990 resultados para John II Comnenus, Emperor of the East, 1088-1143.
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Photosynthesis is a process in which electromagnetic radiation is converted into chemical energy. Photosystems capture photons with chromophores and transfer their energy to reaction centers using chromophores as a medium. In the reaction center, the excitation energy is used to perform chemical reactions. Knowledge of chromophore site energies is crucial to the understanding of excitation energy transfer pathways in photosystems and the ability to compute the site energies in a fast and accurate manner is mandatory for investigating how protein dynamics ef-fect the site energies and ultimately energy pathways with time. In this work we developed two software frameworks designed to optimize the calculations of chro-mophore site energies within a protein environment. The first is for performing quantum mechanical energy optimizations on molecules and the second is for com-puting site energies of chromophores in a fast and accurate manner using the polar-izability embedding method. The two frameworks allow for the fast and accurate calculation of chromophore site energies within proteins, ultimately allowing for the effect of protein dynamics on energy pathways to be studied. We use these frame-works to compute the site energies of the eight chromophores in the reaction center of photosystem II (PSII) using a 1.9 Å resolution x-ray structure of photosystem II. We compare our results to conflicting experimental data obtained from both isolat-ed intact PSII core preparations and the minimal reaction center preparation of PSII, and find our work more supportive of the former.
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Indenture of quit claim between John and Nancy Ann Kerlin of the Township of Grantham to Joseph Augustus Woodruff of the Town of Niagara for 100 acres in the west half of Lot no. 29 in the 2nd Concession in the Township of Nissouri, Middlesex, April 29, 1853.
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Indenture of quit claim between John and Deborah Ann McNeilly of the Town of Niagara and Joseph Augustus Woodruff of the Town of Niagara regarding 4 acres on the west side of King Street in Niagara, Dec. 4, 1853.
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Receipt to the Estate of the late J.A. Woodruff from Dr. John Comfort for medical services, Oct. 5, 1886.
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Indenture between Richard Leonard, sheriff of the District of Niagara (regarding lands seized from John Donald McKay) to Robert Dickson. The land consists of ½ an acre located in Lot no. 96 in the Town of Niagara – instrument no. 8600. This was recorded on May 4th, 1832 in Book N, folio 276- 277 in the registry of Lincoln and Haldimand Counties, Oct. 13, 1824.
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Bond (1 page, printed) between John Hammell of the Township of Dumphries, Halton County to William Dickson of Niagara for 117 pounds, 10 shillings and 10 pence, Sept. 21, 1824.
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Agreement (1 page, handwritten note) with sworn affidavits that John Adolphus Nelles would perform the office of poll clerk at an election for the first riding of the County of Lincoln and Erastus Derby and Smith Jackson would perform the office of Constables at an election for the first riding of the County of Lincoln, June 27, 1836.
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Appointment of John B. Parkynn [Parkin] (J.P. Bradley’s brother) to be an Ensign of the 1st Company of the Royal Quebec Volunteers. This is signed by the Governor General, the Earl of Gosford and Governor General, Secretary J. Walcott, Nov. 27, 1837.
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