Tag Archives: time

UA Astronomers Show Exoplanet Changing Over Time

By using a novel imaging technique, it was discovered that the exoplanet known as 2M1207b rotates twice as fast as Earth and has patchy clouds.

Using NASA’s Hubble Space Telescope, astronomers at the University of Arizona have taken the first direct, time-resolved images of an exoplanet. Their results were published in a recent edition of the Astrophysical Journal. (more…)

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Time adds a wrinkle to nature and nurture

Nature and nurture have found a new companion — historical context.

A new study has produced the best evidence yet that the role of genetics in complex traits, including obesity, varies over time. Both the era in which scientific research is conducted and the era in which subjects were born may have an impact on the degree to which genetic factors are present in scientific data. (more…)

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Fumes Keep Moths from Finding Flowers, Study Discovers

New research by the University of Washington and the UA shows that background odors can interfere with pollinators’ ability to find flowers.

Car and truck exhaust fumes that foul the air for humans also cause problems for pollinators.

In new research on how pollinators find flowers when background odors are strong, University of Washington and University of Arizona researchers have found that both natural plant odors and human sources of pollution can conceal the scent of sought-after flowers.  (more…)

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Black holes do not exist as we thought they did

On January 24, the journal Nature published an article entitled “There are no black holes.” 1 It doesn’t take much to spark controversy in the world of physics…But what does this really mean? In a brief article published on arXiv, a scientific preprint server, Stephen Hawking proposed a theory of black holes that could reconcile the principles of general relativity and quantum physics.

To better understand Hawking’s remarks, Forum interviewed Robert Lamontagne, an astrophysicist at the Department of Physics, Université de Montréal, and Executive Director of the Observatoire du Mont-Mégantic.

What is a black hole? (more…)

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New data compression method reduces big-data bottleneck; outperforms, enhances JPEG

New discovery is rooted in physics and the arts

In creating an entirely new way to compress data, a team of researchers from the UCLA Henry Samueli School of Engineering and Applied Science has drawn inspiration from physics and the arts. The result is a new data compression method that outperforms existing techniques, such as JPEG for images, and that could eventually be adopted for medical, scientific and video streaming applications.

In data communication, scientific research and medicine, an increasing number of today’s applications require the capture and analysis of massive amounts of data in real time.  (more…)

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Invasion in the Desert: Why Some Plant Species are Survivors

Max Li’s research could inform policies to promote sustainable native environments and curb the invasion of alien plant species.

Max Li, a University of Arizona doctoral student in the Department of Ecology and Evolutionary Biology, is studying mechanisms that determine how competing desert plants can coexist with each other and what factors can cause the destruction of this stable coexistence.

His research could help inform policies to curb the spread of invasive species. (more…)

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