31,959 research outputs found
Fig. 3 in Communities Of Ditylenchus Destructor Satellite Species Of Nematodes In Infected Potato Tubers: Species Composition Of Phytonematode Complex And The Structure Of Their Infracommunities
No full textFig. 3. The dynamics of the ratio of the total number of various trophoecological group nematodes during the disease of potato tubers caused by D. destructor.Published as part of Sigareva, D. D., Fedorenko, S. V., Bondar, T. I., Sokolova, O. O. & Kornyushin, V. V., 2019, Communities Of Ditylenchus Destructor Satellite Species Of Nematodes In Infected Potato Tubers: Species Composition Of Phytonematode Complex And The Structure Of Their Infracommunities, pp. 443-458 in Vestnik Zoologii 53 (6) on page 448, DOI: 10.2478/vzoo-2019-0040, http://zenodo.org/record/645535
Bondariella mimica Hustache & Bondar 1942
No full textBondariella mimica Hustache & Bondar, 1942 (Figs. 2 A, 3 H–I, 7) Bondariella mimica Hustache & Bondar, 1942: in Bondar 1942: 21; Bondar 1943: 370 (natural history); Vaurie 1953: 26 (lectotype designation); Wibmer & O’Brien 1986: 316 (catalogue). Male (Figs. 2 A, 7). Length of pronotum + elytra: 2.1–2.4mm (N= 10). Integument (Fig. 2 A) dark reddish brown; thorax, head and rostrum reddish black; elytra generally darker on sutural interval and/or with a darker oval spot on basal 1 / 4 of intervals I–IV; covered by large yellowish spatulate scales. Rostrum (Fig. 2 A) 0.9 times as long as pronotum, curved in lateral view. Antennae: antennal insertion premedian (0.4); scape 1.8 times as long as article I of funicle. Pronotum 1.2–1.4 times wider than long; disc with large and closely spaced punctures (distant by 0.5 times their own diameter); scales subequal in length throughout; median line not evident; collar not evident. Interprocoxal distance slightly shorter (0.9 times) than procoxal diameter. Femora and tibae lacking comb of setae. Elytra 1.3–1.4 times longer than wide; 2.2–2.4 times as long as pronotum; sutural interval with two rows of scales; remaining intervals with 2–3 rows of scales on base, becoming variously two rows toward apex. Abdominal tergites (Fig. 7 A): laterotergites subdivided into four smaller sclerites; median fissure complete, reaching distal margin of tergite IV; tergite IV with lateral and median spiculate patches on median sclerites; tergite VII with two rows of plectra, each with seven distantly spaced plectra. Ventrites (Fig. 7 B): I–II combined 2.0– 2.3 times as long as III–IV combined; ventrite I 1.2–1.3 times as long as ventrite II; ventrite V transversally oblong, 3.3–3.5 times wider than long, flat, distal margin rounded, lacking tufts of scales. Sternum VIII (Fig. 7 C): each sclerite semicircular, with six posteroventral setae. Spiculum gastrale (Fig. 7 D) 2.0 times as long as median lobe; stylus curved and moderately wide; furcal arms sclerotized, elongate, narrowed, not clavate, slightly asymmetrical. Tegmen (Fig. 7 E) sclerotized, 1.8 times as long as median lobe; dorsal parameroid lobes free (not connected medially on base), each parameroid lobe 0.6 times as long as median lobe, clothed with long setae on distal 1 / 3; ventral tegminal apodeme 0.8 times as long as median lobe, narrowed, elongate and reflexed dorsally. Aedeagus (Fig. 7 F): median lobe elongate and narrow, 2.5 times longer than wide; apex rounded; lateral margins narrow; sides parallel; endophallus membranous, clothed with sparse spinules, lacking membranous bags of spinules; ostium evident, distal; orificial plates larger, subtriangular. Apodemes of aedeagus 1.7 times as long as median lobe, not sclerotized on basal ¼. Female (Fig. 2 A). Length of pronotum + elytra: 2.2–2.5mm (N= 10). Differs from male by generic characters of the rostrum, scrobe, antennal scape, interocular distance and ventrite II (cited above). In addition, by rostrum (Fig. 2 A) reddish brown, strongly curved; scrobe 0.2 times as long as rostrum; antennal insertion basal (0.1 times); scape shorter than article I of funicle (0.7 times). Body part ratios. Length rostrum/length pronotum: 0.8– 0.9 times; pronotum width/length: 1.4 times; elytron length/width: 1.3–1.5 times; length elytron/length pronotum: 2.2–2.4 times; interprocoxal distance/procoxal diameter: 0.9 times; length ventrite I/length ventrite II: 1.1–1.3 times; length ventrites I+II/length ventrites III+IV: 2.1–2.2 times; ventrite V width/length: 3.0– 3.3 times. Etymology. Named by Bondar (1942) in accordance to the names, Bondariella and Nicentrus mimicus (nomen nudum), suggested by Hustache (see introduction for details). The specific epithet mimica is adjective (feminine singular) from Latin (mimicus) signifying “imitative”. Remarks. Bondariella mimica (Fig. 2 A) is distinguished from other species of Bondariella by the body covered by large yellowish spatulate scales and the integument dark reddish brown, with thorax and head reddish black. Bondariella mimica can be similar to specimens of B. mucugeana with lighter integument but they can be distinguished each other by the characters discussed on remarks of B. mucugeana, besides in B. mimica lacking membranous bags of the spinules in the endophallus (Fig. 7 F) and the elytra have a discrete darker oval basal spot (Fig. 2 A). Finally, B. mimica has only been collected from Syagrus schizophylla while the remaining species of the genus have been collected from different palm species. Natural history. Bondariella mimica is recorded from the Atlantic Forest biome, from Salvador, Bahia, Brazil. As spelled in labels of the specimens, “Bahia, Bahia” means “ Salvador, Bahia”. Adults and larvae were collected on male flowers of Syagrus schizophylla, locally known as “licurioba” (Bondar 1942, 1943, cited as Cocos schizophylla Mart.). Also adults mate, and larvae and adults feed and complete their life cycle between petals of male flowers from open inflorescences of S. schizophylla (Bondar 1942, 1943). Bondar was able to rear larvae of B. mimica in the laboratory, but larvae and pupae have not yet been described. In additional collections besides the type series, Bondariella mimica has only been recorded on flowers of S. schizophylla (for details, see natural history of Bondariella). Material examined. Lectotype male deposited in AMNH: “Bahia, Bahia,\ Brazil 2589 [label 1], Cocos schizophylla [label 2], ♂ [label 3], Gregorio Bondar\ Collection\ David Rockefeller\ Donor [label 4], Lectotype \ Bondariella \ mimica \ Hustache & Bondar\ P. Vaurie [label 5 —rectangular, pink, print]”. Paralectotypes: “Bahia, Bahia\ Brazil [label 1], 2589 [label 2], Cotipo [label 3 —rectangular, red, manuscript], Gregorio Bondar\ Collection\ David Rockefeller\ Donor [label 4]”(AMNH: 9 ♂, 9 ♀); “I–II–II [label 1 —also not legible information, manuscript], Gregorio Bondar\ Collection\ David Rockefeller\ Donor [label 2]” (AMNH: 2 ♂), “Cotipo [label 1 — rectangular, red, print], 1942 \ Bahia\ Salvador \ Bondar [label 2], Bondariella \ mimica Hust. e Bond.,\ cotipo 1942 \ H. Reichardt det. 1962 [label 3]” (MZUSP: 16 ♂ (1 dissected), 5 ♀).Published as part of Valente, Roberta De Melo & Júnior, Mariano Brandão Cordeiro, 2015, Revision of Bondariella Hustache & Bondar (Coleoptera: Curculionidae), with descriptions of the first species from the Amazon and notes on natural history, pp. 201-227 in Zootaxa 4018 (2) on pages 221-222, DOI: 10.11646/zootaxa.4018.2.3, http://zenodo.org/record/24329
Search for the decay Bs0→D*∓π±
Get PDFA search for the decay Bs0→D*∓π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help us to understand the mechanism behind related decays such as Bs0→π+π- and Bs0→DD̅ . Systematic uncertainties are minimized by using B0→D*∓π± as a normalization channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(Bs0→D*∓π±)<6.1(7.8)×10-6 at 90% (95%) confidence level
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
Get PDFFirst 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)
Astronomy Reports V. 46, I. 06
No full textAstronomy Reports -- June 2002
Volume 46, Issue 6, pp. 435-520
Color Variations in the Gravitational Lens Q2237 + 0305
V. N. Shalyapin
pp. 435-442 Full Text: PDF (197 kB)
Equilibrium After Violent Relaxation in Numerical Dynamical Models of Open Clusters
V. M. Danilov
pp. 443-450 Full Text: PDF (212 kB)
A Comparative Analysis of the Integrated Radio Luminosities of Normal and Millisecond Pulsars
A. D. Kuz'min
pp. 451-459 Full Text: PDF (198 kB)
Subsystems of RR Lyrae Variable Stars in Our Galaxy
T. V. Borkova and V. A. Marsakov
pp. 460-473 Full Text: PDF (452 kB)
Search for the General Magnetic Fields in Late-Type Giants
T. N. Tarasova
pp. 474-480 Full Text: PDF (146 kB)
The Possible Formation of Massive Tori in White-Dwarf Binary Systems
D. P. Savokhin and E. I. Staritsyn
pp. 481-488 Full Text: PDF (210 kB)
Variability of the Photospheric Radiation of Active K–M Dwarfs and Their X-ray Luminosities
N. I. Bondar'
pp. 489-496 Full Text: PDF (217 kB)
Flare-Plasma Diagnostics from Millisecond Pulsations of the Solar Radio Emission
V. F. Melnikov, G. D. Fleishman, Q. J. Fu, and G.-L. Huang
pp. 497-514 Full Text: PDF (733 kB)
Variations of the Amplitude of the Chandler Wobble
G. S. Kurbasova, L. V. Rykhlova, and M. N. Rybalova
pp. 515-520 Full Text: PDF (171 kB)Archived web conten
Observations of Bºs→ψ(2S)η and Bº(s)→ψ(2S)π+π- decays
Get PDFFirst 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
Astronomy Reports V. 48, I. 07
No full textAstronomy Reports -- July 2004
Volume 48, Issue 7, pp. 525-610
Einstein–Rosen Bridges and the Characteristic Properties of Gravitational Lensing by Them
A. A. Shatskii
pp. 525-533 Full Text: PDF (240 kB)
The Evolutionary Status of Ultraluminous X-ray Sources
A. V. Tutukov and A. V. Fedorova
pp. 534-549 Full Text: PDF (347 kB)
Estimate of the Black-Hole Mass and Orbital Inclination from the Radial-Velocity Curve of the X-Ray Binary Cyg X-1
M. K. Abubekerov, E. A. Antokhina, and A. M. Cherepashchuk
pp. 550-562 Full Text: PDF (313 kB)
The Nature of the Unique Precataclysmic Variable V664 Cas with Two-Peaked Balmer Lines in Its Spectrum
V. V. Shimanskii, N. V. Borisov, N. A. Sakhibullin, and A. E. Surkov
pp. 563-576 Full Text: PDF (438 kB)
Atmospheric Chemical Composition of the Halo Star HD 221170 from a Synthetic-Spectrum Analysis
V. F. Gopka, A. V. Yushchenko, T. V. Mishenina, Chulhee Kim, F. A. Musaev, and A. V. Bondar'
pp. 577-587 Full Text: PDF (323 kB)
A Model for Superoutbursts in SU UMa-type Binaries
D. V. Bisikalo, A. A. Boyarchuk, P. V. Kaigorodov, O. A. Kuznetsov, and T. Matsuda
pp. 588-596 Full Text: PDF (1202 kB)
Analysis of Atmospheric Abundances in Classical Barium Stars
L. I. Antipova, A. A. Boyarchuk, Yu. V. Pakhomov, and V. E. Panchuk
pp. 597-610 Full Text: PDF (274 kB)Archived web conten
Dynamics of finite-sized light spheres in turbulence
No full textWe report experimental results on the Lagrangian dynamics of finite-size light particles in turbulence. Using an orthogonal camera setup and 3D particle tracking, we study the velocity and acceleration statistics of rigid light spheres in a water tunnel with nearly homogeneous and isotropic turbulence. The Reynolds number (ReY) is varied from 180 to 300, and the study covers a range of size ratios (4 < D/η < 16) for marginally light spheres. We find that the normalised acceleration PDF decreases in intermittency with increasing size ratio - in qualitative agreement with the predictions of the Faxén corrected model. We also present preliminary results on the rotational dynamics of large light spheres in turbulence
Prompt charm production in pp collisions at √<span style="text-decoration:overline">s</span>=7 TeV
Get PDFCharm production at the LHC in pp collisions at s√=7 TeV is studied with the LHCb detector. The decays D0→K−π+, D+→K−π+π+, D⁎+→D0(K−π+)π+, D+s→ϕ(K−K+)π+, Λ+c→pK−π+, and their charge conjugates are analysed in a data set corresponding to an integrated luminosity of 15 nb−1. Differential cross-sections dσ/dpT are measured for prompt production of the five charmed hadron species in bins of transverse momentum and rapidity in the region 0<pT<8 GeV/c and 2.0<y<4.5. Theoretical predictions are compared to the measured differential cross-sections. The integrated cross-sections of the charm hadrons are computed in the above pT-y range, and their ratios are reported. A combination of the five integrated cross-section measurements gives
σ(cc¯)pT<8 GeV/c,2.0<y<4.5=1419±12(stat)±116(syst)±65(frag) μb,
where the uncertainties are statistical, systematic, and due to the fragmentation functions
Amostragem de folhas para monitoramento de adultos de mosca branca Bemisia tuberculata (Bondar) (Hemiptera: Aleyrodidae) na cultura da mandioca.
Get PDFDentro do complexo de insetos- praga na cultura da mandioca no Brasil, relata-se o crescimento da importância de espécies de mosca-branca, principalmente, Bemisia tuberculata (Bondar, 1923)
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