نتایج جستجو برای: paired sample ttest

تعداد نتایج: 450812  

1996
ULRICH H. GERLACH

The geometrical and quantum mechanical basis for Davies' and Unruh's acceleration temperature is traced to a type of quantum mechanical (\achronal") spin. Its existence and deenition are based on pairs of causally disjoint accelerated frames. For bosons the expected spin vector of monochromatic particles is given by the \Planckian power" and the \r.m.s. thermal uctuation" spectra. Under space-t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی صنایع 1385

پیش بینی ریسک سهام توسط روش garch(1,1) در این تحقیق فراریت (انحراف معیار استاندارد بازده) که رایج ترین معیار برای سنجش ریسک می باشد، برای بازده سهام (ناشی از تفاوت قیمت سهم در دو زمان متفاوت) توسط روش garch(1,1) یا generalized autoregressive conditionally heteroskedastic با پارامترهای p=1 و q=1 پیش بینی می شود.برای این کار داده های مربوط به قیمت سهام و به دو قسمت تقسیم می شوند: in-sample و out...

Journal: :Journal of Business Research-Turk 2021

Purpose – The purpose of this research is to explore the effects “athletic star power factors” such as professional reliability, appealing personality, athletic expertise, social attractiveness and characteristic style on Generation Y consumers’ consumption decisions. And also examine relationship between effect, gender age variables. Design/methodology/approach This research, which quantitativ...

2013
A. S. Haruna

The incessant discomfort for Voluntary Counselling and Testing (VCT) exhibited by students in some tertiary institutions in Kano State, Nigeria is capable of causing Psychological Resistance as well as jeopardizing the purpose of HIV intervention. This study investigated the Prevalence of Psychological Resistance to VCT of HIV/AIDS among students of tertiary institutions in the state. Two null ...

2004
Wuwei Wayne Feng Eli Lilly Dong Ding

Crossover clinical trial design attracts a lot of attention in today’s drug development environment because of its unique characteristics. This paper will start with an introduction of a 2 * 2 crossover clinical trial design, then a review of advantages and disadvantages of cross over studies compared with parallel studies. Different types of SAS procedure, such as PROC TTEST, PROC GLM and PROC...

Journal: :CoRR 2017
Eddie Antonio Santos Carson McLean Christopher Solinas Abram Hindle

Context: Virtual machines provide isolation of services at the cost of hypervisors and more resource usage. This spurred the growth of systems like Docker that enable single hosts to isolate several applications, similar to VMs, within a low-overhead abstraction called containers. Motivation: Although containers tout low overhead performance, do they still have low energy consumption? Methodolo...

2016
Kalyan Kancherla Krishna Kancharla Gaby Weissman Abdalla A Elagha Swetha Samineni Peter C Hill Steven Boyce Anthon Fuisz

Methods Patients who underwent LGE CMR between January 2003 and February 2010 <1 month prior to CABG were included. A standard 16 segment model was used for Left ventricular (LV) scar quantification. Patients were categorized into Scar group and No-scar groups. Perfusion time (PT), Cross clamp time (CCT), 30-Day mortality, Ventricular arrhythmia, duration of ventilation, prolonged ICU (ICU-LOS)...

2017
Thakib Al-Shalan

Objective: The purpose of this study was to evaluate the effects of application of three over the counter whitening toothpastes (Colgate Optic White, Aquafresh Ultimate White and Crest 3D White) on the color stability of different esthetic restorative materials (Resin composite/Filtek Z250 XT, resin modified glass ionomer/GC Fuji II LC, and glass ionomer/Ketac Molar Quick Aplicapweek) commonly ...

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