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Objective This study explored the effects of COVID-19 vaccine promotion messages highlighting the benefit at individual, community, and country levels. Based on the cultural theory of risks, we investigated how individuals’ valuation of individualism vs. communitarianism and hierarchical vs. egalitarian social structure affect their responses to vaccine messages. Methods An online experiment (N = 702) with four video message conditions (individual-centered, community-centered, country-centered, and no message) was conducted. Participants were asked about their cultural cognition worldview, then were randomly assigned to view one message. Participants also reported their willingness to receive COVID-19 vaccines and support for vaccine mandate. Results Respondents were more likely to get vaccinated and support vaccine mandates after viewing an individual-centered message, less with a community-centered message. Individuals who value individualism were more likely to respond positively to individual-centered messages, but those who believe more in communitarianism value were less likely. Conclusion Results showed that individuals are motivated selectively to respond to certain claims that cohere with their worldview and therefore respond differently to vaccine benefit frames. Practice Implications The results point to the importance of understanding audiences’ worldviews. By identifying this process through hierarchical and individualistic values, properly designed health promotion messages can maximize the desired outcomes.

This study examined the influences of perceived distance to communicator on the effects of aggressive style (i.e. personal attacks and intense languages) in communicating scientific issues such as COVID-19 to the public. With a multi-site experiment ( N = 464), we found that aggression led to a heightened violation of expected social norm regarding communication styles. However, the interpretation of violation varied depending on the individual’s perceived distance to the communicator. Close distance articulated the urgency and severity of COVID-19 risks conveyed with aggression, which further increased compliance with the message. Far distance perception amplified aggression’s negative influence on writer likeability. The findings showed that aggressive communication may generate positive outcomes when dealing with public understanding of scientific issues such as COVID-19, but communicators need to build a closer connection with their audience.

Communicating science with nonexperts (SciComm) is an important scientific practice. SciComm can inform decision making and public policies. Recently, seminal reports have indicated that SciComm is a practice in which students should engage. Unfortunately, students have few opportunities to engage in SciComm, partially due to the absence of a framework that can help instructors facilitate such activities. We present a framework of the essential elements of effective SciComm that synthesizes previous work to describe the who, why, what, and how of effectively communicating science with nonexperts. We applied the framework to a lesson for undergraduate biology students and assessed student outcomes. The lesson uses an introduction, assignment sheet, and worksheet to guide students through planning, producing, and describing their SciComm assignment. We assessed the outcomes of the lesson by quizzing students on their knowledge of SciComm and asking about their perceptions of SciComm and the lesson. Students performed well but focused some of their responses on what they were assigned in the lesson instead of what was best for effective SciComm. Moreover, students perceived the lesson positively. This work can be used by practitioners and researchers to understand how to engage students in the important scientific practice of SciComm.

The current study examined the effects of aggressive communication styles on individuals’ pro-environmental behavioral intentions. Two underlying mechanisms—psychological reactance and expectancy violation—as well as the moderating role played by political ideology were investigated. An online experiment ( N = 423) was conducted and the results showed that more aggressive style was more likely to trigger psychological reactance and violation of expectation, liberals responded more negatively to the aggressive message than conservatives, and expectancy violation was an important mediator. The findings provide explanations for how communication styles affect individuals’ information processing and offer implications regarding selecting communication styles wisely.

The present study investigated the effects of communication styles, source expertise, and audiences’ preexisting attitudes in the contexts of the debate regarding genetically modified organisms. A between-subject experiment ( N = 416) was conducted manipulating communication styles (aggressive vs. polite) and the expertise of the communicator (scientist vs. nonscientist) in blog articles. The results showed significant effects of communicator expertise and individuals’ preexisting attitudes on writer likability and message quality, depending on the communication style used. Expectancy violation was found as a significant mediator that explains the differences. These findings provided a plausible explanation for the way in which communication styles work in science communication contexts and offered practical implications for science communicators to communicate more strategically.

Polycyclic aromatic hydrocarbons (PAHs) pollution as well as the emissions of nitric oxide (NO) and greenhouse gas nitrous oxide (N2O) in denitrification processes are currently two environmental issues of great concern. Although bioremediation of PAHs under denitrification is considered a promising approach, denitrification was an important contributor to N2O and NO emissions. This long-term study confirmed for the first time that microorganisms could utilize NO to efficiently degrade phenanthrene and fluoranthene. When the two systems of NO-dependent phenanthrene and fluoranthene degradation were stable, the first-order rate constants of phenanthrene and fluoranthene in the two systems (0.1940 and 0.0825 day−1, respectively) were close to those values (0.2290 and 0.1085 day−1, respectively) observed at nitrate-reducing conditions. Further analysis of functional genes revealed that phenanthrene and fluoranthene might be degraded under the combined action of the anaerobic pathway mediated by NO reduction and intra-aerobic pathway mediated by NO dismutation. The genomic analysis showed that Nod genes had high diversity and most of them were similar to aquifer cluster group in the two systems. Microbial community structure analysis indicated that Pseudomonas and Ochrobactrum might be key participants in NO-dependent phenanthrene degradation system, and Azoarcus, Alicycliphilus and Moheibacter might play vital roles in NO-dependent fluoranthene degradation system. This study provides new perspective for anaerobic remediation of PAH pollution and simultaneously reducing NO and N2O emissions during bioprocesses, which has important ecological significance for amending sediment and soil PAHs contamination and potential application for the removal of PAHs in flue gas.

A randomized experiment of 1,024 U.S. adults was conducted to examine the effect of the war on science frame on perceptions of scientists’ credibility. Because recent use of this frame is a response to the Trump Administration, those who politically align with him (e.g., conservatives) are likely to experience identity threat when confronted with the war on science frame. Results show that when viewed as aggressive, the war on science frame prompted conservatives to report lower agreement with a scientist credibility index than liberals, suggesting that the war on science frame has the potential to further polarize science.

The current study investigated the effect of communication style in the child vaccination debate. Based on expectancy violation theory, this study tested the effects of aggressive, neutral, and polite communication styles in the contexts of child vaccination, controlling for parents' attitudes toward the issue. The online experiment showed that expectancy violation significantly mediates the relationship between message style and outcomes. The results provided a novel way to understand the effect of communication style on child vaccination message and practical implications for health communicators to operate communication style during interactions in health contexts.

Sharing information about disasters and victims on social media can help raise situational awareness, enhance issue-related knowledge, promote prosocial behaviors and rebuild a sense of community during the recovery stage. In the current study, we investigate two specific ways of framing victim information, how they influence the likelihood of sharing such information on social media, and the underlying cognitive and emotional mechanisms. Participants (N = 631) were randomly assigned to 1 of 12 experimental conditions as part of 2 (victim exemplification: present vs. absent) × 2 (provocative language: present vs. absent) × 3 (message stimuli) between-subjects factorial design. Main findings indicate that, although both sadness and message enjoyment were positively associated with information sharing intentions, messages that induced more enjoyment and less sadness were more likely to be shared. In addition, messages that violated less expectation were also more likely to be shared. Overall, this study suggests that those wanting to create a victim message that can be shared more widely should produce a message that elicits more sadness, uses less provocative language and is more enjoyable.

Two experiments (N = 229 and N = 268) assessed the effect of aggressive risk communication about GMOs by a scientist on respondents’ perceptions of message quality and writer (the scientist...

The present study explored the effects of switching between reading an online article and checking Facebook on recognition memory, moderated by polychronicity, or preference for multitasking. The results of the study indicated that participants recognized online information less efficiently when they were required to check Facebook (forced multitasking) and when they could choose to check Facebook if and when they wanted (voluntary multitasking) compared with the control, non-multitasking, condition. I.e., the opportunity to multitask interfered with the efficiency of online information processing as much as actual multitasking. Polychronicity was a significant moderator of the multitasking effects. Low polychronics were negatively affected by multitasking to a greater extent than high polychronics. Their article recognition levels were lower than those of high polychronics. Two recognition measures derived from the signal detection theory: recognition sensitivity and criterion bias, were used. The study indicated that forced and voluntary multitasking affected high and low polychronics differently. Low polychronics showed greater cognitive effort than high polychronics when they engaged in voluntary media multitasking, while the amount of cognitive resources allocated to processing increased in high polychronics in the non-multitasking (control) condition. When high polychronics did not have control over switching to Facebook (forced multitasking), their recognition of the online article content decreased. Theoretical, methodological, and managerial implications of the study are discussed. Opportunity to multitask interfered with memory as much as actual multitasking.Multitasking negatively affected low polychronics more than high polychronics.Recognition increased in high polychronics who had control over using Facebook.Low polychronics showed higher cognitive effort during voluntary multitasking.High polychronics showed higher cognitive effort in the nonmultitasking condition.

As health organizations increasingly use the Internet to communicate medical information and advice (Shortliffe et al., 2000; World Health Organization, 2013), studying factors that affect health information processing and health-protective behaviors becomes extremely important. The present research applied the elaboration likelihood model of persuasion to explore the effects of media multitasking, polychronicity (preference for multitasking), and strength of health-related arguments on health-protective behavioral intentions. Participants read an online article about influenza that included strong and weak suggestions to engage in flu-preventive behaviors. In one condition, participants read the article and checked Facebook; in another condition, they were exposed only to the article. Participants expressed greater health-protective behavioral intentions in the media multitasking condition than in the control condition. Strong arguments were found to elicit more positive behavioral intentions than weak arguments. Moderate and high polychronics showed greater behavioral intentions than low polychronics when they read the article in the multitasking condition. The difference in intentions to follow strong and weak arguments decreased for moderate and high polychronics. The results of the present study suggest that health communication practitioners should account for not only media use situations in which individuals typically read about health online but also individual differences in information processing, which puts more emphasis on the strength of health-protective suggestions when targeting light multitaskers.

In this study, we present results from an extensive survey of US-based microbiologists (adults) to explore these scientists’ perceptions and behaviors related to communicating their research. Specifically, we explored the frequency with which microbiologists engage in public communication, how they evaluate their public communication experiences, and the factors associated with their willingness to engage in face-to-face and online public communication in the future. Data from a multi-wave online survey suggest that microbiologists (N = 903) are somewhat frequent communicators who derive great value from their outreach efforts. The results further suggest that social and psychological drivers of future intentions to engage with the public are consistent with the Theory of Planned Behavior (TPB). Specifically, microbiologists with more positive attitudes toward engagement were more willing to partake in direct and online communication activities. Similarly, microbiologists who believe they possess communication skills are more willing than their less efficacious colleagues to do either type of outreach. Our results also indicate that more-senior and more-active researchers are more willing to participate in direct and online engagement. Implications for communication training are discussed.

Background: Health and fitness applications (apps) are one of the major app categories in the current mobile app market. Few studies have examined this area from the users' perspective. This study adopted the Extended Unified Theory of Acceptance and Use of Technology (UTAUT2) Model to examine the predictors of the users' intention to adopt health and fitness apps. Materials and Methods: A survey (n=317) was conducted with college-aged smartphone users at a Midwestern university in the United States. Results: Performance expectancy, hedonic motivations, price value, and habit were significant predictors of users' intention of continued usage of health and fitness apps. However, effort expectancy, social influence, and facilitating conditions were not found to predict users' intention of continued usage of health and fitness apps. Conclusions: This study extends the UTATU2 Model to the mobile apps domain and provides health professions, app designers, and marketers with the insights of user experi...