BackgroundThe encouragement of healthy lifestyles for obesity prevention in young people is a public health priority. The European Youth Tackling Obesity (EYTO) project is a multicentric intervention project with participation from the United Kingdom, Portugal, the Czech Republic and Spain. The general aim of the EYTO project is to improve lifestyles, including nutritional habits and physical activity practice, and to prevent obesity in socioeconomically disadvantaged and vulnerable adolescents. The EYTO project works through a peer-led social marketing intervention that is designed and implemented by the adolescents of each participating country. Each country involved in the project acts independently. This paper describes the “Som la Pera” intervention Spanish study that is part of the EYTO project.Methods/DesignIn Spain, the research team performed a cluster randomised controlled intervention over 2 academic years (2013–2015) in which 2 high-schools were designated as the control group and 2 high-schools were designated as the intervention group, with a minimum of 121 schoolchildren per group.From the intervention group, 5 adolescents with leadership characteristics, called “Adolescent Challenge Creators” (ACCs), were recruited. These 5 ACCs received an initial 4 h training session about social marketing principles and healthy lifestyle theory, followed by 24 sessions (1.30 h/session) divided in two academic years to design and implement activities presented as challenges to encourage healthy lifestyles among their peers, the approximately 180–200 high-school students in the intervention group. During the design of the intervention, it was essential that the ACCs used the 8 social marketing criteria (customer orientation, behaviour, theory, insight, exchange, competition, segmentation and methods mix). The expected primary outcomes from the Spanish intervention will be as follows: increases in the consumption of fruits and vegetables and physical activity practice along with reductions in TV/computer/game console use. The secondary outcomes will be as follows: increased breakfast consumption, engagement with local recreation and reduced obesity prevalence. The outcomes will be measured by the Health Behaviour in School-aged Children Study (HBSC) survey at baseline and at the end of the intervention.In the control group, no intervention was implemented, but the outcome measurements were collected in parallel with the intervention group.DiscussionThis study described a new methodology to improve lifestyles and to address adolescent obesity.Trial registrationClinicalTrials.gov: NCT02157402. Registered 03 June 2014.Electronic supplementary materialThe online version of this article (doi:10.1186/s12889-015-1920-1) contains supplementary material, which is available to authorized users.
Directed links in social media could represent anything from intimate friendships to common interests, or even a passion for breaking news or celebrity gossip. Such directed links determine the flow of information and hence indicate a user's influence on others-a concept that is crucial in sociology and viral marketing. In this paper, using a large amount of data collected from Twitter, we present an in-depth comparison of three measures of influence: indegree, retweets, and mentions. Based on these measures, we investigate the dynamics of user influence across topics and time. We make several interesting observations. First, popular users who have high indegree are not necessarily influential in terms of spawning retweets or mentions. Second, most influential users can hold significant influence over a variety of topics. Third, influence is not gained spontaneously or accidentally, but through concerted effort such as limiting tweets to a single topic. We believe that these findings provide new insights for viral marketing and suggest that topological measures such as indegree alone reveals very little about the influence of a user.
Scotland be an independent country?". Two years before, both the Yes Scotland and the Better Together campaign started to build their discourses about what Independence would imply. The aim of the present study is to analyze which are the different arguments that lay beneath these discourses, paying special attention to the use of figures such as personifications, metonyms and metaphors. For that, we have chosen the main political adverts from both campaigns and we have analyzed them by applying a rhetorical-argumentative methodology. Among the main results, the underlining of the importance of the decision that has to be taken on 18 th September by presenting independence as an opportunity to build a fairer and more prosper country or as a risky option must be stressed.
In April 2019, VOX, a far-right populist party, won seats for the first time in the Spanish parliament. VOX successfully used social media to participate in the electoral debate and to establish a more direct link with its followers. We investigated how the VOX online community was structured during the election campaign and to what extent the most influential profiles spread the party’s messages. We accordingly analysed two samples, one composed of tweets and retweets that used the hashtags #28A, #28Abril, and #28AbrilElecciones, and the other composed of metaphorical expressions identified in tweets by influencers. Applying social network analysis to the first sample, we studied the form and structure of the network and identified key profiles in the VOX community, i.e., influencers, builders, and bridges. Using critical metaphor analysis with the second sample, we identified the main frames used by VOX influencers to explore whether they reproduced the party’s populist discourse. We found that the VOX online community in 2019 did not only include party supporters or members but was composed of varied profiles. For this reason, the populist metaphorical framing used by the VOX leadership was only partially disseminated.
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