نتایج جستجو برای: شاخص z score بدون تورش

تعداد نتایج: 491635  

هدف از این پژوهش تدوین مدل تورش های رفتاری سرمایه گذاران در ورزش  استان کرمانشاه بود. جامعه آماری این تحقیق شامل  متخصصین مدیریت ورزشی، اقتصاد و بازاریابی، سرمایه گذاران بخش خصوصی، مدیران باشگاه ها و هیئت های ورزشی بودند. نمونه گیری بصورت نمونه گیری در دسترس انجام پذیرفت. حجم جامعه نامحدود بود و تعداد 160 نفر نمونه آماری تحقیق را تشکیل دادند. ابزار پژوهش شامل پرسشنامه محقق ساخته تورش های رفتاری...

Journal: :Dinasti International Journal of Economics, Finance & Accounting 2020

2014
Christina Riedel Nora Fenske Manfred J. Müller Sandra Plachta-Danielzik Thomas Keil Linus Grabenhenrich Rüdiger von Kries

BACKGROUND Children of mothers who smoked during pregnancy have a lower birth weight but have a higher chance to become overweight during childhood. OBJECTIVES We followed children longitudinally to assess the age when higher body mass index (BMI) z-scores became evident in the children of mothers who smoked during pregnancy, and to evaluate the trajectory of changes until adolescence. METH...

ژورنال: :مجله تحقیقات اقتصادی 2011
حمید کردبچه

در طول دو دهه اخیر مطالعات کاربردی بسیاری برای ارزیابی دلایل ناکارایی در صنایع مختلف از یک روش شبه پارامتری دو مرحله ای موسوم به مدل توبیت استفاده نموده اند. کاربرد این روش برای نمونه های کوچک به دلیل امکان وجود تورش در نتایج آن، اخیراً مورد انتقاد بوده است. یک روش دو مرحله ای شبه پارامتریک بوت استرپ شامل دو الگوریتم منفرد و مضاعف را برای حل این مشکل ارائه نموده اند. این دو الگوریتم، تخمین های ا...

Journal: :iranian journal of blood and cancer 0
khadijeh arjmandi rafsanjani maryam razzaghy-azar leila zahedi-shoolami parvaneh vossough aliakbar modarres nima taheri

background: expansion of bone marrow cavity and decreased cortical and trabecular bone tissues and osteoporosis are resulted from beta-thalassemia. the aim of this study was to assess bone mineral density (bmd) in patients with β thalassemia major and intermedia, and to determine their biochemical and hormonal profiles that may affect bmd. materials and methods: in a cross sectional study from ...

Journal: :Physical review letters 2000
A G Street D Datta D B Gordon S L Mayo

Studies of lattice models of proteins have suggested that the appropriate energy expression for protein design may include nonthermodynamic terms to accommodate negative design concerns. One method, developed in lattice model studies, maximizes a quantity known as the " Z-score," which compares the lowest energy sequence whose ground state structure is the target structure to an ensemble of ran...

2011
Hyun Joon Jung Matthew Lease

Using supervised and unsupervised features individually or together, we (a) detect and filter out noisy workers via Z-score, and (b) weight worker votes for consensus labeling. We evaluate on noisy labels from Amazon Mechanical Turk in which workers judge Web search relevance of query/document pairs. In comparison to a majority vote baseline, results show a 6% error reduction (48.83% to 51.91%)...

2015
Lianne Kearsley-Fleet Kimme L. Hyrich Rebecca Davies Mark Lunt

Objectives. Children with JIA can experience delayed and restricted growth. The objectives of this study were to investigate the influence of etanercept (ETN) on vertical growth and factors associated with improved growth in patients with JIA over the initial 2 years of treatment. Methods. This analysis was restricted to ETN-treated patients in the British Society for Paediatric and Adolescent ...

Journal: :Circulation. Cardiovascular imaging 2012
Fatima I Lunze Steven D Colan Kimberlee Gauvreau Ming Hui Chen Antonio R Perez-Atayde Elizabeth D Blume Tajinder P Singh

BACKGROUND Allograft dysfunction is a common finding early after heart transplant (HT). We sought to assess the recovery of left (LV) and right ventricular (RV) function during the first year after HT in children and young adults using pulsed-wave tissue Doppler imaging. METHODS AND RESULTS We analyzed serially performed echocardiography in 44 pediatric HT recipients (median age: 7.3 years at...

2017
Maria Pokorska-Śpiewak Barbara Kowalik-Mikołajewska Małgorzata Aniszewska Magdalena Pluta Magdalena Marczyńska

BACKGROUND There is a need for validation of noninvasive alternatives to liver biopsy for the evaluation of fibrosis in children with chronic hepatitis C (CHC). The aim of this study was to evaluate the diagnostic performance of serum biomarkers modified by the body mass index z-score (BMI z-score) for the detection of fibrosis and steatosis in children with CHC. METHODS Thirty children aged ...

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