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| Open AccessRedox signaling-driven modulation of microbial biosynthesis and biocatalysis
Microbial communication has significant implications for industrial applications, but constructing communication systems which support coordinated behaviors is challenging. Here, the authors report an electron transfer triggered redox communication network and demonstrate its ability to coordinate microbial metabolism.
- Na Chen
- , Na Du
- & Quan Yuan
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Comment
| Open AccessA call for immediate action to increase COVID-19 vaccination uptake to prepare for the third pandemic winter
This Comment piece summarises current challenges regarding routine vaccine uptake in the context of the COVID-19 pandemic and provides recommendations on how to increase uptake. To implement these recommendations, the article points to evidence-based resources that can support health-care workers, policy makers and communicators.
- Cornelia Betsch
- , Philipp Schmid
- & Amanda Garrison
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Article
| Open AccessMeasuring exposure to misinformation from political elites on Twitter
Misinformation online can be shared by major political figures and organizations. Here, the authors developed a method to measure exposure to information from these sources on Twitter, and show how exposure relates to the quality of the content people share and their political ideology.
- Mohsen Mosleh
- & David G. Rand
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Comment
| Open AccessTo create serious movement on climate change, we must dispel the myth of indifference
A new study finds that Americans underestimate how many are concerned about climate change as well as support for major climate policies by nearly half, with climate policy supporters significantly outnumbering non-supporters.
- Cynthia McPherson Frantz
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Article
| Open AccessRevisiting COVID-19 vaccine hesitancy around the world using data from 23 countries in 2021
Vaccine hesitancy is a public health challenge. Here the authors examine COVID-19 vaccine hesitancy in June 2021 using a survey including individuals from 23 countries, and report differences compared to a year earlier.
- Jeffrey V. Lazarus
- , Katarzyna Wyka
- & Ayman El-Mohandes
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Comment
| Open AccessCommunity voices: Achieving real diversity in STEM requires the ability to transform institutions
Resilience is often invoked to address systemic marginalization (e.g. racism) in academia but inadvertently maintains harmful systems. We argue that the ability to transform systems, as opposed to persevering within them, must be prioritized to make real, lasting change.
- Jory C. Lerback
- , Monique M. Holt
- & Stephanie Alvarez
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Article
| Open AccessNeutral bots probe political bias on social media
Social media platforms moderating misinformation have been accused of political bias. Here, the authors use neutral social bots to show that, while there is no strong evidence for such a bias, the content to which Twitter users are exposed depends strongly on the political leaning of early Twitter connections.
- Wen Chen
- , Diogo Pacheco
- & Filippo Menczer
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Article
| Open AccessProfessional actors demonstrate variability, not stereotypical expressions, when portraying emotional states in photographs
It has long been hypothesized that certain emotional states are universally expressed with specific facial movements. Here the authors provide evidence that facial expressions of those emotional states are, in fact, varied among individuals rather than stereotyped.
- Tuan Le Mau
- , Katie Hoemann
- & Lisa Feldman Barrett
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Article
| Open AccessTriadic embeddedness structure in family networks predicts mobile communication response to a sudden natural disaster
Here, the authors use mobile telecom data to study communication in family networks after a natural disaster, and find that the structural configuration of families’ social tie sharing predicted their post-disaster communications dynamics.
- Jayson S. Jia
- , Yiwei Li
- & Jianmin Jia
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Article
| Open AccessA computational reward learning account of social media engagement
Despite the popularity of social media, the psychological processes that drive people to engage in it remain poorly understood. The authors applied a computational modeling approach to data from multiple social media platforms to show that engagement can be explained by mechanisms of reward learning.
- Björn Lindström
- , Martin Bellander
- & David M. Amodio
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Article
| Open AccessComparing the effects of climate change labelling on reactions of the Taiwanese public
Terms such as ‘climate change’ and ‘climate crisis’ need to be evaluated for their effectiveness for public perception. In this study of a sample of the Taiwanese public reactions to the terms were largely the same, however, in specific subgroups the term ‘climate crisis’ faced some backlash.
- Li-San Hung
- & Mucahid Mustafa Bayrak
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Article
| Open AccessUsing the president’s tweets to understand political diversion in the age of social media
By analyzing President Trump’s tweets and data from two media sources, the authors provide evidence suggesting that when the media reports on a topic potentially harmful to the president, he tweets about unrelated issues. Further evidence from this case study suggests that these diversionary tweets may also successfully reduce subsequent media coverage of the harmful topic.
- Stephan Lewandowsky
- , Michael Jetter
- & Ullrich K. H. Ecker
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Article
| Open AccessTransforming machine translation: a deep learning system reaches news translation quality comparable to human professionals
The quality of human language translation has been thought to be unattainable by computer translation systems. Here the authors present CUBBITT, a deep learning system that outperforms professional human translators in retaining text meaning in English-to-Czech news translation, and validate the system on English-French and English-Polish language pairs.
- Martin Popel
- , Marketa Tomkova
- & Zdeněk Žabokrtský
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Article
| Open AccessFriendship paradox biases perceptions in directed networks
Individuals within social networks rarely observe the network as a whole; rather, their observations are limited to their social circles. Here we show that network structure can distort observations, making a trait appear far more common within many social circles than it is in the network as a whole.
- Nazanin Alipourfard
- , Buddhika Nettasinghe
- & Kristina Lerman
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Article
| Open AccessClustering knowledge and dispersing abilities enhances collective problem solving in a network
Using agent-based models of a problem-solving task in a network, the authors show that clustering people of similar knowledge maintains solution diversity and increases long run system collective performance. Clustering those with similar abilities, however, lowers solution diversity and performance.
- Charles J. Gomez
- & David M. J. Lazer
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Article
| Open AccessBridge ties bind collective memories
Social groups form collective memories, but the temporal dynamics of this process are unclear. Here, the authors show that when early conversations involve individuals that bridge across clusters of a social network, the network reaches higher mnemonic convergence compared to when early conversations occur within clusters.
- Ida Momennejad
- , Ajua Duker
- & Alin Coman
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Article
| Open AccessInfluence of fake news in Twitter during the 2016 US presidential election
The influence of 'fake news’, spread via social media, has been much discussed in the context of the 2016 US presidential election. Here, the authors use data on 30 million tweets to show how content classified as fake news diffused on Twitter before the election.
- Alexandre Bovet
- & Hernán A. Makse