نتایج جستجو برای: multivariate analysis methods

تعداد نتایج: 4141715  

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...

Journal: :Behavioural processes 1993
G J Pierce J G Ollason D C Speirs

Common shrews (Sorex araneus L.) were presented with two prey types at various densities in a depleting environment. Observed diet choice was compared to predictions of the classical optimal diet model and of "shrew-specific" simulations incorporating patch depletion. Two strategies were simulated: expansion of the diet from taking only profitable prey to taking both types, and fixed partial pr...

Journal: :Cadernos de saude publica 2010
Teresa Cristina Miglioli Ana Maria de Brito Pedro Israel Cabral de Lira José Natal Figueroa Malaquias Batista Filho

Prevalence of anemia and associated factors were analyzed in mothers (n = 1,022) and their children under 5 years of age (n = 1,242) in Pernambuco State, Brazil, 2006. This was a cross-sectional population-based study with a probabilistic sample in an urban and rural area. Anemia was diagnosed by hemoglobin level (children < 11.0 g/dL, women < 12.0 g/dL) using HemoCue. Univariate and multivaria...

2005
Robin E. Crowe David W. Wright

This study examines the influence family structure (two parent or single parent) has on academic achievement as measured through student test scores. In addition, an alternative model comprised of student role performance, school, and other family factors is used to examine various influences on academic achievement. This study employs a secondary data analysis of the Educational Longitudinal S...

Journal: :JCP 2011
Dianxuan Gong Jincai Chang Chuanan Wei

Radial basis functions (RBF) provide powerful meshfree methods for multivariate interpolation for scattered data. RBF methods have been praised for their simplicity and ease of implementation in multivariate scattered data approximation. But both the approximation quality and stability depend on the distribution of the center set. It leads immediately to the problem of finding good or even opti...

Journal: :Ecology letters 2017
Shana M Sundstrom Tarsha Eason R John Nelson David G Angeler Chris Barichievy Ahjond S Garmestani Nicholas A J Graham Dean Granholm Lance Gunderson Melinda Knutson Kirsty L Nash Trisha Spanbauer Craig A Stow Craig R Allen

Research on early warning indicators has generally focused on assessing temporal transitions with limited application of these methods to detecting spatial regimes. Traditional spatial boundary detection procedures that result in ecoregion maps are typically based on ecological potential (i.e. potential vegetation), and often fail to account for ongoing changes due to stressors such as land use...

2017
Mataroria P Lyndon Marcus A Henning Hussain Alyami Sanjeev Krishna Tzu-Chieh Yu Andrew G Hill

Objective The purpose of this study was to determine the impact of a revised curriculum on medical student academic motivation, burnout, and quality of life. Methods This cross-sectional comparative study involved 2 medical school cohorts of second year and fourth year medical students at The University of Auckland: a cohort under a traditional curriculum (n = 437) and a cohort under a revise...

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