Showing 7 results for Dashti
F Nabatchian, N Einollahi, N Dashti, Af Sarrafnejad, Ghr Vatani,
Volume 4, Issue 3 (20 2011)
Abstract
Background and Aim: The balance between ROS generation and antioxidant activity is critical to the pathogenesis of oxidative stress related disorders. In this study the prooxidant - antioxidant balance and its correlation with lipid profile and uric acid was determined to evaluate the PAB as a prognostic factor for CAD.
Materials and Methods: Seventy - two patients and sixty eight healthy volunteers were enrolled in this study. The values of PAB were determined by using standard solutions and ELISA method.
Triglyceride, total cholesterol, LDL- cholesterol, HDL - cholesterol and uric acid were measured by enzymatic method.
Results: The PAB values of CAD patients and control group were 70.01±3.36 (HK unit) and 66.40 ± 2.84 (HK unit) respectively. There was no significant difference between PAB values among the two groups (P= 0.41). There was no significant difference between uric acid levels among the two groups (P= 0.46). There was a significant correlation between the uric acid values among patients and healthy volunteers and PAB values (P <0.01). There was a significant correlation between the TG, values among patients and healthy volunteers and PAB values (P<0.05).
Conclusion: This study showed oxidative stress could be used as a significant risk predictor in the coronary artery disease patient
Nasrin Dashti, Nahid Einollahi, Mitra Zare Bavani, Sakineh Abbasi,
Volume 6, Issue 2 (14 2012)
Abstract
Background and Aim: Internal Evaluation is a process of providing evaluative-descriptive information based on the value and significance of educational objectives, operations and results to direct decisions, responses, information and research processes.
Materials and Methods: In this research, studying the opinions of faculty members, students, and graduates, the educational system of Medical Laboratory Sciences Department at Tehran University of Medical Sciences (TUMS) was evaluated in the year 2010. The aim the study was to remodel and adjust the educational system with the society's needs and to promote the educational quality. The employed method was a cross-sectional, descriptive one and consisted of 10 procedural steps in eight sections dealing with the evaluated factors such as faculty members and students, and the satisfaction expressed by students.
Results: The results of the study showed that the average of the eight investigated sections was 70.6% for the Department of Medical Laboratory Sciences, which can be interpreted as desirable.
Conclusion: Internal evaluation can be considered as one of the best methods of improving the quality of education in the faculty of Allied Health Sciences School
Mitra Zarebavani, Nasrin Dashti, Nahid Einollahi, Arezoo Jamali,
Volume 6, Issue 4 (15 2012)
Abstract
Background and Aim: Human Giardisis infection is caused by the flagellate protozoa. Giardia lamblia, which lives in the small intestine, causing damage and may also cause gastrointestinal symptoms. This parasitic disease has a worldwide distribution and prevalence varies from 5% to 30%. The role of both humeral and cellular immune response in the host defense against parasites has proven. Since an immune response is directly affected by cytokine, study of cytokines changes in patients with giardiosis is of particular importance.
Materials and Methods: In this study the serum levels of IL-2 - 4 - 6 to 17 and 23 in patients and healthy subjects were measured and compared. Fasting blood samples were taken from the volunteers, ELISA was performed to measure cytokines.
Results: In this study, the amount of IL-2 and IL-6 in infected patients was significantly more than the controls, but IL-4 levels were significantly lower in infected individuals (P=0.0001). Also for the first time in people with giardiasis IL-17 and IL-23 was measured and there was a significant aifference in these cytokines between the infected patients healthy controls(respectively P=0.044 and P=0.03)
Conclusion: Host defense response against parasitic infections, is directly and affected by cytokines. Increased interleukin 2, 6, 17 and 23 in patients with Giardiosis was probably caused by immune response and local intestinal inflammation.
Sakineh Abbasi, Nahid Einollahi, Mitra Gharib, Fariba Nabatchian, Nasrin Dashti, Mitra Zarebavani,
Volume 6, Issue 5 (13 2013)
Abstract
Background and Aim: Achievement-based evaluation is an important part of the educational planning process, in which learners are screened besides, it helps teachers in their self-evaluation. The purpose of present study is to survey the methods through which laboratory sciences students were evaluated by their professors at Tehran University of Medical Sciences(TUMS) in the academic year 2009-2010.
Materials and Methods: In this cross-sectional study, the population consisted of the faculty members who teach laboratory sciences courses. Data collection instrument was a researcher-made questionnaire. The collected data were analyzed to describe all evaluation methods using tables and necessary distribution frequencies. Then, the results were compared with those of Medical Planning Council resolutions.
Results: The results show that mid-term exams were used for the evaluation of students in 35% of all theoretical and practical courses. Besides, of the evaluation methods used, multiple-choice questions occupied the first rank(70%) among the methods normally employed.
Conclusion: According to the results, routine evaluation of undergraduate students of laboratory sciences at the Paramedical Faculty of Tehran University of Medical sciences not only conformed to the ratifications of the Supreme Council of Medical Planning, but also was done more extensively and with a higher degree of consistency in the academic year 2009-2010.
Delaram Dargahi, Mitra Zare Bavani, Nahid Einollahi, Nasrin Dashti, Mostafa Rezaeian, Sakineh Abbasi,
Volume 10, Issue 5 (1-2017)
Abstract
Background and Aim: Giardiasis is the most common pathogenic gastrointestinal parasite worldwide and transmitted by ingesting parasite cyst, through water and food and person-to-person contact. Therefore in food handlers and child care workers it is of high importance. In this study we surveyed the job of individuals with giardiasis.
Materials and Methods: This study was a pilot descriptive-analytic study. Hundred and nine stool samples were collected from individuals referred to medical centers affiliated to Tehran University of Medical Sciences for health certificate.
Samples were examined with wet mount smear and formol-ether concentration methods. Also a questionnaire was given to each individual.
Results: Sixty nine samples were infected with Giardia lamblia. among positive samples for Giardia lamblia 25 (36.23%) were related to food handlers and occupations which are most frequently associated with food, one (1.44%) nurse, one (1.44%) managing director of the nursery, two (2.89%) housekeepers and one servant (1.44%).
Conclusion: Person-to-person Giardia lamblia transmission is often associated with poor hygiene and sanitation, most commonly by food handlers.
Also, day- care workers have a higher risk of infecting children attending day-care centers. Therefore particular attention should be paid to health of this workers as well as three times stool examination.
Farzad Faraji Khiavi , Mohammad Qolipour, Zahra Dashtinejad , Iman Mirr,
Volume 11, Issue 5 (1-2018)
Abstract
Background and Aim: Assessing service quality is one of the basic requirements to develop outpatient service. There is no valid and reliable tool to measure quality of outpatient service, therefore this study was performed to determine dimensions and items for assessing service quality of outpatient in Iran.
Materials and Methods: To determine dimensions and items of the outpatient service quality, a cross-sectional study was conducted with participating of 550 outpatients referred to Ahvaz hospitals in year 2015. To determine content validity, the Delphi technique (3 rounds) with participating of 8 quality experts was used. Construct validity of the tool was assessed through exploratory and confirmatory factor analysis. Reliability was assessed using Cronbach's alpha coefficient. Data were analyzed by Excel, Spss, and Lisrel softwares.
Results: The content validity of tool with CVI=0.94 was confirmed. According to exploratory factor analysis, the hospital outpatient service quality tool included 36 items and 11 dimensions (choosing the service provider, communication and interaction, having authority, continuity of service, quality of facilities and basic amenities, respect, immediate and timely attention, safety, prevention, access and reliability). Construct validity of the tool was confirmed based on the goodness of fit quantities of model (RMSEA=0.007, CFI= 0.99, GFI=0.95).
Conclusion: The results of study showed that the outpatient SERVQUAL tool with 36 items and 11 dimensions was a valid and reliable tool to measure quality of outpatient service in Iranian hospitals.
Seyed Mohammad Sadegh Dashti, Amid Khatibi Bardsiri, Mehdi Jafari Shahbazzadeh,
Volume 18, Issue 1 (3-2024)
Abstract
Background and Aim: Medical reports and electronic health records are critically important for diagnosis, treatment, patient protection, and medical research. Correcting spelling errors in medical texts is essential to ensure accurate interpretation of information. This research was conducted to automatically correct spelling mistakes in Persian medical texts using neural networks.
Material and Methods: In this study, which was conducted in 2023, a computational model based on artificial intelligence neural networks and dual embedding techniques was developed using Python in a Windows environment. The dual embedding model was fine-tuned for correcting spelling errors in Persian sonography texts. The proposed model employs various techniques for automatic error detection, including dictionary lookup approach and contextual similarity coefficients. Furthermore, features specific to text processing, such as Edit-Distance, along with similarity coefficients, were utilized to automatically select the most appropriate substitute for a misspelled word. The training and testing data for the current model were sourced from a collection of sonography texts from the Imam Khomeini Hospital’s sonography clinic in Tehran.
Results: The proposed model which is based on artificial neural networks, leverages a novel dualembedding architecture to select the best candidate words for correcting both non-word and real-word errors. According to the evaluation results on Persian sonography text, the proposed model achieved an F-Measure accuracy of 90.5% in detecting real-word errors. Furthermore, it demonstrated an impressive 90% accuracy in automatically correcting these real-word errors. Additionally, the model exhibited a strong performance, achieving 90.8% accuracy in correcting non-word errors.
Conclusion: Based on the evaluation results, the proposed method is robust against various changes in word forms and can effectively manage a wide range of morphological and semantic errors, including replacements, transpositions, insertions, and deletions in medical texts. The integration of EditDistance with textual similarity coefficients extracted from the dual embedding model significantly enhanced the accuracy of spelling corrections in Persian sonography texts, ensuring greater validity of such documents. The authors believe that the proposed model represents a significant advancement in the detection and correction of spelling errors in Persian sonography texts.
