Friday, July 15, 2011

A tropical tree-dwelling lizard has succeeded in a problem-solving test by learning to associate the color of a cap with a food reward, contesting the stereotype that reptiles are extremely limited cognitively compared to birds and mammals. The cognitive abilities of reptiles have rarely been studied.

In a color discriminating task, the lizards learned to flip over the correctly colored cap to reveal a worm hidden underneath. The experiment was conducted at Duke University and the results, published in the Royal Society journal Biology Letters, suggest that the problem-solving abilities of reptiles may be greater than previously thought.

The Puerto Rican lizard, (an anole), used in the study, is a well-studied species, known to excel at foraging food by being acutely aware of movement. Several lizards of this species were collected from Puerto Rico for the experiment.

Researches first wanted to determine if the six lizards used in the study were able to figure out how to flip off the cap to obtain the food. The agile reptiles quickly learned to use one of two ways to move the cap: they closed their jaws on the edge of the cap and dragged it off the food, or ran into the cap with their heads, tipping it over and grabbing the food.

The lizards were then given a choice between two caps; one was blue and the other was yellow and blue; under only one was the food reward of a worm. They quickly learned to distinguish which cap had the reward.

“They learned to associate the color of the [cap] with a food reward,” said Manual Leal, the Duke University researcher who led the study. Their success on a test that is based on worms and usually used on birds was “completely unexpected,” he said.

The lizards solved the problem in fewer tries than birds needed to flip the correct cap and pass the test, Leal explained. Lizards get just one chance per day because they eat less, while birds usually get up to six chances a day. Thus a mistake by a lizard means it must remember until the next day how to correct the mistake, Leal said.

And when the color of the caps was switched, after a few mistakes two of the lizards were able to figure out the trick. “We named these two Plato and Socrates,” said Leal.

Jonathan Losos, a biologist at Harvard University not involved in the study, said Leal’s experiment demonstrates that when faced with a new situation, most of the lizards were able to solve the problem. They had the ability to figure out the trick and disregard their previous learning; a sign of a cognitively advanced animal that some mammalian species cannot easily do.

The results “should cause researchers to re-evaluate what they think they know about the evolution of animal cognition,” Losos said.

Saturday, October 20, 2007

Dell Inc. announced on Tuesday that it will partner up with the Microsoft-Nortel Innovative communications alliance (ICA) team to sell Unified Communications and VoIP products.

The announcement on Tuesday the 16th of October 2007 includes Dell selling VoIP, data and wireless networking products from Nortel and the Microsoft Office Communications Server 2007 and other unified communications products.

The partnership with both manufacturers should allow Dell to provide a pre-integrated solution.

In March 2007, competitors IBM and Cisco announced they would join in the competition for developing unified communications applications and the development of open technologies around the unified communications and collaboration (UC2) client platform an application programming interfaces (APIs) offered by IBM as a subset of Lotus Sametime.

“We want to make it simple for our customers to deploy unified communications so their end users can get access to all their messages in one place – whether its e-mail, phone or mobile device. This will pave the way for more business-ready productivity tools,” said vice president of solutions, Dell Product Group, Rick Becker.

• Customers have four options:
  • Core Office Communication Server 2007 – provides instant messaging and on-premise Microsoft Live Meeting.
  • Office Communication Server: Telephony – enables call routing tracking and management, VoIP gateway and public branch exchange (PBX) integration.
  • Audio and Video Conferencing – allows point-to-point conference, video conference and VoIP audio conference.
  • Exchange Unified Messaging – provides voicemail, e-mail and fax in Microsoft Outlook, and anywhere access of Microsoft Outlook Inbox and Calendar.

Friday, February 21, 2014

Monday, June 7, 2010

A suspect in a hit-and-run located in San Francisco, California, was arrested after hitting four cyclists and, two days later, lying to the police. Over the course of six minutes, the 39-year-old man hit four people with his car and then ran off when his car crashed into another vehicle and hit a pole. The investigators tracked down the man’s address with the evidence found in the car; however, as he had moved, they were unable to find him.

The suspect later told the police at Albany Police Station that his car was stolen, and after the police identified that as a lie, he was arrested. The police believes that the victims were deliberately targeted, although the motive remains a mystery. The suspect is currently in hospital for medical and psychological testing.

“I was only a block from my house and I saw something coming at me, from the corner of my eye. I managed to swing out of the way and avoid the full brunt of an impact,” said one of the victims, Rory Madden. “It doesn’t make any sense that anybody would do that, so whatever he has to say is not going to make sense.” The other three men were hospitalized, two in serious condition and one in fair condition.

The attack left bicycles crumpled and some cars damaged, one severely, according to San Francisco police spokeswoman, Lyn Tomkioka. “We’re just really glad that he’s been arrested,” she said. Mayor Gavin Newsom and the San Francisco Bicycle Coalition condemned the attack, stating that there are currently efforts to make San Francisco “one of the most bike-friendly cities in the country”.

Friday, May 26, 2006

Brampton, ON — On Wednesday, May 31 at 6:30 p.m., sculptor Alvaro Cervantes will host a meet and greet at the Visual Arts Brampton Creative Studio. Cervantes will be showing his precise sculptures to guests, and promoting his upcoming multi-week workshop at the studio. The course is open to students who love cartoon, no matter their skill levels or experience sculpting.

“We’re extremely pleased to present such a unique course at VAB,” group president Keith Moreau commented. “Alvaro is a master of his craft, and students are sure to benefit immensely from the experience.”

Alvaro has specialized in maquettes for 16 years, creating sculptures used by companies including Disney, Pixar, and Marvel Comics. His works have served as reference for animators, and as prototypes for toys. Some of his most recent work is for the Disney-Pixar film Cars, which will was released today in theatres. Cervantes has taught the workshop at Oakville’s Sheridan College, home of a respected Animation BA program.

The meet-and-greet is free for everyone. The timing and price of the course will be established by Wednesday.

The Visual Arts Brampton Creative Studio is located in the Bartley’s Square Mall, at the corner of Hurontario and Steeles Avenue. The studio is the only suite in the lower level, and is accessible through a glassed in lobby.

For more information on the meet-and-greet or the course, contact visualartsbrampton@gmail.com, or phone 905-453-9142.

Monday, November 21, 2005

Possible under reporting of bird flu infections in China and other Southeast Asian countries may be promoting an illusory sense that human infections are very limited. Common press reports only describe fewer than 130 people as infected with H5N1 avian flu and that fewer than 70 have died worldwide. Yet, there are enormous problems getting accurate data, especially in a country like China with a population of more than a billion.

“Reporting a suspected bird flu infection in bird or humans is a very unlikely event,” said Dr. Shoshana Zimmerman of the eHealth Institute. She is also a founder of www.birdflubeacon.com, a site dedicated to bird flu issues. “There are very few incentives to report, and lots of reasons to refrain from reporting. From the viewpoint of local rural small farmers, there is little to be gained and much to be lost by reporting an infection. The worse threat is that their flocks could be killed, leaving them destitute.”

There are many factors which mitigate against reporting bird or human infections of bird flu.

• The deaths of chickens, ducks, and birds are common events for farmer. Even when a large number die at one time they may see no purpose in reporting the deaths.

• When a human dies in locations with little or no medical services, the rural farmer’s priority for discerning the cause of death may be low.

• In rural areas most people are not taken to hospitals when they are sick.

• Bird flu symptoms are not widely known. If the symptoms are not known, they will not be recognized and reports of possible bird or human infections can not be made.

• The expenses required for detection are those of proper collection and shipment of samples to one of approximately 200 laboratories worldwide, as well as the testing procedure that requires a two week period of waiting before results are obtained.

• The lack of incentive for countries to report large scale outbreaks as it may lead to widespread panic and economic loss, as occurred with SARS. These factors can be seen at work in the way that the first bird flu death was reported in China,” Dr. Zimmerman stated.

A young woman, Zhou Maoya, died after returning home to the village of Yantan in Annui province to prepare for her wedding. Her family has stated that they did not take her to the hospital because they thought it would not do any good. Officials also note rural Chinese also often cite relatively expensive medical costs as a reason for not seeking treatment when sick.

Although initially authorities attributed her death to pneumonia the resulting political pressure prompted China to invite the World Health Organization to send experts to investigate. The authorities then rescinded the previous position and attributed her death to bird flu based on the similarity of the symptoms that she was reported to exhibit with those of bird flu. The village was quarantined and journalists were denied access. It is not known how many others might be infected in the village. Official announcements were made of plans to vaccinate and cull birds.

A local government official, Fan Qian, told AFP that it was believed Zhou was infected while she was outside of the province.

Fan Tan, a local official, told AFP news that 1,000 birds in Yantan had been culled (killed). Plans were announced to vaccinate 2 million poultry in the area, a huge and difficult task.

Zhang, another official, said authorities had met with all villagers to give them flu vaccinations and to tell them how to protect themselves against the bird flu virus, including not consuming poultry products. It is known that flu vaccinations do not protect against bird flu.

Villagers and local officials minimized the threat. In outlying areas of Yantan, residents said that they did not know of any new outbreaks. Other possible infections have been attributed to similar common causes but there have not been any tests performed validating those attributions.

Fan Litan, a peasant woman from Fantu village, about 2 miles from Yantan, lost many of her ducks, and chickens and also a dog; she has attributed these deaths to the acts of hooligans. She said her family had been extremely frightened when her animals suddenly died. “We were scared to death,” said Fan, standing next to a red sign posted on the outside wall of her home that said: “Prevention and control by the masses is basic for people.” Fan said ducks and chickens are all healthy but she admitted that she had stopped eating poultry. No testing of these birds has been reported yet.

According to a recent AFP report from Liuchang, 59 miles south of Yantan, the obstacles to identifying infections are enormous.

Like many, one Liuchang villager named Wang Hemin said he was concerned and would keep a closer eye on his ducks and chickens, but felt no immediacy since the infection was not in his province. He learned about bird flu on TV, and is aware that officials have come to his village of 2,700 people to warn residents about the virus. They offered guidelines: they told people that poultry which die suddenly could have contracted bird flu and should not be eaten or sold and that such an incident should also immediately be reported. However, the symptoms of H5N1 bird flu were not directly described.

Residents have not yet been fully informed of what symptoms to look for in ill poultry–they are fever, diarrhea, teary eyes and swelling in the legs of the birds. Though a pledge was made earlier in the week to vaccinate 2 million birds immediately, no bird vaccinations in this area have been reported yet.

In another nearby village, Nazahuang, chickens scuttle in and out of houses. One resident, Fan Jiexu, 73, said no officials had yet warned her village to take precautions. Throughout rural areas, it is customary for chickens to scuttle in and out of homes. Ducks and bird often die and are eaten by villagers when it is believed safe to do so.

China has reported 17 avian flu outbreaks as of this week. Despite the Chinese government issued high alerts, critical information is not being adequately communicated to some rural villages. The size of the poultry population, the common and normal occurrence of poultry death on farms, and status of roughly 70% of the poultry population as being kept in backyards are factors complicating infection control.

The head of World Health Organization’s China office, Henk Bekedam, is aware that slow reaction to bird flu threats and difficulty monitoring poultry in the world’s most populous country makes control of its spread challenging.

Testing is required to confirm H5N1 virus, and positive test results lead to the killing of nearby flocks. The incentive for many villagers, officials, and governments to minimize reports of H5N1 virus infections and severe medical and economic complications for making confirmations of infection are obstacles opposing complete and full reporting of the spread and infection rates of the virus.

Thursday, November 8, 2007

What you are about to read is an American life as lived by renowned author Edmund White. His life has been a crossroads, the fulcrum of high-brow Classicism and low-brow Brett Easton Ellisism. It is not for the faint. He has been the toast of the literary elite in New York, London and Paris, befriending artistic luminaries such as Salman Rushdie and Sir Ian McKellen while writing about a family where he was jealous his sister was having sex with his father as he fought off his mother’s amorous pursuit.

The fact is, Edmund White exists. His life exists. To the casual reader, they may find it disquieting that someone like his father existed in 1950’s America and that White’s work is the progeny of his intimate effort to understand his own experience.

Wikinews reporter David Shankbone understood that an interview with Edmund White, who is professor of creative writing at Princeton University, who wrote the seminal biography of Jean Genet, and who no longer can keep track of how many sex partners he has encountered, meant nothing would be off limits. Nothing was. Late in the interview they were joined by his partner Michael Caroll, who discussed White’s enduring feud with influential writer and activist Larry Kramer.