scholarly journals Barriers and perspectives for the expansion of wind farms in BRAZIL

2022 ◽  
Vol 7 ◽  
pp. 6
Author(s):  
Mário Joel Ramos Júnior ◽  
Paulo Soares Figueiredo ◽  
Xisto Lucas Travassos

The use of renewable sources for electricity generation has as main benefits the preservation of natural resources, security in the distribution of electricity and the reduction of greenhouse gas emissions. Research has shown that the participation of wind in the Brazilian electrical matrix has increased considerably in recent years, despite the existence of multiple barriers to the implementation of wind farms in the country. This study aims to identify and evaluate the current barriers to the expansion of wind farms in Brazil, suggesting ways to overcome them. Based on a systematic review of the literature, the evaluation of the complexity level and associated risk, the barriers were categorized into seven groups. The results indicated that four barriers are more relevant in relation to the expansion of wind farms in Brazil: unstable macroeconomic environment, government policy uncertainty, system constraints, and lack of infrastructure. On this basis, apart from the recent growth of wind energy in Brazil, actions must be taken to mitigate the identified barriers, as the most complex barriers need government intervention to be removed or mitigated, since the electricity market is highly regulated and complex in Brazil. Further research is needed to rank and analyze more deeply the barriers that were identified here, through interviews with stakeholders and visits to wind farms.

2021 ◽  
Vol 13 (13) ◽  
pp. 7102
Author(s):  
Ana Carolina V. Nadalini ◽  
Ricardo de Araujo Kalid ◽  
Ednildo Andrade Torres

The objective of this paper is to present a review of current research on the valuation of ecosystem services, using emergy evaluation methodology (EME). A bibliometric analysis and a systematic review were carried out between 2000 and 2020, using all of Web of Science database subfields that collected 187 papers, selected through the keywords “emergy” and “ecosystem services”. In the second part of the research, we carried out a new search on Web of Science of the 187 initial articles produced, with the words “valuation” and “economic”, in order to analyze those directly related to the evaluation of ecosystem services. The results showed that the EME method is an effective tool to evaluate ecosystem services, since it relates economic and ecological aspects in the evaluations. The research also indicated that the use of isolated methods does not appear to be the most appropriate solution, and that emergy used in combination with other methodologies can be used to obtain more accurate and comprehensive results to evaluate natural resources.


2020 ◽  
Vol 5 (1) ◽  
pp. 326-338 ◽  
Author(s):  
Kristen Weidner ◽  
Joneen Lowman

Purpose We conducted a systematic review of the literature regarding adult telepractice services (screening, assessment, and treatment) from approximately 2014 to 2019. Method Thirty-one relevant studies were identified from a literature search, assessed for quality, and reported. Results Included studies illustrated feasibility, efficacy, diagnostic accuracy, and noninferiority of various speech-language pathology services across adult populations, including chronic aphasia, Parkinson's disease, dysphagia, and primary progressive aphasia. Technical aspects of the equipment and software used to deliver services were discussed. Some general themes were noted as areas for future research. Conclusion Overall, results of the review continue to support the use of telepractice as an appropriate service delivery model in speech-language pathology for adults. Strong research designs, including experimental control, across multiple well-described settings are still needed to definitively determine effectiveness of telepractice services.


VASA ◽  
2020 ◽  
pp. 1-6 ◽  
Author(s):  
Marina Di Pilla ◽  
Stefano Barco ◽  
Clara Sacco ◽  
Giovanni Barosi ◽  
Corrado Lodigiani

Summary: A 49-year-old man was diagnosed with pre-fibrotic myelofibrosis after acute left lower-limb ischemia requiring amputation and portal vein thrombosis. After surgery he developed heparin-induced thrombocytopenia (HIT) with venous thromboembolism, successfully treated with argatroban followed by dabigatran. Our systematic review of the literature supports the use of dabigatran for suspected HIT.


2017 ◽  
Vol 22 (3) ◽  
pp. 159-166 ◽  
Author(s):  
Bastianina Contena ◽  
Stefano Taddei

Abstract. Borderline Intellectual Functioning (BIF) refers to a global IQ ranging from 71 to 84, and it represents a condition of clinical attention for its association with other disorders and its influence on the outcomes of treatments and, in general, quality of life and adaptation. Furthermore, its definition has changed over time causing a relevant clinical impact. For this reason, a systematic review of the literature on this topic can promote an understanding of what has been studied, and can differentiate what is currently attributable to BIF from that which cannot be associated with this kind of intellectual functioning. Using Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) criteria, we have conducted a review of the literature about BIF. The results suggest that this condition is still associated with mental retardation, and only a few studies have focused specifically on this condition.


Author(s):  
L. Kristjanson ◽  
E. Lobb ◽  
S. Aoun ◽  
L. Monterosso

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