A new online survey for Washington state residents has launched to gather data on how the COVID-19 pandemic and subsequent economic downturn have affected food access and economic security. The Washington State Food Security Survey, which went live June 18 and runs through July 31, is open to all Washington state residents aged 18 or over.
A team from the University of Washington used an infrared laser to cool a solid semiconductor by at least 20 degrees C, or 36 F, below room temperature, as they report in a paper published June 23 in Nature Communications.
When the universe was in its infancy, it contained no stars at all. And an international team of scientists is closer than ever to detecting, measuring and studying a signal from this era that has been traveling through the cosmos ever since that starless era ended some 13 billion years ago.
Researchers examined 15 years of records of student performance, education and demographics for chemistry courses at the University of Washington. They found that underrepresented students received lower grades in the general chemistry series compared to their peers and, if the grade was sufficiently low, were less likely to continue in the series and more likely to leave STEM. But if underrepresented students completed the first general chemistry course with at least the minimum grade needed to continue in the series, they were more likely than their peers to continue the general chemistry series and complete this major step toward a STEM degree.
Mary Lidstrom, vice provost for research at the University of Washington, talks about the evolving picture of research at the UW in light of the COVID-19 pandemic.
Researchers at the University of Washington and the University of Idaho report that, for a bacterial pathogen already resistant to an antibiotic, prolonged exposure to that antibiotic not only boosted its ability to retain its resistance gene, but also made the pathogen more readily pick up and maintain resistance to a second antibiotic and become a dangerous, multidrug-resistant strain.
After weeks of social distancing during the COVID-19 pandemic, people of all ages may be asking: What could be the harm of visiting just one friend? Unfortunately, it could potentially undo the goal of social distancing, which is to give the COVID-19 virus fewer opportunities to spread. According to a website set up by researchers at the University of Washington, easing the social distancing rules so that each household could have contact with just one or two others would reconnect…
A new data-driven mathematical model of the coronavirus pandemic predicts that the United States will peak in the number of “active” COVID-19 cases on or around April 20, marking a critical milestone on the demand for medical resources.
Jodi Sandfort has been named the next dean of the Daniel J. Evans School of Public Policy and Governance at the University of Washington, Provost Mark Richards announced April 1.
University of Washington researchers have launched the King County COVID-19 Community Study — or KC3S — to gather data through April 19 on how individuals and communities throughout King County are coping with the measures put in place to combat the spread of the COVID-19 virus.
Students from different backgrounds in the United States enter college with equal interest in STEM fields — science, technology, engineering and mathematics. But that equal interest does not result in equal outcomes. Six years after starting an undergraduate STEM degree, roughly twice as many white students finished it compared to African American students. A new study by researchers at the University of Washington shows that teaching techniques in undergraduate STEM courses can significantly narrow gaps in course performance between students…
The wildflowers of Mount Rainier’s subalpine meadows, which bloom once the winter snowpack melts, are a major draw for the more than 1 million visitors to this national park in Washington state each spring and summer. But by the end of this century, scientists expect that snow will melt months earlier due to climate change. New research led by the University of Washington shows that, under those conditions, many visitors would miss the flowers altogether.
Late last year, news broke that the star Betelgeuse was fading significantly, ultimately dropping to around 40% of its usual brightness. The activity fueled popular speculation that the red supergiant would soon explode as a massive supernova. But astronomers have more benign theories to explain the star’s dimming behavior. And scientists at the University of Washington and Lowell Observatory believe they have support for one of them: Betelgeuse isn’t dimming because it’s about to explode — it’s just dusty. In…
P. Dee Boersma, a UW professor of biology and director of the Center for Ecosystem Sentinels, is a finalist for the 2020 Indianapolis Prize for conservation, to be awarded later this year by the Indianapolis Zoological Society. Sue Moore, a scientist with the center and a UW affiliate professor of biology and of aquatic and fishery sciences, has won the 2020 IASC Medal, also known as the Arctic Medal, from the International Arctic Science Committee.
Victoria Meadows, professor of astronomy at the University of Washington and director of the UW’s Virtual Planetary Laboratory, talks about how upcoming missions like the James Webb Space Telescope will be able to characterize the atmospheres of potentially Earth-like exoplanets and may even detect signs of life. Meadows is delivering a talk on this subject on Feb. 15, 2020 at the American Association for the Advancement of Science annual meeting in Seattle.
Despite their reputation as blood-suckers, mosquitoes actually spend most of their time drinking nectar from flowers. Scientists have identified the chemical cues in flowers that stimulate mosquitoes’ sense of smell and draw them in. Their findings show how cues from flowers can stimulate the mosquito brain as much as a warm-blooded host — information that could help develop less toxic repellents and better traps.
Joyce Yen — director of the University of Washington’s ADVANCE Center for Institutional Change, an NSF-funded body to promote female STEM faculty on campus — recently worked with the Heising-Simons Foundation to dismantle bias and promote diversity in a prominent grant that the Foundation awards to postdoctoral researchers in planetary science. In this Q&A, Yen shares the many, sometimes counterintuitive ways bias can work against goals toward greater diversity, equity and inclusion in STEM fields.
Researchers at the University of Washington have developed a method that could make reproducible manufacturing at the nanoscale possible. The team adapted a light-based technology employed widely in biology — known as optical traps or optical tweezers — to operate in a water-free liquid environment of carbon-rich organic solvents, thereby enabling new potential applications.
Researchers from the University of Washington and the FOM Institute for Atomic and Molecular Physics in the Netherlands have developed a way to map strain in lead halide perovskite solar cells. Their approach shows that misorientation between microscopic perovskite crystals is the primary contributor to the buildup of strain within the solar cell, which creates small-scale defects in the grain structure, interrupts the transport of electrons within the solar cell, and ultimately leads to heat loss through a process known as non-radiative recombination.
Ashleigh Theberge, a University of Washington assistant professor of chemistry, has been named a 2019 Packard Fellow for her research on cell signaling. Every year since 1988, the David and Lucile Packard Foundation has awarded Packard Fellowships in Science and Engineering to early-career scientists to pursue the types of innovative projects that often fall outside the purview of traditional sources of funding, such as research grants from government agencies. As one of 22 fellows for 2019, Theberge will receive $875,000…
A team led by scientists at the University of Washington has designed and tested a 3D-printed metamaterial that can manipulate light with nanoscale precision. As they report in a paper published Oct. 4 in the journal Science Advances, their designed optical element focuses light to discrete points in a 3D helical pattern.
An international team of scientists has announced a breakthrough in its quest to measure the mass of the neutrino, one of the most abundant, yet elusive, elementary particles in our universe. At the 2019 Topics in Astroparticle and Underground Physics conference in Toyama, Japan, leaders from the KATRIN experiment reported Sept. 13 that the estimated range for the rest mass of the neutrino is no larger than 1 electron volt, or eV.
Researchers at the University of Washington and the University of Strathclyde report that, in Willapa Bay in Washington state, the water washing over the tidal flats during high tides is largely the same water that washed over the flats during the previous high tide. This “old” water has not been mixed in with “new” water from deeper parts of the bay or the open Pacific Ocean, and has different chemical and biological properties, such as lower levels of food for creatures within the tide flats.
Lukasz Fidkowski, an assistant professor of physics at the University of Washington, is one of the winners of a 2020 New Horizons in Physics Prize from the Breakthrough Foundation. The prize to early-career scientists, announced Sept. 5, recognizes Fidkowski and his three co-recipients “for incisive contributions to the understanding of topological states of matter and the relationships between them.”
Scientists have discovered that the building blocks of proteins can stabilize cell membranes. This finding may explain how the first cells emerged from the primordial soup billions of years ago: The protein building blocks could have stabilized cell membranes against salt and ions that were present in ancient oceans. In addition, membranes may have been a site for these precursor molecules to co-localize, a potential mechanism to explain what brought together the ingredients for life.
Scientists have designed and tested an experimental system that uses a near-infrared laser to actively heat two gold nanorod antennae — metal rods designed and built at the nanoscale — to different temperatures. The nanorods are so close together that they are both electromagnetically and thermally coupled. Yet the team measured temperature differences between the rods as high as 20 degrees Celsius and could change which nanorod was cooler and which was warmer, even though the rods were made of the same material.
A team, led by researchers at the University of Washington, has discovered how the female mosquito brain integrates visual and olfactory signals to identify, track and hone in on a potential host for her next blood meal: After the mosquito’s olfactory system detects certain chemical cues, the mosquito uses her visual system to scan her surroundings for certain shapes and fly toward them, presumably associating those shapes with potential hosts.
Old myths state that, during the time of the dinosaurs, mammals and their relatives were small and primitive. But new research shows that, during the time of the dinosaurs, mammals and their relatives actually underwent two large ecological radiations, diversifying into climbing, gliding and burrowing forms with a variety of diets.
In a paper published May 20 in the journal Nature Materials, a team of researchers from the University of Washington unveiled a new strategy to keep proteins intact and functional in synthetic biomaterials for tissue engineering. Their approach modifies proteins at a specific point so that they can be chemically tethered to the scaffold using light. Since the tether can also be cut by laser light, this method can create evolving patterns of signal proteins throughout a biomaterial scaffold to grow tissues made up of different types of cells.
Researchers at the University of Washington, the U.S. Naval Research Laboratory and the Pacific Northwest National Laboratory discovered that they can use extremely high pressure and temperature to introduce other elements into nanodiamonds, making them potentially useful in cell and tissue imaging, as well as quantum computing.
In a paper published May 2 in Nature Communications, a University of Washington team reports that two major forces have shaped bat skulls over their evolutionary history — echolocation and diet — generating a huge diversity of skull shapes across 1,300 bat species today.
A team led by researchers at the University of Washington has developed synthetic peptides that target and inhibit the small, toxic protein aggregates that are thought to trigger Alzheimer’s disease.
David James Thouless, Nobel laureate and a professor emeritus at the University of Washington, died in Cambridge in the U.K. on April 6, 2019. He was 84 years old.
The University of Washington, the Pacific Northwest National Laboratory and Microsoft Quantum announced this week that they have joined forces in a new coalition, the Northwest Quantum Nexus, to bring about a revolution in quantum research and technology.
In a paper published Feb. 25 in the journal Nature, a University of Washington-led team of physicists report that it has developed a new system to trap individual excitons — bound pairs of electrons and their associated positive charges. Their system could form the basis of a novel experimental platform for monitoring excitons with precision and potentially developing new quantum technologies.
Researchers at the University of Washington wanted to know how Magellanic penguin parents in South America balance the dietary demands of multiple chicks. As they report in a paper published Jan. 23 in the journal Animal Behaviour, when a Magellanic penguin parent returns to its nest with fish, the parent tries to feed each of its two chicks equal portions of food, regardless of the youngsters’ differences in age or size.
The Zwicky Transient Facility, based at the Palomar Observatory, has identified over a thousand new objects and phenomena in the night sky, including more than 1,100 new supernovae and 50 near-Earth asteroids. University of Washington scientists are part of the ZTF team and led the development of the collaboration’s alert system, which informs science teams of possible new objects or changes to known objects in the sky.
On Jan. 10 at the 2019 American Astronomical Society meeting in Seattle, an international team of astronomers announced that they have identified the type of companion star that made its partner in a binary system, a carbon-oxygen white dwarf star, explode. Through repeated observations of SN 2015cp, a supernova 545 million light years away, the team detected hydrogen-rich debris that the companion star had shed prior to the explosion.
Female Magellanic penguins are more likely to die at sea as juveniles, which has caused a skewed sex ratio of nearly three adult males to every female, as well as population decline of more than 40 percent since 1987 at one of their largest breeding colonies — Punta Tombo in Argentina.
In a paper published Jan. 2 in PLOS Biology, two scientists at the University of Washington and North Carolina State University use the economic theory of contests to illustrate how the competitive grant-application system has made the pursuit of research funding inefficient and unsustainable — and that alternative methods, such as a partial lottery to award grants, could relieve pressure on professors and free up time for research.