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126 articles for “multivariate”
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Research ArticleOpen accessIn the abstractIncome Statements Transparency and Firms' Characteristics of Companies Listed on the Bursa MalaysiaSazilah Mohd Saad, Syed Noh Syed Ahmad, Kamaruzaman Jusoff et al.Problem statement: This research was intended to contribute to the one of Corporate Governance mechanism on transparency and disclosure on the financial statements. Approach: As in the recent development of findings from Financial Statements Review Committee (FSRC) that company did not disclose of Material expenses and not classified accordingly. Results: This study provides an evidence for the transparency level on … …American Journal of Applied Sciences, Vol. 6, Issue 9 · 30 Sep 2009 · 7,527 accessesView PDFCite
Research ArticleOpen accessIn the abstractTwo-Step Robust Diagnostic Method for Identification of Multiple High Leverage PointsArezoo Bagheri, Habshah Midi, A.H.M. Rahmatullah ImonProblem statement: High leverage points are extreme outliers in the X-direction. In regression analysis, the detection of these leverage points becomes important due to their arbitrary large effects on the estimations as well as multicollinearity problems. Mahalanobis Distance (MD) has been used as a diagnostic tool for identification of outliers in multivariate analysis where it finds the distance between normal … …Journal of Mathematics and Statistics, Vol. 5, Issue 2 · 30 Jun 2009 · 8,306 accessesView PDFCite
Research ArticleOpen accessIn the abstractBorderline Personality Symptoms and Human Immunodeficiency Virus Risk in Alcohol and Other Drug Abusing Adolescent OffendersJessy G. Dévieux, Robert M. Malow, Rhonda Rosenberg et al.Problem statement: Incarcerated youth with borderline symptomatology represent a particularly at risk-population due to their enggement in risky behaviors. Five hundred twenty two adolescents were assessed for borderline symptomatology (MACI), engagement in risky behaviors and attitudes/knowledge. Approach:Adolescents were divided into two groups: low borderline (below the 60 scale score cutoff) and high borderline (subclinical and clinical range). Multivariate analyses were … …American Journal of Infectious Diseases, Vol. 5, Issue 1 · 31 Mar 2009 · 7,814 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Information Overload on Brazilian E-ConsumersRafael Lucian, Salomão Alencar de FariasProblem statement: E-commerce is a reality; Companies must consider this media as an important trade channel without distances between products and consumers. A key issue of e-commerce is how companies are disclosing information to its customers. This study aims to measure if there is relationship between the information overload in the virtual environment and the response of satisfaction and confusion … …American Journal of Economics and Business Administration, Vol. 1, Issue 1 · 31 Mar 2009 · 7,737 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Computational Optimized Extended Model for Mineral Potential Mapping Based on WofE MethodZiaii Mansour, Pouyan Ali, Ziaei MahdiThe multivariate fuzzy-c-means classifier is used to model extended weight of evidence (WofE) considering predictor maps. Approaches to mineral potential mapping based on WofE modeling generally use binary maps, whereas, real-world geospatial data are mostly multi-class or fuzzy-class in nature. The consequent reclassification of fuzzy-class maps into binary maps is a simplification that might result in a loss of information. … …American Journal of Applied Sciences, Vol. 6, Issue 2 · 28 Feb 2009 · 7,561 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparison of Estimators of Dispersion MatrixNarges AbbasiBased on a sample, we considered the problem of estimating the dispersion matrix of a multivariate normal distribution with variance covariance matrix Σ. Empirical Bayes estimators and Haff estimators with their conditions, two proposed estimators of Σ, were the best affine equivariant estimators of dispersion matrix, which we compared them by three different loss functions. …Journal of Mathematics and Statistics, Vol. 4, Issue 3 · 31 Dec 2008 · 6,732 accessesView PDFCite
Research ArticleOpen accessIn the abstractRisk Factors for Bacteremia and Predictors of Mortality of Patients with Bloodstream Infection with Methicillin-Resistant Staphylococcus aureusElcio Bakowski, Sérgio Barsantini Wey, Eduardo Alexandrino Servolo MedeirosThe objective of this study was to evaluate the incidence of infection and the risk factors associated to bacteraemia and mortality due to Methicillin-Resistant Staphylococcus Aureus (MRSA). This cohort study, conducted from August 2004 through November 2005, involved 60 consecutively identified patients with bloodstream MRSA infection. The control group included 240 non-infected patients, randomly selected and hospitalized on the day, … …American Journal of Infectious Diseases, Vol. 4, Issue 4 · 31 Dec 2008 · 6,951 accessesView PDFCite
Research ArticleOpen accessIn the abstractHIV/AIDS Prevention Knowledge among Youth in Cape Town, South AfricaKermyt G. Anderson, Ann M. BeutelHIV/AIDS knowledge is an important component of HIV/AIDS risk prevention strategies that may influence engagement in high risk behavior. This paper examines HIV/AIDS prevention knowledge among a representative sample of 4,174 youth living in Cape Town, South Africa. Data come from the Cape Area Panel Study (CAPS), and include black, coloured, and white respondents ages 14-22. Using an open-ended question, … …Journal of Social Sciences, Vol. 3, Issue 3 · 30 Sep 2007 · 9,219 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Acute-phase Reactants, Immunologic Markers and other Clinical and Laboratory Parameters in Patients with Pneumonia and Non-pneumonic Lower Respiratory Tract InfectionsJulio Collazos, María del Mar Martínez, Fernando IzquierdoMore efficacious tools to distinguish pneumonia from other acute lower respiratory tract infections (OALRTI) in facilities where radiologic studies are not easily or rapidly available are desirable to select the patients who should undergo chest radiographs, to avoid unnecessary visits to the emergency wards of hospitals and to optimize health resources. To this end we analyzed the relevance of many … …American Journal of Infectious Diseases, Vol. 3, Issue 1 · 31 Mar 2007 · 7,083 accessesView PDFCite
Research ArticleOpen accessIn the abstractVAR-models for Predicting BiodiversityTonio D. Bettista, S. A. Gattone, Mariagrzia GranturcoThe aim of this work is to introduce a methodology for monitoring diversity of a biological population by using the tool of diversity profiles. In particular, we develop a theory for studying the diversity profile along the temporal axis. We propose forecasting techniques for diversity profile by using the VAR model on multivariate time series of abundance vector and ARMA … …Journal of Mathematics and Statistics, Vol. 1, Issue 4 · 31 Dec 2005 · 6,175 accessesView PDFCite