Geometric morphometry is applied to discriminate the three species of stingless bees (Trigona (Tetragonula) iridipennis, Trigona (Tetragonula) aff. laeviceps and Trigona (Lepidotrigona) ventralis var. arcifera). The present study characterized the three species by using the relative wrap analysis, the three species forms three distinct groups and the Principal Component Analysis (PCA) explained...

The aim of this investigation was to determine, compare and evaluate three different computerized tracing programs, where the lateral cephalograms were digitized on the screen. 39 randomly selected cephalometric radiographs were used in the present study. Three programs Planmeca Romexis® (Romexis 3.2.0., Helsinki, Finland), Orthalis (France) and AxCeph (A.C 2.3.0.74, Ljubljana, Slovenia) were e...

This study examined the knowledge, attitudes, and perceptions of inclusive education pre-service teachers in Nigeria South Africa by surveying 217 Nigerian 266 African using a cross-sectional survey research design. A self-developed questionnaire was used for data collection. The pilot-tested among from public university Tanzania. Data were descriptively inferentially analysed (means standard d...

A canonical variance analysis (CVA) biplot can visually portray a oneway MANOVA. Both techniques are subject to the assumption of equal class covariance matrices. In the application considered, very small sample sizes resulted in some singular class covariance matrix estimates and furthermore it seemed unlikely that the assumption of homogeneity of covariance matrices would hold. Analysis of di...

Because of its importance in directing evolutionary trajectories, there has been considerable interest in comparing variation among genetic variance-covariance (G) matrices. Numerous statistical approaches have been suggested but no general analysis of the relationship among these methods has previously been published. In this study, we used data from a half-sib experiment and simulations to ex...

The current study aimed to investigate temporal processing in Chinese children with Attention-Deficit-Hyperactivity Disorder(ADHD) using time production, time reproduction paradigm and duration discrimination tasks. A battery of tests specifically designed to measure temporal processing was administered to 94 children with ADHD and 100 demographically matched healthy children. A multivariate an...

Synopsis Pygopodids are elongate, functionally limbless geckos found throughout Australia. The clade presents low taxonomic diversity (?45 spp.), but a variety of cranial morphologies, habitat use, and locomotor abilities that vary between within genera. In order to assess potential relationships morphology ecology, computed tomography scans 29 species were used for 3D geometric morphometric an...

Articles published in several prominent educational journals were examined to investigate the use of data-analysis tools by researchers in four research paradigms: between-subjects univariate designs, between-subjects multivariate designs, repeated measures designs, and covariance designs. In addition to examining specific details pertaining to the research design (e.g., sample size, group size...

We draw a random subset of [Formula: see text] rows from a frame with [Formula: see text] rows (vectors) and [Formula: see text] columns (dimensions), where [Formula: see text] and [Formula: see text] are proportional to [Formula: see text] For a variety of important deterministic equiangular tight frames (ETFs) and tight non-ETFs, we consider the distribution of singular values of the [Formula...