photometry

Summary

Top Publications

  1. ncbi The utility of using customized heterochromatic flicker photometry (cHFP) to measure macular pigment in patients with age-related macular degeneration
    J M Stringham
    Vision Science Laboratory, University of Georgia, Athens, GA, USA
    Exp Eye Res 87:445-53. 2008
  2. ncbi A central dip in the macular pigment spatial profile is associated with age and smoking
    Mark L Kirby
    Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Invest Ophthalmol Vis Sci 51:6722-8. 2010
  3. pmc Intrinsic response time of graphene photodetectors
    Alexander Urich
    Institute of Photonics, Vienna University of Technology, Gusshausstrasse 27 29, 1040 Vienna, Austria
    Nano Lett 11:2804-8. 2011
  4. ncbi The impact of macular pigment augmentation on visual performance in normal subjects: COMPASS
    John M Nolan
    Macular Pigment Research Group, Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Vision Res 51:459-69. 2011
  5. ncbi High-performance broadband photodetector using solution-processible PbSe-TiO(2)-graphene hybrids
    Kiran Kumar Manga
    Graphene Research Centre, Department of Chemistry, National University of Singapore, Singapore
    Adv Mater 24:1697-702. 2012
  6. ncbi Augmentation of macular pigment following supplementation with all three macular carotenoids: an exploratory study
    Eithne E Connolly
    Macular Pigment Research Group, Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Curr Eye Res 35:335-51. 2010
  7. ncbi Supplementation with all three macular carotenoids: response, stability, and safety
    Eithne E Connolly
    Macular Pigment Research Group, Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Invest Ophthalmol Vis Sci 52:9207-17. 2011
  8. ncbi Estimates of L:M cone ratio from ERG flicker photometry and genetics
    Joseph Carroll
    Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
    J Vis 2:531-42. 2002
  9. ncbi Macular pigment measurement by heterochromatic flicker photometry in older subjects: the carotenoids and age-related eye disease study
    D Max Snodderly
    Schepens Eye Research Institute, Boston, Massachusetts, USA
    Invest Ophthalmol Vis Sci 45:531-8. 2004
  10. pmc Enhanced responsivity of photodetectors realized via impact ionization
    Ji Yu
    State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
    Sensors (Basel) 12:1280-7. 2012

Detail Information

Publications255 found, 100 shown here

  1. ncbi The utility of using customized heterochromatic flicker photometry (cHFP) to measure macular pigment in patients with age-related macular degeneration
    J M Stringham
    Vision Science Laboratory, University of Georgia, Athens, GA, USA
    Exp Eye Res 87:445-53. 2008
    The purpose of this study was to assess the utility and validity of using customized heterochromatic flicker photometry (cHFP) to measure macular pigment optical density (MPOD) in patients with intermediate stages of age-related macular ..
  2. ncbi A central dip in the macular pigment spatial profile is associated with age and smoking
    Mark L Kirby
    Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Invest Ophthalmol Vis Sci 51:6722-8. 2010
    ..To investigate the relationship between specific macular pigment (MP) spatial profiles and risk factors for age-related macular degeneration (AMD)...
  3. pmc Intrinsic response time of graphene photodetectors
    Alexander Urich
    Institute of Photonics, Vienna University of Technology, Gusshausstrasse 27 29, 1040 Vienna, Austria
    Nano Lett 11:2804-8. 2011
    ..This time translates into a bandwidth of ∼262 GHz. Moreover, we investigate the dependence of the response time on gate voltage and illumination laser power...
  4. ncbi The impact of macular pigment augmentation on visual performance in normal subjects: COMPASS
    John M Nolan
    Macular Pigment Research Group, Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Vision Res 51:459-69. 2011
    ..MP optical density (MPOD) was assessed by customized heterochromatic flicker photometry. VP was assessed as best corrected visual acuity (BCVA), mesopic and photopic contrast sensitivity (CS), glare ..
  5. ncbi High-performance broadband photodetector using solution-processible PbSe-TiO(2)-graphene hybrids
    Kiran Kumar Manga
    Graphene Research Centre, Department of Chemistry, National University of Singapore, Singapore
    Adv Mater 24:1697-702. 2012
    ....
  6. ncbi Augmentation of macular pigment following supplementation with all three macular carotenoids: an exploratory study
    Eithne E Connolly
    Macular Pigment Research Group, Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Curr Eye Res 35:335-51. 2010
    ..At the macula, the carotenoids meso-zeaxanthin (MZ), lutein (L), and zeaxanthin (Z) are collectively referred to as macular pigment (MP). This study was designed to measure serum and macular responses to a macular carotenoid formulation...
  7. ncbi Supplementation with all three macular carotenoids: response, stability, and safety
    Eithne E Connolly
    Macular Pigment Research Group, Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Invest Ophthalmol Vis Sci 52:9207-17. 2011
    ..This study was designed to investigate serum and macular response to, and safety of supplementation with, meso-zeaxanthin (MZ), lutein (L), and zeaxanthin (Z), the carotenoids that constitute macular pigment (MP)...
  8. ncbi Estimates of L:M cone ratio from ERG flicker photometry and genetics
    Joseph Carroll
    Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
    J Vis 2:531-42. 2002
    ..The method remedies major weaknesses inherent in earlier applications of flicker photometry to estimate cone ratio; however, it continues to depend on the assumption that the average L cone produces a ..
  9. ncbi Macular pigment measurement by heterochromatic flicker photometry in older subjects: the carotenoids and age-related eye disease study
    D Max Snodderly
    Schepens Eye Research Institute, Boston, Massachusetts, USA
    Invest Ophthalmol Vis Sci 45:531-8. 2004
    To develop a standardized protocol for measuring macular pigment optical density (MPOD) of experimentally naïve subjects by heterochromatic flicker photometry (HFP).
  10. pmc Enhanced responsivity of photodetectors realized via impact ionization
    Ji Yu
    State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
    Sensors (Basel) 12:1280-7. 2012
    ..The results reported in this paper provide a general route to enhance the responsivity of a photodetector, thus may represent a step towards high-performance photodetectors...
  11. ncbi Macular carotenoid supplementation in subjects with atypical spatial profiles of macular pigment
    John M Nolan
    Macular Pigment Research Group, Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Exp Eye Res 101:9-15. 2012
    ..MP at 0.25°, 0.5°, 1°, 1.75° and 3° was measured using customized-heterochromatic flicker photometry at baseline, four weeks and 8 weeks...
  12. pmc Metal-insulator-semiconductor photodetectors
    Chu Hsuan Lin
    Institute of Opto electronic Engineering, National Dong Hwa University, Hualien 97401, Taiwan
    Sensors (Basel) 10:8797-826. 2010
    ..For mid- and long-wavelength infrared detection, metal-insulator-semiconductor SiGe/Si quantum dot infrared photodetectors have been developed, and the detection spectrum covers atmospheric transmission windows...
  13. ncbi Recovery of peroxides in saliva during home bleaching--influence of smoking
    C Hannig
    Department of Operative Dentistry, Preventive Dentistry and Periodontology, University of Gottingen, Gottingen, Germany
    J Oral Rehabil 33:533-41. 2006
    ..004-0.046 mg kg(-1), which is distinctly less than safe daily dose of 0.26 mg kg(-1) day(-1), if calculated for a small person (58 kg). The criterion smoker versus non-smokers had no influence on peroxide levels in the oral cavity...
  14. ncbi Macular pigment and the edge hypothesis of flicker photometry
    Richard A Bone
    Department of Physics, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA
    Vision Res 44:3045-51. 2004
    Heterochromatic flicker photometry is commonly used to measure macular pigment optical density (MPOD) in the human retina...
  15. ncbi Measurement of macular pigment optical density using two different heterochromatic flicker photometers
    Edward Loane
    Macular Pigment Research Group, Department of Chemical and Life Sciences, Waterford Institute of Technology, Waterford, Ireland
    Curr Eye Res 32:555-64. 2007
    ..To compare macular pigment optical density using two different heterochromatic flicker photometers...
  16. ncbi Macular pigment and visual performance in glare: benefits for photostress recovery, disability glare, and visual discomfort
    James M Stringham
    TASC, Incorporated, Brooks City Base, Texas, USA
    Invest Ophthalmol Vis Sci 52:7406-15. 2011
    ..This study sought to determine the effect of MP level on three aspects of visual performance in glare: photostress recovery, disability glare, and visual discomfort...
  17. ncbi Photometry in the workplace: the rationale for a new method
    B Piccoli
    Department of Occupational Health, Universita degli Studi, University of Milan, Via S Barnaba 8, Milan 20122, Italy
    Ann Occup Hyg 48:29-38. 2004
    ..The rationale for a new method for the detailed evaluation of natural and artificial light in 'near work' situations, involving the assessment of luminance, is described...
  18. ncbi Deep-ultraviolet solar-blind photoconductivity of individual gallium oxide nanobelts
    Liang Li
    International Center for Materials Nanoarchitectonics MANA, National Institute for Materials Science NIMS, Namiki 1 1, Tsukuba, Ibaraki 305 0044, Japan
    Nanoscale 3:1120-6. 2011
    ..Present Ga2O3 nanobelts can be exploited for future applications in photo sensing, light-emitting diodes, and optical switches...
  19. ncbi Enhancing the signal-to-noise ratio of an infrared photodetector with a circular metal grating
    Ravi D Bhat
    Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA
    Opt Express 16:4588-96. 2008
    ..7. In the case of the circular grating, this result is achieved with more than 400 times as much light absorbed in the hole as with a metal film but no grating...
  20. ncbi Estimation of the hydrophobic fraction of dissolved organic matter in water samples using UV photometry
    Jörg Dilling
    Institute of Soil Science and Soil Geography, University of Bayreuth, Germany
    Water Res 36:5037-44. 2002
    ..However, its use is restricted to water samples of low nitrate (< 25 mg L(-1)) and Fe (< 5 mg L(-1)) concentrations and, probably, with the hydrophobic fraction dominated by aromatic compounds deriving from degradation of lignin...
  21. ncbi Opponent and nonopponent contributions to the zebrafish electroretinogram using heterochromatic flicker photometry
    W F Patterson
    Department of Psychology, Western Kentucky University, 1 Big Red Way, Bowling Green, KY 42101, USA
    J Comp Physiol A Neuroethol Sens Neural Behav Physiol 188:283-93. 2002
    ..study, spectral sensitivity functions were obtained from electroretinogram responses to heterochromatic flicker photometry stimuli at several flicker rates, including a low flicker rate (2 Hz), in an attempt to predominantly stimulate ..
  22. pmc Arbitrary multicolor photodetection by hetero-integrated semiconductor nanostructures
    Liwen Sang
    National Institute for Material Science, 1 1 Namiki, Tsukuba, Ibaraki, Japan
    Sci Rep 3:2368. 2013
    ....
  23. ncbi Room-temperature photodetection dynamics of single GaN nanowires
    F González-Posada
    CEA CNRS group Nanophysique et Semiconducteurs, INAC SP2M, CEA Grenoble, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France
    Nano Lett 12:172-6. 2012
    ..The photocurrent is independent of the measuring atmosphere, either in the air or in vacuum. Results are interpreted taking into account the effect of surface states and the total depletion of the NW intrinsic region...
  24. ncbi Supersensitive, ultrafast, and broad-band light-harvesting scheme employing carbon nanotube/TiO2 core-shell nanowire geometry
    Chia Yang Hsu
    Department of Electrical Engineering and Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
    ACS Nano 6:6687-92. 2012
    ..The concept using metallic core oxide-shell geometry with radial Schottky barriers holds potential to pave a new way to realize nanostructured photodetectors for practical use...
  25. ncbi Full waveform hyperspectral LiDAR for terrestrial laser scanning
    Teemu Hakala
    Department of Photogrammetry and Remote Sensing, Finnish Geodetic Institute, Geodeetinrinne 2, Masala, 02431, Finland
    Opt Express 20:7119-27. 2012
    ..To demonstrate the potential of the instrument in the remote sensing of vegetation, 3D point clouds with backscattered reflectance and spectral indices are presented for a specimen of Norway spruce...
  26. ncbi Refined flicker photometry technique to measure ocular lens density
    Petteri Teikari
    Stem Cell and Brain Research Institute, Inserm U846, 18 Avenue Doyen Lepine, 69500 Bron, France
    J Opt Soc Am A Opt Image Sci Vis 29:2469-78. 2012
    ..The goal of our study was to develop an improved psychophysical heterochromatic flicker photometry technique combined with existing mathematical models to evaluate the spectral transmittance of the human ocular ..
  27. ncbi Comparison between macular pigment optical density measurements using two-wavelength autofluorescence and heterochromatic flicker photometry techniques
    Renata Canovas
    Retina Service, Department of Ophthalmology, The New York Eye and Ear Infirmary, New York, New York 10003, USA
    Invest Ophthalmol Vis Sci 51:3152-6. 2010
    ..The purpose of this study was to compare the MPOD values at specific loci around the fovea using the heterochromatic flicker photometry (HFP) and the two-wavelength autofluorescence (AF) methods in a young, healthy population.
  28. ncbi Macular pigment density measured by autofluorescence spectrometry: comparison with reflectometry and heterochromatic flicker photometry
    F C Delori
    Schepens Eye Research Institute, Boston, Massachusetts 02114, USA
    J Opt Soc Am A Opt Image Sci Vis 18:1212-30. 2001
    ..23 +/- 0.07 D.U.) and psychophysical (mean: 0.37 +/- 0.26 D.U.; obtained by heterochromatic flicker photometry) estimates of macular pigment in the same subjects, despite the fact that systematic differences in the ..
  29. ncbi Spectral absorbance and spatial distribution of macular pigment using heterochromatic flicker photometry
    Billy R Wooten
    Walter S Hunter Laboratory, Brown University, Providence, Rhode Island, USA
    Optom Vis Sci 82:378-86. 2005
    ..The validity of the heterochromatic flicker photometric (HFP) technique for measuring macular pigment (MP) was assessed by evaluating the spatial density and spectral absorption curves of normal subjects...
  30. ncbi Laser flare-cell photometry: methodology and clinical applications
    John G Ladas
    Ocular Inflammatory Disease Center, Jules Stein Eye Institute, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
    Surv Ophthalmol 50:27-47. 2005
    ..These factors are difficult to quantify precisely on clinical examination alone. Laser flare-cell photometry provides an automated technique to quantify these factors objectively, and it has been used in a variety of ..
  31. ncbi Protective effect of the in situ pellicle on dentin erosion - an ex vivo pilot study
    Christian Hannig
    Department of Operative Dentistry and Periodontology, University of Freiburg, Hugstetter Str 55, D 79106 Freiburg, Germany
    Arch Oral Biol 52:444-9. 2007
    ..The aim of the present ex vivo study was to evaluate the erosive effects on pellicle coated dentin...
  32. ncbi Laser flare photometry and complications of chronic uveitis in children
    Janet L Davis
    Bascom Palmer Eye Institute and Department of Ophthalmology, University of Miami School of Medicine, Miami, Florida 33136, USA
    Am J Ophthalmol 135:763-71. 2003
    To investigate possible relationships between laser flare photometry values, complications of uveitis, and outcomes in children with chronic uveitis.
  33. ncbi Peroxide release into saliva from five different home bleaching systems in vivo
    Christian Hannig
    Department of Operative and Preventive Dentistry and Periodontology, University of Gottingen, D 37075 Gottingen, Germany
    Am J Dent 18:13-8. 2005
    ..This study determined hydrogen peroxide release into the oral cavity during use of different home bleaching products and compared them with accepted safe levels...
  34. ncbi Characterization of the refolding and reassembly of an integral membrane protein OmpF porin by low-angle laser light scattering photometry coupled with high-performance gel chromatography
    Yasushi Watanabe
    National Food Research Institute, Tsukuba, Ibaraki, Japan
    J Chromatogr A 961:137-46. 2002
    ..OG) have been studied by means of circular dichroism (CD) spectroscopy and low-angle laser light scattering photometry coupled with high-performance gel chromatography...
  35. ncbi Use of laser flare-cell photometry to quantify intraocular inflammation in patients with Behçet uveitis
    Ilknur Tugal-Tutkun
    Department of Ophthalmology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
    Graefes Arch Clin Exp Ophthalmol 246:1169-77. 2008
    To assess the usefulness of laser flare-cell photometry to quantify intraocular inflammation in patients with Behçet disease.
  36. ncbi Laser flare photometry: a noninvasive, objective, and quantitative method to measure intraocular inflammation
    Ilknur Tugal-Tutkun
    Istanbul Faculty of Medicine, Department of Ophthalmology, Istanbul University, Istanbul, Turkey
    Int Ophthalmol 30:453-64. 2010
    ..Laser flare cell photometry is an objective quantitative method that enables accurate measurement of these parameters with very high ..
  37. ncbi Determination of peroxides in saliva--kinetics of peroxide release into saliva during home-bleaching with Whitestrips and Vivastyle
    Christian Hannig
    Department of Operative Dentistry, Preventive Dentistry and Periodontology, University of Gottingen, Robert Koch Str 40, 37075 Gottingen, Germany
    Arch Oral Biol 48:559-66. 2003
    ..Furthermore distinctly more peroxides are released into the oral cavity from Whitestrips than from trays charged with Vivastyle ...
  38. ncbi Macular pigment density and distribution: comparison of fundus autofluorescence with minimum motion photometry
    Anthony G Robson
    Moorfields Eye Hospital, City Road, London EC1V 2PD, UK
    Vision Res 43:1765-75. 2003
    ..MP) distribution profiles were measured for 18 subjects using a Moreland anomaloscope modified for motion photometry. The total amount of MP within the central 7 degrees was estimated from the distribution profile by numerical ..
  39. ncbi Qualitative and quantitative determination of biologically active low-molecular-mass thiols in human blood by reversed-phase high-performance liquid chromatography with photometry and fluorescence detection
    A R Ivanov
    Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow
    J Chromatogr A 870:433-42. 2000
    The reversed-phase high-performance liquid chromatographic method employing photometry and fluorescence detection is described for the precise reproducible simultaneous measurement of total homocysteine (tHcy), cysteine (Cys), and ..
  40. ncbi Applicability of cloud point extraction coupled with microwave-assisted back-extraction to the determination of organophosphorous pesticides in human urine by gas chromatography with flame photometry detection
    Guifang Jia
    Department of Applied Chemistry, China Agricultural University, Beijing 100094, China
    J Hazard Mater 159:300-5. 2008
    ..surfactant (Triton X-114) coupled with microwave-assisted back-extraction prior to gas chromatography with flame photometry detection (GC-FPD) analysis...
  41. ncbi Passive emission colorimetric sensor (PECS) for measuring emission rates of formaldehyde based on an enzymatic reaction and reflectance photometry
    Naohide Shinohara
    Research Institute of Science for Safety and Sustainability RISS, National Institute of Advanced Industrial Science and Technology AIST, 16 1 Onogawa, Tsukuba, Ibaraki, 305 8569, Japan
    Environ Sci Technol 42:4472-7. 2008
    ..A coin-sized passive emission colorimetric sensor (PECS) based on an enzymatic reaction and a portable reflectance photometry device were developed to determine the emission rates of formaldehyde from building materials and other ..
  42. ncbi Heterochromatic flicker photometry
    Richard A Bone
    Department of Physics, Florida International University, Miami 33199, USA
    Arch Biochem Biophys 430:137-42. 2004
    Measurement of the macular pigment optical density (MPOD) by heterochromatic flicker photometry (HFP) is accomplished by viewing a small circular stimulus that alternates between a test wavelength that is absorbed by the MP (typically--..
  43. ncbi An advanced molecule-surface scattering instrument for study of vibrational energy transfer in gas-solid collisions
    Qin Ran
    Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106 9510, USA
    Rev Sci Instrum 78:104104. 2007
    ..Initial experiments on the scattering of HCl(v = 0) from Au(111) show many advantages of this new instrument for fundamental studies of the energy transfer at the gas-surface interface...
  44. ncbi In situ image segmentation using the convexity of illumination distribution of the light sources
    Li Zhang
    Institute of Image and Computer Graphics, Department of Electronic Engineering, Tsinghua University, Beijing, China
    IEEE Trans Pattern Anal Mach Intell 30:1786-99. 2008
    ..Quantitative evaluation experiments are made to test the performance of the method...
  45. ncbi A simplified measurement procedure and portable electronic photometer for disposable sensors based on ionophore-chromoionophore chemistry for potassium determination
    A Palma
    Department of Electronics and Computer Technology, Campus Fuentenueva, Faculty of Sciences, University of Granada, 18071 Granada, Spain
    Anal Bioanal Chem 386:1215-24. 2006
    ..Given the compact size, low weight, rapid response and low energy requirement of the electronic photometer developed here, this measurement system is suitable for potassium determination in the field...
  46. ncbi Multiview photometric stereo
    Carlos Hernández Esteban
    Computer Vision Group, Toshiba Research Europe, Cambridge, UK
    IEEE Trans Pattern Anal Mach Intell 30:548-54. 2008
    ..Finally, we show experimentally how even in the case of highly textured objects, this technique can greatly improve on correspondence-based multi-view stereo results...
  47. ncbi Monitoring of tissue thermal modification with a bundle-based full-field speckle analyzer
    Dmitry A Zimnyakov
    Department of Optics, Saratov State University, Russia
    Appl Opt 45:4480-90. 2006
    ..The possibility of characterization of the modification kinetics (in particular, by the evaluation of the characteristic activation energy) using the developed speckle technique is demonstrated...
  48. ncbi Optimization of Mueller matrix polarimeters in the presence of error sources
    K M Twietmeyer
    University of Arizona College of Optical Sciences, 1630 E University Boulevard, Tucson, Arizona 85721, USA
    Opt Express 16:11589-603. 2008
    ..The use of these metrics is illustrated with analyses of two example polarimeters: a dual rotating retarder polarimeter, and a dual variable retarder polarimeter...
  49. ncbi Determination of scattering volume fraction and particle size distribution in the superficial layer of a turbid medium by using diffuse reflectance spectroscopy
    Yasser S Fawzy
    Perceptronix Medical Incorporated, Vancouver, British Columbia, Canada
    Appl Opt 45:3902-12. 2006
    ..These results suggest the potential of using this method for measuring the volume fraction changes of tissue microstructure scatterers and applications in the detection of cancerous related morphological and structural changes...
  50. ncbi Directional light scanning laser ophthalmoscope
    Brian Vohnsen
    Laboratorio de Optica, Universidad de Murcia, Campus de Espinardo Edificio C, 30071 Murcia, Spain
    J Opt Soc Am A Opt Image Sci Vis 22:2606-12. 2005
    ..Lett. 29, 968 (2004)] together with a detailed numerical analysis of the device. The outcome is compared with experimental results...
  51. ncbi Multiflash stereopsis: depth-edge-preserving stereo with small baseline illumination
    Rogerio Feris
    IBM T J Watson Research Center, Hawthorne, NY 10532, USA
    IEEE Trans Pattern Anal Mach Intell 30:147-59. 2008
    ..Different from most existing active illumination techniques, our method is simple, inexpensive, compact, and requires no calibration of light sources...
  52. ncbi Gating a channel photomultiplier with a fast high-voltage switch: reduction of afterpulse rates in a laser-induced fluorescence instrument for measurement of atmospheric OH radical concentrations
    Yugo Kanaya
    Frontier Research Center for Global Change, Japan Agency for Marine Earth Science and Technology, 3173 25 Showa machi, Kanazawa Ku, Yokohoma, Kanagawa 236 0001, Japan
    Appl Opt 45:1254-9. 2006
    ....
  53. ncbi Real-time range acquisition by adaptive structured light
    Thomas P Koninckx
    Katholieke Universiteit Leuven, ESAT PSI, Belgium
    IEEE Trans Pattern Anal Mach Intell 28:432-45. 2006
    ..Our prototype is implemented using unmodified consumer hardware only and, therefore, is cheap. Frame rates vary between 10 and 25 fps, dependent on scene complexity...
  54. ncbi Active lighting applied to three-dimensional reconstruction of specular metallic surfaces by polarization imaging
    Olivier Morel
    Laboratoire Electronique, Informatique et Image CNRS, UMR 5158, Le Creusot, France
    Appl Opt 45:4062-8. 2006
    ..Finally, applications to shape-defect detection are discussed, and the efficiency of the system to discriminate defects on specular metallic objects made by stamping and polishing is presented...
  55. ncbi Relief texture from specularities
    Jing Wang
    Department of Electrical and Computer Engineering, Rutgers University, Piscataway, NJ 08854, USA
    IEEE Trans Pattern Anal Mach Intell 28:446-57. 2006
    ..Furthermore, spatially varying reflectance is measured simultaneously, i.e., both texture color and texture shape are retrieved...
  56. ncbi Optical detection of honeybees by use of wing-beat modulation of scattered laser light for locating explosives and land mines
    Kevin S Repasky
    Electrical and Computer Engineering Department, Cobleigh 610, Montana State University, Bozeman, Montana 59717, USA
    Appl Opt 45:1839-43. 2006
    ..The optical detection of honeybees has application in the biological detection of land mines and explosives, as was recently demonstrated...
  57. ncbi Detection limits of multi-spectral optical imaging under the skin surface
    T Binzoni
    Département des Neurosciences Fondamentales, University of Geneva, Switzerland
    Phys Med Biol 53:617-36. 2008
    ..An increase in the concentration of a given molecule may produce different contrast, independently of the depth, depending on the characteristics of the skin layer where this change occurs...
  58. ncbi Illumination compensation and normalization for robust face recognition using discrete cosine transform in logarithm domain
    Weilong Chen
    IEEE Trans Syst Man Cybern B Cybern 36:458-66. 2006
    ..Moreover, the advantage of our approach is that it does not require any modeling steps and can be easily implemented in a real-time face recognition system...
  59. ncbi Novel optical detection system for in vivo identification and localization of cervical intraepithelial neoplasia
    Kevin T Schomacker
    MediSpectra, Incorporated, Lexington, Massachusetts 02421, USA
    J Biomed Opt 11:34009. 2006
    ..Typical reproducibility across multiple systems is approximately 5%, providing reliable and accurate detection of in vivo cervical neoplasia in normal clinical use...
  60. ncbi Analysis of the possibility of analog detectors calibration by exploiting stimulated parametric down conversion
    Giorgio Brida
    Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Torino, Italy
    Opt Express 16:12550-8. 2008
    ..Here we show that stimulated parametric down conversion allow one to avoid this limitation, since stimulated photon fluxes are increased by the presence of the seed beam...
  61. ncbi Reflectance sharing: predicting appearance from a sparse set of images of a known shape
    Todd Zickler
    Division of Engineering and Applied Sciences, Harvard University, 33 Oxford St, Cambridge, MA 02138, USA
    IEEE Trans Pattern Anal Mach Intell 28:1287-302. 2006
    ..In fact, in some cases, we can obtain reasonable results in the limiting case of only a single input image...
  62. ncbi Dual-LED imaging for finger liveliness detection and its evaluation with replicas
    Katsuki Tai
    Department of Photonics, Ritsumeikan University, Kusatsu, Shiga 525 8577, Japan
    Appl Opt 45:6263-9. 2006
    ..Using nine types of replicas and the live fingers of 42 participants, we have recorded and analyzed 153 input trials. The two groups of data are successfully separated by some defined criteria...
  63. ncbi Absolute linearity measurements on a gold-black-coated deuterated L-alanine-doped triglycine sulfate pyroelectric detector
    E Theocharous
    Optical Technologies and Scientific Computing, National Physical Laboratory, Teddington TW11 0LW, UK
    Appl Opt 47:3731-6. 2008
    ..5% degrees C(-1). This large and positive temperature coefficient of response is the most likely cause of the superlinear behavior of the DLATGS pyroelectric detector...
  64. ncbi Scattered light corrections to Sun photometry: analytical results for single and multiple scattering regimes
    Alexander A Kokhanovsky
    Institute of Remote Sensing, O Hahn Allee 1, D 28334 Bremen, Germany
    J Opt Soc Am A Opt Image Sci Vis 24:1131-7. 2007
    ..In addition, the accuracy of the small-angle approximation used in the work is studied with numerical calculations based on the exact radiative transfer equation...
  65. ncbi Theoretical and experimental investigation of the thermal resolution and dynamic range of CCD-based thermoreflectance imaging
    Peter M Mayer
    Research Laboratory of Electronics, MIT, Cambridge, Massachusetts 02139, USA
    J Opt Soc Am A Opt Image Sci Vis 24:1156-63. 2007
    ..The accuracy of the resistor thermoreflectance measurement is confirmed by comparing the results with those of a standard 3omega measurement...
  66. ncbi A coupled statistical model for face shape recovery from brightness images
    Mario Castelán
    Department of Computer Science, University of York, York YO1 5DD, UK
    IEEE Trans Image Process 16:1139-51. 2007
    ..By fitting the coupled model to intensity data, facial shape is implicitly recovered from the shape parameters. Experiments show that the coupled model is able to generate accurate shape from out-of-training-sample intensity images...
  67. ncbi Photon signal detection and evaluation in the adaptive optics scanning laser ophthalmoscope
    Yuhua Zhang
    School of Optometry, University of California, Berkeley 94720 2020, USA
    J Opt Soc Am A Opt Image Sci Vis 24:1276-83. 2007
    ..The study presents a practical strategy that can be used to test the photodetector for either initial evaluation or subsequent performance in in-line inspection...
  68. ncbi Optical imaging of hard and soft dental tissues using discretely swept optical frequency domain reflectometry optical coherence tomography at wavelengths from 1560 to 1600 nm
    Hideo Kakuma
    University of Tokyo, Research Center for Advanced Science and Technology, 4 6 1, Komaba, Meguro ku, Tokyo 153 8904, Japan
    J Biomed Opt 13:014012. 2008
    ..5 micros/step, which is 20 times faster than the scanning speed used to obtain the images we reported previously. Despite the faster scanning, we obtain good OCT images of both hard and soft dental tissues in vitro and in vivo...
  69. ncbi Application of low-cost Gallium Arsenide light-emitting-diodes as kerma dosemeter and fluence monitor for high-energy neutrons
    B Mukherjee
    Deutsches Elektronen Synchrotron DESY Notkestrasse 85, D 22607 Hamburg, Germany
    Radiat Prot Dosimetry 126:256-60. 2007
    ..The applications of GaAs LED as a routine neutron fluence monitor and DD precursor for the electronic components located in high-energy accelerator environment are highlighted...
  70. ncbi Fully automated time domain spectrometer for the absorption and scattering characterization of diffusive media
    Antonio Pifferi
    ULTRAS CNR INFM and IFN CNR, Politecnico di Milano, Piazza Leonardo da Vinci 32, I 20133 Milan, Italy
    Rev Sci Instrum 78:053103. 2007
    ..Finally, an example of application of the instrument to the spectroscopy of powders is presented...
  71. ncbi A prototype quantitative film scanner for radiochromic film dosimetry
    Manisha K Ranade
    Department of Radiation Oncology, University of Florida, Gainesville, Florida 32610, USA
    Med Phys 35:473-9. 2008
    ..The LED densitometer provides an accurate film dosimetry system with 1 mm or better resolution. The scanner eliminates the orientation dependence of RCF dosimetry that was previously reported with commercial flatbed scanners...
  72. ncbi Optical extinction monitor using cw cavity enhanced detection
    Paul L Kebabian
    Center for Sensor Systems and Technology, Aerodyne Research, Inc, 45 Manning Road, Billerica, MA 01821 3976, USA
    Rev Sci Instrum 78:063102. 2007
    ..04 Mm(-1) (4 x 10(-10) cm(-1)) (2sigma) in 10 s integration time and a base line drift of less than +/-0.1 Mm(-1) over a 24 h period. Detection limits decrease as the square root of integration time out to approximately 150 s...
  73. ncbi Use of genetic algorithms to optimize fiber optic probe design for the extraction of tissue optical properties
    Gregory M Palmer
    Department of Radiation Oncology, Duke University, Durham, NC 27710, USA
    IEEE Trans Biomed Eng 54:1533-5. 2007
    ..30 cm(-1) for the reduced scattering coefficient (tested range of 3-40 cm(-1)), and 0.41 cm(-1) for the absorption coefficient (tested range of 0-80 cm(-1))...
  74. ncbi Influence of the cavity parameters on the output intensity in incoherent broadband cavity-enhanced absorption spectroscopy
    Sven E Fiedler
    Institut fur Optik und Atomare Physik, Technische Universitat Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
    Rev Sci Instrum 78:073104. 2007
    ..Larger spot sizes of the light source were found to be favorable in order to reduce the negative effects of aberrations on the intensity...
  75. ncbi Sensitive biosensor array using surface plasmon resonance on metallic nanoslits
    Kuang Li Lee
    Academia Sinica, Research Center for Applied Sciences, 128 Section 2, Academia Road, Nankang, Taipei 11529, Taiwan
    J Biomed Opt 12:044023. 2007
    ..7 times larger than that reported on an array of nanoholes. An antigen-antibody interaction experiment in an aqueous environment verified the sensitivity in a surface binding event...
  76. ncbi Reflectance recovery for airborne sensor images of 3D scenes
    Kartik Chandra
    Computer Vision Laboratory, Department of Electrical Engineering and Computer Science, University of California, Irvine, Irvine, California 92697, USA
    J Opt Soc Am A Opt Image Sci Vis 24:957-66. 2007
    ..The algorithm uses the Levenberg-Marquardt method to estimate the subspace model parameters. We have applied the algorithm to a large set of synthetic and real data...
  77. ncbi Analytical light-ray tracing in two-dimensional objects for light-extraction problems in light-emitting diodes
    Hisashi Masui
    Materials Department, College of Engineering, University of California, Santa Barbara, California 93106 5050, USA
    Appl Opt 47:88-92. 2008
    ..The discussion has been extended to parallelograms, which have an advantage in light extraction to rectangles. Placement of a possible light source in polygons is discussed...
  78. pmc Autofluorescence and diffuse reflectance spectroscopy of oral epithelial tissue using a depth-sensitive fiber-optic probe
    Richard A Schwarz
    Department of Bioengineering MS 142, Rice University, 6100 Main Street, Keck Hall Suite 116, Houston, Texas 77005, USA
    Appl Opt 47:825-34. 2008
    ....
  79. ncbi In vivo assessment and evaluation of lung tissue morphologic and physiological changes from non-contact endoscopic reflectance spectroscopy for improving lung cancer detection
    Yasser S Fawzy
    Perceptronix Medical Inc, Suite 400, 555 West 8th Avenue, Vancouver, British Columbia V5Z 1C6, Canada
    J Biomed Opt 11:044003. 2006
    ..The results also showed that the malignant lung lesions can be differentiated from normal tissue/benign lesions with both diagnostic sensitivity and specificity of better than 80%...
  80. ncbi Investigation of an optical fiber cerebral oximeter using a Monte Carlo model
    Justin P Phillips
    Anaesthetic Laboratory, St Bartholomew s Hospital, London, EC1A 7BE, UK
    Conf Proc IEEE Eng Med Biol Soc 2007:1113-6. 2007
    ..The model was validated for whole blood by comparing results from the model with empirical results obtained from samples of blood over a range of saturation values...
  81. ncbi Novel optical method for background reduction in resonant photoacoustics
    Martin Gonzalez
    Laboratorio Láser, Facultad de Ingenieria, Universidad de Buenos Aires, Paseo Colón 850 1063 Buenos Aires, Argentina
    Rev Sci Instrum 78:084903. 2007
    ..Another array of near-infrared, light-emitting diodes served as the secondary light source. With the addition of this cancelling method, the detection limit was decreased to 4% of the previous reached without it...
  82. ncbi Characterization of atherosclerosis plaques by measuring both backscattering and attenuation coefficients in optical coherence tomography
    Chenyang Xu
    Lightlab Imaging Inc, 1 Technology Park Drive, Westford, Massachusetts 01886, USA
    J Biomed Opt 13:034003. 2008
    ..Our results not only explain the origins of many qualitative OCT features, but also show that combination of backscattering and attenuation coefficient measurements can be used for contrast enhancing and better tissue characterization...
  83. ncbi Influence of fiber optic probe geometry on the applicability of inverse models of tissue reflectance spectroscopy: computational models and experimental measurements
    Jiantang Sun
    Rice University, Houston, TX 77005, USA
    Appl Opt 45:8152-62. 2006
    ..5-3 mm that is compatible with endoscopic specifications. The presented inversion method is computationally efficient for eventual real-time in vivo tissue diagnostics application...
  84. ncbi Epitaxially-grown Ge/Si avalanche photodiodes for 1.3 microm light detection
    Y Kang
    Intel Corporation, 2200 Mission College Blvd, Santa Clara, CA 95054, USA
    Opt Express 16:9365-71. 2008
    ..54 A/W, a breakdown voltage thermal coefficient of 0.05%/ degrees C, a 3 dB-bandwidth of 10 GHz. The gain-bandwidth product was measured as 153 GHz. The effective k value extracted from the excess noise factor was 0.1...
  85. ncbi Analysis of time-resolved scattering from macroscale bacterial colonies
    Euiwon Bae
    Purdue University, School of Mechanical Engineering, West Lafayette, Indiana 47906, USA
    J Biomed Opt 13:014010. 2008
    ..Growth curves, represented by colony diameter as a function of time, were compared with the measured time-evolution of the scattering signatures...
  86. ncbi Fast assessment of the central macular pigment density with natural pupil using the macular pigment reflectometer
    Jan van de Kraats
    University Medical Center Utrecht, Department of Ophthalmology, AZU E03 136, P O Box 85500, NL 3508 GA Utrecht, The Netherlands
    J Biomed Opt 11:064031. 2006
    ..light, (3) dilated pupil in the dark, and for comparison with a different technique, (4) heterochromatic flicker photometry (HFP) in dim room light with natural pupil...
  87. ncbi Skin radiance: how to quantify? Validation of an optical method
    Adeline Petitjean
    Cutaneous Engineering and Biology Laboratory, EA3183 and IFR 133 Cell and Tissue Engineering and Biology, CHU, Besancon, France
    Skin Res Technol 13:2-8. 2007
    ..The aim of this study was to validate an optic device used to measure the quantity of light reflected by the skin, which depends on the brightness of the skin...
  88. ncbi Measuring solid-state quantum yields: The conversion of a frequency-doubled Nd:YAG diode laser pointer module into a viable light source
    Bevin C Daglen
    Department of Chemistry, University of Oregon, Eugene, Oregon 97403, USA
    Rev Sci Instrum 78:074104. 2007
    ....
  89. ncbi Appearance-based face recognition and light-fields
    Ralph Gross
    Robotics Institute, Carnegie Mellon University, Pittsburgh, PA 15213, USA
    IEEE Trans Pattern Anal Mach Intell 26:449-65. 2004
    ..The eigen light-field is then used as the set of features on which to base recognition, analogously to how the pixel intensities are used in appearance-based face and object recognition...
  90. ncbi Diffuse optical tomography using intensity measurements and the a priori acquired regions of interest: theory and simulations
    B Kanmani
    Department of Instrumentation, Indian Institute of Science, Bangalore 560 012, India
    Phys Med Biol 50:247-64. 2005
    ....
  91. ncbi Separation of diffuse and specular components of surface reflection by use of polarization and statistical analysis of images
    Shinji Umeyama
    Neuroscience Institute, The National Institute of Advanced Industrial Science and Technology, Tsukuba Central 2, Tsukuba, Ibaraki, 305 8568 Japan
    IEEE Trans Pattern Anal Mach Intell 26:639-47. 2004
    ..We give a separation simulation of artificial data and also give some separation results of real scenes...
  92. ncbi Blood cell counting and classification by nonflowing laser light scattering method
    Ye Yang
    Xi an Jiaotong University, Institute of Biomedical Engineering, Xi an 710049, China
    J Biomed Opt 9:995-1001. 2004
    ....
  93. ncbi Multiple light source detection
    Christos Savvas Bouganis
    EEE Department, Imperial College, London SW7 2BT, UK
    IEEE Trans Pattern Anal Mach Intell 26:509-14. 2004
    ..The experimental results demonstrate that the proposed algorithm is robust and that it gives substantially improved accuracy...
  94. ncbi Active contours for tracking distributions
    Daniel Freedman
    Computer Science Department, Rensselaer Polytechnic Institute, Troy, NY 12180 3590, USA
    IEEE Trans Image Process 13:518-26. 2004
    ..Two separate criteria for matching distributions are examined, and the curve evolution equations are derived in each case. The flows are shown to perform well in experiments...
  95. ncbi Miniaturized dynamic light scattering instrumentation for use in microfluidic applications
    Thomas Q Chastek
    Polymers Division, National Institute of Standards and Technology, 100 Bureau Drive Gaithersburg, Maryland 20899 8542, USA
    Rev Sci Instrum 78:072201. 2007
    ..Further capabilities include temperature control, demonstrated by identification of a critical micelle temperature of poly(ethylene oxide-b-propylene oxide-b-ethylene oxide), as well as multiangle DLS measurements...
  96. ncbi Calculation of ocular single-pass modulation transfer function and retinal image simulation from measurements of the polarized double-pass ocular point spread function
    Katsuhiko Kobayashi
    Topcon Corporation, Research and Development Center, 75 1 Hasunuma cho, Itabashi ku, Tokyo 175 8580, Japan
    J Biomed Opt 9:154-61. 2004
    ..The simulated retinal images and contrast characteristics are useful for evaluating visual performance...
  97. ncbi Optical images of dose distributions in Gel-Fricke: dosimetric performances of the gel
    A M Luciani
    Department of Technology and Health and INFN Sanità Group, Istituto Superiore di Sanita, Viale Regina Elena 299, 00161 Roma, Italy
    Radiat Prot Dosimetry 122:455-6. 2006
    ..015 Gy. The comparison with alanine dosemeters in the dose range 7-10 Gy showed agreement within a few per cent and the same agreement was observed for the comparison with TLD in the range 1-3 Gy...
  98. ncbi Adaptively merging large-scale range data with reflectance properties
    Ryusuke Sagawa
    Institute of Scientific and Industrial Research, Osaka University, 8 1 Mihogaoka, Ibaraki shi, Osaka, Japan
    IEEE Trans Pattern Anal Mach Intell 27:392-405. 2005
    ..In this paper, we present the theories and algorithms of our approaches with pseudo code and apply them to several real objects, including large-scale cultural assets...
  99. ncbi A novel Monte Carlo noise reduction operator
    Ruifeng Xu
    School of Computer Science, University of Central Florida, USA
    IEEE Comput Graph Appl 25:31-5. 2005
  100. ncbi Automatic 3-D grayscale volume matching and shape analysis
    Grégoire Guétat
    Department of Electrical and Computer Engineering, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
    IEEE Trans Inf Technol Biomed 10:362-76. 2006
    ..We use various data to validate the effectiveness of our method: we calculate the average shape and plasticity of a set of fly brain cells, and we also match a human skull and an orangutan skull...
  101. ncbi Acquiring linear subspaces for face recognition under variable lighting
    Kuang Chih Lee
    Beckman Institute and Computer Science Department, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
    IEEE Trans Pattern Anal Mach Intell 27:684-98. 2005
    ..We validate the use of subspaces constructed in this fashion within the context of face recognition...

Research Grants53

  1. Cell Volume Regulation in Neurons and Glia
    FRANCISCO ALVAREZ LEEFMANS; Fiscal Year: 2006
    ..To approach these issues we developed and validated optical methods based on fluorescence imaging and photometry, with unique time resolution (less than 1 second) and sensitivity (about1 percent), to measure simultaneously, ..
  2. MOLECULAR PROPERTIES OF IONIC PERMEABILITY IN NERVE
    Bertil Hille; Fiscal Year: 2013
    ..The methodology will involve single-cell biophysics, electrophysiology, fluorescence resonance energy transfer, photometry, molecular biology, and confocal microscopy...
  3. Nuclear ryanodine receptor type 1: Role in skeletal muscle physiology and disease
    Viktor Yarotskyy; Fiscal Year: 2013
    ..broad range of cutting-edge technologies routinely used by the research team with diverse expertise in imaging, photometry, molecular biology and biochemistry, adenoviral technology, mouse genetics and disease models. Dr...
  4. Electric Studies of Excitation, Secretion &Contraction
    Bertil Hille; Fiscal Year: 2013
    ..to mimic night, and studied under the microscope with techniques such as whole-cell gigaseal recording, photometry of calcium-sensitive dyes, amperometry and HPLC of neurotransmitters, and use of various live-cell indicators ..
  5. Mitochondria and calcium signaling in skeletal muscle
    NATALIA V SHIROKOVA; Fiscal Year: 2012
    ..methods and state-of-the-art imaging techniques (single and two-photon confocal imaging, digital photometry, UV-laser flash photolysis of caged compounds). We propose to: 1)...
  6. Home-Based Lithium Level Testing for Bipolar Patients
    KUMAR SUBRAMANIAN; Fiscal Year: 2009
    ..concentration of lithium in serum, plasma, urine, or other body fluids have been determined by flame emission photometry, atomic absorption spectroscopy or electrochemically using ion-selective electrode...
  7. Ischemic Edge Dynamics in Ischemic Stroke: Potassium and the Blood-Brain Barrier
    STEPHEN CARTER JONES; Fiscal Year: 2010
    ..using innovative K/Rb substitution MRI at 7T and verified by K+ quantitative histochemical staining and flame photometry. Although there are many subtle indicators of the initial changes of BBB permeability, the fall in K+ is an ..
  8. SPERM GLYCINE RECEPTORS AND ZONA-INITIATED EXOCYTOSIS
    Stanley Meizel; Fiscal Year: 2006
    ..human recombinant human ZP3 (rhZP3) on mouse sperm and human sperm respectively will be studied using imaging, photometry and antagonists in in vitro AR assays. The following are the Specific Aims. 1...
  9. COORDINATION CHEMISTRY OF VANADIUM IN BIOLOGY SYSTEM
    CARL CARRANO; Fiscal Year: 1992
    ..Such characterization will include UV-vis spectro-photometry, NMR (1H, 13C and 51V as appropriate), EPR, magnetic measurements, electrochemistry and, when appropriate, ..
  10. Effects of Antioxidants on Human Macular Pigments
    Kyung Jin Yeum; Fiscal Year: 2006
    ..Macular pigment density will be determined monthly using heterochromatic flicker photometry. The spatial distribution curve of MP will be obtained...
  11. KINETICS OF CHLORPROMAZINE-DOPAMINE RECEPTOR REACTIONS
    DAVID TOPPEN; Fiscal Year: 1980
    ..Since such reactions occur swiftly, the techniques of computer-controlled stopped-flow fluorescence spectro-photometry will be employed to obtain kinetics data on the neurochemical millisecond time scale...
  12. CLINICAL EPIDEMIOLOGY OF RETINAL DEGENERATIONS
    Alessandro Iannaccone; Fiscal Year: 2005
    ..non-invasively in each subject by means of a validated method based on the principle of heterochromatic flicker photometry. Macular appearance will be documented photographically and graded with an internationally approved system...
  13. BIOMEDICAL RESEARCH SUPPORT
    John Reid; Fiscal Year: 1991
    ..recovery after photobleaching, adherent live cell sorting, laser cross-linking, quantitative fluorescence photometry, laser ablation of cells, and automated revisiting of cells of interest...
  14. THE PHYSIOLOGY OF DRUG RESISTANT MALARIA
    PAUL ROEPE; Fiscal Year: 2009
    ..We will use novel cell culture techniques, genetically modified P. falciparum, our established single cell photometry (SCP) and laser confocal microscopy techniques, and, for the first time to our knowledge, novel spinning disk ..
  15. PROSTAGLANDINS AND RENAL ALLOGRAFT REJECTION
    Charles Anderson; Fiscal Year: 1990
    ..flow probes), cortical blood flow (H2 Washout), GFR (creatinine clearance), and electrolyte excretion (flame photometry)...
  16. CELL HARVESTER & MULTILABEL COUNTER
    Dennis Kasper; Fiscal Year: 2000
    ..counter are components of an integrated system that measures radioactivity, chemiluminescence, fluorescence, and photometry. This equipment allows for analysis of a large number of samples in an automated fashion and can be used for ..
  17. SALIVARY GLAND STRUCTURE AND FUNCTION
    CHARLOTTE SCHNEYER; Fiscal Year: 1992
    ..3H] thymidine and [3H] uridine incorporation into DNA and RNA respectively will measure DNA and RNA synthesis; electrolytes will be measured by flame photometry or titration.
  18. RADIATION CATARACTOGENESIS
    Basil Worgul; Fiscal Year: 1992
    ..number of parameters known to be affected by ionizing radiation will be fully assesssed using automated scanning photometry as a function of the dose, time post-irradiation and nature of the radiation...
  19. ROLE OF WATER IN CANCER CELL DIVISION
    CARLTON HAZLEWOOD; Fiscal Year: 1980
    ..water content and electrolytes will be determined through the cell cycle by gravimetric analysis and flame photometry. Changes in the physical state of water in the cancer cell during the cell cycle, as defined by the NMR ..
  20. WITHIN-SPECIES VARIATIONS IN VISUAL CAPACITY
    GERALD JACOBS; Fiscal Year: 2007
    ..unreadable] [unreadable]..
  21. Integrated Photothermal Nanoprobes
    Vladimir Zharov; Fiscal Year: 2007
    ..The results of these studies will also make it possible to formulate recommendations on the desired properties of new, clustered nanomaterials for medical applications. [unreadable] [unreadable] [unreadable]..
  22. Photothermal Imaging of Live Cells
    Vladimir Zharov; Fiscal Year: 2008
    ..The technical realization of PTI is relatively simple, requiring the combination of conventional optical phase-contrast microscopy and the already routinely used nanosecond laser. ..
  23. Integrated optical imaging rat of mesentery
    Vladimir Zharov; Fiscal Year: 2004
    ..The technical realization of this new imaging system is relatively simple, combining transmission microscopy and laser technique already routinely in use. ..
  24. Photothermal Evaluation of Drug Toxicity at Cell Level
    Vladimir Zharov; Fiscal Year: 2004
    ..abstract_text> ..
  25. Non-invasive Fast Optical Imaging of Visual and Motor Processing
    Andrei Medvedev; Fiscal Year: 2008
    ..unreadable] [unreadable] [unreadable]..
  26. High-Speed Label-Free Optical Detection System for Small-Molecule Microarrays
    Xiangdong Zhu; Fiscal Year: 2009
    ..abstract_text> ..
  27. Characterization of cardiovascular purinoceptors
    TERRANCE EGAN; Fiscal Year: 2009
    ..This is important because the receptors may present a new and potentially exciting means of increasing the rate of survival of patients affected by a number of cardiovascular diseases including hypertension and heart failure. ..
  28. MULTIPLE SITE OPTICAL RECORDING OF MEMBRANE POTENTIAL
    BRIAN SALZBERG; Fiscal Year: 2009
    ..abstract_text> ..
  29. Snapshot Retinal Imaging Polarimeter
    James Schwiegerling; Fiscal Year: 2007
    ..Furthermore, the device could potentially be a low-cost add-on to existing fundus cameras, allowing a more widespread utility than existing devices. [unreadable] [unreadable]..
  30. Gating and conduction of ATP-gated ion channels
    TERRANCE EGAN; Fiscal Year: 2007
    ..In the second set of experiments, fluorescence resonance energy transfer (FRET) will be used to determine intra- and inter-molecular distances in the absence and presence of ATP. ..
  31. The role of object-based attention in motion perception
    Thomas Papathomas; Fiscal Year: 2004
    ..If attention is involved in surface formation, the normally global MAE direction will change to local when attention is distracted by a foveal task during adaptation. ..
  32. MODULATION OF CORTICAL ACTIVITY BY EYE MOVEMENTS
    D Snodderly; Fiscal Year: 2002
    ..The results will be relevant to human visual perception, as well as in vivo imaging of human visual function. ..
  33. CAROTENOIDS & AGE-RELATED EYE DISEASE IN WOMEN'S HEALTH
    Julie Mares; Fiscal Year: 2004
    ..We will compare macular pigment density measured by newly advanced technology using heterochromatic flicker photometry in these groups and evaluate the lifestyle, physical, and diet factors that influence these comparisons...
  34. INFANT COLOR VISION
    DAVIDA TELLER; Fiscal Year: 2003
    ..The results will particularly address the hypotheses of uniform vs. differential loss and adult-like vs. juvenile mechanisms in the isoluminant plane. ..
  35. RAMAN DETECTION OF HUMAN MACULAR CAROTENOID PIGMENTS
    Werner Gellermann; Fiscal Year: 2002
    ..Furthermore, we propose a series of clinical studies in humans to validate its function and to begin to establish its role as a possible screening test for AMD. PROPOSED COMMERCIAL APPLICATION: Screening of macular pigment levels. ..
  36. FUNCTIONAL MICROCIRCUITRY OF PRIMATE OUTER RETINA
    DENNIS DACEY; Fiscal Year: 2002
    ..The results are expected to contribute to a new foundation for understanding the cellular origins of human retinal disease. ..
  37. NUMERICAL SIMULATION OF CARDIAC ELECTROPHYSIOLOGY
    Bradley Roth; Fiscal Year: 2005
    ..Each hypothesis is motivated by experimental data, and the goal of the theoretical simulations is to interpret these data. ..
  38. TRANSPORT BY OCULAR EPITHELIAL CELLS
    MORTIMER CIVAN; Fiscal Year: 2005
    ..abstract_text> ..
  39. Acousto-optical Elastography for Imaging Skin Cancers
    Sean Kirkpatrick; Fiscal Year: 2006
    ..Successful completion of these objectives will provide sufficient data to assess the feasibility of AOE for skin cancer imaging and screening and will lead to future preclinical and clinical evaluation of AOE. [unreadable] [unreadable]..
  40. Phase-Contrast Imaging of Microvascular Stucture
    MARK ANASTASIO; Fiscal Year: 2006
    ..The successful completion of our proposed research will establish in-line phase-contrast tomography as an effective and important modality for imaging microvascular structure. [unreadable] [unreadable]..
  41. HIGHER ORDER MECHANISMS IN COLOR VISION
    John Krauskopf; Fiscal Year: 2001
    ..6. To attempt to resolve the conflict between estimates of the relative sensitivity of the L and M cones based on two lines of evidence. ..
  42. RETINAL BIREFRINGENCE ANALYSIS IN STRABISMUS & AMBLYOPIA
    David Hunter; Fiscal Year: 2003
    ..The ability to screen for early, small deviations may help resolve conflicting findings on the efficacy of early amblyopia detection and treatment. ..
  43. Reading Enhancement for Patients with Visual Field Loss
    MICHAEL SANDBERG; Fiscal Year: 2004
    ....
  44. 2007 Carotenoids Gordon Research Conference
    John Landrum; Fiscal Year: 2006
    ..unreadable] [unreadable] [unreadable] [unreadable]..
  45. Local Tomography for Radiation Therapy Tumor Imaging
    MARK ANASTASIO; Fiscal Year: 2005
    ..By increasing the conformality of the radiation therapy treatment procedure, the chances of survival for cancer patients could be improved while simultaneously minimizing the risk of radiation-induced complications. ..
  46. Organization of the Trichromatic Cone Mosaic
    Joseph Carroll; Fiscal Year: 2005
    ..This will be done in subjects for whom we also have a representation of their cone mosaic, to be able to selectively stimulate cones from a particular class. ..
  47. NON-INVASIVE MEASUREMENT OF RPE LIPOFUSCIN
    Francois DeLori; Fiscal Year: 2005
    ..The proposed studies will provide needed data on relationships among AMD, lipofuscin and macular pigment, estimate genetic contribution to the latter, and assist identification of individuals at greatest risk for vision loss. ..
  48. MINORITY PREDOCTORAL FELLOWSHIP PROGRAM
    Roberto Reif; Fiscal Year: 2007
    ..Another application for the OP system will include detecting changes in capillary permeability caused by anti-angiogenic therapy. [unreadable] [unreadable] [unreadable]..
  49. 13th International Congress of Radiation Research
    Mark Dewhirst; Fiscal Year: 2007
    ..unreadable] [unreadable] [unreadable] [unreadable]..
  50. Melanopsin-based form vision in photoreceptor disease
    MICHAEL SANDBERG; Fiscal Year: 2007
    ..unreadable] [unreadable]..
  51. In Vivo Antiviral Activity of Saponins
    MICHAEL RONER; Fiscal Year: 2007
    ..The extract is well suited to such an application as it is pH stable, is already approved as a food additive, is inexpensive, readily available and is soluble in water. [unreadable] [unreadable] [unreadable]..