2018 26th Signal Processing and Communications Applications Conference (SIU), 2018
In brain-computer interface system (BCIs), direct communication between humans and computers is p... more In brain-computer interface system (BCIs), direct communication between humans and computers is performed by analyzing neural signals and transforming them into digital signals. In the continuation of our previous works, in this paper, we advanced the proposed BCI system that was based on the gaze on rotating vanes. The speed of communication and convenience of the user are very important factors in BCI systems. Therefore, in this paper, for the convenience of the user, a single EEG channel was used. Also, for to increase the speed of the system, we tried to the classification of 0.5 sec epochs with a partial least squares regression (PLSR) as a fast classifier. In addition, we computed the information transfer rate (ITR) that has proved our proposed BCI system is fast and accurate. This system could be used in real-time implementations due to having high classification rate, speed and convenience of the user.
2017 25th Signal Processing and Communications Applications Conference (SIU), 2017
The method of time-frequency analysis are the ways that mainly are used to analyze electroencepha... more The method of time-frequency analysis are the ways that mainly are used to analyze electroencephalography (EEG) signals. In our previous studies, we proved that watching 2D and 3D of a movie causes different effects in EEG signals. In this paper, we used dataset of previous study and mean of five EEG frequency bands as features. To obtain these frequency bands, a frequency analysis and two time-frequency analysis are used. Aim of this paper is that which one of these methods can be provide better features. These methods are Fast Fourier Transform (FFT), Discrete Wavelet Transform (DWT) and Wigner-Ville Distribution (WVD). To compare these methods Partial Least Squares Regression (PLSR) as a powerful classifier was implemented. The results show that PLSR could be classified Wigner-Ville Distribution's features better than other method's features.
Background: Striae is a common condition that is relatively difficult to treat. Recently, carboxy... more Background: Striae is a common condition that is relatively difficult to treat. Recently, carboxytherapy was proposed as a treatment modality. This study aimed to evaluate the therapeutic effect of carboxytherapy in patients with striae. Methods: This was a pilot clinical study. Patients were treated with 10 sessions of carboxytherapy every week. The patients were photographed at the onset of the treatment course, before each treatment session, and three months after the last ones. Two dermatologists compared the images of each patient before and three months after treatment and evaluated the treatment response based on the following scores: I, no improvement (0%);II, poor (1% to 25%); III, fair (26% to 50%); IV, good (51% to 75%); and V, excellent improvement (76% to 100%). Furthermore, patients’ satisfaction with therapy outcome was recorded on a scale of 0 to 10. Results: 15 patients were enrolled in this study; 2 (13.4%) were male and 13 (86.6%) were female. Three patients (20%)...
Objective(s): Infection with the human T-cell lymphotrophic virus type-I (HTLV-I) is endemic in M... more Objective(s): Infection with the human T-cell lymphotrophic virus type-I (HTLV-I) is endemic in Mashhad, Iran. In our research we evaluated the relation between exposure to this infection and the occurrence of dermatologic manifestations. Materials and Methods: 100 blood donors, who were seropositive but asymptomatic for infection with HTLV-I, were selected as case group. They were identified by the Blood Transfusion Organization Mashhad via the ELISA test and documented by PCR. Another 100 blood donors, that were seronegative for HTLV-I via the ELISA test and who were matched to the case group for age, gender, and existence of systemic diseases, were considered as the controls. Dermatologic evaluations and skin biopsies were performed if deemed necessary, and the results were statistically analyzed. Results: 73% of the case and control groups were male, while 27% in each of these groups were female. The mean age in both groups was 40.96±11.94 years. The examination indicated that 5...
In industry, managers must select portfolios of projects for funding, in order to advance the cor... more In industry, managers must select portfolios of projects for funding, in order to advance the corporate goals. There are generally many more projects than funding can support. Ideally, managers aim to select an optimal subset of projects to meet the company’s goals while complying with budgetary restrictions. At the same time, they seek to control the overall risk of a portfolio of projects and ensure that cash flow or other such performance objectives are maximized. The purpose of this paper is applying a new integrated method for Portfolio Selection. Proposed approach is based on Fuzzy Prioritization Method and TOPSIS. Fuzzy Prioritization Method is used in determining the weights of the criteria by decision makers and then ranking of Portfolios are determined by TOPSIS method. In this paper a numerical example demonstrates the application of the proposed method.
The main challenge for training in cosmetic dermatology is the difference in the attitudes of res... more The main challenge for training in cosmetic dermatology is the difference in the attitudes of residency programs and residents about the necessity and amount of education during the residency period. A national online survey conducted between September 6 th and November 21 st , 2017. Residents, members of the Iranian Board of Dermatology, faculty members and program directors (PDs) were asked to participate in the survey.174 participants from 12 residency programs participated in this study and the response rate of residents, professors, and Dermatology Board Directory Members (Boardmans) and PDs was 89.8%, 61.7%, and 81.8%, respectively. Residents declared greater tendency towards practicing medical dermatology (mean score, 5.165±0.8335) over the five years after graduation than that of was perceived by professors (4.043±1.2988), and Boardmans and PDs (4.059±1.0290) ( P ˂0.001). The first residents’ priority was practicing in medical dermatology (5.165±0.8335) during 5-years after ...
The aim of this study is to develop a computational prediction model for implantation outcome aft... more The aim of this study is to develop a computational prediction model for implantation outcome after an embryo transfer cycle. In this study, information of 500 patients and 1360 transferred embryos, including cleavage and blastocyst stages and fresh or frozen embryos, from April 2016 to February 2018, were collected. The dataset containing 82 attributes and a target label (indicating positive and negative implantation outcomes) was constructed. Six dominant machine learning approaches were examined based on their performance to predict embryo transfer outcomes. Also, feature selection procedures were used to identify effective predictive factors and recruited to determine the optimum number of features based on classifiers performance. The results revealed that random forest was the best classifier (accuracy = 90.40% and area under the curve = 93.74%) with optimum features based on a 10-fold cross-validation test. According to the Support Vector Machine-Feature Selection algorithm, ...
Cutaneous leishmaniasis is an endemic disease in Iran. Unfortunately, it can lead to unsightly at... more Cutaneous leishmaniasis is an endemic disease in Iran. Unfortunately, it can lead to unsightly atrophic scars with limited treatment options. Fractional CO2 laser is accepted for treatment of atrophic acne scars and recently has been used to treat cutaneous leishmaniasis, so we planned to use fractional CO2 laser on leishmaniasis scar. We conducted this study on 60 leishmaniasis scars on the face of 40 patients. The lesions were treated by a fractional CO2 laser with beam size of 120 μm, with energy of 50-90 mJ, and 50-100 spots/cm(2) density with two passes in three monthly sessions. Evaluation was done in the first and second months after the first treatment and 3 and 6 months after the last treatment. Digital photography was performed at each visit. Assessment of improvement rate by patient and physician was rated separately as follows: no improvement (0 %), mild (<25 %), moderate (25-50 %), good (51-75 %), and excellent (76-100 %). Based on patients' opinion, in the first...
Basic and Clinical Toxicology of Mustard Compounds, 2015
The skin is one of the important affected target organs by sulfur mustard (SM) as a chemical weap... more The skin is one of the important affected target organs by sulfur mustard (SM) as a chemical weapon, besides the eyes and lungs. Skin exposure with sulfur mustard results in the onset of a multiple series of events including a full set of dermal responses for normal wound healing and their mutual influence on each other, eventually leading to skin toxicity. In this process, various mediators that have a regulating role in inflammation, apoptosis, immune responses and some signaling pathways are involved. In this chapter we try to describe the current knowledge on the potential mechanisms which mediate the SM actions on skin, the clinical manifestations in the acute phase of exposure and years later (delayed or chronic ones), histopathology of SM-exposed skin and the potential therapeutic countermeasures.
Manifestations in HTLV-I Positive Blood Donors. Iran J Basic Med Sci: 2013; Objective(s): Infecti... more Manifestations in HTLV-I Positive Blood Donors. Iran J Basic Med Sci: 2013; Objective(s): Infection with the human T-cell lymphotrophic virus type-I (HTLV-I) is en-demic in Mashhad, Iran. In our research we evaluated the relation between exposure to this infection and the occurrence of dermatologic manifestations. Materials and Methods: 100 blood donors, who were seropositive but asymptomatic for infection with HTLV-I, were selected as case group. They were identified by the Blood Transfusion Organization Mashhad via the ELISA test and documented by PCR. Another 100 blood donors, that were seronegative for HTLV-I via the ELISA test and who were matched to the case group for age, gender, and existence of systemic diseases, were con-sidered as the controls. Dermatologic evaluations and skin biopsies were performed if deemed necessary, and the results were statistically analyzed. Results: 73% of the case and control groups were male, while 27% in each of these groups were female. The m...
2018 26th Signal Processing and Communications Applications Conference (SIU), 2018
In brain-computer interface system (BCIs), direct communication between humans and computers is p... more In brain-computer interface system (BCIs), direct communication between humans and computers is performed by analyzing neural signals and transforming them into digital signals. In the continuation of our previous works, in this paper, we advanced the proposed BCI system that was based on the gaze on rotating vanes. The speed of communication and convenience of the user are very important factors in BCI systems. Therefore, in this paper, for the convenience of the user, a single EEG channel was used. Also, for to increase the speed of the system, we tried to the classification of 0.5 sec epochs with a partial least squares regression (PLSR) as a fast classifier. In addition, we computed the information transfer rate (ITR) that has proved our proposed BCI system is fast and accurate. This system could be used in real-time implementations due to having high classification rate, speed and convenience of the user.
2017 25th Signal Processing and Communications Applications Conference (SIU), 2017
The method of time-frequency analysis are the ways that mainly are used to analyze electroencepha... more The method of time-frequency analysis are the ways that mainly are used to analyze electroencephalography (EEG) signals. In our previous studies, we proved that watching 2D and 3D of a movie causes different effects in EEG signals. In this paper, we used dataset of previous study and mean of five EEG frequency bands as features. To obtain these frequency bands, a frequency analysis and two time-frequency analysis are used. Aim of this paper is that which one of these methods can be provide better features. These methods are Fast Fourier Transform (FFT), Discrete Wavelet Transform (DWT) and Wigner-Ville Distribution (WVD). To compare these methods Partial Least Squares Regression (PLSR) as a powerful classifier was implemented. The results show that PLSR could be classified Wigner-Ville Distribution's features better than other method's features.
Background: Striae is a common condition that is relatively difficult to treat. Recently, carboxy... more Background: Striae is a common condition that is relatively difficult to treat. Recently, carboxytherapy was proposed as a treatment modality. This study aimed to evaluate the therapeutic effect of carboxytherapy in patients with striae. Methods: This was a pilot clinical study. Patients were treated with 10 sessions of carboxytherapy every week. The patients were photographed at the onset of the treatment course, before each treatment session, and three months after the last ones. Two dermatologists compared the images of each patient before and three months after treatment and evaluated the treatment response based on the following scores: I, no improvement (0%);II, poor (1% to 25%); III, fair (26% to 50%); IV, good (51% to 75%); and V, excellent improvement (76% to 100%). Furthermore, patients’ satisfaction with therapy outcome was recorded on a scale of 0 to 10. Results: 15 patients were enrolled in this study; 2 (13.4%) were male and 13 (86.6%) were female. Three patients (20%)...
Objective(s): Infection with the human T-cell lymphotrophic virus type-I (HTLV-I) is endemic in M... more Objective(s): Infection with the human T-cell lymphotrophic virus type-I (HTLV-I) is endemic in Mashhad, Iran. In our research we evaluated the relation between exposure to this infection and the occurrence of dermatologic manifestations. Materials and Methods: 100 blood donors, who were seropositive but asymptomatic for infection with HTLV-I, were selected as case group. They were identified by the Blood Transfusion Organization Mashhad via the ELISA test and documented by PCR. Another 100 blood donors, that were seronegative for HTLV-I via the ELISA test and who were matched to the case group for age, gender, and existence of systemic diseases, were considered as the controls. Dermatologic evaluations and skin biopsies were performed if deemed necessary, and the results were statistically analyzed. Results: 73% of the case and control groups were male, while 27% in each of these groups were female. The mean age in both groups was 40.96±11.94 years. The examination indicated that 5...
In industry, managers must select portfolios of projects for funding, in order to advance the cor... more In industry, managers must select portfolios of projects for funding, in order to advance the corporate goals. There are generally many more projects than funding can support. Ideally, managers aim to select an optimal subset of projects to meet the company’s goals while complying with budgetary restrictions. At the same time, they seek to control the overall risk of a portfolio of projects and ensure that cash flow or other such performance objectives are maximized. The purpose of this paper is applying a new integrated method for Portfolio Selection. Proposed approach is based on Fuzzy Prioritization Method and TOPSIS. Fuzzy Prioritization Method is used in determining the weights of the criteria by decision makers and then ranking of Portfolios are determined by TOPSIS method. In this paper a numerical example demonstrates the application of the proposed method.
The main challenge for training in cosmetic dermatology is the difference in the attitudes of res... more The main challenge for training in cosmetic dermatology is the difference in the attitudes of residency programs and residents about the necessity and amount of education during the residency period. A national online survey conducted between September 6 th and November 21 st , 2017. Residents, members of the Iranian Board of Dermatology, faculty members and program directors (PDs) were asked to participate in the survey.174 participants from 12 residency programs participated in this study and the response rate of residents, professors, and Dermatology Board Directory Members (Boardmans) and PDs was 89.8%, 61.7%, and 81.8%, respectively. Residents declared greater tendency towards practicing medical dermatology (mean score, 5.165±0.8335) over the five years after graduation than that of was perceived by professors (4.043±1.2988), and Boardmans and PDs (4.059±1.0290) ( P ˂0.001). The first residents’ priority was practicing in medical dermatology (5.165±0.8335) during 5-years after ...
The aim of this study is to develop a computational prediction model for implantation outcome aft... more The aim of this study is to develop a computational prediction model for implantation outcome after an embryo transfer cycle. In this study, information of 500 patients and 1360 transferred embryos, including cleavage and blastocyst stages and fresh or frozen embryos, from April 2016 to February 2018, were collected. The dataset containing 82 attributes and a target label (indicating positive and negative implantation outcomes) was constructed. Six dominant machine learning approaches were examined based on their performance to predict embryo transfer outcomes. Also, feature selection procedures were used to identify effective predictive factors and recruited to determine the optimum number of features based on classifiers performance. The results revealed that random forest was the best classifier (accuracy = 90.40% and area under the curve = 93.74%) with optimum features based on a 10-fold cross-validation test. According to the Support Vector Machine-Feature Selection algorithm, ...
Cutaneous leishmaniasis is an endemic disease in Iran. Unfortunately, it can lead to unsightly at... more Cutaneous leishmaniasis is an endemic disease in Iran. Unfortunately, it can lead to unsightly atrophic scars with limited treatment options. Fractional CO2 laser is accepted for treatment of atrophic acne scars and recently has been used to treat cutaneous leishmaniasis, so we planned to use fractional CO2 laser on leishmaniasis scar. We conducted this study on 60 leishmaniasis scars on the face of 40 patients. The lesions were treated by a fractional CO2 laser with beam size of 120 μm, with energy of 50-90 mJ, and 50-100 spots/cm(2) density with two passes in three monthly sessions. Evaluation was done in the first and second months after the first treatment and 3 and 6 months after the last treatment. Digital photography was performed at each visit. Assessment of improvement rate by patient and physician was rated separately as follows: no improvement (0 %), mild (<25 %), moderate (25-50 %), good (51-75 %), and excellent (76-100 %). Based on patients' opinion, in the first...
Basic and Clinical Toxicology of Mustard Compounds, 2015
The skin is one of the important affected target organs by sulfur mustard (SM) as a chemical weap... more The skin is one of the important affected target organs by sulfur mustard (SM) as a chemical weapon, besides the eyes and lungs. Skin exposure with sulfur mustard results in the onset of a multiple series of events including a full set of dermal responses for normal wound healing and their mutual influence on each other, eventually leading to skin toxicity. In this process, various mediators that have a regulating role in inflammation, apoptosis, immune responses and some signaling pathways are involved. In this chapter we try to describe the current knowledge on the potential mechanisms which mediate the SM actions on skin, the clinical manifestations in the acute phase of exposure and years later (delayed or chronic ones), histopathology of SM-exposed skin and the potential therapeutic countermeasures.
Manifestations in HTLV-I Positive Blood Donors. Iran J Basic Med Sci: 2013; Objective(s): Infecti... more Manifestations in HTLV-I Positive Blood Donors. Iran J Basic Med Sci: 2013; Objective(s): Infection with the human T-cell lymphotrophic virus type-I (HTLV-I) is en-demic in Mashhad, Iran. In our research we evaluated the relation between exposure to this infection and the occurrence of dermatologic manifestations. Materials and Methods: 100 blood donors, who were seropositive but asymptomatic for infection with HTLV-I, were selected as case group. They were identified by the Blood Transfusion Organization Mashhad via the ELISA test and documented by PCR. Another 100 blood donors, that were seronegative for HTLV-I via the ELISA test and who were matched to the case group for age, gender, and existence of systemic diseases, were con-sidered as the controls. Dermatologic evaluations and skin biopsies were performed if deemed necessary, and the results were statistically analyzed. Results: 73% of the case and control groups were male, while 27% in each of these groups were female. The m...
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Papers by Masoud Maleki