Structural equation models are very common in medical, social, management and behavioral sciences where researchers established some causal relations between observed variables latent variable. In structured populations the assumption of independence observations is often violated had been ignored by researchers. As a result with correlated structure error terms, biased estimates parameters hav...

Niðurstöður íslenskra rannsókna benda til að leikskólabörn með annað heimamál en íslensku, ísl2 börn, nái almennt ekki góðum tökum á íslensku þrátt fyrir langan dvalartíma í leikskólum. Því er mikilvægt kanna hvert viðhorf leikskólastarfsmanna þess hlutverks þeirra gefa börnum tækifæri læra fjölbreytilegum leiðum. Markmið rannsóknarinnar var þekkingu, reynslu og faglegt sjálfstraust málörvunar ...

introduction: recent use of lasers for porcelain surface treatment for adhesion of brackets to restorations has not only showed some promising results, but is also accompanied with less undesirable effects among other advantages. the purpose of this study is the comparative electron microscope evaluation of feldspathic porcelain surfaces under irradiation by neodymium-doped yttrium aluminium ga...

Elevated postprandial glycaemia has been linked to CVD in a number of different epidemiological studies involving predominantly non-diabetic volunteers. The MiniMed continuous glucose monitor, which measures blood glucose every 5 min, over a 24 h period, was used to investigate changes in blood glucose readings before and after instigating a diet with low glycaemic index (GI) for 1 week in free...

introduction: the purpose of this study was to evaluate the morphologic surface of gutta­percha cones after cutting with different methods. materials and methods: the apical 3 millimeters of forty standardized, gutta-percha cones size 40 were cut off using scissors or a scalpel against a glass slab. the samples were then examined under scanning electron microscopy (sem) for topographic deformit...

symptoms of the leaf scorch disease on the leaves of oleander infected by xylella fastidiosa appearing for the first time in lebanon were confirmed by elisa tests and anatomical observations of sections of petioles by a scanning electron microscope. xylella fastidiosa was detected in the xylem forming bacterial aggregates in the lumen of tracheary elements. the bacterium colonizes and invades t...