38,444 research outputs found
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)
Aplicação do algoritmo SAFER para monitoramento da evapotranspiração nos Biomas brasileiros.
No full textO algoritmo SAFER (Simple Algorithm for Evapotranspiration Retrieving) foi usado para análises da evapotranspiração atual (ET) em larga escala, nas diferentes regiões e biomas no Brasil, através da união de sensoriamento remoto e uma rede de estações meteorológicas, para o ano de 2016. Variações nos valores da ET entre as regiões e biomas foram fortemente detectadas, com taxas médias diárias trimestrais acima 3,0 mm dia-1 na região Sul, com os limites superiores no bioma Pampa, e abaixo de 1,5 mm dia-1 na região Nordeste, com limites inferiores no bioma Caatinga. A modelagem com uso do produto reflectância do satélite MODIS em conjunto com dados climáticos interpolados apresentou aplicabilidade para monitoramento dos fluxos hídricos na escala espacial de 250 m sob distintas condições termo hídricas ao longo do ano.Publicado também em: TEIXEIRA, A. H. DE C.; LEIVAS, J. F.; TAKEMURA, C. M.; GARCON, E. A. M. Aplicação do algoritmo SAFER para monitoramento da evapotranspiração nos Biomas brasileiros. In: ENCONTRO DE RECURSOS HÍDRICOS EM SERGIPE, 23., 2021, Aracaju. Anais... Aracaju: ABRHidro, 2021. Disponível em: https://files.abrhidro.org.br/Eventos/Trabalhos/125/XIII-ENREHSE0068-1-20200306-091437.pdf
Omalodes (Omalodes) atacamanus Leivas & Degallier, sp. nov.
No full textOmalodes (Omalodes) atacamanus Leivas & Degallier sp. nov. Type locality. Chile, Província de Antofagasta, Taltal (Paposo). Type material. Holotype: (♂) [“ CHILE II REGION/Tal-Tal Paposo/ 24 Octubre 1997 /Leg. V.M. Diéguez M.” “ COLLECION /V.M. Diéguez M.” “ Omalodes /(Diplogrammicus)/ intermedius (Lewis, 1907) / Det. G. Arriagada 2001 ”] (MNHNC). Paratypes (15) (1 ♂) [“ CHILE III Región/Bahia Esmeralda/ 23.X. 1999 /leg. Guildo Castillo” “ Omalodes /(Diplogrammicus)/ intermedius (Lewis) / Det. G. Arriagada 2008 ”] (DZUP); same data and labels (1 ♀ MNHNC); (1 ♀ CHND); (1 ♀ VMDC); (1 ♂) [“ CHILE II REGION/Taltal/ 22.10.85 /leg. G. Arriagada” “ COLLECION /V.M. Diéguez M.” “ Omalodes / intermedius /G. ARRIAGADA DET. 1997 ”] (MNHNC); (1 ♀) [“ CHILE II REGION/Taltal/ 22.10.85 /leg. G. Arriagada” “ COLLECION /V.M. Diéguez M.” “ Omalodes / (Diplogrammicus)/ intermedius (Lewis, 1907) / Det. G. Arriagada 2001 ”] (MNHNC); (2 ♂) [“ CHILE II REGION/ Paposo/ 05.10.92 /leg. G. Castillo” “ COLLECION /V.M. Diéguez M.” “ Omalodes /(Diplogrammicus)/ intermedius (Lewis, 1907) / Det. G. Arriagada 2001 ”] (DZUP); (2 ♀) [“ CHILE II REGION/Tal-Tal Paposo/ 24.Octubre 1997 / Leg. V.M. Diéguez M.” “ COLLECION /V.M. Diéguez M.” “ Omalodes /(Diplogrammicus)/ intermedius (Lewis, 1907) / Det. G. Arriagada 2001 ”] (DZUP); (1 ♀) [“ CHILE II REGION/Tal-Tal Paposo/ 24.Octubre 1997 /Leg. V.M. Diéguez M.” “ COLLECION /V.M. Diéguez M.” “ Omalodes /(Diplogrammicus)/ intermedius (Lewis, 1907) / Det. G. Arriagada 2001 ”] (VMDC); (1 ♀) [“Taltal/S. la Quinta/ 5.10.1985 /Coll. M. Elgueta” “Bajo cactus/ Copiapoa cinerea ” “ COLLECIÓN MNHN / Chile - SANTIAGO” “ Omalodes /(Diplogrammicus)/ intermedius /(Lewis, 1907)/ Det. G. Arriagada 2001 ”] (MNHNC); (1 ♀) [“ Chile Atacama/Paposo/La Rinconada/ 10.10.1983 /leg. M. Elgueta” “ COLLECIÓN MNHN / Chile - SANTIAGO” “ Omalodes /(Diplogrammicus)/ intermedius /(Lewis, 1907)/ Det. G. Arriagada 2001 ”] (CEMT); (2 ♂) [“ Chile Anfogasta/Tatal/ 19.09.1957 /leg. G. Kuschel” “ COLLECIÓN MNHN / Chile - SANTIAGO” “ Omalodes /(Diplogrammicus)/ intermedius /(Lewis, 1907)/ Det. G. Arriagada 2001 ”] (MNHNC). Diagnosis. Frons flat (Fig. 2 D); marginal stria of prosternal lobe absent (Fig. 2 E, F); posterior margin of the elytra with longitudinal strioles (Fig. 3 E); lateral metaventral stria oblique; all tibiae with a row of setae on outer submarginal region (Fig. 3 B–D); profemora with sparse setae on the posterior surface (Fig. 2 E–F); propygidium and pygidium with punctuation similar to the dorsum (Fig. 3 E); 9 th tergite without lateral projections (Fig. 4 M). Description. Length (pronotum+elytra) 5.3–6.6 mm, elytral width (humeral region): 3.7–4.7 mm. Color dark or dark-brown. Body shape subrectangular, glabrous, covered by ground punctuation (Figs. 2 A–B). Frons and clypeus flat; frontal stria inwardly curved and usually complete; supraorbital stria usually absent or rudimentary; frontoclypeal suture weakly marked only laterally (Fig. 2 D); postoccipital stria complete not setose; fovea of postgena present. Antennal scape basally slender (Fig. 2 D) and with subrectangular elevation at the apical region (Fig. 2 D, see also Fig. 6 F); fifth and sixth segments of the funicle not expanded laterally; antennal club with pseudo-sutures slightly inwardly arcuate and with a distinct apical sensorial area. Palpifer maxillary with robust setae on the external margin and without setae on the internal margin; lacinial hook absent. Submentum subpentagonal and with long setae on the surface; anterior margin of the mentum medially emarginate. Prothorax FIGURE 4. Omalodes (Omalodes) atacamanus sp.nov., female terminalia (A–F) and male terminalia (G-N). A. Bursa copulatrix, common oviduct, spermatheca and spermathecal gland; B. Basal region of bursa copulatrix, spermatheca and spermathecal gland; C, Coxites in ventral view; D. Close of apex of the coxites in ventral view; E, Coxites in dorsal view; F, Coxites in lateral view; G. Aedeagus in dorsal view; H. Aedeagus in lateral view; I. Aedeagus in ventral view; J. 8 th tergite; K. 8 th sternite; L, Close of the apex of 8 th sternite, setae on the apex; M. 9 th and 10 th tergites; N. 9 th sternite. Scale: A, C, E–K, M, N (0.5 mm) and B, D, L (0.25 mm). with deep cavity to insert the antennal club; prosternal lobe not longer than 1 / 3 of the total length of the prosternum, anterior margin rounded or feebly truncated, marginal prosternal stria absent, lateral extension of the prosternal lobe without projections; lateral marginal prosternal stria weak and marked only next to procoxae; prosternal keel with transverse elevation medially (Figs. 2 E–F), anterior half with two parallel carinal prosternal striae, posterior margin acuminate (Fig. 2 E), posterior gland openings located below the lateral marginal striae (Fig. 2 E). Pronotum with lateral posterior extremity not rounded, posterior margin with obtuse angle (Fig. 3 A); marginal pronotal stria usually complete; lateral pronotal stria complete. Elytra with posterior and sutural regions not depressed; posteriorly emarginate (Figs. 2 A, C) and with longitudinal strioles; 1 st dorsal elytral stria complete, 2 nd dorsal elytral stria variable on its length, 3 rd dorsal stria short, not exceeding the anterior half of elytra, 4 th and 5 th dorsal striae variable on its length, sutural elytral stria absent (Fig. 2 A), inner subhumeral stria absent, outer subhumeral stria variable on its length, epipleural region with one stria not reaching the posterior margin. Mesoventrite, anterior margin strongly emarginate medially, laterally with shallow excavations for receiving the anterior trochanters; marginal mesoventral stria interrupted medially; discal mesoventral stria absent (Fig. 2 F). Metaventrite with lateral stria oblique, postmesocoxal stria absent (Fig. 2 B). Profemora with setae on the posterior surface (Figs. 2 E–F); all tibiae with a row of setae on outer margin and submarginal region (Figs. 3 B–D). Protibiae truncated with a weak emargination at apex; inner row of setae ending in an apical cluster (Fig. 3 B); tarsal cavity slightly sinuous; internal region of tarsal cavity with a differentiated sulcus with setae. Stria of 1 st visible abdominal sternite marked only laterally and sometimes rudimentary. Propygidium and pygidium with punctuation similar to the dorsum, the first one with punctuation slightly thicker on the sides (Fig. 3 E). Pygidium longer than half propygidium length and with regular punctuation (Fig. 3 E). Male terminalia. 10 th tergite cordiform and composed of two regions more sclerotized but sometimes with separation not clear; 9 th tergite without lateral projections (Fig. 4 M); 9 th sternite “U”-shaped (Fig. 4 N); 8 th sternite composed of two sclerites, with setae on the lateral-posterior region (Figs. 4 K–L); 8 th tergite with basal membrane attachment line, basal margin emarginate (Fig. 4 J). Aedeagus, basal piece about 1 / 3 parameres length, with a dorso-lateral projection, anterior margin in dorsal view strongly emarginate on the middle (Figs. 4 G, H). Parameres with posterior margin medially emarginate; in lateral view subcylindrical on anterior region (Fig. 3 H), posterior region slightly narrowed; ventrally fused on anterior region by a weakly sclerotized region, posterior region with setae, with the extremity rounded and oblique sides. Female terminalia. Spermatheca with constraining rings, longer than wide and inserted on the anterior extremity of bursa copulatrix (Figs. 4 A–B). Spermathecal gland connected at the base of spermatheca and bigger than it, duct of spermathecal gland with constraining rings (Figs. 4 A–B). Common oviduct inserted on the posterior region of the bursa (Fig. 4 A). Coxites without a subapical lateral projection next to the cavity for insertion of stylus; in lateral view with internal and external margins carinate (Figs. 4 C–E). Remarks. The frontal stria can be anteriorly discontinuous; supraorbital usually developed, but incomplete; frontoclypeal suture very discrete (imperceptible in some specimens). In the male, the suture between the prosternal keel and the lobe can have two glands opening at the middle (Figs. 2 E–F), but it is not consistent in the species; the carinal stria of the prosternal keel may vary in length. Pronotal marginal stria may be slightly interrupted in the middle of the anterior margin of pronotum. Between the first and third dorsal striae there may be several short and random striae; second elytral dorsal stria can be complete or absent on the posterior half or posterior third; fourth and fifth dorsal striae can be short or absent; outer subhumeral stria is usually discontinuous next to apical extremity of humeral stria. The sulcus on internal region of tarsal cavity can be formed by strong and close punctures. Geographic distribution. The new species is known only from the Antofagasta Province (Taltal, Paposo and Bahia Esmeralda) along the arid coastal region of Chile, in the Atacama biogeographic province (described by O’Brien 1971) which belongs to the South American Transition Zone (Morrone 2006; 2014). This zone is characterized by the overlapping areas of Neotropical and Andean biotic components. The Atacama biogeographic province has an entomological fauna related with that from Coquimbo (belonging to Central Chilean Subregion of Andean Region) (Morrone 2006). Several taxa of Magnoliophyta (plants), Arthropoda (including Coleoptera) and Vertebrata are reported as endemic to the Atacama province (Morrone 2014). Biology. The adults and larvae of Omalodes atacamanus sp. nov. were found within Copiapoa cinerea (Philippi) Britton & Rose (Plantae: Cactaceae) feeding on the larvae of Drosophilidae and Syrphidae (Volucella sp.) (Arriagada 1985; 1986, cited it as Omalodes (Diplogrammicus) intermedius Lewis). All specimens were collected in September and October in the BWk region (cold desert) where the mean annual temperature is <18 °C (Peel 2007). Living in cold desert environments in South America appears to be a unique feature of Omalodes atacamanus sp. nov. among the Omalodini, since other species of Omalodes and Ebonius occupy tropical and subtropical areas, with only a few species of Omalodes found in xeric areas in New Mexico and Arizona (USA) (Kovarik & Caterino 2001). The presence of setae on the outer submarginal region of anterior, middle and hind tibiae, as well as on the surface of the femur represent possible adaptations to sandy environments in order to increase the surface of contact of the beetle's body with the sand, and thus assist in the vertical movement in sandy soil. Etymology. The species’ name refers to the desert region of Atacama, where this species has been found.Published as part of Leivas, Fernando W. T., Degallier, Nicolas & Almeida, Lúcia M., 2015, New species of Omalodes and redefinition of the tribe Omalodini (Coleoptera: Histeridae: Histerinae), pp. 109-119 in Zootaxa 3925 (1) on pages 111-116, DOI: 10.11646/zootaxa.3925.1.7, http://zenodo.org/record/23679
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
Efficacia acuaretica del agonista del receptor kappa opioide RU 51599 en ratas cirroticas
No full textFIGURE 6 in Two new species of Omalodes from Dominican Republic (Coleoptera: Histeridae)
No full textFIGURE 6. Details of external morphology of Omalodes (Omalodes) kovariki sp. nov. A. glandular opening in the first visible abdominal sternite in ventral view, posterad to metacoxae; B. elytra, complete apical striae.Published as part of Moura, Daniel P., Leivas, Fernando W. T. & Caneparo, Maria F. C., 2016, Two new species of Omalodes from Dominican Republic (Coleoptera: Histeridae), pp. 209-217 in Zootaxa 4078 (1) on page 214, DOI: 10.11646/zootaxa.4078.1.19, http://zenodo.org/record/27084
Water balance indices for tropical wine grapes.
No full textOver the last few decades, the Brazilian semiarid region has appeared as one of the main tropical wine production areas in the country. The aim of this research was the elaboration and application of water balance indices to upscale them in the wine grape growing regions of the Petrolina and Juazeiro counties in the states of Pernambuco (PE) and Bahia (BA), respectively, simulating different pruning dates along the year. Previous energy balance measurements were used for relating the crop coefficient (Kc) with the accumulated degree-days (DDac). The model was applied to upscale the water balance indices during the growing seasons (GS). It was concluded that if irrigation water is available, the best pruning periods are for GS from May to July because of better natural thermal and moisture conditions. Much care should be taken for pruning done in other periods of the year, with regard to the effect of increasing thermal conditions on wine quality. The classifications and delimitations done, joined with other environmental characteristics, are important for a rational planning of the commercial tropical wine production expansion, mainly in the actual situations of climate and land use changes together with rising water competition along the years in the Brazilian semiarid region
Measurement of the CP-violating phase \phi s in Bs->J/\psi\pi+\pi- decays
No full textMeasurement of the mixing-induced CP-violating phase phi_s in Bs decays is of prime importance in probing new physics. Here 7421 +/- 105 signal events from the dominantly CP-odd final state J/\psi pi+ pi- are selected in 1/fb of pp collision data collected at sqrt{s} = 7 TeV with the LHCb detector. A time-dependent fit to the data yields a value of phi_s=-0.019^{+0.173+0.004}_{-0.174-0.003} rad, consistent with the Standard Model expectation. No evidence of direct CP violation is found
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
K. F. C. Rose, The date and author of the Satyricon, with an introduction by J. P. Sullivan, 1971
No full textRastier Françoise. K. F. C. Rose, The date and author of the Satyricon, with an introduction by J. P. Sullivan, 1971. In: Revue des Études Anciennes. Tome 74, 1972, n°1-4. pp. 300-303
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