3,604 research outputs found
Students read from their original, award wining works at the 2006 Michigan State University Student Writers Awards Night
No full textAt the 2006 Michigan State University Student Writers Awards Night, students read from their original, award wining works. Readers include: double winner Nicholas Miller, Lauren Linsalata, Patrick Walchak, and Chris Goetz. The event is convened and hosted by MSU Professor of English and co-director of Film Studies Jeff Wray. A special appearance to present awards is made by noted author Paul Beatty. Part of the MSU Libraries' Michigan Writers Series. Held in the MSU Main Library
Distribution of Westralunio carteri Iredale, 1934 (Bivalvia: Unionoida: Hyriidae) on the south coast of south-western Australia, including new records of the species
No full textWestralunio carteri Iredale 1934 is the only hyriid in southwestern Australia. The species was listed as ‘Vulnerable’ by the IUCN, due to population decline from dryland salinity, although the listing was recently changed to ‘Least Concern’. The Department of Environment and Conservation lists the species as ‘Priority 4’, yet it lacks special protection under federal or state legislation. Accuracy in species accounts is an important driver in determining conservation status of threatened species. In this regard, discrepancies in locality names and vagary in museum records necessitated the eastern distributional bounds of W. carteri to be clarified. Here we present an updated account of the species’ distribution and describe two previously unknown populations of W. carteri in the Moates Lake catchment and Waychinicup River, resulting in an eastern range extension of 96–118 km from the Kent River, formerly the easternmost river where W. carteri was known. For mussel identification, samples (n = 31) were collected and transported live to the laboratory for examination and internal shell morphology confirmed that the species was W. carteri. Due to an acute salinity tolerance of 3.06 g/L (LD50 ), the species is unlikely to exist in catchments east of the Waychinicup River where salinities are known to be as high as 45 g/L. The current study clarifies the eastern distribution of W. carteri and will allow monitoring of its range decline to be made in the future
On -free numbers over Beatty sequences
No full textsummary:We consider -free numbers over Beatty sequences. New results are given. In particular, for a fixed irrational number of finite type , we can show that where is the set of positive -free integers and the implied constant depends only on and This improves previous results. The main new ingredient of our idea is employing double exponential sums of the type \sum _{1\leq h\leq H}\sum _{ 1\leq n\leq x \atop n\in \mathcal {Q}_{k}}e(\vartheta hn). $
Ecology, life history and conservation status of Westralunio carteri IREDALE 1934, an endemic freshwater mussel of South-western Australia
No full textWestralunio carteri, the only hyriid in south-western Australia, was nominated ‘Vulnerable’ (IUCN) in 1994. The aims of this study were to update the species’ range and determine factors limiting its distribution, quantify tolerance to threats, quantify reproduction, describe glochidia morphology, identify host fishes to support the species’ life cycle and estimate growth and age.
Extent of Occurrence (EOO) of W. carteri is currently 16,011.9 km2, a 63.3% decline from the historic EOO of 43,579.8 km2, suggesting that the species should be classified as ‘Endangered’ under IUCN guidelines. Multivariate analysis identified flow and drying as explaining most of the variation in the distribution data, while the difference between historic and current distribution was explained principally by salinity. Salinity tolerance experiments indicated LC50 values of 1.3 - 3.0 and LC95 of 3.2 - 4.3 g L-1. Artificial water removal suggested W. carteri is intolerant of drying for more than five days during summer without shade or moist sediments.
Westralunio carteri spawns during winter; embryos are brooded in the gills of females to become glochidia and released on mucus strings in September – December, when they attach to fins of fishes. Glochidia morphology (size and larval teeth) is distinctive in W. carteri, compared to other Australian hyriids.
Glochidia were found on fins of seven native and three alien fish species from 18 populations. Prevalence was 0.0 - 41.0% and 9.2 - 90.5% and intensity 1.0 - 6.0 and 2.3 - 7.1 in alien and native fishes, respectively. Four native and one alien fish species were confirmed as competent hosts in the laboratory. Time to metamorphosis was 21-27 days.
Growth rates were ~12.0 to 75 mm long) sizes. Calcein validated growth rings as annuli and ages were 3 – 51 years at shell lengths of 12.6 - 82.5 mm, respectively, from five populations. Growth rates and ages-at-length were highly variable between populations
Distribution of the spotted minnow (Galaxias maculatus (Jenyns, 1842)) (Teleostei: Galaxiidae) in Western Australia including range extensions and sympatric species
No full textGalaxias maculatus was captured from a number of rivers outside its previously known range. In Western Australia, it was formerly only known from rivers and lakes between the Goodga River (Two People's Bay, 30 km east of Albany) and the Dailey River (50 km east of Esperance), with additional records from the Boat Harbour Lakes (Kent River). An intensive survey of the inland fishes in rivers and lakes along the south coast of Western Australia has extended its distribution east by 50 km (Thomas River), west by approximately 40 km (Walpole River) and north by 400 km (Harvey River). The Western Australian Museum also has a specimen from the Canning River, a further 100 km north. Field salinity tolerance of G maculatus was high, with fish found alive in 81 mScm 1 (-45 ppt). The freshwater piscifauna east of, and including, the Pallinup River is depauperate, with G. maculatusbeing the only freshwater species present. All sympatric teleosts are tolerant of salinity and, with the exception of the introduced Gambusia holbrooki, are estuarine, including Pseudogobius olorum, Leptatherina wallacei and Acanthopagrus butcheri
Bibliotheca Japonica: A Review of Five Catalogs of Premodern Japanese Books and Manuscripts in Western Collections
No full textA review of five catalogs of collections of premodern Japanese books and manuscripts from Western collections: the Library of the School of Oriental and African Studies (London), the Spencer Collection of the New York Public Library, the Nordenskiold Books in the Royal Library (Stockholm), the Staatsbibliothek Preussischer Kulturbesitz (Berlin), and the Chester Beatty Library (Dublin, Ireland). The article describes the historical background of these collections and elucidates issues related to bibliographic and physical description of premodern (before 1868) Japanese books and manuscripts
Prevalence and risk factors for Felis catus gammaherpesvirus 1 detection in domestic cats in Italy
No full textFelis catus gammaherpesvirus 1 (FcaGHV1), a novel gammaherpesvirus of domestic cats identified in 2014, has been detected in different countries demonstrating a worldwide distribution. The aim of this study was to establish the prevalence of FcaGHV1 in Italy using a molecular epidemiological approach. FcaGHV1 DNA was detected with virus-specific real-time PCR in ≃1% of 2659 feline blood samples tested. Analysis of risk factors showed that being male and coinfection with feline immunodeficiency virus (FIV) increase the likelihood of FcaGHV1 detection. One-third of FcaGHV1-positive cats also tested positive for FIV provirus, whereas coinfections with feline panleukopenia virus were not demonstrated. Further studies are necessary to confirm the risk factors for FcaGHV1 detection and the pathobiology of the virus
The Harclean Margin : a study of the asterisks, obeli and marginalia of the Harclean Syriac version, with special reference to the gospel of Luke
No full textA bounds analysis of world food futures: global agriculture through to 2050
No full textArticle first published online: 17 SEP 2014The notion that global agricultural output needs to double by 2050 is oft repeated. Using a new International Agricultural Prospects (iAP) Model, to project global agricultural consumption and production, we find in favour of a future where aggregate agricultural consumption (in tonnes) increases more modestly, by around 69 per cent (1.3 per cent per year) from 2010 to 2050. The principal driver of this result is a deceleration in population growth in the decades ahead. Per capita income growth and changing demographics (generally ageing population) have significant but secondary roles in spurring growth in agricultural consumption, as does our projected growth in the use of agricultural feedstocks to meet the growth we envisage in biofuel demand. Worldwide (but not equally everywhere), crop yield growth has generally slowed over the past decade or so. Notwithstanding a projected continuance of this slowdown, the prospective improvements in crop productivity are still sufficient to reduce per capita cropland use, such that land devoted to crops would need to increase by less than 10 per cent. Even in our upper-bound (high-consumption) scenario, we estimate that there remains sufficient productive agricultural land to more than meet the demand without ploughing-in additional forest-dominated lands.Philip G. Pardey, Jason M. Beddow, Terrance M. Hurley, Timothy K.M. Beatty and Vernon R. Eidma
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