Saturday, March 31, 2012

AP sources: Ryan expected to endorse Romney

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Youth Hockey Open Registration | Malden Sports & Recreation ...

Friday, March 30, 2012

PCBs levels down in Norwegian polar bears

PCBs levels down in Norwegian polar bears [ Back to EurekAlert! ] Public release date: 29-Mar-2012
[ | E-mail | Share Share ]

Contact: Bjrn Munro Jenssen
bjorn.munro.jenssen@bio.ntnu.no
479-189-7120
Norwegian University of Science and Technology

Study examined blood level changes in PCBs over a decade

It's never been easy to be a polar bear. They may have to go months without eating. Their preferred food, seal, requires enormous luck and patience to catch. Add to that the melting of Arctic sea ice due to climate change, and the poisoning of the Arctic by toxic chemicals, and it's easy to see why polar bears worldwide are in trouble.

Among all the bad news, however, comes one possible bright spot. In a study of PCBs in polar bear cubs in Svalbard, researchers from the Norwegian University of Science and Technology (NTNU) have found that blood levels of PCBs and related contaminants in polar bear cubs appear to have dropped by as much as 59 per cent between 1998 and 2008. At the same time, levels of these contaminants in their mothers were as much as 55 per cent lower over the same period.

"The levels of PCB compounds in blood samples from females are on the decline," says Jenny Bytingsvik, a biologist at NTNU who is completing her doctoral dissertation on the findings. "For newborn, vulnerable cubs, this is a very positive trend. Reduced levels of PCBs in the mother bears' blood mean that there is also less contamination in their milk. Even though the PCB levels we found are still too high, this shows that international agreements to ban PCBs have had an effect."

Banned internationally since 2004

PCBs (polychlorinated biphenyls) were once widely used as a cooling fluids and insulators in transformers and electric motors, but were banned by many industrialized countries 30 years ago because of their harmful effects on humans and animals. More recently, the global production of PCBs has been banned as of May 2004 by the Stockholm Convention on Persistent Organic Pollutants, an environmental treaty designed to eliminate or restrict the production and use of persistent organic pollutants, including PCBs.

Polar bears are particularly at risk from these persistent pollutants because the chemicals are fat-soluble and increase in concentration the higher you go in the food chain. That's a double problem for polar bears, because they are at the very top of the food chain, and their preferred foods, like seals, tend to be very rich in fat.

Fertility problems and more

In humans, PCBs are considered a neurotoxin and an endocrine disrupter, and exposure to high levels of the substances has been linked to low birth weights, delayed developmental milestones, and lower IQs in comparison with unexposed children. Overall, a number of studies have found that exposure to persistent pollutants such as PCBs during critical developmental periods is associated with a range of negative health effects in wildlife, experimental animals and humans.

In polar bears, "PCBs affect the bears' thyroid hormones, and in the worst case can reduce the animals' ability to survive in the tough Arctic environment," Bytingsvik adds. "There can be negative effects on the bears' ability to grow and thrive. The contaminants can also affect the ability of the animals to learn and may reduce their fertility."

From mother to cub

Polar bear milk is high in fat, which also unfortunately makes it perfect for transmitting PCBs from mothers to their cubs. Bytingsvik also looked at levels of OH-PCBs, which are toxic substances created by the body when PCBs are metabolized. While OH-PCBs are still harmful, they are more likely to bind to proteins rather than dissolve in fat, which means that they are more likely to be transferred by umbilical cord blood than by milk. Another source of exposure is the cubs own metabolic conversion of PCBs into OH-PCBs.

In her study, Bytingsvik was able to look at polar bear blood samples from mothers and cubs that were collected in 1997 and 1998 (which she considered as 1998 for statistical purposes) and 2008. All told, she had samples from 26 mother bears and 38 cubs from the different time periods.

The bears were all sampled in the Norwegian island archipelago of Svalbard, roughly 800 km south of the North Pole. Overall, Bytingsvik found that the levels of OH-PCBs in polar bear mothers dropped by 65 per cent over the 10-year span, while the levels of PCBs dropped by 55 per cent. In cubs, the levels of OH-PCBs dropped by 50 per cent, while levels of PCBs dropped by 59 per cent over the same period. Although the bears were not sampled in exactly the same location in 2008 as in 1998 (which might itself affect PCB levels), Bytingsvik believes that the findings mainly reflect changes in exposure levels over time.

Predicting the future?

While these figures are encouraging, Bytingsvik notes that the overall levels of OH-PCBs and PCBs in the cubs are still too high. As a comparison, the 2008 concentrations of OH-PCB in cubs was roughly 90-170 times higher than levels that are known to affect thyroid hormones in human babies.

"Polar bear cubs can be much more susceptible to the effects of these kinds of environmental contaminants than adults because they are in a vulnerable phase of growth and development," she says.

Bytingsvik's research is part of a larger international project to assess the condition of polar bears in the Arctic called Bear Health. The Norwegian leader of the project, Bjrn Munro Jenssen, is Bytingsvik's supervisor. He says her findings are definitely good news.

"PCBs are considered to be among the worst environment contaminants, so it's good to see that the levels have gone down," he said. "At the same time, we can't forget that animals in the Arctic are exposed to a number of other environmental pollutants that are carried northward on the wind or by ocean currents. On top of that, there's climate change. This creates big challenges for many species."

###



[ Back to EurekAlert! ] [ | E-mail | Share Share ]

?


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.


PCBs levels down in Norwegian polar bears [ Back to EurekAlert! ] Public release date: 29-Mar-2012
[ | E-mail | Share Share ]

Contact: Bjrn Munro Jenssen
bjorn.munro.jenssen@bio.ntnu.no
479-189-7120
Norwegian University of Science and Technology

Study examined blood level changes in PCBs over a decade

It's never been easy to be a polar bear. They may have to go months without eating. Their preferred food, seal, requires enormous luck and patience to catch. Add to that the melting of Arctic sea ice due to climate change, and the poisoning of the Arctic by toxic chemicals, and it's easy to see why polar bears worldwide are in trouble.

Among all the bad news, however, comes one possible bright spot. In a study of PCBs in polar bear cubs in Svalbard, researchers from the Norwegian University of Science and Technology (NTNU) have found that blood levels of PCBs and related contaminants in polar bear cubs appear to have dropped by as much as 59 per cent between 1998 and 2008. At the same time, levels of these contaminants in their mothers were as much as 55 per cent lower over the same period.

"The levels of PCB compounds in blood samples from females are on the decline," says Jenny Bytingsvik, a biologist at NTNU who is completing her doctoral dissertation on the findings. "For newborn, vulnerable cubs, this is a very positive trend. Reduced levels of PCBs in the mother bears' blood mean that there is also less contamination in their milk. Even though the PCB levels we found are still too high, this shows that international agreements to ban PCBs have had an effect."

Banned internationally since 2004

PCBs (polychlorinated biphenyls) were once widely used as a cooling fluids and insulators in transformers and electric motors, but were banned by many industrialized countries 30 years ago because of their harmful effects on humans and animals. More recently, the global production of PCBs has been banned as of May 2004 by the Stockholm Convention on Persistent Organic Pollutants, an environmental treaty designed to eliminate or restrict the production and use of persistent organic pollutants, including PCBs.

Polar bears are particularly at risk from these persistent pollutants because the chemicals are fat-soluble and increase in concentration the higher you go in the food chain. That's a double problem for polar bears, because they are at the very top of the food chain, and their preferred foods, like seals, tend to be very rich in fat.

Fertility problems and more

In humans, PCBs are considered a neurotoxin and an endocrine disrupter, and exposure to high levels of the substances has been linked to low birth weights, delayed developmental milestones, and lower IQs in comparison with unexposed children. Overall, a number of studies have found that exposure to persistent pollutants such as PCBs during critical developmental periods is associated with a range of negative health effects in wildlife, experimental animals and humans.

In polar bears, "PCBs affect the bears' thyroid hormones, and in the worst case can reduce the animals' ability to survive in the tough Arctic environment," Bytingsvik adds. "There can be negative effects on the bears' ability to grow and thrive. The contaminants can also affect the ability of the animals to learn and may reduce their fertility."

From mother to cub

Polar bear milk is high in fat, which also unfortunately makes it perfect for transmitting PCBs from mothers to their cubs. Bytingsvik also looked at levels of OH-PCBs, which are toxic substances created by the body when PCBs are metabolized. While OH-PCBs are still harmful, they are more likely to bind to proteins rather than dissolve in fat, which means that they are more likely to be transferred by umbilical cord blood than by milk. Another source of exposure is the cubs own metabolic conversion of PCBs into OH-PCBs.

In her study, Bytingsvik was able to look at polar bear blood samples from mothers and cubs that were collected in 1997 and 1998 (which she considered as 1998 for statistical purposes) and 2008. All told, she had samples from 26 mother bears and 38 cubs from the different time periods.

The bears were all sampled in the Norwegian island archipelago of Svalbard, roughly 800 km south of the North Pole. Overall, Bytingsvik found that the levels of OH-PCBs in polar bear mothers dropped by 65 per cent over the 10-year span, while the levels of PCBs dropped by 55 per cent. In cubs, the levels of OH-PCBs dropped by 50 per cent, while levels of PCBs dropped by 59 per cent over the same period. Although the bears were not sampled in exactly the same location in 2008 as in 1998 (which might itself affect PCB levels), Bytingsvik believes that the findings mainly reflect changes in exposure levels over time.

Predicting the future?

While these figures are encouraging, Bytingsvik notes that the overall levels of OH-PCBs and PCBs in the cubs are still too high. As a comparison, the 2008 concentrations of OH-PCB in cubs was roughly 90-170 times higher than levels that are known to affect thyroid hormones in human babies.

"Polar bear cubs can be much more susceptible to the effects of these kinds of environmental contaminants than adults because they are in a vulnerable phase of growth and development," she says.

Bytingsvik's research is part of a larger international project to assess the condition of polar bears in the Arctic called Bear Health. The Norwegian leader of the project, Bjrn Munro Jenssen, is Bytingsvik's supervisor. He says her findings are definitely good news.

"PCBs are considered to be among the worst environment contaminants, so it's good to see that the levels have gone down," he said. "At the same time, we can't forget that animals in the Arctic are exposed to a number of other environmental pollutants that are carried northward on the wind or by ocean currents. On top of that, there's climate change. This creates big challenges for many species."

###



[ Back to EurekAlert! ] [ | E-mail | Share Share ]

?


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/2012-03/nuos-pld032912.php

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Positioning for the Coming Real Estate Boom ? Realtor.ca Review ...

A number of real estate marketing service companies are preparing for the return of the real estate market. And let?s face it, if they begin preparation now, they will be well positioned to take the market when it returns. ?Zillow, Realestatewebmasters, and Market Leader are 3 companies to look at as the battle of this market shapes up. ?And there are many smaller hosting and marketing companies looking to carve out a niche.

Real Estate Services is one market sector worth a look if you?re an investor looking for the next breakout opportunity.?There are millions of real estate agents in North America, Caribbean, and the UK and their sector is very competitive, yet most agents don?t have the skill or time to do marketing well. Those agents/brokers do their online marketing well stand to dominate their local markets.

3 high profile companies stand out as the lead horses in the race to dominate the real estate marketing service category. ?This category is about helping real estate companies gain visibility online, manage contacts, optimize email and ad campaigns, create leads, and build client loyalty. ?Given that all agents are turning to the web to generate sales leads, those companies that can provide these services are going to be highly valuated in the years ahead.

Zillow, Real Estate Webmasters, and Market Leader are the 3 top contenders to take the realtor service industry. ?Zillow had its high profile IPO launch last year and is now valuated at a billion dollars. ?It shows how a good idea (groupon, linkedin) can take off these days and make investors incredibly rich. Real estate webmasters is another successful company that might make such a move soon too. Market Leader?? recently purchased realestate.com and is purported to now be worth $84 Million. ?One interview with the company?s exec stated the company is losing money yet is still worth 100 to 200 million potentially. Realestate.com is a great property however they?ll need more to compete at the top level.

Zillow, (partnered with Yahoo), recently bought Diverse solutions (powerful idx solutions) to bolster its ability to create leads. The IPO will give Zillow the funds it needs to be a real estate marketing leader. First to market really, since not many companies have established themselves as a leader in real estate marketing services. Most are positioned as real estate agent web hosting companies. The market is fragmented due to the fact that mls associations are themselves fragmented. Zillow, and Yahoo?s Trulia are after the national market in the US, and they?re offering real estate agent advertising services.

Realestatewebmasters is perhaps the largest real estate web hosting company providing a complete content and client contact management system. Each customer is responsible for their own content development and marketing. Realestatewebmasters has some great website solutions (some customers might pay up to $30k setting up their custom site in the first year) however, because it is a system, it presents some limitations for lead conversion (standard programming). Realestatewebmasters doesn?t have agreements with all mls associations across North America.

What Zillow, Market Leader ?, Trulia, Realtor.ca, Realtor.com and other big players in this sector don?t offer to agents, is strategic, original content and dedicated marketing services. Their customers are basically provided with a generic hosting and visibility service. Agents are so desperate for leads however, that they are signing up. An advanced type of service that helps individual agents with content development services and top level SEO and Social Media strategies, will be more attractive. If an agent doesn?t get the leads and sales they need, they are quick to move onto another hosting provider. There?s lots of churn in the real estate hosting business.

Given that the large services can?t deliver the dedicated service and original content targeted for local city markets, there is a niche that can be exploited by dedicated content developers. ?Right now, IDX solutions are all the rage, but with the changes in Google?s search engine algorithm, new, original, engaging and sales converting content will be what everyone is after. The big companies won?t be creating that strategic content for agents.

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Source: http://leadsandsales.wordpress.com/2012/03/29/positioning-for-the-coming-real-estate-boom/

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Model Lauren Scruggs Lands Reported 7-Figure Settlement

You can't put on a price on losing a hand and an eye, but model Lauren Scruggs has some financial peace of mind after the horrific accident with an airplane propeller that nearly killed her last December.

Source: http://www.ivillage.com/model-lauren-scruggs-reaches-reported-7-figure-settlement-plane-s-insurer/1-a-439623?dst=iv%3AiVillage%3Amodel-lauren-scruggs-reaches-reported-7-figure-settlement-plane-s-insurer-439623

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Campus Connection ? Blog Archive ? UW-L's Outdoor Connection ...

Students kayak together during last year?s Perrot State Park Paddling Day Trip.

Students kayak together during last year?s Perrot State Park Paddling Day Trip.

By UW-L student Megan Kelbel

Hike in Hixon Forest, paddle the Goose Island Canoe Trail, or plan a camping trip with friends. The La Crosse area provides numerous opportunities to enjoy spring outdoors, and UW-L?s Outdoor Connection helps students and community members alike through offering rental services and recreational programs.

Outdoor Connection provides a wide variety of rentals, including inline skates, canoes, kayaks, mountain bikes, cruiser bikes and backpacks. The rental service also provides supplies for camping, such as tents, sleeping bags, headlamps and stoves. Rental equipment changes with the seasons, helping students and members of the community enjoy the La Crosse area all year long.

The recreational opportunities near UW-L are plentiful. Assistant Director of Recreational Sports Nathan Barnhart explains, ?La Crosse is one big recreation area. You can hike, bike, paddle, backpack and explore a cave all within an hour of La Crosse.?

Those interested in canoeing or kayaking can paddle along the Goose Island Canoe Trail, the La Crosse River Trail, the Perrot Park Canoe Trail and the Root River Water Trail, as well as several other rivers in the area. Those who prefer to hike or bike can choose between Hixon Forest, Experimental Forest, Perrot State Park and the Kickapoo Valley Reserve near Viroqua. Outdoor Connection provides a large map that highlights these areas, and the office has copies of site-specific maps available as well.

Outdoor Connection uses these recreational areas for their programs. Upcoming programs include a cycling trip and a canoeing trip, both in April. For more information on Outdoor Connection rentals and programs, visit http://www.uwlax.edu/recsports/ or stop in at the office in the Recreational Eagle Center.

Outdoor Connection hours:
10 a.m.-6 p.m. Monday-Friday
10 a.m.-4 p.m. Saturday
Noon-4 p.m. Sunday

Source: http://news.uwlax.edu/uw-ls-outdoor-connection-offers-spring-rentals/

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George Zimmerman's dad says Travyon told his son, 'You're gonna die now'

MSNBC's Lawrence O'Donnell shows newly tape of what Zimmerman's father says his son told him about the final moments before George Zimmerman killed him. Benjamin Crump, the head attorney for Trayvon Martin's family, and Natalie Jackson, co-counsel for the Martin family, share their reaction on The Last Word.

By msnbc.com staff

On FOX Orlando Wednesday evening, Robert Zimmerman, the father of the man who fatally shot 17-year-old Trayvon Martin, said his son was the victim. He said that Martin told George Zimmerman, "You're gonna die now, or you're gonna die tonight."

?George was going to the store, and he saw someone in his community that he did not recognize as living there,? Robert Zimmerman, a retired judge, said. ??Because there had been a lot of break-ins in the area, he thought that was suspicious that someone would not be walking on the street or the sidewalk, but they'd be walking right behind the townhomes.?

Robert Zimmerman said that his son, George Zimmerman, 28, then called a non-emergency number to report this stranger. He lost sight of the teen as he looked for an address to report to police, Robert Zimmerman told the FOX affiliate.


?It?s my understanding that at that point Trayvon Martin walked up to him, asked him, ?Do you have a ? beep ? problem?? George said ?No, I don?t have a problem?.?

The elder Zimmerman said that as his son started to reach for his cell phone, Martin, 17, punched him in the nose, knocking the larger man to the pavement. ?

?Trayvon Martin got on top of him and just started beating him, in the face, in his nose, hitting his head on the concrete,? Robert Zimmerman said.

That?s when Martin spotted George Zimmerman?s gun, Robert Zimmerman said.

?Trayvon Martin said something to the effect of, ?You're gonna die now,? or ?You're gonna die tonight,? something to that effect.?

When the interviewer asked about Martin?s girlfriend, who said that he told her that he was being followed, Robert Zimmerman said he didn?t believe her.

He replied: ?I don't believe she was on the phone with him, and I find it very strange with the publicity involved with this that all of the sudden, after three weeks, someone would remember that they were on the phone. I believe the FBI and others investigating this will find that that did not happen.?

Trayvon Martin was shot in the middle of a residential neighborhood, and more witnesses are coming forward to describe what they saw. A 13-year-old who saw the shooting described seeing a man screaming on the ground before the gun went off. Cheryl Brown, the mother of the eyewitness, and attorney Alisia Adamson join Politics Nation.

The family of a 13-year-old witness told Al Sharpton Thursday morning a different perspective. Although he did not witness the shooting, he heard it and said that he heard crying and that when the gun went off, the whining ceased.

Zimmerman, a self-declared neighborhood watch volunteer, fatally shot Martin on Feb. 26 in what he called an act of self-defense. Within weeks, the story started drawing nationwide attention and Sanford, Fla. Police were accused of bungling the investigation for not arresting Zimmerman. ?

Zimmerman, meantime, is in hiding. His father told FOX Orlando that he is not doing well.

Source: http://usnews.msnbc.msn.com/_news/2012/03/29/10912176-george-zimmermans-dad-says-travyon-told-his-son-youre-gonna-die-now

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