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Browsing M.S. Theses by Author "Güçlü, Burak."

Now showing items 1-20 of 38

3D-printing technique for fabrication of biodegradable PDLLA tympanostomy tube and examination of biofilm formation

Güner, Dine. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2021., 2021.)

In this study, it is presented that the new fabrication method for biodegradable PDLLA tympanostomy tube by examining its degradation and swelling behavior, bacterial attachment, and biofilm formation with a comparison of ...
A device for functional and cosmetic improvement of lagophtalmos due to facial paralysis

Aşık, Mehmet Doğan. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2009., 2009.)

A new device for the correction of eyelid problems due to facial palsy was studied. Lagophthalmos is the condition of the paralyzed eyelids' to close totally. It may cause drying and irritation .In this thesis, 14 rabbits ...
A study on the neuroendocrine hormone levels and psychophysiological parameters in excessive computer game playing young male adults

Paşaoğlu, Taliha. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2010., 2010.)

Excessive gaming may be considered a behavioral addiction similar to gambling. In order to test this hypothesis, the activity of the autonomic nervous system was recorded (heart rate and skin conductance) and neuroendocrine ...
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. ...
Asynchronous processing of luminance difference and motion in visual perception

İşcan, Onur. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2008., 2008.)

This study is related with the perception of first-order motion. The processing of visual information in the human brain is accomplished by numerous visual streams. Each stream is specialized to process different attributes ...
Building a measurement setup for the investigation of acoustic cavitations for medical applications

Erdem, Şener. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2007., 2007.)

Various noninvasive medical treatments rely on high intensity ultrasound or shock waves. The externally generated pressure waves transfer a large amount of energy into the body. There is evidence that in all of these ...
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 ...
Design of a computer-controlled current stimulator for neree and muscle excitation

Arar, Mahmud Esad. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2015., 2015.)

Electrical stimulation of excitable tissues has been widely used for diagnosing and treating neurological and muscular disorders. Electrical stimulation is also used to analyze and understand inherent functions of nerves ...
Design of a vibrotactile balance support system with a virtual reality training program

Aras, Enes Tarık. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2022., 2022.)

This thesis aims to design a vibrotactile feedback(VTF) system to help balance rehabilitation with virtual reality (VR) training. First, the training program was built in a virtual reality platform by using Unity3D and ...
Design of virtual environment for discrimination tasks to determine the psychometric function

Hasekioğlu, Taha. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2019., 2019.)

In this thesis, we used the Gazebo simulation software to develop a virtual environment for interactions of objects to perform psychophysical tasks to distinguish between objects at differing stiffnesses. The virtual ...
Differential effects of short light pulses in the dark phase of an L/D cycle on behavioral despair in male wistar rats

Aydın, Elif. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2008., 2008.)

The present study investigated the effect of a 10-min light pulse either early or late in the dark phase of the L/D cycle on behavioral despair in male Wistar rats. Independent groups of rats (n=8 each) maintained on a ...
Effects of affective touch on ultrasonic vocalization and c- FOS expression in rats

Tunçkol, Elçin. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2018., 2018.)

The sense of touch has two functional dimensions: discriminative and affective. Discriminative properties of tactile stimuli are relayed via myelinated and fast conducting A fibers while affective properties are transmitted ...
Effects of basal forebrain stimulation on the distribution of cholinergic receptors in the sensorimotor cortex of rat brain

Devlet, Begüm. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2019., 2019.)

In this thesis, the eﬀects of basal forebrain stimulation on the distirbution of α4 and α7 type nicotinic acetylcholine receptors were studied in three diﬀerent brain areas: primary motor cortex, hindlimb somatosensory ...
Effects of contactor size and stimulation distance on the response properties of rapidly-adapting tactile fibers innervating the rat glabrous skin

Devecioğlu, İsmail. (Thesis (M.S.) - Bogazici University.Institute of Biomedical Engineering, 2011., 2011.)

Recent population models used space-invariant attenuation functions. But this assumption is not enough to construct realistic population models, because mechanical properties of the skin vary along the skin [1]. In this ...
Effects of frequency on the temporal summation in the pacinian psychophysical channel

Kılınç, Deniz. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2017., 2017.)

According to the temporal summation theory, increasing stimulus duration causes a decrease in detection psychophysical threshold. Unlike previous psychophysical studies based on the fast adaptive tracking procedure, in ...
Effects of self movement on absolute and masked thresholds in the pacinian channel

Özkan, Fatma Büşra. (Thesis (M.S.) - Bogazici University. Institute of Biomedical Engineering, 2014., 2014.)

In this thesis, we simulated active touch by measuring absolute and masked thresholds in the Pacinian channel during cyclic self-movement. Based on previous work we hypothesized improvement in the absolute thresholds and ...
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 ...
Evaluation of force-velocity characteristics of quadriceps muscles by means of peak torque-angular velocity relationship during knee extension and flexion

Akkılık, Abdulaziz. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2008., 2008.)

In this thesis, an experiment, which shows that there is a relationship between theoretical force-velocity characteristics of a muscle fiber and experimental peak torqueangular velocity characteristics of quadriceps muscle ...
FPGA implementation of machine learning algorithms for vibrotactile feedback in prostheses

Erbaş, İsmail. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2021., 2021.)

This study aimed to apply discrete event-driven vibrotactile feedback using ma chine learning algorithms in real time. Previously acquired tactile and proprioceptive sensor data were input to an FPGA and classi ed by ...
Functional characterization of graphene-based thin-film microelectrodes on rat sensorimotor cortex

Duvan, Fikret Taygun. (Thesis (M.S.)-Bogazici University. Institute of Biomedical Engineering, 2020., 2020.)

Neuroprostheses based on cortical implants are promising to provide partial sensorimotor function in severe neurological conditions such as spinal cord injuries and amyotrophic lateral sclerosis. One of the key components ...

Browsing M.S. Theses by Author "Güçlü, Burak."

Browsing M.S. Theses by Author "Güçlü, Burak."

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