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Phys. Rev. Lett. 89, 210401 (2002): Locality and Topology in the Molecular Aharonov-Boh... - 2 views

prl.aps.org/...e210401
shared by duncan barker on 01 Nov 10 - No Cached
  • Luzi Bergamin on 01 Nov 10
     
    If it's neither topological nor nonlocal, why on Earth is it then called Aharonov-Bohm effect?
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Information converted to energy - physicsworld.com - 4 views

physicsworld.com/...44385 phy information maxwell_demon
shared by pacome delva on 22 Nov 10 - No Cached
  • By tracking the particle's motion using a video camera and then using image-analysis software to identify when the particle had rotated against the field, the researchers were able to raise the metaphorical barrier behind it by inverting the field's phase. In this way they could gradually raise the potential of the particle even though they had not imparted any energy to it directly.
  • "Nobody thinks of using bits to boil water," he says, "but that would in principle be possible at nanometre scales." And he speculates that molecular processes occurring in nature might already be converting information to energy in some way. "The message is that processes taking place on the nanoscale are completely different from those we are familiar with, and that information is part of that picture."
  • pacome delva on 22 Nov 10
     
    crazy, the Maxwell's demon at work !
  • Nicholas Lan on 23 Nov 10
     
    crazy indeed
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Molecular circuits for associative learning in single-celled organisms - 0 views

journals.royalsociety.org/...81252g53k2310525 paper bio learning cell
shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    Unicellular organisms learn. How they do is written in the paper somewhere.
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Bioengineering to generate healthy skin - 1 views

www.sciencedaily.com/...111017075511.htm skin BIO science
shared by dejanpetkow on 18 Oct 11 - No Cached
  • That is, using a small biopsy from a specific patient, they can generate almost the entire cutaneous surface of that individual in the lab.
  • that it is possible to isolate epidermic stem cells from patients with different genetic skin diseases, cultivate them and, using molecular engineering as a first step, incorporate the therapeutic genes into each patient's genome to take the place of the one that the patient does not have or that functions abnormally. Afterwards, in the second step, the stem cells would be assembled into patches ready to be transplanted onto the patients.
  • "What we did in this case -- explains Marcela del Río -- was to transfer a normal SPINK-5 gene to a patient's stem cells and later use these cells to generate skin that could be transplanted to experimental models, such as mice."
  • dejanpetkow on 18 Oct 11
     
    Nice approach to generate healthy skin and to patch parts or to replace the overall human skin. Next step - clinical studies.
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Massively Parallel Computer Built From Single Layer of Molecules - Technology Review - 3 views

www.technologyreview.com/...27291 organic molecules parallel computing cellular_automata
shared by Luís F. Simões on 28 Oct 11 - No Cached
  • Japanese scientists have built a cellular automaton from individual molecules that carries out huge numbers of calculations in parallel
  • Ref: arxiv.org/abs/1110.5844: Massively Parallel Computing An An Organic Molecular Layer
  • Luís F. Simões on 28 Oct 11
     
    :) so Technology Review wrote the article now, based on an arXiv paper uploaded only now, but actually the paper was already published in Nature last year: http://dx.doi.org/10.1038/nphys1636
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Carbon nanotubes grow in combustion flames - 0 views

www.itbm.nagoya-u.ac.jp/...-grow-in-combustion-flames.php CNT nano
shared by Thijs Versloot on 02 Apr 14 - No Cached
  • Thijs Versloot on 02 Apr 14
     
    Quantum chemical simulations reveal an unprecedented relationship between the mechanism of carbon nanotube growth and hydrocarbon combustion processes. Results of these simulations illustrate the importance in the role of carbon chemical bonding and molecular transformations in CNT growth.
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Quantum entanglement at ambient conditions in a macroscopic solid-state spin ensemble - 1 views

advances.sciencemag.org/...e1501015 technology quantum entanglement
shared by Thijs Versloot on 25 Nov 15 - No Cached
  • Thijs Versloot on 25 Nov 15
     
    Quoted from one of the authors in a separate interview: "We know that the spin states of atomic nuclei associated with semiconductor defects have excellent quantum properties at room temperature," said Awschalom, Liew Family Professor in Molecular Engineering and a senior scientist at Argonne National Laboratory. "They are coherent, long-lived and controllable with photonics and electronics. Given these quantum 'pieces,' creating entangled quantum states seemed like an attainable goal." Bringing the quantum world to the macroscopic scale could see some interesting applications in sensors, or generally entanglement-enhanced applications.
  • jcunha on 26 Nov 15
     
    They were previously working on the same concept in N-V centers in diamond (as a semiconductor). Here the advantage is that SiC could in principle be integrated with Si or Ge. Anyway its all about controlling coherence. In the next 10 years some breakthroughs are expected in the field of semiconductor spintronics, but quantum computing in this way lies still in the horizon
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