Wednesday, January 30, 2013

Scripps Research Institute study shows how brain cells shape temperature preferences

Scripps Research Institute study shows how brain cells shape temperature preferences [ Back to EurekAlert! ] Public release date: 29-Jan-2013
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Contact: Eric Sauter
esauter@scripps.edu
267-337-3859
Scripps Research Institute

JUPITER, FL, January 29, 2013 While the wooly musk ox may like it cold, fruit flies definitely do not. They like it hot, or at least warm. In fact, their preferred optimum temperature is very similar to that of humans76 degrees F.

Scientists have known that a type of brain cell circuit helps regulate a variety of innate and learned behavior in animals, including their temperature preferences. What has been a mystery is whether or not this behavior stems from a specific set of neurons (brain cells) or overlapping sets.

Now, a new study from The Scripps Research Institute (TSRI) shows that a complex set of overlapping neuronal circuits works in concert to drive temperature preferences in the fruit fly Drosophila by affecting a single target, a heavy bundle of neurons within the fly brain known as the mushroom body. These nerve bundles, which get their name from their bulbous shape, play critical roles in learning and memory.

The study, published in the January 30, 2013 edition of the Journal of Neuroscience, shows that dopaminergic circuitsbrain cells that synthesize dopamine, a common neurotransmitterwithin the mushroom body do not encode a single signal, but rather perform a more complex computation of environmental conditions.

"We found that dopamine neurons process multiple inputs to generate multiple outputsthe same set of nerves process sensory information and reward-avoidance learning," said TSRI Assistant Professor Seth Tomchik. "This discovery helps lay the groundwork to better understand how information is processed in the brain. A similar set of neurons is involved in behavior preferences in humansfrom basic rewards to more complex learning and memory."

Using imaging techniques that allow scientists to visualize neuron activity in real time, the study illuminated the response of dopaminergic neurons to changes in temperature. The behavioral roles were then examined by silencing various subsets of these neurons. Flies were tested using a temperature gradient plate; the flies moved from one place to another to express their temperature preferences.

As it turns out, genetic silencing of dopaminergic neurons innervating the mushroom body substantially reduces cold avoidance behavior. "If you give the fly a choice, it will pick San Diego weather every time," Tomchik said, "but if you shut down those nerves, they suddenly don't mind being in Minnesota."

The study also showed dopaminergic neurons respond to cooling with sudden a burst of activity at the onset of a drop in temperature, before settling down to a lower steady-state level. This initial burst of dopamine could function to increase neuronal plasticitythe ability to adaptduring periods of environmental change when the organism needs to acquire new associative memories or update previous associations with temperature changes.

###

The study, "Dopaminergic Neurons Encode a Distributed, Asymmetric Representation of Temperature in Drosophila," was supported by the National Institute of Mental Health of the National Institutes of Health (grant number K99 MH092294).


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Scripps Research Institute study shows how brain cells shape temperature preferences [ Back to EurekAlert! ] Public release date: 29-Jan-2013
[ | E-mail | Share Share ]

Contact: Eric Sauter
esauter@scripps.edu
267-337-3859
Scripps Research Institute

JUPITER, FL, January 29, 2013 While the wooly musk ox may like it cold, fruit flies definitely do not. They like it hot, or at least warm. In fact, their preferred optimum temperature is very similar to that of humans76 degrees F.

Scientists have known that a type of brain cell circuit helps regulate a variety of innate and learned behavior in animals, including their temperature preferences. What has been a mystery is whether or not this behavior stems from a specific set of neurons (brain cells) or overlapping sets.

Now, a new study from The Scripps Research Institute (TSRI) shows that a complex set of overlapping neuronal circuits works in concert to drive temperature preferences in the fruit fly Drosophila by affecting a single target, a heavy bundle of neurons within the fly brain known as the mushroom body. These nerve bundles, which get their name from their bulbous shape, play critical roles in learning and memory.

The study, published in the January 30, 2013 edition of the Journal of Neuroscience, shows that dopaminergic circuitsbrain cells that synthesize dopamine, a common neurotransmitterwithin the mushroom body do not encode a single signal, but rather perform a more complex computation of environmental conditions.

"We found that dopamine neurons process multiple inputs to generate multiple outputsthe same set of nerves process sensory information and reward-avoidance learning," said TSRI Assistant Professor Seth Tomchik. "This discovery helps lay the groundwork to better understand how information is processed in the brain. A similar set of neurons is involved in behavior preferences in humansfrom basic rewards to more complex learning and memory."

Using imaging techniques that allow scientists to visualize neuron activity in real time, the study illuminated the response of dopaminergic neurons to changes in temperature. The behavioral roles were then examined by silencing various subsets of these neurons. Flies were tested using a temperature gradient plate; the flies moved from one place to another to express their temperature preferences.

As it turns out, genetic silencing of dopaminergic neurons innervating the mushroom body substantially reduces cold avoidance behavior. "If you give the fly a choice, it will pick San Diego weather every time," Tomchik said, "but if you shut down those nerves, they suddenly don't mind being in Minnesota."

The study also showed dopaminergic neurons respond to cooling with sudden a burst of activity at the onset of a drop in temperature, before settling down to a lower steady-state level. This initial burst of dopamine could function to increase neuronal plasticitythe ability to adaptduring periods of environmental change when the organism needs to acquire new associative memories or update previous associations with temperature changes.

###

The study, "Dopaminergic Neurons Encode a Distributed, Asymmetric Representation of Temperature in Drosophila," was supported by the National Institute of Mental Health of the National Institutes of Health (grant number K99 MH092294).


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AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert! system.


Source: http://www.eurekalert.org/pub_releases/2013-01/sri-sri012913.php

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Teacher donates kidney after seeing Facebook plea

Any parent of grade-school-age kids knows that it takes a saint to be a teacher. Now a teacher from Kentucky is proving that yet again by volunteering to donate one of her kidneys to a complete stranger.

Twelve months ago, John Desmond, a father of two, came down with bacterial meningitis, which shut down his kidneys and left him in need of a donor. His siblings weren't a match, and his wife, Tina, desperately pleaded on Facebook for a donor to come forward. Amazingly, somebody did: Buffy Sexton, a seventh-grade science teacher and a complete stranger to Desmond.

Sexton saw the post on Facebook when a friend shared it. After months of testing, she learned she was a perfect match. She'll need to be out of the classroom for about a month to recover, but surgeons have agreed to tape the procedure so she'll be able to use it as a lesson when she returns.

Do you know of a selfless act performed by a teacher? Share it with us on our Facebook page or by following us on Twitter @YahooTrending

Source: http://news.yahoo.com/blogs/trending-now/teacher-donates-kidney-stranger-seeing-facebook-plea-202044098.html

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Philips Bows Out Of Consumer Electronics Business

Image (1) philipsdvr1.jpg for post 88274Philips, a brand well known for their televisions and optical media devices, is leaving the consumer electronics market and is now focusing on medical equipment and lighting. The company sold its CE business to the Japanese manufacturer Funai Electric Co. for $201 million.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/Pdes6nKxZFo/

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Committee Formed to Create Plan for Land Use ... - Key Real Estate

Senior officials from across the government have stared drafting a master plan that aims to map out the future locations of everything from roads to cities and development zones across the country.
Land Management Minister Im Chhun Lim chaired the first meeting of a 20-member National Committee for Land Management, Urban Planning and Construction last week in order to push ahead with the plan, said Beng Hong Socheat Khemro, spokesman for the Ministry of Land Management.
?Urban planning and Land management is a very big job that can not be done by a single ministry,? Mr. Socheat Khemro said. ?It?s time for the establishment of this committee to improve our work.?
Officials at local NGOs that follow land issues closely ? Adhoc, Licadho and the NGO Forum ? said they knew nothing of the new committee. The groups have complained for years that the government has been pursuing policies regarding land at the cost of rampant deforestation and forced evictions.
Nicolas Agostini, a technical assistant for Adhoc on land and resource rights, urged the government to work closely with donor countries, NGOs and Local communities while putting the national plan together.
?A lack of consultation in the process of drafting a national land-use plan may lead the government to adopt a sub-standard document which could be used to validate evictions and land grabbing and to further threaten the land tenure of the most vulnerable people,? he said.
?Conversely, the government would show a political will to find sustainable solutions to the land crisis if it consulted with relevant stakeholders and took the time to make sure the national land-use plan is consistent with the overall legal framework.?
An official at Germany?s foreign development arm, GIZ, said it was already working with authorities in three provinces on local land use plans that will eventually be approved by the new committee and fed into a comprehensive, nationwide plan.
Franz-Volker Mueller, team leader of GIZ?s land rights program in Cambodia, said it had been helping to draw up Battambang province?s plan since 2005 and was ?almost done.? GIZ is also working on similar plans for Takeo and Kompong Chhnang provinces.
Mr. Mueller said the provincial plans lay out the locations of many things, including ?roads, electrical lines, settlements and where to put which settlements.
?It?s a very comprehensive plan,? he said. ?It clearly sets targets where development should take place.?Source: The Cambodia Daily

Source: http://keyrealestate.com.kh/committee-formed-to-create-plan-for-land-use-nationwide/

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Tuesday, January 29, 2013

Teen's Choking Game Death Leads Mom to Education Effort ...

Since Jeana Monroe?s 15-year-old son RJ Moore died on Dec. 4, she?s been driven to educate people about what the choking game is so that teens stop dying from playing it.

RJ died as a result of playing a choking game, which is a way to experience a kind of high by depriving the body of oxygen to the point of fainting. While the game is certainly dangerous even with others to act as a safeguard, for RJ, the game turned deadly.

?They play it at parties? and it?s a regular habit of these kids, but us parents don?t know anything about it or if we do know about it we think that it won?t happen to our child,? Jeana said.

Medical examiner Tom Terry told Jeana that while RJ died by playing the choking game, there?s no code for this type of death and officially his death was ruled accidental, but the cause was ?probable to choking game.?

This designation is cause for concern for Jeana because the Center for Disease Control doesn?t have a code for keeping track of how many people die of the choking game, but there?s a petition circulating to change that.

?So many kids have died of this, but there are no stats to keep track of it,? she said. ?So we have no idea how many kids are dying from it, but it seems to me that it?s a silent epidemic.?

The details surrounding RJ?s death haunt Jeana. She remembers where the chairs were positioned in his room, the type of belt he used and how the belt was positioned around his neck. But she also remembers how much RJ loved his brothers.

?My kid was such a good kid,? Jeana said. ?We re-did his room to help with the healing process and his little brother Maxwell, who just turned two, keeps wanting to go in there. He says he needs to go see angel and he?ll go in there and just sit in the room and say, ?I see angel, I see angel.?

?You have to wonder, does he see something??

Living with a broken heart, Jeana is dedicating her time and energy to educating parents and teens. She thinks about the signs that RJ was displaying that, if she would have known more about it, would have told her he was playing the choking game: the red marks on his neck, his bloodshot eyes, complaints of stomachaches and headaches, the wear marks on his bed posts, and the fact that he kept asking for belts, but didn?t wear them.

?A lot of schools are afraid to mention this because they think they are giving ideas to our children, but the truth is that they already know what it is and we?re doing a disservice to them in not talking about it,? she said.

And she doesn?t want other parents to go through what she?s going through.

So in her mind?s eye Jeana can see herself making a commercial ? a public service announcement ? warning kids about the dangers of the choking game. She would introduce herself and tell people about RJ. She would tell them about what the choking game is and how it?s not cool to do because when her son did it, he died.

?When you go through something like this, your heart is just broken,? Jeana said. ?If kids won?t listen to anything else, I wish they would just know this ?you could potentially ruin your family. I?m never going to be the same again.?

A benefit, which is being held to raise awareness of what the choking game is and to raise money to help pay for the hospital bills from RJ's death and to pay for funeral expenses, will be held from 4 to 10 p.m. Feb. 2 at Bar 525, 525 Wisconsin Ave.

Source: http://caledonia.patch.com/articles/teen-s-choking-game-death-leads-mom-to-education-effort

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Monday, January 28, 2013

Surviving band member leads police to bodies

MONTERREY, Mexico (AP) ? The Colombian-style music group was playing at a ranch in northern Mexico when at least 10 gunmen entered the warehouse where the private party was being held and forced them and several crew members into waiting vehicles, a survivor of the attack told authorities.

Nuevo Leon state security spokesman Jorge Domene said the survivor, a member of the Kombo Kolombia band, told police the 18 were blindfolded and driven on dirt roads until they stopped. He then heard the assailants ask fellow band members if they belonged to a drug cartel, shots were fired and the bodies were dumped into a well.

Domene said the survivor, who is being protected by soldiers, was able to reach a nearby ranch and get help. He wouldn't give details on how the man was able to escape.

The man later led authorities to the well where searchers found several bodies, Domene said.

Domene said four bodies first pulled from the well on Sunday have been identified by their relatives, including a Colombian citizen who played the keyboard. Three of them were wearing matching T-shirt with the name of the band.

"The search will continue ... to see how many more bodies may be hidden there," he said.

By Monday afternoon, searchers had pulled 12 bodies from the well along a dirt road in the town of Mina, about 140 miles (225 kilometers) from Laredo, Texas, Domene said.

The bodies recovered showed signs of torture, said a forensic official, who spoke on condition of anonymity because he was not authorized to comment publicly on the case.

It was hard to determine how many more bodies were submersed in the water, he said.

Authorities initially said 16 members of the band Kombo Kolombia and four crew members were reported missing early Friday after playing at a private party attended by about 50 people and held at a ranch called La Carreta, or The Wagon, in the town of Hidalgo north of Monterrey.

But Domene said Monday 18 band members had gone missing. He didn't say how many were crew members and how many were musicians.

The party guests are being questioned and police have yet to determine a motive in the killings, Domene said.

Nuevo Leon state, on the border with Texas, has been the scene of a turf battle between members of the Gulf drug cartel and the Zetas drug gang. The Zetas were hit men for the Gulf cartel until they split in 2010, unleashing their bloody war.

People living near the ranch in Hidalgo reported hearing gunshots at about 4 a.m. Friday, followed by the sound of vehicles speeding away, said a separate source with the Nuevo Leon State Investigative Agency. He also spoke on condition of anonymity because he was not authorized to be quoted by the news media.

The officials added that gunfire is common in the area and said investigators found spent bullets nearby.

Relatives filed a missing persons report on Friday after losing cellular phone contact with the musicians. When they went to the ranch to investigate, they found the band members' vehicles still parked outside.

Kombo Kolombia has played a Colombian style of music known as vallenato, which is popular in working class neighborhood in the city of Monterrey and other parts of Nuevo Leon state. Most of the group's musicians were from the area, except for the keyboard player who is Colombian and had Mexican residency, Domene said.

The band regularly played at bars in downtown Monterrey on the weekend. At least two of the bars where they had played had been attacked by gunmen.

It was Mexico's largest single kidnapping since 20 tourists from the western state of Michoacan were abducted in Acapulco in 2010. Most of their bodies were found a month later in a mass grave. Authorities said the tourists were mistaken for cartel members.

Members of other musical groups have been murdered in Mexico in recent years, usually groups that perform "narcocorridos" that celebrate the exploits of drug traffickers. But Kombo Kolombia did not play that type of music, and its lyrics were about love and heartbreak and did not deal with violence or drug trafficking.

But singers of drug exploits are not the only musicians targeted, said Elijah Wald, author of the book, "Narcocorrido: A Journey into the Music of Drugs, Guns and Guerrillas."

"There is really not correlation. Drug guys hire people to play for their parties and they hire whatever is happening," he said. "Sergio Gomez, the single-most famous singer killed from K-Paz de la Sierra, his big hit was a version of 'Jambalaya.'"

Gomez was kidnapped and found strangled and tortured in 2007 in the western state of Michoacan, a day after Zayda Pena of the group Zayda and the Guilty Ones was shot in a hospital while recovering from a separate bullet wound in the border town of Matamoros, across from Brownsville, Texas.

Valentin Elizalde, "El Gallo de Oro," was shot to death along with his manager and driver in 2006 following a performance in Reynosa, across the border from McAllen, Texas. Norteno singer Sergio Vega was shot dead in a northern state of Sinaloa in 2010.

"A lot of people are being killed because they're in the wrong place at the wrong time and musicians are some of the people on that list," Wald said.

Source: http://news.yahoo.com/surviving-band-member-leads-police-bodies-002521417.html

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Website Promotion is Important | Pinay Reviewer - Product Reviews

If you?re not yet aware, aside from being a blogger and social media manager, I am also a freelance web designer. Because of my hectic schedule, I have only dealt with a couple of web design clients and it?s alarming to know that most of them think putting up a website or an online space for their business is enough.

Online Marketing Techniques

As an online marketer, I know for a fact that with the tons of competing websites being launched every single day, the chances of your business? website to be noticed is decreasing by the day. And if you are not familiar with how the internet works, especially social media, then, you should hire an expert to help you out.

Once your website is up and running, one of the important steps you can take in promoting it online or being seen is through SEO directory submission. This will definitely boost your business? online presence.

When I started blogging, I honestly had no idea about the impact of directory or even search engine submissions. I?m just lucky to have such curiosity in SEO that I learned about the small tasks you can do regularly to promote your business and website online.

This is why I love my job as a social media manager. Somehow, there?s SEO involved. I help clients reach an audience who are ready to be engaged ? those who already liked them on Facebook, followed them on Twitter or Google+, or added them to their lists on Foursquare. We want to keep our connection with them and hopefully, they?ll spread the word about our clients.

I enjoy the more personal approach of social media marketing. It?s important to note that businesses can get a lot of valuable feedback and information through their social media channels.

Moving forward, I hope more business owners will realize the power of social media marketing and website promotion in helping them drive more sales to their business. It?s a big, big online world out there, don?t you agree?


Source: http://www.pinayreviewer.com/website-online-promotions/

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Sunday, January 27, 2013

The Home She Made: Family Holiday Preparation

The car is all clean and packed and we are about to head away for a family holiday. Hubby doesn't have to return to work til mid February so we thought we'd take the chance to get off the farm and head to the beach. It certainly is a blessing having a swimming pool and an airconditioned home, as if not, I would have been itching to get to the coast?weeks ago.?

Whilst it is really nice to go with the flow and not have too many concrete plans for holidays, I like to be prepared and make a very rough outline for meals and a list of activities for our time away. I like to arrive at our self contained holiday accomodation knowing we have some supplies with us without having to rush off to the store and I find it much more budget friendly. Obviously we will be eating out or having takeaway a few times but not everyday or for every meal. Prior to leaving, I've stocked up on the follow items to take with us:

  • breakfast items - cereal; juice; coffee; tea; sugar?
  • fruit; salad?
  • kids share packs and juice boxes
  • crackers; biscuits; chips
  • BBQ meat and condiments
  • Picnic supplies - plates; cups; napkins etc?

I've also been baking and have made mini quiche; muffins and chocolate snowballs to take with us. We take a small esky with us for the frozen BBQ meat; quiches; muffins; salad and fruit.?

The little boys and I have also made a list of potential activities for us to do together whilst we away. Some of the ideas we came up with were:?

  • fish + chips at the beach?
  • indoor playground/play center?
  • picnic
  • play at the park?
  • milkshake dates
  • out for dinner
  • shop for school supplies?
  • beach scavenger hunt?

I have packed a small collection puzzles; games; colouring-in and DVD's for the boys too. I've tried to choose ones they've not played with for a while or are favourites that I know will hold their attention. We have also packed their scooters. I'm sure as they get older we will be taking their bikes but for now scooters are something they enjoy and bonus, they pack down small in the car.?

Very much looking forward to some family time away together and hope to have lots of lovely happy snaps to share with you soon.?

Source: http://www.thehomeshemade.com/2013/01/family-holiday-preparation.html

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'American Pie' singer fined for speeding in Maine (Providence Journal)

Share With Friends: Share on FacebookTweet ThisPost to Google-BuzzSend on GmailPost to Linked-InSubscribe to This Feed | Rss To Twitter | Politics - Top Stories Stories, RSS Feeds and Widgets via Feedzilla.

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What is it? Social Cells

Dictyostelium discoideum, social cells, amoeba, slug, D. discoideum Social cells: The slime mold Dictyostelium discoideum spends much of its time as an apparently typical microscopic single-celled amoeba, oozing around in wet soil as it grazes on bacteria. Something truly odd happens, however, when the food runs out. Starving D. discoideum band together to form a conglomerate organism. A multicellular slug of sorts, the group grows into a spore-making tower, a beacon for sending amoebae out to richer grounds. The sudden lifestyle change is interesting enough, but the real evolutionary puzzle is the cells that make up the delicate stalk. They die without reproducing, which means cells at the top of the tower can turn into more effective spores. This form of altruistic sacrifice has fascinated biologists for decades. (It appears that related amoebae are more likely to group together, so even the dying cells get to pass on their genes.) Here is an organism that is both solitary and fully, suicidally social, a nearly perfect model creature for understanding how multicellular life emerged from the amoebae. In this shot, a slice through a culture dish, you can see a progression of slugs into towers.

Image: Alex Wild

Source: http://rss.sciam.com/click.phdo?i=bc7d0588624d48413ef030b006140b27

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Fears grow that Libya is incubator of turmoil

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

They already have a free rein in Benghazi.

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

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

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

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

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

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

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

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

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

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

Source: http://news.yahoo.com/fears-grow-libya-incubator-turmoil-195835295.html

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American Horror Story, Season 2

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Jessica Lange as Sister Jude.?

FX

In this week?s finale episode of American Horror Story: Asylum, we learned that Lana Winter?s ticket to fame was not her journalistic writing, as she had originally planned, but her skill brandishing a microphone on camera. After exposing the decrepitude of Briarcliff in prime time to much acclaim, Lana became the host of a ?gotcha? news magazine show called America Unmasked. It?s almost too perfect, that show title: Transpose that kind of probing to the darker elements of American mythology, and you?ve got an ideal tagline for AHS in general.

Lana said in her Kennedy Center Honors interview that she wanted ?to take America inside the asylum??exactly what AHS helmsmen Ryan Murphy and Brad Falchuk did this season. Except that in their narrative sanitarium, the cells don?t just house ?visually stimulating? crazy people; the truly scary things living here?stuffed under the mattress next to Shelley?s cucumber, perhaps?are far less ?entertaining? and far more uncomfortably familiar. They are the creaks and groans that haunt our collective American dream.

Given the admittedly exhausting buildup of storylines and characters we saw in the middle of this season, it?s easy to forget some of the real horrors that AHS critiqued. For starters, take the racism invoked by the response to Kit and Alma?s union, or the chillingly nonchalant homophobia directed towards Lana and Wendy. But those monsters seem almost cuddly when compared to the portrait of America?s atrocious relationship with mental illness that the show so graphically presents, and which has recently been highlighted by discussions surrounding the Newtown shootings. True, institutions like Briarcliff Manor have mostly been shuttered over the past half-century, but our struggle to treat mentally ill people as worthy, nuanced human beings lives on, even if under a more politically correct veneer. Don?t forget: After 13 episodes of exploitative, sometimes nauseating images of human misery, we were left with no clear salvation for the residents of Briarcliff who supposedly ?deserved? to be there. They simply disappeared, and any pleasure we took in those images should be on our consciences; though I doubt that few even thought, like Jen Chaney did in our chat, of their fates. I know I didn?t.

If this sounds a little preachy, forgive me. I?m only trying to counter the prevailing opinion that American Horror Story is just a madcap entertainment with a void at its core. Quite the contrary: If taken seriously (which, admittedly, Murphy and co. sometimes make difficult), it seems to me to be one of the most ethically weighty shows on television. Both seasons thus far have encouraged?at times even demanded?that we ask awkward questions about specters that haunt the American landscape: school shootings, women?s reproductive rights, treatment of the mentally ill?the list goes on. And it?s probably no accident that both seasons have featured a protagonist whose profession?an investigative reporter and a psychiatrist?involves digging below the surface of things, often finding something unsavory (as Lana literally did in the finale) underneath. Taking AHS for nothing more than a creepy romp is the laziest way to engage with it; remove that mask (or that skin, if you like) and things get richer and a heck of a lot more complicated.?

In the end, though, American Horror Story does not seem terribly interested in answering the questions it raises within its fundamentally dark view of American life. We could take this as simply disturbing, or we could go further and wonder whether those questions have answers at all. But either way, AHS has done its mirror-wielding work. Sister Jude said it best: "If you look in the face of evil, evil?s gonna look right back at you."

Source: http://feeds.slate.com/click.phdo?i=33cdd9666077b06f33cde575c39f2768

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Celebs now fashionable targets in hoax 911 calls

LOS ANGELES (AP) ? Celebrities have long contended with the occasional downsides of stardom ? tabloid scandals, stalkers, box office bombs, the paparazzi. Now, add "swatting" to the list ? a prank that sends police charging to the gates of stars' homes on false reports of gunmen, hostages or other crimes in progress.

Instead of bad guys, responding officers, police dogs, helicopters and sometimes SWAT teams have found only stunned domestic and security staff unaware of any trouble ? because there wasn't any.

The recent hoax 911 calls to the homes of Tom Cruise, Justin Bieber, Ashton Kutcher, Chris Brown and other stars are leading authorities to eye some 911 calls with extra suspicion and lawmakers to call for stiffer penalties for the pranksters.

"This is a very vexing problem that needs to be fixed at the early stages," said California State Sen. Ted Lieu, who is proposing tough consequences, including hefty fines, for those caught swatting. "If this isn't resolved, this will result in a tragic situation."

Swatting is the rare trend that actually didn't start in Hollywood. Authorities in Dallas, Washington state, Alabama and elsewhere have arrested teens and young men for bogus 911 calls that have drawn large police responses and in some cases, resulted in innocent people being detained by police.

The term comes from the pranksters' desire to have heavily armed special weapons teams dispatched to their calls. That doesn't always happen, but the calls tie up resources ranging from dispatchers, patrol officers, helicopters, detectives and cyber-crime specialists.

The Beverly Hills Police Department estimated more than half of its emergency resources were occupied with the Cruise swatting call on Jan. 17. It was just one of a rash of calls aimed at celebrities over the next several days, including a false claim there was a domestic violence incident at Brown's home.

"We're getting much better at deciphering what is real and what is not," said Steve Whitmore, a spokesman for the Los Angeles County Sheriff's Department. The agency has handled calls at Bieber's home and a former Kardashian family home.

Patrol units will check out every call but will hold off calling in the big guns until signs of an actual crime emerge, he said.

Authorities in the Los Angeles area are concerned that the high-profile calls against stars are inspiring copycats who perhaps notice the immediate attention swatting incidents command on tabloid news sites.

Los Angeles police Cmdr. Andrew Smith said the department has seen an increase in the number of swatting calls since last year, when stars such as Kutcher, Bieber and Cyrus were targeted.

"People are jumping on the bandwagon thinking it's funny or a clever or interesting," Smith said. The calls aren't just tying up patrol officers, but also investigators probing the pranks who could be assigned to larger crimes.

"The last thing we want to have our detectives do is spend a bunch of time on a foolish prank like this," he said. "We want our detective handling robberies, burglaries and other crimes."

Police arrested a 12-year-old boy in December who is suspected of placing swatting calls at numerous homes, including Kutcher's. That call brought out many heavily-armed officers and prompted the actor to leave the set of "Two and a Half Men" to make sure his home and workers were safe.

Prosecutors are still evaluating potential charges against the boy.

"If we catch you, and we're going to catch you, you're going to be prosecuted," Smith said. "We've got some pretty clever detectives in this department. They'll find out who did these things."

There are also concerns that swatting will lead officers to treat certain 911 calls differently.

"At some point, we don't want law enforcement to feel like this is another cry-wolf situation," Lieu said.

Smith said that's a possibility, but he said officers are being told to treat all 911 calls with caution, even if they know they're traveling to a celebrity's home and the call has the traits of a prank.

The California bill, which is also being proposed by Assemblyman Mike Gatto, would increase the penalties for convicted swatters to up to three years in jail if someone was hurt as a result of their call, and also make them responsible for the costs of the emergency response.

Whitmore and Smith said they did not have precise estimates for how much swatting calls cost, and it does not appear any agency is tracking the phenomenon nationwide.

The term swatting was coined by the Dallas FBI office a few years ago after its agents busted a group responsible for 60 hoax calls around the nation. The group's leader was sentenced to more than five years in prison and ordered to pay more than $75,000 in fines, although most swatting calls are handled by local authorities.

Hoaxers often use a computer and programs available online to trick 911 systems into thinking the distress calls are coming from the address where officers are dispatched, even though the prankster may be miles, or several states, away.

Although the use of Internet phone providers can make it harder to track the callers, "nothing on the internet is ever terribly secret," Smith said. "There's always going to be a trail,"

Spoofing a phone number is legal and used for many legitimate business purposes, but it has become a favorite technique of pranksters to harass strangers or send pizza deliverymen or locksmiths to unwitting targets' homes.

Dr. John Grohol, a research psychologist who studies internet behavior and founded the online community PsychCentral.com, said the motivation for celebrity swatting may be rooted in the hoaxers desire to impact the stars' lives and gain notoriety for themselves in online communities.

"You have to kind of look at it from the perspective that most people don't have a lot of opportunity to affect a celebrity's life directly," Grohol said. "This is a way that a person can feel empowered."

___

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

Source: http://news.yahoo.com/celebs-now-fashionable-targets-hoax-911-calls-150505911.html

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Saturday, January 26, 2013

Un peu de math...: A review of a book about Teaching and Learning

"Approaches to Learning: A Guide for Teachers" by Jordan et al.
This is the 3rd post in my blog series reviewing a bunch of education literautre. The other posts can be found here:
  1. "When good teaching leads to bad results: The disasters of well taught Mathematics courses" by Alan Schoenfeld
  2. "A quick-start guide to the moore method" by Mahavier et al.
  3. "The inverted classroom in a large enrolment introductory physics course: a case study" by Simon Bates and Ross Galloway
For the first time I've reviewing an entire book: The book looks at various aspects of learning, indeed the early chapters talk about various pedagogic models as well as educational philosophy. It is well written and has a great conclusion section at the end of every chapter highlighting some of the main ideas and implications for educators.

Here's a list of the Chapters (I'm not going to get sued for that right?):

  1. Philosophy of education
  2. Behaviourism
  3. Cognitivism
  4. Constructivism
  5. Social Learning
  6. Cultural Learning
  7. Intelligence
  8. Life course development
  9. Adult learning
  10. Values
  11. Motivation
  12. The learning body
  13. Languages and learning
  14. Experiential and competency-based learning
  15. Blended learning
  16. The future
As you can see it covers quite a lot of stuff. The first chapter describes Educational Philosophy and covers ideas such as Empiricism and Socratic dialog. I enjoyed reading this chapter quite closely as I hadn't thought philosophically about education in a rigorous way before.

I posted one particular quote I liked here on G+:

"Even in distance or online learning contexts, it is important to create a learning environment that allows for the possibility of multiple interpretations in order to guide learners towards a better understanding of concepts."
I liked the quote but asked if it was relevant to Mathematics, is there room for interpretation in the meaning of a theorem?

+Theron Hitchman?responded by saying that in fact he often discussed the interpretation of everything in class, including theorems (Theron, I apologise for paraphrasing you). I thought that was pretty cool as it must be an immediate way to gain feedback as to the understanding of theorems (not just their proofs).

I've read the first 4 chapters pretty closely and there are some great things in there. In particular I think it's helped me identify myself as a Social Constructivist and I like the idea of a Zone of Proximal Development described by Vygotsky.

I've actually attempted (with quite a low level of confidence) to "summarise" the first 4 chapters in the following picture:

There's obviously far too much in this book for me to review it in further details but other chapters I though were interesting included the blended learning chapter which talks about the use of technology in the classroom (although most of the stuff in there is pretty basic I feel). The final chapter talks about what the Teacher of the future "will be". I won't say anymore but I'll just put down one quote that I thought was awesome:
"If knowledge can be accessed in a multiplicity of ways, then learners will choose teachers for their ability to engage, both with the knowledge and the learning. It will require a different set of aptitudes from the teacher, requiring artistry rather than a set of technical skills. Teachers will have a role in motivating learners through personal coaching, and in scaffolding support learners in their personal projects. Teachers will be freed from knowledge transmission or duplication, to act as critical friends and guides for learners."
Conclusion

I think this book really is great. Lots of stuff in there looking at various aspect of teaching and learning. Further more each chapter has a bunch of other references which prove the book to be a great reference text to have on my bookshelf (shame that there's no kindle edition...).

Here's my "PCUTL Mark" out of 10 which I'm using to say how useful this piece of literature is to me in the scheme of my pcutl portfolio (so it's not meant as a reflection of the quality of the paper which is subjective):

PCUTL Mark: 9 (As far as utility to my portfolio is concerned, I doubt I'll find more useful as I need to specifically consider various pedagogic models which are all nicely explained in this book.).

Source: http://drvinceknight.blogspot.com/2013/01/a-review-of-book-about-teaching-and.html

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Arts and Entertainment: Theaters in the Great Washington DC Area

Washington DC is a town loaded in history and culture and is home to 1 or 2 of the states most major and famous theaters and concert halls. While there happen to be a variety of performing arts centers, theaters and concert halls in Washington DC to make a choice between the following theaters. They are the best this town has to give.

The John F. Kennedy Center for the Performing Arts

John F. Kennedy spoke of the importance of making contributions to the human spirit and today his inheritance is stronger than before. The John F. Kennedy Center for the Performing Arts opened in Sep of 1971 and still today remains one of the premier theaters in Washington DC, illustrating famous abilities from the realms of the dramatic humanities, musicals, as well as dance and ballet. In addition the Kennedy Center has hosted in its concert hall a spread of musical and chamber music.

Ford's Theater

Most famously called the location where President Lincoln was murdered in 1865, Ford's Theater essentially holds the title for the Washington DC theater with the richest history. Today, Ford's Theater brings in more than 1,000,000 visitors annually. The Ford's Theater Society has performed plays in this theater since its reopening in 1968 and since that time the theater has been home to several nationally commended and world premier productions.

Arena Stage

Due to its impecable organization, regarding the growing, the understanding, the showing and the production of the American theater, the Arena Stage is now considered one of the top theaters in Washington DC.

The National Theater

The National Theater, which opened for business in 1835, is commonly called the "Theater of Presidents" because of the fact the theater has hosted each US President at some particular point in their regime. Additionally, the National Theater holds the record for presenting the most first-class productions gradually longer than any other theater in the country.

Shakespeare Theater Company

The Shakespeare Theater Company is a dedicated classical theater in Washington DC and is striving to become the best classical theater in the country. The theater is famous both nationally and overseas as among the top 3 foremost Shakespearean theaters in the country. The Shakespeare Theater Company has won 59 Helen Hays Awards in the past twenty-one years, as well as countless Outstanding Director awards.

Source: http://aae4u.blogspot.com/2013/01/theaters-in-great-washington-dc-area.html

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Friday, January 25, 2013

US sees signs that China is tiring of North Korea's antics

North Korea is sending out dire threats daily and could carry out a nuclear test. Even China, North Korea's strongest ally, is increasingly willing to cooperate with the US to chasten the rogue nation.

By Howard LaFranchi,?Staff writer / January 25, 2013

US Special Representative for North Korea Policy Ambassador Glyn Davies speaks to journalists in Beijing Friday. Davies is in Asia for talks on how to move forward on North Korea relations.

Ng Han Guan/AP

Enlarge

US officials are taking heart in mounting evidence that China, while still worried about the repercussions of a North Korean collapse, is tiring of protecting its troublesome ally.

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Though wary of each other on other international issues, the United States and China are demonstrating renewed cooperation as North Korea ratchets up its belligerence with threats of an imminent nuclear test.

First, the two world powers reached a compromise that allowed unanimous passage earlier this week of a UN Security Council resolution condemning a? December long-range rocket test and tightening sanctions ? a vote that prompted North Korea to threaten ?all-out action? against ?big countries.?

Then at talks in Beijing on Friday, the US envoy for North Korean issues, Glyn Davies, said that the US and China ?achieved a very strong degree of consensus? on how to confront North Korea?s latest threats.

That comment came as Beijing?s Global Times newspaper, which is aligned with China?s ruling Communist Party, said in an editorial Friday that ?if North Korea engages in further nuclear tests, China will not hesitate to reduce its assistance" ? an unusually blunt warning.

Passage of the UN resolution and other signs of growing international unity suggest Pyongyang should consider itself on notice, some regional analysts say.

?A new game is on with North Korea,? and this week?s UN resolution ?indicates that any new nuke test or missile launch will bring yet another round of even stronger and more targeted sanctions,? says George Lopez, a former UN monitor of North Korea sanctions and a professor of peace studies at the University of Notre Dame in South Bend, Ind.

The new environment ?is both the best and the worst for the Obama administration,? Professor Lopez says: The ?worst? because any a nuclear test would lead to Republican criticism of his foreign policy, but the ?best? because a test would almost certainly present Obama with the ?opportunity? to show that the world ? including the Chinese and Russians ? is ready for ?meaningful united action.?? ??

Some analysts speculate that Pyongyang is willing to risk a round of tougher sanctions because its 2012 harvest was better than anticipated. The new round of belligerence, particularly towards the US ? which it labeled ?the sworn enemy of the Korean people? this week ? may be aimed at rattling the US into direct talks.

The ultimate goal of the North?s dictatorial regime is to achieve recognition from the US and to sign a non-aggression treaty with Washington, analysts say.

But there also could be technical reasons for carrying out another nuclear test, nuclear experts say. The North may want to see if it has successfully miniaturized the crude weapons of tests in 2006 and 2009, they say. In addition, after last month?s long-range rocket test, a nuclear test might be aimed at demonstrating that the country is capable of mounting a weapon on a missile.

Lopez says he expects the climate around the North Korea issue to ?get a little more dangerous ? before it has a chance to get better.? He expects a nuclear test sometime in the next three months, which he guesses will lead to tough new sanctions, and then a return to six-party talks on the North?s nuclear program.

While he doesn?t want to downplay the risks ahead, Lopez points out that North Korea is ?years away? from ?taking an explosive device and successfully putting it on a missile,? according to nuclear experts.

Source: http://rss.csmonitor.com/~r/feeds/csm/~3/kwFsy39gAdU/US-sees-signs-that-China-is-tiring-of-North-Korea-s-antics

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Sundance: 'American Promise' offered filmmakers unusual access ...

(Courtesy photo) Idris Brewster and Oluwaseun (Seun) Summers in ?American Promise.?

Sundance: ?American Promise? offered filmmakers unusual access ? to their son

Sundance ? The film chronicles two Brooklyn boys over 12 years.

Few people wait longer to star in a Sundance film than Idris Brewster. It?s been 13 years since his parents, Joe Brewster and Mich?le Stephenson, began filming the documentary that turned into "American Promise."

"From when I can first remember, I had a camera around me. So I don?t think I had a choice," Idris Brewster said.

?

?American Promise?

The documentary screens Wednesday, Jan. 23, 7 p.m. at Redstone Cinema 2, Park City; Thursday, Jan. 24 at 2:45 p.m., Broadway Center Cinema 6, Salt Lake City; Friday, Jan. 25, 11:15 a.m., the MARC, Park City; Saturday, Jan. 26, 3 p.m., Yarrow Hotel Theatre, Park City.

The documentary will air either later this year or in early 2014 on PBS?s ?P.O.V.?

Shot over 12 years, "American Promise" follows Idris and his best friend, Oluwaseun "Seun" Summers ? a couple of Brooklyn kids ? as they attended the prestigious, historically white Dalton School on the Upper East Side of Manhattan. Gifted students, Idris and Seun soon faced new challenges, as did their parents.

Joe Brewster, a Harvard- and Stanford-trained psychiatrist, and his wife, Mich?le Stephenson, a Columbia Law School graduate and filmmaker, began working on the project in 1999. It?s about growing up, as well as class, gender and generational issues, with a particular focus on African-American boys. "I think when we started, we didn?t really know what this journey was going to be," Stephenson said.

And they didn?t really begin to decide when they began the editing process, about a decade after they began filming. They had acquired 800 hours of footage, and the first draft of the film came in at about 32 hours. Now it screens at 142 minutes.

The filming took place over a dozen years, but sporadically. "It?s not like we had the camera on [on] a consistent or constant basis," she said. "It was a very structured thing and as discreet as possible."

But not always discreet enough for her son once he hit high school."I didn?t want to be that kid with the camera following me around," Idris Brewster said. "But now, in retrospect, I?m really glad. And I?m coming to terms with people knowing me from the movie, and I?m ready to enjoy it."

This isn?t a look back through rose-colored glasses. Joe Brewster and Stephenson aren?t perfect parents, and the film reflects that.

"There were times when we were looking at the footage and wondering, ?Did I really say that to my son???" Joe Brewster said. "And then to have the editors tell you that you need to improve on your parenting skills, that was a bit much."

According to Idris Brewster, a lot was expected of him by his parents and the Dalton School. "My parents have always been hard on me, so I was sort of used to it," he said. "But there were a lot of sobering moments where it was just hard and I didn?t want to do it anymore. But I stuck with it."

story continues below

It couldn?t have been easy when your father "went into this process thinking that our son would graduate summa and become president of the United States of America," Joe Brewster said. "And only after a number of years into the process we began to tamp down on our expectations."

Brewster?s and Stephenson?s feature film "The Keeper" premiered at the Sundance Film Festival in 1996, and they?re elated to be back with "American Promise." They rented a house, and about 20 people who participated in the film in one form or another are joining them to celebrate. "It?s really a validation of this long process, and we are just beside ourselves with this opportunity," Stephenson said.

spierce@sltrib.com

Copyright 2013 The Salt Lake Tribune. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Source: http://www.sltrib.com/sltrib/entertainment2/55659319-223/brewster-film-idris-stephenson.html.csp

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Smokers who quit before age 40 have lifespan almost as long as people who never smoked

Jan. 23, 2013 ? Smokers who quit when they are young adults can live almost as long as people who never smoked, groundbreaking new research has found.

Smoking cuts at least 10 years off a person's lifespan. But a comprehensive analysis of health and death records in the United States found that people who quit smoking before they turn 40 regain almost all of those lost years.

"Quitting smoking before age 40, and preferably well before 40, gives back almost all of the decade of lost life from continued smoking," said Dr. Prabhat Jha, head of the Centre for Global Health Research at St. Michael's Hospital and a professor in the Dalla Lana School of Public Health at the University of Toronto.

"That's not to say, however, that it is safe to smoke until you are 40 and then stop," said Dr. Jha. "Former smokers still have a greater risk of dying sooner than people who never smoked. But the risk is small compared to the huge risk for those who continue to smoke."

His findings were published January 24 in the New England Journal of Medicine.

Dr. Jha's team found that people who quit smoking between ages 35 and 44 gained about nine years and those who quit between ages 45-54 and 55-64 gained six and four years of life, respectively.

The study is unique as it examines the risks of smoking and the benefits of stopping among a representative sample of Americans. Earlier studies had examined specific groups such as nurses or volunteers who are healthier than average Americans overall. Importantly, the study is among the first to document the generation of women who started smoking when they were young and kept smoking through their adult lives.

"Women who smoke like men, die like men," Dr. Jha said. For women, the risks of dying from smoking-related causes are 50 per cent greater than found in the studies conducted in the 1980s.

Women and men who smoke both lost a decade of life. Current male or female smokers ages 25-79 had a mortality rate three times higher than people who had never smoked. Never smokers were about twice more likely to live to age 80 than were smokers.

This study adds to recent evidence from Britain, Japan and the United States that smoking risks involve about a decade of life lost worldwide. This includes a review of 50 years of smoking mortality in the United States published in the same issue of the New England Journal of Medicine and led by Dr. Michael J. Thun and other researchers from the American Cancer Society.

While about 40 million Americans and 4 million Canadians smoke, most of the world's estimated 1.3 billion smokers live in low- and middle-income countries. Worldwide about 30 million young adults begin smoking each year (about half of all young men and 10 per cent of young women) and most do not stop.

In many high-income countries more than half of people who ever smoked have quit, cessation remains uncommon in most low- and middle-income people. On current trends, smoking will kill about 1 billion people in the 21st century as opposed to 'only' 100 million in the 20th century.

Professor Amartya Sen, the noted Harvard University economist who won the 1998 Nobel Prize in economics, said "the inability to develop an appropriate public policy about smoking has been one of the bigger failures of public action in India, China and most other developing countries, in contrast to strong tobacco control in most western countries.

"This study brings out how great the threat actually is, and shows that risks of death from smoking are even larger than previously thought," said Professor Sen, who was not involved in the study. "The result is of great global significance."

Dr. Jha noted that smoking rates in the United States, China and India would decline much faster if their governments levied high taxes on tobacco, as seen in Canada and France. Taxation is the single most effective step to get adults to quit and to prevent children from starting, he said.

Dr. Jha's research used data from the U.S. National Health Interview Survey in which a representative cross-section of the population is surveyed every year about a broad range of health topics. More than 200,000 survey participants were linked to the National Death Index, which includes death certificate information for all Americans since 1986. The researchers related about deaths of about 16,000 people to their past reported smoking.

Dr. Jha advises various governments around the world on disease control strategies. He is the principal investigator of the Million Death Study in India, one of the largest studies of premature deaths in the world.

The research was funded by the National Institutes of Health, the Canadian Institutes of Health Research and the Disease Control Priorities-3 project of the Bill and Melinda Gates Foundation.

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Story Source:

The above story is reprinted from materials provided by St. Michael's Hospital. The original article was written by Leslie Shepherd.

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


Journal Reference:

  1. Michael J. Thun, Brian D. Carter, Diane Feskanich, Neal D. Freedman, Ross Prentice, Alan D. Lopez, Patricia Hartge, Susan M. Gapstur. 50-Year Trends in Smoking-Related Mortality in the United States. New England Journal of Medicine, 2013; 368 (4): 351 DOI: 10.1056/NEJMsa1211127

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

Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/living_well/~3/bj9VVHTi7fM/130124123634.htm

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