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Article
Publication date: 6 March 2017

Victor Huayamave, Andres Ceballos, Carolina Barriento, Hubert Seigneur, Stephen Barkaszi, Eduardo Divo and Alain Kassab

Wind loading calculations are currently performed according to the ASCE 7 standard. Values in this standard were estimated from simplified models that do not necessarily take into…

Abstract

Purpose

Wind loading calculations are currently performed according to the ASCE 7 standard. Values in this standard were estimated from simplified models that do not necessarily take into account relevant flow characteristics. Thus, the standard does not have provisions to handle the majority of rooftop photovoltaic (PV) systems. Accurate solutions for this problem can be produced using a full-fledged three-dimensional computational fluid dynamics (CFD) analysis. Unfortunately, CFD requires enormous computation times, and its use would be unsuitable for this application which requires real-time solutions. To this end, a real-time response framework based on the proper orthogonal decomposition (POD) method is proposed.

Design/methodology/approach

A real-time response framework based on the POD method was used. This framework used beforehand and off-line CFD solutions from an extensive data set developed using a predefined design space. Solutions were organized to form the basis snapshots of a POD matrix. The interpolation network using a radial-basis function (RBF) was used to predict the solution from the POD method given a set of values of the design variables. The results presented assume varying design variables for wind speed and direction on typical PV roof installations.

Findings

The trained POD–RBF interpolation network was tested and validated by performing the fast-algebraic interpolation to obtain the pressure distribution on the PV system surface and they were compared to actual grid-converged fully turbulent 3D CFD solutions at the specified values of the design variables. The POD network was validated and proved that large-scale CFD problems can be parametrized and simplified by using this framework.

Originality/value

The solar power industry, engineering design firms and the society as a whole could realize significant savings with the availability of a real-time in situ wind-load calculator that can prove essential for plug-and-play installation of PV systems. Additionally, this technology allows for automated parametric design optimization to arrive at the best fit for a set of given operating conditions. All these tasks are currently prohibited because of the massive computational resources and time required to address large-scale CFD analysis problems, all made possible by a simple but robust technology that can yield massive savings for the solar industry.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 27 no. 3
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 10 February 2022

Kwabena Brefo Osei and Danny Turkson

The impact of cash transfers on improving the living conditions of children and reducing early-life deprivations and vulnerabilities are crucial to safeguarding equality of…

Abstract

Purpose

The impact of cash transfers on improving the living conditions of children and reducing early-life deprivations and vulnerabilities are crucial to safeguarding equality of opportunities and achieving sustainable, equitable and inclusive growth within the Sustainable Development Goals. The study aims to examine the change in deprivation rate among children aged 0–17 years between 2010 and 2012, as well as the impact of cash transfer on multidimensional child poverty in Ghana using the global Multidimensional Poverty Index (MPI).

Design/methodology/approach

The study used the Ghana Livelihood Empowerment Against Poverty Impact Evaluation Survey data, which has the baseline data collected in 2010, and the follow-up was collected in 2012. The authors used the difference-in-difference estimation technique to assess the impact of the cash transfer program on the MPI of pre-school (0–5 years) and school-aged (5–17 years) children, and compared the results with that of Propensity Score Matching.

Findings

The deprivation trend reveals that deprivation among pre-school children increased for nutrition, water and sanitation. The estimated result shows that cash transfer significantly reduces MPI of pre-school and school-aged in beneficiary households by 10.5 and 1.3% relative to non-beneficiary children, respectively.

Originality/value

For cash transfer programs to efficiently alleviate child poverty in Ghana, the paper recommends that the conditionality aspect of the program that has been neglected by managers of the program should be enforced. Also, the program should be supplemented with food nutrients for children to reduce the deprivation of nutrition.

Details

International Journal of Social Economics, vol. 49 no. 5
Type: Research Article
ISSN: 0306-8293

Keywords

Article
Publication date: 6 July 2015

Joonkoo Lee and Gary Gereffi

The purpose of this paper is to introduce the global value chain (GVC) approach to understand the relationship between multinational enterprises (MNEs) and the changing patterns…

5337

Abstract

Purpose

The purpose of this paper is to introduce the global value chain (GVC) approach to understand the relationship between multinational enterprises (MNEs) and the changing patterns of global trade, investment and production, and its impact on economic and social upgrading. It aims to illuminate how GVCs can advance our understanding about MNEs and rising power (RP) firms and their impact on economic and social upgrading in fragmented and dispersed global production systems.

Design/methodology/approach

The paper reviews the GVC literature focusing on two conceptual elements of the GVC approach, governance and upgrading, and highlights three key recent developments in GVCs: concentration, regionalization and synergistic governance.

Findings

The paper underscores the complicated role of GVCs in shaping economic and social upgrading for emerging economies, RP firms and developing country firms in general. Rising geographic and organizational concentration in GVCs leads to the uneven distribution of upgrading opportunities in favor of RP firms, and yet economic upgrading may be elusive even for the most established suppliers because of power asymmetry with global buyers. Shifting end markets and the regionalization of value chains can benefit RP firms by presenting alternative markets for upgrading. Yet, without further upgrading, such benefits may be achieved at the expense of social downgrading. Finally, the ineffectiveness of private standards to achieve social upgrading has led to calls for synergistic governance through the cooperation of private, public and social actors, both global and local.

Originality/value

The paper illuminates how the GVC approach and its key concepts can contribute to the critical international business and RP firms literature by examining the latest dynamics in GVCs and their impacts on economic and social development in developing countries.

Details

critical perspectives on international business, vol. 11 no. 3/4
Type: Research Article
ISSN: 1742-2043

Keywords

Book part
Publication date: 5 August 2019

Gabrielle E. Clark

Since the late 1970s, US employers have increasingly drawn upon legal temporary labor under the H-2 visa to address their labor needs in low-waged sectors. Ever since, what Clark…

Abstract

Since the late 1970s, US employers have increasingly drawn upon legal temporary labor under the H-2 visa to address their labor needs in low-waged sectors. Ever since, what Clark calls migrant labor activism and conflict in the courts has similarly erupted. However, as she argues in this chapter, making “adversarial legalism” the H-2 way of law has also been a story of comparative state formation. For, the litigation largely reflects the structure of labor migration created after the demise of government-run migration. In this regard, activists wrestle with the problems created by the new role of global labor intermediaries in the recruitment process, absolute employer control over hiring and firing, and the coercion produced in the shadow of a now minimally interventionist state. Drawing upon archival research, interviews with legal professionals, and the entire case law docket in this area, this chapter puts “adversarial legalism” under the H-2 visa in its historical and political context.

Details

Studies in Law, Politics, and Society
Type: Book
ISBN: 978-1-83867-058-0

Keywords

Article
Publication date: 19 March 2024

Carolina Rivas, Juan José Tarí and Jorge Pereira-Moliner

This paper analyzes how quality management in Ecuador’s national parks is explained through the quality practices contained in Deming’s quality principles from the point of view…

Abstract

Purpose

This paper analyzes how quality management in Ecuador’s national parks is explained through the quality practices contained in Deming’s quality principles from the point of view of employees.

Design/methodology/approach

Quantitative research was conducted with the participation of 254 employees from all national parks in Ecuador who rated the quality management practices (leadership, talent management, work climate and training) in their respective parks.

Findings

The results show that leadership, talent management, work climate and training significantly explain the service quality in the national parks. This study contributes to the adaptation of Deming’s quality principles to national parks via individual and joint analysis of the relationship between leadership, talent management, work climate and training with service quality in order to highlight which practices are the most important to service quality.

Originality/value

The paper provides a comprehensive overview of the key factors that influence service quality in the National Parks of Ecuador. Its multidisciplinary approach and exhaustive research make this work an invaluable tool for understanding and improving the preservation of natural resources and the tourism experience in these protected areas.

Propósito

Este trabajo analiza cómo la gestión de la calidad en los parques nacionales del Ecuador se explica a través de las prácticas de calidad recogidas en los principios de la calidad de Deming desde el punto de vista de los empleados.

Diseño/metodología/enfoque

Se realizó una investigación cuantitativa en la que participaron 254 empleados de todos los parques nacionales del Ecuador quienes valoraron las prácticas de gestión de la calidad (liderazgo, gestión de talento, clima laboral y formación) en sus respectivos parques.

Resultados

Los resultados muestran que el liderazgo, la gestión del talento, el clima laboral y la formación explican significativamente la calidad de servicio en los parques nacionales. Este estudio contribuye en la adaptación de los principios de calidad de Deming a parques nacionales a través del análisis individual y conjunto de la relación entre liderazgo, gestión de talento, clima laboral y formación con la calidad del servicio para destacar qué prácticas son las más importantes para la calidad del servicio ofrecido.

Article
Publication date: 29 April 2020

Geetika Jaiswal and Jung E. Ha-Brookshire

The aim of this study was to investigate how Multinational Enterprises (MNEs) enforce Code of Conduct (CoC) policies, as well as how they affect suppliers' motivation to engage…

Abstract

Purpose

The aim of this study was to investigate how Multinational Enterprises (MNEs) enforce Code of Conduct (CoC) policies, as well as how they affect suppliers' motivation to engage them in managing CoC compliance mechanisms of monitoring, enforcement and transparency in the Indian apparel industry.

Design/methodology/approach

A quantitative survey was conducted using face-to-face surveys. Overall, 210 usable data points were collected and analyzed by use of structural equation modeling.

Findings

Study findings highlighted that hard power strategies currently used by MNEs in the apparel Indian market were primarily coercive in nature. A clear power imbalance between MNEs and suppliers from India was evident. Results suggested that when MNEs attempted to use their powerful position to advance compliance goals, higher level of CoC monitoring was required and suppliers were only extrinsically motivated. Lack of intrinsic motivation in suppliers' resulted in under-developed suppliers' transparency mechanisms. Therefore, findings suggested that MNEs should use hard powers consciously considering the long-term and unintended consequences.

Originality/value

The paper proposes a buyer-supplier power-motivation interaction model that clarifies what MNEs can do to motivate apparel suppliers to implement CoCs successfully in the apparel supply chain. This relationship has not previously been empirically tested.

Details

Journal of Fashion Marketing and Management: An International Journal, vol. 24 no. 2
Type: Research Article
ISSN: 1361-2026

Keywords

Article
Publication date: 28 December 2021

Kwabena Nyarko Addai, Omphile Temoso and John N. Ng'ombe

The authors examine the factors influencing membership in farmer organizations (FO) and their effects on the decision to adopt farm technologies by rice farmers in Ghana.

Abstract

Purpose

The authors examine the factors influencing membership in farmer organizations (FO) and their effects on the decision to adopt farm technologies by rice farmers in Ghana.

Design/methodology/approach

This study uses a farm survey of 900 households from Northern Ghana and a recursive bivariate probit (RBP) model that accounts for selection bias and endogeneity.

Findings

The results indicate that the household head’s decision to adopt machinery and row planting increases by 38.4 and 25.3%, respectively, upon joining a farmer organization. Membership in farmer organization is positively influenced by off-farm income, asset value, farmer organization location and farmer location in Upper West region but negatively by males, age and total livestock units owned. Machinery adoption is positively influenced by membership in farmer organizations and respondent being male but negatively influenced by the years of schooling, farm size, farm distance and location of a farmer in Ghana's Upper East and West regions. Similarly, row planting adoption is positively influenced by membership in farmers' organization but adversely by farm size, farm distance and a farmer's location in Upper East region of Ghana.

Research limitations/implications

It can be concluded that membership in farmers' organizations significantly impacts farm household head’s decision to adopt machinery and row planting in rice production, which potentially enhance crop productivity.

Practical implications

These results show the importance of agricultural stakeholders in encouraging the formation and strengthening of farmer organizations to support the adoption of modern farming technologies.

Originality/value

Developing literature has demonstrated that farmer organizations promote the adoption of agricultural innovations. However, most of these studies have concentrated on conventional agricultural innovations and have used methods that fail to account for potential selection bias. This paper fills this important gap.

Details

International Journal of Social Economics, vol. 49 no. 4
Type: Research Article
ISSN: 0306-8293

Keywords

Article
Publication date: 20 November 2017

Amelia N. Gibson, Renate L. Chancellor, Nicole A. Cooke, Sarah Park Dahlen, Shari A. Lee and Yasmeen L. Shorish

The purpose of this paper is to examine libraries’ responsibility to engage with and support communities of color as they challenge systemic racism, engage in the political…

6556

Abstract

Purpose

The purpose of this paper is to examine libraries’ responsibility to engage with and support communities of color as they challenge systemic racism, engage in the political process, and exercise their right to free speech. Many libraries have ignored the Black Lives Matter (BLM) movement, citing the need to maintain neutrality. Despite extensive scholarship questioning the validity of this concept, the framing of library neutrality as nonpartisanship continues. This paper examines librarianship’s engagement with, and disengagement from black communities through the lens of the BLM movement. It also explores the implications of education, engagement, and activism for people of color and libraries today.

Design/methodology/approach

The authors have engaged the topic from a critical race perspective as a practice in exercising voice – telling stories, presenting counterstories, and practicing advocacy (Ladson-Billings, 1998).

Findings

The assertion that libraries have been socially and politically neutral organizations is ahistorical. When libraries decide not to address issues relevant to people of color, they are not embodying neutrality; they are actively electing not to support the information and service needs of a service population. In order for libraries to live up to their core values, they must engage actively with communities, especially when those communities are in crisis.

Originality/value

As a service field, librarianship has an ethos, values, and history that parallel those of many other service fields. This paper has implications for developing understanding of questions about equitable service provision.

Details

Equality, Diversity and Inclusion: An International Journal, vol. 36 no. 8
Type: Research Article
ISSN: 2040-7149

Keywords

Book part
Publication date: 9 July 2014

Abstract

Details

Labor Relations in Globalized Food
Type: Book
ISBN: 978-1-78350-711-5

Article
Publication date: 20 June 2008

Mareen Gehlich‐Shillabeer

It is imperative that microcredit organisations (MCOs) have a high level of awareness of the environmental context in which their clients pursue their livelihoods. This is…

4333

Abstract

Purpose

It is imperative that microcredit organisations (MCOs) have a high level of awareness of the environmental context in which their clients pursue their livelihoods. This is particularly true for regions that experience regular environmental and economic shocks. However, to date this level of analysis has been largely absent from impact studies. The purpose of this paper is to overcome this lack of contextual analysis by using Bangladesh as a pertinent example.

Design/methodology/approach

Drawing on empirical data and a wide range of literature from a variety of disciplines, including geography, development studies, economics and anthropology, the paper aims to provide an in‐depth analysis of the dual impact of flooding and microcredits in Bangladesh.

Findings

Over the last few years the use of preventive mitigation and coping strategies has declined in Bangladesh. The most widely cited reason for this is financial constraints as a result of declining rural incomes despite a large presence of MCOs in the country. In order to overcome cash shortages many people have resorted to borrowing from a variety of sources, which has become effectively the single most important coping strategy employed. In conjunction with lowered debt capacity and restrictive terms under which microcredits are disbursed, higher indebtedness, creating a potential for poverty traps, is the outcome.

Originality/value

For MCOs to be able to claim that their work alleviates poverty they have to demonstrate sensitivity towards the needs of their clients. Yet, the added risks imposed by recurring environmental stressors have been markedly absent from their studies. This paper proposes that the environmental context not only is important but also draws attention to some of the negative consequences that it can have on livelihood sustainability.

Details

Disaster Prevention and Management: An International Journal, vol. 17 no. 3
Type: Research Article
ISSN: 0965-3562

Keywords

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