71,871 research outputs found
Asca nelsoni Beard, Ochoa & Vega 2011
No full textAsca nelsoni Beard , Ochoa & Vega, 2011 Asca nelsoni Beard, Ochoa & Vega, 2011: 8. TYPE DEPOSITORY: International Coffee Germplasm Centre, Centro Agronómico Tropical de Investigación y Enseñanza, Turrialba, Costa Rica; accession number T.01997. TYPE LOCALITY AND HABITAT: Cartago, Turrialba, Costa Rica, in domatia on leaves of Coffea arabica [Plantae: Rubiaceae].Published as part of De Moraes, Gilberto J., Britto, Erika P. J., Mineiro, Jefferson L. De C. & Halliday, Bruce, 2016, Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata), pp. 1-299 in Zootaxa 4112 (1) on page 101, DOI: 10.11646/zootaxa.4112.1.1, http://zenodo.org/record/39947
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
Letter from Carl Hayden to P. J Moran
No full textLetter from Carl T. Hayden to P. J. Moran concerning the alignment of the road to Bright Angel Trail
Letter from P. J. Moran to Carl Hayden
No full textLetter from P. J. Moran to Carl T. Hayden inquiring when construction will begin on the approach road to Bright Angel Trail
Letter from P. J. Moran to Carl Hayden
No full textLetter from P. J. Moran to Carl T. Hayden inquiring when construction will begin on the approach road to Bright Angel Trai
Telegrams Between Carl Hayden to P. J. Moran, Democratic County Central Committee
No full textTelegram from Carl Hayden to P. J. Moran regarding the resignation of W. W. Crosby and his replacement J. R. Eakin
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Cyperacarus foliatus Beard & Ochoa, 2011, sp. nov.
No full textCyperacarus foliatus sp. nov. Beard & Ochoa (Figs 20–21) Types. Holotype. Ƥ. Australia, Queensland, Hook Point to Dilli Village Road, Great Sandy National Park, Fraser Island, 25 ° 41 ’ 46 ” S 153 °04’ 22 ” E, 02.ix. 2004, ex. red-fruited saw sedge Gahnia sieberiana Kunth. var. sieberiana (Cyperaceae) (BRI voucher PIF 30171), J.J. Beard & P.I. Forster (QM, UQIC # 59686). Diagnosis. Adult female (Figs 20–21). As per genus, in addition to: setae c 1 and d 1 minute, smooth; dorsal lateral opisthosomal setae broad. Male unknown. Immatures. Unknown. Adult female. (1 measured) Dorsum. (Fig. 20) Body measurements: v 2 –h 1 286 (tip of anterior projection to h 1 324), sc 2 –sc 2 91, c 3 –c 3 108, f 2 –f 2 56. Dorsal cuticle mostly smooth, with few transverse grooves and folds between setae sc 2 and c 1. Dorsal shield or dorsal thickening evident, marked laterally by a change in cuticle. Anterior margin of prodorsum with three projections—a broad, rounded central projection, flanked by two smaller lateral projections each bearing setae v 2. Lateral setae sc 1, c 3, d 3, e 3, f 2 inserted on rounded tubercles. Setae sc 1, h 2 elongate, barbed with minute distal club; c 1, d 1, h 1 minute; all other dorsal setae broad, dorsoventrally flattened, with strong lateral barbs; dorsal surface of setae finely spiculate, ventral surface smooth: v 2 25 – 27, sc 1 242 – 258, sc 2 34 – 35, c 1 4, c 3 32 – 33, d 1 4, d 3 35 – 37, e 3 37, f 2 36, h 1 2 – 3, h 2 173 – 176. Gnathosoma. (Fig. 20) Gnathosoma extends to middle of genu I. Dorsal cuticle with longitudinal plicae; ventral cuticle finely papillate medially; longitudinal plicae between setae 1 b– 1 a. Ventral setae m absent. Palps 3 -segmented; 0, 2, 0(2); tibia with two setae (d 14, v 10 – 11); tarsus with two eupathidia (8 – 9; 4). Cheliceral stylet length from curve of hook to anterior tip 107. Venter. (Fig. 21) Cuticle completely plicate, covered with fine, transverse plicae between setae 1 a–g 2; some anterior longitudinal plicae between setae 1 b– 1 a; plicae on genital flap transverse, arching anteriorly around setae g 1 –g 2. Setae g 1 inserted in an anterior position to g 2 on genital flap. All setae fine, smooth; setae 1 a, 1 b, 4 a 1, 4a2 elongate, fine (difficult to consistently determine full length). Setal measurements: 1a 56 – 72, 1 b 50, 2 b 14 – 18, 2 c 17 – 20, 3 a 20 – 24, 3 b 13 – 16, 4 a 1 78, 4 a 2 71, 4 b 16 – 18, ag 12 – 17, g 1 14 – 17, g 2 19 – 21, ps 1 9 – 10, ps 2 7 – 8. Spermatheca. (Fig. 21) Cylindrical vesicle (14). Legs. (Fig. 20) Setal formulae for legs I – IV: 1 - 0-3 - 0-5 - 7 (1), 2 - 0-3 - 0-5 - 7 (1), 1 - 0-2 - 0-3 - 3, 1 - 0-2 - 0-3 - 3 respectively. Tarsi I and II each with one short antiaxial solenidion ω ’ (4, 3 respectively) and two distal eupathidia p ζ ’- p ζ ’’ (7 – 8, 6 – 7; 7 – 8, 6 – 7 respectively); ta I – IV with u’-u’’ asymmetrically barbed. Colour. This species is orange with small black spots internally (presumed to be food in gut). Male. Unknown. Remarks. As only one specimen is known for this species, the true range and variability of measurements remains unknown. The tip of the spermathecal apparatus is truncate and presumed to be damaged. Etymology. The masculine Latin word “ foliatus ” means “leafy” and refers to the leaf-like setae on the opisthosoma of this species.Published as part of Beard, Jennifer J. & Ochoa, Ronald, 2011, New flat mite genera (Acari: Trombidiformes: Tenuipalpidae) associated with Australian sedges (Cyperaceae), pp. 1-37 in Zootaxa 2941 on pages 29-32, DOI: 10.5281/zenodo.20468
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
Seed dispersal by dispersing juvenile animals: A source of functional connectivity in fragmented landscapes
No full textSpanish MINECO (CGL2017-82847-P); Severo Ochoa Award for Centres of Excellence in R þ D þ I (SEV-2012-0262) and a postdoctoral fellowship from the Severo Ochoa Program awarded to J.P.G.-V. (SEV-2012-0262); Spanish ‘Ramon y Cajal’ fellowship (RYC-2017-22095
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