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Aproximadamente 29 registro(s) hasta el momento: (knowledge)

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Cervical cancer and the HPV link: identifying areas for education in Mexico City's public hospitals
Aldrich,Tess - Landis,Sarah - García,Sandra G. - Becker,Davida - Sanhueza,Patricio - Higuera,Anjarath

Formato:	journal article
Enlaces:	OBJECTIVE:To assess Mexico City physicians' knowledge and practices regarding cervical cancer and human papillomavirus (HPV) to compare obstetricians/gynecologists (ob/gyns) and general practitioners (GPs) on these variables MATERIAL AND METHODS: In April 2003, 187 ob/gyns and GPs working in 15 hospitals…
Fecha:	2006-06-01
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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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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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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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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Archaeological calibration of remagnetized volcanic rocks from pottery firing kilns in Cuentepec, Morelos, Mexico
Alva-Valdivia,L. M - González-Rangel,J. A - Soler-Arechalde,A. M - López-Varela,S. L - López-Loera,H

Formato:	journal article
Enlaces:	Ethnoarchaeological research at the site of Cuentepec, Mexico includes experimental pottery dating in which social knowledge is obtained from archaeometric techniques. At Cuentepec, open kilns are used for firing pottery. Samples from volcanic rocks in the kilns were taken to…
Fecha:	2006-12-01
Recurso:	SCIELO

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High resolution (3+1) REMPI and dissociation of acetone via 3pn Rydberg transitions
Mejía-Ospino,E. - Álvarez,I. - Cisneros,C.

Formato:	journal article
Enlaces:	Measurements of multiphoton ionization and dissociation of acetone are reported in the wavelength range 490.0-510.0 nm at 1 nm intervals. To our knowledge there are no available results of (3+1) REMPI on acetone in this region. The experiments were performed…
Fecha:	2006-08-01
Recurso:	SCIELO

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A new genus and species of crab from the bryozoan bioherms of the Eocene Santee Limestone; South Carolina, USA
Bishop,Gale A - Palmer,Billy T

Formato:	journal article
Enlaces:	The fossil crab Propinnotheroides orangeburgensis is described from the Eocene Santee Limestone in Orangeburg County, South Carolina. The specimens, two nearly complete carapaces preserved in lithified coquina, add significant detail to our knowledge of the Eocene decapod faunas inhabiting the…
Fecha:	2006-01-01
Recurso:	SCIELO

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Intelligent Techniques for R & D Project Selection in Large Social Organizations
Fernandez,Eduardo - Lopez,Fernando - Navarro,Jorge - Duarte,Alfonso

Formato:	journal article
Enlaces:	Funding R&D projects is perhaps the most important task faced by large public organizations, in charge of promoting science and technology in different countries. However, most popular ways to solve this decision problem are based on too simple decision models…
Fecha:	2006-09-01
Recurso:	SCIELO

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10.

Continuous groups of transformations and time-dependent invariants
Gelover-Santiago,A.L. - Corona-Galindo,M.G.

Formato:	journal article
Enlaces:	In this paper we present a very simple derivation of the constants of motion for dynamical systems, which requires only an elementary knowledge of the theory of continuous groups. In addition, through the infinitesimal Lorenz transformations group, we obtain a…
Fecha:	2007-06-01
Recurso:	SCIELO

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11.

Smokers' reactions to cigarette package warnings with graphic imagery and with only text: a comparison between Mexico and Canada
Thrasher,James F - Hammond,David - Fong,Geoffrey T - Arillo-Santillán,Edna

Formato:	journal article
Enlaces:	OBJECTIVE: This comparison of population-based representative samples of adult smokers in Canada (n=1 751) and Mexico (n=1 081) aimed to determine whether cigarette packages with graphic warning labels in Canada had a stronger impact than the text-only warning labels in…
Fecha:	2007-01-01
Recurso:	SCIELO

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12.

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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13.

On the potential of an infinite dielectric cylinder and a line of charge: Green's function in an elliptic coordinate approach
Marín,J.L. - Marín-Enriquez,I. - Riera,R. - Pérez-Enriquez,R.

Formato:	journal article
Enlaces:	A two-dimensional Laplace equation is separable in elliptic coordinates and leads to a Chebyshev-like differential equation for both angular and radial variables. In the case of the angular variable η (-1 < η < 1), the solutions are the well…
Fecha:	2007-06-01
Recurso:	SCIELO

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14.

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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15.

Photometry of polar-ring galaxies
Godínez-Martínez,Arturo - Watson,Alan M. - Matthews,Lynn D. - Sparke,Linda S.

Formato:	journal article
Enlaces:	We have obtained photometry in B and R for seven confirmed or probable polar-ring galaxies from the Polar-Ring Catalog of Whitmore et al. (1990). The rings show a range of colors from B -R ≈ 0.6 to B - R…
Fecha:	2007-10-01
Recurso:	SCIELO

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16.

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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17.

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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18.

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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19.

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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20.

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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21.

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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22.

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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23.

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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24.

Cleaner production and innovation theory; social experiments as a new model to engage in cleaner production
DIELEMAN,Hans

Formato:	journal article
Enlaces:	This paper discusses the concept of cleaner production and proposes a new model to stimulate cleaner production, in the first section the historical development of cleaner production is sketched. It is indicated that the approach gained much attention in the…
Fecha:	2007-06-01
Recurso:	SCIELO

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25.

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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26.

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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27.

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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28.

Individual risk factors for Plasmodium vivax infection in the residual malaria transmission focus of Oaxaca, Mexico
Danis-Lozano,Rogelio - Rodríguez,Mario Henry - Betanzos-Reyes,Ángel F - Hernández-Avila,Juan Eugenio - González-Cerón,Lilia - Méndez-Galván,Jorge F - Velázquez-Monroy,Oscar J - Tapia-Conyer,Roberto

Formato:	journal article
Enlaces:	OBJECTIVE: To identify individual risk factors for malaria infection of inhabitants in the residual transmission focus on the Pacific coast of Oaxaca, Mexico. MATERIALS AND METHODS: A population-based, matched case-control study was conducted from January 2002 to July 2003 comparing…
Fecha:	2007-06-01
Recurso:	SCIELO

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29.

Soil genesis in a marine terrace sequence of Sicily, Italy
Wagner,Stephen - Costantini,Edoardo A.C. - Sauer,Daniela - Stahr,Karl

Formato:	journal article
Enlaces:	Knowledge about the rates of pedogenic processes is essential to understand landscape development and history. It can be attained by the quantitative investigation of soil chronosequences. In this work, the development of Chromic Luvisols in the Mediterranean is addressed. The…
Fecha:	2007-08-01
Recurso:	SCIELO