Tuesday, 18 October 2011

Half of teens shy, but for a few it's more serious (AP)

WASHINGTON ? Does your teen show normal nerves about the weekend party, or always stay home?

Nearly half of teenagers say they're shy, perhaps a bit surprising in our say-anything society. But a government study finds a small fraction of those teens show signs of a troubling anxiety disorder that can be mistaken for extreme shyness.

The report challenges criticism that the terms "social phobia" or "social anxiety disorder" medicalize normal shyness.

"Shyness is a normal human temperament," says lead researcher Dr. Kathleen Merikangas of the National Institute of Mental Health, whose teachers always noted her own childhood shyness on her report cards.

But just as it can be hard to tell when feeling sad turns into depression, "there is a blurred boundary between people who describe themselves as shy and clinically significant impairment," Merikangas adds.

The difference: The shy can be drawn out and adapt, while teens or adults with full-fledged social anxiety become so paralyzed during social situations that it interferes with everyday functioning.

"I didn't go out on dates or do any of the things that other kids did," recalls Cynthia Kipp of Tehachapi, Calif., who shared her story of years struggling with social phobia with the Anxiety Disorders Association of America. Now 48, she thinks her first anxiety symptoms began in fourth grade, when she can remember hiding under her coat in class, but worsened in high school when she tried drugs and alcohol for relief. Eventually she found treatment that worked.

The report also opens a window into the broader field of temperament research. Even garden-variety shyness worries parents, particularly fathers of boys, says Dr. Nancy Snidman of Children's Hospital Boston.

In school-age boys especially, "shyness isn't very well tolerated in the United States," says Snidman who wasn't involved with the new research.

Snidman and colleagues at Harvard Medical School have tracked infants to their college years, and know that babies who react very negatively to new people and objects tend to grow into shy children. That's not a bad thing ? caution is considered an important evolutionary adaptation.

Usually, the clinging tot does just fine as he or she grows older and finds a niche, Snidman says. Girls may think the shy teen boy is nice because he's not macho, for example, or the shy kids wind up on the school newspaper so they can write instead of do public speaking. Many outgrow their shyness.

Yet a very shy child is considered more at risk than others of later developing some type of anxiety disorder ? just as the opposite extreme, a very outgoing child, can be at greater risk for attention or conduct disorders, she says.

The new study, published by the journal Pediatrics, is based on in-person surveys of more than 10,000 U.S. teens about a variety of mental health issues. More than 6,000 of their parents were surveyed, too.

About 47 percent of the teens identified themselves as shy around peers they don't know well. More than 62 percent of parents thought their teens were shy, perhaps a reflection of parental worry.

Then Merikangas' team analyzed how many teens appeared to meet the American Psychiatric Association's criteria for social anxiety disorder or social phobia. Roughly 1 in 10 of the self-described shy kids did.

Social phobia tends to appear during adolescence when kids take their first real steps toward independence, but there's little information about how often. The National Institutes of Health estimates it affects about 15 million adults.

The surveyed teens weren't formally diagnosed; Boston's Snidman cautions that what a specialist observes can be quite different from what a teen recalls.

Still, those identified as potentially socially phobic were more likely to have another mental health problem, such as depression or substance abuse. But they were no more likely than the other teens to be taking psychiatric medications.

There are anxiety-treating medications but the main treatment is behavioral therapy, exposing people very gradually to fear-inducing situations and teaching them coping techniques

What's a worried parent to watch for? This isn't standard stage fright, where you get sweaty palms before a speech but each one you do becomes easier. People with social anxiety disorder experience a more out-of-proportion fear that can make them shake, their hearts pound, or even cause a panic attack during a range of social situations. They start avoiding those scenarios.

The question is whether an anxious or shy teen is doing things typical of that age ? participating in class, getting together with friends, going to group activities, says Dr. Chris Mauro, a Duke University psychologist. Try to get them into a group, whether it's sports or music or Scouts, because belonging is protective, he says.

The NIH's Merikangas recommends keeping an eye on social media, too. Sure it encourages electronic communication, but it may further isolate those already on that path, she says.

Teachers may notice a problem first, and shouldn't single out kids who won't participate in class but encourage them through group activities, she advises.

___

EDITOR'S NOTE ? Lauran Neergaard covers health and medical issues for The Associated Press.

Online:

NIH info: http://www.nimh.nih.gov/health/topics/social-phobia-social-anxiety-disorder/index.shtml

Anxiety Disorders Association of America: http://www.adaa.org

Source: http://us.rd.yahoo.com/dailynews/rss/health/*http%3A//news.yahoo.com/s/ap/20111017/ap_on_he_me/us_med_healthbeat_shy_or_more

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Sunday, 16 October 2011

Rihanna and Matt Kemp: Getting Back Together?!


Dudley O'Shaughnessy says he's too busy to date Rihanna.

It appears Matt Kemp does not have that same problem.

The Los Angeles Dodgers center fielder, who dated Rihanna for all of 2010, reunited with the singer for a night out on the town Wednesday in London.

Might there be a romantic reconciliation in the works?

Matt Kemp, Rihanna Picture

Matt Kemp and Rihanna in Los Angeles last year.

Spotted leaving Stringfellows Nightclub around 2 a.m., the singer - on a break from her Loud tour - sported plum lipstick and a curly 'do to party with her ex.

It's unclear what the future holds, but they did not part on bad terms.

"She's a good friend of mine," Kemp said after they broke up this winter. "We're good. We've got busy lives and we're concentrating on our careers. Like I said, I wish her all the best of luck and she wishes me all the best of luck."

Unfortunately for Matt, his luck improved after they split. His three-year stats, with 2010 being the season in which he and Rihanna dated, are telling:

2009: .297 BA, 107 R, 26 HR, 34 SB
2010: .249 BA, 82 R, 28 HR, 13 SB
2011: .324 BA, 115 R, 39 HR, 40 SB

[Photo: Fame Pictures]

Source: http://www.thehollywoodgossip.com/2011/10/rihanna-and-matt-kemp-getting-back-together/

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Saturday, 15 October 2011

Watching motion of electrons in molecules during chemical reactions

ScienceDaily (Oct. 14, 2011) ? A research group led by ETH Zurich has now, for the first time, visualized the motion of electrons during a chemical reaction. The new findings in the experiment are of fundamental importance for photochemistry and could also assist the design of more efficient solar cells.

In 1999, Ahmed Zewail was awarded the nobel prize in chemistry for his studies of chemical reactions using ultrashort laser pulses. Zewail was able to watch the motion of atoms and thus visualize transition states on the molecular level. Watching the dynamics of single electrons was still considered a dream at that time. Thanks to the latest developments in laser technology and intense research in the field of attosecond spectroscopy (1 attosecond = 10-18 s) the research has developed fast. For the first time, Prof. Hans Jakob W?rner from the Laboratory of Physical Chemistry at ETH Zurich, together with colleagues from Canada and France, was able to record electronic motion during a complete chemical reaction. The experiment is described in the latest issue of Science.

The research team irradiated nitrogen dioxide molecules (NO2) with a very short ultraviolet pulse. Subsequently, the molecule takes up the energy from the pulse which sets the electrons in motion. The electrons start rearranging themselves, which causes the electron cloud to oscillate between two different shapes for a very short time, before the molecule starts to vibrate and eventually decomposes into nitric oxide and an oxygen atom.

Conical intersections

Nitrogen dioxide has model character with respect to understanding electronic motion. In the NO2 molecule, two states of the electrons can have the same energy for a particular geometry -- commonly described as conical intersection. The conical intersection is very important for photochemistry and frequently occurs in natural chemical processes induced by light. The conical intersection works like a dip-switch. For example, if the retina of a human eye is irradiated by light, the electrons start moving, and the molecules of the retina (retinal) change their shape, which finally converts the information of light to electrical information for the human brain. The special aspect about conical intersections is that the motion of electrons is transferred to a motion of the atoms very efficiently.

Snapshot of an electron

In an earlier article, Hans Jakob W?rner has already published how attosecond spectroscopy can be used for watching the motion of electrons. The first weak ultraviolet pulse sets the electrons in motion. The second strong infrared pulse then removes an electron from the molecule, accelerates it and drives it back to the molecule. As a result, an attosecond light pulse is emitted, which carries a snapshot of the electron distribution in the molecule. W?rner illustrates the principle of attosecond spectroscopy: "The experiment can be compared to photographs, which, for example, image a bullet shot through an apple. The bullet would be too fast for the shutter of a camera, resulting in a blurred image. Therefore, the shutter is left open and the picture is illuminated with light flashes, which are faster than the bullet. That's how we get our snap-shot."

From the experiment to solar cells

When the electron returns to the molecule, it releases energy in the form of light. In the experiment, W?rner and his colleagues measured the light of the electrons and were therefore able to deduce detailed information on the electron distribution and its evolution with time. This information reveals details of chemical reaction mechanisms that were not accessible to most of previous experimental techniques. The experiment on NO2 helps understanding fundamental processes in molecules and is an ideal extension of computer simulations of photochemical processes: "What makes our experiment so important is that it verifies theoretical models," says W?rner. The immense interest in photochemical processes is not surprising, as this area of research aims at improving solar cells and making artificial photosynthesis possible.

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Story Source:

The above story is reprinted (with editorial adaptations by ScienceDaily staff) from materials provided by ETH Z?rich.

Journal Reference:

  1. H. J. Worner, J. B. Bertrand, B. Fabre, J. Higuet, H. Ruf, A. Dubrouil, S. Patchkovskii, M. Spanner, Y. Mairesse, V. Blanchet, E. Mevel, E. Constant, P. B. Corkum, D. M. Villeneuve. Conical Intersection Dynamics in NO2 Probed by Homodyne High-Harmonic Spectroscopy. Science, 2011; 334 (6053): 208 DOI: 10.1126/science.1208664

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

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

Source: http://www.sciencedaily.com/releases/2011/10/111014080023.htm

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Verizon sending Xoom docks back with delayed, updated slates

Still bummed about the delay in getting your Xoom back from its trip to the shop? Well, it appears Verizon may be looking to smooth things over with those who have been waiting the longest. One of our readers let us know, that because they were "among the first" to send off for the 4G LTE / Honeycomb 3.2.2 upgrade, the carrier sent back a Standard Dock (worth $50) along with the juiced up slate. Is it enough to make up for the extra wait time? That depends on your Xoom addiction -- but we have to admit, it's a pretty nice gesture from ol' Big Red.

[Thanks, Nazir]

Update: We're hearing from many of you that the Dock was part of the original update process while supplies lasted. You can still consider yourself somewhat lucky if you were quick enough got one.

Verizon sending Xoom docks back with delayed, updated slates originally appeared on Engadget on Thu, 13 Oct 2011 08:32:00 EDT. Please see our terms for use of feeds.

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/Iqf91AhduAw/

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Leave Debt Fast ? How to Capitilize on the Financial Bailouts to ...

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Source: http://debtreductionblog.info/get-out-of-debt/leave-debt-fast-how-to-capitilize-on-the-financial-bailouts-to-receive-personal-debt-relief/

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Friday, 14 October 2011

Doctor: Drug 'cocktail' killed Michael Jackson (AP)

LOS ANGELES ? Dr. Conrad Murray's use of a cocktail of drugs on Michael Jackson as he struggled to fall asleep on the day he died was a "recipe for disaster" and ultimately caused his death, a UCLA sleep therapy expert testified Thursday.

Dr. Nader Kamangar described Murray's treatment as "unethical, disturbing and beyond comprehension."

Under questioning by Murray's attorney, J. Michael Flanagan, the witness was asked to tell jurors what he knew about the events of June 25, 2009, the day of Jackson's death.

"To summarize, Mr. Jackson was receiving very inappropriate therapy in a home setting, receiving very potent therapies without monitoring," Kamangar said.

He said diazepam (Valium), lorazepam (Ativan) and midazolam (Versed) were given to the sleepless star during a 10-hour period throughout the night and morning.

"This cocktail was a recipe for disaster," Kamangar said.

Noting the addition of propofol (Dipravan), a powerful anesthetic used in surgeries, Flanagan asked: "Could this have caused death?'

"Absolutely," Kamangar said. "Absolutely."

Authorities say Murray gave Jackson a fatal dose of propofol. Murray has pleaded not guilty to involuntary manslaughter.

The witness, one of the experts who evaluated Murray's actions for the California Medical Board, expressed dismay about the drugs Murray gave the pop star, his failure to immediately call 911 for help, and his lack of monitoring and record-keeping.

Murray was unable to produce any written records on his treatment of Jackson, Kamangar noted.

"There were no records whatsoever," he said. "It's very easy to forget details. We do not rely on memory."

"So it's your opinion that there's no way he could have remembered what he did if he didn't write it down?" Flanagan asked.

"It is an egregious violation of the standard of care when you are using sedatives like propofol and you are not writing it down," Kamangar answered.

The defense lawyer pressed on, asking, "Because he didn't write down the pulse rate, oxygen saturation, heart rate ... that didn't kill Michael Jackson, did it?'

"It's a combination of factors," said Kamangar.

"But not the cause of death?" asked Flanagan.

"It's a contributing factor," said the witness.

Kamangar was the third prosecution expert to criticize the conduct of Murray. He said his first mistake was using propofol to treat insomnia, calling it an unacceptable application of the drug.

He said Jackson's demand for the drug ? the subject of previous testimony ? was not a sufficient reason to give it. He also suggested Murray should have done a physical examination, taken a history from his patient about his insomnia, and called in other medical experts if necessary to evaluate the problem.

"The most important thing he should have done is call for help," Kamangar said.

He said Murray's interview with police made it clear that he waited too long to call 911 when he found Jackson not breathing.

Flanagan suggested at one point that doctors sometimes practice "bad medicine," but their patients are unharmed. Kamangar agreed.

On redirect questioning, Deputy District Attorney David Walgren asked: "Mr. Flanagan asked if a doctor could be grossly negligent and the patient could survive?"

"Yes," said Kamangar.

"Conrad Murray was grossly negligent in many areas and he caused Michael Jackson's death, is that correct?"

"Yes," said the witness.

On Wednesday, Murray's defense team announced they were dropping a claim that was the centerpiece of their case ? that Jackson swallowed additional propofol when Murray was out of the room. Flanagan did not bring up self-dosing on Thursday.

Before court recessed, the prosecution called to the stand Dr. Steven Shafer, one of the nation's leading experts on propofol. However, he did not get into his substantive testimony before trial recessed until Monday because Shafer had a schedule conflict.

Shafer was expected to be the final prosecution witness in the case. The defense has a colleague of Shafer's waiting to take the stand.

Shafer helped craft guidelines for appropriate propofol dosing for sedation that is included in the packaging of every bottle that is sold.

Murray could face up to four years behind bars and the loss of his medical license if convicted.

___

AP Entertainment Writer Anthony McCartney contributed to this report.

___

McCartney can be reached at http://twitter.com/mccartneyAP

Source: http://us.rd.yahoo.com/dailynews/rss/celebrity/*http%3A//news.yahoo.com/s/ap/20111014/ap_en_mu/us_michael_jackson_doctor

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