In this month’s Three-Minute Egghead, Sarah Stewart and Simon Lock talk about synestias. A synestia is a new type of planetary object, they proposed, formed when a giant collision between planet-size objects creates a mass of hot, vaporized rock spinning with high angular momentum. Synestias could be an important stage in planet formation, and we might be able to find them in other solar systems.
By Dawn Rowe
The UC Davis Mouse Biology Program (MBP) has received an award of $414,000 from the National Institutes of Health to move towards sustainable, environment-friendly technology for its high-containment vivarium for mutant mice. The grant will also improve animal health and welfare, ergonomics for vivarium staff, and operational efficiencies.
Going ‘green” is a multi-step process that will take place over the next 12 months, and led by Kristin Grimsrud, associate director of vivaria and veterinary care for the program.
Virus-suppressing Bacteria Could Control Transmission by Mosquitoes
Mosquitos infected with the bacteria Wolbachia are significantly worse vectors for dengue virus, but how to establish and spread Wolbachia in an urban mosquito population is unclear. A study published May 30 in the open access journal PLOS Biology shows that over time, strategic releases of mosquitoes infected with the dengue-suppressing bacteria may be enough to allow the virus-resistant insects to spread across large cities.
The Research Center of the Specialty Coffee Association (SCA) is teaming up with the UC Davis Coffee Center to embark on a two-year project to re-evaluate the scientific assumptions, measurement tools, sensory information, and – most importantly – consumer research that forms the foundation of the coffee industry’s fundamental understanding of coffee brewing.
This research is underwritten with funding from Breville, which produces high-end appliances, including coffee and tea equipment.
In this episode of our Three Minute Egghead podcast, UC Davis plant biologist Siobhan Brady talks about her work on roots.
Roots are the key innovation that allowed plants to conquer the land. They allow a plant to explore its environment, seeking out water and nutrients. A cell type within roots called xylem transports water and also provides support for land plants, allowing them to grow swiftly like a field of corn or reach towering heights of a sequoia.
By Larry O’Hanlon
Scientists have developed snapshots of the likelihood of major earthquakes occurring in megacities around the world using a new statistical approach for estimating earthquake risk. The work will be presented today, May 22 at the joint meeting of the Japan Geoscience Union and the American Geophysical Union in Chiba, Japan.
By Karen Nikos-Rose
Are you the kind of person who, at a party, tends to be surrounded by friends in the middle of the crowd, or do you prefer to find a quiet corner where you can sit and talk? Recent work by scientists at UC Davis shows that wild baboons behave similarly to humans — with some animals consistently found in the vanguard of their troop while others crowd to the center or lag in the rear.
By Becky Oskin
Chronicling Earth’s past temperature swings is a basic part of understanding climate change. One of the best records of past ocean temperatures can be found in the shells of marine creatures called foraminifera.
Known as “forams” for short, these single-celled plankton build microscopic calcite shells. When forams die, their shells fall to the ocean floor and accumulate in sediments that provide a record of past climate. The surface-feeding plankton are natural thermometers because the chemical makeup of foram shells is linked to the environmental conditions they grow in. For example, the levels of magnesium in foram shells reflect the seawater temperature in which they lived.
By Diane Nelson
Our genes can influence how we respond to stress. Science shows that some people are more genetically predisposed than others to develop depression and anxiety in response to stressful situations.
What’s more, researchers say that chronic exposure to stressful conditions—such as poverty, family discord, and poor nutrition—can alter the way genes behave in children and adolescents, making them more susceptible to depression, anxiety, and other negative effects of stress.
By Trina Wood
UC Davis vector biologist Greg Lanzaro is taking part in the newly-announced UC Irvine Malaria Initiative to genetically engineer new strains of mosquitoes to fight malaria in Africa. The project, led by UCI’s pioneering vector biologist Anthony James, will bring together experts in molecular biology, entomology, public health and community engagement from across the UC system.