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Aproximadamente 277 registro(s) hasta el momento: (datos)

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Recurso libre

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

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

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

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

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

10.

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

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.

Who Ear and hearing disorders survey Ecuador National Study 2008-2009.
Ullauri, Alejandra

Formato:	Tesis
Enlaces:	ABSTRACTO: Es el primer estudio nacional de prevalencia de desordenes de oído y audición en América Latina con el protocolo de la Organización Mundial de la Salud OMS (World Health Organización Ear and Hearing Disorder Survey Protocol). OBJETIVOS: 1) Proveer…
Fecha:	2013-07-01
Recurso:	Universidad San Francisco de Quito

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.

Animal Base
Deutsche Forschungsgemeinschaft DFG

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

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.

Applying aspect oriented technology to relational data bases: The replication case, Tecnología aplicada a aspectos en base de datos relacionales: El caso de replicación
Fernando Asteasuain; Universidad de Buenos Aires - Adeel Javed; University of Central Punjab

Formato:	,
Enlaces:	AbstractDue to aspect-oriented mechanisms explosion, their concepts arrive to distributed systems tackling concepts as security, persistence, or synchronization, especially in middleware approaches. Regarding distributed databases, the research has been focused mainly on object-oriented databases. Based on the great impact of…
Fecha:	2011-06-20
Recurso:	Ingeniería y desarrollo

Recurso libre

21.

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

22.

Sistema automático de adquisición de datos para un medidor de deformación
Espinosa Ramón, Alfonso - Flores Cifuentes, Fernando

Formato:	Article
Enlaces:	El presente artículo describe un sistema de adquisición de datos para un medidor de deformación. Se presenta el análisis del diseño de la circuitería y la programación, los resultados obtenidos y finalmente algunas conclusiones.
Fecha:	2007-05-23
Recurso:	Escuela Politécnica Nacional

Recurso libre

23.

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

24.

A business-oriented approach to data warehouse development, Enfoque orientado al negocio para el desarrollo del almacén de datos
Cravero Leal, Ania - Mazón López, José Norberto - Trujillo Mondéjar, Juan Carlos

Formato:	info:eu-repo/semantics/article
Enlaces:	Several surveys have indicated that many data warehouses fail to meet business objectives or are outright failures. One reason for this is that requirement engineering is typically overlooked in real projects. This paper addresses data warehouse design from a business…
Fecha:	2013-10-22
Recurso:	RUA Docencia

Recurso libre

25.

La concordancia de la frase nominal por los sino hablantes aprendices de español como segunda lengua
Gutiérrez Barraza, Daniela; Universidad Distrital Francisco José de Caldas

Formato:	info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion, Artículo revisado por pares, Peer-reviewes Article
Enlaces:	En los últimos años se ha elevado el número de personas que quieren aprender español como segunda lengua/lengua extranjera. Porello, es importante estudiar las dificultades que tienen que afrontar los estudiantes no nativos de español al momento de involucrarse en…
Fecha:	2013-07-15
Recurso:	Colombian Applied Linguistics Journal

Recurso libre

26.

A business-oriented approach to data warehouse development, Enfoque orientado al negocio para el desarrollo del almacén de datos
Cravero Leal Ania ; Universidad de La Frontera - Mazón Jose Norberto ; Universidad de Alicante - Trujillo Juan ; Universidad de Alicante

Formato:	, ,
Enlaces:	Several surveys have indicated that many data warehouses fail to meet business objectives or are outright failures. One reason for this is that requirement engineering is typically overlooked in real projects. This paper addresses data warehouse design from a business…
Fecha:	2013-04-04
Recurso:	Ingeniería e investigación

Recurso libre

27.

Design and implementation of a GIS zoning of major crops in the province of Santo Domingo de los Tsáchilas.
Cevallos Dueñas, Adrián Rolando

Formato:	Tesis
Enlaces:	El actual trabajo de Tesis consiste en la creación de un Sistema de Información Geográfico que servirá a la Dirección Provincial del Ministerio de Agricultura, ganadería, Acuacultura y Pesca (MAGAP) en Santo Domingo, para identificar el potencial real de la…
Fecha:	2013-07-02
Recurso:	Universidad San Francisco de Quito

Recurso libre

28.

Fast Most Similar Neighbor (MSN) classifiers for Mixed Data, Clasificadores Rápidos basados en el algoritmo del Vecino más Similar (MSN) para Datos Mezclados
Hernández Rodríguez, Selene - Martínez Trinidad, José Francisco - Carrasco Ochoa, Jesús Ariel

Formato:
Enlaces:	The k nearest neighbor (k-NN) classifier has been extensively used in Pattern Recognition because of its simplicity and its good performance. However, in large datasets applications, the exhaustive k-NN classifier becomes impractical. Therefore, many fast k-NN classifiers have been developed;…
Fecha:	2011-06-29
Recurso:	Revistas UNAM

Recurso libre

29.

Environmental and Occupational Optometry. Lesson 8 (Course 2013-2014)
Martínez Verdú, Francisco Miguel

Formato:	info:eu-repo/semantics/lecture
Enlaces:	Tema 8: Pantallas de visualización de datos. Actividad voluntaria nº 5.
Fecha:	2013-11-27
Recurso:	RUA Docencia

Recurso libre

30.

Manifesto of interbehavioral psychology, Manifiesto de la psicología interconductual
Kantor, J. R.; Univesidad de Chicago

Formato:	,
Enlaces:	Describes dic nature and development of interbehavioral psychology, with particular reference to its origin, postulation, data, operations, laws, asid implications., Describe la naturaleza y desarrollo de la psicologi’a interconductural, con peticular referencia a su origen, postulación, datos, operaciones, leyes e…
Fecha:	2011-01-27
Recurso:	Revistas UNAM

Recurso libre

31.

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

32.

Color and motion-based particle filter target tracking in a network of overlapping cameras with multi-threading and GPGPU, Rastreo de objetivos por medio de filtros de partículas basados en color y movimiento en una red de cámaras con multi-hilo y GPGPU
Madrigal Díaz, Jorge Francisco; Centro de Investigación en Matemáticas (CIMAT) - Hayet, Jean-Bernard; Centro de Investigación en Matemáticas, A.C.

Formato:	Artículo revisado por pares, filtro de partícula, Particle filter
Enlaces:	This paper describes an efficient implementation of multiple-target multiple-view tracking in video-surveillance sequences. It takes advantage of the capabilities of multiple core Central Processing Units (CPUs) and of graphical processing units under the Compute Unifie Device Arquitecture (CUDA) framework. The…
Fecha:	2013-03-13
Recurso:	Acta Universitaria

Recurso libre

33.

Mujer de espaldas, 4482
S/D

Formato:	Imagen
Enlaces:	Instituto de Investigaciones Sociales,UNAM
Fecha:	2013-02-13
Recurso:	Instituto de Investigaciones Sociales - UNAM

Recurso libre

34.

Combining methods for searches in nested metric spaces
Gercek, Hugo - Reyes, Nora Susana - Deco, Claudia - Bender, Cristina - Salvetti, Mariano

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Most search methods in metric spaces assume that the topology of the object collection is reasonably regular. However, there exist nested metric spaces, where objects in the collection can be grouped into clusters or subspaces, in such a way that…
Fecha:	2012-07-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

Decision support system for seismic risks
Somodevilla, María J. - Nava, Angélica - Pineda, Ivo H. - Priego, Ángeles Belém - Castillo, Esteban

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This paper focuses on prediction and prevention of seismic risk through a system for decision making. Data Warehousing and OLAP operations are applied, together with, data mining tools like association rules, decision trees and clustering to predict aspects such as…
Fecha:	2012-07-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

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

37.

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

38.

Operational risk in the payment process of Procampo. A bayesian approach, Riesgo operacional en el proceso de pago del Procampo. Un enfoque bayesiano
Martínez Sánchez, José Francisco - Venegas Martínez, Francisco

Formato:
Enlaces:	This paper identifies and quantifies through a Bayesian Network model (BN) the various factors of Operational Risk (OR) associated with the payment process PROCAMPO. The BN model is calibrated with data from events that occurred during the period 2008-2011. Unlike…
Fecha:	2013-04-05
Recurso:	Revistas UNAM

Recurso libre

39.

Ubiquigeneous networking: a distributed networking application over mobile embedded devices
Kohn, Rodolfo - Marrone, Luis Armando

Formato:	Articulo, Revision
Enlaces:	Resumen de la tesis del autor para obtener el grado de Magister en Redes de Datos de la Facultad de Informática de la UNLP, dirigida por Luis Armando Marrone.
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

Knowledge extraction in large databases using adaptive strategies
Hasperué, Waldo

Formato:	Articulo, Revision
Enlaces:	The general objective of this thesis is the development of an adaptive technique for extracting knowledge in large databases. Nowadays, technology allows storing huge volumes of information. For this reason, the availability of techniques that allow, as a first stage,…
Fecha:	2013-03-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Using Skype in a Primary Class: A Case Study
Cuestas, Aida; Universitat Autònoma de Barcelona

Formato:	Avaluacions anònimes, Peer-Reviewed Article, Qualitative Analysis, Evaluaciones anónimas,
Enlaces:	AbstractThe important role of new technologies to communicate in the globalized world we live in cannot be denied. Teachers must take this fact into account and help their students construct their knowledge through computer-mediated learning in order to better understand…
Fecha:	2013-06-01
Recurso:	Bellaterra: Journal of teaching and Learning Language and Literature

Recurso libre

42.

Lib4RI: Library for the Research Institutes within the ETH Domain: Eawag, Empa, PSI & WSL.
Research Institutes within the ETH Domain: Eawag - Empa - PSI & WSL

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

Recurso libre

43.

LANDFALLING TROPICAL CYCLONES ON THE PACIFIC COAST OF MEXICO: 1850-2010 (edited by T. Cavazos)., LANDFALLING TROPICAL CYCLONES ON THE PACIFIC COAST OF MEXICO: 1850-2010 (edited by T. Cavazos).
Raga, Graciela B. - Bracamontes-Cevallos, Beatriz - Farfán, Luis M. - Romero-Centeno, Rosario

Formato:
Enlaces:	Historical documents and newspapers from Mexican Pacific states (north of 14º N) were reviewed to determine the incidence of landfalling tropical cyclones from 1850 to 1949, prior to the start of the United States National Hurricane Center database. The reviewed…
Fecha:	2013-03-22
Recurso:	Revistas UNAM

Recurso libre

44.

INTERANNUAL VARIABILITY OF TROPICAL CYCLONE ACTIVITY ALONG THE PACIFIC COAST OF NORTH AMERICA (edited by G. B. Raga)., INTERANNUAL VARIABILITY OF TROPICAL CYCLONE ACTIVITY ALONG THE PACIFIC COAST OF NORTH AMERICA (edited by G. B. Raga).
Gutzler, David S.; Department of Earth and Planetary Sciences, University of New Mexico - Wood, Kimberly M.; Department of Atmospheric Sciences The University of Arizona - Ritchie, Elizabeth A.; Department of Atmospheric Sciences The University of Arizona - Douglas, Arthur V.; Department of Atmospheric Sciences, Creighton University - Lewis, Michael D.; Department of Atmospheric Sciences, Creighton University

Formato:
Enlaces:	Se describe la variabilidad interanual de ciclones tropicales cercanos a la costa en el Pacífico nororiental, utilizando para ello un conjunto de datos elaborado con reportes oceánicos y atmosféricos de EE.UU. y México correspondientes al periodo 1951-2006. Los ciclones cercanos…
Fecha:	2013-03-22
Recurso:	Revistas UNAM

Recurso libre

45.

Type A Behavior Pattern in workers of San Luis city, its relationship to dysfunctional attitudes, Patrón de Conducta tipo A, su relación con variables cognitivas
Garcia, Horacio Daniel; Facultad de Psicología. Universidad Nacional de San Luis - Fantin, Marina Beatriz; Facultad de Psicología. Universidad Nacional de San Luis

Formato:	,
Enlaces:	Work constitutes a relevant sphere in life: levels of competence, aptness, responsibility and productivity press on the worker in a pursuit of self-improvement. This research attempts to investigate the prevalence of Type A behavior pattern and dysfunctional attitudes, and the…
Fecha:	2013-10-02
Recurso:	Revistas UNAM

Recurso libre

46.

La empresa familiar en México. Situación actual de la investigación, The family business in Mexico. Current status of research
Soto Maciel, Argentina

Formato:
Enlaces:	La empresa familiar forma parte fundamental de las estructuras productivas tanto de las economías industrializadas como en vías de desarrollo. A pesar de carecer de datos rigurosos que permitan corroborarlo, la empresa familiar tiene un papel preponderante en la generación…
Fecha:	2013-04-05
Recurso:	Revistas UNAM

Recurso libre

47.

NITROGEN DIOXIDE DOAS MEASUREMENTS FROM GROUND AND SPACE: COMPARISON OF ZENITH SCATTERED SUNLIGHT GROUND-BASED MEASUREMENTS AND OMI DATA IN CENTRAL MEXICO, NITROGEN DIOXIDE DOAS MEASUREMENTS FROM GROUND AND SPACE: COMPARISON OF ZENITH SCATTERED SUNLIGHT GROUND-BASED MEASUREMENTS AND OMI DATA IN CENTRAL MEXICO
Rivera, Claudia; Centro de Ciencias de la Atmósfera - UNAM Universidad Nacional Autónoma de México Circuito Exterior s/n, Ciudad Universitaria 04510 México D.F. MEXICO - Stremme, Wolfgang; Centro de Ciencias de la Atmósfera - UNAM Universidad Nacional Autónoma de México Circuito Exterior s/n, Ciudad Universitaria 04510 México D.F. MEXICO - Grutter, Michel; Centro de Ciencias de la Atmósfera - UNAM Universidad Nacional Autónoma de México Circuito Exterior s/n, Ciudad Universitaria 04510 México D.F. MEXICO

Formato:	,
Enlaces:	The use of satellite data in combination with ground-based measurements can provide valuable information about atmospheric chemistry and air quality. In this study, ground-based Differential Optical Absorption Spectroscopy (DOAS) measurements of nitrogen dioxide (NO2) conducted in central Mexico are compared…
Fecha:	2013-06-28
Recurso:	Revistas UNAM

Recurso libre

48.

Missing mixed mode: elemental structures, Estructuras básicas de los valores perdidos en encuestas con modos mixtos
Alaminos Chica, Antonio

Formato:	info:eu-repo/semantics/annotation
Enlaces:	One of the main concerns is the nature of the missing values. Let’s consider extremes for simplicity. If missing at random we have not to care about. But if missing shows structures that covariate with substantive variables we have to…
Fecha:	2013-01-16
Recurso:	RUA Docencia

Recurso libre

49.

A way to evaluate the peculiarities of drug information centers in university hospitals
Silva, Viviane D. M. - Diniz, Rodrigo S. - Egito, E. Sócrates T. - Azevedo, Paulo R. M. - Vidotti, Carlos C.F. - Araújo, Ivonete B.

Formato:	Articulo, Articulo
Enlaces:	The aim of this work was to identify the characteristics of the drug information provided by the Drug Information Center (DIC) of a university hospital. A cross-sectional study was conducted, identifying the profile of information requests (IRs) from January 2008…
Fecha:	2011-06-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

50.

Influence of surfactant structure in the encapsulation and stability of amphotericin B in niosomes
Salerno, Claudia - Chiappetta, Diego A. - Monteagudo, Ezequiel - Bregni, Carlos

Formato:	Articulo, Articulo
Enlaces:	Bilayer vesicles, such as liposomes and niosomes, are widely known as efficient delivery systems for drugs. Spherical vesicles consisting of amphipatic non-ionic surfactants named niosomes are arranged in one or more concentric bilayers. They can entrap both water and oil…
Fecha:	2011-12-19
Recurso:	Unversidad Nacional de La Plata