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Nomenclatura Unesco > (12) Matemáticas

Mostrando recursos 101 - 120 de 32,523

101. Prática de ensino supervisionada em Ensino do 1º e do 2º Ciclo do Ensino Básico - Lopes, Adriana Filipa Alves
O presente relatório tem como objetivo refletir sobre a ação educativa desenvolvida no âmbito da Prática de Ensino Supervisionada, nos contextos do 1.º e 2.º Ciclo do Ensino Básico. A prática decorreu num Agrupamento de escolas na cidade de Bragança, numa turma do 1.ºano do 1.º ciclo do ensino básico0 e em quatro turmas diferentes no 2.º ciclo do ensino básico, nas áreas de História e Geografia de Portugal e Português em duas turmas do 5.ºano e nas áreas disciplinares de Matemática e Ciências da Natureza em duas turmas do 6.º ano de escolaridade. Apesar do relatório refletir todo o trabalho...

102. on-line ISSN 1974-305X - La Matematica; Hilbert Schemes; F. Galluzzi; F. Vaccarino; Quaderni Del; Direttore Claudio Canuto; Comitato Editoriale N. Bellomo; C. Canuto; G. Casnati; M. Gasparini; R. Monaco; G. Monegato; G. Pistone; S. Salamon; E. Serra; A. Tabacco; Federica Galluzzi Francesco
e le sue Applicazioni

103. Mass in Quantum Yang-Mills Theory - Sociedade Brasileira De Matemática; L. D. Faddeev; L. D. Faddeev
— Dedicated to IMPA on the occasion of its 50th anniversary Abstract. The Clay Millenium Problem on the mass gap for the Quantum Yang-Mills Field Theory is commented upon. Particular emphasis is put on the importance of the dimensional transmutation after the quantisation.

104. Monografías del Seminario Matemático García de Galdeano 33, 425–432 (2006) ANALYSIS OF A CONSERVATION LAW WITH SPACE-DISCONTINUOUS ADVECTION FUNCTION - Julien Jimenez
Abstract. We consider the scalar conservation law in one space dimension: ∂tu+∂x(k(x)g(u)) = 0, (1) associated with a bounded initial value u0. We suppose that the function k is bounded, discontinuous at x0 = 0, and has bounded variations. When k is piecewise-constant, the definition of a weak entropy formulation for the Cauchy problem has been introduced by J. D. Towers in [7]. In [6] the existence and the uniqueness is proved by regularisation of the function k. We generalize the definition of J.D Towers and we adapt the method introduced in [6] to establish an existence and uniqueness property...

105. Curves of genus 3 - James Hirschfeld
1 Questions about curves (i) What is meant by the ‘number of points ’ on a curve? (ii) What is the number of points on a curve that can occur, given some parameters such as q, the size of the field, g, the genus of the curve, n, the degree of a plane curve? (iii) What is the maximum number of points? (iv) Find curves with certain parameters. (v) Classify the curves with a set of these parameters. 2 Starting point M.J. de Resmini Sulle quartiche piane sopra un campo di caratteristica due Ricerche di Matematica 19 (1970), 133–160 How...

106. ON COMMON FIXED POINTS OF COMPATIBLE MAPPINGS IN METRIC AND BANACH SPACES - S. Sessa; Facolta Di Architettura; Istituto Matematico; Via Monteoliveto; B. E. Rhoades; King Abdul
ABSTRACT. We prove a number of results concerning the existence of common fixed points of a family of maps satisfying certain contractive conditions in metric and Banach spaces. Results dealing with the stucture of the set of common fixed points of such maps are also given. Our work is an improvement upon the previously known results. KEY WORDS AND PHRASES. Asymptotically regular sequence, Common fixed point, compatible mappings, Strictly convex Banach space.

107. Hochschild cohomology of smash products and rank one Hopf algebras,” Biblioteca de la Revista Matematica Iberoamericana Actas del ”XVI Coloquio Latinoamericano de Algebra - S. M. Burciu; S. J. Witherspoon
Abstract. We give some general results on the ring structure of Hochschild co-homology of smash products of algebras with Hopf algebras. We compute this ring structure explicitly for a large class of finite dimensional Hopf algebras of rank one. 1.

108. Infimum–supremum - F. J. Sayas; Infimum Supremum; F. –j. Sayas
“garcia de galdeano” garcía de galdeano seminario matemático n. 10 PRE-PUBLICACIONES del seminario matematico 2007

109. Aerenchyma formation - Facultad De; Ciencias Físicas; Y Matemáticas; Universidad De Chile
In this document, authors will find instructions for preparing their articles according to the format required for the proceedings.

110. Descubrimiento del valor posicional a través de la resolución de problemas - Ramírez García, Mónica; De Castro Hernández, Carlos
Estudiamos la comprensión de la decena en un contexto de resolución de problemas, con alumnos de primer curso de educación primaria. Para ello, planteamos problemas de estructura multiplicativa, con grupos de diez, cuya estrategia óptima de resolución implica el conocimiento del valor posicional de números de dos cifras. Los problemas se realizan en un taller semanal a lo largo de todo el curso. Recogemos datos mediante vídeo, entrevistas, hojas de registro y fotografías. En los resultados, destaca la preferencia de los alumnos por el uso de estrategias informales de modelización directa. En menor medida, los niños van incorporando los algoritmos,...

111. Publicaciones de la facultad de ciencias fısicas, matemáticas y astronómicas. - Universidad Nacional de la Plata. Facultad de Ciencias Físicas, Matemáticas y Astronómicas.
Mode of access: Internet.

112. $rec.titulo - Buletinul Academiei; A Republicii; Moldova Matematica
On determining the minimum cost flows in dynamic networks ∗

113. Xbox360-Kinect: herramienta tecnológica aplicada para el desarrollo de habilidades matemáticas básicas, en alumnos de segundo grado de Educación Básica en México - Martínez, Sandra Ivonne Nieto; Heredia Escorza, Yolanda; Díaz, Bertha Yvonne Cannon
This article shares the findings of a study that explored the use of the Xbox360Kinect game console and the Body and Brain Connection videogame in an educational setting in Mexico to support 2nd grade students in the development of addition and subtraction skills. The study followed a quantitative approach with a quasiexperimental design where participants in the experimental group received a treatment consisting in four different play modalities of the Body and Brain Connection videogame for the Xbox360Kinect game console; the control group, in contrast, was not exposed to the videogame. Impact of the experimental treatment on basic math skills was measured through the addition and subtraction subtests in the Comprehensive...

114. Métodos computacionales en toxicología predictiva: aplicación a la reducción de ensayos con animales en el contexto de la legislación comunitaria REACH - Gozalbes, R.; de Julián Ortiz, J.V.; Fito-López, C.
Los métodos de química informática y modelado molecular han sido utilizados desde hace décadas para la selección y optimización de nuevos compuestos con propiedades terapéuticas. Su aplicación en toxicología predictiva es más reciente, y dadas las nuevas necesidades regulatorias impuestas por la normativa europea REACH, estas técnicas gozan actualmente de un interés creciente. En efecto, el reglamento REACH supone a priori la necesidad de una cantidad ingente de ensayos con animales para demostrar la seguridad de los nuevos compuestos químicos sometidos a registro, ensayos que pueden reducirse mediante el uso de métodos alternativos como los estudios in vitro e in silico, siempre que cumplan ciertas condiciones específicas que garanticen su calidad...

115. Lenguaje, lógica y matemáticas - Harris, Zellig Sabbetai

116. © 2000, Sociedade Brasileira de Matemática Kodaira dimension of holomorphic singular - Luís Gustavo
foliations

117. CONFIDENCE CRISES, CREDIBILITY AND THE INFLATION TARGET LEVEL - Aloisio Araujo; Rafael Santosy
Considering the ination targeting regime, we appraise how the target level should be set in the presence of uncertainty about the commitment strength. First, based on a concise framework, where condence crises and imperfect information are neglected, we conclude that a higher target for ination increases the credibility in the precommitment. Optimal target is higher than the one obtained using the Cukierman-Liviatan [5] model, where the increasing credibility effect is not considered. Second, extending the model to make condence crises possible, multiple equilibria solutions become possible too. In this case, higher targets for ination may increase the probability of above...

118. Monografías del Seminario Matemático García de Galdeano 33, 387–394 (2006) ANALYSIS OF A COUPLED PARABOLIC-HYPERBOLIC PROBLEM - G. Aguilar; L. Lévi; M. Madaune-tort
Abstract. This paper deals with the mathematical analysis of a quasilinear parabolic-hyperbolic problem in a multidimensional bounded domain Ω. In a region Ωp a diffusion-advection-reaction type equation is set while in the complementary Ωh ≡ Ω \Ωp, only advection-reaction terms are taken into account. To begin we provide the definition of a weak solution through an entropy inequality on the whole domain. Since the interface ∂Ωp∩∂Ωh contains outward characteristics for the first-order operator in Ωh, the unique-ness proof starts by considering first the hyperbolic zone and then the parabolic one. The existence property uses the vanishing viscosity method and to...

119. $rec.titulo - Herminia I. Calvete; Carmen Galé; Herminia I. Calvete
“garcia de galdeano” garcía de galdeano seminario matemático n. 5 PRE-PUBLICACIONES del seminario matematico 2004

120. N.Gorgorió, N. Planas 1 TRANSITIONS: FROM BACKGROUND TO FOREGROUND1 - Núria Gorgorió; Núria Planas
Abstract: We interpret immigrant students ’ learning experience as a transition process between contexts of mathematical practice. Transition processes can be studied through the analysis of the different meanings that the individuals participating in the classroom attach to the various moments in the classroom dynamics. Despite all the differences, there is a common trait to be achieved among all the students: their willingness to actively participate in their own process of learning mathematics. We discuss how concepts such as transition process, norms, negotiation and communication relate to the idea of participation that guides our search for commonalities. In our discussion,...

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