katherine Ralls Christina L. Boser Paul W. Collins Tim Coonan Julie L. King Scott A. Morrison Seth D. Newsome T. Scott Sillett Robert C. Fleischer Jesus E. Maldonado

Island endemics are typically differentiated from their mainland progenitors in behavior, morphology, and genetics, often resulting from long-term evolutionary change. To examine mechanisms for the origins of island endemism, we present a phylogeographic analysis of whole mitochondrial genomes from the endangered island fox (Urocyon littoralis), endemic to California's Channel Islands, and main...

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