Abstract

The abuse of alcohol beverages is considered a public health problem worldwide. Several researchers have been addressing this problem and one of the best ways to know it is by surveying attitudes. The attitudes toward alcohol use are consistent predictors of alcohol use, but the intended use may mediate these relations. With this goal in question, we sought to test this mediation model: attitudes toward alcohol use → alcohol use’s intention → alcohol use. A total of 220 students participated in the study of public and private high schools of the Federal District, Brazil, equally distributed by gender, with ages ranging from 12 to 42 years, the majority of young people. It is shown correlations between measures of attitudes toward alcohol use, intended use and use and is further corroborated the model of partial mediation. These results are compared with previous research and suggestions in advance to the prediction of alcohol use by the attitudes.

Abstract

In recent years, the growing prevalence of social networks makes it possible to utilize human users as sensors to inspect city environment and human activities. Consequently, valuable insights can be gained by applying data mining techniques to the data generated through social networks. In this work, a practical approach to combine data mining techniques with statistical analysis is proposed to implement crowd sensing in a smart city. A case study to analyze the relationship between weather conditions and traffic congestion in Beijing based on tweets posted on Sina Weibo platform is presented to demonstrate the proposed approach. Following the steps of data pre-processing and topic determination, we applied Granger Causality Test to study the causal relationships between weather conditions, traffic congestion and human outdoor activity. The mediation analysis is also implemented to verify human outdoor activity as a mediator variable significantly carrying the influence of good weather to traffic congestion. The result demonstrates that outdoor activity serves as a mediator transmitting the effect of good weather on traffic congestion. In addition, the causes of negative emotion are also studied.

Abstract

The results of an online cross-cultural survey conducted from mid-March to mid-April 2020 in various countries (N = 789) are presented. The theoretical basis of this work is uses and gratifications theory. This work provides a novel contribution regarding communication use in the context of the coronavirus pandemic. The results indicate that the consumption of information about the coronavirus is structured along four latent dimensions: (a) specialized health information on the Internet, official websites, and obtained through health personnel; (b) through “visual” social media; (c) through “written” social media and face-to-face contacts; and (d) through the mass media. Significant differences are found in all the dimensions of consumption depending on age and country of residence. Furthermore, it is observed that high consumption of information about the coronavirus increases perceived knowledge on the subject, which in return leads to the adoption of preventive measures. The present work provides a first snapshot of communication use in the face of the coronavirus pandemic crisis and provides a portrait of the behavior of communication users in the month immediately after the declaration of the Covid-19 pandemic worldwide. It can be concluded that communication has played a fundamental role in transmitting preventive information in the face of the coronavirus crisis.

Abstract

The results of an online cross-cultural survey conducted from mid-March to mid-April 2020 in various countries (N = 789) are presented. The theoretical basis of this work is uses and gratifications theory. This work provides a novel contribution regarding communication use in the context of the coronavirus pandemic. The results indicate that the consumption of information about the coronavirus is structured along four latent dimensions: (a) specialized health information on the Internet, official websites, and obtained through health personnel; (b) through “visual” social media; (c) through “written” social media and face-to-face contacts; and (d) through the mass media. Significant differences are found in all the dimensions of consumption depending on age and country of residence. Furthermore, it is observed that high consumption of information about the coronavirus increases perceived knowledge on the subject, which in return leads to the adoption of preventive measures. The present work provides a first snapshot of communication use in the face of the coronavirus pandemic crisis and provides a portrait of the behavior of communication users in the month immediately after the declaration of the Covid-19 pandemic worldwide. It can be concluded that communication has played a fundamental role in transmitting preventive information in the face of the coronavirus crisis.