نتایج جستجو برای: multivariate analysis

تعداد نتایج: 2863250  

Journal: :desert 0
m. jafari professor, faculty of natural resources, university of tehran , karaj, iran m. biniaz instructor, hormozgan university, bandar abbas, iran e. janfaza msc graduate, faculty of natural resources, university of tehran , karaj, iran m.j. nematolahi instructor, shiraz university, shiraz, iran m. karimpour reyhan associate professor, international desert research center, university of tehran, tehran, iran

relationships between soil factors and vegetation types in playa of damghan was investigated. six vegetationtypes including artemisia.sieberi, arundo. sp, artemisia.sieberi-peganum.harmala, alhagi.cammelerom,artemisia.sieberi-petropyron.sp, tamarix.passerinoides-halocnemum strobilaceum. one bare land was recognized inthe study area and the research was conducted within mentioned types. canopy p...

1972
Hervé Abdi

As the name indicates, multivariate analysis comprises a set of techniques dedicated to the analysis of data sets with more than one variable. Several of these techniques were developed recently in part because they require the computational capabilities of modern computers. Also, because most of them are recent, these techniques are not always unified in their presentation, and the choice of t...

2015
Jing Zhang Benchang Shia Huangdi Yi Shuangge Ma Chi Ma

BACKGROUND Illness and the medical expenditure that follows have a profound impact on the well-being of individuals and households. China is a huge country with significant regional differences. The goal of this study is to investigate the associations of illness and medical expenditure with other categories of household expenditures, with special attention paid to the differences in observatio...

Journal: :Medical education online 2006
Dario M Torre Deborah Simpson D Bower P Redlich P Palma-Sisto Michael R Lund James L Sebastian

OBJECTIVE To identify and compare learning activities that students associate with high quality teaching across clerkships. METHODS For six months, 110 third year medical students recorded data on learning activities and teaching quality using personal digital assistants (PDAs) during five different required clinical clerkships. Univariate and multivariate analyses were performed to assess th...

2016
Corrado De Vito Azzurra Massimi Domitilla Di Thiene Annalisa Rosso Elvira D’Andrea Maria Rosaria Vacchio Paolo Villari Carolina Marzuillo

BACKGROUND Health promotion and prevention activities should tackle health inequalities to reduce disparities in health among disadvantaged populations. This study aimed to assess the extent to which the Italian Regions considered health inequalities during the planning of prevention activities, to detect geographical differences and to identify the possible determinants of differences in atten...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1387

رفتار تجمعی یک مایع یونی با ساختار ایمیدازولی، با نام 1-دودسیل تری متیل ایمیدازولیم کلراید ([c12mim][cl]) و یک surfactant با ساختاری مشابه، دودسیل تری متیل آمونیم کلراید (dtac)، در کسر مولی های مختلف از حلال های دوتایی آب-متانول بوسیله تکنیک هدایت سنجی مورد مطالعه قرار گرفت. از داده های هدایت سنجی، غلظت بحرانی میسل (cmc)، درجه تفکیک زوج-یون (α) و انرژی آزاد گیبس فرایند تشکیل میسل (δg°mic) در کس...

2016
Nadja Kabisch Dagmar Haase Matilda Annerstedt van den Bosch

Research suggests that there is a relationship between the health of urban populations and the availability of green and water spaces in their daily environment. In this paper, we analyze the potential intra-urban relationships between children's health determinants and outcomes and natural areas in Berlin, Germany. In particular, health indicators such as deficits in viso-motoric development i...

Journal: :Journal of Multivariate Analysis 1973

Journal: :IEEE Signal Processing Letters 2012

Journal: :Econometrics 2021

Recently, the world of cryptocurrencies has experienced an undoubted increase in interest. Since first cryptocurrency appeared 2009 aftermath Great Recession, popularity digital currencies has, year by year, risen continuously. As February 2021, there are more than 8525 with a market value approximately USD 1676 billion. These particular assets can be used to diversify portfolio as well for spe...

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