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1 – 10 of 544Aline Vieira de Carvalho, Luana Cristina da Silva Campos, Cristina Fachini, João Paulo Soares Silva and João Pedro Otoni
This paper examines how the Camburi Quilombo community in Ubatuba, Brazil, can be empowered to develop cultural resilience and conserve its Afro-Brazilian heritage in the face of…
Abstract
Purpose
This paper examines how the Camburi Quilombo community in Ubatuba, Brazil, can be empowered to develop cultural resilience and conserve its Afro-Brazilian heritage in the face of challenges posed by climate change, urbanization and cultural erosion with the adverse consequences of tourism and inadequate infrastructure.
Design/methodology/approach
Emphasizing traditional knowledge, the project consisted of data collection, climate risk assessments and the development of an action plan in collaboration with academic institutions, governmental bodies and nongovernmental organizations (NGOs).
Findings
Aligned with sustainable development goals (SDGs), the project contributes to zero hunger, quality education, sustainable cities, climate action and life on land. Seed exchange fairs, decentralized seed banks and education initiatives foster environmental awareness and sustainable agriculture, impacting the community directly and over 1,000 individuals indirectly. While demonstrating short-term changes and mid-term viability, the project faced some challenges due to local communication complexities and overlapping jurisdiction.
Originality/value
Serving as a bridge between scientific research and local knowledge, the project aims to promote a paradigm shifts toward recognizing, respecting and incorporating indigenous practices, so that a more environmentally aware future can be envisioned for these communities amidst climate challenges. Reflecting on achievements, the project underscores integrating diverse cultural knowledge for community resilience.
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João Paulo Nascimento Silva, Cledison Carlos de Oliveira, Gabriel Pedrosa and André Grutzmann
This paper aims to analyse the technological, economic and environmental impacts of disruptive innovations in the transportation mobility market.
Abstract
Purpose
This paper aims to analyse the technological, economic and environmental impacts of disruptive innovations in the transportation mobility market.
Design/methodology/approach
The paper gathered data from World Bank and 13 open sources in an exploratory, descriptive and applied investigation on potentially disruptive transport innovations outcomes in G7 and BRICS (Brazil, Russian Federation, India, China and South Africa) economies, businesses and societies.
Findings
The results suggest positive implications for technological leapfrogging of electric vehicles (EV), autonomous vehicles (AVs) and electric vertical take-off and landing (eVTOLs), such as gains in energy consumption, infrastructure improvement, greenhouse gas emissions reduction, economic growth and the opportunity for new disruptive technologies to improve or even revolutionize the transportation ecosystem.
Research limitations/implications
This study has clear limitations as it compares G7 and BRICS hypothetical scenarios where internal combustion vehicles were replaced by new technologies, ceteris paribus. Even so, as theoretical implications, the study presents market scenarios for EVs, AVs and eVTOLs technologies, bringing benefits to the disruptive innovation theory by expanding the understanding of the subject and also opening avenues of investigation by exploring new technological, economic and environmental possibilities.
Practical implications
This study emphasises potentially disruptive technologies’ technological, economic and sustainable benefits to countries through technological leapfrogging. The organizations can delve into results to investigate forthcoming markets and seek advantageous positions. Economic and social gains from leapfrogging could motivate government bodies to finance research focusing on EVs, AVs and eVTOLs diffusion.
Originality/value
The paper’s originality resides in aggregating multiple data sources to compare technological leapfrogging in G7 and BRICS transportation. The different views allowed for exploring the potential outcomes of EVs, AVs and eVTOLs on economic, sustainability and market dimensions in developed and developing countries.
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Joao Vitor da Silva Moreira, Karina Rodrigues, Daniel José Lins Leal Pinheiro, Thaís Cardoso, João Luiz Vieira, Esper Cavalheiro and Jean Faber
One of the main causes of long-term prosthetic abandonment is the lack of ownership over the prosthesis, which was caused mainly by the absence of sensory information regarding…
Abstract
Purpose
One of the main causes of long-term prosthetic abandonment is the lack of ownership over the prosthesis, which was caused mainly by the absence of sensory information regarding the lost limb. The period where the patient learns how to interact with a prosthetic device is critical in rehabilitation. This ideally happens within the first months after amputation, which is also a period associated with the consolidation of brain changes. Different studies have shown that the introduction of feedback mechanisms can be crucial to bypass the lack of sensorial information. To develop a biofeedback system for the rehabilitation of transfemoral amputees – controlled via electromyographic (EMG) activity from the leg muscles – that can provide real-time visual and/or vibratory feedback for the user.
Design/methodology/approach
The system uses surface EMG to control two feedback mechanisms, which are the knee joint of a prosthetic leg of a humanoid avatar in a virtual reality (VR) environment (visual feedback) and a matrix of 16 vibrotactile actuators placed in the back of the user (vibratory feedback). Data acquisition was inside a Faraday Cage using an OpenEphys® acquisition board for the surface EMG recordings. The tasks were performed on able-bodied participants, with no amputation, and for this, the dominant leg of the user was immobilized using an orthopedic boot fixed on the chair, allowing only isometric contractions of target muscles, according to the Surface EMG for Non-Invasive Assessment of Muscles (SENIAM) standard. The authors test the effectiveness of combining vibratory and visual feedback and how task difficulty affects overall performance.
Findings
The authors' results show no negative interference combining both feedback modalities and that performance peaked at the intermediate difficulty. These results provide powerful insights of what can be accomplished with the population of amputee people. By using this biofeedback system, the authors expect to engage another sensory modality in the process of spatial representation of a virtual leg, bypassing the lack of information associated with the disruption of afferent pathways following amputation.
Research limitations/implications
The authors developed a showcase with a new protocol and feedback mechanisms showing the protocol's safety, efficiency and reliability. However, since this system is designed for patients with leg amputation, the full extent of the effects of the biofeedback training can only be assessed after the evaluation with the amputees, and the results obtained so far establish a safe and operational protocol to accomplish this.
Practical implications
In this study, the authors proposed a new biofeedback device intended to be used in the preprosthetic rehabilitation phase for people with transfemoral amputation. With this new system, the authors propose a mechanism to bypass the lack of sensory information from a virtual prosthesis and help to assimilate visual and vibrotactile stimuli as a cue for movement representation.
Social implications
With this new system, the authors propose a mechanism to bypass the lack of sensory information from a virtual prosthesis and help to assimilate visual and vibrotactile stimuli as a cue for movement representation.
Originality/value
The authors' results show that all users were capable of recognizing both feedback modalities, both separate and combined, being able to respond accordingly throughout the tasks. The authors also show that for a one-session protocol, the last difficulty level imposed a greater challenge for most users, explained by the significant drop in performance disregarding the feedback modality. Lastly, the authors believe this paradigm can provide a better process for the embodiment of prosthetic devices, fulfilling the lack of sensory information for the users.
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Laura Khalil and Joao Da Silva Guerreiro
The purpose of this paper is to examine the current state of the literature on the variables associated with self-harm and aggression in women who committed a criminal offence.
Abstract
Purpose
The purpose of this paper is to examine the current state of the literature on the variables associated with self-harm and aggression in women who committed a criminal offence.
Design/methodology/approach
Studies were identified through online databases, namely, PsycINFO, PubMed, ERIC and EBSCOhost, as well as manual searches of reference lists of the selected studies. The target population included women who committed a criminal offence and have engaged in self-harm and aggressive behaviors during their incarceration, either in correctional institutions or in forensic psychiatric settings.
Findings
Of the 1,178 studies identified, nine met inclusion criteria. The studies were conducted in six different countries and included data from 6360 female participants. Few studies examine self-harm and aggression in women who committed a criminal offence which speaks to the still sparse literature on this topic. This review of the association between self-harm and aggression in women offenders highlights the finding that a small group of women is often involved in both self-harm and aggression. The authors have identified possible psychological factors associated with women engaging in both self-harm and aggression. The findings also reveal a possible connection between types of aggressive behaviors and specific time periods during sentences or stays in forensic psychiatry.
Practical implications
The findings of this scoping review have clinical implications which may be considered by both researchers and the case management teams of women involved in both self-harm and aggression.
Originality/value
Despite the limited number of studies examining self-harm and aggression in women, this scoping review highlights gaps in the literature as well as notable psychological correlates of women who engage in self-harm and aggression.
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Joao Carlos Marques Silva and José Pereira
Analysis of public sources.
Abstract
Research methodology
Analysis of public sources.
Case overview/synopsis
The bank named “Novo Banco” (New Bank in Portuguese) was created because of an emergency intervention by the Bank of Portugal to save the “good” assets of the once great but bankrupt Banco Espírito Santo (BES) on August 4, 2014. The toxic assets remained in BES (dubbed “bad bank”). BES was one of the biggest private banks in Portugal, with origins mounting back to the year 1869. In 2013, it was headed by the founder’s great-grandson, Ricardo Salgado, when an external audit revealed several problems with the bank’s accounting and concluded that BES had a severe financial problem (the risky credit represented 11.1% of the bank’s accounts). The bank underwent a public capital increase (endorsed by several public figures, including the Portuguese President at the time, Cavaco Silva) of €1.045m to reposition itself, which was 100% successful (demand of about 160%, with a significant part of foreign investors). However, continued amounts of suspicions led Ricardo Salgado to be replaced by Vitor Bento (via a settlement between BES’s shareholders and the Bank of Portugal) in July 2014. At the end of that same month, BES announced imparities totaling the amount of €4.2535m. This led the European Central Bank to suspend BES’s access to the financial operations, forcing it to reimburse its credit to the Eurosystem in the value of €10.000m. In two days, the stock prices dropped by 80% to around €0.03 per share. It was later proven that the administration led by Ricardo Salgado had disobeyed the Bank of Portugal 21 times between December 2013 and July 2014, apparently acting against the institution’s best interests. Some carousel schemes with companies within the Espirito Santo Group were also detected in BES’ financial movements to improve the bank’s financial statements.
Complexity academic level
Finance Valuation, Strategy
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Joao Carlos Marques Silva and José Azevedo Pereira
This study has used public sources, interview with one of the case protagonists.
Abstract
Research methodology
This study has used public sources, interview with one of the case protagonists.
Case overview/synopsis
This business case portrays the problems that an energy producing company faced in Portugal, in its transition from being a public company to becoming privatized. The Portuguese Government issued EDP with generous subsidies to guarantee its future profits and privatization success, but a few years later, after EDP was fully privatized, there was great political pressure to downsize such subsidies. The case describes the main steps taken by EDP from its creation and privatization, culminating at the end of 2017, where it was heavily criticized by media and political parties due to a high value of subsidies that had been granted to the company by the Portuguese Government in the past, while it was still a public company, and the renegotiation of those same subsidies after it had been privatized. EDP’s President António Mexia was under police investigation due to having led the renegotiation talks in 2007, and it was feared that EDP’s investors could refrain from investing in the company. Should EDP campaign to clear its good name, or would it be better to let the matter fall with the passing of time? Could the share value be affected? Should EDP prepare itself for loss of revenue due to an eventual downsizing of the subsidies?
Complexity academic level
This study covers energy sector, privatization issues and government support. The relevance of this study is good for use in Business Schools and MBA courses.
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Joao Carlos Marques Silva and José Azevedo Pereira
The essence of discounted cash flow valuation is simple; the asset is worth the expected cash flows it will generate, discounted to the reference date for the valuation exercise…
Abstract
Theoretical basis
The essence of discounted cash flow valuation is simple; the asset is worth the expected cash flows it will generate, discounted to the reference date for the valuation exercise (normally, the day of the calculation). A survey article was written in Parker (1968), where it was stated that the earliest interest rate tables (use to discount value to the present) dated back to 1340. Works from Boulding (1935) and Keynes (1936) derived the IRR (Internal Rate of Return) for an investment. Samuelson (1937) compared the IRR and NPV (Net Present Value) approaches, arguing that rational investors should maximize NPV and not IRR. The previously mentioned works and the publication of Joel Dean’s reference book (Dean, 1951) on capital budgeting set the basis for the widespread use of the discounted cash flow approach into all business areas, aided by developments in portfolio theory. Nowadays, probably the model with more widespread use is the FCFE/FCFF (Free Cash Flow to Equity and Free Cash Flow to Firm) model. For simplification purposes, we will focus on the FCFE model, which basically is the FCF model’s version for the potential dividends. The focus is to value the business based on its dividends (potential or real), and thus care must be taken in order not to double count cash flows (this matter was treated in this case) and to assess what use is given to that excess cash flow – if it is invested wisely, what returns will come of them, how it is accounted for, etc. (Damodaran, 2006). The bridge to the FCFF model is straightforward; the FCFF includes FCFE and added cash that is owed to debtholders. References: Parker, R.H. (1968). “Discounted Cash Flow in Historical Perspective”, Journal of Accounting Research, v6, pp58-71. Boulding, K.E. (1935). “The Theory of a Single Investment”, Quarterly Journal of Economics, v49, pp479-494. Keynes, J. M. (1936). “The General Theory of Employment”, Macmillan, London. Samuelson, P. (1937). “Some Aspects of the Pure Theory of Capital”, Quarterly Journal of Economics, v51, pp. 469–496. Dean, Joel. (1951). “Capital Budgeting”, Columbia University Press, New York. Damodaran, A. (2006). “Damodaran on Valuation”, Second Edition, John Wiley and Sons, New York.
Research methodology
All information is taken from public sources and with consented company interviews.
Case overview/synopsis
Opportunities for value creation may be found in awkward and difficult circumstances. Good strategic thinking and ability to act swiftly are usually crucial to be able to take advantage of such tough environments. Amidst a country-wide economic crisis and general disbelief, José de Mello Group (JMG) saw one of its main assets’ (Brisa Highways) market value tumble down to unforeseen figures and was forced to act on it. Brisa’s main partners were eager in overpowering JMG’s control of the company, and outside pressure from Deutsche Bank was rising, due to the use of Brisa’s shares as collateral. JMG would have to revise its strategy and see if Brisa was worth fighting for; the market implicit assessment about the company’s prospects was very penalizing, but JMG’s predictions on Brisa’s future performance indicated that this could be an investment opportunity. Would it be wise to bet against the market?
Complexity academic level
This study is excellent for finance and strategy courses, at both undergraduate and graduate levels. Company valuation and corporate strategy are required.
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Thuc Thi Mai Doan Do, Patrícia Pinto, Joao Albino Silva and Luis Nobre Pereira
This study aims to investigate the relationship between environmental stimuli of Airbnb experience, customers’ perceived enjoyment and positive electronic word-of-mouth (eWOM…
Abstract
Purpose
This study aims to investigate the relationship between environmental stimuli of Airbnb experience, customers’ perceived enjoyment and positive electronic word-of-mouth (eWOM) intentions through an extension of the Mehrabian–Russell model.
Design/methodology/approach
A quantitative methodology was adopted using a web-based survey. Data were collected from a sample of 162 Vietnamese Airbnb consumers who had stayed at the platform accommodations. A two-stage procedure with the partial least squares approach to structural equation modeling was conducted to evaluate the measurement model and structural model.
Findings
The results confirmed the significant positive effect of home benefits and social interaction on Airbnb customers’ perceived enjoyment, which subsequently inspires them to develop intentions to spread positive comments toward this platform. Moreover, these relationships remain unchanged among the different groups of customers, except Airbnb travelers with business purposes.
Practical implications
The findings will provide Airbnb stakeholders in emerging markets with insights into identifying the important environmental factors that are more likely to stimulate consumers’ enjoyment and encourage them to spread positive WOM on social network outlets.
Originality/value
This research provides a deeper comprehension of Airbnb users’ emotional states and positive eWOM intentions by exploring the possible antecedents. Moreover, to the best of the authors’ knowledge, this is the first study to propose the moderating role of gender, purpose of the trip and type of accommodation in the hypothesized relationships. The contradictory findings of this study also highlight the cultural difference in Airbnb customers’ perception and behavioral intentions.
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Ademir M. Nascimento, Liguang Liu, João Ricardo Cumarú Silva Alves and Pierre Oriá
This paper seeks to analyze the relationship between China and the Northeast region of Brazil, aiming to identify how the renewable energy sector is being developed.
Abstract
Purpose
This paper seeks to analyze the relationship between China and the Northeast region of Brazil, aiming to identify how the renewable energy sector is being developed.
Design/methodology/approach
The authors analyzed secondary data from the official databases from China-Brazil chambers of commerce to establish the main points related to renewable energy in Brazil's Northeast.
Findings
It is possible to notice the main investments, highlighting the wind energy as a more prominent source recently. The authors also point the huge influence from China on Brazil's Northeast energy sector.
Research limitations/implications
It is difficult to identify the amount of Chinese capital due to the large number of mergers and acquisitions that has been taking place in recent years.
Practical implications
Identification of regions that have been receiving investments and the main interests of Chinese investors in the renewable energy sector.
Social implications
Demonstration of how the renewable energy sector has taken an important turn in Brazil due to Chinese investment.
Originality/value
To evaluate a regional consortium, analyzing its strategies for partnerships with China to help each other in global questions, as is the case of renewable energy.
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Joice Lavandoski, Patrícia Pinto, João Albino Silva and Alfonso Vargas-Sánchez
This study aims to propose that the institutional environment exerts pressure on the behavior of wineries toward wine tourism development (WTD) and the effect of this influence…
Abstract
Purpose
This study aims to propose that the institutional environment exerts pressure on the behavior of wineries toward wine tourism development (WTD) and the effect of this influence confers legitimacy to the business of wine tourism.
Design/methodology/approach
Structural equation modeling through partial least squares was applied to estimate and validate a model using data from a quantitative survey in the universe of 62 wineries with a wine tourism component along the Alentejo Wine Route in Portugal. The proposed model is based on institutional theory through an inter-organizational perspective of wineries.
Findings
The results show that WTD coexists with a highly institutionalized environment, exerting distinctive mechanisms of external pressure together with the search for social legitimacy through actions and practices on the part of the involved wineries. However, the relationship between legitimacy and organizational performance in wineries with wine tourism is not validated.
Research limitations/implications
The specific sample of the Alentejo wine companies does not allow the results to be generalized. Future studies should replicate the proposed research model using other geographic areas.
Practical implications
The results are particularly interesting for managers of wineries and should be considered in the decision-making and strategic processes regarding wine tourism.
Originality/value
The use of institutional theory in the wine tourism context is novel and original. This study fills a research gap by conducting an empirical investigation of wine tourism based on institutional theory, which allows the identification of exogenous factors that can influence and impose restrictions on the organizational behavior of winery companies toward wine tourism.
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