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Asymptotic properties of statistical estimators using multivariate Chi-squared measurements
(Academic Press Inc Elsevier Science, 2020-08)
This paper studies the problem of estimating a parameter vector from measurements having a multivariate chi-squared distribution. Maximum likelihood estimation in this setting is unfeasible because the multivariate chi-squared ...
Improved score tests in symmetric linear regression models
(TAYLOR & FRANCIS INC, 2008)
The class of symmetric linear regression models has the normal linear regression model as a special case and includes several models that assume that the errors follow a symmetric distribution with longer-than-normal tails. ...
Divine proportions and facial esthetics after manipulation of frontal photographs.
(2007-06-01)
AIM: To investigate the relationship between divine proportion and facial esthetics in frontal photographs as well as whether any of the 4 ratios for manipulation provide more favorable facial esthetics. MATERIAL AND ...
Use of aspartate aminotransferase in diagnosing periodontal disease: a comparative study of clinical and microbiological parameters
(2003-03-01)
The objective of this study was to assess the association between the levels of enzyme aspartate aminotransferase (AST) in gingival crevicular fluid (GCF) with the BANA hydrolysis microbiological test (Perioscan) and ...
Use of aspartate aminotransferase in diagnosing periodontal disease: a comparative study of clinical and microbiological parameters
(2003-03-01)
The objective of this study was to assess the association between the levels of enzyme aspartate aminotransferase (AST) in gingival crevicular fluid (GCF) with the BANA hydrolysis microbiological test (Perioscan) and ...
Divine proportions and facial esthetics after manipulation of frontal photographs.
(2007-06-01)
AIM: To investigate the relationship between divine proportion and facial esthetics in frontal photographs as well as whether any of the 4 ratios for manipulation provide more favorable facial esthetics. MATERIAL AND ...
Root trunk height as a risk factor for periodontal furcation involvement in maxillary first molars: an in vitro study.
(2007-07-01)
The aim of this study was to correlate the root trunk height from the furcation openings on the buccal, mesial and distal surfaces to the cemento-enamel junction in upper first permanent molars in human beings with risk ...
Root trunk height as a risk factor for periodontal furcation involvement in maxillary first molars: an in vitro study.
(2007-07-01)
The aim of this study was to correlate the root trunk height from the furcation openings on the buccal, mesial and distal surfaces to the cemento-enamel junction in upper first permanent molars in human beings with risk ...
Influence of dental care for infants on caries prevalence: A comparative study
(2003-05-01)
Purpose: The influence of early dental care on the prevalence of dental caries was determined in children ages 35 to 40 months divided into 2 groups of 160 children each, with 1 group participating in a dental care program ...