moitruongtoancau.com

Wednesday, February 16, 2005

Michael Gurian, psychologist and author of “What Could He Be Thinking?“, has claimed to identify approximately one hundred structural differences between male and female brains in a recent study. Gurian comments:

“Men, because we tend to compartmentalize our communication into a smaller part of the brain, we tend to be better at getting right to the issue, the more female brain (will) gather a lot of material, gather a lot of information, feel a lot, hear a lot, sense a lot.“

One major structural difference that Gurian has made clear is that males generally have more activity in the mechanical centers of the brain, while women have more activity in centers of the brain dedicated to verbal communication and emotion. A clear example of this is the hypothetical situation of giving a child a toy. He explains it as such:

“That doll becomes life-like to that girl, but you give it to a two-year-old boy and you are more likely, not all the time, but you are more likely than not to see that boy try to take the head off the doll. He thinks spatial-mechanical. He’s using the doll as an object.“

Another expert, Dr. Marianne Legato, says it all boils down to genetics, noting that the Y chromosome (which only males carry) has “at least 21 unique genes unique to males which control many of the body’s operations down to the level of the cells.”

Gurian agrees that culture is significant in brain development, but argues that biology plays an equally important role. He makes a point of how the MRI scans show that the female corpus callosum, the center of the brain which regulates communication between the brain’s hemispheres, is larger than the male’s. On the other hand, the scans also show that information flows more freely between the hemispheres of the male brain.

The exact role that brain structure plays in behavior, however, has been an area of considerable contention in science for literally hundreds of years. Early studies in craniometry conducted by Paul Pierre Broca were used to attempt to distinguish differences between human races, though have now been dismissed as scientific racism. The nature-nurture debate has raged for centuries in a variety of forms, without yet any clear resolution as to the role in which innate biological tendencies interact with environmental conditions or willed behavior. As such, studies relating to brain structure and claims to innate behavior often generate substantial controversy.

MIT anthropologist of science Joseph Dumit’s study of brain imaging in his book Picturing Personhood: Brain Scans and Biomedical Identity, noted that the apparent “transparency” of such pictures (the appearance that they can be easily interpreted by laymen, when they are often the source of ambiguity and dispute by even highly-trained neurosurgeons) has led to their proliferation as indicators of objective truth in media and in courts of law, and that such conclusions are often knowingly exaggerated by the specialists creating the images for better visual effect.

The timing of Gurian’s book comes on the heels of another controversy over gender differences sparked by comments made by Harvard president Lawrence Summers, who blamed low numbers of women in the sciences on genetic differences. Summers has been criticized by a large number of academics and scientists, as well as by many news publications, in the wake of what he was reported as saying during a conference on January 14.

Tuesday, March 24, 2009

During a seminar with students at the Mechinat Rabin in Oranim, Israeli veterans of the 2008–2009 Israel–Gaza conflict revealed accounts of the deaths of unarmed civilians. This has prompted new allegations of war crimes and a review and investigation into the rules of engagement within the Israel Defense Forces (IDF).

There are two accounts in which fears of war crimes have been raised. In one, an Israeli commander ordered the killing of an old woman walking down a road and coming within 100 metres of an IDF position. There was no warning that a perimeter existed, no attempt was made at a warning and no attempt was made to ascertain as to whether the old woman posed a threat.

In a second account a woman and her two children were killed by a sniper when she was ordered to leave a building being occupied by Israeli soldiers. The commander of the unit commandeering the building however failed to inform a sniper placed on a roof top and the three were killed according to standing instructions issued to the sniper.

In addition to specific cases, the veterans spoke of a general contempt towards the Palestinians, and disregard for their lives. One squad leader speaking at the military academy said that the attitude of those both above and below was that”…we should kill everyone there [in…Gaza]. Everyone there is a terrorist.” With his immediate commanding officer advocating the clearing of buildings by shooting all within without warning.

An Israeli spokes person speaking to the BBC said that the incidents spoken of were well known within the brigade responsible and that any actions that took place were within its rules of engagement, however in response to the accusations the Military Advocate General of the IDF, Brigadier General Avichai Mendelblit has instructed the Israeli Military Police Investigation unit to investigate the allegations.

Talking to Israel Radio Israeli Minister of Defense Ehud Barak said that the IDF is “…the most moral army in the world” though individual exceptions may have occurred, and that these would be investigated.

Others in Israel whilst not denying that these incidents might have occurred speak of lack a context in which they have been reported.

Internationally the accusations are not seen as individual soldiers being responsible for war crimes but that war crimes may have been committed by the Israeli military as a whole, that its rules of engagement were drafted and implemented in such a way that they failed to sufficiently distinguish between combatants and civilians.

In response to the allegations Richard Falk, the UN special rapporteur for human rights in the Palestinian territories, said that the Geneva Conventions required that there had to be a clear distinction between military targets and the civilian population and that “…If it is not possible to do so, then launching the attacks is inherently unlawful and would seem to constitute a war crime of the greatest magnitude under international law…”

If it is to have indeed failed to protect the lives of Palestinian civilians then the Israeli military not only violated international law but its own moral code of conduct as outlined in its tenet of purity of arms.

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.

Monday, November 28, 2005

SpaceX called off the much-delayed inaugural launch of their new Falcon 1 rocket on Saturday from Kwajalein’s Omelek Island launch site. The intent was to launch the U.S. Air Force Academy’s FalconSat 2 satellite, which will monitor plasma interactions with the Earth’s upper atmosphere and magnetosphere.

The launch was delayed, then finally cancelled after an oxygen boil-off vent had accidentally been left open. The oxygen was unable to cool the helium pressurant, which then proceeded to evaporate faster than it could be replenished. A main computer issue, probably serious enough to cause a scrub on its own, was also discovered.

This long-anticipated flight was originally expected to be launched in January 2005, however a series of setbacks forced a series of delays, with the flight most recently scheduled to be in early 2006. It was intended to be launched from the Kwajalein atoll in the middle of the Pacific Ocean.

The maiden voyage was originally intended to launch from Vandenberg Air Force Base in California with a Naval Research Laboratory satellite and a Space Services Incorporated space burial payload.

Monday, March 20, 2006

Fears of contaminated bone and skin grafts are being felt by unsuspecting patients following the revelation that funeral homes may have been looting corpses.

Janet Evans of Marion Ohio was told by her surgeon, “The bone grafts you got might have been contaminated”. She reacted with shock, “I was flabbergasted because I didn’t even know what he was talking about. I didn’t know I got a bone graft until I got this call. I just thought they put in screws and rods.”

The body of Alistair Cooke, the former host of “Masterpiece Theatre,” was supposedly looted along with more than 1,000 others, according to two law enforcement officials close to the case. The tissue taken was typically skin, bone and tendon, which was then sold for use in procedures such as dental implants and hip replacements. According to authorities, millions of dollars were made by selling the body parts to companies for use in operations done at hospitals and clinics in the United States and Canada.

A New Jersey company, Biomedical Tissue Services, has reportedly been taking body parts from funeral homes across Brooklyn, New York. According to ABC News, they set up rooms like a “surgical suite.” After they took the bones, they replaced them with PVC pipe. This was purportedly done by stealth, without approval of the deceased person or the next of kin. 1,077 bodies were involved, say prosecuters.

Investagators say a former dentist, Michael Mastromarino, is behind the operation. Biomedical was considered one of the “hottest procurement companies in the country,” raking in close to $5 million. Eventually, people became worried: “Can the donors be trusted?” A tissue processing company called LifeCell answered no, and issued a recall on all their tissue.

Cooke’s daughter, Susan Cooke Kittredge, said, “To know his bones were sold was one thing, but to see him standing truncated before me is another entirely.” Now thousands of people around the country are receiving letters warning that they should be tested for infectious diseases like HIV or hepatitis. On February 23, the Brooklyn District Attorney indicted Mastromarino and three others. They are charged with 122 felony counts, including forgery and bodysnatching.

See the discussion page for instructions on adding schools to this list and for an alphabetically arranged listing of schools.

Due to the damage by Hurricane Katrina and subsequent flooding, a number of colleges and universities in the New Orleans metropolitan area will not be able to hold classes for the fall 2005 semester. It is estimated that 75,000 to 100,000 students have been displaced. [1]. In response, institutions across the United States and Canada are offering late registration for displaced students so that their academic progress is not unduly delayed. Some are offering free or reduced admission to displaced students. At some universities, especially state universities, this offer is limited to residents of the area.

Sunday, July 1, 2007

A young woman was killed Friday night after an accident occurred on a gyrating ride at the Playland amusement park in Rye, New York in the United States. The woman, Gabriela Garin, was a worker at the amusement park, and had worked there for the past seven years.

The accident occurred near the end of Garin’s shift; as she was loading riders onto the ride. The ride’s new operator, unaware of Garin’s presence, started the ride while Garin was still on it. The new operator then noticed Garin, and shut the ride down in 20 seconds, but Garin had already been ejected from the ride and killed, according to a park spokesperson.

The ride is an attraction that spins people around in two-seat cars, inside a darkened tent to flashing lights and music.

This incident is not the first in the ride’s history. In 2004, a seven-year-old from Connecticut managed to free herself from the ride’s restraining bars, and climb onto the front edge of her seat. She fell soon after the ride started. A safety precaution was put in place after this incident, however, the spokesperson acknowledged that it was not followed when Garin was killed.

The company which owns the ride shut it down, along with two other rides it owns at the park.

This is the fourth fatality in the park’s history. The park features more than 50 rides, a pool, and a beach. It attracts more than 1 million visitors annually.

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.