Category Archives: Science

UA Alumnus Wins Nobel Prize

Brian P. Schmidt, who graduated from the UA in 1989 with a double major in astronomy and physics, shares this year’s Nobel Prize in Physics with two colleagues for a discovery that has rocked our understanding of the cosmos: The universe is expanding at an ever-faster pace.

In the last years of the 20th century, two teams of researchers set out to race each other to measure the rate of the universe’s expansion, and by extension, unveil how the universe most likely will end. (more…)

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UCLA Study Shows Cell-Penetrating Peptides for Drug Delivery Act Like A Swiss Army Knife

Cell-penetrating peptides, such as the HIV TAT peptide, are able to enter cells using a number of mechanisms, from direct entry to endocytosis, a process by which cells internalize molecules by engulfing them.

Further, these cell-penetrating peptides, or CPPs, can facilitate the cellular transfer of various molecular cargoes, from small chemical molecules to nano-sized particles and large fragments of DNA. Because of this ability, CPPs hold great potential as in vitro and in vivo delivery vehicles for use in research and for the targeted delivery of therapeutics to individual cells. (more…)

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Scientists, Philosophers and Theologians Poised To Ask: “Why Is There Anything?”

Some of the world’s most renowned scholars, in fields as diverse as astrophysics, philosophy, and religious studies, will convene on the Yale campus October 6-9 to ponder the most fundamental existential question of all: “Why Is There Anything in the Universe?”

The idea for a conference to discuss a philosophical question that has perplexed great minds throughout the ages grew out of an informal conversation and debate over a cup of coffee between Yale professors Priyamvada Natarajan, a cosmologist in the Astronomy department, and Denys Turner, who teaches in the department of Religious Studies and the Yale Divinity School and is the author of “Eros and Allegory” and “The Darkness of God,” among other titles. Michael Della Rocca, a metaphysician who teaches at the philosophy department, soon joined the effort. James van Pelt, who co-founded Yale’s Initiative in Religion, Science & Technology, was enlisted to coordinate the ambitious, quintessentially trans-disciplinary program, which now includes a stellar roster of physical scientists, theologians and philosophers. (more…)

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Berkeley Lab’s Saul Perlmutter wins Nobel Prize in Physics

BERKELEY, CA — Saul Perlmutter, an astrophysicist at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and a professor of physics at the University of California at Berkeley, has won the 2011 Nobel Prize in Physics “for the discovery of the accelerating expansion of the universe through observations of distant supernovae.” Perlmutter heads the international Supernova Cosmology Project, which pioneered the methods used to discover the accelerating expansion of the universe, and he has been a leader in studies to determine the nature of dark energy.

Perlmutter shares the prize with Brian Schmidt and Adam Riess, leader of the High-z Supernova Search Team and first author of that team’s analysis, respectively, which led to their almost simultaneous announcement of accelerating expansion. (more…)

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Extreme Space Weather at Mercury Blasts the Planet’s Poles

ANN ARBOR, Mich.— The solar wind sandblasts the surface of planet Mercury at its poles, according to new data from a University of Michigan instrument on board NASA’s MESSENGER spacecraft.

The sodium and oxygen particles the blistering solar wind kicks up are the primary components of Mercury’s wispy atmosphere, or “exosphere,” the new findings assert. Through interacting with the solar wind, they become charged in a mechanism that’s similar to the one that generates the Aurora Borealis on Earth. (more…)

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Close Up Look at a Microbial Vaccination Program

*Berkeley Lab Researchers Resolve Sub-nanometer Structure of Cascade, an Ally for Human Immune System*

A complex of proteins in the bacterium E.coli that plays a critical role in defending the microbe from viruses and other invaders has been discovered to have the shape of a seahorse by researchers with the U.S Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab). This discovery holds far more implications for your own health than you might think.

In its never-ending battle to protect you from infections by bacteria, viruses, toxins and other invasive elements, your immune system has an important ally – many allies in fact. By the time you reach adulthood, some 90-percent of the cells in your body are microbial. These microbes – collectively known as the microbiome – play a critical role in preserving the health of their human host. (more…)

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