24 resultados para Fire officers
em Brock University, Canada
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Pictured here from left to right - Back Row: John Burtniak, Cataloguing. Nick Krenton, Head Cataloguing. Front Row: Sylvia Osterbind, Reference. Arthur Vespry, Chief Librarian. Mara Karnupe, Technical Services. Dianna Kertland, Circulation.
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Fire blight is an economically important disease of apples and pears that is caused by the
bacterium Erwinia amylovora. Control of the disease depends on limiting primaly blosson1
infection in the spring, and rapidly removing infected tissue. The possibility of using phages to
control E.amylovora populations has been suggested, but previous studies have. failed to show
high treatment efficacies. This work describes the development of a phage-based biopesticide
that controls E. amylovora populations under field conditions, and significantly reduces the
incidence of fire blight.
This work reports the first use ofPantoea agglomerans, a non-pathogenic relative ofE.
amylovora, as a carrier for E. amylovora.phages. Its role is to support a replicating population of
these phages on blossom surfaces during the period when the flowers are most susceptible to
infection. Seven phages and one carrier isolate were selected for field trials from existing
collections of 56 E. amylovora phages and 249 epiphytic orchard bacteria. Selection of the .
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phages and carrier was based on characteristics relevant to the production and field perfonnance
of a biopesticide: host range, genetic diversity, growth under the conditions of large-scale
production, and the ability to prevent E. amylovora from infecting pear blossoms. In planta
assays showed that both the phages and the carrier make significant contributions to reducirig the
development of fire blight symptoms in pear blossoms.
Field-scale phage production and purification methods were developed based on the
growth characteristics of the phages and bacteria in liquid culture, and on the survival of phages
in various liquid media.
Six of twelve phage-carrier biopesticide treatments caused statistically signiflcant reductions in disease incidence during orchard trials. Multiplex real-time PCR was used to
simultaneously monitor the phage, carrier, and pathogen populations over the course of selected
treatments. In all cases. the observed population dynamics of the biocontrol agents and the
pathogen were consistent with the success or failure of each treatment to control disease
incidence. In treatments exhibiting a significantly reduced incidel1ce of fire blight, the average
blossom population ofE.amylovora had been reduced to pre-experiment epiphytic levels. In
successful treatments the phages grew on the P. agglomerans carrier for 2 to 3 d after treatment
application. The phages then grew preferentially on the pathogen, once it was introduced into this
blossom ecosystem. The efficacy of the successful phage-based treatnlents was statistically
similar to that of streptomycin, which is the most effective bactericide currently available for fire
blight prevention.
The in planta behaviour ofE. amylovora was compared to that ofErwinia pyrifoliae, a
closely related species that causes fire blight-like synlptoms on pears in southeast Asia. Duplex
real-time PCR was used to monitor the population dynamics of both species on single blossonls.
E. amylovora exhibited a greater competitive fitness on Bartlett pear blossoms than E. pyrifoliae.
The genome ofErwinia phage
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"Certain of these orders ... have been printed in Col. E. Cruikshank's Documentary history of Niagara." Created on behalf of the Women's Canadian Historical Society of Toronto
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Ordered to be printed 10th May 1813.
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Discusses the half pay and pensions of Officers living within His Majesty's Dominions. At the bottom, there is also a comment made by Robert Morrogh to Daniel Shannon concerning the above notice.
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The Intelligencer was an American newspaper that was established, in 1800, in Washington by Samuel Harrison Smith, a young Jeffersonian- Republican from Philadelphia. War of 1812 related content includes: Page 1: Major General Winfield Scott's arrival in Washington escorted by Colonel Laval's cavalry; report from Sackett's Harbour on the American and British navies; a debate on a bill to temporarily remove the seat of government from the City of Washington due to the war; the Military Committee wishing to have the President commission gold medals for distinguished service for Major Generals Brown and Scott and silver medals to Brigadier Generals Ripley, Miller and Porter for their efforts at Chippewa, Erie and Niagara as well as gold medals to Brigadier General Gaines for efforts at Erie and Brigadier General Macomb for efforts at Plattsburg; resolutions of the House on the victory of Commodore Thomas Macdonough at the Battle on Lake Champlain; Page 2: more detail on the proposed removal of the seat of government from Washington; Page 3: a letter from Major General Andrew Jackson to the Secretary of War on repelling the British at Fort Bowyer on the Point of Mobile and naval battle reports on the vessels Hermes, Sophie, and Carron; a letter from Major William Lawrence to Andrew Jackson on the battle at Fort Bowyer; military promotions of Alexander Macomb, Roger Jones, J. Hindman; more on the removal of the seat of government; citizens of Washington offering to volunteer in defense of the city; banks willing to loan the government funds to re-build destroyed government buildings; assignments of Major General Scott, General Winder and Major General Gaines; report of 300 British prisoners from Fort Erie passed through Washington; Montreal newspaper report condemning Provost for his actions at the Battle of Lake Champlain; trouble with stage coaches traveling between New Haven and Bridgeport due to cannon fire; report of a British naval squadron appearing off New Port and by Long Island and New Bedford; report of enemy naval movements from Norfolk; announcement of a book entitled "A Narrative of the Battle of Bladensburg" by and officer of General Smith; Page 4: report on the amassing navy at Kingston under Drummond and the defenses at Sackett's Harbor; report of American and British naval news from Nova Scotia and the east coast; actions of the American sloop of war, The Peacock, in international waters; an enlistment announcement by Captain Perrin Willis of the 2nd Regiment Infantry; listing of American officers and privates released from parole on October 13; Other notices report on stray horses, properties for sale, runaway slaves, imprisonments, missing livestock, medical lectures at the University of Maryland, stage lines, auctions, etc. The paper was a supporter of the Jefferson and Madison administrations until 1810 when it was sold to Joseph Gales Jr. from North Carolina. In 1812 William Seaton joined Gales as a publishing partner. This paper made significant contributions to the nation and wielded considerable influence in political circles during its publication. It has been praised for its "high standard of journalistic excellence and high intellectual level of its contents". (William E. Ames , National Intelligencer: Washington's Leading Political Newspaper) The Intelligencer was, until 1810, named the National Intelligencer, and Washington Advertiser. It was a tri-weekly paper and had a peak circulation of 6, 000. Publication was suspended in 1869.
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Ordered to be printed 10th May 1813.
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Sir George Yonge (1732-1812) was a baronet, politician and colonial governor. He was a Member of Parliament for Honiton from 1754-1761 and 1763-1796, British Secretary at War from 1782-1783 and 1783-1794, and Governor of the Cape colony from 1799-1801.
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An advertisement addressed to the "celebration committees" for May 24th and July 1st. William Hand details his services for fireworks and other lighting. Price ranges are included and reviews/comments quoted from several newspapers.
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A fire insurance policy in the amount of one thousand dollars through Aetna Insurance Company of Utica, New York. The cost of twenty two dollars and twenty five cents would give them a one year insurance policy from August 1851 through August 1852.
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A List of Officers of the reduced Independent Companies who are to receive half pay from the days hereafter mentioned, to the 24th of December 1791, both days inclusive, or to the days of their death or Provision respectively. The document includes 153 names of Captains, Lieutenants, and Ensigns. Among the names are Isaac Brock and his brother Irwin Brock. It is signed by George Yonge.