scholarly journals Mobile ECG Scanner Using Smartphone

2012 ◽  
Vol 1 (1) ◽  
pp. 85-96
Author(s):  
سامي حلواني، وسارودين كاري سامي حلواني، وسارودين كاري
Keyword(s):  
Electrical Activity ◽  
Remote Monitoring ◽  
Heart Diseases ◽  
Specific Treatment ◽  
Development Cost ◽  
Data Logging ◽  
Different Types ◽  
Main Components ◽  
Electrical Impulses ◽  
Huge Investment

ECG (electrocardiogram) is a test to measure the electrical activity of the heart by applying electrical impulses. The information obtained from an ECG can be analyzed to discover different types of heart diseases. It is useful to monitor a patient’s respond to a specific treatment. Some patients may need to move around while still being monitored by an ECG. Hence, it is important to have a mobile ECG solution. Building a stable and reliable mobile ECG solution needs huge investment especially if all main components are built from scratch. This research proposes to build the mobile ECG solution using available main components from the shelf. Bluetooth is used instead of USB in order to provide future flexibility to add more electrodes. In order to reduce the size, development cost, and time, Smartphone is used as the host PC. Present Smartphone have sufficient resources to provide the necessary data logging, HMI and remote monitoring. Keywords: ECG, Smartphone, Bluetooth, HMI

Detection and Conditioning of EMG

2018 ◽  
pp. 961-1000
Author(s):  
İmran Göker
Keyword(s):  
Electrical Activity ◽  
Clinical Studies ◽  
Skeletal Muscles ◽  
Clinical Importance ◽  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital ◽  
Emg Signal ◽  
Different Types ◽  
Main Components

In this chapter, the monitoring of the electrical activity of skeletal muscles is depicted. The main components of the detection and conditioning of the EMG signals is explained in the sense of the biomedical instrumentation. But, first, a brief description of EMG generation is introduced. The hardware components of the general instrumentation system used in the acquisition of EMG signal such as amplifier, filters, analog-to-digital converter are discussed in detail. Subsequently, different types of electrodes used in different EMG techniques are mentioned. Then, various EMG signals that can be detected and monitored via EMG systems are described and their clinical importance is discussed with detail. Finally, different EMG techniques used in clinical studies and their purposes are explained with detail.

Detection and Conditioning of EMG

2014 ◽  
pp. 58-94
Author(s):  
İmran Göker
Keyword(s):  
Electrical Activity ◽  
Clinical Studies ◽  
Skeletal Muscles ◽  
Clinical Importance ◽  
Analog To Digital Converter ◽  
Digital Converter ◽  
Analog To Digital ◽  
Emg Signal ◽  
Different Types ◽  
Main Components

In this chapter, the monitoring of the electrical activity of skeletal muscles is depicted. The main components of the detection and conditioning of the EMG signals is explained in the sense of the biomedical instrumentation. But, first, a brief description of EMG generation is introduced. The hardware components of the general instrumentation system used in the acquisition of EMG signal such as amplifier, filters, analog-to-digital converter are discussed in detail. Subsequently, different types of electrodes used in different EMG techniques are mentioned. Then, various EMG signals that can be detected and monitored via EMG systems are described and their clinical importance is discussed with detail. Finally, different EMG techniques used in clinical studies and their purposes are explained with detail.

Potential Uses of Vinegar as a Medicine and Related in vivo Mechanisms

2016 ◽  
Vol 86 (3-4) ◽  
pp. 127-151 ◽  
Author(s):  
Zeshan Ali ◽  
Zhenbin Wang ◽  
Rai Muhammad Amir ◽  
Shoaib Younas ◽  
Asif Wali ◽  
...  
Keyword(s):  
Chemical Structure ◽  
Review Paper ◽  
Heart Diseases ◽  
Folk Medicine ◽  
Active Role ◽  
Current Review ◽  
Different Types ◽  
Positive Effect

While the use of vinegar to fi ght against infections and other crucial conditions dates back to Hippocrates, recent research has found that vinegar consumption has a positive effect on biomarkers for diabetes, cancer, and heart diseases. Different types of vinegar have been used in the world during different time periods. Vinegar is produced by a fermentation process. Foods with a high content of carbohydrates are a good source of vinegar. Review of the results of different studies performed on vinegar components reveals that the daily use of these components has a healthy impact on the physiological and chemical structure of the human body. During the era of Hippocrates, people used vinegar as a medicine to treat wounds, which means that vinegar is one of the ancient foods used as folk medicine. The purpose of the current review paper is to provide a detailed summary of the outcome of previous studies emphasizing the role of vinegar in treatment of different diseases both in acute and chronic conditions, its in vivo mechanism and the active role of different bacteria.

scholarly journals Hypothalamic orexins/hypocretins as regulators of breathing

2008 ◽  
Vol 10 ◽  
Author(s):  
Rhîannan H. Williams ◽  
Denis Burdakov
Keyword(s):  
Electrical Activity ◽  
Medical Treatment ◽  
Emotional States ◽  
Hypothalamic Area ◽  
Respiratory Disorders ◽  
Orexin Receptors ◽  
Regulation Of Breathing ◽  
Electrical Impulses ◽  
The Relationship

It was suggested half a century ago that electrical impulses from the lateral hypothalamic area stimulate breathing. It is now emerging that these effects may be mediated, at least in part, by neurons containing orexin neuropeptides (also known as hypocretins). These cells promote wakefulness and consciousness, and their loss results in narcolepsy. Recent data also show that orexin neurons directly project to respiratory centres in the brainstem, which express orexin receptors, and where injection of orexin stimulates breathing. Because orexin neurons receive inputs that signal metabolic, sleep/wake and emotional states, it is tempting to speculate that they may regulate breathing according to these parameters. Knockout of the orexin gene in mice reduces CO2-induced increases in breathing by ∼50% and increases the frequency of spontaneous sleep apneas. The relationship between orexins and breathing may be bidirectional: the rate of breathing controls acid and CO2 levels, and these signals alter the electrical activity of orexin neurons in vitro. Overall, these findings suggest that orexins are important for the regulation of breathing and may potentially play a role in the pathophysiology and medical treatment of respiratory disorders.

Comparison of diffused layer prepared using liquid dopant solutions and pastes for solar cell with screen printed electrodes

2016 ◽  
Vol 33 (3) ◽  
pp. 167-171 ◽  
Author(s):  
Kazimierz Drabczyk ◽  
Edyta Wróbel ◽  
Grazyna Kulesza-Matlak ◽  
Wojciech Filipowski ◽  
Krzysztof Waczynski ◽  
...  
Keyword(s):  
Solar Cells ◽  
Ethyl Alcohol ◽  
Diffusion Processes ◽  
Phosphorus Oxychloride ◽  
Low Cost ◽  
Content Type ◽  
Base Solution ◽  
Different Types ◽  
Main Components ◽  
Two Stages

Purpose The purpose of this study is comparison of the diffusion processes performed using the commercial available dopant paste made by Filmtronics and the original prepared liquid dopant solution. To decrease prices of industrially produced silicon-based solar cells, the new low-cost production processes are necessary. The main components of most popular silicon solar cells are with diffused emitter layer, passivation, anti-reflective layers and metal electrodes. This type of cells is prepared usually using phosphorus oxychloride diffusion source and metal pastes for screen printing. The diffusion process in diffusion furnace with quartz tube is slow, complicated and requires expensive equipment. The alternative for this technology is very fast in-line processing using the belt furnaces as an equipment. This approach requires different dopant sources. Design/methodology/approach In this work, the diffusion processes were made for two different types of dopant sources. The first one was the commercial available dopant paste from Filmtronics and the second one was the original prepared liquid dopant solution. The investigation was focused on dopant sources fabrication and diffusion processes. The doping solution was made in two stages. In the first stage, a base solution (without dopants) was made: dropwise deionized (DI) water and ethyl alcohol were added to a solution consisting of tetraethoxysilane (TEOS) and 99.8 per cent ethyl alcohol. Next, to the base solution, orthophosphoric acid dissolved in ethyl alcohol was added. Findings Diffused emitter layers with sheet resistance around 60 Ω/sq were produced on solar grade monocrystalline silicon wafers using two types of dopant sources. Originality/value In this work, the diffusion processes were made for two different types of dopant sources. The first one was the commercial available dopant paste from Filmtronics and the second one was the original prepared liquid dopant solution.

scholarly journals Circulating Blood-Based Biomarkers in Pulmonary Hypertension

2022 ◽  
Vol 11 (2) ◽  
pp. 383
Author(s):  
Marta Banaszkiewicz ◽  
Aleksandra Gąsecka ◽  
Szymon Darocha ◽  
Michał Florczyk ◽  
Arkadiusz Pietrasik ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Biochemical Parameters ◽  
Specific Treatment ◽  
Right Heart Failure ◽  
Insufficient Data ◽  
Myocardial Remodeling ◽  
Right Heart ◽  
Cell Dysfunction ◽  
Diagnosis And Prognosis ◽  
Different Types

Pulmonary hypertension (PH) is a serious hemodynamic condition, characterized by increased pulmonary vascular resistance (PVR), leading to right heart failure (HF) and death when not properly treated. The prognosis of PH depends on etiology, hemodynamic and biochemical parameters, as well as on response to specific treatment. Biomarkers appear to be useful noninvasive tools, providing information about the disease severity, treatment response, and prognosis. However, given the complexity of PH, it is impossible for a single biomarker to be adequate for the broad assessment of patients with different types of PH. The search for novel emerging biomarkers is still ongoing, resulting in a few potential biomarkers mirroring numerous pathophysiological courses. In this review, markers related to HF, myocardial remodeling, inflammation, hypoxia and tissue damage, and endothelial and pulmonary smooth muscle cell dysfunction are discussed in terms of diagnosis and prognosis. Extracellular vesicles and other markers with complex backgrounds are also reviewed. In conclusion, although many promising biomarkers have been identified and studied in recent years, there are still insufficient data on the application of multimarker strategies for monitoring and risk stratification in PH patients.

scholarly journals A Medical Hardware-Software System for Remote Monitoring of Heart Diseases

2021 ◽  
Vol 24 (2) ◽  
pp. 78-86
Author(s):  
T. M. Magrupov ◽  
Z. M. Yuldashev ◽  
S. P. Abdihalikov
Keyword(s):  
Cardiovascular Diseases ◽  
Remote Monitoring ◽  
Heart Diseases ◽  
The State ◽  
Psychological State ◽  
Health State ◽  
Software System ◽  
Cardiovascular Parameters ◽  
Advantages And Disadvantages ◽  
Biological Objects

Introduction.  Wireless diagnostics of patients’  functional state is important  for ensuring timely detection and treatment of diseases. In this article, the development of a medical hardware-software system for remote monitoring of the state of biological objects is considered on the example of cardiovascular diseases.Aim. To develop a medical hardware-software system for remote monitoring of the main cardiovascular parameters and to expand the scope of medical remote telemetry equipment, which can eventually lead to improved medical services.Materials and methods.  On the example of cardiovascular diseases, an analysis of the existing medical hardwaresoftware system for remote monitoring of the state of biological objects was carried out, taking into account the cardiac monitoring of the electrocardiogram. This method is widely used for in the diagnostics and treatment of cardiovascular diseases.Results.  A  method  was proposed for creating  a  hardware-software  system  for  remote monitoring of the main cardiovascular parameters to ensure timely detection and treatment of diseases. The general structure of such a system, including its advantages and disadvantages and the routing of information, is described.  The proposed technology of  prolonged  remote monitoring of the patient's health state makes it possible to increase  the efficiency of detecting dangerous heartbeat arrhythmia by about 30%.Conclusions.  The  proposed system  solves  the  problem of registering biological parameters without significant interference in the patient’s vital  activity, which allows typical conditions to be traced. Remote data collection also facilitates the load on medical personnel, reduces the number of contacts with patients and improves their psychological state.

scholarly journals Medicinal Uses of Honey

2020 ◽  
pp. 8-12
Author(s):  
Mariia Nikolaevna Sarkisova ◽  
Natalia Viktorovna Biriukova
Keyword(s):  
Comparative Analysis ◽  
History Of Medicine ◽  
National Standards ◽  
Research Papers ◽  
Medicinal Uses ◽  
Stage Of Development ◽  
Different Types ◽  
History Of ◽  
Main Components ◽  
Current Stage

This article describes ways of using various types of honey in the history of medicine as well as its current stage of development. The authors consider the main components of different types of honey and the national standards of naturally sourced honey. An analysis of research papers on medical uses of honey has been performed, as well as a comparative analysis of recent honey-based medicines available in the pharmaceutical market. On the basis of collected data, some possible prospects for further use of honey in medicine have been outlined.

scholarly journals Galvanic Corrosion Behaviour of Phosphate Nodular Cast Iron in Different Types of Residual Waters and Couplings

2019 ◽  
Vol 70 (10) ◽  
pp. 3597-3602 ◽  
Author(s):  
Carmen Nejneru ◽  
Manuela Cristina Perju ◽  
Dumitru Doru Burduhos Nergis ◽  
Andrei Victor Sandu ◽  
Costica Bejinariu
Keyword(s):  
Cast Iron ◽  
Corrosion Behaviour ◽  
Galvanic Corrosion ◽  
Nodular Cast Iron ◽  
Low Alloy Steel ◽  
High Chemical ◽  
Different Types ◽  
Grey Cast ◽  
Main Components ◽  
Galvanic Corrosion Behaviour

The aim of this paper is to analyze the corrosion process that occurs in galvanic couplings of different alloys. The study focuses on materials that can come into contact in submersible pumps used by water treatment plants. Because, the rotor, one of the pump main components must possess high chemical and mechanical properties, nodular cast iron is usually used. Therefore, this is exposed in the same environment with different types of materials, such as aluminum, copper, bronze, grey cast iron, low alloy steel or stainless steel from which other components are made. The tests have been performed in three types of residual waters with neutral, acidic and basic pH. According to this study, the nodular cast iron galvanic corrosion resistance is highly improved by the phosphate layer deposited on its surface.

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