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Aproximadamente 20 registro(s) hasta el momento: (knowledge)

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Recurso libre

Cerebral ischemia: some secondary alterations and animal models
López-Hernández,María Estela - Solís,Hugo

Formato:	journal article
Enlaces:	Stroke is a leading cause of morbidity and mortality in industrialized countries. It imposes an enormous economic burden on the families of patients and on society. The purpose of this review is to give an overview about diverse animal models…
Fecha:	2005-07-01
Recurso:	SCIELO

Recurso libre

Foliar micromorphology of Mexican oaks (Quercus: Fagaceae)
Scareli-Santos,Claudia - Sánchez-Mondragón,María L. - González-Rodríguez,Antonio - Oyama,Ken

Formato:	journal article
Enlaces:	Mexico is the main center of diversity of the genus Quercus in the Western Hemisphere. Despite recent advances in the knowledge of Mexican oaks, a degree of taxonomic confusion still remains, mainly within particular species complexes. In this study, scanning…
Fecha:	2013-07-01
Recurso:	SCIELO

Recurso libre

CRIB: A Method for Integrity Constraint Checking on Knowledge Bases
Clemente,Julia - de Antonio,Angélica - Ramírez,Jaime

Formato:	journal article
Enlaces:	The necessity of verification tools for Knowledge Based-Systems (KBSs), that help to guarantee a certain degree of quality and reliability of these systems will increase in the future when more critical systems are developed in areas such as industry, science,…
Fecha:	2005-06-01
Recurso:	SCIELO

Recurso libre

Diverticulum of Kommerell
Calderón-Colmenero,Juan - Muñoz,Luis - García-Montes,José A - Ramírez,Samuel - Patino,Emilia - Buendía,Alfonso

Formato:	journal article
Enlaces:	A case of an 11-months-old girl with vomiting and laryngeal stridor is presented, and in whom a Kommerell diverticulum was demonstrated, which is a rare variant of the incomplete vascular ring. It is well known that the magnetic resonance is…
Fecha:	2005-12-01
Recurso:	SCIELO

Recurso libre

Ethical aspects of the extreme premature newborn
Hernández- Arriaga,Jorge L. - Iserson,Kenneth V

Formato:	journal article
Enlaces:	As neonatology continues to advance medical knowledge and situations surrounding the care of ill and premature newborns, each step introduces ill- defined methodologies, unknown outcomes, and increasing costs. In countries such as Mexico, the government hospitals assume the cost of…
Fecha:	2005-08-01
Recurso:	SCIELO

Recurso libre

Interpretation and Social Knowledge: On the Use of Theory in the Human Sciences
Arteaga Botello,Nelson

Formato:	journal article
Enlaces:	Descripción completa.
Fecha:	2013-04-01
Recurso:	SCIELO

Recurso libre

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

Recurso libre

A Knowledge-Base Oriented Approach for Automatic Keyword Extraction
Jean-Louis,Ludovic - Gagnon,Michel - Charton,Eric

Formato:	journal article
Enlaces:	Automatic keyword extraction is an important subfield of information extraction process. It is a difficult task, where numerous different techniques and resources have been proposed. In this paper, we propose a generic approach to extract keyword from documents using encyclopedic…
Fecha:	2013-06-01
Recurso:	SCIELO

Recurso libre

Evaluation of climatic forecasts of rainfall for the Tlaxcala State (México): 1998-2002
Gay-García,C. - Hernández-Vázquez,M. - Jiménez-López,J. - Lezama-Gutiérrez,J. - Magaña-Rueda,V. O. - Morales-Acoltzi,T. - Orozco-Flores,S.

Formato:	journal article
Enlaces:	During the second semester of 1997 the project "Utilización de pronósticos climáticos para actividades agrícolas en Tlaxcala" was instrumented with the purpose of aiding decision making in agricultural activities in the estate of Tlaxcala, México. The main objective of the…
Fecha:	2004-07-01
Recurso:	SCIELO

Recurso libre

10.

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

Recurso libre

11.

Single-Document Keyphrase Extraction for Multi-Document Keyphrase Extraction
Berend,Gábor - Farkas,Richárd

Formato:	journal article
Enlaces:	Here, we address the task of assigning relevant terms to thematically and semantically related sub-corpora and achieve superior results compared to the baseline performance. Our results suggest that more reliable sets of keyphrases can be assigned to the semantically and…
Fecha:	2013-06-01
Recurso:	SCIELO

Recurso libre

12.

Discourses and polarities concerning health promotion in the Brazilian health system
Luciana,Kind - Neto,João Leite Ferreira

Formato:	journal article
Enlaces:	This paper presents theoretical reflections on health promotion in the Brazilian public health context. Some characteristics and problems of the international debate are highlighted, but our focus is the position of health promotion as it is discussed in the Brazilian…
Fecha:	2013-08-01
Recurso:	SCIELO

Recurso libre

13.

Morphology of the first and second instars larvae of Peckia (Peckia) chrysostoma (Wiedemann, 1830) (Diptera, Sarcophagidae)
Buenaventura,Eliana

Formato:	journal article
Enlaces:	The morphology of larval stages of Diptera (Insecta) is little known, especially in the case of Sarcophagidae family larvae. Interest in sarcophagid larvae studies has increased with the step forward of forensic entomology, where they are considered potential indicators of…
Fecha:	2013-04-01
Recurso:	SCIELO

Recurso libre

14.

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

Recurso libre

15.

A Supervised Approach for Reconstructing Thread Structure in Comments on Blogs and Online News Agencies
Balali,Ali - Faili,Hesham - Asadpour,Masoud - Dehghani,Mostafa

Formato:	journal article
Enlaces:	There is a great deal of knowledge in online environments such as forums, chats and blogs. A large volume of comments with different subjects on a page has created a lot of complexity in following the actual conversation streams, since…
Fecha:	2013-06-01
Recurso:	SCIELO

Recurso libre

16.

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

Recurso libre

17.

Analysis of indices of extreme temperature events at Apizaco, Tlaxcala, Mexico: 1952-2003
LÓPEZ-DÍAZ,F. - CONDE,C.

Formato:	journal article
Enlaces:	In recent years in Mexico and around the world, the scientific community has shown great interest in acquiring knowledge regarding the behavior of extreme climate events due to their increasing number and intensity. The objective of this research was to…
Fecha:	2013-06-01
Recurso:	SCIELO

Recurso libre

18.

Climate change and its effects on urban spaces in Chile: A summary of research carried out in the period 2000-2012
MONSALVES-GAVILÁN,P. - PINCHEIRA-ULBRICH,J. - ROJO MENDOZA,F.

Formato:	journal article
Enlaces:	We have systematized the effects associated with climate change on urban spaces in Chile reported between 2000 and 2012. The method was based on a review of scientific articles in three databases (Scopus, Web of Knowledge and Scielo) using 32…
Fecha:	2013-10-01
Recurso:	SCIELO

Recurso libre

19.

Adolescent adjustment in at-risk families: The role of psychosocial stress and parental socialization
Lorence Lara,Bárbara - Hidalgo García,Ma. Victoria - Dekovic,Maja

Formato:	journal article
Enlaces:	Introduction The study of factors associated with internalizing and externalizing problems in adolescents living in at-risk families is a subject of recent interest in mental health in Spain. The presence of mental health problems in children and adolescents is too…
Fecha:	2013-02-01
Recurso:	SCIELO

Recurso libre

20.

Chlorine in the stratosphere
VON CLARMANN,T.

Formato:	journal article
Enlaces:	This paper reviews the various aspects of chlorine compounds in the stratosphere, both their roles as reactants and as tracers of dynamical processes. In the stratosphere, reactive chlorine is released from chlorofluorocarbons and other chlorine-containing organic source gases. To a…
Fecha:	2013-06-01
Recurso:	SCIELO