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Solving the problem of “concrete disease”
When bridges, dam walls, and other structures made of concrete are streaked with dark cracks after a few decades, the culprit is AAR: the alkali-aggregate reaction. Also called the “concrete disease,” or even “concrete cancer,” it is a chemical reaction between substances contained in the material and moisture seeping in from outside. AAR damages concrete structures all over the world and makes complex renovations or reconstructions necessary. Researchers have now solved the structure of the material produced in the course of AAR at atomic level — and have thereby discovered a previously unknown crystalline arrangement of the atoms.
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Game for climate adaptation
An MIT-led project takes the adage “think globally, act locally” to heart by demonstrated a new method for getting local citizens and leaders to agree on the best ways of managing the immediate and long-term effects of climate change. The project got local citizens and officials in four coastal towns to engage in role-playing games about climate change tailored to their communities — which in coastal communities may include rising sea levels and increased storm surges that can lead to flooding.
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DHS S&T-funded technology protects devices from cyberattacks
In 2011, a small group of university researchers working on securing embedded devices caught the attention of the Department of Homeland Security (DHS) Science and Technology Directorate (S&T). That effort has since evolved into a one-of-a-kind technology — called Symbiote — which Hewlett-Packard (HP) recently licensed from Red Balloon Security, to protect its printers from cyberattacks.
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In the world of finance, consideration of climate change is now mainstream
As climate changes become impossible to dismiss, how does the mainstream investor community respond? Are financial decisions taking full account of risks and opportunities related to climate change, or is the topic still virtually ignored in financial decision-making?
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Blitz spirit needed to meet challenges like climate change: Dr. Hugh Hunt
Today’s engineers will need the kind of drive and determination shown by the great wartime innovators such as Sir Barnes Wallis and Sir Frank Whittle if they are to respond effectively to challenges such as climate change, Dr. Hugh Hunt told the Royal Academy of Engineering on Tuesday. Hunt compared today’s challenge of adapting to future climate change with the imperative to develop new technologies to tip the balance of military capability in favor of the Allies during the Second World War.
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Self-healing concrete being tested
At present, billions of pounds are spent every year maintaining, fixing, and restoring structures such as bridges, buildings, tunnels, and roads. It is estimated that around £40 billion a year is spent in the United Kingdom on the repair and maintenance of structures, the majority of which are made from concrete. Researchers are testing three separate concrete-healing technologies for the first time in real-world settings, with a view to incorporating them into a single system that could be used to automatically repair concrete in the built environment.
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Update issued for southeast Florida regional sea level rise projections
The four-county Southeast Florida Regional Climate Change Compact (Compact) has prepared an update to the regional sea level rise projections used for important planning purposes. Overall, the update includes minor changes to the short-term curves, but a more significant increase in the mid-and long-term projections. The 2015 update estimates sea level rise of 6 to 10 inches by 2030, or 3 to 5 inches above average sea level in 2015. Predictions for the mid-term are between 11 and 22 inches of additional sea level rise by 2060, and longer-term between 28 and 57 inches by 2100.
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New York proposes new sea-level rise projection regulations
New York State Department of Environmental Conservation (DEC) announced last week that to better prepare New York State coastal communities and business owners for extreme weather events like Superstorm Sandy three years ago, DEC is proposing new state sea-level rise projections which will help state agencies and project planners develop more resilient structures. “The sea-level rise projections DEC is proposing today reflect the best science available,” said DEC acting commissioner. “Sea level projections will help state agencies, developers, planners and engineers to reduce risks posed by rising seas and coastal storms over the next several decades.”
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NSF highlights more than forty years of supporting cybersecurity research and education
New report highlights NSF-funded cybersecurity research and education. Today, NSF invests nearly $160 million each year in interdisciplinary research, education, and workforce development help protect national and personal security. This support helps scientists develop the tools, training, and people that will keep the nation safe and maintain online privacy.
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California releases plan for preparing the state for extreme effects of climate change
In response to a directive from California governor Edmund G. Brown Jr., the California Natural Resources Agency has been seeking public comment on a draft plan for how California will prepare for and adapt to the catastrophic effects of climate change, including extended droughts and wildfires, rising sea levels and increasingly extreme weather. The draft plan — Safeguarding California: Implementation Action Plans — identifies the state’s vulnerabilities to climate change and details steps that need to be taken across ten sectors including water, transportation, agriculture, biodiversity and habitat, emergency management, and energy.
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Wildfires may double erosion across a quarter of western U.S. watersheds by 2050
Wildfires, which are on the rise throughout the west as a result of prolonged drought and climate change, can alter soil properties and make it more vulnerable to erosion. A new study shows that the increase in wildfires may double soil erosion in some western United States by 2050, and all that dirt ends up in streams, clogging creeks and degrading water quality.
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FBI delays release of interactive tool to identify violent extremists
Facing criticism, the FBI has decided to delay the release of “Don’t Be a Puppet,” an interactive program aiming to help teachers and students identify young people who show signs of flirting with radicalism and violent extremism. The program was scheduled for release Monday (yesterday). Civil rights advocates and American Muslim leaders, invited by the agency to preview the program, harshly criticized it for focusing almost exclusively on Islamic extremism. They noted that practically all the mass school shootings – and most of the violence perpetrated by extremists — in the United States had nothing to do with Islamic militants.
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Online tool maps terrorist networks, behavior over time
To allow a better understanding of how terrorist organizations network and function over time, the National Consortium for the Study of Terrorism and Responses to Terrorism (START) has launched the Big Allied and Dangerous (BAAD) online platform. The tool features updated, vetted, and sourced narratives and relationship information and social network data on fifty of the most notorious terrorist organizations in the world since 1998, with additional network information on more than 100 organizations. The research team plans to expand the database and online platform to include more than 600 terrorist organizations.
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Identifying students cognitively equipped to succeed in cybersecurity
The University of Maryland Center for Advanced Study of Language (CASL) will partner with the U.S. Air Force to conduct a two-year study designed to advance the cyber workforce. The Air Force says that by assessing abilities rather than knowledge, it will broaden its cyber pipeline while improving outcomes and maintaining a highly skilled workforce.
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Online residential fire simulation tool for training firefighters
Firefighting is not what it used to be. Whether it is a complex blaze raging in an urban high-rise or a seemingly straightforward single-level home fire, modern building construction and furnishings have made fighting fires more difficult: Flames burn hotter, produce more smoke, and spread more quickly. But fire research has advanced, too, and researchers are working with five major urban fire departments to build new knowledge on modern residential firefighting into game-based online simulations with an engaging, dynamic format.
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More headlines
The long view
Encryption Breakthrough Lays Groundwork for Privacy-Preserving AI Models
In an era where data privacy concerns loom large, a new approach in artificial intelligence (AI) could reshape how sensitive information is processed. New AI framework enables secure neural network computation without sacrificing accuracy.
AI-Controlled Fighter Jets May Be Closer Than We Think — and Would Change the Face of Warfare
Could we be on the verge of an era where fighter jets take flight without pilots – and are controlled by artificial intelligence (AI)? US R Adm Michael Donnelly recently said that an upcoming combat jet could be the navy’s last one with a pilot in the cockpit.
The Potential Impact of Seabed Mining on Critical Mineral Supply Chains and Global Geopolitics
The potential emergence of a seabed mining industry has important ramifications for the diversification of critical mineral supply chains, revenues for developing nations with substantial terrestrial mining sectors, and global geopolitics.
AI and the Future of the U.S. Electric Grid
Despite its age, the U.S. electric grid remains one of the great workhorses of modern life. Whether it can maintain that performance over the next few years may determine how well the U.S. competes in an AI-driven world.
Using Liquid Air for Grid-Scale Energy Storage
New research finds liquid air energy storage could be the lowest-cost option for ensuring a continuous power supply on a future grid dominated by carbon-free but intermittent sources of electricity.
Enhanced Geothermal Systems: A Promising Source of Round-the-Clock Energy
With its capacity to provide 24/7 power, many are warming up to the prospect of geothermal energy. Scientists are currently working to advance human-made reservoirs in Earth’s deep subsurface to stimulate the activity that exists within natural geothermal systems.