Cesar Chavez High School joined 24 other high schools across California in a scholarship competition for $2,000 — funds were from the De La Rosa & Company’s fourth annual Fabric of Society essay competition.
By Mayra Barrios
Stockton, CA – Local growers and farmworkers participated in the “Spray Safe” program to prevent pesticide exposure incidents on February 8, 2012, at the Robert J. Cabral Ag Center.
Border Angels started its VII Migrant March in San Diego, along US-Mexico Border, stopping at The Council for the Spanish Speaking of the Stockton Dioscese (El Concilio) in Stockton on February 8th on their way to Sacramento to advocate for migrants rights.
The St. Joseph’s Mobile Mammography Unit visited Stockton on Friday, January 3rd, as part of a program to provide digital screening mammography services to women living in San Joaquin County.
Kaiser Permanente employees and union leaders circled outside the Kaiser facilities in Stockton on Tuesday, January 31st as part as a one-day strike throughout Northern California, battling over contract negotiations with Kaiser.
SACRAMENTO, CA — January 24, 2012 marked the last US naturalization ceremony held as a group, with nearly 1,717 who came to swear their oath to the United States of America.
Lincoln Latin Leadership (LLL), a parent/district-run organization at Lincoln High School, received the 2011 Golden Bell Award.
United States Capitol Washington, D.C. 9:10 P.M. ET
MERCED, Calif. — A team of researchers at the University of California, Merced, have redesigned luminescent solar concentrators to be more efficient at sending sunlight to solar cells.
The advancement could be an important breakthrough for solar energy harvesting, said UC Merced physics Professor Sayantani Ghosh, who led the project.
“We tweaked the traditional flat design for luminescent solar concentrators and made them into cylinders,” Ghosh said. “The results of this architectural redesign surprised us, as it significantly improves their efficiency.”
The main problem preventing luminescent concentrators from being used commercially is that they have high rates of self-absorption, Ghosh said, meaning they absorb a significant amount of the light they produce instead of transporting it to the solar cells.
The research team showed the problem can be addressed by changing the shape of the concentrator. They discovered a hollow cylindrical solar concentrator is a better design compared with a flat concentrator or a solid cylinder concentrator. The hollow cylinders absorb more sunlight while having lower self-absorption losses.
Luminiscent solar concentrators are designed to absorb solar radiation over a broad range of colors and re-emit it over a narrower range (for example, only red), a process known as down-converting. This light is transported to solar cells for photocurrent generation. The quantum dots embedded in the concentrator are the materials that carry out this color conversion.
The biggest advantage they offer over traditional solar cells is that they can work even in diffuse sunlight, like on cloudy days. And because of this, they do not need to directly face the sun at all times, eliminating the need for tracking mechanisms.
Ghosh said the discovery could make commercially viable luminescent solar concentrators a reality, especially because the design enhances performance while using the same number of quantum dots, therefore without being more costly.
This saves on infrastructure costs and also opens up the possibility that the collectors can be integrated onto vertical surfaces like walls and windows. The next step is to develop a large array of hollow cylindrical luminescent solar concentrators and track the efficiency of the panel.
Richard Inman, Georgiy Shcherbatyuk, Dmitri Medvedko and Ajay Gopinathan are the other members of the team that conducted this research.
Inman served as the lead researcher while he was an undergraduate at UC Merced, an example of the hands-on learning opportunities available to students. He’s now a graduate student at UC San Diego. Medvedko is an undergraduate student, and Shcherbatyuk is a graduate student. Gopinathan is a physics professor.
The team published a paper on the work, “Cylindrical luminescent solar concentrators with near-infrared quantum dots,” in the journal Optics Express last fall.
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Information provided by UC Merced
SACRAMENTO CA —As of the 1st of January, hundreds of new laws were enacted. Among the new laws are some that directly affect the daily lives of immigrant workers. Some of the laws favor those persons who are not here legally. “We are human being[s] and most of us believe in God; He gave us a common dignity as He did not provide political or borders laws,” noted Dean McFalls, Saint Mary’s Church Priest, as he believes the updates to the California Law are needed.
SAN JOAQUIN COUNTY, CA- A group of students at Weston Ranch High School driven by the “Christmas spirit” decided to extend their holiday enthusiasm and bring joy to families in need—only a few days away from their final exams.
STOCKTON, CA — On Friday, January 6, 2012, the Stockton Port received a special package whose delivery not only benefitted Stockton, but turned into a life saving story for Russia.
SACRAMENTO, CA – On January 5, 2011, University of the Pacific Provost Maria Pallavicini announced that Francis “Jay” Mootz has been appointed the next dean of the Pacific McGeorge School of Law in Sacramento. Mootz is currently the William S. Boyd Professor of Law and associate dean for academic affairs and faculty development at the William S. Boyd School of Law at the University of Nevada, Las Vegas. He will assume his new duties July 1.
As we begin 2012, Bilingual Weekly’s newsroom extracted the top 10 most read stories during the last 352 days. Please note that the top 10 stories were not selected by the Bilingual Weekly’s staff, our team ran the www.bilingualweekly.com English website’s analytics’ report which evaluates the hits received daily and it ranked each story from the highest number of hits to the lowest ranking in local news coverage. The following stories are briefs of the top 10 stories you, our readers clicked on.
www.bilingualweekly.com| Mayra Barrios
(bw) CALIFORNIA – The new 13th State Assembly District offers the Latino community a possibility of having a Latina as the Member representing San Joaquin County — two Latinas are vying for the District.
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