Graphic organizers (GOs) are visual frameworks assisting students in the comprehension of a text. Studies in literature have mostly focused on L1 readers and there is a lack of empirical research about the instructional effects of GOs on L2 readers. The purpose of this research is to investigate the effects of GOs on reading comprehension achievement of EFL learners. An experimental design with...

According to development requirements, a standardized management system is mainly used in basic information files, file statistics and query management, lending management. Development files for that school personnel more efficient functions within the scope of work documents, archiving promoting improve level records staff, increase their strength, speed up on pace technology make efficient. T...

The Spemann organizer induces neural tissue, dorsalizes mesoderm and generates a second dorsal axis. We report the isolation and characterization of Smad10, which has all three of these Spemann activities. Smad10 is expressed at the appropriate time to transduce Spemann signals endogenously. Like the organizer, Smad10 generates anterior and posterior neural tissues. Smad10 appears to function d...

The effects of an advance organizer, a preview of text structure and two arrangements of text material on prose learning and delayed retention were investigated. Text material was preceded by either an advance organizer, a preview of structure, or a neutral control passage. Two text structures were developed: 1) a hierarchical structure; 2) a hierarchical and categorical structure. Subjects wer...

Many biomedical ontologies have now been developed, stimulated by the increasing importance of biomedical ontologies in the scientific community. Most ontology development efforts have required not only the participation of ontology engineers but also of domain experts. This should help the veracity of the domain knowledge, but not necessarily the engineering of the ontology. In fact, the quali...

BACKGROUND In amphibians, the Nieuwkoop center--a primary inducing region--has a central role in the induction of dorsal mesodermal cells to form the Spemann organizer. In teleosts, such as the zebrafish, Danio rerio, the functional equivalent of the amphibian Spemann organizer is the dorsal shield. Historically, a small region of the teleost yolk syncytial layer (YSL), an extraembryonic tissue...