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Search Results: 1 - 10 of 9463 matches for " Verónica; Otero "
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Organizaciones Matemáticas en la Universidad en torno a las nociones de límite y continuidad de funciones: un estudio de caso
Parra,Verónica; Otero,Maria Rita;
Revista electr?3nica de investigaci?3n en educaci?3n en ciencias , 2007,
Abstract: this work describes the mathematical organizations (om) around the concepts of limit and continuity of functions that coexist at the university. this work is a case study based on the mathematical analysis applied to economy and administration in the first university level in this area. it is a descriptive investigation using the anthropological theory of didactic (tad) (chevallard; 1992, 1997.1999, 2000). the existence of punctual and rigid mathematical organizations and the existence of phenomenon of the thematic autism also in the university are concluded. this didactic fact, don't show a rupture between secondary education and university education, therefore indicates continuity, at least in this institution.
Organizaciones Matemáticas en la Universidad en torno a las
Parra Verónica,Otero Maria Rita
Revista electr?3nica de investigaci?3n en educaci?3n en ciencias , 2007,
Abstract: This work describes the Mathematical Organizations (OM) around the concepts of limit and continuity of functions that coexist at the University. This work is a case study based on the Mathematical Analysis applied to Economy and Administration in the first university level in this area. It is a descriptive investigation using the Anthropological Theory of Didactic (TAD) (Chevallard; 1992, 1997.1999, 2000). The existence of punctual and rigid Mathematical Organizations and the existence of phenomenon of the thematic autism also in the University are concluded. This didactic fact, don’t show a rupture between secondary education and universityeducation, therefore indicates continuity, at least in this institution.
Organizaciones Matemáticas que se estudian en la Universidad en torno a la noción de Función: un estudio de caso
Verónica,Parra; Otero,Maria Rita; Elichiribehety,Ines;
Revista electr?3nica de investigaci?3n en educaci?3n en ciencias , 2006,
Abstract: this work analyses mathematics teaching at university level. a case study on the maths analysis discipline and its applications in the field of economy was carried out. anthropological theory of didactics (atd) (chevallard, 1992, 1997, 1999) is used for analyzing and characterizing mathematical organizations (mo) which coexist in this institution and the didactic organizations (do) developed by professor during the study of those mo. no participatory observation has been carried out for a long period of time in two class groups. the sessions considered on this occasion are the ones referred to functions. the mo related to a function are described analyzing continuities and breaks between its components and its consolidation in the evaluation stage. didactic organizations (do) related to mathematical organizations (mo) in question are also characterised.
Organizaciones Matemáticas que se estudian en la Universidad en torno a la noción de Función: un estudio de caso
Parra Verónica,Otero, Maria Rita,Elichiribehety, Ines
Revista electr?3nica de investigaci?3n en educaci?3n en ciencias , 2006,
Abstract: This work analyses Mathematics teaching at University level. A case study on the Maths Analysis discipline and its Applications in the field of Economy was carried out.Anthropological Theory of Didactics (ATD) (Chevallard, 1992, 1997, 1999) is used for analyzing and characterizing Mathematical Organizations (MO) which coexist in this Institution and the Didactic Organizations (DO) developed by Professor during the study of those MO. No participatory observation has been carried out for a long period of time in two class groups. The sessions considered on this occasion are the ones referred to Functions. The MO related to a Function are described analyzing continuities and breaks between its components and its consolidation in the evaluation stage. Didactic Organizations (DO) related to Mathematical Organizations (MO) in question are also characterised.
Reconstrucción de una Organización Matemática de referencia para el estudio del límite y la continuidad de funciones en la Universidad
Parra,Verónica; Otero,Maria Rita; Fanaro,María de los ángeles;
Revista electr?3nica de investigaci?3n en educaci?3n en ciencias , 2009,
Abstract: in this work a mathematical organization (mo) of reference relative to the notions: limit and continuity of real functions is reconstructed and described. it is proposed for an economical and administration calculus course, in the first year at university. the adopted theoretical frame is the anthropological theory of didactic (atd) (chevallard, 1999, 2001). the mathematical, social, and cultural sense (bosch et. al., 2006) of this om of reference is described. finally, the practical-technical and technological-theoretical components of the om are detailed; this is, the types of tasks, the mathematical techniques, the technologies and theory
Reconstrucción de una Organización Matemática de referencia para el estudio del límite y la continuidad de funciones en la Universidad
Parra,Verónica,Otero,Maria Rita,Fanaro; María de los ángeles
Revista electr?3nica de investigaci?3n en educaci?3n en ciencias , 2009,
Abstract: In this work a Mathematical Organization (MO) of reference relative to the notions: limit and continuity of real functions is reconstructed and described. It is proposed for an Economical andAdministration Calculus course, in the first year at University. The adopted theoretical frame is the Anthropological Theory of Didactic (ATD) (Chevallard, 1999, 2001). The mathematical, social, and cultural sense (Bosch et. al., 2006) of this OM of reference is described. Finally, the practicaltechnical and technological-theoretical components of the OM are detailed; this is, the types of tasks, the mathematical techniques, the technologies and theory.
Location of Large-Scale Concentrating Solar Power Plants in Northeast Brazil  [PDF]
Vernica Wilma Bezerra Azevedo, Chigueru Tiba
Journal of Geographic Information System (JGIS) , 2013, DOI: 10.4236/jgis.2013.55043
Abstract: Heliothermic electricity generation is gaining popularity in several countries worldwide. In Brazil, this form of energy generation has not yet been explored for large scale projects. However, the country possesses extensive areas with normal and high-intensity direct irradiation and low seasonality factors, particularly in the semi-arid region of the Brazilian Northeast. The region also presents other important features for setting up such plants: proximity to transmission lines, sufficient flatness, non-endangered vegetation, a suitable land use profile low maximum wind speeds, low population density, and more recently, an increase in the demand for local electric energy due to economic growth above the Brazilian average. A Geographic Information System includes a set of specialised resources that allow us to manipulate spatial data, providing quickness and efficiency in the identification of appropriate places for installing solar power plants while also preparing us for future scenarios, with regards to their impacts, costs and benefits. This article presents a study of the optimal location for thermoelectric power plants in the semi-arid region of the Brazilian Northeast on the scale of 1:10,000,000. All provinces with good potential for the implementation of large-scale concentrating solar power plants are identified. Considering that the installed capacity for parabolic cylindrical concentrators in terrains with a steepness of less than 1% is 43.26 MW/km2 for systems without storage and 30.82 MW/km2 for systems with 6 hours of storage, the potential of the southeast region of Piauí alone is huge. Even with the lack of information about the urban areas, terrain continuity, and other variables,utilising only 10% of the identified potential area, or879.7 km2, would result in an installed capacity of 38.1-27.1 GW. This value corresponds to more than 1/3 of the potency of the current Brazilian electric system. If the same calculation is made for the semi-arid region of the Brazilian Northeast, its capacity will be greater than 1000 GW.
Abnormal Succession of Insect Fauna on Pig Carcasses in Tandil (Argentina, Buenos Aires Province)  [PDF]
A. Verónica Trigo, Néstor Centeno
Advances in Entomology (AE) , 2014, DOI: 10.4236/ae.2014.22017
Abstract: This project was an attempt to reconstruct a death in dubious circumstance which happened in December 2002 in Tandil (Buenos Aires Province). Although the body was in open air, the entomological expertise discovered signs of delayed colonization. In this experiment, pig carcasses used as models to reconstruct the case. One was placed in shadow and another in sunlight (control). The hypothesis was that the climate and the topography affect the necrophagous insect succession in a mountain site. The families of Coleoptera found on the baits were: Silphidae, Dermestidae, Cleridae, Histeridae; of Díptera: Calliphoridae, Sarcophagidae; Asilidae; of Hymenoptera: Formicidae, Encyrtidae and Vespidae.
Landscape Connectivity Approach in Oceanic Islands by Urban Ecological Island Network Systems with the Case Study of Santa Cruz Island, Galapagos (Ecuador)  [PDF]
Verónica Lorena Andrade Sierra, Xuan Feng
Current Urban Studies (CUS) , 2018, DOI: 10.4236/cus.2018.64031
Abstract:
The oceanic islands are well known for their high biodiversity where the dynamic integration of the ecosystems inside the populated islands is such as a living laboratory of ecological and social relations of interdependence. Oceanic islands are experimenting significant pressure on their ecosystems. Habitat fragmentation produces poor spatial connectivity between protected areas and human settlements. The essence of the research approach is to develop a new framework of Oceanic Island Network System based on urban ecological networks in dealing with island connectivity issues space. This new urban ecological planning tool can help to generate an integrator balance by a physical linkage system in a socio-ecosystem island. Facilitating the territorial ordering based on the spatial and functional relations between ecological functions and urban structure through the island network system has not been analyzed yet as an essential resource for integrating the natural and human systems in oceanic islands. This paper presents a landscape theory connectivity analysis of the built space vs. the natural space of oceanic islands with the case study of Santa Cruz Island, Galapagos into the Pelican Way Watershed boundaries. In this context, spatial network elements are considered under land movement concept. The analysis is intended to determine the spatial elements interrelationships by socio-ecological networks establishing a new landscape system strategy. Additionally, it is valuable and necessary to establish a new concept of land use network for oceanic islands, such as a potential resource to generating a physical structure of environmental balance connectivity, which includes social needs and ecological potentialities for successful urban ecological conservation and development.
Síndrome de Cowden: A propósito de una familia afectada
Blanco,Verónica; Keochgerián,Verónica;
Medicina Oral, Patología Oral y Cirugía Bucal (Internet) , 2006,
Abstract: cowden?s syndrome is a rare genodermatosis characterized by multiple hamartomas in several tissues and organs derived from all three embryonic layers. clinical features of cowden?s disease are explained by the mutation of the pten tumour suppressor gene, whose modification leads to an uncoordinated growth of tissues. the importance of this disease lies in the increased susceptibility to malignization of some lesions, specially breast, thyroid and genito-urinary tract lesions. as a result, the disease has been considered a preneoplasic condition. despite its varied phenotypic expression, this disease is generally unknown. consequently, many cases are undiagnosed or diagnosis comes at a late stage, what points out the importance of an early diagnosis of the disease so the patient can have periodic check-ups to prevent malignant diseases. a family case is presented here, whose diagnosis was based upon oral clinical findings and which most distinct systemic alteration is the presence of hamartomatous polyps in the digestive tract in several family members.
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