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Aproximadamente 27 registro(s) hasta el momento: (knowledge)

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Fusing Interesting Topics in the Web
Cuevas-Rasgado,A.D. - Guzman-Arenas,A

Formato:	journal article
Enlaces:	A person builds his or her knowledge from different sources of information. In school he learns that Buonarroti was born in Caprese and at home they tell him that the name of the neighbor's dog is Fido. In order to…
Fecha:	2009-03-01
Recurso:	SCIELO

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Ontological representation based on semantic descriptors applied to geographic objects
Torres-Ruiz,Miguel Jesús - Levachkine,Serguei

Formato:	journal article
Enlaces:	In this dissertation the GEONTO-MET methodology is presented. It is oriented to formalize the geographic domain conceptualization according to the specifications of the Instituto Nacional de Estadística, Geografía e Informática (INEGI). The main goal is to provide semantic descriptions, which…
Fecha:	2009-03-01
Recurso:	SCIELO

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Teaching safety precautions in a laboratory DVE: the effects of information location and interactivity
Zayas Pérez,Benjamin - Cox,Richard

Formato:	journal article
Enlaces:	Information location and interactivity are two attributes of desktop virtual environment (DVE) design that can be exploited to enhance the ability of learners to acquire information and skills that transfer to real world. The term "information location" refers to the…
Fecha:	2009-09-01
Recurso:	SCIELO

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Semantic Enterprise Search (but no Web 2.0)
Winnemöller,Ronald

Formato:	journal article
Enlaces:	In this paper, we propose semantic enterprise search as promising technical methodology for improving on accessibility to institutional knowledge. We briefly discuss the nature of knowledge and ignorance in respect to web-based information retrieval before introducing our particular view on…
Fecha:	2009-06-01
Recurso:	SCIELO

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Indexing and Comparison of Multi-Dimensional Entities in a Recommender System based on Ontological Approach
Bakaev,Maxim - Avdeenko,Tatiana

Formato:	journal article
Enlaces:	The paper describes an application of indexing-the technology currently widely used for processing and comparing textual information-to multi-dimensional entities of knowledge domains. We propose a model for building a frame-based ontology, which contains a domain conceptual model as well as…
Fecha:	2013-03-01
Recurso:	SCIELO

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Capillary penetration in cells with periodical corrugations
Sánchez,F.A. - Gutiérrez,G.J. - Medina,A.

Formato:	journal article
Enlaces:	In this work we present a theoretical study of the spontaneous capillary flow of a viscous liquid, developed in the gap between a couple of parallel corrugated plates (corrugated Hele-Shaw cell). The periodical corrugation of the interior walls of the…
Fecha:	2009-12-01
Recurso:	SCIELO

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Bacterial population dynamics and separation of active degraders by stable isotope probing during benzene degradation in a BTEX-impacted aquifer
ABURTO,Arturo - BALL,Andrew S.

Formato:	journal article
Enlaces:	The activity and diversity of a groundwater bacterial community was studied during the degradation of benzene in samples from a BTEX-contaminated aquifer (SIReN, UK) through the use of denaturing gradient gel electrophoresis (DGGE), followed by excision and sequencing of dominant…
Fecha:	2009-08-01
Recurso:	SCIELO

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Teacher knowledge and teaching in Panama and Costa Rica: A comparative study in Primary and Secondary education
Sorto,M. Alejandra - Marshall,Jeffery H. - Luschei,Thomas F. - Martin,Carnoy

Formato:	journal article
Enlaces:	Este estudio tiene como finalidad examinar la relación entre el conocimiento didáctico de las matemáticas, la preparación y las prácticas de los docentes de tercero y séptimo grado en Panamá y Costa Rica. El conocimiento matemático y su didáctica son…
Fecha:	2009-07-01
Recurso:	SCIELO

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Digenean parasites of six species of birds from Formosa Province, Argentina
Lunaschi,Lía Inés - Drago,Fabiana Beatriz

Formato:	journal article
Enlaces:	The aim of this paper is to increase the knowledge of the diversity of digenean parasites from birds collected in Formosa Province, Argentina. The helminthological survey of 15 specimens of 6 bird species revealed the presence of 5 digenean species:…
Fecha:	2009-04-01
Recurso:	SCIELO

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10.

A new leech species of Helobdella (Hirudinea, Glossiphoniidae) from San Carlos de Bariloche, Río Negro, Argentina
Gullo,Bettina S.

Formato:	journal article
Enlaces:	A new freshwater leech species Helobdella fantasmae n. sp. is described. This description is based on the examination of 12 specimens collected in Laguna Fantasma, Bariloche (41° 05'S 71° 28'W), during December 2002. Leeches were found attached to submerged plants.…
Fecha:	2009-04-01
Recurso:	SCIELO

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11.

Disentangling the Wikipedia Category Graph for Corpus Extraction
Ngonga Ngomo,Axel-Cyrille - Schumacher,Frank

Formato:	journal article
Enlaces:	In several areas of research such as knowledge management and natural language processing, domain-specific corpora are required for tasks such as terminology extraction and ontology learning. The presented investigations herein are based on the assumption that Wikipedia can be used…
Fecha:	2009-06-01
Recurso:	SCIELO

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12.

TrainQA: a Training Corpus for Corpus-Based Question Answering Systems
Tomás,David - Vicedo,José L. - Bisbal,Empar - Moreno,Lidia

Formato:	journal article
Enlaces:	This paper describes the development of an English corpus of factoid TREC-like question-answer pairs. The corpus obtained consists of more than 70,000 samples, containing each one the following information: a question, its question type, an exact answer to the question,…
Fecha:	2009-12-01
Recurso:	SCIELO

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13.

Evaluation of E-Learning Readiness: A Study of Informational Behavior of University Students
Brückner,Michael - Tetiwat,Orasa

Formato:	journal article
Enlaces:	In this study we investigated the behavior of university students from different universities and faculties of Thailand with regard to search, evaluate, use and share information. Our goal was to prepare the introduction of personal information management into the e-learning…
Fecha:	2009-12-01
Recurso:	SCIELO

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14.

What do we know about adult mortality and data quality in Peru? Mortality coverage levels and trends from recent decades
Piscoya-Díaz,Mario - Queiroz,Bernardo L.

Formato:	journal article
Enlaces:	Accurate knowledge of adult mortality levels and trends in the developing world is hampered by its widespread lack of complete vital registration systems. Although knowledge of infant and child mortality was once affect by the same problem, survey-based techniques have…
Fecha:	2010-03-01
Recurso:	SCIELO

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15.

Association between smoking and minimal-mild depressive symptomatology in heavy smokers
Moreno Coutiño,Ana - Ruiz Velasco,Silvia - Medina-Mora Icaza,María Elena

Formato:	journal article
Enlaces:	The World Health Organization (WHO) estimates that by the year 2020 tobacco addiction will be responsible for 10 million deaths, seventy percent of which will occur in underdeveloped countries. On the other hand, depression affects about 121 million people worldwide,…
Fecha:	2009-06-01
Recurso:	SCIELO

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16.

Assessment of the origin of microbiological contamination of groundwater at a rural watershed in Chile
Valenzuela,Mariela - Mondaca,María A. - Claret,Marcelino - Pérez,Claudio - Lagos,Bernardo - Parra,Oscar

Formato:	journal article
Enlaces:	In a rural watershed in Chile, the scarce groundwater available represents almost the only water source both for agriculture and domestic use. This water has microbiological quality problems, which result in an agricultural and local economic development constraint. Contamination can…
Fecha:	2009-06-01
Recurso:	SCIELO

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17.

Seeds stored in the forest floor in a natural stand of Pinus montezumae Lamb.
Carrillo-Anzures,Fernando - Vera-Castillo,Gil - Salvador Magaña-Torres,Octavio - Guldin,Jim M. - Guries,Raymond P.

Formato:	journal article
Enlaces:	Seed banks have been studied to a greater extent in agriculture than in forestry due to long-standing concerns about the threat to agricultural crops posed by weed species. However, in forest areas seed banks have an important influence on plant…
Fecha:	2009-12-01
Recurso:	SCIELO

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18.

Learning mathematics with adult learners: drawing from parents' perspective
Díez-Palomar,Javier - Menéndez,José María - Civil,Marta

Formato:	journal article
Enlaces:	This article explores issues related to the relationship between everyday mathematics and academic mathematics within adult education, through a series of workshops with parents. Participants were encouraged to reflect on their perspective on learning and teaching mathematics through different activities…
Fecha:	2011-03-01
Recurso:	SCIELO

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19.

Estimation of soil petrophysical parameters based on electrical resistivity values obtained from lab and in-field measurements
Delgado Rodríguez,Omar - Ladrón de Guevara Torres,María - Shevnin,Vladimir - Ryjov,Albert

Formato:	journal article
Enlaces:	Knowledge of soil petrophysical parameters is very useful for agricultural and environmental impact analysis. Therefore, it is important to develop techniques and methodologies to help obtain soil petrophysical maps both quickly and inexpensively. This paper shows two techniques for estimating…
Fecha:	2012-03-01
Recurso:	SCIELO

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20.

Identification, pathogenicity, and histopathology of Lasiodiplodia theobromae on mamey sapote grafts in Guerrero, México
Tovar-Pedraza,Juan M. - Mora-Aguilera,José A. - Nava-Díaz,Cristian - Téliz-Ortiz,Daniel - Valdovinos-Ponce,Guadalupe - Villegas-Monter,Ángel - Hernández-Morales,Javier

Formato:	journal article
Enlaces:	Dieback of mamey sapote (Pouteria sapota) grafts is the most important disease during vegetative propagation in commercial nurseries. In 2008, Lasiodiplodia theobromae identified by cultural, morphological and molecular characterization was associated with this disease in 97 % of necrotic rootstocks…
Fecha:	2012-03-01
Recurso:	SCIELO

Recurso libre

21.

Cognitive Maps: an Overview and their Application for Student Modeling
Peña,Alejandro - Sossa,Humberto - Gutiérrez,Agustin

Formato:	journal article
Enlaces:	In this paper we state how Cognitive Maps can be used to model causal phenomena. In addition, we show the application of the Cognitive Maps to the field of the Student Modeling. Conceptually speaking, Cognitive Maps set and simulate the…
Fecha:	2007-03-01
Recurso:	SCIELO

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22.

Backpropagation through Time Algorithm for Training Recurrent Neural Networks using Variable Length Instances
Grau,Isel - Nápoles,Gonzalo - Bonet,Isis - García,María Matilde

Formato:	journal article
Enlaces:	Artificial Neural Networks (ANNs) are grouped within connectionist techniques of Artificial Intelligence. In particular, Recurrent Neural Networks are a type of ANN which is widely used in signal reproduction tasks and sequence analysis, where causal relationships in time and space…
Fecha:	2013-03-01
Recurso:	SCIELO

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23.

Reaching High Interactive Levels with Situated Agents
Ibarra-Martínez,S. - Castán-Rocha,J.A. - Laria-Menchaca,J. - Guzmán-Obando,J. - Castán-Rocha,E.

Formato:	journal article
Enlaces:	The paper presents a coordinated process through which the situated agents are capable of working jointly using knowledge about their skills to interact with other similar entities. A good coordination is reached because each situated agent is able to represent…
Fecha:	2013-03-01
Recurso:	SCIELO

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24.

Spontaneous rupture of an aneurysm of the sinus of Valsalva into the right atrium, associated with an atrial septal aneurysm
López-Velarde B,Pedro - Avila-Vanzzini,Nydia - López-Velarde Peña,Tatiana - Dabaghi-Richerand,Alejandro - López-Soriano,Fernando - Espinola-Zavaleta,Nilda

Formato:	journal article
Enlaces:	Aneurysms of the sinus of Valsalva (SV) and the atrial septum are a rare association. We report the case of a 28-year-old woman, who was admitted to our department complaining of progressive dyspnea of 10 days of evolution, five hours…
Fecha:	2011-03-01
Recurso:	SCIELO

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25.

Anion Exchange Behaviour of Zr, Hf, Nb, Ta and Pa as Homologues of Rf and Db in Fluoride Medium
Monroy-Guzman,Fabiola - Trubert,Didier - Brillard,Lucette - Hussonnois,Michel - Constantinescu,Olimpus - Le Naour,Claire

Formato:	journal article
Enlaces:	Studies of the chemical property of transactinide elements are very difficult due to their short half-lives and extremely small production yields. However it is still possible to obtain considerable information about their chemical properties, such as the most stable oxidation…
Fecha:	2010-03-01
Recurso:	SCIELO

Recurso libre

26.

Molecular Biology of Chili Pepper Anthocyanin Biosynthesis
Aza-González,César - Núñez-Palenius,Héctor Gordon - Ochoa-Alejo,Neftalí

Formato:	journal article
Enlaces:	Chili pepper (Capsicum spp.) is an important horticultural crop worldwide. Chili pepper fruits from different Capsicum species have been highly consumed in Rexico since pre-Columbian times. Some Capsicum species synthesize and accumulate anthocyanins in different tissues and organs. Although the…
Fecha:	2012-03-01
Recurso:	SCIELO

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27.

Semantic Representation of Raster Spatial Data
Quintero Téllez,Rolando

Formato:	journal article
Enlaces:	When people think spatially, they do not usually consider geographic coordinates nor projections. Facing questions having a spatial sense, people do not answer with maps or coordinates, but use some references whose spatial location is "well known". For instance, the…
Fecha:	2011-03-01
Recurso:	SCIELO