Tuesday, April 16, 2013

In a study published yesterday online in the journal Neuropsychopharmacology, scientists from the Indiana University School of Medicine say the taste of beer alone triggers a release of dopamine, the brain’s chemical reward signal.

Dopamine is a chemical released by the human body and is associated with drug- and alcohol-related use and pleasure. In men with family histories of alcoholism, the dopamine release was greater.

The scientists sprayed 15 milliliters (about one tablespoon) of either beer or a sports drink into the mouths of the participants over a period of 15 minutes, scanning their brains and noting increases in dopamine levels were present. According to the scientists, 15 mL of beer does not contain enough alcohol for the alcohol to cause intoxication or any noticeable increase in blood-alcohol levels.

Brain scans were accomplished with positron emission tomography, an imaging technology using radiation to obtain three-dimensional images of, in this case, the human brain.

The senior author of the study, Dr. David A. Kareken, said “We believe this is the first experiment in humans to show that the taste of an alcoholic drink alone, without any intoxicating effect from the alcohol, can elicit this dopamine activity in the brain’s reward centers”.

Professor of substance use, policy and practice Peter Anderson at Newcastle University in the UK said many “sorts of cues” can cause an urge to drink. “This paper demonstrates that taste alone impacts on the brain functions associated with desire. This is not surprising — if taste increases desire, it has to impact on brain functions.”

Tuesday, March 29, 2005A team of Australian surgeons yesterday reattached both hands and one foot to 10-year-old Perth boy, Terry Vo, after a brick wall which collapsed during a game of basketball fell on him, severing the limbs. The wall gave way while Terry performed a slam-dunk, during a game at a friend’s birthday party.

The boy was today awake and smiling, still in some pain but in good spirits and expected to make a full recovery, according to plastic surgeon, Mr Robert Love.

“What we have is parts that are very much alive so the reattached limbs are certainly pink, well perfused and are indeed moving,” Mr Love told reporters today.

“The fact that he is moving his fingers, and of course when he wakes up he will move both fingers and toes, is not a surprise,” Mr Love had said yesterday.

“The question is more the sensory return that he will get in the hand itself and the fine movements he will have in the fingers and the toes, and that will come with time, hopefully. We will assess that over the next 18 months to two years.

“I’m sure that he’ll enjoy a game of basketball in the future.”

The weight and force of the collapse, and the sharp brick edges, resulted in the three limbs being cut through about 7cm above the wrists and ankle.

Terry’s father Tan said of his only child, the injuries were terrible, “I was scared to look at him, a horrible thing.”

The hands and foot were placed in an ice-filled Esky and rushed to hospital with the boy, where three teams of medical experts were assembled, and he was given a blood transfusion after experiencing massive blood loss. Eight hours of complex micro-surgery on Saturday night were followed by a further two hours of skin grafts yesterday.

“What he will lose because it was such a large zone of traumatised skin and muscle and so on, he will lose some of the skin so he’ll certainly require lots of further surgery regardless of whether the skin survives,” said Mr Love said today.

The boy was kept unconscious under anaesthetic between the two procedures. In an interview yesterday, Mr Love explained why:

“He could have actually been woken up the next day. Because we were intending to take him back to theatre for a second look, to look at the traumatised skin flaps, to close more of his wounds and to do split skin grafting, it was felt the best thing to do would be to keep him stable and to keep him anaesthetised.”

Professor Wayne Morrison, director of the respected Bernard O’Brien Institute of Microsurgery and head of plastic and hand surgery at Melbourne’s St Vincent’s Hospital, said he believed the operation to be a world first.

Thursday, January 12, 2017

United States President Barack Obama gave his official farewell address on Tuesday night from McCormick Place in Chicago, reflecting on personal and national accomplishments. This is expected to be his last major speech before officially handing the reins to president-elect Donald Trump on January 20.

Obama’s speech was wide-ranging. He thanked his family and the nation, spoke of the need for unity, noted the country’s accomplishments and need for improvement in areas like education and civil rights, and spoke about the need for pride in U.S. accomplishments, citing milestones of U.S. history and of his presidency specifically. “It’s why GIs gave their lives at Omaha Beach and Iwo Jima; Iraq and Afghanistan – and why men and women from Selma to Stonewall were prepared to give theirs as well.”

The president also addressed his country’s troubled history with race and racism, an issue many black citizens feel he has avoided. Despite this, Chauncy Devega of Salon described the president as “a role model of calm, cool reflective black masculinity: a man utterly at home in his own skin.” Obama described the concept of a post-racial U.S. “unrealistic” and particularly cited the need for reform in education and the criminal justice system and greater acceptance of scientific evidence, particularly evidence supporting action to counteract climate change.

However, publications including The Washington Post and Salon have given particular focus to another aspect of the president’s address: the country’s increasing political tensions and controversies involving access to news and information, both accurate and inaccurate. “We become so secure and our bubbles,” said Obama, “that we start accepting only information, whether it’s true or not, that fits our opinions instead of basing our opinions on the evidence that is out there,” calling this trend “a third threat to our democracy.”

The Washington Post characterized Obama’s comment, “If every economic issue is framed as a struggle between a hard-working white middle class and an undeserving minority, then workers of all shades will be left fighting for scraps while the wealthy withdraw further into their private enclaves,” as a “not-so-subtle jab” at the campaign tactics of President-elect Donald Trump. The Telegraph describes Obama’s warnings about the need to protect democracy as “a thinly veiled slight to the divisive rhetoric of Donald Trump’s election campaign, which included attacks on Muslims, the disabled, women and immigrants.” The president went on to call on the public to “reject the first dawning of every attempt to alienate any portion of our country from the rest or to enfeeble the sacred ties that make us one America. We weaken those ties when we allow our political dialogue to become so corrosive […] We weaken those ties when we define some of us as more American than others when we write off the whole system as inevitably corrupt and when we sit back and blame the leaders we elect without examining our own role in electing them. It falls to each of us to be those anxious, jealous guardians of our democracy.”

Despite this, when the mention of Donald Trump brought boos from the crowd, Obama reiterated the importance of the long history of peaceful transfers of power from one president to the next: “No no no no no. […] I committed to President-elect Trump that my administration would ensure the smoothest possible transition, just as President Bush did for me.” However, this was not unaccompanied by a call to action. Near the end of the speech, he insisted citizens dissatisfied with elected officials should “lace up your shoes, grab a clipboard, get some signatures and run for office yourself.”

Overall, the departing president’s speech focused on accomplishment, echoing the “Yes we can” slogan from his 2008 campaign: “If I have told you eight years ago, that America would reverse a great recession, reboot our auto industry, and unleash the longest stretch of job creation in our history. If I had told you, that we would open up a new chapter with the Cuban people, shut down Iran’s nuclear weapons program without firing a shot, take out the mastermind of 9/11[…] If I had told you that we would win a marriage equality and secure the right to health insurance for another twenty million of our fellow citizens. If I had told you all that, you might have said our sights were set a little too high. But that’s what we did.”

But when the crowd began shouting “Four more years! Four more years!” Obama, with a small laugh, answered, “I can’t do that.”

Monday, June 2, 2008

Leading up to the 2008 COMPUTEX show, the “2008 WiMAX Expo Taipei” is being held. Co-organized by Taiwan External Trade Development Council, Taipei Computer Association (TCA), the Industrial Development Bureau of the Ministry of Economic Affairs (MOEA), M-Taiwan Office, and WiMAX Forum, the expo will be held in Taipei Show Hall two. It is planned to run for five consecutive days commencing on June 2. In addition, the 2008 WiMAX Forum Operator Summit will be also held at Far Eastern Plaza Hotel on June 2 & 3.

According to the Taipei Computer Association (TCA), there will be sixty networking companies and manufacturers participating in this show. Their aim, to demonstrate the telecommunications technology in Taiwan. About seventy world-class operators from the networking industry will be invited to join the Forum Summit.

Following the Ministry of Economic Affairs signing an extended Memorandum of Understanding (MOU) with Intel on April 21, both will work together to promote the WiMAX industry in Taiwan. Intel, participating in both COMPUTEX and the WiMAX expo has a number of WiMAX Segways to demonstrate the technology. Their involvement will also include acting as hosts for the 2008 e21FORUM where Mobile Web 2.0 will be discussed.

A bus promoting the WiMAX expo will also be in service with Far EasTone Telecommunications and First International Telecom doing live demonstrations of their enterprise offerings.

Saturday, September 19, 2009

A study carried out in the United Kingdom revealed that the life expectancy for men could be reduced by 10–15 years after the age of 50 due to smoking.

The British Medical Journal carried out a study over a time period of 38 years in the United Kingdom which examined the health of 19,000 men aged 40–69. They were examined between 1967–1970. After tracing the history of the men, the survey revealed that smoking, high blood pressure and high cholesterol reduced the life expectancy of men by 10–15 years after they reached the age of 50. The research was published on the BMJ‘s website on Friday.

The researchers from the University of Oxford in England were focussing on smoking, high blood pressure and cholesterol due to the fact that they are the main cardiovascular risk factors. Dr. Robert Clarke from the university said: “We’ve shown that men at age 50 who smoke, have high blood pressure and high cholesterol levels can expect to survive to 74 years of age, while those who have none of these risk factors can expect to live until 83. It is precisely this kind of very prolonged follow-up study that is necessary to get these results — that modest differences in heart risk factors can accurately predict significant differences in life expectancy.”

“The results give people another way of looking at heart disease risk factors that can be understood more readily. If you stop smoking or take measures to deal with high blood pressure or body weight, it will translate into increased life expectancy.”

Friday, June 5, 2009

General Motors Corporation (GM), an American automaker which has filed for bankruptcy protection, announced on Friday that the Penske Automotive Group (PAG) was selected to purchase Saturn Corporation. The transaction should be completed in October.

The purchase includes rights to the Saturn brand, its five current models and its dealership network. Two models would be discontinued, the Sky and Astra. GM would continue building the Aura sedan, the SUV’s, Vue and Outlook for at least two more years.

Saturn has 350 dealers across the United States. The dealers employ more than 13,000 jobs and sell only the Saturn autos. Canadian Saturn dealers are not included in the deal.

According to Penske future Saturn vehicles will be fuel economy focused. An expert indicated that this would move Saturn back to its roots of a entry level car company. PAG is in talks with several international automakers to replace GM after 2011. Automotive News reports that Renault Samsung Motors of Korea is the most likely candidate.

Penske wants Jill Lajdziak, Saturn’s general manager, and Tom LaSorda, former Chrysler President to head up the company when it is independent of GM.

Serra Automotive in Grand Blanc Township, Genesee County, Michigan, is in talks to take a partial ownership in a new Saturn lead by Penske.

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.