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Recurso libre

Animal Base
Deutsche Forschungsgemeinschaft DFG

Formato:	Repositorio
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

Within-signal associations in lacquier-thinner conditioned aversion, Asociaciones intra-señal en la aversión condicionada del tiner
Vila, Javier; Universidad Nacional Autónoma de México - Colotla, Víctor A.; Universidad Nacional Autónoma de México - Miranda, Florencio; Universidad Nacional Autónoma de México - Arzate, Roberto; Universidad Nacional Autónoma de México

Formato:	,
Enlaces:	The present experiment attenmpted to evaluate the formation of associations between elements of an odour-flavour compoundpared with a LiCl injection, in rats. The data obtained show that the aversion produced to the lacquer thinner odour is greater when this is…
Fecha:	2011-06-21
Recurso:	Revistas UNAM

Recurso libre

Numerical implementation of quantum control protocols based on “on-off” stages for a single qubit, Implementación numérica de algoritmos de control cuántico basados en etapas de prendido y apagado para un qubit
Medina, Julieta; UPIITA-IPN

Formato:	Artículo revisado por pares, ,
Enlaces:	In this paper the stability of specific quantum control protocols is analyzed through a simulation. Two-level quantum systems driven by resonant external fields are studied. The focus of attention are those protocols requiring long sequences of external pulses. It is…
Fecha:	2013-11-21
Recurso:	Acta Universitaria

Recurso libre

Effects of halo pendol oit Me perforrmance of a response conditíoned under a fixed-interval schedule, Efectos del haloperidol sobre la ejecución de una respuesta condicionada bajo un programa de intervalo fijo
Velazquez Martínez, David N.; Universidad Nacional Autónoma de México - Bermúdez Rattoni, Federico; Universidad Nacional Autónoma de México - Prado Alcalá, Roberto A.; Universidad Nacional Autónoma de México

Formato:	,
Enlaces:	The performonce of an instrumental response, maintained under o fixed-interval schedule, was studied 30 sec., 40 min., 4 hr. and 8 hs.. afterr administering holoperidol, in rats. A marked reduction of operant responding was seen after the first two periods,…
Fecha:	2011-06-21
Recurso:	Revistas UNAM

Recurso libre

Cooperative behavior and choice, Conducta cooperativa y elección
Santoyo Velasco, Carlos; UNAM - Cortés Heredia, Martha; UNAM - Torres Navarro, Carolina; UNAM - Espinosa Arámburu, María Celia; UNAM

Formato:	,
Enlaces:	Two experirnents using the alternative response procedure with 8 and 10 years old boys were conducted. The experiments required that the subjects produced an ordered sequence of binary numbers over alternate trials. Each subject choose on each trial between five…
Fecha:	2011-06-21
Recurso:	Revistas UNAM

Recurso libre

Determinant factors in dynamics of global manufacturing virtual networks, Factores determinantes en la dinámica de las redes virtuales de fabricación global, Determinant factors in dynamics of global manufacturing virtual networks
Vilana, José Ramón; Madrid Technological University - ETSII-UPM - Rodríguez Monroy, Carlos; Madrid Technological University - ETSII-UPM

Formato:	info:eu-repo/semantics/article, análisis de datos mediante modelo econométrico, info:eu-repo/semantics/publishedVersion
Enlaces:	Purpose: The purpose of this work is to demonstrate the existence of a number of structural mechanisms that networks actors use to exert tacit power in the GMVNs. Design/methodology/approach: The analysis of the engine manufacturing aeronautical industry based on a…
Fecha:	2011-04-21
Recurso:	Intangible capital

Recurso libre

The effects of varyng the spatial localization of the conditioned stimulus in an autoshaping/automaintenance situations., Los efectos de variar la ubicación espacial de un estímulo en la situación de automoldeamiento y automantenimiento
Bruner, Carlos A.; Universidad Nacional Autónoma de México - Landaverde, Jorge E.; Universidad Nacional Autónoma de México

Formato:	,
Enlaces:	Three pigeons were exposed to an autoshaping/autonzaintenance situation where a 4-second stimulus preceded a food delivery, every 128 seconds. For each block of 20 sessions, the stimulus was presented in one of four keys, placed at 0, 6, 18 and…
Fecha:	2011-06-21
Recurso:	Revistas UNAM

Recurso libre

Encuesta de sostenibilidad de sistemas de mejora continua: Comparativa de dos comunidades industriales de España y México, Survey of sustainability of continuous improvement systems: a comparison of two manufacturing communities in Spain and Mexico, Survey of sustainability of continuous improvement systems: a comparison of two manufacturing communities in Spain and Mexico
Jaca, Carmen; Tecnun - Universidad de Navarra - Suárez-Barraza, Manuel F.; Tecnológico de Monterrey - Viles-Díez, Elisabeth; Tecnun - Universidad de Navarra - Mateo-Dueñas, Ricardo; Universidad de Navarra - Santos-García, Javier; Tecnun - Universidad de Navarra

Formato:	info:eu-repo/semantics/article, SURVEY, survey, info:eu-repo/semantics/publishedVersion
Enlaces:	Objeto: En los últimos 50 años las empresas industriales han adoptado sistemas de mejora continua para mejorar su competitividad. Sin embargo, el mantenimiento de estos sistemas de mejora no es fácil. Algunas organizaciones, después de un período inicial de uno…
Fecha:	2011-04-21
Recurso:	Intangible capital

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

10.

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

11.

The Extreme Vertices Model in the 4D space and its Applications in the Visualization and Analysis of Multidimensional Data Under the Context of a Geographical Information System
Pérez Águila, Ricardo

Formato:	Electronic Thesis or Dissertation, Tesis
Enlaces:	En este trabajo se comentan algunos aspectos geométricos y topológicos relacionados a los Politopos n-Dimensionales y tres metodologías para su visualización: a través de sus unravelings, a través de sus intersecciones con el espacio 3D y a través de…
Fecha:	2003-05-16
Recurso:	CIRIA

Recurso libre

12.

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

13.

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

14.

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

15.

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

16.

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

17.

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

18.

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

19.

Sombrero de palma, 2244
Estrada Discua, Raul

Formato:	Imagen
Enlaces:	Instituto de Investigaciones Sociales
Fecha:	2012-08-18
Recurso:	Instituto de Investigaciones Sociales - UNAM

Recurso libre

20.

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

21.

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

22.

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

23.

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

24.

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

25.

The Phycology.Net
Bayerisches Landesamt für Wasserwirtschaft - Botanische Staatssammlung München - University of Bayreuth Department of Mycology

Formato:	Biblioteca virtual
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

26.

Category-based language models in a Spanish spoken dialogue system
Justo Blanco, Raquel - Torres Barañano, María Inés - Benedí Ruiz, José Miguel

Formato:	info:eu-repo/semantics/article
Enlaces:	El objetivo principal de este trabajo es comprobar si un modelo de lenguaje basado en categorías puede mejorar el rendimiento de un sistema de diálogo, de la misma forma que lo hace para aplicaciones que utilizan bases de datos no
Fecha:	2007-11-19
Recurso:	RUA Docencia

Recurso libre

27.

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

28.

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

29.

Phrase break prediction : a comparative study
Agüero, Pablo Daniel - Bonafonte Cávez, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	Este artículo presenta un estudio comparado de varios métodos de predicción de pausas, usando el mismo corpus etiquetado. Algunos métodos propuestos por otras publicaciones sobre el tema son probados, combinando algunas técnicas previas para aprovechar sus principales ventajas. Un nuevo…
Fecha:	2007-09-05
Recurso:	RUA Docencia

Recurso libre

30.

Hazus application to Oslo municipality: data description
Molina Palacios, Sergio - Lindholm, Conrad D.

Formato:	info:eu-repo/semantics/workingPaper
Enlaces:	In order to apply HAZUS methodology to a real seismic risk study outside USA, the Oslo municipality was chosen as study region. The civil institutions were asked for neccesary information and we were provided with different ASCII and Arcview files…
Fecha:	2007-10-30
Recurso:	RUA Docencia

Recurso libre

31.

The mexican Frankliniella aurea Moulton, F. bisaetaevenusta sp. Nov., and F. prothoraciglabra sp. Nov. Species assemblages in the Intonsa Group (Insecta: Thysanoptera: Thripidae).
Johansen-Naime, R.M. - Mojica-Guzman, A.

Formato:	Artículo
Enlaces:	A review of the North American (Mexico and the United States of America) species Frankliniella aurea Moulton, 1948, was carry out herein. It is now recognized as a "species complex", since its adults show three color forms; new data about…
Fecha:	2013-11-20
Recurso:	Facultad de Ciencias - UNAM