structuring and manipulating hand-drawn concept maps

Concept maps are an important tool to knowledge organization,representation, and sharing. Most current concept map tools do not provide full support for hand-drawn concept map creation and manipulation, largely due to the lack of methods to recognize hand-drawn concept maps. This paper proposes a structure recognition method. Our algorithm can extract node blocks and link blocks of a hand-drawn concept map by combining dynamic programming and graph partitioning and then build a concept-map structure by relating extracted nodes and links. We also introduce structure-based intelligent manipulation technique of hand-drawn concept maps. Evaluation shows that our method has high structure recognition accuracy in real time, and the intelligent manipulation technique is efficient and effective.

Locomotor head movements and semicircular canal morphology in primates.

Animal locomotion causes head rotations, which are detected by the semicircular canals of the inner ear. Morphologic features of the canals influence rotational sensitivity, and so it is hypothesized that locomotion and canal morphology are functionally related. Most prior research has compared subjective assessments of animal "agility" with a single determinant of rotational sensitivity: the mean canal radius of curvature (R). In fact, the paired variables of R and body mass are correlated with agility and have been used to infer locomotion in extinct species. To refine models of canal functional morphology and to improve locomotor inferences for extinct species, we compare 3D vector measurements of head rotation during locomotion with 3D vector measures of canal sensitivity. Contrary to the predictions of conventional models that are based upon R, we find that axes of rapid head rotation are not aligned with axes of either high or low sensitivity. Instead, animals with fast head rotations have similar sensitivities in all directions, which they achieve by orienting the three canals of each ear orthogonally (i.e., along planes at 90° angles to one another). The extent to which the canal configuration approaches orthogonality is correlated with rotational head speed independent of body mass and phylogeny, whereas R is not.

Second Welland Canal - Book 3, Survey Map 5 - Old Canal and New Canal along Chippewa Creek in Port Robinson, Thorold Township

Survey map of the Second Welland Canal created by the Welland Canal Company showing the canal along Chippewa Creek in Thorold Township. Identified structures and features associated with the Canal include the towing path, float bridge, and the waterway itself. The surveyors' measurements and notes can be seen in red and black ink and pencil. Local area landmarks are also identified and include a road allowance between Lot 213 and 214, Chippewa Creek, an unnamed creek, and the Old Canal. Wetlands adjacent to Chippewa Creek are illustrated. Properties and property owners of note are: Lots 213 and 214, Samuel Hill, and Duncan Coleman. The boundary of the land deeded to Coleman is outlined in blue.

Lincoln and Welland Canal Mills - Vignette

A vignette of the Lincoln and Welland Canal Mills

Receipt from the St. Catharines and Welland Canal Gas Light Company

Receipt from the St. Catharines and Welland Canal Gas Light Company for gas rent, April 4, 1887.

Receipt from St. Catharines and Welland Canal Gas Light Company

Receipt from St. Catharines and Welland Canal Gas Light Company for gas rent, May 1, 1887.

Receipt from St. Catharines and Welland Canal Gas Light Company

Receipt from St. Catharines and Welland Canal Gas Light Company for gas rent, June 6, 1887.

Receipt from St. Catharines and Welland Canal Gas Light Company for gas rent

Receipt from St. Catharines and Welland Canal Gas Light Company for gas rent, July 4, 1887.

Receipt from St. Catharines and Welland Canal Gas Light Company for gas rent

Receipt from St. Catharines and Welland Canal Gas Light Company for gas rent, Sept. 3, 1887.

Receipt from St. Catharines and Welland Canal Gas Light Company for gas rent

Receipt from St. Catharines and Welland Canal Gas Light Company for gas rent, Dec. 31, 1887.

A Note on the periodic orbits and topological entropy of graph maps

This paper deals with the relationship between the periodic orbits of continuous maps on graphs and the topological entropy of the map. We show that the topological entropy of a graph map can be approximated by the entropy of its periodic orbits

Spin spaces and positive decomposition of linear maps on ordered Banach spaces

Spin factors and generalizations are used to revisit positive generation of B(E, F), where E and F are ordered Banach spaces. Interior points of B(E, F)+ are discussed and in many cases it is seen that positive generation of B(E, F) is controlled by spin structure in F when F is a JBW-algebra.

Intracanal dressing and root canal filling materials in tooth replantation: a literature review

The prognosis of tooth replantation is usually related to the need of endodontic treatment, which has a direct relationship with the occurrence of root resorptions. Several studies have been undertaken in an attempt to prevent, delay, or treat these complications, which are the main causes of loss of replanted teeth. This literature review examines research evidence on intracanal dressings and root canal filling materials used in cases of tooth replantation. A comprehensive search was performed in the Medline/Pubmed, Bireme and Scielo full-text electronic journal databases to retrieve English-language articles referring to these topics that had been published between 1964 and 2010. Calcium hydroxide (CH) remains the usually recommended choice as an intracanal medicament in replanted teeth; however, there is evidence to support the initial use of a corticosteroid-antibiotic combination such as Ledermix paste to control potential early resorption, prior to the introduction of CH where the beneficial effect in the treatment of progressive root resorption has been well proven. Regarding root filling materials, CH-containing sealers are a good option because of their biological properties. Accurate diagnosis and adequate treatment plan may constitute very complex tasks, particularly in tooth avulsion because several variables are involved. In addition to the technical knowledge and clinical experience directed toward the quality of treatment, patient education may favorably influence the survival of replanted teeth.

Effect of filling technique and root canal area on the percentage of gutta-percha in laterally compacted root fillings

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)