ERNSTFALLFEST Archives

September 2007

ERNSTFALLFEST@LISTSERV.MIAMIOH.EDU

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
hewie sheldon <[log in to unmask]>
Reply To:
hewie sheldon <[log in to unmask]>
Date:
Wed, 12 Sep 2007 06:56:54 +0000
Content-Type:
text/plain
Parts/Attachments:
text/plain (17 lines)
International company Web Electronic Industry
is taking the candidates in the USA for the position of Local Agent.
We are looking for the trustworthy person with excellent organizational and communicative skills.
Good knowledge of computer and business relations practice will be your advantage.
This is a part-time job which can be combined with any permanent or another part-time job.
Average workload is up to 8 hours a week.
No special experience is necessary. Excellent compensation
package, the salary starts from $20,000 a year.
If you got interested in our vacancy and you have any questions,
please contact us [log in to unmask]
The offer is for USA citizens only.

In your brain right now, a motor protein called kinesin is shuttling vesicles loaded with neurotransmitters to the synapses in your brain, allowing you to read this. While some researchers are trying to make similar molecular motors scoot around and throw switches on electronic chips, it's hardly certain these motors can ever do better than the electrical contacts that are routinely used today. The future of biological nanotechnology may not be clear, but what is, says Professor
18 Stanford Scientific Review successfully demonstrated their use as highly sensitive toxic gas sensors, and with Professor Calvin Quate (Electrical Engineering), has commercialized nanotubes as scanning probe tips to increase probe resolution and tip durability. An area that Dai has just begun exploring is the drug delivery potential of carbon nanotubes. "The tube has a large surface area and is empty inside. So either you can attach the drug to the outer surface, or fill it up like a test tube," says Dai. Furthermore, multiple functional molecules can be attached to the surface: "Say, a molecule that fluoresces to tell you where the drug is in the cell and an antibody that specifically targets the site of drug delivery." So far, Dai reports that his research finds nanotubes to be quite "biologically friendly."
Nature's own marvelous nanoscale machines include motors that spin bacterial flagella at up to 1000 revolutions per second and polymerases that step along DNA and RNA to facilitate the flow of genetic information. Block, along with other Stanford researchers such as Professors W. E. Moerner (Chemistry) and Steve Chu (Physics), are studying Nature's machines through single molecule science. This young field is devoted to following molecules one at a time rather than observing their averaged behavior, as has been done traditionally. To understand why average properties may obscure molecular behavior, "Consider a ship traveling from New York to San Francisco," says Block. "If it's small enough, it will travel down into the Caribbean and go across the Panama Canal and then back up to San Francisco. If it's a big oil tanker, it won't fit through the Panama Canal; it's got to go all the way around Cape Horn. But the average path of a ship traveling from New York to San Francisco wo
 uld probably come out somewhere in the middle of the Amazon where there is in fact no route at all!"

ATOM RSS1 RSS2