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Sunday, March 31, 2013
Rubio: Immigration deal still needs hashing out
Republican Sen. Marco Rubio cautioned that the bipartisan group of senators working on immigration reform legislation still has details to work out. Democrat Chuck Schumer said the group was on track.
Sen. Marco Rubio, R-Fla. on Capitol Hill in Washington on March 12. On Sunday, Rubio said the eight senators working on immigration reform legislation still had many details to work out, and cautioned against premature celebration.
Susan Walsh/AP/File
EnlargeEven with one of the largest hurdles to an immigration overhaul overcome, optimistic lawmakers on Sunday cautioned they had not finished work on a bill that would provide a path to citizenship for 11 million illegal immigrants.
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The AFL-CIO and the pro-business U.S. Chamber of Commerce reached a deal late Friday that would allow tens of thousands of low-skill workers into the country to fill jobs in construction, restaurants and hotels. Yet despite the unusual agreement between the two powerful lobbying groups, lawmakers from both parties conceded that the negotiations were not finished.
"With the agreement between business and labor, every major policy issue has been resolved," said Sen. Chuck Schumer, the New York Democrat who brokered the labor-business deal.
But it hasn't taken the form of a bill and the eight senators searching for a compromise haven't met about the potential breakthrough.
"We haven't signed off," said Sen. Lindsey Graham, R-S.C.
"There are a few details yet. But conceptually, we have an agreement between business and labor, between ourselves that has to be drafted," he added.
Yet just before lawmakers began appearing on Sunday shows, Sen.?Marco?Rubio?warned he was not ready to lend his name ? and political clout ? to such a deal without hashing out the details.
"Reports that the bipartisan group of eight senators have agreed on a legislative proposal are premature," said?Rubio, a Florida Republican who is among the lawmakers working on legislation.
Rubio, a Cuban-American who is weighing a presidential bid in 2016, is a leading figure inside his party. Lawmakers will be closely watching any deal for his approval and his skepticism about the process did little to encourage optimism.
Rubio, who is the group's emissary to conservatives, called the agreement "a starting point" but said 92 senators from 43 states haven't yet been involved in the process.
The detente between the nation's leading labor federation and the powerful business lobbying group still needs senators' approval, including a nod from Sen. John McCain, the Arizona Republican whose previous efforts came up short.
"I think we're on track. But as Sen.?Rubio?correctly says, we have said we will not come to final agreement till we look at all of the legislative language and he's correctly pointing out that that language hasn't been fully drafted," Schumer said.
Sen. Jeff Flake, R-Ariz., also noted the significance of the truce between labor and business but added that this wasn't yet complete.
"That doesn't mean we've crossed every 'i' or dotted every 't,' or vice versa," said Flake, who is among the eight lawmakers working on the deal.
Source: http://rss.csmonitor.com/~r/feeds/csm/~3/NQLoboKklXQ/Rubio-Immigration-deal-still-needs-hashing-out
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Thursday, March 28, 2013
Study: Ore. individual claims costs to rise
Mar 26 (Reuters) - Leading money winners on the 2013 PGATour on Monday (U.S. unless stated): 1. Tiger Woods $3,787,600 2. Brandt Snedeker $2,859,920 3. Matt Kuchar $2,154,500 4. Steve Stricker $1,820,000 5. Phil Mickelson $1,650,260 6. Hunter Mahan $1,553,965 7. John Merrick $1,343,514 8. Dustin Johnson $1,330,507 9. Russell Henley $1,313,280 10. Kevin Streelman $1,310,343 11. Keegan Bradley $1,274,593 12. Charles Howell III $1,256,373 13. Michael Thompson $1,254,669 14. Brian Gay $1,171,721 15. Justin Rose $1,155,550 16. Jason Day $1,115,565 17. Chris Kirk $1,097,053 18. ...
Source: http://news.yahoo.com/study-ore-individual-claims-costs-140038580.html
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Wednesday, March 27, 2013
PFT: Te'o reportedly won't be in NYC for draft
Getty ImagesThe 2011 labor agreement included an important provision:? HGH testing is coming to the NFL.? Nearly 20 months later, HGH testing is no closer than it was before the agreement was signed.
The latest evidence comes from the case of Andrus Veerpalu, an Estonian skier whose three-year suspension was overturned by the Court of Arbitration for Sport.? Naturally, the NFL and the NFLPA disagree as to the meaning of the ruling, and the incident has caused Albert Breer of NFL Network to learn that the two sides have scrapped an agreement to conduct a so-called ?population study? aimed at gauging the permissible natural levels of HGH in football players.
The details don?t matter, because neither the NFL nor Congress is willing to do anything more than huff and puff about the union?s refusal to honor the agreement to submit to HGH testing.? As a result, the perception is that neither the NFLPA nor the NFL truly want HGH testing.
Since the day the NFL banned the use of HGH, the prohibition has been enforced via the honor system.? The problem with the honor system? ? It works roughly as well as the rhythm method.? So with no way to test for HGH, players will get caught only if a vial of HGH falls out of their letterman jackets, or if the player?s name pops up in the records of an HGH supplier the government is prosecuting.
Surely, the NFL and the NFLPA realize that, if/when HGH testing begins, plenty of players will be caught.? Which will reduce the supply of healthy players.? In turn, players who quit using HGH will not recover as quickly from injuries, likewise reducing the supply of healthy players.
And it won?t be good for the game if players are busted for using HGH, even though most fans presume that they?re using something to get big, to stay big, and/or to rebound from big hits applied by other big men.
If the NFL truly wanted to force the issue on HGH testing, wouldn?t the league unleash the legal hounds and push the issue in court or via an arbitration?? The players already have agreed to submit to testing, and the NFL has more than enough ammunition to argue that the NFLPA deliberately is dragging its feet.? The idea that the NFL doesn?t want to force players to the needle by court order only goes so far.? At some point, the NFL needs to do more than complain about the NFLPA?s refusal to proceed, or the NFLPA will continue to refuse to proceed.
Likewise, Congress has proven to be impotent on the topic, periodically issuing hollow threats but never taking action.Through it all, the delay has given those who use HGH an opportunity to find better masking agents ? or to develop the next wave of substances that work like HGH but for which testing doesn?t yet exist.
The best news for the NFL, the NFLPA, and Congress is that neither the media nor the fans seem to care that the NFL and the NFLPA have struck a deal to abandon the honor system, but that the honor system has continued to be used for two seasons, and counting.
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Researchers attach Lyme disease antibodies to nanotubes, paving way for diagnostic device
Mar. 26, 2013 ? Early diagnosis is critical in treating Lyme disease. However, nearly one quarter of Lyme disease patients are initially misdiagnosed because currently available serological tests have poor sensitivity and specificity during the early stages of infection. Misdiagnosed patients may go untreated and thus progress to late-stage Lyme disease, where they face longer and more invasive treatments, as well as persistent symptoms.
Existing tests assess the presence of antibodies against bacterial proteins, which take weeks to form after the initial infection and persist after the infection is gone. Now, a nanotechnology-inspired technique developed by researchers at the University of Pennsylvania may lead to diagnostics that can detect the organism itself.
The study was led by professor A. T. Charlie Johnson of the Department of Physics and Astronomy in Penn's School of Arts and Sciences along with graduate student Mitchell Lerner, undergraduate researcher Jennifer Dailey and postdoctoral fellow Brett R. Goldsmith, all of Physics. They collaborated with Dustin Brisson, an assistant professor of biology who provided the team with expertise on the bacterium.
Their research was published in the journal Biosensors and Bioelectronics.
"When you're initially infected with the Lyme disease bacterium, you don't develop antibodies for many days to a few weeks," Johnson said. "Many people see their physician before antibodies develop, leading to negative serological test results. And after an initial infection, you're still going to have these antibodies, so using these serological diagnostics won't make it clear if you're still infected or not after you've been treated with antibiotics."
The research team's idea was to flip the process around, using laboratory-produced antibodies to detect the presence of proteins from the organism. This is an extension of previous work Johnson's lab has done connecting other biological structures, such as olfactory receptors and DNA, to carbon nanotube-based devices.
Carbon nanotubes, rolled-up lattices of carbon atoms, are highly conductive and sensitive to electrical charge, making them promising components of nanoscale electronic devices. By attaching different biological structures to the exteriors of the nanotubes, they can function as highly specific biosensors. When the attached structure binds to a molecule, that molecule's charge can affect the electrical conduction of the nanotube, which can be part of an electrical circuit like a wire. Such a device can therefore provide an electronic read-out of the presence, or even concentration, of a particular molecule.
To get the electrical signal out of these nanotubes, the team first turned them into transistor devices.
"We first grow these nanotubes on what amounts to a large chip using a vapor deposition method, then make electrical connections essentially at random," Johnson said. "We then break up the chip and test all of the individual nanotube transistors to see which work the best."
In their recent experiment, Johnson's team attached antibodies that naturally develop in most animals that are infected with the Lyme disease bacterium to these nanotube transistors. These antibodies naturally bind to an antigen, in this case, a protein in the Lyme bacterium, as part of the body's immune response.
"We have a chemical process that lets us connect any protein to carbon nanotubes. Nanotubes are very stable, so we have a very reactive compound that binds to the nanotube and also has a carboxylic acid group on the other end. For biochemists, getting any kind of protein to bind to a carboxylic acid group is just child's play at this point, and we have worked with them to learn how to perform this chemistry on the side wall of nanotubes. "
After using atomic-force microscopy to show that antibodies had indeed bound to the exteriors of their nanotube transistors, the researchers tested them electrically to get a baseline reading. They then put the nanotubes in solutions that contained different concentrations of the target Lyme bacteria protein.
"When we wash away the solution and test the nanotube transistors again, the change in what we measure tells us that how much of the antigen has bound," Johnson said. "And we see the relationship we expect to see, in that the more antigen there was in the solution, the bigger the change in the signal."
The smallest concentration the nanotube devices could detect was four nanograms of protein per milliliter of solution.
"This sensitivity is more than sufficient to detect the Lyme disease bacterium in the blood of recently-infected patients and may be sufficient to detect the bacterium in fluids of patients that have received inadequate treatment," Brisson said.
"We really want the protein we are looking to detect to bind as close to the nanotube as possible, as that is what increases the strength of the electrical signal," Johnson said. "Developing a smaller, minimal version of the antibody -- what we call a single chain variable fragment -- would be a next step.
"Based on our previous work with single chain variable fragments of other antibodies, this would probably make such a device about a thousand times more sensitive."
The researchers suggested that, given the flexibility of their technique for attaching different biological structure, eventual diagnostic tools could incorporate multiple antibodies, each detecting a different protein from the Lyme bacterium. Such a setup would improve accuracy and cut down on the possibility of false-positive diagnoses.
"If we were to do this type of test on a person's blood now, however, we would say the person has the disease," Johnson said. "The first thought is that if you detect any protein coming from the Lyme organism in your blood, you are infected and should get treatment right away."
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The above story is reprinted from materials provided by University of Pennsylvania.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- Mitchell B. Lerner, Jennifer Dailey, Brett R. Goldsmith, Dustin Brisson, A.T. Charlie Johnson. Detecting Lyme disease using antibody-functionalized single-walled carbon nanotube transistors. Biosensors and Bioelectronics, 2013; 45: 163 DOI: 10.1016/j.bios.2013.01.035
Note: If no author is given, the source is cited instead.
Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.
Source: http://feeds.sciencedaily.com/~r/sciencedaily/health_medicine/genes/~3/jKHfAQDeP-s/130326194140.htm
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Tuesday, March 26, 2013
Simpler Raises $1.2M From Andreessen Horowitz, Kleiner Perkins, Khosla To Make Employee Onboarding Paperless
Simpler, a new startup that wants to disrupt employee onboarding, is launching today and announcing $1.25 million in funding from Andreessen Horowitz, Kleiner Perkins, Khosla Ventures, SV Angel, Data Collective, and Formation8.Source: http://feedproxy.google.com/~r/Techcrunch/~3/5JT7IQ-AaZ8/
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Clean electricity from bacteria? Researchers make breakthrough in race to create 'bio-batteries'
Mar. 25, 2013 ? Scientists at the University of East Anglia have made an important breakthrough in the quest to generate clean electricity from bacteria.
Findings published today in the journal Proceedings of the National Academy of Sciences (PNAS) show that proteins on the surface of bacteria can produce an electric current by simply touching a mineral surface.
The research shows that it is possible for bacteria to lie directly on the surface of a metal or mineral and transfer electrical charge through their cell membranes. This means that it is possible to 'tether' bacteria directly to electrodes -- bringing scientists a step closer to creating efficient microbial fuel cells or 'bio-batteries'.
The team collaborated with researchers at Pacific Northwest National Laboratory in Washington State in the US.?
Shewanella oneidensis is part of a family of marine bacteria. The research team created a synthetic version of this bacteria using just the proteins thought to shuttle the electrons from the inside of the microbe to the rock.
They inserted these proteins into the lipid layers of vesicles, which are small capsules of lipid membranes such as the ones that make up a bacterial membrane. Then they tested how well electrons travelled between an electron donor on the inside and an iron-bearing mineral on the outside.
Lead researcher Dr Tom Clarke from UEA's school of Biological Sciences said: "We knew that bacteria can transfer electricity into metals and minerals, and that the interaction depends on special proteins on the surface of the bacteria. But it was not been clear whether these proteins do this directly or indirectly though an unknown mediator in the environment.
"Our research shows that these proteins can directly 'touch' the mineral surface and produce an electric current, meaning that is possible for the bacteria to lie on the surface of a metal or mineral and conduct electricity through their cell membranes.
"This is the first time that we have been able to actually look at how the components of a bacterial cell membrane are able to interact with different substances, and understand how differences in metal and mineral interactions can occur on the surface of a cell.
"These bacteria show great potential as microbial fuel cells, where electricity can be generated from the breakdown of domestic or agricultural waste products.
"Another possibility is to use these bacteria as miniature factories on the surface of an electrode, where chemicals reactions take place inside the cell using electrical power supplied by the electrode through these proteins."
Biochemist Liang Shi of Pacific Northwest National Laboratory said: "We developed a unique system so we could mimic electron transfer like it happens in cells. The electron transfer rate we measured was unbelievably fast -- it was fast enough to support bacterial respiration."
The finding is also important for understanding how carbon works its way through the atmosphere, land and oceans.
"When organic matter is involved in reducing iron, it releases carbon dioxide and water. And when iron is used as an energy source, bacteria incorporate carbon dioxide into food. If we understand electron transfer, we can learn how bacteria controls the carbon cycle," said Shi.
The project was funded by the Biotechnology and Biological Sciences Research Council (BBSRC) and the US Department of Energy.
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Story Source:
The above story is reprinted from materials provided by University of East Anglia.
Note: Materials may be edited for content and length. For further information, please contact the source cited above.
Journal Reference:
- Thomas A Clarke, Gaye White, Julea N Butt, David J Richardson, Zhri Shi, Liang Shi, Zheming Wang, Alice C Dohnalkova, Matthew J Marshall, James K Fredrickson and John M Zachara. Rapid electron exchange between surface-exposed bacterial cytochromes and Fe(III) minerals. Proceedings of the National Academy of Sciences, March 25, 2013
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Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.
Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/~3/C9b9oM-guKU/130325183900.htm
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