), the very large size of this reservoir means that even small increases in the a large influence on atmospheric [CO2]. Global temperatures are n is strongly tem-transfer of C from se in atmospheric ng (Holland et al., temperature re-e, the realized e as of SOC decompo-ted future rates of SOC decomposition

Wolf–Rayet (WR) stars represent one of the final stages of massive stellar evolution. Relatively little is known about this short-lived phase and we currently lack reliable mass, distance, and binarity determinations for a representative sample. Here we report the first visual orbit for WR 140 ( = HD193793), a WC7 + O5 binary system known for its periodic dust production episodes triggered by intense colliding winds near periastron passage. The Infrared-Optical Telescope Array and Center for High Angular Resolution Astronomy interferometers resolved the pair of stars in each year from 2003 to 2009, covering most of the highly eccentric, 7.9 year orbit. Combining our results with the recently improved double-line spectroscopic orbit of Fahed et al., we find the WR 140 system is located at a distance

(DOI: will be inserted by hand later) VLTI/AMBER and VLTI/MIDI spectro-interferometric observations of the B[e] supergiant CPD−57 ◦ 2874?

Noname manuscript No. (will be inserted by the editor) Spatiospectral concentration in the Cartesian plane

We study the generalizations of the well-known Lieb-Thirring inequality for the mag-netic Schrodinger operator with nonconstant magnetic eld. Our main result is the natu-rally expected magnetic Lieb-Thirring estimate on the moments of the negative eigenvalues for a certain class of magnetic elds (including even some unbounded ones). We develop a localization technique in path space of the stochastic Feynman-Kac representation of the heat kernel which eectively estimates the oscillatory eect due to the magnetic phase

In this paper, we analyze technology transfers (TT) and tradable emission rights, which are core issues of the ongoing climate negotiations. Subsidizing TT leads to the adoption of better abatement technologies in developing countries, thereby reducing the international permit price. This is beneficial for industrialized countries as long as they are permit buyers, and as long as they can target subsidies to “additional ” investments. We also consider how TT affects countries ’ non-cooperative choices of permit endowments and find that it reduces overall emissions. Finally, a simple numerical simulation model illustrates some results and explores some further comparative statics.

Caractérisation des problèmes conjoints de détection et d'estimation

conflicting evidence regarding the effects of forest management on soil C pools. We analyzed the effects of harvesting, thinning, fertilization Geoderma 137 (2007) 253–268application, drainage, tree species selection, and control of natural disturbances on soil C dynamics. We focused on factors

Temperature sensitivity of soil organic matter decomposition in boreal soils

cell balance equations