A convergence of factors is propelling a market rollout of the hydrogen fuel cell vehicle, according to a new study. A key to hydrogen’s potential success is a new smart solution that clusters hydrogen fuel infrastructure in urban or regional networks, limiting initial costs and enabling an early market for the technology before committing to a full national deployment.
Inspired by the discovery of “race track memory”...
California’s drought will deal a severe blow to Central Valley irrigated agriculture and farm...
A new approach to integrated circuits, combining...
Why zebras have black and white stripes is a question that has intrigued scientists and spectators for centuries. A research team in California has examined this riddle systematically and have found that biting flies, including horseflies and tsetse flies, are the evolutionary driver for zebra stripes.
Fresh banana, a waft of flowers, blueberry: the scents in Shota Atsumi's laboratory in the Univ. of California, Davis Dept. of Chemistry are a little sweeter than most. That's because Atsumi and his team are engineering bacteria to make esters, molecules widely used as scents and flavorings, and also as basic feedstock for chemical processes from paints to fuels.
Strange events have long been linked to nights of a full moon, though careful scrutiny dispels any association. So, when signals bounced off the lunar surface returned surprisingly faint echoes on full moon nights, scientists sought an explanation in reason rather than superstition. Still, the most compelling evidence arrived during another event that once evoked irrational fears, on a night when Earth's shadow eclipsed the full moon.
Gasoline-like fuels can be made from cellulosic materials such as farm and forestry waste using a new process invented by chemists at the Univ. of California, Davis. The process could open up new markets for plant-based fuels, beyond existing diesel substitutes.
"Where do new genes come from?" is a long-standing question in genetics and evolutionary biology. A new study from researchers at the Univ. of California, Davis, published in Science Express, shows that new genes are created from non-coding DNA more rapidly than expected.
Blood clots play an unexpected role in protecting the body from the deadly effects of bacteria by absorbing bacterial toxins, researchers have found. Even with modern antibiotics, septic shock from bacterial infections afflicts about 300,000 people a year in the U.S., with a mortality rate of 30 to 50%. Septic shock is caused by Gram-negative bacteria, which release a toxin called lipopolysaccharide or endotoxin.
Making hydrogen easily and cheaply is a dream goal for clean, sustainable energy. Bacteria have been doing exactly that for billions of years, and now chemists at the Univ. of California, Davis and Stanford Univ. are revealing how they do it, and perhaps opening ways to imitate them.
New research from the Univ. of California, Davis shows that the tiny proportion of a cell's DNA that is located outside the cell nucleus has a disproportionately large effect on a cell's metabolism. The work, with the model plant Arabidopsis, may have implications for future treatments for inherited diseases in humans.
Stem cell technology has long offered the hope of regenerating tissue to repair broken or damaged neural tissue. Findings from a team of Univ. of California, Davis investigators have brought this dream a step closer by developing a method to generate functioning brain cells that produce myelin, the fatty, insulating sheath essential to normal neural conduction.
The ergodic theorem, proposed by mathematician George Birkhoff in 1931, holds that if you follow an individual particle over an infinite amount of time, it will go through all the states that are seen in an infinite population at an instant in time. Experiments by biochemists in California show for the first time that the ergodic theorem can be demonstrated by a collection of individual protein molecules.
A new study in California shows that neural cells require zinc uptake through a membrane transporter referred to as ZIP12. If that route is closed, neuronal sprouting and growth are significantly impaired and is fatal for a developing embryo. The study highlights how parts of the brain maintain their delicate balance of zinc, an element required in minute but crucial doses.
Engineers in California have developed new image processing techniques for rapid exploration and characterization of structural fires by small Segway-like robotic vehicles. Thermal data recorded by the robot’s small infrared camera is maps it onto a 3-D scene created by a pair of stereo cameras, producing a virtual reality picture that can be used by first responders as the robot navigates a building.
If the climate continues to evolve as predicted by the Intergovernmental Panel on Climate Change, the United States stands little to no chance of satisfying its current biofuel goals, according to a new study by Rice Univ. and the Univ. of California, Davis. The recently published study suggests that in 40 years, a hotter planet would cut the yield of corn grown for ethanol in the U.S. by an average of 7%.
Striking a blow at foodborne diseases, the 100K Pathogen Genome Project at the University of California, Davis today announced that it has sequenced the genomes of its first 10 infectious microorganisms, including strains of Salmonella and Listeria.
Meeting the demand for more data storage in smaller volumes means using materials made up of ever-smaller magnets, or nanomagnets. One promising material for a potential new generation of recording media is an alloy of iron and platinum with an ordered crystal structure.
Waterproof fabrics that whisk away sweat could be the latest application of microfluidic technology developed by bioengineers at the University of California, Davis. The new fabric works like human skin, forming excess sweat into droplets that drain away by themselves, says inventor Tingrui Pan.
Computer simulations of water under extreme pressure are helping geochemists understand how carbon might be recycled from hundreds of miles below the Earth's surface. Carbon compounds are the basis of life, provide most of our fuels and contribute to climate change. The cycling of carbon through the oceans, atmosphere, and shallow crust of the Earth has been intensively studied, but little is known about what happens to carbon deep in the Earth.
Scientists at the University of California, Davis have, for the first time, developed a system that can determine which types of air particles that pollute the atmosphere are the most prevalent and most toxic. Previous research has shown that air pollution containing fine and ultrafine particles is associated with asthma, heart disease, and premature death. This new study marks the first time that researchers have conducted source-oriented sampling of these particles in the atmosphere.
Ever since Austrian scientist Erwin Schrodinger put his unfortunate cat in a box, his fellow physicists have been using something called quantum theory to explain and understand the nature of waves and particles. But a new paper by physics professor Andreas Albrecht and graduate student Dan Phillips at the University of California, Davis makes the case that these quantum fluctuations actually are responsible for the probability of all actions, with far-reaching implications for theories of the universe.
Working with patients with electrodes implanted in their brains, researchers in California and Texas have shown for the first time that areas of the brain work together at the same time to recall memories. The unique approach promises new insights into how we remember details of time and place.
Using an exotic form of silicon could substantially improve the efficiency of solar cells, according to computer simulations by researchers at the University of California, Davis and in Hungary. Solar cells are based on the photoelectric effect: A photon, or particle of light, hits a silicon crystal and generates a negatively charged electron and a positively charged hole. Collecting those electron-hole pairs generates electric current. Conventional solar cells generate one electron-hole pair per incoming photon, and have a theoretical maximum efficiency of 33%. One exciting new route to improved efficiency is to generate more than one electron-hole pair per photon.
The argument that those who have fuel-efficient cars drive them more and hence use more energy is overplayed and inaccurate, a University of California, Davis economist and his co-authors say in a comment article published in Nature.
Chemists at the University of California, Davis have engineered blue-green algae to grow chemical precursors for fuels and plastics—the first step in replacing fossil fuels as raw materials for the chemical industry.
Meteorites that had fallen from an asteroid impact that lit up the skies over California and Nevada in April were quickly recovered by scientists and recent studies report that this space rock is an unusual example from a rare group known as carbonaceous chondrites, which contain some of the oldest material in the solar system. It is also complex, containing molecules such as water and amino acids.
In the most comprehensive study to date on how storage temperature affects wines with different packaging systems, University of California, Davis researchers found that bag-in-box wine is more vulnerable to warmer storage temperatures than bottled wine.
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