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The development of high-strength engineered cementitious composite (ECC) gains a significant leap in structural engineering. Engineers have been looking for new formulations that combine outstanding compressive strength with increased flexural resistance. This research focuses on the main characteristics, techniques and prospective applications of high-strength ECC. The proposed work explores the composition of such concrete, emphasizing the use of novel additives, fiber reinforcements and optimal particle packing to produce excellent mechanical characteristics and demonstrating how high-strength ECC contributes to incorporate sustainability by potentially lowering the need for supplemental reinforcing and resulting in a lower environmental effect.

This research involves on studying the composition of high-strength ECC and geopolymer-based ECC, the use of novel additives, fiber reinforcements and optimal particle packing. It examines the capacity of high-strength ECC to sustain high loads with an allowable deformation without any catastrophic collapse. It discusses the sustainability aspects of high-strength ECC and its potential alternative as geopolymer-based ECC.

High-strength ECC offers an excellent compressive strength while also providing increased flexural capacity. Employment of copper slag (CS) as a filler material for the production of ECC results in 28.92% lower cost, when compared to the mix developed using conventional river sand. Whereas in the case of geopolymer-based ECC, the cost of production was found to be 31.92% lower than that of the conventional.

High-strength ECC is developed using conventional river sand and industrial by-product, CS as a filler material. The combination of achieving higher compressive strength with an increased use of industrial by-products leads to the development of sustainable high strength ECC. The potential use of high-strength ECC reduces the need for supplementary reinforcing and increases the structural lifetime, resulting in a lower environmental impact.

Why is Tandem Computers, a $1 billion a year computer firm, buying a minority equity interest in a company with less than 50 employees? Why is Eastman Kodak, with more than $12 billion in sales and spending over $1 billion on R&D, buying an 18 percent stake in a company with 35 employees? Why is DuPont, a $29 billion a year firm, also spending more than $1 billion a year on R&D, collaborating with a company with just 14 employees? Why is Pfizer investing $2.9 million in a company with less than 75 employees? None of these investments is expected to significantly boost these blue chip corporations' earnings per share in the near future, and the firms' managements are fully aware of the risks of getting involved with businesses they don't have time to run. When a mega‐giant firm invests in a tiny start‐up company, it's obviously prospecting for hot intellectual property and not just earnings growth.

A study was conducted to find out the types of CD products in Nigerian libraries and information centres, and the uses to which they are being put. The study also tried to find out the sources of funding of such products, information about users, hardware configuration, and training facilities available in the country. Of the 157 questionnaires sent out, 85 usable returns (a 54% response rate) were received. The analysis revealed that 44 libraries had at least one PC with only nine of such centres having at least one CDROM workstation. There are 62 copies of 43 CD titles in Nigeria. Information on the discs is classified as bibliographic, full text, statistical, or general information. The subjects they cover in descending numeric order are agriculture, general reference, medicine, science and technology, social sciences, and education. Areas of applications include information retrieval, bibliographic compilations, current awareness services, library acquisition work, and downloading and uploading to local online databases. In general, CD use was minimal in most libraries as opposed to information centres where CD applications were well used by patrons, especially where the mass media was employed to advertise them. Most libraries funded their CD projects with their local budgets. The most frequently used computers are IBM or compatibles. Recommendations are also outlined.

Purpose: To demonstrate how an online coaching intervention can support well-being management (mental health and mood) of medical students, by increasing psychological awareness, emotional management, and healthy/positive action repertoires.

Design/methodology/approach: A two-group randomized control trial design using a waitlist as a control was used with a sample of 176 medical students. Half were randomly assigned the 5P© coaching intervention and the remaining half assigned to the waitlist group, scheduled to receive the intervention after the initial treatment group completed the intervention. Participant baseline data on stress, anxiety, depression, positive and negative affect, and psychological capital were obtained prior to commencing the study, after completion of the first treatment group, and again postintervention of the waitlisted group, and then at the end of the year.

Findings: Coaching the students to reflect on their emotions and make solution-focused choices to manage known stresses of medical education was shown to decrease medical student stress, anxiety, and depression, thereby increasing the mental health profiles of medical students.

Research limitations/implications: The findings suggest that an online coaching tool that increases psychological awareness and positive action can have a positive effect on mental health and mood of medical students.

Practical implications: The framework developed and tested in this study is a useful tool for medical schools to assist medical students in managing their well-being, thereby decreasing the incidence and prevalence of mental illness in medical students. The implications of this research are significant in that positively affecting the psychological well-being of medical students could have a significant effect not only on each medical student but also on every patient that they treat, and society as a whole. Better mental health in medical students has the potential to decrease dropout rates, increase empathy and professionalism, and allow for better patient care.

Originality/value: This study contributes to the literature on online coaching for improved psychological well-being and emotional regulation, mental health, and medical students. It is one of the first studies using a coaching protocol to make a positive change to the known stress, anxiety, and depression experienced by medical students worldwide.

This article aims to present a model linking loyalty intention, brand commitment, brand credibility and brand awareness. The model shows the mediating role of brand commitment and brand credibility on loyalty intention. The researchers also investigated the changes in the given model under high and low involvement conditions, explicitly considering involvement as between-subject differences rather than between-product differences. The change in customer loyalty intention under varying levels of product involvement is a highly debated topic among researchers.

The model was tested on a sample of 318 executives who have bought and are using deodorants. The respondents had given responses for loyalty intentions, brand commitment, brand credibility, brand awareness and involvement towards the brand of deodorant that they use. Confirmatory factor analysis was used to validate the tool for measurement of constructs and multi-group structural equation modelling for testing the hypotheses and comparing the nested models.

The difference between high and low involvement groups in the given model supports the hierarchy-of-effects view. We found that attitude precedes behaviour for highly involved individuals but followed a different hierarchy among the individuals with low involvement.

This research investigates the proposed model for a single product category and so the scope of generalisability is limited to the product selected. This research has considered behavioural intention rather than the behaviour in this study.

The study demonstrates the differences in the hierarchy-of-effects among low/high involvement groups. Thus, the findings will have an impact on the approach of practitioners, as different strategies will have to be adopted for the enhancement of loyalty intentions based on the difference in perceived involvement of consumers.

This paper shows the need to differently target consumers with different levels of perceived involvement, within the same product class and thus between-subject involvement can be used as a segmentation variable.

This paper aims to explore member readiness for change in manufacturing industry.

The authors interviewed 14 upper management professionals in Northeast US state companies. Inductive analysis and creative synthesis were used for identifying important patterns, themes and relationships pertaining to external and internal factors influencing employee attitudes related to change processes.

The findings suggest relationship between process change and member readiness for change. Leadership and communication channels play a significant role in determining how members adapt and respond to organizational process changes. Companies can achieve desirable outcomes when members trust organizational leadership and perceive management as fair and transparent.

Currently, there is little known about the relationship between process change and member readiness for change in manufacturing industry. The study advances the theoretical literature and provides practical information for manufacturing professionals.

“When James Boswell returned from a tour of Corsica in 1765 he wrote: ‘It is indeed amazing that an island so considerable, and in which such noble things have been doing, should be so imperfectly known.’ The same might be said today of Puerto Rico.” Thus began Millard Hansen and Henry Wells in the foreword to their 1953 look at Puerto Rico's democratic development. Four decades later, the same could again be said about the island.

We contend that the concept of liability of foreignness is inadequate to describe the set of disadvantages faced by emerging economy multinational enterprises (MNEs) in international markets. In order to address this theoretical gap, we develop the concept of “liabilities of origin” (LOR). We propose that the concept of LOR explains how the national origins of the MNE shape its disadvantages in international markets through three distinctive contexts of the MNE's ongoing activity: the home country context, the host country context, and the organizational context. We argue that in order to understand how emerging economy MNEs overcome their LOR, we need to engage simultaneously with the theoretical perspectives provided by the institutional entrepreneurship and organizational identity literatures. We suggest, further, that the concept of LOR may be useful to understand the character of MNE disadvantage in any international foray where the national origins of the MNE engender legitimacy-based and capability-based disadvantages for the MNE in a host country.

The purpose of this paper is to focus on productivity as it unfolds during the execution of a particular task, i.e., reinforced concrete operations. The main aim is understanding whether the learning effect explaining the improvement of productivity in subsequent cycles of a given repetitive construction process is mainly attributable to a pure worker learning (independent on the specific site) or to the experience developed by the crew on the site conditions.

The authors conduct a research that empirically investigates and compares the change in productivity data of a single worker during his/her working life and that of a crew involved in specific repetitive work, such as the concreting activities of a multi-storey building.

The findings suggest differentiating between productivity gain as a result of the learning effect of the individual worker throughout his/her working life (which is independent of the specific project and site) and that of a crew composed by more workers which repeat reinforced concrete operations in a given specific project.

Despite the great attention reserved to learning in construction, few researchers discuss on the real applicability of the learning curve (LC) theory in the construction industry. The authors contribute to this literature by empirically investigating the contributions that the learning effect of the individual worker and that of a crew repeating a given task (i.e. reinforced concrete operations) in a given project have on the productivity improvement for subsequent cycles of the repetitive construction process.

The findings of this study have important managerial implications. The shape of the LC of the individual worker implies that learning increases relatively slowly in his/her working life (particularly after one to two years), while the effects of the crew experience are immediately significant in a time range of few weeks. This means that a single “one-off” multi-storey building project will show in the first storey the “historical,” individual productivity of the individual workers (i.e. not going to vary significantly in the next few weeks). The productivity improvement in the further storeys will only depend on the project-specific (and collective, for the crew) “learning” due, for example, to better coordination or to other issues that are progressively solved moving from the first storey to the following ones. So, the project-specific LC increases in a faster way than the individual one, and the overall productivity can be improved by accelerating the project-specific learning rate with more accurate project-specific design and management.

This paper enhances the understanding of the contributions that the learning effect of the individual worker and that of a crew repeating a given task (i.e. reinforced concrete operations) in a given project have on the productivity improvement for subsequent cycles of the repetitive construction process. This will contribute to improve the planning and control of site work activities, avoiding time and money wastefulness.