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Wednesday, November 30, 2011

Consumption of grilled or baked fish at least once a week can preserve the brain structure of seniors and reduce the risk of developing Alzheimer’s disease by three to five times, according to the results of a recent US study.

The study, conducted by the University of Pittsburgh School of Medicine in Pennsylvania, asked 260 volunteers with an average age of 76, about the frequency of their fish consumption. Ten years later, brain scans were carried out on those being researched. Those who regularly ate fish were found to have better preservation of parts of the brain related to memory. An additional five years later, 31% of those who did not regularly consume fish contracted mild cognitive impairment or Alzheimer’s disease. Of those who ate fish at least once a week, between three and eight per cent contracted the aforementioned medical conditions.

According to The Daily Telegraph, consumption of grilled or baked fish increases the intake of Omega 3 fatty acids, providing a greater amount of blood flow to the brain; therefore prompting a reduction in inflammation and internal gathering of plaque encountered in the lead-up to Alzheimer’s disease. Fried fish does not reduce the risk of contracting Alzheimer’s disease due to the low amount of Omega 3 it contains.

Dr. Cyrus Raji, who took leadership of the study, called it “the first study to establish a direct relationship between fish consumption, brain structure and Alzheimer’s risk.” Raji concluded that “people who consumed baked or [grilled] fish at least one time per week had better preservation of grey matter volume on MRI in brain areas at risk for Alzheimer’s disease.”

The Alzheimer’s Society’s research manager, Dr. Anne Corbett, stated: “This moderately sized study adds weight to existing evidence suggesting that eating fish reduces your risk of developing cognitive decline.” However, she contested these findings, saying they “did not account for lifestyle factors such as other foods or exercise”, which may have affected the overall outcome. Dr. Corbett advised consumers to “eat a healthy diet including fruit and vegetables along with taking regular exercise and giving up smoking” to reduce the risk of contracting dementia.

Meanwhile, Alzheimer’s Research UK lead researcher, Dr. Simon Ridley, believed the study had not clarified “whether other underlying factors may have contributed to the lower risk in people who eat fish.” There is “a clear need for more conclusive research into the effects of dietary fish on our cognitive health,” according to Dr. Ridley.

The results of the study are to be presented today at the annual meeting of the Radiological Society of North America.

Sunday, January 10, 2010

Chinese officials have said that their country’s exports surged last December to edge out Germany as the world’s biggest exporter.

The official Xinhua news agency reported today that figures from the General Administration for Customs showed that exports jumped 17.7% in December from a year earlier. Over the whole of 2009 total Chinese exports reached US$1.2 trillion, above Germany’s forecast $1.17 trillion.

Huang Guohua, a statistics official with the customs administration, said the December exports rebound was an important turning point for China’s export sector. He commented that the jump was an indication that exporters have emerged from their downslide.

“We can say that China’s export enterprises have completely emerged from their all-time low in exports,” he said.

However, although China overtook Germany in exports, China’s total foreign trade — both exports and imports — fell 13.9% last year.

Wednesday, October 25, 2006

On November 1, 2006 the old five, ten, twenty and fifty cent coins will be illegal tender, but the Reserve Bank of New Zealand says there are still at least 100 million still to be returned.

According to the Reserve Bank, most of the old coins have been lost in drains or buried in rubbish. “We think there is still another 100 million sitting around in people’s homes,” Brian Lang, currency manger for the Reserve Bank, said.

Lang said: “So far, just over 280 million coins have been returned, but there are more out there. Since 1967 the Reserve Bank has issued more than a billion of the old ‘silver’ coins. So if you don’t want to be stuck with loads of old coin – there’s never been a better time to empty your coin jars, sweep the car glove box and rummage behind the couch cushions.”

The coins still awaiting to be handed in, by either spending them, taking them to a bank or donating them to charity, are estimated to be worth between NZ$5 million and $50 million.

“A last-minute burst of publicity may convince people to bring the coins in. It’s a bit of a hassle though. Human nature being what it is, people just don’t care,” Lang said.The Karori Wildlife Sanctuary located in Wellington say that they have collected over $9,000 in old coins. Sanctuary spokesman, Alan Dicks said: “The campaign was particularly fitting because the old coins depicted tuataras and kiwis, both of which can be found living at the sanctuary. The money will go towards supporting general ecological restoration of the sanctuary. We want to get over ten grand, but the more the better.”

Lang said: “Though the coins will no longer be legal tender, banks will continue to exchange them until at least the end of the year,” and the Reserve Bank will always exchange them. “We are still getting people coming in with two-dollar notes,” Lang added.

Tuesday, November 8, 2005

The Prime Minister of Australia, John Howard, was asked in parliament today about the contract to print the new industrial relations legislation booklets. Kelvin Thomson asked the question because the contract was awarded to Salmat Ltd., who has been said to have donated $120,000 to the Australian Liberal Party, of which the Mr Howard is a member. The contract was worth $800,000 AUD. It was revealed by Stephen Smith the week earlier that these booklets were “pulped” at a cost of $152,000 to the taxpayer.

The Prime Minster John Howard said that “the contract was awarded in the normal fashion”, and that he did not know if Salmat donated to any other parties, and said that he ask someone to “just do a little bit of research this afternoon” to get further information on the matter. After Question Time the Prime Minister confirmed that Salmat was selected through an open tender process, and expressed his belief that “expressions of political support should not disbar one from preferment on the merits.”

Monday, January 5, 2009

On Sunday afternoon, a Lafayette-based Petroleum Helicopters Inc. (PHI, Inc.) helicopter bound for the offshore oil fields crashed shortly after taking off from its Amelia base, into a marshy area near Bayou Penchant about 100 miles southwest of New Orleans. The helicopter had been carrying oilfield workers and 2 pilots. Eight people were killed and the Coast Guard helicopter rushed the lone survivor, a 28-year-old medevacted man, in critical condition, to Leonard J. Chabert Medical Center and then taken to Houma‘s Hebert Medical Center.

According to Pamela Norton, age 37, a Gretna woman, her ex-husband, Jorey A. Rivero Sr., age 35, of Westwego, was aboard the oil-services helicopter. “He got onto that chopper about noon Sunday,” she said. The largest helicopter company in the world, Petroleum Helicopters Inc. (PHI, Inc. – formerly Petroleum Helicopters International) has its home base in Lafayette Regional Airport. It provides helicopter services to oil and gas businesses and also flies medical helicopters. “Eight deceased passengers were recovered by the Terrebonne Parish Sheriff’s Department,” Coast Guard spokeswoman Jaclyn Young said. According to Richard Ravinelli, PHI Director of Human Resources, the victims’ names would not be released until all family members concerned are duly notified.

According to Barbara Bryant, her son who worked for three years on oil rigs, was one of the fatalities. “He just spent 3 months offshore, just because he wanted to save up enough money for a down payment on his own house, and he’s been living with me to save his money to do that. He didn’t make it,” she said.

The New Orleans Eighth Coast Guard District Command Center received a distress signal from the Langley, Va. Air Force Rescue Coordination Center (AFRCC), at 3:30 p.m. Helicopter owner PHI earlier called the Coast Guard, informing about a distress call from its helicopter. Upon AFRCC request, Coast Guard’s Air Station New Orleans’ HH-65C and crew were dispatched to the site of the crash.

Rescue workers at Bob’s Bayou Black Marina in Gibson, Louisiana, an unincorporated community in Terrebonne Parish, Louisiana, arrived at boat launch to coordinate recovery efforts for the bodies in the wilderness. The Terrebonne Sheriff’s Office Water Patrol and a Coast Guard helicopter also cooperated in search of bodies in waters near Bayou Penchant, a soupy, grassy area which is only accessible by airboat.

Federal investigators led by the National Transportation Safety Board are scheduled to arrive to the crash site Monday to probe the tragedy.

In June, another PHI Air medical helicopter also crashed in Texas. The Sam Houston National Forest accident killed the pilot, paramedic, nurse and a patient who was being transferred from Huntsville to Houston.

Thursday, June 23, 2011

NASA’s Cassini–Huygens spacecraft has discovered evidence for a large-scale saltwater reservoir beneath the icy crust of Saturn’s moon Enceladus. The data came from the spacecraft’s direct analysis of salt-rich ice grains close to the jets ejected from the moon. The study has been published in this week’s edition of the journal Nature.

Data from Cassini’s cosmic dust analyzer show the grains expelled from fissures, known as tiger stripes, are relatively small and usually low in salt far away from the moon. Closer to the moon’s surface, Cassini found that relatively large grains rich with sodium and potassium dominate the plumes. The salt-rich particles have an “ocean-like” composition and indicate that most, if not all, of the expelled ice and water vapor comes from the evaporation of liquid salt-water. When water freezes, the salt is squeezed out, leaving pure water ice behind.

Cassini’s ultraviolet imaging spectrograph also recently obtained complementary results that support the presence of a subsurface ocean. A team of Cassini researchers led by Candice Hansen of the Planetary Science Institute in Tucson, Arizona, measured gas shooting out of distinct jets originating in the moon’s south polar region at five to eight times the speed of sound, several times faster than previously measured. These observations of distinct jets, from a 2010 flyby, are consistent with results showing a difference in composition of ice grains close to the moon’s surface and those that made it out to the E ring, the outermost ring that gets its material primarily from Enceladean jets. If the plumes emanated from ice, they should have very little salt in them.

“There currently is no plausible way to produce a steady outflow of salt-rich grains from solid ice across all the tiger stripes other than salt water under Enceladus’s icy surface,” said Frank Postberg, a Cassini team scientist at the University of Heidelberg in Germany.

The data suggests a layer of water between the moon’s rocky core and its icy mantle, possibly as deep as about 50 miles (80 kilometers) beneath the surface. As this water washes against the rocks, it dissolves salt compounds and rises through fractures in the overlying ice to form reserves nearer the surface. If the outermost layer cracks open, the decrease in pressure from these reserves to space causes a plume to shoot out. Roughly 400 pounds (200 kilograms) of water vapor is lost every second in the plumes, with smaller amounts being lost as ice grains. The team calculates the water reserves must have large evaporating surfaces, or they would freeze easily and stop the plumes.

“We imagine that between the ice and the ice core there is an ocean of depth and this is somehow connected to the surface reservoir,” added Postberg.

The Cassini mission discovered Enceladus’ water-vapor and ice jets in 2005. In 2009, scientists working with the cosmic dust analyzer examined some sodium salts found in ice grains of Saturn’s E ring but the link to subsurface salt water was not definitive. The new paper analyzes three Enceladus flybys in 2008 and 2009 with the same instrument, focusing on the composition of freshly ejected plume grains. In 2008, Cassini discovered a high “density of volatile gases, water vapor, carbon dioxide and carbon monoxide, as well as organic materials, some 20 times denser than expected” in geysers erupting from the moon. The icy particles hit the detector target at speeds between 15,000 and 39,000 MPH (23,000 and 63,000 KPH), vaporizing instantly. Electrical fields inside the cosmic dust analyzer separated the various constituents of the impact cloud.

“Enceladus has got warmth, water and organic chemicals, some of the essential building blocks needed for life,” said Dennis Matson in 2008, Cassini project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California.

“This finding is a crucial new piece of evidence showing that environmental conditions favorable to the emergence of life can be sustained on icy bodies orbiting gas giant planets,” said Nicolas Altobelli, the European Space Agency’s project scientist for Cassini.

“If there is water in such an unexpected place, it leaves possibility for the rest of the universe,” said Postberg.