نتایج جستجو برای: failure

تعداد نتایج: 372044  

Journal: :تحقیقات مهندسی کشاورزی 0
امیر صمدی استادیار گروه مهندسی آب دانشکده فنی و مهندسی دانشگاه بین المللی امام خمینی (ره) محمدهادی داودی دانشیار بازنشسته پژوهشکده حفاظت خاک و آبخیزداری ابراهیم امیری تکلدانی دانشیار بازنشسته گروه مهندسی آبیاری و آبادانی دانشکده مهندسی و فناوری کشاورزی دانشگاه تهران حسن رحیمی استاد بازنشسته گروه مهندسی آبیاری و آبادانی دانشکده مهندسی و فناوری کشاورزی دانشگاه تهران

because it is not possible to recognize the mechanism of cantilever failure in field studies, this type of common failure in riverbanks is investigated in the laboratory. for this purpose, two samples of susceptible soil that forms an overhanging block in riverbanks are used for physical model tests to determine their physical, chemical and mechanical characteristics. soil blocks of different d...

Journal: :journal of research in medical sciences 0
tuba cimilli ozturk emergency medicine clinic, umraniye training and research hospital, istanbul, turkey erol erden unluer associate professor, emergency medicine clinic, izmir ataturk training and research hospital, izmir, turkey arzu denizbasi professor, department of emergency medicine, school of medicine, marmara university, istanbul, turkey ozlem guneysel associate professor, emergency medicine clinic, kartal lutfi kä±rdar training and research hospital, istanbul, turkey ozge onur associate professor, department of emergency medicine, school of medicine, marmara university, istanbul, turkey

1024x768 normal 0 false false false en-us x-none fa background : heart failure is a common health problem with poor prognosis. the gold standard for diagnosis is echocardiography but it is not always reachable, especially in emergency conditions. nt-pro-brain natriuretic peptide (nt-probnp) is a novel indicator for the diagnosis of heart failure and is being used in routine tests in emergency r...

Journal: :مجله دانشگاه علوم پزشکی شهید صدوقی یزد 0
اسکندر حاجیانی e hajiani مسعود سیدیان m seidian

introduction: cardiovascular abnormalities have been reported in liver cirrhosis (lc). in these patients, cardiac symptoms and physical signs occur as the liver functions worsen. cirrhosis is associated with hyper dynamic circulation and beta-adrenergic system changes responsible for the cardiovascular abnormalities. the purpose of the present study was to explore the echocardiographic findings...

Journal: :journal of electrical and computer engineering innovations 0
shiva taghipour department of electrical engineering, university of guilan, rasht, iran rahebeh niaraki asli department of electrical engineering, university of guilan, rasht, iran

due to the expected increase of defects in circuits based on deep submicron technologies, reliability has become an important design criterion. although different approaches have been developed to estimate reliability in digital circuits and some measuring concepts have been separately presented to reveal the quality of analog circuit reliability in the literature, there is a gap to estimate re...

Journal: :journal of agricultural science and technology 2010
e. amiri-tokaldani

river bank erosion can result in considerable riparian land loss and the delivery of large volumes of sediment to reaches downstream. consequently, the ability to predict the stability and failure geometry of eroding river banks is an important prerequisite for es-timating the rate of bank erosion and sediment yield associated with bank erosion. in this paper a new model capable of analyzing th...

M Avijgan

Losing weight by acupuncture is an old Chinese method. Nevertheless, many physician and even people don’t believe to it. The main goal of this study is effectiveness of acupuncture on obesity. This study includes some 40 patients aged 16-48 years, with male to female ratio 1 to 2, who fulfilled with obesity criteria of this study. On the base of Obesity syndrome of diagnosis the mains body poin...

Journal: :the journal of tehran university heart center 0
nikoo hamzeh shariati hospital, tehran university of medical sciences, tehran, iran. fatemeh ghadimi shariati hospital, tehran university of medical sciences, tehran, iran. rojin farzaneh shariati hospital, tehran university of medical sciences, tehran, iran. seyed kianoosh hosseini shariati hospital, tehran university of medical sciences, tehran, iran.

the incidence and prevalence of obesity are fast increasing worldwide. various indices have been used to measure and assess obesity. the body mass index (bmi) is the most common and practical of these indices. overweight and obesity exert considerable adverse effects on the cardiovascular system. these effects are mediated through various neurohormonal and cytokine pathways, most of which are i...

Journal: :سالمند 0
شراره ضیغمی محمدی sharareh zeighami mohammadi karaj islamic azad university,karaj, iranدانشکده پرستاری و مامایی دانشگاه آزاد اسلامی واحد کرج سولماز اصغرزاده حقیقی soolmaz asgharzadeh haghighi social security alborz hospital,karaj,iranبیمارستان تخصصی تامین اجتماعی البرز کرج ندا فلاح neda falah karaj islamic azad university, karaj, iran.دانشکده پرستاری و مامایی دانشگاه آزاد اسلامی واحد کرج

objectives: anemia is prevalent in heart failures and is an independent risk factor for adverse clinical outcomes in patients with chf. the aim of the present study was to determine the prevalence of anemia in elderly with systolic heart failure hospitalized in alborz hospital of karaj in 2009. methods & materials: this is a descriptive retrospective study that reviewed 154 medical records of e...

Journal: :medical journal of islamic republic of iran 0
maryam amini department of community nutrition, school of nutritional sciences and dietetics, tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) maryam khosravi department of community nutrition, school of nutritional sciences and dietetics, tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) hamid reza baradaran endocrine research center (firouzgar), institute of endocrinology & metabolism, iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: endocrine research center (firouzgar) institute of endocrinology & metabolism rasha atlasi ebm group, endocrinology and metabolism research center, endocrinology and metabolism clinical sciences institute, tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences)سازمان های دیگر: ebm group, endocrinology and metabolism research center endocrinology and metabolism clinical sciences institute

background :hyperhomocysteinemia is a risk factor for cardiovascular disease particularly in patients with end stage renal disease (esrd). vitamin b12 supplementation on its own still remains as a controversial issue for clinicians in decreasing the level of homcysteine in this group of patients.   methods : using all randomized controlled trials (rcts), clinical trials and pre-post-trial studi...

Journal: :تحقیقات نظام سلامت 0
فاطمه رجعتی گروه بهداشت عمومی، دانشکده بهداشت، دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران فیروزه مصطفوی گروه آموزش بهداشت و ارتقا سلامت، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران غلامرضا شریفی راد گروه آمارو اپیدمیولوژی، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران آوات فیضی گروه آمارو اپیدمیولوژی، دانشکده بهداشت، دانشگاه علوم پزشک اصفهان، اصفهان، ایران معصومه صادقی دانشیار، مرکز تحقیقات بازتوانی قلبی، پژوهشکده قلب و عروق اصفهان، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران مهنوش رئیسی دانشجوی دکترا، کمیته تحقیقات دانشجویی، گروه آموزش بهداشت و ارتقای سلامت، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

background: heart failure is a severe chronic disease and has a negative impact on the health-related quality of life (hrql). in addition to preventing disease progress, one of the important goals in heart failure treatment is to improve the patient’s quality of life. this study is aimed to compare three generic to specific quality of life instruments that are used in cardiac rehabilitation set...

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