Influence of mechanical imperfection on the transference of Love-type waves in viscoelastic substrate overloaded by visco-micropolar composite structure

2020 ◽  
Vol 37 (9) ◽  
pp. 3407-3429
Author(s):  
Manisha Maity ◽  
Santimoy Kundu ◽  
Raju Kumhar ◽  
Shishir Gupta
Keyword(s):  
Phase Velocity ◽  
Soil Mechanics ◽  
Equations Of Motion ◽  
Vibrational Analysis ◽  
Content Type ◽  
Separation Of Variable ◽  
The Impact ◽  
Phase Velocity And Attenuation ◽  
Practical Implications ◽  
Stratified Model

Purpose This mathematical analysis has been accomplished for the purpose of understanding the propagation behaviour like phase velocity and attenuation of Love-type waves through visco-micropolar composite Earth’s structure. Design/methodology/approach The considered geometry of this problem involves a micropolar Voigt-type viscoelastic stratum imperfectly bonded to a heterogeneous Voigt-type viscoelastic substratum. With the aid of governing equations of motion of each individual medium and method of separation of variable, the components of micro-rotation and displacement have been obtained. Findings The boundary conditions of the presumed geometry at the free surface and at the interface, together with the obtained components of micro-rotation, displacement and mechanical stresses give rise to the determinant form of the dispersion relation. Moreover, some noteworthy cases have also been extrapolated in detail. Graphical interpretation irradiating the impact of viscoelasticity, micropolarity, heterogeneity and imperfectness on the phase velocity and attenuation of Love-type waves is the principal highlight of the present study. Practical implications In this study, the influence of the considered parameters such as micropolarity, viscoelasticity, heterogeneity, and imperfectness has been elucidated graphically on the phase velocity and attenuation of Love-type waves. It has been noticed from the graphs that with the rising magnitude of micropolarity and heterogeneity, the attenuation curves shift upwards, that is the loss of energy of these waves takes place in a rapid way. Hence, from the outcomes of the present analysis, it can be concluded that heterogeneous micropolar stratified media can serve as a helpful tool in increasing the attenuation or in other words, loss of energy of Love-type waves, thus reducing the devastating behaviour of these waves. Originality/value Till date, the mathematical modelling as well as vibrational analysis of Love-type waves in a viscoelastic substrate overloaded by visco-micropolar composite Earth’s structure with mechanical interfacial imperfection remain unattempted by researchers round the globe. The current analysis is an approach for studying the traversal traits of surface waves (here, Love-type waves) in a realistic stratified model of the Earth’s crust and may thus, serves as a dynamic paraphernalia in various domains like earthquake and geotechnical engineering; exploration geology and soil mechanics and many more, both in a conceptual as well as pragmatic manner.

Perceived workplace gender-bias and psychological impact

2019 ◽  
Vol 43 (3/4) ◽  
pp. 339-353 ◽  
Author(s):  
Siham Lekchiri ◽  
Cindy Crowder ◽  
Anna Schnerre ◽  
Barbara A.W. Eversole
Keyword(s):  
Gender Bias ◽  
Critical Incident ◽  
Psychological Impact ◽  
Working Women ◽  
Content Type ◽  
Treatment Bias ◽  
Male Dominated ◽  
The Impact ◽  
Organizational Mechanisms ◽  
Practical Implications

Purpose The purpose of this paper is to explore the experiences of working women in a male-dominated country (Morocco) and unveil the unique challenges and everyday gender-bias they face, the psychological impact of the perceived gender-bias and, finally, identify a variety of coping strategies or combatting mechanisms affecting their motivation and retention in the workplace. Design/methodology/approach Empirical evidence was obtained using a qualitative research method. The Critical Incident Technique (CIT) was used to collect incidents recalled by women in the select institution reflecting their perceptions of their managers’ ineffective behaviors towards them and the impact of these behaviors. The critical incidents were inductively coded, and behavioral statements were derived from the coded data. Findings The qualitative data analysis led them to structure the data according to two theme clusters: The perceived gender-bias behaviors (Covert and evident personal and organizational behaviors) and Psychological impacts resulting from the perceived bias. These behavioral practices included abusive behaviors, unfair treatment, bias and lack of recognition. The psychological impact elements involved decreased productivity, depression, anxiety and low self-esteem. Practical implications Understanding these experiences can facilitate the identification of strategies geared towards the retention of women in the workforce, and Moroccan organizations can develop and implement strategies and policies that are geared towards eliminating gender-bias in the workplace and to retaining and motivating women who remain ambitious to work in male-dominated environments and cultures. Originality/value This paper provides evidence that sufficient organizational mechanisms to support women in male-dominated environments are still unavailable, leaving them to find the proper coping mechanisms to persevere and resist.

Embedding employability within higher education for the profession of policing

2019 ◽  
Vol 9 (3) ◽  
pp. 319-328
Author(s):  
Ian Pepper ◽  
Ruth McGrath
Keyword(s):  
Higher Education ◽  
Design Methodology ◽  
Research Study ◽  
Longitudinal Research ◽  
Evidence Base ◽  
Content Type ◽  
Educational Provision ◽  
Professional Body ◽  
The Impact ◽  
Practical Implications

Purpose The purpose of this paper is to evaluate the impact of an employability module, the College of Policing Certificate in Knowledge of Policing (CKP), on students’ career aspirations, their confidence and wish to join the police along with the appropriateness of the module. This will inform the implementation of employability as part of the College of Policing-managed Police Education Qualifications Framework (PEQF). Design/methodology/approach A three-year longitudinal research study used mixed methods across four points in time to evaluate the impact on students studying the employability module. Findings The research suggests that the employability-focussed CKP was useful as an introduction to policing, it developed interest in the police and enhanced the confidence of learners applying to join. Lessons learnt from the CKP should be considered during the implementation of the PEQF. Research limitations/implications The ability to generalise findings across different groups is limited as other influences may impact on a learner’s confidence and employability. However, the implications for the PEQF curriculum are worthy of consideration. Practical implications As the police service moves towards standardised higher educational provision and evolution of policing as a profession, lessons can be learnt from the CKP with regards to the future employability of graduates. Originality/value Enhancing the employability evidence base, focussing on policing, the research identified aspects which may impact on graduates completing a degree mapped to the PEQF. The research is therefore of value to higher education and the professional body for policing.

Employee emotional displays in the extended service encounter

2019 ◽  
Vol 31 (1) ◽  
pp. 115-136 ◽  
Author(s):  
Magnus Soderlund ◽  
Hanna Berg
Keyword(s):  
Marketing Communications ◽  
Emotional Expressions ◽  
Service Firms ◽  
Still Images ◽  
Content Type ◽  
Emotional Displays ◽  
Service Setting ◽  
Low Levels ◽  
The Impact ◽  
Practical Implications

Purpose The purpose of this paper is to examine the impact of happiness expressed by service firm employees when they are depicted in marketing communications materials, such as printed ads and videos. Design/methodology/approach Two experiments were conducted in a fitness service setting, in which employee display of happiness was manipulated (low vs high). Findings Both experiments showed that expressions of high levels of happiness produced a more positive attitude toward the service employee than expressions of low levels of happiness. Moreover, the impact of the expression of happiness on the evaluation of the employee was mediated by several variables, which suggests that the influence of depicted employees’ emotional expressions can take several routes. Practical implications The results imply that service firms should not only be mindful about which specific employee they select for appearing in marketing communications materials, they should also pay attention to the emotional displays of selected employees. Originality/value The present study contributes to previous research by assessing a set of potential mediators to explain why displays of happiness influence consumers, and by examining these effects in a marketing communications setting in which the customer is exposed to still images or video-based representations of the employee. The present study also focuses explicitly on happiness rather than on smiles.

Understanding how the contextual variables influence political behaviour in strategic decision-making

2014 ◽  
Vol 7 (3) ◽  
pp. 226-250 ◽  
Author(s):  
Said Elbanna ◽  
Ioannis C. Thanos ◽  
Vassilis M. Papadakis
Keyword(s):  
Decision Making ◽  
Strategic Decision ◽  
Strategic Decision Making ◽  
Strategic Decisions ◽  
Empirical Examination ◽  
Content Type ◽  
Political Behaviour ◽  
Practitioner Education ◽  
The Impact ◽  
Practical Implications

Purpose – The purpose of this paper is to enhance the knowledge of the antecedents of political behaviour. Whereas political behaviour in strategic decision-making (SDM) has received sustained interest in the literature, empirical examination of its antecedents has been meagre. Design/methodology/approach – The authors conducted a constructive replication to examine the impact of three layers of context, namely, decision, firm and environment, on political behaviour. In Study 1, Greece, we gathered data on 143 strategic decisions, while in Study 2, Egypt, we collected data on 169 strategic decisions. Findings – The evidence suggests that both decision-specific and firm factors act as antecedents to political behaviour, while environmental factors do not. Practical implications – The findings support enhanced practitioner education regarding political behaviour and provide practitioners with a place from which to start by identifying the factors which might influence the occurrence of political behaviour in SDM. Originality/value – The paper fills important gaps in the existing research on the influence of context on political behaviour and delineates interesting areas for further research.

Reducing transportation emissions

2016 ◽  
Vol 23 (3) ◽  
pp. 674-703 ◽  
Author(s):  
Henrik Pålsson ◽  
Ola Johansson
Keyword(s):  
Service Providers ◽  
Freight Transportation ◽  
Industrial Sector ◽  
Content Type ◽  
Logistics Service Providers ◽  
Minor Influence ◽  
Transportation Emissions ◽  
Reduce Emissions ◽  
The Impact ◽  
Practical Implications

Purpose – The purpose of this paper is to examine the intention of companies to reduce transportation emissions by 2020 and the barriers and the discriminating factors that affect the reduction. Design/methodology/approach – A literature review identified potential logistical and technical actions and their barriers, and discriminating factors for reducing transportation emissions. A survey of freight transport-intensive industries in Sweden examined the effects of, intention for implementation of and barriers to 12 actions to reduce CO2 emissions from freight transportation. In total, 172 logistics managers responded, representing a response rate of 40.3 per cent. Findings – Logistics service providers (LSPs) and freight owners are likely to reduce a considerable amount of CO2 emissions from freight transportation by 2020 using a combination of actions. The lowest level of confidence was for reducing CO2 emissions by changing logistics structures, while there was greater confidence by means of operational changes. The actions have few barriers, but there is often a combination of barriers to overcome. Three discriminating factors influence the intention of a firm to reduce transportation emissions: perceived potential, company size and LSP/freight owner. The industrial sector of a freight owner has minor influence. Companies that are particularly likely to reduce emissions are LSPs, large companies, and those that perceive a large reduction potential. Research limitations/implications – Logistical and technical barriers appear to hinder companies from implementing actions, while organisational barriers and external prerequisites do not. Barriers cannot be used to predict companies’ intentions to reduce transportation emissions. The authors examined the impact of three discriminating factors on reduction of transportation emissions. The research is based on perceptions of well-informed managers and on companies in Sweden. Practical implications – The findings can be used by managers to identify firms for benchmarking initiatives and emissions-reducing strategies. Originality/value – The study provides insights into intended CO2 reductions in transportation by 2020. It presents new knowledge regarding barriers and discriminating factors for implementing actions to reduce transportation emissions.

Modeling the implicit brand: capturing the hidden drivers

2017 ◽  
Vol 26 (6) ◽  
pp. 600-615 ◽  
Author(s):  
Marco Vriens ◽  
Alessandro Martins Alves
Keyword(s):  
Durable Goods ◽  
Implicit Attitudes ◽  
Response Style ◽  
Brand Attitudes ◽  
Content Type ◽  
Explicit Attitudes ◽  
Brand Building ◽  
Implicit Data ◽  
The Impact ◽  
Practical Implications

Purpose This paper aims to investigate modeling implicit attitudes as potential drivers of overall brand attitudes and stated behavior and investigate how the results are expected to be different from brand driver models that are based on explicit attitudes. Design/methodology/approach Data are collected via online surveys in five countries across 15 categories with sample sizes for each category/country combination in the range of about N = 1,000. Findings Implicit attitudes result in a higher number of significant effects than their explicit counterparts when used to explain behavioral intentions, brand closeness and brand usage in a multivariate situation with potential 12 brand attitude drivers. The authors also find fewer counter-intuitive effects in the implicit models. The results are consistent across 5 countries and across 15 categories (including CPG products, services and durable goods). They also show that implicit attitudes are less susceptible to response style effects (e.g. social desirability bias). Research limitations/implications The findings have implications for brand building and shopper activation. Further research should look into the impact of using implicit data on finding different brand segmentation and brand mapping results. Practical implications The findings have implications for brand building and shopper activation. Originality/value This paper contributes to the fast-growing field of implicit attitudes. The paper confirms and generalizes previous findings. This is the first paper to the authors’ knowledge that has investigated the impact of implicit attitudes on overall brand attitudes and stated behavior in a multivariate context.

What makes court-referred mediation effective?

2014 ◽  
Vol 25 (1) ◽  
pp. 21-37 ◽  
Author(s):  
Amira Galin
Keyword(s):  
Design Methodology ◽  
Content Type ◽  
Process And Outcome ◽  
Refusal To Participate ◽  
The Impact ◽  
Practical Implications ◽  
Theoretical Insight ◽  
Insight Into ◽  
Low Rate

Purpose – The purpose of this paper is to obtain insight into court-referred mediation in the Israeli Labor Courts, by analyzing its processes and outcomes, as a function of tactics used by both the disputants and the mediator. Design/methodology/approach – Observation of 103 court-referred mediations, for each of which a detailed process and outcome were documented. Data on disputants' refusal to participate in the mediation was also collected. At the end of each mediation case, disputants were given a questionnaire in which they expressed their satisfaction with the outcome and their evaluation of the mediator's contribution. Findings – A low rate of refusal to participate in court-referred mediation was found. Also, the higher the ratio of soft tactics to pressure tactics employed (by all parties involved) during the process, the higher the rate of agreements. Mediators use significantly more soft tactics than disputants, and are more active in using tactics. The two significant variables that predict the mediation's agreement are the ratio between soft tactics to pressure tactics used by all parties, and mediator contribution to the process. Practical implications – The significant role of soft tactics in the process, outcome, and satisfaction of court-referred mediation may serve as a guideline for disputants and mediators. Originality/value – This unique research, which examines the impact of tactics on court-referred mediation, may provide added and significant theoretical insight into its process and outcome, as well as a better understanding of other “hybrid” (compulsory at the beginning, voluntary at the end) mediations.

The impact of project methodologies on project success in different project environments

2016 ◽  
Vol 9 (2) ◽  
pp. 364-388 ◽  
Author(s):  
Robert Joslin ◽  
Ralf Müller
Keyword(s):  
Project Success ◽  
Research Model ◽  
Content Type ◽  
Industrial Sectors ◽  
Project Environment ◽  
Project Governance ◽  
The Impact ◽  
Matching Techniques ◽  
The Relationship ◽  
Practical Implications

Purpose – The purpose of this paper is to qualitatively validate the constructs of a theoretically derived research model while gaining insights to steer the direction of a greater study on methodologies, their elements, and their impact on project success. In doing so, to investigate whether different project environments, notably project governance, impacts the relationship between methodologies and project success. Design/methodology/approach – A deductive approach was applied to validate a theoretically derived research model. In total, 19 interviews across 11 industrial sectors and four countries were used to collect data. Pattern-matching techniques were utilized in the analysis to deductively validate the research model. Findings – There is a positive relationship between project methodology elements and the characteristics of project success; however, environmental factors, notably project governance, influence the use and effectiveness of a project methodology and its elements with a resulting impact on the characteristics of project success. Research limitations/implications – Project governance plays a major role in the moderating effect of a project methodology’s effectiveness. Contingency theory is applicable to a project’s methodology’s selection and its customization according to the project environment. Practical implications – Understand the impact of project methodologies and their elements on the characteristics of project success while being moderated by the project environment, for example, the risk of suboptimal project performance due to the effectiveness of methodology elements being negatively impacted by the project environment. Originality/value – The impact of a project methodology (collection of heterogeneous-related elements) on the characteristics of project success is identified while being moderated by the project environment, notably project governance.

FATCA violation underlies latest US tax and securities fraud charges

2015 ◽  
Vol 16 (1) ◽  
pp. 74-76
Author(s):  
Miriam Fisher ◽  
Brian McManus
Keyword(s):  
Law Enforcement ◽  
Service Providers ◽  
Task Force ◽  
Tax Compliance ◽  
Financial Fraud ◽  
Securities Fraud ◽  
Content Type ◽  
The Impact ◽  
First Time ◽  
Practical Implications

Purpose – To explain the details and implications of a September 9, 2014 federal indictment, US v. Robert Bandfield, the first time a Foreign Account Tax Compliance Act (FATCA) violation has been charged as an “overt act” in furtherance of a tax conspiracy and securities fraud. Design/methodology/approach – Provides background, including the enactment of FATCA and the details of the indictment; describes an undercover investigation conducted by President Obama’s Financial Fraud Enforcement Task Force; and discusses the warnings this indictment sends to the global financial community. Findings – The indictment confirms the coordinated and aggressive tactics US law enforcement is now employing to investigate and prosecute offshore financial fraud. Practical implications – Banks and financial service providers need to be aware of the impact of enhanced US regulatory obligations and implement appropriate compliance measures. These institutions must also remain sensitive to risks presented by unscrupulous customers. Finally, they must be ready to manage appropriately information-gathering and investigatory inquiries originating with US authorities. Originality/value – Practical guidance from experienced tax controversy lawyers.

The impact of audit reforms on objectivity during the performance of non-audit services

2014 ◽  
Vol 29 (3) ◽  
pp. 222-236 ◽  
Author(s):  
Richard G. Brody ◽  
Christine M. Haynes ◽  
Craig G. White
Keyword(s):  
Audit Quality ◽  
Content Type ◽  
Auditor Liability ◽  
Internal Auditors ◽  
External Auditors ◽  
Regulatory Perspective ◽  
External Auditor ◽  
The Impact ◽  
Practical Implications ◽  
Non Audit Services

Purpose – This research aims to explore whether recent audit reforms have improved auditor objectivity when performing non-audit services. Design/methodology/approach – In two separate experiments, the authors tested whether external and internal auditors' inventory obsolescence judgments are influenced by their client's (or company's) role as the buyer or seller in an acquisition setting. Findings – External auditors assessed the likelihood of inventory obsolescence objectively, regardless of their consulting role in the acquisition setting. Internal auditors assessed the likelihood of inventory obsolescence as higher when consulting for the buyer than when consulting for the seller, consistent with the supposition that the buyer would prefer to write-down inventory and negotiate a lower purchase price, whereas the seller would prefer the inventory not be written down. Practical implications – From a regulatory perspective, external auditors may be relying too much on the work of internal auditors if internal auditors' lack of objectivity as consultants extends to their assurance role. Originality/value – This paper extends prior research in the area of internal and external auditor objectivity and is the first paper to include both subject groups in the same experiment. It also addresses the current policy issues that may have a significant effect on audit quality and auditor liability.

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