Mainstream Platforms Research Articles

The Common Cold

This paper models a new approach to theorizing topics via music informatics. Our case study for topic is winter as it appears in video game music. Like opera or oratorio, video game music leaves little ambiguity as to what the music ought to signify. Video games commonly have an icy or snowy area, complete with cold-weather creatures and landscapes as well as new game mechanics and music for the player to encounter. Our dataset has over 160 examples of such music, representing games on all mainstream platforms (Nintendo, PlayStation, computer, etc.) and spanning the years 1987–2020. Each example is tagged with its musical features. We define five core characteristics of the winter topic: heavy reverb, arpeggiated textures, metallic percussion instruments, plucked string instruments, and omission of membranophones. We also situate winter as a topic related to Christmas, ’80s music, and the waltz. Finally, we explore Nintendo’s idiosyncratic approach to winter music. Our study finds that instrumentation—particularly percussion—and audio technology are key considerations in establishing the winter topic in video game music. More broadly, we demonstrate the potential of computational musicology to augment and complement traditional approaches to topic theory, whether in relation to video game music or any other repertoire.

Performance comparison of integrated optical switching delay lines on three typical photonic integration pilot lines

Integrated optical switching delay line (OSDL) chip, which is composed of optical switches cascaded with optical waveguides of different lengths, has the merits of ultra-wide delay bandwidth, very high delay accuracy and easy controlling. As one of the key components in microwave photonic beamforming system, OSDLs have drawn great attentions and various integrated OSDL chips have been demonstrated. Among them, the SOI (silicon-on-insulator) and Si3N4 (silicon nitride) are the most popular platforms to fabricate OSDL chips due to their CMOS compatibilities. Nevertheless, the performances and characteristics of the OSDL chips fabricated on the three mainstream platforms have not been compared, which make it difficult to fair evaluate different technologies, which can provide useful guidance for real OSDL applications. To this end, we have designed, fabricated and packaged three OSDL chips based on SOI (The waveguide core thickness is 220 nm and 3 µm respectively) and Si3N4 (double strip silicon nitride waveguide) on three photonic integration pilot lines successively. The performances of the fabricated OSDL chips were investigated and compared comprehensively, including the power consumption, switching time and fiber to fiber insertion loss. Then, the delay times of the three OSDLs were measured, which agree with our design very well. Finally, some discussions and future performance improvement methods of these OSDL chips are given.

COVID-Related Misinformation Migration to BitChute and Odysee

The overwhelming amount of information and misinformation on social media platforms has created a new role that these platforms are inclined to take on, that of the Internet custodian. Mainstream platforms, such as Facebook, Twitter and YouTube, are under tremendous public and political pressure to combat disinformation and remove harmful content. Meanwhile, smaller platforms, such as BitChute and Odysee, have emerged and provide fertile ground for disinformation as a result of their low content-moderation policy. In this study, we analyze the phenomenon of removed content migration from YouTube to BitChute and Odysee. In particular, starting from a list of COVID-related videos removed from YouTube due to violating its misinformation policy, we find that ∼15% (1114 videos) of them migrated to the two low content-moderation platforms under study. This amounts to 4096 videos on BitChute and 1810 on Odysee. We present an analysis of this video dataset, revealing characteristics of misinformation dissemination similar to those on YouTube and other mainstream social media platforms. The BitChute–Odysee COVID-related dataset is publicly available for research purposes on misinformation analysis.

Poe in Cyberspace: Web 1, 2, 3 . . .

Poe in Cyberspace: Web 1, 2, 3 . . .

Quadratic Pose Estimation Problems: Globally Optimal Solutions, Solvability/Observability Analysis, and Uncertainty Description

Pose estimation problems are fundamental in robotics. Most of these problems are challenging due to the nonconvex nature. This also sets up an obstacle for uncertainty description that is essential for pose integration and quality control. In this article, we show that a large class of related problems can be categorized as the quadratic pose estimation problems (QPEPs) and we propose a general quaternion-based mathematical model to unify these problems. To solve the nonconvex QPEPs, a Gröbner-basis method is investigated to derive their globally optimal and robust solutions. Furthermore, we develop the rules for characterizing the solvability and observability of these solutions. In addition, the uncertainty description, i.e., covariance matrix, as an important piece of information in robotic state estimation frameworks, is analyzed in detail. Theoretical results show that the covariance can be estimated via online optimization, in an efficient and unbiased manner. In this way, both the solution and covariance are guaranteed to be globally optimal. Through simulations and experiments, we show that the proposed QPEP-based solver is not only accurate, robust, and efficient but outperforms the representatives for covariance estimation. The designed algorithms are also assembled as a C++/MATLAB/Octave/ROS library, while these developed interfaces are built for main stream platforms and simultaneous localization and mapping schemes.

Covid-19 Protesters and the Far Right on Telegram: Co-Conspirators or Accidental Bedfellows?

The COVID-19 pandemic led to the creation of a new protest movement, positioned against government lockdowns, mandatory vaccines, and related measures. Efforts to control misinformation by digital platforms resulted in take downs of key accounts and posts. This led some of these protest groups to migrate to platforms with less stringent content moderation policies, such as Telegram. Telegram has also been one of the destinations of the far right, whose deplatforming from mainstream platforms began a few years ago. Given the co-existence of these two movements on Telegram, the article examines their connections. Empirically, the article focused on Irish Telegram groups and channels, identifying relevant protest movements and collecting their posts. Using computational social science methods, we examine whether far-right terms and discourses are present and how this varies across different clusters of Telegram Covid-19 protest groups. In addition, we examine which actors are posting far-right content and what kind of roles they play in the network of Telegram groups. The findings indicate the presence of far-right discourses among the COVID-19 groups. However, the existence of these groups was not solely driven by the extreme right, and the incidence of far-right discourses was not equal across all COVID-19 protest groups. We interpret these findings under the prism of the mediation opportunity structure: while the far right appears to have taken advantage of the network opportunity structure afforded by deplatforming and the migration to Telegram, it did not succeed in diffusing its ideas widely among the COVID-19 protest groups in the Irish Telegram.

Technology gap and other tensions in social support and legal procedures: stakeholders’ perceptions of online violence against women during the Covid-19 pandemic

As the Covid-19 pandemic intensified the digitisation of everyday lives and violent behaviours on many mainstream platforms, online violence against women raised renewed concerns. Across the literature, there has been an emphasis on survivors’ experiences and actions to cope with technology-facilitated abuse. Still, little is known about how people perceive the nature, the prevalence, and the impacts of harmful online behaviours and the appropriate social and institutional responses to tackle them. This article aims to help fill this gap. It presents a qualitative study on stakeholders’ perceptions conducted under the frame of a broader project which addresses the prevalence, nature and impact of online violence against women during the Covid-19 pandemic. Empirically, it draws on semi-structured interviews with Portuguese activists, police and law enforcement agents and different public and private service sector providers to explore perspectives on preventing, policing and coping with online violence. The findings expose several socio-technical challenges that prevent effective protection measures for victims and punitive consequences for perpetrators. They also suggest tensions in negotiating digital technology’s role in social support and legal procedures.

Politicization and Radicalization of Discourses in the Alt-Tech Ecosystem: A Case Study on Gab Social

With the increasing popularity of some alternative social media platforms, the flow of information has to some extent shifted from the periphery to the core, where problematic discourses are produced, reproduced, and amplified in the alternative ecosystem, to later find their way into mainstream platforms. The non- or less-moderated nature of some alternative platforms provides a suitable space for politicization and radicalization of discourses. In this article, we use a case study of conversations about vaccination on Gab Social—an alternative platform often conceptualized as a far-right platform—to examine this radicalization process through a mixed-methods analysis of over 68,000 vaccination-related posts from before the COVID-19 pandemic until August 2021. The article shows that while antagonistic and conspiratorial thinking was an element of vaccination discourses on Gab even before the pandemic, such conversations became gradually politicized, and expanded far beyond the medical discourse and entered the domain of organizational politics.

Deplatformization, platform governance and global geopolitics: Interview with José van Dijck

In this interview, José van Dijck distinguishes the concept of deplatformization from deplatforming and platformization. It describes the phenomena of the systematic pushing back of controversial platforms and their communities to the edge of the platform ecosystem, dominated by mainstream platforms (such as Google, Apple, Facebook, Amazon, and Microsoft). Deplatformization further demonstrates the hierarchical power relations within the global platform ecosystem and the complexity of platform governability. From the European perspective, van Dijck argues that public values and public institutions should play more active role in platform governance. The recent Russia–Ukraine war also indicates the vulnerability brought by such co- and inter-dependence on American platforms.

The Use of Discord Servers to Buy and Sell Drugs

The focus of current research on social media drug markets is the use of mainstream platforms such as Facebook, Snapchat and Instagram. No research currently exists examining how lesser-known social media platforms may facilitate online drug supply. This paper presents the first analysis of the use of the social media platform Discord to buy and sell illegal drugs. The study utilizes observational data and qualitative interviews with Discord drug market participants in New Zealand, including sellers and a drug server administrator ( n = 12). Our findings demonstrate that the Discord platform, which was initially established for gaming, is also being used to facilitate drug transactions. Discord is used to establish local drug selling groups called “servers,” which can be joined by accessing an “invite-link.” The advantages of Discord drug servers cited by interviewees included competitive prices and the ability to greatly expand local seller and customer bases beyond pre-existing personal networks. However, accessibility, server size and management varied considerably between drug servers, giving rise to a range of issues and concerns. We use drug market typologies based on theory of “open” and “closed” markets to understand how “lower tier” and “higher tier” Discord drug servers provided different buying and selling environments. “Lower tier” drug servers were generally characterized by greater ease of entry, larger size, higher rates of opportunism among participants and variable server management. Conversely, “higher tier” drug servers typically involved tighter market entry controls, more active server management and were generally smaller in size. The emergence of Discord drug servers illustrates how the evolution of social media platforms presents their users with new spaces that can be adapted to function as drug markets and the tensions that may emerge during the process of learning to buy and sell in a new social media space.

“Business Inquiries are Welcome”: Sex Influencers and the Platformization of Non-normative Media on Twitter

By attending to the case of queer men’s sexual use of Twitter in China, this article analyzes how mainstream platforms provide underrepresented groups with unique opportunities in the erotic economy. Drawing on in-depth interviews with fourteen queer male “sex influencers”—people who capitalize on their erotic practices on Twitter and other platforms for economic and social perks—and a three-month digital ethnography, we probe how Twitter shapes sex media production in China and opens up multifarious modes of monetization. We suggest that Chinese queer sex influencers’ monetization practices not only construct vibrant sexual cultures, but also incentivize heightened cross-platform mobility, which serves as a strategy for coping with China’s precarious legal environment. Consequently, there has been a convergence of domestic and transnational platforms, which we argue showcases the vitality and creativity of Chinese non-normative media production and consumption in a globalized and platformized age.

Hybrid Entanglement between Optical Discrete Polarizations and Continuous Quadrature Variables

By coherently combining advantages while largely avoiding limitations of two mainstream platforms, optical hybrid entanglement involving both discrete and continuous variables has recently garnered widespread attention and emerged as a promising idea for building heterogenous quantum networks. In contrast to previous results, here we propose a new scheme to remotely generate hybrid entanglement between discrete polarization and continuous quadrature optical qubits heralded by two-photon Bell-state measurement. As a novel nonclassical light resource, we further use it to discuss two examples of ways—entanglement swapping and quantum teleportation—in which quantum information processing and communications could make use of this hybrid technique.

The Changes in the Name of Variety Shows that Introduced into China from South Korea: From a Linguistics Perspective

By comparing the names of South Korean programs introduced in mainland China from 2015 to 2020 on the four mainstream platforms with the original programs, the linguistic characteristics are summarized in the article: the phonetics tend to be four-syllables and five-syllables; The range of vocabulary is relatively small; the proportion of Chinese programs using sentences as names is higher, but the two countries’ programs still tend to use words as program names.

Scope, Structure, Aspects of Antigypsyist Hate Speech Online

This article aims to provide the relevant parameters of the phenomena of antigypsyism, online hate speech, and their connection. The parameters serve as background for finding out about the trends in online hate speech directed at the Roma community, the most important concepts and tropes regarding antigypsyism, and the relevant trends in antigypsyist online hate speech. The article will focus on the European Union context because it provides a comparative political and legal framework and possibilities of joint activities and policies to tackle Roma discrimination. By combining scholarly resources and governmental reports, monitoring and reporting collected through nongovernmental organizations, it is concluded that the phenomenon of online antigypsyism is getting stronger. It mirrors offline hate speech and is relatively poorly monitored. It is spread via all mainstream social media platforms whose record on its removal tends to oscillate. A brief section is dedicated to intersectional aspects of antigypsyist hate speech whose iterations in the digital space are under-researched.

Do Platform Migrations Compromise Content Moderation? Evidence from r/The_Donald and r/Incels

When toxic online communities on mainstream platforms face moderation measures, such as bans, they may migrate to other platforms with laxer policies or set up their own dedicated websites. Previous work suggests that within mainstream platforms, community-level moderation is effective in mitigating the harm caused by the moderated communities. It is, however, unclear whether these results also hold when considering the broader Web ecosystem. Do toxic communities continue to grow in terms of their user base and activity on the new platforms? Do their members become more toxic and ideologically radicalized? In this paper, we report the results of a large-scale observational study of how problematic online communities progress following community-level moderation measures. We analyze data from r/The_Donald and r/Incels, two communities that were banned from Reddit and subsequently migrated to their own standalone websites. Our results suggest that, in both cases, moderation measures significantly decreased posting activity on the new platform, reducing the number of posts, active users, and newcomers. In spite of that, users in one of the studied communities (r/The_Donald) showed increases in signals associated with toxicity and radicalization, which justifies concerns that the reduction in activity may come at the expense of a more toxic and radical community. Overall, our results paint a nuanced portrait of the consequences of community-level moderation and can inform their design and deployment.

Recent Progress in Skin‐on‐a‐Chip Platforms

AbstractAs the largest organ of the body, the skin acts as a physical barrier for preventing excessive water loss and infection, and the host of many cosmetic and pharmaceutical products. Currently, two‐dimensional (2D) cell culture and animal models are extensively used as mainstream platforms to understand skin biology and assess therapeutic drug efficacy. However, 2D cell culture model fails to recapitulate the intricate interactions between cells and the extracellular matrix. The metabolic state of 2D‐cultured cells is typically similar, unlike the physiological condition in the body. Also, there is a growing ethical concern over the use of animal studies. Significant advances in microfluidics and tissue engineering have led to the development of three‐dimensional (3D) skin‐on‐a‐chip (SOC) technology, which offers a cost‐effective alternative to conventional preclinical models for the validation and testing of pharmaceutical and cosmetic products. This review discusses the recent developments in the design of various SOCs, their fabrication strategies and methods for introducing skill cells to the chip, and their respective biomedical applications. Finally, an outlook on current applications, challenges, and future research direction in this field is provided.

Knowledge, Attitude and Practices of University students towards Antibiotic Use and Resistance: Questionnaire Based Assessment

Antibiotic resistance is a serious health crisis all over the world and students of biological sciences should have proper awareness to combat the problem. This study aims to assess the knowledge, attitude and practices (KAP) towards antibiotic use and resistance among university students of biological sciences in Pakistan. A descriptive cross-sectional study was conducted amongst 826 students of biological sciences programs from eight major Pakistani universities during September-November 2020. A self-administered online questionnaire was developed which consisted of four dimensions: sociodemographic characteristics (3 questions) and assessment of the knowledge, attitude and practices with 13, 6 and 11 questions, respectively. Association of KAP scores with sociodemographic characteristics was analyzed by nonparametric analysis i.e., Mann-Whitney U and Kruskal-Wallis H test (p-value < 0.05). The sample comprised more females (82.9%) than males while most of the respondents belonged to 21-23 years and enrolled in the master’s degree. The overall knowledge score (correct answer) was 74.7% which was significantly associated with gender, age and degree. The positive attitude score (87.9%) was significantly higher in >23 years age group. Around 75% of the surveyed students had positive practices. The scores were observed significantly higher in females, 21-23 years age group and doctoral students. The study provides baseline evidence about the knowledge, attitudes and practices regarding antibiotic use and resistance among biology students. Overall, good positive attitude was depicted by participants however level of knowledge and positive practices was found lower and declared as moderate. Academic interventions such as lectures, courses, seminars and workshops on antibiotic use, along with establishing open-access antibiotic-resistance learning sites and use of mainstream and social media platforms, etc., are needed to improve the awareness and practices of university students of biological sciences with regards to the rational use of antibiotics.

Deplatforming sexual speech in the age of FOSTA/SESTA

ABSTRACT The 2018 US anti-sex trafficking laws Allow States and Victims to Fight Online Sex Trafficking Act (FOSTA) and Stop Enabling Sex Traffickers Act (SESTA) were intended to limit the use of online communication platforms as illegal sexual commerce hubs. Several years later, sex trafficking prosecutions have plummeted, and US law enforcement agencies lament the loss of internet sites like Backpage where they previously identified victims. Instead, a range of serious consequences like the diminishment of global sex workers’ rights and the chilling of sexual speech abound. FOSTA/SESTA are analyzed as part of the deplatforming of sex, and as having emboldened technology corporations to make sweeping changes to the sexual content that can exist on mainstream platforms like Google. Digital platforms are central to sexuality, and thus we must articulate and defend our rights against government intrusion and overreaching corporate content moderation. Citizens deserve to pursue consensual sexual lives and protecting the ability to do so, even when that entails challenging laws and oligopolistic technology corporations’ policies, is a social justice mandate.

Brexit as ‘politics of division’: social media campaigning after the referendum

ABSTRACT The UK’s referendum on EU membership that resulted in a narrow minority in favour of leave was followed by a leadership vacuum and intense debate about the implementation of the result. The politicization over Brexit resulted in the development of ‘Brexit identities’ of Remainers and Leavers that superseded party identities. We argue that in order to understand how this politicization took place despite a leadership vacuum we firstly need to look beyond the arena of formal party politics to more informal arenas of political contestation on social media, especially Facebook, and secondly understand the linkages between EU and national level politicization that polarised the country around new British-specific identities. Through this, we analyse the ‘politics of division’ not simply as a form of contentious politics driven by political parties, but as a social conflict driven by non-institutionalised groups, grassroots campaigns and ordinary citizens. We find evidence of significant mobilisation that extends beyond the realm of party politics but argue that this mobilisation cannot necessarily be considered entirely ‘grassroots’. Rather, it is driven not just by citizens but also shaped by mainstream and alternative media platforms. The debates cannot, however, be considered purely a form of EU politicization, rather, analysis of Facebook comments shows that politicization over Brexit through these campaigns is primarily contestation over the nature and legitimacy of British democracy. Because of this, we argue that social media is an essential site for the study of EU politicization and political campaigns in general.

“Scrounger-bashing” as national pastime: the prevalence and ferocity of anti-welfare ideology on niche-interest online forums

ABSTRACT Recent research has noted the persistence of a long continuum of “anti-welfare” discourses that are increasingly embedded in the UK news media, political communication, and popular culture (e.g. Golding and Middleton 1982. Images of Welfare: Press and Public Attitudes to Poverty. Oxford: Mark Robertson; Jensen 2014. “Welfare Commonsense, Poverty Porn and Doxosophy.” Sociological Research Online 19 (3): 277–283; Morrison 2019. Scroungers: Moral Panics and Media Myths. London: Zed Books). Historical distinctions between the “deserving” and “undeserving poor” have been sharpened by successive governments in the service of varying shades of neoliberal governance. While Margaret Thatcher castigated “shirkers” in fostering an ideology of economic self-reliance, both New Labour and the Coalition obsessed over “welfare reform”: promoting an ideology of “work” in symbolic opposition to supposed cultures of “worklessness”. But, while “scroungerphobia” (Deacon 1978. “The Scrounging Controversy: Public Attitudes Towards the Unemployed in Contemporary Britain.” Social Policy and Administration 12 (2): 120–135) is now a widely recognised sociological phenomenon, scholarly attention to the concept has largely been reserved for its manifestation in tabloid newspapers, political rhetoric and, latterly, “poverty porn” television. Even recent work considering the public’s contribution to scrounger discourse(s) on social media focuses on mainstream platforms, such as Twitter and newspaper comment threads (e.g. Van Der Bom et al. 2018. “‘It’s not the Fact They Claim Benefits but Their Useless, Lazy, Drug Taking Lifestyles we Despise’: Analysing Audience Responses to Benefits Street Using Live Tweets.” Discourse, Context & Media 21: 36–45; Morrison 2019. Scroungers: Moral Panics and Media Myths. London: Zed Books; Paterson 2020). This paper begins to address this oversight, by examining how normative anti-welfare discourses infiltrate everyday communication in more disparate online communities – including niche consumer forums. It draws on previously unpublished findings from an analysis of welfare-related conversations in these and other spaces at the height of a recent moral panic over “scroungers”: the period from 2013-2016, when Conservative-led governments strove to legitimise sweeping benefit cuts and punitive “welfare reform”.