Wednesday, December 12, 2012

Tsunami caused long-term ecosystem change in the Caribbean

Tsunami caused long-term ecosystem change in the Caribbean [ Back to EurekAlert! ] Public release date: 12-Dec-2012
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Contact: Joan Robinson
joan.robinson@springer.com
49-622-148-78130
Springer

Overwash deposits point to major wave event more than 3,000 years ago

A detailed analysis of sediments from the island of Bonaire in the Caribbean presents convincing evidence for an extraordinary wave impact dating back some 3,300 years, even though no historical records of tsunamis exist for this island. Of particular interest are the consequences this large wave impact had on the island's ecosystem. The sediments studied by the scientists suggested that this tsunami entirely changed the coastal ecosystem and sedimentation patterns in the area. The work by Dr. Max Engel and colleagues, from the University of Kln in Germany, is published online in Springer's journal, Naturwissenschaften The Science of Nature.

The Caribbean region is highly vulnerable to coastal hazards, including tropical cyclones, earthquakes, volcanoes, and tsunamis. Even though the island of Bonaire has not experienced a tsunami during the past 500 years, which is the period of historical documentation, overwash deposits from a coastal lagoon provide evidence for at least one such event in prehistory.

Engel and colleagues investigated sediment cores from Washington-Slagbaai National Park. They looked specifically at grain size distribution, carbonate content, organic matter, magnetic susceptibility and fauna. Their analyses showed that the sediments had criteria typically linked with tsunami deposits, consistent with a tsunami with a maximum age of 3,300 years.

The authors conclude: "This single catastrophic event is of long-term ecological significance. Formation of a barrier of coral rubble was triggered by the tsunami separating a former inland bay from the open sea and turning it into a highly saline lagoon which persists until today. Further studies of the geology of tsunamis, using well-dated deposits, are required over the entire Caribbean to reconstruct reliable patterns of magnitude, frequency and spatial occurrence of tsunami events and their environmental impact."

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Reference

Engel M et al (2012). A prehistoric tsunami induced long-lasting ecosystem changes on a semi-arid tropical island - the case of Boka Bartol (Bonaire, Leeward Antilles). Naturwissenschaften The Science of Nature; DOI 10.1007/s00114-012-0993-2

The full-text article is available to journalists on request.


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Tsunami caused long-term ecosystem change in the Caribbean [ Back to EurekAlert! ] Public release date: 12-Dec-2012
[ | E-mail | Share Share ]

Contact: Joan Robinson
joan.robinson@springer.com
49-622-148-78130
Springer

Overwash deposits point to major wave event more than 3,000 years ago

A detailed analysis of sediments from the island of Bonaire in the Caribbean presents convincing evidence for an extraordinary wave impact dating back some 3,300 years, even though no historical records of tsunamis exist for this island. Of particular interest are the consequences this large wave impact had on the island's ecosystem. The sediments studied by the scientists suggested that this tsunami entirely changed the coastal ecosystem and sedimentation patterns in the area. The work by Dr. Max Engel and colleagues, from the University of Kln in Germany, is published online in Springer's journal, Naturwissenschaften The Science of Nature.

The Caribbean region is highly vulnerable to coastal hazards, including tropical cyclones, earthquakes, volcanoes, and tsunamis. Even though the island of Bonaire has not experienced a tsunami during the past 500 years, which is the period of historical documentation, overwash deposits from a coastal lagoon provide evidence for at least one such event in prehistory.

Engel and colleagues investigated sediment cores from Washington-Slagbaai National Park. They looked specifically at grain size distribution, carbonate content, organic matter, magnetic susceptibility and fauna. Their analyses showed that the sediments had criteria typically linked with tsunami deposits, consistent with a tsunami with a maximum age of 3,300 years.

The authors conclude: "This single catastrophic event is of long-term ecological significance. Formation of a barrier of coral rubble was triggered by the tsunami separating a former inland bay from the open sea and turning it into a highly saline lagoon which persists until today. Further studies of the geology of tsunamis, using well-dated deposits, are required over the entire Caribbean to reconstruct reliable patterns of magnitude, frequency and spatial occurrence of tsunami events and their environmental impact."

###

Reference

Engel M et al (2012). A prehistoric tsunami induced long-lasting ecosystem changes on a semi-arid tropical island - the case of Boka Bartol (Bonaire, Leeward Antilles). Naturwissenschaften The Science of Nature; DOI 10.1007/s00114-012-0993-2

The full-text article is available to journalists on request.


[ 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.


Source: http://www.eurekalert.org/pub_releases/2012-12/s-tcl121212.php

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Chris Weigant: If We're Going to Tax the Rich, Then Let's Tax the Rich

Due to the political courageousness of President Obama (there is simply no other way to put it), the folks inside the Beltway are finally having a serious discussion about taxing the rich. Obama is not only strongly fighting for higher tax rates on the higher-income earners, but he was the one who put the subject front and center in the election season -- when he could easily have punted it to a non-election year.

But the "tax the rich" policies so far being discussed (at least the ones that leak out to the public) are laughably timid and tame, when you really examine the big picture. So far, what is making Republicans howl is President Obama's plan to end the Bush tax cuts on the top two marginal income tax rates, which would raise them from 33 percent to 36 percent, and from 35 to 39.6 percent. Seen one way, that's impressive, since tax rates haven't gone up in such a fashion since President Clinton's first year in office. But seen another, it's not all that radical at all.

Consider the fact that nothing Obama is doing is going to "fix" the problem of Warren Buffett paying a lower tax rate than his secretary -- a problem Obama has repeatedly said he'd like to tackle. On "entitlements reform," only a few lonely voices crying in the wilderness are suggesting ending the most regressive federal tax around, by scrapping the cap on income for Social Security payroll taxes. Also seemingly forgotten in this debate is the proposal for a "millionaires' tax" or a "transactions tax." The real measure of whether Democrats and Republicans are both selling smoke and mirrors is whether they permanently fix the Alternative Minimum Tax -- again, a subject which has barely been mentioned.

If we're really going to get serious about taxing the rich, why not... well... tax the rich? Chances for changing the tax code for upper-income folks don't come around all that often (it's been 20 years since the last one, remember), so why not push not only for higher rates, but to fix some of the most glaring ways our tax code favors those with monstrous incomes. Let's take a look at a few of these ideas, one by one.

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Scrap the Cap

This one is pathetically easy to understand, and pathetically easy to fix. Many Americans aren't even aware of how the lower 90 percent of paycheck-earning Americans pay higher taxes than the upper ranks.

Social Security taxes are supposed to be a "flat tax" -- everyone pays the same rate. It's so simple that Social Security taxes ("FICA," on your paystub) don't even appear on a normal person's income tax form. It's a straight 6.2 percent of your income that gets taken out, every single paycheck. Except for the wealthiest, of course -- they pay less.

Because only (currently) the first $110,100 you make in income is taxed. Every dollar you earn up to this limit is taxed at a flat 6.2 percent rate. Every dollar you make over this limit is taxed at a zero percent rate. Meaning most Americans don't make it over the cap, and thus pay a full 6.2 percent on their entire income.

[Technical notes: Right now we are in the midst of a temporary "payroll tax holiday" and only 4.2 percent is being taken out of your paycheck -- but this is going to end at some point, and the tax will go back up to the baseline of 6.2 percent. Also, your employer matches this percentage, but self-employed people pay the full 12.4 percent. Neither of these facts are reflected in the charts below, which have been simplified for clarity.]

Here is a chart showing what percentage in Social Security taxes people with modest incomes actually pay, from $10,000 to $150,000 income:

Social Security Tax By Income

Everyone pays the same 6.2 percent up until that $110,100 limit. From this point on, the percentage drops because once the cap is hit, you're done paying the tax for the year. Someone making $150,000 a year pays only 4.6 percent, as a result. Now let's look at a higher income range -- one which begins to show the massive tax break higher income folks get:

Social Security Tax By Income

This shows income up to a million dollars a year. The tax rate steeply falls until about $250,000 a year (who pay 2.7 percent), and then falls off more slowly as incomes rise. When you hit $750,000, you are paying less than one percent a year in Social Security taxes. By the time it hits a million bucks a year, it's down to 0.7 percent. Which brings us to the real top earners:

Social Security Tax By Income

At $5 million a year in income, the tax falls to one-tenth of 1 percent. A firefighter pays 6.2 percent, but if you clear $5 million you pay 0.1 percent. At $75 million a year in income, the figure falls below one one-hundredth of 1 percent -- only 0.009 percent.

Want to "save" Social Security? Scrap the cap. Make everyone pay the same flat percentage rate. Flat taxes are bad enough, but regressive taxes -- defined as "those who have more pay less" -- should be an outrage. Scrap the cap. Social Security could be saved for decades by this one simple step. Make every one of those charts a flat line.

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Solve the Buffett Problem

Warren Buffett, as everyone should know by now, pays a lower income tax rate than his secretary, despite the fact that Buffett makes one whale of a lot more income than his secretary does. This, despite the supposed-progressive nature of the income tax system. The reason is the biggest loophole of them all. This mother of all loopholes? Treating income rich people make differently than income normal people make. You see, the way Mitt Romney makes most of his money is taxed at a much lower rate than the way a nurse or teacher makes money. Which is why Romney is able to pay less than 14 percent income tax on an income of $20 million. Astonishingly, if the Paul Ryan budget had been made law, Romney would have paid less than one percent on the same $20 million income. I speak, of course, of "capital gains" (and "dividends" as well, but I'm just going to lump them all together for the sake of conversation).

Of all the thousands of ways an individual can make money (or "create an income"), only one is taxed at less than half the rate of the others. It happens to be "making money on Wall Street and the stock market." What a surprise! The method the already-wealthy use to increase their wealth is treated separately by the tax code. It is taxed less than half of what you earn in a paycheck. This is the "Buffett problem."

The solution to this problem is easy, too. Tax all income the same. Equality of taxation! It doesn't matter how you make that dollar, the government should tax it exactly the same -- anything else is simply not fair. In fact, this should be made progressive, too -- which will instantly neutralize all the howling from the anti-taxers about how this will hurt the middle class.

Make all income made through capital gains up to $250,000 each and every year tax-free. No capital gains taxes whatsoever on any money made up to the $250,000 limit -- you can just write off all profits up to that point on your yearly tax form. Then every dollar made above that limit is treated as income. Period. And taxed at the same rate as every other type of income.

This removes the argument that there are small investors who would be harmed. Very few Americans' retirement plans make $250,000 in income each and every year. In fact, it would be a massive tax break for small investors, which would have a positive impact.

But for the Buffetts and the Romneys of the world, they'd be paying the same (or greater) tax rate as their secretaries. And they, too, get to write off a whopping quarter-million of it each and every year, as an incentive. Problem solved.

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Tax Wall Street Speculators

Institute a transactions tax of 0.25 percent on all Wall Street transactions over a certain limit per year. Make all the stock trades you want up to, perhaps, $250,000 per year tax-free. But then on trades over this amount, charge a fraction of one percent as a "speculation tax." This idea isn't original (actually, none of these ideas is original), I should mention. Raise money for the Treasury by putting a very gentle brake on the stock market, to the tune of 25 cents on every $100 traded. Wall Street bears a large portion of responsibility for our fiscal problems, so it's time to make them contribute toward fixing them.

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Cap deductions

Right now this is the favorite solution of the Republicans (of course, they want this solution and none of the others, to be clear). Cap what rich people can deduct on their income taxes. The figure I've heard tossed around, however, is way too low. Capping deductions at $50,000 would snare a lot of folks making under $250,000 per year, I would be willing to bet. So raise the limit enormously, but make it a hard cap.

Let upper-income folks have a full quarter-million in deductions each year. They can write off up to $250,000, no matter how they're deducting it and no matter how much their total income (this would be separate from the $250,000 capital gains break described above, I should mention). But that's it. This change could be accomplished by changing a few words on the last box on Schedule A to read "if this amount is over $250,000, then just enter $250,000." That's all it would take. No more writing millions of dollars off each year, sorry. Again, by setting the limit extremely high, this would not ensnare anyone in the middle class at all.

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Add Two Tax Brackets

This one's pretty easy, too. One of the things Republicans (stretching back to Ronald Reagan) have been successful at over the years is not just lowering tax rates, but reducing the number of tax brackets that exist. Most of this reduction has happened at the upper end of the scale (which should come as no surprise).

This one is easy to fix, and key Democrats such as Sen. Charles Schumer have been pushing the idea for a while now. Create a millionaires' tax bracket. In fact, I'd go further and create a bracket at $1 million in income, and another one at $10 million in income. This removes the squabbling about the "middle class" versus "the truly wealthy" as anyone pulling down a cool million a year simply cannot be classified as "middle class" by anyone (at least not with a straight face). We had multiple tax brackets for a reason in the past -- to tax the stratosphere of the income levels. Let's get back to this way of targeting the upper ranks once again.

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The AMT Big Lie

I've offered up all of these ideas today to show how timid the proposals currently being discussed truly are. I would bet that none of the problems above will even be addressed in the fiscal cliff negotiations, and I don't expect them to be addressed at any time in the next year, either.

There's a quick and easy way to show how the politicians in Washington -- from both sides of the aisle, mind you -- are simply playing games when they talk about any "long-term solutions" to the tax code. They are, indeed, not going to institute a fix on any sort of permanent basis, mostly because then they'd have to tell a certain uncomfortable truth about the budget projections. Which they're just not going to do -- from either side of the political divide.

Here's the test: will the Alternative Minimum Tax be fixed for more than one year in any "deal" which emerges? The answer to that will be: "No. No, there will not be a permanent fix to the AMT."

Which is how you will know that both sides are simply lying about what the budget will look like in the next ten years. Flat-out lying. Both sides.

The Alternative Minimum Tax was created to solve exactly the same problem they're trying to solve now -- making the wealthy pay their fair share. It was created to rein in abuse of deductions and loopholes. It was created to make sure the wealthiest paid at least a minimum of taxes (it's right there, in the label). It is, in short, the perfect solution to the problems they're now trying to hash out.

Instead of upping rates, instead of fixing loopholes or deductions, the politicians could instead just fix the AMT and return it to its original purpose of snaring ultra-wealthy folks who are trying to lower their tax liability on each year's tax form.

The problem with the AMT is that the limit was set so long ago that it is laughably low today (Nixon signed the original AMT into law). But the politicians in Washington play a game with it, each and every year, like clockwork. The game is called "let's pretend it's going to exist for nine years out of ten, because it makes the budget projections look so much better." When figuring a ten-year budget, the next year will show an "AMT fix" where the AMT limit is raised to where it should be, to only apply to the very wealthy. But the nine years after that will show the AMT levels at the old rate, because such smoke and mirrors means nine years of "tax revenue" which is simply never going to appear gets added into the mix. With nine years of such falsehood, to put this another way, it makes it much easier to project smaller budget deficits.

Each year, Congress "fixes" the AMT, right before the end of December. Each year, they only fix it for a single year. Nobody wants to be the one who points out the lack of clothing on the Emperor, because then the other side will accuse them of wanting to "explode the deficit."

So while there is indeed a vehicle for taxing the rich in a way which lays down clear rules and clear targets -- a way which has existed since 1970 -- it will not be used in the fiscal cliff deal. A permanent fix will not even be discussed, I would wager.

If President Obama really wanted to clearly and permanently change the tax structure for the wealthiest Americans, he would be out there pushing for all of his ideas to be wrapped into the one package of a permanent AMT fix. Instead, this will be treated as an afterthought in the whole debate -- it'll barely rate a footnote in the stories which appear about any impending deal. Perhaps in the fifteenth paragraph of an in-depth newspaper story will be the line "...and they've also agreed to the standard one-year fix for the AMT."

If you want to tax the rich -- if you really want to address the problems in our tax code that outrageously favor the wealthiest among us -- there are multiple ways to do so. I understand why Obama has drawn a political line in the sand over raising rates on the top 2 percent of earners. But it has focused the debate only on this one part of an overall solution. There are plenty of other ways to make the tax code more fair, more balanced, and more evenhanded for the middle class.

My guess is none of them will happen soon. Perhaps Obama will claim victory and get rates raised to 39.6 percent, or perhaps John Boehner will talk him down to 37 percent. But because the media and all the politicians have focused on this one battle royale, my guess is that virtually no attention will be paid to any of the other fine ideas out there to tax the rich. Which is a shame. Because these opportunities seem to come along only once in a generation.

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Chris Weigant blogs at:
ChrisWeigant.com

Follow Chris on Twitter: @ChrisWeigant
Become a fan of Chris on The Huffington Post

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Follow Chris Weigant on Twitter: www.twitter.com/ChrisWeigant

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Source: http://www.huffingtonpost.com/chris-weigant/if-were-going-to-tax-the-_b_2273852.html

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Tuesday, December 11, 2012

Secrets of gentle touch revealed

Monday, December 10, 2012

Stroke the soft body of a newborn fruit fly larva ever-so-gently with a freshly plucked eyelash, and it will respond to the tickle by altering its movement?an observation that has helped scientists at the University of California, San Francisco (UCSF) uncover the molecular basis of gentle touch, one of the most fundamental but least well understood of our senses.

Our ability to sense gentle touch is known to develop early and to remain ever-present in our lives, from the first loving caresses our mothers lavish on us as newborns to the fading tingle we feel as our lives slip away. But until now, scientists have not known exactly how humans and other organisms perceive such sensations.

In an article published online this week in the journal Nature, the UCSF team has identified the exact subset of nerve cells responsible for communicating gentle touch to the brains of Drosophila larvae?called class III neurons. They also uncovered a particular protein called NOMPC, which is found abundantly at the spiky ends of the nerves and appears to be critical for sensing gentle touch in flies.

Without this key molecule, the team discovered, flies are insensitive to any amount of eyelash stroking, and if NOMPC is inserted into neurons that cannot sense gentle touch, those neurons gain the ability to do so.

"NOMPC is sufficient to confer sensitivity to gentle touch," said Yuh Nung Jan, PhD, a professor of physiology, biochemistry and biophysics and a Howard Hughes Medical Institute investigator at UCSF. Jan led the study with his wife Lily Jan, PhD, who is also a UCSF professor and a Howard Hughes Medical Institute investigator.

The work sheds light on a poorly understood yet fundamental sense through which humans experience the world and derive pleasure and comfort.

Jan added that while the new work reveals much, many unanswered questions remain, including the exact mechanism through which NOMPC detects mechanical force and the identity of the analogous human molecules that confer gentle touch sensitivity in people.

The discovery is a good example of basic brain research paving the way toward answering such questions. UCSF is a world leader in the neurosciences, carrying out research that spans the spectrum from fundamental questions of how the brain works to the clinical development of new drugs and precision tools to address brain diseases; educating the next generation of neuroscientists, neurologists and neurosurgeons; and offering excellent patient care for neurological diseases.

Why is Touch Still Such a Mystery?

Though it is fundamental to our experience of the world, our sense of gentle touch has been the least well understood of our senses scientifically, because, unlike with vision or taste, scientists have not known the identity of the molecules that mediate it.

Scientists generally feel that, like those other senses, the sense of touch is governed by peripheral nerve fibers stretching from the spine to nerve endings all over the body. Special molecules in these nerve endings detect the mechanical movement of the skin surrounding them when it is touched, and they respond by opening and allowing ions to rush in. The nerve cell registers this response, and if the signal is strong enough, it will fire, signaling the gentle touch to the brain.

What has been missing from the picture, however, are the details of this process. The new finding is a milestone in that it defines the exact nerves and uncovers the identity of the NOMPC channel, one of the major molecular players involved?at least in flies.

Jan and his colleagues made this discovery through an unusual route. They were looking at the basic physiology of the developing fruit fly, examining how class III neurons develop in larvae. They noticed that when these cells developed in the insects, their nerve endings would always become branches into spiky "dendrites."

Wanting to know what these neurons are responsible for, they examined them closely and found the protein NOMPC was abundant at the spiky ends. They then examined a fly genetically engineered to have a non-functioning form of NOMPC and showed that it was insensitive to gentle touch. They also showed that they could induce touch sensitivity in neurons that do not normally respond to gentle touch by inserting copies of the NOMPC protein into them.

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University of California - San Francisco: http://www.ucsf.edu

Thanks to University of California - San Francisco 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/125829/Secrets_of_gentle_touch_revealed

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Best of both worlds: Hybrid approach sheds light on crystal structure solution

Dec. 11, 2012 ? Understanding the arrangement of atoms in a solid -- one of solids' fundamental properties -- is vital to advanced materials research. For decades, two camps of researchers have been working to develop methods to understand these so-called crystal structures. "Solution" methods, championed by experimental researchers, draw on data from diffraction experiments, while "prediction" methods of computational materials scientists bypass experimental data altogether.

While progress has been made, computational scientists still cannot make crystal structure predictions routinely. Now, drawing on both prediction and solution methods, Northwestern University researchers have developed a new code to solve crystal structures automatically and in cases where traditional experimental methods struggle.

Key to the research was integrating evidence about solids' symmetry -- the symmetrical arrangement of atoms within the crystal structure -- into a promising computational model.

"We took the best of both worlds," said Chris Wolverton, professor of materials science and engineering at Northwestern's McCormick School of Engineering and expert in computational materials science. "Computational materials scientists had developed a great optimization algorithm, but it failed to take into account some important facts gathered by experimentalists. By simply integrating that information into the algorithm, we can have a much fuller understanding of crystal structures."

The resulting algorithm could allow researchers to understand the structures of new compounds for applications ranging from hydrogen storage to lithium-ion batteries.

A paper describing the research was published November 25 in the journal Nature Materials.

While both computational and experimental researchers have made strides in determining the crystal structure of materials, their efforts have some limitations. Diffraction experiments are labor-intensive and have high potential for human error, while most existing computational approaches neglect potentially valuable experimental input.

When computational and experimental research is combined, however, those limitations can be overcome, the researchers found.

In their research, the Northwestern authors seized onto an important fact: that while the precise atomic arrangements for a given solid may be unknown, experiments have revealed the symmetries present in tens of thousands of known compounds. This database of information is useful in solving the structures of new compounds.

The researchers were able to revise a useful model -- known as the genetic algorithm, which mimics the process of biological evolution -- to take those data into account.

In the paper, the researchers used this technique to analyze the atomic structure of four technologically relevant solids whose crystal structure has been debated by scholars -- magnesium imide, ammonia borane, lithium peroxide, and high-pressure silane -- and demonstrated how their method would solve their atomic structures.

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

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


Journal Reference:

  1. Bryce Meredig, C. Wolverton. A hybrid computational?experimental approach for automated crystal structure solution. Nature Materials, 2012; DOI: 10.1038/nmat3490

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

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

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/~3/BAuwIuHfjQY/121211130316.htm

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Mechanical And Electrical Safety Considerations In ... - Audio Video

It is typical that people that are motivated to get a home-improvement project done and are not focused on their own safety. If you have been hurt, consider yourself blessed if you are not actually killed, while working on a home project. Most people that get hurt do so by climbing up on a ladder and falling off of it. Roof repair work, such as laying down shingles, is very dangerous even on a low pitch roof. If you must climb up a ladder to do a repair, safety precautions must be taken or you may fall. A ladder must be situated appropriately and secured before ever using it. Follow these easy tips and you will be safer than ever when getting things done at home.

A lot of people don?t give much thought to the tools they keep around for handling household projects, but they can be the most important items you have when you have a task to complete. Here?s another tip that will save you time and aggravation in the future. Buy the best quality tools you can afford Another reason to have quality tools is to avoid tool breakage. This can lead to injuries and inconvenience because you cannot proceed until you replace the broken tool. Moisture can be one of the biggest headaches in caring for your tools. Make sure you take good care of them. If you let your tools stay dirty or damp, they can rust or just get mucked up with greasy dirt. Depending on the tool, it is helpful to keep a light coating of thin viscosity oil on them. If you keep an ?oil rag? handy in your tool box, you can wipe any oil residue off before you begin.

The above really only just starts to scratch the surface of what is available concerning home improvement. However, one really important distinction here directly relates to your own goals. There are probably more than a few specifics you have to pay close attention to on your part. No matter what, your careful attention to the matter at hand is something you and all of us have to do. We will now move ahead and talk more about a few points in depth.

If your project involves hammering a nail into something, then here is a nice little piece of advice. This is especially useful for people who are inexperienced with hammers. Buy or construct something you can use to hold the nail when hammering it. You can easily make a nail holder from something simple like a paperclip. You can also use a comb, after breaking off one or two teeth, to hold nails. It?s difficult to understand the pain if you have never hammered a finger.

Going back to the topic of ladders, you must always use safety and common sense. Using someone at the base of the ladder to hold it steady is a great safety precaution. Your helper should do their best you and the ladder from falling. A common safety issue is tipping the ladder when reaching for something. You have to think in terms of center of gravity at all times. Take the time to setup up the ladder and reposition it to make sure it is secure. Each place that you work is distinct so keep that in mind. If you will be near a door, then put a sign on the other side so people will know you are there.

People may get injured more times than not by taking shortcuts and doing what they are not supposed to. This is a universal attitude and reason often cited so often in accident root cause analysis.

Check out these informational resources who writes on various roofing related matters such as roofing insurance, Link and Look At This Web-Site.

Source: http://audiovideo.au.pn/2012/12/10/mechanical-and-electrical-safety-considerations-in-residence-improvement/

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Monday, December 10, 2012

NBC Sports partners with Yahoo for content deal

NEW YORK (AP) ? NBC Sports and Yahoo are taking on the crowded sports media landscape with a partnership that fills in gaps for both companies.

NBC brings video and big-name broadcasters and Yahoo adds college coverage and fantasy games in the agreement announced Sunday. They hope their strengths will complement each other and attract more eyes to both as they vie with ESPN and other outlets for multimedia sports supremacy.

"It's just a natural fit," said Rick Cordella, senior vice president and general manager for digital media with NBC Sports Group.

Yahoo Sports and the NBC Sports Group will maintain separate websites and newsrooms, but will work together on news and events coverage online and on the air.

Yahoo has looked to expand its reach in the last couple of years with partnerships with TV networks. The company had done smaller deals with NBC Sports in the past, and in June it combined with another NBCUniversal property ? CNBC ? for financial news. Yahoo also has an agreement with ABC News, but Cordella didn't expect any significant conflicts when the worlds of news and sports collide as they frequently do.

For Yahoo, the deal gives the website a major boost in its ability to offer video, especially live sports. It will link to the NBC Sports Live Extra video player, where fans can watch live streams of the network's NFL game on Sunday night and the NHL game of the week, when the league resolves its labor dispute. Yahoo and NBC also will develop online video programs that will appear on both websites and include notable names from NBC's lineup such as announcer Bob Costas and former NFL coach Tony Dungy.

"There's a lot of yin and yang to it," Cordella said of how the two companies' fortes will mesh together.

For NBC, the agreement greatly expands its college and recruiting coverage for NBCSports.com and the NBC Sports Regional Networks through Yahoo's Rivals.com. Yahoo Sports also has drawn attention for its coverage of a handful of recent college sports scandals.

"We had a hole there," Cordella said. "We didn't necessarily cover colleges as well as Yahoo and some of our other peers."

And the deal can help drive Yahoo Sports' massive audience to NBCSports.com, a relative newcomer to the online sports arena.

The agreement also combines the fantasy news of NBC Sports' Rotoworld with Yahoo's extensive offerings of fantasy sports games.

"We think our users will love the result," said Ken Fuchs, vice president of Yahoo Global Media and head of Yahoo Sports and Games.

The deal for now does not include the Olympics, for which the two websites had competed for eyeballs in the past. Cordella said that as the two sides evaluate the success of this initial agreement, they might later add a partnership for other areas such as the Olympics and radio.

Yahoo stock has been languishing for years, but lately has been rising. Investors are betting its new CEO, Marissa Mayer, can engineer a turnaround. Mayer, a former Google executive hired in July, has vowed to fix up the Sunnyvale, Calif.-based company by improving online services and rolling out more products tailored for smartphones and tablet computers. Mayer is the fifth CEO of Yahoo in five years.

The company is one of the Internet's top destinations but it's been losing out to rivals like search leader Google and the social network Facebook Inc. in the competition for advertisers.

The company has made a handful of small deals under Mayer's leadership, mainly to acquire personnel from small tech companies. Yahoo has also been buying back more of its own stock since she took the helm.

NBC is owned by Comcast Corp., the nation's largest provider of cable TV and Internet services.

___

Jay Cohen reported on this story from Chicago.

Source: http://news.yahoo.com/nbc-sports-partners-yahoo-content-deal-010239604--finance.html

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Secret military space plane set to launch

The secretive U.S. Air Force X-37B robotic space plane has been cleared to lift off Tuesday.

The X-37B vehicle and its cargo bay packed with a classified payload is set to make the third mission of the program. Also called Orbital Test Vehicle-3, or OTV-3, the unpiloted craft is slated to be hurled into Earth orbit by an Atlas 5 rocket from Florida's Cape Canaveral Air Force Station (CCAFS) at 1:03 p.m. EST.

There's an interesting angle to the upcoming mission. This third flight will use the same X-37B spacecraft that flew the first test flight, the OTV-1 mission, in 2010.

That maiden voyage of the miniature space plane lasted a little over 224 days, orbiting Earth from April 22, 2010 to Dec. 3 of that year, and finally landing on autopilot at a specially prepared runway at Vandenberg Air Force Base in California. [ Photos: U.S. Military's X-37B Space Plane ]

A different X-37B vehicle made a similar Vandenberg touchdown this past June 16, after staying in orbit 469 days on its OTV-2 mission.

Accident investigation
The OTV-3 flight had been delayed for several months due to an accident investigation board looking into why a Delta 4 rocket's RL-10B-2 upper stage engine did not perform as expected on Oct. 4 during a launch that successfully orbited a Global Positioning System 2F-3 satellite.

The Atlas 5 that will hurl the OTV-3 into Earth orbit uses a different model of the Pratt & Whitney Rocketdyne RL-10 engine. However, per standard processes, the Air Force reviews all flight data to determine readiness to press forward with the next liftoff.

According to launch service provider United Launch Alliance (ULA), which makes the Atlas 5 and Delta 4, a thorough flight clearance process was executed and all "credible crossover implications" from the Delta anomaly to the OTV-3 Atlas vehicle and engine system have been thoroughly addressed and mitigated. That work culminated in the flight clearance decision for the OTV-3 launch. The investigation into the Delta rocket flight data anomaly continues.

Flight clearance
The accident investigation board concluded that a fuel leak occurred in a specific area of the interior of the thrust chamber, and that this leak started during the first engine start sequence during the October launch.

The anomaly investigation involves senior industry technical advisers, along with Air Force and NASA customers, explained Jim Sponnick, ULA vice president of mission operations, on the ULA website.

"We thank the OTV customer for their patience and participation throughout the flight clearance process for this important mission," Sponnick said.

ULA is a 50-50 joint venture owned by Lockheed Martin and The Boeing Co.

Space test platform
The X-37B program is being run by the U.S. Air Force Rapid Capabilities Office. The two space planes in the fleet ? which are 29 feet (8.8 meters) long and 15 feet (4.5 m) wide, with a payload bay about the size of a pickup truck bed ? were built by Boeing Government Space Systems.

The Air Force's Rapid Capabilities Office has a mission of expediting the development and fielding of select Department of Defense combat support and weapon systems by leveraging defense-wide technology development efforts and existing operational capabilities.

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According to an Air Force fact sheet, the Rapid Capabilities Office is working on the X-37B Orbital Test Vehicle "to demonstrate a reliable, reusable, unmanned space test platform for the United States Air Force."

While both previous X-37B missions touched down at Vandenberg, the Air Force has been reviewing the prospect of landing future flights at NASA's Kennedy Space Center in Florida, next door to the Cape Canaveral launch site. Returning the robotic space plane to the KSC landing strip ? which was used by NASA's now-retired space shuttle fleet ? would lower costs, because the vehicle wouldn't have to be transported back from California to Florida after each mission.

Leonard David has been reporting on the space industry for more than five decades. He is a winner of last year's National Space Club Press Award and a past editor-in-chief of the National Space Society's Ad Astra and Space World magazines. He has written for Space.com since 1999.

? 2012 Space.com. All rights reserved. More from Space.com.

Source: http://www.msnbc.msn.com/id/50146500/ns/technology_and_science-space/

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