A simple cut to the skin unleashes a complex cascade of chemistry to stem the flow of blood. Now, scientists at Washington University School of Medicine in St. Louis have used evolutionary clues to reveal how a key clotting ...
Biochemistry
Jul 20, 2011
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Scientists today reported that the tiny light-sensing cells known as rods have been clearly and directly imaged in the living eye for the first time. Using adaptive optics (AO), the same technology astronomers use to study ...
Optics & Photonics
Jun 8, 2011
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As they age many materials exhibit changes in their properties. Although such phenomena crop up in many domains, the underlying processes are oftentimes not fully understood. Particularly interesting in this context are polymer ...
Polymers
Mar 1, 2011
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Scientists at Albert Einstein College of Medicine of Yeshiva University have made an unexpected finding about the method by which certain genes are activated. Contrary to what researchers have traditionally assumed, genes ...
Cell & Microbiology
Dec 5, 2010
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(PhysOrg.com) -- Unless you are in a field of study related to cell biology, you most likely have never heard of Ndc80. Yet this protein complex is essential to mitosis, the process by which a living cell separates its chromosomes ...
Cell & Microbiology
Oct 14, 2010
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Researchers in Singapore are reporting this week that they have gleaned key insights into the architecture of a protein that controls iron levels in almost all organisms. Their study culminated in one of the first successful ...
Biochemistry
Apr 9, 2010
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Contrary to prevailing wisdom, a new study from plant biologists at UC Davis shows that proteins of the Hsp70 family do indeed chaperone proteins across the membranes of chloroplasts, just as they do for other cellular structures.
Cell & Microbiology
Jan 26, 2010
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(PhysOrg.com) -- Much like a tightly wound drum, red blood cells are in perpetual vibration. Those vibrations help the cells maintain their characteristic flattened oval or disc shape, which is critical to their ability to ...
Biochemistry
Dec 21, 2009
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(PhysOrg.com) -- Biologists led by associate professor Thomas Schwartz (MIT) have worked out a rudimentary architectural plan for the nuclear pore complex (NPC), the gatekeeper of the cell's nucleus.
Cell & Microbiology
Oct 27, 2009
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(PhysOrg.com) -- The NPC is the only way in or out of a cell's nucleus. It plays a key role in cellular metabolism and signaling, and any malfunction in these pores can have lethal consequences. Now new research reveals further ...
Cell & Microbiology
Sep 29, 2009
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