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Aproximadamente 44 registro(s) hasta el momento: (knowledge)

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Recurso libre

A graphic tool for ontology viewing based on graph theory
Stradiotto, César - Pacheco, Everton - Bortolon, Andre - Hoeschl, Hugo Cesar

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The Knowledge Engineering Suite is an ontology production method, based on relationship networks, for knowledge representation inside specific contexts. The production of these ontologies has three basic steps, since catching the client data, knowledge base creation, and information retrieval and…
Fecha:	2012-11-15
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Revisions of orders in dynamic systems
Falappa, Marcelo Alejandro - Simari, Patricio D.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Current reasoning systems attempt to model an agent's knowledge and interaction with its environment in a symbolic manner. This environment, its world is generally dynamic and changing due to natural evolution or the actions of other agents that are a…
Fecha:	2012-09-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Rethinking logics and regimes of geo-economics: national competitiveness in the borderless global knowledge
Uttam, Jitendra

Formato:	Articulo, Articulo
Enlaces:	This paper aims to clarify an economic mechanism behind the growing dichotomy between geo-economics and the borderless global knowledge economy. The proposed hypothesis is that geo-economic fault-lines, which are the product of the past prejudices of racial, linguistic, and cultural…
Fecha:	2013-02-25
Recurso:	Unversidad Nacional de La Plata

Recurso libre

A comparison between non-monotonic formalisms
Delladio, Telma - Rotstein, Nicolás D. - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	It is interesting and important to compare, analyze and assess the alternative tools that could be used in the area of Knowledge Representation. In this paper we present a reasearch line associated to this goal: to formally establish the relation…
Fecha:	2012-09-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Identification of important news for exchange rate modeling
Zhang, Debbie - Simoff, Simeon - Debenham, John

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Associating the pattern in text data with the pattern with time series data is a novel task. In this paper, an approach that utilizes the features of the time series data and domain knowledge is proposed and used to identify…
Fecha:	2012-11-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Intel Xeon Phi Coprocessor High Performance Programming
More, Andres

Formato:	Articulo, Revision
Enlaces:	James Reinders (Chief Evangelist of Intel® Software at Intel) and Jim Jeffers (Principal Engineer at Intel) have gathered in this book the working knowledge of the people involved to prototype and productize the Intel® Xeon Phi coprocessor. This include…
Fecha:	2013-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Towards a comparison criteria for CDeLP
Cobo, María Laura - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The development of systems with the ability to reason about change notion and actions has been of great importance for the artificial intelligence community. The definition and implementation of systems capable of managing defeasible, incomplete, unreliable, or uncertain information has…
Fecha:	2012-10-29
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Dynamic comunication mechanism of a distributed DSS: the information retrieval process of the router agent
Stegmayer, Georgina - Taverna, María Laura - Chiotti, Omar Juan Alfredo - Galli, María Rosa

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	We have developed a distributed DSS able to work in a dynamic way. This system is based on the use of mobile agents, which receive the user's queries and visit the DSS domains gathering the required information. One of the…
Fecha:	2012-11-06
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Evaluation of the antioxidant and phototoxic potentials of Bauhinia microstachya var. massambabensis Vaz leaf extracts
Mansur, Maria Cristina.P.P.R. - Leitão, Susana G. - Lima, Luis M.T.R. - Ricci-Júnior, Eduardo - Souza, Gabriela R. de - Barbi, Nancy dos S. - Martins, Tathiana S. - Dellamora Ortiz, Gisela M. - Leo, Rodrigo R. T. - Vieira, Ricardo C. - Leitão, Gilda G. - Santos, Elizabete P.

Formato:	Articulo, Articulo
Enlaces:	Four different leaf extracts of B. microstachya var. massambabensis were studied to evaluate their antioxidant capacity by using three in vitro methods, with Ginkgo biloba and Trolox® as the standards. With the DPPH and ABTS·+ methods, the antioxidant activity of…
Fecha:	2012-05-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

10.

Proposal of fuzzy logic-based students' learning assessment model
Huapaya, Constanza Raquel

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The cognitive diagnosis is defined as the abstract process of gathering information about the student's learning and transforming that information based on instructional decisions. A model that captures the expert knowledge of experienced professors and is used to design a…
Fecha:	2012-11-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

Finite Presheaf categories as a nice setting for doing generic programming
Menni, Matías

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The purpose of this paper is to describe how some theorems about constructions in categories can be seen as a way of doing generic programming. No prior knowledge of category theory is required to understand the paper. We explore the…
Fecha:	2012-11-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

Becoming a person from Mbya Guarani perspective (Misiones Province, Argentina)
Remorini, Carolina

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The aim of this paper is to describe and discuss some results from an ethnographic research on Argentinian Mbya communities focused on representations and practices related to childrearing and development during the first stages of life course. Firstly, I describe…
Fecha:	2012-02-22
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

Actual knowledge of Oligocene origin of sloths
Pujos, Francisco - De Iuliis, Gerardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Tardigrades constitute one of three clades of Xenarthra. Whereas modern tree sloths are common in the Amazonian Basin, their giant ground sloth "kin" were abundant throughout the Americas. During the Miocene, sloths were conspicuous faunal elements in Patagonia, generally considered…
Fecha:	2010-11-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

Autonomous search and rescue rotorcraft mission stochastic planning with generic DBNs
Fabiani, Patrick - Teichteil-Königsbuch, Florent

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This paper proposes an original generic hierarchical framework in order to facilitate the modeling stage of complex autonomous robotics mission planning problems with action uncertainties. Such stochastic planning problems can be modeled as Markov Decision Processes [5]. This work is…
Fecha:	2012-11-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

Reusing optimal TSP solutions for locally modified input instances
Hromkovič, Juraj - Böckenhauer, Hans-Joachim - Forlizzi, Luca - Kneis, Joachim - Kupke, Joachim - Proietti, Guido - Widmayer, Peter

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Given an instance of an optimization problem together with an optimal solution, we consider the scenario in which this instance is modified locally. In graph problems, e. g., a singular edge might be removed or added, or an edge weight…
Fecha:	2012-11-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

A cognitive model of user interaction as a guideline for designing novel interfaces
Aguilera, Felipe - Alarcón, Rosa A. - Guerrero, Luis A. - Collazos, Cesar A.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Adaptive systems behavior based on user models appear promising, mostly for complex environments such as mixed reality environments (MRE). An MRE comprises a virtual representation of the reality as well as physical objects augmented with virtual features. These objects are…
Fecha:	2012-11-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Permo-Triassic cynodonts from Gondwana
Abdala, Fernando

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Recent contributions to the knowledge of Gondwanan cynodonts highlight the presence in Africa of taxa previously recognized in South America and vice-versa. This is the case for the Middle Triassic Namibian fauna from the upper Omingonde Formation, where the first…
Fecha:	2010-11-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

Post-Permian tetrapod record in the Ischigualasto-Villa Unión Basin (Talampaya and Tarjados Formations, northwestern Argentina)
Domnanovich, Nadia - Mancuso, Adriana Cecilia - Schultz, C. - Krapovickas, Verónica - Gaetano, L. - Leardi, J. M

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Talampaya and Tarjados Formations correspond to the initial stage of the Ischigualasto-Villa Unión Basin filling, and record the oldest post-Permian events in the region. The sequence consists of red beds deposited essentially by ephemeral alluvial and fluvial systems, and overlay…
Fecha:	2010-11-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

Fossil chironomids and ostracods from a 5000 years- sediment sequence of Laguna El Chaltel, southern Patagonia, Argentina
Massaferro, Julieta - Laprida, Cecilia - Orpella, Germán - Mercau, J. Ramón

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Lakes are excellent sensors of environmental change, including climate change. Chironomids (Insecta, Diptera) and ostracods (Crustacea) are among the most useful biological indicators for paleoenvironmental reconstruction found in lake sediments, due to their sensitiveness to environmental variables. However, the use…
Fecha:	2010-12-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

Solving constrained optimization using a T-Cell artificial immune system
Aragón, Victoria S. - Esquivel, Susana Cecilia

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In this paper, we present a novel model of an artificial immune system (AIS), based on the process that suffers the T-Cell. The proposed model is used for solving constrained (numerical) optimization problems. The model operates on three populations: Virgins,…
Fecha:	2012-10-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

The austral components of the Neogene South American crocodylian fauna: the northeast Miocene-Pliocene Argentinean record
Bona, Paula - Riff, Douglas

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	During the last years the knowledge about derived eusuchian crocodiles has been increased. Anatomical and phylogenetic approaches as well as new fossil records have lighted the evolutive and biogeographic history of several groups. In this way, paleontological research on Miocene-Pliocene…
Fecha:	2010-12-06
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Discovering geographic services from textual use cases
Saldaño, Viviana E. - Buccella, Agustina - Cechich, Alejandra

Formato:	Articulo, Articulo
Enlaces:	Component Based Software Development (CBSD) relies upon utilization of previously developed software components OTS (Off-The-Shelf), which are appropriately merged to satisfy particular system requirements. However, wide acceptance of this paradigm at industry requires efficient component identification and selection, aspects which…
Fecha:	2010-06-14
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

Approximation to the dynamic hypermedial device modeling for the analysis of interactions
Rodríguez, Guillermo L. - San Martín, Patricia S.

Formato:	Articulo, Articulo
Enlaces:	The following research proposes a first approximation to the Dynamic Hypermedial Device modeling based on the analysis of interactions. In addition, the DEVS (Discrete EVents dynamic Systems) formalism is employed, which is particularly suitable for the modeling of discrete event…
Fecha:	2010-10-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

Upper Ordovician (Sandbian) gastropods from redeposited boulders in the Don Braulio Formation, Argentine Precordillera
Bertero, Verónica

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The glacigenic boulders from the Hirnantian Don Braulio Formation of the Argentine Precordillera contain a well preserved shelly fauna allowing to a better knowledge of brachiopods and bivalves, but gastropods remain undescribed. The purpose of this paper is to give…
Fecha:	2011-02-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Local-as-view integration of ontologies in defeasible logic programming
Gómez, Sergio Alejandro - Chesñevar, Carlos Iván - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Ontology integration is the problem of combining data sources in the SemanticWeb. Concepts in source ontologies are captured in terms of concepts de ned in a global ontology. When some of these ontologies are inconsistent, the knowledge engineer often has…
Fecha:	2012-07-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

Society, family and learning: the role of home literacy environments
Querejeta, Maira

Formato:	Articulo, Articulo
Enlaces:	This paper explores the relation between society, family, and learning. In particular, it addresses the features of home literacy environments in low income families and their impact on children's pre-literacy skills and knowledge. Sixty-two four/five-year-old children and their mothers were…
Fecha:	2012-04-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

27.

Microscopic characters of the leaf and stem of Brunfelsia pilosa Plowman (solanaceae)
Duarte, Márcia do Rocio - Wolf, Samantha

Formato:	Articulo, Comunicacion
Enlaces:	Species of Brunfelsia, whose flowers change colour progressively from violet to white, are popularly known as yesterday-today-tomorrow and used in folk medicine, mainly as anesthetic and diuretic. Based on ethnobotanical surveys, they have been investigated chemically and pharmacologically for expanding…
Fecha:	2010-11-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

Taphonomy and paleoecology of a late Pleistocene megafaunal tar seep locality from Santa Elena, Ecuador
Lindsey, Emily

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Although South America lost more megafaunal genera than any other continent during the Late-Quaternary Extinction event (LQE), little is known about the chronology, causes or dynamics of these extinctions, especially in the northern part of the continent. Fossil deposits in…
Fecha:	2011-02-04
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Family diversity in social exclusion situations: results and reflections on research, teaching and knowledge transfer activities
González Oddera, Mariela - Delucca, Norma Edith

Formato:	Articulo, Articulo
Enlaces:	The purpose of this paper is to characterize the configurations of the families that live in contexts of social exclusion; provide conceptualizations of their operation mode; highlight the formative effects that neighborhood interdisciplinary practices with such families produce in the…
Fecha:	2012-03-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

Preliminar results on the vertebrate fauna of the Solimões Formation (upper Miocene), southwestern Amazonia, Acre, Brazil
Aureliano Neto, T. - Dumont Junior, M. V. - Souza Filho, J. P.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The Paleontology teams at the Universidade Federal do Acre (UFAC) and the Universidade de Brasília (UnB) worked together in order to increase macro and micropaleontological knowledge of the late Miocene rocks exposed at Niterói (10º08'30''S-67º48'46,3''W), on the right margin of…
Fecha:	2011-03-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

Profiling MPI applications with mixed instrumentation
Grosclaude, Eduardo - Zanellato, Claudio - Balladini, Javier - Castillo, Rodolfo del - Castro, Silvia Mabel

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Our research project intends to build knowledge about HPC problems to be able to help local researchers. In order to advise users in choosing parallel machines to run their applications, we want to establish a general methodology, requiring as shallow…
Fecha:	2012-07-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

Constraints to Uranus' Great Collision III: The Origin of the Outer Satellites
Brunini, Andrea - Parisi, M. Gabriela - Tancredi, G.

Formato:	Articulo, Articulo
Enlaces:	The theory of satellite loss resulting from a giant impact on Uranus (Parisi and Brunini 1997, Planet. Space Sci. 45, 181–187) is revisited, in the light of the discovery of its five outer moons (Gladman et al. 1998, Nature 392,…
Fecha:	2010-10-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

SME access to credit in Guatemala and Nicaragua: challenging conventional wisdom with new evidence
Bebczuk, Ricardo Nestor

Formato:	Articulo, Documento de trabajo
Enlaces:	This paper develops a conceptual framework and offers new statistical evidence on the access to credit by micro, small, and medium enterprises (MSMEs) in Guatemala and Nicaragua. To this end, and after reviewing the existing literature on the topic, it…
Fecha:	2010-06-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Predation by Corallus annulatus (Boidae) on Rhynchonycteris naso (Emballonuridae) in a lowland tropical wet forest, Costa Rica
Lewis, Todd R. - Nash, Darryn J. - Grant, Paul B. C.

Formato:	Articulo, Comunicacion
Enlaces:	Corallus annulatus (Northern Annulated Tree-boa) is a little-studied tropical Boid occurring disjunctively throughout Central America and tropical South America in mostly lowland tropical moist and wet forests (Holdridge, 1967; Stafford & Henderson, 1996; Smith & Acevedo, 1997; Henderson et al.,…
Fecha:	2010-12-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

The understanding of information about oral chemotherapy treatment among outpatients at a University Hospital in Ceará, Brazil
Pereira, Ana G. da S. - Gadêlha, Paulo G.C. - Néri, Eugenie D.R. - Nogueira, Tiago A. - Neto, José W. O. - Fonteles, Marta M. F.

Formato:	Articulo, Articulo
Enlaces:	This study assessed the understanding of information about oral chemotherapy treatment, among patients attending the hematology outpatients' ward of a University hospital. A questionnaire with patient data and details of the treatment was applied to 147 outpatients. The analysis of…
Fecha:	2011-01-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

Determinants of the decision to go to college in Argentina, Determinantes del nivel de asistencia al nivel superior de educación
Ripani, Laura

Formato:	Tesis, Tesis de maestria
Enlaces:	Increasing attention to higher education policies in the knowledge-based society makes important to understand the relationship between socio-economic family characteristics and educational choices. This paper considers the decision to go to college in Argentina as a family's economic decision. The…
Fecha:	2010-07-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

Pensions and saving: new international panel data evidence
Bebczuk, Ricardo Nestor - Musalem, Alberto

Formato:	Articulo, Documento de trabajo
Enlaces:	This paper contributes to the empirical literature on pensions and saving by studying the influence of funded pension systems on the gross national saving rate using a sample of 48 developed and developing countries over the 1980-2004 period. To the…
Fecha:	2010-06-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

38.

Factor endowments, inequality, and paths of development among new world economies
Engerman, Stanley L. - Sokoloff, Kenneth L.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Whereas traditional explanations of differences in long-run paths of development across the Americas generally point to the significance of differences in national heritage or religion, we highlight the relevance of stark contrasts in the degree of inequality in wealth, human…
Fecha:	2010-06-17
Recurso:	Unversidad Nacional de La Plata

Recurso libre

39.

Genomic and darwinian medicine
Salzano, Francisco M

Formato:	Articulo, Articulo
Enlaces:	Genomic and darwinian medicine deal with the application of hereditary and evolutionary principles for the understanding of health and disease. The progress in molecular and bioinformatic knowledge is making possible through a holistic approach to biological phenomena and one aspect…
Fecha:	2010-11-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

On the population, physical decay and orbital distribution of Jupiter family comets: numerical simulations
Di Sisto, Romina Paula - Fernández, Julio A. - Brunini, Adrián

Formato:	Articulo, Articulo
Enlaces:	We study the Jupiter family comet (JFC) population assumed to come from the Scattered Disk and transferred to the Jupiter’s zone through gravitational interactions with the Jovian planets. We shall define as JFCs those with orbital periods P<20yr and Tisserand…
Fecha:	2010-10-05
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Composite undergraduate clinical examinations: how should the components be combined to maximize reliability?
Wass, Val - McGibbon, David

Formato:	Articulo, Articulo
Enlaces:	Background: Clinical examinations increasingly consist of composite tests to assess all aspects of the curriculum recommended by the General Medical Council. Setting: A final undergraduate medical school examination for 214 students. Aim: To estimate the overall reliability of a composite…
Fecha:	2010-03-04
Recurso:	Unversidad Nacional de La Plata

Recurso libre

42.

Morphometrics of teropodomorph isolated teeth material from Bauru Basin (Upper Cretaceous, Southeast Brazil)
Ghilardi, A. M. - Pimenta, Bernardo - Fernandes, Marcelo A.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The theropod material of the Bauru Basin consists mainly of isolated teeth, bone elements being rare, generally isolated and fragmented. The best known theropod of the unity is Pycnonemosaurus nevesi, an abelisaurid described based on some fragmented elements. An ungeal…
Fecha:	2011-04-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

43.

The role of the proteinase inhibitor ovorubin in apple snail eggs resembles plant embryo defense against predation
Dreon, Marcos S. - Ituarte, Santiago - Heras, Horacio

Formato:	Articulo, Articulo
Enlaces:	Background: Fieldwork has thoroughly established that most eggs are intensely predated. Among the few exceptions are the aerial egg clutches from the aquatic snail Pomacea canaliculata which have virtually no predators. Its defenses are advertised by the pigmented ovorubin perivitellin…
Fecha:	2013-09-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

Temporal variation and size class distribution in a herpetological assemblage from Córdoba, Argentina
Martori, Ricardo - Aun, Liliana - Gallego, Fernando L. - Rozzi Giménez, Cristina

Formato:	Articulo, Articulo
Enlaces:	Desde el punto de vista de la conservación, conocer la abundancia, la diversidad, y los patrones de actividad de un ensamble herpetológico son medulares para comprender la dinámica de la comunidad y el modo de cómo es utilizado el hábitat.…
Fecha:	2010-11-17
Recurso:	Unversidad Nacional de La Plata