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Aproximadamente 45 registro(s) hasta el momento: (datos)

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Recurso libre

Nutrición y rendimiento escolar: ¿Es posible mostrar una relación causal usando datos de corte transversal?, Nutrition and education in childhood: is it possible to show a causal relationship using cross-section data?
Rabassa, Mariano

Formato:	Tesis, Tesis de maestria
Enlaces:	The fact that nutrition affects education outcomes is accepted by researchers and by policy makers. It is simple. Children cannot learn if they are hungry. The validity of the empirical approaches used to show a causal relationship from nutrition to…
Fecha:	2010-07-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Labor participation and earnings for young women in Argentina
Marchionni, Mariana

Formato:	Articulo, Documento de trabajo
Enlaces:	Este trabajo se concentra en explorar los efectos potenciales de la educación media y el ambiente familiar sobre los resultados laborales de las jóvenes en Argentina. En particular, interesa la condición laboral, la calidad del empleo y los salarios. El…
Fecha:	2010-06-08
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Trade and labor outcomes in Latin America's rural areas: a cross-household surveys approach
Gasparini, Leonardo - Gutiérrez, Federico H. - Porto, Guido

Formato:	Articulo, Documento de trabajo
Enlaces:	Este trabajo explora la conexión entre el comercio y los resultados laborales en áreas rurales de América Latina al estimar modelos de regresión a nivel de hogar utilizando una combinación de microdatos de 60 encuestas de hogares y datos agregados.…
Fecha:	2010-06-08
Recurso:	Unversidad Nacional de La Plata

Recurso libre

ODE: ontology-based software development environment
Falbo, Ricardo de Almeida - Natali, Ana Candida Cruz - Mian, Paula Gomes - Bertollo, Gleidson - Ruy, Fabiano Borges

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Software tools processing partially common set of data should share an understanding of what these data mean. Since ontologies have been used to express formally a shared understanding of information, we argue that they can be used to improve integration…
Fecha:	2012-10-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Applying an ontology on data integration
Buccella, Agustina - Cechich, Alejandra - Brisaboa, Nieves R.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The term “Federated Databases” refers to the data integration of distributed, autonomous and heterogeneous databases. However, a federation can also include information systems, not only databases. When integrating data, several issues must be addressed. Here, we focus on the problem…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Evolution of product line architectures
Amaolo, Marcelo Paulo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Product-line architectures, i.e. a software architecture and component set shared by a family of products, represents a promising approach to achieving reuse of software. Several companies are initiating or have recently adopted a product-line architecture. However, little experience is available…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Selecting COTS components: a comparative study on E-Payment systems
Cechich, Alejandra - Taryano, Karina

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Using COTS software promises faster time-to-market, which can yield substantial advantages over competitors with regards to earlier placement of a new product on a market. At the same time, component-based software introduces risks, such as unknown quality properties of the…
Fecha:	2012-10-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

An ontological approach to federated data integration
Buccella, Agustina - Cechich, Alejandra - Brisaboa, Nieves R.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	During the last years a lot of projects and lines of research have emerged from different proposals trying to find the best way to reach data integration. Two powerful techniques have appeared separately – ontology and contextual information – in…
Fecha:	2012-10-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Mapeando modelos conceituais dimensionais OO para modelos lógicos dimensionais relacionais
Carvalho, Rogerio Atem de - Tanaka, Asterio K. - Colonese, Giovanni

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The star model, broadly used in data warehouse modeling, is a logical model, so its representation is strongly dependent on the database technology used for its implementation, usually relational. The method recommended for designing a dimensional system would be the…
Fecha:	2012-10-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

10.

Classifying groupware tools to improve communication in geographically distributed elicitation
Martín, Adriana - Martinez, Claudia - Martínez Carod, Nadina - Aranda, Gabriela N. - Cechich, Alejandra

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In a scene where stakeholders are geographically distributed, communication presents new challenges for research areas. Considering the characteristics of interpersonal communication and the virtual area where it is carried out, the importance of applying interdisciplinary approaches, such as Cognitive Engineering,…
Fecha:	2012-10-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

An ontology approach to data integration
Buccella, Agustina - Cechich, Alejandra - Rodríguez Brisaboa, Nieves

Formato:	Articulo, Articulo
Enlaces:	The term Federated Databases refers to the data integration of distributed, autonomous and heterogeneous databases. However, a federation can also include information systems, not only databases. At integrating data, several issues must be addressed. Here, we focus on the problem…
Fecha:	2004-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

Modeling public business processes with interaction protocols in business-to-business relationships
Villareal, Pablo - Chiotti, Omar Juan Alfredo - Salomone, Enrique

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Today, one of the main challenges of the Business-to-Business (B2B) E-Commerce solutions is to improve the business processes that organizations carry out with their suppliers and customers. B2B relationships require the management of public business processes, which span the organizational…
Fecha:	2012-10-24
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

Taxonomic evidence applying algorithms of intelligent data mining
Perichinsky, Gregorio - Servente, Magdalena - Servetto, Arturo Carlos - García Martínez, Ramón - Orellana, Rosa Beatriz - Plastino, Ángel Luis

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Numerical Taxonomy aims to group in clusters, using so-called structure analysis of operational taxonomic units (OTUs or taxons or taxa) through numerical methods. Clusters that consitute families was the purpose of this series of last projects. Structural analysis, based on…
Fecha:	2012-09-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

Development of a relational database management system
Ruiz, Anabel Natalia - Maldonado, Calixto - Martínez Spessot, Cesar Ignacio

Formato:	Articulo, Articulo
Enlaces:	The studies of Relational Data Base Management Systems and Databases constitute nowadays a main tren of investigation in large businesses and universities of the entire world. The creation of a data base engine keeps being a challenge since there are…
Fecha:	2004-05-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

Fully dynamic and memory-adaptative spatial approximation trees
Arroyuelo, Diego - Navarro, Gonzalo - Reyes, Nora Susana

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Hybrid dynamic spatial approximation trees are recently proposed data structures for searching in metric spaces, based on combining the concepts of spatial approximation and pivot based algorithms. These data structures are hybrid schemes, with the full features of dynamic spatial…
Fecha:	2012-10-24
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

Design of a service-oriented architecture for federated systems
Calegari, Daniel - Viera, Marcos - Motz, Regina

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	A Federated System is a collection of independent, cooperative, possibly heterogeneous and autonomous computer systems (usually database systems) which allows sharing all or some of its data. A Service-oriented Architecture is an application architecture whose functionalities are defined as independent…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Modern database management VI Edition. Jeffrey A. Hoffer, Mary B. Prescott, Fred R. McFadden Prentice Hall, Upper Saddle River, NJ, 2002
Bertone, Rodolfo Alfredo

Formato:	Articulo, Revision
Enlaces:	This book provides an excellent foundation for the principles of database and data management. It explains some of the more difficult concepts fairly well. The book is meant for an introductory course in database management which is usually required as…
Fecha:	2008-10-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

Improving use case definition using enterprise communication networks
Luzuriaga, Juan Manuel

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Although researchers noted the importance of effective communication among stakeholders, it continues to be a challenge for requirements engineering. Communication can be considered as a management tool since communication allows organisation’s personnel to produce a cohesive enterprise view. In this…
Fecha:	2012-10-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

Argentina s crises and the poor, 1995-2002
Cruces, Guillermo - Wodon, Quentin

Formato:	Articulo, Articulo
Enlaces:	Este trabajo documenta el impacto de las recientes crisis en Argentina sobre diferentes aspectos de la pobreza, con particular atención en la crisis económica de 2002. Discutimos la metodología de medición de pobreza en Argentina y utilizamos una regla simple…
Fecha:	2009-07-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

Classifying software requirement prioritization approaches
Martínez Carod, Nadina - Cechich, Alejandra

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Defining software requirements is a complex and difficult process, which often leads to costly project failures. Requirements emerge from a collaborative and interactive negotiation process that involves heterogeneous stakeholders (people involved in an elicitation process such as users, analysts, developers,…
Fecha:	2012-10-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

CCMini: a prototype of certifying compiler based on annotated abstract syntax trees
Bavera, Francisco - Nordio, Martín - Medel, Ricardo - Aguirre, Jorge - Baum, Gabriel Alfredo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Certifying compilers use static information of a program to verify that it complies with certain security properties and to generate certified code. To do so, those compilers translate the source program into an annotated program written in some intermediate language.…
Fecha:	2012-10-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Semantic document indexing in ontology-driven organizational memories
Ale, María Alejandra - Galli, María Rosa - Chiotti, Omar Juan Alfredo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Effective document retrieval using domain knowledge and semantics is one of the major challenges in Information Retrieval. Over the last years, there has been a growing interest in ontologies as an artifact for human knowledge representation and a critical component…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

A UML profile to model classifier refinements
Correa, Natalia - Giandini, Roxana Silvia - Pons, Claudia

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The refinement technique allows us to capture the relationship between specification and implementation in software developments. The precise documentation of the refinement relations hip makes it possible the traceability of the requirements through the refinement steps. Unfortunately, the standard modelling…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

Tower generic data processing
Necco, Claudia Mónica - Nuno Olivera, J.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Many aspects of data processing are functional in nature and can take advantage of recent developments in the area of functional programming and calculi. The work described in this paper is an attempt to contribute to this line of thought,…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Extending message-oriented middleware
Estevez, Elsa Clara - Janowski, Thomas

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Different types of middleware exist to facilitate the integration of software running on heterogeneous computing platforms. Message Oriented Middleware (MOM), for instance, enables the interaction between heterogeneous applications by exchanging packets of structured data (messages) through communication channels. The core…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

Management model for measurement infrastructure
Battisti, Gerson - Tarouco, Liane M. R. - Granville, Lisandro

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The evaluation of metric of performance is useful in the evaluation of protocols, in the improvement of applications, in the content choice, among others. The obtaining of these metrics, it continues being a complex task because most of the time…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

27.

Evolutifon of decision support system architectures: applications to land planning and management in Cuba
Segrera, Saddys - Ponce-Hernandez, Raúl - Arcia, J.

Formato:	Articulo, Articulo
Enlaces:	The main objective of this paper centers on reviewing the evolution of Decision Support System´s (DSS) architectures, particularly as they apply to natural resources. Today it is difficult to conceive the existence of a rural planning automated system that doesn't…
Fecha:	2004-02-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

Requirements elicitation applied to electronic voting system
Thomas, Pablo Javier - Oliveros, Alejandro

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Nowadays, technology has become the key element to carry out the management, organization and fulfillment of the electoral process. The electoral process should be understood as the actions that entail the making of the electoral roll, citizen identification, the act…
Fecha:	2012-10-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Precompilation: an alternative approach to provide native generic programming support in C++
Gutson, Daniel F. - Alarcón, Román

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In C++, Generative Programming (GP) techniques are being used to generate highly customized and optimized products automatically manufactured at compile-time; to provide these functionalities increasing compiling power is required. This work presents an improved compilation model for C++ by adding…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

A software product line experience
Andriano, Natalia Valeria - Kirch, Jorge - Zibecchi, Mariano

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Previous work in software product lines showed an increment of up to 10 times in productivity and product quality [SEI Prod_Line]; because of this, the software product line approach is critical for the success of a development project including a…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

A managerial framework for an electronic government procurement project: complex software projects management fundamentals
Uzal, Roberto - Montejano, Germán Antonio - Riesco, Daniel Eduardo - Uzal, Javier

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	An Electronic Government Procurement (e-GP) project, as most of complex software systems development and implantation, requires sophisticated and strong managerial concepts and skills. So, an effective and consistent managerial framework is needed. Traditional project management models, that propose a series…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

A wrapper&mediator prototype for web data warehouses
Giaudrone, Verónica - Guerra, Marcelo - Vaccaro, Marcelo - Motz, Regina - Marotta, Adriana

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	There is a lot of information published on the Web that can be useful for decision-making. The work reported in this paper focuses on how to extract and integrate this information in order to construct a Data Warehouse that makes…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

Stakeholder selection for business processes support systems in interorganizational environments
Ballejos, Luciana C. - Montagna, Jorge Marcelo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This work presents a methodology with basic steps to follow before developing Interorganizational Information Systems (IOSs), which constitute the support for the execution of business processes (BPs) in new structural forms made up of various organizations, called Interorganizational Networks (IONs).…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Determinants in university desertion and graduation: an application using duration models
Giovagnoli, Paula Inés

Formato:	Articulo, Articulo
Enlaces:	Este trabajo investiga el problema de la deserción y graduación de los estudiantes universitarios. Se utilizan modelos de riesgo proporcional no paramétricos para estimar los efectos cualitativos y cuantitativos de factores personales y características socioeconómicas de los alumnos sobre las…
Fecha:	2009-06-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

The multi-agent system architecture in SEWASIE
Fillottrani, Pablo Rubén

Formato:	Articulo, Articulo
Enlaces:	We describe the design, implementation and deployment of the multi-level agent-based system architecture developed for the SEWASIE project. The aim of the system is to help the user in querying heterogeneous data sources which are integrated by means of ontologies.…
Fecha:	2008-05-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

Metric-temporal access methods
De Battista, Anabella - Herrera, Norma Edith - Gutiérrez Retamal, Gilberto A. - Pascal, Andrés

Formato:	Articulo, Articulo
Enlaces:	Metric-temporal databases are a new database model that combines metric spaces with temporal databases to process similarity queries within a time interval or snapshot. The Historical FHQT is a metric-temporal index which has shown to be competitive answering this type…
Fecha:	2010-06-14
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

Design of a service-oriented architecture for federated systems
Calegari, Daniel - Viera, Marcos - Motz, Regina

Formato:	Articulo, Articulo
Enlaces:	A Federated System is a collection of independent, cooperative, possibly heterogeneous and autonomous computer systems (usually database systems) which allows sharing all or some of its data. A Service-Oriented Architecture is an application architecture whose functionalities are defined as independent…
Fecha:	2008-05-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

38.

Contenido de acido 5-cafepoilquínico y cafeína en bebidas de yerba mate (Ilex paraguariensis), The chlorogenic acid and caffeine content of yerba maté (Ilex paraguariensis) beverages
Markowicz Bastos, Deborah H. - Fornari, Ana Claudia - Queiroz, Yara S. de - Manolio Soares, Rosa Aparecida - Torres, Elizabeth A. F. S.

Formato:	Articulo, Comunicacion
Enlaces:	El objetivo de este trabajo fue el de analizar el contenido de cafeína y ácido 5-cafeoilquínico (5-cqa) en bebidas tales como chimarrão, tererê y maté té. La determinación de estos compuestos se realizó por HPLC. Las bebidas a base de…
Fecha:	2008-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

39.

Subquery allocations in distributed databases using genetic algorithms
Gorla, Narasimhaiah - Song, Suk-Kyu

Formato:	Articulo, Articulo
Enlaces:	Minimization of query execution time is an important performance objective in distributed databases design. While total time is to be minimized for On Line Transaction Processing (OLTP) type queries, response time has to be minimized in Decision Support type queries.…
Fecha:	2010-03-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

Income distribution, institutions and conflicts: an exploratory analysis for Latin America and the Caribbean
Gasparini, Leonardo - Molina, Ezequiel

Formato:	Articulo, Documento de trabajo
Enlaces:	Este documento explora la relación entre la distribución del ingreso, las instituciones y los conflictos en América Latina y el Caribe mediante el uso de una nueva base de datos de estadísticas de la distribución del ingreso calculado a partir…
Fecha:	2010-06-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Alsodes Pehuenche (anura: cycloramphidae): past, present and future
Corbalan, Valeria - Debandi, Guillermo - Martinez, Flavio

Formato:	Articulo, Articulo
Enlaces:	Alsodes pehuenche es una especie endémica del Valle Pehuenche, en los An- des centrales de la Argentina, en el límite con Chile. Su biología es pobremente conocida y, en consecuencia, ha sido incluida en la categoría de Datos Insuficientes por…
Fecha:	2011-06-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

42.

Prolactina y hormonas tiroideas en caninos, Prolactin and thyroid hormones in dogs
Castillo, V. - Lalia, J. - Scodelaro, C. - Bellini, María José - Gobello, Cristina

Formato:	Articulo, Articulo
Enlaces:	Muy poco se conoce sobre la concentración sérica de prolactina (PRL) bajo condiciones patológicas en perros. Para describir la relación entre las concentraciones séricas de PRL y las hormonas tiroideas se usaron cuarenta y cinco perros machos y hembras de…
Fecha:	2010-09-13
Recurso:	Unversidad Nacional de La Plata

Recurso libre

43.

Labor informality in Latin America and the Caribbean: patterns and trends from household survey microdata
Gasparini, Leonardo - Tornarolli, Leopoldo

Formato:	Articulo, Documento de trabajo
Enlaces:	Este artículo documenta los principales patrones y tendencias de las definiciones alternativas de la informalidad laboral en América Latina y el Caribe, mediante la utilización de una gran base de datos de más de 100 encuestas de hogares para el…
Fecha:	2010-06-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

Economic polarisation in Latin America and the Caribbean: what do household surveys tell us?
Gasparini, Leonardo - Horenstein, Matías - Olivieri, Sergio

Formato:	Articulo, Documento de trabajo
Enlaces:	Este documento presenta y discute un conjunto de estadísticas enfocadas a caracterizar el grado de polarización económica en los países de América Latina y el Caribe (LAC). El estudio se basa en una base de datos de encuestas de hogares…
Fecha:	2010-06-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

45.

Interacciones genotipo x ambiente, mega-ambientes y genotipos y ambientes superiores para rendimiento de grano de soja en Argentina, Genotype-environment interactions, megaenvironments and winner genotypes and environments for soybean grain yield in Argentina
Lúquez, Julia - Capurro, M. - Erazzú, Luis

Formato:	Articulo, Articulo
Enlaces:	La soja [(Glycine max L.) Mer.] puede sembrarse en una amplia zona del país en Argentina. Los ensayos comparativos de rendimiento, normalmente se realizan en 3 zonas agroecológicas: Norte, Pampeana Norte y Pampeana Sur. El análisis y la interpretación de…
Fecha:	2011-03-04
Recurso:	Unversidad Nacional de La Plata