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Aproximadamente 18 registro(s) hasta el momento: (knowledge)

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Knowledge and beliefs about malaria transmission and practices for vector control in Southern Mexico
Rodríguez,Américo David - Penilla,Rosa Patricia - Henry-Rodríguez,Mario - Hemingway,Janet - Betanzos,Angel Francisco - Hernández-Avila,Juan Eugenio

Formato:	journal article
Enlaces:	OBJECTIVE: To investigate the knowledge and beliefs about malaria transmission and practices for vector control in eight villages on the coastal plain of Chiapas, Mexico. MATERIAL AND METHODS: A cross-sectional survey was conducted during May and June 1995 in Chiapas,…
Fecha:	2003-04-01
Recurso:	SCIELO

Recurso libre

Information from teachers on viral hepatitis transmission and prevention in Brazil
Gaze,Rosangela - Carvalho,Diana Maul de - Rangel-Tura,Luiz Fernando

Formato:	journal article
Enlaces:	OBJECTIVE: To assess school teachers' level of knowledge on prevention of viral hepatitis (VH). MATERIAL AND METHODS: A cross-sectional study was conducted in three cities of Brazil, from August to November of 1999. The sample was composed of 360 subjects:…
Fecha:	2003-08-01
Recurso:	SCIELO

Recurso libre

Dynamic Random Fuzzy Cognitive Maps
Aguilar,José

Formato:	journal article
Enlaces:	A fuzzy cognitive map is a graphical means of representing arbitrary complex models of interrelations between concepts. The purpose of this paper is to describe a dynamic/adaptive fuzzy cognitive map based on the random neural network model. Previously, we have…
Fecha:	2004-06-01
Recurso:	SCIELO

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Emotional dysfunction associated with diabetes in Mexican adolescents and young adults with type-1 diabetes
Lerman-Garber,Israel - Barrón-Uribe,Consuelo - Calzada-León,Raúl - Mercado-Atri,Moisés - Vidal-Tamayo,Rafael - Quintana,Silvia - Hernández,María Elena - Ruiz-Reyes,María de la Luz - Tamez-Gutiérrez,Laura Elena - Nishimura-Meguro,Elisa - Villa,Antonio R

Formato:	journal article
Enlaces:	OBJECTIVE: To assess the emotional dysfunction associated with diabetes in Mexican young individuals with type-1 diabetes. MATERIAL AND METHODS: A cross-sectional survey was conducted to perform a complete clinical and psychosocial evaluation of 93 consecutive type-1 diabetes patients, aged 14…
Fecha:	2003-01-01
Recurso:	SCIELO

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Recognition of system behaviours based on temporal series similarity
Llanos,D - Cuberos,F.J. - Meléndez,J - Gamero,Fco. I. - Colomer,J - Ortega,J.A.

Formato:	journal article
Enlaces:	There are different approaches to the temporal study of time evolving systems. This paper reviews previous works related to time series and it evaluates three approaches focused to the comparison of these type of series. Two approaches are based on…
Fecha:	2003-09-01
Recurso:	SCIELO

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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

Characterization of atmospheric particles: analysis of particles in the Campo de Gibraltar
UMBRÍA,A. - GALÁN,M. - MUÑOZ,M. J. - MARTÍN,R.

Formato:	journal article
Enlaces:	Campo de Gibraltar is a highly industrialized area situated in the South of Spain around Algeciras bay (36° 7'N, 5°27'W). This area has an advantageous situation from a geographical, geological and botanical points of view. However, high wind speeds and…
Fecha:	2004-10-01
Recurso:	SCIELO

Recurso libre

Dementia pugilistica 1a. parte
OTERO SILICEO,ENRIQUE - PADILLA RUBIO,JOEL

Formato:	journal article
Enlaces:	Sports is considered a synonym for body and mind health. However, the so called contaet sports, the main example being boxing, more or less go beyond this definition. Contemporary boxing is a spetacle, who is a continuation of historical fights…
Fecha:	2004-06-01
Recurso:	SCIELO

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Recommendations for cervical cancer screening programs in developing countries: the need for equity and technological development
Lazcano-Ponce,Eduardo - Alonso,Patricia - Ruiz-Moreno,José Antonio - Hernández-Avila,Mauricio

Formato:	journal article
Enlaces:	The cervical cancer screening programs (CCSP) have not been very efficient in the developing countries. This explains the need to foster changes on policies, standards, quality control mechanisms, evaluation and integration of new screening alternatives considered as low and high…
Fecha:	2003-01-01
Recurso:	SCIELO

Recurso libre

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

Recurso libre

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

Recurso libre

12.

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

Recurso libre

13.

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

Recurso libre

14.

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

Recurso libre

15.

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

Recurso libre

16.

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

Recurso libre

17.

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

Recurso libre

18.

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