نتایج جستجو برای: general population

تعداد نتایج: 1329376  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده کشاورزی 1393

چکیده کنه تارتن دو لکه ای tetranychus urticae koch یکی از چندخوارترین آفات شناخته شده محصولات کشاورزی دنیا به حساب می آید. در این بررسی جمعیت تخم و مراحل فعال این کنه در شرایط آلودگی طبیعی و مصنوعی در برگ های 8 رقم لوبیا در سال 1392 در گلخانه و مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ارومیه موردمطالعه قرار گرفت. آزمایش به صورت طرح کاملاً تصادفی برای شرایط مزرعه در10 تکرار و برای شرایط گلخانه ای...

Journal: :iranian journal of public health 0
sanaz ahmadi ghezeldasht mohammad reza hedayati-moghaddam khosro shamsian farhad fathimoghadam hamid reza bidkhori seyed abdolrahim rezaee

background: hepatitis c virus (hcv) infection is one of the major blood-borne infections worldwide. hcv carriers may develop chronic hepatitis leading to liver cirrhosis and hepatocellular carcinoma (hcc). there is no overall estimate of the infection prevalence in the northeast of iran. we have performed this research in order to determine accurately the prevalence and risk factors of hcv infe...

Journal: :gastroenterology and hepatology from bed to bench 0
manouchehr khoshbaten md leila madad mahnaz baladast mohammad mohammadi akbar aliasgarzadeh

aim : to determine the prevalence of gastrointestinal symptoms and signs among persons with diabetes mellitus in a specialist hospital. background : gastrointestinal symptoms and signs are common among patients with diabetes mellitus. morbidity from patients and methods : in this descriptive, cross-sectional study, subjects from the general population with diabetes (n=200) were recruited for th...

Journal: :middle east journal of digestive diseases 0
zahra mohammadi abbasali keshtkar sareh eghtesad alireza jeddian ali akbar pourfatholah mahtab maghsudlu

introduction chronic hepatitis b virus (hbv) infection is one of the most important health problems worldwide with a high rate of morbidity and mortality. it is a major risk factor for cirrhosis and liver cancer. currently, iran is located in the intermediate hbv zone; however, recent studies have provided some evidence indicating an epidemiological change in the country. the aim of this study ...

Journal: :iranian journal of cancer prevention 0
bijan moghimi dehkordi research center of gastroenterology and liver diseases, shahid beheshti university of medical sciences, tehran, iran a safaee research center of gastroenterology and liver diseases, shahid beheshti university of medical sciences, tehran, iran ma pourhoseingholi research center of gastroenterology and liver diseases, shahid beheshti university of medical sciences, tehran, iran m vahedi research center of gastroenterology and liver diseases, shahid beheshti university of medical sciences, tehran, iran m habibi research center of gastroenterology and liver diseases, shahid beheshti university of medical sciences, tehran, iran a pourhoseingholi research center of gastroenterology and liver diseases, shahid beheshti university of medical sciences, tehran, iran

background: individuals with a positive family history of colorectal cancer have an increased risk of developing this type of cancer. the number of affected relatives and the age at diagnosis are two factors that increase the risk of colorectal cancer. the aim of this study was to assess the prevalence of a positive family history of colorectal cancer in a random sample among the iranian genera...

Journal: :hepatitis monthly 0
muhammad sohail afzal department of chemistry, school of science, university of management and technology (umt), lahore, pakistan; department of chemistry, school of science, university of management and technology (umt), lahore, pakistan. tel: +92-3215244808, fax: +92-5190856102 tahir ahmad atta ur rahman school of applied biosciences, national university of science and technology, islamabad, pakistan haroon ahmed department of biosciences, comsats institute of information technology, islamabad, pakistan

Journal: :Emerging Infectious Diseases 2005

Journal: :گوارش 0
mohammadreza ghadir elham jafari mohammadtaghi amiriani houry rezvan sedigheh aminikafiabad akram pourshams

background: hepatitis c is one of the most important etiological factor in chronic liver disease which could lead to the progressive liver cirrhosis and hepatocellular carcinoma. the purpose of this study is to determine the prevalence of hepatitis c in east of golestan province (north-east of iran). materials and methods: 2123 inhabitants from north-east of iran of general population have been...

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