Oceans governance in the Arctic

Global warming is bringing rapid change to the Arctic. The melting of sea ice and glaciers is increasing faster than scientists predicted even a year ago. Environmental change is forcing legal and economic developments, which in turn will have serious environmental and social consequences. However, the potential for conflict has been greatly exaggerated. The 1982 United Nations Convention on the Law of the Sea (LOS C) has established the international legal regime governing the division of ocean space, sovereign rights over ocean resources, protection of the marine environment and the conduct of activities in and under the Arctic Ocean. Furtherrmore, a number of global environmental and maritime conventions apply to the Arctic. All the land territory, with its resources, is subject to national jurisdiction, as are the maritime zones proceeding seawards to the limits set our in the LOSe. While there is no multilateral political organisation with the power to regulate activities or to take legally binding decisions, there is a cooperative mechanism in the Arctic Council. Once all the maritime boundaries in the Arctic are delimited, the exploitation of resources can begin. However, first, precautionary measures should be adopted to ensure that the environment is protected as much as possible from increases in shipping and fishing as well as oil and gas development. This would require the elaboration of a regional seas agreement for the Arctic, incorporating elements of the Arctic Council, that reiterates the general principles in Part XII of the LOSC as well as those in the UN Fish Stocks Agreement, including the precautionary approach and the ecosystem approach

Porcelain enameling quality steel plates and weldments

Issued as Status report, no. 1-11, Summary report, no. 1-3, Special report, no. 1, and Annual report, no. 1, Project no. A-204Continued by Project no. A-30

A survey of bioengineering interests in Atlanta

Issued as Letter report and Final Report, Project no. E-300-90

De la France et des États-Unis ou De l'importance de la Révolution de l'Amérique pour le bonheur de la France, des rapports de ce Royaume & des États-Unis, des avantages réciproques qu'ils peuvent retirer de leurs liaisons de commerce, & enfin de la situation actuelle des États-Unis

Sign.: a\p8\s, b\p4\s, a-c\p8\s, A-X\p8\s, Y\p4\

Por la senda revolucionaria 60 Aniversario del Partido Comunista de El Salvador

El libro “Por la senda revolucionaria”, también corresponde a la participación que Schafik Hándal, Secretario General del Partido Comunista de El Salvador, PCS, tuvo en la jornada conmemorativa del 60 Aniversario del PCS en 1990; en el que se abrió un proceso de debate de reflexión de toda la militancia del PCS para encarar los retos de la década de los años noventa, para elaborar la posición del Partido, sus ideas y su línea frente a los cambios que conmovieron al mundo a finales del siglo veinte

Measurement of the polarisation of W bosons produced with large transverse momentum in pp collisions at sqrt(s) = 7 TeV with the ATLAS experiment

This paper describes an analysis of the angular distribution of W->enu and W->munu decays, using data from pp collisions at sqrt(s) = 7 TeV recorded with the ATLAS detector at the LHC in 2010, corresponding to an integrated luminosity of about 35 pb^-1. Using the decay lepton transverse momentum and the missing transverse energy, the W decay angular distribution projected onto the transverse plane is obtained and analysed in terms of helicity fractions f0, fL and fR over two ranges of W transverse momentum (ptw): 35 < ptw < 50 GeV and ptw > 50 GeV. Good agreement is found with theoretical predictions. For ptw > 50 GeV, the values of f0 and fL-fR, averaged over charge and lepton flavour, are measured to be : f0 = 0.127 +/- 0.030 +/- 0.108 and fL-fR = 0.252 +/- 0.017 +/- 0.030, where the first uncertainties are statistical, and the second include all systematic effects.Comment: 19 pages plus author list (34 pages total), 9 figures, 11 tables, revised author list, matches European Journal of Physics C versio

Observation of a new chi_b state in radiative transitions to Upsilon(1S) and Upsilon(2S) at ATLAS

The chi_b(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb^-1, these states are reconstructed through their radiative decays to Upsilon(1S,2S) with Upsilon->mu+mu-. In addition to the mass peaks corresponding to the decay modes chi_b(1P,2P)->Upsilon(1S)gamma, a new structure centered at a mass of 10.530+/-0.005 (stat.)+/-0.009 (syst.) GeV is also observed, in both the Upsilon(1S)gamma and Upsilon(2S)gamma decay modes. This is interpreted as the chi_b(3P) system.Comment: 5 pages plus author list (18 pages total), 2 figures, 1 table, corrected author list, matches final version in Physical Review Letter

Search for displaced vertices arising from decays of new heavy particles in 7 TeV pp collisions at ATLAS

We present the results of a search for new, heavy particles that decay at a significant distance from their production point into a final state containing charged hadrons in association with a high-momentum muon. The search is conducted in a pp-collision data sample with a center-of-mass energy of 7 TeV and an integrated luminosity of 33 pb^-1 collected in 2010 by the ATLAS detector operating at the Large Hadron Collider. Production of such particles is expected in various scenarios of physics beyond the standard model. We observe no signal and place limits on the production cross-section of supersymmetric particles in an R-parity-violating scenario as a function of the neutralino lifetime. Limits are presented for different squark and neutralino masses, enabling extension of the limits to a variety of other models.Comment: 8 pages plus author list (20 pages total), 8 figures, 1 table, final version to appear in Physics Letters

Measurement of the inclusive isolated prompt photon cross-section in pp collisions at sqrt(s)= 7 TeV using 35 pb-1 of ATLAS data

A measurement of the differential cross-section for the inclusive production of isolated prompt photons in pp collisions at a center-of-mass energy sqrt(s) = 7 TeV is presented. The measurement covers the pseudorapidity ranges |eta|<1.37 and 1.52<=|eta|<2.37 in the transverse energy range 45<=E_T<400GeV. The results are based on an integrated luminosity of 35 pb-1, collected with the ATLAS detector at the LHC. The yields of the signal photons are measured using a data-driven technique, based on the observed distribution of the hadronic energy in a narrow cone around the photon candidate and the photon selection criteria. The results are compared with next-to-leading order perturbative QCD calculations and found to be in good agreement over four orders of magnitude in cross-section.Comment: 7 pages plus author list (18 pages total), 2 figures, 4 tables, final version published in Physics Letters