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1 – 10 of 37
Article
Publication date: 23 August 2011

Antonio Caballero and Jean‐Francois Molinari

This paper aims to describe a numerical approach to the fragmentation of kidney stones by direct impact.

Abstract

Purpose

This paper aims to describe a numerical approach to the fragmentation of kidney stones by direct impact.

Design/methodology/approach

The numerical approach consists of a Lagrangian finite element formulation with dynamic insertion of cohesive‐free surfaces. Cohesive free surfaces are governed by a damage constitutive model whereas the continuum part of the mesh remains linear elastic. The impact of the metallic probe of the medical device is modeled with a displacement control of the nodes inside the area of impact on the stone.

Findings

The results show the relation between the total energy transmitted during the impact with the damage and the fragmentation (number of fragments and number of microcrack clusters) of the kidney stone. The paper establishes the existence of both, an activation and saturation energy level, that delimit a range optimum working energy transmitted during the impact. In particular, the computations show that, for the calcium oxalate monohydrate stone, the maximum energy supplied by the medical device (Lithoclast) coincides with the saturation energy level.

Originality/value

In medical investigations, the experimentation is always restricted to the availability of patients or specimens. In the particular case of the elimination of renal calculi, the literature exhibits an extensive number of works reporting the practical experience of medical doctors. However, there is still a lack of information that might help to understand and to improve the comminution of kidney stones.

Details

Engineering Computations, vol. 28 no. 6
Type: Research Article
ISSN: 0264-4401

Keywords

Book part
Publication date: 11 June 2021

Eduardo Villena-Alarcón and Lidia Caballero-Galeote

While the tourism sector is experiencing one of the worst crises in its history due to COVID-19, institutions and governments continue to try to minimize the effects…

Abstract

While the tourism sector is experiencing one of the worst crises in its history due to COVID-19, institutions and governments continue to try to minimize the effects. Social networks have become an indispensable tool for communications and product sales. This case study focuses on integrating the use of social networks for the tourism sector in order to contribute to the reconstruction of the territory of Andalusia. To achieve this goal, a multistage content analysis has been carried out. On the one hand, the metrics of the institution in charge of tourism in the region have been analyzed, and on the other hand, the same study has been carried out with the residents. From this comparison it is established that residents attract more comments and responses in their individual posts about Andalusia than those published by the Andalusian government entity. Therefore, the resident can become the influence of his territory and can contribute to attract tourists and to show the products that are offered in his region. This research provides the evidence for the institutions in charge of promoting tourism to take into account the resident as a dynamic agent in overcoming the consequences of the pandemic.

Details

Tourism Destination Management in a Post-Pandemic Context
Type: Book
ISBN: 978-1-80071-511-0

Keywords

Book part
Publication date: 23 March 2017

Barbara de Lima Voss, David Bernard Carter and Bruno Meirelles Salotti

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of…

Abstract

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in the construction of hegemonies in SEA research in Brazil. In particular, we examine the role of hegemony in relation to the co-option of SEA literature and sustainability in the Brazilian context by the logic of development for economic growth in emerging economies. The methodological approach adopts a post-structural perspective that reflects Laclau and Mouffe’s discourse theory. The study employs a hermeneutical, rhetorical approach to understand and classify 352 Brazilian research articles on SEA. We employ Brown and Fraser’s (2006) categorizations of SEA literature to help in our analysis: the business case, the stakeholder–accountability approach, and the critical case. We argue that the business case is prominent in Brazilian studies. Second-stage analysis suggests that the major themes under discussion include measurement, consulting, and descriptive approach. We argue that these themes illustrate the degree of influence of the hegemonic politics relevant to emerging economics, as these themes predominantly concern economic growth and a capitalist context. This paper discusses trends and practices in the Brazilian literature on SEA and argues that the focus means that SEA avoids critical debates of the role of capitalist logics in an emerging economy concerning sustainability. We urge the Brazilian academy to understand the implications of its reifying agenda and engage, counter-hegemonically, in a social and political agenda beyond the hegemonic support of a particular set of capitalist interests.

Details

Advances in Environmental Accounting & Management: Social and Environmental Accounting in Brazil
Type: Book
ISBN: 978-1-78635-376-4

Keywords

Article
Publication date: 31 August 2021

Tessa Withorn, Jillian Eslami, Hannah Lee, Maggie Clarke, Carolyn Caffrey, Cristina Springfield, Dana Ospina, Anthony Andora, Amalia Castañeda, Alexandra Mitchell, Joanna Messer Kimmitt, Wendolyn Vermeer and Aric Haas

This paper presents recently published resources on library instruction and information literacy, providing an introductory overview and a selected annotated bibliography…

3458

Abstract

Purpose

This paper presents recently published resources on library instruction and information literacy, providing an introductory overview and a selected annotated bibliography of publications covering various library types, study populations and research contexts.

Design/methodology/approach

This paper introduces and annotates English-language periodical articles, monographs, dissertations, reports and other materials on library instruction and information literacy published in 2020.

Findings

The paper provides a brief description of all 440 sources and highlights sources that contain unique or significant scholarly contributions.

Originality/value

The information may be used by librarians, researchers and anyone interested in a quick and comprehensive reference to literature on library instruction and information literacy.

Details

Reference Services Review, vol. 49 no. 3/4
Type: Research Article
ISSN: 0090-7324

Keywords

Book part
Publication date: 28 September 2020

Ernesto López-Gómez, Raúl González Fernández, Antonio Medina and Samuel Gento

Recent decades have witnessed increasing interest worldwide in educational quality. Many international organisations and national education systems have conducted studies…

Abstract

Recent decades have witnessed increasing interest worldwide in educational quality. Many international organisations and national education systems have conducted studies on the meaning of quality, the various ways in which it can be measured and the factors that promote it as a basis for designing education reforms and rendering good practices visible. In this chapter, the authors explore conceptual perspectives on educational quality that are informed by various pedagogical approaches and examine the initiatives implemented in Spain to improve educational quality in non-university contexts, analysing education legislation over the past 30 years. The authors also propose basic elements or strategies that the authors believe would further promote educational quality in non-university settings in Spain and elsewhere. These proposals revolve around the educational project, teacher training and professional development, diversity and inclusion in education and community leadership.

Details

From Pedagogy to Quality Assurance in Education: An International Perspective
Type: Book
ISBN: 978-1-83867-106-8

Keywords

Article
Publication date: 24 July 2019

Mauro Lombardo, Giovanni Aulisa, Elvira Padua, Giuseppe Annino, Ferdinando Iellamo, Antonio Pratesi, Massimiliano Caprio and Alfonso Bellia

The purpose of this paper is to examine gender differences in food habits and food choices, including decisions in healthy eating, to personalize diet therapies to be as…

Abstract

Purpose

The purpose of this paper is to examine gender differences in food habits and food choices, including decisions in healthy eating, to personalize diet therapies to be as effective possible for long-term weight loss.

Design/methodology/approach

In this cross-sectional study, eating behaviours were assessed using a questionnaire composed of 12 questions concerning food habits, 17 concerning food taste, and four about healthy eating. There were 2,021 (1,276 women) Caucasian adults enrolled in the study.

Findings

Statistically significant differences in women compared to men occurred for the following questionnaire entries reading eating habits: whole grain food (10.0 per cent higher in women; p < 0.001); cereals such as barley (8.3 per cent higher in women, p < 0.001); cooked vegetables (6.6 per cent higher in women, p < 0.001); eggs (5.0 per cent lower in women, p = 0.03); meat (9.3 per cent lower in women, p < 0.001); and processed meat (7.1 per cent lower in women, p < 0.001). Women consume more water, sugar-sweetened beverages and alcoholic drinks than males, and liked salty foods more than sweet foods. Men ate faster, ate more during the night and slept worse than women. Men ate meals out more often and tended to be hungrier later in the day. Women missed more meals and ate more times during the day and were also more likely to eat uncontrollably.

Research limitations/implications

The authors observed strong evidence of profound gender-specific differences between men and women in terms of dietary habits, the taste of food and in the relationship with meals.

Practical implications

The findings suggest a need for the creation of gender-specific programs for promoting a healthy lifestyle.

Social implications

A need for the creation of gender-related programs for promoting healthy lifestyle has been demonstrated.

Originality/value

Reasons for the different eating behaviours among men and women have been found. Western society’s perception of the ideal body weight is much lower for women than for men. In general, social perceptions influence nutritional behaviour to a great extent. Women’s greater nutritional knowledge and sex-specific taste preferences also account for the differences in eating behaviour.

Details

Nutrition & Food Science , vol. 50 no. 1
Type: Research Article
ISSN: 0034-6659

Keywords

Open Access
Article
Publication date: 25 August 2022

Anastasia Giakoumelou, Antonio Salvi, Giorgio Stefano Bertinetti and Anna Paola Micheli

The authors compare two market collapse incidents, focusing on their role as turning points for ESG considerations among investors that do not fall under the SRI class…

Abstract

Purpose

The authors compare two market collapse incidents, focusing on their role as turning points for ESG considerations among investors that do not fall under the SRI class. The authors draw from the signaling theory to posit that ESG performance acts as a buffer to retain institutional shareholders under stress conditions.

Design/methodology/approach

The authors collect extensive data on institutional shareholdings and corporate performance during the pandemic and the 2008 financial crisis to examine the potential of ESG to act as a downward risk hedging mechanism. The authors test whether superior ESG scores function as insurance and resilience signals that lock investors in through times of high probability of divestments.

Findings

Findings indicate that ESG weighs in investment decisions during economic downturn and poor returns. The nature of this positive relationship is not static but dynamic contingent on overall risk materiality considerations.

Research limitations/implications

The authors update regulators, firms, investors and academics on ESG, risk and crisis management. The shifting materiality and the altering impact of ESG practices is our core implication, as well as limitation, in terms of metrics, temporal evolution and interaction with institutional factors, along with portfolio alpha and safe haven potential in ESG asset classes.

Originality/value

The authors extend current literature focusing on portfolio returns and firm valuations to highlight the role of ESG in shareholder retention during poor return periods. The authors further add to existing studies by examining the shifting materiality of ESG pillars during different crisis settings.

Details

Management Decision, vol. 60 no. 10
Type: Research Article
ISSN: 0025-1747

Keywords

Article
Publication date: 5 June 2020

Columba Lisset Flores Torres, Luis Alberto Olvera-Vargas, Julia Sánchez Gómez and David Israel Contreras-Medina

Following the recommendation of the food and agriculture organization of the United Nations in agricultural innovation, for taking advantage of emerging technologies, in…

Abstract

Purpose

Following the recommendation of the food and agriculture organization of the United Nations in agricultural innovation, for taking advantage of emerging technologies, in benefit of small-farmers, the present study explores one of the most ancient crops in the world that privileging the application of tacit knowledge, to become a succulent plant called agave, into the so-called drink of the gods, the mezcal. For this, the purpose of this study is to discover innovation opportunities and reconfiguring knowledge interaction dynamics of the agricultural artisan production of agave-mezcal from Oaxaca, Mexico, using emerging technologies

Design/methodology/approach

Following a qualitative-quantitative approach, the study was carried out with 44 mezcal producers from Oaxaca, Mexico, through face-to-face session, questionaries’ application and field visits, based on the model of socialization, externalization, combination and internalization (SECI) through Likert-scale questions, combining the non-parametric statistical analysis and digital compass, for the detection of technological opportunities

Findings

Basing on artisanal process, context-knowledge place, technological resources and SECIs model results, the opportunities must go in the route of labour in the logic of digital performance. In this sense, becomes relevant to develop an easy-use mobile application for improving the interaction of mezcaleros with external agents and another’s producers., A second proposal is the creation of mezcal-tech-hub, thinking as collaborative space, for promoting the interaction producer-to-producer and producer-to-external agent.

Originality/value

The value of the present study is the empirical description of knowledge dynamics interaction contained in the agricultural artisan production of agave-mezcal through SECI model; the identification of problems, failure or barriers contained in the knowledge interaction dynamics of the agricultural artisan production agave-mezcal; the proposal of innovation opportunities for reconfiguring the knowledge interaction dynamics of the agricultural artisan production agave-mezcal from a developing economy, using emerging technologies.

Details

Journal of Knowledge Management, vol. 25 no. 2
Type: Research Article
ISSN: 1367-3270

Keywords

Article
Publication date: 3 August 2021

Maria Elisabete Duarte Neves, Luís Baptista, António Gomes Dias and Inês Lisboa

This paper aims to analyze the determinants of Portuguese energy companies' performance.

Abstract

Purpose

This paper aims to analyze the determinants of Portuguese energy companies' performance.

Design/methodology/approach

To achieve our objective, we have used data from 457 Portuguese energy companies, in the period between 2011 and 2018. Three dependent variables were tested using panel data, through the generalized method of moments (GMM) estimation method.

Findings

The results point out that the determinants of companies' performance change according to how different stakeholders appreciate corporate performance. In general, shareholders are concerned with maintaining their levels of profitability over time as well as with the company's market image. Managers are centered on maintaining solid margins on EBITDA through good management of cash flow, leverage and current assets. For the rest of the stakeholders, including global society, debt and investments in tangible fixed assets reduce profitability while investments in immaterial assets help to create value and performance for energy companies.

Originality/value

As far as the authors are aware, this is the first time that a study has been carried out in the Portuguese energy sector using the GMM-system model for three different stakeholders' views of corporate performance determinants.

Details

International Journal of Productivity and Performance Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1741-0401

Keywords

Article
Publication date: 9 May 2016

Xosé H. Vázquez, Antonio Sartal and Luis M. Lozano-Lozano

This paper aims to examine how lack of financial cooperation damages the operational efficiency of supply chains. The thesis is that economic and technological forces are…

2447

Abstract

Purpose

This paper aims to examine how lack of financial cooperation damages the operational efficiency of supply chains. The thesis is that economic and technological forces are provoking increasing financial tensions that push companies to transfer their credit needs and inventory requirements to their weakest suppliers. Thus, what might initially seem positive from an individual perspective can in fact generate losses in production efficiency for the supply chain as a whole.

Design/Methodology/approach

This paper uses official data collected from 116 first- and second-tier suppliers in the Spanish automotive components sector, covering nine years (2001-2009). The relationships between the key variables are analysed using panel data estimations.

Findings

Significant differences were found between the working capital (WC) of first- and second-tier companies, proving additionally that although this approach may temporarily improve the results of first-tier suppliers, it leads to lower production efficiency in plants throughout the value chain.

Practical implications

Practitioners should avoid short-sighted attitudes when organizing the supply chain on a cooperative basis, going beyond the conventional wisdom on physical and information flows between original equipment manufacturers and their suppliers to reach upstream stages and embracing financial considerations.

Originality/value

The paper takes a novel approach to the issue of inter-organizational collaboration in the supply chain, aiming to go beyond conventional Lean Supply practices. From an empirical point of view, while much of the research on the topic utilizes key informant insights collected using psychometric data collection techniques, this study uses different financial proxies collected from secondary panel data.

Details

Supply Chain Management: An International Journal, vol. 21 no. 3
Type: Research Article
ISSN: 1359-8546

Keywords

1 – 10 of 37