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Heme channel found
Dec 17, 2009 |
not rated yet |
0
In some ways a cell in your body or an organelle in that cell is like an ancient walled town. Life inside either depends critically on the intelligence of the gatekeepers.
Water droplets shape graphene nanostructures
Dec 17, 2009 |
4.6 / 5 (7) |
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A single-atom-thick sheet of carbon, like those seen in pencil marks -- offers great potential for new types of nanoscale devices, if a good way can be found to mold the material into desired shapes.
Scientist uncovers relics of ancient cosmos
Space & Earth / Space Exploration
Dec 14, 2009 |
4.5 / 5 (18) |
3
(PhysOrg.com) -- A University of Manchester scientist, working as part of an international team, has uncovered an unexpectedly rich trove of relicts from the ancient cosmos.
DNA needs a good editor: Researchers unravel the mysteries of DNA packaging
Dec 14, 2009 |
3 / 5 (4) |
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Imagine a huge spool of film containing thousands of sequences of random scenes. Without a talented editor, a screening would have no meaning.
Researchers identify a scaffold regulating protein disposal
Dec 11, 2009 |
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How does a cell manage to identify and degrade the diverse types of defective proteins and thus protect the body against serious diseases? The researchers Sabine C. Horn, Professor Thomas Sommer, Professor Udo Heinemann and ...
Drug kills cells through novel mechanism
Dec 10, 2009 |
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MIT and Boston University researchers have discovered that the drug hydroxyurea kills bacteria by inducing them to produce molecules toxic to themselves — a conclusion that raises the possibility of finding ...
Researchers discover a way to strengthen proteins
Dec 10, 2009 |
5 / 5 (2) |
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Proteins, which perform such vital roles in our bodies as building and maintaining tissues and regulating cellular processes, are a finicky lot. In order to work properly, they must be folded just so, yet many proteins readily ...
Researchers uncover chemical basis for extra 'quality control' in protein production
Dec 09, 2009 |
5 / 5 (1) |
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December 9, 2009 -Even small errors made by cells during protein production can have profound disease effects, and nature has developed ways to uncover these mistakes and correct them. Though in the case of one essential ...
A new target for lymphoma therapy
Dec 09, 2009 |
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Researchers at the Program in Cellular and Molecular Medicine and the Immune Disease Institute at Children's Hospital Boston (PCMM/IDI) have found a link between a common mutation that can lead to cancer and ...
Gene Hijacked By HIV Ancestor Suggests New Way to Block Viral Reproduction
Dec 07, 2009 |
4.9 / 5 (7) |
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(PhysOrg.com) -- An ancestor of the AIDS virus hijacked an entire gene, perhaps from some prehistoric cat it had infected, a gene that makes it much better able to infect humans, according to a study published ...
Scientists discover aggression-promoting pheromone in flies (w/ Video)
Dec 06, 2009 |
4 / 5 (10) |
1
Have you ever found yourself struggling to get your order taken at a crowded bar or lunch counter, only to walk away in disgust as more aggressive customers elbow their way to the front? It turns out that ...
Study Unravels Detail of 'Most Important' Cellular Signal
Dec 03, 2009 |
5 / 5 (2) |
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(PhysOrg.com) -- A new study provides crucial details that promise to help researchers better understand, and perhaps fine-tune with drugs, one of the most important signaling mechanisms in human cells, according to a study ...
Researchers demonstrate a better way for computers to 'see' (w/ Video)
Technology / Computer Sciences
Dec 02, 2009 |
4.7 / 5 (17) |
4
Taking inspiration from genetic screening techniques, researchers from Harvard and MIT have demonstrated a way to build better artificial visual systems with the help of low-cost, high-performance gaming hardware.
All decked out: Networks of chitin filaments are integral components of diatom silica shells
Dec 01, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- A whole microcosm of various bizarrely shaped life forms opens up when you look at diatoms, the primary component of ocean plankton, under a microscope. The regularly structured silica shells of these tiny ...
Bacterial gut symbionts are tightly linked with the evolution of herbivory in ants
Dec 01, 2009 |
5 / 5 (1) |
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Broadly speaking, ants have two different feeding strategies. A large proportion of all species are "carnivorous," meaning that they are generalist predators feeding on other small animals or scavenging on ...
