Kar-Hai Chu
Dados Biográficos
| ID | 636113 |
|---|---|
| NOME | Kar-Hai Chu |
| PRENOMES | Kar-Hai |
| SOBRENOME | Chu |
| ASSINATURA | CHU K |
| AFILIAÇÕES | University of Pittsburgh |
| ORCID | 0000-0002-2486-8846 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 12 |
| TOTAL DE CITAÇÕES | 14 |
| TOTAL COMO AUTOR | 12 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2013 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2022 |
| ÍNDICE H | 3 |
E-Cigarette-Related Nicotine Misinformation on Social Media
Background. Twitter provides an opportunity to examine misperceptions about nicotine and addiction as they pertain to electronic nicotine delivery systems (ENDS). The purpose of this study was to systematically examine a sample of ENDS-related tweets that presented information about nicotine or addiction for the presence of potential misinformation.Methods. A total of 10.1 million ENDS-related tweets were obtained from April 2018 through March 20…
Covid-19 Vaccine Hesitancy, Acceptance, and Promotion Among Healthcare Workers
Re-evaluating standards of human subjects protection for sensitive health data in social media networks
Integrating Social Dynamics Into Modeling Cigarette and E-Cigarette Use
Background. The use of electronic cigarettes (e-cigarette) offers potential to facilitate cigarette smoking cessation, yet potentially increases risk of cigarette smoking initiation. This relationship has been primarily modeled in mathematical ways that often do not represent real-world complexities, which could inform decisions regarding local prevention programs or policies. Aims. To develop a model of cigarette and e-cigarette use that combine…
Toward Real-Time Infoveillance of Twitter Health Messages
There is growing interest in conducting public health research using data from social media. In particular, Twitter “infoveillance” has demonstrated utility across health contexts. However, rigorous and reproducible methodologies for using Twitter data in public health are not yet well articulated, particularly those related to content analysis, which is a highly popular approach. In 2014, we gathered an interdisciplinary team of health science r…
Electronic cigarette retailers use Pokémon Go to market products
Recently, we witnessed a new marketing strategy in which vape shops and online e-cigarette retailers have harnessed the popularity of the interactive smartphone game Pokemon Go to promote vaping products. This approach combines the strengths of recent and traditional strategies thought to be effective in promoting tobacco use to adolescents and young adults: (1) cartoons;1 tobacco product placement in video games2 ,3 and (2) interactive promotion…
Coding communications across time
GLOBALink, a large online network of tobacco control professionals, was active in the promotion of the World Health Organization's Framework Convention on Tobacco Control treaty, an international treaty aimed at reducing the global burden of tobacco-related death and disease. We examined and compared the roles that different countries served in the GLOBALink community during FCTC negotiation and ratification. Previous studies of FCTC ratification…
Campaigns and counter campaigns
Findings showed the time dynamics of Twitter and the possibility for real-time monitoring of education campaigns
Vaping on Instagram
Instagram affords its users the ability to post images of e-cigarette-related behaviours and gives advertisers the opportunity to display their product. Future research should incorporate novel data streams to improve public health surveillance, survey development and educational campaigns
Social Network Analysis for Program Implementation
This paper introduces the use of social network analysis theory and tools for implementation research. The social network perspective is useful for understanding, monitoring, influencing, or evaluating the implementation process when programs, policies, practices, or principles are designed and scaled up or adapted to different settings. We briefly describe common barriers to implementation success and relate them to the social networks of implem…
Diffusion of innovations theory applied to global tobacco control treaty ratification
This study applies diffusion of innovations theory to understand network influences on country ratification of an international health treaty, the Framework Convention for Tobacco Control (FCTC). From 2003 to 2014 approximately 90% of United Nations member countries ratified the FCTC. We hypothesized that communication between tobacco control advocates on GLOBALink, a 7000-member online communication forum in existence from 1992 to 2012, would be…
Using Visualizations to Explore Network Dynamics
Network analysis has become a popular tool to examine data from online social networks to politics to ecological systems. As more computing power has become available, new technology-driven methods and tools are being developed that can support larger and richer network data, including dynamic network analysis. This timely merger of abundant data and cutting edge techniques affords researchers the ability to better understand networks over time, …
Toward Real-Time Infoveillance of Twitter Health Messages
There is growing interest in conducting public health research using data from social media. In particular, Twitter “infoveillance” has demonstrated utility across health contexts. However, rigorous and reproducible methodologies for using Twitter data in public health are not yet well articulated, particularly those related to content analysis, which is a highly popular approach. In 2014, we gathered an interdisciplinary team of health science r…
Using Visualizations to Explore Network Dynamics
Network analysis has become a popular tool to examine data from online social networks to politics to ecological systems. As more computing power has become available, new technology-driven methods and tools are being developed that can support larger and richer network data, including dynamic network analysis. This timely merger of abundant data and cutting edge techniques affords researchers the ability to better understand networks over time, …
Diffusion of innovations theory applied to global tobacco control treaty ratification
This study applies diffusion of innovations theory to understand network influences on country ratification of an international health treaty, the Framework Convention for Tobacco Control (FCTC). From 2003 to 2014 approximately 90% of United Nations member countries ratified the FCTC. We hypothesized that communication between tobacco control advocates on GLOBALink, a 7000-member online communication forum in existence from 1992 to 2012, would be…
Using Visualizations to Explore Network Dynamics
Network analysis has become a popular tool to examine data from online social networks to politics to ecological systems. As more computing power has become available, new technology-driven methods and tools are being developed that can support larger and richer network data, including dynamic network analysis. This timely merger of abundant data and cutting edge techniques affords researchers the ability to better understand networks over time, …
Social Network Analysis for Program Implementation
This paper introduces the use of social network analysis theory and tools for implementation research. The social network perspective is useful for understanding, monitoring, influencing, or evaluating the implementation process when programs, policies, practices, or principles are designed and scaled up or adapted to different settings. We briefly describe common barriers to implementation success and relate them to the social networks of implem…
Diffusion of innovations theory applied to global tobacco control treaty ratification
This study applies diffusion of innovations theory to understand network influences on country ratification of an international health treaty, the Framework Convention for Tobacco Control (FCTC). From 2003 to 2014 approximately 90% of United Nations member countries ratified the FCTC. We hypothesized that communication between tobacco control advocates on GLOBALink, a 7000-member online communication forum in existence from 1992 to 2012, would be…
Campaigns and counter campaigns
Findings showed the time dynamics of Twitter and the possibility for real-time monitoring of education campaigns
Vaping on Instagram
Instagram affords its users the ability to post images of e-cigarette-related behaviours and gives advertisers the opportunity to display their product. Future research should incorporate novel data streams to improve public health surveillance, survey development and educational campaigns
Electronic cigarette retailers use Pokémon Go to market products
Recently, we witnessed a new marketing strategy in which vape shops and online e-cigarette retailers have harnessed the popularity of the interactive smartphone game Pokemon Go to promote vaping products. This approach combines the strengths of recent and traditional strategies thought to be effective in promoting tobacco use to adolescents and young adults: (1) cartoons;1 tobacco product placement in video games2 ,3 and (2) interactive promotion…
Coding communications across time
GLOBALink, a large online network of tobacco control professionals, was active in the promotion of the World Health Organization's Framework Convention on Tobacco Control treaty, an international treaty aimed at reducing the global burden of tobacco-related death and disease. We examined and compared the roles that different countries served in the GLOBALink community during FCTC negotiation and ratification. Previous studies of FCTC ratification…
Toward Real-Time Infoveillance of Twitter Health Messages
There is growing interest in conducting public health research using data from social media. In particular, Twitter “infoveillance” has demonstrated utility across health contexts. However, rigorous and reproducible methodologies for using Twitter data in public health are not yet well articulated, particularly those related to content analysis, which is a highly popular approach. In 2014, we gathered an interdisciplinary team of health science r…
Integrating Social Dynamics Into Modeling Cigarette and E-Cigarette Use
Background. The use of electronic cigarettes (e-cigarette) offers potential to facilitate cigarette smoking cessation, yet potentially increases risk of cigarette smoking initiation. This relationship has been primarily modeled in mathematical ways that often do not represent real-world complexities, which could inform decisions regarding local prevention programs or policies. Aims. To develop a model of cigarette and e-cigarette use that combine…
Re-evaluating standards of human subjects protection for sensitive health data in social media networks
E-Cigarette-Related Nicotine Misinformation on Social Media
Background. Twitter provides an opportunity to examine misperceptions about nicotine and addiction as they pertain to electronic nicotine delivery systems (ENDS). The purpose of this study was to systematically examine a sample of ENDS-related tweets that presented information about nicotine or addiction for the presence of potential misinformation.Methods. A total of 10.1 million ENDS-related tweets were obtained from April 2018 through March 20…
Covid-19 Vaccine Hesitancy, Acceptance, and Promotion Among Healthcare Workers
Medicine (10 obras) · Computer Science (7 obras) · Social media (7 obras) · Psychology (6 obras) · Public health (6 obras) · Social Media and Politics (6 obras) · World Wide Web (6 obras) · Business (5 obras) · Data science (4 obras) · Electronic cigarette (4 obras)