scholarly journals Spatial production distribution, economic viability and value chain features of teff in Ethiopia: Systematic review

2022 ◽  
Vol 10 (1) ◽  
Author(s):  
Esubalew Tadele ◽  
Tewabe Hibistu
Keyword(s):  
Systematic Review ◽  
Value Chain ◽  
Economic Viability ◽  
Spatial Production ◽  
Production Distribution

Value chain in distributed generation of photovoltaic energy and factors for competitiveness: A systematic review

Solar Energy ◽  
2020 ◽  
Vol 211 ◽  
pp. 396-411
Author(s):  
Taís Bisognin Garlet ◽  
José Luis Duarte Ribeiro ◽  
Fernando de Souza Savian ◽  
Julio Cezar Mairesse Siluk
Keyword(s):  
Systematic Review ◽  
Distributed Generation ◽  
Value Chain ◽  
Photovoltaic Energy

scholarly journals Agroforestry Systems: A Systematic Review Focusing on Traditional Indigenous Practices, Food and Nutrition Security, Economic Viability, and the Role of Women

2021 ◽  
Vol 13 (20) ◽  
pp. 11397
Author(s):  
Claudia de Brito Quadros Gonçalves ◽  
Madalena Maria Schlindwein ◽  
Gabrielli do Carmo Martinelli
Keyword(s):  
Systematic Review ◽  
Food Security ◽  
Financial Analysis ◽  
Working Hours ◽  
Indigenous Communities ◽  
Agroforestry Systems ◽  
Economic Viability ◽  
Agricultural Practice ◽  
Income Generation ◽  
Agroforestry Practices

This study aimed to identify from the literature review whether agroforestry systems have been an agricultural practice adopted by indigenous peoples for income generation and food and nutritional security. For this, a systematic review was conducted in the period from 2010 to 2020 of 92 articles, dissertations, and theses. Thus, it is found that agroforestry practices are traditional indigenous forms of farming that provide food security, income generation, and medicines, in addition to preserving biodiversity. Indigenous agroforestry is fundamental to indigenous culture, strengthening spiritual practices and the relationship with nature. Women have vital importance in the management of agroforestry practices because, through this productive practice, they ensure the food consumption of the family, besides generating income. However, women still face many difficulties in the countryside because their working hours are longer than those of men; besides not participating in decisions on the choice of species and form of management, in some countries, they still face difficulty accessing and owning land. The studies provide evidence on the economic viability of agroforestry systems. However, research gaps are identified that verify the economic and financial analysis of agroforestry models, which address the concerns of indigenous communities, aiming at food security. These analyses are essential for the implementation and continuity of the production system.

scholarly journals CS Regeneración de aceites lubricantes usados que cumplan la norma NTE - INEN 2030 en el Ecuador, empleando el método de extracción con butanol y el método ácido-arcilla.

2020 ◽  
Vol 5 (2) ◽  
pp. 1
Author(s):  
Cristhian Santiago Rumiguano Macas
Keyword(s):  
Systematic Review ◽  
Efficient Method ◽  
Physicochemical Characteristics ◽  
Lubricating Oil ◽  
Economic Viability ◽  
Review Of The Literature ◽  
Lubricating Oils ◽  
Palabras Clave ◽  
Revisión Sistemática ◽  
Residue Concentration

  Se comparó  parámetros, concentración de residuos y su viabilidad económica de los métodos más utilizados para la regeneración de aceites lubricantes. Mediante investigación y revisión sistemática de la literatura sobre regeneración de aceites lubricantes usados, se determinó las características de cada método, como también sus características fisicoquímicas de cada producto final, identificando el más apto para su implementación en el Distrito metropolitano de Quito, siempre y cuando cumpla con las normas NTE INEN 2030. Para así obtener un método eficiente para la regeneración de aceite lubricante, que sea amigable con el ambiente  y económicamente viable.   Palabras clave—métodos_regeneración/regeneración_aceite/aceite_lubricante/concentración_residuos/norma_nte_inen2030    Abstract— Parameters, residue concentration and their economic viability of the most used methods for the regeneration of lubricating oils were compared. Through research and systematic review of the literature on the regeneration of used lubricating oils, the characteristics of each method were determined, as well as their physicochemical characteristics of each final product, identifying the most suitable for implementation in the Metropolitan District of Quito, as long as comply with the NTE INEN 2030 standards. In order to obtain an efficient method for the regeneration of lubricating oil, which is friendly to the environment and economically viable.

scholarly journals Plastic waste reprocessing for circular economy: A systematic review of risks to occupational and public health from legacy substances and extrusion

2020 ◽  
Author(s):  
Ed Cook ◽  
Costas A Velis ◽  
Michiel Derks
Keyword(s):  
Public Health ◽  
Systematic Review ◽  
Value Chain ◽  
Circular Economy ◽  
New Products ◽  
Hazardous Substances ◽  
Product Cycle ◽  
Sources Of Information ◽  
Mechanical Recycling ◽  
Pollution Dispersion

Increasing aspirations to develop a circular economy for waste plastics will result in an expansion of the global plastics reprocessing sector over the coming decades. Here we focus on two critical challenges within the value chain that as a result of such increased circularity may exacerbate existing issues for occupational and public health (1): Legacy contamination in secondary plastics, addressing the risk of materials and substances being inherited from the previous use and carried through into new products when the material enters its subsequent use phase; and challenge (2): Extrusion of secondary plastics in reprocessing, an end process of conventional mechanical recycling of plastics, involving heating secondary plastics under pressure until they melt and can be formed into new products. Via a systematic review (PRISMA guidelines, adapted), we considered over 4,000 sources of information, refined and consolidated into 20 relevant sources, which were critically assessed. We also derive prevalent risk scenarios of hazard-pathway-receptor combinations, subsequently being ranked. Our critical analysis highlights that despite stringent regulation, industrial diligence and enforcement, occasionally small amounts of potentially hazardous substances are able to pass through these safeguards and re-enter in the new product cycle. Although many are present at concentrations unlikely to pose a serious and imminent threat, their existence may be an indication of a wider or possibly increasing challenge of pollution dispersion, as the plastics reprocessing sector proliferates. But, in the Global South context, such controls may not be in place. Several studies showed emission control by passive ventilation, through open doors and windows followed by dilution and dispersion in the atmosphere, resulting in increased occupational exposure. It is recommended that further investigations are undertaken to establish the scale and magnitude of such phenomena, especially given the limited evidence base, with results informing improved future risk management protocols of a circular economy for plastics.

scholarly journals Innovation and Collaboration: Opportunities for the European Seaweed Sector in Global Value Chains

2021 ◽  
Vol 9 (7) ◽  
pp. 693
Author(s):  
Trond Selnes ◽  
Else Giesbers ◽  
Sander W. K. van den Burg
Keyword(s):  
Systematic Review ◽  
Value Chain ◽  
Global Value Chains ◽  
Global Scale ◽  
Business Development ◽  
Value Chains ◽  
Scientific Publications ◽  
Sustainable Products ◽  
European Sector

The European seaweed sector transitions from harvesting wild stocks only to harvesting and farming seaweed. This transition comes with the need to rethink the role of the European sector on the global scale; insight is needed into the organization of, and innovation in, the global seaweed value chain. This article presents results from our study on value chains using Gereffi’s conceptual framework. A systematic review of scientific publications published between 2010 and 2020 was executed for five markets: pharmaceuticals, bioplastics, biostimulants, alginate and cosmetics. It is concluded that innovation in the use of seaweed takes place across the globe and thus that a focus on high-value applications alone will not set the nascent European seaweed sector apart from established producing regions such as Asia. The studied global value chains are organised around strong lead firms that require suppliers to produce according to codified product characteristics. The European seaweed sector needs to increase the collaboration and develop joint efforts to develop safe and sustainable products that meet the demands of regulators, lead firms and consumers. Stronger coordination in the value chain will facilitate further business development, by stimulating collaboration and innovations.

scholarly journals Mapping the pork value chain in Vietnam: a systematic review

2020 ◽  
Vol 52 (6) ◽  
pp. 2799-2808
Author(s):  
Man Nguyen Thi Thuy ◽  
Pierre Dorny ◽  
Philippe Lebailly ◽  
Chau Le Thi Minh ◽  
Huyen Nguyen Thi Thu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Value Chain

scholarly journals Economic Viability in Photovoltaic Panels: a Systematic Review in Capes Periodical Portal and Scopus Database

2018 ◽  
Vol 5 (7) ◽  
pp. 311-322
Author(s):  
André Gomes Barros ◽  
Denise Cristina de Oliveira Nascimento ◽  
Cristiane de Jesus Aguiar ◽  
Fabrício Moraes de Almeida
Keyword(s):  
Systematic Review ◽  
Economic Viability ◽  
Photovoltaic Panels ◽  
Scopus Database

scholarly journals Kopontren dan Ekosistem Halal Value Chain

2019 ◽  
Vol 5 (01) ◽  
pp. 1
Author(s):  
Arna Asna Annisa
Keyword(s):  
Value Chain ◽  
Positive Impact ◽  
Educational Institution ◽  
Boarding School ◽  
Boarding Schools ◽  
Economic Potential ◽  
Production Distribution ◽  
Qualitative Descriptive ◽  
Descriptive Method

The development of the economic potential of Islamic boarding schools can have a positive impact on improving the national economy. As an educational institution, Islamic boarding schools have the potential of human resources which are also large for high fighting ability, which supports accompanied by capabilities that become a great potential that can become the basis of Indonesia's new economic flows through strengthening boarding schools (kopontren). This paper aims to examine the ecosystems in Islamic boarding schools which have to do with changes in the lifestyle of its members to apply halal values. The research using this qualitative descriptive method. Based on the results of the analysis, the role of kopontren as the driving force of the boarding school is an important diversion as a determinant of how to turn on the halal value chain in every part of the environment in the Islamic boarding school ecosystem with halal values in production, distribution for consumption needs goods or services.

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