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Browsing Ph.D. Theses by Author

Browsing Ph.D. Theses by Author "Ülgen, Yekta."

Now showing items 1-9 of 9

3-D gamma knife distribution by normoxic gel dosimetry near tissue inhomogeneties

İşbakan, Fatih. (Thesis (Ph.D.)-Bogazici University. Institute of Biomedical Engineering, 2005., 2005.)

The primary goal in this study was to investigate the three dimensional dose distributions, near the areas of tissue inhomogeneities, in Gamma Knife Radiosurgery with the normoxic gel dosimetry. Following irradiation, when ...
An optoelectronic system for device localization in interventional MRI

Tümer, Murat. (Thesis (Ph.D.)-Bogazici University. Institute of Biomedical Engineering, 2015., 2015.)

In active catheter tracking, a microcoil directly connected to the MRI system and positioned at the distal end of the catheter is employed for localization. The peaks in the frequency spectrum of the acquired MR signal ...
Bioimpedance spectroscopy in prediction of type I osteoporosis in menopaused women

Matur, Fırat. (Thesis (Ph.D.)-Bogazici University. Institute of Biomedical Engineering, 2021., 2021.)

Bone mineral density (BMD) is a measure of survival for men and women, and it is used to diagnose Osteoporosis that can be diagnosed and treated with an e ective screening. We measured bioimpedance spectroscopy (BIS) ...
Characterization of Au, Au/GO and Au/rGO surfaces for carotid endothelial cell proliferation by electrical impedance spectroscopy method

Şimşek, Fatma Gülden. (Thesis (Ph.D.)-Bogazici University. Institute of Biomedical Engineering, 2020., 2020.)

Endothelium dysfunction may be the cause of cardiovascular diseases such as heart attack, aneurysm, or atherosclerosis. Thus understanding endothelial cell properties helps explaining the reasons and treatment of cardiovascular ...
İnvestigation of the alterations in motor units in neurologic disorders by scanning electromyography

Göker, İmran. (Thesis (Ph.D.)-Bogazici University. Institute of Biomedical Engineering, 2009., 2009.)

In this study, the alterations in the length of cross-sections of MU and the changes in maximum amplitude of MUAPs in each MU in patients with JME were investigated. An experimental setup of scanning EMG was built and 3-D ...
Laser biostimulation and monitorization of wound healing by means of bioimpedance measurements

Solmaz, Hakan. (Thesis (Ph.D.)-Bogazici University. Institute of Biomedical Engineering, 2016., 2016.)

Wound healing is critically important for the quality of life. Substantial number of patients suffering from non-healing chronic wounds and having serious difficulties in their daily life are reported in wound healing ...
Modeling of physiolsgical properties of stored human blood by complex impedance measurements

Sezdi, Manâ. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate of Biomedical Engineering, 2006., 2006.)

In this study, the relationship between physiological properties of human blood,namely Na+, K+, Cl- concentrations, pH, 2,3-DPG and ATP, and its electrical parameters,the Cole-Cole parameters- the resistance of the ...
Models to assess the quality of stored erythrocyte suspensions by diffuse reflectance measurements

Can, Osman Melih. (Thesis (Ph.D.)-Bogazici University. Institute of Biomedical Engineering, 2020., 2020.)

Legislation in transfusion medicine define hemolysis level as the quality measure for erythrocyte suspensions (ES). Since the golden standard test for hemolysis is destructive and causing wastage of units, the hemolysis ...
SOD1 A4V mutation increases Nav1.3 channel excitability on xenopus laevis oocyte

Kubat, Elif. (Thesis (Ph.D.)-Bogazici University. Institute of Biomedical Engineering, 2016., 2016.)

Amyotrophic lateral sclerosis (ALS) is a lethal, paralytic disease caused by degeneration of motor neurons in the spinal cord, brain stem and motor cortex. Mutations in the gene encoding copper/zinc superoxide dismutase ...

Browsing Ph.D. Theses by Author "Ülgen, Yekta."

Browsing Ph.D. Theses by Author "Ülgen, Yekta."

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