526 research outputs found

    A novel quantitative, sub-provincial approach to characterizing the shape of chlorophyll profiles

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    Bibliography: leaves 122-136.In this study, novel approaches such as artificial neural networks and generalized modelling have highlighted the variability in profile shape and enabled its improved prediction. This will lead to superior regional estimates of primary production

    A simple disc wind model for broad absorption line quasars

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    Approximately 20 per cent of quasi-stellar objects (QSOs) exhibit broad, blue-shifted absorption lines in their ultraviolet spectra. Such features provide clear evidence for significant outflows from these systems, most likely in the form of accretion disc winds. These winds may represent the ‘quasar’ mode of feedback that is often invoked in galaxy formation/evolution models, and they are also key to unification scenarios for active galactic nuclei (AGN) and QSOs. To test these ideas, we construct a simple benchmark model of an equatorial, biconical accretion disc wind in a QSO and use a Monte Carlo ionization/radiative transfer code to calculate the ultraviolet spectra as a function of viewing angle. We find that for plausible outflow parameters, sightlines looking directly into the wind cone do produce broad, blue-shifted absorption features in the transitions typically seen in broad absorption line (BAL) QSOs. However, our benchmark model is intrinsically X-ray weak in order to prevent overionization of the outflow, and the wind does not yet produce collisionally excited line emission at the level observed in non-BAL QSOs. As a first step towards addressing these shortcomings, we discuss the sensitivity of our results to changes in the assumed X-ray luminosity and mass-loss rate, Ṁwind. In the context of our adopted geometry, Ṁwind ∼ Ṁacc is required in order to produce significant BAL features. The kinetic luminosity and momentum carried by such outflows would be sufficient to provide significant feedback

    Frazy rzeczownikowe oparte na akronimach powstałe w wyniku abrewiacji i motywacji składniowej

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    The paper focuses on acronym-based noun phrases, i.e. noun phrases consisting of an abbreviation and a non-abbreviated lexeme. The author works with the theory of lexical motivation which presumes the existence of several types of motivation, including abbreviation and syntactic motivation. While abbreviations are formed by means of abbreviation motivation, syntactic constructions such as noun phrases are formed by means of syntactic motivation. Both types of motivation are dominant in the forming of abbreviation noun phrases. The author distinguishes and explains the differences between tautological (PIN number), semi-tautological (SIM card) and explicative noun phrases (GPRS platforms) as well as abbreviation multi-word units (USB port). The paper points out manifold functionality of each type of abbreviation noun phrase/multiword unit and presents abbreviations as productive means of forming new constructions and lexemes. Their versatile character makes abbreviations universal forms for coining new expressions of terminological character and thus contributing to multiple terminological databases of languages.Celem artykułu jest opis fraz rzeczownikowych mających w swojej strukturze akronim oraz pełen (nie będący skrótowcem) człon rzeczownikowy. Autorka artykułu bazuje na teorii motywacji z jej postulatem o zróżnicowanych typach motywowania. O ile powstawanie skrótowców motywowane jest abrewiacją, struktury składniowe takie jak nominaty powstają w drodze motywacji syntaktycznej. W artykule wyróżnia się i omawia osobliwe cechy fraz rzeczownikowych tautologicznych (numer PIN), semi-tautologicznych (karta SIM) i objaśniających (platforma GPRS) czy skrótowców wieloczłonowych (port USB).Wskazuje się też na wielofunkcjonalność każdego z wymienionych typów oraz produktywność skrótowców w tworzeniu nowych jednostek leksykalnych. Ta cecha sprawia, że skrótowce postrzegane są jako uniwersalne środki formułowania nowych terminów specjalistycznych, a tym samym jako jednostki wybitnie przydatne w budowaniu baz terminologicznych danego języka.This work was supported by the Scientific Grant Agency VEGA under project No. 1/0083/19 Slovotvorná a morfematická štruktúra slovenského slova II. (intralingválne a interlingválne súvislosti)[email protected] of PrešovBajzíkova, E., 1996, Parentéza a jej funkcie v žurnalistických textoch [Parenthesis and Its Functions in Journalistic Texts], “Slovenská reč” 6, pp. 331–306.Bilá, A. Kačmárová, 2016, A Multiword Lexical Unit in English and Slovak Linguistic Terminology, “Russian Journal of Linguistics” 20 (3), pp. 164–175.Blanár, V., 1998, Stalo sa raz v meste N [Once Upon a Time in the Town N], “Slovenská reč” 4, pp. 193–198.Bujalková, M., 1992, Abreviatúry a značky ako osobitné druhy termínov v lekárskej genetickej terminológii [Abbreviations and Symbols as Specific Types of Terms in Medical Genetic Terminology], “Kultúra slova” 11–12, pp. 334–338.Furdík, J., 1993, Slovotvorná motivácia a jej jazykové funkcie [Word-formation Motivation and Its Language Functions], Levoča.Furdík, J., 2004, Slovenská slovotvorba [Slovak Word-formation], Prešov.Furdík, J., 2008, Teória motivácie v lexikálnej zásobe [Theory of Motivation in Lexis], Košice.Gavurová, M., 2013. Skratka ako lexéma [Abbreviation as a Lexeme], Prešov. https://www.academia.edu/8615751/Skratka_ako_lex%C3%A9ma (available: 01.03.2021)Horecký, J., 1980, Niečo o akronymách [On Acronyms], “Kultúra slova” 5, pp. 149–152.Horecký, J., 2001, Dve charakteristiky textov o mobilnej komunikácii [Two Characteristic Features of Texts on Mobile Communication], “Kultúra slova” 5, pp. 267–269.Hrbáček, J., 1979, Jazykové zkratky v češtině. [Abbreviations in Czech], Praha.Krátky slovník slovenského jazyka, 2003, [Concise Dictionary of Slovak], Eds. J. Kačala et al., Bratislava.Kochová, P., 2003, Internacionální iniciálové zkratky [International Initial Abbreviations], in: Internacionalizmy v nové slovní zásobě [International Words in New Lexis], eds.: Z. Tichá – A. Rangelová, Praha, pp. 157–165.Kontríkova, I., 2010, Dynamika vývinu slovotvorby v nemčine a slovenčine na príklade kompozít v odbornom jazyku ekonomických disciplín [Dynamics of Wordformation Development in German and Slovak – Case in point: Compounds in Economic Discourse], Cudzie jazyky, odborná komunikácia a interkultúrne fenomény [Foreign Languages, Professional Discourse and Intercultural Phenomena], Eds.: Z. Karabinošová – M. Kášová, Prešov, pp. 165–173.Martincová, O. et al., 2004, Nová slova v češtině 2 [New Words in Czech 2], Praha.Mislovičová, S., 2000, Názvy súvisiace s elektronickou poštou a s inými spôsobmi posielania písomných správ [Terminology of E-mail And Text Messages Communication], “Kultúra slova” 4, pp. 203–207.Ološtiak, M., 2011, Aspekty teórie lexikálnej motivácie [Facets of Theory of Lexical motivation], Prešov.Ološtiak, M., (ed.), 2015, Kvalitatívne a kvantitatívne aspekty tvorenia slov v slovenčine [Aspects of Quality and Quantity in Slovak Word-formation], Prešov.Slovenský národný korpus [Slovak national corpus] – prim-9.0-public-sane. Bratislava: Jazykovedný ústav L’. Štúra SAV 2018. Dostupný z WWW: https://bonito.korpus.sk/index.htmlOloštiak, M., – Ivanová, M., 2015, Teoreticko-metodologické, nominačné a typologické otázky viacslovných pomenovaní [Theoretical-methodological, nominal and typological issues of multiword units], in: Ološtiak, M. (ed.): Viacslovné pomenovania v slovenčine. Prešov: Filozofická fakulta Prešovskej univerzity v Prešove, pp. 129–213.Slovník súčasného slovenského jazyka, 2006, 2011, [Dictionary of Contemporary Slovak], t. I–II, eds. K. Buzássyová – A. Jarošová, Bratislava.Vel’ký slovník cudzích slov, 1997, [Complete Dictionary of Foreign Words], ed. S. Šaling, Bratislava – Vel’ký Šariš.Trup, L., 1999, Španielska lexikológia [Spanish Lexicology], Banská Bystrica.21234

    Dragmacidon hendersoni Sim-Smith & Hickman & Kelly 2021, sp. nov.

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    Dragmacidon hendersoni sp. nov. (Fig. 13) Material examined. Holotype — MCCRDS9412, Nameless Island, 0.670° S, 90.586° W, 9 m, 9 Aug 2003. Type locality. Nameless Island; 9 m. Habitat and distribution. Only known from the type locality. Found in a recess on a vertical wall growing on rock; 9 m. Description. Thinly encrusting sponge, 3 mm thick, with a minutely ridged and punctate surface. A few small oscules are scattered over the surface of the sponge. Texture is compressible, surface is faintly hispid. Colour in life is bright yellow, colour in ethanol is tan (Fig. 13A). Skeleton. Choanosomal skeleton is loosely plumoreticulate, with delicate, multispicular primary tracts and vague secondary tracts/connections. Bundles of styles protrude through the surface of the sponge, in tufts, points uppermost. There is no special ectosome (Fig. 13B). Spicules. Megascleres— Style I (Fig. 13C), small, slender and slightly curved; 231 (209–248) × 6 (4–7) µm (n = 20). Style II (Fig. 13D), very slender and often strongly curved or slightly sinuous; 197 (127–334) × 2.4 (1.2–3.4) µm (n = 20). Etymology. Named after Scott Henderson, who accompanied co-author Cleveland Hickman on numerous trips to the Galápagos from 1983–2016. He assisted Cleve in a variety of roles from local negotiator and logistics organiser, divemaster during harrowing high-current dives, trusted friend and host on his Santa Cruz coffee farm. Of the 149 students Cleve led on 12 Galápagos student field trips, Scott was the only one to make Galápagos his home and life-long conservation project. Remarks. Dragmacidon hendersoni sp. nov. differs considerably from D. raeae sp. nov. by: live colouration (yellow vs bright red); skeleton (compact plumoreticulate vs loosely plumoreticulate to plumose); texture (firm vs compressible); and the possession of two size categories of styles, with both categories being more slender and sinuous than those of D. raeae sp. nov. It also differs considerably from the previously recorded D. oxeon which has much longer megascleres. It differs from all other tropical/subtropical eastern Pacific species by the lack of oxeas. Table 4 provides useful details on all known species of Dragmacidon, many of which appear to fall loosely into two groups: those that were previously identified as species of Pseudaxinella Schmidt, 1875 [D. raeae sp. nov. and other species that form firm dome-shaped sponges, with compact plumoreticulate skeletons that often lack trichodragmata, such as D. australe (Bergquist, 1970), D. coccineum (Keller, 1891), D. debitusae (Hooper & Lévi, 1993)]; and those that have a looser, more plumose skeleton with longer, more sinuous megascleres and often raphides in trichodragmata, resulting in a softer, less firm sponge, such as D. oxeon, D. mutans (Sarà, 1978), D. tumidum (Dendy, 1897), and D. decipiens (Wiedenmayer, 1989). The addition of two species from the Galápagos Archipelago, each of which falls loosely into one or the other group, may lend additional data for future detailed analysis of Dragmacidon, a genus of convenience into which all species commonly previously recorded as Pseudaxinella (a junior synonym of Axinella), were assigned by Alvarez & Hooper (2002: 734).Published as part of Sim-Smith, Carina, Hickman, Cleveland & Kelly, Michelle, 2021, New shallow-water sponges (Porifera) from the Galápagos Islands, pp. 1-71 in Zootaxa 5012 (1) on pages 30-31, DOI: 10.11646/zootaxa.5012.1.1, http://zenodo.org/record/515806

    LASER SPECTROSCOPY OF THE B1ΠuX1Σg+B^{1}\Pi_{u}\leftarrow X ^{1}\Sigma^{+}_{g} SYSTEM OF Cs2Cs_{2} IN THE 1270013150cm112700-13150 cm^{-1} REGION

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    (1)U. Diemer, R. Duchowicz, M. Ertel., E. Mehdizadeh and W. Demtr\""{o}der, Chem.Phys.Lett. 164, 419-426 (1989). (2)F. Nez F. Biraben, R. Felder, and Y. Millerioux, Optics Comm. 102, 432-438 (1993). (3)W. Weickenmeier, U. Diemer, M. Wahl, M. Raab, W. Demtr\""{o}der and W. M\""{u}ller, J.Chem.Phys. 82, 5354-5363 (1985).Author Institution: Research \& Education, Center of Software, Engineering; Department of Electronic Engineering, Tokyo, Institute of Polytechnics, ItyamaThe electronic vib-rotational transitions of the B1ΠuX1Σg+B^{1}\Pi_{u}- X ^{1}\Sigma^{+}_{g} system have been observed and assigned by U.Diemer et al.(1). In the present work, we report the assignments of 5000 lines and the improved spectroscopic constants. The Doppler limited P, Q and R - branch absorption lines of J=20J = 20 to 270 belonging to the vv=(05)(011)v'\leftarrow v'' = (0\sim 5)\leftarrow (0\sim 11) progressions were measured in the 1270013150cm112700 - 13150 cm^{-1} region using a Ti:sapphire ring laser (Coherent 899-21). The vv=14,15v' \leftarrow v'' = 1 \leftarrow 4, 1\leftarrow 5 and 262 \leftarrow 6 bands were measured using a technique of polarization spectroscopy. The wavelength measurements were done using a wavelength-meter (Anritu MF9630A) with an accuracy of ±0.5\pm 0.5 ppm, which was calibrated against the two photon signal of Rb at 788 nm (2). The Dunham's coefficients of the Yl,ml(l=04,m=04)Y^{l}_{l,m} (l=0\sim 4, m = 0\sim 4) of the B-state were determined by a global least squares fitting by using the constants of the X-state reported by W. Weickenmeier et al.(3)

    HIGH RESOLUTION MEASUREMENTS OF ABSORPTION LINE PARAMETER FOR CARBON DIOXIDE IN THE 15μm\mu m REGION

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    Author Institution: High Altitude Engineering Laboratory, University of MichiganHigh resolution spectra (0.07\sim 0.07 cm1cm^{-1}) of carbon dioxide have been taken in the 15μm\mu m region to determine frequencies, intensities and half-widths of the individual vibrational-rotational lines. Typical spectra will be presented and the results obtained will be summarized

    FTMW SPECTROSCOPY OF CH2NC(X~2B1)CH_{2}NC (\tilde{X}^{2}B_{1}) {\sim} A POSSIBLE CANDIDATE OF INTERSTELLAR MOLECULE

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    a^{a}W. M. IRVINE et al. Astrophys. J., 334, L107 (1988).Author Institution: Institute for Astrophysics and Planetary Sciences, Ibaraki University; Japan Aerospace Exploration Agency (JAXA), SMILES Mission Team, Tsukuba Space Center; Department of Physics and Research Center for the Early Universe, The University of TokyoCyanohydrocarbons are molecules of great importance in cold dark clouds such as TMC-1. Due to such interests, CH2CNCH_{2}CN has been studied by experimental and theoretical means, and these extensive investigations lead unambiguous identification of the molecule in interstellar matteramatter^{a}. It turns out that an isomer CH2NCCH_{2}NC was rarely studied experimentally, probably because of unstableness of this species compared with CH2CNCH_{2}CN. We recently recorded Fourier transform microwave (FTMW) spectra of CH2NCCH_{2}NC at the University of Tokyo. About 0.310.3{\sim}1 percent of CH3NCCH_{3}NC, synthesized by an ordinary way, was diluted in the Ar or Ne buffer gas at the pressure of 1{\sim}1 atm. The mixed gas was injected into the Fabry-P\'{e}rot cavity via a pulsed nozzle, whose opening was synchronized with high voltage dc pulse to discharge to generate the aimed species. N=110000(22.2GHz),202101212111N=1_{10}-0_{00} ({\sim} 22.2 GHz), 2_{02}-1_{01} 2_{12}-1_{11}, and 211110(44.4GHz)2_{11}-1_{10} ({\sim} 44.4 GHz) were recorded with well resolved fine and hyperfine structure. The molecular structure as well as a possibility of detection of this molecule will be discussed

    Postfledging Survival, Movements, and Dispersal of Ring Ouzels (Turdus torquatus)

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    We thank Invercauld Estate for cooperation with access to Glen Clunie. S. Redpath, J. Wilson, and S. Roos provided valuable comments on the manuscript. This study was funded by the Royal Society for the Protection of Birds, Scottish Natural Heritage, and the Cairngorms National Park Authority. J.L.L. was supported by the Natural Environment Research Council.Peer reviewe
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