Tag Archives: university of arizona

Testing Water for Antibiotic-Resistant Bacteria

Antibiotic-resistant bacteria are an important concern for disease prevention in the future. UA doctoral candidate Victoria Obergh is testing Tucson-area wastewater systems to find out where these bacteria can be found.

In the lab, Victoria Obergh transfers bacterial DNA samples into a tray. A graduate student in the University of Arizona’s Department of Soil, Water and Environmental Science, part of the College of Agriculture and Life Sciences, Obergh works with the samples under a sterile hood sporting an ultraviolet light to kill any unwanted DNA. (more…)

Read More

Companion planets can increase old worlds’ chance at life

Having a companion in old age is good for people — and, it turns out, might extend the chance for life on certain Earth-sized planets in the cosmos as well.

Planets cool as they age. Over time their molten cores solidify and inner heat-generating activity dwindles, becoming less able to keep the world habitable by regulating carbon dioxide to prevent runaway heating or cooling. (more…)

Read More

Galápagos Hawks Hand Down Lice Like Family Heirlooms, Study Finds

A UA-led study provides some of the first evidence for the hypothesis of co-divergence between parasites and hosts acting as a major driver of biodiversity.

Say what you will about the parasitic lifestyle, but in the game of evolution, it’s a winner. (more…)

Read More

Remarkable Résumé: UA Student Journalist’s Career Includes CNN, New York Times

UA journalism student Amer Taleb has already had a stellar undergraduate career, working in newsrooms across the nation.

Amer Taleb‘s journalistic talent took him to Japan this summer, where he and other winners of the Roy W. Howard National Collegiate Reporting Competition toured multiple cities on a nine-day study trip. While in Hiroshima, he bought a silver keychain in the shape of a coin that was inscribed with a charge to work toward a more peaceful world. (more…)

Read More

Tiniest Catch: UA Scientists’ Fishing Expedition Reveals Viral Diversity in the Sea

Using bacteria as bait, UA scientists caught wild ocean viruses and found that the genetic lines between virus types in nature are less blurred than previously thought.

A fishing expedition of microscopic proportions led by University of Arizona ecologists revealed that the lines between virus types in nature are less blurred than previously thought. (more…)

Read More

UA-Developed Technology Helps Find Happy Middle Between Low Temps and High Bills

UA researchers have created a first-of-its-kind thermostat add-on that reliably predicts electricity costs, putting consumers in control of balancing their comfort and budget.

Researchers at the University of Arizona, with the support of Tech Launch Arizona, are one step closer to giving consumers something they’ve never had before: a way to easily and instantly make informed decisions about the trade-off between comfort and the cost of electricity for heating and cooling, which typically accounts for half of a home’s electricity bill. (more…)

Read More

Were Dinosaurs Cold-Blooded or Warm-Blooded? Neither, Study Finds

A study that originated in the lab of UA biologist Brian J. Enquist with UA alum John Grady suggests dinosaurs had a metabolism that was neither warm- nor cold-blooded, but somewhere in between.

Dinosaurs dominated the Earth for more than 100 million years, but all that remains today are bones. This has made it difficult to solve a long-standing and contentious puzzle: Were dinosaurs cold-blooded animals that lumbered along or swift warm-blooded creatures like those depicted in “Jurassic Park”?  (more…)

Read More

Playing Pool with Carbon Atoms

UA physicists have discovered how to change the crystal structure of graphene. The finding could lead to smaller and faster microprocessors.

A University of Arizona-led team of physicists has discovered how to change the crystal structure of graphene, more commonly known as pencil lead, with an electric field, an important step toward the possible use of graphene in microprocessors that would be smaller and faster than current, silicon-based technology.  (more…)

Read More