Friday, December 9, 2011

Rainbows as Media Stars

Earlier this week, we posted a news release titled "Computer Simulations Shed Light on the Physics of Rainbows," explaining how an international team of researchers led by a Jacobs School computer science graduate student and his professor, simulated rainbows and gained a better understanding of how real rainbows form in the process.
The story has now become quite a hit with news sites and blogs.
It was featured on the home page of ABCNews.com, Discovery Channel news, the New Scientist and CNET.com. In case you missed all the coverage, here are links to some of the stories:

ABCNews.com: Fake Rainbows Lead to Scientific Discovery

CNN Light Years blog: Seeing double: Researchers find rainbow connection

Discovery Channel: Secret of Twinned Rainbows Found in Simulations

MSNBC: Secret of 'Twinned Rainbows' Simulated on a Computer

Science:  "Burgeroids" Cause Double Rainbows

Mashable.com: "But What Does it Mean?" Computer-Generated Rainbows Reveal Some Answers

New Scientist: Rare twin rainbows simulated in 3D

CNET: CGI hackers discovery secret of rainbows

Thursday, December 8, 2011

Computer Simulations That Will Put You Over the Rainbow

Researchers at the Jacobs School of Engineering at UC San Diego, working with an international team of computer scientists and rainbow experts, used computer simulations to help explain how some rare forms of rainbows form.

Watch our narrated slide shows to learn more:





Tuesday, December 6, 2011

New Shu Chien Lab in New Research Building to Investigate Best Environment to Grow Stem Cells

The Sanford Consortium for Regenerative Medicine recently opened its doors on the Torrey Pines Mesa and will be home to 24 principal investigators, including Bioengineering Professor Shu Chien.

Chien’s lab will be dedicated to further developing a technology that allows scientists to identify the best environments to grow stem cells. Creating these environments requires mixing many proteins in a wide range of combinations. The new technology allows researchers to test hundreds of them at once.
Scientists also will investigate the role these proteins, and other factors, including mechanical forces, play in stem cells’ fate. For example, a stiffer matrix can steer the cells toward becoming more like bone cells, while a softer matrix leads to brain-like ones.

Karl Willert, an assistant professor, and David Brafman, a postdoctoral researcher, both in the department of cellular and molecular medicine at UC San Diego, will work with Chien on the project and move their labs to the consortium building.

The team also will work with Organovo, Inc., led by CEO Keith Murphy, on three-dimensional printing of tissues and organs such as blood vessels. Researchers also will work with Richard Rouse, who operates HTS Resources and will develop new printing and spotting technologies.

To learn more about the Sanford Consortium, read this story in This Week @ UC San Diego and this story in the San Diego Union-Tribune.

Monday, December 5, 2011

Computer Science Professor Stefan Savage on Computer Security and Online Data

Stefan Savage, a professor in the computer science department, was invited to contribute a piece in the New York Times' feature "Essays on Computing," now online in the paper's Science section and out in hard copy tomorrow.

Some eye-opening excerpts from the essay are below. The full text can be found here.

"We can expect new threats to directly reflect each new technical innovation in how money is used, moved and stored. Emerging cellphone-based payment systems, automated banking transfers and the increasingly liquid markets for online goods in multiplayer games will all be ripe targets for online crooks."

"The ease with which we adopt online personas and relationships has created a collective blind spot that computer technology is well suited to exploit. Advances in natural-language processing and data mining make it entirely feasible to mint millions of “social bots,” each establishing online friendships with their targets like virtual con men, each building trust over time and delivering personalized messages designed to elicit information, sway opinion or call to action.
This idea, which one of my colleagues has called “social architecture,” completely upends traditional computer security concerns: The threat is not of humans controlling or monitoring our computers, but precisely the converse."

"The Stuxnet worm, designed to sabotage gas centrifuges in Iran, made it clear that computer attacks can have physical, real-world consequences — a particularly troubling precedent because computing capabilities are now embedded in virtually every aspect of our lives. The power we use, the water we drink, the cars, planes and trains we travel in, the elevators and air-conditioning in our buildings, even many of our children’s toys — all are controlled by computers.
A parallel trend, fueled by cheap wireless connectivity, is that these devices are increasingly networked. And while few of these systems have been attacked in anger, it is this very fact that leads most of them to be rife with vulnerabilities — a sheltered ecosystem with no immunity to attacks from an outside invader"

Also, Larry Smarr, director of Calit2 and a computer science professor here at the Jacobs School, wrote an essay for the same feature, titled "An Evolution Toward a Programmable Universe." Read it here.

Where in the United States are the Jacobs School's Zero-Pressure Balloons?

Three teams taking an introductory aerospace engineering course this quarter got a unique opportunity last week: they launched three balloons, for which they designed payload and instrumentation.
The students were hoping the balloons would make it to the East Coast. But the ferocious windstorm that blew through the Southwest derailed their plans.
One balloon landed about 50 miles east of Yuma, Ariz., and was recovered by local residents. Another landed 120 miles south of Ensenada, in Mexico, and was also at a local home. Finally, the third balloon touched down 40 miles east of Kingman, Ariz. It's in a remote mountain area, so Kosmatka plans to contact a local Boy Scout troop to help recover it.
The students' efforts were profiled in this San Diego Union-Tribune story.
Also, read our story on the Jacobs School website.

Thursday, December 1, 2011

Deadlin Extended: Fall Elevator Pitch Competition Entry Deadline



Deadline has been EXTENDED!!

If you've ever had an idea for a business here is your chance to showcase it--and maybe win some money!
1 Page (550 words), $1,000 awarded to the top idea.
The top 8 ideas as evaluated by our judging consortium will pitch their idea live to the audience at our 2011 Winter KickOff in January.
An audience vote will determine who walks away with $1,000.

Link for Submitting Entry: 
http://challenge.ucsd.edu/?page_id=778

Judging Criteria : http://challenge.ucsd.edu/?page_id=26
 
We all have ideas, submit yours!
Deadline: Tomorrow Friday, December 2, 2011 by 11:59pm
http://challenge.ucsd.edu

Wednesday, November 30, 2011

Nurture Affects Gender Differences in Math Abilities, Researcher Says

Nurture plays an important role in shaping math abilities for both men and women, says Moshe Hoffman, a postdoctoral researcher with a joint appointment at the Jacobs School of Engineering and Rady School of Management. That's the conclusion that Hoffman and his Rady School adviser, Uri Gneezy, reached after conducting an extensive study published earlier this year in Proceedings of the National Academy of Sciences.

Hoffman will present his findings during a talk at 2 p.m. today at the Qualcomm Conference Room at Jacobs Hall.

His study already has generated a wave of media coverage. Some examples below:
Time Magazine
Wired
The Wall Street Journal
KPBS

Also, here is the abstract of the paper:
Women remain significantly underrepresented in the science, engineering, and technology workforce. Some have argued that spatial ability differences, which represent the most persistent gender differences in the cognitive literature, are partly responsible for this gap. The underlying forces at work shaping the observed spatial ability differences revolve naturally around the relative roles of nature and nurture. Although these forces remain among the most hotly debated in all of the sciences, the evidence for nurture is tenuous, because it is difficult to compare gender differences among biologically similar groups with distinct nurture. In this study, we use a large-scale incentivized experiment with nearly 1,300 participants to show that the gender gap in spatial abilities, measured by time to solve a puzzle, disappears when we move from a patrilineal society to an adjoining matrilineal society. We also show that about one-third of the effect can be explained by differences in education. Given that none of our participants have experience with puzzle solving and that villagers from both societies have the same means of subsistence and shared genetic background, we argue that these results show the role of nurture in the gender gap in cognitive abilities.

Here is the full text of the paper. 

Make sure to stop by and listen in!