نتایج جستجو برای: Specificity

تعداد نتایج: 143697  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده فنی 1390

نهان کاوی کشف وجود پیام مخفی در یک سیگنال حامل مانند تصویر است. تکنیک نهان کاوی، روش نهان نگاری استفاده شده، پیام تزریق شده و تصویری که به عنوان حامل استفاده می شود از عواملی هستند که بر کشف درست وجود پیام مخفی در تصویر موثرند. تصویر حامل دارای ویژگی هایی نظیر ابعاد، فرمت و ... است. اما مهم ترین ویژگی های تصویر که می توانند بر کارایی نهان کاوی موثر باشند، ویژگی های محتوی آن است. در بیشتر تکنیک...

Journal: :iranian journal of pathology 2012
fariba abbasi zahra yekta adel aryan

background and objective: intraoperative consultation by frozen section is a high – risk procedure with important consequences. therefore, it is critical to determine efficiency of frozen section performance periodically. this study was performed to determine the accuracy of frozen section in urmia university of medical sciences. materials & methods:inthis cross sectional study, we compare...

Journal: :archives of clinical infectious diseases 0
ashraf tavanaee sani department of infectious diseases, imam reza hospital, mashhad university of medical sciences, mashhad, ir iran; department of infectious diseases, imam reza hospital, mashhad university of medical sciences, mashhad, ir iran. tel.: +98-9155091439, +98-5118515001, fax: +98-5118591057 maryam mojtabavi department of infectious diseases, imam reza hospital, mashhad university of medical sciences, mashhad, ir iran kiarash ghazvini department of microbiology, ghaem hospital, mashhad university of medical sciences, mashhad, ir iran

conclusions: considering the low rate of ceftriaxone resistance amongst isolated pneumcocci.in this study, only ceftriaxone treatment of adult patients with invasive pneumococcal infections (other than cns infections) is sufficient; but pediatric patients and patients with cns infections should be treated with ceftriaxone and vancomycin. apparently, diminution of vancomycin use can be resulted ...

Journal: :iranian journal of public health 0
mj gharavi dept. of parasitology, faculty of allied medicine, iran university of medical sciences, tehran, ira h oormazdi dept. of parasitology, faculty of medicine, iran university of medical sciences, tehran, iran es roointan dept. of parasitology, faculty of medicine, iran university of medical sciences, tehran, iran

background: toxoplasmosis is a zoonotic disease with widespread distribution throughout the world. it is caused by the pro­tozoan parasite toxoplasma gondii . as laboratory diagnosis of toxoplasmosis is not straightforward, this study was aimed to compare the sensitivity and specificity of conventional and unconventional methods of diagnosis based on the meas­urement of igm and igg for determin...

Journal: :hepatitis monthly 0
rentao yu department of infectious diseases, southwest hospital, third military medical university, chongqing, china shitao ding department of infectious diseases, southwest hospital, third military medical university, chongqing, china; chongqing key laboratory of infectious diseases, southwest hospital, third military medical university, chongqing, china wenting tan department of infectious diseases, southwest hospital, third military medical university, chongqing, china; chongqing key laboratory of infectious diseases, southwest hospital, third military medical university, chongqing, china shun tan department of infectious diseases, southwest hospital, third military medical university, chongqing, china; chongqing key laboratory of infectious diseases, southwest hospital, third military medical university, chongqing, china zhaoxia tan department of infectious diseases, southwest hospital, third military medical university, chongqing, china; chongqing key laboratory of infectious diseases, southwest hospital, third military medical university, chongqing, china shiqing xiang department of laboratory diagnosis, southwest hospital, third military medical university, chongqing, china

conclusions pivka-ii was as efficient as afp when used as a single marker for hcc screening and the combination of two biomarkers gave a better performance. results the sensitivity and specificity of pivka-ii were 74.6% and 67.8% at a cutoff of 40 mau/ml and 64.2% and 89.7% at a cutoff of 200 mau/ml. the sensitivity and specificity of afp were 76.7% and 65.0% at a cutoff of 20 ng/ml and 60.4% a...

Journal: :the archives of bone and joint surgery 0
omid momenzadeh shiraz university of medical sciences, chamran hospital, shiraz, iran mohamad gerami shiraz university of medical sciences, chamran hospital, shiraz, iran sepideh sefidbakht shiraz university of medical sciences, chamran hospital, shiraz, iran sakineh dehghani shiraz university of medical sciences, chamran hospital, shiraz, iran

background: the objective of this study was to determine the diagnostic value of magnetic resonance imaging for shoulder joint pathologies and then compare the results with arthroscopy, the standard for joint diagnosis. methods: in this cross-sectional study, 80 patients with shoulder joint disorders, who underwent final arthroscopy, were studied. based on patients’ medical history and physical...

Journal: :avicenna journal of medical biotechnology 0

trichomoniasis is a worldwide infection and due to its complications rapid and accurate diagnosis of infection especially in pregnant women is very important. in this study, development of a latex agglutination test using native antigens for rapid diagnosis of trichomoniasis is investigated. trichomonas vaginalis was harvested from tyis33 culture medium and anti trichomonas vaginalis antiserum ...

Journal: :journal of agricultural science and technology 2010
h. sadeghi

the relationship between female oviposition preference and offspring performance is a key area of study on the evolution of host specificity. this study investigates host prefer-ence of the polyphagous hover fly syrphus ribesii (diptera: syrphidae) and compares it with some components of its offspring`s performance. females and offspring were tested on six naturally used aphid hosts (blackberry...

Journal: :iranian journal of psychiatry 0
mehri gholami mental health research center,tehran psychiatric institue, iran university medical science,tehran, iran hadi teimoori iran university medical science, tehran, iran amir shabani mental health research center,tehran psychiatric institue, iran university medical science,tehran, iran morteza naserbakht mental health research center,tehran psychiatric institue, iran university medical science,tehran, iran nikan health research center,tehran,iran masood ahmadzad asl mental health research center,tehran psychiatric institue, iran university medical science,tehran, iran nikan health research center,tehran,iran

objective: depression is the most common co-morbid psychiatric disorder in patients with epilepsy. yet it remains under recognized and under-treated. for depression screening in this patient need to a convenient questionnaire for patients with epilepsy. this questionnaire has shown high sensitivity for depression screening in many studies. the center for epidemiological studies depression scale...

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