Browsing Science (Faculty of) by Title
Now showing items 2155-2174 of 3011
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Preparation of Ruthenium and Iridium Pincer-Type Pyridylidenes
(University of Waterloo, 2009-08-31)A new POCOP pincer-type ligand was synthesized and characterized. This new ligand gave rise to the first POCOP pyridylidene pincer-type ruthenium and iridium complexes. Investigations into structural and electronic parameters ... -
Preparative isolation, fractionation and chemical characterization of dissolved organics from natural and industrially derived bitumen-influenced groundwaters from the Athabasca River watershed
(Elsevier, 2021-07-10)Recent analytical advances have provided evidence that groundwater affected by oil sands process-affected water (OSPW) is reaching the Athabasca River at one location. To understand and discriminate the toxicological risks ... -
Preparing and Tuning the Reactivity of Palladium Carbenes and an Unusual Catalytic Isomerization of Diphenylcyclopropanes
(University of Waterloo, 2007-09-26)The preparation of palladium carbene intermediates from diphenylketene is proposed. Experiments to trap these intermediates with alkenes have been conducted and optimized, with cyclopropanes being prepared in up to 69% ... -
Preparing Nanotubes via Polymerization of Diacetylene Functionality Containing Carbon-based Macrocycles
(University of Waterloo, 2013-09-05)Nanofibers and nanotubes have been extensively studied in materials science due to their extraordinary thermal conductivity, excellent mechanical and electrical properties, and their potential capability for gas storage. ... -
Preschool children's vision screening in New Zealand: a retrospective evaluation of referral accuracy
(BMJ Publishing Group, 2015-11-27)Objectives To assess the accuracy of preschool vision screening in a large, ethnically diverse, urban population in South Auckland, New Zealand. Design Retrospective longitudinal study. Methods B4 School Check vision ... -
Prevalence of Convergence Insufficiency-Type Symptomatology in Parkinson’s Disease
(Cambridge University Press, 2017-09)Background: Individuals with Parkinson’s disease (PD) often present with visual symptoms (e.g., difficulty in reading, double vision) that can also be found in convergence insufficiency (CI). Our objective was to estimate ... -
Prevalence of Potentially Inappropriate Medications Use Among Recently Admitted Geriatric Patients in Rural Hospitals
(University of Waterloo, 2014-12-11)Potentially inappropriate medications (PIMs) are prescribed most often to elderly patients and can cause serious adverse effects. Older adults tend to use multiple medications, and age-related physiological changes can ... -
Primary and Auxiliary Subunits of Sodium Channel Nav1 in Lymnaea Stagnalis
(University of Waterloo, 2014-11-24)Voltage gated sodium channels (Nav ) are major contributors in the neuronal signal transduction, responsible for the action potential upstroke. They are members of the large 4x6 ion channel family, which also include the ... -
Primary Production by Phytoplankton in Lake Simcoe 2010-2011
(University of Waterloo, 2013-05-07)Degradation of water quality, introduction of dreissenid mussels (notably <i>Dreissena polymorpha</i>) and depletion of oxygen concentrations in the hypolimnion in Lake Simcoe, Ontario prompted a study of phytoplankton ... -
A priori discretization error metrics for distributed hydrologic modeling applications
(Elsevier, 2016-12-01)Watershed spatial discretization is an important step in developing a distributed hydrologic model. A key difficulty in the spatial discretization process is maintaining a balance between the aggregation-induced information ... -
Probing Accretion Turbulence in the Galactic Centre with EHT Polarimetry
(University of Waterloo, 2019-01-09)We explore the origin and the influence of the interstellar scattering on the observation of Sgr A*, and the method to mitigate this scattering via Event Horizon Telescope (EHT) polarimetry. Interstellar scattering is due ... -
Probing Dark Matter from the Galaxy to the Cosmic Web
(University of Waterloo, 2020-01-23)Dark matter, although invisible, accounts for the majority of matter of the universe. How this invisible component affects cosmic structure formation is one of the primary lines of inquiry in physical cosmology, and the ... -
Probing High Energy Physics Through Gravitational Waves
(University of Waterloo, 2021-09-22)Over the last few years, gravitational wave detections have become ubiquitous, giving the physics community vast information about fundamental physics. As some of the universe’s highest energy events, neutron mergers ... -
Probing Long-Range Polymer Chain Dynamics of Poly(L-lysine) in Aqueous Solution by Fluorescence
(University of Waterloo, 2011-02-24)Information about long-range polymer chain dynamics (LRPCD) can be obtained by attaching a luminophore and its quencher onto a polymer and monitoring the rate at which the luminophore is quenched. Since a quenching event ... -
Probing Side Chain Dynamics of Branched Macromolecules by Pyrene Excimer Fluorescence
(American Chemical Society, 2016-01-12)Four different pyrene-labeled polymers were prepared by radical copolymerization of n-butyl methacrylate (BMA) and 1-pyrenemethyl methacrylate (PyEG(0)-MA), 1-pyrenemethoxyethyl methacrylate (PyEG(1)-MA), 1-pyrene-methox ... -
Probing Surface Spin Interaction Dynamics using Nitrogen-Vacancy Center Quantum Sensors with High-Fidelity State-Selective Transition Control
(University of Waterloo, 2017-11-21)As a demand from developing nanotechnology and quantum information technology based on mesoscopic material, quantum sensors with better spatial resolution and sensitivity are required. However, few material meets the ... -
Probing the dark universe with gravitational lensing
(University of Waterloo, 2018-09-17)Since its early success as an experimental test of the theory of general relativity in 1919, gravitational lensing has come a long way and is firmly established as an indispensable element for many astrophysical applications. ... -
Probing the Electronic and Magnetic Properties of Transparent Semiconductor Nanowires using X-ray Absorption Spectroscopic Methods
(University of Waterloo, 2015-12-16)Control of electron spins in individual magnetically doped semiconductor nanostructures has considerable potential for quantum information processing and storage. The manipulations of dilute magnetic interactions have ... -
Probing the Environmental Dependence of Star Formation in Satellite Galaxies using Orbital Kinematics
(University of Waterloo, 2013-09-03)(Abridged) Physical processes regulating star formation in satellite galaxies represent an area of ongoing research, but the projected nature of observed coordinates makes separating different populations of satellites ... -
Probing the Interactions between Mimics of Pour Point Depressants (PPDs) and Viscosity Index Improvers (VIIs) in Engine Oil Using Fluorescently Labeled PPDs
(American Chemical Society, 2019-03-18)The level of interpolymeric interactions experienced by a pyrene-labeled poly(octadecyl methacrylate) labeled with 6.7 mol% of 1-pyrenebutanol (Py(6.7)-PC18MA) was characterized by fluorescence in the presence of an amorphous ...