South America
News from a postpandemic world
We asked young scientists to imagine this scenario: You are a science writer in the year 2040 working on a news story that answers this question: What do you hope or fear will be the long-term effects of the coronavirus disease 2019 (COVID-19) pandemic? A selection of their responses, arranged as a newpaper, is below. Follow NextGen Voices on Twitter with hashtag #NextGenSci. Read previous NextGen Voices survey results at . โJennifer Sills Today, scientists confirm that 1000 previously endangered species have been removed from the Vulnerable list. Biodiversity renewal has been under way since the COVID-19 pandemic 20 years ago led many governments to reevaluate their priorities. Hunting practices and bushmeat consumption were constrained to limit the transmission of new pathogens through human contact with the meat and biofluids of wild animals. Deforestation was restricted worldwide when it became clear that land-use modifications and climate change were important drivers of vector-borne diseases. COVID-19 claimed many lives, but the political and environmental changes the pandemic inspired have likely saved many more by protecting the world's biodiversity. Joel Henrique Ellwanger Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, 91501-970, Brazil. Email: joel.ellwanger{at}gmail.com Science and technology research budgets, now classified as an arm of the national defense force, could rival traditional military spending in a few years' time. This newfound prioritization of science was shaped by the COVID-19 pandemic, which made clear that the previous conception of military force is impractical when the enemy is invisible and formidable. The unprecedented redirection of financial resources to scientific communities to help find a cure and vaccines, along with the increased demand for scientific experts, expanded technological frontiers and gave science a well-deserved space in governance. Mpho Diphago Stanley Lekgoathi The South African Nuclear Energy Corporation, Pretoria, Gauteng, South Africa. Email: mpho.lekgoathi{at}necsa.co.za In response to the 50th wave of COVID-19, which hit New York City last month, the U.S. government has announced that the first spaceship designated for in-orbit medical treatment of COVID-19 patients will soon transport 10,000 residents from high-risk zones to Space. Scientists say that prolonged stay in Space colonies with exposure to controlled gamma radiation from cosmic dust may help weaken the virus's strong affinity to lung tissue. โWe will do all we can to protect our residents on Earth. Unlike 2019, we are prepared for this challenge,โ said the President in a Capitol Hill address. The Senate has voted to fund the treatment expenses for everyone on the flight. Kartik Nemani Layered Materials and Structures Lab, Department of Mechanical and Energy Engineering, Purdue School of Engineering and Technology, Indiana UniversityโPurdue University Indianapolis, Indianapolis, IN 46202, USA. Email: snemani{at}purdue.edu Workers at major corporations staged a walk-out today, the 20th anniversary of the COVID-19 pandemic, to protest what some have deemed invasive monitoring. Many fears subsided when the first SARS-CoV-2 vaccine was broadly distributed in 2023, but subsequent zoonotic viruses emerged faster than society could prepare for them. With the world economy precariously weak, a cautious arrangement was reached: Workers could return to their jobs if they submitted to routine infection checks. At first, these were relatively innocuous temperature probes and cough tracking. However, with the 2029 advent of low-cost RNA wastewater screening by smart toilets and ubiquitous wall-mounted infrared heat sensors, infected employees could be pinpointed before displaying acute symptoms. Later, an eCommerce/fitness-tracking consortium released artificial intelligence algorithms that combined smartwatch health metrics and recent online search history. Corporate Wellness Boards used the results to justify mandatory quarantines. Employees cried foul. The debate rages on in our courts and on the Giganet about whether the public good is served by exposing the โviral statusโ of the few. Michael A. Tarselli Society for Laboratory Automation and Screening, Oak Brook, IL 60523, USA. Email: mtarselli{at}slas.org Earlier this month, 21 individuals were quarantined in Kampala, Uganda, after a man was diagnosed with Marburg hemorrhagic fever by the local laboratory of the International Center for Disease Prevention (ICDP). The patient, who has now fully recovered, may have been infected at the veterinary clinic where he worked in close contact with possible animal carriers. โThis is a virus that spreads easily through bodily fluids and historically has been transmitted to caregivers,โ said Dr. Icuaf, director of the ICDP. Once again, the localized presence of centers with efficient testing capabilities made it possible to identify patient zero and contain the outbreak at its inception. As a result, โno deaths occurred, and everyone who might have been exposed has been quarantined while we monitor their health,โ added Dr. Icuaf. The ICDP was instituted in 2021 as a global response to the COVID-19 pandemic, which marked a revolution in public awareness of science-based policy. The cost of crisis prevention is now routinely compared with the predicted price of managing such a crisis after it has occurred. Ahmed Al Harraq Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA 70803, USA. Email: aahme22{at}lsu.edu One of the world's leading universities is launching a large-scale screen of potential antiviral and antibacterial drugs on human volunteers. The substances show promising results in vitro but have not been tested on animals. To compensate for the risk of side effects, all volunteers will receive generous payment. โDrugs showing promising effects on mice could be ineffective on humans, making drug development expensive and slow,โ explained the leading scientist of the drug screen. Human rights experts warned against granting permission to conduct the study. โOffering payment for causing physical harm targets the economically vulnerable and violates basic human rights,โ they argued. However, doctors and politicians praise the idea, referring to the COVID-19 epidemic. โDeveloping a new drug through the traditional process can take years. Testing multiple potential candidates on coronavirus-infected people saved thousands of lives before basic research had a chance to catch up. Next time, we want to be prepared,โ explained the health minister. Anna Uzonyi Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, 7610001, Israel. Email: anna.uzonyi{at}weizmann.ac.il Results published today from a 20-year experiment show that a โlotteryโ grant funding scheme is superior to traditional peer-review assessment panels. For decades, researchers have debated the effectiveness and cost-efficiency of selecting grant recipients through a peer-review process, given the documented biases that hinder diversity and equitable decision-making. โIt was a controversial move at the time, but the results are clear,โ said the lead author of the study. The funding experiment, which began in 2020 in response to the COVID-19 pandemic, was introduced to preserve the workforce employed on short-term contracts. During that year, pandemic-related budget cuts and social restrictions impeded the traditional peer-review process. โThe lottery not only reduced peer-review bias but also added millions of dollars per year to the sector in hours saved by academics no longer devoting time to peer review,โ said the lead author. โThat time was spent on doing more experiments, mentoring colleagues, or achieving a healthier work-life balance.โ Ken Dutton-Regester Department of Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD 4006, Australia. Twitter: @stemventurist As the debate continues on the efficacy of educational methods, most universities now use a combination of in-person, remote, and technology-enhanced classrooms. The rapid expansion of evidence-based strategies such as machine learning and artificial intelligence, audio and video tools, three-dimensional environments, and simulations across disciplines began during the COVID-19 pandemic. The decision to move education to a computer-based environment to protect the health and safety of students and staff transformed the educational conversation. In the increasingly technology-enhanced world, discussions about how to teach a science class online, how to facilitate lab experiences, and how to conduct experiments with new constraints swept the research community. A nuanced understanding emerged about true online pedagogy versus synchronous, remote meetings. Two decades later, we see the results of this transformation. Rachel Yoho Department of Environmental and Global Health, University of Florida, Gainesville, FL 32603, USA. Twitter: @rachel_yoho A stunning 200,000 people attended the grand opening ceremony of the 2040 Olympics yesterday in New Delhi, India. It has been 20 years since such a public event could take place safely. Only with the recent release of clothing and shoes made of technologically advanced materials that instantly kill viruses could the social distancing that began with the COVID-19 pandemic be relaxed. For added peace of mind, all attendees at the ceremony consented to the skin implantation of Viroclean, a new chip-based device that sounds an alarm when it detects viruses in the air. Sudhakar Srivastava Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India. Email: sudhakar.srivastava{at}gmail.com This weekend, at the Coachella 2040 music festival, three aerosol biosurveillance sensors detected a SARS-like virus in the air. Smartphone tracing, using the opt-in U.S. Centers for Disease Control and Prevention (CDC) geospatial health app developed in the wake of the COVID-19 pandemic, identified two potential index cases. The CDC outbreak prevention team mobilized regional contact tracers to intercept and test both individuals within an hour of first detection. One individual tested positive for a variant of the 2019 SARS-CoV-2 strain, previously thought to be eradicated, and is undergoing treatment in quarantine. Michael Strong Center for Genes, Environment, and Health, National Jewish Health and University of Colorado, Anschutz Medical Campus, Denver, CO 80206, USA. Email: strongm{at}njhealth.org Last week's 15th annual Pan-global Remote Integrated Sciences Meeting (PRISM) attracted more than 100,000 attendees from more than 160 countries. Scientists, educators, students, entrepreneurs, policymakers, and industry experts from fields spanning the physical, biological, and social sciences logged on to the online venue, enabled by virtual reality. Advanced machine learning algorithms provided recommendations for presentations relevant to each participant based on both their expertise and potential for interdisciplinary collaboration. As usual, the highlight of the meeting was the virtual poster sessions, driven by interactivity and streamlined to optimize small-group scientific conversation across fields. Many junior scientist attendees were surprised to learn that such events were nearly unheard of before PRISM grew from the increasing move toward virtual conferences during the coronavirus pandemic over 20 years ago. โMy adviser told me that when she was a grad student, big conferences were all held in person,โ writes one anonymous Ph.D. student. โCan you imagine having a giant conference like this in some random convention center, with tens of thousands of scientists spending hundreds of dollars on fuel-inefficient flights and hotel booking, lugging around printed posters and just milling around for a week trying to find the optimal talks to attend? Insane.โ Yifan Li Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA. Twitter: @iWonderWhyly Today, cell-based meat consumption has surpassed farm-produced meat for the first time. The transition began with the meat shortages and near collapse of the meat supply chain during the COVID-19 outbreak. With thousands of workers packed into poorly ventilated and unhygienic facilities, meat processing plants were hotspots for the SARS-CoV-2 virus. A global meat shortage emerged as production rates were slashed. Most people turned to the plant-based meat alternatives available at the time. The meat industry's demise was sealed when cell-based meat entered the mainstream market the following year. Clean meat eliminated the negative effects of the meat industry, from pollution caused by runoff and antibiotics, to worker and animal cruelty, to the carbon footprint of livestock, which contributed 18% of greenhouse gas emissions at the time. Cell-based meat has been growing in popularity ever since, as traditional meat became ethically and environmentally unpalatable. JiaJia Fu Whittle School and Studios, Washington, DC 20008, USA. Email: jjnaturalist{at}gmail.com Global seafood supply now relies entirely on aquaculture. The turning point came when researchers optimized the breeding techniques for edible crabs, enabling high-valued crab species such as mud crabs and blue crabs to be mass-produced in full aquaculture settings. The prioritization of aquaculture was made possible by the COVID-19 pandemic in 2020. A 12-month closure of fisheries during the wave of global stay-at-home orders led to the rejuvenation of overexploited species such as sardines and mackerels, which had been on the verge of extinction, and made people recognize the fragility of the supply chain. Full investment in aquaculture research began the following year. Khor Waiho Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, 21030, Malaysia. Email: waiho{at}umt.edu.my Next week, the United Nations will meet to assess whether the goals of the 2040 Agenda for Sustainable Development have been achieved. Unfortunately, reasons for optimism are scarce. Overexploitation of natural resources, CO2 emissions, and plastic waste continue to soar. The wealthiest sector of the population consumes 80% of the resources, and the poorest people increasingly suffer from extreme weather events, famines, and freshwater scarcity. We were already heading in this direction early in the century, when the short-term vision of corporations and policy-makers prioritized economic benefits over human and environmental health. The COVID-19 pandemic exacerbated the negative trends. Since 2020, an array of wasteful practices increased, including the proliferation of single-use products and travel in private vehicles to avoid physical contact. After reviewing the past decade, the UN countries will discuss commitments to decrease inequality and pollution by 2050. Isabel Marรญn Beltrรกn Laboratory of Environmental Technologies, Centro de Ciรชncias do Mar do Algarve, Universidade do Algarve, Campus de Gambelas, Faro, 8005-139, Portugal. Email: imbeltran{at}ualg.pt For the first time, global average air temperature is more than 2ยฐC higher than the 20th-century global average. Scientists suggest that decisions made in response to the COVID-19 pandemic led to today's disastrous climate consequences. After the Paris Climate Agreement in 2016, scientists were hopeful. National governments were implementing increasingly ambitious measures to meet their commitments. But the economic fallout of the pandemic led growing economies such as India to relax environmental clearance guidelines for industries and infrastructure projects and cut funding allocated to environmental reforms. First-world countries such as the United States and China, instead of shifting toward renewable energy, boosted investment in fossil fuels, which in turn increased greenhouse gas emissions. Even after multiple warnings from the Intergovernmental Panel on Climate Change, G20 nations neglected to follow the advice of scientists. Akash Mukherjee Department of Physics, Indian Institute of Science Education and Research, Pune, Pune, Maharashtra, 411008, India. Twitter: @aghori_AM A government report released yesterday warns of a potential spike in counterfeit immunity passports entering the market this coronavirus season. According to Jane London, the U.K. health minister, โThere is a substantial increase in the number of illegal immunigrants crossing provincial and municipal borders. The public should be aware that just scanning someone's immunity passport is not enough anymore.โ This report comes just 6 months after the U.S. Centers for Disease Control and Prevention first released notice that the โNextGen Immunity Passportโ brand had been hacked, allowing scammers and tech-savvy citizens to falsify the immunity data they carry with them by law. Asked how businesses and town-guards were detecting falsified immunity passports at checkpoints, minister of national movement John Petersfield told journalists, โThis is a police matter. Any further information about detection at this time will only help counterfeiters.โ Widespread counterfeiting, as well as last year's false-negative scandal, has generated substantial public distrust in the use of the immunity passport system in movement legislation, now 19 years old. โWe learned our lesson about free movement back in 2020,โ said one government official who wished to remain anonymous, โbut the immunity passport system is cracking, and we don't see a fix yet.โ Tyler D. P. Brunet Department of History and Philosophy of Science, University of Cambridge, Cambridge, Cambridgeshire, CB2 3RH, UK. Email: tdpb2{at}cam.ac.uk
Self-supervised learning in Audio and Speech
The ongoing success of deep learning techniques depends on the quality of the representations automatically discovered from data 1. These representations must capture important underlying structures from the raw input, e.g., intermediate concepts, features, or latent variables that are useful for the downstream task. While supervised learning using large annotated corpora can leverage useful representations, collecting large amounts of annotated examples is costly, time-consuming, and not always feasible. This is particularly problematic for a large variety of applications. In the speech domain, for instance, there are many low-resource languages, where the progress is dramatically slower than in high-resource languages such as English.
Learn Faster and Forget Slower via Fast and Stable Task Adaptation
Varno, Farshid, Petry, Lucas May, Di Jorio, Lisa, Matwin, Stan
Training Deep Neural Networks (DNNs) is still highly time-consuming and compute-intensive. It has been shown that adapting a pretrained model may significantly accelerate this process. With a focus on classification, we show that current fine-tuning techniques make the pretrained models catastrophically forget the transferred knowledge even before anything about the new task is learned. Such rapid knowledge loss undermines the merits of transfer learning and may result in a much slower convergence rate compared to when the maximum amount of knowledge is exploited. We investigate the source of this problem from different perspectives and to alleviate it, introduce Fast And Stable Task-adaptation (FAST), an easy to apply fine-tuning algorithm. The paper provides a novel geometric perspective on how the loss landscape of source and target tasks are linked in different transfer learning strategies. We empirically show that compared to prevailing fine-tuning practices, FAST learns the target task faster and forgets the source task slower. The code is available at https://github.com/fvarno/FAST.
Traditional and accelerated gradient descent for neural architecture search
Trillos, Nicolas Garcia, Morales, Felix, Morales, Javier
In this paper, we introduce two algorithms for neural architecture search (NASGD and NASAGD) following the theoretical work by two of the authors [4], which aimed at introducing the conceptual basis for new notions of traditional and accelerated gradient descent algorithms for the optimization of a function on a semi-discrete space using ideas from optimal transport theory. Our methods, which use the network morphism framework introduced in [3] as a baseline, can analyze forty times as many architectures as the hill climbing methods [3, 11] while using the same computational resources and time and achieving comparable levels of accuracy.
Quantifying causal influences in the presence of a quantum common cause
Gachechiladze, Mariami, Miklin, Nikolai, Chaves, Rafael
Quantum mechanics challenges our intuition on the cause-effect relations in nature. Some fundamental concepts, including Reichenbach's common cause principle or the notion of local realism, have to be reconsidered. Traditionally, this is witnessed by the violation of a Bell inequality. But are Bell inequalities the only signature of the incompatibility between quantum correlations and causality theory? Motivated by this question we introduce a general framework able to estimate causal influences between two variables, without the need of interventions and irrespectively of the classical, quantum, or even post-quantum nature of a common cause. In particular, by considering the simplest instrumental scenario -- for which violation of Bell inequalities is not possible -- we show that every pure bipartite entangled state violates the classical bounds on causal influence, thus answering in negative to the posed question and opening a new venue to explore the role of causality within quantum theory.
A Semi-Supervised Generative Adversarial Network for Prediction of Genetic Disease Outcomes
Davi, Caio, Braga-Neto, Ulisses
For most diseases, building large databases of labeled genetic data is an expensive and time-demanding task. To address this, we introduce genetic Generative Adversarial Networks (gGAN), a semi-supervised approach based on an innovative GAN architecture to create large synthetic genetic data sets starting with a small amount of labeled data and a large amount of unlabeled data. Our goal is to determine the propensity of a new individual to develop the severe form of the illness from their genetic profile alone. The proposed model achieved satisfactory results using real genetic data from different datasets and populations, in which the test populations may not have the same genetic profiles. The proposed model is self-aware and capable of determining whether a new genetic profile has enough compatibility with the data on which the network was trained and is thus suitable for prediction. The code and datasets used can be found at https://github.com/caio-davi/gGAN.
BusTr: Predicting Bus Travel Times from Real-Time Traffic
Barnes, Richard, Buthpitiya, Senaka, Cook, James, Fabrikant, Alex, Tomkins, Andrew, Xu, Fangzhou
Of these two modalities, the world's public transit systems where no official real-time real-time state is disproportionately important for the bus tracking is provided. We demonstrate that our neural routine trips that dominate most people's transportation sequence model improves over DeepTTE, the state-ofthe-art needs. Most transit users know by heart the routes connecting baseline, both in performance ( 30% MAPE) and their home, work, and other frequent destinations, training stability. We also demonstrate significant generalization but they have a well-established need for information gains over simpler models, evaluated on longitudinal about real-time changes. Transit variability is a data to cope with a constantly evolving world.
Is The Brain An Effective Artificial Intelligence Model?
In the summer of 2009, the Israeli neuroscientist Henry Markram endeavored onto the TED stage in Oxford, England, and introduced an immodest proposal: he and his colleagues would develop a full human brain simulation inside a supercomputer within a decade. They had been mapping the cells in the neocortex, the supposed seat of thought and perception, for years already. "It's a bit like going and cataloging one piece of rainforest," explained Markram. "How many trees it has? What features are the trees? "His team would now establish a virtual Silicon rainforest from which they hoped artificial intelligence would evolve organically.
Entering a new decade of AI: The state of play
In this episode of the McKinsey on AI podcast miniseries, McKinsey's David DeLallo speaks with McKinsey Global Institute partner Michael Chui and associate partner Bryce Hall about the latest trends in business adoption of artificial intelligence (AI). They discuss where the technology is being used most across industries, companies, and business functions; the keys to getting impact from AI investments; and what lies ahead. There's no shortage of predictions about how it could fundamentally change the way we live and work. Over the past few years, companies around the world have been figuring out exactly how AI technologies can improve their performance in a number of areas across their business. But is AI actually delivering significant results? Moreover, what can we expect to see as we move into a new decade of AI use and development? To answer some of these questions today, I'm joined by Michael Chui, a McKinsey partner with the McKinsey Global Institute, who is based in our San Francisco office, and associate partner Bryce Hall from our Washington, DC, office.