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.

Saturday, May 21, 2005

In an effort to ease complaints by the U.S. and Europe about a heavy influx of low priced Chinese goods, China will raise export tariffs on 74 categories of textile products in June. This follows plans from the U.S. to impose quotas on Chinese textiles and clothing.

Products likely to see an increase from the Chinese move include synthetic fiber shirts, trousers, knit shirts and blouses, cotton shirts, and combined cotton yarn. Last week, similar restrictions were imposed by the U.S. on cotton trousers, knit shirts, and underwear. Currently, a 2.5 cent charge per item is imposed; the new tariff will raise this to the equivalent of 12 cents per piece now. While this is a fourfold increase, it is not expected to affect consumer prices. Because of this, some doubt the tariff will have any effect on correcting the trade imbalance.

This move is in response to U.S. trade quotas imposed due to concerns that increased Chinese goods would put U.S. textile manufacturers out of business. According to Auggie Tantillo, executive director of the American Manufacturing Trade Action Coalition, a textile industry group in the U.S., the move will preserve 10,000 U.S. jobs. The new U.S. trade quota will limit the growth of Chinese textile imports to 7.5 percent compared with shipments over the past year.

Prior to January 1, a global quota system helped regulate the trade. With the quota system gone, fears have arisen that a flood of Chinese goods could undercut U.S. competitiveness in the market. China is able to market its goods cheaply due to an artificially weak yuan. The U.S. Treasury criticized the China yuan policy as “highly distortionary”, posing a major risk to China’s economy itself and to global economic growth. They challenged China to revalue its currency to bring it to a level they believe will allow fairer competition between global manufacturers.

China has disputed the charges of the U.S. Treasury. Chinese Commerce Minister Bo Xilai said, “I believe they are not reasonable”.

Laura Jones, a representative of large retailers, also criticized the move, saying “These restrictions on imports from China will do absolutely nothing to help the U.S. textile industry — and the government knows it.”

China has seen a boom in economic growth in recent years due to growing trade surpluses with the West, but economists worry that the trade gap will cause longer term global economic problems. China’s textile and apparel exports are the most noteworthy example, with exports up over 1,000 percent in some categories this year and the rapid loss of marketshare and jobs by U.S. textile manufacturers.

Beginning in 1978, the Chinese economy has been transforming from a Soviet-style centrally planned economy to more of a free market style system, under the rigid political control of Communist Party of China.

To this end, the government has leveraged foreign trade to stimulate economic growth. The result has been a fourfold increase in GDP, making China the sixth largest economy in the world. By 2012 the People’s Republic of China may have the highest GDP in the world.

According to U.S. statistics, from 1999 to 2004 China’s trade surplus with the U.S. doubled to $170 billion. Wal-Mart is China’s seventh largest export partner, just ahead of the United Kingdom.

However, the gains from their “socialist market economy” have not been without problems. The Chinese leadership has often experienced the worst results of socialism and capitalism: bureaucracy, lassitude, corruption, and inflation. Inflation rates have been an on-going challenge, reaching as high as 17% in 1995.

Environmental deterioration is a longer-term threat to economic growth. In 1998, the World Health Organization reported that China had seven of the 10 most-polluted cities on Earth. Another concern among some economists is that China’s economy is over-heating, and due to its global economic expansion this could have major repercussions among other nations.

Typically, wages have been low and working conditions poor, with workers living in restrictive dormitories and working at boring factory jobs. However, recent labor shortages have started improving conditions, and raising the minimum wage towards the equivalent of 100-150 US dollars per month. The labor shortages are in part a result of a demographic trend caused by strict family planning.

• “Economy of the People’s Republic of China” — Wikipedia, May 22, 2005
• “China raises tariffs on textile exports. Beijing hoping to counter criticism from U.S., Europe.” — CNN, May 21, 2005
• “China to increase export tariffs” — CNN, May 19, 2005

Thursday, February 14, 2008

The German noble family of Waldburg-Wolfegg has sold the manuscript known as the The Housebook to an unknown buyer. There is speculation in the German press that it was purchased by Baron August von Finck who currently resides in Switzerland, and that the price paid was €20 million.

It is unclear whether the purchase is in fact legally valid because the manuscript was sold without the permission of the government of Tübingen required by the law of fideikommiss dissolution (similar to the common law institution Fee tail). German law forbids the export of such a precious manuscript, which is registered in the list of national cultural property.

The Housebook of Wolfegg is an illustrated manuscript that was created after 1480 by an unidentified artist known as the “Master of the Housebook” (or Master of the Amsterdam Cabinet) and possibly other artists. It was exhibited at the National Gallery of Art in the United States in 1998.

Saturday, October 22, 2005

New Paltz, New York — More than 350 U.S. students took part in a demonstration Friday outside the SUNY New Paltz Student Union Building where student leaders used a bullhorn from the rooftop to rally the gathering on the concourse below. University police dispersed student leaders from the roof which was followed by more than 100 students storming the Haggerty Administration Building (HAB).

During the 2004–2005 academic year, students lobbied for a $10 million renovation project for their Student Union Building, which has not been renovated since its construction more than 30 years ago.

HAB spokesman Eric Gullickson said that the supplemental appropriation for the project is the largest in the history of the college and that the six-member advisory committee includes three students but that; “the Student Association, which was offered the first seat on this committee, declined the opportunity,” Gullickson said.

Student leaders, including Student Body President R.J. Partington III and Student Senate ChairJustin Holmes, who played a role in organizing this demonstration, testified during the Spring 2005 semester before the New York State Assembly Committee on Higher Education, eventually winning the renovation project. Holmes says that Gullickson’s assertions are; “an out-and-out lie. The SA was never offered such a seat. We were offered 1 seat on a seven seat committee, with the administration selecting the other six members.”

The major arguments for a capital project on the Student Union Building were that it:

• did not accommodate organizations and organization office needs
• lacked crucial technology for student mobilization
• was built for a student population less than half the size of 2005, and
• was one of the longest standing Student Unions in the SUNY system which had not undergone a renovation

During the Fall 2005 semester the HAB claimed that it would oversee the renovation project, citing the need for a larger lobby and bookstore.

The Kingston Daily Freeman reported:

The crystallizing issue for the demonstration was the upcoming $10 million renovation of the Student Union building. The renovation, scheduled to begin in about two years, will be the first major change to the building since it was built 34 years ago, according to college spokesman Eric Gullickson, who said the supplemental appropriation for the project in the state budget is the largest in the college’s history.

Gullickson also said that a six-member committee had been formed to guide the design process, but student leaders, including Partington, were told that the proposed committee would be seven members, including four non-students and two students who were appointed by the HAB.

“No matter the size and makeup of the HAB’s so-called renovation committee, it has nothing to do with the actual renovation process, which will be administered by a student committee, with input from other parties of course considered,” responded Holmes.

During the Fall 2005 semester, Student Body President R.J. Partington III attempted to negotiate with Administrators, including HAB President Steven G. Poskanzer, over the project.

The HAB refused to concede to student demands.

At this point, the Student Senate passed legislation proclaiming that the project would be overseen by a committee where students constitute a majority, and Partington announced that he “did not recognize and would not sit on” any committee that did not meet the needs of students.

Vice President of Acacdemic Affairs & Governance, Stephanie Adika said, “If the HAB won’t even listen to us about our own building, how are they going to listen to us about all the other problems the students have with SUNY New Paltz.”

Friday, April 20, 2007

For the past week, approximately 100 sealing ships have been trapped in ice floes off the northeast coast of Newfoundland. The ships and their crew had been participating in the annual seal hunt off Canada’s easternmost province.

Several of the vessels have been damaged by the ice and supplies are now running low for those sailors awaiting rescue by the Canadian Coast Guard. As of Thursday, 6:00 p.m. EDST, some 20 crew members, out of an estimated 400, had been rescued.

A Coast Guard icebreaker, the Sir Wilfred Grenfell, on mission to free the trapped ships, itself became stuck in the ice. A Department of Fisheries and Oceans (DFO) spokesperson indicated to CTV News that, although the Grenfell had since been freed, another icebreaker, the Ann Harvey, was now trapped. “It’s just such heavy ice that even ice breakers are having trouble,” said Erika Pittman, a communications officer with the DFO.

In addition to the crushing ice, extreme weather conditions have been hampering rescue efforts. Pittman suggested that conditions wouldn’t improve until sometime next week. The amount and thickness of the pack ice, according to Pittman, is the worst it has been for sealers in the past 15 years.

In addition to three icebreakers on hand, the Coast Guard is flying helicopters in to provide food and support to the stranded sailors. Most of the sealing ship captains have refused to abandon their ships, instead staying with them and hoping for a change in conditions or to be freed by the Coast Guard.

“Usually you try to stay with the ship because you think the safety is with the ship because the ship is big, but sometimes it is too late. In this case, we’re hoping that as it changes and the breakers and helicopters are there and we can get them all out,” said Brian Penney, a superintendent with the Coast Guard.

“They’re putting a lot of effort into pulling them out,” said Penny. “But the sheer numbers, it’s a very, very slow process.” According to Penny, approximately 15 of the longliners ships have had their hulls damaged by the ice to the extent that the ships are at risk of sinking.

Critics of the seal hunt point out that the annual hunt is not only “cruel to animals”, but is also a dangerous occupation for the sealers. When sealers have to be rescued by the Coast Guard, “Canadian taxpayers foot the bill,” suggested Rebecca Aldworth, director of Canadian wildlife issues for the Humane Society of the United States.

Wednesday, December 7, 2005

Australian researchers say they have scientifically proven that stress causes sickness. The Garvan Institute in Sydney has discovered that a hormone, known as neuropeptide Y, (NPY) is released into the body during times of stress. Their findings show the hormone can stop the immune system from functioning properly.

“Neuropeptide Y is one of those hormones that gets unregulated or released from neurones when stressful situations occur…it’s known for example that it regulates blood pressure and heart rates so your heart rate goes up but it hasn’t been known that it actually can affect immune cells as well,” said Professor Herbert Herzog, one of the researchers.

Herzog feels it is good to finally have proof of something people have suspected for so long.

“Now we have proven without doubt that there is a direct link and that stress can weaken the immune system and that makes you more vulnerable when you for example have a cold or flu and even in the more serious situations such as cancer can be enhanced in these situations,” said Herzog.

The Garvan Institute study centres on two key events that enable the human body to recognise foreign substances and control invaders. When our body encounters a pathogen (bacteria and viruses), the immune cells retain and interrogate suspects. Their activation is made possible by NPY. These cells then return to the lymph nodes, which are found all over the body, with information about the foreign invaders. The lymph nodes are where decisions about defence are made.

“Most of us expect to come down with a cold or other illness when we are under pressure, but until now we have mostly had circumstantial evidence for a link between the brain and the immune system,” said lead Garvan researcher, associate Professor Fabienne Mackay. “During periods of stress, nerves release a lot of NPY and it gets into the bloodstream, where it directly impacts on the cells in the immune system that look out for and destroy pathogens (bacteria and viruses) in the body.”

In the case of bacteria and viruses, TH1 cells are part of the attack team that is sent out on the ‘search and destroy’ mission. But when their job is done they need to be turned ‘off’ and the immune system reset. The same hormone, NPY, that activates the sentry cells now prompts the TH1 cells to slow down and die.

“Under normal conditions, circulating immune cells produce small amounts of NPY, which enables the immune cells on sentry duty and the TH1 immune cells to operate – it’s a yin and yang kind of situation. But too much NPY means that the TH1 attack is prevented despite the foreign invaders being identified – and this is what happens during stress,” added McKay.

The impact of stress on the body has been observed in athletes. Ph. D researcher at the University of Queensland, Luke Spence, together with the Australian Institute of Sport, studied elite and recreational athletes over five months.

They found elite athletes were more susceptible to respiratory diseases under stress.

“A lot of elite athletes put themselves through vast amounts of physical stress in their training, but also their emotional, psychological stress of feeling the pressure of Australia on their shoulders, wanting to compete and wanting to do their best,” said Spence.

It’s not just athletes who are prone to stress. Pressures at work and at home may cause emotional and mental stress that can be equally damaging. Almost a third of all work absenteeism in Australia is due to illness, costing employers over $10 billion a year.

“I think it has a huge impact for the work force and also for employers – if their employees are constantly stressed, constantly under pressure, they are more likely to get sick,” Spence said.

Further research could lead to the development of new drugs which may inhibit the action of the neuropeptide Y hormone.

Herzog warns people to minimise stress before it becomes a problem.

“Relaxation methods like yoga will help you to prevent that but there will still be people out there that are not responding to that and treatment by interfering with the system will be important,” he said. “There’s obviously some time until such a treatment will be available but this is something we will definitely work towards.”

The Garvan research will be published in the Journal of Experimental Medicine, Volume 202, No. 11.

Thursday, November 8, 2007

India is the latest of the countries where the One Laptop Per Child (OLPC) experiment has started. Children from the village of Khairat were given the opportunity to learn how to use the XO laptop. During the last year XO was distributed to children from Arahuay in Peru, Ban Samkha in Thailand, Cardal in Uruguay and Galadima in Nigeria. The OLPC team are, in their reports on the startup of the trials, delighted with how the laptop has improved access to information and ability to carry out educational activities. Thailand’s The Nation has praised the project, describing the children as “enthusiastic” and keen to attend school with their laptops.

Recent good news for the project sees Uruguay having ordered 100,000 of the machines which are to be given to children aged six to twelve. Should all go according to plan a further 300,000 machines will be purchased by 2009 to give one to every child in the country. As the first to order, Uruguay chose the OLPC XO laptop over its rival from Intel, the Classmate PC. In parallel with the delivery of the laptops network connectivity will be provided to schools involved in the project.

The remainder of this article is based on Carla G. Munroy’s Khairat Chronicle, which is available from the OLPC Wiki. Additional sources are listed at the end.

Friday, January 5, 2007

An ethical controversy has surged in the United States and elsewhere around nine-year-old Ashley X (her family name has not been released). The disabled girl was operated upon at the request of her parents, to prevent her from growing, menstruating and developing breasts. The parents, who wish to remain anonymous, explain their situation on a blog entitled The “Ashley Treatment”. There have been over 1000 reactions on the blog so far.

Ashley suffers a condition termed static encephalopathy with marked global developmental deficits of unknown etiology, which means brain damage of unknown cause leading to a kind of static condition. She can make sounds, move her arms and kick her legs, but she cannot change her position, eat, walk, talk etc. Many of these children are in poor health and die young, but Ashley is in good health. For all of these functions she depends on her caregivers. Most of the day she passes watching her surrounding, lying on a pillow. Her parents call her their “Pillow Angel”, “since she is so sweet and stays right where we place her—usually on a pillow.”

Ashley’s parents want to keep her at home and care for her themselves, and they want to guarantee their daughter’s quality of life. To this end, they say, Ashley underwent several surgical procedures and medical treatments during a period of three years. To attenuate her growth, Ashley was given high doses of the hormone estrogen. Ashley now measures 4ft 5 (1m 35cm) and weighs around 75 lbs (34 kg), which is below her expected length and weight. Her low body weight and size would improve her comfort, and at the same time facilitate the work of her caregivers.

Surgery to remove her uterus (a procedure called a hysterectomy) and breast buds were performed, so Ashley does not menstruate and will not develop breasts, both of which parents think only would cause her discomfort. Since high estrogen levels can cause menstrual bleeding and breast development, the surgery was also meant to limit these effects. She also underwent surgery to remove her appendix, because it would be difficult to diagnose appendicitis given Ashley’s low communication possibilities.