Results 241 to 250 of about 576,432 (292)
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Cardiac Electrophysiology Clinics, 2019
Optical mapping of electrical activity in the heart is based on voltage-sensitive and lipophilic fluorescence dyes. Optical signals recorded from cardiac cells correlate well with their transmembrane potentials. High spatiotemporal resolution, wide field mapping, and high sensitivity to transmembrane potential enable detailed characterization of action
Omer, Berenfeld, Igor, Efimov
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Optical mapping of electrical activity in the heart is based on voltage-sensitive and lipophilic fluorescence dyes. Optical signals recorded from cardiac cells correlate well with their transmembrane potentials. High spatiotemporal resolution, wide field mapping, and high sensitivity to transmembrane potential enable detailed characterization of action
Omer, Berenfeld, Igor, Efimov
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Algorithms for optical mapping
Proceedings of the second annual international conference on Computational molecular biology - RECOMB '98, 1998Optical mapping is a novel technique for determining the restriction sites on a DNA molecule by directly observing a number of partially digested copies of the molecule under a light microscope. The problem is complicated by uncertainty as to the orientation of the molecules and by erroneous detection of cuts.
R M, Karp, R, Shamir
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Journal of Computational Biology, 2005
We introduce a new scoring method for calculation of alignments of optical maps. Missing cuts, false cuts, and sizing errors present in optical maps are addressed by our alignment score through calculation of corresponding likelihoods. The size error model is derived through the application of Central Limit Theorem and validated by residual plots ...
Anton, Valouev +6 more
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We introduce a new scoring method for calculation of alignments of optical maps. Missing cuts, false cuts, and sizing errors present in optical maps are addressed by our alignment score through calculation of corresponding likelihoods. The size error model is derived through the application of Central Limit Theorem and validated by residual plots ...
Anton, Valouev +6 more
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Intensity mapping optical aberrations
Applied Optics, 1978Intensity mapping aberrations for high average power laser beams are examined from the point of view of diffraction theory. For the Fresnel ripple aberrations, it was determined that indeed they behave like a circular diffraction grating where energy is diffracted into the far wings of the far-field intensity distribution without significantly ...
P V, Avizonis, B D, O'Neil, V A, Hedin
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Flow Sorting–Assisted Optical Mapping
2023Optical mapping-a technique that visualizes short sequence motives along DNA molecules of hundred kilobases to megabase in size-has found an important place in genome research. It is widely used to facilitate genome sequence assemblies and analyses of genome structural variations.
Hana, Šimková +2 more
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Optical mapping of optically paced embryonic hearts
2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2013Conduction maps of early embryonic hearts with optical mapping point to heterogeneous conduction patterns that quickly evolve over time. In adult hearts, electrical pacing is utilized to determine the anisotropy of the conduction patterns and the susceptibility of the tissue to arrhythmias.
Yves T, Wang +3 more
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Science, 2006
An invisibility device should guide light around an object as if nothing were there, regardless of where the light comes from. Ideal invisibility devices are impossible, owing to the wave nature of light. This study develops a general recipe for the design of media that create perfect invisibility within the accuracy of geometrical optics.
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An invisibility device should guide light around an object as if nothing were there, regardless of where the light comes from. Ideal invisibility devices are impossible, owing to the wave nature of light. This study develops a general recipe for the design of media that create perfect invisibility within the accuracy of geometrical optics.
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Optical Contour Mapping of Surfaces
Applied Optics, 1973A precise nondestructive optical contour mapping method with adjustable sensitivity for noncontact testing of surface deformations up to 30 microm/cm is described. The method employs an optical grating that is placed in front of the test surface. Illumination of the grating by a monochromatic plane wave generates an interference pattern between the ...
W, Jaerisch, G, Makosch
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Optical Genome Mapping for Oncology Applications
Current Protocols, 2023AbstractOptical genome mapping (OGM) is a next‐generation cytogenomic technology that has the potential to replace standard‐of‐care technologies used in the genetic workup of various malignancies. The ability to detect various classes of structural variations that include copy number variations, deletions, duplications, balanced and unbalanced events ...
Nikhil Shri, Sahajpal +4 more
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Mapping cone photopigment optical density
Journal of the Optical Society of America A, 1993The distribution of cone photopigment across the retina affects the amount of light captured by cones at each retinal location. Cone photopigment optical density is measured in two ways, with reflectometry and/or with color matching. Color matching measures a higher optical density than does reflectometry.
A E, Elsner, S A, Burns, R H, Webb
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