Herbal Viagra actually contains the real thing



































IF IT looks too good to be true, it probably is. Several "herbal remedies" for erectile dysfunction sold online actually contain the active ingredient from Viagra.












Michael Lamb at Arcadia University in Glenside, Pennsylvania, and colleagues purchased 10 popular "natural" uplifting remedies on the internet and tested them for the presence of sildenafil, the active ingredient in Viagra. They found the compound, or a similar synthetic drug, in seven of the 10 products – cause for concern because it can be dangerous for people with some medical conditions.












Lamb's work was presented last week at the American Academy of Forensic Sciences meeting in Washington DC.












This article appeared in print under the headline "Herbal Viagra gets a synthetic boost"


















































If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.









































































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If you are having a technical problem posting a comment, please contact technical support.








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Football: Defeated Barcelona rage over Real 'favouritism'






MADRID: Barcelona defender Gerard Pique has claimed that Real Madrid tend to get the big decisions from referees after his side were denied a last minute penalty in their 2-1 defeat to Real Madrid.

Sergio Ramos' header nine minutes from time proved to be the winner after Karim Benzema and Lionel Messi had exchanged goals in the first-half.

But Pique and his teammates were left aggrieved after Ramos appeared to fell Adriano inside the box with Barca keeper Victor Valdes even receiving a red card for his protests after the final whistle had been blown.

"We said to the referee that it seemed clear to us, but we already know how these things go. Against Real Madrid, if the game is close, just by chance things tend to go in their favour," said Pique.

"We are left with the feeling that a draw would have been a fair result if we had been given the penalty, but we cannot make this excuse because this team has too much quality to depend on refereeing decisions to win games."

The defeat was Barca's third defeat in four games and Pique admits they are struggling to find their best form.

"You can't maintain this level for 12 months. In the last four years we have always had moments in which our level of performance has dropped.

"However, it is clear that we have had three of four bad games and this is serious because Barcelona always have to win."

On the other hand victory came as even more of a welcome surprise for the hosts after manager Jose Mourinho made seven changes to the side that had beaten Barca 3-1 in the Copa del Rey on Tuesday with star-man Cristiano Ronaldo starting only on the bench.

However, even without their talisman they made the perfect start as Benzema tapped home Alvaro Morata's cross before Messi brought Barca level with a trademark left-footed finish 12 minutes later.

Ronaldo's introduction after the break though sparked the game into life and after Valdes had produced fine saves to beat away the Portuguese's free-kick and deny Morata when he was clean through, Ramos left the Barca keeper helpless as he rose highest to power home Luka Modric's corner.

Madrid's victory keeps their very slim hopes of retaining their title alive as it cuts Barca's lead over the champions to 13 points, but as Mourinho's team selection indicated of more immediate importance is Tuesday's make or break Champions League tie with Manchester United with the tie level at 1-1.

And Ramos believes that two victories against Barca is the perfect way to prepare for their trip to Old Trafford.

"It's clear that these victories are great for the confidence of the group because now we face a difficult match in the Champions League," he said.

"After the two Clasicos we are going to Manchester convinced that we can win, although with a lot of respect for the opponent who are a great team."

Elsewhere, Valencia missed the opportunity to move into fourth as Jose Barkero's late equaliser gave Levante a share of the spoils as the Valencia derby ended 2-2.

Vicente Iborra had headed Levante into an early lead before Jonas and Roberto Soldado replied for the hosts, but a slip by Jeremy Mathieu three minutes from time allowed Barkero in to salvage a point for Juan Ignacio Martinez's men.

At the bottom Deportivo la Coruna remain rooted to the foot of the table after they could only manage a 0-0 draw at home to Rayo Vallecano, but Athletic Bilbao eased their relegation fears with a hard-fought 1-0 win away to Osasuna thanks to Markel Susaeta's second-half strike.

- AFP/jc



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Butt-dial to 911 spoils alleged drug deal



Raleigh Reynolds, the accused butt-dialer.



None of us is immune from being our own worst enemy.


We find ways to sabotage ourselves that aren't even assuaged by years of visits to our psychologists.


The extremely openhearted may, therefore, find a certain at-oneness with an alleged drug dealer whose bottom may have caused him to be arrested.


As KGW-TV deals it, Raleigh Reynolds, 25, was allegedly about to participate in a narcotic business transaction.


Unfortunately (at least for him), police say a 911 dispatcher got to listen in on the proceedings, as Reynolods inadvertently called it in.



"It got a chuckle around the department because they don't make it that easy, usually," officer Aaron Christopherson told the police.


The 911 call was received just after midnight last Monday.


And the dialogue seemed somewhat incriminating. For example: "OK, cause I got 40 on me, so the only issue is seeing the product before I purchase."


I hadn't been aware that merely seeing a product was ever enough before purchasing. Though that does help to avoid buying, say, a wooden iPad.



More Technically Incorrect



The recorded butt-dial continued like this: "Yah, I definitely need a 40...and please let it be good. I'm so tired of getting ripped off."


The dispatcher concluded that it was unlikely that the conversation was about a 40-shot frappucino.


So, with the help of GPS technology, the call was traced to a back alley in Molalla, Ore., conveniently just one block from the police station.


The two suspects, a man and a woman, allegedly declared that no, they didn't have a cell phone.


However, the Molalla police have quite some IQ. They spoke loudly and, lo, the dispatcher could hear their voices.


Police allege that the drug involved was meth and Reynolds was charged with multiple felonies.


There is no record of what type of cell phone might have been the police informant.


Read More..

We Didn’t Domesticate Dogs. They Domesticated Us.


In the story of how the dog came in from the cold and onto our sofas, we tend to give ourselves a little too much credit. The most common assumption is that some hunter-gatherer with a soft spot for cuteness found some wolf puppies and adopted them. Over time, these tamed wolves would have shown their prowess at hunting, so humans kept them around the campfire until they evolved into dogs. (See "How to Build a Dog.")

But when we look back at our relationship with wolves throughout history, this doesn't really make sense. For one thing, the wolf was domesticated at a time when modern humans were not very tolerant of carnivorous competitors. In fact, after modern humans arrived in Europe around 43,000 years ago, they pretty much wiped out every large carnivore that existed, including saber-toothed cats and giant hyenas. The fossil record doesn't reveal whether these large carnivores starved to death because modern humans took most of the meat or whether humans picked them off on purpose. Either way, most of the Ice Age bestiary went extinct.

The hunting hypothesis, that humans used wolves to hunt, doesn't hold up either. Humans were already successful hunters without wolves, more successful than every other large carnivore. Wolves eat a lot of meat, as much as one deer per ten wolves every day-a lot for humans to feed or compete against. And anyone who has seen wolves in a feeding frenzy knows that wolves don't like to share.

Humans have a long history of eradicating wolves, rather than trying to adopt them. Over the last few centuries, almost every culture has hunted wolves to extinction. The first written record of the wolf's persecution was in the sixth century B.C. when Solon of Athens offered a bounty for every wolf killed. The last wolf was killed in England in the 16th century under the order of Henry VII. In Scotland, the forested landscape made wolves more difficult to kill. In response, the Scots burned the forests. North American wolves were not much better off. By 1930, there was not a wolf left in the 48 contiguous states of America.  (See "Wolf Wars.")

If this is a snapshot of our behavior toward wolves over the centuries, it presents one of the most perplexing problems: How was this misunderstood creature tolerated by humans long enough to evolve into the domestic dog?

The short version is that we often think of evolution as being the survival of the fittest, where the strong and the dominant survive and the soft and weak perish. But essentially, far from the survival of the leanest and meanest, the success of dogs comes down to survival of the friendliest.

Most likely, it was wolves that approached us, not the other way around, probably while they were scavenging around garbage dumps on the edge of human settlements. The wolves that were bold but aggressive would have been killed by humans, and so only the ones that were bold and friendly would have been tolerated.

Friendliness caused strange things to happen in the wolves. They started to look different. Domestication gave them splotchy coats, floppy ears, wagging tails. In only several generations, these friendly wolves would have become very distinctive from their more aggressive relatives. But the changes did not just affect their looks. Changes also happened to their psychology. These protodogs evolved the ability to read human gestures.

As dog owners, we take for granted that we can point to a ball or toy and our dog will bound off to get it. But the ability of dogs to read human gestures is remarkable. Even our closest relatives-chimpanzees and bonobos-can't read our gestures as readily as dogs can. Dogs are remarkably similar to human infants in the way they pay attention to us. This ability accounts for the extraordinary communication we have with our dogs. Some dogs are so attuned to their owners that they can read a gesture as subtle as a change in eye direction.

With this new ability, these protodogs were worth knowing. People who had dogs during a hunt would likely have had an advantage over those who didn't. Even today, tribes in Nicaragua depend on dogs to detect prey. Moose hunters in alpine regions bring home 56 percent more prey when they are accompanied by dogs. In the Congo, hunters believe they would starve without their dogs.

Dogs would also have served as a warning system, barking at hostile strangers from neighboring tribes. They could have defended their humans from predators.

And finally, though this is not a pleasant thought, when times were tough, dogs could have served as an emergency food supply. Thousands of years before refrigeration and with no crops to store, hunter-gatherers had no food reserves until the domestication of dogs. In tough times, dogs that were the least efficient hunters might have been sacrificed to save the group or the best hunting dogs. Once humans realized the usefulness of keeping dogs as an emergency food supply, it was not a huge jump to realize plants could be used in a similar way.

So, far from a benign human adopting a wolf puppy, it is more likely that a population of wolves adopted us. As the advantages of dog ownership became clear, we were as strongly affected by our relationship with them as they have been by their relationship with us. Dogs may even have been the catalyst for our civilization.

Dr. Brian Hare is the director of the Duke Canine Cognition Center and Vanessa Woods is a research scientist at Duke University. This essay is adapted from their new book, The Genius of Dogs, published by Dutton. To play science-based games to find the genius in your dog, visit www.dognition.com.


Read More..

US Seeks to Confirm Report of Terror Leader's Death











American military and intelligence officials said today they are attempting to confirm a report from the Chadian military of the death of al Qaeda leader Mokhtar Belmokhtar, the alleged mastermind of the deadly attack on an Algerian natural gas facility in January.


If the new report is confirmed, Belmokhtar's death would be a significant victory against a growing al Qaeda threat in northern Africa.


Belmokhtar's killing was announced on Chadian national television by armed forces spokesperson Gen. Zacharia Gobongue, who said Chadian troops "operating in northern Mali completely destroyed a terrorist base."


"The [death] toll included several dead terrorists, including their leader, Mokhtar Belmokhtar," he said.


However, an unidentified elected official in Mali told The Associated Press he doubted Belmokhtar had actually been killed and said he suspected the Chadian government of pushing the story to ease the loss of dozens of Chadian troops in operations in northern Africa.






SITE Intel Group/AP Photo







Belmokhtar is known as Mr. Marlboro because of the millions he made smuggling cigarettes across the Sahara, but in the last few months the one-eyed terrorist leader has become one of the most sought after terrorists in the world. The attack on the plant near In Amenas in eastern Algeria left dozens of Westerns and at least three Americans dead.


Belmokhtar had formed his own al Qaeda splinter group and announced he would use his wealth to finance more attacks against American and Western interests in the region and beyond.


The U.S. has badly wanted Belmokhtar stopped and actively helped in the search by French and African military units to find him, as well as another top al Qaeda leader who was reported killed yesterday.


After the Chadian announcement, House Foreign Affairs Committee Chairman Rep. Ed Royce (R-Calif.) said Belmokhtar's death, if confirmed, "would be a hard blow to the collection of jihadists operating across the region that are targeting American diplomats and energy workers."


Steve Wysocki, a plant worker who survived the attack in In Amenas thanked "military forces from around the world," especially the Chadian military, for bringing "this terrorist to an expedient justice."


"My family and I continue to mourn for our friends and colleagues who didn't make it home and pray for their families," Wysocki told ABC News.


The CIA has been after Belmokhtar since the early 1990s, Royce's statement said.


ABC News' Clayton Sandell contributed to this report.



Read More..

Herbal Viagra actually contains the real thing



































IF IT looks too good to be true, it probably is. Several "herbal remedies" for erectile dysfunction sold online actually contain the active ingredient from Viagra.












Michael Lamb at Arcadia University in Glenside, Pennsylvania, and colleagues purchased 10 popular "natural" uplifting remedies on the internet and tested them for the presence of sildenafil, the active ingredient in Viagra. They found the compound, or a similar synthetic drug, in seven of the 10 products – cause for concern because it can be dangerous for people with some medical conditions.












Lamb's work was presented last week at the American Academy of Forensic Sciences meeting in Washington DC.












This article appeared in print under the headline "Herbal Viagra gets a synthetic boost"


















































If you would like to reuse any content from New Scientist, either in print or online, please contact the syndication department first for permission. New Scientist does not own rights to photos, but there are a variety of licensing options available for use of articles and graphics we own the copyright to.




































All comments should respect the New Scientist House Rules. If you think a particular comment breaks these rules then please use the "Report" link in that comment to report it to us.


If you are having a technical problem posting a comment, please contact technical support.








Read More..

Obama to visit Russia in September






WASHINGTON: US President Barack Obama will visit Saint Petersburg for September's G20 summit and will also hold a meeting with President Vladimir Putin at the G8 summit in Northern Ireland in June.

The White House made the announcement Friday after the leaders spoke by phone to discuss the Syria crisis amid testy relations between Russia and the United States, which have deteriorated since Obama's first term.

Russia had hoped that Obama would pay an official visit to the country last year, his first since Putin returned to the presidency, but Washington's ties with Moscow have been uneasy, and the visit never took place.

Obama's announcement means that he will also not travel to Russia before the G20 summit, in another disappointment to the Kremlin.

Washington and Moscow have been especially at odds over Syria, and Russia's role in vetoing UN Security Council action to censure President Bashar al-Assad for his crackdown on an opposition revolt that has killed 70,000 people.

"The two presidents agreed on the need to advance a political transition to end the violence as soon as possible," said a White House statement, referring to Syria.

US Secretary of State John Kerry and Russian Foreign Minister Sergei Lavrov will continue to work together on the issue following their meeting in Berlin on Tuesday, the White House said.

A statement issued earlier from the Kremlin said that Putin noted the need to end "military activities" in Syria as soon as possible.

Russia also denounced a new US pledge to provide direct aid, but no arms, to Syrian rebel fighters, saying it will fuel more violence in the nearly two-year war.

Despite the tensions, Obama vowed in his State of the Union address in February to work with the Kremlin to reduce both Russian and American stockpiles of nuclear weapons.

Relations between Moscow and Washington have been especially harmed by the Obama administration's criticism of Moscow's deteriorating human rights record under Putin.

There has also been tension over adoptions of Russian orphans by US nationals in recent weeks.

The spat started after the US Congress passed a bill last year targeting Russian officials with sanctions over the prison death of Russian lawyer Sergei Magnitsky.

Russia retaliated with a ban on all US adoptions, saying Russian children in the United States were abused and even murdered by their adoptive parents.

One of Obama's major foreign policy achievements of his first term was a "reset" of relations with Russia engineered with former president Dmitry Medvedev, but the return of Putin has soured the mood.

-AFP/ac



Read More..

Tips for increasing the longevity of your Mac



Regardless of whether you purchase it new, refurbished, or used, your Mac is likely a sizable investment that you might wish to keep running for as long as possible, not only because of the cost factor but also because of the time and effort it would take to migrate your data and workflow to a new system (even though Apple has made the latter quite easy if you have proper backups).


There are many ways your
Mac can get damaged, become outdated, or otherwise experience greater wear and tear from use that can shorten its lifespan. In most cases these will only have a little (if any) effect on the system but may help keep the system running longer and without problems or capacity limitations.


The physical


The first part of your Mac is the physical machine, which includes the logic boards and controllers, screen, keyboard, mouse, and other similar components. While peripherals like the keyboard and mouse can be replaced, it may be harder to do so for the components in the machine.


The machine itself
Of the considerations for ensuring a long-lasting Mac, the first begins before you even purchase it where you are offered options to configure your system. Apple offers a number of configure-to-order details including RAM capacity, processor speeds and types, and hard-drive size.




Apple RAM offerings

Apple periodically updates its maximum RAM offerings.



(Credit:
CNET)


While for the most part these should be relatively comparable, the faster you go and the more capacity you give the system the longer you will be able to use it before you need to upgrade. For RAM considerations I've usually recommended people get the minimal from Apple and then upgrade at a later date to save money; however, for some of Apple's systems such as the
MacBook Air and Retina
MacBook Pro this is not possible, so purchasing the ones with the most built-in RAM is recommended.

These same recommendations extend to hard drives and processors, especially for systems like the iMac that cannot be easily serviced (if at all in some cases). If you are offered the option to get a Core i5 versus a Core i7 processor for your system, then if you can afford it I would recommend the upgrade (which sometimes comes with the benefit of a faster graphics processor as well). Likewise, consider an SSD over Apple's Fusion Drive, and a Fusion Drive over a conventional hard drive for increased speed.

For hard drives, capacity is not so much an issue as you can always use an external storage device if needed, but the speed of your internal drive that holds your OS and applications is one of the biggest data bottlenecks in the whole system so buying the fastest one will keep your system running in top gear.

Power source care
Of the remaining details, perhaps one of the more common items to be damaged is the system's power supply, which being subject to relatively harsh and noisy wall power circuits can potentially break down over time. In addition, the external power supply for laptops may experience a greater degree of physical abuse that can eventually lead to a failure.



Apple power adapter

Apple's power adapters may be subject to wear with use, or be replaced with newer options.



(Credit:
Apple)

For power supplies, continued use is not too much of an issue, but surges and sudden power failures may disrupt the system and result in data corruption or broken components (hard drives or the power supply itself), so be sure to help protect your system by either turning it off when not in use, at least using a surge protected power strip, or better yet use a Uninterrupable Power Supply (UPS).

For laptop users, consider purchasing a second power supply for your system, especially since as new technologies become available the older ones may be phased out. For example, Apple recently released new Lightning connectors for iOS devices and a new MagSafe connection for its laptops. While the older MagSafe connections should be available for a while, over time they will be harder to find.

In addition to the power supply for laptops, be sure to take proper care of its batteries. For the health of the batteries, the best practice is to use them regularly (often enough to run through a full charge cycle about once per month) to help prevent dead spots that can reduce their overall capacity. Additionally, do not use them in extreme temperatures, and if you store system for a long period of time, be sure to charge the battery until it is half-full before doing so.

Battery calibration is not a necessary step for its health; however, it can be done regularly as a way to ensure the battery is regularly used.

Avoid abuse
While it might be needless to say, avoiding physical abuse of the systems is another easy way to increase the longevity of Apple's systems. The aluminum Apple uses in its systems is durable and quite protective, but is not indestructible. If you travel with your system then consider using a case or cover that will help protect it, and also consider using a properly padded bag even if you use a case.

In addition to transport security, consider a keyboard slip cover for laptops to help protect the keys from wear. The keys on a MacBook keyboard have a slightly matte finish to them out the factory door, but over time with you pressing them the keys will become shiny as you wear down the top surface. In some cases the wear can be great enough so the symbol disappears making it difficult to type. One option instead of a slip cover is to get a set of transparent stickers to place on the keys that are showing any wear.

Lastly, be kind to the ports on your Mac. When peripherals are attached, the ports can be subject to torquing that in extreme conditions or over time may result in it no longer working, not being able to hold the inserted connection firmly, becoming mangled, or even being subject to shorting out and frying a component of the motherboard. This is easily done by inserting the incorrect plug into a port, so avoid fishing around blindly to insert a connection by feel.

Be aware of your touch
I've often noticed people hammering on keys when typing, or mashing a key or two in frustration, and while the keyboard ought to be able to take such treatment, it can only lead to faster wear. If your system is not working properly then clicking or tapping harder or faster will not fix the situation, and will only increase the chance of damaging the system. In some cases multiple presses during a frustrating hangup can even confuse the system more and make the matter worse.

In addition to using a gentle touch on the keyboard, avoid touching your display, especially if you have one with a matte finish. Apple's glossy glass displays are decently protected from touching, but matte displays can easily be poked and damaged.

Ensuring you have clean hands when using your system is another way to help increase its longevity. Grime and oils on hands can help wear down the surface of keys or simply contribute to dirt that gets into the keyboard and can potentially block a key or two from working.

Clean your system
Dirt and grime on a system will not necessarily hurt it, but over time it can become unsightly and may build up enough to cause a problem or two, so be sure to gently wipe away any grime in keyboards or around the edges of your display, but more importantly be sure the ports and vents are clear of dust or obstructions. It is very easy for dirt to get into these ports, and if you press a connection into them then you only jam the dust in farther, so be sure to check your data ports and clean them out.

For the vents on the system, use canned air or a vacuum cleaner to remove any dust that you see in them, as any reduction in the efficiency of these vents may lead to a system that more easily overheats. For Mac Pro systems, you can easily remove the cover and use canned air to blow around the fans and heat sinks to clear any dust accumulation (do this outside, as billowing clouds of dust can be irritating to live with).

Avoid hard shutoffs
Finally, unless your system is experiencing a crash or severe hangup, then avoid holding the power key to shut it off or unplugging it as this sudden interruption can be damaging to the system's logic boards and components. If you are finding the system is regularly crashing then try addressing this problem instead of resorting to always shutting your system down by yanking the plug or pressing the power key. There are numerous resources for helping find the source of hangs and crashes in OS X, including Apple's retail stores and its online discussion forum.

The logical

Besides taking care of your system's physical condition, consider lengthening its usefulness by maintaining its capabilities, security, and stability. Doing this not only involves the operating system and software that you use, but also considers any components and upgrades that are available for your system.



Software Update

Software Update is available in the Apple menu.



(Credit:
Screenshot by Topher Kessler/CNET)

Upgrade software
While it can be argued that the features and details in the latest release of OS X may not suit your needs, at least be sure to update your current OS installation to its latest version, as this will ensure the best security and fixes to problems that people have been experiencing. Updating a system can easily be done by going to the Apple menu and choosing Software Update, where the system will check for and then install new versions of operating system software or Apple's supplied programs like iTunes, iPhoto, or iWork.

In addition to Apple's software, be sure to update any third-party software you have installed and keep those at their latest versions, not only to help maintain security but also to ensure compatibility with OS X. Most programs offer built-in updating features similar to Apple's software-update, and can be configured to check for updates on launch or on a regular schedule, so consider setting these up along with doing so for Apple's Software Update to ensure you are running the latest versions of all of your software.

Upgrade hardware
As you use your system and install new releases of OS X and upgrades to your software, you may find that the new software demands more out of your system and can result in a slower system. Therefore, as mentioned above for new systems consider the faster upgrades at purchase, but for older and used systems you can still consider similar upgrades to breathe new life into it and get you up and running faster without needing to purchase a new computer.

The two most common options are to upgrade your system's RAM capacity to give your processor and applications adequate "desk space" in which to perform computations. While 8GB to 16GB of RAM should be adequate these days for most uses, in general the more RAM the better so get as much as you can afford. Just be sure to fully test your RAM once you have installed it to ensure it is working correctly, as bad RAM can be a major source of crashes and data corruption.



OWC Data Doubler

Other World Computing's Data Doubler offers a convenient way to put two drives in an older MacBook system.



(Credit:
Topher Kessler/CNET)

Also consider a faster storage medium such as an SSD in place of a conventional hard drive. For laptop systems you can replace older and unused optical drives with a secondary internal drive, giving yourself the options for increased capacity, dual-drive redundancy, an internal backup, options for implementing Apple's "Fusion" drive, and more.

To give a rough estimate, an 8GB RAM upgrade, a 240GB SSD, and an optical drive conversion kit for an old 2008 MacBook Pro will cost about $300 to $400 and will at times more than double the speed of your old system.

Finally, for Mac Pro systems you can upgrade the graphics card for increased graphics performance. While the offerings for this are relatively limited and a touch expensive, if needed the option to do so is out there.

Take care of slowdowns and other problems
Over time and depending on how it's used a Mac can develop odd problems or two that can lead to slowdowns, crashes, hangs, and other odd behaviors that can be a real burden to deal with. Sometimes the issues can be quite difficult to track down, but in general if you are experiencing odd problems there are some approaches you can quickly take to clear them up or at least help identify where the root of the problem may be.

To do this, first try running a general maintenance routine on your system to clear caches and other temporary items that if corrupted may lead to odd problems. Additionally, you can run through a general troubleshooting routine to help identify if the problem is systemwide, because of a third-party program or two, or rooted in your user account, which can greatly help if you need to communicate the problem to others for help.

Lastly, Apple's hardware test suite should be available to most Mac systems and can be used to test the system's RAM and internal sensors to see if a problem is occurring.



Time Machine preferences

Time Machine offers options to back up to more than one drive.



(Credit:
Screenshot by Topher Kessler/CNET)

Back up regularly
A final consideration for increasing your Mac's longevity is to make continual backups. Your Mac's hardware is only half of the story, and your Mac experience lies mainly in your documents, settings, installed applications, and the entirety of your system's software environment. With proper backups, should an irrecoverable problem happen to your system then you can easily restore or migrate your data from the backup to a new system and be up and running as if nothing ever happened (minus the cash for a new system, of course).

Anything missed?
Do you have any tips or suggestions on keeping your Mac running the longest? If so then let us know in the comments.



Questions? Comments? Have a fix? Post them below or !
Be sure to check us out on Twitter and the CNET Mac forums.

Read More..

Black Hole Spins at Nearly the Speed of Light


A superfast black hole nearly 60 million light-years away appears to be pushing the ultimate speed limit of the universe, a new study says.

For the first time, astronomers have managed to measure the rate of spin of a supermassive black hole—and it's been clocked at 84 percent of the speed of light, or the maximum allowed by the law of physics.

"The most exciting part of this finding is the ability to test the theory of general relativity in such an extreme regime, where the gravitational field is huge, and the properties of space-time around it are completely different from the standard Newtonian case," said lead author Guido Risaliti, of the Harvard-Smithsonian Center for Astrophysics (CfA) and INAF-Arcetri Observatory in Italy. (Related: "Speedy Star Found Near Black Hole May Test Einstein Theory.")

Notorious for ripping apart and swallowing stars, supermassive black holes live at the center of most galaxies, including our own Milky Way. (See black hole pictures.)

They can pack the gravitational punch of many million or even billions of suns—distorting space-time in the region around them, not even letting light to escape their clutches.

Galactic Monster

The predatory monster that lurks at the core of the relatively nearby spiral galaxy NGC 1365 is estimated to weigh in at about two million times the mass of the sun, and stretches some 2 million miles (3.2 million kilometers) across-more than eight times the distance between Earth and the moon, Risaliti said. (Also see "Black Hole Blast Biggest Ever Recorded.")

Risaliti and colleagues' unprecedented discovery was made possible thanks to the combined observations from NASA's high-energy x-ray detectors on its Nuclear Spectroscopic Telescope Array (NuSTAR) probe and the European Space Agency's low-energy, x-ray-detecting XMM-Newton space observatory.

Astronomers detected x-ray particle remnants of stars circling in a pancake-shaped accretion disk surrounding the black hole, and used this data to help determine its rate of spin.

By getting a fix on this spin speed, astronomers now hope to better understand what happens inside giant black holes as they gravitationally warp space-time around themselves.

Even more intriguing to the research team is that this discovery will shed clues to black hole's past, and the evolution of its surrounding galaxy.

Tracking the Universe's Evolution

Supermassive black holes have a large impact in the evolution of their host galaxy, where a self-regulating process occurs between the two structures.

"When more stars are formed, they throw gas into the black hole, increasing its mass, but the radiation produced by this accretion warms up the gas in the galaxy, preventing more star formation," said Risaliti.

"So the two events—black hole accretion and formation of new stars—interact with each other."

Knowing how fast black holes spin may also help shed light how the entire universe evolved. (Learn more about the origin of the universe.)

"With a knowledge of the average spin of galaxies at different ages of the universe," Risaliti said, "we could track their evolution much more precisely than we can do today."


Read More..

Sequester Begins But Govt. Shutdown Looks Unlikely





Mar 1, 2013 4:13pm


ap obama boehner split nt 121231 wblog Sequester Begins But Government Shutdown Looks Unlikely

Andrew Harrer/Bloomberg/Getty Imag


It may not be readily obvious from the blizzard of news out there today on the “sequester,” but a government shutdown became significantly less likely today, even as the automatic budget cuts barreled ahead toward reality.


What happened? Both sides – Republicans and Democrats – basically seem to have agreed that as they will continue to fight out the $85 billion in automatic budget cuts starting to take effect today, they will not allow that disagreement to jeopardize full funding for the federal government. That funding is now scheduled to expire March 27.


RELATED: President Obama, Congressional Leaders Fail to Avert Sequester Cuts


After the White House meeting this morning, House Speaker John Boehner said he would have the House vote next week to fund the full government – what’s known as a “continuing resolution.”


Boehner: “I did lay out that the House is going to move a continuing resolution next week to fund the government past March 27th, and I’m hopeful that we won’t have to deal with the threat of a government shutdown while we’re dealing with the sequester at the same time. The House will act next week, and I hope the Senate will follow suit.”


READ MORE: 6 Questions (and Answers) About the Sequester


Boehner’s office provided this read-out of the meeting: “The president and leaders agreed legislation should be enacted this month to prevent a government shutdown while we continue to work on a solution to replace the president’s sequester.”


The president was asked at his mini-news conference whether he would definitely sign such a bill, even if it keeps government going at the new, lower spending levels as this fight is resolved (or not).


RELATED: 57 Terrible Consequences of the Sequester


Obama’s response: “With respect to the budget and keeping the government open – I’ll try for our viewing audience to make sure that we’re not talking in Washington gobbledygook. What’s called the continuing resolution, which is essentially just an extension of last year’s budget into this year’s budget to make sure that basic government functions continue, I think it’s the right thing to do to make sure that we don’t have a government shutdown. And that’s preventable.”


So even as we moved toward the brink of sequester, the nation’s leaders took a step back from another, much larger cliff.



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