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Copyright of Ciencia y Educación (2707-3378) is the property of Duanys Miguel Pena Lopez and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Internacional de Educación para la Justicia Social is the property of Universidad Autonoma de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Retos: Nuevas Perspectivas de Educación Física, Deporte y Recreación is the property of Federacion Espanola de Asociaciones de Docentes de Educacion Fisica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This article presents a four-year longitudinal study analysing what teachers who participate in a non-formal scientific activity think they will learn during the activity. Unlike previous studies, this paper is focused on a long-term activity. The answers given by the teachers to an open-ended question were subjected to an interpretative-descriptive analysis which allowed the emergence of five main categories of response and five teacher profiles. These categories and profiles allowed the characterization and interpretation of teachers' responses. It is concluded that the teachers perceive the activity as a multidisciplinary training opportunity with which to expand and diversify their formation and, especially, to acquire new teaching learning strategies that can be transferred to their classrooms. [ABSTRACT FROM AUTHOR]

Copyright of Saber, Ciencia y Libertas is the property of Saber, Ciencia y Libertad and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Etudes Romanes de Brno is the property of Masaryk University, Faculty of Arts and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Sociedad e Infancias is the property of Universidad Complutense de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Spanish Journal of Disability Studies / Revista Española de Discapacidad is the property of Centro Espanol de Documentacion sobre Discapacidad and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of International e-Journal of Criminal Sciences is the property of International e-Journal of Criminal Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Literatura y Lingüística is the property of Universidad Catolica Cardenal Raul Silva Henriquez and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Ortopédica Mexicana is the property of Sociedad Mexicana de Ortopedia, AC and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Psicologia del Trabajo y de Las Organizaciones is the property of Colegio Oficial de Psicologos de Madrid and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of OCNOS: Journal of Reading Research / Revista de Estudios sobre Lectura is the property of Universidad de Castilla-La Mancha, Facultad de Ciencias de la Educacion y Humanidades and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ius et Praxis (07172877) is the property of Universidad de Talca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Latinoamericana de Estudios de Familia is the property of Universidad de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

A methodology is presented for estimating the average trends of internal migration rates in Cuban. In this paper we use data of municipal migration rates by trienniums during the period 1980-2009, a period that includes three clearly differentiated moments during the economic crisis that hit the country in the early '90s. The proposal is based on the use of multilevel models for the longitudinal data analysis. This approach allows to assess the impact of the environmental and socio-economic contexts of the municipalities on the behavior of migratory movements in time. The results evidence the power of multilevel models to investigate not only the average behavior of the growth curves of migration rates of the studied population, but also the differences between municipalities and detection of atypical municipalities. This could be use to make recommendations for the development of differentiated policies on land management schemes. [ABSTRACT FROM AUTHOR]

Copyright of Gerokomos is the property of Indemm Farma SL and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Ciencias Médicas de Pinar del Río is the property of Editorial Ciencias Medicas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de Ciencias Médicas de Pinar del Río is the property of Editorial Ciencias Medicas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Peruana de Investigación Materno Perinatal is the property of Peruvian Journal of Maternal Perinatal Research / Revista Peruana de Investigacion Materno Perinatal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of EMPIRIA: Revista de Metodología de Ciencias Sociales is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Spanish Journal of Comparative Education / Revista Española de Educación Comparada is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Magis: Revista Internacional de Investigación en Educación is the property of Pontificia Universidad Javeriana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista EAN is the property of Universidad EAN and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Avances en Enfermería is the property of Editorial Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In petrochemical industry, it is necessary to use a Non-destructive testing that allows, in a fast and suitable way, the quantification of the present corrosion on the external surface of the pipes used by oil pipelines and gas pipelines. Currently, this process is executed manually, making it slow and tedious to obtain the results and subject to human error. Therefore, in this paper the study of the main Non-destructive testing is done to choose the most suitable one, so that it allows extracting information from the corroded zones, such as: the maximum depth of the corroded area and the projection of this on the longitudinal axis of the pipelines. This information is required for the analysis of the integrity and determination of the maximum pressure of the pipelines operation, according to the regulations established for transport and distribution of the hydrocarbon, in particular the ASME B31G code. [ABSTRACT FROM AUTHOR]

Nested model selection for longitudinal data using information criteria and the conditional adjustment strategy. Knowledge of the subject matter plays a vital role when attempting to choose the best possible linear mixed model to analyze longitudinal data. To date, in the absence of strong theory, much of the work has focused on modeling the covariance matrix by comparing non-nested models using selection criteria. In this paper, we compare the performance of conditional likelihood ratio test (LRT) and several versions of information criteria for selecting nested mean structures and/or nested covariance structures, assuming that the true data-generating processes are known. Simulation results indicate that the efficient criteria performed better than their consistent counterparts when covariance structures used in the data generation were complex, and worse when structures were simple. The conditional LRT under full maximum likelihood (FML) estimation was better overall than the other criteria in terms of selection performance. However, under restricted maximum likelihood (REML), estimation was inferior. We also find that the strategy suggested in the statistical literature of using REML for covariance structure selection, and FML for mean structure selection may be misleading. [ABSTRACT FROM AUTHOR]

In this paper, I argue that the State's agenda deals basically with issues of development, governance, and equality. Starting out from this premise, I explore whether the differences between countries in terms of these three variables have a structural pattern and, if so, how stable this pattern is throughout the period under study. Using cluster analysis, I conclude that the world can be divided in two main groups whose composition remains relatively stable. In addition, it is shown that the governance gap between the two groups tends to diminish, but this is not followed by a concomitant improvement in development and equality gaps. [ABSTRACT FROM AUTHOR]

Copyright of Revista Cubana de Ciencias Informáticas is the property of Universidad de las Ciencias Informaticas (UCI) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

During the last years the multilevel models have been frequently utilized in the analysis of longitudinal data, especially in the field of education. In this paper an example of application in medical research is presented and are discussed the advantages of these models over the classical ones. The motivation emerges of a problem of anesthesiology which we desire study the influence of two anesthetic induction devices on the pressure blood. The application evidence the power of the multilevel models for the longitudinal data analysis. [ABSTRACT FROM AUTHOR]

The article presents an introduction to cohort studies in epidemiology, as well as an analysis of survival. Cohort designs has quickly become one of the most methodological tools utilized in epidemiological and medical investigations. Fundamental concepts of cohorts are analyzed. The focus of this article is the variable cohort designs as well as the basic tools that were used in creating them as a part of survival analysis. Finally, the paper focuses in on a cohort study relating the age at which smokers begin to smoke in relationship to schizophrenia.

Copyright of Nova Scientia is the property of Nova Scientia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Colombia Medica is the property of Universidad del Valle and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Perspectiva Empresarial is the property of Fundacion Universitaria Ceipa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Innovar: Revista de Ciencias Administrativas y Sociales is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Linguistica (1132-0214) is the property of Asociacion de Linguistica y Filologia de la America Latina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Linguistica (1132-0214) is the property of Asociacion de Linguistica y Filologia de la America Latina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Mexicana de Endocrinología, Metabolismo y Nutrición is the property of Publicidad Permanyer SLU and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista de la Asociación Española de Neuropsiquiatría is the property of Asociacion Espanola de Neuropsiquiatria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)