Every cell in the human body contains the same genetic instructions, encoded in its DNA. However, out of about 30,000 genes, each cell expresses only those genes that it needs to become a nerve cell, immune cell, or any of ...
Cell & Microbiology
Nov 16, 2023
0
101
BESSY II's high-brilliance X-rays can be used to produce microscopic images with spatial resolution down to a few tens of nanometers. Whole cell volumes can be examined without the need for complex sample preparation as in ...
Cell & Microbiology
Jul 18, 2023
0
82
(PhysOrg.com) -- Researchers have discovered a way to capture and harness energy transmitted by such sources as radio and television transmitters, cell phone networks and satellite communications systems. By scavenging this ...
Engineering
Jul 7, 2011
14
1
"Wireless communication is a one-way street. Over." Radio traffic can flow in only one direction at a time on a specific frequency, hence the frequent use of "over" by pilots and air traffic controllers, walkie-talkie users ...
Engineering
Feb 14, 2011
16
0
(PhysOrg.com) -- Ji-Dong Yim and Chris Shaw, scientists in Simon Fraser University's School of Interactive Arts and Technology (SIAT), are the proud parents of a robotic cell phone family that can walk, dance and express ...
Robotics
May 4, 2010
3
0
(Phys.org) —Fluorescence imaging is the most widely used method for analyzing the molecular composition of biological specimens. Target molecules, when they are present, can be "tagged" with a fluorescent label and made ...
Optics & Photonics
Sep 27, 2013
0
0
A radical new approach to the design of communications networks, called "network coding," promises to make Internet file sharing faster, streaming video more reliable, and cell-phone reception better -- among other improvements.
Computer Sciences
Feb 9, 2010
6
0
In regenerative medicine, the ideal repair material would offer properties that seem impossibly contradictory. It must be rigid and robust enough to be manipulated surgically, yet soft and porous enough to allow healing cells ...
Polymers
Jan 27, 2017
0
32
As sensors that do things like detect touch and motion in cell phones get smaller, cheaper and more reliable, computer manufacturers are beginning to take seriously the decade-old idea of "smart dust" -- networks of tiny ...
Computer Sciences
Jan 11, 2011
0
0
(AP) -- A computer security researcher has built a device for just $1,500 that can intercept some kinds of cell phone calls and record everything that's said.
Software
Aug 1, 2010
2
0
