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Latest Gating Stories

2014-02-20 12:08:38

Keep this in mind: Scientists say they've learned how your brain plucks information out of working memory when you decide to act. Say you're a busy mom trying to wrap up a work call now that you've arrived home. While you converse on your Bluetooth headset, one kid begs for an unspecified snack, another asks where his homework project has gone, and just then an urgent e-mail from your boss buzzes the phone in your purse. During the call's last few minutes these urgent requests — snack,...

2011-07-14 15:21:50

BK channels (large-conductance, Ca2+-dependent K+ channels) are essential for the regulation of important biological processes such as smooth muscle tone and neuronal excitability. New research shows that BK channel activation involves structural rearrangements formerly not understood. The study appears in the August 2011 issue of the Journal of General Physiology. Previous research pointed to a possible unified theory of activation gating in K+ channels, with the "activation gate" formed by...

2010-08-09 07:58:00

TEL AVIV, Israel, August 9, 2010 /PRNewswire/ -- A new study conducted in the department of Biochemistry and Molecular Biology at Tel Aviv University (TAU) elucidates the way in which toxic, yet essential, copper ions enter human cells. As a chemotherapy drug presumably enters the cells in a similar manner, the results of this study pave the way for the development of improved chemotherapeutic drugs. The groundbreaking work was published in the leading American scientific journal PNAS...

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2010-04-19 08:22:37

Conventional die castings can be made stronger using new, more environmentally friendly technologies developed by CSIRO. The two new technologies "“ a dynamic gating system and the "ËœATM runner system' "“ produce high-integrity castings with fine-grained microstructure and low porosity by improving the feed of molten metal into the casting. Both systems are suitable for use with aluminum and magnesium alloys. "This is accomplished by influencing the flow behavior of the...

2010-04-17 16:08:45

Conventional die castings can be made stronger using new, more environmentally friendly technologies developed by CSIRO The two new technologies "“ a dynamic gating system and the "ËœATM runner system' "“ produce high-integrity castings with fine-grained microstructure and low porosity by improving the feed of molten metal into the casting. Both systems are suitable for use with aluminium and magnesium alloys. "This is accomplished by influencing the flow behaviour of...

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2009-12-02 11:14:07

Before one of your muscles can twitch, before the thought telling it to flex can race down your nerve, a tiny floodgate of sorts"”called an ion channel"”must open in the surface of each cell in these organs to let in the chemical signals that spur the cell to action. New research at the National Institute of Standards and Technology (NIST) has allowed scientists to observe ion channels within the surface membrane for the first time, potentially offering insights for future drug...

2009-05-27 08:03:11

Hemichannels are connexin channels that can dock with each other to create a gap junction across two plasma membranes. In the June 2009 issue of the Journal of General Physiology (JGP), Andrew Harris (University of Medicine and Dentistry, New Jersey) discusses new research that provides insight into how hemichannels are kept closed and lays the framework for more specific questions regarding how they open in certain conditions as part of a junctional channel (1).As Harris explains, the gating...

2005-10-11 14:06:43

One of the biggest mysteries in molecular biology is exactly how ion channels "“ tiny protein pores through which molecules such as calcium and potassium flow in and out of cells "“ operate. Such channels can be extremely important; members of the voltage-gated ion channel family are crucial to generating electrical pulses in the brain and heart, carrying signals in nerves and muscles. When channel function goes awry, the resulting diseases "“ known as channelopathies,...


Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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