Sunday, August 21, 2005

A robotic system at Stanford Medical Center was used to perform a laparoscopic gastric bypass surgery successfully with a theoretically similar rate of complications to that seen in standard operations. However, as there were only 10 people in the experimental group (and another 10 in the control group), this is not a statistically significant sample.

If this surgical procedure is as successful in large-scale studies, it may lead the way for the use of robotic surgery in even more delicate procedures, such as heart surgery. Note that this is not a fully automated system, as a human doctor controls the operation via remote control. Laparoscopic gastric bypass surgery is a treatment for obesity.

There were concerns that doctors, in the future, might only be trained in the remote control procedure. Ronald G. Latimer, M.D., of Santa Barbara, CA, warned “The fact that surgeons may have to open the patient or might actually need to revert to standard laparoscopic techniques demands that this basic training be a requirement before a robot is purchased. Robots do malfunction, so a backup system is imperative. We should not be seduced to buy this instrument to train surgeons if they are not able to do the primary operations themselves.”

There are precedents for just such a problem occurring. A previous “new technology”, the electrocardiogram (ECG), has lead to a lack of basic education on the older technology, the stethoscope. As a result, many heart conditions now go undiagnosed, especially in children and others who rarely undergo an ECG procedure.

A compilation of brief news reports for Monday, May 7, 2007.

A 30 meter section of a gas pipeline in Luka (near Kiev) in Ukraine has been destroyed by an explosion. Although supplies to Europe via this pipeline have stopped, Ukrainian Energy Minister Georgi E. Boyko said that supplies to Europe would not be affected.

“There are no changes in volumes of gas being transported,” Yuri Korolchuk said. “Volumes due to pass through the damaged section are being redirected through the Soyuz pipeline.”

Normal flows are reported in the Czech Republic, Hungary, Poland and Romania.

Sources

• “Blast damages pipeline in Ukraine” — Russia Today, May 8, 2007
• Natalya Zinets, Reuters. “Blast hits Ukraine gas pipeline” — The Scotsman, May 7, 2007

Copper prices are rising. Between record copper imports from China, and a mining strike in Peru, the prices have climbed to over $8100 (United States dollars) a tonne, for a gain of $575 dollars over the last week. However the upward trend is not new, it has been climbing for quite some time. In April 2003, the price of copper was under $2000 a tonne.

The metal market has been tending up due to growth in the Chinese industrial production. This trickles down to the local level, where the buying price at scrap yards is ever climbing, making scrap metal collection a more profitable endeavour for individual people using pick up trucks or other such vehicles to collect and cash in the scrap metal at metal buying yards. It can be collected via agreements with businesses, from the garbage, or, sometimes, by theft.

Copper prices fell today on the NYMEX commodity exchange from US$3.7545 per pound to US$3.7125 based on the July futures contract.

Sources

• “Copper up but crude oil down” — Financial Express, May 6, 2007
• Millie Munshi. “Metals Bubble Poised to Burst on Increasing Supplies” — Bloomberg L.P., May 7, 2007
• “Commodity Futures” — Bloomberg L.P., accessed May 7, 2007

One man was killed and another injured by an exploding backpack in the parking lot of the Luxor Hotel in Las Vegas, Nevada. The explosion happened at 4 a.m. PDT when the victim tried to remove a the object left on top of his car.

Agents from the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) are on the scene. Aerial images did not show any apparent damage.

“We believe the victim was the intended target of this,” Bill Cassell said, spokesperson for the Las Vegas Metropolitan Police Department. “This is being treated as a homicide in which the weapon used to cause death is a non-traditional weapon.”

Both of the victims worked at the Luxor.

Sources

• Associated Press. “1 dead, 1 hurt in Las Vegas parking lot blast” — MSNBC, May 7, 2007
• “Explosion kills man in Vegas outside Luxor hotel” — Reuters, May 7, 2007

Friday, March 23, 2007

In a press release earlier today, New York State Agriculture Commissioner Patrick Hooker, along with Dean of Cornell University’s College of Veterinary Medicine Donald F. Smith, confirmed that scientists at the New York State Food Laboratory identified Aminopterin as a toxin present in cat food samples from Menu Foods.

Menu Foods is the manufacturer of several brands of cat and dog food subject to a March 16, 2007 recall.

Aminopterin is a drug used in chemotherapy for its immunosuppressive properties and, in some areas outside the US, as a rat poison. Earlier reports stated that wheat gluten was a factor being investigated, and officials now state that the toxin would have come from Chinese wheat used in the pet food, where it is used for pest control. Investigators will not say that this is the only contaminant found in the recalled food, but knowing the identity of the toxin should assist veterinarians treating affected animals.

The Food Laboratory tested samples of cat food received from a toxicologist at the New York State Animal Health Diagnostic Center at Cornell University. The samples were found to contain the rodenticide at levels of at least 40 parts per million.

Commissioner Hooker stated, “We are pleased that the expertise of our New York State Food Laboratory was able to contribute to identifying the agent that caused numerous illnesses and deaths in dogs and cats across the nation.”

The press release suggests Aminopterin, a derivative of folic acid, can cause cancer and birth defects in humans and can cause kidney damage in dogs and cats. Aminopterin is not permitted for use in the United States.

The New York State Food Laboratory is part of the Federal Food Emergency Response Network (FERN) and as such, is capable of running a number of unique poison/toxin tests on food, including the test that identified Aminopterin.

Sunday, December 30, 2007

It has been announced that Bilawal Bhutto Zardari, 19, the son of former Pakistani Prime Minister Benazir Bhutto will take her place as the head of the Pakistan People’s Party (PPP) and lead the party alongside his father Asif Ali Zardari. It is also announced and confirmed that the PPP along with the Nawaz Sharif’s Pakistan Muslim League-Nawaz (PML-N), will contest the upcoming elections for a new Prime Minister on January 8.

“I stand committed to the stability of the federation. The long and historic struggle for democracy will continue with renewed vigor. My mother always said democracy is the best revenge,” said Bhutto in a statement during a press conference today.

It is reported that Benazir wanted her son to take her place if anything happened to her, according to her will which was written just two days before she returned to Pakistan from exile in October.

It has also been announced that the PPP has voted in favor of a resolution that calls for an investigation into Benazir’s assassination which will be given to the United Nations. The resolution says that they would like the United Kingdom to help with the investigation, and that the PPP does not trust any investigations performed by the government of Pakistan.

Despite Bhutto being the new head of the PPP, Zardari says that Mukhdoom Amin Fahim, a loyal party member, will run in any elections for a new Pakistani Prime minister. But his bid for the seat may have to wait.

The current ruling party in Pakistan the PML-Q party states that because of continuing violence and riots in Pakistan that were set off by Benazir’s assassination, elections may not be held for another three months or more. So far, elections are scheduled to take place on January 8, 2008.

Asif Ali Zardari is expected to handle the Party’s affairs until Bhutto returns from England, where he is currently in school studying in Christ Church, at the University of Oxford. When he returns, control of the Party will be handed over to him. Despite that, Zardari states that he will be answering questions from the media and politicians because Bhutto is still “of a tender age.”

Sunday, November 23, 2008

A Pembroke Pines, Florida teenager killed himself Wednesday, November 19, while broadcasting on the live video site Justin.tv. After making suicide threats and being encouraged by Justin.tv viewers and Bodybuilding.com forum members, Abraham K. Biggs, 19, committed suicide by taking an overdose of opiates and benzodiazepine, which had been prescribed for his bipolar disorder.

Biggs first began blogging about his planned suicide 12 hours before the actual event. He died after taking pills and lying on the bed in front of the webcam. After the broadcast, viewers who apparently thought it was a hoax posted messages such as “OMG”, “LOL”, and “hahahah”.

Hours later, after being alerted by viewers who had noticed that Biggs had stopped breathing, law enforcement and paramedics arrived, discovered his body, and covered the camera. The Broward County Medical Examiner’s Office has reportedly confirmed Biggs’ death.

According to Montana Miller of the Bowling Green State University, the circumstances of this case were not shocking: “If it’s not recorded or documented, then it doesn’t even seem worthwhile. For today’s generation it might seem, ‘What’s the point of doing it if everyone isn’t going to see it?'”

Biggs’ sister Rosalind was angry that neither the website nor its viewers reacted soon enough to save him. “They got hits, they got viewers, nothing happened for hours,” she said. She described him as “very happy” and “friendly and outgoing.” “On a normal day, you couldn’t really tell that he got as low as he did.” However, he did have relationship problems with his girlfriend, according to a friend.

Mental health professionals have warned about the possibility that other mentally troubled people would copy his actions. According to Dr. David Shaffer of Columbia University, “Any video showing it as heroic or romantic or glamorous could reduce the anxiety people might feel about suicide. It becomes a respectable behavior and lowers the threshold of suicide.” He and other psychiatrists recommend that potentially suicidal teens talk to others and “tell what’s going on.”

Thursday, September 15, 2005

The body’s immune system is less effective at quashing disease than it could be – but if it were better the immune system might do more harm than good, according to new research by Michael Deem and colleagues of Rice University in Houston.

The immune system has apparently evolved to be mildly inefficient so that it achieves a balance between quick response to disease and decreased probability of autoimmune disease, a condition in which the immune system attacks healthy tissue.

The authors drew their conclusions from a model of the dynamics of antibody evolution. Their simulations show that while there are mechanisms that would allow the immune system to develop antibodies that respond faster and more strongly against invading pathogens, those mechanisms would also create antibodies that are likely to attack the body’s own healthy cells. The model also bolsters controversial suggestions that chronic infections could lead the immune system awry, ultimately resulting in rheumatoid arthritis or other autoimmune ailments.

The study will be detailed in a forthcoming issue of the journal Physical Review Letters.

Wednesday, February 8, 2006

The H5N1 Avian Flu virus, also known as Bird Flu, has been found in Nigeria by Italian scientists. Tests done on samples in a laboratory confirm that the strain is the one that can kill people, although no human cases have been reported said the Paris-based United Nations body. This is the first time is has appeared on the continent.

Reports say tests of the virus closely resemble the virus in Asia. The virus has been discovered in poultry flocks in a large Nigerian farm. “It is the first report of the disease in Africa,” the Paris-based World Organization for Animal Health (OIE) said on Wednesday.

“It’s going to be very difficult to mount an eradication campaign,” said Dr. Alex Thiermann, president of the OIE’s international animal health code, from Paris, France. “With what we have today, it is a highly pathogenic H5N1 – the same, or very closely related to the previous ones,” said Thiermann. He also added, “a full genetic analysis of sample viruses is expected to be completed by late Thursday.”

Maria Zampaglione of the Paris-based OIE said “An outbreak has been detected. A local poultry farm keeping 46,000 birds was affected, of which 42,000 were infected and 40,000 of those, died.” The farm is located in Jaji, which is a village in the northern state of Kaduna.

“The farm is located near the Niger Delta, one of the largest over-wintering areas for wild birds in Africa.” said Thiermann.

Quarantine measures on the control and movement of poultry have been taken, and the farm has been disinfected said Nigerian authorities.

“However, it is too early to say how serious the outbreak is and how big its spread could be,” said Ilaria Capua of the Italian bird flu centre in Padua. “We have to be cautious in evaluating the possible implications of these findings.”

In Rome, Samuel Jutzi, a director of the UN’s Food and Agriculture Organization said, “if the situation in Nigeria gets out of control, it will have a devastating impact on the poultry population in the region. It will seriously damage the livelihoods of millions of people and it will increase the exposure of humans to the virus.”

“When you have 46,000 chickens in a house, usually you have some degree of biocontainment…So these (chickens) are not likely to be the ones to first encounter migratory waterfowl,” Thiermann said.

Wildlife circles have been debating on whether or not wild birds are spreading the virus around the globe. Experts believe they are playing a role but most believe poultry movement, poultry products and poultry manure is the main cause of the spreading of the virus.

“But probably not in this case,” said Thiermann. “While it’s too early to blame the wildlife, it’s very likely to be in an area that’s remote enough that it’s not likely to be associated with international trade.”

OIE spokeswoman Zampiglione also said, “Experts had been fearing an African outbreak for months. The conditions there are more likely to lead to contagion from birds to man.”