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This paper examines the role of cultural values measured as collectivism, face-saving, and conflict-avoidance, in predicting employee voice behavior. Using data (n = 198) collected from automotive-industry employees in the United States (US) and Korea, several interesting findings emerged. First, and most notably, for a “leaver” who chooses the exit option, culture does not matter, such that none of the three cultural values have a significant association with the exit option across countries. Second, for a “stayer,” who chooses the voice, loyalty, or neglect option, culture does matter in that cultural-specific values, such as collectivism, face-saving, and conflict-avoidance were found to affect employees nonexit options in the Korean sample, but not in the U.S. sample. The results of this study suggest that these three cultural values guide and predict employee voice behavior. Additionally, the results of this study confirm that job alternatives are a significant predictor of the exit option across cultures. This study therefore presents strong empirical evidence of the effect of culture on employee voice behavior and increases our understanding of employee voice behavior across cultures.

The purpose of the study was to explore heat-accumulative and thermal-conductive characteristics of copper-graphene composite film (Cu-G film) while applying it to a human-skin analogue.

In the preliminary experiment, the authors evaluated the thermal conductive characteristics of the Cu-G film in three covered conditions (no film, copper film, and Cu-G film conditions). For the first factorial experiment, the heat-accumulative properties over heated pig skin were compared at air temperatures of 10, 25 and 35°C. For the second factorial experiment, 105 trials were conducted on pig skin by combining air temperatures, trapped air volumes, and numbers of film layers.

The results from the preliminary experiment showed that the Cu-G film distributed the surface heat to the outside of the Cu-G film, which resulted in even distribution of heat inside and outside the Cu-G film, whereas the copper film accumulated heat inside the copper film. The human-skin analogue of pig skin, however, showed the opposite tendency from that of the plastic. The pig-skin temperatures beneath the Cu-G film were higher than those beneath the copper film, and those differences were remarkable at the air temperature of 10°C. The accumulative heat was affected by the trapped air volume, fit to the skin, and number of Cu-G film layers.

In conclusion, the Cu-G film more effectively accumulated heat on the human-skin analogue than copper film, and those effects were more marked in cold environments than in mild or hot environments.

The purpose of this paper is to evaluate the effects of intermittent and continuous heating protocols using graphene-heated clothing and identify more effective body region for heating in a cold environment.

Eight males participated in five experimental conditions at an air temperature of 0.6°C with 40 percent relative humidity: no heating, continuous heating the chest, continuous heating the back, intermittent heating the chest, and intermittent heating the back.

The results showed that the electric power consumption of the intermittent heating protocol (2.49 W) was conserved by 71 percent compared to the continuous protocol (8.58 W). Rectal temperature, cardiovascular and respiratory responses showed no significant differences among the four heating conditions, while heating the back showed more beneficial effects on skin temperatures than heating the chest.

First of all, this study was the first report to evaluate cold protective clothing with graphene heaters. Second, the authors provided effective intermittent heating protocols in terms of reducing power consumption, which was able to be evaluated with the characteristics of fast-responsive graphene heaters. Third, an intermittent heating protocol on the back was recommended to keep a balance between saving electric power and minimizing thermal discomfort in cold environments.

This paper investigated the impact of the distance of the heating unit from the body in a multi-layered winter clothing system on effective thermal insulation and heating efficiency.

To identify changes in the thermal insulation and heating efficiency of electrical heating in different layers inside a winter clothing ensemble, a series of thermal manikin tests was conducted. A multi-layered winter ensemble with and without activation of a heating unit was tested on the thermal manikin under two different ambient temperature conditions (10°C and -5°C).

Results show that the effective thermal insulation of test ensembles increased by 5-7% with the activation of the heating unit compared to that without the activation. The closer the heating unit to the body, the higher the effective thermal insulation was in both ambient temperature conditions. This trend was more significant at lower ambient temperature.

The results of this study indicate that providing electric heating next to the skin is the most effective in increasing effective thermal insulation and decreasing body heat loss in both ambient temperature (-5°C and 10°C). This trend was more remarkable in colder environment at -5°C of ambient temperature as evidenced by sharp decrease in heating efficiency and effective thermal insulation with an increase in distance between the manikin skin and heating unit at -5°C of ambient temperature compared to at 10°C of ambient temperature.

Based on the results, it is expected that proximity heating next to the skin, in cold environment, may reduce the weight and size of the battery for the heating unit because of the higher efficiency of electric heating and the potentially immediate perception of warmth supported by the greatest increase in effective thermal insulation, as well as the lowest heat loss that comes with activation of heating on the first layer in cold environment.

The finding of this study provides guidelines to sportswear designers, textile scientists, sports enthusiasts, and civilians who consider electric heating benefits for improved thermal comfort and safety in cold environments, especially in the areas of outdoor and winter sports and in military service. The results of this study indicate that providing electric heating next to the skin is the most effective in increasing effective thermal insulation and decreasing body heat loss in both ambient temperature (-5°C and 10°C).

The purpose of the present study was to evaluate the effect of air mattress pressure on sleep quality.

Ten young healthy males participated in all hard surface [AH], shoulder soft [SS] and shoulder and hip soft mattress [SHS] conditions. The surface pressure for SS and SHS were set at their preferred levels.

The results showed that sleep efficiencies were over 95% for all the three conditions; there were no significant differences in individual sleep variables among the three conditions, but overall sleep quality was better for SS than AH (p = 0.065); heart rates during sleep was greater for AH than the other two conditions (p < 0.1); and a stronger relationship between clothing and bed microclimate humidity were found for SS and SHS than that for AH.

These results indicated that the both pressure relief air mattresses that were set at their own preferred levels provided high quality sleep with no marked differences.

Air pressure relief mattresses can improve sleep quality of healthy individuals during sleep at night. The results can be used to understand appropriate pressure distribution on surface mattress according to body region, and also to develop algorithms to provide optimum sleep using mattresses with surface pressure control by body region.

The present study found that the shoulder and/or hip pressure relief air mattresses that were set at their own preferred levels provided high quality sleep with no marked differences.

The purpose of this paper is to examine the unique effect of ethnicity on people's internet connectedness. Internet connectedness is a multi‐dimensional relationship that individuals form with the internet.

Survey findings from a study of four ethnic groups living in seven residential areas within ten miles from the Los Angeles Civic Center indicate that ethnicity has a significant unique effect not only on the rate of people's internet access, but also on the three dimensions of the internet connectedness index: context and history; scope and intensity; and centrality, after controlling for individual socio‐economic factors.

The results indicated that African‐Americans lagged behind other ethnic groups in all three dimensions of their internet connectedness. This suggests that the ways in which the internet is incorporated into people's everyday lives are likely to differ by geo‐ethnic areas.

Implications of these results are discussed from a “communication infrastructure framework,” which provides an ecological framework to interpret the ethnic differences in the multiple dimensions of internet connectedness.

This study searches for the communication message strategies for two distinct brand extension types: close and remote brand extensions. An experiment is conducted with four cells which were exposed to different communication strategies for five extension types. Communication strategies used were brand essence cue, extension attribute cue, extension dissonance reducer cue, and some combinations of the named cues. Results show that different communication strategies are necessary for extension situations that differ in distance from parent brand territories.

The purpose of this paper is to analyze public trust during the aftermath of technological and hybrid natural-technological/natech disasters – Hurricane Katrina (2005) and the Fukushima Daiichi nuclear meltdown in Japan (2011). The work identifies common themes, actions and inactivity that can lead to citizens distrusting the government after disasters.

News reports from the two areas leading newspapers formed the body of the Hurricane Katrina and the Fukushima Daiichi nuclear meltdown case studies. Of key interest were emerging themes of trust and/or distrust during the immediate impact phase of the disaster in addition to government failures and social breakdowns resulting in a loss of trust in government institutions and individual leaders.

The series of examples illustrate how specific action or in-action by local and federal governments served as a catalyst for a loss of trust in government institutions and individual leaders in government while proposing potential strategies to help public leaders reduce distrust during times of crisis.

The two limitations were the use of only newspapers and the passage of a new law in 2013, the “Specially Designated Secrets Protection Law,” designed to limit news reporting of the press in Japan on the issue of nuclear radiation exposure of the general public in Japan, some of the new data are not available.

The research concludes by offering specific ways to regain trust after a perception of failure during pre- and post-disaster management in the age of mega disasters. The paper lists several recommendations that can be practically implemented to develop a culture of transparent communication, civic engagement in planning processes and inspire trust among stakeholders.

While the paper identifies barriers to establishing trust among government agencies, the citizenry and private industry, it seeks to help inform policy frameworks regarding the importance of the government’s ability to sustain a strong sense of trust that engenders civic participation in preserving or regaining trust in the aftermath of disasters.