301 research outputs found
Clinical Manifestations and Case Management of Ebola Haemorrhagic Fever caused by a newly identified virus strain, Bundibugyo, Uganda, 2007-2008
A confirmed Ebola haemorrhagic fever (EHF) outbreak in Bundibugyo, Uganda, November 2007-February 2008, was caused by a putative new species (Bundibugyo ebolavirus). It included 93 putative cases, 56 laboratory-confirmed cases, and 37 deaths (CFR = 25%). Study objectives are to describe clinical manifestations and case management for 26 hospitalised laboratory-confirmed EHF patients. Clinical findings are congruous with previously reported EHF infections. The most frequently experienced symptoms were non-bloody diarrhoea (81%), severe headache (81%), and asthenia (77%). Seven patients reported or were observed with haemorrhagic symptoms, six of whom died. Ebola care remains difficult due to the resource-poor setting of outbreaks and the infection-control procedures required. However, quality data collection is essential to evaluate case definitions and therapeutic interventions, and needs improvement in future epidemics. Organizations usually involved in EHF case management have a particular responsibility in this respect
Natural infection by the protozoan Leptomonas wallacei impacts the morphology, physiology, reproduction, and lifespan of the insect Oncopeltus fasciatus
Trypanosomatids are protozoan parasites that infect thousands of globally dispersed hosts, potentially affecting their physiology. Several species of trypanosomatids are commonly found in phytophagous insects. Leptomonas wallacei is a gut-restricted insect trypanosomatid only retrieved from Oncopeltus fasciatus. The insects get infected by coprophagy and transovum transmission of L. wallacei cysts. The main goal of the present study was to investigate the effects of a natural infection by L. wallacei on the hemipteran insect O. fasciatus, by comparing infected and uninfected individuals in a controlled environment. The L. wallacei-infected individuals showed reduced lifespan and morphological alterations. Also, we demonstrated a higher infection burden in females than in males. The infection caused by L. wallacei reduced host reproductive fitness by negatively impacting egg load, oviposition, and eclosion, and promoting an increase in egg reabsorption. Moreover, we associated the egg reabsorption observed in infected females, with a decrease in the intersex gene expression. Finally, we suggest alterations in population dynamics induced by L. wallacei infection using a mathematical model. Collectively, our findings demonstrated that L. wallacei infection negatively affected the physiology of O. fasciatus, which suggests that L. wallacei potentially has a vast ecological impact on host population growth
Measurement of the B+ and B-0 lifetimes and search for CP(T) violation using reconstructed secondary vertices
The lifetimes of the B+ and B-0 mesons, and their ratio, have been measured in the OPAL experiment using 2.4 million hadronic Z(0) decays recorded at LEP. Z(0) --> b (b) over bar decays were tagged using displaced secondary vertices and high momentum electrons and muons. The lifetimes were then measured using well-reconstructed charged and neutral secondary vertices selected in this tagged data sample. The results aretau(B+) = 1.643 +/- 0.037 +/- 0.025 pstau(Bo) = 1.523 +/- 0.057 +/- 0.053 pstau(B+)/tau(Bo) = 1.079 +/- 0.064 +/- 0.041,where in each case the first error is statistical and the second systematic.A larger data sample of 3.1 million hadronic Z(o) decays has been used to search for CP and CPT violating effects by comparison of inclusive b and (b) over bar hadron decays, No evidence fur such effects is seen. The CP violation parameter Re(epsilon(B)) is measured to be Re(epsilon(B)) = 0.001 +/- 0.014 +/- 0.003and the fractional difference between b and (b) over bar hadron lifetimes is measured to(Delta tau/tau)(b) = tau(b hadron) - tau((b) over bar hadron)/tau(average) = -0.001 +/- 0.012 +/- 0.008
Reversible and Noisy Progression towards a Commitment Point Enables Adaptable and Reliable Cellular Decision-Making
Cells must make reliable decisions under fluctuating extracellular conditions, but also be flexible enough to adapt to such changes. How cells reconcile these seemingly contradictory requirements through the dynamics of cellular decision-making is poorly understood. To study this issue we quantitatively measured gene expression and protein localization in single cells of the model organism Bacillus subtilis during the progression to spore formation. We found that sporulation proceeded through noisy and reversible steps towards an irreversible, all-or-none commitment point. Specifically, we observed cell-autonomous and spontaneous bursts of gene expression and transient protein localization events during sporulation. Based on these measurements we developed mathematical population models to investigate how the degree of reversibility affects cellular decision-making. In particular, we evaluated the effect of reversibility on the 1) reliability in the progression to sporulation, and 2) adaptability under changing extracellular stress conditions. Results show that reversible progression allows cells to remain responsive to long-term environmental fluctuations. In contrast, the irreversible commitment point supports reliable execution of cell fate choice that is robust against short-term reductions in stress. This combination of opposite dynamic behaviors (reversible and irreversible) thus maximizes both adaptable and reliable decision-making over a broad range of changes in environmental conditions. These results suggest that decision-making systems might employ a general hybrid strategy to cope with unpredictably fluctuating environmental conditions
Light-Promoted Hydrogenation of Carbon Dioxide¿An Overview
[EN] Hydrogenation of carbon dioxide is considered as a viable strategy to generate fuels while closing the carbon cycle (heavily disrupted by the abuse in the exploitation of fossil resources) and reducing greenhouse gas emissions. The process can be performed by heat-powered catalytic processes, albeit conversion and selectivity tend to be reduced at increasing temperatures owing to thermodynamic constraints. Recent investigations, as summarised in this overview, have proven that light activation is a distinct possibility for the promotion of CO2 hydrogenation to fuels. This effect is particularly beneficial in methanation processes, which can be enhanced under simulated solar irradiation using materials based on metallic nanoparticles as catalysts. The use of nickel, ruthenium and rhodium has led to substantial efficiencies. Light-promoted processes entail performances on a par with (or even superior to) those of thermally-induced, industrially-relevant, commercial technologies.The author thanks the Spanish Government (Ministerio de Economía y Competitividad, MINECO) for financial support via a project for young researchers (CTQ2015-74138-JIN), and the ‘‘Severo Ochoa’’ programme (SEV 2012-0267). The European Union is also acknowledged for the SynCatMatch project (ERCAdG-2014-671093)Puga Vaca, A. (2016). Light-Promoted Hydrogenation of Carbon Dioxide¿An Overview. Topics in Catalysis. 59(15-16):1268-1278. https://doi.org/10.1007/s11244-016-0658-zS126812785915-16Centi G, Perathoner S (2009) Opportunities and prospects in the chemical recycling of carbon dioxide to fuels. Catal Today 148:191–205Aresta M, Dibenedetto A, Angelini A (2014) Catalysis for the valorization of exhaust carbon: from CO2 to chemicals, materials, and fuels. technological use of CO2. Chem Rev 114:1709–1742Centi G, Quadrelli EA, Perathoner S (2013) Catalysis for CO2 conversion: a key technology for rapid introduction of renewable energy in the value chain of chemical industries. Energy Environ Sci 6:1711–1731Wang W, Wang S, Ma X, Gong J (2011) Recent advances in catalytic hydrogenation of carbon dioxide. Chem Soc Rev 40:3703–3727Gao J, Liu Q, Gu F, Liu B, Zhong Z, Su F (2015) Recent advances in methanation catalysts for the production of synthetic natural gas. RSC Adv 5:22759–22776Armaroli N, Balzani V (2011) The hydrogen issue. ChemSusChem 4:21–36Gao J, Wang Y, Ping Y, Hu D, Xu G, Gu F, Su F (2012) A thermodynamic analysis of methanation reactions of carbon oxides for the production of synthetic natural gas. RSC Adv 2:2358–2368Jadhav SG, Vaidya PD, Bhanage BM, Joshi JB (2014) Catalytic carbon dioxide hydrogenation to methanol: a review of recent studies. Chem Eng Res Des 92:2557–2567de Richter RK, Ming T, Caillol S (2013) Fighting global warming by photocatalytic reduction of CO2 using giant photocatalytic reactors. Renew Sust Energ Rev 19:82–106Schach M-O, Schneider R, Schramm H, Repke J-U (2010) Techno-economic analysis of postcombustion processes for the capture of carbon dioxide from power plant flue gas. Ind Eng Chem Res 49:2363–2370Centi G, Perathoner S (2010) Towards solar fuels from water and CO2. ChemSusChem 3:195–208Corma A, Garcia H (2013) Photocatalytic reduction of CO2 for fuel production: possibilities and challenges. J Catal 308:168–175Izumi Y (2013) Recent advances in the photocatalytic conversion of carbon dioxide to fuels with water and/or hydrogen using solar energy and beyond. Coord Chem Rev 257:171–186Dhakshinamoorthy A, Navalon S, Corma A, Garcia H (2012) Photocatalytic CO2 reduction by TiO2 and related titanium containing solids. Energy Environ Sci 5:9217–9233Indrakanti VP, Kubicki JD, Schobert HH (2009) Photoinduced activation of CO2 on Ti-based heterogeneous catalysts: current state, chemical physics-based insights and outlook. Energy Environ Sci 2:745–758Ozin GA (2015) You can’t have an energy revolution without transforming advances in materials, chemistry and catalysis into policy change and action. Energy Environ Sci 8:1682–1684Ozin GA (2015) Throwing new light on the reduction of CO2. Adv Mater 27:1957–1963Abe T, Tanizawa M, Watanabe K, Taguchi A (2009) CO2 methanation property of Ru nanoparticle-loaded TiO2 prepared by a polygonal barrel-sputtering method. Energy Environ Sci 2:315–321Li Y, Lu G, Ma J (2014) Highly active and stable nano NiO-MgO catalyst encapsulated by silica with a core-shell structure for CO2 methanation. RSC Adv 4:17420–17428Garbarino G, Bellotti D, Riani P, Magistri L, Busca G (2015) Methanation of carbon dioxide on Ru/Al2O3 and Ni/Al2O3 catalysts at atmospheric pressure: catalysts activation, behaviour and stability. Int J Hydrogen Energy 40:9171–9182Carenco S, Wu C-H, Shavorskiy A, Alayoglu S, Somorjai GA, Bluhm H, Salmeron M (2015) Synthesis and structural evolution of nickel-cobalt nanoparticles under H2 and CO2. Small 11:3045–3053Sharafutdinov I, Elkjaer CF, de Carvalho HWP, Gardini D, Chiarello GL, Damsgaard CD, Wagner JB, Grunwaldt J-D, Dahl S, Chorkendorff I (2014) Intermetallic compounds of Ni and Ga as catalysts for the synthesis of methanol. J Catal 320:77–88Studt F, Sharafutdinov I, Abild-Pedersen F, Elkjaer CF, Hummelshøj JS, Dahl S, Chorkendorff I, Nørskov JK (2014) Discovery of a Ni-Ga catalyst for carbon dioxide reduction to methanol. Nat Chem 6:320–324Garbarino G, Riani P, Magistri L, Busca G (2014) A study of the methanation of carbon dioxide on Ni/Al2O3 catalysts at atmospheric pressure. Int J Hydrogen Energy 39:11557–11565Iablokov V, Beaumont SK, Alayoglu S, Pushkarev VV, Specht C, Gao J, Alivisatos AP, Kruse N, Somorjai GA (2012) Size-controlled model CO nanoparticle catalysts for CO2 hydrogenation: synthesis, characterization, and catalytic reactions. Nano Lett 12:3091–3096Behrens M, Studt F, Kasatkin I, Kühl S, Hävecker M, Abild-Pedersen F, Zander S, Girgsdies F, Kurr P, Kniep B-L, Tovar M, Fischer RW, Nørskov JK, Schlögl R (2012) The active site of methanol synthesis over Cu/ZnO/Al2O3 industrial catalysts. Science 336:893–897Graciani J, Mudiyanselage K, Xu F, Baber AE, Evans J, Senanayake SD, Stacchiola DJ, Liu P, Hrbek J, Fernández Sanz J, Rodriguez JA (2014) Highly active copper-ceria and copper-ceria-titania catalysts for methanol synthesis from CO2. Science 345:546–550Fiordaliso EM, Sharafutdinov I, Carvalho HWP, Grunwaldt J-D, Hansen TW, Chorkendorff I, Wagner JB, Damsgaard CD (2015) Intermetallic GaPd2 nanoparticles on SiO2 for low-pressure CO2 hydrogenation to methanol: catalytic performance and in situ characterization. ACS Catal 5:5827–5836Kohno Y, Tanaka T, Funabiki T, Yoshida S (1997) Photoreduction of carbon dioxide with hydrogen over ZrO2. Chem Commun 9:841–842Kohno Y, Tanaka T, Funabiki T, Yoshida S (2000) Photoreduction of CO2 with H2 over ZrO2. A study of interaction of hydrogen with photoexcited CO2. Phys Chem Chem Phys 2:2635–2639Kohno Y, Ishikawa H, Tanaka T, Funabiki T, Yoshida S (2001) Photoreduction of carbon dioxide by hydrogen over magnesium oxide. Phys Chem Chem Phys 3:1108–1113Teramura K, Tsuneoka H, Shishido T, Tanaka T (2008) Effect of H2 gas as a reductant on photoreduction of CO2 over a Ga2O3 photocatalyst. Chem Phys Lett 467:191–194Tsuneoka H, Teramura K, Shishido T, Tanaka T (2010) Adsorbed Species of CO2 and H2 on Ga2O3 for the Photocatalytic Reduction of CO2. J Phys Chem C 114:8892–8898Teramura K, S-i Okuoka, Tsuneoka H, Shishido T, Tanaka T (2010) Photocatalytic reduction of CO2 using H2 as reductant over ATaO3 photocatalysts (A = Li, Na, K). Appl Catal B 96:565–568Kohno Y, Hayashi H, Takenaka S, Tanaka T, Funabiki T, Yoshida S (1999) Photo-enhanced reduction of carbon dioxide with hydrogen over Rh/TiO2. J Photochem Photobiol A 126:117–123Lo C-C, Hung C-H, Yuan C-S, Wu J-F (2007) Photoreduction of carbon dioxide with H2 and H2O over TiO2 and ZrO2 in a circulated photocatalytic reactor. Sol Energy Mater Sol Cells 91:1765–1774Hoch LB, Wood TE, O’Brien PG, Liao K, Reyes LM, Mims CA, Ozin GA (2014) The rational design of a single-component photocatalyst for gas-phase CO2 reduction using both UV and visible light. Adv Sci 1:1400013Li M, Li P, Chang K, Wang T, Liu L, Kang Q, Ouyang S, Ye J (2015) Highly efficient and stable photocatalytic reduction of CO2 to CH4 over Ru loaded NaTaO3. Chem Commun 51:7645–7648Tahir M, Amin NS (2015) Photocatalytic CO2 reduction with H2 as reductant over copper and indium co-doped TiO2 nanocatalysts in a monolith photoreactor. Appl Catal A 493:90–102Tahir M, Amin NS (2016) Performance analysis of nanostructured NiO–In2O3/TiO2 catalyst for CO2 photoreduction with H2 in a monolith photoreactor. Chem Eng J 285:635–649Ahmed N, Shibata Y, Taniguchi T, Izumi Y (2011) Photocatalytic conversion of carbon dioxide into methanol using zinc-copper-M(III) (M = aluminum, gallium) layered double hydroxides. J Catal 279:123–135Ahmed N, Morikawa M, Izumi Y (2012) Photocatalytic conversion of carbon dioxide into methanol using optimized layered double hydroxide catalysts. Catal Today 185:263–269Yang C-C, Vernimmen J, Meynen V, Cool P, Mul G (2011) Mechanistic study of hydrocarbon formation in photocatalytic CO2 reduction over Ti-SBA-15. J Catal 284:1–8Thampi KR, Kiwi J, Grätzel M (1987) Methanation and photo-methanation of carbon-dioxide at room-temperature and atmospheric pressure. Nature 327:506–508O’Brien PG, Sandhel A, Wood TE, Jelle AA, Hoch LB, Perovic DD, Mims CA, Ozin GA (2014) Photomethanation of gaseous CO2 over RU/silicon nanowire catalysts with visible and near-infrared photons. Adv Sci 1:1400001Meng X, Wang T, Liu L, Ouyang S, Li P, Hu H, Kako T, Iwai H, Tanaka A, Ye J (2014) Photothermal conversion of CO2 into CH4 with H2 over group VIII nanocatalysts: an alternative approach for solar fuel production. Angew Chem Int Ed 53:11478–11482Sastre F, Puga AV, Liu L, Corma A, García H (2014) Complete photocatalytic reduction of CO2 to methane by H2 under solar light irradiation. J Am Chem Soc 136:6798–6801Hong J, Zhang W, Ren J, Xu R (2013) Photocatalytic reduction of CO2: a brief review on product analysis and systematic methods. Anal Methods 5:1086–1097Yang C-C, Yu Y-H, van der Linden B, Wu JCS, Mul G (2010) Artificial photosynthesis over crystalline TiO2-based catalysts: fact or fiction. J Am Chem Soc 132:8398–8406Kohno Y, Tanaka T, Funabiki T, Yoshida S (1998) Identification and reactivity of a surface intermediate in the photoreduction of CO2 with H2 over ZrO2. J Chem Soc Faraday Trans 94:1875–1880Teramura K, Tanaka T, Ishikawa H, Kohno Y, Funabiki T (2004) Photocatalytic reduction of CO2 to CO in the presence of H2 or CH4 as a reductant over MgO. J Phys Chem B 108:346–354Zhang H, Wang T, Wang J, Liu H, Dao TD, Li M, Liu G, Meng X, Chang K, Shi L, Nagao T, Ye J (2016) Surface-plasmon-enhanced photodriven CO2 reduction catalyzed by metal-organic-framework-derived iron nanoparticles encapsulated by ultrathin carbon layers. Adv Mater 28:3703–3710Morikawa M, Ahmed N, Yoshida Y, Izumi Y (2014) Photoconversion of carbon dioxide in zinc-copper-gallium layered double hydroxides: the kinetics to hydrogen carbonate and further to CO/methanol. Appl Catal B 144:561–569Sabatier P (1910) Making methane or mixtures of methane and hydrogen, US Pat. 956734Melsheimer J, Guo W, Ziegler D, Wesemann M, Schlögl R (1991) Methanation of carbon dioxide over Ru/Titania at room temperature: explorations for a photoassisted catalytic reaction. Catal Lett 11:157–168Lin X, Yang K, Si R, Chen X, Dai W, Fu X (2014) Photoassisted catalytic methanation of CO in H2-rich stream over Ru/TiO2. Appl Catal B 147:585–591Lin X, Lin L, Huang K, Chen X, Dai W, Fu X (2015) CO methanation promoted by UV irradiation over Ni/TiO2. Appl Catal B 168–169:416–422Sastre F, Oteri M, Corma A, García H (2013) Photocatalytic water gas shift using visible or simulated solar light for the efficient, room-temperature hydrogen generation. Energy Environ Sci 6:2211–2215Sastre F, Corma A, García H (2013) Visible-light photocatalytic conversion of carbon monoxide to methane by nickel(ii) oxide. Angew Chem Int Ed 52:12983–12987Zhao Y, Zhao B, Liu J, Chen G, Gao R, Yao S, Li M, Zhang Q, Gu L, Xie J, Wen X, Wu L-Z, Tung C-H, Ma D, Zhang T (2016) Oxide-modified nickel photocatalyst for the production of hydrocarbons in visible light. Angew. Chem. Int. Ed. 55:4215–4219Albero J, Garcia H, Corma A (2016) Temperature dependence of solar light assisted CO2 reduction on Ni based photocatalyst. Top Catal 59:787–79
Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
The performance of muon reconstruction, identification, and triggering in CMS
has been studied using 40 inverse picobarns of data collected in pp collisions
at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection
criteria covering a wide range of physics analysis needs have been examined.
For all considered selections, the efficiency to reconstruct and identify a
muon with a transverse momentum pT larger than a few GeV is above 95% over the
whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4,
while the probability to misidentify a hadron as a muon is well below 1%. The
efficiency to trigger on single muons with pT above a few GeV is higher than
90% over the full eta range, and typically substantially better. The overall
momentum scale is measured to a precision of 0.2% with muons from Z decays. The
transverse momentum resolution varies from 1% to 6% depending on pseudorapidity
for muons with pT below 100 GeV and, using cosmic rays, it is shown to be
better than 10% in the central region up to pT = 1 TeV. Observed distributions
of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO
Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
The performance of muon reconstruction, identification, and triggering in CMS
has been studied using 40 inverse picobarns of data collected in pp collisions
at sqrt(s) = 7 TeV at the LHC in 2010. A few benchmark sets of selection
criteria covering a wide range of physics analysis needs have been examined.
For all considered selections, the efficiency to reconstruct and identify a
muon with a transverse momentum pT larger than a few GeV is above 95% over the
whole region of pseudorapidity covered by the CMS muon system, abs(eta) < 2.4,
while the probability to misidentify a hadron as a muon is well below 1%. The
efficiency to trigger on single muons with pT above a few GeV is higher than
90% over the full eta range, and typically substantially better. The overall
momentum scale is measured to a precision of 0.2% with muons from Z decays. The
transverse momentum resolution varies from 1% to 6% depending on pseudorapidity
for muons with pT below 100 GeV and, using cosmic rays, it is shown to be
better than 10% in the central region up to pT = 1 TeV. Observed distributions
of all quantities are well reproduced by the Monte Carlo simulation.Comment: Replaced with published version. Added journal reference and DO
X-ray emission from the Sombrero galaxy: discrete sources
We present a study of discrete X-ray sources in and around the
bulge-dominated, massive Sa galaxy, Sombrero (M104), based on new and archival
Chandra observations with a total exposure of ~200 ks. With a detection limit
of L_X = 1E37 erg/s and a field of view covering a galactocentric radius of ~30
kpc (11.5 arcminute), 383 sources are detected. Cross-correlation with Spitler
et al.'s catalogue of Sombrero globular clusters (GCs) identified from HST/ACS
observations reveals 41 X-rays sources in GCs, presumably low-mass X-ray
binaries (LMXBs). We quantify the differential luminosity functions (LFs) for
both the detected GC and field LMXBs, whose power-low indices (~1.1 for the
GC-LF and ~1.6 for field-LF) are consistent with previous studies for
elliptical galaxies. With precise sky positions of the GCs without a detected
X-ray source, we further quantify, through a fluctuation analysis, the GC LF at
fainter luminosities down to 1E35 erg/s. The derived index rules out a
faint-end slope flatter than 1.1 at a 2 sigma significance, contrary to recent
findings in several elliptical galaxies and the bulge of M31. On the other
hand, the 2-6 keV unresolved emission places a tight constraint on the field
LF, implying a flattened index of ~1.0 below 1E37 erg/s. We also detect 101
sources in the halo of Sombrero. The presence of these sources cannot be
interpreted as galactic LMXBs whose spatial distribution empirically follows
the starlight. Their number is also higher than the expected number of cosmic
AGNs (52+/-11 [1 sigma]) whose surface density is constrained by deep X-ray
surveys. We suggest that either the cosmic X-ray background is unusually high
in the direction of Sombrero, or a distinct population of X-ray sources is
present in the halo of Sombrero.Comment: 11 figures, 5 tables, ApJ in pres
Performance of the CMS Cathode Strip Chambers with Cosmic Rays
The Cathode Strip Chambers (CSCs) constitute the primary muon tracking device
in the CMS endcaps. Their performance has been evaluated using data taken
during a cosmic ray run in fall 2008. Measured noise levels are low, with the
number of noisy channels well below 1%. Coordinate resolution was measured for
all types of chambers, and fall in the range 47 microns to 243 microns. The
efficiencies for local charged track triggers, for hit and for segments
reconstruction were measured, and are above 99%. The timing resolution per
layer is approximately 5 ns
Measurement of the Z/gamma* + b-jet cross section in pp collisions at 7 TeV
The production of b jets in association with a Z/gamma* boson is studied
using proton-proton collisions delivered by the LHC at a centre-of-mass energy
of 7 TeV and recorded by the CMS detector. The inclusive cross section for
Z/gamma* + b-jet production is measured in a sample corresponding to an
integrated luminosity of 2.2 inverse femtobarns. The Z/gamma* + b-jet cross
section with Z/gamma* to ll (where ll = ee or mu mu) for events with the
invariant mass 60 < M(ll) < 120 GeV, at least one b jet at the hadron level
with pT > 25 GeV and abs(eta) < 2.1, and a separation between the leptons and
the jets of Delta R > 0.5 is found to be 5.84 +/- 0.08 (stat.) +/- 0.72 (syst.)
+(0.25)/-(0.55) (theory) pb. The kinematic properties of the events are also
studied and found to be in agreement with the predictions made by the MadGraph
event generator with the parton shower and the hadronisation performed by
PYTHIA.Comment: Submitted to the Journal of High Energy Physic
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