نتایج جستجو برای: values of r2

تعداد نتایج: 21178481  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و زبانهای خارجی 1390

august wilson is undoubtedly one of the rare black playwrights whose works have attracted streams of attention and worldwide audience. the present study aims at analyzing fences and piano lesson which are two of the most successful plays in his pittsburgh cycle from the perspective of michel foucault’s theories and ideas. studying these two plays from foucault’s perspective opens new windows in...

2004
Salvatore Caporaso Michele Zito

If uniform coding (Gödelization) of potentially infinite sequences of numbers can be performed in PSPACEF, then PSPACE = EXPTIME 6= EXPSPACE = 2-EXPTIME, and, for all p, we have p−EXPSPACE = p+1-EXPTIME; if it can be performed in LINSPACEF, we also have LINSPACE = DTIME(2); the proof fails, when relativized to oracle-TM’s. A by-product of this research is that PTIMEF is not closed under number-...

Journal: :Journal of computer assisted tomography 2017
Chen Chu Nan Zhou Huayong Zhang Xin Dou Ming Li Song Liu Jie Wang Weibo Chen Queenie Chan Lingyun Sun Jian He Zhengyang Zhou

OBJECTIVE To explore the application of parotid R2* values for evaluating Sjögren syndrome (SS). METHODS Twenty-four consecutive SS patients and 24 sex-matched and age-matched healthy volunteers underwent bilateral parotid 3.0 T magnetic resonance (MR) imaging, including blood oxygenation level dependent sequence. Parotid R2* values of SS patients and volunteers were compared. A receiver oper...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1391

efl/esl textbooks have been regarded as essential language teaching materials with which the learners spend about 70 up to 90 percent of their class time. the important role they play and their vast use make them not only influential in learning the language but also in shaping values and attitudes. put it another way, textbooks socialize learners using their contents (i.e. texts, illustrations...

2015
Lucía Gutiérrez Michael J. House Nisha Vasavda Emma Drašar Isabel Gonzalez-Gascon y Marin Austin G. Kulasekararaj Tim G. St Pierre Swee L. Thein Michela Grosso

Bone marrow, spleen, liver and kidney proton transverse relaxation rates (R2), together with cardiac R2* from patients with sickle cell disease (SCD), paroxysmal nocturnal hemoglobinuria (PNH) and non-transfusion dependent thalassemia (NTDT) have been compared with a control group. Increased liver and bone marrow R2 values for the three groups of patients in comparison with the controls have be...

Journal: :Movement disorders : official journal of the Movement Disorder Society 2015
Nadya Pyatigorskaya Michael Sharman Jean-Christophe Corvol Romain Valabregue Lydia Yahia-Cherif Fabrice Poupon Florence Cormier-Dequaire Hartwig Siebner Stephan Klebe Marie Vidailhet Alexis Brice Stephane Lehéricy

OBJECTIVES The goal of this work was to investigate iron deposition in the basal ganglia and thalamus in symptomatic and asymptomatic leucine-rich repeat kinase 2 (LRRK2) and Parkin-associated Parkinson's disease (PD), using R2* relaxometry rate. METHODS Twenty subjects with genetic PD (four symptomatic and two asymptomatic Parkin subjects, nine symptomatic and five asymptomatic LRRK2 subject...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه شیمی و مهندسی شیمی ایران - پژوهشکده شیمی تجزیه و معدنی 1390

hydrochlorothiazide (hct) is a diuretic agent which is shown to be effective in the treatment of hypertension. literature reports have demonstrated that urinary excretion data may be used to assess the bioavailability of various formulations containing this thiazide. also hct consumption by the athletes is one of the drugs which should be regulated by world anti-doping agency (wada), because of...

2012
Ran Tao Jiuquan Zhang Yongming Dai Zhonglan You Yi Fan Jinguo Cui Jian Wang

OBJECTIVE To establish a baseline of susceptibility-weighted imaging (SWI) phase value as a means of detecting iron abnormalities in cirrhotic liver and to analyze its relationship with R2*. MATERIALS AND METHODS Sixteen MnCl(2) phantoms, thirty-seven healthy individuals and 87 cirrhotic patients were performed SWI and multi-echo T2*-weighted imaging, and the signal processing in NMR (SPIN) s...

بختیاری, مرتضی, حمیدی ابرقویی, زهره, ریاحی عالم, نادر, سرکار, سعید , شاکری, ناصر, عقابیان, محمدعلی, قاسم زاده, علی, قناعتی, حسین, لاریجانی, باقر,

Introduction & Objective : The aim of this study was to optimize MRI conventional protocols for BMD(Bone Mineral Density) measurements using MRI Relaxometry in systems not facilitated with special multi echo protocols. Since, cortical and trabecular bone separation can not be performed in DEXA, so the results might lead to erroneous interpretation of BMD values. One method for bone quality dete...

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