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Article
Publication date: 1 July 1956

MAGNESIUM‐LITHIUM binary alloys which contain just enough lithium (about 11 wt.%) to produce a single‐phase, body‐centred cubic structure have shown surprisingly good…

Abstract

MAGNESIUM‐LITHIUM binary alloys which contain just enough lithium (about 11 wt.%) to produce a single‐phase, body‐centred cubic structure have shown surprisingly good resistance to corrosion in 3% salt solution. High‐strength alloys having about 9% lithium and various quantities of aluminium, zinc and other elements have a mixed hexagonal‐plus‐body‐centred cubic structure. Such alloys generally have poorer corrosion resistance than the single‐phase binaries. Three of the high‐strength alloys were exposed for 32 months to the sea‐coast atmosphere near Daytona Beach, Florida. For comparison purposes, samples of commercial AZ31A‐H24 alloy were exposed at the same time. All alloys were in the form of 4 × 6 × 0.064 in. panels. The AZ31A sheet had corrosion resistance only slightly superior to that of an alloy containing Mg‐8.7%, Li‐5%, Al‐8%, Zn. The other two alloys, Mg‐8.8%, Li‐7%, Al‐0.05%, Sn‐1%, Mn, and Mg‐8.8%, Li‐7%, Al‐1%, Sn, had much poorer corrosion resistance.

Details

Anti-Corrosion Methods and Materials, vol. 3 no. 7
Type: Research Article
ISSN: 0003-5599

Content available
Article
Publication date: 1 April 2001

66

Abstract

Details

Industrial Robot: An International Journal, vol. 28 no. 2
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 25 February 2014

Rodney McAdam, Renee Reid and Mark Shevlin

Innovation efforts of small- or medium-sized enterprises (SMEs) in peripheral regions are limited both by innate resource limitations and by location factors such as…

2403

Abstract

Purpose

Innovation efforts of small- or medium-sized enterprises (SMEs) in peripheral regions are limited both by innate resource limitations and by location factors such as excessive distance from key markets and higher cost bases for new technology. However, the emergence of the knowledge economy may enable leveraging of knowledge to address such innate limitations. The aim of this study is to twofold. First, the study explores how SMEs in peripheral areas, i.e. challenging regions, seek to implement innovation from a path perspective by examining the contributions from antecedent and mediator variables or constructs, including knowledge-based factors identified in the literature, using a cross-sectional survey of SMEs at firm level. Second, to further examine how these path model constructs and relationships contribute in a causal manner to innovation implementation at an activity level of analysis based on knowledge-based view and dynamic capability theory, using a case study analysis.

Design/methodology/approach

A sequential mixed method approach is used. In relation to the first aim a hypothetical path model is tested using structured equation modelling techniques based on a cross-sectional survey of SMEs in peripheral regions (n=604). For the second aim, to further examine how the path model constructs and relationships contribute to innovation implementation in a causal manner at an activity level of analysis, an explanatory case-based approach is used based on dynamic capability theory.

Findings

The findings show that at a firm level knowledge factors influence innovation implementation as mediating factors through knowledge acquisition and assimilation which is consistent with potential absorptive capacity, and knowledge sharing linkages. Antecedent factors of lifecycle, leadership, culture and historical propensity to innovation were found to interact with the mediating variables of knowledge acquisition and assimilation, TQM/business improvement and knowledge sharing linkages (external), to produce a range of innovation outputs, including knowledge transformation and sales of new products and services from innovation activities. Based on the case study findings the underlying knowledge-based dynamic capabilities which contribute to the relationships within the path model were identified and further research agendas established.

Originality/value

There is a relative paucity of studies on innovation implementation within SMEs in peripheral regions using a knowledge-based perspective at firm level, as opposed to regional level (e.g. regional innovation studies). In this context unique resource limitations and the contribution of knowledge-based factors need to be addressed. This study seeks to compliment regional level studies by making a contribution at both a cross-sectional SME or firm level and at an activity level of analysis in this area and to identify areas for further research.

Details

International Journal of Entrepreneurial Behavior & Research, vol. 20 no. 1
Type: Research Article
ISSN: 1355-2554

Keywords

Article
Publication date: 13 March 2017

Edda Tandi Lwoga, Tumaini Nagu and Alfred Said Sife

This paper aims to determine factors that influence people living with HIV (PLHIV) to engage in internet-based HIV information seeking behaviour in selected Tanzanian…

Abstract

Purpose

This paper aims to determine factors that influence people living with HIV (PLHIV) to engage in internet-based HIV information seeking behaviour in selected Tanzanian public regional hospitals.

Design/methodology/approach

The authors conducted a questionnaire-based survey to 221 PLHIV in two regional public hospitals in Mwanza and Dar es Salaam, Tanzania. They assessed the validity and reliability of the measurement model by using exploratory factor analysis and also used hierarchical regressions to examine the research hypotheses by using Statistical Package for Social Science.

Findings

The study found that there is low usage of internet (24.3 per cent) to search online HIV information. Factors related to attitude and information source accessibility predicted usage intentions of internet, while facilitating conditions, information source accessibility and usage intention of internet determined actual use of internet among PLHIV. Age moderated the effects of information source quality and social influence on usage intention of internet, and the effects of the information source accessibility and social influence on actual use of internet. The findings imply that younger PLHIV were more likely to use internet to access HIV information than the older respondents due to perceived ease of accessing information and quality of the online content. Further, older PLHIV were more influenced by the views of others when making decisions to use internet.

Practical implications

Health-care providers and libraries need to conduct regular studies on health needs of patients, and promote benefits of accessing online information; website designers need to design user-friendly databases; public libraries need to include a section on health information; hospital and public librarians need to provide catalogues of health information resources on their websites; and health-care providers need to improve technological infrastructure.

Originality/value

This is a comprehensive study that provides empirical findings to better understand the HIV information seeking behaviour from actual internet users, particularly factors that may influence PLHIV to seek online information in Tanzania.

Details

Journal of Systems and Information Technology, vol. 19 no. 1/2
Type: Research Article
ISSN: 1328-7265

Keywords

Open Access
Article
Publication date: 20 October 2022

Raghuveer Negi, Muthusamy Arumugam, Abuzar Nomani and Shetty Deepa Thangam Geeta

The impact of Goods and Service Tax (GST) on the motor and pump exports in the Coimbatore region is measured in this study using various parameters and scales. The data…

Abstract

Purpose

The impact of Goods and Service Tax (GST) on the motor and pump exports in the Coimbatore region is measured in this study using various parameters and scales. The data collected from exporters were used to identify the pros and cons of GST, stating their opinions on variables considered by the researchers through extensive literature on GST and exports.

Design/methodology/approach

The data were collected from 220 motors and pump exporters through a field survey from the month of January to September 2021. The impacts have been measured using principal component analysis (PCA) and confirmatory factor analysis (CFA). The factor analyses and CFA will derive the positive and negative impact of GST determined through critical empirical evidence in this study. Also, the problems faced by the exporters allied to GST, which the authors could not include in the questionnaire due to certain reasons, are concisely apportioned and discussed.

Findings

The study depicts the major advantages of GST, such as harmonized system, long-run performance, reduction in logistics cost, check-post operation, bonds and ease of doing business. Also, it highlights the disadvantages of GST, such as biases in the indirect tax system, the reimbursement of duty drawback being late or pending and document filing was still a tedious job under the GST regime.

Originality/value

The unavailability of considerable literature on the impact of GST on Indian exports signifies the novelty of this research. So far, this is the first empirical attempt to measure the impact of GST on exports which is a unique and original attempt to highlight the problem that lies under the GST regime and the necessary reforms the tax structure needs in the context of Indian exports.

Details

Business Analyst Journal, vol. 43 no. 2
Type: Research Article
ISSN: 0973-211X

Keywords

Article
Publication date: 4 October 2022

Abdulla Al-Towfiq Hasan

The study aims to empirically test the effects of antecedents on behavioral intentions towards Uber-ridesharing services. The antecedents are perceived value (hedonic…

Abstract

Purpose

The study aims to empirically test the effects of antecedents on behavioral intentions towards Uber-ridesharing services. The antecedents are perceived value (hedonic, utilitarian, epistemic, and symbolic value), e-Attitude, and technology attachment (smartphone use, Internet use, and e-Involvement). Moreover, the study explores the mediating effect of three-dimensional perceived value (hedonic, utilitarian, and epistemic value) and e-Attitude; and the moderating effect of symbolic value on behavioral intentions towards Uber-ridesharing services.

Design/methodology/approach

A mixed survey (75% Google Form, 25% face to face) was conducted in Bangladesh to collect data from customers who had previously participated in Uber-ridesharing services, one of the largest ridesharing platforms in Bangladesh. Subsequently, data were analyzed based on the structural equation modeling technique using SmartPLS 3.3.3.

Findings

The study findings revealed that hedonic value, utilitarian value, epistemic value, symbolic value, e-Attitude, smartphone use, internet use, e-Involvement had a direct significant positive impact on behavioral intentions. Also, e-Attitude significantly impacted hedonic, utilitarian, and epistemic value. In addition, Smartphone use, internet use, and e-Involvement significantly influenced e-Attitude. Moreover, the study findings revealed that hedonic, utilitarian, and epistemic value partially mediates between e-Attitude and behavioral intentions; and e-Attitude partially mediates between Smartphone use, Internet use, and e-Involvement and hedonic, utilitarian, and epistemic value and behavioral intentions. Furthermore, the results indicate that epistemic value significantly moderates the relationship between hedonic, utilitarian, and epistemic value and behavioral intentions.

Practical implications

This study uncovers some insightful findings for ridesharing services providers and managers helping to build customers' positive behavioral intentions towards Uber-ridesharing services. In particular, practitioners can improve cost-efficiency, hedonic and symbolic aspects, availability of rides of Uber-ridesharing services. Moreover, the ridesharing services managers should adopt technology-based service opportunities.

Originality/value

The study enriches sharing economy literature, especially ridesharing services, exploring the direct effect of epistemic value, e-Attitude, smartphone use, Internet use, and e-Involvement on behavioral intentions. Moreover, this study presents smartphone use, Internet use, and e-Involvement as new antecedents of e-Attitude and behavioral intentions. Furthermore, the study explores the mediating effect of hedonic, utilitarian, and epistemic value and e-Attitude; and the moderating effect of symbolic value in Uber-ridesharing service perspective.

Details

Journal of Contemporary Marketing Science, vol. 5 no. 3
Type: Research Article
ISSN: 2516-7480

Keywords

Book part
Publication date: 10 August 2010

Gordon Burt

The Wikipedia (2008) entry for mathematical sociology cites four books with ‘mathematical sociology’ in the title: Coleman (1964), Fararo (1973), Leik and Meeker (1975)

Abstract

The Wikipedia (2008) entry for mathematical sociology cites four books with ‘mathematical sociology’ in the title: Coleman (1964), Fararo (1973), Leik and Meeker (1975) and Bonacich (2008). Fararo (1973, pp. 764–766) provides a guide to the literature in mathematical sociology covering journals, bibliographies, reviews and expository essays, readers, texts, original monographs and research papers. Many of the references are either broader than mathematical sociology, for example, concerning the behavioural sciences in general, or narrower, dealing with a particular topic within sociology, or concerning a related field such as social psychology. Three classical original monographs are identified: Dodd (1942), Zipf (1949) and Rashevsky (1951). Included in a second generation of monographs is Coleman's (1964)An Introduction to Mathematical Sociology’. Could it be that this is the first use of the phrase ‘mathematical sociology’?

Details

Conflict, Complexity and Mathematical Social Science
Type: Book
ISBN: 978-1-84950-973-2

Article
Publication date: 2 November 2021

Panayiota Lyssiotou and Elena Savva

An important concern of economic policy analysis is how income taxes affect labor supply since this is crucial in assessing the efficiency costs of taxation and designing…

Abstract

Purpose

An important concern of economic policy analysis is how income taxes affect labor supply since this is crucial in assessing the efficiency costs of taxation and designing labor income taxation. The focus in the literature has been mostly to study the responses of high earners and women. The authors contribute to this literature by focusing more on how middle earners respond to financial incentives and whether the responses are different between men and women.

Design/methodology/approach

The authors exploit substantial expansions in the level of individual income exempt from taxation and taxed at a lower marginal tax rate while the schedule of marginal tax rates remained the same. The authors adopt an empirical framework that is similar to Bosch and van der Klaauw (2012) and condition on the effects of other factors, such as inflows of foreign workers that may have affected the wages, participation and working hours of native males and females. The authors also conduct various sensitivity analyses to examine the robustness of the estimates.

Findings

The authors find robust evidence that the tax reforms increased the wages of medium and high educated married males and females significantly. They also had a positive impact on work participation that was more substantial for married women, especially the medium educated. The authors estimate significant positive own wage labor supply elasticities that are small and about the same for men and women when the authors condition on the labor outcome effects of inflows of EU and non-EU foreign workers, which changed the skill distribution of the economy and had a more significant impact on female labor outcomes. Smaller wage labor supply elasticities indicate lower disincentive effects and deadweight losses from the imposition of taxes and have implications on the design of optimal taxation of men and women.

Originality/value

Previous investigations of the labor supply responses of both men and women to a given policy change have been identified mostly by exploiting changes in joint income taxation and marginal tax rates. The authors exploit substantial expansions in the level of individual income exempt from taxation and taxed at a lower marginal tax rate while the schedule of marginal tax rates remained the same. The income effects of these reforms could be limited since the reduced marginal tax rates apply to only part of the income.

Details

Journal of Economic Studies, vol. 49 no. 7
Type: Research Article
ISSN: 0144-3585

Keywords

Article
Publication date: 1 April 2021

Selim Aren, Hatice Nayman Hamamci and Safvan Özcan

The aim of this study, the moderating effect of pleasure-seeking and loss aversion, was investigated in relation to the big five personality traits with regard to risky…

Abstract

Purpose

The aim of this study, the moderating effect of pleasure-seeking and loss aversion, was investigated in relation to the big five personality traits with regard to risky investment intentions.

Design/methodology/approach

In the study, the data was obtained between January and November 2019 via an online survey with convenience sampling. The total number of subjects is 886. The authors used IBM SPSS Statistics for analysis. Exploratory factor analysis, correlation analysis, regression analysis and discriminant analysis were performed.

Findings

Significant relationships were found between five personality traits and risky investment intentions. In these relationships, the moderator effect of pleasure-seeking for extraversion, conscientiousness and neuroticism personality traits was also determined. Besides, investment preferences for choosing “unknown and new investment” against “known and experienced investment”, which is a typical feature of the balloon periods, were modeled with big five personality traits and motivation variables (pleasure-seeking and loss aversion) and the equation was formed. As a result, high accuracy classification success was obtained.

Originality/value

The study is unique owing to its findings. In addition, general risk aversion and risky investment intention were investigated simultaneously to explain the different findings in the literature regarding the attitude of big five personality traits to risk and personality traits that show consistent approach were identified.

Details

Kybernetes, vol. 50 no. 12
Type: Research Article
ISSN: 0368-492X

Keywords

Article
Publication date: 3 June 2021

Liping Ding, Jiangshan Li, Yuqing Wang, Jing Shuai and Xinxin Xu

Under the pressure of environment degradation and energy consumption rises, solar photovoltaic power generation (SPPG) has been seen as a strategic emerging industry in…

Abstract

Purpose

Under the pressure of environment degradation and energy consumption rises, solar photovoltaic power generation (SPPG) has been seen as a strategic emerging industry in China. However, the SPPG projects have many uncertain factors in the process of the life cycle. The purpose of this paper is to evaluate the investment risk comprehensively.

Design/methodology/approach

Specifically, this paper firstly identified the risk factors and consequences of SPPG project investment and constructed the investment risk factor evaluation index system. Secondly, the factor analysis method was used to reveal the key investment risk factors and risk consequences. Then, the research hypotheses and conceptual model were proposed, and the empirical analysis was conducted based on the structural equation model (SEM).

Findings

The results showed that the six key risk factors (political, economic, technological, management, market and natural) have a significant impact on the risks during the whole period. The influence degree of risk factors in the operational period is such that market factor > political factor > economic factor > management factor > natural factor > technical factor. In addition, the risk of constructional period has a significant impact during the risk of operational period. Except for natural factors, all risk factors are correlated among the mutual influence relationship of risk factors. Finally, this paper puts forward management implications based on the above conclusions: effectively identify investment risk factors and comprehensively improve risk management ability; (refine the risk factors of SPPG project investment and develop targeted risk prevention and control strategies; define risk management objectives and make relevant strategic plans.

Research limitations/implications

Because of the chosen research approach, the research results may lack generalisability. Therefore, researchers are encouraged to test the proposed propositions further.

Practical implications

It can also help stakeholders propose risk prevention strategies throughout the entire process, to promote the sustainable development of SPPG projects.

Originality/value

This study focuses on the investment risk of SPPG projects, by building an evaluation index system to identify key risk factors, and then establishes a SEM covering constructional period risks and operational period risks to better explore SPPG project risks, in an effort to reveal the mutual influence relationship and influence path of investment risk factors of the projects.

Details

International Journal of Energy Sector Management, vol. 15 no. 5
Type: Research Article
ISSN: 1750-6220

Keywords

1 – 10 of 84