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Aproximadamente 21 registro(s) hasta el momento: (knowledge)

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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

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

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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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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

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Doughnut shape atom traps with arbitrary inclination
Rodríguez y Masegosa,R. - Moya-Cessa,H. - Chávez-Cerda,S.

Formato:	journal article
Enlaces:	Since the invention of magneto-optical trap (MOT), there have been several experimental and theoretical studies of the density distribution in these devices. To the best of our knowledge, only horizontal orbital traps have been observed, perpendicular to the coil axis.…
Fecha:	2006-02-01
Recurso:	SCIELO

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Low-complexity chaotic encryption system
Hasimoto-Beltrán,R

Formato:	journal article
Enlaces:	Secure multimedia communication presents new challenges that are difficult to handle using by currently adopted encryption schemes (RSA-Rivest-Shamir-Adelman, AES-Advanced Encryption Standard, and IDEA-International Data Encryption algorithm) (28). It requires the processing of huge amounts of information at speeds ranging from…
Fecha:	2007-02-01
Recurso:	SCIELO

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Analysis and correction of track overlapping on nuclear track detectors (SSNTD)
Palacios,D. - Sajo-Bohus,L. - Barros,H. - Fusella,E. - Avila,Y.

Formato:	journal article
Enlaces:	The problem of nuclear track overlapping is addressed assuming the stochastic character of charged particle registry and the fact that even monoenergetic beam perpendicularly impacting on detector surface will show a distribution for track radius values. Asymmetric distributions of overlapping…
Fecha:	2011-02-01
Recurso:	SCIELO

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The sexual and reproductive health of young people in Latin America: evidence from WHO case studies
Kostrzewa,Kate

Formato:	journal article
Enlaces:	This original article addresses the sexual and reproductive health needs of young people aged 15 to 24 in Latin America. It introduces five articles from original research projects in three countries: Argentina, Brazil, and Peru. These projects were funded by…
Fecha:	2008-02-01
Recurso:	SCIELO

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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

10.

Neutron spectrometry using artificial neural networks for a bonner sphere spectrometer with a ³He detector
Ortíz-Rodríguez,J.M. - Martínez-Blanco,M.R. - Vega-Carrillo,H.R. - Gallego Díaz,E. - Lorente Fillol,A. - Méndez Villafañe,R. - Los Arcos Merino,J.M. - Guerrero Araque,J.E.

Formato:	journal article
Enlaces:	Neutron spectra unfolding and dose equivalent calculation are complicated tasks in radiation protection, are highly dependent of the neutron energy, and a precise knowledge on neutron spectrometry is essential for all dosimetry-related studies as well as many nuclear physics experiments.…
Fecha:	2011-02-01
Recurso:	SCIELO

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11.

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

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12.

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

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13.

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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14.

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

15.

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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16.

Effect of acupuncture treatment on depression: Correlation between psychological outcomes and salivary cortisol levels
Vázquez,Roxana D. - González-Macías,Laura - Berlanga,Carlos - Aedo,Francisco J.

Formato:	journal article
Enlaces:	Introduction There are growing scientific data that show the potential therapeutic benefit of treating depression with acupuncture. The most studied mechanisms of action of antidepressants, such as the monoamine oxidase inhibitors, tricyclic antidepressants or serotonine reuptake inhibitors, are their ability…
Fecha:	2011-02-01
Recurso:	SCIELO

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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

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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

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19.

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

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20.

Body dissatisfaction and perceived sociocultural pressures: gender and age differences
Esnaola,Igor - Rodríguez,Arantzazu - Goñi,Alfredo

Formato:	journal article
Enlaces:	One important area of research that has emerged in recent years is the assessment of factors that contribute to the development of body image problems and, more concretely, to the development of body dissatisfaction. The female sociocultural beauty ideal, a…
Fecha:	2010-02-01
Recurso:	SCIELO

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21.

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