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Article
Publication date: 22 May 2007

R.R. Gondim, E.N. Macedo and R.M. Cotta

This paper seeks to analyze transient convection‐diffusion by employing the generalized integral transform technique (GITT) combined with an arbitrary transient filtering…

309

Abstract

Purpose

This paper seeks to analyze transient convection‐diffusion by employing the generalized integral transform technique (GITT) combined with an arbitrary transient filtering solution, aimed at enhancing the convergence behavior of the associated eigenfunction expansions. The idea is to consider analytical approximations of the original problem as filtering solutions, defined within specific ranges of the time variable, which act diminishing the importance of the source terms in the original formulation and yielding a filtered problem for which the integral transformation procedure results in faster converging eigenfunction expansions. An analytical local instantaneous filtering is then more closely considered to offer a hybrid numerical‐analytical solution scheme for linear or nonlinear convection‐diffusion problems.

Design/methodology/approach

The approach is illustrated for a test‐case related to transient laminar convection within a parallel‐plates channel with axial diffusion effects.

Findings

The developing thermal problem is solved for the fully developed flow situation and a step change in inlet temperature. An analysis is performed on the variation of Peclet number, so as to investigate the importance of the axial heat or mass diffusion on convergence rates.

Originality/value

This paper succeeds in analyzing transient convection‐diffusion via GITT, combined with an arbitrary transient filtering solution, aimed at enhancing the convergence behaviour of the associated eigenfunction expansions.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 17 no. 4
Type: Research Article
ISSN: 0961-5539

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Article
Publication date: 3 May 2016

Renato M Cotta, Carolina Palma Naveira-Cotta and Diego C. Knupp

The purpose of this paper is to propose the generalized integral transform technique (GITT) to the solution of convection-diffusion problems with nonlinear boundary conditions by…

348

Abstract

Purpose

The purpose of this paper is to propose the generalized integral transform technique (GITT) to the solution of convection-diffusion problems with nonlinear boundary conditions by employing the corresponding nonlinear eigenvalue problem in the construction of the expansion basis.

Design/methodology/approach

The original nonlinear boundary condition coefficients in the problem formulation are all incorporated into the adopted eigenvalue problem, which may be itself integral transformed through a representative linear auxiliary problem, yielding a nonlinear algebraic eigenvalue problem for the associated eigenvalues and eigenvectors, to be solved along with the transformed ordinary differential system. The nonlinear eigenvalues computation may also be accomplished by rewriting the corresponding transcendental equation as an ordinary differential system for the eigenvalues, which is then simultaneously solved with the transformed potentials.

Findings

An application on one-dimensional transient diffusion with nonlinear boundary condition coefficients is selected for illustrating some important computational aspects and the convergence behavior of the proposed eigenfunction expansions. For comparison purposes, an alternative solution with a linear eigenvalue problem basis is also presented and implemented.

Originality/value

This novel approach can be further extended to various classes of nonlinear convection-diffusion problems, either already solved by the GITT with a linear coefficients basis, or new challenging applications with more involved nonlinearities.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 26 no. 3/4
Type: Research Article
ISSN: 0961-5539

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Book part
Publication date: 15 July 2017

Andreas W. Ebert

Malnutrition is widespread and affects about one-third of humanity. Increasing production and consumption of vegetables is an obvious pathway to improve dietary diversity…

Abstract

Malnutrition is widespread and affects about one-third of humanity. Increasing production and consumption of vegetables is an obvious pathway to improve dietary diversity, nutrition and health. This chapter analyses how climate change is affecting vegetable production, with a special focus on the spread of insect pests and diseases. A thorough literature review was undertaken to assess current global vegetable production, the factors that affect the spread of diseases and insect pests, the implications caused by climate change, and how some of these constraints can be overcome. This study found that climate change combined with globalization, increased human mobility, and pathogen and vector evolution has increased the spread of invasive plant pathogens and other species with high fertility and dispersal. The ability to transfer genes from wild relatives into cultivated elite varieties accelerates the development of novel vegetable varieties. World Vegetable Center breeders have embarked on breeding for multiple disease resistance against a few important pathogens of global relevance and with large evolutionary potential, such as chili anthracnose and tomato bacterial wilt. The practical implications of this are that agronomic practices that enhance microbial diversity may suppress emerging plant pathogens through biological control. Grafting can effectively control soil-borne diseases and overcome abiotic stress. Biopesticides and natural enemies either alone or in combination can play a significant role in sustainable pathogen and insect pest management in vegetable production system. This chapter highlights the importance of integrated disease and pest management and the use of diverse production systems for enhanced resilience and sustainability of highly vulnerable, uniform cropping systems.

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Article
Publication date: 28 August 2024

Kalavila Pathirage Nilmini Bhagya, Priyanka Virajini Medagedara Karunaratne, Gayathri Madubani Ranathunga and Achini Ranaweera

This study systematically explores the literature on global niche market strategies within the fashion industry to allow the mapping of niche practices and examine the benefits…

430

Abstract

Purpose

This study systematically explores the literature on global niche market strategies within the fashion industry to allow the mapping of niche practices and examine the benefits, success factors and characteristics of a niche strategy. Additionally, it identifies data gaps and necessitates a detailed examination to uncover areas with inadequate information.

Design/methodology/approach

This study utilized the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA 2020) method for systematic review and included 70 studies to analyze their findings.

Findings

This systematic literature review pinpoints niche strategies shaping the future of the fashion industry while developing sectors of the textile and apparel industry, fashion technology, fashion retail business, fashion media and communication, luxury fashion, sustainable fashion, adaptive clothing and transgender fashion within the fashion supply chain. A niche market strategy utilizes both pull and push marketing in the fashion industry. Scholarly literature commonly underscores the understanding of the consumer as a pivotal factor in the success of fashion niche market strategy.

Practical implications

This review offers a comprehensive overview of fashion niche strategy practices, aiming to inspire fashion industry professionals. It also serves as a guide for fashion industry professionals, summarizing best practices across various fashion industry sectors to help develop effective niche strategy competencies for firms.

Originality/value

This review thoroughly analyzes niche strategy implementation in the fashion industry, presenting an important resource for individuals new to this sector. It highlights the significance of niche strategies in improving the comprehension of emerging participants in the fashion business.

Details

Journal of Fashion Marketing and Management: An International Journal, vol. 29 no. 1
Type: Research Article
ISSN: 1361-2026

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Article
Publication date: 13 June 2024

Seyed Mohammad Hadi Baghdadi, Ehsan Dehghani, Mohammad Hossein Dehghani Sadrabadi, Mahdi Heydari and Maryam Nili

Spurred by the high turnover in the pharmaceutical industry, locating pharmacies inside urban areas along with the high product perishability in this industry, the pharmaceutical…

124

Abstract

Purpose

Spurred by the high turnover in the pharmaceutical industry, locating pharmacies inside urban areas along with the high product perishability in this industry, the pharmaceutical supply chain management has recently gained increasing attention. Accordingly, this paper unveils an inventory-routing problem for designing a pharmaceutical supply chain with perishable products and time-dependent travel time in an uncertain environment.

Design/methodology/approach

In this study, mathematical programming is employed to formulate a multi-graph network affected by the traffic volume in order to adapt to real-world situations. Likewise, by transforming the travel speed function to the travel time function using a step-by-step algorithm, the first-in-first-out property is warranted. Moreover, the Box–Jenkins forecasting method is employed to diminish the demand uncertainty.

Findings

An appealing result is that the delivery horizon constraint in the under-study multi-graph network may eventuate in selecting a longer path. Our analysis also indicates that the customers located in the busy places in the city are not predominantly visited in the initial and last delivery horizon, which are the rush times. Moreover, it is concluded that integrating disruption management, routing planning and inventory management in the studied network leads to a reduction of costs in the long term.

Originality/value

Applying the time-dependent travel time with a heterogeneous fleet of vehicles on the multi-graph network, considering perishability in the products for reducing inventory costs, considering multiple trips of transfer fleet, considering disruption impacts on supply chain components and utilizing the Box–Jenkins method to reduce uncertainty are the contributions of the present study.

Details

Kybernetes, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0368-492X

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Article
Publication date: 3 June 2022

Bradley G. Winton and Misty A. Sabol

There is no innovation without ideas. More than ever before, these ideas are increasingly difficult to express in a changing environment ripe with emotions. Today's organizations…

784

Abstract

Purpose

There is no innovation without ideas. More than ever before, these ideas are increasingly difficult to express in a changing environment ripe with emotions. Today's organizations need to understand why their employees may or may not develop, voice and implement innovative ideas in the face of this emotional tension. Current literature focuses on external factors that empower employees to innovate. This research attempts to shift the focus to the individual by investigating the relationship between emotional intelligence, openness to experience and innovation voicing behavior.

Design/methodology/approach

This study employs a quantitative survey among 288 US-based workers to test a mediated model of emotional intelligence, openness to experience and innovation-focused promotive voice. The authors assessed both the measurement and structural models through partial least squares structural equation modeling (PLS-SEM), while controlling for a range of variables with the potential to confound construct measurements.

Findings

The findings validated the positive effect of emotional intelligence on openness to experience, while also finding a significant impact of openness to experience on innovation-focused promotive voice. More importantly, evidence suggests that openness to experience mediates the relationship between emotional intelligence and innovation focused promotive voice.

Originality/value

These findings shed new light on why employees might start the innovation process by developing and, ultimately, voicing innovative ideas. Further, this new insight focuses on the impact of intrapersonal factors as it relates to innovation and attempts to fill a gap in what is known about innovative behavior.

Details

European Journal of Innovation Management, vol. 27 no. 1
Type: Research Article
ISSN: 1460-1060

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Article
Publication date: 29 November 2022

Yael Sela Vilensky, Keren Grinberg and Yael Yisaschar-Mekuzas

This study aims to identify the barriers that prevent community nurses in Israel from reporting cases of child maltreatment.

229

Abstract

Purpose

This study aims to identify the barriers that prevent community nurses in Israel from reporting cases of child maltreatment.

Design/methodology/approach

A qualitative study included interviews of 20 community nurses using questions that focused on the following subjects: knowledge of the law and reporting methods, barriers to reporting and the nurses’ outlook on child abuse.

Findings

Nurses felt they have a lack of the professional knowledge needed to identify suspicious signs. Furthermore, finding indicates that there is a lack of understanding regarding the term “reasonable suspicion” under the law among nurses, and a lack of familiarity with the postreporting procedure. The duty to report is not, by itself, sufficient to increase the rate of reporting. The training in this area is insufficient.

Practical implications

Policymakers must formulate clear rules to identify various forms of harm in children and determine the existence of a “reasonable basis” to believe that a crime has been committed among community nurses in Israel so that they can fulfill their legal and moral duty.

Originality/value

Reporting abuse is a professional duty enshrined in law. The enactment of this law in Israel in 1989 created a new reality, designating a legal and moral obligation, on the part of society in general, as well as professionals, to break the code of silence surrounding child abuse. However, the present findings suggest that the rates of reporting among community nurses remain low. As of yet, no research has been conducted as to why nurses are not reporting suspected cases of abuse in Israel, despite the continued existence of this law.

Details

Journal of Children's Services, vol. 17 no. 4
Type: Research Article
ISSN: 1746-6660

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Article
Publication date: 23 August 2021

Fábio Lotti Oliva, Andrei Carlos Torresani Paza, Jefferson Luiz Bution, Masaaki Kotabe, Peter Kelle, Eduardo Pinheiro Gondim de Vasconcellos, Celso Claudio de Hildebrand e Grisi, Martinho Isnard Ribeiro de Almeida and Adalberto Americo Fischmann

This study aims to investigate the risks associated with managing the dispersed knowledge in inter-organizational arrangements for innovation. Specifically, it proposes a model to…

1471

Abstract

Purpose

This study aims to investigate the risks associated with managing the dispersed knowledge in inter-organizational arrangements for innovation. Specifically, it proposes a model to analyze the knowledge management risks in open innovation, applied in four steps.

Design/methodology/approach

Initially, the authors carried out a systematic literature review (SLR) on the concepts that connect knowledge management, inter-organizational arrangements for innovation and risks. The SLR results led to a complementary theoretical review on the conceptual elements in question. Based on the findings, the authors have developed a model to analyze the knowledge management risks in open innovation, which was validated by experts. It was then studied the case of GOL Airlines, a company that uses innovation to overcome the paradox between low-cost and full service in the commercial air transportation industry, considering the application and adjustment of the proposed model.

Findings

Open innovation is one of the inter-organizational arrangement types most applied in the context of innovation. Relations between agents are the primary sources of risks when managing the dispersed knowledge in these arrangements. The authors have found five main risks associated, namely, risk of the innovative effort does not reach the expected objective, risk of knowledge transfer being ineffective, risk of misappropriation of value, risk of dependency (lock-in) and risk of relations.

Practical implications

The practical implication is the proposition of a procedure for applying the model to analyze the knowledge management risks in open innovation, which makes it a prescriptive model for identifying risks. The proposed model is described in four steps, namely, to identify the agents in the environment of the value of open innovation; to identify the types of relations of each agent; to consider the barriers to knowledge management in innovation; and to assess the risks considering the possibilities derived from the agents, their relationships and the barriers. The model is applied in the GOL case and the results are presented.

Originality/value

First, it uses a novel approach to investigate open innovation while studying its risks. This approach considers the knowledge is dispersed and flows from one organization to another through a combination of relations inside the environment of value where the open innovation materializes. Second, it contributes to theory development by opening a research front that fuses four areas: risk management, knowledge management, innovation and inter-organizational arrangements. Third, this paper proposes a theoretical model and presents its operationalization. The study aims to make an impact beyond academia and uses a case study to illustrate the model application in a real and interesting open innovation project to support the business model at GOL Airlines.

Details

Journal of Knowledge Management, vol. 26 no. 3
Type: Research Article
ISSN: 1367-3270

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Article
Publication date: 3 October 2016

Katrin Molina-Besch

Current literature emphasises using a holistic perspective on green packaging development (GPD) as an important strategy for reducing the environmental impact of products’ supply…

2056

Abstract

Purpose

Current literature emphasises using a holistic perspective on green packaging development (GPD) as an important strategy for reducing the environmental impact of products’ supply chain (SC). In practice, however, it can be difficult for packaging developers to strike a balance between all the different environmental requirements on packaging, and trade-offs are common. Life cycle assessment (LCA) can provide this type of information, but many food companies lack the time and resources to conduct detailed assessments. The purpose of this paper is to provide prioritization guidelines for food GPD based on a systematic review of food LCAs.

Design/methodology/approach

As basis for the suggested guidelines, 48 food LCAs covering eight types of food were reviewed following a standardized format. The review consisted of a quantitative analysis of the global warming potential results and a qualitative analysis of the LCAs’ conclusions.

Findings

The prioritization guidelines propose three priority areas for food GPD that companies can select from based on product characteristics. They also provide suggestions for improving packaging in the three priority areas.

Originality/value

The proposed guidelines can help food companies develop packaging solutions that contribute to minimising the environmental impact along food SCs. The review focuses on the role of packaging in food SCs, which has not been previously analysed in published LCA reviews.

Details

British Food Journal, vol. 118 no. 10
Type: Research Article
ISSN: 0007-070X

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Book part
Publication date: 20 January 2023

Ana Célia Araújo Simões, Sonia Maria Guedes Gondim and Katia Elizabeth Puente-Palacios

We test a multilevel exploratory predictive model, examining the relationships between emotional labor (EL) and workers' affectivity traits at a philanthropic hospital, where EL…

Abstract

Purpose

We test a multilevel exploratory predictive model, examining the relationships between emotional labor (EL) and workers' affectivity traits at a philanthropic hospital, where EL involves a process of emotional regulation at work involving emotional display rules, regulatory strategies, and emotional performance. Specifically, we test a model of the mediation effects of regulatory strategies and the moderation effects of emotional demands.

Study design and methods

Participants were 306 workers from 45 different units of a hospital institution, whose performance was evaluated by 30 supervisors. Since workers' emotional display rules could not be represented as shared, unit-level beliefs, we chose two critical demands to test our hypotheses: (1) demand to express compassion and (2) demand to conceal anger or disapproval.

Findings

Using multilevel analysis, we found evidence that deep acting mediates between emotional demands to express compassion and emotional performance. We found further that demands to conceal anger toward coworkers increase the strength of the relationship between negative affectivity and surface acting.

Originality/value

Theoretical and practical implications of the study are also discussed.

Details

Emotions During Times of Disruption
Type: Book
ISBN: 978-1-80382-838-1

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