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Biyomedikal Mühendisliği Enstitüsü: Recent submissions

Now showing items 101-120 of 423

Investigating lipid signaling in rat hippocampal slices with patch-clamp tight seal whole cell recording technique

Genç, Özgür. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2007., 2007.)

Ceramide, besides its structural role in cell membrane as a sphingolipid, has essential roles in apoptosis, cell growth and di erentiation. In this study, the e ect of C2-ceramide (10 μM) application on whole cell currents ...
Bayesian EEG source reconstruction using Markov chain Monte Carlo methods

Yıldız, Gökçen. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2007., 2007.)
Robust design of breast scintigraphy collimator using Monte Carlo Simulations and response surface methodology

Balta, Sinem. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2007., 2007.)

Breast Scintigraphy, a nuclear medicine breast imaging technique, is a supplemental breast exam that is used in patients to investigate a breast abnormality. It is not a primary investigative tool for breast cancer but it ...
Design and instrumentation of a coronary care unit

Kireçyan, Ari. (Thesis (M.S.) - Bogazici University. Institute of Biomedical Engineering, 1985., 1985.)

In this study, the main principles that must be obeyed in the design and equipment selection of a coronary care unit are investigated along with the architectural steps which could be used in the establishment of such a ...
Evaluation of the continuous detector concept for PET systems dedicated to small animals by using the Monte Carlo simulation method

Ertürk, Sakine Şebnem. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2007., 2007.)

A detector design especially for small animal PET systems requires taking into account three main factors: these are high energy and spatial resolution and price. When examining the state-of-the-art PET detectors, it can ...
Design and implementation of an ECG based emergency telediagnostic system

Dilber, Baran. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)

This thesis aims for the design and implementation of a software system for distributed emergency diagnosis to be used in conjunction with ambulatory electrocardiography (ECG/EKG) devices. The software consists of a Digital ...
Design of an embedded communication framework for an amergency telecardiology system

Yıldırım, Onur. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2006., 2006.)

Acute myocardial infarction (AMI or MI) occurs whwn a part of the heart muscle dies because of sudden total interruption of blood flow to that area. Itis a life-threatening medical emergency which demands immediate activation ...
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 ...

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