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Evans T. Boney
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- is following 2 new articles in Information Theory, Shannon EntropyOn the relationship between densities of Shannon entropy and Fisher information for atoms and molecules. Liu Shubin (2007) J. Chem. Phys..Entropy and the Central Limit Theorem. Barron Andrew R. (1986) Ann. Probab..June 16, 2010Login or register to post comments
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Nothing has captivated my interest in the past year like Tegmark's idea that humans are "Self Aware Substructures" of an entirely mathematical universe. In this paper, he offers a more than semantic (albeit less than constructive) proof that the realization of Mathematically Reproducible External Reality implies a mathematical regularity of the very fabric of the universe... and thus our place in that many-dimensional reality.
I couldn't get the CPS Seminar folks to host Tegmark, but if any astronomers are looking at this, please nominate him.
The Mathematical Universe. Tegmark Max (2008) Found Phys. - is following 3 new articles in Fun Physics FactsDoes the universe in fact contain almost no information?. Tegmark Max (1996) Found Phys Lett.The Mathematical Universe. Tegmark Max (2008) Found Phys.Many lives in many worlds. Tegmark M (2007) Nature.June 16, 2010Login or register to post comments
- is following 1 new article in Neuroscience is crazyIndispensable role of quantum theory in the brain dynamics. Kurita Y (2005) Biosystems.June 16, 2010Login or register to post comments
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Like whoa.
A Species of Reef Fish that Uses Ultraviolet Patterns for Covert Face Recognition. Siebeck Ulrike E. (2010) Current Biology. - is following 1 new article in EvolutionA Species of Reef Fish that Uses Ultraviolet Patterns for Covert Face Recognition. Siebeck Ulrike E. (2010) Current Biology.March 9, 2010Login or register to post comments
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How about this! Taking advantage of the weird electron structures of hydrocarbons to create superconductors.
Superconductivity in alkali-metal-doped picene. Mitsuhashi Ryoji (2010) Nature. - is following 1 new article in Fun Physics FactsSuperconductivity in alkali-metal-doped picene. Mitsuhashi Ryoji (2010) Nature.March 9, 2010Login or register to post comments
- is following 1 new article in EvolutionBacteriophages encode factors required for protection in a symbiotic mutualism. Oliver KM (2009) Science.January 26, 2010Login or register to post comments
- is following 1 new article in The Life Scientists: Suggested for DiscussionEvolution in Health and Medicine Sackler Colloquium: Natural selection in a contemporary human population. Byars SG (2009) Proc Natl Acad Sci U S A.Login or register to post commentsFYI, I've got a first draft of a response to this, let me know if you'd like to give it an edit (preferably someone who has used genetic game theory previously) - Evans T. Boney (Caltech) December 18, 2009 Comment deletedI am not familiar with genetic game theory, but I'm happy to take a look. - John M. Delacruz (Caltech) December 18, 2009 Comment deleted
- joined the The Life Scientists journal club.December 17, 2009
- created an event in Chemical Physics SeminarsLogin or register to post commentsTuesday, December 1, 2009 - 4:00pm at Noyes 147
"Quantum Dynamics at Conical Intersections"
-Dr. Stuart Althorpe, Reader in Theoretical Chemistry, Cambridge UniversityHe lists two papers on the front page of his website that are probably
appropriate based on the title ( http://www-stuart.ch.cam.ac.uk/ ):
· The first evidence of time-delayed mechanisms in direct
reactions. Nature, 416, 67 (2002).· A quantum topological effect caused by looping around a
conical intersection. Science, 309, 1227 (2005) - created an event in Chemical Physics SeminarsLogin or register to post commentsTuesday, November 17, 2009 - 4:00pm at Noyes 147
Gas-phase Ion/Ion Reactions: Proton Transfer, Electron Transfer, and Bio-conjugation
Electron Transfer versus Proton Transfer in Gas-Phase Ion/Ion Reactions of Polyprotonated Peptides. Gunawardena Harsha P. (2005) J. Am. Chem. Soc..Simultaneous Transmission Mode Collision-Induced Dissociation and Ion/Ion Reactions for Top-Down Protein Identification/Characterization Using a Quadrupole/Time-of-Flight Tandem Mass Spectrometer. Liu Jian (2009) Anal. Chem.. - created an event in Chemical Physics SeminarsTuesday, November 3, 2009 - 3:45pm at Noyes 147
CHEMICAL PHYSICS SEMINAR
4:00 PM - 5:00 PM - 147 Noyes, Sturdivant Lecture Hall"The Liquid Vapor Interface of Aqueous Solutions: Composition,
Chemistry, and Acid/Base Properties," John C. Hemminger, professor of
chemistry, UC Irvine.Electron Spectroscopy of Aqueous Solution Interfaces Reveals Surface Enhancement of Halides. Ghosal S. (2005) Science.Determination of surface OH acidity from the formation of acid/base complexes on ultrathin films of γ-Al2O3 on NiAl(100). Layman K (2004) Journal of Catalysis.Login or register to post commentsIn this talk, by Prof. Hemminger from Irvine, we learned about his methods for investigating the acidity of liquid vapor interfaces. Essentially, by varying the energy of incoming X-rays, they can vary the probe depth. As such, they can achieve depth-dependent measurements of different nuclei. So, for simple acids, the amount of the anion or cation in a given layer is reflected by the concentration of that nucleus at a given probe depth (Science Paper just added) . Prof. Hemminger reported results from KCl, NaCl, and other alkali-halides, where his technique is particularly valuable (as a 1:1 ratio represents neutrality of a given layer). His investigations into alkali halides indicates a dominance for anions over cations at the surface. This is in contrast with some water ... more - Evans T. Boney (Caltech) November 9, 2009 Comment deleted - is following 1 new article in Neuroscience is crazyBayesian reconstruction of natural images from human brain activity. Naselaris T (2009) Neuron.November 3, 2009Login or register to post comments
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In case I ever need to change the polarization of light of a broad-spectrum... check out this shrimp's eyes.
A biological quarter-wave retarder with excellent achromaticity in the visible wavelength region. Roberts N. W. (2009) Nature Photon. - is following 2 new articles in Fun Physics FactsFundamental Limit on the Rate of Quantum Dynamics: The Unified Bound Is Tight. Levitin Lev B. (2009) Phys. Rev. Lett..A biological quarter-wave retarder with excellent achromaticity in the visible wavelength region. Roberts N. W. (2009) Nature Photon.October 30, 2009Login or register to post comments
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80 years until Moore's law dies. Alternatively... it may be possible that I will see computers reach their ultimate speed limit during my lifetime. Ridiculous.
Fundamental Limit on the Rate of Quantum Dynamics: The Unified Bound Is Tight. Levitin Lev B. (2009) Phys. Rev. Lett.. - Login or register to post comments
Wow. I'm curious what people think of this analysis (I think it's pretty cool!). Also, specifically about their conclusion:
"Compared to the DFT orbitals, both the HOMO and LUMO electron densities obtained from photoemission
are more weighted around the center of the molecule, a distinction we tentatively attribute
to the interaction with the Cu surface."Seems like an opportunity to apply some modern surface calculations, such as QTAIM, which explicitly incorporate directed bond contributions and diffuse orbitals.
Reconstruction of molecular orbital densities from photoemission data. Puschnig P (2009) Science. - is following 1 new article in Chemical Physics Seminars: Suggested Papers For DiscussionReconstruction of molecular orbital densities from photoemission data. Puschnig P (2009) Science.October 30, 2009Login or register to post comments
- is following 1 new article in Computation vs. ExperimentReconstruction of molecular orbital densities from photoemission data. Puschnig P (2009) Science.October 30, 2009Login or register to post comments
- is following 1 new article in Free WillPatterns of neural activity associated with honest and dishonest moral decisions. Greene JD (2009) Proc Natl Acad Sci U S A.October 30, 2009Login or register to post comments
- is following 1 new article in EvolutionEvolution in Health and Medicine Sackler Colloquium: Natural selection in a contemporary human population. Byars SG (2009) Proc Natl Acad Sci U S A.October 30, 2009Login or register to post comments
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This article strikes me as fishy. Granted, that's because I am hopeful we humans will overcome evolutionary pressure entirely and become able to modify our children's genes Lamarck style... but biologists, is this good science?
"We had three general aims: first, to correct the still widespread misconception that natural
selection is not operating on contemporary humans;"Is that concaminant with unbiased research? Shouldn't they have investigated whether or not natural selection still works on humans? Obviously as a skeptic of their result I am myself biased... but this seems like they went fishing in a bunch of data for a PNAS paper, and made sure to hook it.
Also, more specifically... are graphs like figur ... read more
Evolution in Health and Medicine Sackler Colloquium: Natural selection in a contemporary human population. Byars SG (2009) Proc Natl Acad Sci U S A. - Login or register to post comments
Grace Hypothesis. Nice wording... But it doesn't avoid the troubling conclusion that, in part at least, the idea of jails is a waste of resources. Oops... Now I can't ever get elected to any office, but what can I say... The science doesn't support the Will Hypothesis.
Patterns of neural activity associated with honest and dishonest moral decisions. Greene JD (2009) Proc Natl Acad Sci U S A. - created an event in Chemical Physics SeminarsLogin or register to post commentsTuesday, October 27, 2009 - 4:00pm at Noyes 147
"Ultrafast Chemical Dynamics with X-Ray High Order Harmonics: Toward the
Attosecond Time Limit," Stephen R. Leone, professor of chemistry and
physics, and director, Chemical Dynamics Beamline, UC Berkeley and
Lawrence Berkeley National Laboratory.Measurement and optimization of isolated attosecond pulse contrast. Pfeifer Thomas (2009) Opt. Lett..Ultrafast strong-field dissociative ionization dynamics of CH[sub 2]Br[sub 2] probed by femtosecond soft x-ray transient absorption spectroscopy. Loh Zhi-Heng (2008) J. Chem. Phys.. - created an event in Chemical Physics SeminarsLogin or register to post commentsTuesday, October 13, 2009 - 4:00pm at Noyes 147
Prof. Clifford R. Bowers: Exploring molecular wheel nanotubes inside and out: a xenon atom's view
Observation of Single-File Diffusion in Dipeptide Nanotubes by Continuous-Flow Hyperpolarized Xenon-129 NMR Spectroscopy. Cheng Chi-Yuan (2007) ChemPhysChem.Direct Observation of Atoms Entering and Exiting l -Alanyl- l -valine Nanotubes by Hyperpolarized Xenon-129 NMR. Cheng Chi-Yuan (2007) J. Am. Chem. Soc.. - created an event in Chemical Physics SeminarsLogin or register to post commentsTuesday, October 6, 2009 - 4:00pm at Noyes 147
Prof. Troy Van Voorhis is visiting from MIT
Extracting electron transfer coupling elements from constrained density functional theory. Wu Qin (2006) J. Chem. Phys.. - Login or register to post comments
Another recent well cited paper.
Accurate magnetic exchange couplings in transition-metal complexes from constrained density-functional theory. Rudra Indranil (2006) J. Chem. Phys.. - Login or register to post comments
One of Troy's recent highly cited papers.
Extrafluorescent electroluminescence in organic light-emitting devices. Segal M. (2007) Nat Mater.