Thursday, 31 January 2013

Squishy Science: Extract DNA from Smashed Strawberries

Bring Science Home

A genetically geared activity from Science Buddies

strawberry with DNA, strawberry, DNA Image: George Resteck

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Key concepts
DNA
Genome
Genes
Extraction
Laboratory techniques

Introduction
Have you ever wondered how scientists extract DNA from an organism? All living organisms have DNA, which is short for deoxyribonucleic acid; it is basically the blueprint for everything that happens inside an organism?s cells. Overall, DNA tells an organism how to develop and function, and is so important that this complex compound is found in virtually every one of its cells. In this activity you?ll make your own DNA extraction kit from household chemicals and use it to separate DNA from strawberries.?
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Background
Whether you?re a human, rat, tomato or bacterium, each of your cells will have DNA inside of it (with some rare exceptions, such as mature red blood cells in humans). Each cell has an entire copy of the same set of instructions, and this set is called the genome. Scientists study DNA for many reasons: They can figure out how the instructions stored in DNA help your body to function properly. They can use DNA to make new medicines or genetically modify crops to be resistant to insects. They can solve who is a suspect of a crime, and can even use ancient DNA to reconstruct evolutionary histories!

To get the DNA from a cell, scientists typically rely on one of many DNA extraction kits available from biotechnology companies. During a DNA extraction, a detergent will cause the cell to pop open, or lyse, so that the DNA is released into solution. Then alcohol added to the solution causes the DNA to precipitate out. In this activity, strawberries will be used because each strawberry cell has eight copies of the genome, giving them a lot of DNA per cell. (Most organisms only have one genome copy per cell.)

Materials

  • Rubbing alcohol
  • Measuring cup
  • Measuring spoons
  • Salt
  • Water
  • Dishwashing liquid (for hand-washing dishes)
  • Glass or small bowl
  • Cheesecloth
  • Funnel
  • Tall drinking glass
  • Three strawberries
  • Resealable plastic sandwich bag
  • Small glass jar (such as a spice or baby food jar)
  • Bamboo skewer, available at most grocery stores. (If you use a baby food or short spice jar, you could substitute a toothpick for the skewer.)

Preparation

  • Chill the rubbing alcohol in the freezer. (You?ll need it later.)
  • Mix one half teaspoon of salt, one third cup of water and one tablespoon of dishwashing liquid in a glass or small bowl. Set the mixture aside. This is your extraction liquid. Why do you think there is detergent in the extraction liquid?
  • Completely line the funnel with cheesecloth. Insert the funnel tube into the tall drinking glass (not the glass with the extraction liquid in it).
  • Remove and discard the green tops from the strawberries.

Procedure

  • Put the strawberries into a resealable plastic sandwich bag and push out all of the extra air. Seal the bag tightly.
  • With your fingers, squeeze and smash the strawberries for two minutes. How do the smashed strawberries look?
  • Add three tablespoons of the extraction liquid you prepared to the strawberries in the bag. Push out all of the extra air and reseal the bag. How do you think the detergent and salt will affect the strawberry cells?
  • Squeeze the strawberry mixture with your fingers for one minute. How do the smashed strawberries look now?
  • Pour the strawberry mixture from the bag into the funnel. Let it drip through the cheesecloth and into the tall glass until there is very little liquid left in the funnel (only wet pulp remains). How does the filtered strawberry liquid look?
  • Pour the filtered strawberry liquid from the tall glass into the small glass jar so that the jar is one quarter full.
  • Measure out one half cup of cold rubbing alcohol.
  • Tilt the jar and very slowly pour the alcohol down its side. Pour until the alcohol has formed approximately a one-inch-deep layer on top of the strawberry liquid. You may not need all of the one half cup of alcohol to form the one-inch layer. Do not let the strawberry liquid and alcohol mix.
  • Study the mixture inside of the jar. The strawberry DNA will appear as gooey clear/white stringy stuff. Do you see anything in the jar that might be strawberry DNA? If so, where in the jar is it?
  • Dip the bamboo skewer into the jar where the strawberry liquid and alcohol layers meet and then pull up the skewer. Did you see anything stick to the skewer that might be DNA? Can you spool any DNA onto the skewer????
  • Extra: You can try using this DNA extraction activity on lots of other things. Grab some oatmeal or kiwis from the kitchen and try it again! Which foods give you the most DNA?
  • Extra: If you have access to a milligram scale (called a balance), you can measure how much DNA you get (called a yield). Just weigh your clean bamboo skewer and then weigh the skewer again after you have used it to fish out as much DNA as you could from your strawberry DNA extraction. Subtract the initial weight of the skewer from its weight with the DNA to get your final yield of DNA. What was the weight of your DNA yield?
  • Extra: Try to tweak different variables in this activity to see how you could change your strawberry DNA yield. For example, you could try starting with different amounts of strawberries, using different detergents or different DNA sources (such as oatmeal or kiwis). Which conditions give you the best DNA yield?

Source: http://rss.sciam.com/click.phdo?i=491c00b51490e11496483e8ee9d3fb47

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Small tornado struck southern Indiana town

ELIZABETH, Ind. ? The National Weather Service says a small tornado touched down overnight in a small southern Indiana town near the Ohio River.

A survey crew from the weather service?s Louisville, Ky., office confirmed that an EF-O tornado touched down in the Harrison County town of Elizabeth about 3 a.m. Wednesday. Meteorologist Mike Callahan said the tornado packed winds up to 80 mph as it cut a half-mile track through the area.

Elizabeth resident Teresa Campbell told WLKY-TV (http://bit.ly/11fH2mI) the tornado heavily damaged a barn and old school house on her property and stripped shingles from her home.

Neighbor Matt Marion said the tornado ?sounded like a big vacuum cleaner.?

Callahan said crews were also assessing reported tornado touchdowns near Salem in Washington County and the Orange County town of Prospect.

Source: http://www.journalgazette.net/article/20130130/NEWS07/130139952/-1/NEWS09

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Wednesday, 30 January 2013

Chick-fil-A: Business Booming Despite Gay Marriage Controversy!

Source: http://www.thehollywoodgossip.com/2013/01/chick-fil-a-business-booming-despite-gay-marriage-controversy/

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Sri Maha Sakthi Mohambigai Amman Temple- A Magical Temple

Amid the towering sky scrapers and staggering buildings of the modern age, hidden beneath their shadows are a number of Malaysia's past, remnants of an age of legends, mystery and magic. Unnoticed among the busy city streets and towers, these buildings, temples, statues boast a rich and eventful history and dynamic culture.
Sri Maha Sakthi Mohambigai Amman Temple is one such that stands proud in the city of Kuala Lumpur with one of Asia's largest malls as its backdrop. Despite its miniature size compared to the giant complex of the mall, this enchanting temple towers over it in splendor in architectural and historical significance. For over a century the temple has stood in the heart of the Mid Valley while the city grew around it making it a convenient location visited often by devotees and tourists alike.

Two imposing giant figures of Bhootangals stand sentinel at the entrance to the sacred temple. The structure in itself is charmingly situated with stunning architectural brilliance of our ancestors and is a sight to cherish during a festival when decorated in bright colored garlands against the setting sun. A meditating Buddha statue sits at the base of a Bodhi tree accompanied by figurines of Hindu and Chinese gods and religious gurus. It is a temple dedicated to goddess Mohambigai, a combination of Parvathy, Laxmi and Saraswathi representing power, fortune and knowledge. After a busy day of shopping, a visit to the temple with its pristine serenity amid the aromas of burning incense and away from the noise and bustle of the city beyond will help sooth your mind, body and soul.

Kuala Lumpur is a sightseer's haven with an array of locations from nature to history and culture and shopping to take your breath away. Grand Millennium Kuala Lumpur is a hotel in Bukit Bintang that offers a splendid blend of a mystery of the legends of the past and modern luxuries to create a comfortable setting to suite your needs. It is a Kuala Lumpur Hotel that is ideal for both the leisure and business traveler alike and ensures a most pleasant stay.

About the Author:
Uditha Dharmawardhane is a travel writer who writes under the pen name Roland Lefevre. He specializes in creating features on leisure as well as business travel destinations across the globe.
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Source: http://www.articlesnatch.com/Article/Sri-Maha-Sakthi-Mohambigai-Amman-Temple--A-Magical-Temple/4406912

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Cut losses or face new laws, MPs tell English football clubs

LONDON (Reuters) - New laws should be introduced to force English football clubs to clean up their finances unless they adopt European rules to curb spending, a group of British MPs said on Tuesday.

The call adds to pressure on the 20-team Premier League to implement Financial Fair Play (FFP) measures which European soccer's governing body UEFA has already introduced for leading teams across the continent.

New television contracts are expected to generate more than five billion pounds over the next three years for the Premier League, the world's richest in term of revenue.

However, English clubs often struggle to translate cash into profit because as much as 70 percent of their income is paid out in wages.

A report into football governance from Parliament's Culture, Media and Sport Committee did not expect that trend to change.

"We see little evidence that clubs will spend significant amounts of the funding available from the latest broadcasting rights settlement on increasing their sustainability rather than on players' salaries and transfers," it said.

Raising concerns over debt levels in English football, it called on the Premier League to follow the example of the second-tier Championship and adopt FFP rules to rein in losses.

"If they are not enforced, then we consider that legislation will be required to impose some financial discipline on clubs," the report added.

REFORM OF FA SOUGHT

The committee, comprising MPs from the three main political parties, criticised what it called a "disappointing" response to its initial inquiry into how the game is run.

It stepped up its calls for reform of the Football Association (FA), English soccer's governing body, to reduce the influence of the Premier League. Legislation should be introduced to shake up the FA if there was no progress within a year, it added.

Although the report is not binding, sports minister Hugh Robertson welcomed its findings.

"We have been clear that we want the football authorities to carry out the reforms they promised by the start of the 2013-14 season - most notably around improved governance and diverse representation at the FA, the development of a licensing system and greater financial transparency," Robertson said.

"If football does not deliver then we will look at bringing forward legislation," he added.

The FA, Premier League and Football League said they were continuing to work towards final approval and implementation of the reform proposals.

"Significant headway has already been made on many of these proposed reforms, not least on sustainability and transparency," the organisations said in a joint statement.

"The remaining reform proposals are the subject of consultation within the game and we are confident that the necessary progress will be made."

UEFA'S FFP rules pose a challenge for English clubs funded by wealthy benefactors such as Russian Roman Abramovich at Chelsea and Abu Dhabi's Sheikh Mansour Bin Zayed Al Nahyan at Premier League champions Manchester City.

Premier League clubs are due to discuss FFP at a meeting early next month, mindful of the need to ensure that the latest television windfall is not squandered.

Arsenal, Manchester United, Liverpool and Tottenham have all argued for the wholesale adoption of the UEFA model, saying that the top teams in the Premier League have no alternative.

Others are more resistant to a system that they argue would prevent a smaller club from challenging the elite.

A number of British football clubs have failed financially in recent years but have been able to relaunch with new backers.

Rangers, Scottish champions a record 54 times, collapsed under a pile of debt last year. The Glasgow club was salvaged by new owners but has been consigned to restart from the fourth tier of the Scottish game.

(Editing by Clare Fallon)

Source: http://news.yahoo.com/cut-losses-face-laws-mps-tell-english-clubs-014723086--finance.html

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Tuesday, 29 January 2013

Study Bolsters Quantum Vibration Scent Theory

Girl Smelling Marigolds Girl Smelling Marigolds Image: Flickr/moodboardphotography

How does the sense of smell work? Today two competing camps of scientists are at war over this very question. And the more controversial theory has just received important new experimental confirmation.

At issue is whether our noses use delicate quantum mechanisms for sensing the vibrations of odor molecules (aka odorants). Does the nose, in other words, read off the chemical makeup of a mystery odorant?say, a waft of perfume or the aroma of wilted lettuce?by ?ringing? it like a bell? Chemistry and forensics labs do this all the time with spectrometers?machines that bounce infrared light off mystery materials to reveal the telltale vibrations that the light provokes. Olfaction might, according to the vibration theory of smell, do the same using tiny currents of electrons instead of infrared photons (see previous coverage of the vibration theory here).

The predominant theory of smell today says: No way. The millions of different odorants in the world are a little more like puzzle pieces, it suggests. And our noses contain scores of different kinds of receptors that each prefer to bind with specific types of pieces. So a receptor that is set to bind to a molecule called limonene sends a signal to our brains when it finds that compound, and that's one of the cues behind the smell of citrus. Likewise that same receptor wouldn't bind to hydrogen sulfide?which smells of rotten eggs.

So, the promoters of the standard theory say, the familiar chemical interactions between receptor and odorant are all that's needed to explain olfaction. No fancy quantum vibration theory is necessary.

Yet here's a twist: odorant molecules typically contain many hydrogen atoms. And hydrogen comes in multiple forms, each very chemically similar to the others. But those different isotopes of hydrogen do strongly affect how a molecule vibrates. So deuterium, containing a hydrogen nucleus that has both a proton and a neutron (as opposed to plain-old-hydrogen that has just a proton), might help scientists discriminate between the proposed vibration and standard chemical binding theories of olfaction.

According to new research published today in PLoS ONE, human noses can sniff out the presence of at least some kinds of deuterium. Specifically, experimenters found regular musk molecules smelled different from ones that contain deuterium. "Deuterated" musks, says researcher Luca Turin of the Alexander Fleming Biomedical Sciences Research Center in Greece, lose much of their musky odor and instead contain overtones of burnt candle wax.

The finding represents a victory for the vibration theory, Turin says. And, he adds, it makes some sense, when you consider the purpose of our olfactory ability?whatever its mechanism is. The natural world contains millions of types of molecules. Some are good for us, and some are bad. The nose helps to distinguish one from the other. "Olfaction is trying to be like an analytical chemist," Turin says. "It's trying to identify unknowns." Chemists identify unknowns using spectrometers. Olfactory receptors, according to the vibration theory, act like little wetware spectrometers.

Adding to Turin's quiver is a 2011 finding in Proceedings of the National Academy of Sciences indicating that drosophila flies, too, can smell the difference between a molecule called acetophenone (which to humans smells sweet) and its deuterated cousin.

That?s all well and good, says Eric Block, professor of chemistry at the University at Albany in New York State. But, he says, it hardly proves the vibration theory, which faces some contrary evidence. For one, he points out that Turin once claimed humans, like drosophilia, could sniff out a deuterated version of the molecule acetophenone from the regular stuff, yet in 2004 Nature Neuroscience published a contrary claim, that human noses can't smell the presence of deuterium in acetophenone (Scientific American is part of Nature Publishing Group). And, Turin himself says in his new paper that he has confirmed the negative 2004 finding, although he thinks he has an explanation for the failure: deuterated acetophenone has relatively few deuteriums in it and thus may generate a weak vibrational signal that is too weak for humans to detect. Block says Turin can't have it both ways: either noses can smell deuterium or they can't.

Source: http://rss.sciam.com/click.phdo?i=ade08dd9841015afffd10cdbdd57b5c4

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PFT: NFL players may be called to testify on HGH

Philadelphia Eagles quarterback Vick throws a pass as he is rushed by New York Giants Umenyiora in the second quarter during their NFL football game in East RutherfordReuters

While it?s true that the Philadelphia Eagles won?t be dumping quarterback Mike Vick before $3 million of his $15.5 million base salary becomes fully guaranteed on February 6, the Eagles won?t be taking their time in deciding whether Vick will be moving along.

The plan, as we understand it, will unfold like a flow chart.

Step one, new Eagles coach Chip Kelly will study film in an effort to decide whether he wants Vick or Nick Foles or someone else to be the team?s quarterback.

Step two, if Kelly decides that he definitely wants Vick, will be to try to work out an alternative arrangement that entails Vick making less than $15.5 million.? The amount the Eagles are willing to pay will be determined in large part by how badly Kelly wants Vick.? There?s a chance, in theory, that Kelly will want Vick badly enough to bite the bullet and pay the full amount.

There?s also a chance Vick will want to play for Kelly badly enough to take a proverbial haircut on his promised pay.

Step three, if it?s determined that Kelly doesn?t want Vick or that Vick won?t accept whatever reduced contract the team is offering, will be to try to trade Vick to another team that would pay him more than the Eagles are willing to pay ? and that would also give the Eagles value in return for the 2010 comeback player of the year.

Time is of the essence on all steps, because if the Eagles are going to maximize trade interest and trade value, they need to do it before teams make other plans at quarterback, by signing for example a free agent.? It?s expected that the Eagles will head to the Scouting Combine with an action plan, with the hopes of getting an agreement in principle with a new team well before March 13, when trades will become finalized.

Complicating a potential trade is that a new team would have to pay Vick $15.5 million this year or persuade him to take less.

If the Eagles can?t trade Vick and if they can?t work out a new deal with him, that?s when things will get interesting.? If Vick shows up for the start of the offseason workout program in April and drops a dumbbell on his foot or pops an Achilles while running at the practice facility, the Eagles will owe him the full amount of his salary if/when he lands on injured reserve.

The Eagles could be tempted to try to block Vick from the facility, like the Titans did several years ago with the late Steve McNair.? But McNair ultimately won his grievance on that issue, and the Eagles would be tiptoeing into dangerous territory if they try to freeze Vick out.

That approach also would counter the team?s new effort to treat its players with a higher level of respect and dignity, an approach that G.M. Howie Roseman seems to be adopting in the wake of the departure of former team president Joe Banner.? (This presumes that there was a problem under Banner; some with the Eagles may be trying to sell the idea that there was.? The Mike Patterson debacle would tend to counter the idea that everything is fine and dandy now.)

Regardless, while the Eagles aren?t worried about next week?s deadline, they?ll be operating on internal deadlines that will prevent this from lingering deep into the offseason.

Source: http://profootballtalk.nbcsports.com/2013/01/28/congress-warns-players-may-be-called-to-testify-about-hgh/related/

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Monday, 28 January 2013

As Android rises, Asia's trend-setters feel iPhone fatigue

23 hrs.

SINGAPORE?? Apple's iconic iPhone is losing some of its luster among Asia's well-heeled consumers in Singapore and Hong Kong, a victim of changing mobile habits and its own runaway success.

Driven by a combination of iPhone fatigue, a desire to be different and a plethora of competing devices, users are turning to other brands, notably those from Samsung Electronics, eating into Apple's market share.

In Singapore, Apple's products were so dominant in 2010 that more devices here ran its iOS operating system per capita than anywhere else in the world.

But StatCounter, which measures traffic collected across a network of 3 million websites, calculates that Apple's share of mobile devices in Singapore ? iPad and iPhone ? declined sharply last year. From a peak of 72 percent in January 2012, its share fell to 50 percent this month, while Android devices now account for 43 percent of the market, up from 20 percent in the same month last year.

In Hong Kong, devices running Apple's iOS now account for about 30 percent of the total, down from about 45 percent a year ago. Android accounts for nearly two-thirds.

"Apple is still viewed as a prestigious brand, but there are just so many other cool smartphones out there now that the competition is just much stiffer," said Tom Clayton, chief executive of Singapore-based Bubble Motion, which develops a popular regional social media app called Bubbly.

Leading indicators
Where Hong Kong and Singapore lead, other key markets across fast-growing Asia usually follow.

"Singapore and Hong Kong tend to be, from an electronics perspective, leading indicators on what is going to be hot in Western Europe and North America, as well as what is going to take off in the region," said Jim Wagstaff, who runs a Singapore-based company called Jam Factory?that's developing mobile apps for enterprises.

Southeast Asia is adopting smartphones fast ? consumers spent 78 percent more on smartphones in the 12 months up to September 2012 than they did the year before, according to research company GfK.

Android rising
Anecdotal evidence of iPhone fatigue isn't hard to find: Where a year ago iPhones swamped other devices on the subways of Hong Kong and Singapore, they are now outnumbered by Samsung and HTC smartphones.

While this is partly explained by the proliferation of Android devices, from the cheap to the fancy, there are other signs that Apple has lost followers.

Singapore entrepreneur Aileen Sim recently launched an app for splitting bills called BillPin, settling on an iOS version because that was the dominant platform in the three countries she was targeting ? Singapore, India and the United States.

"But what surprised us was how strong the call for Android was when we launched our app," she said.

Indeed, 70 percent of their target users ? 20-something college students and fresh graduates ? said they were either already on Android or planned to switch over.

"Android is becoming really hard to ignore, around the region and in the U.S. for sure, but surprisingly even in Singapore," she said. "Even my younger early-20s cousins are mostly on Android now."

BillPin launched an Android version this month.

Standing out from the crowd
Napoleon Biggs, chief strategy officer at Gravitas Group, a Hong Kong-based mobile marketing company, said that while Apple and the iPhone remained premium brands there, Samsung's promotional efforts were playing to an increasingly receptive audience.

For some, it is a matter of wanting to stand out from the iPhone-carrying crowd. Others find the higher-powered, bigger-screened Android devices better suited to their changing habits ? watching video, writing Chinese characters ? while the cost of switching devices is lower than they expected, given that most popular social and gaming apps are available for both platforms.

"Hong Kong is a very fickle place," Biggs said.

Janet Chan, a 25-year-old Hong Kong advertising executive, has an iPhone 5, ?but its fast-draining battery and the appeal of a bigger screen for watching movies is prodding her to switch to a Samsung Galaxy Note II.

"After Steve Jobs died, it seems the element of surprise in product launches isn't that great anymore," she said.

Shifting trends
To be sure, there are still plenty of people buying Apple devices. Stores selling their products in places such as Indonesia were full over the Christmas holidays, and the company's new official store in Hong Kong's Causeway Bay has queues snaking out of the door most days.

But the iPhone's drop in popularity in trendy Hong Kong and Singapore is mirrored in the upmarket malls of the region.

"IPhones are like Louis Vuitton handbags," said marketing manager Narisara Konglua in Bangkok, who uses a Galaxy SIII. "It's become so commonplace to see people with iPads and iPhones so you lose your cool edge having one."

In the Indonesian capital Jakarta, an assistant manager at Coca Cola's local venture, Gatot Hadipratomo, agrees. The iPhone "used to be a cool gadget, but now more and more people use it," Hadipratomo said.

There is another influence at play: hip Korea. Korean pop music, movies and TV are hugely popular around the region, and Samsung is riding that wave. And while the impact is more visible in Hong Kong and Singapore, it also translates directly to places like Thailand.

"Thais are not very brand-loyal," says Akkaradert Bumrungmuang, 24, a student at Mahidol University in Bangkok. "That's why whatever is hot or the in-thing to have is adopted quickly here. We follow Korea, so whatever is fashionable in Korea will be a big hit."

This report was written by Jeremy Wagstaff in Singapore, with additional reporting by Lee Chyen Yee in Hong Kong, Khettiya Jittapong and Amy Sawitta Lefevre in Bangkok, and Andjarsari Paramaditha in Jakarta.

Copyright 2013 Thomson Reuters.

Source: http://www.nbcnews.com/technology/gadgetbox/android-rises-asias-trend-setters-show-signs-iphone-fatigue-1C8137474

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More than 1 brain behind E=mc2

Monday, January 28, 2013

Two American physicists outline the role played by Austrian physicist Friedrich Hasen?hrl in establishing the proportionality between the energy (E) of a quantity of matter with its mass (m) in a cavity filled with radiation. In a paper about to be published in EPJ H, Stephen Boughn from Haverford College in Pensylvannia and Tony Rothman from Princeton University in New Jersey argue how Hasen?hrl's work, for which he now receives little credit, may have contributed to the famous equation E=mc2.

According to science philosopher Thomas Kuhn, the nature of scientific progress occurs through paradigm shifts, which depend on the cultural and historical circumstances of groups of scientists. Concurring with this idea, the authors believe the notion that mass and energy should be related did not originate solely with Hasen?hrl. Nor did it suddenly emerge in 1905, when Einstein published his paper, as popular mythology would have it.

Given the lack of recognition for Hasen?hrl's contribution, the authors examined the Austrian physicist's original work on blackbody radiation in a cavity with perfectly reflective walls. This study seeks to identify the blackbody's mass changes when the cavity is moving relative to the observer.

They then explored the reason why the Austrian physicist arrived at an energy/mass correlation with the wrong factor, namely at the equation: E = (3/8) mc2. Hasen?hrl's error, they believe, stems from failing to account for the mass lost by the blackbody while radiating.

Before Hasen?hrl focused on cavity radiation, other physicists, including French mathematician Henri Poincar? and German physicist Max Abraham, showed the existence of an inertial mass associated with electromagnetic energy. In 1905, Einstein gave the correct relationship between inertial mass and electromagnetic energy, E=mc2. Nevertheless, it was not until 1911 that German physicist Max von Laue generalised it to include all forms of energy.

###

Boughn S., Rothman T. (2013), Hasen?hrl and the Equivalence of Mass and Energy, European Physical Journal H, DOI 10.1140/epjh/e2012-30061-5

For more information, please visit www.epj.org.

Springer: http://www.springer.com

Thanks to Springer 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/126477/More_than___brain_behind_E_mc_

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Engineers 'evolve' super-efficient solar cell

14 hrs.

Scientists are using principles of natural selection to evolve a more efficient solar cell.

Engineers at Northwestern University wrote a computer program that "mates" design elements and assesses the fitness of their "offspring" to come up with the most efficient possible organic solar cell. Organic solar cells are made with the so-called organic elements ? carbon, oxygen and nitrogen ? and are cheaper to make, lighter and more flexible than the traditional silicon cells available in solar panels today.

Organic cells aren't as efficient at turning the sun's energy into electricity as silicon cells, however. Many research groups are working to improve organic solar cells' efficiency. If they work well, such cells could go into? electricity-producing windows ?or clothes.

In their work, the Northwestern researchers focused on the top layer of an organic solar cell, called the scattering layer, which traps photons from sunlight. They wanted a scattering layer that would hold photos for a greater amount of time.

"We wanted to determine the geometry for the scattering layer that would give us optimal performance," Cheng Sun, a mechanical engineer and one of the creators of the new organic solar cell,? said in a statement. "But with so many possibilities, it's difficult to know where to start, so we looked to laws of natural selection to guide us."

Sun and his colleagues' program simulated more than 20 generations of matings to come up with their final design. The program also mimicked the biological processes of mutation and an exchange of traits called crossing over.

The resulting design traps photons for three times as long as the Yablonovitch Limit, which describes how long a photon is likely to stay in a semiconducting material. Researchers have only been able to reach and break the Yablonovitch Limit in the last few years.?

The engineers? published their work ?Jan. 3 in the journal Scientific Reports.

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Copyright 2013 TechNewsDaily, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Source: http://www.nbcnews.com/technology/futureoftech/engineersscientists-evolve-super-efficient-solar-cell-1C8124835

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Sunday, 27 January 2013

Thousands march for gun control in Washington

WASHINGTON (AP) ? Thousands of people, many holding signs with names of gun violence victims and messages such as "Ban Assault Weapons Now," joined a rally for gun control on Saturday, marching from the Capitol to the Washington Monument.

Participants were led by Mayor Vincent Gray and other officials Saturday morning, and the crowd stretched for about two blocks along Constitution Avenue. Police blocked off half the road.

Participants held signs reading "Gun Control Now" and "Stop NRA," among other messages. Other signs were simple and white, with the names of victims of gun violence.

About 100 residents were expected from Newtown, Conn., where a gunman killed 20 first-graders and six teachers at a school in December. The rally was organized in response to that shooting.

Once the crowd arrived at the monument, speakers called for a ban on military-style assault weapons and high-capacity ammunition.

Education Secretary Arne Duncan told the crowd it's not about taking away Second Amendment gun rights, but about gun safety and saving lives. He said he and President Barack Obama would do everything they could to enact gun control policies.

"We must act, we must act, we must act," Duncan said.

Del. Eleanor Holmes Norton, D.C.'s non-voting representative in Congress, said the gun lobby can be stopped. The crowd chanted back, "Yes, we can."

Norton said the nation didn't act after previous mass killings, but she said "we the people," won't give up this time.

"We are all culpable if we do nothing now," Norton said

Participant Kara Baekey of Norwalk, Conn., said that when she heard about the Newtown shooting, she immediately thought of her two young children. She said she decided she must take action, and that's why she joined the march.

"I wanted to make sure this never happens at my kids' school or any other school," Baekey said. "It just can't happen again."

James Agenbroad, 78, of Garrett Park, Md., carried a handwritten sign on cardboard that read "Repeal the 2nd Amendment." He called it the only way to stop mass killings because he thinks the Supreme Court will strike down any other restrictions on guns.

"You can repeal it," he said. "We repealed prohibition."

Molly Smith, the artistic director of Washington's Arena Stage, and her partner organized the march. Organizers said that in addition to the 100 from Newtown, they expected buses of participants from New Jersey, New York and Philadelphia. Others are flying in from Seattle, San Francisco and even Alaska.

While she's never organized a political march before, Smith said she was compelled to press for a change in the law. The march organizers support President Barack Obama's call for a ban on military-style assault weapons and high-capacity ammunition magazines as well as for universal background checks for gun sales. They also want lawmakers to require gun safety training for all buyers of firearms.

"With the drum roll, the consistency of the mass murders and the shock of it, it is always something that is moving and devastating to me. And then, it's as if I move on," Smith said. "And in this moment, I can't move on. I can't move on.

"I think it's because it was children, babies," she said. "I was horrified by it."

After the Connecticut shootings, Smith posted something on Facebook and drew more support to do something. The group One Million Moms for Gun Control, the Washington National Cathedral and two other churches eventually signed on to co-sponsor the march. Organizers have raised more than $46,000 online to pay for equipment and fees to stage the rally.

Lawmakers from the District of Columbia and Maryland were scheduled to speak Saturday. Actress Kathleen Turner was expected to appear, along with Marian Wright Edelman of the Children's Defense Fund and Colin Goddard, a survivor from the Virginia Tech massacre.

Smith said she supports a comprehensive look at mental health and violence in video games and films. But she said the mass killings at Virginia Tech and Aurora, Colo., and Newtown, Conn., all start with guns.

"The issue is guns. The Second Amendment gives us the right to own guns, but it's not the right to own any gun," she said. "These are assault weapons, made for killing people."

___

March on Washington for Gun Control: http://www.guncontrolmarch.com/

Source: http://news.yahoo.com/thousands-march-gun-control-washington-164306917.html

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Fears grow that Libya is incubator of turmoil

FILE - In this Tuesday Feb. 14, 2012 file photo, Libyan militias from towns throughout the country's west parade through Tripoli, Libya. Libya's upheaval the past two years helped lead to the ongoing conflict in Mali, and now Mali's war threatens to wash back and further hike Libya's instability. There is a growing fear that post-Moammar Gadhafi Libya is becoming an incubator of turmoil, with an overflow of weapons and Islamic jihadi militants operating freely, ready for battlefields at home or abroad. (AP Photo/ Abdel Magid Al Fergany, File)

FILE - In this Tuesday Feb. 14, 2012 file photo, Libyan militias from towns throughout the country's west parade through Tripoli, Libya. Libya's upheaval the past two years helped lead to the ongoing conflict in Mali, and now Mali's war threatens to wash back and further hike Libya's instability. There is a growing fear that post-Moammar Gadhafi Libya is becoming an incubator of turmoil, with an overflow of weapons and Islamic jihadi militants operating freely, ready for battlefields at home or abroad. (AP Photo/ Abdel Magid Al Fergany, File)

FILE -- In this Friday, Sept. 14, 2012 file photo, a Libyan follower of Ansar al-Shariah Brigades chants as he carries the Brigades flag, with Arabic writing that reads, "There is no God but Allah and Muhammad is his messenger, Ansar al-Shariah," during a protest in front of the Tibesti Hotel, in Benghazi, Libya. Libya's upheaval the past two years helped lead to the ongoing conflict in Mali, and now Mali's war threatens to wash back and further hike Libya's instability. There is a growing fear that post-Moammar Gadhafi Libya is becoming an incubator of turmoil, with an overflow of weapons and Islamic jihadi militants operating freely, ready for battlefields at home or abroad. (AP Photo/Mohammad Hannon, File)

FILE - In this Friday, Sept. 14, 2012 file photo, Libyan military guards check one of the U.S. Consulate's burnt out buildings during a visit by Libyan President Mohammed el-Megarif, not shown, to the U.S. Consulate to express sympathy for the death of the American ambassador, Chris Stevens and his colleagues in the deadly attack on the Consulate last Tuesday, September 11, in Benghazi, Libya. Libya's upheaval the past two years helped lead to the ongoing conflict in Mali, and now Mali's war threatens to wash back and further hike Libya's instability. There is a growing fear that post-Moammar Gadhafi Libya is becoming an incubator of turmoil, with an overflow of weapons and Islamic jihadi militants operating freely, ready for battlefields at home or abroad.(AP Photo/Mohammad Hannon, File)

FILE --In this Saturday, Sept. 22, 2012 file photo, graffiti on one of the city walls calls on people to stop random firing of weapons making the point that when a bullet goes up it also comes down and can injure or kill people, in Benghazi, Libya. Libya's upheaval the past two years helped lead to the ongoing conflict in Mali, and now Mali's war threatens to wash back and further hike Libya's instability. There is a growing fear that post-Moammar Gadhafi Libya is becoming an incubator of turmoil, with an overflow of weapons and Islamic jihadi militants operating freely, ready for battlefields at home or abroad. (AP Photo/Mohammad Hannon, File)

FILE -- In this Friday, Sept. 21, 2012 file photo, Libyan civilians watch fires in the Ansar al-Shariah Brigades compound, after hundreds of Libyans, Libyan Military, and Police raided the Brigades base, in Benghazi, Libya. Libya's upheaval the past two years helped lead to the ongoing conflict in Mali, and now Mali's war threatens to wash back and further hike Libya's instability. There is a growing fear that post-Moammar Gadhafi Libya is becoming an incubator of turmoil, with an overflow of weapons and Islamic jihadi militants operating freely, ready for battlefields at home or abroad. (AP Photo/Mohammad Hannon, File)

Libya's upheaval the past two years helped lead to the ongoing conflict in Mali, and now Mali's war threatens to wash back and further hike Libya's instability. Fears are growing that post-Moammar Gadhafi Libya is becoming an incubator of turmoil, with an overflow of weapons and Islamic jihadi militants operating freely, ready for battlefields at home or abroad.

The possibility of a Mali backlash was underlined the past week when several European governments evacuated their citizens from Libya's second largest city, Benghazi, fearing attacks in retaliation for the French-led military assault against al-Qaida-linked extremists in northern Mali.

More worrisome is the possibility that Islamic militants inspired by ? or linked to ? al-Qaida can establish a strong enough foothold in Libya to spread instability across a swath of North Africa where long, porous desert borders have little meaning, governments are weak, and tribal and ethnic networks stretch from country to country. The Associated Press examined the dangers in recent interviews with officials, tribal leaders and jihadis in various parts of Libya.

Already, Libya's turmoil echoes around the region and in the Middle East. The large numbers of weapons brought into Libya or seized from government caches during the 2011 civil war against Gadhafi are now smuggled freely to Mali, Egypt and its Sinai Peninsula, the Hamas-ruled Gaza Strip and to rebels fighting Syrian President Bashar Assad. Jihadis in Libya are believed to have operational links with fellow militant groups in the same swath, Libyan fighters have joined rebels in Syria and are believed to operate in other countries as well.

Libyan officials, activists and experts are increasingly raising alarm over how Islamic militants have taken advantage of the oil-rich country's weakness to grow in strength. During his more than four-decade rule Gadhafi stripped the country of national institutions, and after his fall the central government has little authority beyond the capital, Tripoli. Militias established to fight Gadhafi remain dominant, and tribes and regions are sharply divided.

In the eastern city of Benghazi, birthplace of the revolt that led to the ouster and killing of Gadhafi, militias espousing an al-Qaida ideology and including veteran fighters are prevalent, even ostensibly serving as security forces on behalf of the government since the police and military are so weak and poorly armed. One such militia, Ansar al-Shariah, is believed to have been behind the Sept. 11 attack on the U.S. Consulate in the city that killed four Americans, including the ambassador. Since then, militants have been blamed for a wave of assassinations of security officers and government officials.

Earlier this month, former Libyan leader Mustafa Abdul-Jalil warned the militant threat extends to efforts to establish a state that can enforce rule of law.

"Libya will not see stability except by facing them," he told a gathering videotaped by activists and aired on Libyan TV. "It is time to either hold dialogue or confront them." He listed 30 officials and police officers assassinated in Benghazi the past year.

The Mali drama illustrates how the threat bounces back and forth across the borders drawn in the Sahel, the region stretching across the Sahara Desert. Libya and Mali are separated by Algeria, but the two countries had deep ties under Gadhafi. Thousands of Tuaregs moved from Mali to Libya beginning in the 1970s, and many joined special divisions of Gadhafi's military where they earned higher salaries than they would have at home.

As Gadhafi was falling in 2011, thousands of heavily armed Tuareg fighters in southern Libya fled to northern Mali. The Tuareg are an indigenous ethnic group living throughout the Sahel, from Mali to Chad and into Libya and Algeria.

The fighters, led by commander Mohammed Ag Najem, broke the Mali government's hold over the north and declared their long-held dream of a Tuareg homeland, Azawad. But they in turn were defeated by Islamic militants, some linked to al-Qaida's branch in North Africa, who took over the territory and imposed rule under an extreme version of Shariah, or Islamic law. This month, as militants moved south, France launched its military intervention to rescue the Mali government, conducting airstrikes against militants.

In retaliation, militants seized an oil complex in eastern Algeria, prompting a siege by Algerian forces that killed dozens of Western hostages and militants.

The militant group that carried out the Algeria hostage taking, in turn, had help from Libyan extremists in the form of smuggled weapons and "organizational ties," the group's leader, Moktar Belmoktar said.

"Their ideological and organizational connection to us is not an accusation against a Muslim but a source of pride and honor to us and to them," Belmoktar, the one-eyed Algerian founder of the Masked Brigade, said of the Libyans in an interview with The Mauritanian newspaper in mid-December. "Jihadists in al-Qaida and in general were the biggest beneficiaries of the Arab world uprisings, because these uprisings have broken the chains of fear ... that the agent regimes of the West imposed."

He urged Libyan militants not to submit to calls by the Tripoli government to hand over their weapons, saying their arms are "the source of their dignity and their guarantee of security."

With pressure building on Mali's Islamists, Libya provides a possible alternative haven for jihadis, said Scott Stewart of the global intelligence group Stratfor.

"It is a very good place to operate if you are an extremist," he said. "There are fault lines and divisions ... The central government has very little authority outside Tripoli. This is very conducive environment for Jihad to thrive."

They already have a free rein in Benghazi.

"Libya became a heaven for them," Col. Salah Bouhalqa, a leading military commander in Benghazi, said of al-Qaida. "The Westerners are fearful that what happened in Algeria will take place in Libya. And here, just like Mali and Egypt and Iraq, these groups have extensions."

Some extremists say they are determined to shape the new Libya. Youssef Jihani, a member of Ansar Shariah in Benghazi, vowed that he and other jihadis would not accept a return to the days when they were jailed and executed under Gadhafi's rule. He told the AP in Benghazi late last year that the toppling of Gadhafi would not have been possible without the strength of jihadi fighters who he said joined the uprising to ensure an "Islamic state of Libya, where Shariah rule is implemented."

The bearded young man said he lay down his weapons last year. But he said he would take arms up again if Libya's next constitution doesn't make a clear reference to rule by Islamic law or if secular politicians hold power and try to rein in jihadis.

Jihani proudly said he believes in al-Qaida and supports its slain leader Osama bin Laden and Afghan Taliban leader Mullah Omar. He said that during Libya's civil war in 2011, he killed a captured soldier from Gadhafi's army after discovering 11 video clips on his mobile phone showing soldiers raping women and men. Jihani said he ordered the soldier to dig his own grave, then severed his head with a knife.

"I wish I could behead him 11 times," he said. His story could not be independently confirmed.

Stewart, of Stratfor, also pointed to a concern that al-Qaida could make inroads among Libya's impoverished and alienated Tuareg.

Living in mud-brick slums or camps in the deserts of southwestern Libya, most Tuaregs were never given citizenship under Gadhafi's rule, though he used their fighters as mercenaries, and now they suffer not only from poverty but from the disdain of Libyans who see them as Gadhafi loyalists.

For centuries, Tuareg ran caravan routes across the Sahara, carrying gold and other valuables. Now they're known for smuggling weapons and drugs. In slums around the towns of Sabha and Owbari, they sleep next to livestock in shacks with corrugated metal roofs, with webs of electric cables dangling from poles overhead and garbage-filled streets.

Libya's new leadership has largely shunned them. The Tuareg's four members in parliament were removed because of ties to Gadhafi's regime, leaving them without a political voice. The Tuareg contend they were exploited by Gadhafi, along with all other Libyans.

"Gadhafi's rule left behind a breeding ground for terrorism by depriving people of their rights and education .... After all the promises, we thought we will live in heaven, but kids here die from scorpion bites," said Suleiman Naaim, a Tuareg rights activist, told the AP in Owbari.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/cae69a7523db45408eeb2b3a98c0c9c5/Article_2013-01-26-ML-Libya-Turmoil-Central/id-24b860b55ef34a54b0ac51383e3a569b

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Holocaust archive reunites long lost families

Nearly 70 years after the end of the Second World War, a Holocaust archive in Germany is helping victims and survivors of Nazi atrocities to find clues about the past -- and is still reuniting families. NBC News' Andy Eckardt reports from Bad Arolsen, Germany.

By Andy Eckardt, Producer, NBC News

BAD AROLSEN, Germany -- Wilhelm Thiem may be 72 but he celebrated his first real birthday in November.

Abducted in Poland by Nazi troops aged two, Thiem has spent most of his life on a painful journey seeking to discover his true name and identity.?

Until just a few months ago, the retired entrepreneur had not known his birth date, where he was born, what had happened to his mother or whether he had any other family members.

"I hardly knew anything about my personal history," Thiem said.?"I always felt like an outsider, it was a feeling of not belonging in this world."

Thiem was raised by a foster parent in northern Germany who was appointed by the Nazis to take care of the young child. Thiem called her "Mrs. Huebner" but was later officially adopted and given her maiden name.

At age 12, Thiem learned that Mrs. Huebner was not his real mother. He started asking her about his past, wanting to learn more about his family, but his questions remained unanswered. For decades, his personal history remained a mystery.

Early last year, Thiem came across a newspaper article about the International Tracing Service?(ITS), an organization that maintains a vast archive of files related to more than 17.5 million victims of the Holocaust and Nazi oppression.

"At first the ITS researchers told me that they could not find any documents with my name on them," Thiem recalled. "But then they contacted the Red Cross in Poland and in the end, there were some leads."

'Very emotional moment'
After several months of research, Thiem was informed that he had been born in Lodz, Poland, and that his birth name was Zbigniew Wilhelm Katmierczak.

For the first time in his life, Thiem held a birth certificate in his hands that gave him an identity.

"It was a very emotional moment," Thiem recalled. "Both my wife and I could not hold back tears."

Researchers revealed that his mother was also sent to Germany as a forced laborer but later returned to Poland. She eventually married a Frenchman and relocated to France.

Thiem was also told of a surviving aunt, who still lives in his Polish hometown.

He is now anxiously making plans for a trip to Lodz with his wife for a very special family reunion.

"I am hoping to learn more facts, maybe find other family members," Thiem said. "Maybe I can find traces of my mother and father.?All of this is of huge interest to me, it means so much."

Established by Allies in the final days of the Second World War and originally run by the Red Cross, the ITS helps to uncover the fates of Holocaust victims and others who suffered under the Nazi regime.

The archive in Bad Arolsen is said to be the largest storage facility of documents related to the Holocaust. It includes 30 million documents in 16 miles of shelves housing information about Holocaust survivors, displaced persons, slave laborers and political refugees from former Eastern Bloc countries.

Over the past 50 years, the ITS has answered more than 10 million requests. About 1,000 search requests continue to trickle in to the archive monthly.

"Many people still do not know what has become of their loved ones,"?said Dr. Ingeborg Berggreen-Merkel from Germany's federal commission of culture. "Even decades after the end of the Holocaust and the war, there is this persisting uncertainty, which results from the fact that part of one's own history remains untold."?

Visitors to the archive come into direct contact with the bureaucracy of mass murder.

Its meticulous records include concentration camp files, "deportation cards," patient records and a post-war index of non-German citizens. Its researchers plow through the stacks of yellowing paper, registering and scanning as many of the historic documents as possible. More than 95 percent have now been digitized.

But due to concerns about the victims' privacy, the ITS and the German government kept the files closed to the public for half a century. While search requests have been accepted since the end of the war, the archive was initially not "open source."

Following public pressure from survivor groups, historians and researchers, who called for public access to the archives, the ITS Commission -- consisting of 11 member states -- declared itself in favor of opening up Bad Arolsen in 1998.

Yet, scholars and researchers were only given access to the documents beginning in 2007.

"I think it was criminal that the documents were not opened up earlier," said Holocaust survivor and U.S. judge Thomas Buergenthal. He was able to find?records of his father's ordeal in the concentration camps of Auschwitz, Sachsenhausen and Buchenwald at Bad Arolsen.

"This archive is my father's only memorial, we have no other," Buergenthal added.

But although time has claimed many eyewitnesses, the archive is still helping to reunite survivors of Nazi terror -- such as Thiem and his long lost aunt. She remembers her nephew -- who is now an elderly man -- as a "little child."

"I spent a lifetime wondering who I really am, now I know," Thiem said.

Related:?

A retired teacher's courageous crusade: Tackling neo-Nazi hate

Despite dark past, young Israelis seek new lives in German capital

Warm glow of Berlin's 'beautiful' gas streetlights set to fade

Source: http://worldnews.nbcnews.com/_news/2013/01/26/16641847-holocaust-archive-rescues-lost-identities-reunites-long-lost-families?lite

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Saturday, 26 January 2013

Health News - Study eyes stem cell blood test to detect macular ...

A study led by researchers at the University of North Carolina School of Medicine is the foundation for a promising new blood test to detect the progression of macular degeneration to its more serious form, which can lead to blindness.

CHAPEL HILL, N.C. ? A study led by researchers at the University of North Carolina is the foundation for a promising new blood test to detect the progression of macular degeneration to its more serious form, which can lead to blindness.

Age-related macular degeneration (ARMD) is the most common cause of central vision loss in the western world. Those affected by?macular degeneration?find many daily activities such as driving, reading and watching TV increasingly difficult.

In the United States as many as 11 million Americans have some form of macular degeneration, including both early and later stages of the ?dry? and wet? forms. The eye condition deteriorates the macula, the central area of the retina, causing blind spots and blurred or distorted vision.

?People with macular degeneration start out with the dry type, which we can detect with a simple dilated eye exam,? says Dr. Sai H. Chavala, Director of the Laboratory for Retinal Rehabilitation and Assistant Professor of Ophthalmology and Cell Biology & Physiology at the UNC School of Medicine. He practices at the Kittner Eye Center at UNC Health Care in Chapel Hill and New Bern.

?But about 20 percent of patients at some time in their life will develop wet macular degeneration, which is characterized by blood vessels that grow under the surface of the retina. These abnormal vessels can leak blood and fluid, which causes irreversible damage to the cells of the retina leading to irreversible vision loss.? Since we don?t have a way to predict the precise timing of this event, we have no way of preventing it.? he adds.

Currently, no test is available to predict the conversion from dry to wet ARMD. But the new paper, published online Jan. 24, 2013, in the journal PLOS ONE, describes how it could be accomplished.

The ability to predict the conversion from dry to wet age-related macular degeneration is one of the most coveted achievements in vision science, according to Chavala. ?A clinical test that predicts impending conversion is the first step in developing treatments to prevent the switch to wet macular degeneration.?

In the study, the researchers used the Cell Search system, an FDA-approved technology for automated rare cell analysis (ARCA), which Chavala and colleagues applied to the identification and analysis of endothelial progenitor cells (EPCs). These cell types are rare compared to other blood cells.? EPCs are a stem cell subset that give rise to the endothelium found in the inner lining of blood vessels.? EPCs are liberated from the bone marrow and circulate in the blood in response to signals for new blood vessel growth.

Previous studies using fluorescence activated cell sorting (FACS), or flow cytometry, have demonstrated that EPCs are elevated in patients with wet macular degeneration compared to patients with the dry type.? However, FACS measurements are subject to substantial variability between observers, along with an element of subjectivity when measuring rare cell populations challenging its clinical use.

Chavala and colleagues thought that ARCA, a new technology capable of measuring rare cell populations reliably, was better suited as a diagnostic blood test. This technology is currently being used in clinical practice for cancer patients so the technology can be readily adopted for macular degeneration patients.

The study compared traditional FACS and ARCA in 23 subjects with age-related macular degeneration, both dry and wet. The samples were ?masked? so that no one involved in the sample assessments at the two labs where the analyses were done knew the type of macular degeneration the patients had.

?We found a promising trend favoring the ARCA technology in detecting a higher number of EPCs in the wet macular degeneration group compared to the dry. And that trend was not observed with traditional FACS,? Chavala said.? ?We were surprised that we needed to analyze relatively few patients to detect this trend.?

?Our ?proof of concept study? suggests that the ARCA technology could be a powerful tool for monitoring progression in macular degeneration.? Further study is required to validate this test for detecting and preventing the conversion from dry to wet macular degeneration.

?The next step is to do a prospective study in a greater number of subjects having the known criteria that puts them at higher risk of progressing from dry to wet macular degeneration,? Chavala said.?

Co-authors include lead author Emil Anthony T. Say, MD, at UNC Kittner Eye Center; Alex Melamud, MD, Retina Group of Washington, Washington, D.C.; Denise Ann Esserman, PhD, UNC Gillings School of Global Public Health; and Thomas J. Povsic, MD, PhD, Duke University Medical Center in Durham, N.C.

Support for the study came from the Adler Foundation, Hope for Vision, and Research to Prevent Blindness grants.

Disclosure Statement: Dr. Chavala has filed a patent surrounding this technology and is founder of Serrata, LLC, a company that plans to market diagnostic testing for ocular disease.

Media contact: Les Lang (919) 966-9366, [email?protected]

Source: http://www.healthcanal.com/eyes-vision/35646-Study-eyes-stem-cell-blood-test-detect-macular-degeneration-progression.html

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Best Accounting Practice for a New Business | Lake Wylie Tax Service

Accounting | Lake Wylie Tax ServiceOne best practice for any new business involves having an accountant on board to keep records and help with all accounting task that goes along with any business. This can not only keep the new business on track but lets the owner(s) keep emphasis on making the business work. It is important that the new business owner stays focused on growing the business especially as difficult as the economy is today.

Accountants do so much more that can help keep new businesses afloat today besides just taxes. By providing monthly financial reports they can help keep track of profit and loss. In this way you can see whether you are making money or if you may need to make changes that will increase the flow of business. Using an accountant should be part of your business plan.

As part of adding an accountant as part of your business make sure you meet with them quarterly to review profit and loss so that you know where your business is at financially. They may even offer suggestions that will help to keep you on the right track. For example if they see somewhere they you can save on in-house expenses they can bring this to your attention for your review.

Another area that they may help you involves a cash flow forecast. In this way you can set goals to work towards as well as be prepared for the financial ups and downs that all businesses experience. Having an accountant who is keeping track of your financial development in place gives you the information that can be used if you need to get further financing for improvement or upgrades. This can save a lot of time and headaches.

You do not have to have an accountant as an employee but can contract with a local professional or better yet look at companies that are available in your area. In this way you will always have access to someone who is up to date on the changing laws that regulate the financial aspects or your business.

Besides those that have already been listed tax planning is a must for any new business to survive today?s economy and what better place to start than with a great accountant. Your accountant can be worth their weight in gold or increased business profits if you work together in the area of their expertise. Here at Lake Wylie Tax Service we can provide you with the accounting services you need at a cost you can afford. It has already been said that you don?t have to know everything to succeed but you do have to know the right people to help you get there and there is no exception in the accounting arena. Give us a call today. Also, please feel free to comment or leave suggestions ? we love hearing from you.

Source: http://www.lakewylietax.com/best-accounting-practice-for-a-new-business/

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Friday, 25 January 2013

California Intends to Declare BPA a Reproductive Health Hazard

Sacramento Capitol California today is announcing its intent to declare bisphenol A a reproductive hazard. Under a state law known as Prop. 65, items that contain a certain level of BPA would need warning signs for consumers. Pictured: California's Sacramento State Capitol Image: Flickr/Franco Folini

California today is announcing its intent to declare bisphenol A a reproductive hazard.

Under a state law known as Prop. 65, warning signs would be required for consumer items that contain a certain high level of BPA. BPA is used to make polycarbonate plastic, and also is found in liners of food and beverage cans and some thermal receipts.

Scientists say BPA is an estrogen-like substance that can alter reproductive hormones. California's Office of Environmental Health Hazard Assessment said it based its decision to list BPA as a Prop. 65 chemical on a 2008 report by the National Toxicology Program.

?"Bisphenol A meets the criteria for listing as known to the State to cause reproductive toxicity (developmental endpoint) under Proposition 65, based on findings of NTP [the National Toxicology Program]," according to the state agency.

"OEHHA is relying on the NTP?s conclusion in the report that there is clear evidence of adverse developmental effects in laboratory animals at 'high' levels of exposure," according to the state's decision.

The decision was based on laboratory tests by scientists that have shown effects on the body weight and reproductive development of the pups of pregnant rats and mice exposed to high levels of BPA.

The state agency is proposing to set an acceptable level of exposure that is considered fairly high, 290 micrograms per day. As a result, Sarah Janssen of the Natural Resources Defense Council wrote on her blog that the decision ?is not likely to trigger any warning labels on canned food or beverages.? The same is probably true for receipts and most other consumer products.

"However," she added, "a listing alone is quite significant and makes official what parents have known for years ? BPA is harmful and should be avoided."

Plastics and chemical manufacturers say the compound, which has been used in polycarbonate plastic for 50 years, is safe at levels people are exposed to

The intent of the law, passed by voters in 1986, is to require manufacturers to warn consumers whenever a chemical is used that has been linked to cancer or reproductive effects. In some cases, companies decide to avoid using the compound rather than put up warning signs in stores or other public places.

BPA already has been banned from baby bottles, and removed from most hard-shell water bottles. It also has been replaced with another chemical in most thermal receipts, although that chemical, known as BPS, also has been linked to estrogen-like effects.

The state agency will accept public comments for one month before making a final decision listing BPA.

This article originally ran at Environmental Health News, a news source published by Environmental Health Sciences, a nonprofit media company.

Source: http://rss.sciam.com/click.phdo?i=0b7cea1657e01f480b127129949a4586

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Millionaire Man: 5 Ways to Improve Your Business Security and ...

Millionaire Man: 5 Ways to Improve Your Business Security and Make Millions! skip to main | skip to sidebar

5 Ways to Improve Your Business Security and Make Millions!

The Internet has become a fundamental tool for many businesses across the world. There are now over 2,400 million people with access to the World Wide Web, making it an irreplaceable marketing and communication tool.??As?the world advances technically,?the chance of hackers gaining unauthorized access to your sensitive data?does increase. It is essential to protect your business and your customer base with products,?for example an?X509 Digital Certificate?or the trusted?VeriSign?stamp, to ensure security and confidence while using your online platforms.?1.????? Invest in?an?X509 Digital Certificate?Online hardware no longer starts and ends with the desktop computer or your laptop. Mobile devices are now able to connect to?your servers and access data at?the tap of an app. An X509 Digital Certificate can be purchased by manufacturers, and embedded into hardware to ensure that only authorized access is granted to named devices.?2.????? Add a?SSL?Certificate to your Website?Encrypt any information passed through your website with a?SSL?Certificate. Show customers and/or clients that your website is trustworthy and can be used without worry.?Get the VeriSign seal of approval.?3.????? Look into Extended Verification for Ecommerce Businesses?SSL?EV?is extended verification and offers additional encryption services for businesses who provide ecommerce facilities on their website. Take customer card details in confidence, while buyers will browse safe in the knowledge that they are purchasing goods or services from a trusted retailer. Gain the green address bar, the padlock stamp and the https:// status.?4.????? Encrypt your Emails?Invest in a Wildcard?SSL?Certificate and extend your?SSL?Certificate to cover multiple sub domains on your website, as well as email encryption.?5.????? Follow Basic Data Protection Pathways?Sometimes it is all too?easy to get stuck into the technicalities of business. Ensure that basic data protection pathways are followed ? lock away any confidential paperwork and log out of computers following active sessions.?

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Source: http://millionairedad.blogspot.com/2013/01/5-ways-to-improve-your-business.html

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