M.S. Theses: Recent submissions

  • Classification of tactile units of frogs by using von Frey monofilaments 
    Uçar, Korcan. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Twenty-four mechanoreceptor afferent units with fast conducting axons in the sciatic nerve innervating the hind foot were isolated for electrophysiological recording in pithed frogs. Ten rapidly adapting (RA) units and ...
  • Quantification of the effect of warm up and stretching on the oxygen metabolism using an improved version of a fNIRS device 
    Alkaş, Emir. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    In the vastly improved field of exercise physiology, it is an imperative to exercise a a warm up and stretching routine before training. The reasoning is closely associated with the oxygen (O2) metabolism in the blood. ...
  • Design optimization of a continuous detector for PEM imaging with high resolution and DOI capability 
    Berk, Serkan. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    The objective of this thesis is to improve the resolution of a continuous detector by using an algorithm other than Anger algorithm. Our aim is to obtain a reasonable resolution necessary for Positron Emission Mammography ...
  • Effects of various parameters on binocular rivalry 
    Bölükbaşı, Gamze. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    In daily life, the two eyes see similar images and there is no perceptual competition. The input from the eyes are compatible and the images are fused. On the other hand, binocular rivalry occurs when two eyes are presented ...
  • Generec implementation of the cortico-hippocampal model of gluck and myers im hippocampal region atrophy 
    Çağıran, İlim. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Hippocampal region dysfunction is suggested to have an important effect for thecognitive impairments observed in Alzheimer̕s disease. In some patients, hippocampus andnearby structures show atrophy while other brain ...
  • Investigation of 980-nm diode laser parameters for soft tissue surgery 
    Korkmaz, Yusuf. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Within 800 - 1064 nm spectrum 980 nm diode laser is very important because ofthe local absorption peak around 980 nm. This work was carried out to find the irradiation e irradiated with 980 nm diode laser. Coagulations ...
  • Active and passive processing of sequential tactile inputs 
    Murat, Ali. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    In this thesis, a psychophysics experiment, which is designed to test the effect of active and passive touch on tactile temporal processing, is presented. Active and passive touch are terms that were defined first by J.J. ...
  • Mechanoelectric transduction: |a review and a methodologic approach to explain the phenomena 
    Karamanoğlu, Mustafa. (Thesis (M.S.) - Bogazici University. Institute of Biomedical Engineering, 1985., 1985.)
    The phenomena of mechanical to electrical transduction is a common response of nervous tissue. In gathering information from environment these tissues are specialized to respond in a fashion like mechanical to electrical ...
  • Mental rotation & mirror image recognition in blinds, blindfolded, and sighted 
    Çelik, Serkan. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    How the spatial information is coded and processed is one of the frequently researched subjects in cognitive science. For a rather long time there has been a hard debate about whether the object representation is analogue ...
  • Artificial neural network for gait disorder classification 
    Kuchimov, Shavkat. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Developments in motion analysis systems are distinctive in last decades. Those systemsbecame very important tools for diagnosis of various gait disorders. They evolved so much thatclinicians nowadays dare to use them in ...
  • Production of orbital (eye) implant from hydroxyapatite 
    Bayraktar, Buğra. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    When an eye was lost due to trauma or in the events that require to remove eyeglobe from the orbit, spherically shaped orbital implants were used in order to fill thecavity, to protect the area from infection and to preserve ...
  • The effects of MS/VDB lesions on behavioral despair and learning and memory 
    Aksel, Ayla Aksoy. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    The present study aimed to investigate the consequences of hippocampal denervation in terms of irreversible medial septal area lesioning on behavioral despair and navigational learning. To that purpose medial septum / ...
  • Wavelet transform based electrocardiogram compression and comparison with DCT/DST methods 
    Namdar, Mustafa. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    In this thesis we investigate wavelet transform based ECG compressiontechniques and compare them with conventional approaches. A major issue addressed ishow to guarantee a user-specified error limit measured by the percent ...
  • An investigation on light intensity variation with composite resin depth in dental curing devices 
    Otaran, Ahmet Bahadır. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    In this thesis whether a new generation LED light source based Light CuringUnit can cure a new generation Dental Restoration Composite in a deep cavitysituation, by a single application, without adverse effects and save ...
  • Effect of incident light intensity and source-detector separation on photon migration depth in turbid media 
    Şahin, Betül. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Diffuse optical tomography (DOT) and near-infrared spectroscopy (NIRS) aretechniques that suffer from an uncertainty of photon migration pathlength which isimportant for information of the tissue depth that is probed. We ...
  • Minimization of inhomogeneities in magnetic resonance mammography 
    Doğruluk, Orkun Serdar. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Magnetic Resonance Mammography (MRM), accepted by for use as asupplemental tool to mammography in 1991, provides detailed information about very small lesions that X-ray mammography and ultrasound often cannot detect. Women ...
  • Measurement of vibrotactile thresholds of normal children 
    Öztek, Çiğdem. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    In this study, the vibrotactile thresholds of children (ages between 8 and 11) weremeasured at several frequencies, and compared to the vibrotactile thresholds of adults(ages between 21 and 27) at 40 Hz and 250 Hz. Also, ...
  • A FES device developed for treating drop foot 
    Yavuz, Aykut. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Multiple sclerosis, stroke and peripheral neural disorders affect the centralnervous system and cause various nervous and muscular disabilities. One of thesedisabilities is called drop foot, which prevents the patient from ...
  • Inventory control in clinical engineering 
    Göbelek, H. Derya. (Thesis (M.S.) - Bogazici University. Institute of Biomedical Engineering, 1985., 1985.)
    The purpose of the Equipment Control Program in Biomedical Engineering is to optimize the safety, effectiveness, efficiency and economy of diagnostic, therapeutic and support equipment used for patient care. In this study, ...
  • Sub-components of event related potentials (ERP) associated with polymorphisms in glutamate, gaba and dopamine neurotransmitter receptors 
    Beyazyürek, Çağrı. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)
    Event related potentials (ERPs) reflect perceptual and cognitive processes andtherefore provide an electrophysiological window onto brain function during cognition.P300 component as well as spectral components of ERPs are ...

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