Information technology and road transport industry: how does IT affect the lorry driver?

A quasi-experimental design was used to study the effect of on board computer-systems (OBC-systems) on the Dutch lorry drivers' psychosocial work environment (i.e., control and demands) and coinciding mental health (i.e., need for recovery after work) and job attitudes (i.e., organisational commitment). The intervention group (n = 26) started working with an OBC-system between 1998 and 2000 and was compared with two matched reference groups (n = 26 in both groups). All participants were from a cohort of 650 drivers who participated in a prospective study on occupational stress and health. All outcome variables were quantified by standardised and validated questionnaires. Results showed that the application of OBC-systems negatively affected the drivers' job control and organisational commitment. However, OBC-systems did not influence the drivers' psychological job demands and need for recovery after work. Accordingly, it is concluded that the application of OBC-systems negatively affects the lorry driver's psychosocial work environment and job attitudes.     

Is beautiful really usable? Toward understanding the relation between usability,aesthetics, and affect in HCI

This paper analyzes the relation between usability and aesthetics. In a laboratory study, 80 participants used one of four different versions of the same online shop, differing in interface-aesthetics (low vs. high) and interface-usability (low vs. high). Participants had to find specific items and rate the shop before and after usage on perceived aesthetics and perceived usability, which were assessed using four validated instruments. Results show that aesthetics does not affect perceived usability. In contrast, usability has an effect on post-use perceived aesthetics. Our findings show that the “what is beautiful is usable” notion, which assumes that aesthetics enhances the perception of usability can be reversed under certain conditions (here: strong usability manipulation combined with a medium to large aesthetics manipulation). Furthermore, our results indicate that the user’s affective experience with the usability of the shop might serve as a mediator variable within the aesthetics–usability relation: The frustration of poor usability lowers ratings on perceived aesthetics. The significance of the results is discussed in context of the existing research on the relation between aesthetics and usability.     

Does social capital affect SNS usage? A look at the roles of subjective well-being and social identity

This study views social capital as a precursor of SNS (Social Network Service) use, which departs from the previous thoughts that considered social capital as the outcome of SNS activities. Drawing upon the theoretical premises regarding network-based social capital, this study examines the roles of subjective well-being and social identity in terms of their moderating as well as mediating influences on SNS use. This study sought to sub-categorize social capital and SNS use with a view to providing more refined theoretical and practical implications. The study’s main objectives are three-fold: First, the study verifies whether social capital, categorized into bridging and bonding capital, influences one’s SNS use as measured by qualitative use and quantitative use. Second, the study aims to confirm whether subjective well-being mediates between social capital and SNS use. Third, it examines whether social identity moderates the relationship between social capital and SNS use.The study result indicates that bridging capital only had a significant impact on qualitative use. However, subjective well-being did not mediate the relationship between social capital and SNS use. Finally, the cognitive identity caused significant difference in the effect of social capital on quantitative SNS use, whereas cognitive and affective identities caused significant differences in regards to the effects of bridging capital on qualitative SNS use.     

Does the uncanny valley exist? An empirical test of the relationship between eeriness and the human likeness of digitally created faces

The uncanny valley theory (UVT) (Mori, 1970) proposes that when stimuli are defined by a near-perfect resemblance to humans they cause people to experience greater negative affect relative to when they have perfect human likeness (HL) or little to no HL. Empirical research to support this non-linear relationship between negative affect and HL has been inconclusive, however, and a satisfactory causal explanation has not yet emerged to explain existing findings. In two studies, we examined the relationship between HL and eeriness using digital human faces. First, we examined the relationship between HL and eeriness while controlling for extraneous variation in stimulus appearance. We created two HL continua by manipulating the facial proportions and polygon count of several digital human models. Second, we proposed and tested two causal hypotheses regarding the uncanny valley phenomenon that we refer to as category conflict and feature atypicality. We created two additional HL continua by manipulating the skin coloration and category membership of models. Across these continua we introduced an atypical feature. Our results suggest that HL is linearly related to emotional response, except under conditions where HL varies by category membership, suggesting that previous empirical findings might be explained as a category conflict.     

Does prolonged sitting with limited legroom affect the flexibility of a healthy subject and their perception of discomfort?

This study examined for differences in subjective ratings of discomfort and comfort (Numerical Rating Scale) and objective measures of hamstring (Sit-Reach test), lumbar (Schöber’s test) and neck (Cervical Range of Motion) flexibility in healthy young subjects (n = 24) following 4 h of sitting on stacking chairs with or without limited legroom.When comparing the limited and unlimited legroom groups for differences in subjective and objective measures over 4 h, no significant findings were seen at the 5% level of confidence. However, differences in buttock, neck, shoulder and average discomfort were significantly negatively correlated to differences between post-warm up Sit-Reach scores (Correlation Co-efficients: −.763, −.434, −.408, and −.445; p values of .004, .034, .048, and .029, respectively). The difference in buttock discomfort was significantly negatively correlated to the difference between pre-warm up Sit-Reach scores (Correlation Coefficient: −.750; p = 0.005), post-sitting/pre-warm up and pre-sitting/post-warm up Sit-Reach scores (Correlation Coefficient: −.756; p = 0.004), and Schöber’s tests (Correlation Coefficient: −.578; p = 0.049).Although the above results suggest a relationship between a loss in flexibility and an increase in discomfort, the mechanism influencing this relationship is not clear from this study. What does appear clear is that the limiting of legroom to the parameters used in this study does not seem to exacerbate change in flexibility and discomfort which are a consequence of prolonged sitting.

Relevance to industry

Many forms of public transport provide limited legroom for their passengers, which may have an adverse affect on the user’s flexibility or experience of discomfort. Determining which objectively measurable parameters are associated with the subjective level of discomfort during sitting should allow for a greater appreciation of the changes that underpin such subjective perceptions.     

Does load position affect gait and subjective responses of females during load carriage?

Recreational hikers carry heavy loads while often walking long distances over uneven terrain. Previous studies have suggested that not only the load mass but also the position of the load may influence load carriage. The purpose of this study was to determine the effect of vertical load position on gait and subjective responses of female recreational hikers. Fifteen experienced female hikers walked for 2 km over a simulated hiking trail carrying 30% BW in three vertical load positions (high, medium and low). Lower limb and trunk kinematic, electromyography (EMG) and ground reaction force (GRF) data were collected together with heart rate (HR), ratings of perceived exertion (RPE) and discomfort measures. Although HR, RPE and discomfort measures were not able to discern statistical differences between load positions, the high load position was the most preferred by participants. The high load position also resulted in a more upright posture (p < 0.001), decreased gastrocnemius integrated EMG compared to the medium (p = 0.005) and low load positions (p = 0.02) and a higher first peak deceleration vertical GRF compared to the low load position (p = 0.011). However, the absolute differences were small and unlikely to be functionally relevant in load carriage studies. Based on the findings of this study, a high, medium or low load position cannot be preferentially recommended for healthy, experienced, female hikers carrying 30% BW.     

Does non‐destructive earthquake experience affect risk perception and motivate preparedness?

There are thousands of earthquakes every year, but most of them are small and are not disasters. This study explored whether non‐destructive earthquake experience affects public risk perception and motivates preparedness. The study respondents were from the Jiaodong Peninsula, China, where more than 20 small earthquakes have occurred during the past decade. The results show that non‐destructive earthquake experience positively affected public perception of the probability of an earthquake but not the perception of consequences. The relationship between non‐destructive earthquake experience and preparedness intention was not statistically significant. In addition, this study revealed that the perception of consequences was a positive predictor of earthquake preparedness intention, that is people with higher levels of perceived consequences of an earthquake were more likely to be motivated to prepare. However, non‐destructive earthquake experience moderated this relationship, that is weakened the strength of this relationship between perceived consequences and skill preparedness intention. These findings permit the identification of potential pathways to increase levels of disaster preparedness and potential barriers to enhancing disaster resilience in regions experiencing small hazards.     

A note on the relationship between market efficiency and adaptability – New evidence from artificial stock markets

We developed various artificial stock markets populated with different numbers of traders using a special adaptive form of the Strongly Typed Genetic Programming (STGP)-based learning algorithm. We then applied the STGP technique to historical data from three indices – the FTSE 100, S&P 500, and Russell 3000 – to investigate the formation of stock market dynamics and market efficiency. We used several econometric techniques to investigate the emergent properties of the stock markets. We have found that the introduction of increased heterogeneity and greater genetic diversity leads to higher market efficiency in terms of the Efficient Market Hypothesis (EMH), demonstrating that market efficiency does not necessarily correlate with rationality assumptions. We have also found that stock market dynamics and nonlinearity are better explained by the evolutionary process associated with the Adaptive Market Hypothesis (AMH), because different trader populations behave as an efficient adaptive system evolving over time. Hence, market efficiency exists simultaneously with the need for adaptive flexibility. Our empirical results, generated by a reduced number of boundedly rational traders in six of the stock markets, for each of the three financial instruments do not support the allocational efficiency of markets, indicating the possible need for governmental or regulatory intervention in stock markets in some circumstances.     

Perceived fit between green IS and green SCM: Does it matter?

From a task-technology fit perspective, green SCM and green IS are likely to have synergistic effects on corporate sustainability. Yet, the exact mechanisms through which their perceived alignment by employees may exert influences on organizational performances are unclear. This study captures potential enablement and coverage routes at different development stages of sustainability with fit-as-mediation and fit-as-moderation, respectively. The results based on the observations collected from more than 400 organizations in the USA and China suggest that the perceived fit gradually shifts from a moderator role to a mediator role as the two green endeavors integrate with each other.     

Does privacy breach affect firm performance? An analysis incorporating event-induced changes and event clustering

Previous studies have analyzed the impact of cybersecurity breaches on firm performance, but the impact of the privacy breach on firm performance is less explored. Needless to say, the privacy of the individual's personal information has been a rising concern for organizations over the years. Previous studies, primarily focused on cybersecurity breaches, have used a simple market model (MM) to observe the impact of these breaches on firm performance. Our study has used an advanced market model (AMM), which observes the event-induced changes in the variance of stock returns and changes in MM parameters, which are ignored by the MM. The ignorance of this may lead to a biased cumulative abnormal return (CAR) computation. We have also included the event clustering observation (events that are very close to each other) in our study and evaluated AMM with seemingly unrelated regression (SUR), i.e., AMM-SUR. We have used data of 193 privacy breaches related to the US firms listed on NYSE (USA), NASDAQ (USA) for the years 2012 (43 breaches), 2013 (37 breaches), 2014 (51 breaches), and 2018 (62 breaches). Abnormal returns for the firms are found negative due to these privacy breaches, but AMM consistently reports more negative abnormal returns than MM for all the years. The AMM-SUR, observing event clustering, consistently reports slightly lower negative abnormal returns than the AMM for all the years. We have also calculated the average financial loss due to a privacy breach for these years and for three different models, i.e., MM, AMM, and AMM-SUR.     

Does the internet level the playing field? Gender and on-line car quotes

This study investigated whether the Internet reduced gender bias in U.S. car price quotes. Previous research has shown that when buying identical cars, women were often quoted significantly higher prices than their male counterparts in traditional on-site transactions. A sample of 114 California car dealership websites was used to examine if gender bias persisted in the online sales channels. Price quotes were requested online by one male and one female persona whose demographic profiles differed only by gender. While no statistically significant difference in the price offered to the male and female was found, the female persona received more price quotes, and a lower average price than the male. These results suggest that when females are in the car buying market, utilizing the Internet can result in more equitable pricing. This not only informs e-commerce pricing and theory development, but consumers and industry representatives interested in internet sales.     

Exploring the positive side of personal internet use at work: Does it help in managing the border between work and nonwork?

Many employees use the internet at work for personal reasons, and it has been suggested that this behavior can be understood as an attempt to manage the border between work and nonwork. Using data from 190 office workers, the study aims to test how well work/family border theory can explain personal internet use. The results only partly support work/family border theory, as only the amount of private demands and identification with work at work were significant predictors of personal internet use (which was found to be unrelated to work–nonwork balance). These findings suggest that work/family border theory offers only a limited perspective for the explanation of why people use the internet at work for personal business.     

Does the level of detail of UML diagrams affect the maintainability of source code?: a family of experiments

Although the UML is considered to be the de facto standard notation with which to model software, there is still resistance to model-based development. UML modeling is perceived to be expensive and not necessarily cost-effective. It is therefore important to collect empirical evidence concerning the conditions under which the use of UML makes a practical difference. The focus of this paper is to investigate whether and how the Level of Detail (LoD) of UML diagrams impacts on the performance of maintenance tasks in a model-centric approach. A family of experiments consisting of one controlled experiment and three replications has therefore been carried out with 81 students with different abilities and levels of experience from 3 countries (The Netherlands, Spain, and Italy). The analysis of the results of the experiments indicates that there is no strong statistical evidence as to the influence of different LoDs. The analysis suggests a slight tendency toward better results when using low LoD UML diagrams, especially if used for the modification of the source code, while a high LoD would appear to be helpful in understanding the system. The participants in our study also favored low LoD diagrams because they were perceived as easier to read. Although the participants expressed a preference for low LoD diagrams, no statistically significant conclusions can be drawn from the set of experiments. One important finding attained from this family of experiments was that the participants minimized or avoided the use of UML diagrams, regardless of their LoD. This effect was probably the result of using small software systems from well-known domains as experimental materials.     

Who assigns the most ICT activities? Examining the relationship between teacher and student usage

The expansion of information and communication technology (ICT) infrastructure in schools is expected to promote learning. To what extent teachers are utilizing the new ICT tools to engage students in learning activities remains a question. This study reports what kind of activities teachers are likely to assign students, and what type of teachers are more likely to assign such activities. Teacher ICT usage and student ICT assignments are examined using a sample of 3729 elementary and junior high school teachers in Taiwan. The results from correlation and regression analysis indicate that teachers who infrequently use basic ICT tools such as word processing rarely assign student ICT activities. At the other end of spectrum, teachers who create complicated multimedia materials are most likely to assign student multimedia activities. Regression results show that teachers’ frequency of building websites is the best predictor for assigning ICT-based sharing activities to students, though the likelihood is greater for junior high school than elementary school teachers. The results suggest that teachers assign students activities which require a variety of ICT tools, and teachers’ own ICT practices influence the type of ICT activities they assign to students.     

Does Blogging Empower Women? Exploring the Role of Agency and Community

Two studies explored the relationship between blogging and psychological empowerment among women. First, a survey (N = 340) revealed that personal journaling empowers users by inducing a strong sense of community whereas filter blogging does so by enhancing their sense of agency. Various user motivations were also shown to predict psychological empowerment. Next, a 2 (type of blog) X 2 (comments) X 2 (site visits) factorial experiment (N = 214) found that 2 site metrics—the number of site visits and number of comments—affect psychological empowerment through distinct mechanisms—the former through the sense of agency and the latter through the sense of community. These metrics are differentially motivating for bloggers depending on the type of blog maintained: filter or personal.     

Do the allocation and quality of intellectual assets affect the reputation of open source software projects?

We study the effect exerted by intellectual asset quality, social interaction, and the (re) allocation of intellectual assets on the reputation of open source software projects by analyzing 3196 software games over twelve months. Our main findings are as follows: (1) the aggregate performance of the individuals involved in a project increases the project's reputation, (2) changes in individual commitment affect project reputation, (3) social interaction increases project reputation, (4) reputation is more sensitive to the performance of individuals than to social interaction, and (5) the quality of intellectual assets and the project's social interaction both moderate the negative effect of changes in individual commitment.     

What is the relation between slow feature analysis and independent component analysis?

We present an analytical comparison between linear slow feature analysis and second-order independent component analysis, and show that in the case of one time delay, the two approaches are equivalent. We also consider the case of several time delays and discuss two possible extensions of slow feature analysis.     

Who avoids location-based advertising and why? Investigating the relationship between user perceptions and advertising avoidance

This study investigates how perceptual factors are associated with mobile consumers’ avoidance of location-based mobile advertising (LBA), and whether the relationships between the perceptual factors and LBA avoidance are influenced by consumers’ mobile device usage levels. The results of a national web survey with 605 Singaporean mobile consumers show that those who find LBA impedes goals, requires sacrifice, and lacks utility are more likely to avoid it. When examining the differences of heavy, medium, and light mobile device users, the analyses reveal that the effects of perceived utility and entertainment on LBA avoidance are greater for medium and heavy users than for light users. Theoretical and practical implications of our findings are discussed, as are the limitations and suggestions for future research.     

Does ethical ideology affect software piracy attitude and behaviour? An empirical investigation of computer users in China

This study empirically examines Chinese computer users’ ethical ideology and its relationship to their software piracy attitude and behaviour. The investigation reveals several important findings. First, cluster analysis results show that Chinese computer users can be divided into four ethical ideology types (i.e., situationists, absolutists, subjectivists, and exceptionists) reasonably consistent with Forsyth's taxonomy. Second, when compared with situationists, absolutists, and exceptionists, subjectivists are found to have the least unfavourable attitude towards software piracy and are most frequently engaged in software piracy. Third, Chinese computer users’ ideological relativism exerts a stronger influence on their software piracy attitude and behaviour than does their ideological idealism. The findings suggest that the government, and authentic software developers and vendors should focus on subjectivists as their target audience of anti-software piracy communications. These policy makers and practitioners should also make concerted efforts to help subjectivists better realise how their software piracy act may damage parties ‘proximate’ to themselves so as to lower the rate of software piracy.