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After a mother octopus lays a clutch of eggs, she quits eating and wastes away; by the time the eggs hatch, she is dead. Some females in captivity even seem to speed up this process intentionally, mutilating themselves and twisting their arms into a tangled mess. The source of this bizarre maternal behavior seems to be the optic gland, an organ similar to the pituitary gland in mammals. For years, just how this gland triggered the gruesome death spiral was unclear. But in a new study published May 12 in Current Biology, researchers from the 天美影视传媒, the University of Chicago and the University of Illinois Chicago show that the optic gland in maternal octopuses undergoes a massive shift in cholesterol metabolism, resulting in dramatic changes in the steroid hormones produced. Alterations in cholesterol metabolism in other animals, including humans, can have serious consequences on longevity and behavior, and the team believes this reveals important similarities in the functions of these steroids across the animal kingdom 鈥 in soft-bodied cephalopods and vertebrates alike.

All forest fire smoke is bad for people, but not all fires in forests are bad. This is the conundrum faced by experts in forest management and public health: Climate change and decades of fire suppression that have increased fuels are contributing to larger and more intense wildfires and, in order to improve forest health and reduce these explosive fires, prescribed and managed fire is necessary. Video: Experts collaborate to troubleshoot necessary fires and harmful smoke   Journalists: Download soundbites…

The flashing of a nearby star drew the attention of a team of astronomers, who discovered that it is part of a rare and mysterious system. As they report in a paper published May 4 in Nature, the stellar oddity appears to be a 鈥渂lack widow binary鈥 鈥 a type of system consisting of a rapidly spinning neutron star, or pulsar, that is circling and slowly consuming a smaller companion star, as its arachnid namesake does to its mate.

Scientists once thought that post-starburst galaxies scattered all of their gas and dust 鈥 the fuel required for creating new stars 鈥 in violent bursts of energy, and with extraordinary speed. Now, a team led by 天美影视传媒 postdoctoral researcher Adam Smercina reports that these galaxies don鈥檛 scatter all of their star-forming fuel after all. Instead, after their supposed end, these dormant galaxies hold onto and compress large amounts of highly concentrated, turbulent gas. But contrary to expectation, they鈥檙e not using it to form stars.

Former UW Dean of the College of Arts & Sciences Robert Stacey will speak to the graduates of the classes of 2020 and 2021 when they return to Alaska Airlines Field at Husky Stadium for an in-person celebration on Sunday, June 12.

Space urgently needs special legal protection similar to that given to land, sea and atmosphere to protect its fragile environment, argues a team of scientists. The scientific, economic and cultural benefits of space should be considered against the damaging environmental impacts posed by an influx of space debris 鈥 roughly 60 miles above Earth鈥檚 surface 鈥斅爁ueled by the rapid growth of so-called satellite mega-constellations. In a paper published April 22 in Nature Astronomy, the authors assert that space is an important environment to preserve on behalf of professional astronomers, amateur stargazers and Indigenous peoples.

Researchers have discovered that light 鈥 from a laser 鈥 can trigger a form of magnetism in a normally nonmagnetic material. This magnetism centers on the behavior of electrons 鈥渟pins,鈥 which have a potential applications in quantum computing. Scientists discovered that electrons within the material became oriented in the same direction when illuminated by photons from a laser. By controlling and aligning electron spins at this level of detail and accuracy, this platform could have applications in quantum computing, quantum simulation and other fields. The experiment, led by scientists at the 天美影视传媒, the University of Hong Kong and the Pacific Northwest National Laboratory, was published April 20 in Nature.

The first results of research led by the 天美影视传媒 into handgun carrying by young people growing up in rural areas has found six distinct patterns for when and how often these individuals carry a handgun. The patterns, or 鈥渓ongitudinal trajectories,鈥 suggest that youths in rural areas differ in some ways from their urban counterparts when it comes to handgun carrying and provide information for programs designed to help prevent firearm violence and injury. 鈥淏ecause firearms in many rural…

With the start of spring quarter on March 28, face masks became optional 鈥 but still recommended 鈥 inside most UW facilities. In light of the policy change, UW News spoke with several experts about what to expect on campus, how the current science and transmission rates inform our policy, and emotions and feelings we may experience as a result of removing our face coverings.

The 天美影视传媒 Board of Regents last week approved the development plan for the first major project in the UW鈥檚 newly named Portage Bay Crossing area on the west side of the Seattle campus. The Regents approved a ground lease of the property at Site W27 to Wexford Science + Technology and a lease of building space by the University.

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, 天美影视传媒 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…

Mindfulness meditation is a stress-management practice with ancient lineage that cultivates nonjudgmental awareness of the present moment, often by directing attention to the physical sensations of breathing. Initially inspired by centuries-old Buddhist practices consisting of philosophies and meditations together, today a secular version of mindfulness 鈥 consisting of meditations alone 鈥 is becoming increasingly popular.

天美影视传媒鈥檚 147th commencement ceremonies are scheduled to return this June to in-person celebrations in Alaska Airlines Field at Husky Stadium for the first time since 2019. Similar in-person commencement ceremonies are being planned for UW Bothell and UW Tacoma.

Scientists at the 天美影视传媒 and Emory University report that an antibiotic sprayed on orchard crops to combat bacterial diseases slows the cognition of bumblebees and reduces their foraging efficiency. The study, published Feb. 9 in the Proceedings of the Royal Society B, focused on streptomycin, an antibiotic used increasingly in U.S. agriculture during the past decade.

An experiment conducted on 10 farms across the U.S. suggests that crops from farms following soil-friendly practices for at least five years have a healthier nutritional profile than the same crops grown on neighboring, conventional farms. Researchers believe soil microbes and fungi boost certain beneficial minerals, vitamins and phytochemicals in the crops.

An international research team, including scientists from the 天美影视传媒, has established a new upper limit on the mass of the neutrino, the lightest known subatomic particle. In a paper published Feb. 14 in Nature Physics, the collaboration 鈥 known as the Karlsruhe Tritium Neutrino Experiment or KATRIN 鈥 reports that the neutrino鈥檚 mass is below 0.8 electron volts, or 0.8 eV/c2. Honing in on the elusive value of the neutrino鈥檚 mass will solve a major outstanding mystery in particle physics and equip scientists with a more complete view of the fundamental forces and particles that shape ourselves, our planet and the cosmos.

Using powerful tools and techniques developed in the field of structural biology, researchers at the 天美影视传媒 and Scripps Research have discovered new details about the human immunodeficiency virus, HIV. The findings bring into focus the basic architecture of the virus just above and below its surface and may help in the design and development of a vaccine that can protect against AIDS. These detailed findings include 3D views of the structure and position of the virus鈥 envelope 鈥渟pike鈥…