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Article
Publication date: 3 February 2012

G. Sossou

The actual concern for structural engineers is the failure of the structural material to meet the design safety and the safe service life of large span and wide floor space…

Abstract

The actual concern for structural engineers is the failure of the structural material to meet the design safety and the safe service life of large span and wide floor space buildings. The main idea in this present report reflects the combination of the economical use of construction materials with the long and durable safe service life to cover large floor spaces, using precast and prestreseed concrete shell structural members. This paper describes the present ongoing numerical and experimental analysis model used to determine the structural long duration flexural and nonlinear deformation characteristics of reinforced precast elliptical paraboloid concrete shell elements, prestressed in both directions. Horizontal precast and prestressed edge beams supported on prestressed columns are provided to support the longitudinal edges of the shells. This present study has been based on nonlinear differential equations of the concrete matrix creep theory which reflects the correlation between the matrix stress and strain by its modulus of elasticity and on the well-known geometrical preconditions of the theory of elasticity concerning thin plates with small flexural deformations. For structural and crack predictions, the well-known virtual work principles have been used to estimate (a) transient bi-directional strains due to the matrix creep and shrinkage, (b) the resulting time-dependent bi-directional stress redistribution, as well as (c) bi-directional displacement variations in the structural shell elements and finally (d) bi-directional pre-stressing losses in the pre-stressed high yield tendons. The concrete shear stresses have been evaluated by the well-known principle of Juravskiy. A series of original test experiments with once evaluated strength parameters has been planned to be successfully used to provide encouraging support for the numerical evaluations.

Open Access
Article
Publication date: 2 November 2023

Oscar Claveria and Petar Sorić

The purpose of this paper is to investigate the adjustment of government redistributive policies in Scandinavian and Mediterranean countries following changes in income inequality…

1061

Abstract

Purpose

The purpose of this paper is to investigate the adjustment of government redistributive policies in Scandinavian and Mediterranean countries following changes in income inequality over the period 1980–2021.

Design/methodology/approach

The authors first modelled the time-varying dynamics between income inequality and redistribution and then used a non-linear framework to test for the existence of asymmetries and cointegration in their long-run relationship. The authors used two complementary measures of inequality – the share of total income accruing to top percentile income holders and the ratio of the share of total income accruing to top decile income holders divided by that accumulated by the bottom 50% – and computed redistribution as the difference between the two inequality indicators before and after taxes and transfers.

Findings

The authors found that the sign of the relationship between income inequality and redistribution is mostly positive and time-varying. Overall, the authors also found evidence that the impact of increases in inequality on redistributive measures is higher than that of decreases. Finally, the authors obtained a significant long-run relationship between both variables in all countries except Denmark and Spain. These results hold for both Scandinavian and Mediterranean countries.

Originality/value

To the best of the authors’ knowledge, this is the first paper to account for the potential existence of non-linearities and to examine the asymmetries in the adjustment of redistributive policies to increases in income inequality using alternative income inequality metrics.

Details

Applied Economic Analysis, vol. 32 no. 94
Type: Research Article
ISSN: 2632-7627

Keywords

Article
Publication date: 1 August 1998

Jaroslav Mackerle

This paper gives a review of the finite element techniques (FE) applied in the area of material processing. The latest trends in metal forming, non‐metal forming, powder…

4529

Abstract

This paper gives a review of the finite element techniques (FE) applied in the area of material processing. The latest trends in metal forming, non‐metal forming, powder metallurgy and composite material processing are briefly discussed. The range of applications of finite elements on these subjects is extremely wide and cannot be presented in a single paper; therefore the aim of the paper is to give FE researchers/users only an encyclopaedic view of the different possibilities that exist today in the various fields mentioned above. An appendix included at the end of the paper presents a bibliography on finite element applications in material processing for 1994‐1996, where 1,370 references are listed. This bibliography is an updating of the paper written by Brannberg and Mackerle which has been published in Engineering Computations, Vol. 11 No. 5, 1994, pp. 413‐55.

Details

Engineering Computations, vol. 15 no. 5
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 12 October 2015

Manuel Hensmans

The purpose of this paper is to investigate how executives can rapidly gain employee acceptance for strategic change through reciprocal sensegiving. The author draw on a…

1320

Abstract

Purpose

The purpose of this paper is to investigate how executives can rapidly gain employee acceptance for strategic change through reciprocal sensegiving. The author draw on a processual case study of a transformational European merger to study this question, highlighting the properties of reciprocity in making sense of urgent strategic change, then developing them through the lens of a gift exchange.

Design/methodology/approach

The author draws on several qualitative methods to study sensegiving and sensemaking processes in Alpha and Beta from 2011 to 2014: insider-outsider team meetings at the beginning, mid-way and at the end of the merger integration process, ethnographic field notes during a four-month research internship, one focus group meeting with Alpha and Beta managers after the announcement of the redistribution of managerial positions, interviews with a carefully selected sample of top and middle managers, participant observation in key sensegiving meetings with top managers and “custodians,” triangulation with secondary data from the database Factiva, and finally follow-up insider corroboration of the findings by the research intern who took up a management position at Alpha in 2014.

Findings

Likening executive and employee sensegiving to a gift-giving and gift-returning exchange, the author elucidates how executives induce employees to quickly “give in” to strategic change imperatives. the author single out the key third party role of custodians of reciprocity in the mechanism, using the metaphor of the Trojan horse to illustrate its executive use and point to the underexplored darker side of prosocial sensegiving dynamics.

Research limitations/implications

Further research should clarify the long-term advantages and disadvantages of the mechanism. The Trojan horse mechanism possibly sacrifices long-term reciprocity for short-term purposes. Following the example of executives in this case study, use of the Trojan horse mechanism should be followed by attention to socio-political balance concerns, including new procedures that clarify the link between value creation aims and employees’ collective contribution. Without such a cohesion-building exercise, employees’ feelings of procedural injustice may build up, resulting in negative reciprocity in subsequent change projects.

Practical implications

The work indicates that a leader’s visionary credentials are not the main source of her norm-shaping power in a project of urgent strategic change. Visionary credentials are welcomed by the dominant group of employees as long as they are framed as a symbolic management exercise that will not substantially impact socio-political balance. Substantively, employees make sense of the justice of urgent strategic change primarily through the lens of custodians and their “power from the past.”

Social implications

All in all, executives should use the Trojan horse mechanism sparingly, in contexts of urgent strategic change and institutionalized employee behavior. Working with sources and voices of resistance from lower levels of management is more likely to yield symbiotic integration benefits.

Originality/value

Applied to the problem of rapid strategic change in a non-crisis context, the Trojan horse mechanism is a solution to the question: how can executives avoid lengthy socio-political confrontations and quickly induce employee ownership of painful strategic changes?

Details

Journal of Organizational Change Management, vol. 28 no. 6
Type: Research Article
ISSN: 0953-4814

Keywords

Book part
Publication date: 13 May 2019

Rosaria Rita Canale and Rajmund Mirdala

The role of money and monetary policy of the central bank in pursuing macroeconomic stability has significantly changed over the period since the end of World War II…

Abstract

The role of money and monetary policy of the central bank in pursuing macroeconomic stability has significantly changed over the period since the end of World War II. Globalization, liberalization, integration, and transition processes generally shaped the crucial milestones of the macroeconomic development and substantial features of economic policy and its framework in Europe. Policy-driven changes together with variety of exogenous shocks significantly affected the key features of macroeconomic environment on the European continent that fashioned the framework and design of monetary policies.

This chapter examines the key basis of the central bank’s monetary policy on its way to pursue and preserve the internal and external stability of the purchasing power of money. Substantial elements of the monetary policy like objectives and strategies are not only generally introduced but also critically discussed according to their accuracy, suitability, and reliability in the changing macroeconomic conditions. Brief overview of the Eurozone common monetary policy milestones and the past Eastern bloc countries’ experience with a variety of exchange rate regimes provides interesting empirical evidence on origins and implications of vital changes in the monetary policy conduction in Europe and the Eurozone.

Details

Fiscal and Monetary Policy in the Eurozone: Theoretical Concepts and Empirical Evidence
Type: Book
ISBN: 978-1-78743-793-7

Keywords

Article
Publication date: 3 August 2015

Da-Ke Zhang, Sheng Liang, Yi-Chao Yang and Hai-Tao Zhou

The purpose of this paper is to present a constraint and corresponding algorithm enhancing the evolutionary structural optimization (ESO) method, aiming to circumvent its…

Abstract

Purpose

The purpose of this paper is to present a constraint and corresponding algorithm enhancing the evolutionary structural optimization (ESO) method, aiming to circumvent its structure break down problem in some special cases, such as the tie-beam problem.

Design/methodology/approach

A virtual soft material introduced to an element will change the stiffness of the element and may consequently change the stress distribution of that element and its neighbors. With this property, the virtual stiffness of the selected element is calculated and the threshold of the stress changes is derived. The stress threshold is used to evaluate the role of an element on the load path and therefore decide the contribution of the element to the structure. Adding this checking operation into the original ESO iterations enables validation of element removal.

Findings

The reason for structure break down with the ESO method is that the element removal criterion of ESO only works for certain optimal objectives. It cannot guarantee that the structure does not fail. The proposed operation offers a stronger and stricter constraint condition for ESO’s element removal process, preventing the structure from breaking down in some special cases.

Originality/value

The tests on several examples reported in the literature show that the proposed method has the same ability to achieve an optimum solution as the original ESO methods do, while avoiding incorrect deletion of structurally important elements. The benchmark tie-beam problem is solved successfully with this algorithm. The method can be used in other situations as well.

Details

Engineering Computations, vol. 32 no. 6
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 8 March 2011

Deodat E. Adenutsi

The purpose of this paper is to provide further insights into understanding the finance‐growth nexus by verifying the hypothesis that financial development promotes economic…

2390

Abstract

Purpose

The purpose of this paper is to provide further insights into understanding the finance‐growth nexus by verifying the hypothesis that financial development promotes economic growth through its capacity to attract increased international migrant remittances to Ghana.

Design/methodology/approach

A dynamic equilibrium‐correction mechanism model for the period 1987(3)‐2007(4) was estimated following the Johansen cointegration procedure. This approach produced maximum likelihood estimators of the unconstrained cointegrating vector, and suggested the number of cointegrating vectors without relying on an arbitrary normalization.

Findings

The findings reveal two stylized facts with reference to Ghana. First, although financial development Granger‐causes international migrant remittance inflows, it is in itself directly detrimental to endogenous growth. Second, international migrant remittance inflows are statistically significant in explaining variations in endogenous growth in the short run as well as in the long run.

Practical implications

Since directly, financial development hampers endogenous growth, but Granger‐causes increased inflows of migrant remittances, and these remittances impact positively but marginally on endogenous growth, it follows that the sequencing of implementing Ghana's financial reform programmes should be re‐examined, whilst an enabling environment is created to induce Ghanaians living abroad to remit home through official channels.

Originality/value

International migrant remittances were found to be statistically significant in promoting endogenous growth, albeit marginally. Financial development does not directly engender growth, unless it succeeds in attracting non‐debt foreign capital in the form of remittances through the formal sector. Financial development causes migrant remittance inflows which impact positively on growth.

Details

Studies in Economics and Finance, vol. 28 no. 1
Type: Research Article
ISSN: 1086-7376

Keywords

Article
Publication date: 18 October 2022

Rosario Michel-Villarreal

This study aims to advance current knowledge on resilient and sustainable short food supply chains, by identifying sustainability practices and resilience capabilities and how…

Abstract

Purpose

This study aims to advance current knowledge on resilient and sustainable short food supply chains, by identifying sustainability practices and resilience capabilities and how these interact.

Design/methodology/approach

Empirical data were collected from three cases via 16 semi-structured interviews. This methodological choice answers a call to develop more case studies to better understand perspectives on sustainable and resilient supply chains. Thematic analysis was used for data analysis.

Findings

Sustainability practices may positively enhance the resilience of short food supply chains, and vice versa. Specifically, social sustainability practices are perceived as enablers of resilience capabilities, and production practices can have a positive or negative impact on resilience capabilities.

Originality/value

This research addresses an important gap in the current short food supply chains literature, by looking at sustainability and resilience in an integrated way for the first time. The proposed working hypotheses and conceptual framework illustrate the complex relationship between social, economic and environmental sustainability and five resilience capabilities within short food supply chains.

Details

British Food Journal, vol. 125 no. 5
Type: Research Article
ISSN: 0007-070X

Keywords

Book part
Publication date: 12 September 2003

Ronald K Mitchell

Global entrepreneurship may be defined to be the creation of new, value-adding transactions or transaction streams anywhere on the globe. The objective of this chapter is to…

Abstract

Global entrepreneurship may be defined to be the creation of new, value-adding transactions or transaction streams anywhere on the globe. The objective of this chapter is to present and examine a theory of global entrepreneurship. At the World Economic Forum held in Davos, Switzerland, in January 1999, UN Secretary General Kofi Annan called for global entrepreneurship to meet the needs of the disadvantaged and the requirements of future generations. This chapter first presents a transaction cognition theory of global entrepreneurship that is intended as a path for research that responds to this call. Second, this chapter examines the theory from three critical viewpoints: (1) capability for explanation; (2) theoretical and operational utility; and (3) verifiability through the logic of scientific inference, and presents likely propositions that are surfaced by the analysis. Finally in this chapter, some of the likely implications of this theory within the context of globalization are discussed.

Details

Cognitive Approaches to Entrepreneurship Research
Type: Book
ISBN: 978-1-84950-236-8

Content available
Book part
Publication date: 23 October 2017

Abstract

Details

Economic Imbalances and Institutional Changes to the Euro and the European Union
Type: Book
ISBN: 978-1-78714-510-8

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