Sunday, February 24, 2013

Republicans Fake Obama Corruption but PA?s 3 Sisters Conviction Shows How Corrupt the GOP Is

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In the fantasy world of Republicans President Obama is corrupt, but once again the story of the three very corrupt, powerful, Republican, and very convicted Orie sisters reminds of us which party has the corruption problem.

It is not very often that a state Supreme Court Justice and a state senator get convicted of campaign corruption, but it is even more rare when it occurs in two separate trials and the two are sisters.

The sisters Justice Joan Orie Melvin, older sister Janine Orie, and former state senator Jane Orie have all been convicted of public corruption for a scheme that used state employees to do campaign work. It a story that involves the Ories using a psychic who claimed that angels whispered answers to her, and lots of allegations that the downfall of the Orie dynasty was a plot by a Democratic prosecutor.

The Ories demonstrated that they were good Republicans the moment they were led away on chains by blaming their convictions on a Democrat.

According to WTAE,

The Ories have argued the prosecution is the result of a political vendetta by Allegheny County District Attorney Stephen Zappala Jr., a Democrat, who has repeatedly denied ulterior motives.

When the investigation first became public in late 2009, the sisters claimed they were being targeted because Zappala?s family has interests in legalized gambling, which the Ories opposed expanding in Pennsylvania.

The allegations grew uglier, when Melvin ? after it was known Sen. Orie was being investigated but before the justice was charged ? called for an audit of two child care centers that paid kickbacks to two judges in northeastern Pennsylvania?s Luzerne County who sent troubled youths to the facilities. The facilities were co-owned by Gregory Zappala, the prosecutor?s brother, who was never charged in the scheme and has repeatedly denied wrongdoing.

Republicans always claim that Democrats are corrupt and/or corrupting something. This is their standard excuse for voter suppression and voter ID laws. It is their excuse for destroying the social safety net, as in, ?welfare queens and corrupt African Americans abusing food stamps.? It is even their excuse for their opposition to gun control, ?We need our guns to defend against the tyranny of the government.?

What the Orie convictions remind us of again is that Republicans talk about Democrats being corrupt, but the Republicans are the ones who are committing the crimes. There is Scott Walker?s misuse of staff for his gubernatorial campaign in Wisconsin, or a Maggie Brooks who used government-contracted laborers? work on her political campaign. The kind of corruption the Orie sisters were convicted of appears to be the norm in Republican politics.

The next time some Republican tries to tell you tall tales about ?Obama?s corruption? remind them of the Orie sisters and all the other Republicans who have really been convicted of the crimes that they accuse the president of committing.

Republicans should know all about political corruption. After all, they?re the ones doing it most of it.

Source: http://feedproxy.google.com/~r/politicususa/fJAl/~3/PNDR4Sf1H-Y/gop-corruption-family-style-3-powerful-pa-sisters-guilty-public-corruption.html

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Canada thrashes Nicaragua, advances to CONCACAF U-20 quarters

Canada must go through a familiar foe to earn a spot in this summer's FIFA Under-20 World Cup.

Caleb Clarke led the way with two goals as Canada advanced to the quarter-finals of the CONCACAF under-20 championship with a 5-1 win over Nicaragua on Friday.

Canada must now defeat the United States on Tuesday to return to the World Cup in Turkey for the first time since 2007. The Americans beat Costa Rica 1-0 earlier in the night to win Group A and assure a match with the Canadians, who finished runner-up in Group B behind Cuba.

"We were quite comfortable at 3-0 and obviously with the penalty at halftime [Nicaragua] made it 3-1, but with a man down it was always a difficult task for them," said head coach Nick Dasovic. "We've got a massive game against the United States and we have a few days to prepare for it."

Samuel Piette opened the scoring in the sixth minute before Clarke doubled the lead in the 24th minute and added his second in the 54th minute.

Mauro Eustaquio scored from the penalty spot in the 38th minute to put Canada up by three goals before Eulises Pavon scored Nicaragua's lone goal on a penalty in first half stoppage time.

Ben McKendry scored Canada's fifth goal in the 64th minute.

Piette got Canada started with a sensational goal from 25 yards away. Defender John Dollery ? who plays with Crawley Town in England's League One ? played a free kick along the ground from the right side toward Piette. He then hammered a right-footed effort that had pace and swerve over the helpless Nicaraguan goalkeeper.

"We have worked on a few things on the training ground but I saw he was open," said Dollery. "To be fair to him, he had to hit it as well as he did."

Clarke's first goal came on another set piece when Canada had a corner kick. The Vancouver Whitecaps striker made a run to the near post and tapped in Ben Fisk's well-placed corner.

Clarke also hit the crossbar with a left-footed shot in the first half and was the beneficiary of some stellar passing all night.

"Fantastic crosses by [Fisk] and [Dollery]," said Clarke. "They were great crosses on a silver platter and all I had to do was pass them in."

Canada's third goal came from the penalty spot when Piette's shot struck Cristian Gutierrez's arm. Gutierrez was sent off for his second yellow card and Eustaquio scored by putting the ball in the corner to his right.

The game wasn't without controversy as Canada's Alessandro Riggi was struck in the face by a Nicaraguan player, an offence that carries an automatic red card offence.

Not only was there no red card, but Nicaragua won a penalty just seconds later on what was a marginal call, at best. Piette admitted after the game that the penalty call was on him but it was largely due to some expert theatrics by the Nicaraguan player.

"I was marking him and I was standing right there and he dove," said Piette. "I give him 10 on 10 on the dive but things happen and fortunately we won the game."

Pavon made no mistake with his penalty but the game was put beyond all doubt when Clarke got on the end of Dollery's cross in the second half for his second goal of the night and McKendry scored from close range with 25 minutes remaining.

Canada had gotten off to a shaky start at the tournament, losing 2-1 to Cuba on Monday. Cuba won the group with a 3-0 victory over Nicaragua on Wednesday.

Source: http://www.cbc.ca/sports/soccer/story/2013/02/23/sp-concacaf-canada-soccer-nicaragua-120222.html?cmp=rss

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Saturday, February 23, 2013

Is China's Military Behind Cyberattacks on U.S.?

Copyright ? 2013 NPR. For personal, noncommercial use only. See Terms of Use. For other uses, prior permission required.

IRA FLATOW, HOST:

This is SCIENCE FRIDAY, I'm Ira Flatow. The Internet is the new battleground.

PRESIDENT BARACK OBAMA: We know foreign countries and companies swipe our corporate secrets. Now our enemies are also seeking the ability to sabotage our power grid, our financial institutions, our air traffic control systems. We cannot look back years from now and wonder why we did nothing in the face of real threats to our security and our economy.

FLATOW: In his State of the Union address, President Obama said we need to focus more on cybersecurity. That point was driven home this week by a report released by Mandiant, an American security firm, which claims a unit of the Chinese military has been carrying out extensive cyberespionage against the U.S. since 2006.

And it goes beyond stealing corporate secrets. The report says agencies that control critical infrastructure, everything from power grids to hydro, have been targeted by Chinese hackers. Is China engaged in cyberwarfare against the U.S.? And if it is, why are we so surprised? Doesn't the U.S. do it, don't - doesn't everybody do it?

In this brave new world of cybersecurity, how can we protect our most valuable networks and systems. Our number is 1-800-989-8255 if you'd like to get in on the conversation. You can also tweet us @scifri, @-S-C-I-F-R-I, go to our website at sciencefriday.com.

Jon Lindsay is a research fellow at the University of California Institute on Global Conflict and Cooperation, that's at U.C. San Diego. He joins us. Welcome to the program.

JON LINDSAY: Thanks, good to be here.

FLATOW: Is the president overstating the threat?

LINDSAY: Well, there's definitely a lot of malicious cyberactivity that's happening. The question is whether this really raises to the level of a national security threat, whether because it is a massive transfer of wealth through espionage or if there are risks to our critical infrastructure on the level of, you know, large-scale military attack. And there are big debates on both of those questions.

FLATOW: But he is right about all the attacks that are occurring.

LINDSAY: Absolutely. We can certainly observe a lot of activity, especially from China there is a lot of hacking activity. But again the question is how do you relate activity to actual strategic effect. And that is a more tenuous question.

FLATOW: Let's talk about this new report. What kinds of things did we learn from it?

LINDSAY: So this new report is fascinating for - you know, we've had several very interesting reports over the last several years of hacking, which almost certainly originated in China, but that was always based on looking at the motive, the kinds of targets that were hit, maybe a history of attacking, things like this. This is the first report in the public domain, which makes a very, very strong case for not only China, not only the Chinese military but this particular unit.

So, you know, I think that attribution case in this was pretty good.

FLATOW: So you think that the real news is that it's in the public domain because most people in the business know this already?

LINDSAY: Yeah, I think that's true. I mean, when you look at the kinds of information that they provided, no piece of information on its own was a smoking gun, right. So I mean you have Internet addresses from China, you have servers that are in China, you have telephone numbers used to verify Gmail accounts that are in China. You have some, you know, Chinese language in some of the code and idiosyncratic behavior and whatnot.

So, you know, any of these by themselves don't work, but when you see how you put them all together, that's how you see how the fusion of all that intelligence can help to make the attribution case. So I think this just helps to highlight the kind of information that people in the forensics business have been tracking for a while.

FLATOW: And in the report, what type of organizations are being targeted?

LINDSAY: In the report, you know, they lay out a very wide range. I mean, it's everything from the energy industry to the chemical industry to information technology was one of the big ones. I mean, you name it. And what's very interesting is that there's a pretty good, you know, correlation between that and the strategic emerging industries that China is interested in developing.

So again, this is, you know, the kinds of targets are the kinds of things that, you know, China would be interested in.

FLATOW: Something like our infrastructure, like our electrical grid, things like that?

LINDSAY: Sure, but again, you know, you have to ask what is the reason that they're looking at these things. I mean, is - are they interested in finding out information about how it works so maybe they can improve their own operations or, you know, economic espionage? Or is this, you know, the toehold for the great cyber-Pearl Harbor?

And this is where it's - you know, I find that proposition a little bit harder to believe.

FLATOW: Is it more than you think for stealing company secrets or strategies for negotiating with the companies that they deal with all the time?

LINDSAY: Yes, I mean, there's a great deal of theft in all of these things, and you can definitely think of lots of things. There'd be research and development on products and processes that could be valuable, negotiating plans and strategies, mergers and acquisitions could be incredibly valuable, a lot of stuff.

But then all this information then gets, you know, sucked into the Chinese intelligence apparatus. The first question is: Well, are they actually getting that information? You know, we know that there's an incredible amount of junk information on networks and on the Internet in general. So finding that needle in the haystack when you've got the haystacks growing really quickly is very, very difficult.

Then they have to identify that that is useful information. Then they have to be able to get that to a customer that can use it. And there's a great deal of Chinese bureaucracy in the Chinese state between, you know, the PLA Third Department and the actual state-owned enterprises that might be able to use it.

Then they would have to recognize it. So, you know, I guess my bottom line is you can steal text, but you can't steal the context that makes that text really, really valuable. So we see a tremendous amount of information being sucked out that would be potentially useful, but to actually call that a transfer of wealth requires that the Chinese are actually able to do something with it, and that's something that we really do not know anything about.

And the Mandiant report did not give us any new information on that front.

FLATOW: But China can't be the only country that's doing this. Don't we all do it?

LINDSAY: I - that's a great point. You know, there was a - the U.S. government released a report a year and a half, two years ago that also named Russia as a major player in cyberespionage for economic purposes. But clearly the U.S. is very involved. You think of Stuxnet, Flame, Duqu, Gala, a lot of these kinds of things that were designed for, you know, more political- and military-type espionage.

This is certainly a new modality of information collection, and, you know, all countries with advanced intelligence organizations and military are in on the game.

FLATOW: Let me go to the phones, 1-800-989-8255. Let's go to Terry(ph) in Robbins, Tennessee. Hi Terry.

TERRY: Hello, Ira. Thank you.

FLATOW: Hey there, you're welcome.

TERRY: My question is the - well first of all, it's all of the above as far as the uses, but isn't all that outsourcing that we did of sending all of our computer manufacturing and everything to China really showing up to be real cheap now, that we're going to have to deal with all the repercussions?

FLATOW: Are you saying that - and this is an interesting point. If we're buying all oru hardware from China, could there not be stuff, Trojan horses and things inside the hardware they're sending us?

LINDSAY: Yeah, that's a really important concern. You know, we talk about the security of supply chains and the fact that, you know, China is the factory and the workshop of the world, especially on IT. You know, there could be a lot of back doors. And in fact this is a concern that prompted Australia to ban Huawei, which is the major telecommunications company, they build servers and routers, Internet infrastructure, they banned them from bidding on their high-speed backbone project.

There also was a House report on Huawei, which recommended against dealing with either Huawei or ZTE for exactly these kinds of reasons. You know, but that kind of shows you that, you know, that concern can have a huge business impact for these corporations. So do they necessarily have an interest in getting involved?

Plus, again, you know, I won't get into the technical details, but if you start thinking about, you know, if you put a bug in there, then actually being able to use it at a time and place of your choosing is going to be a really difficult proposition because supply chains are incredibly, incredibly complex. So being able to activate that logic bomb, if you will, and understanding where it is and understanding all of the other complex factors that go into its embeddedness in human and technical systems is a really, really hard thing.

So, you know, it's a genuine concern, but again it's a technical possibility is probably a lot greater than its actual probability.

FLATOW: Is there a high-tech fix to any of this snooping around?

LINDSAY: To snooping around? No, I don't think there's a high-tech fix because, you know, if you -you know, the Mandiant report and, you know, plenty of other reports from MacAfee or Symantec which kind of walk you through similar information show you that the weaknesses are less technical and more in exploiting just human gullibility or, you know, people who let their guard down.

Some of these phishing emails are incredibly sophisticated, right. I mean, if it comes from your boss, and it's talking about a project that you're working on, you're going to be very likely to open that file. Well, you've just installed a root kit onto your server, and now they can start moving laterally and, you know, compromising other pieces of the network.

FLATOW: So that's how they can do it? You had something called spear phishing, which is even higher level than regular - P-H-I-S-H, phishing.

LINDSAY: Yeah, so the term speak phishing means that, you know, they have identified you and your interests and your relationships. So for example, you know, you might get an email from one of your colleagues at NPR that says hey Ira, this is about the story that we're running next week. And you're like OK, that's interesting. You would open that up, bam you get hit.

So they made it very, very believable because they did the intelligence work on your background, which is now very easy to do because we have Twitter and Facebook, and people put all kinds of personal information that they can basically, you know, fake a contact.

FLATOW: Yeah, that's why I don't open my NPR mail anymore.

(LAUGHTER)

FLATOW: So is there - what do you see of the future here? Where is this headed?

LINDSAY: Well, I think that there's going to continue to be a lot of noise and friction in cyberspace. This isn't going to get fixed, but I think it's just going to be sort of the general level of background radiation that we will get used to. You know, when militaries go to war, there will be a cyber component, but people don't go to war because of cyberspace, you know, they just use it as one tool amongst many.

So, you know, it's going to be a complex world, but I don't think it's necessarily going to be a more dangerous world.

FLATOW: If you unplug for total security, can you have total security? Let's say you want to just unplug from the Internet and stay in-house.

LINDSAY: Yeah, absolutely. I mean, you know, the only reason that people can hack your computer is because you're connected to the network. So if you don't connect to anything, you can't do anything. But then it's not very useful. And this gets to the fundamental tradeoff in a lot of the policy that we're considering.

If we get really scared about the threat, and we start imposing, you know, technology standards and, you know, all kinds of things that would impact the productivity of our information networks, then you're going to see kind of the great gifts of the information economy start to be whittled away.

So right now we just don't have a good sense of how fast the threat is increasing relative to the productivity benefits of computers. And everything that I've looked at says that, you know, for every dollar that we make because of computers in the workplace, you know, we're definitely not losing a dollar, in fact we're losing, you know, far less than that.

FLATOW: All right, I've got to go, Jon.

LINDSAY: OK.

FLATOW: Thank you very much, Jon Lindsay of U.C. San Diego. We'll be right back after this break. Stay with us. I'm Ira Flatow; this is SCIENCE FRIDAY from NPR.

Copyright ? 2013 NPR. All rights reserved. No quotes from the materials contained herein may be used in any media without attribution to NPR. This transcript is provided for personal, noncommercial use only, pursuant to our Terms of Use. Any other use requires NPR's prior permission. Visit our permissions page for further information.

NPR transcripts are created on a rush deadline by a contractor for NPR, and accuracy and availability may vary. This text may not be in its final form and may be updated or revised in the future. Please be aware that the authoritative record of NPR's programming is the audio.

Source: http://www.npr.org/2013/02/22/172696686/is-chinas-military-behind-cyberattacks-on-u-s?ft=1&f=1007

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'Django Unchained' Christians Evangelizing Military Youth on the Taxpayer?s Dime

?

Quentin Tarantino deals in tawdry fiction writ large, bloody, and outrageous, as is the case with his latest Best Picture Oscar-nominated exploitation epic, " Django Unchained." Even he would be cowed by the pathetic tale of woe that follows.

From the onset of Operation Enduring Freedom in October 2001, U.S. military servicemembers and their families have borne the tragic brunt of prolonged operations in Afghanistan and Iraq. The Herculean task at hand, spanning the full spectrum of human endurance, from coping with multiple deployments to the hopelessly bleak, inhospitable frontlines of the War on Terror hasn't fallen on war fighters alone. Indeed, the oozing sores of perpetual anxiety,?debilitating depression, and other extreme disorders have proven themselves across military and civilian communities to be communicable diseases, affecting servicemembers and their dependents alike. Post-Traumatic Stress Disorder has become a household word across the nation, as active-duty servicemembers, for the first time in a generation, are more likely to fall on their own swords and take their own lives than face death in a war zone. This national tragedy continues to play out despite the phasing out of the U.S. role in Iraq and a sharp drop in troop levels in Afghanistan.

Some of the most acute psychological torment has fallen heaviest on servicemembers' children. Speaking as a veteran "military brat" from a family with a long and proud multigenerational tradition of service in our nation's armed forces, I can surely empathize with these youth in terms of the trials that they face.?

Enter Tarantinoesque fiction - except it's real.

It came as a sickening jolt of shock when we at the Military Religious Freedom Foundation (MRFF) learned that a group of?savagely opportunistic fundamentalist Christian vultures known as " Club Beyond" are using taxpayer dollars - let me emphasize that point one more time: TAXPAYER DOLLARS - and Department of Defense property to aggressively prey on these youth, as well as advertising their activities via the official Army.mil website. Club Beyond's mission, in their own words, is to "'celebrate life with military kids, introducing them to the life giver, Jesus Christ, and helping them to become more like him,' while offering youth a chance build meaningful relationships." [italics added]. All of the foregoing would be just fine and dandy if only the United States military was not subject to the United States Constitution - but it is. Thus, the just-mentioned "sickening jolt."

In other words, Club Beyond's?nefariously unconstitutional modus operandi is the outright, incontestable proselytization and religious indoctrination of vulnerable youth perceived to be "unchurched." Club Beyond is a sectarian enterprise with global reach. It's a subsidiary of a raging fundamentalist Christian parachurch organization called " Military Community Youth Ministries" (MCYM). MCYM offers, get this, "well chaperoned" weekly 90 minute club meetings, retreats, and Bible Study courses facilitated by "staff and volunteers [that] love young people and are available to journey with them through the hard challenges of adolescence, providing positive role models and exhibiting Christ-like behavior." Uh huh. Want some more?

Ok. Well, one of the ways that Club Beyond shows its "love" for these captive audiences is by hosting so-called "Purity Conferences," events where the widely debunked abstinence-only movement is, ahem, propagated. In fact, this year's Valentine's Day was the occasion for one such "Virginity Ball," an event called "Can't Lose." At this "ball," rather than receiving a realistic sexual education, youth enmeshed in a cannonade of hormonal tides of teenage passion are schooled solely in the ways of puritanical self-denial. The "virginity movement" has long been exposed as a transparent, fundamentalist Christian campaign that perniciously undermines reproductive health and cloaks old-school misogyny of the very worst kind in mawkish rhetoric regarding "preserving yourself for your future husband." Yep. That'll work for sure.

Source: http://www.alternet.org/speakeasy/michaelweinstein/django-unchained-christians-evangelizing-military-youth-taxpayers-dime

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UN rejects damage claim for Haiti cholera victims

UNITED NATIONS (AP) ? The United Nations rejected a claim for damages on behalf of more than 5,000 Haitian cholera victims and their families on Thursday, citing diplomatic immunity.

The claim was filed in November 2011 by the Institute for Justice and Democracy in Haiti, a Boston-based human rights group that contended the U.N. and its peacekeeping force are liable for hundreds of millions of dollars for failing to adequately screen peacekeeping soldiers.

It cited studies suggesting that the disease was inadvertently brought to Haiti by a U.N. battalion from Nepal, where cholera is endemic. A local contractor failed to properly sanitize the waste of a U.N. base, and the bacteria leaked into a tributary of one of Haiti's biggest rivers, according to one study by a U.N.-appointed panel.

Cholera has sickened nearly 500,000 people and killed over 7,750 people since the outbreak began in October 2010, according to the Haitian government. About half the people in the country of 10 million have no bathroom at all and sanitation access is the worst in the Western Hemisphere.

U.N. spokesman Martin Nesirky said the United Nations informed representatives of the claimant of the U.N. rejection on Thursday.

Secretary-General Ban Ki-moon also called Haitian President Michel Martelly to inform him of the decision "and to reiterate the commitment of the United Nations to the elimination of cholera in Haiti," Nesirky said.

Brian Concannon, the institute's director, said that after 15 months, the rejection was a single sentence, based on the world organization's immunity, which said the claims are "not receivable" because they concern "a review of political and policy matters."

"Our case is about the U.N. dumping contaminated sewage in Haiti's waters that has caused thousands of deaths," he said. "Under this definition, any harm that the U.N. does to anybody would be a matter of policy."

Concannon told The Associated Press: "We're disappointed because the U.N. is passing up a chance to stop cholera's killing, and to show leadership in promoting the rule of law."

Mario Joseph, lead attorney for the victims, added: "It is disgraceful that the U.N. will not even consider compensating the thousands of families who have lost their children, mothers, fathers, brothers and sisters due to the UN's wrongdoing."

Concannon, a co-counsel for the victims, said the institute's next step will be to go to a national court to seek compensation for the victims, "but we haven't decided which one yet," possibly in Haiti, the United States or Europe.

The institute was seeking a minimum of $100,000 for each bereaved family and $50,000 for each cholera survivor.

When the compensation claim was filed with the secretary-general and the claims unit for the U.N. peacekeeping mission in Haiti in 2011, Concannon said he hoped the U.N. peacekeeping force would create a lifesaving program that would provide sanitation, potable water and medical treatment. He also said he wanted a public apology for the victims.

In December, Ban announced a $2.27 billion initiative to help eradicate cholera in Haiti and the Dominican Republic, which share the island of Hispaniola, and vowed to work aggressively to secure donations for the ambitious but still mostly unfunded 10-year plan.

Nesirky said Thursday that the secretary-general "again expresses his profound sympathy for the terrible suffering caused by the cholera epidemic, and calls on all partners in Haiti and the international community to work together to ensure better health and a better future for the people of Haiti."

Source: http://news.yahoo.com/un-rejects-damage-claim-haiti-cholera-victims-203706299.html

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Conserving corals by understanding their genes

Friday, February 22, 2013

In reef-building corals variations within genes involved in immunity and response to stress correlate to water temperature and clarity, finds a study published in BioMed Central's open access journal BMC Genetics. This information could be used to conserve or rebuild reefs in areas affected by climate change, by changes in extreme weather patterns, increasing sedimentation or altered land use.

A research team led by the Australian Institute of Marine Science, and in collaboration with Penn State University and the Aix-Marseille University, studied DNA variations (Single Nucleotide Polymorphisms, SNPs) across populations of reef corals found at a range of temperatures and water clarity along the Great Barrier Reef.

SNPs which correlated to water clarity and water temperature preferred by cauliflower coral were found in genes involved in providing immune response, and regulating stress-induced cell-death. This means that coral with a specific version of these genes tended to grow at higher temperatures (or water clarity) and another variant at lower. A similar story was found for staghorn coral - SNP in genes involved in detoxification, immune response, and defense against reactive oxygen damage, were found to be associated with temperature or to water clarity.

Dr Petra Lundgren, from The Australian Institute of Marine Science, explained, "Corals are particularly vulnerable to climate change. Not only is the temperature of the water they live in affected but extreme weather and higher rainfall leads to increased levels of sediment, agricultural runoff, and fresh water on the reef. This work opens up possibilities for us to enhance reef resilience and recovery from impacts of climate change and pollution. For example, if in the future we need to restore coral populations, we can make sure that we use the most robust strains of corals to do so."

###

BioMed Central: http://www.biomedcentral.com

Thanks to BioMed Central for this article.

This press release was posted to serve as a topic for discussion. Please comment below. We try our best to only post press releases that are associated with peer reviewed scientific literature. Critical discussions of the research are appreciated. If you need help finding a link to the original article, please contact us on twitter or via e-mail.

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Source: http://www.labspaces.net/126981/Conserving_corals_by_understanding_their_genes

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Small groups of brain cells store concepts for memory formation -- from Luke Skywalker to your grandmother

Feb. 22, 2013 ? Concepts in our minds -- from Luke Skywalker to our grandmother -- are represented by their own distinct group of neurons, according to new research involving a University of Leicester neuroscientist.

The research, by University of Leicester neuroscientist Professor Rodrigo Quian Quiroga together with Professor Itzhak Fried, of the UCLA David Geffen School of Medicine, Tel Aviv Sourasky Medical Center and Tel Aviv University, and Professor Christof Koch, of the California Institute of Technology and Allen Institute for Brain Science, Seattle, is featured in a recent article in the magazine Scientific American.

Recent experiments during brain surgeries have shown that small groups of brain cells are responsible for encoding memories of specific people or objects.

These neurons may also represent different variations of one thing -- from the name of a person to their appearance from many different viewpoints.

The researchers believe that single concepts may be held in as little as thousands of neurons or less -- a tiny fraction of the billion or so neurons contained in the medial temporal lobe, which is a memory related structure within the brain.

The group were able to monitor the brain activity of consenting patients undergoing surgery to treat epilepsy. This allowed the team to monitor the activity of single neurons in conscious patients while they looked at images on laptop screens, creating and recalling memories.

In previous experiments, they had found that single neurons would 'fire' for specific concepts -- such as Luke Skywalker -- even when they were viewing images of him from different angles or simply hearing or reading his name.

They have also found that single neurons can also fire to related people and objects -- for instance, the neuron that responded to Luke Skywalker also fired to Yoda, another Jedi from Star Wars.

They argue that relatively small groups of neurons hold concepts like Luke Skywalker and that related concepts such as Yoda are held by some but not all of the same neurons. At the same time, a completely separate set of neurons would hold an unrelated concept like Jennifer Aniston.

The group believes this partially overlapping representation of related concepts are the neural underpinnings of encoding associations, a key memory function.

Professor Quian Quiroga said: "After the first thrill when finding neurons in the human hippocampus with such remarkable firing characteristics, converging evidence from experiments we have been carrying out in the last years suggests that we may be hitting one of the key mechanisms of memory formation and recall.

"The abstract representation of concepts provided by these neurons is indeed ideal for representing the meaning of the sensory stimuli around us, the internal representation we use to form and retrieve memories. These concepts cells, we believe, are the building blocks of memory functions."

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Journal Reference:

  1. Rodrigo Quian Quiroga, Itzhak Fried, Christof Koch. Brain Cells for Grandmother. Scientific American, 2013; 308 (2): 30 DOI: 10.1038/scientificamerican0213-30

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

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Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_health/~3/wNTYLA3AgvU/130222083049.htm

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