Foreign direct investment, stock market capitalization, and sustainable development: relative impacts of domestic and foreign capital

It is well acknowledged that achieving sustainable development goals without negatively impacting a country’s economic activity is complicated. The question of whether foreign or domestic capital can be used to address the financial demands of the nations who lack the financial resources for a green transformation should now be resolved. Based on this, the main goal of this research is to analyze the impacts of domestic and foreign capital on carbon emissions for a heterogeneous panel of 42 countries for the period from 1990 to 2017. Aside from capital accumulation, the environmental impact of elements such as economic growth, urbanization, trade openness, and energy usage is also studied. The newly developed quantile via moment approach is utilized to isolate the impacts according to the countries’ emission levels. Finally, the impact of these variables on the recently constructed sustainable development index is investigated in order to ensure its robustness. The findings of the study reveal that the environmental efficiency of domestic capital accumulation in countries with low emission levels is higher than in countries with high emission levels. Foreign capital, on the other hand, has no substantial effect on emission levels in all quantiles. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature

Wind-pv-thermal power aggregator in electricity market

This paper addresses the aggregation of wind, photovoltaic and thermal units with the aim to improve bidding in an electricity market. Market prices, wind and photovoltaic powers are assumed as data given by a set of scenarios. Thermal unit modeling includes start-up costs, variables costs and bounds due to constraints of technical operation, such as: ramp up/down limits and minimum up/down time limits. The modeling is carried out in order to develop a mathematical programming problem based in a stochastic programming approach formulated as a mixed integer linear programming problem. A case study comparison between disaggregated and aggregated bids for the electricity market of the Iberian Peninsula is presented to reveal the advantage of the aggregation

The Use of Ligasure Vessel Sealing System in Axillary Dissection; Effect on Seroma Formation

Background: Seroma formation is the most frequent postoperative complication after axillary dissection for breast surgery with an incidence of 10 - 50 %. This prospective clinical randomized study was carried out to evaluate the Ligasure vessel sealing system and its effect on seroma formation and other complications for axillary dissection