نتایج جستجو برای: banded gneiss
تعداد نتایج: 4403 فیلتر نتایج به سال:
The intercalated disc, a cell-cell contact site between neighboring cardiac myocytes, plays an important role in maintaining the homeostasis of the heart by transmitting electric and mechanical signals. Changes in the architecture of the intercalated disc have been observed in dilated cardiomyopathy. Among cell-cell junctions in the intercalated disc, adherens junctions are involved in anchorin...
We show how to compactly represent any n-dimensional subspace of R as a banded product of Householder reflections using n(m − n) floating point numbers. This is optimal since these subspaces form a Grassmannian space Grn(m) of dimension n(m− n). The representation is stable and easy to compute: any matrix can be factored into the product of a banded Householder matrix and a square matrix using ...
We report on experiments with a stable algorithm for the parallel solution of banded and periodically banded linear systems. In contrast to most of the known parallel algorithms which are stable only for symmetric positive deenite or diagonally dominant systems, the new algorithm incorporates pivoting without sacriicing eeciency. We report on numerical experiments conducted on an Intel Paragon,...
Previous research using microdensitometric scanning and computer graphic image analysis showed that T-banded segments of human metaphase chromosomes usually exhibit an asymmetrical distribution of high density (HD) chromatin between sister chromatids. Here, we employed the same methods to analyze HD chromatin distribution at opposite ends of T-banded human lymphocyte chromosomes. This study rev...
Elements of pattern formation in nematic liquid crystal polymers are presented using the Doi-Marrucci-Greco (DMG) moment-averaged theory. The theory yields a full tensor orientation equation, accounting for excluded-volume and distortional elasticity potentials, with rotational molecular diffusion. Spinodal decomposition associated with unstable homogeneous phases is described first by way of a...
OBJECTIVE To use DNA detection methodologies to test for M. leprae in nine-banded armadillos inhabiting forested regions located around the cities and towns where leprosy patients have been identified. DESIGN Ear lobe biopsies of 22 nine-banded armadillos were studied during a 2 year period. The biopsies were processed for DNA extraction and amplification by nested polymerase chain reaction (...
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