Portal de Revistas Académicas UC Temuco
Not a member yet
1040 research outputs found
Sort by
An Intensive Review on Using Translucent Concrete as Energy Efficient Source on Green Buildings
Get PDFGreen buildings are constructed mainly using sustainable materials which create healthy environment inside the building by reduced product emissions. The introduction of the translucent concrete into green buildings created a new innovation in sustainable construction. The ability to introduce refined natural lighting whereas maintaining privacy provides large environmental benefits additionally to its aesthetic ones, as well as reducing the cost of heating and lighting. The aim of the paper is a detailed study on the current status and past studies in the area of translucent concrete. Anyway, this new building material is in its developing stage and it has a wide scope in the future.
Keywords: Energy savings, Green buildings, Light transmitting characteristics, Optical fibers, Sustainable construction, Translucent concrete
Coir fiber as a sustainable material in pavement construction.
Get PDFABSTRACT
Traffic is increasing day by day due to increased vehicle ownership and infrastructure development. As the modern highway transportation has high speed, high traffic density, heavy load and channelized traffic, bituminous concrete is subjected to various types of distress such as rutting, fatigue cracking and raveling. Fatigue cracking occurs because bituminous layers are weak in tension. Therefore reinforcement of the bituminous mixes is one approach to improve tensile strength. Natural fibers can be used for reinforcing as a substitute for synthetic fibers due to their lower cost, ecological recycling and low specific gravity. Among natural fibers growing attention is being paid to coir fiber due to its easy availability, good wearing resistance and more durable property. Also rutting along wheel path causes vehicle hydroplaning during rainy seasons due to loss of skid resistance. As well as water accumulated over the longitudinal depressions damages bond between binder and aggregates. Therefore there is a need for a durable mix which can increase the service life of pavement thus reduces life cycle cost. This study is about use of coir fiber in pavement construction to improve the performance characteristics of the asphalt mixture being used. Stone matrix asphalt mixture is a rut resistant and durable mix which is reinforced with coir fiber and tested for various performance characteristics. Coir fiber is a sustainable material which can be used for rutting resistant mixture.
Keywords: Stone matrix asphalt, Coir fiber, ruttin
Climate change impacts on agriculture dominated Canadian watershed
Get PDFAgricultural water management plays a vital role in the food production and food security(Abbaspour, et al. 2007).Improper management of agriculture leads to local or far field water quality.Runoff from an agriculture land is considerably enriched with different kinds of nutrients, sediments, and pesticides. Nutrient loadings carried with the runoff has caused eutrophication to various degrees and scales, from small and large bays around the Great Lakes (e.g., Green Bay in Lake Michigan) to wide-scale eutrophication in some of the Great Lakes themselves (e.g., Lake Erie)(Inamdar, S. and Naumov, A. 2006)..Water quality and watershed management programs are highly benefitted from simulation models since the advent of computer-based watershed models( Daggupati et al. 2018). To this extent, present study used Soil and Water assessment Tool (SWAT) to investigate the climate change impacts on nutrient loadings primarily occur from runoff from a Canadian agriculture dominated watershed. We found that non-point source pollutants especially total N and total P originating from agriculture land is decreasing during mid and late century projections. Streamflow during winter and fall is projected to increase compared to historical period.
Keywords: SWAT modeling, climate change impact, non-point source pollutio
The Allied Farming -Agro tourism is the tool of revenue generation for rural economic and social development analyzed with the help of a case study in the region of Maharashtra.
No full textAt present, Agro Tourism is promoted by most of the countries in the world aiming at sustainable rural development and economic, social uplifting of local farmers. This creates an added income source to the farmers through the promotions of Agro Tourism, which directly affects the social and economic development of the rural areas.
This research intents to show various activities and ways to earn added revenue through Farming and Agro-tourism as a business conducted by a farmer to promote the products of the land and generate more income from farms. The researcher has used stratified sampling size and techniques. The data is analyzed using Cluster Analysis method of Data Analysis. The research findings on the Agro-tourism promotions in Maharashtra includes activities such as roadside stands, farm tours, conventional methods of cooking, reuse, and retention of natural resources for fuel, activities, and cattle drives. It supplies economic, environment friendly Suitable ways to care for natural resources, natural habitats, natural scenic areas, and special places. Rural tourism Demand increases together with the rural life demonstrative activities and unique experiences in rural areas. The production of natural fuels, Ayurvedic medicines, organic foods, organic fertilizers, tribal and local artifacts and lifestyle items and the producers of these products get positively affected by the rural and Agro tourism growth. In addition to this the added income, personal income, standard of living, rural migration and public revenues has always shown measurable growth, and the region becomes a center of attraction. In the case study the researcher intents to prove the importance and need of promoting argo tourism for the betterment of farmers and rural growth. The researcher intent to help the farmers of Maharashtra to undertake above mentioned activities and tactics to flourish Ago tourism as parallel source of revenue generation to the conventional business of Agriculture
Territorios y temporalidades de la alteridad. : Fronteras en la Norpatagonia, siglos XIX y XX
No full textIn this work we are interested in addressing state constructions from the study of native populations, focusing on the transformations in their trans-mountain relations and in their forms of territoriality. It analyzed their link with the establishment of differentiation systems implemented by national states, process in which the establishment of a binational limit, differential access to the means of production, surveillance, control and discipline mechanisms, theories of social construction and impositions and construction of national identifications are inserted. The objective is to examine, from the Argentine case, a triple border. The first is linked to the spatio-temporal construction of the national states, the second is the normative border of the bodies that defines discrete places of the indigenous, and the third is the disciplinary frontier in the new society. These understood as moments in which alterity is produced and reproduced and that make it possible to understand, in its historical dimension, the conditions and possibilities of Mapuche-Tehuelche territorialization from the forced incorporation into the national states. For this purpose, official and of social memory sources that recover the experiences of Mapuche and Tehuelche men, women, girls and boys are used.En este trabajo nos interesa abordar las construcciones estatales desde el estudio de las poblaciones originarias, especialmente haciendo foco en las transformaciones en sus relaciones transcordilleranas y en sus formas de territorialidad. Se analiza entonces su vínculo con el establecimiento de los sistemas de diferenciación llevados a la práctica por los estados nacionales. Proceso en el cual se inserta el establecimiento de un límite binacional, el acceso diferencial a los medios de producción, mecanismos de vigilancia, control y disciplinamiento, teorías de construcción social e imposiciones y construcción de identificaciones nacionales. El objetivo es analizar desde el caso argentino una triple frontera, la primera vinculada a la construcción espacio-temporal de los estados nacionales, la segunda es la frontera normativización de los cuerpos que define lugares discretos de lo indígena; y la tercera la frontera disciplinante en la nueva sociedad. Entendemos a las mismas como momentos en los cuales se produce y reproduce la alteridad y que posibilitan comprender en su dimensión histórica los condicionamientos y posibilidades de la territoriali-zación mapuche-tehuelche a partir de la incorporación forzada a los estados nacionales. Utilizamos para ello fuentes -oficiales y de la memoria social- que recuperan las experiencias de personas del común, hombres, mujeres, niñas y niños mapuche y tehuelche
De madera y hormigón: hábitat residencial y habitar de migrantes latinoamericanos en la ciudad de Santiago
Get PDFEn base a dos experiencias etnográficas, una en un campamento (asentamiento informal) ubicado en el extremo norte del Gran Santiago y otra, aún en curso, en zonas de verticalización residencial en el centro de la comuna de Santiago, el presente artículo discute sobre la influencia de las materialidades y espacialidades de la vivienda en la configuración del habitar de migrantes latinoamericanos en la Región Metropolitana. Se concluye que el hábitat en campamentos, cuya espacialidad y materialidad son de orden flexible y en permanente construcción, permite formas de apropiación espacial, de tipo simbólico y material, conforme se procede a la edificación y mejora de la vivienda, mientras que el hábitat en zonas de verticalización residencial cuya materialidad es rígida y se encuentra pre-definida, restringe de manera sustantiva las posibilidades de apropiación espacial a nivel material. Aun así, en la intimidad de la vivienda y a nivel simbólico y afectivo se producen formas de domesticación del espacio residencial que resultan modeladas por sus usuarios migrantes
Coloring of food by the use of natural color extracted by beetroot (Beta Vulgaris), betalain pigment
Get PDFColor is one of the most important quality attribute in the food products. The purpose of adding color in the foods is to make them attractive, to influence the consumer to buy the product and also to improve the quality of the food product. At the present time the demand of natural color is increased in worldwide due to the awareness of people on therapeutic medicinal properties and their benefits in the place of synthetic colors. Synthetic colors are harmful for health and show toxicity in food products. Natural color are those pigments which is derived from naturally sources such as plants, insects, animals, vegetables and fruits etc. among all these natural dyes, plant based pigments have medicinal values so are mostly preferred. Today the food industry are mostly preferred the use of natural coloring pigment in their food products because the generation of this time is very possessive to their health and preferred the food product which is made from the use of natural color. The present study is based on the use of natural colors in food product in the place of synthetic color. The natural color was extracted from beetroot (Beta Vulgaris) named as betalain pigment. Betalain pigment is rich in antioxidant property, vitamin A and C and also a good source of iron, calcium etc. In this experiment the use of the natural color in the preparation of cookies.Keywords: natural food color, dyes, extraction, pigment, beetroot, betalain, cookies
Bacterial pollution indicators associated in the tissues of an estuarine fish Mugil cephalus from Ashtamudi lake, a Ramsar site of Kerala, India
Get PDFFishes are continuously exposed to the microorganisms present in water and in the sediment. The present study was attempted to screen the pollution indicator bacteria in the tissues of an estuarine fish Mugil cephalus from Kureepuzha Backwater, a part of Ashtamudi Lake. Total heterotrophic bacteria, total coliform bacteria, Escherichia coli and fecal streptococci were enumerated from the fish tissues using standard microbiological procedures. Comparison of bacterial count in the skin, gill and gut of Mugil cephalus revealed that highest count of indicator microbes were found in the skin followed by the gill and gut of fish from all sites except site 4. Fishes from site 4, they show bacteria predominantly in the gut. Two way Anova showed a significant difference in microbial count between sites and between tissues except Total heterotrophic bacteria and fecal streptococci between sites. Results of physico chemical parameters also supports that the anthropogenic activities accumulated in the study area, causing the disruption of hydrological quality of Lake and thus increases the load of detrimental microorganisms. Hence it is recommended that good processing of fish such as washing, scraping scales, removal of gills and gut contents and proper cooking help to reduce microbial pathogen in fish body and make it safe for consumption
Indigenous People and Changing Socio-Cultural Behavior: A Case Study of Toto Tribes, Totopara
Get PDFAs the saying goes “culture doesn't make people, it is the people who make culture”. The are several tribes living in India and are trying to preserve their rich cultural heritage. Toto is an aboriginal Indo-Bhutanese tribe found in some parts of Alipurduar district in North Bengal. Unique to their culture is the idea of having only single wife and strongly advocate anti-dowry system unlike neighbouring tribal practices. As per the reports they are recognized as the smallest tribe on the Earth and are on the verge of complete extinction. Various cultural transformation and other developmental activities around the region is leading to declining Toto’s population, which is further aggravated by Thalassemia virus, which is one of the silent killers of the tribe. It is alarming that an average lifespan of Toto's has suddenly declined to 35 years over the years. The basic objective of the study is to identify reasons beneath transformations of traditional livelihood and sudden decline of Toto tribe. Based on different research, global understandings and valuable readings, what instrumental steps can be taken to preserve and protect them. Primary survey and secondary data sources have been used for the data collection. A household survey was executed with the help of snowball sampling in December 2018 at Totopara in Madarihaat block of Alipurduar district, West Bengal. Remedial and descriptive methods and qualitative techniques have been used for analysis of data. After the analysis, it was concluded that increasing the education and awareness level through workshops, documentaries, camps, public meetings, discussions, discourse, rallies, seminars and cultural programs would play an instrumental role to put a cap on the declining population of the locals and would lead to their sustainable growth and development. Keywords Culture-Aboriginal- Extinction- Thalassemia-Sustainable Growt
Metabolic disorder confronted in the region of high-altitudes
No full textThere are various metabolic disorders those are faced by people when they enter the high-altitude region for a temporary period. The permanent residences of such regions are adapted to this habitat by birth but the majority of issue is faced by the once who belongs to the plain’s region. The major reasons for these disorders are due to differences in the atmospherics conditions like the air density, oxygen level, UV exposure, hardness of water etc. It takes a few days or weeks (subjective from person to person) to get acclimatized to such conditions. The major as well common disorders include hypertension, breathlessness, blood pressure fluctuation, skin irritation, eye watering etc.Keywords- acclimatized, hypertensio