Showing posts with label Risk. Show all posts
Showing posts with label Risk. Show all posts

Mac Flashback Trojan: Find Out If You’re Infected and What to Do About It


Mac Flashback Trojan: Find Out If You’re Infected and What to Do About It - Apple computer users may think they have nothing to worry about when it comes to contracting viruses and malware online, but a Russian antivirus company is reporting that 600,000 Macs are currently infected with a nasty trojan horse virus called “Flashback.”

Doctor Web issued a report on Wednesday that said 550,000 computers with Mac OSX have picked up the virus. An analyst at Doctor Web later sent a tweet noting that 600,000 Mac computers have actually been infected and some — about 274 — are actually based in the same city as Apple’s headquarters, Cupertino, Calif. About 57% of the infected Macs are said to be in the U.S. and 20% are based in Canada.


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Flashback was originally discovered in September 2011 and was designed to disguise itself as an Adobe Flash Player installer, using Flash player logos. After installing Flashback, the malware seeks out user names and passwords that are stored on your Mac.

“There are no visible symptoms for this Mac virus, except for making sporadic connections to unknown servers that can be only seen in the Firewall logs, if any firewall is in place,” Boris Sharov, CEO of Doctor Web, told Mashable. “The symptoms also depend on the payload that may be downloaded upon the command from the control server.”

Although Sharov said it’s difficult to prevent contracting the virus, it’s not impossible.

“The bad thing about these types of infections is that it is hard to prevent them without disconnecting one’s computer from the Internet all together,” Sharov said. “We advise Mac users to strictly follow Apple’s security updates. Don’t neglect them.”

To protect your computer from contracting the virus now, download Apple’s latest software update. Click the Apple logo located in the top-left section of the desktop and select Software Update. Install all of the available updates as soon as possible.

“Unfortunately, the number of infected computers is still increasing,” Sharov said. “This means that users are careless about security patches, and they shouldn’t be.”

Sharov also advised Mac users to install anti-virus software, even though many think it’s unnecessary to do so for Apple computers.

Although symptoms are minimal, there are a few things you can do to see if you are infected. Sharov suggests the following steps (note: we posted the html below as an image so you could read the full code):

  • Go to the Mac’s Library folder and select LaunchAgents. There should be several files in that catalog.
  • Search all files in the folder for the following contents:
    Mac Flashback HTML Code
  • Look for the file name specified in the ProgramArguments key. This is where the file BackDoor.Flashback.39 would be located. If the file is empty, it means that none of your programs are meant to start automatically. It also means that you are not infected.
  • To see if this is the trojan, scan it with anti-virus software for Mac OS or upload it to VirusTotal website.
  • To cure the machine, delete both files.
  • Removing the files should restore your computer.

Instead of following those steps, Sharov said you could also run a scan by downloading the free Dr. Web Light from the Apple App Store.

The news comes after Apple continues to position OS X as a more secure alternative to other computer makers.

“A Mac isn’t susceptible to the thousands of viruses plaguing Windows-based computers,” Apples notes on its homepage. “That’s thanks to built-in defenses in Mac OS X that keep you safe, without any work on your part.” ( mashable )

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July 9: Doomsday for Your PC or Mac If It Has This Malware


July 9: Doomsday for Your PC or Mac If It Has This Malware -There's a trojan out there that tricks computers -- both PCs and Macs -- into redirecting all their Internet traffic through malicious servers. Even though the trojan's creators have been stopped and arrested, millions of PCs could still be infected. For those machines, the Internet will cease to exist on July 9.

The reasons are technical, and they go back to 2007. That was the year the trojan first surfaced, according to PC World. The malware, which can infect both Windows and Mac computers, essentially creates a botnet by changing how the machine accessed DNS.



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DNS (Domain Name Service) is how the web organizes its addresses. It's the system that lets you simply type in "mashable.com" instead of some kind of long and incomprehensible IP address filled with letters, decimals and numbers. Your computer talks to a DNS server operated by your Internet Service Provider (ISP) to find all the websites that you visit every day.

The trojan, called DNS Changer, redirects your computer's DNS queries from your ISP's server to one created by the trojan's creators -- essentially hijacking all Internet traffic from your machine. That way, the bad guys can send you to hacker-created websites filled with ads whenever they want.

The good news: The FBI shut down the operation, called Rove Digital, last November when they arrested six Estonian nationals behind the botnet and shut down their malicious servers. To ensure infected computers wouldn't be cut off from the Internet entirely, the FBI set up its own DNS servers.

The bad news: Those friendly servers will soon be shut down. They were originally going to run only four months, but a judge ordered an extension of their operation until July 9 since it's estimated that hundreds of thousands of computers are still infected.

If a machine is still has the trojan and tries to access the web on July 9, it won't be able to access anything. With Internet access cut off, it would be very inconvenient to download and install anti-virus software.

If you suspect you're infected, go to the DNS Changer Check-Up website, which should let you know if your computer's DNS is working properly. Should your machine test positive, an organization called the DNS Changer Working Group has a list of anti-virus tools for cleaning it up. The FBI has an even more comprehensive to-do list.

Even with the extra time and cleanup tools, however, it's likely a few machines will slip through and not get the update by July 9. What do you think should happen to reach those computers in time? Sound off in the comments. ( Mashable )

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Why heavy coffee drinkers may have a lower risk of diabetes


Why heavy coffee drinkers may have a lower risk of diabetes - Research shows that heavy coffee drinkers have a lower risk of developing Type 2 diabetes, and now scientists in China may have discovered why.

Prior studies have shown that people who drink four or more cups of coffee a day have a 50 percent lower risk of Type 2 diabetes, and that every extra cup of coffee brings another decrease in risk of almost seven percent.

Researchers from Huazhong University of Science and Technology, Wuhan University, and Wuhan Institute of Biotechnology in China have cited the protective benefits of compounds in coffee that inhibit a substance called human islet amyloid polypeptide (hIAPP), which has been linked to diabetes, stated science and health news website Science Daily last week in a report on the new study. The study appears in the latest issue of the Journal of Agricultural & Food Chemisty.


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Why heavy coffee drinkers may have a lower risk of diabetes


Last year, a Harvard University study in the US found that drinking coffee, either decaf or regular, can ward off the risk of deadly prostate cancer. Another recent study found that women who drank five or more cups of coffee a day were 57 percent less likely to develop estrogen receptor-negative breast cancer.

More good news for coffee lovers? Coffee has also been shown to improve brain function in mice studies, with researchers probing the possibility of using coffee as a treatment for people with Alzheimer's disease.

Still health experts don't recommend too much coffee. The US-based Mayo Clinic suggests no more than two to four cups a day, since more than that can cause insomnia, upset stomach, and anxiety. ( AFP )

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PMS link to baby blues


PMS link to baby blues. Pre-menstrual syndrome and postnatal depression are closely related to the 'cold turkey' experienced by addicts trying to give up drugs, according to research.

Scientists have discovered that all three conditions are caused by the same chemical change in a part of the brain which deals with anxiety and stress. Their findings could lead to new treatments for PMS and baby blues, as well as cures for hangovers and aids for addicts trying to conquer their habit.

The common factor is a chemical 'messenger' in the brain called GABA, which dulls circuits responsible for anxiety and stress. GABA is triggered by narcotics and tranquillisers. But researchers found it is also affected by progesterone, the natural steroid produced during pregnancy and when women reach the end of a monthly cycle. The hormone enhances the effect of GABA in the brain, helping it to calm and soothe.

But at the end of pregnancy and just before menstruation, levels of progesterone suddenly drop. At these times GABA is unable to work properly, triggering the symptoms of stress, anxiety and mood swings associated with PMS and postnatal depression. Because drugs act on the same part of the brain, cold turkey has very similar side effects.

Researchers at the Allegheny University of the Health Sciences in Philadelphia investigated the inner workings of the brain by giving rats progesterone for several weeks before then suddenly withdrawing it. They found that GABA immediately lost some of its calming properties and the rats showed symptoms of anxiety. According to the experts, the sudden withdrawal of sedatives such as alcohol and drugs has exactly the same affect.

If science can find drugs to boost the effects of GABA, they could be used to ease the tension, stress and mood swings of PMS and the symptoms of postnatal depression and hangovers.

Can Prozac beat PMS?

For two weeks every month, Shelley Machin's life was 'sheer hell.' The mother of two crouched weeping on the sofa, unable to answer the door, make dinner or look after her baby son, Tom. Then her moods would swing so wildly that Shelley would scream and throw things at her husband Tony.

'I was a monster,' says Shelley. 'Every month, before my period, I was convinced I was going mad. I'd repeat sentences over and over again, break crockery and suffer panic attacks that were so bad I thought I was having a heart attack. My body ached so much I thought I would explode. And then, two days after I started bleeding, calm would descend again.'

Shelley is one of the 1.5 million women who have such severe PMS that it affects their health and disrupts life with work, family and friends.

For some of these, a new and controversial medical development could spell the end to their suffering.

Prozac is the first prescription medication to be approved for the treatment of PMS. Professor Shaughn O'Brien, a consultant gynaecologist at North Staffordshire NHS hospital, has been prescribing Prozac for over four years. 'I would say that 80 per cent of my patients with moderate to severe PMS have been helped by Prozac,' he says.

Prozac is one of a class of anti-depressants called SSRI's that work by increasing the amount of serotonin, the 'feel-good hormone' in the brain. The recent studies, conducted in the U.S. and by University College, London, suggest the drug's efficiency in alleviating both emotional and physical symptoms of PMS.

'Traditionally, PMS was thought to be caused by a hormone imbalance,' says Professor O'Brien. 'But it's now been established that hormone levels are normal and don't fluctuate throughout the woman's cycle.

'Basically, the body is reacting in an abnormal way to normal hormone levels. This reaction is thought happen in the brain, rather than the body, and to to involve the neurotransmitter serotonin. This is why Prozac, which inhibits the reuptake of serotonin, is effective.

'The amazing thing about these studies is that even physical symptoms such as bloating and sore breasts are alleviated by SSRIs,' says O'Brien. 'At present the reason is not clear. It's probably to do with our perception and response to pain. Because our nerve impulses are modified by serotonin, it influences the way we feel pain.'

Shelley was started on 20mg of Prozac (the lowest dose) every morning. 'For the first few days, I felt a bit nauseous, but this soon wore off, and within six weeks I noticed an incredible improvement,' she says.

'I now no longer feel the world's coming to an end for two weeks every month. I'm less anxious, so much calmer and, most of all, nicer to my husband and the children. My body doesn't ache the way it used to, and I sleep better. Sure, I still have my off days, but I don't know if these are related to my period or not. Prozac has changed my life.'

However, not all the medical profession holds with this view of Prozac as a 'miracle drug'. There are fears that patients turn to a quick-fix pill too quickly, without dealing with other lifestyle issues.

'We see Prozac as a last resort, not a first remedy,' says Christine Baker of the National Association for Pre-Menstral Syndrome.'There are many other non-prescription treatments that should be pursued first. Women should alter their lifestyle to avoid stress, eat a diet rich in magnesium and low in salt and sugar and take regular exercise. Evening Primrose Oil, to soothe breast pain, can also help.'

Consultant gynaecologist, Dr Katherina Dalton, the first doctor to describe PMS as a syndrome in 1953, is also sceptical. 'In my opinion, an SSRI cannot help physical symptoms. The correct treatment is to treat with the hormone progesterone, combined with a three-hourly diet high in carbohydrate. If there are long gaps between food, the blood sugar falls, and symptoms worsen.'

Dr Dalton also feels that the world of medicine has moved on since Prozac. 'There are now far more effective SSRI's, such as Seroxat, with far fewer side-effects,' she says. ( dailymail.co.uk )



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Years of Experience But No Degree


Years of Experience But No Degree. Seven Ways to Beat the Job Search Pitfall. After years on the job, you feel you've definitely platueaued and think it's time for a change. There's one catch: you don't have a college degree. You graduated from the University of Life and have plenty of professional experience to show for it, but no formal degree. Are you still marketable?

George C. found him in that very position last year. After several years as a designer and art director, he was laid off after budget cuts. He seemed to be the perfect fit for one particular employer, but the company required a degree for the position. Thus, he was passed over even though the hiring manager expressed regrets. A few months later and the hiring manager contacted him. The original, "degreed" candidate who was hired didn't work out and they wanted to extend the job to George on a trial basis. Today, he's a full-time employee with that company.

If you find yourself with tons of job experience but hitting the "no degree" dead end, there are some things you can do to accentuate the positive.

1. Let Your Experience Do the Talking

Make sure you highlight your professional accomplishments, technical skills, results and industry knowledge on your résumé. These all help to demonstrate your expertise in your field. Also, try calling attention to any leadership positions you've held, including those with community, volunteer or military organizations, suggests career counselor Susan Guarneri.

2. Articulate Association Activity

Take advantage of career development offerings through your industry association and become active in the organization. "Go to local chapter meetings and join high visibility committees, such as membership, community outreach and publications," Guarneri advises. Not only will this give you additional skills and experience, it will help you make a name for yourself in your field, further enhancing your qualifications.

3. Include Glowing References

Include references from respected colleagues or high ranking industry professionals. These letters of recommendation will speak volumes about your personal character and professional standing. Don't wait for the employer to contact you, but include them in your initial application.

4. Show Alternative Learning

Guarneri stresses it's important to show that you are interested in professional development and continued learning. List any certification programs and professional seminars you have completed. These additional credentials demonstrate your intent to keep your knowledge and skills up-to-date.

5. Apply Experience to a Degree

Search nearby colleges and universities for programs related to your line of work. Many colleges have programs that offer course credit with proof of proficiency in a particular area. It's a terrific way to gain college credit for real life work experience.

6. Earn a Degree

Higher education caters to working professionals in a number of ways. "A lot of traditional academic outlets have online components," Guarneri says. Online courses allow you to work around your schedule. Also look into fast-track programs for adults which allow you to complete a degree at an accelerated pace, usually with less classroom time. There's also the College Level Examination Program assessment to test out of specific courses, while still earning credit for those classes.

7. Show Education In Progress

If you are in the process of earning a degree, make sure you note that on your résumé, along with an estimated date of completion. ( msn.com )


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Bad Credit Can Blacklist Job Seekers


Bad Credit Can Blacklist Job Seekers. Your credit rating. Most people only worry about it when they're applying for a mortgage or credit card. But did you know your bad credit rating could keep you from getting the job you want?

If you're applying for a high-security job or a position with heavy financial responsibilities, the way you have handled your personal finances can color your chances of being hired in these sensitive, accountable situations.

Why is it anyone's business if you have a little 'bounce' in your checks?

Credit rating and job performance -- what does one have to do with the other? Apparently, plenty. Clifton O'Neal at TransUnion credit reporting agency in Chicago notes: "Studies have shown a correlation between how people manage personal affairs and their job performance, especially if they're in charge of financial information."

It's a fact: Companies are going to snoop into your background.

Most employers routinely perform standard background checks on job candidates. But some companies are taking inspection of potential employees one step further to include their credit history.

At Exxon Mobil, everybody gets a background check, according to the company's media relations manager Mark Boudreaux. Credit checks, however, "are reserved for individuals who will have a job that has a significant financial component."

The criteria for credit reporting is echoed by Rod Griffin of Experian credit information firm. "Typically, when we see businesses requesting credit checks it's for money management positions, such as comptroller and financial planning. Or those who will be conducting security functions."

Damage control need not involve a deal with the devil.

So what can you do if your credit is less than stellar, but you have your eye on that accounting position? "It's important for the applicant to be upfront," O'Neal says. "Let them know, 'Here's what you'll find and here's how I'm correcting it.'"

There are legitimate reasons for a credit rating slump. Perhaps you went through a divorce or were a victim of identity theft. "That's why it's a good idea when you're applying for a position to pull a copy of your credit report so you know what's in it ahead of time and can verify that the information contained in the report is correct," O'Neal suggests.

Griffin agrees: "It is highly recommended for everyone to get a full credit report every year. You can get one free every 12 months. You should know what is in your credit report, regardless of whether you're applying for a job or not, so you can spot any irregularities or catch potential cases of identity theft."

You don't feel like the emperor in his "new clothes."

If the thought of strangers poking around in your personal affairs leaves you feeling a bit exposed, remember, you always can refuse such scrutiny. Not one bit of information will be given to anyone requesting it without your signed approval. "So as a job applicant, read through everything before you sign," O'Neal advises.

"Credit reporting agencies take out any info that could interfere with equal employment, such as age, gender, and spousal information. And all account numbers are omitted or truncated for security purposes," Griffin adds. ( msn.com )


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Are You a "Red Flag" Candidate?


Are You a "Red Flag" Candidate?. A red flag is a warning signal, something that provokes an irritated reaction or demands attention.

Hiring managers everywhere look for certain red flags on an application, in responses given during the initial telephone interview, and on site interviews to potentially screen out a candidate in the early stages of the hiring process.

To be certain that you will get past the initial screen, be aware of the following common candidate red flags:

1. No Home Address Telephone Number or E-mail Address

If they can't find you, they can't hire you. Without basic information and an easy way to contact you once interest is established, your chances virtually disappear.

2. Time Lapses Between Jobs

If the time between past positions is wide, you will have some explaining to do. Be certain you're honest and provide all necessary information on gaps in employment up front. It is certain the new company will want to know.

3. Negative or Vague Reasons for Leaving Past Employment

Immediately, the worst case scenario comes to the mind of the hiring manager when you are negative or vague with information about past departures. There is no room for sour grapes. Instead, keep a positive outlook and give details around leaving your previous positions.

4. Inconsistent Answers

You may be asked the same question in a hundred different ways, so your responses to similar questions must be consistent at every step of the hiring process. Inconsistent answers or waffling leave a negative impression in the mind of the interviewer and will most likely eliminate you.

5. Unrealistic Expectations

Whether you want a certain percentage of travel, desire a particular commuting distance, have compensation issues, or long for relocation, unrealistic expectations on your part can lead to disaster and a quick exit. Know what you are willing to do and what your bottom line compensation number is before you get involved with an interviewing process.

6. Lack of Preparedness

Do your homework. Research the company online and develop intelligent questions prior to any interview. Prepare and impress the hiring managers. Take it seriously, and they will take you seriously.

7. No Career or Personal Goals

Where do you see yourself in two years? How about five years? Have a clear direction around both business and personal goals before entering an interview. Include action plans and rewards along the way. Share this information where appropriate. This shows the hiring manager you are focused, prepared and have a specific direction for your career. Share your plan.

8. Negative or Reactionary Attitude

It's all about P.M.A., baby! Possess a "positive mental attitude." Smile, provide a firm handshake and use eye contact. When you react to information in a negative way, you won't get far. Don't dictate what must be done; simply gather information and insight to keep the process moving in a positive direction. If negative information is shared with you, don't react, simply write it down to discuss at a later date. ( msn.com )


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Six Hot Shots Who Made It


Success Without a College Degree?. Six Hot Shots Who Made It. Many think the only way to succeed is through education. While piling on the degrees can earn you piles of dough -- and debt -- it's not the only option.

Some of today's most successful people don't have a college degree. But what they lack in academic credentials, they make up for in tenacity, brains, guts and strong business sense.

Richard Branson

In 1970, Richard Branson founded Virgin as a mail order record retailer, and not long afterward he opened a record shop in London. Two years later, the first Virgin artist, Mike Oldfield, recorded "Tubular Bells." Since then many household names, including Ben Harper, Fatboy Slim, Perry Farrell, Gorillaz, Lenny Kravitz, Janet Jackson and The Rolling Stones have helped to make Virgin Music one of the top record companies in the world.

Branson sold the equity of Virgin Music Group -- record labels, music publishing and recording studios -- in 1992 in a $1 billion deal, but he remains chairman of Virgin Group, which today includes Virgin Atlantic, Books, Games, LifeCare, Limousines, Megastores and Hotels.

Barry Diller

Barry Diller started his career in the mail room of the William Morris Agency after dropping out of UCLA after one semester. He was hired by ABC in 1966 where he created the ABC Movie of the Week, pioneering the concept of the made-for-television movie.

At age 32, he became president of Paramount Pictures, which produced a string of successful television shows (Laverne and Shirley, Taxi, Cheers) and feature films (Saturday Night Fever, Raiders of the Lost Ark, Beverly Hills Cop) under his helm. From 1984 to 1992, he was chairman and CEO of Fox Studios and was responsible for creating the Fox Broadcasting Company. Today, Diller is the chairman of Expedia and the chairman and CEO of IAC/InterActiveCorp, which includes Citysearch, Evite, Home Shopping Network, Lending Tree, Match.com and Ticketmaster .

Matt Drudge

Pundit, blogger and radio personality Matt Drudge is best known as the proprietor of the Drudge Report Web site. "The only good grades I got in school were for current events," he has said of his education. Drudge opted out of college and floated among a number of odd jobs including convenience store clerk, book salesman and grocery store sales assistant.

In 1989, he moved to Los Angeles and took a job in the gift shop of CBS studios, eventually working his way up to manager. The inside scoop he learned while in this position was allegedly part of the inspiration for founding his gossip rag The Drudge Report. The tabloid made gained notoriety when it was the first to break the news of a relationship between White House intern Monica Lewinsky and President Bill Clinton in 1998.

Janus Friis

Named to Time Magazine's 2006 list of 100 most influential people, Janus Friis holds no formal education. He worked at the help desk of CyberCity, one of Denmark's first ISPs and later worked at Tele2, the leading alternative consumer oriented pan-European telecom operator. It was at Tele2 where Friis met Niklas Zennström, with whom he co-founded the file-sharing application KaZaA and Skype, the peer-to-peer telephony application. In early 2006, Friis and Zennström sold Skype to eBay for $2.6 billion.

Rachael Ray

Rachael Ray's career started at Macy's department store, first at the candy counter and then as the manager of the fresh foods department. Ray quickly followed with stints in gourmet markets and restaurants in New York. At gourmet food market Cowan & Lobel, she began a series of cooking classes -- 30 Minute Meals. Those classes became so popular that she was soon doing weekly segments for the evening news.

Today, Ray is an Emmy-winning television personality who hosts a nationally syndicated talk show and four different programs the Food Network, publishes her own magazine, and has written multiple cookbooks.

Jeff Valdez

Named one of AdAge's Marketing 50 in 2005, Jeff Valdez grew up the youngest of nine children in a housing project in Pueblo, Colorado. As a young adult, he moved through several jobs and ended up as a drummer with a lounge band called Wildfire. Valdez later returned to Colorado after about 10 years of touring and opened a comedy club where he did stand-up. In 1990, he threw his hat into the political ring and made a failed bid for mayor of Colorado Springs. But in 2004, he launched Si TV, the first all-English language network targeting a Hispanic audience.

Anna Wintour

Best identified by her trademark sunglasses and pageboy hairstyle, Anna Wintour is an icon of the fashion world. She reportedly attended North London Collegiate School, but never graduated. She started in 1970 working in the fashion department of Harpers and Queen in London. In 1976, she was named fashion editor of Harper's Bazaar, followed by a brief stint at New York Magazine, three years as creative director of American Vogue, and finally named editor of British Vogue in 1986.

In 1998, she became editor-in-chief of American Vogue. Wintour's work style is so notorious, the novel "The Devil Wears Prada" and its subsequent motion picture are said to be based on her. In recent years, she's focused on many philanthropic endeavors including raising more than $10 million for AIDS, putting Vogue's support behind women-owned businesses in Kabul, Afganistan, and promoting various post-9/11 campaigns. ( msn.com )


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Maine Legislator Wants Cell Phones to Carry Brain Cancer Warning


Maine Legislator Wants Cell Phones to Carry Brain Cancer Warning A Maine legislator wants to make the state the first to require cell phones to carry warnings that they can cause brain cancer, although there is no consensus among scientists that they do and industry leaders dispute the claim.

The now-ubiquitous devices carry such warnings in some countries, though no U.S. states require them, according to the National Conference of State Legislators. A similar effort is afoot in San Francisco, where Mayor Gavin Newsom wants his city to be the nation's first to require the warnings.

Maine Rep. Andrea Boland, D-Sanford, said numerous studies point to the cancer risk, and she has persuaded legislative leaders to allow her proposal to come up for discussion during the 2010 session that begins in January, a session usually reserved for emergency and governors' bills.

Boland herself uses a cell phone, but with a speaker to keep the phone away from her head. She also leaves the phone off unless she's expecting a call. At issue is radiation emitted by all cell phones.

Under Boland's bill, manufacturers would have to put labels on phones and packaging warning of the potential for brain cancer associated with electromagnetic radiation. The warnings would recommend that users, especially children and pregnant women, keep the devices away from their head and body.

The Federal Communications Commission, which maintains that all cell phones sold in the U.S. are safe, has set a standard for the "specific absorption rate" of radiofrequency energy, but it doesn't require handset makers to divulge radiation levels.

The San Francisco proposal would require the display of the absorption rate level next to each phone in print at least as big as the price. Boland's bill is not specific about absorption rate levels, but would require a permanent, nonremovable advisory of risk in black type, except for the word "warning," which would be large and in red letters. It would also include a color graphic of a child's brain next to the warning.

While there's little agreement about the health hazards, Boland said Maine's roughly 950,000 cell phone users among its 1.3 million residents "do not know what the risks are."

All told, more than 270 million people subscribed to cellular telephone service last year in the United States, an increase from 110 million in 2000, according to CTIA-The Wireless Association. The industry group contends the devices are safe.

"With respect to the matter of health effects associated with wireless base stations and the use of wireless devices, CTIA and the wireless industry have always been guided by science, and the views of impartial health organizations. The peer-reviewed scientific evidence has overwhelmingly indicated that wireless devices do not pose a public health risk," said CTIA's John Walls.

James Keller of Lewiston, whose cell phone serves as his only phone, seemed skeptical about warning labels. He said many things may cause cancer but lack scientific evidence to support that belief. Besides, he said, people can't live without cell phones.

"It seems a little silly to me, but it's not going to hurt anyone to have a warning on there. If they're really concerned about it, go ahead and put a warning on it," he said outside a sporting good store in Topsham. "It wouldn't deter me from buying a phone."

While there's been no long-term studies on cell phones and cancer, some scientists suggest erring on the side of caution.

Last year, Dr. Ronald B. Herberman, director emeritus of the University of Pittsburgh Cancer Institute, sent a memo to about 3,000 faculty and staff members warning of risks based on early, unpublished data. He said that children should use the phones only for emergencies because their brains were still developing and that adults should keep the phone away from the head and use a speakerphone or a wireless headset.

Herberman, who says scientific conclusions often take too long, is one of numerous doctors and researchers who have endorsed an August report by retired electronics engineer L. Lloyd Morgan. The report highlights a study that found significantly increased risk of brain tumors from 10 or more years of cell phone or cordless phone use.

Also, the BioInitiative Working Group, an international group of scientists, notes that many countries have issued warnings and that the European Parliament has passed a resolution calling for governmental action to address concerns over health risks from mobile phone use.

But the National Cancer Institute said studies thus far have turned up mixed and inconsistent results, noting that cell phones did not come into widespread use in the United States until the 1990s.

"Although research has not consistently demonstrated a link between cellular telephone use and cancer, scientists still caution that further surveillance is needed before conclusions can be drawn," according to the Cancer Institute's Web site.

Motorola Inc., one of the nation's major wireless phone makers, says on its Web site that all of its products comply with international safety guidelines for radiofrequency energy exposure. ( foxnews.com )



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Three Cups of Tea’ advice for Obama - ( 3 )


‘Three Cups of Tea’ advice for Obama. Best-selling author on U.S. war in Afghanistan: Listen to the locals - Nonprofit activist Greg Mortenson, co-author of the 2006 international best-seller "Three Cups of Tea," knows firsthand about the challenges of nation-building in Afghanistan, and he’s got some advice for the Obama administration: Open your ears more to the locals, or risk shooting yourselves in the boots.

Q: Gen. Petraeus is a huge fan of yours and "Three Cups of Tea" and has invited you to speak to troops. What do you say to them?

Mortenson: I visit about two dozen military bases a year and I also visit many of the senior commanders, and the first thing I tell the troops is, it’s imperative you put the elders in charge. The elders need to be affirmed that they are in charge. The second is, I say we need to spend more time listening and the third is we need to build relationships. I guess Gen. Petraeus could sum it up better than me, but he sent me an e-mail last year and he had read "Three Cups of Tea," and he said there were three lessons from the book that he wanted to impart to his troops. No. 1, he said, we need to listen more; No. 2, we need to have respect, meaning we are there to serve the good people of Afghanistan; and No. 3, we need to build relationships. "Three Cups of Tea" now is mandatory reading for all senior U.S military commanders, and all special forces deploying to Afghanistan are required to read it.

Q: How do you feel about that?

Mortenson: It’s pretty humbling, but having spent a lot of time now with the troops, I feel the troops are just like our brothers and sisters, just like us, nothing different. I also feel there’s tremendous dedication in the military. I can’t speak for Iraq, but I know Afghanistan. Many of the troops have volunteered to keep going back three or four times. I think that perhaps some of our best ambassadors, and those who ultimately will help bring the road for peace over there, will be our veterans who fought and served in Afghanistan. I also have tremendous admiration for the troops, soldiers who have this almost impossible task of trying to be warriors and diplomats and humanitarians simultaneously, and they’re trying the best they can to really do their job. It’s not easy.

I also think it’s a little hard sometimes because you hear the Western aid groups complaining, saying it’s not fair now how DOD is getting all the money and USAID and the other aid groups aren’t getting money. But you know, the aid groups refuse to go work in areas where they feel it isn’t secure, and my contention is if you work with local people, you can even go into the most volatile area where the Taliban are and be very successful with school projects but you have to involve the local community. And we can’t just be handing out money over there with no reciprocity or some type of input from the government or the provinces or the districts. These are cultures over there that expect to negotiate and barter. If you just go over there and start throwing money at people without asking anything of them in return, they think you’re kind of nuts.

I know it can be done, whether it’s at the micro or macro scale. It’s something we still have a hard time learning as Americans. It’s like tough love with your kids. You can tell them they can stay out late but you also have to tell them they need to clean their room first.

Q: What more can you say about President Obama’s decision this week?

Mortenson: I’m glad there’s been a decision made. I still think it’s very unfortunate that the shura were never consulted and I do hope that as we move forward that they will be brought to the table and that their voices will be heard. I’m going to keep insisting on that. And I also feel that it’s been a great blessing to be able to help the shura meet with some of the U.S. military generals so that their voice is at least being heard by somebody.

But I also really admire the fact that President Obama says he’s open to dialogue with Iran and other countries, because I really think that the real road to peace is regional and involves Iran and Russia and the whole region. I’m also a ferocious believer that ultimately, education should be our top priority, especially girls’ education. We can drop bombs and hand out condoms and build roads or put in electricity but if we don’t educate girls, nothing will change in society.

Q: What is your message to other philanthropists and social entrepreneurs in the region?

Mortenson: Listen, listen and listen even more. Often, when we Americans or Westerners have an idea and we want to go try to do something in other regions, I’ve found that in so many cases, people don’t listen to the people they’re serving. During the massive earthquake in Pakistan in 2005, for example, Americans sent tons of clothing over but most of the women burned it, using it instead for fuel. Most women simply wanted kerosene; I saw $200 tweed jackets from Manhattan being burned. Also, tens of thousands of tents were sent over to Pakistan and most of the tents were very expensive and highly implosive. Most people huddled together, five to 20 in a tent, and they had candles and kerosene lanterns and they burned outside the tents and hundreds of the tents imploded and hundreds of people died, and thousands were burned. But had anybody from the West asked them what they wanted, they would have said they could make their own tents out of canvas, and to send them canvas and sewing machines to make them.

I believe in putting local people in charge of things. Our staff at Pennies for Peace is a group I call the Dirty Dozen. A third of them are illiterate, most have very little educational background but they are willing to risk their lives, do anything, to promote education in the region. Three of our teachers are former Taliban. People in the United States gasp when I tell them this but these ex-Taliban are our biggest advocates, and we’ve learned from them how young men and boys can easily be turned around. The Taliban want these former members dead because they advocate education, but again, it always comes back that educated people are more independent.

I find it somewhat amazing how very nimble and small, poor organizations are able to exploit the lack of education very quickly and use ignorance to feed their own agenda. I think that’s why I feel that educating girls is so important. If you educate a boy, you educate an individual but if you educate a girl, you educate a whole community. There is a proverb in Afghanistan that, roughly translated, says that the ink of a scholar is holier than the blood of a martyr. And I believe that. Education is our greatest weapon. ( msn.com )



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‘Three Cups of Tea’ advice for Obama - ( 2 )


‘Three Cups of Tea’ advice for Obama. Best-selling author on U.S. war in Afghanistan: Listen to the locals - Nonprofit activist Greg Mortenson, co-author of the 2006 international best-seller "Three Cups of Tea," knows firsthand about the challenges of nation-building in Afghanistan, and he’s got some advice for the Obama administration: Open your ears more to the locals, or risk shooting yourselves in the boots.

Q: President Obama’s decision to send 30,000 more troops into the region — will this help or hinder your efforts to educate Afghan civilians?

Mortenson: Our work will continue, regardless, because of our nonprofit’s relationships with the Afghani elders. I was quite angry that there were nine meetings held behind closed doors in secrecy between President Obama and several of our commanders and advisers in the run-up to the president’s decision this week to send in more troops; the one thing that was never considered in any of the factoring-in was: What do the Afghan elders, or the shura, want? I feel that they should have had at least 50 percent of the voice in those meetings with the president.

The only place where the shuras were able to have some say, at least a little bit, was in the dozens of meetings our nonprofit helped to organize and facilitate between the shura and Gen. McChrystal since the general was appointed in April. There have been probably 35 or so meetings between him and some 200 shura from many of the different rural areas in Afghanistan. Our nonprofit has done this all on its own; we don’t receive any federal money and we don’t have any agenda. We’ve done this primarily on behalf of the elders who really wanted to meet the generals, and the generals who wanted to meet the shura.



Deirdre Eitel

Greg Mortenson greets schoolchildren in the town of Jafarabad in Shegar Valley, northern Pakistan, in July 2007.


Q: And who are the shura, specifically?

Mortenson: They are not elected. They’re pretty much people who have risen through the ranks of society in Afghanistan and are held in high esteem by the people locally. They’re successful businessmen or warriors or poets, and they are seen as being very wise and the real power in the country. And unfortunately, the Afghani government is fairly fragile and to some degree is also fairly corrupt, and so to the shura, it’s very humiliating and also very angering that nobody ever talked with them and asked them what their consensus is or how they feel about their own country.

I was able to sit in on some of these meetings, which would include Gen. McChrystal. One of the very strong points that came out in these meetings was that elders are very opposed to bombings. That’s their No. 1 complaint. The problem is that if you bomb, you kill civilians and if you do bomb, you need intelligence and the only way you can have good intelligence is to have more boots on the ground.

Q: What other things did the shura say in those meetings?

Mortenson: I think our government has done a poor job telling the public that about a third to half of those troops Obama is sending over are trainer troops. Of the 22,000 troops announced in February, 8,000 of those are trainer troops — from the National Guard and reservists. They’re teachers and engineers, bankers, dentists, horticulturalists, civil engineers and veterans. And roughly about a third or more of the new 30,000 troops he is sending will be trainer troops.

This is in line with what the shura have been saying for years — that they don’t need firepower but brainpower. They say, 'We want you to help us out but we don’t need help to go fight the Taliban or to kill and capture al-Qaida, but we do need some help to get us on our feet again so if you want to send over some of your special soldiers, like veterinarians and doctors and dentists and nurses, we’d love to have those come over. But if you’re just going to send over troops for fighting, then we don’t want those, we don’t really need those troops.' That’s what the shura are telling McChrystal when I’ve heard him talking to them.

In "Three Cups of Tea," I was actually fairly critical of the military. But now I think that, in many ways, they’re ahead of the State Department and our political leaders because they’ve been on the ground numerous times now. Joint Chiefs of Staff Adm. Mike Mullen, Gen. David Petraeus and U.S. Maj. Gen. Eric Olson, the special forces commander, have — combined — been in Pakistan and Afghanistan 35 times in the last 14 months. Compare that with, for example, Hillary Clinton, who went over to Pakistan for a few hours last week. I’m hoping ultimately that all of the top military and American diplomatic and political leaders of will spend more time and get to know people and talk to them and listen to them more now going forward.

Q: What else do you think Americans should know about Afghanistan?

Mortenson: Some of the things the elders will talk about that you don’t hear about in the public are, for example, that in 2000, there were 800,000 kids in school in Afghanistan, and this was during the height of the Taliban. The kids were nearly all boys. Today, there are 8.4 million children in school in Afghanistan, including 2.5 million females. So it’s the greatest increase in school enrollment in any country in modern history and the goal is 13 million. So what I’m saying is that there are some really good things happening in Afghanistan, as well. There’s also a central banking system now in Afghanistan that wasn’t there and which was put in in 2006. That’s had a huge impact on the country. There also is an Eisenhower-era road-building program so the roads are about 60 percent done. ...

You can’t plug in a democracy; you have to build one. The real key is not only education but also land ownership. You go into the district courts now in Afghanistan and it’s mind-boggling how many women are going in and filing their titles for land ownership. I just try to tell people that yes, there are a lot of bad things happening and it’s very frightening but there are also some very amazing things going on and pretty much this all happened at a time when we put Afghanistan on the back seat. Just imagine what could happen if we devoted serious effort over the next two to four years to help the people of Afghanistan.( msn.com )



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‘Three Cups of Tea’ advice for Obama - ( 1 )


‘Three Cups of Tea’ advice for Obama. Best-selling author on U.S. war in Afghanistan: Listen to the locals - Nonprofit activist Greg Mortenson, co-author of the 2006 international best-seller "Three Cups of Tea," knows firsthand about the challenges of nation-building in Afghanistan, and he’s got some advice for the Obama administration: Open your ears more to the locals, or risk shooting yourselves in the boots.

In interviews this week, Mortenson, 51, the former K-2 mountain climber-turned-philanthropist whose nonprofit Central Asia Institute has established 130 schools and promoted girls' education in rural Afghanistan and Pakistan, urged the U.S. to include input from Afghani tribal elders in the Pentagon's expanded military effort in the region, or risk failure.

In the deliberations preceding President Barack Obama’s announcement Tuesday that he is sending 30,000 more troops to Afghanistan, Mortenson said, “there were nine meetings held behind closed doors, in secrecy, between Obama and military leaders but Afghanistan’s provincial elders were not considered in any of those meetings — even though they are the real power in the country.”

Mortenson urged the administration to expand its push to promote education of women and girls in the region. “Ultimately, education should be our top priority, as well as relationship-building with local elders and civilians,” he said in an interview. “We can drop bombs and hand out condoms and build roads or put in electricity but if we don’t educate children, and especially girls, nothing will change in society."

Mortenson is someone the military's top brass listens to — and has often consulted with. "Three Cups of Tea" has become required reading for U.S. commanders and troops deploying to Afghanistan, making Mortenson a valued but unofficial adviser to the Pentagon. Mortenson's follow-up book, "Stones into Schools: Promoting Peace with Books, Not Bombs," was released Monday.

'I now think the military gets it'

In an interview, Mortenson, a former U.S. Army medic and mountain climber from Bozeman, Mont., retracted earlier remarks that the U.S. Army were all “laptop warriors … who don’t have a clue what was going on locally, on the ground.” Now, he says, “despite a steep learning curve on the part of the U.S. military, I now think the military gets it.”

Since April, Mortenson has facilitated more than 35 meetings in Afghanistan between local shura, or tribal leaders, and U.S. military commanders, including Gens. Stanley McChrystal, the top U.S. commander in Afghanistan, and David Petraeus, the head of U.S. Central Command. In those meetings, he says, more than 200 shura from dozens of provinces in Afghanistan conveyed that they want less military might and more brainpower from Americans in their push to rebuild after years of conflict. “They want us to know that it’s not just about fighting the Taliban but also about relationship-building with Afghan civilians and helping the Afghanis build schools and the infrastructure that they want and need.”

When asked what nonprofits can teach the Pentagon, Mortenson said in the interview that aid groups must do more listening, rather than deciding for people what’s best.

I caught up with Mortenson in New York City on Tuesday, at the start of his U.S. book tour for "Stones into Schools":


Teru Kuwayama

Mortenson with students from Lalander Primary School in Lalander village, Char Asiab valley, Afghanistan, in 2005

Q: Gen. Petraeus is a fan of "Three Cups of Tea" and has had you speak to the U.S. troops in Afghanistan. What have you said to them and do you find it odd that you’ve become a kind of unofficial advisor to the U.S. military in the region?

Mortenson: What I tell U.S. troops when I’ve spoken to them is that it’s critical to listen more to the local people, to be respectful of them — that Americans are there to serve the good people of Afghanistan, and that third, we need to build relationships with the people. It’s my contention that if you work with local people, you can go into the most volatile areas and be very successful, but you have to involve the community.

What needs to be done and which still is not being done is that we have to insist, as a nation, there be some kind of reciprocity, some kind of mutual payback from the Afghani communities being helped. So far, [congressional] legislation has contained money to the region but it doesn’t include the input of the local people on the ground and doesn’t insist on reciprocity, that the local people also must contribute and help contribute to the help they are getting from the outside.

Q: Your latest book, "Stones Into Schools," also about Afghanistan, just came out. Why did you write it?

Mortenson: Mainly because of our significant expansion into Afghanistan, and also because I’m in that country for half the year and I wanted my kids to know why their dad has been gone for half their childhood. But there is also a third reason I wrote it. After writing "Three Cups of Tea," I visited 120 cities, and everywhere I went, Americans expressed to me a yearning for global peace. I think it’s really important that we reach out and share that yearning that Americans have with the rest of the world.


Q: Where did the title of your new book come from?

Mortenson: I’ve worked for 17 years in rural Afghanistan and Pakistan, and particularly in the tribal areas. In Afghanistan, there is what I call a warrior culture, and one of the things I’ve had the great honor to do is spend a lot of time with the mujahedeen, or the warriors. Some are shady and they have different backgrounds but there is a very common theme to the visits, and that’s where the title to my latest book comes from.

When you are visiting a mujahedeen, they will often invite you to their compound, and then, in the evening, they will sit you on the roof and as the swallows are flying around in the sky and you see the great panorama of the Hindu Kush, the premier mountain range in the region, sweeping before you. They will then serve you green tea and then start telling you war stories. And then they’ll ask, 'Do you see those boulders up there, the stones in the mountains? And then they’ll point out where their different skirmishes took place, and their battles, and then they’ll tell you that every one of those stones is a shahid, or a martyr, who died fighting the Taliban or the Russians or their other nemeses.

Now, they say, they must turn those stones into schools and make the sacrifices of their dead warriors worthwhile. You know, Afghanistan, for over two millennia, has been at the crossroads of civilization and has had different invading armies come and go, and the waxing and waning of empires. This is not my interpretation, but it’s how they perceive it — that they are a warrior culture and want now to make their war against ignorance. ...

There’s a saying the elders often repeat, and roughly translated, it’s that God created the world and it was good, and then he took the leftovers and threw them into a pile and cobbled the bits together and that became Afghanistan. When you hear that, it’s very sad, but at the same time, the Afghan people take great pride in knowing that it’s the last best place, the place where the bits and pieces have come together to become these very resilient and beautiful people. ( msn.com )


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China must show leadership on climate change


China must show leadership on climate change – The European Union said Monday that cataclysmic climate change cannot be averted without Chinese leadership but Beijing stood firm in pushing for the rich world to take the lead.

"We cannot solve the climate challenge to mankind without China taking on leadership and responsibility," Swedish Prime Minister Fredrik Reinfeldt said in his capacity as EU president at a summit in the eastern city of Nanjing.

"So far our belief is the global effort put on the table for mitigation is not enough... more needs to be done," he said in a post-summit address with host Premier Wen Jiabao and European Commission President Jose Manuel Barroso. Related article: Barroso calls for more effort

He spoke after a summit that reinforced the relationship between China and the EU, its largest trading partner, after US President Barack Obama's visit to China fuelled talk of a "G2" world dominated by Washington and Beijing.

The two sides stressed Monday the importance of a multipolar world and agreed to work together to "actively meet global challenges and strive for a peaceful, sustainable and prosperous world", according to a joint statement.

While acknowledging efforts made by China -- the world's largest greenhouse gas emitter -- Reinfeldt raised questions about a Chinese plan to slow its carbon emissions growth announced last week ahead of Copenhagen climate talks.

"What does it mean when it's compared to business-as-usual? What kind of measures are being put into the Chinese economy to be able to deliver on these?" he said.

Barroso told reporters late Sunday that the European Union had urged China to maximise its efforts to help tackle climate change and do all it can, exploring the "outer limits" of its position.

Wen, however, defended China's offer, saying it marked "a major contribution to global efforts" on the issue.

"China places high importance on the upcoming Copenhagen conference," said Wen, who will lead the Chinese delegation at the talks.

"China is willing to work to move the conference in the right direction."

Beijing said last week that by 2020 it would curb emissions per unit of gross domestic product by between 40 and 45 percent compared to 2005 levels.

The pledge was essentially a vow to increase energy efficiency but would see China's fast-growing emissions continue to grow along with its economy.

In a low-profile weekend meeting of developing nations in Beijing, participants reiterated the Chinese position that developed countries must shoulder most carbon emissions cuts.

The official People's Daily newspaper said the meeting of representatives from China, India, Brazil, South Africa and Sudan agreed to ask "developed countries to assume responsibility for emissions reduction targets".

Wen also said each nation's burden should depend on its development level.

"This is the key to success of the (Copenhagen) conference," he said.

World leaders gather in Copenhagen from December 7 for UN talks on tackling global warming beyond 2012.

Leaders have said that, at best, the meeting is likely to yield a framework accord whose legally binding details would be hammered out next year.

At Monday's joint news appearance, Barroso said major players "can always negotiate with numbers, but we cannot negotiate with science, with physics".

The European Union has offered to cut its 2020 emissions to 20 percent below 1990 levels, and by 30 percent if an ambitious world agreement can be reached.

The White House last week said Obama would offer to cut carbon emissions by 17 percent by 2020, based on 2005 levels.

Reinfeldt said the European Union was also urging Washington to do more.

(AFP)



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Malaria Shows Signs of Resisting Primary Drug Used to Fight It


Malaria Shows Signs of Resisting Primary Drug Used to Fight It—Malaria that is resistant to the best available drug is more widespread in Southeast Asia than previously reported, new research shows. The worrisome finding poses a risk that travelers could carry this strain of the malaria parasite to other parts of the globe and unwittingly spread it, scientists reported November 19 at a meeting of the American Society of Tropical Medicine and Hygiene.

The frontline drug in question is called artemisinin, the most potent medication currently in use against malaria. Signs of malarial resistance to artemisinin have surfaced over the past several years in Cambodia (SN: 11/22/08, p. 9). The new findings confirm that resistant malaria has now cropped up beyond a spot on the border of Thailand and Cambodia where it was initially detected. Now it has appeared in Vietnam and in two spots along the Burma border with Thailand and China.

“Things are changing. There’s no doubt the signs are concerning,” said Robert Newman, director of the Global Malaria Programme at the World Health Organization in Geneva. But he added that these signals are early and need further verification.

Patients in these areas take longer on average to overcome a malaria infection when given a standard combination of artemisinin and another antimalarial. This lag results from slower clearance of the malaria parasites from the blood, said WHO’s Pascal Ringwald, a medical officer who presented the update.

Patients who remain ill for longer stretches despite treatment need extra medication to recover from malaria and are also more likely to have severe or fatal cases, Ringwald said.

Malaria is caused by a single-celled parasite that infects the blood. Symptoms include fever, headache, chills, anemia and a swollen spleen. Of the more than 350 million people who come down with malaria worldwide each year, up to 1 million die. Mosquitoes spread the parasite from person to person.

Malaria has a history of becoming resistant to drugs, and artemisinin now risks becoming the most recent addition to that list. The new reports are disheartening to doctors because artemisinin normally packs a considerable wallop. Although artemisinin is a short-acting drug that gets cleared from the body in a few hours, it makes the most of its time — driving down parasite levels dramatically.

Using artemisinin alone invites resistance. So the standard therapy teams it with one of the longer-acting drugs, which perform mop-up duty on the remaining parasites, said Christopher King, a physician and epidemiologist at Case Western Reserve University in Cleveland.

The new flashes of resistance may have arisen because combination treatment isn’t always available. And since artemisinin can be bought over the counter in many parts of Asia, people seeking relief don’t always follow the WHO guidelines of pairing artemisinin with another drug, King said.

Also, taking artemisinin for a fever that isn’t caused by malaria can allow resistant strains of the parasite to take hold, Newman said.

In the past, malaria’s resistance to other drugs has been linked to specific genetic changes in the parasite. The precise mechanism underlying resistance to artemisinin is still unsolved, King said.

Artemisinin is derived from extracts of the sweet wormwood bush. The bush’s leaves have been used as a folk remedy against fevers for roughly 2,000 years in Asia but fell out of use in the 20th century with the introduction of modern antimalarial drugs such as chloroquine.

During the Vietnam War, North Vietnamese leader Ho Chi Minh appealed to China for traditional remedies for soldiers who had malaria. Tea made from sweet wormwood leaves worked and ultimately became the basis for artemisinin drugs. It’s not clear whether parasites in Southeast Asia are the first to become resistant because they have had a long history with artemisinin, or if other factors are involved, Newman said. ( sciencenews.org )


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Breaking the Human Speed Limit


Breaking the Human Speed Limit. Jamaican sprinter Usain Bolt secured his claim as the world’s fastest human in August when he ran 100 meters in 9.58 seconds, reaching a top speed of nearly 28 miles per hour. One day, no doubt, someone will sprint faster still. Perhaps by then, scientists may better understand why all speed records made have eventually been broken.

Statisticians have long tried to calculate the upper limits of human speed. One recent estimate, published last year in the Journal of Experimental Biology, put the quickest possible time for 100 meters at 9.48 seconds. That prediction was based largely on past performance and the pace at which current records are falling. But while statistical exercises provide fodder for speculation, no one really knows the limit of human speed —both because scientists still can’t fully explain the blend of biology and physics that separates athletes like Bolt from the rest of the world, and because unforeseen technologies can push athletic achievement beyond the merely human.




“The more you understand biomechanics, and the more technologically advanced you become, the more you become capable of intervening,” says physiologist and biomechanics expert Peter Weyand of Southern Methodist University in Dallas. Those interventions have become both hailed and dreaded, as they often end up casting a shadow over organized sports. This summer, when little-known German swimmer Paul Biedermann beat Olympic champion Michael Phelps in the 200-meter freestyle, Biedermann seemed unsure whether to credit his swimming or his newfangled polyurethane swimwear: “I hope there will be a time when I can beat Michael Phelps without the suit,” Biedermann told sportswriters, some of whom dubbed the new swimsuits “doping by wardrobe.”

Technological innovations that confer a competitive edge have paralleled advances in understanding the physiology of human athletic performance, says Rick Neptune, a mechanical engineer at the University of Texas at Austin. “When they intersect, you start to see world records get broken,” he says. “We can’t say in the future which will matter more, as the rules of competition adjust.” In the current issue of Annual Review of Biomedical Engineering, Neptune chronicles how improvements in equipment design have a history of pushing racing past its natural boundaries.

“It’s not clear where that boundary is until you’ve crossed it,” he says. For example, in 1997 he witnessed one of the first international speed skating competitions with widespread use of klapskates, which reduce friction and maximize muscle force by allowing the boot of the skate to pivot away from the blade. At a single World Cup competition in Calgary, Canada, he watched 14 world records devoured, one heat after another — all owing to the new skates. The International Skating Union ultimately allowed klapskates to remain, saying they had revolutionized the sport and were widely available to any competitor.

Future conflicts might be avoided as scientists better define the basis for human ability. “It’s surprising how little we understand when it comes to tying performance to our physiology and anatomy,” says evolutionary biologist Thomas Roberts of Brown University in Providence, R.I. “We don’t completely understand the basis for top speed.” ( sciencenews.org )



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When Green Paint Isn't So "Green"


When Green Paint Isn't So "Green". It seems we're literally painting the air -- from the Great Lakes to Antarctica -- with persistent pollutants. Including at least one whose safety has never been studied.

Last year, University of Iowa scientists reported the discovery of a novel contaminant in urban air -- a polychlorinated biphenyl, or PCB, that had never been intentionally manufactured. Especially perplexing: Despite having no known sources, it was the fifth most abundant PCB in Chicago’s air. At once, chemists began puzzling over where this PCB-11 might be coming from. The solution – or at least one answer – emerged today. It’s paint. The type we slather on interior walls and outdoor trim.

The first clue to PCB-11’s source was its idiosyncratic abundance, which Keri Hornbuckle described at the Society of Environmental Toxicology and Chemistry annual meeting, last year. While the pollutant could be found almost anywhere that her team had sampled in Chicago and Cleveland, concentrations varied. Indeed, their data identified a fairly large number of hot spots in each town. Such as the waste water from a paint-manufacturing plant.

Over the past year, others have turned up the anomalous PCB-11 as well -- polluting air from Philadelphia to Antarctica.

Hornbuckle’s team returned to SETAC this year with data that now firmly indicts paint. Not the base paint, actually – that can of goop to which tint is added. The PCB instead laces pigments: especially greens – but also some blues, yellows, oranges and reds.

This was a rather painstaking study, explains Dingfei Hu. There are 209 different species of PCBs. They tend to persist in the environment for long periods of time, allowing them to travel long distances from where they were released. The Iowa scientist collected various types of base paint and colors from several local retailers: Sherwin Williams, PPG Pittsburgh and Vogel. Every tint these companies offer is mixed from some combination of roughly 10 starting colors. Hu sampled all of those starting-ingredient colors from each company – 33 in all – and analyzed each for the presence of any and every PCB.

Fifteen pigments contained PCBs – yes, multiple ones -- in concentrations ranging from 2 to 200 parts per billion. Where these pollutants turned up, PCB-11 was almost invariably present, often in the company of PCB-209 (which sometimes greatly dwarfed PCB-11’s concentrations).

Further probing showed that the PCBs’ presence was anything but random. Pigments belong to two general classes. The inorganic ones derive from minerals or are manufactured synthetically. None of the sampled inorganic pigments, including titanium dioxide, iron oxide, raw umber or carbon black contained PCBs. The unwanted contaminants did show up in two families of organic pigments, Hu found -- the phthalocyanines, which impart a deep blue or green color, and the azo pigments, which are used to color some paints yellow, red or orange.

In a paper slated to come out in Environmental Science & Technology within a few months, the Iowa group will describe their findings and offer hypotheses on how the production of some pigments unwittingly cooks up PCBs along the way.

Of course, the burning question about these unusual airborne PCBs is: So what? Are they toxic? If they are, at what concentrations? Hu says there are no answers yet. Indeed, until now, there hadn’t really been a reason to investigate.

Now that we’ve learned these pollutants get out of paint and accumulate in the air, it’s time to start investigating whether they pose any risks to health. Fortunately, Hu says he’s got colleagues at Iowa who are just about to embark on such studies. (Some PCBs are suspected carcinogens, but those tend to be ones that – unlike PCB-11 and -209 – mimic the biological action of dioxins.)

As for tips to apply at the paint store . . . Hu recommends avoiding green, blue, red and orange paint. Actually, to play it safe, he says: “I would stay with white and black.”

Not me – I’m allergic to both. And that’s why I’m hoping green chemists will take an interest in formulating recipes for PCB-free tints. ( sciencenews.org )


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