نتایج جستجو برای: spearman correlation

تعداد نتایج: 393475  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1390

زمینه و هدف : بررسی ارتباط بین سطح سرمی عناصر و وضعیت تغذیه با خونریزی زودرس بعد از زایمان و نیز ارتباط سطح سرمی عناصر با وضعیت تغذیه مادران باردار می باشد . روش بررسی : در یک مطالعه طولی آینده نگر که بر روی 538 مادر باردار 35- 18 ساله در سن بارداری 20 – 14 که به درمانگاههای پره ناتال بیمارستانهای آموزشی کل سطح شهر تهران مراجعه و رضایت نامه کتبی ، پرسشنامه بسامد خوراک و نمونه خون از آنها گرفته...

2017
Prayas Jain Pranav Goel Devang Kulshreshtha Kaushal Kumar Shukla

The paper describes the best performing system for EmoInt a shared task to predict the intensity of emotions in tweets. Intensity is a real valued score, between 0 and 1. The emotions are classified as anger, fear, joy and sadness. We apply three different deep neural network based models, which approach the problem from essentially different directions. Our final performance quantified by an a...

2013
Maria Grazia Porpora Renato Lucchini Annalisa Abballe Anna Maria Ingelido Silvia Valentini Eliana Fuggetta Veronica Cardi Adele Ticino Valentina Marra Anna Rita Fulgenzi Elena De Felip

The aim of this study was to characterize the placental transfer of some environmental pollutants, and to explore the possibility of quantitatively predicting in utero exposure to these contaminants from concentrations assessed in maternal blood. Levels of toxic substances such as pesticides (p,p'-DDE, β-HCH, and HCB), polychlorinated biphenyls (PCBs), perfluorooctane sulfonate (PFOS), and perf...

2012
Werner Hürlimann

Based on the trivariate reduction technique two different trivariate Bernoulli mixtures of univariate uniform distributions and their associated trivariate copulas with bivariate linear Spearman marginal copulas are considered. Mathematical characterizations of these Bernoulli mixture models are obtained. Since Bernoulli mixture trivariate reduction copulas are not compatible with all valid gra...

2014
Wool Suh Jung Min Lee Changwon Kee

PURPOSE To evaluate the relationship between the structural damage as assessed by time-domain optical coherence tomography (OCT) and functional changes in glaucoma. METHODS In total, 190 patients with normal tension glaucoma or primary open angle glaucoma were included in this study. The thickness of retinal nerve fiber layer (RNFL) around the optic disc and the area of RNFL defect were deter...

2016
Pin Huang Andrew MacKinlay Antonio Jimeno-Yepes

Public health surveillance is challenging due to difficulties accessing medical data in real-time. We present a novel, effective and computationally inexpensive method for syndromic surveillance using Twitter data. The proposed method uses a regression model on a database previously built using named entity recognition to identify mentions of symptoms, disorders and pharmacological substances o...

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