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Assessment of technical efficiency of hospitals under Hamadan University of Medical Sciences on performance indicators and data envelopment analysis model in 2010
Reza Safi Arian,Reza Shahhoseini
Pajouhan Scientific Journal , 2013,
Abstract: Introduction: This study was aimed to evaluate the technical efficiency of Hamadan University of Medical Sciences and functional indexes based on using mathematical model analysis of inclusive data (DEA) in 2010.Material and Methods: This study is a cross – sectional, the data field of library and information through the use of doctoral dissertations and master and go directly to the hospital and the University's center for statistics. This method has limitations in dealing method using data envelopment analysis (DEA) to evaluate the technical efficiency of hospitals DEAP2 prescription coverage has been Hamadan University of medical sciences. The model used in this study analysis of multistage DEA model is used for the minimization of production factors and output variables.Results: Data inputs include the number of groups of physicians (general practitioners, specialists, doctors intern in teaching hospitals, physician residents in teaching hospitals), the number of nurses (nurses, nurse aid, nurse), the number of staff and beds and the output includes the number of surgeries, number of ambulatory patients, the percentage of occupied beds, average bed day stay patient is hospitalized. Then calculate the technical efficiency of hospitals and hospital efficiency (efficiency coefficient E=1) and the inefficient (the unit) is obtained.Discussion: The most important factors for technical efficiency in hospitals have been incorrect use of beds patient-day in sufficiency and bed-days occupied. Finally in Hamadan average surplus factor (input), respectively: 3 physician, 9 nurses, 8 other personnel and 3 active beds and there should be surplus production factors surplus to be removed to hospitals in the province average to reach the desired level of technical efficiency. The findings in this study shows the highest ratio of technical efficiency in Besat, Beheshti, Farshchian, Imam Hussein Malayer, ValiAsr Razan, Ali Moradian and Heydari Nahavand, Ghaem and Amiralmomenin Asadabad hospitals in comparison with other hospitals is.
Lineament Tectonics and Mineralizatin in Tarom Area, North Iran  [PDF]
Mehran Arian, Reza Nouri
Open Journal of Geology (OJG) , 2015, DOI: 10.4236/ojg.2015.53011
Abstract: The study area that is part of Tarom volcano-plutonic zone which host many hydrothermal base metal deposits located in Zanjan, NW Iran. Understanding the tectonic events that can cause mineralization and hydrothermal alteration are significant factor in assessing the exploration potential of different structures. In this research, hydrothermal alteration such as Iron oxide, argillic, phyllic, and propylitic zones were determined by Spectral Angle Method (SAM) and also lineaments identified by high pass filters and hill-shade DEM techniques on Advanced Space borne Thermal Emission and Reflection Radiometer (ASTER) data. Field studies revealed most alteration and mineralization occurred in NE-SW fractures and control mineralization.
Unusual Presentation of A Massive Pulmonary Embolism
Morteza Safi,Reza Tajik Rostami,Maryam Taherkhani
Journal of Tehran University Heart Center , 2011,
Abstract: A pulmonary embolus clogs the artery that provides blood supply to a part of the lung. The embolus not only prevents the exchange of oxygen and carbon dioxide but also decreases blood supply to the lung tissue itself, potentially causing the tissue to die (infarct). A 52-year-old man presented with syncope and anxiety. He had sinus tachycardia and dilated right ventricle with trabeculations. A differential diagnosis of arrhythmogenic right ventricular dysplasia and pulmonary embolism prompted CT angiography, which revealed a bilateral massive pulmonary embolism. The patient was treated successfully with thrombolytic drugs.
Geodynamics of Dikes in North of Saveh  [PDF]
Mohammad-Hasan Bazoobandi, Mohammad-Ali Arian, Mohammad-Hashem Emami, Gholam-Reza Tajbakhsh, Abdollah Yazdi
Open Journal of Ecology (OJE) , 2015, DOI: 10.4236/oje.2015.59037
Abstract: Dikes can be divided into sheeted, feeder, cone and swarm types based on the origin and the formation. A group of dikes that are formed in dense in a relatively broad zone influenced by a particular tectonic regime are referred to as swarm dikes. Swarm dikes have numerous applications such as locating mantle plume centers, determining areas of longstanding tensions and detection of deformation networks. The purpose of this article is classified swarm dikes of “North of Saveh” based on previous studies. In one study, swarm dikes are classified based on their initial geometry into five types of I, II, III, IV and V. According to this classification, our study has been shown that the dikes in north of Saveh are of type IV. In another study, the swarm dikes are classified into three types: parallel, large radial and small radial. According to the classification, our study has been shown that the dikes of North Saveh are parallel that have arisen by tensions caused by the collision of the Arabian plate and the Central Iran plate. In addition to original tensions in the region, local faults have been effective on the arrangement and the establishment of dikes.
Physiographic-Tectonic Zoning of Iran’s Sedimentary Basins  [PDF]
Mehran Arian
Open Journal of Geology (OJG) , 2013, DOI: 10.4236/ojg.2013.33020
Abstract:

Base on geological history evaluation using regional stratigraphy, sedimentary environments, magmatic activities, metamorphism and structural trend in Iran, physiographic-tectonic zoning map of Iran’s sedimentary basins has prepared. This map has prepared to point out the basement tectonics role in Iran. It contains twenty-four different provinces. Iran has composed from different plates: Arabian plate in south and west, Cimmerian manipulated in north and east, Eurasian plate in northeast margin. Cimmerian manipulated at least can be divided to the smaller part, East-Central Iran and North-Central Iran microcontinents. There are evidences for thick-skinned tectonics in the border zones of these plates and microcontinents, especially in Sanandaj-Sirjan overthrust belts that it formed by crustal stacking wedges. Also, Neoproterozoic-Phanerozoic Tectonic column in the Arabian, Cimmerian and Eurasian plates under Iran Country area have introduced.

Gender Related Differences in Antinociceptive Properties of Morphine after Gonadectomy in Male and Female Rats
Manzumeh-Shamsi Meimandi,Gholam Reza-Sepehri,Arian Esmaili
International Journal of Pharmacology , 2005,
Abstract: In this study gonadectomy was undertaken to evaluate gender-differences in antinociceptive effects of morphine. Ninety NMRI adult male and female rats in three groups of intact, sham-operated and gonadectomized were tested by Hot-plate assay. The latency time was recorded three times before and every 15 min until 2 h after morphine (7 and 12 mg kg < SUP>-1 < /SUP> s.c.). Same procedure was repeated in days 7, 21 and 35 after surgical operation. The data were expressed as latency time and maximum possible effect (%MPE).There was not any significant gender differences in base line latency time in intact and also in sham operated rats at days 7, 21 and 35, while in gonadectomized rats the base line latency time of male were decreased significantly at 21st and 35th day compared to female rats. The analgesic response to 12 mg kg < SUP>-1 < /SUP> s.c. of morphine was significantly higher in intact male rats while in day 35th after gonadectomy it was decreased significantly compared to females. By 7 mg kg < SUP>-1 < /SUP> s.c. of morphine %MPE of males was decreased only in 35th day. In sham operated and all other groups no gender differences was observed in %MPE. So gonadectomy decreased pain threshold sensation especially in male rats. The analgesic response to morphine decreased in both sexes but in male rats it was more pronounced, especially by higher doses of morphine (12 mg kg < SUP>-1 < /SUP> s.c.). This phenomenon may be described by different density and affinity of opioid receptors which their function depends on morphine dosage and/or sex hormone level.
Petrogenesis of Volcanic Rocks in Alasht, Mazandaran, Iran  [PDF]
Mohammad Ali Arian, Mohammad Hasan Bazoobandi, Reza Elmi
Open Journal of Geology (OJG) , 2016, DOI: 10.4236/ojg.2016.63013
Abstract: Area studied in this paper is located in the northwest of city of Alasht. The most important varieties of studied rocks are volcanic and semi-volcanic rocks of basic nature. These rocks, which form a distinguishable solid mass on 1:100,000 geological map, belong to Cretaceous period. According to results of petrographic study, rocks of this area include olivine basalt, dolerite, gabbro and microgabbro, and all have almost similar chemical compositions. According to chemistry-basednaming process carried out through TAS method, these rocks are entirely basalt and basic and are all products of Sub-alkaline-Tholeiitic magma. According to Harker diagrams, a magmatic differentiation can be observed in all volcanic rocks; furthermore, basaltic magma erupted in this area has undergone an alteration and possibly a crustal contamination. The spider diagrams plotted in this paper show that basic rocks of Alasht area (basalts, andesite basalts, dolerites, gabbros and microgabbros) are all mostly similar to ocean island basalts (OIB). Once field study, sampling andmicroscopic study stages were complete, ten samples were selected for chemical analysis andwere analyzed by XRF method.
A twenty-year survey of pathologic reports of two common types of chronic periapical lesions in Shiraz Dental School
Laya Safi,Alireza Adl,Mohammad Reza Azar,Raheleh Akbary
Journal of Dental Research, Dental Clinics, Dental Prospects , 2008,
Abstract: Background and aims. Accurate differential diagnosis between radicular cysts and periapical granulomas cannot be made from radiographs alone. Histological prevalence studies, therefore, assume special importance and may aid the clinician in making judgments regarding therapy. The incidence of radicular cysts has ranged with wide discrepancies in data. The purpose of this study was to evaluate recorded pathologic reports of two common types of chronic periapical lesion in Shiraz Dental School. Materiasl and methods. In this study, biopsy reports of 227 specimens of chronic periapical lesions were reviewed. The following information was extracted from each report: patient’s gender, age, tooth associated with the lesion and the pathological diagnosis. Probable significant differences in the occurrence of lesions between different ages and genders were analyzed using chi-square test. Results. 15.9% of the lesions were granulomas, and 84.1% were cysts. A slight difference in the occurrence of the lesions was found between males and females with no statistical significance (P > 0.005). The highest incidence of both lesions was in the third decade of life. No significant differences were found in age distribution of the lesions. The most common location for two lesions was the maxillary anterior teeth. Conclusion. Histological differentiation between cysts and granulomas is not always accurate and serial sectioning of excisional biopsies is more valuable than randomized sectioning of curetted biopsies.
Comparison of Fissure Sealant Microleakage after Depositing on Tooth in Isolated and non Isolated State (in Vitro)
Heidari Ali Reza,Safi Yaser,Ansari Hossein,Khosravi Amir Bahram
Zahedan Journal of Research in Medical Sciences , 2009,
Abstract: Background: Many clinical studies have shown the efficacy of pit and fissure sealants in reduction of caries. However saliva contamination during the treatment is the cause of fissure sealant failure. The purpose of this study was to evaluate the microleakage of fissure sealant applied under isolated and non-isolated conditions. Materials and methods: In this experimental seventy six sound human premolar teeth collected from Dentistry centers of Zahedan during 2007 were investigated in two groups: isolated group and contaminated with saliva. A fissure was prepared on buccal surface of the teeth by a round bur. Fissure sealant was applied to all teeth, then test group teeth were contaminated by saliva for 5 seconds after deposing fissure sealant on the fissure. The sealed tooth was thermocycled (5-55 degrees, 2000 cycles) and then immersed in 0.5% basic fuchsin solution for 24h. The teeth were sectioned in buccal lingual dimention and the amount of microleakage was assigned by a sterio microscope and the results were evaluated by Chi-square and Mann – Whitny analysis and P<0.05 was considered significant. Results: Significant difference was noticed in microleakage of fissure sealant in isolated and non isolated state (P=0.001). The difference in microleakage of dye in the space between enamel and sealant was significant between two groups (P=0.001). Even in some cases (31.59 %) sealant was separated from the tooth in non- isolated teeth.Discussion: According to the results of this study it is recommended to do the teeth sealant therapy in a completely isolated situation and repeat sealant therapy if any contamination occurred after deposing the sealant.
Prevention of Atrioventricular Block During Radiofrequency Ablation by Pace Mapping of Koch’s Triangle
Mohammad Hasan Namazi,Hassan Kamalzadeh,Morteza Safi,Reza Karbasi Afshar
Journal of Tehran University Heart Center , 2008,
Abstract: Background: Complete atrioventricular block (AV block) is a serious complication of slow pathway ablation therapy in the treatment of atrioventricular nodal re-entrant tachycardia (AVNRT). The present study was aimed at determining whether the electroanatomical pace mapping of Koch’s triangle could significantly improve the safety, efficiency, and efficacy of selective slow pathway ablation in the treatment of AVNRT. Methods: A total number of 124 patients were selected to be studied consecutively for radiofrequency (RF) ablation therapy in the treatment of AVNRT. The subjects were divided into two groups: one, designated Group 1, to serve as the control group, and the other, designated Group 2, to serve as the study group. Conventional fluoroscopic slow pathway ablation was performed on the Group 1 subjects (n=66), with the Group 2 subjects receiving slow pathway ablation therapy guided by pace mapping of Koch’s triangle. The slow pathway ablation in Group 2 (n=58) was performed with regard to the pace mapping data obtained on the basis of the St-H interval in the anteroseptal (AS), midseptal (MS), and posteroseptal (PS) regions of Koch’s triangle. The anterograde fast pathway (AFP) location was determined based on the shortest St-H interval obtained by stimulating the anteroseptal (AS), midseptal (MS), and posteroseptal (PS) aspects of Koch’s triangle. Results: In the Group 2 subjects, AFP location was AS in 50 (86.2%) of the cases, MS in 7 (12%) of the cases, and PS in 1 case (1.7%). One patient with posteroseptal AFP was administered retrograde fast pathway ablation therapy. One patient in the control group (Group 1), representing 1.5% of the group, developed persistent AV block in the course of the treatment, but none of the subjects in the study group (Group 2) developed any complications. Conclusion: It was concluded that an atypical fast pathway location is conducive to the development of atrioventricular block in the ablation therapy in AVNRT, with pace mapping of Koch’s triangle having the capacity to eliminate the risk of any such complication developing. It follows that it helps to identify the AFP location before ablation therapy is administered in AVNRT, thereby improving the safety of the treatment.
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