Browsing FAS Scholarly Articles by Title
Now showing items 9971-9990 of 18292
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Microscopic origin of the Bekenstein-Hawking entropy
(Elsevier, 1996)The Bekenstein-Hawking area-entropy relation S-BH = A/4 is derived for a class of five-dimensional extremal black holes in string theory by counting the degeneracy of BPS soliton bound states. -
Microscopic Realization of the Kerr/CFT Correspondence
(American Physical Society, 2011)Supersymmetric M/string compactifications to five dimensions contain BPS black string solutions with magnetic graviphoton charge \(P\) and near-horizon geometries which are quotients of \(AdS 3 \times S^2\). The holographic ... -
Microscopic Structure of the Wetting Film at the Surface of Liquid Ga-Bi Alloys
(American Physical Society, 2000)X-ray reflectivity measurements of the binary liquid Ga-Bi alloy reveal a dramatically different surface structure above and below the monotectic temperature Tmono = 222°C. A Gibbs-adsorbed Bi monolayer resides at the ... -
Microscopic Surface Structure of Liquid Alkali Metals
(American Physical Society, 2000)We report an x-ray scattering study of the microscopic structure of the surface of a liquid alkali metal. The bulk liquid structure factor of the eutectic K67Na33 alloy is characteristic of an ideal mixture, and so shares ... -
Microscopic Theory of Resonant Soft-X-Ray Scattering in Materials with Charge Order: The Example of Charge Stripes in High-Temperature Cuprate Superconductors
(American Physical Society (APS), 2013)We present a microscopic theory of resonant soft-x-ray scattering that accounts for the delocalized character of valence electrons. Unlike past approaches based on local form factors, our functional determinant method ... -
Microsporidia are Natural Intracellular Parasites of the Nematode Caenorhabditis Elegans
(Public Library of Science, 2008)For decades the soil nematode Caenorhabditis elegans has been an important model system for biology, but little is known about its natural ecology. Recently, C. elegans has become the focus of studies of innate immunity ... -
Microstructural evolution induced by micro-cracking during fast lithiation of single-crystalline silicon
(Elsevier BV, 2014)We report observations of microstructural changes in {100} and {110} oriented silicon wafers during initial lithiation under relatively high current densities. Evolution of the microstructure during lithiation was found ... -
Microstructures amplify carotenoid plumage signals in colorful tanagers
(Cold Spring Harbor Laboratory, 2019-10-10)Red, orange, and yellow carotenoid-colored plumages have been considered honest signals of condition. We comprehensively quantified carotenoid signals in the social, sexually-dimorphic tanager genus Ramphocelus using ... -
Microstructures in Metasedimentary Rocks from the Neoproterozoic Bonahaven Formation, Scotland: Microconcretions, Impact Spherules, or Microfossils?
(Elsevier BV, 2013)Microscopic spherules in relatively undeformed mudstones of the Neoproterozoic Bonahaven Formation, Islay, Scotland, are differentiated from their matrix by a sharp micron-scale, smoothly rounded boundary. These elongate ... -
Microtubule sliding activity of a kinesin-8 promotes spindle assembly and spindle length control
(2013)Molecular motors play critical roles in the formation of mitotic spindles, either through controlling the stability of individual microtubules, or by cross-linking and sliding microtubule arrays. Kinesin-8 motors are best ... -
Microtubules can bear enhanced compressive loads in living cells because of lateral reinforcement
(Springer Verlag, 2006) -
Microvariations in Harmony and Value-Relativized Parametrization
(John Benjamins Publishing, 2005)This paper explores a parametric delimitation of the space of possible harmony patterns with respect to the class of feature-values that are visible. Extending the framework of Calabrese (1995), the proposal is that ... -
Microwave Background Anisotropies Due to the Kinematic Sunyaev-Zeldovich Effect of the Lyα Forest
(American Astronomical Society, 1996)The Ly alpha absorption systems observed in the spectra of QSOs are likely to possess bulk peculiar velocities. The free electrons in these systems scatter the microwave background and distort its spectrum through the ... -
Microwave Boson Sampling.
The first post-classical computation will most probably be performed not on a universal quantum computer, but rather on a dedicated quantum hardware. A strong candidate for achieving this is represented by the task of ... -
Microwave Dielectric Heating of Drops in Microfluidic Devices
(Royal Society of Chemistry, 2009)We present a technique to locally and rapidly heat water drops in microfluidic devices with microwave dielectric heating. Water absorbs microwave power more efficiently than polymers, glass, and oils due to its permanent ... -
Microwave dielectric heating of non-aqueous droplets in a microfluidic device for nanoparticle synthesis
(Royal Society of Chemistry (RSC), 2013)We describe a microfluidic device with an integrated microwave heater specifically designed to dielectrically heat non-aqueous droplets using time-varying electrical fields with the frequency range between 700 and 900 MHz. ... -
Microwave emission from aligned dust
(Elsevier BV, 2003)Polarized microwave emission from dust is an important foreground that may contaminate polarized CMB studies unless carefully accounted for. We discuss potential difficulties associated with this foreground, namely, the ... -
Microwave Interstellar Medium Emission in the Green Bank Galactic Plane Survey: Evidence for Spinning Dust
(IOP Publishing, 2004)We observe significant dust-correlated emission outside of H II regions in the Green Bank Galactic Plane Survey (-4° < b < 4°) at 8.35 and 14.35 GHz. The rising spectral slope rules out synchrotron and free-free emission ... -
Microwave Interstellar Medium Emission Observed by theWilkinson Microwave Anisotropy Probe
(IOP Publishing, 2004)We investigate the nature of the diffuse Galactic emission in the Wilkinson Microwave Anisotropy Probe (WMAP) temperature anisotropy data. Substantial dust-correlated emission is observed at all WMAP frequencies, far ... -
Microwave-induced zero-resistance states are not necessarily static
(American Physical Society, 2009)We study the effect of inhomogeneities in Hall conductivity on the nature of the zero resistance states seen in the microwave irradiated two-dimensional electron systems in weak perpendicular magnetic fields and show that ...