• European Commission close

A gas inlet was installed at the bow of RV Poseidon.Atmospheric gas concentrations of CH4 and CO2 were measured continuously with a Picarro G2301-f analyzer.Concentrations are given as “ppmV in dry air”.

A2 Collaboration at MAMI. Precise helicity-dependent cross sections and the double-polarization observable E were measured for $\eta$ photoproduction from quasifree protons and neutrons bound in the deuteron. The $2\gamma$ and $3\pi^0$ decay modes were used to optimize the statistical quality of the data and to estimate systematic uncertainties. The measurement used the A2 detector setup at the tagged photon beam of the electron accelerator MAMI in Mainz. A longitudinally polarized deuterated butanol target was used in combination with a circularly polarized photon beam from bremsstrahlung of a longitudinally polarized electron beam. The reaction products were detected with the electromagnetic calorimeters Crystal Ball and TAPS, which covered 98% of the full solid angle. The main systematic uncertainty of the E asymmetry is related to the measurement of the beam and target polarizations. The uncertainty of the photon polarization degree was determined to be ±2.7%. The uncertainty of the target polarization was estimated as ±10%. Diff. cross section for helicity-1/2 at W= 1.772 GeV

CERN-LHC. Measurements of cross sections for final states containing a W boson and hadronic jets in proton-proton collisions at a centre-of-mass energy of 7 TeV. The data is from the full 2010 sample with a total integrated luminosity of 36 pb^{-1}. Cross sections are measured in both the electron and muon decay modes of the W and are presented as a function of inclusive jet multiplicity up to five jets. For each multiplicity, cross sections are determined as a function of (1) each jet PT, (2) the scalar sum (HT) of the PT of the charged lepton, missing PT and all jets, (3) the invariant mass of the jets and (4) rapidity distributions of various combinations of leptons and jets. The results are corrected for all detector effects and all known backgrounds. Comparative results are also shown for particle-level predicitions from ALPGEN, SHERPA and BLACKHAT-SHERPA. A separate link gives the Non-Perturbative and QED correction for each table. Note added (26 JUN 2014): The cross section values reported in Tables 1, 3-25, 51, 53-75 below should be multiplied by a factor of 1.0187 to take into account the updated value of the integrated luminosity for the ATLAS 2010 data taking period. The uncertainty on the global normalisation ("Lumi") increases slightly from 3.4% to 3.5%. See Eur.Phys.J. C73 (2013) 2518 for more details. The predicted W+jets cross section as a function of the invariant mass of the first+second jets for jet multiplicites >= 2 and jet PT > 30 GeV.

Parcel soil scan with electric conductivity measurement from Netherlands

Related Article: Maxime Tricoire, Luca Münzfeld, Jules Moutet, Nolwenn Mahieu, Léo La Droitte, Eufemio Moreno-Pineda, Frédéric Gendron, Jeremy D. Hilgar, Jeffrey D. Rinehart, Mario Ruben, Boris Le Guennic, Olivier Cador, Peter W. Roesky, Grégory Nocton|2021|Chem.-Eur.J.|27|13558|doi:10.1002/chem.202101599

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures. Related Article: Mathew Savage, Ivan da Silva, Mark Johnson, Joseph H. Carter, Ruth Newby, Mikhail Suyetin, Elena Besley, Pascal Manuel, Svemir Rudić, Andrew N. Fitch, Claire Murray, William I. F. David, Sihai Yang, and Martin Schröder|2016|J.Am.Chem.Soc.|138|9119|doi:10.1021/jacs.6b01323

Comprehensive list of the commercially available micro- and nanoplastic (MNP) test or reference materials compiled for a review paper pusblished as an initiative of INFRAMES (https://lnkd.in/dNB54F_X). Information on the manufacturer/suplier, price, MNP quantity in the package, type of dispersion (suspension or powder), MNP particle size and shape, polymer type, and label if there is one is included in the table. If you are aware of a material that is not included in the table or want to provide any additional information or suggest a correction, please send us the data and we'll try to include it in the next update of the list.