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Open Access
Article
Publication date: 14 December 2021

Torbjörn Ljungkvist and Börje Boers

The purpose of this study is to understand venture capital family businesses (VCFBs) governance of portfolio companies through the deal process.

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Abstract

Purpose

The purpose of this study is to understand venture capital family businesses (VCFBs) governance of portfolio companies through the deal process.

Design/methodology/approach

This study applies a theory-developing approach. A model of VCFB governance is developed whose key aspects are illuminated by four examples (cases) of VCFBs.

Findings

Recent research suggests that a venture capital firm's corporate deal processes can be divided into the pre-deal, deal and post-deal phases. Based on the age, size and succession dimensions, propositions for how a governance trajectory develops for VCFBs, affecting the deal process of target family firms (TFFs), are presented. These propositions highlight how the family owners' actions and behavior are related to VCFB governance, which in turn, influences the three phases involved in making an investment.

Originality/value

The propositions suggest how personal and administrative VCFBs' governance of the deal process of portfolio companies is significantly affected by centrifugal and centripetal forces that drive the respective types of governance where third-generation family owners appear as changers of governance approach.

Details

Journal of Family Business Management, vol. 13 no. 2
Type: Research Article
ISSN: 2043-6238

Keywords

Article
Publication date: 25 January 2023

Mustafa Turkyilmazoglu

The fluid flow and heat transfer between a rotating cone above a stretching disk is the prime purpose of the current work. Making use of suitable similarity transformations, it is…

137

Abstract

Purpose

The fluid flow and heat transfer between a rotating cone above a stretching disk is the prime purpose of the current work. Making use of suitable similarity transformations, it is shown that the physical phenomenon is represented by a system of similarity equations, which is compatible with that of literature in the absence of wall expansion.

Design/methodology/approach

Numerical simulation of the system enables us to seize the physical character of fluid filling the conical section as well as of the heat transfer, from small to adequately large gap sizes. How the surface expansion will contribute to the momentum and thermal layers; moreover, to the swirl angle from the disk wall, and heat transports from the cone and disk surfaces is studied in detail.

Findings

The results are clear evidences that the wall stretching completely changes the flow and heat behaviors within the conical gap. For instance, the centripetal/centrifugal flow properties of disk/cone are completely altered and the flow swirling angles are increased by means of the wall deformation.

Originality/value

The original value is that at small gap angles faster expansion of the wall overall leads to near-disk surface cooling, while causing the heated region near the cone surface, which has physical implications in practical applications.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 33 no. 6
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 5 September 2023

John W. Moravec and María Cristina Martínez-Bravo

The purpose of this study is to identify global trends in disruptive technological change and map the social and policy implications, particularly as they relate to the…

Abstract

Purpose

The purpose of this study is to identify global trends in disruptive technological change and map the social and policy implications, particularly as they relate to the educational ecosystem and main stakeholders across all levels of education.

Design/methodology/approach

The authors conducted a two-stage meta-analysis of 1,155 scholarly, peer-reviewed articles. The investigation involves a systematized literature review for data identification and collation adhering to defined selection criteria, and a network analysis to scrutinize data, consolidate information and unveil correlations and patterns from the literature review to produce a set of recommendations.

Findings

The study unveiled educational trends related to disruptive technologies and delineated four principal clusters representing how these technologies are transforming the education ecosystem. Additionally, a series of transversal aspects that reveal a societal vulnerability toward future prospects in the realms of ethics, sustainability, resilience, security, and policy were identified.

Practical implications

The findings spotlight an enlarging chasm between industry (and society at large) and conventional education, where many transformations triggered by disruptive technologies remain absent from teaching and learning systems. The study further offers recommendations and envisions potential scenarios, urging stakeholders to respond based on their positions concerning disruptive technologies.

Originality/value

Expanding from the meta-analysis of pertinent literature, this paper offers four collections of curated resources, four mini case studies and four scenarios for policymakers and local communities to consider, enabling them to plot courses for their optimal futures.

Details

On the Horizon: The International Journal of Learning Futures, vol. 31 no. 3/4
Type: Research Article
ISSN: 1074-8121

Keywords

Article
Publication date: 20 November 2023

Canan Kocabasoglu-Hillmer, Evelyne Vanpoucke, Byung-Gak Son and Sinéad Roden

This study explores the potential of paradox theory as a novel theoretical lens to investigate persistent and interdependent tensions in supply chains. It is based on a critical…

Abstract

Purpose

This study explores the potential of paradox theory as a novel theoretical lens to investigate persistent and interdependent tensions in supply chains. It is based on a critical literature review focusing on paradoxes observed within complex supply chains in dynamic business environments, including the articles selected for this special issue, “Environmental Dynamism and Supply Chain Complexity: Managing the Paradoxes.”

Design/methodology/approach

This study introduces the key concepts and themes of the paradox theory literature and possible methodological approaches to studying paradoxes in supply chains. Through a literature review, this study also reflects on the current state of paradox research in the field of operations and supply chain management (OSCM) and proposes future research questions.

Findings

The application of paradox theory to OSCM research is in its early stages. This paper presents opportunities to explore persistent and interdependent tensions in supply chains using paradox theory.

Research limitations/implications

The paper suggests several new research questions that should be translated into more precise propositions. The main implication for research is a call to focus attention on how and why a paradox perspective can help supply chain researchers view complex supply chain problems with fresh eyes.

Originality/value

The study provides the first critical review of paradoxical tensions in OSCM research. While the papers in this special issue contribute significantly to a better understanding of these issues, there is still significant potential for understanding how to respond to paradoxes in supply chains.

Details

International Journal of Operations & Production Management, vol. 43 no. 11
Type: Research Article
ISSN: 0144-3577

Keywords

Open Access
Article
Publication date: 22 August 2023

André M. Marques

This paper aims to test three hypotheses in city growth literature documenting the poverty reduction observed in Brazil and exploring a rich spatial dataset for 5,564 Brazilian…

Abstract

Purpose

This paper aims to test three hypotheses in city growth literature documenting the poverty reduction observed in Brazil and exploring a rich spatial dataset for 5,564 Brazilian cities observed between 1991 and 2010. The large sample and the author's improved econometric methods allows one to better understand and measure how important income growth is for poverty reduction, the patterns of agglomeration and population growth in all Brazilian cities.

Design/methodology/approach

The author identifies literature gaps and use a sizeable spatial dataset for 5,564 Brazilian cities observed in 1991, 2000 and 2010 applying instrumental variables methods. The bias-corrected accelerated bootstrap percentile interval supports the author's point estimates.

Findings

This manuscript finds that Brazilian data for cities does not support Gibrat's law, raising the scope for urban planning and associated policies. Second, economic growth on a sustainable basis is still a vital source of poverty reduction (The author estimates the poverty elasticity at four percentage points). Lastly, agglomeration effects positively affect the city's productivity, while negative externalities underlie the city's development patterns.

Originality/value

Data for cities in Brazil possess unique characteristics such as spatial autocorrelation and endogeneity. Applying proper methods to find more reliable answers to the above three questions is a desirable procedure that must be encouraged. As the author points out in the manuscript, dealing with endogenous regressors in regional economics is still a developing matter that regional scientists could more generally apply to many regional issues.

Details

EconomiA, vol. 24 no. 2
Type: Research Article
ISSN: 1517-7580

Keywords

Article
Publication date: 30 June 2023

Pengfei Yuan, Baiyan He and Lianhong Zhang

Due to the structural layout, mining process, and working environment, curved chains such as horizontal and vertical bends inevitably exist in the armoured face conveyor (AFC)…

Abstract

Purpose

Due to the structural layout, mining process, and working environment, curved chains such as horizontal and vertical bends inevitably exist in the armoured face conveyor (AFC). With the increasing power, conveying capacity, and distance of the AFC, the dynamic influence of these curved chains should be highly emphasized. This paper establishes a dynamic model of the AFC by multi-body system theory and finite segment method, in which the curved chains can be fully considered.

Design/methodology/approach

The scraper chains are firstly grouped into the straight, horizontal bend, vertical convex and concave bend sections. Each bend section running in a circle is simplified as an ideal arc. Through solving its differential equilibrium equation and using Newton's second law, its running resistance is derived. Then the grouped chains are discretized into finite control elements according to the Kelvin model, and the governing equation of each control element is established. The dynamic model of the AFC is obtained by assembling these equations, and the corresponding simulation model is developed by using MATLAB/Simulink.

Findings

Case studies with real scenarios are provided, and simulations are carried out. The results show that the running resistance contributed by the curved chains is larger than the traditional empirical value.

Originality/value

The work in this paper helps the dynamic performance design of AFC, with a deep understanding of the curved chains.

Details

Engineering Computations, vol. 40 no. 5
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 13 January 2023

Natheer Abu-Obeid and Lama Bilal Abuhassan

The goal of the study is to underline “Cinematic Architecture” as another source of architectural thinking and research. This study is also a response to the shortage in empirical…

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Abstract

Purpose

The goal of the study is to underline “Cinematic Architecture” as another source of architectural thinking and research. This study is also a response to the shortage in empirical research on architecture in the cinema. Moreover, the study introduces the architectural components that qualify the cinematic spaces to be influential cinematic experience. This is in addition to investigating the impact of these components on the viewers' cognitive and emotional experience of films.

Design/methodology/approach

In the reported study, an empirical experiment examined scenes from three different movies as experienced by a selected group of audience of movies fans (architects and laypersons). The audience was asked to report feelings the audience had about each scene using a questionnaire that was designed for this purpose, and the audience was asked to write down the aspects that affected the audience's emotions. The experiment evaluated selected emotional states and could specify the architectural features and/or objects that significantly contributed in inducing these emotions.

Findings

This study's findings concluded that emotions, which exist in the positive margin of the emotions “circumplex model,” were influenced by architectural components that were different from those that influenced emotions which lie in the negative margin of the model.

Research limitations/implications

As for filmmakers, the study contributes in developing filmmakers' knowledge about the role of architecture in scenic creation and thus how that knowledge enhances filmmakers' film narrative and the narrative's spatial imagery. As for academia, this study contributes in developing the knowledge about film cognition as related to architectural semiotics. In the context of behavioral approach to architectural design, a behavior setting which is the basic element in environmental design can be dramatized by applying a cinematic narrative to a human activity system within a milieu of architectural design elements.

Practical implications

This study is important for architects, as the study provides architects with an alternative tool for fictional experience and for testing architectural ideas through cinematic architecture. This study also helps in developing new venues for the practice of architecture into the world of fiction. This study also contributes in developing the trend that architectural design thinking can learn from cinematic thinking and practice.

Originality/value

This study introduces an empirical approach to evaluate architectural entities as part of cinematic experience. This study also comes as a response to the shortage in empirical research on architecture in the cinema.

Details

Archnet-IJAR: International Journal of Architectural Research, vol. 18 no. 1
Type: Research Article
ISSN: 2631-6862

Keywords

Article
Publication date: 17 April 2024

Bingwei Gao, Hongjian Zhao, Wenlong Han and Shilong Xue

This study proposes a predictive neural network model reference decoupling control method for the coupling problem between the leg joints of hydraulic quadruped robots, and…

Abstract

Purpose

This study proposes a predictive neural network model reference decoupling control method for the coupling problem between the leg joints of hydraulic quadruped robots, and verifies its decoupling effect..

Design/methodology/approach

The machine–hydraulic cross-linking coupling is studied as the coupling behavior of the hydraulically driven quadruped robot, and the mechanical dynamics coupling force of the robot system is controlled as the disturbance force of the hydraulic system through the Jacobian matrix transformation. According to the principle of multivariable decoupling, a prediction-based neural network model reference decoupling control method is proposed; each module of the control algorithm is designed one by one, and the stability of the system is analyzed by the Lyapunov stability theorem.

Findings

The simulation and experimental research on the robot joint decoupling control method is carried out, and the prediction-based neural network model reference decoupling control method is compared with the decoupling control method without any decoupling control method. The results show that taking the coupling effect experiment between the hip joint and knee joint as an example, after using the predictive neural network model reference decoupling control method, the phase lag of the hip joint response line was reduced from 20.3° to 14.8°, the amplitude attenuation was reduced from 1.82% to 0.21%, the maximum error of the knee joint coupling line was reduced from 0.67 mm to 0.16 mm and the coupling effect between the hip joint and knee joint was reduced from 1.9% to 0.48%, achieving good decoupling.

Originality/value

The prediction-based neural network model reference decoupling control method proposed in this paper can use the neural network model to predict the next output of the system according to the input and output. Finally, the weights of the neural network are corrected online according to the predicted output and the given reference output, so that the optimization index of the neural network decoupling controller is extremely small, and the purpose of decoupling control is achieved.

Details

Robotic Intelligence and Automation, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2754-6969

Keywords

Book part
Publication date: 7 December 2023

Toru Kawai

Development theory in college describes and explains how students develop. This chapter explores ways to balance and consolidate differentiation and integration in this theory…

Abstract

Development theory in college describes and explains how students develop. This chapter explores ways to balance and consolidate differentiation and integration in this theory. First, it traces the origins, history and current development of the theory, which evolves from an integrative understanding to a differentiated one. Subsequently, it identifies the tensions between integration and differentiation in this evolution. This chapter consider two directions towards the theoretical consolidation of differentiation and integration: (1) returning to how integrative understandings were achieved and exploring research directions that further advance integrative understandings; (2) recognizing the parallel evolution of North American student development theory in theorising about learning from a critical realism perspective, and, by overlaying this theory upon such a perspective, reconstructing it towards consolidation. This chapter concludes by discussing two implications for further higher education research that draws on student development theory.

Abstract

Details

The Notorious ESG
Type: Book
ISBN: 978-1-80455-545-3

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