Signal Transduction Current Events | Signal Transduction News | 8
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Funnel in the eye: Signal focusing increases photosensitivity
In poor light the eyes of mice react like some digital cameras: they reduce their resolution while at the same time increasing their sensitivity. Specialists in the retina focus the information of several light sensor cells for this purpose. view more (2006-11-03)
Researchers create a broadband light amplifier on a chip
Cornell researchers have created a broadband light amplifier on a silicon chip, a major breakthrough in the quest to create photonic microchips. In such microchips, beams of light traveling through microscopic waveguides will replace electric currents traveling through microscopic wires. view more (2006-07-07)
Rice psychologist explores perception of fear in human sweat
When threatened, many animals release chemicals as a warning signal to members of their own species, who in turn react to the signals and take action. Research by Rice University psychologist Denise Chen suggests a similar phenomenon occurs in humans. view more (2009-03-09)
Earth's magnetic field really did reverse itself
NWO researchers have developed an improved method of identifying the magnetic signals in old geological strata. The researchers used the new method to show that the earth's magnetic field really did reverse itself ten million years ago. Particles of iron in sediments orient themselves in accordance with the local magnetic field of the earth. As... view more... (2001-11-27)
Study sheds light on signaling mechanism in stem cells, cancer
UCSF scientists have illuminated a key step in a signaling pathway that helps orchestrate embryonic development. view more (2005-10-26)
A new study of living cells could revolutionize the way we test drugs
Researchers have made a breakthrough by detecting the electrical equivalent of a living cell's last gasp. The work takes them a step closer to both seeing the 'heartbeat' of a living cell and a new way to test drugs. view more (2007-04-12)
Insulin sensitizer also serves as energy-conserving signal to the brain
A fat-derived protein known for its effects on the liver and skeletal muscle might also serve as an energy-conserving signal to the brain during periods of starvation. view more (2007-07-11)
Spreading high-speed Internet to rural areas
To cut the cost of bringing high-speed Internet to rural areas, Dr. Ka Lun Lee and colleagues at the University of Melbourne and NEC Australia in the state of Victoria are experimenting with a way to boost the reach of existing technology. view more (2009-03-17)
Stress signals link pre-existing sickness with susceptibility to bacterial infection
Mitochondrial diseases disrupt the power generating machinery within cells and increase a person's susceptibility to bacterial infection, particularly in the lungs or respiratory tract. view more (2009-07-28)
Reining in cancer - first laboratory study to show that combining novel targeted therapiesmay keep cancer cells under control
A team of Italian researchers has demonstrated in the laboratory for the first time that combining two of the newest anti-cancer targeted agents may produce a powerful new combination against breast cancer - and possibly many other cancers as well. Their findings are reported (Thursday 24 January) in the journal Annals of Oncology.* They found... view more... (2002-01-21)
Designed peptides: Candidates for the treatment of cancer, sexual dysfunction, eating disorders
Chemists at the University of Arizona have developed modified versions of naturally occurring peptide hormones that could be key to novel treatments of a variety of diseases, including eating disorders (anorexia, obesity), diabetes, sexual dysfunction and skin cancer. view more (2005-09-01)
Streamlining brain signals for speed and efficacy
Life exists at the edge of chaos, where small changes can have striking and unanticipated effects, and major stimuli may go unheard. view more (2008-10-23)
The role of fat as a signal substance
Fat is not only a much-discussed food substance. Fat can also function as a signal substance in the body and activate a special receptor in the cells of important organs like the heart and liver. This opens opportunities for new ways of explaining the genesis of diabetes, a disease that is strongly associated with obesity. This new role for fat... view more... (2003-02-10)
Carnegie Mellon scientists show brain uses optimal code for sound
Scientists at Carnegie Mellon University have discovered that our ears use the most efficient way to process the sounds we hear, from babbling brooks to wailing babies. view more (2006-02-24)
Inflammation may play role in metastasis of prostate cancer
Many would assume that "mounting an immune response" or "having your body fight the cancer" is a good thing. Now, research at the University of California, San Diego (UCSD) School of Medicine strongly suggests that inflammation associated with the progression of tumors actually plays a key role in the metastasis of prostate... view more... (2007-03-19)
Nano-signals get a boost from magnetic spin waves
Researchers have figured out how nanoscale microwave transmitters gain greater signal power than the sum of their parts-a finding that will help in the design of nano-oscillator arrays for possible use as transmitters and receivers in cell phones, radar systems, or computer chips. view more (2006-09-01)
Scientists Await First Call From Beagle
Early this morning, the Beagle 2 spacecraft landed on the surface of Mars at the end of a 250 million mile (400 million km), six-month trek to the Red Planet. Although the first attempt to use NASA's Mars Odyssey orbiter to communicate with the lander three hours later was unsuccessful, scientists and engineers are still awaiting the best... view more... (2003-12-25)
Scientists Detect Lowest Frequency Radar Echo From the Moon
A team of scientists from the Naval Research Laboratory, the Air Force Research Laboratory's (AFRL's) Research Vehicles Directorate, Kirtland Air Force Base, N.M., and the University of New Mexico (UNM) has detected the lowest frequency radar echo from the moon ever seen with earth-based receivers. view more (2008-01-09)
Laser Goes Tubing for Faster Body-Fluid Tests
University of Rochester researchers announce in the current issue of Applied Optics a technique that in 60 seconds or less measures multiple chemicals in body fluids, using a laser, white light, and a reflective tube. view more (2007-04-03)
Malicious at the Push of a Button
"Molecular switch" turns food bacteria into dangerous germ view more (2005-03-08)
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