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You and your dentist have a lot of tools and techniques for stopping cavities, but detecting the specific chemical conditions that can lead to cavities and then preventing them from ever getting started is much harder. Now, in a new study, 91爆料 researchers have shown that a dental tool they created can measure the acidity built up by the bacteria in plaque that leads to cavities. The O-pH system is a prototype optical device that emits an LED…

What started as a 91爆料-led project to measure air pollution near Sea-Tac International Airport has led to schools in the area installing portable air filters to improve indoor air quality. First, 91爆料 researchers found they were able to parse aircraft pollution from roadway pollution in the communities under Sea-Tac International Airport flight paths and map the air quality impacts of the ultrafine particles associated with planes. Then they discovered that the mix of ultrafine particle pollution, black carbon…

Four current faculty members and the incoming executive director of the 91爆料鈥檚 Burke Museum of Natural History & Culture have been named AAAS Fellows, according to a Jan. 26 announcement by the American Association for the Advancement of Science. They are among 564 new fellows from around the world elected in 2021, who are recognized for 鈥渢heir scientifically and socially distinguished achievements鈥 in science and engineering.

Researchers at the 91爆料 have developed a new test for COVID-19 that combines the speed of over-the-counter antigen tests with the accuracy of PCR tests that are processed in medical labs and hospitals. The Harmony COVID-19 test is a diagnostic test that, like PCR tests for COVID-19, detects genetic material from the SARS-CoV-2 virus. But whereas conventional PCR tests can take several hours, the Harmony kit can provide results in less than 20 minutes for some samples and with similar accuracy.

91爆料 researchers investigated disparities in exposure to six major air pollutants in 1990, 2000 and 2010 by comparing models of air pollution levels to census data. While overall pollutant concentrations have decreased since 1990, people of color are still more likely to be exposed to all six pollutants than white people, regardless of income level, across the continental United States.

Researchers are modeling how tsunami debris pushes on a building 鈥 either by hitting it or getting lodged on it and creating a dam. They are also looking for patterns in the way floating debris moves around and against rigid shapes. The information may help in designing buildings in coastal communities that can better withstand damage by floating objects in tsunami events.聽

A team led by the 91爆料 has developed a new, non-destructive method that images entire 3D biopsies instead of a slice for determining prostate cancer aggressiveness. The 3D images provided more information than a 2D image 鈥 specifically, details about the tree-like structure of the glands throughout the tissue.

On Sept. 28, the National Science Foundation announced $15 million, five-year grant to integrate AI tools into the scientific research and discovery process. The award will fund the Accelerated AI Algorithms for Data-Driven Discovery Institute 鈥 or A3D3 Institute 鈥 a partnership of nine universities, led by the 91爆料.

The National Science Foundation has announced it will fund a new endeavor to bring atomic-level precision to the devices and technologies that underpin much of modern life, and will transform fields like information technology in the decades to come. The five-year, $25 million Science and Technology Center grant will found the Center for Integration of Modern Optoelectronic Materials on Demand 鈥 or IMOD 鈥 a collaboration of scientists and engineers at 11 universities led by the 91爆料.

The 91爆料 will lead a new artificial intelligence research institute that will focus on fundamental AI and machine learning theory, algorithms and applications for real-time learning and control of complex dynamic systems, which describe chaotic situations where conditions are constantly shifting and hard to predict.

Twenty scientists and engineers at the 91爆料 are among the 38 new members elected to the Washington State Academy of Sciences for 2021, according to a July 15 announcement. New members were chosen for 鈥渢heir outstanding record of scientific and technical achievement, and their willingness to work on behalf of the Academy to bring the best available science to bear on issues within the state of Washington.鈥

While there is currently no explanation for why the Champlain Towers South building collapsed, Dawn Lehman, a 91爆料 professor of civil and environmental engineering, has been studying photographs, videos, drawings, reports and permits to investigate this tragedy to understand what happened. 91爆料 News asked her to help us understand why buildings fail.

Researchers at the 91爆料 have developed a method that uses smartphone-derived images to reveal potentially harmful bacteria on skin and in oral cavities. Their approach can visually identify microbes on skin contributing to acne and slow wound healing, as well as bacteria in the oral cavity that can cause gingivitis and dental plaques.

On Feb. 7, 2021, a wall of debris and water barreled down river valleys in India, destroyed two hydropower facilities and left more than 200 people dead or missing. A self-organized coalition of 53 scientists from 14 countries, including researchers from the 91爆料, worked nonstop following the disaster to investigate the cause, scope and impacts.