University of Arizona in the News

The 2021 Southwest Monsoon has dropped record-setting rainfall and wreaked havoc, triggering flash floods, mudslides and dust storms in multiple states. During July, Tucson's official gauge recorded 8.06 inches of rain – the wettest calendar month in the city’s recorded meteorological history, which dates back more than 125 years. "Maybe the frequency is decreasing because we're getting less of those upper-air triggers to help the storms get organized.

As interest grows around COVID-19 booster shots, there is still a lot of uncertainty around getting a third dose. People with weakened immune systems can already get a booster, but the benefit to everyone else is unclear. Deepta Bhattacharya, a professor of immunobiology at the University of Arizona College of Medicine – Tucson, said that it's clear a booster could be beneficial. A booster, he said, might reduce the chance that a person would get infected and develop symptoms.

In this episode of The Atlas Obscura Podcast, reporters visit a spinning furnace tucked under the football stadium at the University of Arizona, designed to help build giant telescope mirrors.

Some people are trying to get COVID-19 booster shots. Others aren't sure if they need them. Mixed public health messages aren't making personal-health decisions any clearer. The complexity of the body's immune system makes the impact of a booster shot difficult to assess. Antibody levels from any vaccine or natural infection will decline over time, said Deepta Bhattacharya, a professor of immunobiology at the University of Arizona College of Medicine – Tucson.

Experts say people previously infected with the coronavirus may get a significant boost in immunity if they follow up with vaccination. "Antibody levels are really variable after recovering from infections, and those at the lower end of the spectrum might be more susceptible to reinfections,” said Deepta Bhattacharya, a professor of immunobiology at the University of Arizona College of Medicine – Tucson. "But after a single vaccine in people who have recovered from COVID-19, antibodies skyrocket up, including those that neutralize variants of concern."

Because mosquitoes transmit a host of life-threatening diseases, many scientists are interested in the egg-laying behaviours of female mosquitoes and how they might be curbed. In 2019, a team of scientists from the University of Arizona managed to turn off a single gene (known as Eggshell Organising Factor 1), which affects the proteins that provide waterproofing to the developing egg. The result? A life raft that takes on too much water, eventually sinking and killing all the unhatched mosquitoes on board.

Although our sun is considered a quiet star, it is now thought to have repeatedly pelted our planet with enormous eruptions in the not too distant past. Could another occur in the near future? Charlotte Pearson of the Laboratory of Tree-Ring Research at the University of Arizona and a co-author on the paper that examines solar activity, is interviewed.

A new study, led by University of Arizona postdoctoral fellow Matthew Othman, provides insights into how the position and intensity of jet streams in the North Atlantic have changed over the last 1,250 years. The findings predict that by 2060, jet stream locations could move out of the range of natural variability under unabated greenhouse gas emissions, creating dramatic weather for societies on both sides of the Atlantic.

Several efforts designed to reduce greenhouse gas emissions have the added benefit that they reduce the excess heat in urban areas, said Ladd Keith, an assistant professor of planning and sustainable built environments at the University of Arizona. Energy-efficient buildings don't run air conditioners as hard, reducing the heat emitted from those systems. Increasing mass transit options and creating walkable and bikeable environments take cars – which can also heat up the area – off the roads. "We're already doing a lot of things related to heat," Keith said.

As long-term COVID continues to linger in thousands, young people suffering from its residual effects will undoubtedly return to schools and colleges needing more support and accommodation, but with disability infrastructure being underfunded and not widely understood in many colleges, schools will need to re-examine systems they have in place for these students, disability experts said.