News tagged with complex
A RANK insider resolving the enigma of the fever chart
12 hours ago |
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Mammals have evolved a complex system for controlling bone remodeling. Babies require calcium for healthy bones and they obtain it from their mother's milk. Nursing mothers release calcium from their bones. Surprisingly, ...
Researchers develop virtual streams to help restore real ones
Nov 24, 2009 |
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Researchers at the University of Minnesota have developed a unique new computer model called the Virtual StreamLab, designed to help restore real streams to a healthier state. The Virtual StreamLab, which demonstrates the ...
Researchers Find Innate Correlations Among Different Power Law Phenomena
Nov 17, 2009 |
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(PhysOrg.com) -- Studying the patterns that emerge in natural and social phenomena is a popular area of research, although usually individual phenomena are studied separately from each other. In a recent study, ...
There's no business like Grid business (w/ Video)
Technology / Computer Sciences
Nov 17, 2009 |
3 / 5 (1) |
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(PhysOrg.com) -- Scientists have embraced the Grid, but businesses have held back, concerned about complexity and security. Now a European research team has built a platform opening the Grid's vast resources ...
More pain means real gain in complex regional pain syndrome treatment
Nov 12, 2009 |
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The saying "more pain, more gain" may be true for those already in terrible pain due to a chronic and debilitating condition, contrary to received wisdom. For those with Type I Complex Regional Pain Syndrome (CRPS), working ...
Compressing photonic signals for greater bandwidth
Nov 03, 2009 |
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Cornell researchers have developed an ingenious method to time-compress optical signals. The process could enable optical communication systems to carry many more bits per second or could also be used to generate ...
Biologists reveal structure of cell nucleus 'gatekeeper'
Oct 27, 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.
Scientists bend nanowires into 2-D and 3-D structures
Oct 21, 2009 |
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(PhysOrg.com) -- Taking nanomaterials to a new level of structural complexity, scientists have determined how to introduce kinks into arrow-straight nanowires, transforming them into zigzagging two- and three-dimensional ...
High-speed genetic analysis looks deep inside primate immune system
Oct 12, 2009 |
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(PhysOrg.com) -- Viruses such as HIV and influenza take safe harbor in cells, where they cannot be recognized directly by the immune system. The immune response relies on infected cells announcing the presence of the virus ...
Come on in: Nuclear barrier less restrictive than expected in new cells
Oct 06, 2009 |
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When it comes to the two basic types of cells, prokaryotes and eukaryotes, compartmentalization is everything. Prokaryotes are evolutionarily ancient cells that only have a membrane surrounding their outer boundary, while ...
'Promiscuous' protein interactions found in the nuclear pore complex
Sep 29, 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 ...
Researchers unravel brain's wiring to understand memory
Medicine & Health / Neuroscience
Sep 28, 2009 |
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Using a powerful microscope, Karel Svoboda, a brain scientist at the Janelia Farm Research Campus in Ashburn, Va., peers through a plastic window in the top of a mouse's head to watch its brain's neurons sprout new connections ...
How Did Evolution Begin?
Sep 28, 2009 |
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(PhysOrg.com) -- Life's ability to replicate itself is essential for evolution, yet even the simplest kind of replication requires a relatively complex system. So what kind of non-replicating system might ...
International scientists set boundaries for survival
Sep 23, 2009 |
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Human activities have already pushed the Earth system beyond three of the planet's biophysical thresholds, with consequences that are detrimental or even catastrophic for large parts of the world; six others ...
Echoes of phlogiston in stem cell biology
Sep 21, 2009 |
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Before it was learned that matter burns by taking up oxygen, most chemists sought to explain combustion as the release of a mysterious substance, which they named "phlogiston". Phlogiston theory was a conceptual breakthrough ...
