Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369444
Suayip Acar, Hamdi Melih Saraoglu, Saime Akdemir Akar
Electroencephalogram (EEG)-based emotion recognition is a rapidly growing field. This paper presents a research study on identifying the changes caused by human emotions in brain signals through EEG records and further examines the availability of chaotic analysis for emotion prediction applications. We designed an efficient presentation including 30 pictures from International Affective Picture System (IAPS) which could stimulate the emotions of happiness, sadness and fear. A group of 20 persons consisting of 12 males and 8 females took place in our research study as subjects voluntarily. In order to acquire the EEG signals under picture induction environment, a total of 30 pictures that might reveal the feelings of happiness, sadness and fear were shown to the volunteer subjects that participated in the study voluntarily. Data acquired from EEG records were analyzed by using chaotic analysis through MATLAB program and two different attributes consisting of "Largest Lyapunov Exponent (LLE)" and "Correlation Dimension" were obtained. The mean values of each attribute that obtained through chaotic analysis were compared by using independent t-test and dependent t-test in SPSS program with 95% confidence interval and a P value of p<;0.05. The independent samples t-test was used to compare the mean values of each attribute relevant to two unrelated groups (Females-Males) and Dependent samples t-test was used to test whether the mean values of two related observations (two observations for per subject) significantly differs from the hypothesized value. Our study shows that chaotic analysis promises hope for future studies.
{"title":"Feature extraction for EEG based emotion prediction applications through chaotic analysis","authors":"Suayip Acar, Hamdi Melih Saraoglu, Saime Akdemir Akar","doi":"10.1109/BIYOMUT.2015.7369444","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369444","url":null,"abstract":"Electroencephalogram (EEG)-based emotion recognition is a rapidly growing field. This paper presents a research study on identifying the changes caused by human emotions in brain signals through EEG records and further examines the availability of chaotic analysis for emotion prediction applications. We designed an efficient presentation including 30 pictures from International Affective Picture System (IAPS) which could stimulate the emotions of happiness, sadness and fear. A group of 20 persons consisting of 12 males and 8 females took place in our research study as subjects voluntarily. In order to acquire the EEG signals under picture induction environment, a total of 30 pictures that might reveal the feelings of happiness, sadness and fear were shown to the volunteer subjects that participated in the study voluntarily. Data acquired from EEG records were analyzed by using chaotic analysis through MATLAB program and two different attributes consisting of \"Largest Lyapunov Exponent (LLE)\" and \"Correlation Dimension\" were obtained. The mean values of each attribute that obtained through chaotic analysis were compared by using independent t-test and dependent t-test in SPSS program with 95% confidence interval and a P value of p<;0.05. The independent samples t-test was used to compare the mean values of each attribute relevant to two unrelated groups (Females-Males) and Dependent samples t-test was used to test whether the mean values of two related observations (two observations for per subject) significantly differs from the hypothesized value. Our study shows that chaotic analysis promises hope for future studies.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115567346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369434
B. Aldemir, Serkan Dikici, O. Karaman, H. Oflaz
Clinic applications of bone tissue (BT) transplantation are used widely for treatment of large bone defects. In BT field, development of biomimetic bone tissue scaffolds which have appropriate chemical and mechanical properties for clinic applications is needed. Biomimetic bone tissue scaffolds should be used for bone grafts which are developed with tissue engineering approach to mimic extracellular matrix. Since bone have high percentage of hydroxyapatite, ceramic biomaterials have grand potential to be used as inorganic tissue scaffold. Literature shows that ceramic based scaffolds such as calcium sulphate, β-tricalcium phosphate and hydroxyapatite support cell attachment, can be resorbed by osteoclasts and also degradation rate of the ceramics are in accordance with bone regeneration rate. The most critical step is production of defect matching scaffold in on custom artificial bone applications. Therefore, powder based three dimensional (3D) printing become prominent because of the numerous advantages such as design independency and high controllability of inner and outer structure. Scaffolds were designed by using CAD programs and printed with CaSO4M.5H2O (calcium sulphate hemihydrate) powders by using 3D printing technology. Then mechanical and biological properties of the scaffolds were tested to investigate the usage potential of CaSO4.0.5H2O based 3D printed scaffolds in tissue engineering. Cytotoxicity results showed that 3D printed scaffolds provided a suitable environment for cell culture. As a result, usage of 3D printing technology in production of controllable scaffold production for artificial tissue development has an important potential.
{"title":"Development, 3D printing and characterization of calcium sulfate based scaffolds for bone tissue engineering","authors":"B. Aldemir, Serkan Dikici, O. Karaman, H. Oflaz","doi":"10.1109/BIYOMUT.2015.7369434","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369434","url":null,"abstract":"Clinic applications of bone tissue (BT) transplantation are used widely for treatment of large bone defects. In BT field, development of biomimetic bone tissue scaffolds which have appropriate chemical and mechanical properties for clinic applications is needed. Biomimetic bone tissue scaffolds should be used for bone grafts which are developed with tissue engineering approach to mimic extracellular matrix. Since bone have high percentage of hydroxyapatite, ceramic biomaterials have grand potential to be used as inorganic tissue scaffold. Literature shows that ceramic based scaffolds such as calcium sulphate, β-tricalcium phosphate and hydroxyapatite support cell attachment, can be resorbed by osteoclasts and also degradation rate of the ceramics are in accordance with bone regeneration rate. The most critical step is production of defect matching scaffold in on custom artificial bone applications. Therefore, powder based three dimensional (3D) printing become prominent because of the numerous advantages such as design independency and high controllability of inner and outer structure. Scaffolds were designed by using CAD programs and printed with CaSO4M.5H2O (calcium sulphate hemihydrate) powders by using 3D printing technology. Then mechanical and biological properties of the scaffolds were tested to investigate the usage potential of CaSO4.0.5H2O based 3D printed scaffolds in tissue engineering. Cytotoxicity results showed that 3D printed scaffolds provided a suitable environment for cell culture. As a result, usage of 3D printing technology in production of controllable scaffold production for artificial tissue development has an important potential.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130390416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369467
M. Sezdi, Nesrin Durmus
Each step in the sterilization process affects the sterilization quality. The shelf life of the sterilized material is directly related with this process. In this paper, a literature study investigating the non-conformities that affect the shelf life of the sterilization unit was presented. Specifically, non-conformities of the consumables used in the sterilization process were examined, corrective and preventive activities were planned.
{"title":"The nonconformities of the consumables in sterilization processes and corrective-preventive activities","authors":"M. Sezdi, Nesrin Durmus","doi":"10.1109/BIYOMUT.2015.7369467","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369467","url":null,"abstract":"Each step in the sterilization process affects the sterilization quality. The shelf life of the sterilized material is directly related with this process. In this paper, a literature study investigating the non-conformities that affect the shelf life of the sterilization unit was presented. Specifically, non-conformities of the consumables used in the sterilization process were examined, corrective and preventive activities were planned.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128560842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369447
Ceyda Nur Ozturk, S. Albayrak
This paper presents a voxel-classification-driven region-growing algorithm for automatically segmenting the whole femoral, tibial, and patellar cartilage tissues in high-field magnetic resonance (MR) images of the knee joint by taking into consideration systems with limited resources in particular. An abundance of background voxels and high dimensionality of the voxel samples were alleviated via various subsampling techniques and selecting fewer significant features, respectively. Experiments were conducted on 33 MR images obtained from the Osteoarthritis Initiative (OAI) database in three-dimensional (3-D) double echo in the steady state standard (DESS). After processing 10 MR images for training, four training models were generated by Gaussian, uniform, cartilage vicinity correlated (CVC) sparse, and CVC dense subsampling techniques. Then, their effect on the final segmentation accuracies of the cartilaginous compartments of interest on the remaining 23 test MR images was investigated. As a result, the training models of the CVC sparse subsampling technique, which reduced background voxels in weak proportion to their distances to the border cartilage voxels, produced the highest segmentation accuracies on average for all compartments.
{"title":"Efficient cartilage segmentation in high-field knee MR images with voxel-classification-driven region-growing algorithm","authors":"Ceyda Nur Ozturk, S. Albayrak","doi":"10.1109/BIYOMUT.2015.7369447","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369447","url":null,"abstract":"This paper presents a voxel-classification-driven region-growing algorithm for automatically segmenting the whole femoral, tibial, and patellar cartilage tissues in high-field magnetic resonance (MR) images of the knee joint by taking into consideration systems with limited resources in particular. An abundance of background voxels and high dimensionality of the voxel samples were alleviated via various subsampling techniques and selecting fewer significant features, respectively. Experiments were conducted on 33 MR images obtained from the Osteoarthritis Initiative (OAI) database in three-dimensional (3-D) double echo in the steady state standard (DESS). After processing 10 MR images for training, four training models were generated by Gaussian, uniform, cartilage vicinity correlated (CVC) sparse, and CVC dense subsampling techniques. Then, their effect on the final segmentation accuracies of the cartilaginous compartments of interest on the remaining 23 test MR images was investigated. As a result, the training models of the CVC sparse subsampling technique, which reduced background voxels in weak proportion to their distances to the border cartilage voxels, produced the highest segmentation accuracies on average for all compartments.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122751324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369433
M. E. Sayilgan, E. Kaplanoglu, A. Atasoy, S. Kuchimov, M. Ozkan
In this study, an interface is developed for the EMG reading glove for physical therapy patients. The purpose of the study is to make physiotherapy available anywhere with computer without the need to go to a therapy center. Physical therapist selects the exercises that fit to the user and sends the exercises to the exercise page of the program. User does the exercises using the wearable hand rehabilitation system. Program follows the user's movements, calculate success and generate a report. This program is developed on Visual Studio 2012 and is a continuous project of the "EMG Hand Rehabilitation and Support System". This process consists four phase, first is to make the exercise plan for the user, second is to demonstrate the exercises to the user, third are the readings of the user's hand movements, forth and the last phase is the animation and control.
本研究开发了一种用于物理治疗患者的肌电读数手套接口。这项研究的目的是使物理治疗在任何地方都可以使用电脑，而不需要去治疗中心。物理治疗师选择适合用户的练习，并将练习发送到程序的练习页面。用户使用可穿戴的手部康复系统进行练习。程序跟踪用户的动作，计算成功并生成报告。本程序是在Visual Studio 2012上开发的，是“肌电手康复支持系统”的连续项目。这个过程包括四个阶段，第一阶段是为用户制定锻炼计划，第二阶段是向用户演示练习，第三阶段是读取用户的手部动作，第四阶段是动画和控制。
{"title":"Hand rehabilitation and prosthesis training interface","authors":"M. E. Sayilgan, E. Kaplanoglu, A. Atasoy, S. Kuchimov, M. Ozkan","doi":"10.1109/BIYOMUT.2015.7369433","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369433","url":null,"abstract":"In this study, an interface is developed for the EMG reading glove for physical therapy patients. The purpose of the study is to make physiotherapy available anywhere with computer without the need to go to a therapy center. Physical therapist selects the exercises that fit to the user and sends the exercises to the exercise page of the program. User does the exercises using the wearable hand rehabilitation system. Program follows the user's movements, calculate success and generate a report. This program is developed on Visual Studio 2012 and is a continuous project of the \"EMG Hand Rehabilitation and Support System\". This process consists four phase, first is to make the exercise plan for the user, second is to demonstrate the exercises to the user, third are the readings of the user's hand movements, forth and the last phase is the animation and control.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131918344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369446
T. Koza, N. Karaboga
Filter banks are used like as sub band applications and sub band coding in the signal processing. Quadrature Mirror Filter (QMF) is a base filter bank for these applications. In this work, QMF bank designed for specific signal. QMF prototype filter parameters are designed with Differential Evolution Algorithm.
{"title":"Quadrature mirror filter bank design using differential evolution algorithm","authors":"T. Koza, N. Karaboga","doi":"10.1109/BIYOMUT.2015.7369446","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369446","url":null,"abstract":"Filter banks are used like as sub band applications and sub band coding in the signal processing. Quadrature Mirror Filter (QMF) is a base filter bank for these applications. In this work, QMF bank designed for specific signal. QMF prototype filter parameters are designed with Differential Evolution Algorithm.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123894280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369465
S. Uslu, Tunca Nuzket, Y. Albayrak, H. Uysal
In the study, Patellar T Reflex has been evaluated with tapping force measurement and Deep Tendon Reflex grading. Tapping force is measured with an electronic tendon hammer which is designed by us also can be used as a trigger system for determination of patellar T response. System was tested in Akdeniz University Medicine Faculty Neurology Department EMG Laboratory. In the study at least ten trace were obtained from 10 subjects and a total of 100 traces evaluations were performed. The experiment group consisted of people with no neurological disorders. The expected impact of the study is presenting the relationship between tendon reflexes that trigged with applied force to the tendon, deep tendon reflex grading and EMG response as quantitative rating. This led to further understanding of the important role that the reflex behavior in the neurological examination. Also, other departments that can use that study explained at results section.
{"title":"Detarmination of patellar T EMG response with the Deep Tendon Reflex grading and tapping force","authors":"S. Uslu, Tunca Nuzket, Y. Albayrak, H. Uysal","doi":"10.1109/BIYOMUT.2015.7369465","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369465","url":null,"abstract":"In the study, Patellar T Reflex has been evaluated with tapping force measurement and Deep Tendon Reflex grading. Tapping force is measured with an electronic tendon hammer which is designed by us also can be used as a trigger system for determination of patellar T response. System was tested in Akdeniz University Medicine Faculty Neurology Department EMG Laboratory. In the study at least ten trace were obtained from 10 subjects and a total of 100 traces evaluations were performed. The experiment group consisted of people with no neurological disorders. The expected impact of the study is presenting the relationship between tendon reflexes that trigged with applied force to the tendon, deep tendon reflex grading and EMG response as quantitative rating. This led to further understanding of the important role that the reflex behavior in the neurological examination. Also, other departments that can use that study explained at results section.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126226143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369458
Erdinc Turk, A. Oztas, U. Ulusar, M. Canpolat, Seyfettin Kazanir, M. Yaprak, G. Ogunc, V. Doğru, Orhan Can Canagir
Due to anesthesia loss of gastrointestinal motility is a common situation for patients who underwent abdominal surgery. The aim of this study is to present the bioacoustic sensor system developed for real time detection of recovery of gastrointestinal tract motility by observing bowel sounds and for bowel sound signal analysis. Different than other studies, in this study, in order to be able to attenuate environmental noise, bowel sounds were observed using two microphones. Bowel sounds were observed between 100 Hz and 1 kHz with maximum amplitude of 20mV. The signal was amplified 121 times and final signal amplitude was between 0-2, 4V. Similarly, environmental noise observed by the second microphone was amplified. Both of the signals were digitized using 12 bit analog digital converter of the ZigBee module (JN5139-Z01) and were transferred with wireless connection. With the developed software, spectral and temporal properties were obtained and presented in real-time. Finally, a stethoscope shaped box was designed for easy use of the sensor system.
{"title":"Wireless bioacoustic sensor system for automatic detection of bowel sounds","authors":"Erdinc Turk, A. Oztas, U. Ulusar, M. Canpolat, Seyfettin Kazanir, M. Yaprak, G. Ogunc, V. Doğru, Orhan Can Canagir","doi":"10.1109/BIYOMUT.2015.7369458","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369458","url":null,"abstract":"Due to anesthesia loss of gastrointestinal motility is a common situation for patients who underwent abdominal surgery. The aim of this study is to present the bioacoustic sensor system developed for real time detection of recovery of gastrointestinal tract motility by observing bowel sounds and for bowel sound signal analysis. Different than other studies, in this study, in order to be able to attenuate environmental noise, bowel sounds were observed using two microphones. Bowel sounds were observed between 100 Hz and 1 kHz with maximum amplitude of 20mV. The signal was amplified 121 times and final signal amplitude was between 0-2, 4V. Similarly, environmental noise observed by the second microphone was amplified. Both of the signals were digitized using 12 bit analog digital converter of the ZigBee module (JN5139-Z01) and were transferred with wireless connection. With the developed software, spectral and temporal properties were obtained and presented in real-time. Finally, a stethoscope shaped box was designed for easy use of the sensor system.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123196267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369441
Duygu Sahin, Adil Deniz Duru, A. Bayram, B. Bilgiç, T. Demiralp, A. Ademoglu
In our era, while the life span is expanding, neurodegenerative diseases, such as Alzheimer's disease (AD), pose a great threat upon the quality of life. Currently, one of the urgent goals of neuroscientists is to detect AD in its early stages. Since recent treatments and prevention techniques aim at early and presymptomatic stages, studies carried out to present possible biomarkers are of importance. Therefore, in this study, the objective is to check the suitability of the method to the find a distinctive agent for distinguishing AD and mild cognitive impairment (MCI) patients from controls via fMRI data analysis. In order to achieve that, functional connectivity networks are obtained from an optimized auditory oddball task fMRI data via a group ICA approach using temporal concatenation of the subject data. In this analysis, the initial component number is chosen as thirty and eight different network groups are determined from the spatial classification of the components. In this study, for three components (Attentional Network, Sensory-motor Network, Auditory Network), MCI group independent components (ICs) showed stronger modulation for target sounds when compared to standart sounds. Moreover, when compared to AD group, MCI group showed stronger modulation for standart sounds in their Attentional Network component.
{"title":"Task related modulation of group independent components of Alzheimer's disease and mild cognitive impairment patients","authors":"Duygu Sahin, Adil Deniz Duru, A. Bayram, B. Bilgiç, T. Demiralp, A. Ademoglu","doi":"10.1109/BIYOMUT.2015.7369441","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369441","url":null,"abstract":"In our era, while the life span is expanding, neurodegenerative diseases, such as Alzheimer's disease (AD), pose a great threat upon the quality of life. Currently, one of the urgent goals of neuroscientists is to detect AD in its early stages. Since recent treatments and prevention techniques aim at early and presymptomatic stages, studies carried out to present possible biomarkers are of importance. Therefore, in this study, the objective is to check the suitability of the method to the find a distinctive agent for distinguishing AD and mild cognitive impairment (MCI) patients from controls via fMRI data analysis. In order to achieve that, functional connectivity networks are obtained from an optimized auditory oddball task fMRI data via a group ICA approach using temporal concatenation of the subject data. In this analysis, the initial component number is chosen as thirty and eight different network groups are determined from the spatial classification of the components. In this study, for three components (Attentional Network, Sensory-motor Network, Auditory Network), MCI group independent components (ICs) showed stronger modulation for target sounds when compared to standart sounds. Moreover, when compared to AD group, MCI group showed stronger modulation for standart sounds in their Attentional Network component.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128415259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-11-01DOI: 10.1109/BIYOMUT.2015.7369460
F. Rahimov, Satlyk Gylyjov, Yusuf Efteli, Y. Ozturk, M. Engin
Glucose is one of the fundamental molecules used by organisms as the energy resource. Blood glucose level track and analysis are of special importance. Recently, most used methods are invasive and painful. For that reason, the development of non-invasive methods will provide many advantages. It has been known that polarisation angle of the light rotates when it pass throught the glucose solution. The optical methods for measure blood glucose level are getting development. In respect to this, it is important to determine optical properties of glucose. In this study, the polarisation rotation angle changes observed in various medium temperatures for in-vitro glucose solution to help blood sugar measurement on diabetes mellitus.
{"title":"Investigation of temperature dependent optical activity of α - Glucose","authors":"F. Rahimov, Satlyk Gylyjov, Yusuf Efteli, Y. Ozturk, M. Engin","doi":"10.1109/BIYOMUT.2015.7369460","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2015.7369460","url":null,"abstract":"Glucose is one of the fundamental molecules used by organisms as the energy resource. Blood glucose level track and analysis are of special importance. Recently, most used methods are invasive and painful. For that reason, the development of non-invasive methods will provide many advantages. It has been known that polarisation angle of the light rotates when it pass throught the glucose solution. The optical methods for measure blood glucose level are getting development. In respect to this, it is important to determine optical properties of glucose. In this study, the polarisation rotation angle changes observed in various medium temperatures for in-vitro glucose solution to help blood sugar measurement on diabetes mellitus.","PeriodicalId":143218,"journal":{"name":"2015 19th National Biomedical Engineering Meeting (BIYOMUT)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121449787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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