# Browse by Subject "Biophysics, Medical"

• (2009)
Mechanical proteins perform a vital role in cells by transmitting and bearing mechanical forces involved in cell growth, locomotion, and adhesion. Little is known at the molecular level that explains how such proteins are ...

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• (1994)
Magnetic Resonance Imaging (MRI) holds enormous potential for exploring the functional centers of a living brain in vivo. Among the MRI techniques a number of different approaches have provided initial success. The focus ...

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• (1988)
The site of ultrasonic absorption in suspensions of negatively-charged large unilamellar vesicles (LUVs) was investigated. The ultrasonic absorption per wavelength, $\alpha\lambda$, was determined for suspensions of LUVs ...

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• (1989)
The pH of the tumor microenvironment may be important in assessment of response to hyperthermic therapy. Little clinical in vivo data is available during such therapy due to the inherent limitations of the microelectrode ...

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• (1993)
In this thesis, the electron paramagnetic resonance (EPR) methods for simultaneous measurement of intra- and extracellular concentration of oxygen ( (O$\sb2$)) in viable cells have been developed.

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• (1979)

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• (1988)
A fundamental investigation of the potential of nitroxides and O$\sb2$ for enhancement of magnetic resonance imaging (MRI) contrast in vivo is presented. The effect of these species on proton relaxation in both aqueous ...

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• (1992)
The effects of heat and of ultrasound were investigated in the terminally- differentiated erythrocyte using hemolysis as end-point. The heat-induced hemolysis of chicken and rat red blood cells (RBC's) was determined between ...

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• (1996)
Chemotherapy with anticancer drugs is one of the main method of cancer treatment. The exploitation of the stereochemical interactions between anticancer drugs and DNA is of great importance for the ultimate clinical advances ...

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• (1993)
The multinuclear magnetic relaxation behavior of heart muscle from chicken, pork, and beef is investigated. Nonlinear regression analysis of the $\sp1$H transverse magnetization decay yields the best fit with three exponential ...

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• (1990)
The influences of structural factors of biological media on the acoustic nonlinearity parameter B/A were studied at tissue, cellular and molecular levels, using both the thermodynamic method and the finite amplitude method. ...

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• (1995)
There has been a growing interest, in recent years, in the measurement of diffusion of water and metabolites in living systems by magnetic resonance (MR) techniques. Knowledge of the diffusion coefficients of the molecules ...

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• (1991)
The multicellular spheroid embodies many of the physiological and anatomical characteristics of in vivo tumors and provides an appropriate context for investigating the phenomenon of reoxygenation and the interplay of local ...

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• (1991)
The Ultrasound Time Domain Correlation (UTDC) technique can accurately and precisely estimate the volumetric fluid flow through a circular vessel without prior knowledge of the vessel diameter, flow velocity profile, or ...

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• (1991)
This thesis aims to demonstrate the usefulness of Nuclear Magnetic Resonance Spectroscopy in understanding normal human placental and uterine metabolism as well as its application in the study of gestational and gynecological ...

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• (1996)
The techniques of magnetic resonance (MR) imaging and spectroscopy have recently garnered much attention as tools for detecting and localizing metabolic changes in living tissues in various pathologic states and during ...

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• (1994)
Unusual DNA sequences are known to adopt interesting three-dimensional structures which might have important biological roles. For my thesis, I have tried to study the influence of various degrees of perturbations of DNA ...

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• (1989)
I. Three kinds of monoclonal antibodies have been found against iodopsin and other cone pigments in chicken retina: (1) specifically against iodopsin (cell line of 7D3); (2) against iodopsin and another cone pigment (cell ...

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• (1991)
Although the use of ultrasound as a diagnostic modality in obstetrics has become ubiquitous, concern that harmful effects may occur under special circumstances continues. A physical mechanism by which biological effects ...

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• (1992)
The problem of mathematically modeling the nonlinear interaction of ultrasound beams is addressed. The counterpropagation model is studied and a new model, called the copropagation reflection model, is proposed. The new ...

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