Author: golly gee (page 24 of 111)

2013 nobels

Nobel_medal

The 2013 Nobel prizes in medicine, physics, and chemistry were awarded this week, with the medals for literature, peace and economics are yet to come.

In medicine, James Rothman, Randy Schekman and Thomas Südhof received the prize for elucidating trafficking mechanisms within cells. Cells use vesicles (membrane enclosed bubbles) to transport different cargo between cellular compartments or to other cells. The three researchers won the award for discovering how these vesicles get directed to their intended target and how the cargo is eventually delivered. The Nobel summary can be found here.

In physics, the award goes to François Englert and Peter Higgs. Admittedly, I understand next to nothing about the Higgs boson, except that it is a subatomic particle that was confirmed to exist earlier this year. Particle physics is astonishing. You can read the summary here.

And in chemistry the prize goes to three scientists, Martin Karplus, Michael Levitt and Arieh Warshel. These three chemists, have developed computational models for complex chemical systems. The researchers are being recognized for basically pioneering this whole field. The computations are relevant to multiple areas of chemistry including protein folding, electron transfer and catalysis. The Nobel report is here.

Congratulations to the newly minted laureates.

my science fair projects were never this cool

2013 Google Science Fair winners

2013 Google Science Fair winners

Google has announced the winners of their 2013 science fair:

  • Viney Kumar designed a program that lets drivers know when emergency vehicles are approaching. Hopefuly the program will be able to communicate with cars or drivers through cell phone signals.
  • Ann Makosinski developed a flashlight that gets power when you hold it. By using Peltier tiles,  the difference in temperature between your hand and the ambient air can generate enough power to provide light without any need for batteries
  • Eric Chen was the grand prize winner. He developed a computer model to generate new anti-influenza drugs. The molecules are inhibitors of endonuclease activity and might be active against all flu strains.

These are some smart kids! Read more about their projects here, at the Google Science Fair site and at the Google blog.

 

gross and interesting news

Part of a 2 ft long blood clot

A team of doctors a UCLA vacuumed a 2 foot long blood clot out of a patient’s heart. The clot extended from his leg to the entry of his heart. The doctors used a machine called AngioVac to perform the procedure. According to the UCLA press release here’s how it worked:

A team of UCLA interventional radiologists and cardiovascular surgeons slid a tiny camera down Dunlap’s esophagus to visually monitor his heart. Next, they guided a coiled hose through his neck artery and plugged one end into his heart, against the clot. They threaded the other end through a vein at the groin and hooked the hose up to a powerful heart-bypass device in the operating room to create suction.
“Once in place, the AngioVac quickly sucked the deadly clot out of Mr. Dunlap’s heart and filtered out the solid tissue,” said Moriarty, a UCLA interventional radiologist with expertise in clot removal and cardiovascular imaging. “The system then restored the cleansed blood through a blood vessel near the groin, eliminating the need for a blood transfusion.”
The procedure lasted three hours. Doctors observed Dunlap for three days in intensive care before transferring him to the hospital’s cardiac ward and then discharging him four days later.

The procedure is an faster and less invasive alternative to open heart surgery.

 

 

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