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Thursday, March 28, 2013

Prekindergarten program boosts children's skills

Mar. 28, 2013 ? Boston Public Schools' prekindergarten program is substantially improving children's readiness to start kindergarten, according to a new study of more than 2,000 children enrolled there. The program uses research-based curricula and coaching of teachers, is taught primarily by masters-level teachers, and is open to any child regardless of family income.

The study, out of Harvard University, appears in the journal Child Development. Some of the study's findings on the effects of the program are the largest found to date in evaluations of large-scale public prekindergarten programs.

Researchers found that the program substantially improved children's language, literacy, math, executive function (the ability to regulate, control, and manage one's thinking and actions), and emotional development skills citywide. Children in the program were 4 and 5 years old and from racially, linguistically, and socioeconomically diverse backgrounds. While all students who participated benefited, the improvements were especially strong for Latino children.

Preschool has been shown to help prepare children for kindergarten and is an increasing priority among federal, state, and local policymakers. But many preschool programs struggle to attain good instructional quality.

"We can draw several important lessons from our findings about factors that support quality in prekindergarten," notes Christina Weiland, incoming assistant professor at the University of Michigan's School of Education, who was at Harvard when she led the study.

First, the combination of explicit, evidence-based curricula (in language/literacy and math) and in-classroom coaching of teachers as part of professional development likely played a major role in improving student outcomes. Investing in such quality supports for prekindergarten teachers may lead to gains in students' school readiness, the study found.

Second, implementing consistent math, language, and literacy curricula might build children's executive function skills. "Our results suggest that curricula in these areas may also improve such domains as executive functioning, even without directly targeting them," according to Weiland. "Interestingly, research shows that these kinds of skills -- which reflect early brain development, the ability to focus, and behavior -- are critical to children's success down the road."

Third, students in the program also may have benefited from having more mixed-income peers than is typical in most public prekindergarten programs, which are means tested and therefore tend to include mostly low-income students.

"Given the particularly large impacts for Latinos, a group that tends to be underenrolled in preschool programs, efforts to increase the enrollment of Latino children in high-quality prekindergarten programs such as the one studied here may be beneficial," Weiland adds.

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The above story is reprinted from materials provided by Society for Research in Child Development, via EurekAlert!, a service of AAAS.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.

Journal Reference:

Christina Weiland, Hirokazu Yoshikawa. Impacts of a Prekindergarten Program on Children's Mathematics, Language, Literacy, Executive Function, and Emotional Skills. Child Development, 2013; DOI: 10.1111/cdev.12099

Note: If no author is given, the source is cited instead.

Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/living_well/~3/Dg2wGEGWtJQ/130328080227.htm

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Google posts Android 4.2.x factory images for Sprint and Verizon Galaxy Nexus models

Many would call the HSPA+ Galaxy Nexus the only true Nexus of its era. Still, Google is willing to treat the CDMA versions as equals, and it just posted factory images with the latest available Jelly Bean builds for those devices. Anyone with a Verizon model can now flash with Android 4.2.2 if their existing OS install ever goes awry; Sprint users aren't quite on an equal plane, but do get a 4.2.1 image to work from. Relevant driver binaries are also available. Whether you're a custom ROM creator looking for a starting point or just want a fallback for any risky experiments, the relevant source links should have what you need.

Filed under: Cellphones, Mobile, Samsung, Google, Verizon, Sprint

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Via: Droid-Life

Source: Google Developers (1), (2)

Source: http://www.engadget.com/2013/03/28/google-posts-android-4-2-x-images-for-sprint-and-verizon-gnex/

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New fossil species from a fish-eat-fish world when limbed animals evolved

Mar. 27, 2013 ? Scientists who famously discovered the lobe-finned fish fossil Tiktaalik roseae, a species with some of the clearest evidence of the evolutionary transition from fish to limbed animals, have described another new species of predatory fossil lobe-finned fish fish from the same time and place. By describing more Devonian species, they're gaining a greater understanding of the "fish-eat-fish world" that drove the evolution of limbed vertebrates.

"We call it a 'fish-eat-fish world,' an ecosystem where you really needed to escape predation," said Dr. Ted Daeschler, describing life in the Devonian period in what is now far-northern Canada.

This was the environment where the famous fossil fish species Tiktaalik roseaelived 375 million years ago. This lobe-finned fish, co-discovered by Daeschler, an associate professor at Drexel University in the Department of Biodiversity, Earth and Environmental Science, and associate curator and vice president of the Academy of Natural Sciences of Drexel University, and his colleagues Dr. Neil Shubin and Dr. Farish A. Jenkins, Jr., was first described in Nature in 2006.This species received scientific and popular acclaim for providing some of the clearest evidence of the evolutionary transition from lobe-finned fish to limbed animals, or tetrapods.

Daeschler and his colleagues from the Tiktaalik research, including Academy research associate Dr. Jason Downs, have now described another new lobe-finned fish species from the same time and place in the Canadian Arctic. They describe the new species, Holoptychius bergmanni, in the latest issue of the Proceedings of the Academy of Natural Sciences of Philadelphia.

"We're fleshing out our knowledge of the community of vertebrates that lived at this important location," said Downs, who was lead author of the paper. He said describing species from this important time and place will help the scientific community understand the transition from finned vertebrates to limbed vertebrates that occurred in this ecosystem.

"It was a tough world back there in the Devonian. There were a lot of big predatory fish with big teeth and heavy armor of interlocking scales on their bodies," said Daeschler.

Daeschler said Holoptychius and Tiktaalik were both large predatory fishes adapted to life in stream environments. The two species may have competed with one another for similar prey, although it is possible they specialized in slightly different niches; Tiktaalik's tetrapod-like skeletal features made it especially well suited to living in the shallowest waters.

The fossil specimens of Holoptychis bergmanni that researchers used to characterize this new species come from multiple individuals and include lower jaws with teeth, skull pieces including the skull roof and braincase, and parts of the shoulder girdles. The complete fish would have been 2 to 3 feet long when it was alive.

"The three-dimensional preservation of this material is spectacular," Daeschler said. "For something as old as this, we'll really be able to collect some good information about the anatomy of these animals."

The research on Holoptychius bergmanni was led by Downs, a former post-doctoral fellow working with Daeschler who also teaches at Swarthmore College. Other co-authors of the paper with Downs and Daeschler are Dr. Neil Shubin of the University of Chicago, and the late Dr. Farish Jenkins, Jr. of Harvard University, who passed away in 2012.

Honoring a Modern Arctic Explorer and Supporter of Science

The researchers named the new fossil fish species Holoptychius bergmanni in honor of the late Martin Bergmann, former director of the Polar Continental Shelf Program (PCSP), Natural Resources Canada, the organization that provided logistical support during the team's Arctic research expeditions spanning more than a decade. Bergmann was killed in a plane crash in 2011 shortly after the team's most recent field season in Nunavut.

"We decided to choose Martin Bergmann to honor him, not ever having met him, but with the understanding that his work with PCSP made great strides in opening the Arctic to researchers," said Downs. "It's an invaluable project happening in the Canadian Arctic that's enabling this type of work to happen."

Bergmann's organization assisted the research team with many aspects of expedition logistics including difficult flight operations to carry supplies and research personnel to remote research sites on Ellesemere Island. Daeschler described the pilots as capable of landing a Twin Otter aircraft almost anywhere, as long as the ground was solid -- a condition they tested by briefly touching down the airplane and circling back to see if the tires left a deep mark in the mud.

Daeschler and colleagues intend to return to Ellesemere Island for another field expedition in the summer of 2013 to search for fossils in older rocks at a more northerly field site than the one where they discovered T. roseae and H. bergmanni.

A Deeper Look at the Devonian

Daeschler and a different co-author described another new species of Devonian fish in addition to H. bergmanni, in the same issue of the Proceedings of the Academy of Natural Sciences. More information about this new placoderm from Pennsylvania is available at the Drexel News Blog.

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The above story is reprinted from materials provided by Drexel University.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_environment/~3/gF0xKYgCwQE/130327133514.htm

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Wednesday, March 27, 2013

Havok introduces free 3D game development engine

ProjectAnarchy

Havok has announced that their 3D gaming Vision engine, Physics and Animation suites, and their award winning AI tools will now be free for "leading" mobile platforms under their new Project Anarchy initiative. If you play games, you already know about Havok. They're the folks who make the tools behind games like the Assassin's Creed, Halo, and Skyrim franchises, and are used by some of the biggest names in gaming, like EA, Bethesda, and Bungie.

The download also includes game samples and tutorials for mobile developers, and there will be a complete online community to "encourage free sharing and collaborative development of extensions and customizations by the community." Ross O’Dwyer, head of developer relations at Havok, says:

We’re really delighted to be able to offer these professional grade tools to mobile developers for free and we look forward to supporting the mobile game development community to make some stunning games with the technology over the next few years.

Project Anarchy will launch this spring. To keep up with things and sign-up for more information, follow the link below. The full press release is after the break.

More: Project Anarchy

Source: http://feedproxy.google.com/~r/androidcentral/~3/89P2IDbfdA4/story01.htm

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Wells Fargo bank site attack disrupts service

Suzanne Choney , NBC News ? ? ? 18 hrs.

Wells Fargo's online banking site was experiencing problems Tuesday, with a denial-of-service attack likely the reason behind the slowdowns for some customers trying to access the site.

"Today we?ve seen an unusually high volume of website traffic which we believe is a denial of service attack," a bank spokesperson told NBC News. "The vast majority of customers are not impacted and customer information is safe."

Customers who are having problems logging on are encouraged to do keep trying, "as the disruption is usually intermittent," the spokesperson said. "We apologize to our customers for any inconvenience."

This isn't the first time the bank site has been under a denial-of-service attack, where hackers inundate a website with traffic to delay or disrupt it.

Bank of America, JPMorgan Chase, Ally Financial, and regional bank BB&T have also been hit with attacks in the past year. Sources have previously told NBC News and Reuters that the attacks may be part of an effort by Iranian hackers against major U.S. financial institutions and other corporate entities.

Last fall, a financial services industry group, the Financial Services Information Sharing and Analysis Center, issued an alert about the attacks to members, raising the threat level from "elevated" to high," because of "credible intelligence" about the potential for such attacks.

Source: http://feeds.nbcnews.com/c/35002/f/653351/s/2a059650/l/0L0Snbcnews0N0Ctechnology0Ctechnolog0Cwells0Efargo0Ebank0Esite0Eattack0Edisrupts0Eservice0E1C90A87970A/story01.htm

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Endangered tigers find refuge in massive new Indian park

The newly protected area ? the size of New York City ? connects several adjacent parks, making it one of the largest contiguous tiger habitats in the world.

By Douglas Main,?Our Amazing Planet / March 26, 2013

A tigress and her cub rest in India's Sathyamangalam Wildlife Sanctuary.

Vijay Kumar / WWF-India / LiveScience.com

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India has created a new protected area for tigers within a wildlife reserve in the south of the country.

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The area, part of the Sathyamangalam Wildlife Sanctuary, is home to about 25 tigers, according to a release from the World Wildlife Fund (WWF), a conservation group. This population of tigers rivals the size of some of India's better-known reserves, the statement said.

This will be the 42nd tiger reserve in the country, which is home to the largest population of tigers in the world. The 272-square-mile (705 square kilometers) protected area will help connect several adjacent parks, making it one of the largest continuous tiger habitats in the world, according to the WWF. The area is also home to elephants, leopards, hyenas and vultures.

For more than a decade, WWF-India has worked with local authorities in the state of Tamil Nadu (where the reserve is found) to support projects to counter poaching, improve communications via cellular phones and wireless networks, train forest rangers and monitor tigers, the statement said.

"The tiger is the national animal of India, and WWF congratulates the government for yet another important milestone in its conservation efforts that will make a tremendous contribution to the goal of conserving wild tigers and their natural habitats in the country," said Dipankar Ghose, of WWF-India, in the statement.

Tiger numbers have declined by about 95 percent in the last century across their entire historic range, and experts think there are only about 3,000 left in the wild, according to the International Union for Conservation of Nature.

Email Douglas Main?or follow him @Douglas_Main. Follow us?@OAPlanet, Facebook?or? Google+. Original article on LiveScience's OurAmazingPlanet.

Source: http://rss.csmonitor.com/~r/feeds/science/~3/bhyyyuh7hgE/Endangered-tigers-find-refuge-in-massive-new-Indian-park

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US Labor Department announces new online resources to help ...

WASHINGTON?- The U.S. Department of Labor today announced the launch of the Business Center, a suite of online resources for employers looking to recruit, train and retain a skilled work force through the department?s CareerOneStop Web site.

The site includes tips about how to recruit qualified candidates through local American Job Centers and provides employment projections. Additionally, the site offers access to local training and educational institutions, a catalog of occupational certifications and a tool to help employers translate the military training and skills of returning service members into specific civilian occupations. The CareerOneStop Business Center is available online at?http://www.careeronestop.org/business.

?These resources will help educate employers about our nation?s work force development system and put the resources they need to find and hire qualified workers right at their fingertips,? said Jane Oates, assistant secretary of labor for employment and training.

The new Business Center page builds on existing resources available through CareerOneStop, which also has information to help job seekers find education and training providers, conduct a job search and access local labor market information.

Employment and Training Administration staff will have a webinar on March 27 at 2 p.m. EDT to highlight the Business Center?s tools. A webinar is a seminar conducted over the Internet. For more information and to participate in the webinar, visit?https://www.workforce3one.org/view/5001307743087754858/info.

Short URL: http://www.hawaiireporter.com/?p=312837