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Search Results: 1 - 10 of 12867 matches for " Mohammad Masoomi "
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Screw Conveyors Power and Throughput Analysis during Horizontal Handling of Paddy Grains
Hemad Zareiforoush,Mohammad Hasan Komarizadeh,Mohammad Reza Alizadeh,Mahdi Masoomi
Journal of Agricultural Science , 2010, DOI: 10.5539/jas.v2n2p147
Abstract: The tests reported in this research were conducted to determine the effects of those parameters believed to have the greatest influence upon horizontal screw conveyors throughput capacity and power requirement when handling paddy grains. Two screw conveyors with diameters of 20 and 25 cm were evaluated at four screw clearances (6, 9, 12 and 15 mm) and five screw rotational speeds (200, 300, 400,500 and 600 rpm). The results revealed that for both the conveyors tested, with increasing the screw rotational speed, the conveyor capacity increased and reached to a maximum point and after the point, the volumetric capacity decreased. Increasing the screw speed caused the volumetric efficiency and power requirements of the conveyors to be decreased and increased, respectively. The throughput capacity and power requirement of the conveyors increased (P<0.01) with increasing the auger dimensions. As the screw clearance increased, the throughput capacity and power requirement of the conveyors decreased (P<0.01).
Relationship between Calcium-Phosphorus Product and Severity of Valvular Heart Insufficiency in Patients Undergoing Chronic Hemodialysis
Masoumeh Kahnooji,Mohammad Masoomi,Ali Naderinasab,Akram Zaeem
Journal of Tehran University Heart Center , 2010,
Abstract: Background: Recent interests have mainly focused on the roles of serum calcium and phosphorus and their product (Ca-P product) in the development of valvular heart disease. The present study assessed the relationship between the Ca-P product and the severity of valvular heart disease in end-stage renal disease (ESRD) patients undergoing chronic hemodialysis.Methods: This cross-sectional study reviewed the clinical course of 72 consecutive patients with the final diagnosis of ESRD candidated for chronic hemodialysis. The severity of valvular heart disease was determined using M-mode two-dimensional echocardiography. The serum calcium and phosphate values adopted were those values measured on the day between the two consecutive dialyses, and the Ca-P product was calculated.Results: The most common causes of ESRD were diabetic nephropathy, malignant hypertension, and chronic glomerulonephritis. The mean Ca-P product level in the dialysis patients was 50.44 ± 17.78 mg2/dL2. The receiver-operator characteristic (ROC) curve illustrated that a Ca-P product level > 42 mg2/dL2 was the optimal value in terms of sensitivity and specificity for predicting the presence of valvular insufficiency. Aortic insufficiency was directly associated with a high Ca-P product value after adjustment for age, gender, serum albumin, diabetes, hypertension, hyperlipidemia, coronary artery disease, and serum creatinine (β = 0.412, SE = 158, p value= 0.011).Conclusion: A positive relationship between the Ca-P product value and the severity of aortic insufficiency is expected. Achieving an appropriate control of the Ca-P product level may decrease aortic valve calcification and improve the survival of patients on chronic hemodialysis.
Mohsen Masoomi
Academic Research International , 2012,
Abstract: Many reviewers and critics have noticeably referred to various techniques of multiple narration and polyphonic composition as major structural devices in The Joke. It is believed that Milan Kundera, on one hand uses the technique multiple narration to implement his major themes, and on the other hand, inserts the polyphony of music into the realm of his novel. As a matter of fact, for Kundera the narrative structure of The Joke resembles much to that of a musical note. While each note contains uniqueness on its own, it combines and accords with other notes to produce a coherent whole. Kundera gives unity and consistency to his novel through implementing a web of individual yet interconnected narrators/characters that best perform their duties in both narration and presentation. This multi-perspectival narrative style helps the writer to put in the picture the intended themes of the story through a polyphonic narrative.
Mohsen Masoomi
Academic Research International , 2012,
Abstract: Dismissing most of the traditional novelistic structures, Milan Kundera utilizes particular narrative devices to illustrate his own aesthetic of the novel, which emphasizes parallel explorations of related themes, active philosophical contemplation and the integration of dreams and fantasy with realistic analysis. Kundera succeeds in upgrading his specific subjects, characters and contexts to the worldwide level. Such success is attained through the implementation of various stylistic devices particularly narrative techniques. The multiperspective narration of the story gives more freedom to the readers in approaching the mind and consciousness of the writer. In addition, readers become encouraged to conjure up the imaginary being or the experimental self of the characters while taking advantage from Kudera’s relevant contemplation of existential code formula for characters; a fact which helps them more in a better understanding of the writer’s technique in characterization.
What is the Best Evidence Medical Education?
Rasoul Masoomi
Research and Development in Medical Education , 2012, DOI: 10.5681/rdme.2012.002
Abstract: Best Evidence Medical Education (BEME) is defined as: “The implementation by teachers and educational bodies in their practice, of methods and approaches to education based on the best evidence available.” Five steps have been recognized in the practice of BEME. These are: framing the question, developing a search strategy, evaluating the evidence, implementing change and evaluating that change. In this paper, I described the concept of BEME, its steps, and challenges.
Selection of Six Anterior Teeth for Edentulous Patients
M Memarian .,R Masoomi
Journal of Dental Medicine , 2005,
Abstract: Statement of Problem: Choosing an appropriate tooth for edentulous patients is a very important step indentistry.Purpose: This research has been done for determination of proper procedure for tooth selection in edentulous patients.Methods and Materials: In this cross- sectional study 100 student and people who have come to a medicalcenter (range 20-30 years old) were collected randomly and the size of their anterior teeth were determined. A gauge with 0.01 mm accuracy and flexible plastic millimeter was used in order for measurement of anatomic landmark. For achieving the relation between the sizes of teeth statistical analysis was done.Results: 50% of patients were female and the other 50% were male. We found a relationship between mesiodistal width of six maxillary anterior teeth and mesiodistal width of six mandibuMary teeth that can beshown as follow;In men: six mandibular anterior teeth width= 0.S3 * width of six maxillary anterior teeth -2.008 In women: six mandibular anterior teeth width- 0.56 * width of six maxillary anterior teeth + 9.53 Also strong meaningful relationships between width of six anterior maxillary teeth and the width between corners of the lip in curve position have been noticed only in men which can be show' as follow: width of Six mandibular anterior tceth= 39.63 + 0.21+ the width between corners of lip in curve position for men Conclusion: Although there are different ways for prediction of teeth size, it seems these findings can be helpful in determining and prediction of it.
Relationship between newborn Acid-Base status and umbilical cord morphology
Marssosi V,Masoomi F
Acta Medica Iranica , 2001,
Abstract: ess the relationship between umbilical cord blood gases at birth and morphology of umbilical cord, in a prospective study of 200 consecutive term delivery, we investigated the relationship between umbilical cord morphology characteristics (umbilical crd length, number of vascular coil, coiling index) and color of amniotic fluid and umbilical vessel blood gases. Statistically significant linear correlation was found between umblicial venous PH and the umbilical cord length (r=0.39, 95% CI 0.25, 0.53, P<0.03), umber of vascular coils (r=0.45 95% CI 0.31-0.59 P<0.012), and coiling index (r=0.34, 95% CI 0.12-0.48, P<0.04), and also negative linear correlation was found between umbilical venous partial pressure of carbon dioxide & of coli (r=0.3, 95% CI –0.44, -0.16 P<0.03). No relation was found between umbilical cord indices and meconium staining of amniotic fluid.Placental weight also correlated with umbilical cord length (r=0.17, 95% CI 0.03-0.31, P<0.03), but not with umbilical cord coils or coiling index.Umbilical venous pH is related to umbilical cord morphology but umbilical venous PCO2 was only related to the number of coils and umbilicat artery pH wa only related to the number of coils and not related to length or coiling index of umbilical cord morphology. The morphology of umbilical cord can affect maternal-fetal gas exchange
Traumatic Pseudoaneurysm of Internal Maxillary Artery: A Case Report
A Masoomi,A Fazlipour,M Davoodi
Iranian Journal of Radiology , 2009,
Abstract: Pseudoaneurysm of the internal maxillary artery (IMPA) is rare. We presented a 5-year-old girl with a mass in the right parotid area, one week after trauma. It was increasing progressively in size. Doppler sonography, computed tomography (CT), angiography and observation during surgery revealed pseudoaneurysm of the internal maxillary artery.
Road Traffic Injuries: A Challenge for Iran’s Health System
A Ardalan,GR Masoomi,MM Goya,MR Sarvar
Iranian Journal of Public Health , 2009,
Abstract: "nRoad traffic injury (RTI) was the leading cause of premature death and disability in I.R.Iran, measured by disability-ad-justed life-year (DALY) in 2003. In this paper, we describe the progress and challenges of health system dealing with RTI. MOH&ME has initiated or contributed in national efforts with collaboration of Police, Ministry of Road & Transportation (MoRT), media and Iranian Red Crescent Society (IRCS). As for the pre-crash and crash phases, EMC works on Safe Community (SC) project and public awareness. To minimize the risk of post-crash phase, MOH&ME has enhanced the EMS capacity in terms of technical, equipmental and operational, which has led to coverage of 95% of mass casualty inci-dents and decreasing the "to scene" and "transport" times. Despite the 16.9% decreasing number of RT-related death in 2007, Iran is in the highest rank in the world. RTI prevention needs a national concerted campaign with collaboration of health system and all other concerned partners. The most costly interventions are those deals with road design and safety during pre-crash and crash phases. But, focusing on people through awareness of safe traffic behavior with combination of low enforcement, would lead decreasing the RTI in shorter time. Health system needs to focus on groups at the highest risk, including urban accidents and young men drivers. Increasing the quality and coverage of EMS, road risk assessment and close intersectoral collaboration would assist health system on the prevention programs. Injury research and surveillance are the basis for effective injury prevention.
Disaster Health Management: Iran’s Progress and Challenges
A Ardalan,GR Masoomi,MM Goya,M Ghaffari
Iranian Journal of Public Health , 2009,
Abstract: "nI.R.Iran is exposed to a wide variety of natural and man-made hazards. Human-related consequences of disasters and its im-pact on health service delivery bring the health to the top agenda of disaster management. This article presents the DHM's pro-gress in Iran and the related challenges. Iran has achieved considerable academic and administrative success in terms of emer-gency management and risk reduction in health sector, but many rooms for improvement are left. Earthquakes of Bam (2003), Zarand (2005) and Lorestan (2006), Golestan floods (2001 and 2005), Cyclone Gonu (2007) and re-current droughts were the largest disasters during last 10 years, which health system could learn from and apply the lessons learned. The chal-lenges have been changed during last decade, as disaster health management upgraded from a unit under Center for Environ-mental Health to Emergency Management Center under deputy of minister directing national Emergency Opera-tions Center (EOC). Heath system needs strengthening intra and inter-sectoral collaboration and coordination, information man-agement system, community-based initiatives and integration of disaster health management in Primary Health Care (PHC) network. It also needs to focus on disaster risk reduction, while enhancing response capacity. Investing on research would lead to quality decision-making in disaster health management.
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