Search results for author:(Stuart Mason Dambrot)

Quantum Physics Feb 27, 2013

On a clear day: Noise-induced quantum coherence increases photosynthetic yield

(Phys.org)—The presence of quantum coherence in photosynthesis in plants, bacteria and marine algae at ambient temperatures is well-established. Two such effects that appeared to be unrelated – enhanced solar cell efficiency ...

Mathematics Feb 21, 2013

To dial, perchance to group: Statistical analysis reveals clustered telephony patterns

(Phys.org)—Whether cellular calls, texting, instant messaging, there's more to communications than content: every exchange leaves behind an electronic trace that can be measured and studied. Recently, researchers led by Prof. ...

Quantum Physics Jan 29, 2013

Of Einstein and entanglement: Quantum erasure deconstructs wave-particle duality

(Phys.org)—Quantum physics presents several counterintuitive features, including entanglement, tunneling and – as demonstrated in double-slit experiments – wave-particle duality. When studying wave-particle duality, however, ...

Quantum Physics Jan 23, 2013

Never mind the noise: Quantum entanglement allows channel information rate to exceed Shannon zero-error capacity

(Phys.org)—As developed by Claude Shannon, information theory defines channel capacity as the maximum rate at which information can be sent through the channel. This capacity can be mathematically described using a graph ...

Earth Sciences Dec 19, 2012

It's elemental: Accurate analysis of Earth's core with molecular dynamics simulation

(Phys.org)—Accurately determining the relative percentages of the elements comprising the Earth's core and mantle which formed early – that is, within 30 Ma (megaannum, or million years) after the solar system itself formed ...

Plants & Animals Dec 18, 2012

All together now: Single rule accounts for diverse decision systems in animal collectives

(Phys.org)—Ethologists – those who study animal behavior under natural conditions – have long recognized that groups of various species, or animal collectives, use a variety of decision-making systems. For example, some species ...

Evolution Dec 14, 2012

The more things change: Trait variance provides evidence of pervasive mosaic evolution

(Phys.org)—Despite evidence that phenotypic change does not always occur uniformly across all species members and lineages, single size or shape traits are often used to represent species-level change in its entirety. Recently, ...

Cell & Microbiology Dec 13, 2012

Microbial Munificence: Iron acquisition strategies in natural bacterioplankton populations

(Phys.org)—Of the many microbes that – like almost all life – require iron, some live in iron-limited environments. What to do? Secrete siderophores, of course: small, high-affinity iron chelating compounds that scavenge ...

Cell & Microbiology Dec 3, 2012

It's complicated: Hidden protein folding complexity revealed by simple Markov state models

(Phys.org)—Complex systems often exhibit metastable dynamical behavior – that is, the systems appears to be in an equilibrium state but are actually confined to part of the phase space, while at much longer time scales transition ...

Biochemistry Nov 13, 2012

The road also taken: Alternative and hidden pathways in biological electron transfer

(Phys.org)—Photosynthesis, cellular respiration and many other biological processes have something in common: long-range electron transfer (ET), the simplest known chemical reaction that is known to occur efficiently high ...

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