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...

The concept of the Spemann organizer has dominated our understanding of early vertebrate development. In amphibians, the organizer corresponds to a small dorsal sector of the gastrula marginal zone (~60°); if experimentally transplanted to the ventral region, these cells induce a complete ectopic axis in the recipient tissue (Spemann and Mangold, 1924). In molecular terms, the organizer functio...

The use of multimedia graphic organizer software and how it influenced the prewriting process for primary school children were evaluated. An analysis of writing samples generated by second-grade students with diverse writing abilities was carried out. Students were given two opportunities to participate in prewriting activities—one without and one with the use of multimedia graphic organizer so...

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...

The concept of the Spemann organizer has dominated our understanding of early vertebrate development. In amphibians, the organizer corresponds to a small dorsal sector of the gastrula marginal zone (~60°); if experimentally transplanted to the ventral region, these cells induce a complete ectopic axis in the recipient tissue (Spemann and Mangold, 1924). In molecular terms, the organizer functio...

This paper presents a first attempt of an application-driven evaluation exercise of WSD. We used a CLIR testbed from the Cross Lingual Evaluation Forum. The expansion, indexing and retrieval strategies where fixed by the organizers. The participants had to return both the topics and documents tagged with WordNet 1.6 word senses. The organization provided training data in the form of a pre-proce...

In this paper, a novel approach towards enabling the exploratory understanding of the dynamics inherent in the capture of customers’ data at different points in time is outlined. The proposed methodology combines state-of-art data mining clustering techniques with a tuned sequence mining method to discover prominent customer behavior trajectories in data bases, which — when combined — represent...

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...