32,498 research outputs found
V Curso de Especialização em Administração Fazendária
No full text1 fôlder (4 p.) : p&b ; 14 x 21 cmFôlder de divulgação do "V Curso de Especialização em Administração Fazendária (CEFAZ)", oferecido pela Escola de Governo de Minas Gerais da Fundação João Pinheiro (FJP), do dia 09 de agosto a dezembro de 1996 em Belo Horizonte (MG)
Dataset for Spontaneous natural optical activity in disordered media
No full textDataset supports:
Pinheiro, F. A., Fedotov, V. A., Papasimakis, N., & Zheludev, N. I. (2017). Spontaneous natural optical activity in disordered media. Physical Review B.</span
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Measurement of the ratio of branching fractions B(B0→K∗0γ )/B(B0s→φγ ) and the directCP asymmetry inB 0→K∗0γ
No full textThe ratio of branching fractions of the radiative B decays B0→K⁎0γ and B0s→ϕγ has been measured using an integrated luminosity of 1.0 fb−1 of pp collision data collected by the LHCb experiment at a centre-of-mass energy of s√=7TeV. The value obtained is
B(B0→K⁎0γ)B(B0s→ϕγ)=1.23±0.06(stat.)±0.04(syst.)±0.10(fs/fd),
where the first uncertainty is statistical, the second is the experimental systematic uncertainty and the third is associated with the ratio of fragmentation fractions fs/fd. Using the world average value for B(B0→K⁎0γ), the branching fraction B(B0s→ϕγ) is measured to be (3.5±0.4)×10−5.
The direct CP asymmetry in B0→K⁎0γ decays has also been measured with the same data and found to be
ACP(B0→K⁎0γ)=(0.8±1.7(stat.)±0.9(syst.))%.
Both measurements are the most precise to date and are in agreement with the previous experimental results and theoretical expectations
Branching fraction and CP asymmetry of the decays B+→K0Sπ+ and B+→K0SK+
No full textAn analysis of B+ → K0
Sπ+ and B+ → K0
S K+ decays is performed with the LHCb experiment. The pp
collision data used correspond to integrated luminosities of 1 fb−1 and 2 fb−1 collected at centre-ofmass
energies of
√
s = 7 TeV and
√
s = 8 TeV, respectively. The ratio of branching fractions and the
direct CP asymmetries are measured to be B(B+ → K0
S K+
)/B(B+ → K0
Sπ+
) = 0.064 ± 0.009 (stat.) ±
0.004 (syst.), ACP(B+ → K0
Sπ+
) = −0.022 ± 0.025 (stat.) ± 0.010 (syst.) and ACP(B+ → K0
S K+
) =
−0.21 ± 0.14 (stat.) ± 0.01 (syst.). The data sample taken at
√
s = 7 TeV is used to search for
B+
c
→ K0
S K+ decays and results in the upper limit ( fc · B(B+
c
→ K0
S K+
))/( fu · B(B+ → K0
Sπ+
)) <
5.8 × 10−2 at 90% confidence level, where fc and fu denote the hadronisation fractions of a ¯b
quark
into a B+
c or a B+ meson, respectively
Observations of Bºs→ψ(2S)η and Bº(s)→ψ(2S)π+π- decays
No full textFirst observations of the B0s
→ψ(2S)η, B0 →ψ(2S)π
+
π
− and B0s
→ψ(2S)π
+
π
− decays are made
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
√
s = 7 TeV. The ratios of the branching fractions
of each of the ψ(2S) modes with respect to the corresponding J/ψ decays are
B(B0s
→ψ(2S)η)
÷
B(B0s
→J/ψη)
= 0.83± 0.14 (stat)±0.12 (syst) ±0.02 (B),
;
B(B0→ψ(2S)π
+
π
−
)
÷
B(B0→J/ψπ
+
π
−
)
= 0.56± 0.07 (stat)±0.05 (syst)± 0.01 (B),
;
B(B0s
→ψ(2S)π
+
π
−
)
÷
B(B0s
→J/ψπ
+
π
−
)
= 0.34± 0.04 (stat)±0.03 (syst)± 0.01 (B),
where the third uncertainty corresponds to the uncertainties of the dilepton branching fractions of the J/ψ
and ψ(2S) meson decays
Galethalea machadoi Pinheiro, 2016, sp. nov.
No full text<i>Galethalea machadoi</i> sp. nov. <p>(Figures. 4, 20–23)</p> <p> <b>Holotype</b> male, ECUADOR, Zamora-Chinchipe, Rio San Francisco, Estación Científica San Francisco T1-11(18), 3°58'S, 79°04'W, 2675 m, 23.x.2000, LF II 19:00–19:30 (G. Brehm); SMNS - Lep 2001-06. Dissection number 3417 (L. Pinheiro), kept in vial (SMNS). <b>Five paratypes.</b> ECUADOR: Zamora-Chinchipe, Rio San Francisco, Estación Científica San Francisco, SW1(7), 3°58'S, 79°04'W, 1920 m, 3.xi.2002, LF I 18:45–19:15 (N. Hilt & C. Schulze) (SMNS), 1 male; same, SW2(9), 1900 m, 13.iv.2002, LF VI 21:15–21:45 (N. Hilt & D. Fetting) (SMNS), 1 male; same, SG1(8), 1912 m, 23.x.2003, LF I 18:45–19:15 (N. Hilt & C. Ramenda) (SMNS), 1 male; same, SW2(9), 1900 m, 13.iv.2002, LF II 19:15–19:45 (N. Hilt & D. Fetting) (SMNS), 1 male; same, GL1(11), 1863 m, 3.ix.2003, LF VI 21:15–21:45 (N. Hilt & C. Ramenda) (SMNS), 1 male.</p> <p> <b>Diagnosis ♂.</b> Antennae black, except for the anterior and inner surface of the scape, white. Frontoclypeus almost entirely black. Mesoscutellum with one white area. Metascutellum black. FW predominantly black, with various white spots. HW with a very small hyaline area. T8 black.</p> <p> <b>Description ♂. Head.</b> Proboscis light brown. Palpi three segmented, reaching vertex. First two segments black. Third segment twice as long as wide, black, except for the apical surface, white. Antennae black, except for the scape and pedicel, with few white scales anteriorly. Pectination starting in the second flagellomere. Frontoclypeus almost as wide as long, black. Vertex black with few white scales at its anterior margin. Occiput and ocular ring black. Cervical scales orange. <b>Thorax</b>. Mesothorax predominantly black, with a white medial area. Metascutellum black. Patagia black, with a white spot near the external margin. Tegulae predominantly black, with white scales at the anterior margin and medially. Epimera and episterna with long black scales. Ventral surface of the forecoxae black proximally and white distally. Lateral surface black. Forefemora black with a white midventral spot and white proximal margin. Foretibiae and tarsi black with white distal ends. Midcoxae white anteriorly and laterally. Midfemora black, except for the proximal and distal margins, and for a small mid-ventral spot, white. Midtibiae black with white proximal and distal margins, spurs either black or white. Midtarsi black with white distal ends, sometimes with the second segment also white at the distal end. Hindlegs as midlegs. <i>FW</i>. Entirely scaled. Axillary scales white. Dorsal surface predominantly covered by black scales. Pattern of the dorsal surface of the forewings consisting of various white spots. Fringe of the external margin with black scales, except for the area corresponding to cell CuA2-CuP and for the apex, with white scales. Pattern of the ventral surface simpler than that of the dorsal surface, composed of black scales and fewer white areas than the dorsal surface. Venation as in <i>G. wolfei</i> <b>sp. nov.</b> <i>HW.</i> Margins and veins with black scales, part of the central portion hyaline, with the hyaline portion bearing very small setae. Discal cell predominantly hyaline, a small area at the distal portion of the posterior half with sparsely distributed scales. Proximal portions of cells M2-M3, M3-CuA1, and CuA2-CuP also with sparsely distributed scales. Proximal half of cell CuP-1A hyaline. Cell 1A-2A densely scaled, except for the region adjacent to vein 1A, sparsely scaled. Venation also as in <i>G. wolfei</i> <b>sp. nov. Abdomen.</b> T1–2 and T8 black. T3–7 predominantly black, with two latero-posterior orange spots. Hair-like scales on T1–4. S2–7 whitish ventrally and black laterally; S8 black. Coremata present on ventral intersegmental membrane 7–8. Anterior margin of T8 with two small sacular projections. <b>Male genitalia.</b> Ejaculatory duct longer than aedoeagus, inserted dorsally. Coecum rounded. Aedoeagus straight, approximately the same width throughout. Vesica slightly shorter than aedoeagus when fully everted, mostly membranous. Posterior region of vesica with a small sclerotized area and tiny cornuti. Saccus developed, slightly asymmetrical; posterior margin somewhat pointed. Tegumen composed of two oblique plates connected by the posterior margin. Two dorsal, glabrous, heavily sclerotized projections arising near the base of the uncus, with pointed apex and situated between the lobe of the uncus in ventral view. Base of the uncus sclerotized, with few setae, much wider than its lobe, which is short and turned ventrally. Valvae bilobed, asymmetrical, the right valve exceeding uncus, and the left valve reaching it. In both valvae, ventral lobe more sclerotized and longer than the dorsal lobe. Inner surface of each valve with a filiform projection. Ventral surface of both valvae densely covered by setae, dorsal suface with much less setae. Transtilla approximately as sclerotized as the juxta.</p> <p> <b>Etymology.</b> This species is dedicated to Dr. Angelo B. M. Machado on the occasion of his 80th birthday.</p> <p> <b>Remarks.</b> <i>Galethalea machadoi</i> <b>sp. nov.</b> is similar to <i>G. d a v i d i</i> Dognin, 1889, which also has Ecuador as its type locality. The main external differences between <i>G. machadoi</i> <b>sp. nov.</b> and <i>G. davidi</i> are the proximal brown markings in the forewings, more extensive in <i>G. machadoi</i> <b>sp. nov.</b> than in <i>G. d a v i d i</i>, and the hindwings, more brown in the former around the edges of the wings. The genitalia of both species are quite distinct, the most remarkable differences being the densely setose dorsal projections in <i>G. d a v i d i</i> and the asymmetrical valvae in <i>G. machadoi</i> <b>sp. nov.</b></p>Published as part of <i>Pinheiro, Lívia R., 2016, Description of three new species of Galethalea Butler, 1876 (Lepidoptera: Erebidae), with comments on the genus, pp. 354-365 in Zootaxa 4078 (1)</i> on pages 362-364, DOI: 10.11646/zootaxa.4078.1.30, <a href="http://zenodo.org/record/264995">http://zenodo.org/record/264995</a>
Measurement of b-hadron masses
No full textMeasurements of b-hadron masses are performed with the exclusive decay modes B +→J/ψK +, B 0→J/ψK +, B0→J/ψKS0, Bs0→J/ψφ and Λb0→J/ψΛ using an integrated luminosity of 35pb -1 collected in pp collisions at a centre-of-mass energy of 7 TeV by the LHCb experiment. The momentum scale is calibrated with J/ψ→μ +μ - decays and verified to be known to a relative precision of 2 ×10 -4 using other two-body decays. The results are more precise than previous measurements, particularly in the case of the Bs0 and Λb0 masses
Amphimedon estelae Santos, Docio & Pinheiro, 2014, sp. nov.
No full text<i>Amphimedon estelae</i> sp. nov. <p>(Figures 1–3; Tables 1–2)</p> <p> <b>Type Locality:</b> Brazil, Bahia State, Maraú, Taípus de Fora (near Camamu Bay).</p> <p> <b>Type Specimens: Holotype—</b> UFPEPOR 695, Taípus de Fora (13º53’49”S, 38º55’45”W), Maraú (near Camamu Bay), Bahia State, Brazil, intertidal 0.5 m depth, col. U. Pinheiro, 25.XI.2007. Paratype—UFPEPOR 689, Taípus de Fora (13º53’49”S, 38º55’45”W) Maraú (near Camamu Bay), Bahia State, Brazil, intertidal 0.5 m depth, col. U. Pinheiro, 20.V.2007.</p> <p> <b>Diagnosis.</b> <i>Amphimedon estelae</i> <b>sp. nov.</b> is the only <i>Amphimedon</i> in the Atlantic with strongyles, styles or oxeas covered by lumped swellings.</p> <p> <b>External morphology of holotype</b> (Fig. 2 A). Massive with volcano-shaped oscular projections, 2 x 1.6 cm (height x length). Surface punctate due to regularly distributed subdermal cavities, microconulose. Oscules circular, 5 mm in diameter. Ectosome a translucent membrane, not easily detachable. Consistency firm and relatively compressible, but difficult to tear. Color in life is dark green, turning beige after preservation in ethanol 80%.</p> <p> <b>Paratype.</b> Massive, 3.5 x 1 cm (height x length). Consistency firm. Color in life is dark green, turning beige after preservation in ethanol 80%.</p> <p> <b>Specimens Color in life Spicules Skeleton.</b> The ectosomal skeleton consists of an irregular paratangential reticulation of uni-paucispicular (Fig. 2 B). Producing rounded meshes (150–500 Μm in diameter), covered by a fine membrane, which is lost in preserved specimens. Rounded meshes (240–750 µm in diameter) parallels to the surface (subectosomal), which may be poorly defined or masked by abundant free spicules (Fig. 2 C–D). Choanosomal skeleton is isotropic in some parts with multispicular tracts (36–100 µm in diameter), these being regularly distributed and cored by 6–20 spicules. Spongin not abundant, but always present cementing tracts and joining free spicules (Fig. 2 D).</p> <p> <b>Spicules</b> (Figure 3; Table 1–2). Three categories of spicules were observed: (1) Strongyles (89%) can also vary in styles (7%) and oxeas (4%) with just one category of size (115–154 / 6–9 µm). Theses spicules show surfaces lumped swellings, generally in the middle region, but sometimes occur near the tips (Fig. 3 A–B). Few spicules do not have surface with lumped swellings. (2) Oxeas smooth, robust, straight to slightly curved (158–184 / 7–11 µm) were observed. Tips short and sharp (Fig. 3 C).</p> <p>(3) Thin oxeas smooth, slender, slightly curved and pointed at both tips were observed (100–153 / 1–1.6 µm). The finest oxeas are raphidiform (Fig. 3 D).</p> <p>References: (1) Pulitzer-Finali (1986); (2) Verrill (1907); (3) van Soest (1980); (4) Hartman (1955); (5) Duchassaing & Michelotti (1864); (6) Cuartas (1988); (7) Wilson (1902);</p> <p>) Dendy (1887); (9) Muricy & Hajdu (2006); (10) Muricy <i>et al</i>. (2011); (11) Hechtel (1965); (12) Campos <i>et al.</i> (2005); (13) Goodwin <i>et al.</i> (2011). * In <i>Amphimedon estelae</i></p> <p>. <b>nov.</b> the strongyle can vary also in styles and oxeas.</p> <p> <b>Ecology.</b> The species is sciophilous and was collected at 0.5–1 m deep.</p> <p> <b>Distribution</b> (Fig. 1). Northeastern coast of Brazil, Bahia State, Brazil. The distributions of others species of <i>Amphimedon</i> from Brazilian coast are available in Muricy et al (2011)</p> <p> <b>Etymology.</b> The chosen specific name honors the senior author’s wife Maria Estela de Souza Alagão.</p> <p> <b>Remarks.</b> <i>Amphimedon estelae</i> sp. nov. differs from all other species of the genus because it is the only that has one category of spicules with surfaces lumped swellings, varying among strongyles, styles and oxeas (see Table 2, Fig. 3). Among the five species recorded for the Brazilian coast, <i>A. viridis</i> is the most similar to <i>A. estelae</i> sp. nov. in the spicules size (see Table 2), color green and massive shape. The new species differs from <i>A. viridis</i> in the skeleton: <i>A. estelae</i> sp. nov. presents ectossomal skeleton with paratangential reticulation of uni-paucispicular tracts against the ectosomal skeleton with a tangential reticulation of multispicular tracts of <i>A. viridis</i> (Pinheiro <i>et al.</i> 2005). However, the principal difference between the species is the type of spicules. Despite <i>A. viridis</i> be one of the most known species of the Brazilian cost and Caribbean (Zea 1987; Muricy & Ribeiro 1999; Pinheiro <i>et al.</i>, 2005; Muricy & Hajdu 2006; Moraes 2011; Muricy <i>et al.</i> 2011), it always had only oxeas and never was record strongyles and styles for this species or the presence of spicules with surface lumped swellings.</p> <p> Other species whose oxeas have lumped swellings is <i>Dendroxea adumbrata</i> Corriero, Scarela Liace & Pronzato (1996) from Mediterranean Sea. The authors used this characteristic as main diagnostic character of this species. Despite ecophenotypic variation had seen in the spicules of marine sponges (e.g. Uriz 1983; Uriz <i>et al</i>. 2003), nobody indicated the spicules with surface lumped swellings as consequence of silica concentration ranges in the environment. Finally, other sponges collected in the same locality of <i>A. estelae</i> <b>sp. nov.</b> did not present modifications in its spicules. Thus, we believe that the spicule with surface lumped swellings is a reliable character. De Laubenfels (1956) recorded <i>A. erina</i> to São Paulo State (Brazil) without describing it. However, this species never been collected again, even after several studies carried out in this region (e.g. Muricy & Ribeiro 1999; Santos & Hajdu 2003; Pinheiro <i>et al.</i> 2005). We believe that the specimen reported by De Laubenfels is <i>A. viridis</i>, which is very common in the region, here synonymized. It is plausible that <i>A. erina</i> be a junior synonym of <i>A. viridis</i> requiring further studies for confirmation (Alcolado 1984; Zea 1987; Muricy & Ribeiro 1999; Muricy <i>et al.</i> 2011). <i>Amphimedon caribica</i> was recorded in Brazil by Campos <i>et al.</i> (2005) from Maranhão State. However, when we compared to the original description (Pulitzer-Finali 1986: 170) and this record differs in the shape of spicules, as well as the dimensions. Spicules vary between oxeas and styles with mucronate tips in Brazilian material, which are different from those present in Puerto Rican material, because the latter has only oxeas with simple tips. In addition, spicules of Caribbean material are larger and thicker (Tab. 2). Thus, we consider invalid the report <i>A. caribica</i> for Brazil, which requires a review to define the taxonomic status of these specimens.</p> <p> Sarmento & Correia (2002) made the only record of <i>Amphimedon complanata</i> for Brazil (from Alagoas State), providing a list of species. This material was revised and identified as <i>Halichondria</i> sp. (Hajdu E. pers. com.) therefore we also invalidate this record.</p> <p> <i>Amphimedon compressa</i> from Virgin Islands differs of new species by presents ramose to flabelliform shape, dark red color, surface smooth and, small oxeas (Tab. 2). In addition, <i>A. compressa</i> has skeleton like <i>A. viridis</i> with multispicular tracts against uni-paucispicular tracts of <i>A. estelae</i> <b>sp. nov.</b> According Moraes (2011), the skeleton characteristics of Brazilian specimens of <i>A. compressa</i> were not different from the Caribbean specimens. However, no ramose specimens were found in Brazil and the spicules size of Brazilian specimens was lower than Caribbean specimens. A systematic study with revision of Brazilian populations is necessary to confirm the co-specific status between both populations.</p> <p> Thus, only three valid species are considered to occur in Brazil: <i>Amphimedon estelae</i> <b>sp. nov.</b>, <i>A. compressa</i> and <i>A. viridis.</i></p>Published as part of <i>Santos, George Garcia, Docio, Loyana & Pinheiro, Ulisses, 2014, Two new species of the family Niphatidae van Soest, 1980 from Northeastern Brazil (Haplosclerida: Demospongiae: Porifera), pp. 265-274 in Zootaxa 3774 (3)</i> on pages 266-270, DOI: 10.11646/zootaxa.3774.3.3, <a href="http://zenodo.org/record/225014">http://zenodo.org/record/225014</a>
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)
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