نتایج جستجو برای: medical signals

تعداد نتایج: 776464  

The Infomax algorithm is a popular method in blind source separation problem. In this article an extension of the Infomax algorithm is proposed that is able to separate mixed signals with any sub- or super-Gaussian distributions. This ability is the results of using two different nonlinear functions and new coefficients in the learning rule. In this paper we show how we can use the distribution...

In this paper, unique approach is presented for the electroencephalography (EEG) signals analysis. This is based on Eigen values distribution of a matrix which is called as scaled Hankel matrix. This gives us a way to find out the number of Eigen values essential for noise reduction and extraction of signal in singular spectrum analysis. This paper gives us an approach to classify the EEG signa...

Journal: :iranian journal of neurology 0
mazyar hashemilar neurosciences research center (nsrc), student research committee, tabriz university of medical sciences, tabriz, iran. mehdi farhoudi neurosciences research center (nsrc), student research committee, tabriz university of medical sciences, tabriz, iran samane hosseini neurosciences research center (nsrc), student research committee, tabriz university of medical sciences, tabriz, iran hanieh moshayedi neurosciences research center (nsrc), student research committee, tabriz university of medical sciences, tabriz, iran dariush savadi oskoui neurosciences research center (nsrc), student research committee, tabriz university of medical sciences, tabriz, iran behzad eskandar oghli neurosciences research center (nsrc), student research committee, tabriz university of medical sciences, tabriz, iran

background: in patients with acute stroke and middle cerebral artery (mca) stenosis, microembolic signals (mes) can predict further cerebral ischemia. therefore, this study was designed to evaluate the prevalence of mes by transcranial doppler (tcd) in patients with mca stenosis under treatment of aspirin or clopidogrel. methods: a randomized clinical trial was performed on 40 patients with acu...

Journal: :iranian journal of medical sciences 0
marie saghaeian jazi department of molecular medicine, golestan university of medial sciences, gorgan, iran seyed mahmoud arab najafi department of cell and molecular biology, school of biology, tehran university, tehran, iran

background: the canonical wnt signal transduction (or the wnt/β-catenin pathway) plays a crucial role in the development of animals and in carcinogenesis. beta-catenin is the central component of this signaling pathway. the activation of wnt/β-catenin signaling results in the cytoplasmic and nuclear accumulation of β-catenin. in the nucleus, β-catenin interacts with the tcf/lef transcription fa...

Journal: :Journal of Physics: Conference Series 2021

As the environment getting polluted, people are suffering with different medical problems also causes about their health as well. Considering this in mind, Body sensor based human activity recognition attracting researcher towards direction. A fusion of electrocardiogram signals and accelerometer processed through convolution neural network is proposed paper. Accelerometer placed at location bo...

 Background and purpose: The nonlinear quality of electroencephalography (EEG), like other irregular signals, can be quantified. Some of these values, such as Lyapunovchr('39')s representative, study the signal path divergence and some quantifiers need to reconstruct the signal path but some do not. However, all of these quantifiers require a long signal to quantify the signal complexity. Mate...

Journal: :رادار 0

in this paper, we examine target detection in the surveillance channels of fm-based passive bistatic radars (fbpbrs) in the presence of interference signals in the reference channels of these systems. to do so, we propose a new signal conditioning algorithm to remove interference signals form reference channel. simulation results show that the proposed signal conditioning algorithm outperform t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان 1389

چکیده این تحقیق " مواد درسی " را به عنوان یکی از بحث برانگیزترین موضوعات آموزش زبان تلقی کرده و درتلاش است به سه سوال عمده پاسخ دهد: 1) آیا بکارگیری جزوات گرداوری شده توسط گروهی از مدرسین تاثیر بسزایی در میزان توانش خواندن و درک متون انگلیسی دانشجویان پزشکی دارد؟ 2) آیا استفاده از مواد درسی اصلی( بین المللی )، توانش خواندن و درک متون انگلیسی دانشجویان پزشکی را به طور چشمگیری تحت تاثیر قرار م...

Journal: :modern care journal 0
آزیتا فشارکی نیا a fesharakinia birjand university of medical sciencesدانشگاه علوم پزشکی بیرجند طاهره خزاعی t khazaei birjand university of medical sciencesخیابان غفاری- دانشگاه علوم پزشکی بیرجند- دانشکده پیراپزشکی زهره خزاعی z khazaei birjand university of medical sciencesدانشگاه علوم پزشکی بیرجند محبوبه محمدپور m mohammadpoor birjand university of medical sciencesدانشگاه علوم پزشکی بیرجند

background and aim: academic evaluation is one of the strategies applied for the enhancement of teaching conditions. student-based evaluation is one of the most common kinds of evaluation. the current study is aimed at the identification of important criteria of academic evaluation from the viewpoint of medical school students.   materials and methods: this is a descriptive, cross-sectional stu...

Journal: :acta medica iranica 0
p. mehdipour m. atri

breast cancer is preservative of the genetic heterogeneous alterations. in the present investigation, fluorescence in situ hybridization (fish) was performed on the fresh primary tumours of 6 patients with infilterating ductal carcinoma. dna-probe for centromere of chromosome 3 (3cen) was applied and in the total analysis, the majority of interphases presented 1 signal (33.6%) which followed by...

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