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Search Results: 1 - 10 of 1054 matches for " MH Lotfi "
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Evaluation of Antichlamydia Pneumonia Antibody in Patients With Coronary Artery Disease
Karimi M,Nough H,Lotfi MH,Zadeh AJ
Indian Journal of Community Medicine , 2006,
Evaluation of Peritoneal Dialysis Complications and Survival of Patients; A Single Center Study, Yazd ,Iran
M Rahimian,M Karimi,MH Lotfi,N Noori majelan
Journal of Shahid Sadoughi University of Medical Sciences , 2008,
Abstract: Introduction: Peritoneal dialysis is an established form of renal replacement therapy used in many patients with end – stage renal disease . Peritoneal dialysis has different complications This study was conducted in order to evaluate its complications and different survival probabilities of factors in Shahid Rahnemoon hospital . Methods: In this retrospective, historical cohort study, reports of 161 patients on peritoneal dialysis (Shaheed Rahnemoon hospital, dialysis department) from 3.Dec.1997 to 20.May.2007 were evaluated. Required data was gathered and analyzed by specific statistical tests. Results: The mean age of patients was 49.37 years (2 to 88 years) and most of them (41.6%) included in 40-59 years age group category. Peritonitis, exit site infection and catheter malposition was seen in 41.6% , 6.8% and 9.3% of patients ,respectively.Rate of peritonitis in females was more than males (p=0.002). Diabetes mellitus had no effect on death rate, but hypertension had a protective role. Conclusion: Peritonitis ,exit site infection and catheter malposition is more prevalent in females, but mortality rate is significantly higher in males.
Hydration Status of Adult Population of Yazd
S Jafary-Nodushan,M Shakiba,MH Lotfi
Journal of Shahid Sadoughi University of Medical Sciences , 2008,
Abstract: Introduction: Water is an essential nutrient for life. It comprises 75% of total body weight in infants,60% in adult males and 50% in adult females. Decrease in body water is commonly known as dehydration. Acute or chronic dehydration is a common condition in some population groups, especialy the elderly and those who participate in physical activity in warm enviroments. Potential consequences of dehydration include constipation,urinary tract and respiratory infection,urinary stone disease and there might also be an association between a low habitual fluid intake and some carcinomas,cardiovascular disease and diabetes. Many indices have been investigated to establish their role as markers of dehydration status. Body mass changes,blood indices,urine indices and bioelectrical impedance analysis have been used most widely, but current evidence and opinion tend to favour urine indices as the most convenient and sensitive methods. Methods: This cross sectional study was done for estimating the prevalence of dehydration in adult population(students,nurses,officials,workers)in Yazd. These persons were selected randomly. Urine samples of two hundred and thirty persons were obtained at 10-12 AM,and urine specific gravity measured by refractometer (all of the samples)and dip stick (some samples). Finding: According to this study,96.7% of our population had some degree of dehydration.69.7% of them were significantly dehydrated(urine SG>1020) and 4.8% of them were severely dehydrated (urine SG>1030) and the mean specific gravity was 1021±5/65. This study evaluated other factors that could probably indicate hydration status like urine colour, type of drink,frequency of urination and frequency of thirst per day. Conclusion: High percentage of our population were dehydrated which was not correlated to the type of drink but was correlated to urine colour, frequency of urination and frequency of thirst. So, regular monitoring of urine to keep if clear or light yellow is a simple way to prevent dehydration.
Comprehensive Information System on Mobile Devices via Bluetooth Application Server  [PDF]
Abbas Ali Lotfi Neyestanak
iBusiness (IB) , 2010, DOI: 10.4236/ib.2010.23039
Abstract: Advantage of cell phones and their rapid progress on facilities and applications, made a technical trend to develop software implementations for this kind of systems. On the other hand, Java package with some efficient tools and products made it quite desirable for producers in a wide range of applications. In this paper the Bluetooth technology has been studied and its defects and premiums and security threats are investigated and compared with other technologies. Finally a comprehensive information system is designed, simulated and implemented based on cell phone communications. This system actually utilizes the Bluetooth technology to send and receive variety of packets such as data, image, and sound between computer and cell phone. These transferred data are then processes at the either sides and the revealed data is presented to the user. Wide 100 meter coverage has been considered for this system utilizing advanced automatic traffic management routines.
Recycling of End of Life Concrete Fines into Hardened Cement and Clean Sand  [PDF]
Somayeh Lotfi, Peter Rem
Journal of Environmental Protection (JEP) , 2016, DOI: 10.4236/jep.2016.76083

One of the massive by-products of concrete to concrete recycling is the crushed concrete fines, that is often 0 - 4mm. Although the construction sector is to some extent familiar with the utilization of the recycled coarse fraction (>4 mm), at present there is no high-quality application for fines due to its moisturized and contaminated nature. Here we present an effective recycling process on lab scale to separate the cementitious powder from the sandy part in the crushed concrete fines and deliver attractive products with the minimum amount of contaminants. For this study, a lab scale Heating-Air classification system was designed and constructed. A combination of heat and air classification, resulted in a proper separation of finer fraction (0 - 0.250 mm), from coarser fractions. Heating of the materials was followed by ball milling to enhance the liberation of the cementitious fraction. Experiments were carried out at different heating temperatures and milling durations. Experimental results show that by heating the materials to 500 for 30 seconds, the required time of ball milling is diminished by a factor of three and the quality of the recycling products satisfies well the market demand. In addition, the removal of contaminants is complete at 500. The amount of CaO in the recovered finer fraction from the recycling process is comparable with the amount of CaO in low-quality limestone. By using this fraction in the cement kiln as the replacement of limestone, the release of the chemically bound CO2 could be reduced by a factor of three.

Study of the Photon Flux and the Dose Rate in the Vicinity of a 60Co Gamma Irradiator  [PDF]
Elassaad Jemii, Lotfi Ghedira
World Journal of Nuclear Science and Technology (WJNST) , 2016, DOI: 10.4236/wjnst.2016.62009
Abstract: The present work presents an overview of the study of some dosimetric quantities in the vicinity of the Tunisian Gamma Irradiation Facility. Firstly, we have confirmed our previous calculation of the photon flux and the dose rates, using a simulation with GEANT 4. A good agreement between calculation and simulation was obtained, which well confirmed the modeling of the CNSTN extended source by a pencil-like source. Secondly we have determined the isodose curves in the vicinity of the irradiator using a straightforward calculation. Finally, we have presented many comments for some published work concerning the methods used to determine these dosimetric quantities.
A case of a unilateral unusual genicular branch of the common peroneal nerve with bilateral high division of sciatic nerves and unusual bilateral thickness of peroneal communicating nerve
Ali MH,Eweidah MH
International Journal of Anatomical Variations , 2010,
Abstract: On dissection of an adult male Filipino cadaver, an unusual genicular branch from the left common peroneal nerve was found terminating in the capsule of the knee joint. Extra care by the surgeon is required to separate this variant nerve from the small saphenous vein and intraneural ganglion during knee operation. A bilateral higher division of the sciatic nerve was observed below the lower border of piriformis muscle. In the cases of popliteal blockage, the knowledge of the variations in the bifurcation of the sciatic nerve is significant. Bilateral thick communicating peroneal nerves were dissected. The sural nerves were very much reduced in size and communicating peroneal nerves largely replaced the innervations in the lower legs. This finding is important because of its use in nerve transplantation. In this case, the presence of an unusual genicular branch is a rare finding. In combination with the other stated findings in the same cadaver makes it interesting.
A Study of the One- Year Survival Rate of Patients with Acute Myocardial Infarction
MH Soltani,MH Ahmadieh
Journal of Shahid Sadoughi University of Medical Sciences , 2004,
Abstract: Introduction :Acute myocardial infarction (AMI) is the most common cause of death in many countries, and also one of the common causes of death in Iran. As the death rate due to AMI is not clear and the survival rate of these patients had not yet been studied in the city of Yazd, this study was undertaken. Methods and materials : This was a survival study performed in Yazd between the years 2000 and 2002. 210 patients with definite AMI (according to clinical findings, ECG and enzyme criteria) were enrolled in this study (case series). They were admitted to Shahid Rahnemoon Hospital of Yazd (A general hospital). Results : The population under study included 161 males with mean age of 59 14 years and 59 females with mean age of 66 10 years. Frequency of hypertension, diabetes mellitus, hypercholestrolemia, hypertriglyceridemia and smoking was 27%, 22%, 20%, 22% and 32%, respectively. All risk factors except smoking were more common in females than men. 83.3% of infarctions were Q-wave infarctions, 16.7% non- Q-wave infarctions. 53% inferior wall and 40% were anterior wall infarctions. Infusion of streptokinase was done for 62% of patients. Mean ejection fraction of left vantricle was 48% in males and 45% in females. In-hospital mortality rate was 12.4% and higher in patients older than 70 years, diabetics, and anterior wall infarction patients. It had no correlation with sex. Surprisingly, smoking was accompanied with a very low in-hospital mortality rate. Conclution : One – year mortality rate of the patients in this study was 16.7% . It was higher in females, diabetics, anterior wall infarction patients and those with an ejection fraction less than 45%. The one year mortality rate in smokers was comparitively lower than non smokers in this study.
Analysis and Evaluation of the Ecological Restoration of the City with an Emphasis on Urban Metabolism  [PDF]
Ahmadreza Lotfi, Seyed Abdolhadi Daneshpour
Open Journal of Ecology (OJE) , 2016, DOI: 10.4236/oje.2016.67036
Abstract: It would not be far-fetched to say that people’s lives depend on their environment and its quality. With growing urbanization of this dependence is growing increasingly urban environment. Urbanization not only balances economic and social development in the cities but also stirs the regional ecological imbalances and the natural areas. In addition to these problems, there is disruption of water, air, soil and environment built on imbalances between urban areas and the lack of social vitality and frustration. All cities, especially metropolitan with developing economies face to uncertainty in terms of health, environment and quality of life. This article utilizes the ecological and environmental issues and integrates it with urban metabolism approach to the study’s revival of urban ecology, something that results in enhanced quality of life for citizens. This research is the theoretical and analytical method. In the research process of this study, related domestic and foreign literature subsequently of traditional and electronic library resources, books and articles published in journals have been used. According to the type of research in this study, descriptive analysis was performed. Based on findings of this study, urban ecology is a tool to control and guide of urban growth and activities in a way to improve quality of urban environment. Applying urban ecology in designing cities has provided opportunities to create practical ecological systems. By using them, natural process, human activities and urban environment could be combined. Moreover, urban metabolism as an indicator of urban sustainability and a part of urban ecology includes two main related and non-contra-dictory approaches of odum and MFA. Due to difficulties which modern cities face to, benefiting and applying these approaches seem vital.
On an queueing system
Lotfi Tadj
Mathematical Problems in Engineering , 2000, DOI: 10.1155/s1024123x00001447
Abstract: The author studies a service delayed queueing system with priority discipline. The joint queue size distribution is derived in the steady state.
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