Post-January 6th deplatforming reduced the reach of misinformation on Twitter.

The social media platforms of the twenty-first century have an enormous role in regulating speech in the USA and worldwide1. However, there has been little research on platform-wide interventions on speech2,3. Here we evaluate the effect of the decision by Twitter to suddenly deplatform 70,000 misinformation traffickers in response to the violence at the US Capitol on 6 January 2021 (a series of events commonly known as and referred to here as 'January 6th'). Using a panel of more than 500,000 active Twitter users4,5 and natural experimental designs6,7, we evaluate the effects of this intervention on the circulation of misinformation on Twitter. We show that the intervention reduced circulation of misinformation by the deplatformed users as well as by those who followed the deplatformed users, though we cannot identify the magnitude of the causal estimates owing to the co-occurrence of the deplatforming intervention with the events surrounding January 6th. We also find that many of the misinformation traffickers who were not deplatformed left Twitter following the intervention. The results inform the historical record surrounding the insurrection, a momentous event in US history, and indicate the capacity of social media platforms to control the circulation of misinformation, and more generally to regulate public discourse.

Virtual lab coats: The effects of verified source information on social media post credibility.

Social media platform's lack of control over its content made way to the fundamental problem of misinformation. As users struggle with determining the truth, social media platforms should strive to empower users to make more accurate credibility judgements. A good starting point is a more accurate perception of the credibility of the message's source. Two pre-registered online experiments (N = 525;N = 590) were conducted to investigate how verified source information affects perceptions of Tweets (study 1) and generic social media posts (study 2). In both studies, participants reviewed posts by an unknown author and rated source and message credibility, as well as likelihood of sharing. Posts varied by the information provided about the account holder: (1) none, (2) the popular method of verified source identity, or (3) verified credential of the account holder (e.g., employer, role), a novel approach. The credential was either relevant to the content of the post or not. Study 1 presented the credential as a badge, whereas study 2 included the credential as both a badge and a signature. During an initial intuitive response, the effects of these cues were generally unpredictable. Yet, after explanation how to interpret the different source cues, two prevalent reasoning errors surfaced. First, participants conflated source authenticity and message credibility. Second, messages from sources with a verified credential were perceived as more credible, regardless of whether this credential was context relevant (i.e., virtual lab coat effect). These reasoning errors are particularly concerning in the context of misinformation. In sum, credential verification as tested in this paper seems ineffective in empowering users to make more accurate credibility judgements. Yet, future research could investigate alternative implementations of this promising technology.

Reporting of Ethical Considerations in Qualitative Research Utilizing Social Media Data on Public Health Care: Scoping Review.

BACKGROUND: The internet community has become a significant source for researchers to conduct qualitative studies analyzing users' views, attitudes, and experiences about public health. However, few studies have assessed the ethical issues in qualitative research using social media data. OBJECTIVE: This study aims to review the reportage of ethical considerations in qualitative research utilizing social media data on public health care. METHODS: We performed a scoping review of studies mining text from internet communities and published in peer-reviewed journals from 2010 to May 31, 2023. These studies, limited to the English language, were retrieved to evaluate the rates of reporting ethical approval, informed consent, and privacy issues. We searched 5 databases, that is, PubMed, Web of Science, CINAHL, Cochrane, and Embase. Gray literature was supplemented from Google Scholar and OpenGrey websites. Studies using qualitative methods mining text from the internet community focusing on health care topics were deemed eligible. Data extraction was performed using a standardized data extraction spreadsheet. Findings were reported using PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews) guidelines. RESULTS: After 4674 titles, abstracts, and full texts were screened, 108 studies on mining text from the internet community were included. Nearly half of the studies were published in the United States, with more studies from 2019 to 2022. Only 59.3% (64/108) of the studies sought ethical approval, 45.3% (49/108) mentioned informed consent, and only 12.9% (14/108) of the studies explicitly obtained informed consent. Approximately 86% (12/14) of the studies that reported informed consent obtained digital informed consent from participants/administrators, while 14% (2/14) did not describe the method used to obtain informed consent. Notably, 70.3% (76/108) of the studies contained users' written content or posts: 68% (52/76) contained verbatim quotes, while 32% (24/76) paraphrased the quotes to prevent traceability. However, 16% (4/24) of the studies that paraphrased the quotes did not report the paraphrasing methods. Moreover, 18.5% (20/108) of the studies used aggregated data analysis to protect users' privacy. Furthermore, the rates of reporting ethical approval were different between different countries (P=.02) and between papers that contained users' written content (both direct and paraphrased quotes) and papers that did not contain users' written content (P<.001). CONCLUSIONS: Our scoping review demonstrates that the reporting of ethical considerations is widely neglected in qualitative research studies using social media data; such studies should be more cautious in citing user quotes to maintain user privacy. Further, our review reveals the need for detailed information on the precautions of obtaining informed consent and paraphrasing to reduce the potential bias. A national consensus of ethical considerations such as ethical approval, informed consent, and privacy issues is needed for qualitative research of health care using social media data of internet communities.

Ethical considerations and methodological uses of Facebook data in public health research: A systematic review.

OBJECTIVE: Since 2016, around seven in 10 adults in the United States (U.S.) actively use Facebook. While much Facebook data is publicly available for research, many users may not understand how their data are being used. We sought to examine to what extent research ethical practices were employed and the research methods being used with Facebook data in public health research. METHODS: We conducted a systematic review (PROSPERO registration CRD42020148170) of social media-based public health research focused on Facebook published in peer-reviewed journals in English between January 1, 2006 and October 31, 2019. We extracted data on ethical practices, methodology, and data analytic approaches. For studies that included verbatim user content, we attempted to locate users/posts within a timed 10-min period. RESULTS: Sixty-one studies met eligibility criteria. Just under half (48%, n = 29) sought IRB approval and six (10%) sought and obtained informed consent from Facebook users. Users' written content appeared in 39 (64%) papers, of which 36 presented verbatim quotes. We were able to locate users/posts within 10 min for half (50%, n = 18) of the 36 studies containing verbatim content. Identifiable posts included content about sensitive health topics. We identified six categories of analytic approaches to using these data: network analysis, utility (i.e., usefulness of Facebook as a tool for surveillance, public health dissemination, or attitudes), associational studies of users' behavior and health outcomes, predictive model development, and two types of content analysis (thematic analysis and sentiment analysis). Associational studies were the most likely to seek IRB review (5/6, 83%), while those of utility (0/4, 0%) and prediction (1/4, 25%) were the least likely to do so. CONCLUSIONS: Stronger guidance on research ethics for using Facebook data, especially the use of personal identifiers, is needed.

Apropriações das mídias na Educação Física: dimensões metodológica, crítica e expressivo-produtiva em questão / Appropriations of media at Physical Education: methodological, critical and expressive-productive dimensions in question / Apropriaciones de medios en Educación Física: dimensiones metodológica, crítica y expresivo-productiva en cuestión

O artigo teve como objetivo compreender as apropriações das mídias pelos professores de Educação Física por meio das dimensões metodológica, crítica e expressivo-produtiva da Mídia-Educação. A etapa empírica envolveu a aplicação de um questionário e a realização de entrevista semiestruturada com professores da Educação Básica da cidade de Goiânia. Constatou-se que as mídias são usadas com um forte caráter instrumental, principalmente no planejamento das aulas. A abordagem crítica e os aspectos éticos e estéticos em relação à criação de conteúdos midiáticos são pouco explorados e sugere a importância de pautar estas questões na formação docente (AU).

This article aim is to understand the appropriations of media by Physical Education teachers by through the methodological, critical and expressive-productive dimensions of media education. It was applied a whole questionnaire conjoined with a semi-structured review to Basic Education teachers of the city of Goiânia. Media are enough used as a strong instrumental role, mainly in class planning. The work highlights that critical approach, as well as ethical and aesthetic aspects concerning media content crafting are not well explored, and ultimately suggests the signification for guiding these issues with respect teaching practice (

Este artículo tiene el objetivo de arrojar luz sobre el incorporación de dichos medios en relación con los docentes de Educación Física a través de un ámbito metodológico-crítico y expresivo-productivo da educación mediática. Se aplicó un cuestionario completo junto con una revisión semiestructurada a los docentes de Educación Básica en la ciudad de Goiânia. Los medios se utilizan suficientemente como un papel instrumental fuerte, principalmente en la planificación de clases. El enfoque crítico, así como los aspectos éticos y estéticos relacionados con la elaboración de contenidos mediáticos, no están bien explorados y, sugiere el significado de orientar estos temas con respeto a la práctica docente (AU).

Learning through the grapevine and the impact of the breadth and depth of social networks.

We study how communication platforms can improve social learning without censoring or fact-checking messages, when they have members who deliberately and/or inadvertently distort information. Message fidelity depends on social network depth (how many times information can be relayed) and breadth (the number of others with whom a typical user shares information). We characterize how the expected number of true minus false messages depends on breadth and depth of the network and the noise structure. Message fidelity can be improved by capping depth or, if that is not possible, limiting breadth, e.g., by capping the number of people to whom someone can forward a given message. Although caps reduce total communication, they increase the fraction of received messages that have traveled shorter distances and have had less opportunity to be altered, thereby increasing the signal-to-noise ratio.

O cumprimento da Lei nº 13168 de 6 de outubro de 2015 por cursos de Odontologia do Sul e Sudeste do Brasil: uma análise dos sítios eletrônicos institucionais / Compliance with Law nº 13168 of October 6, 2015, by Dentistry courses in the South and Southeast of Brazil: an analysis of institutional websites

A Lei nº 13.168, de 6 de outubro de 2015, determina entre outros aspectos, que as Instituições de Ensino Superior (IES) brasileiras tragam em seus sítios eletrônicosoficiaisinformações relativas àmatrizcurricular e corpo docente do curso ofertado. O objetivo deste estudo foi avaliar a prevalência de cumprimento dessa lei em IES que ofertam o curso de Odontologia, tendo como amostra IES das regiões Sudeste e Sul do país. Para isso, as IES foram catalogadasa partir doportal e-MEC do Ministério da Educação, e posteriormentetiveram seus sítios eletrônicos oficiais acessados. Observou-seentão o cumprimento das determinações do artigo, parágrafo, incisos, e alíneas da referida lei. Os dados foram descritos por meio defrequências absolutas e relativas e comparados pelo Teste Exato de Fisher (α=5%). Aplicados os critérios de elegibilidade, 256 IES foram incluídas, sendo 220 IES privadas e 36 públicas. De acordo com os critérios de análise adotados, apenas 3 (1,17%) das IES cumpriram todas as exigências da lei. A disponibilização da lista das disciplinas que compõem a matriz curricular de cada curso foi de 78,1%. Por outro lado, informações relativas ao corpo docente foram disponibilizadas por uma baixa porcentagem de IES, tais como identificação do corpo docente (40,6%), as disciplinas que efetivamente cada docente leciona (13,7%), titulação (30,1%) e tempo de trabalho na IES (8,6%). Do mesmo modo, uma baixa porcentagem foi observada quanto àatualização (11,7%) e data completa da última atualização (14,8%). Em conclusão, a maior parte das IES analisadas não está de acordo com Lei nº 13.168/15, sendo necessário que os coordenadores de curso e gestores estejam atentosà necessidade de adequação dos sítios eletrônicos institucionais (AU).

Law No. 13,168, of October 6, 2015, determines, among other things, that Brazilian Higher Education Institutions (HEIs) bring on their official websites information regarding the curriculum and teaching staff of the course offered. The aim of this study was to assess the prevalence of compliance with this law in HEIs that offer the Dentistry course, using HEIs from the Southeast and South regions of the country as a sample. For this, the HEIs were cataloged on the Ministry of Education's e-MEC portal, and later had their official websites accessed. It was observed whether the HEI portals complied with the provisions of the article, paragraph, items, and paragraphs of the aforementioned law. Data were described using absolute and relative frequencies and compared using Fisher's exact test at a significance level of 5%. After applying the eligibility criteria, 256 HEIs were included, being 220 private HEIs and 36 public. According to the analysis criteria adopted, only 3 (1.17%) of the HEIs complied with all the requirements of the law. The availability of the list of subjects that make up the curriculum of each course was 78.1%. On the other hand, information related to the teaching staff was made available by a low percentage of HEIs, such as identification ofthe teaching staff (40.6%), the subjects that each professor actually teaches (13.7%), titles (30.1 %), and working time at the HEI (8.6%). Likewise, a low percentage was observed regarding the updating of the curriculum (11.7%) and the presence of the complete date of the last update (14.8%). In conclusion, most Brazilian Dentistry HEIs do not comply with Law No. 13.168/15, making it necessary for course coordinators and education managers to pay attention to the need to adapt institutional websites (AU).

Improving fake news classification using dependency grammar.

Fake news is a complex problem that leads to different approaches used to identify them. In our paper, we focus on identifying fake news using its content. The used dataset containing fake and real news was pre-processed using syntactic analysis. Dependency grammar methods were used for the sentences of the dataset and based on them the importance of each word within the sentence was determined. This information about the importance of words in sentences was utilized to create the input vectors for classifications. The paper aims to find out whether it is possible to use the dependency grammar to improve the classification of fake news. We compared these methods with the TfIdf method. The results show that it is possible to use the dependency grammar information with acceptable accuracy for the classification of fake news. An important finding is that the dependency grammar can improve existing techniques. We have improved the traditional TfIdf technique in our experiment.

Social Media Guidelines for Young Plastic Surgeons and Plastic Surgery Training Programs.

SUMMARY: Social media are a powerful tool that creates a unique opportunity for the young plastic surgeon and trainee to share content, brand oneself, educate the public, and develop one's own professional voice early. The majority of all plastic surgery programs and particularly those that are highly ranked have social media opportunities for their residents, yet clear rules to guide implementation of social media programming in residency have remained unspecified. These guidelines and pitfalls can be used to inform a productive and professional entry into plastic surgery social media use for the resident and young plastic surgeon. Details regarding specific platform use to maximize exposure are provided. The core principles of patient safety and privacy, authentic photography, plastic surgery education and advocacy, and professionalism inform these guidelines. Pitfalls include establishment of an online physician-patient relationship, engaging in debate by means of online reviews, providing medical entertainment, and engaging in non-plastic surgery politics. Use of these guidelines will allow the young plastic surgeon and trainee to succeed by means of social media platforms in an ethical and professional manner.

Ageism in COVID-Related Newspaper Coverage: The First Month of a Pandemic.

OBJECTIVES: Media sources have consistently described older adults as a medically vulnerable population during the coronavirus disease 2019 (COVID-19) pandemic, yet a lack of concern over their health and safety has resulted in dismissal and devaluation. This unprecedented situation highlights ongoing societal ageism and its manifestations in public discourse. This analysis asks how national news sources performed explicit and implicit ageism during the first month of the pandemic. METHOD: Using content and critical discourse analysis methods, we analyzed 287 articles concerning older adults and COVID-19 published between March 11 and April 10, 2020, in 4 major U.S.-based newspapers. RESULTS: Findings indicate that while ageism was rarely discussed explicitly, ageist bias was evident in implicit reporting patterns (e.g., frequent use of the term "elderly," portrayals of older adults as "vulnerable"). Infection and death rates and institutionalized care were among the most commonly reported topics, providing a limited portrait of aging during the pandemic. The older "survivor" narrative offers a positive alternative by suggesting exceptional examples of resilience and grit. However, the survivor narrative may also implicitly place blame on those unable to survive or thrive in later life. DISCUSSION: This study provides insight for policy makers, researchers, and practitioners exploring societal perceptions of older adults and how these perceptions are disseminated and maintained by the media.

Anti-intellectualism and the mass public's response to the COVID-19 pandemic.

Anti-intellectualism (the generalized distrust of experts and intellectuals) is an important concept in explaining the public's engagement with advice from scientists and experts. We ask whether it has shaped the mass public's response to coronavirus disease 2019 (COVID-19). We provide evidence of a consistent connection between anti-intellectualism and COVID-19 risk perceptions, social distancing, mask usage, misperceptions and information acquisition using a representative survey of 27,615 Canadians conducted from March to July 2020. We exploit a panel component of our design (N = 4,910) to strongly link anti-intellectualism and within-respondent change in mask usage. Finally, we provide experimental evidence of anti-intellectualism's importance in information search behaviour with two conjoint studies (N ~ 2,500) that show that preferences for COVID-19 news and COVID-19 information from experts dissipate among respondents with higher levels of anti-intellectual sentiment. Anti-intellectualism poses a fundamental challenge in maintaining and increasing public compliance with expert-guided COVID-19 health directives.