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Rebar corrosion in reinforced concrete is the major reason for the durability degradation, especially under harsh environment. This paper presents an experiment conducted to investigate the influence of freeze-thaw cycles on the rebar corrosion in reinforced concrete. The purpose of this paper is to provide fundamental information about rebar corrosion under frost environment and improvement measures.

The related elastic modulus and compressive strength of different concrete specimens were measured after different freeze-thaw cycles. The accelerated rebar corrosion test was carried out after different freeze-thaw cycles; additionally, the value of calomel half-cell potential was determined. The actual rebar corrosion appearance was checked to prove the accuracy of the results of calomel half-cell potential.

The results show that frost damage aggravates the rebar corrosion rate and degree under freeze-thaw environment; furthermore, the results become more obvious with the freeze-thaw cycles increasing. Mixing the air-entrained agent into fresh concrete to prepare air-entrained concrete, increasing the cover thickness and processing the surface of concrete with a waterproofing agent can significantly improve the resistance to rebar corrosion. From the actual appearance of rebar corrosion, the results of calomel half-cell potential can well reflect the actual rebar corrosion in reinforced concrete.

The durability of reinforced concrete is mainly determined on chloride penetration that brings about rebar corrosion in chloride environments. Furthermore, the degradation of concrete durability becomes more serious in the harsh environment. As the concrete exposure to the freeze-thaw cycles environment, the freeze-thaw cycles accelerate the concrete damage, and the penetration of chloride into the concrete becomes easier because of the growing pore and crack sizes. In addition, rebar corrosion caused by chloride is one of the major forms of environmental attack on reinforced concrete. The tests conducted in this paper will describe the rebar corrosion in reinforced concrete under freeze-thaw environment.

There is significant amount of literature tackling different issues related to the port industry. The present chapter focuses on a single business unit of seaports aiming at the documentation of works related to container terminals.

An effort to review, collect and present the majority of the works present in the last 30 years, between 1980 and 2010, has been made in order to picture the problems dealt and methods used by the authors in the specific research field. To facilitate the reader, studies have been grouped under five categories of addressed problems (productivity and competitiveness, yard and equipment utilization, equipment scheduling, berth planning, loading/unloading) and four modelling methodologies (mathematics and operations research, management and economics, simulation, stochastic modelling).

The analysis shows that most works focus on productivity and competitiveness issues followed by yard and equipment utilisation and equipment scheduling. In reference to the methodologies used managerial and economic approaches lead, followed by mathematics and operations research.

In reference to future research, two fields have been identified where there is scope of significant contribution by the academic community: container terminal security and container terminal supply chain integration.

The present chapter provides the framework for researchers in the field of port container terminals to picture the so far works in this research area and enables the identification of gaps at both research question and methodology level for further research.

This study aims to investigate the effects of firm- and governance-specific characteristics on digital trust (DT) and firm value. Firm-specific factors include return on assets (ROA), market-to-book ratio (M/B ratio), size and leverage, whilst governance-related factors comprise board size, percentage of female board members, board independence and institutional ownership. All listed US firms over the period of 2011–2016 were analysed in this study.

This study provides a novel method to empirically measure DT by combining multiple variables to create a combined DT score. The variables include security and privacy scores, security rankings and data breaches, amongst others. Subsequently, a linear regression was performed to evaluate the effect of firm- and governance-specific characteristics on DT, as well as the effect of DT on firm value.

By using signalling theory, this study finds significant evidence that a firm’s profitability (ROA) decreases whilst its size increases DT. This could be due to the fact that firms with lower DT monetise data more actively, decrease DT and increase short-term profitability. Significant evidence also shows that increasing DT leads to an increase in firm value.

Although numerous studies have been conducted on developing customers’ trust by incorporating corporate social responsibility to improve firm value, the literature remains still on its digital analogue. Therefore, this study extends the knowledge of corporate digital responsibility (CDR) by providing a novel method for calculating DT across industries as an antecedent of CDR. Specifically, it sheds light on how firms can enhance DT by utilising firm- and governance-level factors. This enhanced DT can subsequently increase firm value. The study provides important managerial implications by providing empirical evidence that cybersecurity investments increase firm value. This value increase is related to the rise in shareholder value amongst investors and the increase in the organisation’s consumer perceptions as the latter’s interests are better managed.

Group criticism plays an important role in intergroup relations and conflicts, but few studies have related group criticism to intercultural communication contexts. This study aims to explore two cultural groups’ (Chinese international students in the USA and American domestic students) collective face concern as a unique experience in intercultural communication and other psychological responses while encountering group criticism targeting their country image.

A laboratory experiment was conducted assessing Chinese international students (n = 115) and American domestic students’ (n = 100) responses to a research-confederate critic (whose group membership was manipulated) criticizing participants’ country image such as blaming China and the USA for air pollution or using drugs in the Olympics. analysis of covariance, correlational analysis and regression analysis were adopted to analyze the data.

Chinese international students reported higher collective face concerns and lower liking toward the critic compared with American students. When criticism specifically targeted participants’ country image, Chinese international students reported more discomfort feelings than American students; and while responding to the critic who identified as participants’ ingroup member, Chinese international students’ discomfort feelings were more susceptible to their collective face than American students in the same condition.

This study illustrates cultural differences in collective face concerns and psychological reactions in responding to criticism targeting a country image in intercultural communication contexts.

This study seeks to understand Trump supporters’ behaviors on social media in the wake of a political controversy: US President Trump’s continued support for Judge Roy Moore’s candidacy for the US Senate representing the state of Alabama despite several allegations of sexual assault against him.

Few days before the special election was held in Alabama, an online survey was conducted among 325 supporters of President Trump to explore Trump supporters’ social media behaviors, including the unfriending/unfollowing contacts and speaking out about the controversy.

We found a negative presidential image to influence individuals’ loss of face, and such loss of face to impact unfriending/unfollowing behaviors on social media, as well as outspokenness. Furthermore, the differences between strong issue supporters and weak issue supporters’ opinions of climate perceptions and outspokenness were investigated.

Rather than using fear of isolation as the mediator between opinion climate and willingness to speak out, as is generally the case in the spiral of silence model (Moy et al., 2001), this study investigated the role of another affective indicator, loss of face on two social media behaviors, outspokenness, and unfollowing/unfriending contacts on social media.

In prior literature, online endorsement system allowing the users to “like” or “dislike” shared information is found very useful in information filtering and trust elicitation in most social networks. This paper shows that such systems could fail in the context of investment communities due to several psychological biases.

This study develops a series of regression analyses to model the “like”/“dislike” voting process and whether or not such endorsement distinguishes between valuable information and noise. Trading simulations are also used to validate the practical implications of the findings.

The main findings of this research are twofold: (1) in the context of investment communities, online endorsement system fails to signify value-relevant information and (2) bullish information and “wisdom over the past event” information receive more “likes” and fewer “dislikes” on average, but they underperform in stock market price discovery.

This study demonstrates that biased endorsement may lead to the failure of the online endorsement system as information gatekeeper in investment communities. Two underlying mechanisms are proposed and tested. This study opens up new research opportunities to investigate the causes of biased endorsement in online environment and motivates the development of alternative information filtering systems.

Highlights the importance of education and training for women as an integral part of local and national development. Using Nicaragua as a leading example, outlining the recent history of the country in order to explain its particular approach to education. Presents the organizational model of multiplication of learning, the philosophical model of participative learning and the communication model of accessibility of learning materails. Concludes that through such education, women in Nicaragua reflect a high level of political awareness, defining issues and implementing creative solutions with a courage which should be envied by others.

This paper aims to explore the relationships between self-construals, religious identification, and conflict styles in India.

Data were gathered in India (n=1,108) among Hindus (n=744) and Muslims (n=364) in various organizations throughout India. Conflict styles were measured using Oetzel's conflict style measure. Self-construal was measured using Singelis' self-construal measure. Pearson correlations and multiple regressions were conducted.

Correlation analysis showed significant negative correlation between the independent and interdependent self-construal. Multiple hierarchical regression modeling demonstrated significant interactions between religious identification, self-construal, and conflict style. Hindus are more likely to dominate in conflict situations, while Muslims are more likely to avoid conflict and prefer more group-oriented conflict styles.

Self-report measure is a possible limitation and the sample is religiously homogeneous.

The results of this study could assist community organizers and others who work in conflict mediation resolve conflict among religious groups.

Few studies have examined conflict styles in India and this study employs a macro and micro-level approach to the study of conflict.

This paper aims to present a novel fault estimator design scheme, in order to improve the practicability of the fault estimation.

The paper first transforms the system state into three parts. Then a reduced‐observer is designed for an unknown input and fault‐free system, and the observer can get no bias error in the state estimation. So the estimator can get the exact estimation for the unknown input and fault of the actuator.

By using this approach it is found that the condition of the estimator is weaker than other observers. It is a qualified and simple and straightforward approach to be applied in wide domains.

It should be noted that the sensors should be perfectly reliable. The maximum number of disturbances which can be decoupled cannot be larger than the number of independent actuators.

It is a very useful approach to solve the problem that the actuator is contaminated by disturbances.

The paper uses a transformation to divide the state into three parts. By estimating the part that is not affected by the disturbance and fault, it gets the exact estimation for the unknown input and fault of the actuator. The design condition of the reduced‐order observer which is proposed is weaker than others.