14 resultados para FT-ICR

em Brock University, Canada


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ZnF2, CdF2, and CUF2 have been adsorbed onto the surface of montmorillonite K10, and the infrared and 19F, 27 AI, and 29Si MAS NMR spectra of the reagents over a range of loadings have been obtained. CUF2 was observed to attack the Si02 layer and form the complex CuSiF6, Zn F2 tends to attack the aluminium oxide layer, in which Zn isomorphously replaces AI, and forms AIF3 and AIF4 - complexes. All the spectroscopic evidence ruled out the formation of any AI-F and/or Si-F free species as CdF2 is adsorbed on the surface of montmorillonite K10. The reactivity of MF2-K10 reagents towards Friedel-Crafts benzylation of benzene with benzyl chloride varied from one reagent to another. ZnF2-K10 was observed to be the most reactive and CUF2 was the least reactive.

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Sedjrrlents deposited in the Late Quaternary marine sUbrnergences that follov'ted the deglaciation of Ontario} Quebec., and 6ritlst-1 Columbia often contaln an abundant nlarlne invertebrate macrofauna. The rnacrofauna~ dotYllnated by aragonitic pelecypods} is fully preserved In their original mineralogy and cherrlistry 8S deternl1ned by x-ray dlffractlon., scannlng electron tl-,lcroscoDY., trace and r1l1 nor elet11ent analyses and stable isotopes. Ttle trace elernent and stable isotope geochen-Ilstry of chernlcal1y unaltered aragorlitlc molluscs can be used to determine paleoter1-lperatures and paleosallnltles." HO\Never} corrections need to be tllade \fvtlen deterrTIlnlng oxygen-isotope paleotenlperi:ttures due to the lnfluence of isotopically 11gtlt glaciol rneltv-laters and reduced sal1nltles. Ttle eastern Laurentide Ice Sheet probably had an o:~ygen lS0tOP1C composition as low as -8e) 0/00 (Sr1[IW). In additl0fl} corrections need to be rnade to the carbonlsotope values, before salinity deterrnlnatlons are t11ade., due to the reJjuctlon of the terrestrial carbon bl0rnass during glac1al maxlrna. Using geochernlcal data frot11 537 marlne n-'8crolnvertebrates frorTI 72 localities in soutt-,easter Ontarl0 and southern Quebec, it tras been deterrnined that the Late Quaternary Char1lplaln Sea \N6S density stratified along salinity and temperatlJre gradients. The deep-\h/aters of tt-,e Charnplaln Sea tlad salinities that ranged frorn 31 to 36 ppt} and terrlperatures of 00 to 5°C. Conversely.. the st1alloy./-\f*later regirrle of ttle Ctlarnplaln Sea tlad sal1nltles that ranged fron-, 24 to 33 ppt} Y.tltt1 terrlperatures ranglng from 5° to 15°C. Tr,8 rrlajorl rnlnor1 and trace e1et1-,ent geochernlcal analysls of 155 marine lnvertebrates frorn 4 10C611t1es of tt-,e Late Quaternary Ft. Langley Forrnatlon and Capl1ano Sedlments;. souttl\Nestern Brltlsh Columblal suggest l t~lat the 'waters of the o-,arlne lnundation that fol1o....ved the retreating Cordl11eran Ice Sheet had sal1nltles ranglng frorn 32 to 3f. DPt.

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ABSTRACT Canada is an aging society. The number of people aged sixty-five and over is rising, while the number of people under twenty is declining. These two concurrent changes in the age structure have produced a sh~ft in the demographic composition of Canada which is commonly referred to as the aging phenomenon. Regardless of whether or not the number of people under twenty continues to decline, the number of elderly in Canada will almost double over the next twenty years. This rapidly growing elderly clientele will doubtless have an impact on Canadian governments. Federal, provincial and municipal governments are presently providing a variety of programs that have a special bearing on the aged and most senior citizens are beneficiaries of one or more of these programs. The ramifications of a rapidly growing elderly clientele are obvious. In order to cope with the impact of a significant increase in the number of elderly persons, the development and implementation of aging policy must be co-ordinated at each level of government and between and among levels of government. If aging policy is not co-ordinated, the results are likely to be: inappropriate policy decisions; duplication and overlap; and, ineffective and irresponsive services. No one benefits from these results. The need for co-ordination is apparent. The purpose of this thesis is to examine existing governmental efforts to co-ordinate policy in the field of aging. These efforts are examined by focusing on interactions directed at co-ordination between and among major actors in aging policy. A framework is used to structure the description and analysis of these interactions. The variables of formalisation and intensity and the concept of power are instrumental in analysing interactions for co-ordination. The underlying intent of this thesis is to discover some of the main gaps in existing governmental efforts to co~ordinate aging policy. Gaps are, in fact, discovered. Several explanations for the existence of gaps in interactions for co-ordination are discussed. A major hypothesis involving a relationship between a bureaucratic form of organisation and interactions for coordination is suggested. Finally, three recommendations for improving co-ordination in aging policy are offered.

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Calculations are performed on the \S <:Jd ground states of d ' + the H and HC) molecules using a basis set of non-integral ~ ~ I elliptical orbitals. Different variational wavefunctions constructed i- for H~ involved one parameter to three par~~eter variation. In order to l"'educe the ntunber of parameters in most commonly 0- used basis orbitals set, the importance of the term (,+~) Y\ over the term ;u 'Where n is a variational pararneter and the value of cr may be given by boundary condition or cusp condition is outlined in Chapters II and III. It is found that the two parameter -+

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A naturally occurring population of photosynthetic bacteria, located in the meromictic Crawford Lake, was examined during two field seasons (1979-1981). Primary production, biomass, light intensity, lake transparency, pH and bicarbonate concentration were all monitored during this period at selected time intervals. Analysis of the data indicated that (l4C) bacterial photosynthesis was potentially limited by the ambient bicarbonate concentration. Once a threshold value (of 270 mg/l) was reached a dramatic (2 to 10 fold) increase in the primary productivity of the bacteria was observed. Light intensity appeared to have very little effect on the primary productivity of the bacteria, even at times when analyses by Parkin and Brock (1980a) suggested that light intensity could be limiting (i.e., 3.0-5.0 ft. candles). Shifts in the absorption maxima at 430 nrn of the .bacteriochlorophyll spectrum suggested that changes in the species or strain composition of the photosynthetic bacteria had occurred during the summer months. It was speculated that these changes might reflect seasonal variation in the wavelength of light reaching the bacteria. Chemocline erosion did not have the same effect on the population size (biomass) of the photosynthetic bacteria in Crawford Lake (this thesis) as it did in Pink Lake (Dickman, 1979). In Crawford Lake the depth of the chemocline was lowered with no apparent loss in biomass (according to bacteriochlorophyll data). A reverse current was. proposed to explain the observation. The photosynthetic bacteria contributed a significant proportion (10-60%) of the lake1s primary productivitya Direct evidence was obtained with (14C) labelling of the photosynthetic bacteria, indica.ting that the zooplankton were grazing the photosynthetic bacteria. This indicated that some of the photosynthetic bacterial productivity was assimilated into the food chain of the lake. Therefore, it was concluded that the photosynthetic bacteria made a significant contribution to the total productivity of Crawford Lake.

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The streams flowing through the Niagara Escarpment are paved by coarse carbonate and sandstone sediments which have originated from the escarpment units and can be traced downstream from their source. Fifty-nine sediment samples were taken from five streams, over distances of 3,000 to 10,000 feet (915 to 3050 m), to determine downstream changes in sediment composition, textural characteristics and sorting. In addition, fluorometric velocity measurements were used in conjunction with measured -discharge and flow records to estimate the frequency of sediment movement. The frequency of sediments of a given lithology changes downstream in direct response to the outcrop position of the formations in the channels. Clasts derived from a single stratigraphic unit usually reach a maximum frequency within the first 1,000 feet (305 m) of transport. Sediments derived from formations at the top of waterfalls reach a modal frequency farther downstream than material originating at the base of waterfalls. Downstream variations in sediment size over the lengths of the study reaches reflect the changes in channel morphology and lithologic composition of the sediment samples. Linear regression analyses indicate that there is a decrease in the axial lengths between the intial and final samples and that the long axis decreases in length more rapidly than the intermediate, while the short axis remains almost constant. Carbonate sediments from coarse-grained, fossiliferous units - iii - are more variable in size than fine-grained dolostones and sandstones. The average sphericity for carbonates and sandstones increases from 0.65 to 0.67, while maximum projection sphericity remains nearly constant with an average value of 0.52. Pebble roundness increases more rapidly than either of the sphericity parameters and the sediments change from subrounded to rounded. The Hjulstrom diagram indicates that the velocities required to initiate transport of sediments with an average intermediate diameter of 10 cm range from 200 cm/s to 300 cm/s (6.6 ft./sec. to 9.8 ft./sec.). From the modal velocitydischarge relations, the flows corresponding to these velocities are greater than 3,500 cfs (99 m3s). These discharges occur less than 0.01 p~r cent (0.4 days) of the time and correspond to a discharge occurring during the spring flood.

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The synthesis of 3-ethynylthienyl- (2.07), 3-ethynylterthienyl- (2.19) substituted qsal [qsalH = N-(8-quinolyl)salicylaldimine] and 3,3' -diethynyl-2,2' -bithienyl bridging bisqsal (5.06) ligands are described along with the preparation and characterization of eight cationic iron(III) complexes containing these ligands with a selection of counteranions [(2.07) with: SCN- (2.08), PF6- (2.09), and CI04- (2.10); (2.19) with PF6 - (2.20); (5.06) with: cr (5.07), SeN- (5.08), PF6- (5.09), and CI04- (5.10)]. Spin-crossover is observed in the solid state for (2.08) - (2.10) and (5.07) - (5.10), including a ve ry rare S = 5/2 to 3/2 spin-crossover in complex (2.09). The unusal reduction of complex (2.10) produces a high-spin iron(I1) complex (2.12). Six iron(II) complexes that are derived from thienyl analogues of bispicen [bispicen = bis(2-pyridylmethyl)-diamine] [2,5-thienyl substituents = H- (3.11), Phenyl- (3.12), 2- thienyl (3.13) or N-phenyl-2-pyridinalimine ligands [2,5-phenyl substituents = diphenyl (3.23), di(2-thienyl) (3.24), 4-phenyl substituent = 3-thienyl (3.25)] are reported Complexes (3.11), (3.23) and (3.25) display thermal spin-crossover in the solid state and (3.12) remains high-spin at all temperatures. Complex (3.13) rearranges to form an iron(II) complex (3.14) with temperature dependent magnetic properties be s t described as a one-dimensional ferromagnetic chain, with interchain antiferromagnetic interactions and/or ZFS dominant at low temperatures. Magnetic succeptibility and Mossbauer data for complex (3.24) display a temperature dependent mixture of spin isomers. The preparation and characterization of two cobalt(II) complexes containing 3- ethynylthienyl- (4.04) and 3-ethynylterhienyl- (4.06) substituted bipyridine ligands [(4.05): [Co(dbsqh(4.04)]; (4.07): [Co(dbsq)2(4.06)]] [dbsq = 3,5-dbsq=3,5-di-tert-butylI ,2-semiquinonate] are reported. Complexes (4.05) and (4.07) exhibit thermal valence tautomerism in the solid state and in solution. Self assembly of complex (2.10) into polymeric spheres (6.11) afforded the first spincrossover, polydisperse, micro- to nanoscale material of its kind. . Complexes (2.20), (3.24) and (4.07) also form polymers through electrochemical synthesis to produce hybrid metaUopolymer films (6.12), (6.15) and (6.16), respectively. The films have been characterized by EDX, FT-IR and UV-Vis spectroscopy. Variable-temperature magnetic susceptibility measurements demonstrate that spin lability is operative in the polymers and conductivity measurements confirm the electron transport properties. Polymer (6.15) has a persistent oxidized state that shows a significant decrease in electrical resistance.

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Survey map and description of the land belonging to the Welland Canal Company at Dunnville. Created by The Welland Canal Company. Included is a written description of the land along with a drawing of the land. There are two seperate surveys done for the lands: Survey #1 (Pp. 148-149) noteable features include; the Grand River, the original boundry of the Grand River, marsh overflow, marsh, feeder river, bridge, Broad street, Lock street, Main street, embankment, dam (600 ft.), lines between lots, reserve for the ships yard, reserve for lock and dry dock, lands occupied by the canal and towpath to guard gate. The land totals 9 acres, and 3 roads, including the street. Survey #2 (Pp. 150-151) completed by George Keefer noteable features include; embankment, marsh overflow, original channel of the Grand River, salt spring, bridges, wier, proposed waste wier, Van Riper's home, proposed bridge, sulphur spring, road, Sulphur Creek, division between lots 12-17. The land totals 27 acres, and 2 perches. Surveyors notes can be seen in pencil and red ink on the survey.See also Pp. 148-151

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This newspaper was published bi-weekly from June 1812 to September 1814 by S. Woodworth and Co. in New York. Editor Samuel Woodworth formed the content of the newspaper using official documents from both the American and British side with the intention to report the events of the war. Article topics in this issue include: Page 1: Letter from Maj. Gen. Van Rensselaer to Maj. Gen. Henry Dearborn describing in detail the battle of Queenston; Page 2: Letter from Maj. Gen. Van Rensselaer to Maj. Gen. Henry Dearborn describing in detail the battle of Queenston; report of U.S. war sloop Wasp capturing the British war ship Frolic and the subsequent capture of the Wasp by another British war ship, Poictiers; copy of statement by U.S. President James Madison detailing battles in Detroit, Queenston, and his plans for the war; Page 3: copy of statement by U.S. President James Madison detailing battles in Detroit, Queenston, and his plans for the war; Page 4: copy of statement by U.S. President James Madison detailing battles in Detroit, Queenston, and his plans for the war; U.S. President James Madison promotes Capt. Z. Taylor to rank of Major for his part in defense of Ft. Harrison; report of various Naval movements;

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The "Columbian" was established by Mr. Holt in 1808 as an "organ of the Clintonians" (Journalism in the United States, from 1690-1872 By Frederic Hudson) and a replacement to the "Citizen". It was a passionate Democratic paper that supported both Jefferson and Madison. Holt later sold the "Columbian" to Alden Spooner, who published the Long Island "Star". The Columbian ceased in 1821. This issue includes the following War of 1812 topics: Page 2: copies of letters from U.S. Gen. H. Dearborn describing the U.S. attack on Ft. George 27 May 1813; letter from Gen. H. Dearborn describing U.S. pursuit of British troops at Beaver Dams and the U.S. capture of Fort Erie; list of U.S. killed and wounded in Commodore Isaac Chauncey's squadron in attack on York 27 April, 1813; list of killed and wounded in Commodore Isaac Chauncey's squadron in attack on Ft. George 27 May 1813; abstract of the cartel for the exchange of prisoners of war between Great Britain and the United States; mention of troop movements through New York on their way to the battle front; list of persons killed or lost on the privateer Saratoga; Page 3: account of the loss of the U.S. war ships the Growler and Eagle to the British; news from Quebec and Kingston of troop movements; U.S. ship Syren unsuccessfully pursues British ship Herald; account of a U.S. cargo ship being captured by a British military ship; account of U.S. ship Siro capturing British ship Loyal Sam; report from Halifax of recent British troop and ship movements; list of recent troop enrollments in various states; report of British troop build up in Kingston;

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Volumes of interest were published between 1812 and 1815 with articles about the War of 1812. Issue for June 12, 1813 includes copies of letters from U.S. Gen. H. Dearborn describing the U.S. attack on Ft. George 27 May 1813; letter from Gen. H. Dearborn describing U.S. pursuit of British troops at Beaver Dams and the U.S. capture of Fort Erie; list of U.S. killed and wounded in Commodore Isaac Chauncey’s squadron in attack on York 27 April, 1813; list of killed and wounded in Commodore Isaac Chauncey’s squadron in attack on Ft. George 27 May 1813; abstract of the cartel for the exchange of prisoners of war between Great Britain and the United States; mention of troop movements through New York on their way to the battle front; list of persons killed or lost on the privateer Saratoga; account of the loss of the U.S. war ships the Growler and Eagle to the British; news from Quebec and Kingston of troop movements; report of launching of British ship Sir George Prevost; announcement of sending of 5 American infantry companies to Burlington from Bennington, Vermont; U.S. ship Syren unsuccessfully pursues British ship Herald; account of a U.S. cargo ship being captured by a British military ship; account of U.S. ship Siro capturing British ship Loyal Sam; report from Halifax of recent British troop and ship movements; list of recent troop enrollments in various states; report of British troop build up in Kingston.

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Brock’s Monument is owned by Parks Canada and maintained by the Niagara Parks Commission in collaboration with the Friends of Fort George and Niagara National Historic Sites. It is located in Queenston Heights Park atop the Niagara Escarpment. On March 14, 1815, Parliament passed an act to erect a monument to the memory of General Isaac Brock. A design by engineer Francis Hall was selected. He envisioned a 135 ft. tall Tuscan column, made out of stone with a winding staircase inside. By the spring of 1824, work had begun on the monument. In June of that year, the cornerstone was laid and William Lyon Mackenzie was in attendance at the ceremony. It was on October 13th, 1824 (the anniversary of Brock’s death) that 6000 people traveled to Queenston to inter the remains of Brock and Lieutenant-Colonel Macdonell. This was the second burial for both. After 3 years the tower had reached 135 feet, but there was no inscription at the base, the fence around the observation deck had not been installed and there was no statue of Brock. Hall submitted a plan to finish the statue, but he was turned down and a simple ornament was placed where the Brock statue should have been. A massive blast of gunpowder destroyed the monument in 1840. It is alleged that an American sympathizer with the Upper Canada Rebellion set off the blast. Brock and Macdonell’s bodies were reburied in the Hamilton Family Cemetery in Queenston. The present monument was rebuilt in 1853. William Thomas (designer of St. Michael’s Cathedral in Toronto) was the architect. Brock and Macdonell were once again laid to rest in separate vaults at the statue. In 1968, Brock’s Monument was declared a national historical site. In 2005, it was closed to the public due to safety concerns, but it reopened in 2010. Source: http://www.thecanadianencyclopedia.com/articles/brocks-monument-queenston-heights

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The description reads "(39) Tireless Niagara - Horseshoe Falls from above - U.S.A.". The reverse states "We are standing on the Canadian side of the river, looking S.E. across the enormous curve of the Horseshoe toward the Dufferin Islands on the Canadian side. 'This is close enough. The time will come undoubtedly when no man can reach this point, when the rocks on which we stand will break and crash into the gulf above which they hang. Table Rock one of the best known points about Niagara in the past, used to extend out over the river from the bank just behind us. It was originally very large but great masses, sometimes a hundred feet in length by fifty in width, have broken off at different periods, the last in 1883, until the whole rock is gone. Off to our left is the centre of the Horseshoe. It is easy to see that in that direction the water is going over in a solid mass, thousands of tons each second, to the river 150 feet below. While the amount of water passing over these rocks varies somewhat according to the height of the river. It has been estimated that the average amount is 12,000,000 cubic feet per minute, that is, about 375,000 tons...Since 1842 the whole contour of these falls has been worn away at the rate of about 2 1/10 ft. per year. In the centre of the Horseshoe where the bulk of the water passes, nearly five feet of rock are worn away each year. The falls have receded 100 feet within the memory of the men now living.' From Niagara Through the Stereoscope, with special 'keyed' maps, published by Underwood & Underwood"

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Indenture between Victoria Lawn Cemetery of the Corporation of the City of St. Catharines and Samuel D. Woodruff for 112 sq.ft. known as part of section P. This is deed no. 1905, Oct. 21, 1901.