Carl Lee Hanson

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BACKGROUND The introduction of Apple's iPhone provided a platform for developers to design third-party apps, which greatly expanded the functionality and utility of mobile devices for public health. OBJECTIVE This study provides an overview of the developers' written descriptions of health and fitness apps and appraises each app's potential for(More)
Public health-related topics are difficult to identify in large conversational datasets like Twitter. This study examines how to model and discover public health topics and themes in tweets. Tobacco use is chosen as a test case to demonstrate the effectiveness of topic modeling via LDA across a large, representational dataset from the United States, as well(More)
BACKGROUND Adderall is the most commonly abused prescription stimulant among college students. Social media provides a real-time avenue for monitoring public health, specifically for this population. OBJECTIVE This study explores discussion of Adderall on Twitter to identify variations in volume around college exam periods, differences across sets of(More)
The second generation of Internet-based applications (i.e., Web 2.0), in which users control communication, holds promise to significantly enhance promotional efforts within social marketing campaigns. Web 2.0 applications can directly engage consumers in the creative process by both producing and distributing information through collaborative writing,(More)
BACKGROUND Suicide is a leading cause of death in the United States. Social media such as Twitter is an emerging surveillance tool that may assist researchers in tracking suicide risk factors in real time. AIMS To identify suicide-related risk factors through Twitter conversations by matching on geographic suicide rates from vital statistics data. (More)
Despite the expanding use of social media, little has been published about its appropriate role in health promotion, and even less has been written about evaluation. The purpose of this article is threefold: (a) outline purposes for social media in health promotion, (b) identify potential key performance indicators associated with these purposes, and (c)(More)
Health practitioners often use the terms marketing and promotion interchangeably. Yet, promotion is just one element of an overall marketing strategy. To realize the greatest impact there must be a combination of all the marketing components, including product, price, place, and promotion. The purpose of this article is to clarify the role of promotion and(More)
Competence in undergraduate oral surgery involves assessment of the students' knowledge, practical skill and attitude. The assessment of practical skills can be achieved using a formative assessment method such as the structured clinical operative test (SCOT) which uses a checklist for the assessment of a clinical task. The aim of this study was primarily(More)
BACKGROUND Twitter is a popular social media forum for sharing personal experiences, interests, and opinions. An improved understanding of the discourse on Twitter that encourages marijuana use can be helpful for tailoring and targeting online and offline prevention messages. OBJECTIVES The intent of the study was to assess the content of "tweets" and the(More)
Twitter is a micro-blogging application, which is commonly used as a way for individuals to maintain social connections. Social scientists have also begun using Twitter as a data source for understanding more about human interactions. There is very little research about Twitter’s utility for monitoring health related attitudes, beliefs and behaviors. The(More)