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Global and regional climate changes due to black carbon,

by V Ramanathan , G Carmichael - Nat. Geosci., , 2008
"... Figure 1: Global distribution of BC sources and radiative forcing. a, BC emission strength in tons per year from a study by Bond et al. Full size image (42 KB) Review Nature Geoscience 1, 221 -227 (2008 Black carbon in soot is the dominant absorber of visible solar radiation in the atmosphere. Ant ..."
Abstract - Cited by 228 (5 self) - Add to MetaCart
with wavelengths from near-infrared (1 m) to ultraviolet wavelengths with a power law of one to three depending on the source 3, 25 , thus giving the brownish colour to the sky. Unlike the greenhouse effect of CO2, which leads to a positive radiative forcing of the atmosphere and at the surface 26 with moderate

Velocity dispersion, mass and the luminosity function of the fossil cluster RX J1416.4+2315 1

by Eduardo S. Cypriano, Claudia L. Mendes De Oliveira, Laerte Sodré , 2006
"... We study the properties of the fossil cluster RX J1416.4+2315 through g ’ and i’-band imaging and spectroscopy of 25 member galaxies. The system is at a mean redshift of 0.137 and has a velocity dispersion of 584 km s−1. Superimposed onto one quadrant of the cluster field there is a group of five ga ..."
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galaxies at a mean redshift of 0.131, which, if included as part of the cluster, increases the velocity dispersion to 846 km/s. The central object of RX J1416.4+2315 is a normal elliptical galaxy, with no cD envelope. The luminosity function of the system, estimated by the number counts, and statistical

Materials for an exploratory theory of the network society.

by Manuel Castells , Anthony Giddens , Alain Touraine , Anthony Smith , Benjamin Barber , Peter Hall , Roger-Pol Droit , Sophie Watson , Frank Webster , Krishan Kumar , David Lyon , Craig Calhoun , Jeffrey Henderson , Ramon Ramos , Jose E Rodrigues-Ibanez , Jose F Tezanos , Mary Kaldor , Stephen Jones , Christopher Freeman - The British Journal of Sociology , 2000
"... ABSTRACT This article aims at proposing some elements for a grounded theor y of the network society. The network society is the social structure characteristic of the Information Age, as tentatively identi ed by empirical, cross-cultural investigation. It permeates most societies in the world, in v ..."
Abstract - Cited by 122 (0 self) - Add to MetaCart
traded. This global nancial market works only partly according to market rules. It is shaped and moved by information turbulences of various origins, processed and transmitted almost instantly by tele-communicated, information systems, in the absence of the institutional regulation of global capital ows

DIMENSIONS OF FORMAL FIBERS OF HEIGHT ONE PRIME IDEALS

by Adam Boocher A, Michael Daub A, Adam Boocher, Michael Daub , 2010
"... This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express o ..."
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This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

Pulmonary toxicity of single-walled carbon nanotubes in mice 7 and 90 days after intratracheal instillation.

by Chiu-Wing Lam , John T James , Richard Mccluskey , Robert L Hunter - Toxicol. Sci. , 2004
"... Nanomaterials are part of an industrial revolution to develop lightweight but strong materials for a variety of purposes. Singlewall carbon nanotubes are an important member of this class of materials. They structurally resemble rolled-up graphite sheets, usually with one end capped; individually t ..."
Abstract - Cited by 104 (1 self) - Add to MetaCart
Nanomaterials are part of an industrial revolution to develop lightweight but strong materials for a variety of purposes. Singlewall carbon nanotubes are an important member of this class of materials. They structurally resemble rolled-up graphite sheets, usually with one end capped; individually

Dumb money: Mutual fund flows and the cross section of stock returns,

by Andrea Frazzini , Owen A Lamont - Journal of Financial Economics, , 2008
"... We thank Nicholas Barberis and Judith Chevalier for helpful comments. We thank Breno Schmidt for research assistance. ABSTRACT We use mutual fund flows as a measure for individual investor sentiment for different stocks, and find that high sentiment predicts low future returns. Fund flows are dumb ..."
Abstract - Cited by 103 (4 self) - Add to MetaCart
economic themes or investment styles in reallocating funds. Collectively, one can measure individual sentiment by looking at which funds receive inflows and which receive outflows, and can relate this sentiment to different stocks by examining the holdings of mutual funds. This paper tests whether

Block-Diagonal Preconditioners for Indefinite Linear Algebraic Systems. Part I: Theory

by Eric de Sturler, Jörg Liesen - SIAM J. SCI. COMPUT , 2003
"... We study block-diagonal preconditioners and fast iterative solvers for indefinite two-by-two block linear systems with zero (2,2) block. Our preconditioners are derived from a splitting of the (1,1) block, A = D E, where the matrix D can be efficiently inverted. Dierent splittings lead to dierent pr ..."
Abstract - Cited by 5 (2 self) - Add to MetaCart
We study block-diagonal preconditioners and fast iterative solvers for indefinite two-by-two block linear systems with zero (2,2) block. Our preconditioners are derived from a splitting of the (1,1) block, A = D E, where the matrix D can be efficiently inverted. Dierent splittings lead to dierent

where A+ (A−) denotes the Hermitian (skew-Hermitian) part of the matrix

by I. Lomidze
"... Abstract. Nonimprovable, in general, estimates of the number of necessary and sufficient conditions for two Hermitian operators to be unitarily equaivalent in a unitary space are obtained when the multiplicities of eigenvalues of operators can be more than 1. The explicit form of these conditions is ..."
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orthonormal basis. Description of a system of invariants of these matrices which enables one to find out whether the given operators are unitarily equivalent is the classical problem of the theory of invariants (see, e.g., [1, §2.2], [2] and the references cited therein). In the author’s paper [3] it is shown

SUMMARY

by Amir Salman Avestimehr, Aydin Sezgin, David N. C. Tse
"... We study the capacity of the full-duplex bidirectional (or two-way) relay channel with two nodes and one relay. The channels in the forward direction are assumed to be different (in general) than the channels in the backward direction, i.e. channel reciprocity is not assumed. We use the recently pro ..."
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We study the capacity of the full-duplex bidirectional (or two-way) relay channel with two nodes and one relay. The channels in the forward direction are assumed to be different (in general) than the channels in the backward direction, i.e. channel reciprocity is not assumed. We use the recently

UNITU–THEP–3/1998 FAU–TP3–98/2 Solving a Coupled Set of Truncated QCD Dyson–Schwinger Equations

by A. Hauck A, L. Von Smekal B, R. Alkofer A , 1998
"... Truncated Dyson–Schwinger equations represent finite subsets of the equations of motion for Green’s functions. Solutions to these non–linear integral equations can account for non–perturbative correlations. A closed set of coupled Dyson–Schwinger equations for the propagators of gluons and ghosts in ..."
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in Landau gauge QCD is obtained by neglecting all contributions from irreducible 4–point correlations and by implementing the Slavnov–Taylor identities for the 3–point vertex functions. We solve this coupled set in an one–dimensional approximation which allows for an analytic infrared expansion necessary
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