79,041 research outputs found
Cyornis cyanopolia Blyth 1870
No full text<i>Cyornis cyanopolia</i> Blyth, 1870 <p> Heinrich Boie (1794–1827) collected in Java several specimens of a flycatcher which he recognized as new for science and labeled <i>Cyornis cyanopolia</i>. Blyth (1870: 165) studied them in the RMNH in autumn 1869, remarking in his paper: “ <i>Cyornis cyanopolia</i> (Boie), from Sumatra, Java and Borneo, differs in no respect that I can perceive, whether from recollection or comparison with Dr. Jerdon’s description [= Jerdon 1862: 465], from <i>C. unicolor</i>, nobis [= Blyth 1843: 1007], of the Sikhim Himalaya.” This sentence started a paragraph on <i>Cyornis</i> flycatchers and the name “ <i>Cyornis cyanopolia</i> ” was printed in small caps. This misled many subsequent workers to believe that Blyth (1870) used <i>Cyornis cyanopolia</i> as a valid name for a taxon. Some of them considered the name available for nomenclatural purposes (e.g. Gray 1871: 218; Salvadori 1874: 132; Giebel 1875: 633; Hume 1879: 59; Mees 2004; Quaisser 2010), while others argued that it is a nomen nudum (e.g. Hartert 1902: 550; Dickinson <i>et al.</i> 2002). However, Blyth (1870) clearly said that Boie’s <i>C. cyanopolia</i> is inseparable from his own <i>C. unicolor</i>. Thus, provisions of Art. 11.5. of the Code were not fulfilled (“Names to be valid when proposed.”) and <i>Cyornis cyanopolia</i> Boie was simply listed by Blyth (1870: 165), as a label name, in the synonymy of <i>C. unicolor</i> Blyth, 1843 (Art. 11.6. of the Code). Note that label names were deemed available for nomenclatural purposes in Blyth’s times, and Blyth (1870) thus treated Boie’s <i>Cyornis cyanopolia</i> in this way.</p> <p> Gray (1871: 218) listed “ <i>cyanopolia</i>, Boie ” in the Index of species names to his <i>Handlist</i>, but was uncertain whether it is a valid species or a synonym of <i>C. unicolor</i> Blyth. Salvadori (1874: 132) seems to have been the first to treat “ <i>Cyornis cyanopolia</i> (Boie) ” as available for nomenclatural purposes <i>and</i> as a valid name for a flycatcher species, thus fulfilling provisions of Art. 11.6.1. of the Code. Herewith, <i>Cyornis cyanopolia</i> became available for nomenclatural purposes with Blyth (1870) as its author (Art. 11.6.1. and Art. 50.7. of the Code).</p> <p> Blyth (1870) listed no specimens, but it is evident from his paper that he cited specimens labeled in the RMNH as <i>Cyornis cyanopolia</i> Boie. These specimens, all of which belong to a single form, are thus syntypes of <i>Cyornis cyanopolia</i> Blyth, 1870 (Art. 72.4.3. of the Code). Dekker (2003: 68) detailed that the RMNH possesses three such specimens, all collected by Boie in Java: RMNH 89617 (ad. 3), RMNH 89618 (ad. 3) and RMNH 89619 (imm. 3).</p> <p> Dekker (2003: 69) and Quaisser (2010: 66) believed that specimens RMNH 89620 and RMNH 89621 also belong to the type series of <i>Cyornis cyanopolia</i> Blyth, which is not true (see below). Quaisser (2010: 66) thus suggested that <i>Cyornis cyanopolia</i> Blyth was based on syntypes from different taxa and consequently designated RMNH 89620 as its lectotype. As shown here, RMNH 89620 and RMNH 89621 were not part of the type series upon which <i>Cyornis cyanopolia</i> Blyth was based. Her action is thus invalid (Art. 74.1. of the Code) and the specimen loses its status as lectotype (74.2. of the Code).</p>Published as part of <i>Mlíkovský, Jiří, 2011, Nomenclatural notes on Cyornis and Rhinomyias flycatchers (Aves: Muscicapidae) of South-East Asia, pp. 64-68 in Zootaxa 2985</i> on pages 64-65, DOI: <a href="http://zenodo.org/record/201827">10.5281/zenodo.201827</a>
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
Lepus pequensis Blyth 1855
No full textLepus pequensis Blyth, 1855. J. Asiat. Soc. Bengal, 24:471. TYPE LOCALITY: " Pegu " [Upper Pegu, Burma]. DISTRIBUTION: C, S Burma from Chindwin River valley east through Thailand; Cambodia; S Laos, S Vietnam; south in upper Malay Peninsula (Burma, Thailand) to 120°N. STATUS: Does not seem threatened (Flux and Angermann, 1990). SYNONYMS: siamensis Bonhote, 1902; vassali Thomas, 1906. COMMENTS: Placed by Gureev (1964: 144) in Caprolagus (Indolagus); he ranked siamensis as a distinct species; but see Lekagul and McNeely (1977:333) and Flux and Angermann (1990). Petter (1961) suggested that pequensis might be conspecific with nigricollis because of its close resemblance to L. n. ruficaudatus. However, L. n. ruficaudatus appears to be allopatric with respect to pequensis in E India-W Burma. Angermann (in litt., 1992) considered pequensis conspecific with nigricollis.Published as part of Robert S. Hoffmann, 1993, Order Lagomorpha, pp. 807-827 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 820, DOI: 10.5281/zenodo.735308
When is Explanation Transitive? A Methodological Note
No full textThe article considers the following explanatory- transitivity question: assume that A explains B and B explains C: does A also explain C? In the present paper the term explanation signifies causal explanation. The discussion of this question arrives at the answer that a necessary condition for explanatory-transitivity can be proposed. Accordingly, if B explains observation O (bEo) and A explains B (aEb), then A also explains O (aEo), when: if the same E is not preserved in the three expressions (bEo, aEb, aEo) then the transitivity of E will not be preserved. This answer is supported by an analysis of a large number of examples. The article also analyzes the relations among explanation, reduction and transitivity
Prompt charm production in pp collisions at √<span style="text-decoration:overline">s</span>=7 TeV
No full textCharm 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
Mathematical tales of technology and collaboration
No full textSeveral tales are told about the teaching of tertiary level mathematics, with recurring themes of various forms of technology and collaboration. These include: the Australian Mathematical Sciences Institute (AMSI) program of collaborative eTeaching of advanced mathematics (at Honours level) to small classes at multiple remote sites via Access Grid Rooms (AGRs); AMSI seminars and workshops held via AGRs; some pedagogical issues with eTeaching in AGRs, a proposed pedagogical framework and examples of some software (pdf slide-show, annotations, Word, Power Point, Maple) within the context of both AGR and standard e-presentations; eMarking, where the tutor marks in an electronic environment; computer aided assessment (CAA), using generally available computer algebra systems (CAS) enabled CAA packages (the commercial MapleTA and the open source STACK) and the more powerful CAS immersed CAA using Maple to mark individualised assignments, with plots and comments---a current research topic at RMIT University and Oxford University; and usage of CAA for large classes will surely increase. The development of quality materials is resource intensive: since expertise is geographically distributed collaborative development via AGRs would be valuable.
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Seed source and region effects on growth rate and survival of blue spruce (Picea pungens) Christmas trees in New Jersey
No full textSeedlings from five different seed sources of blue spruce Christmas trees were planted at five sites throughout New Jersey. Two sites in northern New Jersey and one in central New Jersey had significantly higher survival rates than the two in southern New Jersey. Additionally, the two sites in northern New Jersey had significantly faster growth rates than those in southern and central New Jersey. There were no significant differences in survival rates between seed sources. In terms of growth rates, however, seedlings from seeds obtained in Santa Fe National Forest, New Mexico grew significantly faster than seedlings from the other seed sources tested. This forther growth rate is predicted to shorten the time needed to reach marketability size by one to five years
sj-docx-1-jcn-10.1177_08830738221093209 - Supplemental material for Postinfectious Acute Cerebellar Syndromes in Children: A Nationally Ascertained Case Series From Australia 2013–2018
No full textSupplemental material, sj-docx-1-jcn-10.1177_08830738221093209 for Postinfectious Acute Cerebellar Syndromes in Children: A Nationally Ascertained Case Series From Australia 2013–2018 by Gayana P. S. Gunaratna, Shekeeb S. Mohammad, Christopher C. Blyth, Julia Clark, Nigel Crawford, Helen Marshall, Russell C. Dale, Cheryl A. Jones, Philip N. Britton and in Journal of Child Neurology</p
sj-docx-2-jcn-10.1177_08830738221093209 - Supplemental material for Postinfectious Acute Cerebellar Syndromes in Children: A Nationally Ascertained Case Series From Australia 2013–2018
No full textSupplemental material, sj-docx-2-jcn-10.1177_08830738221093209 for Postinfectious Acute Cerebellar Syndromes in Children: A Nationally Ascertained Case Series From Australia 2013–2018 by Gayana P. S. Gunaratna, Shekeeb S. Mohammad, Christopher C. Blyth, Julia Clark, Nigel Crawford, Helen Marshall, Russell C. Dale, Cheryl A. Jones, Philip N. Britton and in Journal of Child Neurology</p
The relationship between Bordetella pertussis genotype and clinical severity in Australian children with pertussis
No full textAbstract not availableMichelle Clarke, Peter B. McIntyre, Christopher C. Blyth, Nick Wood, Sophie Octavia, Vitali Sintchenko, Lynne Giles, Helen Quinn, Verity Hill, Gabrielle Hanly, Ruiting Lan, Helen S. Marshal
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