Browsing Physics by Issue Date
Now showing items 21-40 of 164
-
COMPARATIVE ANALYSIS OF TWO HUMAN CANCER CELL LINES FOLLOWING EXPOSURE TO LOW DOSE RADIATION
(East Carolina University, 2011)Over the past two decades, studies on the cellular response to very low dose radiation have been revolutionizing historically-held paradigms of cellular radioresponse. Indeed, a host of seemingly contradictory events have ... -
Label-free classification of cultured cells through diffraction imaging
(2011-05)Automated classification of biological cells according to their 3D morphology is highly desired in a flow cytometer setting. We have investigated this possibility experimentally and numerically using a diffraction imaging ... -
In Vivo Blood Glucose Quantification Using Raman Spectroscopy
(2012)We here propose a novel Raman spectroscopy method that permits the noninvasive measurement of blood glucose concentration. To reduce the effects of the strong background signals produced by surrounding tissue and to obtain ... -
THE DESCRIPTION OF SCHUMANN ELECTROMAGNETIC RESONANCES BETWEEN EARTH AND ITS IONOSPHERE AS BOSE-EINSTEIN CONDENSATES OF EXTREMELY LOW FREQUENCY PHOTONS
(East Carolina University, 2012)The purpose of this thesis is to show that Schumann resonances between Earth and its ionosphere are Bose-Einstein condensates of extremely low frequency photons. We will show that the photon densities of the first five ... -
Analysis of Circular Dichroism and Linear Dichroism Spectroscopy
(East Carolina University, 2012)Circular Dichroism (CD) and Linear Dichroism (LD) spectroscopies measure the difference in absorption between left and right circularly polarized light and parallel and perpendicular linearly polarized light as a function ... -
Mathematical Modeling of Oxygen Transport, Cell Killing and Cell Decision Making in Photodynamic Therapy of Cancer
(East Carolina University, 2012)In this study we present a model of in vitro cell killing through type II Photodynamic Therapy (PDT) for simulation of the molecular interactions leading to cell death in time domain in the presence of oxygen transport ... -
DOSIMETRIC STUDY OF BETA-MINUS EMITTER PRASEODYMIUM-142 : APPLICATIONS IN MICROSPHERE BRACHYTHERAPY FOR HEPATOCELLULAR CARCINOMA AND BRACHYTHERAPY FOR OCULAR SQUAMOUS CELL CARCINOMA
(East Carolina University, 2013)A dosimetric study of the beta-minus emitter Praseodymium-142 (¹⁴²Pr) was performed and two main innovative applications of this source in brachytherapy are proposed: microsphere brachytherapy and eye plaque brachytherapy. ... -
Correlating the Morphological and Light Scattering Properties of Biological Cells
(East Carolina University, 2013)The scattered light pattern from a biological cell is greatly influenced by the internal structure and optical properties of the cell. This research project examines the relationships between the morphological and scattering ... -
COMPARISON OF TWO HUMAN CELL LINES FOLLOWING EXPOSURE TO LOW DOSE RADIATION AND TREATMENT WITH SOYBEAN MISO AND ITS ACTIVE INGREDIENT GENISTEIN
(East Carolina University, 2013)Exposure to radiation is increasingly becoming a worldwide health issue. Because of this, the need for effective radioprotectors is critical. This need is not met by amifostine, the current "gold standard" in radioprotectors, ... -
Optical and dielectric properties of metallic calcium, modeled generalized oscillator strength function of calcium, interaction cross sections of electrons, protons, and alpha particles with calcium
(East Carolina University, 2013)An analysis of the optical and the dielectric properties of calcium, determined from the literature, was performed. The optical functions of calcium were used for a calculation of the energy loss function of calcium. The ... -
Kinetics of Germination of Individual Spores of as Measured by Raman Spectroscopy and Differential Interference Contrast Microscopy
(2013)Geobacillus stearothermophilus is a gram-positive, thermophilic bacterium, spores of which are very heat resistant. Raman spectroscopy and differential interference contrast microscopy were used to monitor the kinetics of ... -
Development of a Finite Difference Time Domain (FDTD) Model for Propagation of Transient Sounds in Very Shallow Water
(2013-08-12)We developed a finite difference time domain (FDTD) model for sound propagation using pressure and velocity grids with both three-dimensional Cartesian and two-dimensional cylindrical implementations. Propagation parameters, ... -
Feasibility Study of Dual Energy Radiographic Imaging for Target Localization in Radiotherapy for Lung Tumors
(2014)Purpose Dual-energy (DE) radiographic imaging improves tissue discrimination by separating soft from hard tissues in the acquired images. This study was to establish a mathematic model of DE imaging based on intrinsic ... -
Graviton and photon orbitals surrounding a black hole : Application to the supermassive black hole at the Milky Way galactic center, with NIR observational confirmation.
(East Carolina University, 2014)Non-relativistic Quantum Theory fairly accurately describes the resonance phenomena around a black hole, even though black holes are thought of as general relativistic (GR) objects. Graphically and numerically we are able ... -
Considering the Oxygen Effect : Further Development of a Volumetric Model of Tumor Response to Radiation Therapy for Cervical Cancer
(East Carolina University, 2014)Mathematical modeling of tumor response to radiation therapy (RT) has great potential for designing therapy plans that are more personalized, more adaptive, and more reliable for outcome predictions. A preexisting model ... -
An Information-Theoretic Approach to Cellular Decision-Making Strategies: How Rate Distortion Theory Provides an Optimal Method for Describing Binary Cellular Decision-Making Systems
(2014)Rate distortion theory, a branch of information theory, was originally developed to help improve the efficiency of data transmission in telecommunications. It's currently being used as a major modeling method to provide ... -
Four-Dimensional In Vivo Dosimetry By Dose Reconstruction Using Continuous Epid Images And Phase Sorting Method
(East Carolina University, 2015)In vivo dosimetry is widely used for patient specific dose evaluation and treatment verification in external beam radiation therapy (EBRT). There is a growing interest in using an electronic portal imaging device (EPID) ... -
Study of Morphology Based Cell Assay by Diffraction Imaging Flow Cytometry
(East Carolina University, 2015)Development of an accurate and label-free method for single cell assay attracts intensive research efforts for its importance to cell biology research and clinicG14G7al applications. Flow cytometry is one of the most widely ... -
VIABILITY OF CERIUM OXIDE NANOPARTICLES AS A RADIOPROTECTOR AGAINST PROTON RADIATION FOR NON-MALIGNANT CELLS
(East Carolina University, 2015)Radiation therapy is a prevalent cancer treatment therapy. The goal is to kill all tumor cells while minimizing damage to healthy cells and new methods that can accomplish this goal are continually being investigated. ...