Friday, September 15, 2006

Jesse Sullivan has two cybernetic arms, after electrical burns suffered while working as an electrical utility lineman resulted in amputation of both his arms at the shoulder. Claudia Mitchell has a similar cybernetic left arm, after a motorcycle accident resulted in amputation. Sullivan and Mitchell shook hands with these thought-controlled prosthetic arms at an event staged Thursday in Washington, D.C. by the Defense Advanced Research Projects Agency (DARPA) and Center for Artificial Limbs at the Rehabilitation Institute of Chicago.

Unlike traditional prosthetic limbs, these are actuated through muscle reinnervation; nerves are grafted onto specific muscles, controlling their contraction, which are then detected by electrode sensors and control the prosthetic limb. “Basically it is connecting the dots. Finding the nerves. We have to free the nerves and see how far they reach,” says Dr. Todd Kuiken, developer of the prostheses and director of neuroengineering at the Rehabilitation Institute. By this chain of communication the prostheses utilize thought-controlled biomechanics. According to Sullivan, “When I use the new prosthesis I just do things. I don’t have to think about it … I do all the yard work. I take out the garbage.”

DARPA, as an agency of the United States Department of Defense, seeks to eventually provide such prostheses for soldiers losing their organic limbs in combat. “We’re excited about collaborating with the military,” said Kuiken. 411 U.S. troops in Iraq and 37 in Afghanistan have had wounds that cost them at least one limb according to the Army Medical Command.

Tuesday, April 27, 2010

Dale Ogden, a 2010 California gubernatorial candidate, talks with Wikinews reporter Mike Morales about his platform.

Ogden is a member of the United States’ Libertarian Party.

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.

Tuesday, June 12, 2007

North America’s largest outdoor dog festival came back to Toronto last weekend for its fifth year. It ran from the 9th of June to the 10th of June at Toronto’s historical St. Lawrence Market. A Wikinews reporter was there on Sunday to report on some of the events that happened on the last day.

The “Woofstock” dog festival attracted as many as 140,000 people with their dogs. The festival had tons of accessories, sold under tents, to buy for dogs; food, toys, designer clothes, and more. About 400 vendors and exhibitors were there to promote their products, which also gave private dog companies or groups a chance to show their new products. The local SPCA and some animal rescues were under tents answering questions from visitors. While walking, all visitors could see the CN Tower and other very tall buildings.

One of the local TV stations, Citytv, was there. They hosted a live event at the show which was broadcast on TV. People came up on the stage and asked questions regarding their dogs and the host and co-host answered them.

A man, who called himself the “Chalk Master”, drew two pictures on pavement with chalk. He did it for free but donations were welcome. One was a picture of a girl’s head beside a dog’s head, and another with a wolf.

“Hello Humans. I’ve been invited here to provide your eyeball(s), with some pretty colours. I don’t get paid as I work this weekend strictly for tips… so, if you like what you see please make a DONATION. If you don’t like it simply reach into the pocket of the person next to you and give me their money. CHALK MASTER.”

A contest called “Canada’s top dog” had its own tent with a professional photographer taking pictures of dogs behind a white screen; the winning photo is to be published on the cover of “Puppy and dog basics” magazine.

Large “Gourmet” dog bones were also served from a cart and table.

Next year’s festival is expected to be bigger and better with even more attractions.

Sunday, January 30, 2005Ex-British Culture Minister [Chris Smith has lived with the HIV virus for 17 years, he has revealed to the Sunday Times.

The former cabinet minister decided to go public after the former South African President Nelson Mandela announced his son Makgatho Mandela, had died of AIDS.

‘When I first heard about it, I was really worried because there was hardly any treatment,’ he told the newspaper.

Mr Smith was quickly put on a course of anti-retrovirals after he was diagnosed. He said that he had “been with the National Health Service all the time”.

Chris Smith revealed he was gay in 1984. He was sacked from his post (which he held since 1997) in 2001, after controversies over the National Lottery and the construction of the new Wembley Stadium.

He is due to stand down at the next General Election.

Saturday, March 5, 2005Simply massaging low birth weight babies with sunflower seed oil can protect them from potentially fatal infections.

Infections and complications from preterm birth cause more than half of all neonatal deaths, and very low birth weight babies are particularly vulnerable.

Preterm babies have immature skin that lacks a protective film called vernix that has antimicrobial properties.

In some countries, such as India, newborns are routinely massaged with mustard oil.

But mustard oil, says Gary Darmstadt of John Hopkins University in Baltimore, Maryland, can delay recovery of the skin barrier and have a toxic effect on skin.

Seeking an alternative low-cost product, Darmstadt and colleagues experimented with sunflower oil and an ointment called Aquaphor that comprises petrolatum, mineral oil, mineral wax and lanolin.

The researchers tested the treatments on 497 newborns (72 hours old or less) and preterm babies (less than 33 weeks gestation) between 1998 and 2003 in Bangladesh.

They applied the treatments to the entire body besides the scalp and face three times daily for the first 14 days and then twice daily until discharge.

Babies treated with sunflower oil were found 41% less likely to develop infections than controls.

“Evidence is emerging that the skin is much more important as a barrier to infection than previously recognized, particularly in preterm infants whose skin is underdeveloped,” says Darmstadt. “The good news is that treatment is available to strengthen the function of the skin as a barrier in these vulnerable newborns.”

Saturday, October 23, 2021

China property giant Evergrande Group wired USD83.5 million in interest owed in an offshore bond from September 23 on Thursday, temporarily averting default, according to a Reuters source and Chinese newspaper Securities Times.

The wire to a Citibank fiduciary account following a 30-day grace period came after assurances by various members of the Chinese government, Reuters reported. At a Beijing forum Wednesday, Chinese Vice Premier Liu He described the risks as controllable, and chairman of the China Securities Regulatory Commission Yi Huiman said that while authorities needed to curb excessive debt more broadly by “improv[ing] the effectiveness of the constraint mechanism on debt financing”, the matter would be dealt with properly.

Once China’s top real estate developer, Evergrande had accumulated approximately USD305 billion in liabilities, two per cent of the Chinese gross national product, after “dwindling resources” cut its value by 80%, according to Reuters. September data revealed Chinese home sales by value fell by nearly 17% year-on-year, according to The Guardian, and fears over its default led to a slowdown in China’s third quarter GDP growth to a year low of 4.9%. Two sale negotiations with rival developers Hopson Development and Yuexiu, valued at USD2.6 billion and USD1.7 billion, respectively, were suspended, reportedly due to a lack of consent by the government of Guangdong province currently overseeing Evergrande’s restructuring.

News of Evergrande’s remittance caused its shares to rise by as much as 7.8% this morning after a two-week pause in trading for the anticipated sale of 50.1% in Evergrande Property Services Group, and offering some reprieve for bondholders, according to Reuters. Portfolio manager at GaoTeng Global Asset Management James Wong, interviewed by The Guardian, called the news “a positive surprise”, adding “[i]f Evergrande pays this time, I don’t see why it won’t pay the next time.” Jun Rong Yeap for IG Asia pte., interviewed by Bloomberg, said the report “overturned” the narrative “that Evergrande will face difficulty in securing cash ahead”.

Further missed payments are due October 29 and November 11 after similar 30-day grace periods; including yesterday’s USD83.5 million, nearly USD280 million is owed to bondholders.

Stocks have been down for many major Chinese developers: Reuters Wednesday reported year-to-date stock prices fell 87.8% for Sinic Holdings, currently in Fitch Ratings’ ‘restricted default’ after failing to make an October 18 bond payment valued, according to The Guardian, at USD246 million; 80.2% for Evergrande itself; 78.3% for E-House, 58.5% for Fantasia Holdings and 54.6% for Kaisa Group, which defaulted in 2015 and had bonds reach record lows.

Estimates of the Chinese real estate market’s size range from 16 to 25% of the Chinese gross domestic product, according to The Guardian. Chinese President Xi Jinping’s aim to transform the country’s economy from one of debt-fuelled “inflated” growth to one of improved “quality and returns” included imposing regulations on developers that limited their capacity to borrow. A Guardian comment piece from economist George Magnus published on October 15 made reference to China’s “ghost cities” and “rampant credit creation” that has given rise to high vacancy rates and the “financialisaton of housing”.