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Thursday, August 2, 2007

The Interstate 35W Mississippi River eight-lane bridge in Minneapolis, Minnesota has collapsed on both sides of the highway over the Mississippi River during rush hour.

Previous reports indicated at least nine people had died, but Minneapolis police revised this to four during a 7:30 a.m. (local time) press conference. Tim Dolan, the Minneapolis Police Chief later stated that “several [adding to the four] people are confirmed dead at the scene,” but would not elaborate on how many. At least 79 have been injured and at least 8 are still missing, still believed to be in the rubble.

The road was busy with bumper-to-bumper traffic in four lanes when the entire 1907 foot (581 m) steel arch bridge collapsed. At least 50 cars were traveling on the bridge, including a school bus. The Red Cross said that 60 children were aboard a school bus, and that ten of those were admitted to a hospital.

The entire length of the bridge over the river collapsed at 6:05 p.m. CDT (UTC-5). The bridge, built in 1967, cleared the water level by 64 feet; the deck surface and pavement were considerably higher.

Reports say that people may be trapped in the water. Further, “many voids may contain survivors, but we cannot search those voids until it’s safe,” said Jim Clack, Minneapolis Fire Chief, during a press conference.

“One has died from drowning,” said a doctor from the medical center during an 8:00 pm press conference, who also said that so far 22 are in “yellow condition” and at least six are in “critical condition.”

Minneapolis officials have stated during an earlier press conference that “people are being sent downtown and all survivors are off the bridge. We are seeking help from the Red Cross.” and “[…]at least 60 children are receiving trauma care some with severe injures, some with minor injuries.”

Most of the injured have been received by Hennepin County Medical Center in downtown Minneapolis for medical treatment. Area hospitals are requesting all off duty staff and all Minneapolis ambulances to report. Residents are being encouraged to stay away from the area to let emergency crews do their work.

It is not known what caused the collapse, but there was construction being performed on the bridge’s road surface which included the use of jackhammers and the FBI has ruled out terrorism.

“Although it is much too early to make any determination of the cause, we have no reason at this time to believe there is any nexus to terrorism,” said Paul McCabe, an FBI spokesman.

In 2001 a stress inspection was done and Minnesota Department of Transportation stated that the bridge “should not have any problems with fatigue cracking in the foreseeable future.”

Typically an eight-lane bridge, the bridge was reduced to four lanes (two in each direction) during the current construction. The Minnesota Department of Transportation (Mn/DOT) had just announced overnight lane reductions on the bridge to one lane in each direction for the late evening hours of July 31 and August 1.

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.