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Categories: Geoscience: Landslides, Mathematics: Puzzles
Published A new approach to a $1 million mathematical enigma
(via sciencedaily.com) Numbers like pi, e and phi often turn up in unexpected places in science and mathematics. Pascal's triangle and the Fibonacci sequence also seem inexplicably widespread in nature. Then there's the Riemann zeta function, a deceptively straightforward function that has perplexed mathematicians since the 19th century. The most famous quandary, the Riemann hypothesis, is perhaps the greatest unsolved question in mathematics, with the Clay Mathematics Institute offering a $1 million prize for a correct proof.
Published Powerful volcanic blast not the cause for 2018 Indonesian island collapse
(via sciencedaily.com) The dramatic collapse of Indonesia's Anak Krakatau volcano in December 2018 resulted from long-term destabilising processes, and was not triggered by any distinct changes in the magmatic system that could have been detected by current monitoring techniques, new research has found.
Published Forests offer minimal protection against major flood events
(via sciencedaily.com) New research examining whether forests can mitigate flood risk suggests they may offer less protection against major events than had been hoped. Although the work, which was carried out in forest sites in Ireland and the UK, showed forests can suppress small storm flows it also underlined that they are likely to make minimal difference in reducing the devastating impacts of major flood events.
Published Climate uncertainty colors flood risk assessment
(via sciencedaily.com) Understanding how climate change will affect the flooding of rivers may become easier with a new framework for assessing flood risk that's been developed by an interdisciplinary team.
Published Rivers play key role in destructive coastal flooding, new research shows
(via sciencedaily.com) Rising oceans get more attention in climate change discussions, but rivers are rising, too, according to new research. The research shows that rivers need more attention in policy management and disaster preparation, both at the coast and farther inland.
Published Earthquakes and extreme rainfall lead to a significant increase in the rates of landslides in Nepal
(via sciencedaily.com) Researchers outline how they were able to establish a clear pattern between the strength of the monsoon season in Nepal and the amount of landsliding over a 30-year period between 1988 and 2018.
Published Just a game? Study shows no evidence that violent video games lead to real-life violence
(via sciencedaily.com) As the latest Call of Duty video game is released in the UK today, and with Battlefield 2042 and a remastered Grand Theft Auto trilogy to follow later this month, new research finds no evidence that violence increases after a new video game is released.
Published COVID-19 vaccination strategies: When is one dose better than two?
(via sciencedaily.com) While most of the COVID-19 vaccines are designed as a two-dose regimen, some countries have prioritized vaccinating as many people as possible with a single dose before giving out an additional dose. In a new study, researchers illustrate the conditions under which a "prime first" vaccine campaign is most effective at stopping the spread of the COVID-19 virus. The team found the vaccine waning rate to be a critically important factor in the decision.
Published Using quantum Parrondo’s random walks for encryption
(via sciencedaily.com) SUTD has set out to apply concepts from quantum Parrondo's paradox in search of a working protocol for semiclassical encryption.
Published Urban areas more likely to have precipitation-triggered landslides, exposing growing populations to slide hazards
(via sciencedaily.com) Urban areas may be at greater risk for precipitation-triggered landslides than rural areas, according to a new study that could help improve landslide predictions and hazard and risk assessments. Researchers found that urban landslide hazard was up to 10 times more sensitive to variations in precipitation than in rural areas.
Published Evacuation during and after the 2018 Montecito debris flow
(via sciencedaily.com) A new study speaks to the importance of public awareness programs in keeping residents -- and emergency management offices -- informed about rare but potentially lethal natural events in their area.
Published Seismic forensics and its importance for early warning
(via sciencedaily.com) The catastrophic rockslide of February 7, 2021, in India's Dhauli Ganga Valley and the subsequent flood killed at least a hundred people and destroyed two hydroelectric power plants. Researchers traced the disaster minute by minute using data from a network of seismometers. The team posits that seismic networks could be used to establish an early warning system for high mountain regions.
Published Landslide disaster risk in the Kivu Rift is linked to deforestation and population growth
(via sciencedaily.com) New research shows how deforestation and population growth have greatly impacted landslide risk in the Kivu Rift. This is what researchers established from an analysis of six decades of forest cover and population trends in the region.
Published Mathematician reveals world’s oldest example of applied geometry
(via sciencedaily.com) A scientist has revealed that an ancient clay tablet could be the oldest and most complete example of applied geometry. The surveyor's field plan from the Old Babylon period shows that ancient mathematics was more advanced than previously thought.
Published Sea-level rise may worsen existing San Francisco Bay Area inequities
(via sciencedaily.com) Researchers examined the number of households unable to pay for damages from coastal flooding to reveal how sea-level rise could threaten the fabric of Bay Area communities over the next 40 years.
Published Training helps teachers anticipate how students with learning disabilities might solve problems
(via sciencedaily.com) Researchers found that a four-week training course made a substantial difference in helping special education teachers anticipate different ways students with learning disabilities might solve math problems.
Published Coastal wetlands are nature's flood defenses
(via sciencedaily.com) Coastal wetlands -- such as salt marshes -- provide even more flood protection than previously thought, reducing risks to lives and homes in estuaries, a new study reveals. Research showed that wetlands that grow in estuaries can reduce water levels by up to 2 meters and provide protection far inland.
Published Thinking in 3D improves mathematical skills
(via sciencedaily.com) Spatial reasoning ability in small children reflects how well they will perform in mathematics later. Researchers recently came to this conclusion, making the case for better cultivation of spatial reasoning.
Published The Science of tsunamis
(via sciencedaily.com) The word 'tsunami' brings immediately to mind the havoc that can be wrought by these uniquely powerful waves. The tsunamis we hear about most often are caused by undersea earthquakes, and the waves they generate can travel at speeds of up to 250 miles per hour and reach tens of meters high when they make landfall and break. They can cause massive flooding and rapid widespread devastation in coastal areas, as happened in Southeast Asia in 2004 and in Japan in 2011.
Published Deforestation darkening the seas above world's second biggest reef
(via sciencedaily.com) Converting Central American tropical forests into agricultural land is changing the color and composition of natural material washing into nearby rivers, making it less likely to decompose before it reaches the ocean, a new study has shown.