Structural equation modeling (SEM) provides a dependable framework for testing differences among groups on latent variables (constructs, factors). The purpose of this article is to illustrate SEM-based testing for group mean differences on latent variables. Related procedures of confirmatory factor analysis and testing for measurement invariance across compared groups are also presented in the ...

The Nanorobotics series developed by Klocke Nanotechnik extend Scanning Electron or Ion Microscopes to material processing systems. The included automation allows the whole field of handling, assembly and manufacturing like known from a normal desktop system – now with nano-precision, including various kinds of image generation by using different sensors. Applications are in the field of Materi...

Um mundo sem livros e livrarias? é o título do livro mais recente de Roger Chartier, lançado no Brasil pela Editora Letraviva. Coordenado por Guiomar Grammont, que escreve também prefácio, a obra reúne artigos conferências pesquisas desse conhecido autor francês. O contém seis capítulos — maioria escrito em português epílogo com análises publicadas recentemente nos mercados editoriais francês, ...

Tasks employing parametric variation in movement rate are associated with predictable modulations in neural activity and provide a convenient context for developing new techniques for system identification. Using a multistage approach, we explored the functional and effective connectivity of a visuomotor control system by combining generalized partial least squares (gPLS) with subsequent struct...

this study was conducted to extract first, the underlying factors of home culture attachment scale (hcas) and second, to confirm these factors via structural equation modeling (sem) analysis. to meet this end, the scale was distributed to 374 english language learners in private language institutes in mashhad, iran. to determine the construct validity of the scale, exploratory factor analysis (...

A bacterial cloning system for mapping and analysis of complex genomes has been developed. The BAC system (for bacterial artificial chromosome) is based on Escherichia coli and its single-copy plasmid F factor. It is capable of maintaining human genomic DNA fragments of greater than 300 kilobase pairs. Individual clones of human DNA appear to be maintained with a high degree of structural stabi...

Death during autoerotic episodes is of special concern to law enforcement officials, the coroner or medical examiner, the family of the decedent, and to society as a whole. As in the probing of any violent demise, accurate preservation of all evidentiary material, complete photographic documentation, reconstruction of the scene, and interviews with family and acquaintances ("psychological autop...