2,276 research outputs found
Predicting the Position of the Hydrogen Atom in the Short Intramolecular Hydrogen Bond of the Hydrogen Maleate Anion from Geometric Correlations
No full textThe position of the hydrogen atom inside the strong and short intramolecular hydrogen bond of the hydrogen maleate anion strongly varies depending on the crystalline environment. Therefore, it has not been possible in the past to accurately determine it using X-ray diffraction data although there are 292 hydrogen maleate crystal structures with different cations in the literature. In this study, a geometric correlation for the accurate prediction of the hydrogen position in the short intramolecular hydrogen bond is presented. The results used to derive the correlation are obtained from low-temperature neutron-diffraction studies on nine different hydrogen maleate salts that span the whole range from perfectly symmetric to highly asymmetric intramolecular hydrogen bonds. Since the only variable in the correlation as derived from the neutron data is the O···O distance, the hydrogen atom position in question can subsequently be predicted using information that is accurately available from routine X-ray data. The procedure is tested using high-resolution low-temperature synchrotron X-ray diffraction structures of the same compounds, before it is applied to X-ray data sets found in the literature in which the hydrogen atom position was not determined accurately or not determined at all, e.g., using a riding model
Supplementary_Material – Supplemental material for Machine Learning Methods Predict Individual Upper-Limb Motor Impairment Following Therapy in Chronic Stroke
No full textSupplemental material, Supplementary_Material for Machine Learning Methods Predict Individual Upper-Limb Motor Impairment Following Therapy in Chronic Stroke by Ceren Tozlu, Dylan Edwards, Aaron Boes, Douglas Labar, K. Zoe Tsagaris, Joshua Silverstein, Heather Pepper Lane, Mert R. Sabuncu, Charles Liu and Amy Kuceyeski in Neurorehabilitation and Neural Repair</p
Audio Interview with Mr. Jefferson Davis Edwards
No full textAudio - Mr. Edwards discusses immigrating to Alberta due to segregation in the United States. He recounts the early history, leaders and locations of black settlements in Alberta. He reveals how Amber Valley got its name along with descriptions of early social activities such as picnics and Sunday School. Freighting, the post office, the Hudson's Bay and various other businesses and social activities are also described (20 minutes)Interview of Mr. J.D. Edwards in April 1961, re-recorded by R. Tannas March 1980, from Reel to Reel to Cassette. Mr. Edwards is approximately 73 years of age at time of interview and recalls numerous details
Surface impoundment assessment for the State of Oregon: report to the Environmental Protection Agency
No full textThis archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Title from cover."The Environmental Protection Agency (EPA) undertook the nationwide Surface Impoundment Assessment (SIA) in order to locate and assess natual or man-made pits, ponds, or lagoons whose intended purpose the treatment, storage and/or disposal of liquid waste. An evaluation of potential ground-water contamination was the primary goal"--Page 1-1.Includes bibliographical references."The SIA progam in Oregon was conducted by Sweet, Edwards and Associates under contract to Oregon Department of Environmental Quality".Mode of access: Internet from the Oregon Government Publications Collection.Text in English
The Pairing Computation on Edwards Curves
No full textWe propose an elaborate geometry approach to explain the group law on twisted Edwards curves which are seen as the intersection of quadric surfaces in place. Using the geometric interpretation of the group law, we obtain the Miller function for Tate pairing computation on twisted Edwards curves. Then we present the explicit formulae for pairing computation on twisted Edwards curves. Our formulae for the doubling step are a little faster than that proposed by Arene et al. Finally, to improve the efficiency of pairing computation, we present twists of degrees 4 and 6 on twisted Edwards curves.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000327116200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Engineering, MultidisciplinaryMathematics, Interdisciplinary ApplicationsSCI(E)EI1ARTICLEnull201
Functional analysis of sorsby's fundus dystrophy mutant TIMP-3
No full textBibliography: p. 216-24
The expression of tissue inhibitor of matrix metalloproteinase-2 in activated T cells: Role in Tcell growth modulation
No full textBibliography: p. 167-21
Tissue inhibitors of metalloproteinases in human malignant gliomas
No full textBibliography: p. 119-12
The potential role of the proto-oncogene c-myc in the regulation of the matrix metalloproteinase gelatinase B
No full textBibliography: p. 127-141
Pairing Computation on Edwards Curves with High-Degree Twists
No full textElliptic curve can be seen as the intersection of two quadratic surfaces in space. In this paper, we used the geometry approach to explain the group law for general elliptic curves given by intersection of two quadratic surfaces, then we construct the Miller function over the intersection of quadratic surfaces. As an example, we obtain the Miller function of Tate pairing computation on twisted Edwards curves. Then we present the explicit formulae for pairing computation on Edwards curves. Our formulae for the doubling step are a littler faster than that proposed by Arene et al.. Moreover, when j = 1728 and j = 0 we consider quartic and sextic twists to improve the efficiency respectively. Finally, we present the formulae of refinements technique on Edwards curves to obtain gain up when the embedding degree is odd.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000345588100012&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701Computer Science, Theory & MethodsEICPCI-S(ISTP)
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