Thursday 31 October 2013

Obama gets more tech help to fix healthcare site


SAN FRANCISCO (AP) — The Obama administration has recruited engineers from several prominent technology companies to help fix the problems preventing people from signing up for government-mandated health insurance.

Oracle and Red Hat are pitching in as well as Michael Dickerson, an engineer on leave from Google, according to a blog post Thursday by Julie Bataille, a spokeswoman for the Centers for Medicare & Medicaid Services.

Oracle Corp. CEO Larry Ellison told shareholders at the software maker's annual meeting Thursday that the Redwood Shores, Calif., company is trying to make the Healthcare.gov website more reliable and secure.

"Most of us want to see our government operating efficiently and effectively and it is incumbent upon us to help them do that," Ellison said.

Red Hat Inc. and Google Inc. declined to comment.

Dickerson is a site-reliability engineer at Google. He is now working directly with QSSI, the general contractor hired to upgrade Healthcare.gov, Bataille said.

Exasperation with the website's buggy technology has been compounded by concerns that the service lacks the security measures needed to protect the sensitive information of people looking for insurance.

Besides Dickerson, the government also identified entrepreneur Greg Gershman as one of its new troubleshooters. Gershman currently is director of innovation at mobile app developer Mobomo, according to his profile on professional networking site LinkedIn.

Gershman's resume says he received a Presidential Innovation Fellowship last year to work with the White House on a project seeking "to re-imagine the relationship between citizens and government around the citizen's needs."

The Obama administration has pledged Healthcare.gov will be running smoothly by Nov. 30.

___

Online:

Centers for Medicare & Medicaid Services blog post:

http://www.hhs.gov/digitalstrategy/blog/2013/10/more-on-the-tech-surge.html

Source: http://news.yahoo.com/obama-gets-more-tech-help-fix-healthcare-225235960--finance.html
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Butterflies show origin of species as an evolutionary process, not a single event

Butterflies show origin of species as an evolutionary process, not a single event


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31-Oct-2013



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Contact: Mary Beth O'Leary
moleary@cell.com
617-397-2802
Cell Press






The evolution of new species might not be as hard as it seems, even when diverging populations remain in contact and continue to produce offspring. That's the conclusion of studies, reported in the Cell Press journal Cell Reports on October 31st, that examine the full genome sequences of 32 Heliconius butterflies from the Central American rain forest, representing five different species.


"The butterflies have performed a beautiful natural experiment for us that lets us address important questions about evolution," said Marcus Kronforst of the University of Chicago. "Even as biologists, we often think of the origin of new species as a moment in time when a new species splits from an old one, and this type of thinking is reflected in the evolutionary 'trees,' or phylogenies, that we draw. In reality, evolution is a long-term process that plays out in stages, and speciation is no different."



Kronforst and his colleagues found that the initial divergence between butterfly populations is restricted to a small fraction of the genome. In the case of the butterflies, the key genes are those involved in wing patterning. The butterfly species under study all have very different wing patterns, which are important in the butterflies' mating behavior and predator avoidance.


Comparison of those closely related, interbreeding species to a slightly more distant third species showed that hundreds of genomic changes had arisen rather quickly in evolutionary time sometime after those early differences took hold.


"We find that only a small fraction of the genome is markedly different between closely related species, but then much more of the genomemore than you'd expectshows similar differences between more distantly related species," Kronforst explained. "That indicates that the genetic changes that are important for causing speciation are tightly clustered early in speciation, but not so later on in the process; the overall pattern of genome divergence starts slow and then skyrockets."



The researchers view the process as a kind of tug-of-war between natural selection and gene flow. The result in the case of the butterflies has been a rapid divergence of species, driven by a combination of new mutations and borrowed genes. The butterfly genomes also show that the same spots in the genome have been important in multiple speciation events.


"Beyond butterflies, it is possible that this type of speciation, in which natural selection for ecology causes the origin of new species, has been important in the evolution of other organisms," Kronforst said.


###


Cell Reports, Kronforst et al.: "Hybridization reveals the evolving genomic architecture of speciation."




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Butterflies show origin of species as an evolutionary process, not a single event


[ Back to EurekAlert! ]

PUBLIC RELEASE DATE:

31-Oct-2013



[


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]


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Contact: Mary Beth O'Leary
moleary@cell.com
617-397-2802
Cell Press






The evolution of new species might not be as hard as it seems, even when diverging populations remain in contact and continue to produce offspring. That's the conclusion of studies, reported in the Cell Press journal Cell Reports on October 31st, that examine the full genome sequences of 32 Heliconius butterflies from the Central American rain forest, representing five different species.


"The butterflies have performed a beautiful natural experiment for us that lets us address important questions about evolution," said Marcus Kronforst of the University of Chicago. "Even as biologists, we often think of the origin of new species as a moment in time when a new species splits from an old one, and this type of thinking is reflected in the evolutionary 'trees,' or phylogenies, that we draw. In reality, evolution is a long-term process that plays out in stages, and speciation is no different."



Kronforst and his colleagues found that the initial divergence between butterfly populations is restricted to a small fraction of the genome. In the case of the butterflies, the key genes are those involved in wing patterning. The butterfly species under study all have very different wing patterns, which are important in the butterflies' mating behavior and predator avoidance.


Comparison of those closely related, interbreeding species to a slightly more distant third species showed that hundreds of genomic changes had arisen rather quickly in evolutionary time sometime after those early differences took hold.


"We find that only a small fraction of the genome is markedly different between closely related species, but then much more of the genomemore than you'd expectshows similar differences between more distantly related species," Kronforst explained. "That indicates that the genetic changes that are important for causing speciation are tightly clustered early in speciation, but not so later on in the process; the overall pattern of genome divergence starts slow and then skyrockets."



The researchers view the process as a kind of tug-of-war between natural selection and gene flow. The result in the case of the butterflies has been a rapid divergence of species, driven by a combination of new mutations and borrowed genes. The butterfly genomes also show that the same spots in the genome have been important in multiple speciation events.


"Beyond butterflies, it is possible that this type of speciation, in which natural selection for ecology causes the origin of new species, has been important in the evolution of other organisms," Kronforst said.


###


Cell Reports, Kronforst et al.: "Hybridization reveals the evolving genomic architecture of speciation."




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Source: http://www.eurekalert.org/pub_releases/2013-10/cp-bso102413.php
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Google: Samsung Galaxy Nexus won't get updated to Android 4.4 KitKat

From the horse's mouth, we're hearing some unfortunate news: Google has taken to its Spanish support pages to announce that the Samsung Galaxy Nexus is not on the list of devices to receive Android 4.4 KitKat. This seems a bit odd, given the new update's focus on "the next billion" and offering ...


Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/AaAkHPQacR4/
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Android 4.4 KitKat is official, launching on the Nexus 5

KitKat

Streamlined performance, new smarter phone app, pedometer support, new "immersive mode" in new version of Android

Along with the LG Nexus 5, Android 4.4 KitKat is finally official — and there's a whole bunch of new features to get to grips with, besides the obvious UI changes we've seen in all the renders. For starters, among the many changes to the stock launcher, it's now possible to say "OK Google" from the home screen to start a voice search or use other voice-activated features.

More after the break.

read more


    






Source: http://feedproxy.google.com/~r/androidcentral/~3/MQBZOqgfiaE/story01.htm
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Hollywood Reporter's Film Critics Pick the 20 Scariest Movies of All Time



Source: http://feedproxy.google.com/~r/thr/news/~3/lSLlh08gQt0/halloween-scariest-movies-all-time-651631
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Want to get your hands on the Nexus 5 ASAP?

Want to get your hands on the Nexus 5 ASAP? Sprint will have it for $150 starting November 8th, while T-Mobile only has an email update you can sign up for at the moment. [Sprint, T-Mobile]

Read more...


    






Source: http://feeds.gawker.com/~r/gizmodo/full/~3/E7bTAmcaYT4/want-to-get-your-hands-on-the-nexus-5-asap-sprint-will-1456278370
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Make Your Pictures Pop: Use Your Camera’s Aperture-Priority Mode Instead of Auto

Make Your Pictures Pop: Use Your Camera’s Aperture-Priority Mode Instead of Auto
Not all cameras have an aperture-priority mode. If yours has one, you should use it. All the time. It'll give you more control over the look of your photos without having to dive into the complexities of full-manual exposure controls. ...


Source: http://feedproxy.google.com/~r/GearFactor/~3/oLSR_3xi280/
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Study: Staggering turbines improves performance 33 percent

Study: Staggering turbines improves performance 33 percent


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PUBLIC RELEASE DATE:

30-Oct-2013



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Contact: Andrea Boyle Tippett
aboyle@udel.edu
302-831-1421
University of Delaware







Research into the best ways to arrange wind turbines has produced staggering results quite literally.


The University of Delaware's Cristina Archer and her Atmosphere and Energy Research Group found that staggering and spacing out turbines in an offshore wind farm can improve performance by as much as 33 percent.


"Staggering every other row was amazingly efficient," said Archer, associate professor of physical ocean science and engineering and geography in UD's College of Earth, Ocean, and Environment.


The findings, which appeared last month in Geophysical Research Letters, could help engineers plan improved offshore wind farms.


The researchers used an existing offshore wind farm near Sweden as the basis for their study, comparing the existing tightly packed, grid-like layout to six alternative configurations. In some, they kept the turbines in neat rows but spaced them farther apart. In others, they shifted the alignment of every other row, similar to how rows of theatre seats are staggered to improve the views of people further back.


In computer-intensive simulations that each took weeks to run, the team took into account the eddies, or swirls of choppy air, that wind turbines create downwind as their blades spin and how that air movement would impact surrounding turbines.


They found that the most efficient arrangement was a combination of two approaches. By both spacing the turbines farther apart and staggering the rows, the improved layout would decrease losses caused by eddies and improve overall performance by a third.


The optimal configuration had the rows oriented to face the prevailing wind direction, for example from the southwest in the summer along the U.S. East Coast. Most locations, however, have more than one dominant direction from where wind blows throughout the year. The optimal configuration for a season may not be optimal in another season, when the prevailing wind changes direction and intensity.


Considering these various factors could better inform where and how to configure future offshore wind farms, Archer explained.


"We want to explore all these trade-offs systematically, one by one," she said.


The study is part of Archer's overall research focus on wind and applications for renewable energy production. Trained in both meteorology and engineering, she uses weather data and complex calculations to estimate the potential for wind as a power source.


Last year, Archer and colleague Mark Jacobson of Stanford University found that wind turbines could power half the world's future energy demands with minimal environmental impact.


In a follow-up to that study, Archer and Jacobson examined how worldwide wind energy potential varies seasonally. They found that in most regions where wind farms could feasibly be built on land and offshore, capacity is greatest from December to February.


However, even factoring in seasonal variability, the researchers found there is enough wind to cover regional electricity demand.


Those results were recently published in Applied Geography and share detailed maps and tables that summarize the distribution of wind throughout the world by season.


"I'm hoping these will be tools for giving a general overview of wind at the global scale," Archer said.


###

About UD's College of Earth, Ocean, and Environment


UD's College of Earth, Ocean, and Environment (CEOE) strives to reach a deeper understanding of the planet and improve stewardship of environmental resources. CEOE faculty and students examine complex information from multiple disciplines with the knowledge that science and society are firmly linked and solutions to environmental challenges can be synonymous with positive economic impact.


The college brings the latest advances in technology to bear on both teaching and conducting ocean, earth and atmospheric research. Current focus areas are ecosystem health and society, environmental observing and forecasting, and marine renewable energy and sustainability.


CEOE is the administrative base of the Delaware Geological Survey, the Delaware Geographic Alliance and the Delaware Sea Grant College Program and is home to the secretariat of the Scientific Committee on Oceanic Research.




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Study: Staggering turbines improves performance 33 percent


[ Back to EurekAlert! ]

PUBLIC RELEASE DATE:

30-Oct-2013



[


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]


Share Share

Contact: Andrea Boyle Tippett
aboyle@udel.edu
302-831-1421
University of Delaware







Research into the best ways to arrange wind turbines has produced staggering results quite literally.


The University of Delaware's Cristina Archer and her Atmosphere and Energy Research Group found that staggering and spacing out turbines in an offshore wind farm can improve performance by as much as 33 percent.


"Staggering every other row was amazingly efficient," said Archer, associate professor of physical ocean science and engineering and geography in UD's College of Earth, Ocean, and Environment.


The findings, which appeared last month in Geophysical Research Letters, could help engineers plan improved offshore wind farms.


The researchers used an existing offshore wind farm near Sweden as the basis for their study, comparing the existing tightly packed, grid-like layout to six alternative configurations. In some, they kept the turbines in neat rows but spaced them farther apart. In others, they shifted the alignment of every other row, similar to how rows of theatre seats are staggered to improve the views of people further back.


In computer-intensive simulations that each took weeks to run, the team took into account the eddies, or swirls of choppy air, that wind turbines create downwind as their blades spin and how that air movement would impact surrounding turbines.


They found that the most efficient arrangement was a combination of two approaches. By both spacing the turbines farther apart and staggering the rows, the improved layout would decrease losses caused by eddies and improve overall performance by a third.


The optimal configuration had the rows oriented to face the prevailing wind direction, for example from the southwest in the summer along the U.S. East Coast. Most locations, however, have more than one dominant direction from where wind blows throughout the year. The optimal configuration for a season may not be optimal in another season, when the prevailing wind changes direction and intensity.


Considering these various factors could better inform where and how to configure future offshore wind farms, Archer explained.


"We want to explore all these trade-offs systematically, one by one," she said.


The study is part of Archer's overall research focus on wind and applications for renewable energy production. Trained in both meteorology and engineering, she uses weather data and complex calculations to estimate the potential for wind as a power source.


Last year, Archer and colleague Mark Jacobson of Stanford University found that wind turbines could power half the world's future energy demands with minimal environmental impact.


In a follow-up to that study, Archer and Jacobson examined how worldwide wind energy potential varies seasonally. They found that in most regions where wind farms could feasibly be built on land and offshore, capacity is greatest from December to February.


However, even factoring in seasonal variability, the researchers found there is enough wind to cover regional electricity demand.


Those results were recently published in Applied Geography and share detailed maps and tables that summarize the distribution of wind throughout the world by season.


"I'm hoping these will be tools for giving a general overview of wind at the global scale," Archer said.


###

About UD's College of Earth, Ocean, and Environment


UD's College of Earth, Ocean, and Environment (CEOE) strives to reach a deeper understanding of the planet and improve stewardship of environmental resources. CEOE faculty and students examine complex information from multiple disciplines with the knowledge that science and society are firmly linked and solutions to environmental challenges can be synonymous with positive economic impact.


The college brings the latest advances in technology to bear on both teaching and conducting ocean, earth and atmospheric research. Current focus areas are ecosystem health and society, environmental observing and forecasting, and marine renewable energy and sustainability.


CEOE is the administrative base of the Delaware Geological Survey, the Delaware Geographic Alliance and the Delaware Sea Grant College Program and is home to the secretariat of the Scientific Committee on Oceanic Research.




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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.




Source: http://www.eurekalert.org/pub_releases/2013-10/uod-sst103013.php
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