Research conducted at Stanford University highlights groundbreaking approaches to combating disease and understanding geological risks. Recent studies explore the use of African catfish to reduce the spread of schistosomiasis, a waterborne disease, while also unveiling the first global map of earthquakes occurring in the Earth’s mantle.
Catfish as a Sustainable Solution in Senegal
Professor Giulio De Leo, a notable figure at Stanford’s Woods Institute for the Environment, is leading a project aimed at tackling the transmission of schistosomiasis, particularly affecting rice farmers in Senegal. This debilitating disease, caused by a parasite found in freshwater snails, inflicts symptoms ranging from rashes and flu-like conditions to severe digestive and neurological issues.
To address this public health concern, De Leo and his team have identified African catfish as a natural predator of the parasitic snail hosts. Funded by the Stanford Doerr School of Sustainability’s Sustainability Accelerator, the initiative aims to release these catfish into rice fields. Initial findings suggest that this approach not only reduces snail populations but also increases rice yields and enhances farmers’ incomes.
De Leo expressed optimism about the project’s direction: “With the guidance of our partners in Senegal, we’re demonstrating a proof of concept to scale adoption.” Collaborations with local organizations are essential for strengthening farming operations and improving management practices in rice paddies.
Mapping Mantle Earthquakes to Assess Risks
In a separate research effort, scientists at Stanford’s Doerr School of Sustainability have created a comprehensive global map detailing earthquakes occurring in the Earth’s mantle. This groundbreaking work, led by Shiqi “Axel” Wang, a former Ph.D. student in geophysics, aims to illuminate the infrequent yet significant mantle earthquakes.
The researchers analyzed over 46,000 earthquakes documented since 1990, identifying just 459 as mantle earthquakes based on their wave types. This figure is likely an underestimation, given the limited number of sensors in remote areas where such earthquakes may occur.
Wang noted, “Continental mantle earthquakes might be part of an inherently interconnected earthquake cycle, both from the crust and also the upper mantle.” By studying these rare events, researchers aim to enhance understanding of seismic risks associated with more frequent earthquakes that affect the Earth’s crust.
Insights into Math Learning Disabilities
Recent findings from Stanford School of Medicine offer valuable insights into the cognitive processes of students with math learning disabilities. Published in the Journal of Neuroscience on February 9, 2024, the study analyzed the problem-solving techniques of 87 second and third graders, including 34 students classified as having math learning disabilities.
The research revealed that these students exhibited different brain activity patterns in areas responsible for focused attention and error-checking, despite achieving similar results in their mathematical tasks. Senior author Vinod Menon, a professor of psychiatry and behavioral sciences, emphasized the importance of targeting cognitive development: “Our findings suggest that interventions should target not only basic number sense, but also metacognitive processes, like performance monitoring.”
This research holds potential for educators and parents seeking to support students with math learning disabilities more effectively. By focusing on building cognitive skills, they can help mitigate feelings of frustration and anxiety that often accompany struggles in mathematics.
These studies reflect Stanford’s commitment to addressing critical challenges in public health, geology, and education, offering innovative solutions and deeper understanding of complex issues affecting communities worldwide.
