Half of all cases of Alzheimer’s disease may be misdiagnosed.

 

It’s currently impossible to definitively diagnosis Alzheimer’s disease while the patient is alive.  Researchers recently analyzed around 800 brains from Alzheimer’s patients after they died, and learned that only about half of them actually had the disease.  The other half suffered from other forms of dementia.  A reliable way to diagnose the specific type of dementia from which patients are suffering is critical to guiding treatment for patients and for researching the disease processes.

http://pagingdrgupta.blogs.cnn.com/2011/02/23/half-of-alzheimers-cases-misdiagnosed/?hpt=T2

A bionic arm controlled by the patient’s own nerves

 

After an amputation, the nerves are left like programmed data cables floating in space.  Dr. Todd Kuiken, director of the Center for Bionic Medicine and director of Amputee Services at The Rehabilitation Institute of Chicago, has led a team that has made prosthetic limbs that utilize the body’s own remaining limb-controlling nerves after an amputation to allow them to control prosthetics just by thinking.  The person thinks about what they want to move, which send impulses to the salvaged nerves that have been implanted into chest muscle.  The resulting tiny changes in chest muscle activity are then translated into electical impulses that move the limb in the same manner that the person was thinking to move it.

http://pagingdrgupta.blogs.cnn.com/2011/02/17/bionic-arm-gives-hope-for-amputees/?hpt=C1

Garage collpase in San Antonio

On February 14 a six-story parking garage being constructed at the University Hospital in San Antonio collapsed, injuring 2 workers, one critically.   Workers reported hearing rumbling, and then air horns prompted the evacuation of 120 construction employees.  The collapse brought down 1,500 tons of concrete and steel into a two-story pile of rubble. “We heard a big old bang and then looked across the street and saw beams coming down and clouds of smoke,” said Laura Moreno, an employee at Wheelchairs Plus, which faces the garage. “The workers were all running away from the building. It was a scary sight.” 

Read more: http://www.mysanantonio.com/news/local_news/article/Some-120-workers-got-out-before-garage-collapse-1012721.php#ixzz1E8yRkRHC

Watch the collapse here:  http://www.woai.com/news/local/story/Video-shows-hospital-parking-garage-collapse/kKxBwI6ppEKwAOyXzE2eYw.cspx

A new planet in our solar system?

Astrophysicists Daniel Whitmire and John Matese from the U of Louisiana say that the NASA Wise telescope has provided data that a giant gas planet four times the size of Jupiter may be lurking in the outer solar system, far beyond Pluto and 15,000 times farther away from the sun than Earth. 

http://news.blogs.cnn.com/2011/02/15/scientists-telescope-hunt-massive-hidden-object-in-space/?hpt=C2

This massive object was first hypothesized in 1984 as Nemesis, a brown dwarf star companion to the sun.  Now, evidence exists that the object may be a giant gas planet, which Matese and Whitmire have named  Tyche, after the good sister of the goddess Nemesis in Greek mythology.   Within 2 years there should be direct evidence of this gas planet, if it exists.  If it’s there, it will probably be composed of hydrogen and helium and have colorful spots, bands and clouds like Jupiter.

The presence of such a massive object in the outermost reaches of our solar system could explain a barrage of comets from an unexpected direction.  

http://www.space.com/9612-giant-stealth-planet-explain-rain-comets-solar-system-edge.html

Also, its 27 million-year orbit could explain a pattern of mass extinctions on Earth.

http://www.space.com/8028-sun-nemesis-pelted-earth-comets-study-suggests.html

Tyche was the goddess of fortune, chance, providence and fate – the divinity guiding and conducting the affairs of the world.  Nemesis was regarded as the downside of Tyche who provided a check on extravagant fortune. The pair were often depicted as companions in Greek vase painting.  In the picture below, Nemesis is shown with her arm around Tyche.