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مرکز اطلاعات علمی SID1
مرکز اطلاعات علمی SID
اسکوپوس
مرکز اطلاعات علمی SID
ریسرچگیت
strs
Issue Info: 
  • Year: 

    2019
  • Volume: 

    43
  • Issue: 

    2
  • Pages: 

    148-154
Measures: 
  • Citations: 

    910
  • Views: 

    80
  • Downloads: 

    42
Abstract: 

Introduction: This study aimed to identify the level of knowledge of dental authors regarding the use of MeSH indexing tools in research by comparing the keywords of the articles published in Iranian dental journals indexed in PubMed. Materials and Methods: In this descriptive and applied study, a total of 1, 091 keywords in 239 research articles published in 20 issues of 5 Iranian dental Latin journals indexed in PubMed in 2016 were matched with MeSH descriptors. The keywords were classified according to the degree of compliance in three groups of exact compliance, relative compliance, and noncompliance. Results: According to the results, 483 (44. 3%), 153 (14%), and 455 (41. 7%) keywords had exact compliance, relative compliance, and non-compliance with MeSH descriptors, respectively. The three keywords, namely Cone-Beam Computed Tomography, Scanning Electron Microscopy, and Mineral Trioxide Aggregate, were among the top most frequent keywords with exact compliance, relative compliance, and noncompliance with MeSH descriptors, respectively. Conclusion: The articles in all the reviewed journals, with the exception of the Journal of Dentistry of TEHRAN University of Medical Sciences, were prone to the risk of nonretrieval and anonymity due to the inefficiency of researchers in using MeSH for keyword selection.

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Author(s): 

معصومی رسول

Issue Info: 
  • Year: 

    1398
  • Volume: 

    19
  • Issue: 

    82
  • Pages: 

    256-258
Measures: 
  • Citations: 

    0
  • Views: 

    124
  • Downloads: 

    67
Abstract: 

مقاله ای تحت عنوان "جایگاه مطالعات آموزش پزشکی پژوهشگران ایرانی در بین تحقیقات آموزشی نمایه شده در پایگاه علمی وب آو ساینس" در مجله ایرانی آموزش در علوم پزشکی/ تیر 1398؛ 19(12): 114 تا 123 منتشر شده است. ضمن تشکر از زحمات نویسندگان محترم، ضروری دانستم که به توضیح چند نکته بپردازم. وقتی کلیدواژه ای مخصوصاً یک کلیدواژه عام مثل Education را در Topic وب آو ساینس جستجو می کنیم، به طور هم ‍ زمان فیلدهای Title، Abstract، Author Keywords و Keywords Plus را جستجو می کند(1). بنابراین اکثر رکوردهای بازیابی شده، نامرتبط خواهند بود. برای مثال به مقالات زیر توجه کنید: • Facial injuries in Iranian veterans during the Iraq-Iran war (1980-88): differences from recent conflicts • Factors affecting bone mineral density in postmenopausal women • Factors Affecting Gender Differences in the Association between Health-Related Quality of Life and Metabolic Syndrome Components: TEHRAN Lipid and Glucose Study • Prevalence and risk factors for pica during pregnancy in TEHRAN, Iran مقالات فوق به این دلیل بازیابی شده است که در چیکده آنها کلمه Education آمده است، در حالی که هیچ ربطی به Education ندارند. از آنجا که سطح Education یکی از متغیرهای زمینه ای اکثر پژوهش ها است، بنابراین چنین پژوهش هایی نیز بازیابی می شوند که کاملاً نامرتبط هستند. به همین دلیل است که از بین نویسندگان پر تولید، حتی یک نفر هم پژوهشگر شناخته شده در آموزش پزشکی نیست و در مورد مجلات نیز هیچ مجله مرتبط با آموزش پزشکی در لیست 10 مجله برتر نیست. این که چطور با جستجوی کلمه Education، مطالعات Medical Education بازیابی می شوند، دلیل قانع کننده ای ذکر نشده است. نویسندگان محترم، ظاهراً تفاوتی بین Education و Medical Education قائل نشده اند. در سراسر مقدمه مقاله، از آموزش پزشکی و پژوهش های مرتبط با آن سخن به میان آمده ولی وقتی به اهداف مطالعه می رسیم، دیگر حرفی از آموزش پزشکی زده نشده است و حوزه کلی آموزش مد نظر نویسندگان است. روش ها و نتایج کاملاً درباره آموزش است ولی مجدداً وقتی به بحث و نتیجه گیری می رسیم، بلافاصله ادبیات به آموزش پزشکی تغییر پیدا می کند. نکته دیگر عدم ذکر نمایه نامه های مورد جستجو است. Web of Science Core Collection شامل 6 نمایه نامه استنادی(2) زیر است: • Science Citation Index Expanded • Social Sciences Citation Index • Arts & Humanities Citation Index • Emerging Sources Citation Index • Book Citation Index • Conference Proceedings Citation Index دانشگاه ها بر اساس نیازشان، تعدادی از آنها را مشترک می شوند. بنابراین در هنگام گزارش جستجو باید اشاره کنیم که کدام نمایه نامه ها را مورد جستجو قرار دادیم. در غیر این صورت جستجوی صورت گرفته، تکرارپذیر نخواهد بود. دلیل اعمال محدودیت زمانی هم مشخص نشده است. چرا از سال 1990؟ چرا قبل تر یا چرا بعدتر نه؟ در علم سنجی انتظار می رود فقط به تحلیل های ایجاد شده توسط پایگاه استنادی اکتفا نکنیم. به غیر از شکل شماره 1 که توسط نرم افزار Vosviewer ترسیم شده است، بقیه داده های نتایج از قسمت Analyze Results وب آو ساینس که به صورت اتوماتیک ایجاد می شوند، برداشته شده است (جداول شماره 2، 3، 4 و 5). امید است این توضیحات در مطالعات بعدی مورد توجه پژوهشگران محترم قرار بگیرد.

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Author(s): 

MOJTAHEDI HAMID REZA

Issue Info: 
  • Year: 

    2006
  • Volume: 

    12
  • Issue: 

    -
  • Pages: 

    0-0
Measures: 
  • Citations: 

    315
  • Views: 

    7123
  • Downloads: 

    9195
Keywords: 
Abstract: 

Yearly Impact:

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Download 9195 Citation 315 Refrence 0
گارگاه ها آموزشی
Author(s): 

Mollahmohammad Alian Mehrizi Zahra | Samani Maryam

Issue Info: 
  • Year: 

    2019
  • Volume: 

    11
  • Issue: 

    3
  • Pages: 

    174-183
Measures: 
  • Citations: 

    0
  • Views: 

    12884
  • Downloads: 

    8941
Abstract: 

management is the lack or non-use of appropriate information systems. The overall aim of this study is to reduce the impact of road accidents in the west, southwest, and south routes of TEHRAN Province, Iran, by designing Management Database responsible for road accidents. METHODS: This was an applied study performed using the descriptive-analytical method in which the data entry and analysis were conducted in the Geographic Information System (GIS) environment in line with the objectives. Then, according to different requirements of the various users, an appropriate analysis was performed on the layers and the software spatial analysis was applied in line with the main objective of the study. In the next step, the desired outputs were extracted from the system and the main output, i. e. the comprehensive database of spatial data required to manage road accidents, was provided to the management levels of various organizations for planning. FINDINGS: In this study, the accident-prone areas in the studied routes were identified using the kernel density estimation (KDE) method. CONCLUSION: Performing various analyses on geographical and descriptive information and providing appropriate outputs and also sharing them can play an effective role in reducing injuries caused by road accidents.

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Issue Info: 
  • Year: 

    2018
  • Volume: 

    7
  • Issue: 

    6
  • Pages: 

    1-7
Measures: 
  • Citations: 

    942
  • Views: 

    1215
  • Downloads: 

    1158
Abstract: 

Introduction Depression is a very common disease of the present age. It is important to study the causes and factors associated with depression. The purpose of this study was to determine the correlation between perfectionism and depression of students by mediation of rumination. Methods The research method was descriptive-correlational. 270 students from Dezfoul Islamic Azad University were selected by cluster sampling. In order to collect data، "TEHRAN Multidimensional Perfectionism Scale” ، the “ Rumination-Reflection Scale” ، and the “ Beck Depression Inventory Second Edition” were used. Validity and reliability have been confirmed in previous studies. The model was evaluated using a structural model using the SPSS. 18 and IMOS 20. Results In structural equation model، relationships between these variables were of acceptable fit. Correlation between perfectionism and depression (β = 0. 44، P = 0. 01)، between rumination and depression (β = 0. 44، P = 0. 01)، and between perfectionism and rumination correlation of perfectionism with rumination (β = 0. 56، P = 0. 01). Conclusions Perfectionism correlates with depression either directly or indirectly through rumination. Therefore، holding workshops on improving perfectionism and managing rumination in students is recommended.

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Author(s): 

CHALOOK GHOLAMREZA

Issue Info: 
  • Year: 

    2011
  • Volume: 

    5
  • Issue: 

    4
  • Pages: 

    650-676
Measures: 
  • Citations: 

    0
  • Views: 

    1179
  • Downloads: 

    381
Abstract: 

Background and Objective: As the security is one of the most fundamental needs of societies, particularly when a society is tolerating some undesirable consequences of some crises. The present study aims at analyzing the current security status in TEHRAN while facing earthquake crisis. It also tries to offer officials in charge of security in TEHRAN some reliable strategies, to be used in the time of earthquake occurrence.Method: The present study was of applied type conducted in management field which was performed in 5 stages. The stages were as follows: 1) Reviewing theoretical tenets of the topic using through library studies; 2) Reviewing the current status through using all existing documents available in IRI Police (IRIP); 3) Reviewing officials’ perceptions through conducting qualitative studies and through using in-depth interview and expert panel; 4) Analyzing and wrapping up stages one to three in all the three previous stages during and after earthquake crisis through using SWOT technique; 5) Offering strategies proportionate with tools of collecting data in the first and second stage of note taking, whereas interviews and questioners are employed for third stage.Findings: The most important strategies resulted from the findings of the research based on priority were: establishment of a spare structure, making places and facilities resistant, traffic control, coordination with the Armed Forces General HQs, Basij and other bodies involved, maneuver, assistance to IRIP personnel and their families.Conclusion: Quantitative statistics resulted from tables of questionnaire of internal and external factors in the graph of matrix for circumstances’ assessment and strategic measure indicates that during prevention, prediction and preparation, IRIP should be in aggressive position, because some good opportunities were provided. However, IRIP should take defense position while encountering casualties, assisting people, rescuing the injured; because there are also some weak points and threats. Strong points should be used during reconstruction period to neutralize threats; for this reason competitive approach were recommended.

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strs
Issue Info: 
  • Year: 

    2011
  • Volume: 

    23
  • Issue: 

    3
  • Pages: 

    43-49
Measures: 
  • Citations: 

    0
  • Views: 

    14292
  • Downloads: 

    8539
Abstract: 

Purpose: To study the age and gender specific history of ocular trauma in the population of TEHRANMethods: Using a stratified cluster sampling approach, 6, 497 residents of TEHRAN were selected. Participants were transferred to an eye clinic to have complete eye examinations. During the interview, participants were asked about any history of ocular trauma, and any treatment or hospitalization due to such trauma. Data are presented in detail according to age and gender, along with their 95% confidence intervals (CI).Results: A total of 4, 565 people participated in the study (response rate: 70.3%); their mean age was 30.05±18.78 years, and 58.2% were female. A history of ocular trauma was recorded in 13.3% (95% CI: 12.0-14.5%); the rate was significantly higher in men (17.1% vs.9.2%, P<0.001). The trauma was blunt, sharp or chemical in 6.1% (95% CI: 5.2-7.1%), 4.1% (95% CI: 3.5-4.7%), and 1.5% (95% CI: 1.1-1.9%), respectively. A history of medical treatment and hospitalization due to eye trauma was stated by 2.2% and 2.4% of the participants.Conclusion: Our results indicated that ocular trauma was more frequent among men and younger age groups. The rates of ocular trauma are neither too high nor very low compared to reports from other countries, yet it is important to consider educational programs to prevent ocular injury, specially occupational eye trauma.

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Issue Info: 
  • Year: 

    2010
  • Volume: 

    17
  • Issue: 

    4
  • Pages: 

    0-0
Measures: 
  • Citations: 

    0
  • Views: 

    19334
  • Downloads: 

    9195
Abstract: 

Introduction & Objective: Esophageal cancer is one of the most fetal and poor-prognosis cancers and is very common in Iran. The main treatment for this cancer is surgery which may be performed with either trans-thoracic (TTE) or trans-hiatal esophagectomy (THE). Each of these methods has specific morbidities and mortalities. So, the choice between their has been controversial. In this study, the outcomes of these two approaches were compared for the case of Iranian patients.Materials & Methods: In this descriptive cross-sectional survey, we studied 100 patients with esophageal cancer who had undergone operation with either TTE or THE in Shohada-E-Tajrish Hospital, TEHRAN, during 2000-2008. Patients in the two groups were matched for age, sex, duration of dysphagia, surgical grading, pathologic type, tumor location, and background diseases. Analysis was performed by Mann-Whitney, Independent-Sample T, Chi-Square, and Fisher tests.Results: The mean age of the patients was 61 years. Mortality and morbidity rates were the same across the groups (P > 0.05); except for anastomosis leak that was more frequent in the trans-hiatal approach (six versus three cases) with odds ratio of 1.4 (95% Confidence Interval, 1.3-1.6), and also the duration of operation was longer in the trans-thoracic surgeries with odds ratio of 1.3 (95% Confidence Interval, 1.2-1.4) for a duration of longer than five hours (P < 0.05).Conclusions: According to these findings, trans-hiatal and trans-thoracic approaches for esophagectomy have not statistically significant difference in the outcomes. So, each procedure may be chosen, considering physician's opinion and patient's condition.

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Issue Info: 
  • Year: 

    2008
  • Volume: 

    34
  • Issue: 

    2
  • Pages: 

    1-15
Measures: 
  • Citations: 

    0
  • Views: 

    4744
  • Downloads: 

    1295
Abstract: 

City of TEHRAN is founded on Quaternary alluvium. During the last years, several researchers have studied characteristics of this alluvium. Amongst them, Rieben classification has been the most widely used classification rather than others. Rieben (1955) divided TEHRAN alluvium to four categories, A, B, C and D which are ranged from old to young, respectively, in terms of geologic age. In Rieben study, age and general characteristics of alluviums are considered rather than geotechnical and engineering applications. Study of alluvium based on age can give useful information about history of basin sedimentation and relevant change's trends and even it may help geotechnical engineers for preparing study plan and making sound conclusions over undertaken studies. For doing so, it is required to evaluate alluvium classifications with respect to sedimentation types. In order to evaluate Rieben classification capabilities for geotechnical studies of TEHRAN alluvium, following subjects are studied in this research: (A) Description of Rieben and other classifications that are presented based on age and specification of geology. (B) Discussing advantages and disadvantages of existing classifications in geotechnical studies. (C) Analysis of TEHRAN geological maps with consideration of alluvium formation and making comparison of these maps with some boreholes, test pits and site visit results. (D) Discussing geological factors affecting on geotechnical specifications of TEHRAN alluvium.

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Issue Info: 
  • Year: 

    2013
  • Volume: 

    6
  • Issue: 

    1
  • Pages: 

    23-32
Measures: 
  • Citations: 

    0
  • Views: 

    616
  • Downloads: 

    182
Abstract: 

Background and Objectives: Microorganisms are the agents that can cause disruption in the biochemical and physiological reactions through mechanisms such as infection, allergy or toxic properties in the case of entering human body and if the body’s immune system be unable to destroy and eliminate biological agents, illness and even death will occur. This study evaluates air pollution (aerosol and bioaerosol) in different parts of a hospital in TEHRAN.Materials and Methods: We assessed and evaluated bioaerosols by applying 0800 NIOSH method using Bacterial sampler and specific cultures for bacteria and fungi separately in ICU (intensive care unit), Pathology laboratory, Operating room, Recovery, and CSR (Central Service Room) of a hospital.Results: The assessment showed that the average density of bacteria in the hospital studied was in the range of 1226.88 - 294.47 CFU/m3; the highest density was observed in the CSR and the lowest density measured was in the operating room. The bacteria identified included gram-positive bacillus (50.6%), Staphylococcus epidermis (20.29%), Staphylococcus Saprophyticus (2.6%), Staphylococcus aureus (7.03%), other Staphylococcus (5.9%) and Micrococcus (13.43%). Moreover, it was found that the average density of fungi was in the range of 0-188.45 CFU/m3; the maximum density in ICU and the minimum density in operating room and recovery room. The fungi identified included Aspergillus flavus (31.65%), Aspergillus fomigatus (25.17%), Aspergillus niger (15.82%), and penicilliom (27.33%).Conclusion: Comparison of bacteria density in different parts of the hospital with the recommended limits of ACGIH (500 CFU/m3) showed that density exceeded the limits in all units except in operating room whereas, density of fungi was less than the recommended limits of ACGIH (100 CFU/m3) in all units of hospital.

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