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More Fresh Air in Classrooms Means Fewer Absences

Berkeley Lab study finds correlation between higher illness absences and lower ventilation rates in California elementary schools.

If you suspect that opening windows to let in fresh air might be good for you, a new study by scientists at Lawrence Berkeley National Laboratory (Berkeley Lab) has confirmed your hunch. Analyzing extensive data on ventilation rates collected from more than 150 classrooms in California over two years, the researchers found that bringing classroom ventilation rates up to the state-mandated standard may reduce student absences due to illness by approximately 3.4 percent. (more…)

All for One: What Makes an Individual

Science

Life as we know it has certain properties that are consistent regardless whether you’re looking at a bacterial colony in a petri dish or a primate colony in South America. Rick Michod, UA professor and department head of ecology and evolutionary biology, has received $1.3 million from NASA to investigate what properties of biology define an individual organism.

Many things in life are not fair. But some things are at least consistent.

For example, all life as we know it has certain universal properties, which presumably define how life would be organized anywhere it evolved in the universe, said Richard Michod, professor and head of the department of ecology and evolutionary biology at the University of Arizona. (more…)

‘Sweet Dreams (Are Made of Chemistry)’

Education, Science

Professor Neil Garg’s students turn organic chemistry reactions into song

When Eurythmics recorded their hit song “Sweet Dreams (Are Made of This)” in 1983, they somehow neglected to include chemical equations. Thirty years later, UCLA undergraduates Jessica Lee, Emily Chuang and Christine Nguyen have corrected the omission.
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Older males make better fathers says new research on beetles

Science

Researchers at the University of Exeter found that older male burying beetles make better fathers than their younger counterparts.

The study found that mature males, who had little chance of reproducing again, invested more effort in both mating and in parental care than younger males.

The study, published in the journal Proceedings of the Royal Society of London – B, considered how the likelihood of paternity influenced the way that males cared for young. Older males were good fathers and looked after the young even when they were unsure whether the offspring were theirs. Younger males, who had a higher chance of reproducing again, tended to care less for offspring, particularly when they were uncertain of their paternity. (more…)

‘Love and Romance’, the way I feel it: Hossam (23)

Culture, Interview, Media

Q. What is love? How would you define it?

Hossam: I would say ‘love’ is something that has to be from inside from your heart. It doesn’t come out very quickly. People who are falling in love has to get to know each other first, they have to know whether they understand each other, they have to know whether they fit to each other, and these ways we can know whether we fit to each other or not, if we love each other or not. But of course, that needs some time. So that’s how I define it actually.
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Step into an anechoic chamber where sounds go to die

Technology

Microsoft’s new film series “On the Whiteboard” explores topics at the intersection of technology and culture, and introduces people, places and things behind the products.

REDMOND, WASH. – June 24, 2013 – In the second episode of Microsoft’s new film series “On the Whiteboard,” Editor Pamela Woon exposes an anechoic chamber of secrets. It’s an isolated space where you can actually hear blood pumping through your veins – because in here, there’s no echo. In this heavily padded room built on top of springs, sounds don’t bounce back, they’re absorbed. (But your body might, since you’re walking on springs.)

Researchers study the sounds of silence here, including testing and analyzing Surface to make sure that click you hear when you snap the kickstand shut is pleasing and robust to the average ear. (more…)

Researchers Find Genetic Diversity Key to Survival of Honey Bee Colonies

Environment

When it comes to honey bees, more mates is better. A new study from North Carolina State University, the University of Maryland and the U.S. Department of Agriculture (USDA) shows that genetic diversity is key to survival in honey bee colonies – a colony is less likely to survive if its queen has had a limited number of mates.

“We wanted to determine whether a colony’s genetic diversity has an impact on its survival, and what that impact may be,” says Dr. David Tarpy, an associate professor of entomology at North Carolina State University and lead author of a paper describing the study. “We knew genetic diversity affected survival under controlled conditions, but wanted to see if it held true in the real world. And, if so, how much diversity is needed to significantly improve a colony’s odds of surviving.” (more…)

Researchers take new look at future Colorado River flows

Environment

The Colorado River provides water for more than 30 million people in the U.S. West, so water managers have been eager to understand how climate change will affect the river’s flow. But scientific studies have produced an unsettling range of estimates, from a modest decrease of 6 percent by 2050 to a steep drop of 45 percent by then. (more…)