- They include local Matlab software distributor employers
- Matlab R2011a unable to compile mex files
- Using either of these functions makes Matlab call clear java which does clear all global variables
- We can also use standard Matlab handles like current axis, current figure or current object
- What makes Matlab powerful tool are vectors and matrices
- Students use Matlab for their computations and solutions in their bachelor, diploma or dissertation theses
- This chapter will discus topics suitable for basic Matlab course
- Many software applications are accessible for teaching as Matlab, Octave, Scilab and Mathematica, for example
- Conferences were dedicated to presentations of the MATLAB / Simulink, dSPACE and COMSOL Multiphysics users
With weekly tasks evaluation students gained good amount of point that they carry to the exam. This type of evaluation does not fit everyone and in the next part of this session we will be talking about its advantages and disadvantages.
When reading a portion of MP3 and M4A files on Linux platforms, audioread mightread a shifted range of samples. This is due to a limitation in theunderlying GStreamer framework.
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Syncope occurs in around 15–25% of patients with HCM and is caused by a variety of mechanisms which ultimately lead to decreased cardiac output. Some of these include AF, LVOT obstruction and conduction abnormalities such as atrioventricular nodal block. Syncope not due to vasovagal or cardiogenic causes is an increased risk for SCD, especially when occurring in young patients. Predictors of SCD includes experiencing at least one syncopal episode include a family history of SCD from HCM, massive LVH, unexplained syncope, LV apical aneurysm, HCM with LV systolic dysfunction [13, 14].
Razzaghi-Abyaneh is a research scientist and head of Mycology Department of the Pasteur Institute of Iran where he is working on mycotoxins and mycotoxigenic fungi, antimicrobial nanomaterials, and biologically active compounds of plant, fungal and bacterial origin. He also investigates ecology and genetic diversity of Aspergillus section Flavi and mode of action of antifungal paptides and other small and macromolecules at cellular and molecular level. He has extensive experiences in cell separation and fractionation, protein extraction and purification, enzyme manipulation, molecular genetics, chromatographic (TLC and HPLC) analyses of mycotoxins, purification of plant antifungal metabolites and electron microscopy of filamentous fungi.
Patients suffering from ARVC should minimize their strenuous physical activity since there is a significant association between exercise and ARVC. Beta blockers are recommended for patients with clinical symptoms but not asymptomatic patients with a positive genotype. ICDs are indicated for patients who were previously resuscitated from SCD and those with sustained ventricular arrhythmias. If beta blockers and ICDs are not helpful, antiarrhythmic drugs or radiofrequency ablation can serve as adjunct therapy. Management of patients with RV dysfunction is similar to other patients with HF with reduced ejection fraction (ACEi, ARBs, mineralocorticoid receptor antagonist, diuretics, and BBs).
Results of the students are evaluated through point assigning for each course independently at the Faculty of Electrical Engineering and Information Technology Bratislava (Blaho et al. 2010a, 2010b). Students can achieve 100 points at most. Most times points are divided into two parts. The first amount of the points can student achieved for their activity at practices or tests through term. The second part they can achieve on the exam test. In the most cases it is 30/70 (practice/exam) or 40/60. Weight is on the exam as you can see. Maximum amount of the points allowed during term is 50 for the undergraduate courses.
Computer Vision with MATLAB for Object Detection and
RCM is significantly less common universally than both DCM and HCM. However, mortality from RCM is high in Africa, South and Central America, and Asia. This is due to a higher incidence of endomyocardial fibrosis, which is one of the major causes of RCM.
Conception and design: All authors. Manuscript writing: All authors. Final approval of manuscript: All authors.
Technology surrounds us in every step we take. Computers, mobile phones or cars would not exist without smart researchers and innovators. We need more and more engineers and scientists to sustain technological growth. The current state of technology and technological growth is facing two problems. The first problem is population declining in many countries. Germany is a country with least population growth in Europe, for example. The second problem is that many industrial and research centres demand high quality engineers (Blau, 2021). These two problems come hand in hand as you can imagine. Society can affect both of them in some way but providing high quality engineers is what we can affect at fastest. Learning is an important process in our lives.
Another common symptom is angina, both typical (following exertion) and atypical, which is frequently worsened after heavy meals. The pathophysiology behind this chest pain in HCM can be broken down into two categories: increased myocardial oxygen demand and decreased myocardial blood flow. HCM increases oxygen demand in several ways including increased muscle mass, myocardial hypertrophy and disarray, and increased diastolic pressures due to LVOT obstruction. Causes of decreased myocardial blood flow in HCM is due to decreased ability of coronary arterioles to vasodilate and myocardial fibrosis.
Your manuscript will be sent to Straive, a leader in content solution services, for language copyediting. You will then receive a typeset proof formatted in XML and available online in HTML and PDF to proofread and check for completeness. The first typeset proof of your manuscript is usually available 10 days after its original submission.
Restrictive cardiomyopathy (RCM) presents as non-dilated ventricles and diastolic dysfunction. It causes a ventricular filling defect, leading to elevated pressure and biatrial enlargement. Systolic function is generally normal unless RCM becomes more severe.
Dilated cardiomyopathy (DCM) manifests as global dilation of one or both ventricles leading to systolic dysfunction. Left ventricular ejection fraction is ≤40% and affected patients can develop symptomatic heart failure (HF). DCM causes around 10,000 deaths and 46,000 hospitalizations in the United States each year. Idiopathic DCM is the leading indication for heart transplantation . Affected patients are generally between 20 and 60 years of age . Symptoms vary, but most patients present with HF symptoms of progressive dyspnea with exertion, peripheral edema, orthopnea, and/or paroxysmal nocturnal dyspnea. Conduction disturbances, cardiomegaly, thromboembolic disease, and sudden death can also be observed [5, 6].
Video Processing in MATLAB
It can be subcategorized into dilated, hypertrophic, restrictive, unclassified, and arrhythmogenic right ventricular cardiomyopathy/dysplasia. They can be further subdivided into primary and secondary cardiomyopathy. Primary includes genetics (HOCM, ARVC/D), mixed (DCM, RCM) or acquired (stress-induced, myocarditis) causes; while secondary cardiomyopathy is derived from the involvement of other organ systems. Cardiomyopathies can be identified by echocardiogram to display the anatomic and functional changes related to each subtype including systolic or diastolic dysfunction. In certain instances, cardiac-MRI or CT are used to further elucidate its specific characteristics such as fatty infiltration and focal hypertrophy. Treatment is very diverse and catered to each individual case.
Systolic dysfunction is observed in DCM and stress-induced cardiomyopathy as decreased LVEF and increased EDV on echo. Diastolic dysfunction is observed in HCM and RCM and can sometimes occur in DCM. An echo of diastolic dysfunction demonstrates normal LVEF and EDV.
Some information and feedback we have already gained through the Facebook and Matlab forum during the term
After the essential topics lectures and practices it is time to choose advanced topics. Advanced topics depend on a study program of the students. Because our students studying cybernetics and robotics we focused after basic topics to topics related to their curriculum. In this session we are describing some of them next.
Simulation in the Simulink does not respect real time. If the Simulink schema is simple to the simulation it will be faster than in real time and if schema is complex simulation will be slower than in real time. If we interact with real systems though the Simulink we must ensure precise timing. Interaction with the real time systems is necessary for the measuring physical values (inputs) and reaction to them through outputs. Port of computers can be used to do that with sound card, USB, parallel or serial port even with specialized measuring cards.
I am a newer user of Matlab (explanation) and have been experimenting with the Image Processing toolbox. As far a comparing version R2012a versus R2013a have any of you found any issues, positive changes, are know where to learn more about the benefits to using one versus the other?
Arrhythmogenic right ventricular cardiomyopathy echo shows dilation of the RV and its outflow tract, aneurysm, akinesis, and dyskinesis. Genetic testing is recommended (DSC2, DSP, DSG2, JUP, TMEM43, and PKP2).
Management of the cardiomyopathies are generally directed towards relieving symptoms, slowing progression of the disease, and preventing SCD. The specific therapy depends on whether the patient is suffering from systolic dysfunction, diastolic dysfunction, fluid overload and/or arrhythmias.
Hypertrophic cardiomyopathy (HCM) is a disease of the heart muscle that is mainly due to genetic mutations in sarcomere genes, the contractile component of the heart. The prevalence of HCM is about 0/5% in adults and typically has an autosomal dominant transmission pattern . HCM is defined by left ventricular hypertrophy (LVH), which manifests with a multitude of different clinical features. The location and amount of hypertrophy will determine the clinical presentation which can include left ventricular outflow tract (LVOT) obstruction, myocardial ischemia, diastolic dysfunction and mitral regurgitation.
Computer aided learning has found a way in learning process from primary schools to universities (Abdullah et al, 2021, Bertrand, 1989). Computers are also significantly involved in teaching technology serving sciences like mathematics, physics and information technology. Technical computing plays an important role in these specializations. Many software applications are accessible for teaching as Matlab (https://kislovoadmin.ru/hack/?patch=3575), Octave, Scilab and Mathematica, for example. Other specialized programs exist as well, but they are often used to solve specialized problems and tasks. Therefore we are not going to mention them. The worldwide most spread applications at educational institutions used by is Matlab (https://kislovoadmin.ru/hack/?patch=4856), which is considered as standard in technical computing and science (The MathWorks, 2012a). Matlab is a very powerful tool for computing and simulation. Basic mathematical core provides functions for high performance computing. On top of that, Matlab provides add-ons (toolboxes) to enhance its usage via adding more functions in specialized fields of technology, economics, medicine or biology.
The lectures are not only source of the materials. Students use many different materials at the practices. The main material for Matlab (https://kislovoadmin.ru/hack/?patch=4429) study could be the Matlab reference manual that covers all topics and functions that students can use. Matlab reference manual is also accessible online. Student can search the Matlab topics and functions help without installing Matlab tools. Mathworks support education of all parts of Matlab through various online content (The Mathworks 2012a, 2012b, 2012c). Online events called webinars are recorded regularly and they are available for later use. Webinars are categorized by date of the recording, application, product and industry. This helps users to fast find necessary contents. Many languages are supported as well and that helps overcome language barrier for the novice users.
Read Portion of Audio File
Computers connected to the Internet access are present at the practice room. Students can find their problems solutions on the web pages. On our webpage at which we publish student’s articles we decided to write small papers about Matlab in Slovak language. Papers slowly cover the Matlab topics so the students have many tutorials. Beyond the articles discussion to the paper is available.
Course can be taken in second term of the first year of undergraduate study. It consists of one lecture (100 minutes) and practice (100 minutes) per week. The lectures are not compulsory, but practices are. Count of the attendance at lectures is more than a half of all students. The lectures are combination of explanation of the current topic, solving of basic tasks and discussion. All of tasks are solved directly on the computer using Matlab. The students are allowed to see how to solve the concrete problem and can write the notes into their hand-out. The full preprint of lecture is available a week ahead on the web pages of the course. The students can print this hand-out before the lecture. The hand-out with notes are useful source of the information for the practices.
Plotyy legend for multiple lines
DCM is frequently idiopathic, indicated after exclusion of both primary and secondary causes of cardiac disease except genetic causes. Familial disease is seen in about 50% of patients with idiopathic DCM. The disease is generally inherited in autosomal dominant fashion but also other forms of inheritance (autosomal recessive, X-linked, and mitochondrial). Mutations in more than 30 genes were identified in the past 20 years. Sarcomere genes are responsible for about 30% of familial DCM cases. These include mutations in genes for beta myosin heavy chain (MYH7), cardiac troponin T (TNNT2), titin (TTN), alpha-tropomyosin (TPM1), and cardiac troponin C (TNNC1) .
Signal values from the Simulink models can be plotted into charts. These signals can be also used for animation of models and Simulink 3D Animation provides this capability. Virtual Reality Mark-up Language represents 3D models using basic shapes and properties like geometry, appearance or translation. Virtual reality worlds can be built using several programs but the Simulink 3D Animation includes V-Realm Builder. Build 3D world is saved as *wrl file and with VR Sink Simulink block we can interact with our simulation. Building 3D animations is one of the interesting topics of our course for students and they are really enjoying it. With the differential equations from previous practices we are animating simple pendulum that oscillates from right angle to equilibrium. Visualization of this system is in the next figure.
Stress-induced cardiomyopathy, also known as takotsubo cardiomyopathy or broken heart syndrome, is characterized as brief systolic dysfunction in the absence of coronary artery disease that is usually brought on by stress. The systolic dysfunction is focal and mainly limited to the cardiac apex which is in contrast to DCM where we see global systolic dysfunction.
Equations represents trajectory of an object thrown in 2D plane from start point (x0, y0) with speed (v0) at some angle (α). With given acceleration due to gravity (g) we can compute distance (x) and height (y) of objects trajectory at certain time (t). In the next figure you can see trajectories for different angles with same start point, speed and gravity.
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Cardiomyopathies can be characterized into two different groups, primary and secondary. Primary cardiomyopathies are defined by primary involvement of the heart while secondary cardiomyopathies are consequences of other medical disease states such as endocrine diseases or drug induced. Primary cardiomyopathies can be further divided by their causes. These include cardiomyopathies of genetic, acquired, or mixed origin .
Arrhythmogenic right ventricular cardiomyopathy (ARVC) is defined by right ventricular (RV) origin arrhythmias and structural abnormalities. The myocardium is scarred and replaced with fibrous or fibro-fatty tissue. Scarring can occur first regionally and then become global leading to RV dilation, RV dysfunction, and wall motion abnormalities. Demonstration of biventricular myocardial injury is illustrated through the use of autopsy investigations, genotype and phenotype correlation studies and cardiac MRI. However, these diagnostic tools show an equal or increased extent of left ventricular severity when compared to the right ventricular involvement. This development has led to a new understanding of arrhythmogenic cardiomyopathy(ACM) . ACM/ARVC is generally inherited in an autosomal dominant fashion. However, autosomal recessive inheritance has also been noted as in the cardiocutaneous syndrome, Naxos disease . Patients can present with palpitations, dizziness, syncope, atypical chest pain, and dyspnea, but many are asymptomatic. The most common arrhythmia of ARVC is monomorphic ventricular tachycardia with a left bundle branch block.
Diastolic dysfunction is characterized by abnormal myocardial filling and relaxation with concurrent elevated filling pressures. It can occur in combination with systolic dysfunction or it can be an isolated phenomenon. Its main features are due to impairment of active relaxation and/or passive compliance during LV diastole. This takes place during both isovolumetric relaxation and early rapid filling. Diastolic dysfunction is a common characteristic of both HCM and RCM and can sometimes be seen in patients with DCM. It is also found secondary to myocardial hypertrophy presenting with decreased compliance. An echo study is done to identify diastolic dysfunction where a normal LVEF and EDV are seen, however occasionally systolic function may be impaired. These two markers are one way to differentiate diastolic from systolic dysfunction, both of which lead to a common clinical endpoint of heart failure symptoms.
I am learning neural networks via MATLAB 2012a, I followed some examples. In one of the examples I found internet, create a feed forward net with 2 hidden layers, the first layer has 3 neurons and the second layer has 1 neuron. From the default feed forward net created by: net = feedforwardnet I can see there are 2 hidden layers, but I can not see how many neurons are there in each layer.
Dilated cardiomyopathy demonstrates systolic dysfunction, ventricular dilation, myocyte hypertrophy and fibrosis, and possible conduction system involvement. Familial DCM is diagnosed when idiopathic DCM is seen in two or more close relatives. A three to four generation family history and clinical screening (history, exam, electrocardiogram, echocardiogram) of first-degree relatives is done when a new diagnosis is made to identify asymptomatic/undetected disease. Genetic testing is also done for known familial DCM and nonfamilial without an obvious alternative cause. Screening for specific mutations does not necessarily determine therapy, but certain genes are related to clinical characteristics. This may affect family counseling, screening, and influence of primary prevention or pre-symptomatic therapy .
- Advanced topics should cover additional parts of the Matlab necessary for later student courses
- Matlab contains many add-ons that are very useful in many fields of science
- Matlab contains several plotting commands for 2D and 3D figures
- They can extend knowledge gained from the Matlab course on the other courses
- Students can ask any Matlab related questions on the forum
- We established new Facebook group for the students of the Matlab course
- Matlab prefers Statecharts through Stateflow, which is design environment for developing them
MATLAB 2012a: Face Detection
I was looking through the new features in the MATLAB 2012a release, and one thing that caught my eye the most was some face detection algorithms have been added. This is great because I get questions about it a fair amount. I am lending the blog to my friend and colleague, Bruce, to show you what is new in this area of MATLAB.
Over all we focused on the educational use of Matlab, concepts for lecturers and the course improvements
The most common presenting symptom is HF seen clinically as dyspnea on exertion. This is found in approximately 90% of symptomatic patients and can result from diastolic dysfunction caused by hypertrophy, impaired LV emptying from the LVOT obstruction, and mitral regurgitation. Concurrent systolic dysfunction is also seen in very extensive disease due to adverse LV remodeling .
Computers really changed our lives and today are almost impossible to imagine life without them. We often use them without knowing it. Computer by itself is a really powerful tool for computing, but for many years also for communication and sharing information. In fact, the basic idea for the Internet was collaboration across the continents with other researchers. We significantly use this tool today not only for sharing information but also in the teaching process. E-learning is most popular and modern activity in this process. We are also using web technologies for improving our student’s results. Although possible we do not use any Learning management system (LMS).
Our novel approach to the Matlab teaching process is recommended to copy for another universities as well
Cardiomyopathies are a heterogeneous group of diseases of the myocardium that are associated with mechanical and/or electrical dysfunction. They generally exhibit inappropriate ventricular hypertrophy or dilation and have multiple etiologies, which are often genetic . They can be further subdivided into primary and secondary cardiomyopathy. Primary includes genetics, acquired or mixed causes; while secondary cardiomyopathy is derived from the involvement of other organ systems. Cardiomyopathies can be identified by echocardiogram to display the anatomic and functional changes related to each subtype including systolic or diastolic dysfunction. In certain instances, cardiac-Magnetic resonance imaging or Computer tomography scans are used to further elucidate its specific characteristics such as fatty infiltration and focal hypertrophy. Treatment is very diverse and catered to each individual case. This will all be further elaborated on in the following chapter.
The figure 4 shows that students did very well in tasks during term. Almost half of them gained maximum points. But the question is: How well did students at exam succeeded?