Sustainability and Re-invention: The Pot Drum in Sri Lanka

2021 ◽  
pp. 173-182
Author(s):  
Iranga S Weerakkody

As indicated by archeological and literary sources, the pot drum has been a membranaphone of popular use since the Anuradhapura kingdom. It has been seen in various forms as Kumbha beraya, kala beraya, bummadiya or bimbisaka. This drum, being made out of clay in the shape of a gourd with an elongated neck or in that of a clay pot had a stretched skin of goat hide, monitor lizard hide or monkey hide. The use of these raw materials and how it brings harmony between the pottery industry and villagers in the processes of making the bummadiya is of importance. Through this research, understanding the Sri Lankan pot drum as a primary musical instrument and studying its historical and cultural aspects served as a foundation. After which, the objectives of identifying the role the pot-drum plays in sustainability were discussed. Finally, an investigation into an evolutionary stage of the pot drum in modern times, the thunpata beraya, was investigated. While this is a qualitative research, literary and archeological sources were used to collect data through discussions and field visits. The cultural texts and articles written throughout the ages on the Sri Lankan pot drum were used as secondary sources. Judgment sampling was the background behind the selection of data sources. Audio-visual methods were also used in collecting data. The human activity of using a material such as clay to express creativity in the form of music is of significance here.

2021 ◽  
pp. 163-172
Author(s):  
W.M.D.A.L.B. Tilakaratna

Sri Lanka is a country where the coconut plant (Cocos nuceifera) is of utmost importance to daily activities. However, while the coconut fruit is used in meals every day, the shell is usually discarded in modern times. This is a case study that aims to investigate the modern application of the usually discarded object, the coconut shell, within a musical instrument and the quality and feasibility of such a musical instrument. First, the importance of the coconut plant in Sri Lankan culture and daily life is to be discussed, through which, the historic application of coconut shells as a raw material to construct musical instruments is to be investigated. Leading on to question the modern use of coconut shells as such, a selected instrument, the tharanga beraya was then investigated. Finally, comparisons of this to the traditional percussion instrument, the thammattama, was considered. While this research is qualitative in nature, discussions and field observations were used as a primary source and the relevant texts and articles on matters were used as secondary sources of information. Audio-video techniques were used to document the relevant data. Conclusions and thoughts on the future for this instrument were brought out in the end.


2015 ◽  
pp. 103-108
Author(s):  
R. E. Shesterikova ◽  
E. A. Shesterikova ◽  
M. V. Popov

It is known that development of gas, gas-condensate and oil deposits is related with production of associated mineralized water. For creation of highly profitable processes of production and processing of hydrocarbons the methods of utilization of secondary sources of raw materials and energy become very important. The volumes of produced associated water at the petroleum complex facilities are so great, that it permits to consider them as a source of raw materials for processing with further receiving various commodity products, for example, process liquids, drilling fluids, iodine, bromine and their compounds.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Lino Bianco

AbstractRuins are a statement on the building materials used and the construction method employed. Casa Ippolito, now in ruins, is typical of 17th-century Maltese aristocratic country residences. It represents an illustration of secondary or anthropogenic geodiversity. This paper scrutinises these ruins as a primary source in reconstructing the building’s architecture. The methodology involved on-site geographical surveying, including visual inspection and non-invasive tests, a geological survey of the local lithostratigraphy, and examination of notarial deeds and secondary sources to support findings about the building’s history as read from its ruins. An unmanned aerial vehicle was used to digitally record the parlous state of the architectural structure and karsten tubes were used to quantify the surface porosity of the limestone. The results are expressed from four perspectives. The anatomy of Casa Ippolito, as revealed in its ruins, provides a cross-section of its building history and shows two distinct phases in its construction. The tissue of Casa Ippolito—the building elements and materials—speaks of the knowledge of raw materials and their properties among the builders who worked on both phases. The architectural history of Casa Ippolito reveals how it supported its inhabitants’ wellbeing in terms of shelter, water and food. Finally, the ruins in their present state bring to the fore the site’s potential for cultural tourism. This case study aims to show that such ruins are not just geocultural remains of historical built fabric. They are open wounds in the built structure; they underpin the anatomy of the building and support insights into its former dynamics. Ruins offer an essay in material culture and building physics. Architectural ruins of masonry structures are anthropogenic discourse rendered in stone which facilitate not only the reconstruction of spaces but also places for human users; they are a statement on the wellbeing of humanity throughout history.


2020 ◽  
Vol 32 (1) ◽  
pp. 147-166
Author(s):  
Roberto Giustetto ◽  
Stefania Padovan ◽  
Luca Barale ◽  
Roberto Compagnoni

Abstract. The polished stone industry of Chiomonte (Piedmont region, northwestern Italy), dating back to the middle to late Neolithic, has been studied with a multi-analytical approach, including mineralogical, petrographic and morpho-typological issues, with the aim of providing information about the sources of the raw materials and determining the function of this particular settlement in the prehistoric Western Alps. Most of the lithic tools are made of sensu stricto greenstones (i.e. “Na pyroxene rocks” and “Na pyroxene and garnet rocks”), though a large number of serpentinite tools (25 %) also exist. The combined application of X-ray powder diffraction (XRPD), polarising microscopy and Scanning Electron Microscopy coupled with Energy Dispersive Spectrometry (SEM-EDS) led to the detection of specific mineral and chemical “markers”, pointing to the Chiomonte tools likely having come from the Monviso area. However, other closer supply sources, e.g. small meta-ophiolite units in the Orsiera–Rocciavré mountain range or in the lower Susa valley, cannot be ruled out. The presence, on the many retrieved roughouts and broken tools, of raw, yet unpolished surfaces that are ascribable to pebbles and cobbles from alluvial or glacial deposits, suggests that these rocks had been picked up from local “secondary” sources. The abundance of roughouts and broken tools identifies Chiomonte as a second-order manufacturing site, although it is still unclear whether such an activity was restricted to serving local needs or if it contributed to the circulation of greenstone implements on a wider scale.


Author(s):  
Gilbert Zechia Mofor ◽  
Nadine Yemelong Temgoua ◽  
Ndamsa Dickson Thomas

The use of durable forest resources in urban areas has raised the question of link between conservation and usage patterns. Population growth in Cameroon urban areas has continued to trigger constant demand for forest resources notably for rattan resources. Owing to the thriving domestic use and trade indicators, it is observed that, the furniture processors have been experiencing considerable demand of rattan products. It was pathetic to observe that, though the whole chain of rattan dependable activities have become an integral part of livelihood strategy for many urban communities, it is without any regulatory rearmament. Such scenario has until recently been ostensibly clear that in Bamenda town is an epitome for non-awareness of the exact species used, ecological attitudes, post-harvest losses, innovative technologies and trade letdown. In the context of such lack of awareness, most socioeconomic and conservation benchmarks have remained trapped in inappropriate operations. It is in this light that, Bamenda town displays a range of concerns about the rattan resources management stakes and challenges. Thus, the main objective of this paper attempts to harness suitable socioeconomic and ecological strategies to ensure sustainability with significant potential for the rattan sources to the thriving investors’ livelihood. The study therefore, explores the stakeholders’ treasure on rattan resources derivatives and perceptions on conservation and socioeconomic standing in Bamenda town, which is a heavily dealing place. The study made use of primary and secondary sources to collect necessary data. The results indicate that, they are a chain of rattan resource investors, multiples sources of raw materials and local rattan workspaces. In addition, the paper established that, there are no conservation awareness and visions, no innovative technologies, insufficient basic knowledge about self-regulatory mechanism for informal trade on a sound rattan management as well as no veritable institutional support structures to strengthen the rattan sector. Therefore, imperiling this activity into a blur future given the gaps observed in the sector. Based on these challenges, the study has proposed pertinent concerns, which have some supportive regimented policies to awareness, sustainable conservation, production and trading trends management for livelihood of the rattan dealers in Bamenda town and beyond.


Author(s):  
Patrick Wendell Freire Cidelino ◽  
Everton Vieira da Silva

Background: recycling is an essential tool for promoting sustainable development, as mechanisms that reduce the use of virgin raw materials will limit the use of scarce resources and reduce the progressive accumulation of waste. as well as contain their side effects and pollution causing health problems, among others. At the base of the recycling system are the collectors of recyclables, agents of this activity who are the workers who pick, select and sell recyclable materials such as paper, glass, metal, garbage, and other reusable materials. Aim: this study aimed to verify the income earned and the contribution to the sustainable development process arising from collecting recyclable materials. Methods: the proposed study was carried out at the Cajazeiras Waste Pickers Association (ASCAMARC), in this city, Alto Sertão da Paraíba. The population and sample are 13 recyclable waste pickers who actively participate in ASCAMARC and voluntarily agreed to participate in the research after being informed about its objectives. The content analysis technique was used through transcripts of interviews with the target audience and documents from secondary sources, and the collected data were also analyzed in quantitative form. Results and Discussion: the results show that 12 (92.31%) waste pickers earn less than one wage, and 01 (7.69%) waste pickers earn a minimum wage through the activity of collecting recyclable material and that there is currently great concern about the damage generated to the environment by solid wastes that have a long degradation time. It was found that 13 (100%) waste pickers believe that collecting recyclable materials contributes to the environment. Conclusions: It can be concluded from the results obtained the social, economic, and environmental importance of the work of waste pickers, despite the precarious conditions in which they perform the activity, without their participation in the base of the recycling chain, perhaps the environmental situation would be more chaotic in recent times.


Author(s):  
Lalginthang Khongsai ◽  
Mayanglambam ManiBabu

The unique way of timekeeping strategy, involving pengkul (a traditional bamboo trumpet) as a communication or signalling device within the Lom institution demonstrates the early Kuki people’s technological adaptability and cognitive development. Pengkul has been an important musical instrument of the early Kuki people since time immemorial. It plays a significant role in traditional Kuki society as a means of public communication and conveyor of time and event rather than a mere instrument of merriments. Firstly, the article focuses on the procurement of raw materials, manufacturing process, uses, maintenance, repairing, and discard pattern of the pengkul. Secondly, the article focuses on the role of pengkul as a communication or signalling device within the organization of the village workforce called “ Lompi.” Wherein, pengkul remains as a guiding element of the socioeconomic survival strategy adopted by the traditional Kukis. Thirdly, the article further analyzes the myths and traditional beliefs associated with pengkul to delineate the ideational aspect of pengkul within their concept of the supernatural realm.


Metals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1069
Author(s):  
Marcus Sommerfeld ◽  
Claudia Vonderstein ◽  
Christian Dertmann ◽  
Jakub Klimko ◽  
Dušan Oráč ◽  
...  

Due to the increasing demand for battery raw materials such as cobalt, nickel, manganese, and lithium, the extraction of these metals not only from primary, but also from secondary sources like spent lithium-ion batteries (LIBs) is becoming increasingly important. One possible approach for an optimized recovery of valuable metals from spent LIBs is a combined pyro- and hydrometallurgical process. According to the pyrometallurgical process route, in this paper, a suitable slag design for the generation of slag enriched by lithium and mixed cobalt, nickel, and copper alloy as intermediate products in a laboratory electric arc furnace was investigated. Smelting experiments were carried out using pyrolyzed pelletized black mass, copper(II) oxide, and different quartz additions as a flux to investigate the influence on lithium-slagging. With the proposed smelting operation, lithium could be enriched with a maximum yield of 82.4% in the slag, whereas the yield for cobalt, nickel, and copper in the metal alloy was 81.6%, 93.3%, and 90.7% respectively. The slag obtained from the melting process is investigated by chemical and mineralogical characterization techniques. Hydrometallurgical treatment to recover lithium is carried out with the slag and presented in part 2.


2018 ◽  
Vol 11 (1) ◽  
pp. 1520-1526
Author(s):  
Pivithuru Janak Kumarasinghe ◽  
Savinda Perera

The study focuses on Sri Lankan virgin coconut oil industry because of it is one of the upcoming export products and also its position as one of the key player in the global market. Sri Lankan coconut industry is one of the major foreign exchange and employment generation source and element of the Sri Lankan nation. The study attempted to unearth the determinants of export competitiveness of virgin coconut oil industry in Sri Lanka by drawing attention on Porter’s theory of the competitive advantage of nations. The target population of the study consisted with individual firms which are engaging in virgin coconut oil export in Sri Lanka is two hundred and nineteen. The study used a likert scale to measure the chosen variables. Based on the Pearson Correlation analysis researcher can say that there is significance strong positive relationship between Availability of Raw materials, Quality of demand and Market share of export with the Export Competitiveness. According to regression analysis researcher can say that availability of Raw materials, Local market, Quality of demand and Market share of export has significance positive affect on Advantage of Export Competitiveness.


2020 ◽  
Vol 4 ◽  
pp. 86-93
Author(s):  
SH.A. SMAGULOVA ◽  

The author examines the problems that have arisen in food market: rising food prices, restrictions on the supply of agricultural raw materials due to the coronavirus pandemic around the world. It is shown that in Kazakhstan the size of GDP for 8 months of 2020 decreased in relation to the same period in 2019 by 3%. The statistical data on changes in the level of development of sectors of the national economy for August 2020, the amount of gross output of agriculture, forestry and fishery in the republic are presented. State measures to support farmers in the current situation have been substantiated. Literary sources are summarized with emphasis on the importance and role of attracting foreign capital to agricultural sector. The analysis of investment projects for production, processing and storage of agricultural products is carried out on the example of Almaty region. Foreign investors who, together with the participation of government agencies, allocate material resources for modernization, reconstruction, construction of new factories and agricultural complexes are presented. At the same time, great attention is paid to increasing the efficiency of production facilities and innovative agricultural technologies. Subsectors of agriculture have been identified, where investments in this region are involved as a priority. The barriers and problems of limiting foreign investment in agro-industrial complex during the period of "COVID 19" are identified: uncertainty of continuation of the pandemic, the volatility of world oil prices, trade wars and sanctions, dollarization of the economy, etc. Recommendations and prospects for improving the implementation of investment projects are presented.


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