نتایج جستجو برای: rrr

تعداد نتایج: 869  

Journal: :Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 2007
Wei Hong Wang Jia Qing Huang Ge Fan Zheng Harry H X Xia Wai Man Wong Xin Guang Liu Johan Karlberg Benjamin C Y Wong

BACKGROUND & AIMS The aim of this study was to assess systematically the efficacy of proton pump inhibitors (PPIs) in the treatment of functional dyspepsia compared with placebo and to determine if any difference in the response exists between symptom subgroups of functional dyspepsia. METHODS A literature search was performed through September 2005 in PubMed, Medline, Embase, CINAHL, and Coc...

2014
Barbara I Nicholl Daniel Mackay Breda Cullen Daniel J Martin Zia Ul-Haq Frances S Mair Jonathan Evans Andrew M McIntosh John Gallagher Beverly Roberts Ian J Deary Jill P Pell Daniel J Smith

BACKGROUND Chronic pain has a strong association with major depressive disorder (MDD), but there is a relative paucity of studies on the association between chronic multisite pain and bipolar disorder (BD). Such studies are required to help elucidate the complex biological and psychological overlap between pain and mood disorders. The aim of this study is to investigate the relationship between...

2013
Syuichi Ooki

BACKGROUND Most twins after assisted reproductive technology (ART) are dizygotic. Analysis of dizygotic twin pairs is useful in assessing familial aggregation in the development of birth defects. METHODS Using nationwide post-ART data from the Japan Society of Obstetrics and Gynecology, recurrence risk ratios (RRRs)-defined as probandwise concordance rates of birth defects in twins divided by...

Journal: :Medicare & medicaid research review 2012
Jayasree Basu Lee Rivers Mobley

OBJECTIVE The study evaluates the performance of Medicare managed care (Medicare Advantage [MA]) Plans in comparison to Medicare fee-for-service (FFS) Plans in three states with historically high Medicare managed care penetration (New York, California, Florida), in terms of lowering the risks of preventable or ambulatory care sensitive conditions (ACSC) hospital admissions and providing increas...

Journal: :The Laryngoscope 2013
Myriam Loyo Ralph P Tufano Christine G Gourin

OBJECTIVES/HYPOTHESIS To characterize contemporary patterns of thyroid surgical care and the effect of volume status on surgical care and short-term outcomes. STUDY DESIGN Retrospective cross-sectional study. METHODS Discharge data from the Nationwide Inpatient Sample for 871,644 patients who underwent surgery for thyroid disease in 1993 through 2008 were analyzed using cross-tabulations an...

ژورنال: :مهندسی مکانیک مدرس 0
مهدی طالع ماسوله استادیار مهندسی مکاترونیک دانشکده علوم و فنون نوین دانشگاه تهران-آزمایشگاه تعامل انسان و ربات حسین کاظمی دانشجو کارشناسی ارشد، مهندسی مکانیک، دانشگاه صعنی شریف پوریا نوذری پرشکوهی دانشجو کارشناسی ارشد، مهندسی مکانیک، دانشگاه صعنی شریف رویا صباغ نوین دانشجو دکتری، دانشکده مهندسی مکانیک، دانشگاه یوتا

این مقاله به مسیریابی ربات موازی صفحه ای 3-rrr برای جلوگیری از تداخل مکانیکی در فضای کاری آن می پردازد. برای رسیدن به این هدف از روش میدان پتانسیل مجازی استفاده می شود. برای جلوگیری از گیر کردن ربات در کمینه های نسبی میدان پتانسیل، یک روش جدید که ترکیبی از روش میدان پتانسیل مجازی، منطق شرطی و روش های کمکی مانع مجازی پیرو، مانع مجازی متعامد و مانع مجازی محیطی است به عنوان یک الگوریتم هیبریدی ارا...

Journal: :BMC Medical Informatics and Decision Making 2008
Lene Sørensen Dorte Gyrd-Hansen Ivar Kristiansen Jørgen Nexøe Jesper Nielsen

BACKGROUND Despite increasing recognition of the importance of involving patients in decisions on preventive healthcare interventions, little is known about how well patients understand and utilise information provided on the relative benefits from these interventions. The aim of this study was to explore whether lay people can discriminate between preventive interventions when effectiveness is...

Journal: :Public health nutrition 2016
Carolina Batis Michelle A Mendez Penny Gordon-Larsen Daniela Sotres-Alvarez Linda Adair Barry Popkin

OBJECTIVE We examined the association between dietary patterns and diabetes using the strengths of two methods: principal component analysis (PCA) to identify the eating patterns of the population and reduced rank regression (RRR) to derive a pattern that explains the variation in glycated Hb (HbA1c), homeostasis model assessment of insulin resistance (HOMA-IR) and fasting glucose. DESIGN We ...

Journal: :Circulation 2001
G R Dagenais S Yusuf M G Bourassa Q Yi J Bosch E M Lonn S Kouz J Grover

BACKGROUND In trials of patients with left ventricular dysfunction or heart failure, ACE inhibitor use was unexpectedly associated with reduced myocardial infarction (MI). Using the Heart Outcomes Prevention Evaluation (HOPE) trial data, we tested prospectively whether ramipril, an ACE inhibitor, could reduce coronary events and revascularization procedures among patients with normal left ventr...

2015
Gideon Rutaremwa Stephen Ojiambo Wandera Tapiwa Jhamba Edith Akiror Angela Kiconco

BACKGROUND Uganda's poor maternal health indicators have resulted from weak maternal health services delivery, including access to quality family planning, skilled birth attendance, emergency obstetric care, and postnatal care for mothers and newborns. This paper investigated the predictors of maternal health services (MHS) utilization characterized as: desirable, moderate and undesirable. ME...

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