Informe Final Fase 3 - Estimació Bossa Tipus de Catalunya
- Aluja Banet, Tomàs; Montero Mercadé, Lídia
Projecte de l’Agència de Residus de Catalunya (ARC, en endavant) encarregat a la Universitat
Politècnica de Catalunya
, segons Conveni de 5 de Novembre del 2012.
L’objecte d’aquest projecte és proveir la
per a l
de la generació de
residus per habitant a Catalunya i la seva
a tipologia d’unes 16 categories,
, així com donant les mesures de
Aquest Conveni és
egat durant els anys 2008 i 2009, el qual establí el disseny
a efectuar i la quantificació prèvia de la seva variabilitat. El C
onveni precedent es
concretava en dues fases, Fase 1 i 2, pel que el Conveni actual es presenta com
a Fase 3,
de les prèvies
From clutters to matroids
- Martí Farré, Jaume
Monografías del Seminario Matemático García de Galdeano 33, 67–74 (2006) PERIODIC ORBITS AROUND SIMPLE SHAPED BODIES
- Fernando Blesa
Abstract. The study of periodic orbits is a very important discipline in dynamical sys-tems. In this paper we are interested in analyzing the dynamics of a particle around simple planar plates. We present several families of periodic orbits in the plane of these plates.
La vida como juego existencial. Ensayitos. Carlos Arturo Ramírez (2012)
- Ospina, Juan Felipe
Carlos Arturo Ramírez es profesor jubilado de la
Universidad de Antioquia. Su desempeño acadé-
mico contempla áreas como las matemáticas,
el psicoanálisis, la psicología y la educación. El
libro suyo que presentamos a continuación es
producto de una escritura llevada a cabo durante
muchos años, un ejercicio de pensamiento y
de reflexión orientado por su experiencia vital,
tanto pública como privada.
Comparación de los modelos respuesta graduada y crédito parcial aplicados a una escala de utilidad de la matemática
- Abal, Facundo Juan Pablo; Galibert, María Silvia; Aguerri, María Ester; Attorresi, Horacio Félix
The Graded Response Model (GRM) and the Partial Credit Model (PCM) of Item Response Theory (IRT) were applied in the item analysis of a scale that evaluates psychology students's beliefs about the usefulness of mathematics. The scale comprises 8 items in polytomous response format (6-point Likert-type). The sample was made up by 1875 students of the Psychology school of the University of Buenos Aires. All analyses based on IRT were performed by operating the MULTILOG software. The parameters estimation was carried out trough Marginal Maximum Likelihood procedures. Previously, the unidimensionality assumption required by the models was confirmed. The GRM showed...
Un esquema para analizar los enunciados de los estudiantes en contextos de invención de problemas
- Espinoza-González, Johan; Lupiáñez-Gómez, Jose-Luis; Segovia Alex, Isidoro
The problem posing is considered as an important activity in the formation of mathematical skills of students, so they have made efforts to study it as a process of instruction in math classes; however, few investigations addressed strategies designed to assess student productions at this type of task. Thus, the construction and implementation of a analyses scheme that was used in a broader research study that aimed to characterize the arithmetic performance of a group of talented students in mathematics is presented. To do an analysis of the study variables of arithmetic problems and a study of the tools used...
Aplicación de Actividades de modelización matemática en la educación secundaria costarricense
- Porras Lizano, Karen; Fonseca, Jennifer
This paper describes the experience gained in implementing mathematical modeling activities as a methodological strategy in teaching issues such as proportions, with a group of eighth year of an academic-day-school, located in the province of San Jose, Costa Rica in 2012. Different techniques for gathering information were applied, such as participant observation and questionnaires. Among the relevant results are the cyclical development of mathematical thinking of students in the stages of mathematical modeling (description, manipulation, prediction and validation) for solving the problem; developing of teamwork skills; and appreciation of mathematics as a useful and effective discipline. To resolve the activities...
Proyecto educativo Matemática para la enseñanza media (MATEM), su quehacer académico durante el año 2012: Perspectiva de los participantes
- Alfaro Arce, Ana Lucía; Alpízar Vargas, Marianela; Loría Fernández, José Romilio
"MATEM" is a university outreach project. Among its objectives is to improve the mathematics education at the high school level and to accomplish it public universities work together with high school´s teachers and students. The study´s aim was to research various aspects of MATEM Project to order to evaluate its development and consider recommendations for making decisions. This paper summarizes the perceptions of high school students enrolled during 2012 in courses Precalculus and Calculus, moreover the opinion of mathematics teachers. The main results were that MATEM is an academic activity attractive for math teachers and student population from different regions...
Dificultades en el aprendizaje de problemas que se modelan con ecuaciones lineales: El caso de estudiantes de octavo nivel de un colegio de Heredia
- Chavarría Arroyo, Gilberto
The current article presents the results of a study that aimed to analyze the difficulties faced by eighth grade students when learning to solve algebraic problems based on linear equations with one unknown variable. The participants were learners with low average performance in mathematics at a high school in Heredia. The research followed a naturalistic paradigm and the case study method with a qualitative approach. Different techniques like class observations, questionnaires to students, non-structured interviews to teachers and interviews to the learners were applied. The research helped to identify the main causes of difficulty when learning to solve algebraic problems....
Un modelo pedagógico para desarrollar el potencial de estudiantes talentosos en matemática en Costa Rica
- Díaz Obando, Evangelina; Alemán Castillo, Hazel; Hernández Brenes, Carmen
The purpose of this article is to share an experience on the construction of a pedagogical model that allows high school gifted students to develop mathematical power. This model was designed with the intention to offer an alternative to mathematics teachers, so they can teach these students more efficiently. Most of the time, these students are left out in a mathematics classroom. The intention with this model was to generate a learning environment where all students could develop their intellectual potential, in mathematics. This research was conducted in a public high school, located in San José, Costa Rica. It was...
Investigación educativa e investigación en educación matemática
- Castillo Sánchez, Mario; Gamboa Araya, Ronny
This report corresponds to a literature review whose aims to present the point of view of different authors on the concept of Education, to establish the relationship between Science Education, Pedagogy and Education as well as to show the role that of the philosophy of Education in this process. It also analyze the role of research in the field of Education and Mathematics Education. In this context, education is conceived as an ongoing and dynamic process that gives tools for personal fulfillment and his conscious insertion in a social world by promoting rules, behaviors, knowledge, school content and values, among...
Percepción de una muestra de profesores de matemáticas sobre la formación recibida en la universidad
- Chaves Esquivel, Edwin
The main objective of this study was to determine the perception of a sample of 249 mathematics teachers regarding the training received in their university. We identified strengths and weaknesses of the academic programs that train teachers of mathematics in the country, according to the teachers. The sample included educators trained in public and private universities, working at different educational regions of the country. The information was gathered through a questionnaire. Overall, educators perceive training in theoretical mathematics as the main strength. However, according to the scale used, all other aspects related to the formation process of a math teacher...
El proyecto matemática para la enseñanza media (Matem-UNA): percepción de los estudiantes sobre los cursos recibidos y las carreras en educación superior que eligieron
- Alfaro Arce, Ana Lucía; Alpízar Vargas, Marianela
This paper summarizes the opinions of students who have enrolled in the Precalculus course offered by the MATEM project. The aim is to systematize the views expressed by the students enrolled in MATEM, which are related to general aspects of the project, and also to know the professional areas these students select when entering to the university. The information for this study was collected through two questionnaires administered to the participating students during 2005-2009. The most relevant results are the following: the students listed benefits from MATEM such as the opportunity to practice for their Mathematics test (Ministry of Education...
La realidad de estudiantes de secundaria con adecuación curricular no significativa en matemática
- Chavarría Arroyo, Gilberto; Díaz Obando, Evangelina
The purpose of this research was to gain knowledge about expectations, feelings, and perspectives of students with special needs in mathematics, in a high school context, to create a profile of these students. The focus of this research was placed on six students from eleventh grade that have this condition. The institution selected was a public academic high school, in the state of Heredia. The method used to collect and to analyze data was a case study. The main techniques included: class observation, a questionnaire, unstructured interviews to the teacher and to students, and clinical interviews for students with special...
Formación de Docentes de Matemática: Aspectos Relevantes
- Fonseca, Jennifer; Castillo Sánchez, Mario
The type of knowledge and experiences that mathematics teachers need to develop as part of their initial training, has been a subject of controversy and discussion. This article aims to make a literature review of the most significant theoretical issues that have been made in this area, as well as the national trends, according to some authors. Inputs presented here, summarizes important findings that has contributed during the past four decades. It is expected that the results generate reflections among the educational community at Costa Rica on the topic and help in guiding the curriculum of mathematics teacher training of...
Eventos extremos en sistemas complejos con retardo temporal
- Aparicio Reinoso, José María
A lo largo de la tesis estudiamos 2 sistemas complejos donde el retardo temporal juega un papel importante. En el primero de ellos estudiamos la evolución temporal de una enfermedad infecciosa emergente, el Síndrome Pulmonar por Hantavirus, a partir de la dinámica poblacional de un roedor, el ratón ciervo. Para ello desarrollamos un nuevo modelo matemático que estudiamos tanto en su vertiente heurística y determinista, como a través de sus fluctuaciones o de su propagación espacial. En el segundo modelo estudiamos un dispositivo láser, que consta de un láser semiconductor y una cavidad externa resonante. Este dispositivo está descrito por...
[pt] ANEXO 18 À ATA DA 445ª REUNIÃO: POSTA DE REFORMA CURRICULAR DO CURSO DE GRADUAÇÃO - BACHARELADO - EM MATEMÁTICA
- DECANATO DO CTC
[pt] Proposta de reforma curricular do Curso de Graduação - bacharelado - em Matemática.
On Bruck-Belousov Problem
- Buletinul Academiei; A Republicii; Moldova Matematica; Victor Shcherbacov
Abstract. In this paper on the language of subgroups of the multiplication group of a quasigroup (of the associated group of a quasigroup) necessary and sufficient conditions of normality of congruences of a left (right) loop are given. These conditions can be considered as a partial answer to the problem posed in books of R. H. Bruck and V.D. Belousov about conditions of normality of all congruences of quasigroups. Results on the regularity of congruences of quasigroups and the behavior of quasigroup congruences by isotopy are given.
On some Hypergroups and their Hyperlattice Structures
- Buletinul Academiei; A Republicii; Moldova Matematica; G. A. Moghani; A. R. Ashrafi
Abstract. Let G be a hypergroup and L(G) be the set of all subhypergroups of G. In this survey article, we introduce some hypergroups G from combinatorial structures and study the structure of the set L(G). We prove that in some cases L(G) has a lattice or hyperlattice structure. Mathematics subject classification: 20N20.
- Buletinul Academiei; A Republicii; Moldova Matematica; N. Gashitsoi
On a criterion of normality for mappings