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University of Utah


Where does water go when it doesn't flow?

A new study by University of Utah researchers shows that two-thirds of the remaining water after rainfall is released by plants, while more than a quarter lands on leaves and evaporates. The study also found that only 38% of water entering groundwater interacts with soil before reaching streams and groundwater.

SourceUniversity of Utah·JournalScience·DateJul 9, 2015

Why big dinosaurs steered clear of the tropics

The study reveals that wild climate swings in the tropics made it difficult for large, warm-blooded dinosaur herbivores to survive. The researchers found that wildfires swept the landscape during arid regimes, continually reshaping vegetation available for plant-eating animals.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateJun 15, 2015

Computing at the speed of light

Engineers created an ultracompact beamsplitter to divide light waves into two channels, bringing researchers closer to silicon photonic chips that compute with light instead of electrons. This technology could significantly increase the power and speed of machines such as supercomputers, data center servers, and mobile devices.

SourceUniversity of Utah·JournalNature Photonics·DateMay 18, 2015

New tool to save salmon: Isotope tracking

Researchers develop new method to trace salmon migration and habitat use by analyzing ear bones for strontium signatures. This technique may aid conservation efforts for threatened salmon populations facing climate change, industrial development, and overfishing.

SourceUniversity of Utah·JournalScience Advances·DateMay 15, 2015

When do mothers need others?

Researchers found that early human families likely formed around cooperating groups of mothers and children, not just adult relatives. As mothers became more successful at producing children, they needed the cooperation of other adults to care for their dependents.

SourceUniversity of Utah·JournalJournal of Human Evolution·DateMay 8, 2015

Improving geothermal energy

A University of Utah team has been awarded a $400,000 grant to study new methods for developing geothermal energy in areas where it's not currently feasible. The goal is to discover ways to create underground flow that will allow communities to construct sustainable and clean geothermal systems.

Calculating how the Pacific was settled

A University of Utah anthropologist analyzed statistics to determine how Pacific islands were settled between 3,500 and 900 years ago. The study found that seafarers traveled mostly against prevailing winds and sought easily visible islands, rather than relying on distance or resource availability.

SourceUniversity of Utah·JournalAmerican Antiquity·DateApr 21, 2015

Fighting the next generation of cyberattacks

A team of US computer scientists are working on an analyzer that can hunt down algorithmic attacks, a new form of vulnerability that is nearly impossible to find with today's technology. The software will perform a mathematical simulation of the software to predict what will happen in the event of an attack.

A stiff new layer in Earth's mantle

A new study by University of Utah researchers reveals the existence of an unknown layer inside Earth's lower mantle, where rock gets three times stiffer. This stiffness increase may explain why slabs of sinking tectonic plates stall and thicken at a depth of 930 miles underground.

SourceUniversity of Utah·JournalNature Geoscience·DateMar 23, 2015

The cost of dominance

A series of University of Utah studies found that hostile-dominant personality styles are associated with increased vulnerability to cardiovascular disease, including higher blood pressure and severe atherosclerosis. In contrast, warm-dominant styles are linked to lower blood pressure and more support in marriages.

Early herders' grassy route through Africa

Researchers found that early herders from northern Africa could travel past Lake Victoria on their way to southern Africa due to the area's grassy landscape, not a tsetse fly-infested environment. This new discovery sheds light on the migration route of early human populations.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateMar 9, 2015

Water in smog may reveal pollution sources

Researchers have found combustion water in Salt Lake City's winter inversions, with cars and home heating being the largest sources. The study provides a new method for measuring greenhouse gas emissions and studying urban weather.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateMar 2, 2015

New filter could advance terahertz data transmission

University of Utah engineers create a filter for separating different frequencies in the terahertz spectrum, a key step towards utilizing this bandwidth for commercial use. The filter can be fabricated using an off-the-shelf inkjet printer and has the potential to boost data transmission rates by thousands of times.

SourceUniversity of Utah·JournalOptica·DateFeb 27, 2015

Better catalysts, made-to-order

University of Utah scientists develop computational model to predict catalyst performance, allowing for the design of more efficient and selective catalysts. The model uses big data analysis to identify structural features that correlate with reaction selectivity.

SourceUniversity of Utah·JournalScience·DateFeb 12, 2015

Shade coffee is for the birds

Research by University of Utah-led team finds shade coffee to be bird-friendly, but some species thrive in forest habitats. The study suggests organic shade coffee is the best choice for biodiversity, with native trees and no chemicals.

SourceUniversity of Utah·JournalBiological Conservation·DateFeb 4, 2015

Predatory sea snails produce weaponized insulin

A new study reveals that cone snails add a unique form of insulin to their venom cocktail, which disrupts blood glucose levels and causes hypoglycemic shock in fish. The snail insulin may help unlock secrets of insulin function and energy metabolism.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateJan 19, 2015

Men want commitment when women are scarce

A study among the Makushi people in Guyana reveals that men are more likely to pursue long-term relationships when women are in short supply. The researchers found that when women are abundant, men tend to seek multiple short-term partners, but when they are scarce, men value and attempt to maintain a single partner.

SourceUniversity of Utah·JournalRoyal Society Open Science·DateJan 13, 2015

Past global warming similar to today's

Researchers found that ancient global warming resembled modern climate shift, involving two pulses of carbon emissions. The Paleocene-Eocene thermal maximum, which occurred 56 million years ago, showed similar rates of carbon release to human fossil-fuel emissions today.

SourceUniversity of Utah·JournalNature Geoscience·DateDec 15, 2014

Ebola virus may replicate in an exotic way

A study by University of Utah researchers found a unique mechanism used by the Ebola virus and other related viruses to replicate. The discovery, which was made possible through computer simulations, may lead to new targets for antiviral drugs within five to 10 years.

SourceUniversity of Utah·JournalPLOS Computational Biology·DateDec 11, 2014

Viruses impaired if their targets have diverse genes

A new study published in the British journal Proceedings of the Royal Society B suggests that increased genetic diversity can limit the spread and severity of viral infections in livestock and endangered species. Researchers found that viruses replicated more slowly and caused less severe disease when transmitted through genetically di...

Why lizards have bird breath

Scientists at the University of Utah have found that iguanas, not known for high-capacity aerobic fitness, have bird-like breathing patterns in their lungs. This discovery bolsters the case that unidirectional airflow evolved long before the first birds, suggesting a common ancestor among lizards, snakes, crocodiles, and dinosaurs.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateNov 17, 2014

Did men evolve navigation skills to find mates?

A University of Utah study found that men with better spatial skills traveled farther and had more children with multiple women. The researchers tested members of two African tribes and discovered a link between spatial ability, navigation, and reproductive success.

SourceUniversity of Utah·JournalEvolution and Human Behavior·DateNov 12, 2014

Tree diseases can help forests

A University of Utah study found that pathogens killing tree seedlings in drier forests allow more diverse tree species to thrive in the wetter Caribbean environment. This separation is crucial for conservation planning and understanding how tree species adapt to climate change.

SourceUniversity of Utah·JournalJournal of Ecology·DateNov 11, 2014

Better bomb-sniffing technology

Researchers have created a new material that can detect explosives and toxic gases in seconds, offering four advantages over current detectors: sensitivity, accuracy, speed, and cost-effectiveness. The breakthrough could lead to flexible solar panels and improved public safety.

SourceUniversity of Utah·JournalAdvanced Materials·DateNov 4, 2014

Jet-fueled electricity at room temperature

Researchers have successfully developed a room-temperature fuel cell that uses jet fuel and enzymes to produce electricity. The new cells can be used to power portable electronics, off-grid power, and sensors. This breakthrough could lead to more efficient and cost-effective energy solutions.

SourceUniversity of Utah·JournalACS Catalysis·DateNov 4, 2014

In Amazon wars, bands of brothers-in-law

A new study by University of Utah anthropologist Shane Macfarlan challenges the idea that humans naturally fight like chimpanzees. Instead, Yanomamö men form long-term alliances with other villages through marriage and cooperation, which leads to increased social status and benefits.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateOct 27, 2014

Teens still sending naked selfies

A new study from the University of Utah confirms that substantial numbers of teens are engaging in sexting, sending and receiving explicit sexual images via cellphone. The study found nearly 20% of students had sent a nude photo, while 38% had received such a picture, highlighting the potential risks and consequences of this behavior.

SourceUniversity of Utah·JournalComputers in Human Behavior·DateOct 8, 2014

Talking to your car is often distracting

Two new studies found that using hands-free, voice-controlled automobile infotainment systems, such as Siri and MyLink, can divert attention from driving. The Toyota and Hyundai systems showed promise in being less distracting, while Apple's Siri was the most distracting, even when used as a hands-free device.

Firelight talk of the Kalahari Bushmen

A University of Utah study suggests that stories told over firelight helped human culture and thought evolve by reinforcing social traditions and promoting harmony. Researchers analyzed scores of daytime and firelight conversations among !Kung Bushmen, finding that nighttime discussions involved more storytelling and imaginative thought.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·DateSep 22, 2014

Nuclear spins control current in plastic LED

Physicists at the University of Utah have developed a method to control electrical current in a cheap, plastic LED using nuclear spins. They achieved this at room temperature without strong magnetic fields, bringing the study closer to practical machines that work spintronically.

SourceUniversity of Utah·JournalScience·DateSep 18, 2014

Kangaroos win when Aborigines hunt with fire

A University of Utah researcher found that the Aboriginal Martu people's traditional hunting and fire practices help maintain ecosystem stability, increasing kangaroo populations. The study suggests encouraging small-scale burning to bolster wildlife populations in certain areas.

SourceUniversity of Utah·JournalHuman Ecology·DateAug 3, 2014

Fecal transplants let packrats eat poison

Researchers found that bacteria in the gut, rather than liver enzymes, are crucial for allowing herbivores to feed on toxic plants. Fecal transplants with microbes from creosote-eaters enabled woodrats to eat toxic creosote bushes, confirming their importance in adapting to new diets.

SourceUniversity of Utah·JournalEcology Letters·DateJul 20, 2014

New view of Rainier's volcanic plumbing

Scientists have created a detailed picture of Mount Rainier's deep volcanic plumbing, revealing a partly molten rock reservoir approximately 30 percent molten. The study used both seismic imaging and magnetotelluric measurements to capture the melting process that feeds magma into the crustal reservoir.

SourceUniversity of Utah·JournalNature·DateJul 16, 2014

A hotspot for powerful cosmic rays

Researchers at the Telescope Array observatory detected a disproportionate number of high-energy cosmic rays emanating from a specific area in the northern sky. The discovery provides a promising lead in identifying the sources of these enigmatic particles, which are believed to originate from beyond our galaxy.

SourceUniversity of Utah·JournalThe Astrophysical Journal Letters·DateJul 8, 2014

New plant species from the heart of Texas

Scientists at the University of Utah have identified a new plant species found in Valentine, Texas, as Solanum cordicitum. The genus Solanum includes over 1,500 species, including poisonous nightshades and edible crops like tomatoes and potatoes.

SourceUniversity of Utah·JournalJournal of the Botanical Research Institute of Texas·DateJul 8, 2014

Silent mutations speak up

Researchers at the University of Utah found that multiple silent mutations greatly impact protein translation, with some causing a five-fold decrease in speed. The study also reveals that codon context matters, altering translation efficiency by up to 30-fold.

SourceUniversity of Utah·JournalPLOS Genetics·DateJun 5, 2014

Watching HIV bud from cells

University of Utah researchers developed a way to observe HIV budding without interfering with the process, showing ALIX's involvement in the late stages of virus replication. The study used digital camera and microscope technology to make movies and photos of the budding process.

SourceUniversity of Utah·JournalPLOS ONE·DateMay 16, 2014