9 research outputs found
Clinico-Statistical Study Concerning the use of Classical Orthodontic Appliances Among Orthodontists
Objective: The purpose of this study was to establish a statistics on the contemporary use of classical mobile orthodontic appliances, anchorage means and certain procedures (functional exercises) among orthodontic specialists. Material and Methods: The present study was based on a questionary comprising 15 questions addressed to 55 postgraduate, specialist and senior orthodontists concernig the use of classical orthodontic methods. The questionary was delivered online by means of Google Forms and intermediated by the National Dentists‘ Association of Tirgu Mures, Romania. The sole inclusion criteria was the specialty of orthodontics. Results: 92,7% of the orthodontists use removable appliances (palatal plate with expansion screw), 90,9 % recommend functional exercises (correct palatal tongue placement), 89,1% exploit space maintainers, 87,3% provide lingual cribs for functional reeducation, 80% apply functional devices and the Goshgarian arch as an anchorage method, 72,2% use the Delaire mask and 69,8% the headgear and 58,2 apply the Hawley plate as a contention mean. Conclusions: A very high percentage of resident, specialist and senior doctors utilize classical removable and functional appliances and methods
Rational swept surface constructions based on differential and integral sweep curve properties
A swept surface is generated from a profile curve and a sweep curve by employing the latter to define a continuous family of transformations of the former. By using polynomial or rational curves, and specifying the homogeneous coordinates of the swept surface as bilinear forms in the profile and sweep curve homogeneous coordinates, the outcome is guaranteed to be a rational surface compatible with the prevailing data types of CAD systems. However, this approach does not accommodate many geometrically intuitive sweep operations based on differential or integral properties of the sweep curve - such as the parametric speed, tangent, normal, curvature, arc length, and offset curves - since they do not ordinarily have a rational dependence on the curve parameter. The use of Pythagorean-hodograph (PH) sweep curves surmounts this limitation, and thus makes possible a much richer spectrum of rational swept surface types. A number of representative examples are used to illustrate the diversity of these novel swept surface forms - including the oriented-translation sweep, offset-translation sweep, generalized conical sweep, and oriented-involute sweep. In many cases of practical interest, these forms also have rational offset surfaces. Considerations related to the automated CNC machining of these surfaces, using only their high-level procedural definitions, are also briefly discussed
ChemInform Abstract: Exo- and Endohormones. Part 21. Stereoselective Synthesis of the Four Isomers of the 4,7-Tridecadien-1-yl Acetate. (4E,7Z)-4,7-Tridecadien-1-yl Acetate, the Sex Pheromone of the Leafminer Moth Phylonorycter corylifoliella.
ChemInform Abstract: Exo- and Endohormones. Part 24. A Convenient Synthesis of (Z)-11-Tetradecen-1-yl Acetate, Component of Lepidoptera Insect Sex Pheromone.
ChemInform Abstract: Exo- and Endohormones. Part 15. Synthesis of E-10-Dodecen-1-yl Acetate, the Sex Pheromone for the Spotted Tentiform Moth Lithocolletis blancardella.
ChemInform Abstract: Exo- and Endohormones. Part 19. Synthesis of Z-10-Dodecen-1-yl Acetate. Component of Some Lepidopteran Insect Sex Pheromones.
Valores y educación emocional en las aulas de Educación Primaria
Este Trabajo de Fin de Grado, primeramente, intenta reflejar la necesidad inminente de
cambio en el sistema educativo y social. Para lo cual propone que se comience a educar
en valores y en el desarrollo de la inteligencia emocional, como parte fundamental del currículum en la asignatura “Inglés”. Utilizando el Mindfulness (atención plena) como técnica principal; y el aprendizaje colaborativo y el enfoque por tareas, como metodología. Además de una asistencia constante por parte del profesorado a las necesidades de cada momento, aprovechando las situaciones cotidianas del aula para mejorar la calidad del desarrollo integral del alumnado. Con esta propuesta y los resultados obtenidos en las encuestas diseñadas para este trabajo, se intenta demostrar la utilidad de la misma y la posibilidad de aplicarlo a las aulas de nuestro país.Grado en Educación Primari