Literatura académica sobre el tema "Stockton Public Library (Calif.)"

Currently, e-government is one of the important tools to improve the efficiency of state management and the quality of public services. E-government applications contribute to meeting the requirements of modern governance, such as publicity, transparency, accountability, timeliness of public administration and citizen participation. Therefore, e-government is being developed and applied by various countries in the world including Vietnam. Keywords: E-government, Digital Government, Open Government, Governance, State Governance. References: [1] ADB (2005), Governance: Sound Development Management Governance, tại https://www.adb.org/sites/default/files/institutional-document/32027/govpolicy.pdf, truy cập ngày 18/12/2018.[2] Sabri Boubaker, Duc Khuong Nguyen (editors), Corporate Governance and Corporate Social Responsibility: Emerging Markets Focus, World Scientific Publishing Co Pte Ltd, 2014, tr. 377. Dẫn theo Nguyễn Văn Quân, Nguồn gốc và sự phát triển của quản trị tốt, trong cuốn “Quản trị tốt: Lý luận và thực tiễn”, Vũ Công Giao, Nguyễn Hoàng Anh, Đặng Minh Tuấn, Nguyễn Minh Tuấn (đồng chủ biên), NXB Chính trị Quốc gia, 2017.[3] Michiel Backus., “e-Governance and Developing Countries: Introduction and examples”, Research Report ; No. 3, April, 2001, Xem: https://bibalex.org/baifa/Attachment/Documents/119334.pdf, truy cập ngày 18/12/2018.[4] S. Bhatnagar, “e-government: from vision to implementation: a practical guide with case studies” New Delhi ; Thousand Oaks, Calif. : Sage Publications, 2004.[5] Vũ Công Giao, Nguyễn Hoàng Anh, Đặng Minh Tuấn, Nguyễn Minh Tuấn (đồng chủ biên) “Quản trị tốt: Lý luận và thực tiễn”, NXB Chính trị Quốc gia, 2017.[6] World Bank (2006), Making PRSP Inclusive, tại http://siteresources.worldbank.org/DISABILITY/Resources/280658-1172608138489/MakingPRSPInclusive.pdf, truy cập ngày 18/12/2018.[7] Global Agenda Council on the Future of Government - World Economic Forum (2011), The Future of Government Lessons Learned From Around The World, Xem: http://www3.weforum.org/docs/EU11/WEF_EU11_FutureofGovernment_Report.pdf –[8] Hanna, Nagy., Transforming Government and Building the Information Society: Challenges and Opportunities for the Developing World, Nagy Hanna & Peter T. Knight editors, Springer, NY, 2010.[9] Heeks, R., “iGovernment : Understanding e-Governance for Development”, Working Paper Series : Paper No. 11, Institute for Development Policy and Management, Xem: http://unpan1.un.org/intradoc/groups/public/documents/NISPAcee/UNPAN015484.pdf, truy cập ngày 18/12/2018.[10] Richard Heeks, “Most e-Government-for-Development Projects Fail How Can Risks be Reduced, 2003, Xem: http://unpan1.un.org/intradoc/groups/public/documents/cafrad/unpan011226.pdf, truy cập ngày 18/12/2018.[11] J. Guida, and M. Crow “e-government and e-governance”, in Unwin, T. (ed.), ICT4D: International and Communication Technology for Development, Cambridge University Press 2009. Xem: https://www.itu.int/ITU-D/cyb/app/docs/e-gov_for_dev_countries-report.pdf, truy cập ngày 18/12/2018.[12] Bob Jessop, The State Past, Present, Future, Polity, 2016, tr.166-169, tại http://www.ritsumei.ac.jp/acd/re/k- rsc/hss/book/pdf/vol07_08.pdf[13] S. Joseph. Jr. Nye and D. John (2000), Governance in a globalizing world, Brookings Institution Press.[14] Joseph Stiglitz, “Globalization And The Economic Role Of The State In The New Millennium”, Journal Of Industrial and Corporate Change, 2003.[15] Báo Lao động, Xây dựng chính phủ điện tử, rào cản nào?, xem: https://laodong.vn/thoi-su/xay-dung-chinh-phu-dien-tu-rao-can-nao-631923.ldo, truy cập ngày 18/12/2018.[16] Phạm Tiến Luật, Những thách thức trong xây dựng chính phủ điện tử ở Việt Nam, Tạp chí Quản lý nhà nước, số 264 (1/2018).[17] D. Nute, “Net eases Government Purchasing Process”, The American City & County Journal, 117 (1), 2002; K.A. O’Connell, “Computerizing Government: The Next Generation”, The American City & County Journal, 118 (8), 2003.[18] OECD (2004), Principles of Corporate Governance, tại: http://www.oecd.org/corporate/ca/corporategovernanceprinciples/31557724.pdf, truy cập ngày 18/12/2018.[19] United Nation (2002), World Public sector report Globalization and the State, tại: https://publicadministration.un.org/publications/content/PDFs/E-Library%20Archives/World%20Public%20Sector%20Report%20series/World%20Public%20Sector%20Report.2001.pdf , truy cập ngày 11/11/2018.[20] United Nations Economic and Social Commission for Asia and the Pacific, What is Good Governance?, tại: https://www.unescap.org/sites/default/files/good-governance.pdf ., truy cập ngày 18/12/2018.[21] UNDP (1997), Governance & Sustainable Human Development. A UNDP Policy Document. New York United Nations Development Programme, 1997.[22] Jim Macnamara, The Quadrivium of Online Public Consultation: Policy, Culture, Resources, Technology, Dẫn theo Nguyễn Đức Lam, Quản trị tốt: những chuẩn mực chung, tài liệu đã dẫn. Vũ Công Giao, Nguyễn Hoàng Anh, Đặng Minh Tuấn, Nguyễn Minh Tuấn (đồng chủ biên) “Quản trị tốt: Lý luận và thực tiễn”, NXB Chính trị Quốc gia, 2017.[23] United Nations : Department of economic and Social Affairs, Division for Public Administration and Development Management, “The Global e-Government Survey 2008”, xem: https://publicadministration.un.org/egovkb/portals/egovkb/Documents/un/2008-Survey/unpan028607.pdf, truy cập ngày 18/12/2018.

Amy’s Marathon of Reading continues westward. Her Marathon of Hope project was mentioned in this column before but as it continues to gather momentum and as it relevant to the topic of this special issue, I thought it pertinent to mention it again. From her website: “ Inspired by Terry Fox’s and Rick Hansen’s Canadian journeys, Amy Mathers decided to honour her passion for reading and Canadian teen literature while working around her physical limitations through a Marathon of Books. Realising that Terry Fox could run a kilometre in six minutes during his Marathon of Hope, she figured out that she could read ten pages in the same amount of time. Thus, on her journey, ten pages will represent one kilometre travelled across Canada. Amy will be reading teen fiction books from every province and territory, exploring Canada and promoting Canadian teen authors and books by finishing a book a day for each day of 2014. She will write a review for each book she reads, and invites people to share their thoughts on the books she reads too.” For more information and to see how far Amy’s marathon has taken her so far, go to http://amysmarathonofbooks.ca/Upcoming events and exhibitsKAMLOOPS WRITERS FESTIVAL, Nov. 7-9, 2014, Old Courthouse Cultural Centre. Guest authors include children’s author Lois Peterson.WORKSHOP: Reading Challenges and Options for Young People with Disabilities. Friday, November 14, 2014; 11:30 am to 1:00 pm. REGISTRATION and more information: https://www.microspec.com/tix123/eTic.cfm?code=BOOKFAIR14 International and Canadian experts will discuss reading challenges and options for children and teens with disabilities, with examples from the IBBY Collection of Books for Young People with Disabilities. This outstanding international collection, formerly in Norway and now housed at North York Central Library, encompasses 3,000 books in traditional formats and accessible formats including sign language, tactile, Braille, and Picture Communication Symbols.There are two major opportunities to hear award winning author Kit Pearson in Toronto and Vancouver in the upcoming months. Kit will be presenting “The Sanctuary of Story” for the 8th Annual Sybille Pantazzi Memorial Lecture on Thursday November 13, 8 p.m., in the Community room, Lillian H. Smith branch of the Toronto Public Library.Kit Pearson will also be the guest speaker at A Celebration of Award Winning BC Authors and Illustrators of 2014 at A Wine and Cheese event from 7 – 9 p.m. at January 21, 2015. (Event venue still to be confirmed. Please check www.vclr.ca for updates.) The event celebrates many other BC winners and finalists of the Governor General’s Literary Awards, the BC Book Prizes, the VCLR Information Book Award, and several other important awards.For those of you in the Toronto area be sure to check out the exhibit Lest We Forget: War in Books for Young Readers, September 15 – December 6, 2014, at the Osborne Collection. In commemoration of the 100th anniversary of the beginning of the First World War.Do not forget to Celebrate Freedom to Read Week, February 22-28, 2015, the annual event that encourages Canadians to think about and reaffirm their commitment to intellectual freedom, which is guaranteed them under the Charter of Rights and Freedoms.Serendipity 2015 promises to be a tantalizing affair. An Edgy, Eerie, Exceptional Serendipity 2015 (Saturday March 7, 2015) with Holly Black, Andrew Smith, Mariko Tamaki, Molly Idle, and Kelli Chipponeri will have captivating discussions ranging from haunted dolls and worlds of nightmare, to the raw emotion and exceptional beauty of growing up. The event, a members-only event, includes breakfast, lunch, and snacks. [This may be a very good incentive to become a member!] More information at http://vclr.ca/serendipity-2015/Call for papers and presentationsYALSA is currently seeking program proposals and paper presentations for its 2015 Young Adult Services Symposium, Bringing it All Together: Connecting Libraries, Teens & Communities, to be held Nov. 6-8, 2015, in Portland, Ore. The theme addresses the key role of connection that librarians have for the teens in their community. YALSA invites interested parties to propose 90-minute programs centering on the theme, as well as paper presentations offering new, unpublished research relating to the theme. Applications for all proposals can be found http://www.ala.org/yalsa/yasymposium . Proposals for programs and paper presentations must be completed online by Dec. 1, 2014. Applicants will be notified of their proposals’ status by Feb. 1, 2015.Book Award newsThe 2014 Information Book Award Finalists. The winner and honor title, voted by members of the Children’s Literature Roundtables, will be announced November 17, 2014 in Vancouver.Before the World Was Ready: Stories of Daring Genius in Science by Claire Eamer. Annick Press. Follow Your Money by Kevin Sylvester and Michael Hlinka. Annick Press.Looks Like Daylight: Voices of Indigenous Kids by Deborah Ellis. Groundwood Books. Pay It Forward Kids: Small Acts, Big Change by Nancy Runstedler. Fitzhenry & Whiteside.Pedal It! How Bicycles are Changing the World by Michelle Mulder. Orca Book Publishers.The list of nominees for the 2015 Astrid Lindgren Memorial Award (ALMA) includes 50 first-time nominees among a total of 197 candidates from 61 countries. Canadian nominees include The Canadian Children’s Book Centre (Organisation, nominated by IBBY Canada) and authors Sarah Ellis and Marie-Francine Hébert. Full list available at http://www.alma.se/en/Nominations/Candidates/2015/The winners of the 2014 Governor General’s Literary Award will be announced November 18, 2014. The nominated titles for children’s literature (English text) are:Jonathan Auxier, (Pittsburgh, Pa.) – The Night Gardener (Penguin Canada)Lesley Choyce, (East Laurencetown, N.S.) – Jeremy Stone (Red Deer Press)Rachel and Sean Qitsualik-Tinsley – Skraelings (Inhabit Media Inc.)Raziel Reid, (Vancouver) – When Everything Feels like the Movies (Arsenal Pulp Press)Mariko Tamaki, (Oakland, Calif.) – This One Summer (Groundwood Books/House of Anansi Press)Nominations for illustration in (English) children’s literature are:Marie-Louise Gay, (Montreal) – Any Questions?, text by Marie-Louise Gay (Groundwood Books/House of Anansi Press)Qin Leng, (Toronto) – Hana Hashimoto, Sixth Violin, text by Chieri Uegaki (Kids Can Press)Renata Liwska, (Calgary) – Once Upon a Memory, text by Nina Laden (Little, Brown and Company)Julie Morstad, (Vancouver) – Julia, Child, text by Kyo Maclear (Tundra Books)Jillian Tamaki, (Brooklyn, N.Y.) – This One Summer, text by Mariko Tamaki (Groundwood Books/House of Anansi Press)Nominations for (French) children’s literature (text) are:Linda Amyot, (St-Charles-Borromée, Que.) – Le jardin d'Amsterdam (Leméac Éditeur)India Desjardins, (Montreal) – Le Noël de Marguerite (Les Éditions de la Pastèque)Patrick Isabelle, (Montreal) – Eux (Leméac Éditeur)Jean-François Sénéchal, (Saint-Lambert, Que.) – Feu (Leméac Éditeur)Mélanie Tellier, (Montreal) – Fiona (Marchand de feuilles)Nominations for (French) children’s literature (illustration):Pascal Blanchet, (Trois-Rivières, Que.) – Le Noël de Marguerite, text by India Desjardins (Les Éditions de la Pastèque)Marianne Dubuc, (Montreal) – Le lion et l'oiseau, text by Marianne Dubuc (Les Éditions de la Pastèque)Manon Gauthier, (Montreal) – Grand-mère, elle et moi…, text by Yves Nadon (Éditions Les 400 coups)Isabelle Malenfant, (Montreal) – Pablo trouve un trésor, text by Andrée Poulin (Éditions Les 400 coups)Pierre Pratt, (Montreal) – Gustave, text by Rémy Simard (Les Éditions de la Pastèque)Online resources:Welcome to the Teachers' Book Bank! This database of Canadian historical fiction and non-fiction books is brought to you by the Canadian Children's Book Centre with Historica Canada, and funded by the Government of Canada. These titles may be used by teachers to introduce topics and themes in Canadian history and by students carrying out research projects. Many of the books also offer opportunities for cross-curricular connections in language arts, geography, the arts, science and other subjects. In most cases, publishers have indicated specific grade levels and age ranges to guide selection. For lesson plans to go with these books, visit Historica Canada's Canadian Encyclopedia. http://bookbank.bookcentre.ca/index.php?r=site/CCBCChairing Stories on Facebook Created in response to requests from former students of Gail de Vos’s online courses on Canadian Children’s Literature and Graphic Novels and comic books, this page celebrates books, their creators, and their audiences. Postings for current students too! Check it out at https://www.facebook.com/ChairingStoriesPresented by Gail de VosGail de Vos, an adjunct instructor, teaches courses on Canadian children's literature, Young Adult Literature and Comic Books and Graphic Novels at the School of Library and Information Studies for the University of Alberta and is the author of nine books on storytelling and folklore. She is a professional storyteller and has taught the storytelling course at SLIS for over two decades

Introduction In this article, we hypothesise how mainstream media coverage can promote the spread of disinformation about Covid-19. Mainstream media are often discussed as opposed to disinformation (Glasser; Benkler et al.). While the disinformation phenomenon is related to the intentional production and spread of misleading and false information to influence public opinion (Fallis; Benkler et al.), mainstream media news is expected to be based on facts and investigation and focussed on values such as authenticity, accountability, and autonomy (Hayes et al.). However, journalists might contribute to the spread of disinformation when they skip some stage of information processing and reproduce false or misleading information (Himma-Kadakas). Besides, even when the purpose of the news is to correct disinformation, media coverage might contribute to its dissemination by amplifying it (Tsfati et al.). This could be particularly problematic in the context of social media, as users often just read headlines while scrolling through their timelines (Newman et al.; Ofcom). Thus, some users might share news from the mainstream media to legitimate disinformation about Covid-19. The pandemic creates a delicate context, as journalists are often pressured to produce more information and, therefore, are more susceptible to errors. In this research, we focussed on the hypothesis that legitimate news can contribute to the spread of disinformation on social media through headlines that reinforce disinformation discourses, even though the actual piece may frame the story differently. The research questions that guide this research are: are URLs with headlines that reinforce disinformation discourses and other mainstream media links shared into the same Facebook groups? Are the headlines that support disinformation discourses shared by Facebook users to reinforce disinformation narratives? As a case study, we look at the Brazilian disinformation context on Covid-19. The discussion about the disease in the country has been highly polarised and politically framed, often with government agents and scientists disputing the truth about facts on the disease (Araújo and Oliveira; Recuero and Soares; Recuero et al.). Particularly, the social media ecosystem seems to play an important role in these disputes, as Brazilian President Jair Bolsonaro and his supporters use it as a key channel to spread disinformation about the virus (Lisboa et al.; Soares et al.). We use data from public groups on Facebook collected through CrowdTangle and a combination of social network analysis and content analysis to analyse the spread and the content of URLs and posts. Theoretical Background Disinformation has been central to the Covid-19 “infodemic”, created by the overabundance of information about the pandemic, which makes it hard for people to find reliable guidance and exacerbates the outbreak (Tangcharoensathien et al.). We consider disinformation as distorted, manipulated, or false information intentionally created to mislead someone (Fallis; Benkler et al.). Disinformation is often used to strengthen radical political ideologies (Benkler et al.). Around the world, political actors politically framed the discussion about the pandemic, which created a polarised public debate about Covid-19 (Allcott et al., Gruzd and Mai; Recuero and Soares). On social media, contexts of polarisation between two different political views often present opposed narratives about the same fact that dispute public attention (Soares et al.). This polarisation creates a suitable environment for disinformation to thrive (Benkler et al.) The polarised discussions are often associated with the idea of “bubbles”, as the different political groups tend to share and legitimate only discourses that are aligned with the group's ideological views. Consequently, these groups might turn into ideological bubbles (Pariser). In these cases, content shared within one group is not shared within the other and vice versa. Pariser argues that users within the bubbles are exposed exclusively to content with which they tend to agree. However, research has shown that Pariser’s concept of bubbles has limitations (Bruns), as most social media users are exposed to a variety of sources of information (Guess et al.). Nevertheless, polarisation might lead to different media diets and disinformation consumption (Benkler et al.). That is, users would have contact with different types of information, but they would choose to share certain content over others because of their political alignment (Bruns). Therefore, we understand that bubbles are created by the action of social media users who give preference to circulate (through retweets, likes, comments, or shares) content that supports their political views, including disinformation (Recuero et al.). Thus, bubbles are ephemeral structures (created by users’ actions in the context of a particular political discussion) with permeable boundaries (users are exposed to content from the outside) in discussions on social media. This type of ephemeral bubble might use disinformation as a tool to create a unique discourse that supports its views. However, it does not mean that actors within a “disinformation bubble” do not have access to other content, such as the news from the mainstream media. It means that the group acts to discredit and to overlap this content with an “alternative” story (Larsson). In addition, the mainstream media might disseminate false or inaccurate disinformation (Tsfati et al.). Particularly, we focus on inaccurate headlines that reinforce disinformation narratives, as social media users often only read news headlines (Newman et al.; Ofcom). This is especially problematic because a large number of social media users are exposed to mainstream media content, while exposure to disinformation websites is heavily concentrated on only a few users (Guess et al.; Tsfati et al.). Therefore, when the mainstream media disseminate disinformation, it is more likely that a larger number of social media users will be exposed to this content and share it into ideological bubbles. Based on this discussion, we aim to understand how the mainstream media contribute to the spread of disinformation discourses about Covid-19. Methods This study is about how mainstream media coverage might contribute to the spread of disinformation about Covid-19 on Facebook. We propose two hypotheses, as follows: H1: When mainstream media headlines frame the information in a way that reinforces the disinformation narrative, the links go into a “disinformation bubble”. H2: In these cases, Facebook users might use mainstream media coverage to legitimate disinformation narratives. We selected three case studies based on events that created both political debate and high media coverage in Brazil. We chose them based on the hypothesis that part of the mainstream media links could have produced headlines that support disinformation discourses, as the political debate was high. The events are: On 24 March 2020, Brazilian President Jair Bolsonaro made a public pronouncement on live television. In the week before the pronouncement, Brazilian governors decided to follow World Health Organisation (WHO) protocols and closed non-essential business. In his speech, Bolsonaro criticised social distancing measures. The mainstream media reproduced some of his claims and claims from other public personalities, such as entrepreneurs who also said the protocols would harm the economy. On 8 June 2020, a WHO official said that it “seems to be rare that an asymptomatic person transmits [Covid-19] onward to a secondary individual”. Part of the mainstream media reproduced the claim out of context, which could promote the misperception that both asymptomatic and pre-symptomatic persons (early stages of an illness, before the first symptoms) do not transmit Covid-19 at all. On 9 November 2020, Brazil’s national sanitary watchdog Anvisa reported that they had halted the clinical studies on the CoronaVac vaccine, developed by the Chinese company Sinovac. Bolsonaro often criticised CoronaVac because it was being produced in partnership with São Paulo’s Butantan Institute and became the subject of a political dispute between Bolsonaro and the Governor of São Paulo, João Dória. Bolsonaro said the halt of the CoronaVac trial was "another victory for Jair Bolsonaro". Anvisa halted the trail after a "severe adverse event". The mainstream media rapidly reverberated the decision. Later, it was revealed that the incident was a death that had nothing to do with the vaccine. Before we created our final dataset that includes links from the three events together, we explored the most shared URLs in each event. We used keywords to collect posts shared in the public groups monitored by CrowdTangle, a tool owned by Facebook that tracks publicly available posts on the platform. We collected posts in a timeframe of three days for each event to prevent the collection of links unrelated to the cases. We collected only posts containing URLs. Table 1 summarises the data collected. Table 1: Data collected Dates March 24-26 2020 June 8-10 2020 November 9-11 2020 Keywords “Covid-19” or “coronavirus” and “isolation” or “economy” “Covid-19” or “coronavirus” and “asymptomatic” “vaccine” and “Anvisa” or “CoronaVac” Number of posts 4780 2060 3273 From this original dataset, we selected the 60 most shared links from each period (n=180). We then filtered for those which sources were mainstream media outlets (n=74). We used content analysis (Krippendorff) to observe which of these URLs headlines could reinforce disinformation narratives (two independent coders, Krippendorff’s Alpha = 0.76). We focussed on headlines because when these links are shared on Facebook, often it is the headline that appears to other users. We considered that a headlined reinforced disinformation discourses only when it was flagged by both coders (n=21 – some examples are provided in Table 3 in the Results section). Table 2 provides a breakdown of this analysis. Table 2: Content analysis Event Mainstream media links Headlines that support disinformation discourses Number of links Number of posts Economy and quarantine 24 7 112 Asymptomatic 22 7 163 Vaccine trial 28 7 120 Total 74 21 395 As the number of posts that shared URLs with headlines that supported disinformation was low (n=395), we conducted another CrowdTangle search to create our final dataset. We used a sample of the links we classified to create a “balanced” dataset. Out of the 21 links with headlines that reinforced disinformation, we collected the 10 most shared in public groups monitored by CrowdTangle (this time, without any particular timeframe) (n=1346 posts). In addition, we created a “control group” with the 10 most shared links that neither of the coders considered could reinforce disinformation (n=1416 posts). The purpose of the “control group” was to identify which Facebook groups tend to share mainstream media links without headlines that reinforce disinformation narratives. Therefore, our final dataset comprises 20 links and 2762 posts. We then used social network analysis (Wasserman and Faust) to map the spread of the 20 links. We created a bipartite network, in which nodes are (1) Facebook groups and (2) URLs; and edges represent when a post within a group includes a URL from our dataset. We applied a modularity metric (Blondel et al.) to identify clusters. The modularity metric allows us to identify “communities” that share the same or similar links in the network map. Thus, it helped us to identify if there was a “bubble” that only shares the links with headlines that support disinformation (H1). To understand if the disinformation was supporting a larger narrative shared by the groups, we explored the political alignments of each cluster (H2). We used Textometrica (Lindgreen and Palm) to create word clouds with the most frequent words in the names of the cluster groups (at least five mentions) and their connections. Finally, we also analysed the posts that shared each of the 10 links with headlines that reinforced disinformation. This also helped us to identify how the mainstream media links could legitimate disinformation narratives (H2). Out of the 1346 posts, only 373 included some message (the other 973 posts only shared the link). We used content analysis to see if these posts reinforced the disinformation (two independent coders – Krippendorff’s Alpha = 0.723). There were disagreements in the categorisation of 27 posts. The two coders reviewed and discussed the classification of these posts to reach an agreement. Results Bubbles of information In the graph (Figure 1), red nodes are links with headlines that support disinformation discourses, blue nodes are the other mainstream media links, and black nodes are Facebook groups. Our first finding is that groups that shared headlines that support disinformation rarely shared the other mainstream media links. Out of the 1623 groups in the network, only 174 (10.7%) shared both a headline that supports disinformation discourse, and another mainstream media link; 712 groups (43.8%) only shared headlines that support disinformation; and 739 groups (45.5%) only shared other links from the mainstream media. Therefore, users’ actions created two bubbles of information. Figure 1: Network graph The modularity metric confirmed this tendency of two “bubbles” in the network (Figure 2). The purple cluster includes seven URLs with headlines that support disinformation discourse. The green cluster includes three headlines that support disinformation discourse and the other 10 links from the mainstream media. This result partially supports H1: When mainstream media headlines frame the information in a way that reinforces the disinformation narrative, the links go into a “disinformation bubble”. As we identified, most of the headlines that support disinformation discourse went into a separate “bubble”, as users within the groups of this bubble did not share the other links from the mainstream media. Figure 2: Network graph with modularity This result shows that users’ actions boost the creation of bubbles (Bakshy et al.), as they choose to share one type of content over the other. The mainstream media are the source of all the URLs we analysed. However, users from the purple cluster chose to share only links with headlines that supported disinformation discourses. This result is also related to the political framing of the discussions, as we explore below. Disinformation and Political Discourse We used word clouds (Lindgreen and Palm) to analyse the Facebook groups’ names to explore the ideological affiliation of the bubbles. The purple bubble is strongly related to Bolsonaro and his discourse (Figure 3). Bolsonaro is the most frequent word. Other prevalent words are Brazil, patriots (both related to his nationalist discourse), right-wing, conservative, military (three words related to his conservative discourse and his support of the military dictatorship that ruled Brazil from 1964 to 1985), President, support, and Alliance [for Brazil] (the name of his party). Some of the most active groups within the purple bubble are “Alliance for Brazil”, “Bolsonaro 2022 [next presidential election]”, “Bolsonaro’s nation 2022”, and “I am right-wing with pride”. Figure 3: Purple cluster word cloud Bolsonaro is also a central word in the green cluster word cloud (Figure 4). However, it is connected to other words such as “against” and “out”, as many groups are anti-Bolsonaro. Furthermore, words such as left-wing, Workers’ Party (centre-left party), Lula and Dilma Rousseff (two Workers’ Party ex-presidents) show another ideological alignment in general. In addition, there are many local groups (related to locations such as Rio de Janeiro, São Paulo, Rio Grande do Sul, Minas Gerais, and others), and groups to share news (news, newspaper, radio, portal). “We are 70 per cent [anti-Bolsonaro movement]”, “Union of the Left”, “Lula president”, and “Anti-Bolsonaro” are some of the most active groups within the green cluster. Figure 4: Green cluster word cloud Then, we analysed how users shared the mainstream media links with headlines that support disinformation discourses. In total, we found that 81.8% of the messages in the posts that shared these links also reproduced disinformation narratives. The frequency was higher (86.2%) when considering only posts that shared one of the seven links from the purple cluster (based on the modularity metric). Consequently, it was lower (64%) in the messages that shared one of the other three links. The messages often showed support for Bolsonaro; criticised other political and health authorities (the WHO, São Paulo Governor João Dória, and others), China, and the “leftists” (all opposition to Bolsonaro); claimed that quarantine and social distancing measures were unnecessary; and framed vaccines as dangerous. We provide some examples of headlines and posts in Table 3 (we selected the most-shared URL for each event to illustrate). This result supports H2 as we found that users shared mainstream media headlines that reinforce disinformation discourse to legitimate the disinformation narrative; and that it was more prevalent in the purple bubble. Table 3: Examples of headlines and posts Headline Post "Unemployment is a crisis much worse than coronavirus", says Bolsonaro Go to social media to support the President. Unemployment kills. More than any virus... hunger, depression, despair and everything UNEMPLOYMENT, THE DEPUTIES CHAMBER, THE SENATE AND THE SUPREME COURT KILL MORE THAN COVID19 Asymptomatic patients do not boost coronavirus, says WHO QUARANTINE IS FAKE #StayHome, the lie of the century! THIS GOES TO THE PUPPETS OF THE COMMUNIST PARTIES THE AND FUNERARY MEDIA Anvisa halts Coronavac vaccine trial after "serious adverse event" [The event] is adverse and serious, so the vaccine killed the person by covid And Doria [Governor of São Paulo and political adversary of Bolsonaro] wants to force you to take this shit This result shows that mainstream media headlines that support disinformation narratives may be used to reinforce disinformation discourses when shared on Facebook, making journalists potential agents of disinformation (Himma-Kadakas; Tsfati et al.). In particular, the credibility of mainstream news is used to support an opposing discourse, that is, a disinformation discourse. This is especially problematic in the context of Covid-19 because the mainstream media end up fuelling the infodemic (Tangcharoensathien et al.) by sharing inaccurate information or reverberating false claims from political actors. Conclusion In this article, we analysed how the mainstream media contribute to the spread of disinformation about Covid-19. In particular, we looked at how links from the mainstream media with headlines that support disinformation discourse spread on Facebook, compared to other links from the mainstream media. Two research questions guided this study: Are URLs with headlines that reinforce disinformation discourses and other mainstream media links shared into the same Facebook groups? Are the headlines that support disinformation discourses shared by Facebook users to reinforce disinformation narratives? We identified that (1) some Facebook groups only shared links with headlines that support disinformation narratives. This created a “disinformation bubble”. In this bubble, (2) Facebook users shared mainstream media links to reinforce disinformation – in particular, pro-Bolsonaro disinformation, as many of these groups had a pro-Bolsonaro alignment. 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