997 resultados para Academy of Science of St. Louis


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We prospectively sampled flavivirus-naïve horses in northern Colombia to detect West Nile virus (WNV) and St. Louis encephalitis virus (SLEV) seroconversion events, which would indicate the current circulation of these viruses. Overall, 331 (34.1%) of the 971 horses screened were positive for past infection with flaviviruses upon initial sampling in July 2006. During the 12-month study from July 2006-June 2007, 33 WNV seroconversions and 14 SLEV seroconversions were detected, most of which occurred in the department of Bolivar. The seroconversion rates of horses in Bolivar for the period of March-June 2007 reached 12.4% for WNV and 6.7% for SLEV. These results comprise the first serologic evidence of SLEV circulation in Colombia. None of the horses sampled developed symptoms of encephalitis within three years of initial sampling. Using seroconversions in sentinel horses, we demonstrated an active circulation of WNV and SLEV in northern Colombia, particularly in the department of Bolivar. The absence of WNV-attributed equine or human disease in Colombia and elsewhere in the Caribbean Basin remains a topic of debate and speculation.

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Saint Louis encephalitis virus caused an outbreak of febrile illness and encephalitis cases in Córdoba, Argentina, in 2005. During this outbreak, the strain CbaAr-4005 was isolated from Culex quinquefasciatus mosquitoes. We hypothesised that this epidemic variant would be more virulent in a mouse model than two other non-epidemic strains (78V-6507 and CorAn-9275) isolated under different epidemiological conditions. To test this hypothesis, we performed a biological characterisation in a murine model, including mortality, morbidity and infection percentages and lethal infection indices using the three strains. Mice were separated into age groups (7, 10 and 21-day-old mice) and analysed after infection. The strain CbaAr-4005 was the most infective and lethal of the three variants, whereas the other two strains exhibited a decreasing mortality percentage with increasing animal age. The strain CbaAr-4005 produced the highest morbidity percentages and no significant differences among age groups were observed. The epidemic strain caused signs of illness in all inoculated animals and showed narrower ranges from the onset of symptoms than the other strains. CbaAr-4005 was the most virulent for Swiss albino mice. Our results highlight the importance of performing biological characterisations of arbovirus strains likely to be responsible for emerging or reemerging human diseases.

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Saint Louis encephalitis virus (SLEV) is a member of the Japanese-encephalitis virus serocomplex of the genus Flavivirus. SLEV is broadly distributed in the Americas and the Caribbean Islands, where it is usually transmitted by mosquitoes of the genus Culex and primarily to birds and mammalian-hosts. Humans are occasionally infected by the virus and are dead-end hosts. SLEV causes encephalitis in temperate regions, while in tropical regions of the Americas, several human cases and a wide biological diversity of SLEV-strains have been reported. The phylogenetic analysis of the envelope (E) protein genes indicated eight-genotypes of SLEV with geographic overlap. The present paper describes the genotyping of two SLEV viruses detected in mosquito-pools collected in northern Colombia (department of Cordoba). We used reverse transcription-polymerase chain reaction to amplify a fragment of theE-gene to confirm the virus identity and completeE-gene sequencing for phylogenetic analysis and genotyping of the two-SLEV viruses found circulating in Córdoba. This is the first report of SLEV genotype IV in Colombia (Córdoba) in mosquitoes from a region of human inhabitation, implicating the risk of human disease due to SLEV infection. Physicians should consider SLEV as a possible aetiology for undiagnosed febrile and neurologic syndromes among their patients who report exposure to mosquito-bites.

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Reaudit report on the City of St. Charles, Iowa for the period July 1, 2005 through June 30, 2006

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Audit report on the City of St. Charles, Iowa for the year ended June 30, 2010

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Audit report on the City of St. Charles, Iowa for the year ended June 30, 2012

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Pieces of Iowa’s Past, published by the Iowa State Capitol Tour Guides weekly during the legislative session, features historical facts about Iowa, the Capitol, and the early workings of state government. All historical publications are reproduced here with the actual spelling, punctuation, and grammar retained THIS WEEK: Iowa State Capitol and the Library of Congress Feature Artist’s Work BACKGROUND: Elmer Ellsworth Garnsey was primarily a muralist who painted on the East Coast from a studio in New York City. He was born in Holmdel, New Jersey, and took art training at the Art Students League and Cooper Union. Affiliations included the National Society of Mural Painters and the American Federation of the Arts. His work is in the Library of Congress, Boston Public Library, Memorial Hall at Yale University, City Art Museum of St. Louis, U.S. Custom House in New York City, and the State Capitol in Iowa.

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Työssä tutkitaan eri mekanismeja rajojen ylittävään innovaatioiden edistämiseen pienten ja keskisuurten yritysten näkökulmasta. Case ympäristönä on Kaakkois-Suomen ja Luoteis-Venäjän alueeli Pietarin Corridor. Tavoitteena on löytää tarkemmat määritykset ja rajauksetnäille mekanismeille. Teoriassa muodostettiin viitekehys rajojen ylittävälle innovaatioiden edistämismallille. Mallin pohjalta toteutettiinhaastattelututkimus, joka suoritettiin case-ympäristössä. Haastattelujoukko koostui yritysten edustajista, tutkimus-henkilöstÃstä sekä julkisista toimijoista. Innovaatiojärjestelmä oli avoin uusille toimintamenetelmille.Menetelmien toteuttamistapa kuitenkin jakoi mielipiteitä. Toimijoiden välille tarvitaan parempaa yhteistyötä ja tämän kautta selkeämpää kommunikointia yritysten suuntaan. Innovaatioiden edistämiseen ehdotetaan Innovation Relay Centre tyyppisen toiminnan laajentamista Corridorin alueelle sekä sen käyttämän teknologioiden välittämismallin sekä kansainvälisen verkoston hyödyntämistä. Edistämisen tukena tulisi käyttää innovaatiotietokanta-työkalua.

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In a medieval Barcelonan side-street, urine, rubbish, and a bewildering array of graphic imagery splatters the narrowing walls between two major thoroughfares. A contemporary conflict between residents, unknown artists and others is played out using banners, bottles, stickers, posters, stencils, spray paint, and bodily substances. In this shadowed liminality, local and global debates are superimposed upon substructures constructed from disease, prostitution, and the Saint of the Plague. The continuing urban struggle constitutes temporal statements of dirt and purity, violence and humour, dominance and resistance, death and salvation. Like the renovated facades masking the crumbling remains of structures long neglected, the government’s literal whitewashing of the art is a temporal cover-up of a discursive symptom stretching from deeply embedded preconditions. However, from his niche in the angular bend of the alley bearing his name, the statue of St. Rock remains unblinkingly staring, raised above the contestations expressed below.

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In the beginning of the 1960's, the university education in chemistry, in Brasil, represented only a professional preparation, with no official post-graduate teaching and research, as yet. The name Federal University Rio de Janeiro, evolved, since January 30, 1959, from University of Brazil, RJ, to Federal University of Guanabara, which, on August 20, 1965, became the Federal University of Rio de Janeiro. With the Resolution nº 4, of the University direction, the first Institute of Chemistry was created, to include the Centers of Mathematical and Natural Sciences, and the Medical Sciences. The strictu sensu's system was established only in 1961.

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Tutkimuksen tavoitteena on selvittää tarkoituksenmukaisin etabloitumismenetelmä teräsyhtiön kansainvälistymisessä Pietarin markkinoille. Vaikka kansainvälistymistä onkin tutkittu paljon, kyseisen kontekstin erityispiirteisiin on aiemmissa tutkimuksissa kiinnitetty vain vähän huomiota. Kansainvälistymisteorioista työhön valittiin John Dunningin eklektinen paradigma sekä Uppsala-malli. Etabloitumismenetelmän valintaa puolestaan tarkastellaan eri vaihtoehtojen kautta, jotka kattavat viennin, suorat ulkomaan investoinnit, sopimusjärjestelyt sekä yhteisyrityksen. Valintaa selitetään taustalla vaikuttavien tekijöiden sekä kansainvälistymisprosessin kautta. Kohteena olevan markkina-alueen potentiaalin, ongelmien sekä yrityksen kilpailuetujen arvioinnin jälkeen ehdotetaan optimaalista ratkaisua. Omat haasteensa operaatiomuodon valintaan luovat potentiaalinen mutta haastava kohdemarkkina-alue sekä yrityksen sisäiset tekijät. Kontekstiin parhaiten sopivaksi etabloitumismenetelmäksi esitetään aloittamista välittömällä viennillä asiakkaiden etsimiseksi ja suhteiden luomiseksi. Kun asiakkuuksia alueella on riittävästi, myyntikonttorin perustaminen Pietarin lähelle nähdään tarkoituksenmukaisena paikallisen läsnäolon lisäämiseksi. Empiirinen data kattaa kahdeksan asiantuntijahaastattelua, jotka yhdessä muun lähdeaineiston kanssa rakentavat perustan empiirisille tuloksille. Tutkimuksen tulokset tarjoavat yritykselle perustellun ratkaisuehdotuksen siitä, kuinka Pietarin markkinoille tulisi etabloitua.

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Presentation of Janet Aucock, at the FinELib Consortium Seminar (Aineistopäivä), April 16, 2015 in Helsinki.

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