International Journal of Academic Scientific Research
ISSN: 2272-6446 Volume 8, Issue 1 (February – March 2020)
All listed papers are published after full consent of respective author or co-author(s).
For any discussion on research subject or research matter, the reader should directly contact to undersigned authors.
Prediction of MINOCA in Men Using ECG and Clinical History
Mahmoud Mardenli, Abdulla Samman
ABSTRACT: Recently, cases of myocardial infarction with non-obstructive coronary arteries lesions “which are closer to be normal sometimes” have been noticed to increase during cardiac coronary catheterization. This phenomenon has re-highlighted the psychological and physiological factors causing infarction, and studied thoroughly pathological mechanisms that take place at the vascular endothelial level and in the muscle cellular matrix in general, in an attempt to detect factors responsible for this exacerbating phenomenon. In this study, we divided patients with myocardial infarction into two groups; one including 20 male patients who have myocardial infarction with non-obstructive coronary arteries (target group), and the other including 180 male patients who have myocardial infarction with obstructive coronary arteries (control group). In our research, we tried to study many clinical factors and electrocardiographic markers, and link them with cases of infarction with normal arteries. Then, we compared those with their conventional counterparts who have infarction with obstructive arteries. We also included the psychological distress factor as an independent indicator, and tried to find its connection with this disorder. At the end of the study, we found that there are important statistical characteristics that largely deny normal arteries and outweigh obstructive injury such as diabetes, age group, and electrocardiographic changes on limb lead II, while we did not notice any statistical significance of smoking or hereditary story for prediction in the two groups.
Preparing and Testing of Nanometer Polymeric Filters (Polyethylene oxide, Polyurethane) Manufactured by Electrospinning and Determining Their Properties
Mohammad Yousef Al Hashem , Mohammad Karman
ABSTRACT: The aim of this research is to manufacture and test nanofiber filters made of Polyurethane (PU) and Polyethylene oxide (PEO) using electrospinning. In addition, the principle of electrospinning process explained. The effect of polymer percentage, electric voltage and the distance between the needle and the collector were studied. Filter fiber diameter was measured on the Scanning Electron Microscope (SEM) and reached to about 100 nm for PU and about 40 nm for PEO. The filters had been tested by placing the E. coli bacteria on their surface and the test showed that they did not penetrate through the filter therefore the fibers produced can be used to manufacture filters with high filtration accuracy.
Numerical Study of Flanged Diffuser Augmented Wind Turbine
Mohammad Youssef Al Hashem, Wafaa Fares
The aim of this work is to develop a wind turbine system that consists of a diffuser shroud with flanges at the inlet and the exit peripheries. The flanged-diffuser shroud plays a role of a device for collecting and accelerating the approaching wind. The flange generates a low-pressure region at the exit of the diffuser by vortex formation and draws more mass flow to the wind turbine inside the diffuser shroud especially at the throat and the front flange which make air easier to pass. To obtain the optimum diameter of the entry flanged diffuser height, three different diameters of entry flange were investigated, and the optimum diameter of the entry flange was found. Furthermore, the optimum entry flange was fixed and seven heights of rear exit flange were examined. As a result, the suggested wind turbine system demonstrated power augmentation for a given turbine diameter and wind speed by 16% compared to wind turbine without entry flange.
Biological Activity of Some Herbal Medication on Liver Diseases: Article Review
Daklallah Ahmed Almalki
ABSTRACT: The use of herbal medicine can be traced back to more than 4000 years ago in ancient china. Over recent decades, an increasing number of herbal products, including medicinal herbs and phytochemicals, have been used for treating chronic liver diseases worldwide due to the high abundance, long-lasting curative effects and few adverse effects. According to the previous studies, medicinal herbs and phytochemicals could protect the liver by several mechanisms such as eliminating virus, blocking fibrogenesis, inhibiting oxidative injury and suppressing tumorigenesis. Chronic liver dysfunction or injury is a serious health problem world wise. Chronic liver disease involves a wide range of liver pathologies that include fatty liver, hepatitis, fibrosis, cirrhosis, and hepatocellular carcinoma. The efficiency of current synthetic agents in treating chronic liver disease is not satisfactory and they have undesirable side effects. Thereby, numerous medicinal herbs and phytochemicals have been investigated as complementary and alternative treatments for chronic liver diseases. Since some herbal products have already been used for the management of liver diseases in some countries or regions, a systematic review on these herbal medicines for chronic liver disease is urgently needed. Herein, we conducted a review describing the potential role, pharmacological studies and molecular mechanisms of several commonly used medicinal herbs and phytochemicals for chronic liver diseases treatment. Their potential toxicity and side effects were also discussed. Several herbal formulae and their biological effects in chronic liver disease treatment are also summarized in this paper.
[Download] PP 35-43
Security Council’s draft resolutions regarding Syria, are they really humanitarian based?
Faisal Baraa ALMARASHI
When the so-called Arab Spring arrived in Syria, it brought with it some serious consequences. Hundreds of thousands of civilians were slaughtered along with the destruction of ancient and modern cities in Syria. In addition to this, the refugee crisis threatened both regional and international peace and security. All these disasters led the UN Security Council to issue a resolution for international humanitarian intervention in Syria along the lines of humanitarian military intervention that took place in Libya, but after several attempts it failed due to the repeated vetoes from Russia and China. This study will focus on two direction in which the first is the response of the United Nations Security Council (UNSC) toward the Syrian Crisis, while the second is the effects of the international community behavior toward the Syrian Crisis. In other words, the aim of this article is to compare the two direction in order to come up with an answer whether the past UNSC drafts resolutions concerning Syria were really humanitarian aimed or not.