Search Results - "Beach, James M"

Early Detection of Amyloidopathy in Alzheimer's Mice by Hyperspectral Endoscopy by More, Swati S, Beach, James M, Vince, Robert

“…To describe a spectral imaging system for small animal studies based on noninvasive endoscopy of the retina, and to present time-resolved spectral changes from…”
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Size-Dependent Oscillation in Optical Spectra from Fly Ash Cenospheres: Particle Sizing Using Darkfield Hyperspectral Interferometry by Beach, James M, Kryuchkova, Marina, Fakhrullin, Ramil, Mazurova, Kristina, Stavitskaya, Anna, Cheatham, Byron J, Fakhrullin, Rawil

“…Fly ash by-products are emerging biocompatible fillers for a number of construction materials. The value of fly ash as a filler is higher if the content of…”
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Hyperspectral interferometry: Sizing microscale surface features in the pine bark beetle by Beach, James M., Uertz, James L., Eckhardt, Lori G.

“…ABSTRACT A new method of interferometry employing a Fabry–Perot etalon model was used to locate and size microscale features on the surface of the pine bark…”
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Automatic Identification of Retinal Arteries and Veins From Dual-Wavelength Images Using Structural and Functional Features by Narasimha-Iyer, Harihar, Beach, James M., Khoobehi, Bahram, Roysam, Badrinath

“…This paper presents an automated method to identify arteries and veins in dual-wavelength retinal fundus images recorded at 570 and 600 nm. Dual-wavelength…”
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In Vivo Assessment of Retinal Biomarkers by Hyperspectral Imaging: Early Detection of Alzheimer’s Disease by More, Swati S, Beach, James M, McClelland, Collin, Mokhtarzadeh, Ali, Vince, Robert

“…A noninvasive and cost-effective means to detect preclinical Alzheimer’s disease (AD) and monitor disease progression would be invaluable. The retina is a…”
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Potential measurement error from vessel reflex and multiple light paths in dual‐wavelength retinal oximetry by Beach, James M., Shoemaker, Benjamin, Eckert, George J., Harris, Alon, Siesky, Brent, Arciero, Julia C.

“…Purpose This study aims to characterize the dependence of measured retinal arterial and venous saturation on vessel diameter and central reflex in retinal…”
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Topical Review: Studies of Ocular Function and Disease Using Hyperspectral Imaging by Beach, James M., Rizvi, Madeeha, Lichtenfels, Caitlin B., Vince, Robert, More, Swati S.

“…Advances in imaging technology over the last two decades have produced significant innovations in medical imaging. Hyperspectral imaging (HSI) is one of these…”
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Hyperspectral Imaging for Measurement of Oxygen Saturation in the Optic Nerve Head by Khoobehi, Bahram, Beach, James M, Kawano, Hiroyuki

“…To evaluate a hyperspectral imaging technique for monitoring relative spatial changes in retinal oxygen saturation. The optic nerve head (ONH) and overlying…”
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Glaucoma Filtration Surgery and Retinal Oxygen Saturation by Hardarson, Sveinn Hakon, Gottfredsdottir, Maria Soffia, Halldorsson, Gisli Hreinn, Karlsson, Robert Arnar, Benediktsson, Jon Atli, Eysteinsson, Thor, Beach, James M, Harris, Alon, Stefansson, Einar

“…Glaucoma may involve disturbances in retinal oxygenation and blood flow. The purpose of this study was to measure the effect of glaucoma filtration surgery on…”
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Improved Detection of the Central Reflex in Retinal Vessels Using a Generalized Dual-Gaussian Model and Robust Hypothesis Testing by Narasimha-Iyer, Harihar, Mahadevan, Vijay, Beach, James M., Roysam, Badrinath

“…This updates an earlier publication by the authors describing a robust framework for detecting vasculature in noisy retinal fundus images. We improved the…”
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Algorithms for automated oximetry along the retinal vascular tree from dual-wavelength fundus images by Narasimha-Iyer, Harihar, Beach, James M, Khoobehi, Bahram, Ning, Jinfeng, Kawano, Hiroyuki, Roysam, Badrinath

“…We present an automated method to perform accurate, rapid, and objective measurement of the blood oxygen saturation over each segment of the retinal vascular…”
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Capillaries and arterioles are electrically coupled in hamster cheek pouch by Beach, J M, McGahren, E D, Duling, B R

“…In this report we demonstrate electrical communication in the microcirculation between arterioles and capillary networks in situ. Microvessel networks in the…”
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Capillaries demonstrate changes in membrane potential in response to pharmacological stimuli by McGahren, E D, Beach, J M, Duling, B R

“…It has been proposed that capillaries can detect changes in tissue metabolites and generate signals that are communicated upstream to resistance vessels. The…”
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Topical Review: Studies of Ocular Function and Disease Using Hyperspectral Imaging by Beach, James M., Rizvi, Madeeha, Lichtenfels, Caitlin B., Vince, Robert, More, Swati S.

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Functional equivalence of metarhodopsin II and the Gt-activating form of photolyzed bovine rhodopsin by Kibelbek, Julia, Mitchell, Drake C, Beach, James M, Litman, Burton J

“…Absorption of a photon by the visual pigment rhodopsin leads to the formation of an activated conformational state, denoted rho*, which is capable of…”
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Configurational statistics of acyl chains in polyunsaturated lipid bilayers from deuterium NMR by Salmon, Amir, Dodd, Steven W, Williams, Gerald D, Beach, James M, Brown, Michael F

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Lipid-protein interactions mediate the photochemical function of rhodopsin by Wiedmann, Timothy S, Pates, Robert D, Beach, James M, Salmon, Amir, Brown, Michael F

“…We have investigated the molecular features of recombinant membranes that are necessary for the photochemical function of rhodopsin. The magnitude of the…”
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Dependence of deuterium spin-lattice relaxation rates of multilamellar phospholipid dispersions on orientational order by Williams, Gerald D, Beach, James M, Dodd, Steven W, Brown, Michael F

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Retinal oxygen consumption during hyperglycemia in patients with diabetes without retinopathy by Tiedeman, J S, Kirk, S E, Srinivas, S, Beach, J M

“…This study aimed to determine whether retinal oxygen consumption in patients with diabetes without retinopathy is affected by acute changes in blood glucose…”
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Role of Calcium in Acute Hyperthermic Myocardial Injury by EVERETT IV, THOMAS H., NATH, SUNIL, LYNCH III, CARL, BEACH, JAMES M., WHAYNE, JAMES G., HAINES, DAVID E.

“…Hyperthermic Myocardial Injury. Introduction: We hypothesized that intracellular calcium overload may play an important role in heat‐induced myocardial injury…”
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