نتایج جستجو برای: reproducibility of measurements

تعداد نتایج: 21185698  

Journal: :journal of dentistry, tehran university of medical sciences 0
faramarz mojtahedzadeh assistant professor, dental research center, dentistry research institute and department of orthodontics, tehran university of medical sciences, tehran, iran. saeed alizadeh bahareh riazi ahmad reza shamshiri

despite the current use of radiography for quantifying sagittal skeletal measurements, it is an unsuitable way for screening or epidemiologic purposes. although not fully approved, anthropometric measurements have been suggested as a substitute, and considering displacement of soft tissues, could possibly lead to more consistent results. the purpose of this study was to evaluate the reliability...

متن کامل
Journal: :iranian journal of medical physics 0
m. ashkanmehr m.sc. in nuclear engineering dept., islamic azad university, tehran, iran. n. riyahi alam associate professor, physics and biomedical engineering, tehran university of medical sciences, tehran, iran. research center for science & technology in medicine, imam khomeini hospital, tehran. iran. m.a. oghabian associate professor, physics and biomedical engineering, tehran university of medical sciences, tehran, iran. research center for science & technology in medicine, imam khomeini hospital, tehran. iran. a. ghasemzadeh m. sc. in research center for science & technology in medicine, imam khomeini hospital, tehran. iran. m. bakhtiary m. sc. in research center for science & technology in medicine, imam khomeini hospital, tehran. iran. h. ghanaati associate professor, radiology dept., medical imaging center, imam khomeini hospital, tehran university of medical sciences , tehran, iran.

introduction:  image  distortion  is  one  of  the  major  problems  of  magnetic  resonance  imaging  (mri) for use in 3dmri, velocity mri, fmri and radiotherapy treatment planning (rttp). it is  widely known that the most obvious effect of the inhomogenity of the magnetic fields and the  nonlinearity  of  the  gradient  is  the  geometric  distortion  of  mr  tomograms.  in  this  study,  the...

متن کامل
Journal: :journal of dental research, dental clinics, dental prospects 0
ardeshir lafzi adileh shir mohammadi amir eskandari sohrab pourkhamneh

background and aims. the main purpose of this study was to assess intra- and inter-examiner reproducibility of probing depth measurements with a manual periodontal probe. materials and methods. in this study, 32 dental students in tabriz faculty of dentistry with normal periodontium were evaluated. each tooth of the upper right quadrants, except the third molars, was examined. probing depths we...

متن کامل
Journal: :journal of dentistry, tehran university of medical sciences 0
hr fattahi associate professor, shiraz orthodontic research center, orthodontic department, shiraz university of medical sciences, shiraz, iran. s torkan hr pakshir l darabi

the aim of this study was to investigate the reproducibility of natural head position (nhp) at different times of the day and to compare the reproducibility of the initial photographs with 6-month repeat photographs.the participants in this prospective study were seventy 14 to 50-year-old individuals. each participant was photographed with a digital camera twice, at three different times of the...

متن کامل
پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1389
مرضیه صادقی, مجتبی شمسی پور,

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...

15 صفحه اول
پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390
زهرا شجاعی فرد, افسانه صفوی, جواد تشخوریان, عبدالکریم عباسپور,

a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...

15 صفحه اول
2006
A Cooke M J R Healy P C Hindmarsh

Background-The pattern of growth of the uterus was examined by ultrasound examinations of 358 girls who attended a paediatric endocrine outpatient department but were shown not to have any endocrine defect. Method-The uterus was measured in length and width at the cervix and at the fundus (cm). Endometrial thickness was measured (mm). Scans were divided by Tanner breast stage and the dimensions...

متن کامل
Journal: Iranian Journal of Medical Physics 2005
A. Ghasemzadeh H. Ghanaati H. Hashemi M. Ashkanmehr M. Bakhtiary M. Pakravan M.A. Oghabian N. Riyahi Alam N. Shakeri

Introduction:  Image  distortion  is  one  of  the  major  problems  of  magnetic  resonance  imaging  (MRI) for use in 3DMRI, velocity MRI, FMRI and radiotherapy treatment planning (RTTP). It is  widely known that the most obvious effect of the inhomogenity of the magnetic fields and the  nonlinearity  of  the  gradient  is  the  Geometric  Distortion  of  MR  tomograms.  In  this  study,  the...

متن کامل
پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391
مریم بهرامی, محمد هادی قطعی,

in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...

Journal: :iranian journal of neurology 0
mohammad hossein harirchian professor, iranian center of neurological research, department of neurology, school of medicine, tehran university of medical sciences, tehran, iran. somayeh nasergivechi professor, iranian center of neurological research, department of neurology, school of medicine, tehran university of medical sciences, tehran, iran marzieh maddah immunology, allergy and asthma research institute, tehran university of medical sciences, tehran, iran alipasha meysamie associate professor, department of community and preventive medicine, school of medicine, tehran university of medical sciences, tehran, iran homayoun amini associate professor, psychiatry and psychology research center, tehran university of medical sciences, tehran, iran ehsan esmaelii shandiz iranian center of neurological research, department of neurology, school of medicine, tehran university of medical sciences, tehran, iran

background: fatigue, a major cause of disability in individuals with multiple sclerosis (ms), is associated with reduced quality of life. the aim of this study was to evaluate the reliability and reproducibility of the persian version of modified fatigue impact scale (mfis) in iranian patients with ms. methods: this study included 15 subjects with clinically definite ms, 15 hospitalized patient...

متن کامل

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید

function paginate(evt) { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term pg=parseInt(evt.target.text) var data={ "year":filter_year, "term":term, "pgn":pg } filtered_res=post_and_fetch(data,url) window.scrollTo(0,0); } function update_search_meta(search_meta) { meta_place=document.getElementById("search_meta_data") term=search_meta.term active_pgn=search_meta.pgn num_res=search_meta.num_res num_pages=search_meta.num_pages year=search_meta.year meta_place.dataset.term=term meta_place.dataset.page=active_pgn meta_place.dataset.num_res=num_res meta_place.dataset.num_pages=num_pages meta_place.dataset.year=year document.getElementById("num_result_place").innerHTML=num_res if (year !== "unfilter"){ document.getElementById("year_filter_label").style="display:inline;" document.getElementById("year_filter_place").innerHTML=year }else { document.getElementById("year_filter_label").style="display:none;" document.getElementById("year_filter_place").innerHTML="" } } function update_pagination() { search_meta_place=document.getElementById('search_meta_data') num_pages=search_meta_place.dataset.num_pages; active_pgn=parseInt(search_meta_place.dataset.page); document.getElementById("pgn-ul").innerHTML=""; pgn_html=""; for (i = 1; i <= num_pages; i++){ if (i===active_pgn){ actv="active" }else {actv=""} pgn_li="
  • " +i+ "
    • "; pgn_html+=pgn_li; } document.getElementById("pgn-ul").innerHTML=pgn_html var pgn_links = document.querySelectorAll('.mypgn'); pgn_links.forEach(function(pgn_link) { pgn_link.addEventListener('click', paginate) }) } function post_and_fetch(data,url) { showLoading() xhr = new XMLHttpRequest(); xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8'); xhr.onreadystatechange = function() { if (xhr.readyState === 4 && xhr.status === 200) { var resp = xhr.responseText; resp_json=JSON.parse(resp) resp_place = document.getElementById("search_result_div") resp_place.innerHTML = resp_json['results'] search_meta = resp_json['meta'] update_search_meta(search_meta) update_pagination() hideLoading() } }; xhr.send(JSON.stringify(data)); } function unfilter() { url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":"unfilter", "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } function deactivate_all_bars(){ var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(bar) { bar.dataset.active = false bar.style = "stroke:#71a3c5;" }) } year_chart.on("created", function() { var yrchart = document.querySelectorAll('.ct-bar'); yrchart.forEach(function(check) { check.addEventListener('click', checkIndex); }) }); function checkIndex(event) { var yrchart = document.querySelectorAll('.ct-bar'); var year_bar = event.target if (year_bar.dataset.active == "true") { unfilter_res = unfilter() year_bar.dataset.active = false year_bar.style = "stroke:#1d2b3699;" } else { deactivate_all_bars() year_bar.dataset.active = true year_bar.style = "stroke:#e56f6f;" filter_year = chart_data['labels'][Array.from(yrchart).indexOf(year_bar)] url=/search_year_filter/ var term=document.getElementById("search_meta_data").dataset.term var data={ "year":filter_year, "term":term, "pgn":1 } filtered_res=post_and_fetch(data,url) } } function showLoading() { document.getElementById("loading").style.display = "block"; setTimeout(hideLoading, 10000); // 10 seconds } function hideLoading() { document.getElementById("loading").style.display = "none"; } -->