Search results

1 – 10 of 55
Article
Publication date: 11 June 2018

Patricia Raposo, André Furtado, António Arêde, Humberto Varum and Hugo Rodrigues

The infill masonry walls in recent worldwide earthquakes have shown that it is necessary to conduct further studies to characterize the behavior of existing buildings and, in…

Abstract

Purpose

The infill masonry walls in recent worldwide earthquakes have shown that it is necessary to conduct further studies to characterize the behavior of existing buildings and, in particular, of infill masonry walls under seismic activity. The lack of characterization studies of infill walls made by concrete blocks justifies the investigation reported herein, which includes experimental tests on sample sets to evaluate the mechanical properties of masonry components (units and mortar) and assemblages (wallets) made with masonry units from Faial. For the later, normal compressive, diagonal tensile/shear and out-of-plane flexural strengths were obtained according to standard procedures, the results of which are presented in the manuscript. The paper aims to discuss these issues.

Design/methodology/approach

One experimental campaign was conducted with the aim to mechanically characterize concrete blocks masonry samples. Several experimental tests were carried out in full-scale masonry concrete wallets according to the constructive methodology used.

Findings

Based on the data obtained from the mechanical characterization tests of the concrete masonry blocks, it can be seen that under simple compression, the masonry specimens’ average resistance is about 6 times superior than the average resistance to diagonal shear/tension, while the stiffness is almost doubled. In simple compression tests, it was observed that the masonry specimens cracked in areas of higher drilling of the blocks. In the tensile tests by diagonal compression, it was found that the test specimens were mainly fissured by the block/mortar joint interfaces, following the delineation of settlement and top joints.

Originality/value

There are no experimental results available in the literature for this type of bricks that can contribute to the development of numerical studies.

Details

International Journal of Structural Integrity, vol. 9 no. 3
Type: Research Article
ISSN: 1757-9864

Keywords

Article
Publication date: 6 December 2024

Raquel Matos, Hugo Rodrigues, Aníbal Guimarães Costa, Maria Fernanda Rodrigues, Sarel Lavy and Manish Dixit

Facility management (FM) plays an important role in the attainment of a sustainable built environment during the building operational stage since it is responsible for decisions…

Abstract

Purpose

Facility management (FM) plays an important role in the attainment of a sustainable built environment during the building operational stage since it is responsible for decisions that influence materials’ durability, waste, cost reduction and energy efficiency. However, the integration of the life cycle assessment (LCA) approach in FM presents some difficulties in obtaining complete inventories for building components, tracking material flows and defining system boundaries. This paper aims to establish the environmental impact comparison between maintenance actions and replacement interventions performed during the life cycle of a steel frame from a building facade.

Design/methodology/approach

For this purpose, the effects of different repair/maintenance actions and end-of-life scenarios were analysed using two tools: an LCA building information modelling-based tool and an LCA open-source tool.

Findings

The results showed that repairing and maintaining the steel structure is essential for the safety and preservation of the steel structure. However, steel maintenance and repair practices that involve fewer environmental impacts need to be explored.

Social implications

It also emphasises the crucial role of facility managers in promoting sustainability and supporting informed decision-making throughout the building’s life cycle, thereby aiding in the pursuit of sustainable development and the goal of decarbonisation by 2050.

Originality/value

This study reveals that maintenance processes in building management have a greater environmental impact compared to material replacement activities, especially concerning the steel structure within the case study building, as assessed using two LCA software tools. The findings provide valuable insights into the environmental impacts of maintenance and replacement phases and underscore the need for further investigation into more sustainable maintenance practices within facility management. Additionally, the study raises public awareness and engagement in environmental responsibility, contributing positively to the achievement of a sustainable built environment.

Details

Facilities, vol. 43 no. 1/2
Type: Research Article
ISSN: 0263-2772

Keywords

Article
Publication date: 10 October 2024

Gabriel Tomasetto Sugiyama, Maria Fernanda Rodrigues and Hugo Rodrigues

This paper aims to compare the possible environmental impacts of different rehabilitation solutions proposed to a case study of a Portuguese vernacular building, bearing in mind…

Abstract

Purpose

This paper aims to compare the possible environmental impacts of different rehabilitation solutions proposed to a case study of a Portuguese vernacular building, bearing in mind the need to search for less impactful practices in accordance with global agendas and, simultaneously, the importance of preserving heritage assets.

Design/methodology/approach

The two proposed solutions differ from each other in the selection of materials, varying from the exclusive use of conventional contemporary materials to the use of locally sourced and natural-based materials, considering the Portuguese and local scenario. Results obtained from Life Cycle Assessment procedures are the basis of comparison, which were developed using a Building Information Model (BIM)-integrated analytical plugin.

Findings

Producing Heritage Building Information Model (HBIM) models was essential to the analysis, and therefore is a vital part of the used methodology; nevertheless, the modelling of heritage buildings itself plays an important part in preserving heritage assets once it provides precise documenting and managing tools. The results depict variation in values for different indicators in both cases, whose interpretation might need further development to get to deeper conclusions. It has been found that the software tools are still not well adapted to analyse heritage or historic buildings, and therefore adaptations had to take place to overcome these limitations.

Originality/value

The study distinguishes itself by involving the production of HBIM models and the use of BIM-integrated Life Cycle Assessment plugins as well as its analyses, to validate this approach.

Details

International Journal of Building Pathology and Adaptation, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2398-4708

Keywords

Open Access
Article
Publication date: 14 March 2024

Lucas Prata Feres, Alex Wilhans Antonio Palludeto and Hugo Miguel Oliveira Rodrigues Dias

Drawing upon a political economy approach, this article aims to analyze the transformations in the labor market within the context of contemporary capitalism, focusing on the…

Abstract

Purpose

Drawing upon a political economy approach, this article aims to analyze the transformations in the labor market within the context of contemporary capitalism, focusing on the phenomenon of financialization.

Design/methodology/approach

Financialization is defined as a distinct wealth pattern marked by a growing proportion of financial assets in capitalist wealth. Within financial markets, corporate performance is continuously assessed, in a process that disciplines management to achieve expected financial results, with consequences throughout corporate management.

Findings

We find that this phenomenon has implications for labor management, resulting in the intensification of labor processes and the adoption of insecure forms of employment, leading to the fractalization of work. These two mechanisms, added to the indebtedness of workers, constitute three elements for disciplining labor in contemporary capitalism.

Originality/value

We argue that these forms of discipline constitute a subsumption of labor to finance, resulting in an increase in labor exploitation. This formulation of the relationship between financialization and changes in the realm of labor also contributes to understanding the unrealizing potential of social free time in contemporary capitalism.

Article
Publication date: 18 October 2023

Joana Andrade, Hugo Gomes, Rui Gonçalves and Andreia Castro-Rodrigues

Remand prisoners (RPs) are known to be in a more vulnerable situation than those already convicted. Beyond the difficulties to adapt to the prison, RP also tend to experience…

Abstract

Purpose

Remand prisoners (RPs) are known to be in a more vulnerable situation than those already convicted. Beyond the difficulties to adapt to the prison, RP also tend to experience tough circumstances due to the uncertainty of their future. This study aims to further test the psychometric properties of the Suicide Concerns for Offenders in the Prison Environment (SCOPE-2) in a sample of RP.

Design/methodology/approach

The authors have carried out a confirmatory factor analysis to test the psychometric qualities of the SCOPE-2. The authors tested the originally proposed two-factor structure composed of two subscales: optimism and protective self-worth. Also, the authors examined internal consistency through Cronbach’s alphas. Convergent validity was tested by correlational analyses between SCOPE-2 subscales and the Suicide Behaviors Questionnaire-Revised and Brief Symptom Inventory (BSI) total scores. Finally, the authors have tested known-groups validity by carrying out discriminant analysis by testing the SCOPE-2 subscales’ ability to predict belonging to a group with previous suicide attempts.

Findings

The confirmatory factor analysis showed an acceptable model fit, even though the subscale “Protective self-worth” presented a less acceptable fit. The correlation analysis supported the convergent validity of the SCOPE-2. Both the “Optimism” and “Protective self-worth” subscales showed a positive correlation with the total scores of BSI. Finally, the Portuguese version of SCOPE-2 also showed known groups validity. Concretely, the “Optimism” scores revealed an acceptable predictive accuracy.

Practical implications

This study embraces important contributions to the practice as it was the first study to validate a measure to assess vulnerability for suicide and self-harm in male and female RP.

Originality/value

To the best of the authors’ knowledge, this was the first study to validate an instrument to assess vulnerability for suicide and self-harm in both male and female pretrial detainees. Knowing their particular case, as well as the lack of responses for these individuals, it is particularly important to access suicide concerns that could precede suicide attempts.

Details

The Journal of Forensic Practice, vol. 25 no. 4
Type: Research Article
ISSN: 2050-8794

Keywords

Article
Publication date: 8 February 2024

Andreia C.B. Ferreira, Ricardo Gouveia Rodrigues, Ana R. Gouveia, Oliva M.D. Martins, Hugo Ferreira, João Alfredo Pereira and Paulo Duarte

The use of insects as food is a proposed solution for the increased demand for food worldwide, but it lacks acceptance because of restrictive emotional factors. This article aims…

Abstract

Purpose

The use of insects as food is a proposed solution for the increased demand for food worldwide, but it lacks acceptance because of restrictive emotional factors. This article aims to understand better customers' emotions’ role in considering and consuming insect-based food.

Design/methodology/approach

To assess their acceptance, an experiment was developed with 38 participants living in Portugal to identify how people feel when consuming processed insect bars compared to cereal bars (of equal flavour). A video was recorded “before”, “during” and “after” the consumption of such foods, and the triggered emotions and affective states were identified using the Facial Action Coding System (FACS) and the circumplex model of affect, respectively. After consumption, the Self-Assessment Manikin (SAM) was asked to be completed.

Findings

It was observed that the valence and arousal of the emotions and affective states triggered during consumption were higher in the insect bar than in the cereal bar. Its consumption resulted in surprise and a positive evaluation. Processed insect-based foods may result in a potentially increased acceptance of this new food alternative in the market.

Originality/value

Prior studies briefly identified disgust as a primary emotion activated by insect-based food. The current research deeply studied emotional responses to insect-based processed foods in the Western world using the dimensional emotional models. This study offers arguments for the insect-based food industry to invest in processed food justified by its potential for acceptance. In addition, it motivates further research focused on other insect-based products (e.g. non-processed ones).

Open Access
Article
Publication date: 4 April 2024

Hugo Iasco-Pereira and Rafael Duregger

Our study aims to evaluate the impact of infrastructure and public investment on private investment in machinery and equipment in Brazil from 1947 to 2017. The contribution of our…

Abstract

Purpose

Our study aims to evaluate the impact of infrastructure and public investment on private investment in machinery and equipment in Brazil from 1947 to 2017. The contribution of our article to the existing literature lies in providing a more comprehensive understanding of the presence or absence of the crowding effect in the Brazilian economy by leveraging an extensive historical database. Our central argument posits that the recent decline in private capital accumulation over the last few decades can be attributed to shifts in economic policies – moving from a developmentalist orientation to nondevelopmental guidance since the early 1990s, which is reflected in the diminished levels of public investment and infrastructure since the 1980s.

Design/methodology/approach

We conducted a series of econometric regressions utilizing the autoregressive distributed lag (ARDL) model as our chosen econometric methodology.

Findings

Employing two different variables to measure public investment and infrastructure, our results – robust across various specifications – have substantiated the existence of a crowding-in effect in Brazil over the examined period. Thus, we have empirical evidence indicating that the state has influenced private capital accumulation in the Brazilian economy over the past decades.

Originality/value

Our article contributes to the existing literature by offering a more comprehensive understanding of the crowding effect in the Brazilian economy, utilizing an extensive historical database.

Details

EconomiA, vol. 25 no. 2
Type: Research Article
ISSN: 1517-7580

Keywords

Book part
Publication date: 20 November 2020

J. E. Yalico, M. B. Ortíz, J. A. Larco, A. Gallegos and C. Antonini

The key performance indicators (KPIs) are frequently used in organizations, and they help to transmit the strategy at all levels of the organization. However, the implementation…

Abstract

The key performance indicators (KPIs) are frequently used in organizations, and they help to transmit the strategy at all levels of the organization. However, the implementation of these indicators in small- and medium-sized companies remains a challenge. Many studies reveal two challenges faced by these firms, the lack of knowledge about the KPIs and the lack of alignment of these with the business strategy. For this reason, this chapter investigated the current level of knowledge about KPIs in managers of small and medium enterprises in the wood and timber sector in Peru.

The level of knowledge was measured using the framework of Bloom's Taxonomy in 21 firms. The use and importance that managers assign to performance indicators were evaluated, in order to identify gaps that exist between the strategy and its use.

The results of a survey study show a high degree of variability in the knowledge of KPI-related concepts as well as an average low level of usage. The importance attributed to KPIs was seen as a necessary but not sufficient condition for attaining higher levels of KPI usage.

Article
Publication date: 26 July 2024

Hugo-Alberto Rivera-Rodríguez, Alejandro Beltrán Duque and Juan Camilo Sánchez-López

This article examines strategic management research across Latin America from 1990 to 2023, addressing four critical inquiries: the themes prevalent in strategic discussions, the…

Abstract

Purpose

This article examines strategic management research across Latin America from 1990 to 2023, addressing four critical inquiries: the themes prevalent in strategic discussions, the leading countries in strategic management (SM) publications, the defining characteristics of strategic research in major Latin American economies and the reflection on whether Latin America is a region that generates or follows the knowledge of the Global North.

Design/methodology/approach

Utilizing co-occurrence analysis, this study maps the terrain of SM research in the region, analyzing 4,963 articles indexed in the Scopus database. The authors employed a co-occurrence analysis to map SM research in Latin America, analyzing 4,963 articles from the Scopus database.

Findings

Predominant themes include the theoretical underpinnings of strategy, sustainable development, innovation, tourism and international trade. Brazil, Mexico, Colombia and Chile have emerged as leaders in research volume and thematic diversity, particularly in sustainable development and innovation.

Practical implications

By identifying patterns, behaviors and trends in SM research, the authors uncover methods and tools that, once contextualized for the region, can significantly enhance organizational performance.

Originality/value

This investigation is a pioneering effort, providing a focused analysis on SM research within Latin America. It highlights significant contributions since 1990 across the region's main economies. This study represents one of the first comprehensive mappings of this academic field within Latin America. This is the first article, to the authors’ knowledge, developed to map the intellectual structure of the SM field in Latin America through an analysis of co-occurrences, with emphasis on the region's main economies.

Details

Journal of Management History, vol. 31 no. 1
Type: Research Article
ISSN: 1751-1348

Keywords

Abstract

Details

Handbook of Logistics and Supply-Chain Management
Type: Book
ISBN: 978-0-8572-4563-2

1 – 10 of 55