1,720,957 research outputs found
Alcances y limitaciones de una experiencia de asociatividad: acciones productivas y comerciales de los pequeños agricultores algodoneros del valle de Pisco.
No full textLa agricultura desde muchos siglos atrás ha sido la actividad por excelencia del Perú. Hoy en día sigue teniendo mucha presencia debido a idóneas tierras para los cultivos, la gran biodiversidad de productos y una variedad de microclimas que permiten que esta actividad perdure y siga siendo fundamental para el desarrollo del país. Según el último censo de Población y Vivienda (2007), en nuestro país alrededor del 25% de la población ocupada trabaja en el sector agropecuario, aportando el 6.0% al Producto Bruto Interno (PBI) nacional1
Alcances y limitaciones de una experiencia de asociatividad: acciones productivas y comerciales de los pequeños agricultores algodoneros del valle de Pisco.
Full text linkLa agricultura desde muchos siglos atrás ha sido la actividad por excelencia del Perú. Hoy en día sigue teniendo mucha presencia debido a idóneas tierras para los cultivos, la gran biodiversidad de productos y una variedad de microclimas que permiten que esta actividad perdure y siga siendo fundamental para el desarrollo del país. Según el último censo de Población y Vivienda (2007), en nuestro país alrededor del 25% de la población ocupada trabaja en el sector agropecuario, aportando el 6.0% al Producto Bruto Interno (PBI) nacional1.Tesi
The Use of Time and the Determinants of Sports Participation in Adults in the United Kingdom 2001-2015
Full text linkEsta investigación examina los factores que habilitan o restringen la participación en
deportes o actividades físicas en adultos del Reino Unido entre el 2001 y 2015. El
análisis estadístico de la "Encuesta de Uso del Tiempo del Reino Unido - UKTS", nos permite determinar en qué medida los mecanismos estructurales relacionados con el
género, la edad, el nivel educativo, la situación económica y el estado de salud
afectan la participación deportiva en los adultos. Adicionalmente, esta investigación
considera el papel que juega el tiempo dedicado al uso de los medios de comunicación
y la tecnología en la decisión de los adultos de involucrarse en actividades deportivas y
físicas. Los resultados de esta investigación indican que si bien los niveles de
participación deportiva han aumentado significativamente del 2001 al 2015, esta aún
se ve fuertemente afectada por mecanismos estructurales. Por otro lado, el tiempo
dedicado al uso de la tecnología también ha mostrado un crecimiento significativo. Sin
embargo, la evidencia actual sugiere que el tiempo dedicado a la tecnología no
reemplaza por completo al tiempo que los adultos dedican al deporte y las actividades
físicas, sino que la tecnología puede usarse como una herramienta para promover su
práctica. Así, la comprensión de la participación deportiva en adultos nos ayuda a
identificar ciertas brechas y desigualdades que surgen de su práctica, así como a
desmentir estereotipos y prejuicios asociados al uso de tecnologías en su ocio o tiempo
libre.This investigation examines the factors that enable or restrict the
participation in sports or physical activities in adults in the United Kingdom
in 2001 and 2015. The statistical analysis of the “United Kingdom Time
Use Survey – UKTUS”, allows us to determine to what extent, the structural
mechanisms related to gender, age, level of education, economic situation
and status of health affect the sports participation in adults. Additionally,
this research considers the role played by the time devoted to the use of
mass media and technology in the decision of adults to get involved in sports
and physical activities. The results of this research indicate that although
the levels of sports participation have increased significantly from 2001 to
2015, it is still strongly affected by structural mechanisms. On the other
hand, the time devoted to the use of technology has also shown a significant
growth. However, the current evidence suggests that technology does not
completely replace time that adults spend in sports and physical activities,
but can be used as a tool to promote its practice. Thus, the understanding of
sports participation in adults helps us to identify certain gaps and
inequalities that arise from its practice, as well as debunk stereotypes and
prejudices associated with the use of technologies in their leisure or free
time
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Grado de inserción del Aprendizaje Dialógico en escuelas peruanas durante los años 2017 y 2018
Full text linkEl presente estudio tuvo como objetivo analizar el grado de inserción del aprendizaje dialógico en siete escuelas de tres regiones del Perú entre los años 2017 y 2018 a estudiantes de 3º a 6º de primaria y de 1º a 5 de secundaria. Estas escuelas fueron seleccionadas a través de un método de muestreo no probabilístico. Los resultados evidenciaron que ocurren mejoras significativas en el nivel de aprendizaje dialógico, principalmente en estudiantes de nivel primaria. La evidencia sugiere que el rol que cumple el proyecto de “Comunidades de Aprendizaje” tiene mayor repercusión en estudiantes más jóvenes
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