Saturday, June 30, 2012

Jun 30, The NBA Draft 2012: Most Intriguing Players to Watch

The NBA Draft 2012: Most Intriguing Players to Watch

There's a lot of great players at the top of the NBA Draft (Anthony Davis, Bradley Beal, Michael Kidd-Gilchrist to name a few) but with the Bulls holding the 29th pick, I wanted discuss a few "under the radar" players that I feel would provide the Bulls a great amount of depth to their roster.

Royce White: White (6'8" 270 lbs.) is a Power Forward who is an undersized player for the position but still can make a great impact off the Bulls bench. One of the best parts about Royce White's game is that for his size he's a great ball handler, in fact he brought the ball up for Iowa State last year. He might not have a definite position on the court, but he will for sure have an impact on the game and give a team even more ball-handlers on the court at all times.

Jeremy Lamb: The Bulls have been looking for an impact 2-guard for the past few years and as a Freshman Lamb helped UConn win a National Championship. During his second season at Connecticut (and Kemba Walker now in the NBA), Lamb became a much better scorer (went from averaging 11.1 points as a freshman to 17.7 points per game as a Sophomore) while still averaging over 4 rebounds per game. If the Bulls decide to draft Jeremy Lamb, I feel he would be a great starting 2-Guard, and would make a solid backcourt player with Derrick Rose for a number of years.

Will Barton: Another 2-Guard for the Bulls to consider; Will Barton struggled during his first season at Memphis (12.3, 4.9 rebounds, and while only shooting 42.8% from the field. However, as a Sophomore Barton had a significant impact on the Tigers roster as he averaged 18 points, 8 rebounds, and 3 Assists while shooting 50.9% from the field. Barton has the potential of being a great 2-Guard in this league and great size at 6'6".

Tyshawn Taylor: During his first four years at Kansas, Tyshawn Taylor wasn't seen as much of a "score" and was more of a facilitating guard his first three years in college. During his senior year, Taylor had a much bigger role in their offense as he averaged 16.6 points to go along with 4.8 Assists on the season. Taylor was a four-year player at Kansas and would be a great backup to Derrick Rose in the future.

John Jenkins: You can never have enough scorers on your team and with Jenkins he would provide the Bulls with another great scorer off the bench. Jenkins (6'4 and 215 lbs.) has one of the best jump-shots in this draft and would be able to help Derrick Rose spread the floor even more in the future.




What do you think?

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Source: http://www.thebestsportsblog.com/the-nba-draft-2012-most-intriguing-players-to-watch.html

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healthdotmil: In The News: #Military Leaders Focus On Efforts To Reduce #PTSD Stigma http://t.co/qOR8qIMf #milhealth http://t.co/vXJk1mRQ

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Source: http://twitter.com/healthdotmil/statuses/218758814726500352

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Friday, June 29, 2012

Washington Redskins RB Roy Helu Jr tweeted Thursday Im claiming residancy in another country next year obamacare...

SbB LIVE FROM LA (Jun 28, 2012 @ 5:18pm ET)

5:15 PM: Rafael Nadal was knocked out of the second round of Wimbledon Thursday, losing to Lukas Rosol 6-7 (9-11), 6-4, 6-4. 2-6, 6-4.

5:00 PM: A judo coach in Amritsar, India has been arrested on charges of raping a female student at camp and forcibly keeping her with him for three days.

4:45 PM: Italy defeated Germany 2-1 to advance to the Euro 2012 final, where they will meet Spain.

4:30 PM: The AP's Tim Reynolds reports Dwyane Wade will not play for the U.S. Olympic team this summer in London, saying he needs to undergo off-season knee surgery.

4:15 PM: The Los Angeles Kings have agreed to terms with goalie & Stanley Cup Playoffs MVP Jonathan Quick on a 10-year contract extension, but the deal cannot be signed until July 1.

4:00 PM: Maria Sharapova reacts to tennis player Gilles Simon saying he's against equal prize money for men & women: "I'm sure there are a few more people that watch my matches than his."

3:45 PM: Unsigned New Orleans Saints QB Drew Brees tells Parade magazine: "It's definitely been a tough off-season for everyone but in a lot of ways adversity and these types of things bring people together."

3:30 PM: Alabama golfer Brooke Pancake has been named this year's SEC Female Athlete of the Year.

3:15 PM: Swimmer Cody Miller suffered a split in his Speedos while preparing for a 200m breaststroke race at the U.S. Olympic trials in Omaha Thursday.

3:00 PM: Deron Williams tweeted Thursday: "Just finished playing East Hampton Golf Club w/ @RealJasonKidd let the speculation begin?????"

2:45 PM: The Smoking Gun reports Golden State Warriors coach Mark Jackson was the target of an extortion plot by an ex-stripper to whom he sent naked photos of himself.

2:30 PM: After a lawsuit was filed by the conservative Goldwater Institute, a Maricopa County (AZ) Superior Court judge has upheld the Glendale City Council's approval of a new arena deal for the Phoenix Coyotes.

2:15 PM: Cleveland Cavaliers guard Anthony Parker has announced his retirement after nine years in the NBA & six years playing in Israel.

2:00 PM: Washington Redskins RB Roy Helu Jr. tweeted Thursday: "I'm claiming residancy in another country next year #obamacare"

1:45 PM: Florida State RB James Wilder, Jr. has reached a plea deal on charges of violating his probation. Wilder will finish his 11-day jail sentence on Sunday & have his probation extended until September or October.

Source: http://www.sportsbybrooks.com/sbblive?eid=39012

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Video: Countdown to Friday's Market Close

Sorry, Readability was unable to parse this page for content.

Source: http://video.msnbc.msn.com/cnbc/48019069/

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Egypt's new leader vows to free sheik jailed in US

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Source: http://news.yahoo.com/egypts-leader-vows-free-sheik-jailed-us-170213861.html

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Thursday, June 28, 2012

High court upholds Obama health law by 5-4 vote

Supporters of President Barack Obama's health care law celebrate outside the Supreme Court in Washington, Thursday, June 28, 2012, after the court's ruling. AP Photo/David Goldman)

Supporters of President Barack Obama's health care law celebrate outside the Supreme Court in Washington, Thursday, June 28, 2012, after the court's ruling. AP Photo/David Goldman)

FILE - This Oct. 8, 2010 file photo shows the justices of the U.S. Supreme Court at the Supreme Court in Washington. Seated from left are Associate Justices Clarence Thomas, and Antonin Scalia, Chief Justice John Roberts, Associate Justices Anthony M. Kennedy and Ruth Bader Ginsburg. Standing, from left are Associate Justices Sonia Sotomayor, Stephen Breyer, Samuel Alito Jr., and Elena Kagan. The Supreme Court on Thursday, June 28, 2012, upheld the individual insurance requirement at the heart of President Barack Obama's historic health care overhaul. (AP Photo/Pablo Martinez Monsivais, File)

Claire McAndrew of Washington, left, and Donny Kirsch of Washington, celebrate outside the Supreme Court in Washington, Thursday, June 28, 2012, after the courts's ruling on health care. (AP Photo/Evan Vucci)

William Temple, of Brunswick, Ga., waits outside the Supreme Court a landmark decision on health care on Thursday, June 28, 2012 in Washington. (AP Photo/Evan Vucci)

The front of the U.S. Supreme Court is seen on the eve of Thursday's expected ruling on whether or not the Affordable Care Act passes the test of constitutionality Wednesday, June 27, 2012 in Washington. (AP Photo/Alex Brandon)

(AP) ? The Supreme Court on Thursday upheld virtually all of President Barack Obama's historic health care overhaul, including the hotly debated core requirement that nearly every American have health insurance.

The 5-4 decision meant the huge overhaul, still taking effect, could proceed and pick up momentum over the next several years, affecting the way that countless Americans receive and pay for their personal medical care.

The ruling hands Obama a campaign-season victory in rejecting arguments that Congress went too far in approving the plan. However, Republicans quickly indicated they will try to use the decision to rally their supporters against what they call "Obamacare," arguing that the ruling characterized the penalty against people who refuse to get insurance as a tax.

Obama declared, "Whatever the politics, today's decision was a victory for people all over this country." GOP presidential candidate Mitt Romney renewed his criticism of the overhaul, calling it "bad law" and promising to work to repeal it if elected in November.

Breaking with the court's other conservative justices, Chief Justice John Roberts announced the judgment that allows the law to go forward with its aim of covering more than 30 million uninsured Americans. Roberts explained at length the court's view of the mandate as a valid exercise of Congress' authority to "lay and collect taxes." The administration estimates that roughly 4 million people will pay the penalty rather than buy insurance.

Even though Congress called it a penalty, not a tax, Roberts said, "The payment is collected solely by the IRS through the normal means of taxation."

Roberts also made plain the court's rejection of the administration's claim that Congress had the power under the Constitution's commerce clause to put the mandate in place. The power to regulate interstate commerce power, he said, "does not authorize the mandate. "

Stocks of hospital companies rose after the decision was announced, while shares of insurers fell sharply. Shares of drugmakers and device makers fell slightly.

The justices rejected two of the administration's three arguments in support of the insurance requirement. But the court said the mandate can be construed as a tax. "Because the Constitution permits such a tax, it is not our role to forbid it, or to pass upon its wisdom or fairness," Roberts said.

The court found problems with the law's expansion of Medicaid, but even there said the expansion could proceed as long as the federal government does not threaten to withhold states' entire Medicaid allotment if they don't take part in the law's extension.

The court's four liberal justices, Stephen Breyer, Ruth Bader Ginsburg, Elena Kagan and Sonia Sotomayor, joined Roberts in the outcome.

Justices Samuel Alito, Anthony Kennedy, Antonin Scalia and Clarence Thomas dissented.

Kennedy summarized the dissent in court. "In our view, the act before us is invalid in its entirety," he said.

The dissenters said in a joint statement that the law "exceeds federal power both in mandating the purchase of health insurance and in denying non-consenting states all Medicaid funding."

In all, the justices spelled out their views in six opinions totaling 187 pages. Roberts, Kennedy and Ginsburg spent 51 minutes summarizing their views in the packed courtroom.

The legislation passed Congress in early 2010 after a monumental struggle in which all Republicans voted against it. House Majority Leader Eric Cantor, R-Va., said Thursday the House will vote the week of July 9 on whether to repeal the law, though such efforts have virtually no chance in the Democratic-controlled Senate.

House Speaker John Boehner, R-Ohio, said the health care law makes it harder for small businesses to hire workers. "Today's ruling underscores the urgency of repealing this harmful law in its entirety," he said.

But Senate Majority Leader Harry Reid, D-Nev., heaped praise on the court's decision, and the 2010 law, in a Senate speech. "Passing the Affordable Care Act was the greatest single step in generations toward ensuring access to affordable, quality health care for every American, regardless of where they live or how much money they make," he said.

After the ruling, Republican campaign strategists said Romney will use it to continue campaigning against "Obamacare" and attacking the president's signature health care program as a tax increase.

"Obama might have his law, but the GOP has a cause," said veteran campaign adviser Terry Holt. "This promises to galvanize Republican support around a repeal of what could well be called the largest tax increase in American history."

Democrats said Romney, who backed an individual health insurance mandate when he was Massachusetts governor, will have a hard time exploiting the ruling.

"Mitt Romney is the intellectual godfather of Obamacare," said Democratic consultant Jim Manley. "The bigger issue is the rising cost of health care, and this bill is designed to deal with it."

More than eight in 10 Americans already have health insurance. But for most of the 50 million who are uninsured, the ruling offers the promise of guaranteed coverage at affordable prices. Lower-income and many middle-class families will be eligible for subsidies to help pay premiums starting in 2014.

There's also an added safety net for all Americans, insured and uninsured. Starting in 2014, insurance companies will not be able to deny coverage for medical treatment, nor can they charge more to people with health problems. Those protections, now standard in most big employer plans, will be available to all, including people who get laid off, or leave a corporate job to launch their own small business.

Seniors also benefit from the law through better Medicare coverage for those with high prescription costs, and no copayments for preventive care. But hospitals, nursing homes, and many other service providers may struggle once the Medicare cuts used to finance the law really start to bite.

Illegal immigrants are not entitled to the new insurance coverage under the law, and will remain one of the biggest groups uninsured.

Obama's law is by no means the last word on health care. Experts expect costs to keep rising, meaning that lawmakers will have to revisit the issue perhaps as early as next year, when federal budget woes will force them to confront painful options for Medicare and Medicaid, the giant federal programs that cover seniors, the disabled, and low-income people.

The health care overhaul focus will now quickly shift from Washington to state capitals. Only 14 states, plus Washington, D.C., have adopted plans to set up the new health insurance markets called for under the law. Called exchanges, the new markets are supposed to be up and running on Jan. 1, 2014. People buying coverage individually, as well as small businesses, will be able to shop for private coverage from a range of competing insurers.

Most Republican-led states, including large ones such as Texas and Florida, have been counting on the law to be overturned and have failed to do the considerable spade work needed to set up exchanges. There's a real question about whether they can meet the deadline, and if they don't, Washington will step in and run their exchanges for them.

In contrast to the states, health insurance companies, major employers, and big hospital systems are among the best prepared. Many of the changes called for in the law were already being demanded by employers trying to get better value for their private health insurance dollars.

"The main driver here is financial," said Dr. Toby Cosgrove, CEO of the Cleveland Clinic, which has pioneered some of the changes. "The factors driving health care reform are not new, and they are not going to go away."

The Medicaid expansion would cover an estimated 17 million people who earn too much to qualify for assistance but not enough to afford insurance. The federal and state governments share the cost, and Washington regularly imposes conditions on the states in exchange for money.

Roberts said Congress' ability to impose those conditions has its limits. "In this case, the financial 'inducement' Congress has chosen is much more than 'relatively mild encouragement' ? it is a gun to the head," he said.

The law says the Health and Human Services Department can withhold a state's entire Medicaid allotment if the state doesn't comply with the health care law's Medicaid provisions.

Even while ruling out that level of coercion, however, Roberts said nothing prevents the federal government from offering money to accomplish the expansion and withholding that money from states that don't meet certain conditions.

"What Congress is not free to do is to penalize states that choose not to participate in that new program by taking away their existing Medicaid funding," he said.

Ginsburg said the court should have upheld the entire law as written without forcing any changes in the Medicaid provision. She said Congress' constitutional authority to regulate interstate commerce supports the individual mandate. She warned that the legal reasoning, even though the law was upheld, could cause trouble in future cases.

"So in the end, the Affordable Health Care Act survives largely unscathed. But the court's commerce clause and spending clause jurisprudence has been set awry. My expectation is that the setbacks will be temporary blips, not permanent obstructions," Ginsburg said in a statement she, too, read from the bench.

In the courtroom Thursday were retired Justice John Paul Stevens and the wives of Roberts, Alito, Breyer, Kennedy and Thomas.

.__

Associated Press writers Ricardo Alonso-Zaldivar, Charles Babington, Jessica Gresko, Jesse J. Holland and David Espo contributed to this report.

___

Online:

http://hosted.ap.org/interactives/2012/healthcare

Visit AP's Google Plus page at 4 p.m. EDT for a Google Hangout video chat where AP reporters will be discussing the impact of today's ruling and taking your questions: ?http://apne.ws/LgPvzL

Associated Press

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Report: Insurers Lost About $2.3B on Workers' Compensation in 2011

Insurers that provide workers' compensation coverage in California lost about $2.3 billion last year, according to a report by the Workers' Compensation Insurance Rating Bureau, the Sacramento Bee's "Capitol Alert" reports.

Details of Report

The report found that insurers that provide workers' compensation coverage for most California employers collected about $10.4 billion in premiums in 2011.

However, the insurers paid out $7.7 billion for health care services and support benefits and had expenses of $5 billion last year, according to the report.

The losses on workers' compensation plans in 2011 were greater than those experienced by insurers in 2010.

The report does not include data from large private and public employers who often self-insure for job-related injuries.

Implications

According to "Capitol Alert," the report could bolster efforts by insurers to increase premiums on workers' compensation plans.

Insurers and other stakeholders are seeking to alter reforms made eight years ago to California's workers' compensation system, "Capitol Alert" reports?(Walters, "Capitol Alert," Sacramento Bee, 6/26).

Details of Reforms

In 2004, then-Gov. Arnold Schwarzenegger (R)?convinced lawmakers to make several cost-cutting changes to the workers' compensation system. Schwarzenegger's administration subsequently adopted additional administrative rules.

The changes have reduced employer costs, but other stakeholders have criticized the changes.

They argue that, under the changes:

  • Disabled workers are not receiving adequate compensation;
  • Health care is too tightly controlled; and
  • Insurers are losing money on workers' compensation policies (California Healthline, 3/29).

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U.S. seizes cargo ship suspected of carrying stowaways

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Wednesday, June 27, 2012

UK air pollution reprieve refused

Government plans to delay air pollution improvements in 12 UK areas have been refused by the European Commission, which says air quality must improve.

The UK may now face fines if it fails to improve air quality quickly.

Air pollution reduces average life expectancy in the UK by up to eight months, according to the government's own statistics.

But ministers have been slow to meet agree European standards on cutting levels of the pollutant NO2.

This comes mainly from vehicles. It causes problems with breathing - particularly for people with heart or lung problems.

Continue reading the main story

?Start Quote

Air pollution is recognised by the government as the second biggest public health threat, after smoking?

End Quote

The UK has been denied permission by the commission to delay air quality improvements in 12 areas - Aberdeen and north-east Scotland; Belfast; Birkenhead; Brighton; Bristol; Liverpool; Preston; Sheffield; south-west England; south Wales; Swansea and Tyneside.

Second-biggest threat

A judgement will be made at a later date on government plans to delay meeting NO2 standards in major cities until 2020 - or in the case of London, 2025.

London has the worst air of any European capital, and the UK is likely to be fined over the failure.

Air pollution is recognised by the government as the second-biggest public health threat, after smoking. It costs the UK an estimated ?20bn a year - that's more than twice the amount estimated for obesity, which gets far more publicity.

Daniel Instone, giving evidence on behalf of Defra, said ministers were considering a nationwide network of low-emission zones in which the most polluting vehicles were banned.

Simon Birkett, a campaigner from Clean Air in London, said the commission's ruling suggested that such a network would now be inevitable.

NO2 pollution affects long-term health. Experts giving evidence to the Environment Committee, EFRA, said the health of Olympic athletes visiting over the summer should not be harmed as long as the UK avoids a heat-induced smog episode.

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First full universe simulation zooms in on dark matter

Sandrine Ceurstemont, editor, New Scientist TV

Most of the universe is thought to be made up of mysterious dark matter that nobody has ever seen. Now you can get a glimpse of what its structure might look like thanks to the first simulation that spans the whole observable universe.?

Created by Jean-Michel Alimi?from the French National Centre for Scientific Research (CNRS) and colleagues from the DEUS consortium, the model covers 90 billion light years, which is the size of the universe that we are able to see, and follows 550 billion particles the mass of our Milky Way. This video starts with a large scale view of the distribution of dark matter in the cosmos today, which looks quite homogeneous. But as it zooms in, its structure becomes visible, showing clumps and filaments separated by expanses of void.

The simulation traces the evolution of dark matter as predicted by the standard model of cosmology, from the time the universe was in its infancy to the present. It mimics gravitational forces between all the clumps and the fact that they are moving in an expanding universe.

The team plans to complete further simulations using two other cosmological models. If dark matter is ever observed, a comparison with these theoretical results could help determine which model is valid.

The system should also be sophisticated enough to generate a more detailed picture of the universe. "These simulations concern only gravity and dark matter," says Pier-Stefano Corasaniti, a member of the team. "But I think the performance of the algorithms are becoming efficient enough to run simulations that include baryonic gas or dark energy fluid itself."

If you enjoyed this post, see what the shape of dark matter around the Milky Way might look like or watch our One-Minute Physics episode about dark matter.

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Palladium-gold nanoparticles clean TCE a billion times faster than iron filings

Palladium-gold nanoparticles clean TCE a billion times faster than iron filings [ Back to EurekAlert! ] Public release date: 27-Jun-2012
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Contact: David Ruth
david@rice.edu
713-348-6327
Rice University

In the first side-by-side tests of a half-dozen palladium- and iron-based catalysts for cleaning up the carcinogen TCE, Rice University scientists have found that palladium destroys TCE far faster than iron -- up to a billion times faster in some cases.

The results will appear in a new study in the August issue of the journal Applied Catalysis B: Environmental.

TCE, or trichloroethene, is a widely used chemical degreaser and solvent that's found its way into groundwater supplies the world over. The TCE molecule, which contains two carbon atoms and three chlorine atoms, is very stable. That stability is a boon for industrial users, but it's a bane for environmental engineers.

"It's difficult to break those bonds between chlorine and carbon," said study author Michael Wong, professor of chemical and biomolecular engineering and of chemistry at Rice. "Breaking some of the bonds, instead of breaking all the carbon-chlorine bonds, is a huge problem with some TCE treatment methods. Why? Because you make byproducts that are more dangerous than TCE, like vinyl chloride.

"The popular approaches are, thus, those that do not break these bonds. Instead, people use air-stripping or carbon adsorption to physically remove TCE from contaminated groundwater," Wong said. "These methods are easy to implement but are expensive in the long run. So, reducing water cleanup cost drives interest in new and possibly cheaper methods."

In the U.S., TCE is found at more than half the contaminated waste sites on the Environmental Protection Agency's Superfund National Priorities List. At U.S. military bases alone, the Pentagon has estimated the cost of removing TCE from groundwater to be more than $5 billion.

In the search for new materials that can break down TCE into nontoxic components, researchers have found success with pure iron and pure palladium. In the former case, the metal degrades TCE as it corrodes in water, though sometimes vinyl chloride is formed. In the latter case, the metal acts as a catalyst; it doesn't react with the TCE itself, but it spurs reactions that break apart the troublesome carbon-chlorine bonds. Because iron is considerably cheaper than palladium and easier to work with, it is already used in the field. Palladium, on the other hand, is still limited to field trials.

Wong led the development of a gold-palladium nanoparticle catalyst approach for TCE remediation in 2005. He found it was difficult to accurately compare the new technology with other iron- and palladium-based remediation schemes because no side-by-side tests had been published.

"People knew that iron was slower than palladium and palladium-gold, but no one knew quantitatively how much slower," he said.

In the new study, a team including Wong and lead author Shujing Li, a former Rice visiting scholar from Nankai University, China, ran a series of tests on various formulations of iron and palladium catalysts. The six included two types of iron nanoparticles, two types of palladium nanoparticles -- including Wong's palladium-gold particle -- and powdered forms of iron and palladium-aluminum oxide.

The researchers prepared a solution of water contaminated with TCE and tested each of the six catalysts to see how long they took to break down 90 percent of the TCE in the solution. This took less than 15 minutes for each of the palladium catalysts and more than 25 hours for the two iron nanoparticles. For the iron powder, it took more than 10 days.

"We knew from previous studies that palladium was faster, but I think everyone was a bit surprised to see how much faster in these side-by-side tests," Li said.

Wong said the new results should be helpful to those who are trying to compare the costs of conducting large-scale tests on catalytic remediation of TCE.

###

Additional co-authors include former Rice undergraduate Chris Romanczuk, former Rice graduate student Yu-Lun Fang and faculty members Zhaohui Jin and Tielong Li, both of Nankai University. The research was supported by the National Science Foundation, the Welch Foundation and the China Scholarship Council.

High-resolution images are available for download at: http://news.rice.edu/wp-content/uploads/2012/06/0629_TCE_Water_lg.jpg

CREDIT: Photos.com/Rice University

http://news.rice.edu/wp-content/uploads/2012/06/0629_TCE_Wong_lg.jpg

CAPTION: Michael Wong
CREDIT: Rice University

Located on a 300-acre forested campus in Houston, Rice University is consistently ranked among the nation's top 20 universities by U.S. News & World Report. Rice has highly respected schools of Architecture, Business, Continuing Studies, Engineering, Humanities, Music, Natural Sciences and Social Sciences and is known for its "unconventional wisdom." With 3,708 undergraduates and 2,374 graduate students, Rice's undergraduate student-to-faculty ratio is 6-to-1. Its residential college system builds close-knit communities and lifelong friendships, just one reason why Rice has been ranked No. 1 for best quality of life multiple times by the Princeton Review and No. 4 for "best value" among private universities by Kiplinger's Personal Finance. To read "What they're saying about Rice," go to www.rice.edu/nationalmedia/Rice.pdf.


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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.


Palladium-gold nanoparticles clean TCE a billion times faster than iron filings [ Back to EurekAlert! ] Public release date: 27-Jun-2012
[ | E-mail | Share Share ]

Contact: David Ruth
david@rice.edu
713-348-6327
Rice University

In the first side-by-side tests of a half-dozen palladium- and iron-based catalysts for cleaning up the carcinogen TCE, Rice University scientists have found that palladium destroys TCE far faster than iron -- up to a billion times faster in some cases.

The results will appear in a new study in the August issue of the journal Applied Catalysis B: Environmental.

TCE, or trichloroethene, is a widely used chemical degreaser and solvent that's found its way into groundwater supplies the world over. The TCE molecule, which contains two carbon atoms and three chlorine atoms, is very stable. That stability is a boon for industrial users, but it's a bane for environmental engineers.

"It's difficult to break those bonds between chlorine and carbon," said study author Michael Wong, professor of chemical and biomolecular engineering and of chemistry at Rice. "Breaking some of the bonds, instead of breaking all the carbon-chlorine bonds, is a huge problem with some TCE treatment methods. Why? Because you make byproducts that are more dangerous than TCE, like vinyl chloride.

"The popular approaches are, thus, those that do not break these bonds. Instead, people use air-stripping or carbon adsorption to physically remove TCE from contaminated groundwater," Wong said. "These methods are easy to implement but are expensive in the long run. So, reducing water cleanup cost drives interest in new and possibly cheaper methods."

In the U.S., TCE is found at more than half the contaminated waste sites on the Environmental Protection Agency's Superfund National Priorities List. At U.S. military bases alone, the Pentagon has estimated the cost of removing TCE from groundwater to be more than $5 billion.

In the search for new materials that can break down TCE into nontoxic components, researchers have found success with pure iron and pure palladium. In the former case, the metal degrades TCE as it corrodes in water, though sometimes vinyl chloride is formed. In the latter case, the metal acts as a catalyst; it doesn't react with the TCE itself, but it spurs reactions that break apart the troublesome carbon-chlorine bonds. Because iron is considerably cheaper than palladium and easier to work with, it is already used in the field. Palladium, on the other hand, is still limited to field trials.

Wong led the development of a gold-palladium nanoparticle catalyst approach for TCE remediation in 2005. He found it was difficult to accurately compare the new technology with other iron- and palladium-based remediation schemes because no side-by-side tests had been published.

"People knew that iron was slower than palladium and palladium-gold, but no one knew quantitatively how much slower," he said.

In the new study, a team including Wong and lead author Shujing Li, a former Rice visiting scholar from Nankai University, China, ran a series of tests on various formulations of iron and palladium catalysts. The six included two types of iron nanoparticles, two types of palladium nanoparticles -- including Wong's palladium-gold particle -- and powdered forms of iron and palladium-aluminum oxide.

The researchers prepared a solution of water contaminated with TCE and tested each of the six catalysts to see how long they took to break down 90 percent of the TCE in the solution. This took less than 15 minutes for each of the palladium catalysts and more than 25 hours for the two iron nanoparticles. For the iron powder, it took more than 10 days.

"We knew from previous studies that palladium was faster, but I think everyone was a bit surprised to see how much faster in these side-by-side tests," Li said.

Wong said the new results should be helpful to those who are trying to compare the costs of conducting large-scale tests on catalytic remediation of TCE.

###

Additional co-authors include former Rice undergraduate Chris Romanczuk, former Rice graduate student Yu-Lun Fang and faculty members Zhaohui Jin and Tielong Li, both of Nankai University. The research was supported by the National Science Foundation, the Welch Foundation and the China Scholarship Council.

High-resolution images are available for download at: http://news.rice.edu/wp-content/uploads/2012/06/0629_TCE_Water_lg.jpg

CREDIT: Photos.com/Rice University

http://news.rice.edu/wp-content/uploads/2012/06/0629_TCE_Wong_lg.jpg

CAPTION: Michael Wong
CREDIT: Rice University

Located on a 300-acre forested campus in Houston, Rice University is consistently ranked among the nation's top 20 universities by U.S. News & World Report. Rice has highly respected schools of Architecture, Business, Continuing Studies, Engineering, Humanities, Music, Natural Sciences and Social Sciences and is known for its "unconventional wisdom." With 3,708 undergraduates and 2,374 graduate students, Rice's undergraduate student-to-faculty ratio is 6-to-1. Its residential college system builds close-knit communities and lifelong friendships, just one reason why Rice has been ranked No. 1 for best quality of life multiple times by the Princeton Review and No. 4 for "best value" among private universities by Kiplinger's Personal Finance. To read "What they're saying about Rice," go to www.rice.edu/nationalmedia/Rice.pdf.


[ Back to EurekAlert! ] [ | E-mail | Share Share ]

?


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.


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Tuesday, June 26, 2012

Greenland ice may exaggerate magnitude of 13,000-year-old deep freeze

ScienceDaily (June 25, 2012) ? Ice samples pulled from nearly a mile below the surface of Greenland glaciers have long served as a historical thermometer, adding temperature data to studies of the local conditions up to the Northern Hemisphere's climate.

But the method -- comparing the ratio of oxygen isotopes buried as snow fell over millennia -- may not be such a straightforward indicator of air temperature.

"We don't believe the ice cores can be interpreted purely as a signal of temperature," says Anders Carlson, a University of Wisconsin-Madison geosciences professor. "You have to consider where the precipitation that formed the ice came from."

According to a study published June 25 by the Proceedings of the National Academy of Sciences, the Greenland ice core drifts notably from other records of Northern Hemisphere temperatures during the Younger Dryas, a period beginning nearly 13,000 years ago of cooling so abrupt it's believed to be unmatched since.

Such periods of speedy cooling and warming are of special interest to climate scientists, who are teasing out the mechanisms of high-speed change to better understand and predict the changes occurring in our own time.

In the case of the Younger Dryas, average temperatures -- based on the Greenland ice -- plummeted as much as 15 degrees Celsius in a few centuries, and then shot back up nearly as much (over just decades) about 1,000 years later.

"In terms of temperature during the Younger Dryas, the only thing that looks like Greenland ice cores are Greenland ice cores," Carlson says. "They are supposed to be iconic for the Northern Hemisphere, but we have four other records that do not agree with the Greenland ice cores for that time. That abrupt cooling is there, just not to the same degree."

Working with UW-Madison climatologist Zhengyu Liu, collaborators at the National Center for Atmospheric Research and others, Carlson found their computer climate model breaking down on the Younger Dryas.

While it could reliably recreate temperatures in the Oldest Dryas -- a similar cooling period about 18,000 years ago -- they just couldn't find a lever in the model that would simulate a Younger Dryas that matched the Greenland ice cores.

"You can totally turn off ocean circulation, have Arctic sea ice advance all the way across the North Atlantic, and you still will have a warmer climate during the Younger Dryas than the Oldest Dryas because of the carbon dioxide," Carlson says.

By the time the Younger Dryas rolled around, there was more carbon dioxide in the air -- about 50 parts per million more. The warming effects of that much CO2 overwhelmed the rest of the conditions that make the Oldest and Younger Dryas so alike, and demonstrates a heightened sensitivity for Arctic temperatures to rising greenhouse gases in the atmosphere.

The researchers zeroed in on the Northern Hemisphere's temperature outlier, Greenland ice cores, and found that the conversion of oxygen isotope ratio to temperature typically used on the ice cores did not account for the sort of crash climate change occurring during the Younger Dryas. It assumes prevailing winds and jet streams and storm tracks are providing the moisture for Greenland precipitation from the Atlantic Ocean.

"The Laurentide ice sheet, which covered much of North America down into the northern United States, is getting smaller as the Younger Dryas approaches," Carlson says. "That's like taking out a mountain of ice three kilometers high. As that melts, it allows more Pacific Ocean moisture to cross the continent and hit the Greenland ice sheet." The two oceans have distinctly different ratios of oxygen isotopes, allowing for a different isotope ratio where the water falls as snow.

"We ran an oxygen isotope-enabled atmosphere model, so we could simulate what these ice cores are actually recording, and it can match the actual oxygen isotopes in the ice core even though the temperature doesn't cool as much," Carlson says. "That, to us, means the source of precipitation has changed in Greenland across the last deglatiation. And therefore that the strict interpretation of this iconic record as purely temperature of snowfall above this ice sheet is wrong."

By the study's findings, Greenland temperatures may not have cooled as significantly as climate headed into the Younger Dryas relative to the Oldest Dryas, because of the rise in atmospheric carbon dioxide that had occurred since the Oldest Dryas.

"You can say at the end of the Younger Dryas it warmed 10, plus or minus five, degrees Celsius. But what happened on this pathway into the event, you can't see," Carlson says. It's a fresh reminder from an ancient ice core that climate science is full of nuance, according to Carlson.

"Abrupt climate changes have happened, but they come with complex shifts in the way climate inputs like moisture moved around," he says. "You can't take one difference and interpret it solely as changes in temperature, and that's what we're seeing here in the Greenland ice cores."

The National Science Foundation and Department of Energy funded the research.

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Story Source:

The above story is reprinted from materials provided by University of Wisconsin-Madison. The original article was written by Chris Barncard.

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


Journal Reference:

  1. Zhengyu Liu, Anders E. Carlson, Feng He, Esther C. Brady, Bette L. Otto-Bliesner, Bruce P. Briegleb, Mark Wehrenberg, Peter U. Clark, Shu Wu, Jun Cheng, Jiaxu Zhang, David Noone, and Jiang Zhu. Younger Dryas cooling and the Greenland climate response to CO2. Proceedings of the National Academy of Sciences, June 25, 2012 DOI: 10.1073/pnas.1202183109

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.

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Obama Clings to a Narrow Lead (WSJ)

Share With Friends: Share on FacebookTweet ThisPost to Google-BuzzSend on GmailPost to Linked-InSubscribe to This Feed | Rss To Twitter | Politics - Top Stories Stories, RSS Feeds and Widgets via Feedzilla.

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Vizio's Google TV box emerges as the Co-Star Stream Player, goes up for pre-order in July with OnLive gaming

Vizio Co-Star hands-on

Remember the Vizio VAP430 Stream Player that we tried during CES? Half a year later, the Google TV hub is getting full launch details, just in time for Google I/O. Along with receiving the much more elegant title of Co-Star Stream Player, the set-top box now bakes in OnLive streaming game support -- the Co-Star could, in theory, replace a game console for any American with a good broadband connection. Whether or not playing Just Cause 2 on a TV is in the cards, the hub ticks all the 2012 Google TV checkboxes, including a hybrid keyboard and remote, 3D-capable 1080p video and DLNA media sharing. Before you rush to the local big-box store to pick one up, be warned that pre-orders don't start until July, and then only on Vizio's website. The $100 price, however, will make it considerably easier to wait.

Continue reading Vizio's Google TV box emerges as the Co-Star Stream Player, goes up for pre-order in July with OnLive gaming

Vizio's Google TV box emerges as the Co-Star Stream Player, goes up for pre-order in July with OnLive gaming originally appeared on Engadget on Tue, 26 Jun 2012 09:15:00 EDT. Please see our terms for use of feeds.

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Monday, June 25, 2012

Real Estate Excellence Academy: Property Management Training ...

Author of PME and Company Director ? Real Estate Excellence Academy Pty Ltd Property management is a very diverse, challenging and interesting career. No two days are ever the same. What property managers do is mind boggling to some but to many of us it is ?all in a day?s work?. Property management is really about People Management.
All property managers must remember that ?nothing is your problem? (so to speak) and in the great game that is property management, your key role is the following
???????? Maximise your lessor?s income and minimise their loss
???????? Always act in the best interest (both ethically and legally) of your licensee and the lessor
???????? Always remember your duty of care to the tenant
???????? And remember; your main duty is the following
o?? Educate your lessors and tenants to the best of your ability
o?? Communicate with you lessor and tenants to the best of your ability;
o?? Negotiate with your lessors and tenants to the best of your ability.
Knowledge is power and continual self and professional development is part of the key to successful property management.

I know that you and your office gain great benefit from PME and I thank you for your valued business and support.

PME = Property Management Procedures and Training Guide

Over 100 best practice forms and information are in addition to the 250 plus page procedures and training manual.? PME also includes the following on the PME CD; ??????? Personalised tenancy sign up CD ? valued at $880 standalone product ? non-member rate ??????? QCAT Training CD ? valued at $330 standalone product ? non-member rate ??????? Drugs in Property Awareness CD - valued at $55? standalone product ? non-member rate

??????? QCAT relevant Decisions and appeals up until June 30th 2012

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Deploying Windows 8 Virtual Desktop Infrastructure on Windows Server 2012

Several months ago, fellow blogger Kees Baggerman covered?RDS: Windows 8 Scenario-based RDS deployment?which included a 10 minute YouTube video on RDS Session Virtualization (aka terminal services).? In this article, I am going to cover the other element of RDS scenario-based installation, Virtual Desktop Infrastructure. Microsoft VDI technologies have been around for several iterations of Hyper-V and Server 2008. With 2008 R2 SP1 Microsoft introduced RemoteFX, a promising technology for virtual desktop GPU acceleration.? However, in the past there have been several challenges with deploying Microsoft VDI, namely the initial desktop provisioning and stateless pooling.? With Server 2012, these two components have several promising enhancements.

First, Server 2012 now has a built-in provisioning mechanism whereby a powered down and SysPrep?d Hyper-V virtual machine can be used as a master desktop to provision collections of virtual desktops. This means that System Center Virtual Machine Manager is no longer a requirement or nicety for the initial provisioning of the systems. Additionally, this built-in provisioning mechanism uses VHD differencing disks, similar to the VMware linked clone and Citrix MCS disk chaining technologies.? Second, Server 2012 now has a stateless pooling and reverting mechanism whereby changes to the virtual desktops are reverted upon logoff. This means pooled VDI desktops are no longer tainted by previously logged in users. To demonstrate these capabilities, let?s start by deploying a simple VDI infrastructure including three servers: a Connection Broker (CB01), a Web Access server (WA01), and a Virtualization Host (HV01). Each of these three systems consists of typical installations of Server 2012, joined to a single domain.

Read the entire article here:?Deploying Windows 8 Virtual Desktop Infrastructure on Windows Server 2012 at ITVCE.com

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