Portal de Revistas Académicas UC Temuco
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Identification of risk factors leading to cost and time overrun in B-O-T projects
Get PDFAs infrastructural investments are vital in developing countries, it’ll not solely facilitate to foster the economic growth of a nation, however it’ll additionally act as a platform within which new kinds of partnership and collaboration may be developed. The developments of BOT have attracted participation of native and foreign non-public sector capitalist to secure funding and to deliver projects on time, within the budget and to the desired specifications. There are many complexities in projects because of the variety of factors in project’s trend and also the dependence of project primarily on national factors. Because of these complexities and their long-term operation, the projects meet with uncertainty and numerous risks. Effective risk management methods and good managerial skills are required in guaranteeing the success of the project. In recent years, due to substantial increase in the amount of construction companies along with the changes in the government administrations, the construction projects are exposed to cost and time overrun and has huge impact on the progress of works within the industry. Although, the sector is considered to be a key driver of economic growth, time and cost overruns threaten to limit the sector’s potential to help achieve the desired growth and ensure efficient capital expenditure.
Keywords—BOT, cost overrun, delays, ris
Scenario analysis of fluoride contamination in the groundwater in Kerala.
Get PDFThe Kerala State is a narrow strip of land in the southwest of India, with the Arabian Sea on the west and the Western Ghats in the east. Recent studies related to contaminant transport in the soil and groundwater in Kerala have reported Fluoride contamination in the aquifers. Due to the poor quality of the surface water sources in the state, the majority of the population in the state depends on groundwater resources for domestic and agricultural uses. When using groundwater for domestic purposes, it is highly important to analyze the quality of the groundwater. This study focuses on the analysis of the Fluoride transport in the soil and groundwater in two different lithological units (laterite and coastal alluvium) in the State. The study concluded that the aquifer in coastal alluvium formation is more susceptible to Fluoride contamination compared to the laterite formation.
Keywords- Groundwater contamination, dispersion, diffusion, HYDRUS-1
Emergency floating hut
Get PDFIn the run-up to the observance of the repeating flooding situation in Kerala, it is an urgent need to take adequate measure for this havoc. This project intends a well planned solution for this and named as “Emergency Floating Hut”. Kerala is a place where floods occurs only during the monsoon season. That means, the flood is caused by rain. The hut is going to be constructed almost near the basement portion by separately providing beams or space in a creative way. The main feature of this design model is, there have spaces for keeping adequate food and medicines. The dimensional data for the hut are: diameter 3.5m and depth 1.2m for the prototype design. The materials used are weight less, low density, durable and with enough stability. The roof covering will be transparent fibre glass.
Keywords—types, material collection, shape of model, principles, design, casting
Review on properties of GGBFS and fly ash incorporated aerated concrete with filler materials.
Get PDFLight weight concrete has been an area of interest for a lot of researchers over the years. While reducing the weight of concrete, mechanical strength and durability should not be compromised. Use of GGBFS and fly ash as partial replacement of cementitious material has been proved effective from various studies previously done. Along with the weight reduction, waste recycling is also an important concern for the researchers. Various waste materials like plastic particles, quarry dust, rubber powder etc. are studied for their effectiveness as a partial replacement for fine aggregates. Common issue with most of the filler materials is the strength reduction occurring with their addition. Apart from mechanical strength tests, micro structure study on the specimens will help to analyse the effect of addition of each material in detail.
Keywords— Aerated concrete, GGBFS, quarry dust, rubber powder, plastic particles
Políticas y marco jurídico de fomento a la lactancia materna exclusiva en el Perú
Get PDFThe World Health Organization (WHO) in its latest report on the Nutrition Goals for 2025, has included breastfeeding as the 5th goal, proposing to increase the exclusive breastfeeding rate in the first 6 months of life to at least 50%, to improve the survival rate and health of infants. This has prompted WHO member countries to increase their efforts to promote breastfeeding practice so as to increase the statistics of countries with less than 1% of women who practice exclusive breastfeeding. Peru, as a member state, has a track record in implementing provisions that have contributed to improving the spirit of this goal, currently ranking first in Latin American countries and second in the world with the highest frequency of exclusive breastfeeding, according to UNICEF. The aim of this article is to describe the implementation of legal provisions related to the increase in exclusive breastfeeding in Peru.La Organización Mundial de la Salud en su último informe sobre las Metas de Nutrición para el 2025, ha incluido a la lactancia materna, como 5ª meta, proponiendo aumentar la tasa de lactancia materna exclusiva en los primeros 6 meses de vida hasta un 50% como mínimo, para mejorar la tasa de supervivencia y la salud de los infantes, esto ha impulsado a los países miembros de la OMS a incrementar sus esfuerzos para promover su práctica y aumentar las estadísticas de países con cifras menores al 1% de mujeres que practican la lactancia materna exclusiva. Perú, como estado miembro posee una trayectoria en la implementación de disposiciones que han contribuido a mejorar el espíritu de esta meta, posicionándose actualmente en el primer lugar de los países latinoamericanos y segundo lugar a nivel mundial con mayor frecuencia de lactancia materna exclusiva, según UNICEF. El presente artículo tiene como objetivo describir la implementación de disposiciones legales en el Perú, que se relacionan con el incremento de la lactancia materna exclusiva.
Entre el prosperar colectivo de Ellas Hacen y la meritocracia individual del Hacemos Futuro Juntas
Get PDFThe objective of this article is to present the evolution of the concept ‘work’ in Argentine social policy from Ellas Hacen, which encouraged the creation of cooperatives of working women to achieve their economic autonomy, to its unification in the Hacemos Futuro Juntas policy, which urgedpersonal development. To carry out this analysis, it was necessary to review the government efforts of Cristina Fernández de Kirchner (2017-2019) and of Mauricio Macri (2019-2020). Thus, the way in which this policy was (re) defining the concept work from a purported gender perspective was problematized,since in its evolution, in its design and practice, the policy omitted problems related to it. In this sense, it was necessary to articulate the perspective of gender studies with public policies. It is in this aspect that the importance of this paper is manifested, since it exposes how the State exempts the singularities of women in this type of policies, which would contribute to deepen inequalities between genders.El objetivo de este artículo es el de presentar la evolución del concepto trabajo en la política social argentina “Ellas hacen” -que fomentaba la creación de cooperativas de mujeres trabajadoras para alcanzar su autonomía económica- hasta su unificación en el programa “Hacemos Futuro Juntas” -que instaba al desarrollo personal-. Para realizar este análisis fue preciso hacer un recorrido por las gestiones gubernamentales de Cristina Fernández de Kirchner (2017-2019) y de Mauricio Macri (2019-2020). De este modo, se problematizó en la manera en que esta política fue (re)definiendo al trabajo desde un pretendido enfoque de género, siendo que, en la evolución de ésta, en su diseño y su práctica omitían problemáticas relacionadas al mismo. En tal sentido, fue preciso articularse a la perspectiva de los estudios de género a las políticas públicas. En este aspecto es en el que se manifiesta la importancia del paper, ya que se expone cómo el Estado exceptúa las singularidades de las mujeres en este tipo de medidas, lo que ayudaría a ahondar más aún las inequidades entre los géneros
“Por más que yo trabaje, trato de acomodar todo a mi hijo”: Usos de la visualización de líneas de tiempo para comprender desigualdades de género en la academia
Get PDFThe objective of this article is to show how, in methodological terms, life trajectories in their qualitative component seem to provide information where data visualization - usually used by quantitative studies - could contribute enough to the data collection, analysis and the subsequent presentation. One of the main features of data visualization is that it would allow placing the information on a human scale, which would make comparing cases a more plausible process to perform. In this sense, this article hopes to show the usefulness of the visualization of qualitative data based on the comparison of four biographical lines of chemistry academics of a Chilean university. We use a particular definition of academic trajectory, namely, the overlap of work, family, personal and couple aspects that are developed in the academic context. With this definition as a starting point, these timelines were articulated with the academic narrative biographies. The use of colors, symbols according to the event, and quotes from the interviews in each of the events within the biographical lines, allow us to realize that, in the case of men, work trajectory follows a progressive linearity and it is distanced from the trajectory family. On the contrary, for women work trajectory is put into evaluation and stressedregarding the family trajectory. Thus, we concluded that the visualization of the timelines is a flexible tool because it can act as a memory aid to the interviewees during fieldwork. Besides, it allows to account for subjective aspects to be analyzed, to make comparisons, and to show the information amiably for the audience and research groups. Este artículo tiene por objetivo dar cuenta cómo, en términos metodológicos, las trayectorias de vida en su componente cualitativo entregan información valiosa aprovechada mediante el uso de la visualización de líneas de tiempo. En general estas han sido ampliamente utilizadas por estudios cuantitativos, y esta investigación se develará su utilidad en un proyecto cualitativo en la recolección de datos, análisis y posterior presentación. Esto, debido a que una de las características principales de la visualización de las líneas de tiempo es emplazar la información a escala humana, y así promover la plausibilidad de las comparaciones entre casos. Así este artículo espera mostrar la utilidad de la visualización de datos cualitativos a través de su ejemplificación en la comparación de cuatro líneas biográficas de académicos de una universidad chilena. Se utiliza una definición particular de trayectoria académica, a saber, la imbricación de aspectos laborales, familiares y de pareja que se desarrollan en el contexto de la academia. Con esta definición como punto de partida, se articularon estas líneas de tiempo con las biografías narrativas de los/as académicos/as. La utilización de colores, símbolos según el evento, y citas de las entrevistas en cada uno de los momentos en las líneas biográficas, permite dar cuenta que, en el caso de los hombres, la trayectoria laboral sigue una linealidad progresiva y distanciada de la trayectoria familiar. Al contrario, en el caso de las mujeres, su trayectoria laboral se ve puesta en evaluación y/o tensionada respecto de la trayectoria familiar. Así se concluye, que la visualización de las líneas de tiempo es una herramienta flexible pues puede actuar como una ayuda memoria a los/as entrevistados/as durante el trabajo de terreno. Además, permite dar cuenta de aspectos subjetivos para ser trabajados analíticamente, hacer comparaciones, y mostrar de una forma amable la información para diversas audiencias y grupos de investigación.
Un proyecto de refundación democrática: el alfonsinismo frente al avance del mercado
Get PDFHe transition to democracy in Argentina was part of a political process that went through extensive transformations at the national, regional and global macroeconomic levels. After a democratic exit without formal conditions, the government of Raúl Alfonsín (1983-1989) had wide margins to begin to configure a democratic political regime that, with the evolution of the electoral victory and the support of the citizens, allowed it to define an ambitious political program. This essay aims to analyze how, since 1983, Alfonsinism proposed to build such a program, its main difficulties, its spirit and some reflections on the economic plans and the reform of the State that followed one another at that time. Thus, the first part analyzes the global and Latin American macroeconomic context, as well as its national impact on the Argentine transition. Then, some details about the beginning of the transition to democracy and the republican spirit that Alfonsinism imprinted on it are delimited, reflecting on their economic policy proposals against the advance of international neoliberalism. La transición a la democracia en la Argentina formó parte de un proceso político atravesado por amplias transformaciones a nivel macroeconómico nacional, regional y mundial. El gobierno de Raúl Alfonsín (1983-1989) tuvo, luego de una salida democrática sin condicionantes formales, amplios márgenes para comenzar a configurar un régimen político democrático que, con el devenir del triunfo electoral y el apoyo de la ciudadanía, le permitió definir un programa político ambicioso. Este ensayo pretende analizar cómo, desde 1983 el alfonsinismo se propuso construir dicho programa, sus principales dificultades, el espíritu del mismo y algunas reflexiones en torno a los planes económicos y a la reforma del Estado que se sucedieron en aquel entonces. Así, en una primera parte se analiza el contexto macroeconómico mundial y latinoamericano, así como de su impacto nacional en la transición argentina. Luego, se delimitan algunas precisiones sobre el comienzo de la transición a la democracia y el espíritu republicano que el alfonsinismo le imprimió a esta, reflexionando, a su vez, sobre sus propuestas de política económica frente al avance del neoliberalismo internacional
Experiencias de relegación urbana post-desastre. El caso de los damnificados del gran incendio de Valparaíso 2014
Get PDF After the 2014 mega fire that affected the hills of Valparaíso, several inhabitants were relocated to other localities within the region, as part of the reconstruction process. This article explores the experiences of relocation of a group of impoverished families in the city of Villa Alemana, whose stories and meanings show processes of social and urban relegation. Based on a qualitative research conducted over two years with the relocated population group - which considered in-depth interviews, moving interviews and participant observation - it is argued that, in the context of a viviendista housing policy like the Chilean one, the post-disaster relocation has as result the sharpening of the subjective harmful effects derived from the condition of victim. This is evident in four main dimensions: (1) feeling of abandonment of the State; (2) socio-territorial stigmatization; (3) neighborhood sociability; and (4) diminishing of space capital. Finally, it concludes on the subjective damage produced by the processes of post-disaster relegation and its link with the public policy of reconstruction. Tras el mega incendio de 2014 que afectó los cerros de Valparaíso, diversos habitantes fueron reubicados en otras localidades de la región en el marco del proceso de reconstrucción. El presente artículo explora las experiencias de relocalización de un grupo de familias empobrecidas en la ciudad de Villa Alemana, cuyos relatos y significaciones evidencian procesos de relegación social y urbana. A partir de una investigación cualitativa desarrollada durante dos años junto al grupo de población relocalizada – que consideró entrevistas en profundidad, entrevistas en movimiento y observación participante – se argumenta que, en el contexto de una política habitacional viviendista como la chilena, la relocalización post-desastre tiene como resultado agudizar los efectos subjetivos nocivos derivados de la condición de damnificado. Ello se evidencia en cuatro dimensiones principales: (1) sentimiento de abandono del Estado; (2) estigmatización socio-territorial; (3) sociabilidad barrial; y (4) merma del capital espacial. Finalmente, se concluye en torno al daño subjetivo producido por los procesos de relegación post-desastre y su vínculo con la política pública de reconstrucción
Extent of variability in fruit morphological characters of local mango germplasm
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A study was conducted on twenty five genotypes of seedling Mangoes to examine fruit morphological characters. Fruit shape of the evaluated germplasm varied enormously and fruits of obovoid, elliptic, round and oblong shapes were found. Fruit apex shape in the evaluated plants was round, acute and obtuse. Depth of fruit stalk cavity was either absent, shallow and of medium type, whereas, fruit neck prominence was absent to slightly prominent in the tested plants. Shape of fruit ventral shoulder was varied and found to be slopping abruptly, rising and then rounded and long curve type in the evaluated germplasm. Fruit beak varies from pointed to perceptible type and fruit sinus was absent to shallow type in the fruits from different plants. Fruit attractiveness varies from very good to excellent and fruit colour from greenish yellow to green colour of fruit skin at maturity was noted in fruits from selected trees. Peel colour of AA-15 was different amongst all the genotypes which were green with red blush. Pulp colour varied from light orange, yellow orange, orange yellow, yellow and light yellow, whereas, pulp texture was soft to intermediate in the evaluated germplasm. Key words: Mangifera indica; Genotype susceptibility; Punjab; India.