Search results for "Stain"

On the distribution of lightning current among interconnected grounding systems in medium voltage grids

2018

This paper presents the results of a first investigation on the effects of lightning stroke on medium voltage installations' grounding systems, interconnected with the metal shields of the Medium Voltage (MV) distribution grid cables or with bare buried copper ropes. The study enables us to evaluate the distribution of the lightning current among interconnected ground electrodes in order to estimate if the interconnection, usually created to reduce ground potential rise during a single-line-to-ground fault, can give place to dangerous situations far from the installation hit by the lightning stroke. Four different case studies of direct lightning stroke are presented and discussed: (1) two …

A systematic literature review of the transition to the circular economy in business organizations: Obstacles, catalysts and ambivalences

2021

There is a need for a transition from unsustainable linear business models to a more sustainable circular approach, called the circular economy. To promote this need, a deeper understanding of which issues hinder organizations’ transition to the circular economy and which ones catalyse it is needed. A systematic literature review was performed on the business implementation of the circular economy and 69 articles covering the topic were found. The review identifies different types of catalyst, obstacles and ambivalent factors influencing circular economy implementation in business. This study contributes to research on circular economy implementation at business organizations by providing u…

Exploring the impact of sustainable value proposition on firm performance

2022

Considering the immense potential of sustainable business models in tackling the broader challenge of corporate sustainability, this paper integrates the literature streams on sustainability practices and organizational business models to analyze the performance implications of a firm's sustainable value proposition. Based on the analysis of a large panel dataset across different industries, consistent with the proposed theory, a sustainable value proposition has been found to have a positive impact on a firm's market-based financial performance (namely, Tobin's Q). Yet, this impact turns out to be highly context-dependent. In particular, the findings reveal that a firm's R&D capabilities i…

Towards bioeconomy : a three-phase Delphi study on forest biorefinery diffusion in Scandinavia and North America

2012

Role of LI-RADS Indeterminate Observations in the Risk of Hepatocellular Carcinoma after HCV Eradication with Direct-Acting Antivirals.

2022

Purpose: To assess whether HCC (LR-5) occurrence may be associated with the presence of Liver Imaging Reporting and Data System (LI-RADS) indeterminate observations in patients with hepatitis C virus infection treated with direct acting antiviral (DAA) therapy. Materials and methods: This retrospective study included patients with HCV-related cirrhosis who achieved sustained virologic response (SVR) after DAA therapy between 2015 and 2019 and submitted to CT/MRI follow-ups with a minimum interval time of six months before and after DAA. Two blinded readers reviewed CT/MRI to categorize observations according to LI-RADS version 2018. Differences in rate of LI-RADS 5 observations (i.e., LR-5)…

Environmental Conflicts and Social Innovation on the Balearic Islands (Spain)

2022

New environmental conflicts arise all the time as a consequence of the industrial economy and economic growth. The search for new energy and new materials jeopardizes the margin to promote sustainable development in many local communities. In this paper, we examine a conflict related to hydrocarbons projects in the Balearic Sea (Spain) from the social innovation perspective. This novel approach allows us to focus on how socially innovative responses can be triggered by environmental threats. A set of mixed methods (qualitative analysis and social network analysis) are implemented to study the emergence and development of Alianza Mar Blava in Ibiza–Formentera. This is an initiative that succ…

Aménités urbaines et périurbaines dans une aire métropolitaine de forme fractale

2002

In the THÜNEN tradition, Urban Economy is a striking abstraction, giving models that keep the main features of the wide diversity of real word cities. Nevertheless, this paradigm less suits the modern urban spatial structures (polycentrism, weak centripetal forces, etc.), particularly the peri-urban form of metropolitan areas, which are an urban/rural integrated space. In this paper, we propose a classical micro-economic urban model combined with a " SIERPINSKI's carpet " geometry, a fractal form which suits for fit together urban and rural areas in a hierarchical structure. Subject to a budget constraint, a household maximises a Cobb-Douglas/CES function, where household's taste for divers…

Long-Term COVID: Case Report and Methodological Proposals for Return to Work

2022

Almost two years after the beginning of the SARS-CoV-2 pandemic, the knowledge of which in the infectious and therapeutic spheres is constantly evolving, attention paid to the medicolegal aspects linked to this emergency phenomenon has mainly focused on the liability implications falling on healthcare personnel. With regard to the medicolegal assessment of the outcomes of COVID-19 illness, although it is a procedure that is commonly used, and although references in the assessment tables in force have been adhered to, a specific assessment protocol has not been standardized that takes into account, from an objective point of view, the degree of severity of the long-term residual outcomes and…

Investigating the Multi-Recyclability of Recycled Plastic-Modified Asphalt Mixtures

2023

Although the benefits of asphalt recycling have been scientifically proven and several best practices are being implemented, further research is required in specific and specialized areas. One of these circumstances is the recycling of Reclaimed Asphalt Pavements (RAPs) that contain asphalt modifiers such as elastomers and/or plastomers. Following the principles of the circular economy and considering the sustainability implications of asphalt mixtures, this paper deals with the multi-recyclability of asphalt mixtures containing 50% RAP with and without a recycled plastic asphalt modifier and rejuvenating agent. The recycled plastic asphalt modifier was made of hard recycled plastics and wa…

Classifying economics for the common good : a note on the links between sustainable development goals and JEL codes

2021

Purpose This brief note sheds light on the links between Journal of Economic Literature (JEL) codes and the Sustainable Development Goals (SDGs) of the United Nations. Design/methodology/approach Three alternative methods based on keyword overlap to establish links between SDGs and JEL codes are presented. Findings These simple linkages illustrate that the themes of SDGs have corresponding closely related JEL classification codes. Research limitations/implications The mappings presented in this note are based on simple keyword overlap and are therefore necessarily imperfect and incomplete. There is plenty of room for further development. Practical implications Despite the demonstrated possi…