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Article
Publication date: 15 March 2024

Obed Ofori Yemoh, Richard Opoku, Gabriel Takyi, Ernest Kwadwo Adomako, Felix Uba and George Obeng

This study has assessed the thermal performance of locally fabricated bio-based building envelopes made of coconut and corn husk composite bricks to reduce building wall heat…

Abstract

Purpose

This study has assessed the thermal performance of locally fabricated bio-based building envelopes made of coconut and corn husk composite bricks to reduce building wall heat transmission load and energy consumption towards green building adaptation.

Design/methodology/approach

Samples of coconut fiber (coir) and corn husk fiber bricks were fabricated and tested for their thermophysical properties using the Transient Plane Source (TPS) 2500s instrument. A simulation was conducted using Dynamic Energy Response of Building - Lunds Tekniska Hogskola (DEROB-LTH) to determine indoor temperature variation over 24 h. The time lag and decrement factor, two important parameters in evaluating building envelopes, were also determined.

Findings

The time lag of the bio-based composite building envelope was found to be in the range of 4.2–4.6 h for 100 mm thickness block and 10.64–11.5 h for 200 mm thickness block. The decrement factor was also determined to be in the range of 0.87–0.88. The bio-based composite building envelopes were able to maintain the indoor temperature of the model from 25.4 to 27.4 °C, providing a closely stable indoor thermal comfort despite varying outdoor temperatures. The temperature variation in 24 h, was very stable for about 8 h before a degree increment, providing a comfortable indoor temperature for occupants and the need not to rely on air conditions and other mechanical forms of cooling. Potential energy savings also peaked at 529.14 kWh per year.

Practical implications

The findings of this study present opportunities to building developers and engineers in terms of selecting vernacular materials for building envelopes towards green building adaptation, energy savings, reduced construction costs and job creation.

Originality/value

This study presents for the first time, time lag and decrement factor for bio-based composite building envelopes for green building adaptation in hot climates, as found in Ghana.

Details

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

Keywords

Article
Publication date: 1 May 2023

Oscar Naranjo Del Giudice, Mario Giraldo, Linda Alkire and Gabriel Orozco Restrepo

This study aims to explore how the attitudes, motivations and practices of informal entrepreneurs, who choose service exclusion, prevent them from recognizing and taking advantage…

Abstract

Purpose

This study aims to explore how the attitudes, motivations and practices of informal entrepreneurs, who choose service exclusion, prevent them from recognizing and taking advantage of transformative opportunities and embracing change.

Design/methodology/approach

The authors conducted a two-year study to explore five types of informal entrepreneurs (musicians, street vendors, artists, owners of informal smoke shops and street food vendors). The authors used semi-structured interviews and applied thematic analysis (ATA) of popular music and narratives to shed light on their attitudes, motivations and practices.

Findings

The study shows how potential service participants freely exclude themselves from services and transformative service initiatives, preventing them from realizing opportunities and embracing change that can improve their well-being. The study also demonstrates that to serve human needs fairly, service designers need to recognize that some actors require more attention and resources than others to achieve their potential.

Originality/value

The study challenges the notion that any population experiencing vulnerability wants help and chooses to participate in transformative service initiatives. Service participants can, in fact, exclude themselves from services and transformative service initiatives by free will, demonstrating that service exclusion is a multidirectional phenomenon, not unidirectional. Additionally, the paper analyzes narratives gathered from aesthetic expressions, using principles of ATA, introducing music thematic analysis as a research approach.

Details

Journal of Services Marketing, vol. 37 no. 8
Type: Research Article
ISSN: 0887-6045

Keywords

Article
Publication date: 3 October 2016

Abubakar Manu, Agnes M. Kotoh, Rexford Kofi Oduro Asante and Augustine Ankomah

Available studies on parent-child communication about sexual and reproductive health in Ghana have largely focused on assessing communication frequency, barriers, and who…

Abstract

Purpose

Available studies on parent-child communication about sexual and reproductive health in Ghana have largely focused on assessing communication frequency, barriers, and who communicates with whom within the family. The purpose of this paper is to examine parental and family contextual factors that predict parental communication with young people about sexual and reproductive health.

Design/methodology/approach

A cross-sectional interviewer-administered survey was conducted among 790 parents selected through a multistage sampling technique. The Cronbach’s α statistic was used to assess various parental and family contextual constructs on parent-child communication about sexual and reproductive health. Separate hierarchical multiple regression models for mothers and fathers were constructed to assess predictors of parental communication about sexual and reproductive health.

Findings

Nearly the same factors predicted mothers’ and fathers’ communication with young people about sexual and reproductive health matters. The predictors for both mothers and fathers included high socioeconomic status (SES), family religiousity, parent discipline, perceived parent sexual knowledge and parent trustworthiness. Parent permissiveness predicted only for fathers.

Social implications

Parental communication on sexual and reproductive health is influenced by high SES, family religiousity, parent sexual knowledge, parent discipline and trustworthiness. Interventional programmes on communication about sexual and reproductive health need to take cognisance of these factors to improve parent-child communication about sexual and reproductive health.

Originality/value

This paper adds to the limited evidence on parent-child communication about sexual and reproductive health in Ghana, by examining parental and family contextual factors that influence parental communication with young people about sexual and reproductive health.

Details

Health Education, vol. 116 no. 6
Type: Research Article
ISSN: 0965-4283

Keywords

Article
Publication date: 26 March 2024

Mughees Aslam, Edmund Baffoe-Twum and Sohail Malik

Lean construction (LC) is an innovative approach in the construction industry that has shown significant success in developed countries. Although LC has potential in the…

Abstract

Purpose

Lean construction (LC) is an innovative approach in the construction industry that has shown significant success in developed countries. Although LC has potential in the construction sector of Pakistan, it has not been extensively explored. This study aims to address this knowledge gap by identifying and predicting current lean practices and assessing the strengths and weaknesses of LC implementation in Pakistan.

Design/methodology/approach

Using robust statistical methods to analyze 92 valid responses, the study reveals that approximately 54% of lean practices are currently in use in the construction industry of Pakistan, with a population mean ranging from 52.7% to 55.6%.

Findings

Surprisingly, the research identifies instances where some construction firms in Pakistan are implementing LC practices, even though they have only a limited understanding of its underlying principles. Notably, certain subprinciples, such as visual management, top management commitment to change, employee training, process cycle time reduction and production optimization, are less integrated within the construction industry. Exploring the possibility of implementing LC, recommendations for strategies to implement LC in Pakistan are suggested, aligning with the conceptual model proposed by the researchers.

Originality/value

The novelty of this work offers insights that can serve as a comprehensive guide for developing nations. It provides a structured approach to assess and benchmark LC practices, which, in turn, can contribute to a more efficient and effective construction industry. Moreover, the strategies proposed in this research can aid developing countries in the efficient implementation of LC. This will have a positive implication for both economic and developmental outcomes.

Details

Engineering, Construction and Architectural Management, vol. 31 no. 5
Type: Research Article
ISSN: 0969-9988

Keywords

Article
Publication date: 10 March 2022

Jawad Khan, Imran Saeed, Muhammad Fayaz, Muhammad Zada and Dawood Jan

This study aims to assess the nexus between perceived overqualification (POQ), anger, knowledge hiding, cyberloafing and harmonious passion (HP).

1744

Abstract

Purpose

This study aims to assess the nexus between perceived overqualification (POQ), anger, knowledge hiding, cyberloafing and harmonious passion (HP).

Design/methodology/approach

The authors obtained 264 responses from two public traded firms in Pakistan using a supervisor-subordinated nested design and a multi-time data collecting strategy using convenience sampling.

Findings

The study results indicate that POQ positively affects knowledge hiding and cyberloafing. The authors also found anger as a potential mediator in the direct association between POQ and cyberloafing. In addition, the findings suggest that the association between POQ, knowledge hiding and cyberloafing will be weak when individuals exhibit HP towards their job roles. The results of this research, when considered as a whole, provided support for all of the hypothesised direct and indirect linkages, which has important ramifications for both theory and practise.

Research limitations/implications

This study has both theoretical and practical implications. Grounded on equity theory and relative deprivation theory, this paper asserts that HP should be used to decrease POQ affect. According to the authors, pro-environment employee actions may help build a pro-environment workplace culture as well as a pro-environment sense of responsibility, both of which can help to achieve significant pro-environment results.

Originality/value

This study builds on and fills in the gaps left by earlier research to better aid organisational researchers, practitioners and stakeholders in understanding how POQ, rage, information concealing, cyberloafing and harmonic passion interact with one another.

Details

Journal of Knowledge Management, vol. 27 no. 2
Type: Research Article
ISSN: 1367-3270

Keywords

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