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RKKY Interaction in Graphene from Lattice Green's Function
(arXiv, 2010)
We study the exchange interaction $J$ between two magnetic impurities in graphene (the RKKY interaction) by directly computing the lattice Green's function for the tight-binding band structure for the honeycomb lattice. ...
The Dust Ring of Luminous Blue Variable Candidate HD 168625: Infrared Observations and Model Calculations
(Institute of Physics, 2003)
We present a 2.218 lm image from the Hubble Space Telescope/Near Infrared Camera and Multi-Object Spectrometer (NICMOS) and a 55 lm image from ISOPHOT of the dust ring surrounding the luminous blue variable (LBV) candidate ...
Exposure to a Low Dose of Bisphenol A during Fetal Life or in Adulthood Alters Maternal Behavior in Mice
(National Institute of Environmental Health SciencesEnvironmental Health Perspectives, 2002)
Maternal behavior in mammals is the result of a complex interaction between the lactating dam
and her developing offspring. Slight perturbations of any of the components of the mother-infant interaction may result in ...
Response properties of III-V dilute magnetic semiconductors: interplay of disorder, dynamical electron-electron interactions and band-structure effects
(arXiv, 2011)
A theory of the electronic response in spin and charge disordered media is developed with the particular aim to describe III-V dilute magnetic semiconductors like GaMnAs. The theory combines a detailed k.p description of ...
Localized diffusive motion on two different time scales in solid alkane nanoparticles
(Institute of Physics, 2010)
High-energy-resolution quasielastic neutron scattering on three complementary spectrometers has been used to investigate molecular diffusive motion in solid nano- to bulk-sized particles of the alkane n-C32H66. The ...
Molecular Hydrogen in the Ring Nebula: Clumpy Photodissociation Regions
(University of Chicago Press, 2003)
We present a 0 .65 resolution H2 1-0 S(1) 2.122 mm image of the Ring Nebula (NGC 6720),
which was taken with the Near Infrared Imager at the WIYN 3.5 m telescope on Kitt Peak. The high resolution of the H2 observation is ...
Viscous corrections to the resistance of nano-junctions: a dispersion relation approach
(arXiv, 2011)
It is well known that the viscosity of a homogeneous electron liquid diverges in the limits of zero frequency and zero temperature. A nanojunction breaks translational invariance and necessarily cuts off this divergence. ...
Spin Drag in Ultracold Fermi Mixtures with Repulsive Interactions
(arXiv, 2010)
We calculate the spin-drag relaxation rate for a two-component ultracold atomic Fermi gas with positive scattering length between the two spin components. In one dimension we find that it vanishes linearly with temperature. ...
Circular holonomy and clock effects in stationary axisymmetric spacetimes
(American Institute of Physics, 2001)
Stationary axisymmetric spacetimes containing a pair of oppositely rotating periodically intersecting circular geodesics allow us to study the various so-called 'clock effects' by comparing either observer or geodesic ...
The generalized Jacobi equation
(American Institute of Physics, 2002)
The Jacobi equation in pseudo-Riemannian geometry determines the linearized geodesic flow. The linearization ignores the relative velocity of the geodesics. The generalized Jacobi equation takes the relative velocity into ...
Length measurement in accelerated systems
(arXiv, 2002)
We investigate the limitations of length measurements by accelerated observers in Minkowski spacetime brought about via the hypothesis of locality, namely, the assumption that an accelerated observer at each instant is ...
Modification of the Doppler effect due to the helicity-rotation coupling
(arXiv, 2002)
The helicity-rotation coupling and its current empirical basis are examined. The modification of the Doppler effect due to the coupling of photon spin with the rotation of the observer is considered in detail in connection ...
Acceleration-induced nonlocal electrodynamics in Minkowski spacetime
(arXiv, 2000)
We discuss two nonlocal models of electrodynamics in which the nonlocality is induced by the acceleration of the observer. Such an observer actually measures an electromagnetic field that exhibits persistent memory effects. ...
Spacetime measurements in Kaluza-Klein gravity
(arXiv, 2000)
We extend the classical general relativistic theory of measurement to include the possibility of existence of higher dimensions. The intrusion of these dimensions in the spacetime interval implies that the inertial mass ...
Determining the Dust Extinction of Gamma-ray Burst Host Galaxies: A Direct Method Based on Optical and X-ray Photometry
(American Institute of Physics, 2008)
We propose a straightforward method to determine the extinction of GRB host galaxies by comparing the observed optical spectra to the intrinsic ones extrapolated from the X-ray spectra. The derived extinction curves are ...
Calculating the 3D-Pose of Rigid-Objects Using Active Appearance Models
(IEEE, 2004-05)
This paper presents two different algorithms for object tracking and pose estimation. Both methods are based on an appearance model technique called Active Appearance Model (AAM). The key idea of the first method is to ...
How best to diagnose asthma in infants and toddlers?
(Family Physicians Inquiries Network, 2011)
No reliable way exists to diagnose asthma in infants and toddlers. Recurrent wheezing, especially apart from colds, combined with physician diagnosed eczema or atopic dermatitis, eosinophilia, and a parental history of ...
An alternative to oral NSAIDs for acute musculoskeletal injuries
(Family Physicians Inquiries Network, 2011)
For patients with acute musculoskeletal injuries, topical NSAIDs are an effective alternative for pain relief. Stength of recommendation: A: Based on a meta-analysis of 47 high-quality randomized clinical trials.
Crystalline-to-plastic phase transitions in molecularly thin n-dotriacontane films adsorbed on solid surfaces
(American Institute of Physics, 2009)
Crystalline-to-rotator phase transitions have been widely studied in bulk hydrocarbons, in particular in normal alkanes. But few studies of these transitions deal with molecularly thin films of pure n-alkanes on solid ...
Density‐functional studies of the electronic structure of the perovskite oxides: La1−xCaxMnO3
(American Institute of Physics, 1996)
Using density‐functional methods, we study the electronic structures of the lanthanum‐based ''double‐exchange'' perovskite magnets. Antiferromagnetic insulating solutions are obtained for both the end members, LaMnO3 and ...