Browsing Waterloo Research by Title
Now showing items 584-603 of 2275
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Distant agricultural landscapes
(Springer, 2015-04-01)This paper examines the relationship between the development of the dominant industrial food system and its associated global economic drivers and the environmental sustainability of agricultural landscapes. It makes the ... -
Distinction of Individual Lanthanide Ions with a DNAzyme Beacon Array
(American Chemical Society, 2016-06-24)Developing chemical probes to distinguish each lanthanide ion is a long-standing challenge. Aside from its analytical applications, solving this problem will also enhance our knowledge in metal ligand design. Using in vitro ... -
Distributed Robust Vehicle State Estimation
(Institute of Electrical and Electronics Engineers, 2017-06)A distributed estimation approach based on opinion dynamics is proposed to enhance the reliability of vehicle corners’ velocity estimates, which are obtained by an unscented Kalman filter. The corners’ estimates from a ... -
Distribution of priority grassland bird habitats in the Prairie Pothole Region of Canada
(Resilience Alliance, 2018-02-09)Grassland ecosystems and the species that rely on them are one of the most urgent habitat conservation concerns in North America. Fundamental to any landscape conservation efforts is the identification of priority habitats ... -
Distribution planning with random demand and recourse in a transshipment network
(Elsevier, 2020-03)In this paper we consider a distribution planning problem in a transshipment network under stochastic customer demand, to account for uncertainty faced in real-life applications when planning distribution activities. To ... -
Divergent effects of distance versus velocity disturbances on emotional experiences during goal pursuit
(American Psychological Association, 2017-07-01)Disturbances are factors outside of a person’s control that influence goal progress. Although disturbances are typically included in theoretical accounts of goal pursuit, relatively little empirical research has explicitly ... -
Diving into the consumer nutrition environment: A Bayesian spatial factor analysis of neighborhood restaurant environment
(Elsevier, 2018-02-01)Neighborhood restaurant environment (NRE) plays a vital role in shaping residents' eating behaviors. While NRE 'healthfulness' is a multi-facet concept, most studies evaluate it based only on restaurant type, thus largely ... -
DNA Adsorption by Indium Tin Oxide (ITO) Nanoparticles
(American Chemical Society, 2015-01-13)The high conductivity and optical transparency of indium tin oxide (ITO) has made it a popular material in the electronic industry. Recently, its application in biosensors is also explored. To understand its biointerface ... -
DNA adsorption by magnetic iron oxide nanoparticles and its application for arsenate detection
(Royal Society of Chemistry, 2014-05-01)Iron oxide nanoparticles adsorb fluorescently labeled DNA oligonucleotides via the backbone phosphate and quench fluorescence. Arsenate displaces adsorbed DNA to increase fluorescence, allowing detection of arsenate down ... -
DNA Adsorption by ZnO Nanoparticles near Its Solubility Limit: Implications for DNA Fluorescence Quenching and DNAzyme Activity Assays
(American Chemical Society, 2016-06-07)Zinc oxide (ZnO) is a highly important material, and Zn2+ is a key metal ion in biology. ZnO and Zn2+ interconvert via dissolution and hydrolysis/condensation. In this work, we explore their interactions with DNA, which ... -
DNA duplex stabilization in crowded polyanion solutions
(Royal Society of Chemistry, 2013-02-14)The melting temperature of duplex DNA is much higher in polyanions than in non-ionic polymers with similar ionic strength, suggesting an additional electrostatic contribution on top of the excluded volume effect. -
DNA stabilized fluorescent metal nanoclusters for biosensor development
(Elsevier, 2014-03-22)Fluorescent silver, gold and copper nanoclusters (NCs) have emerged for biosensor development. Compared to semiconductor quantum dots, there is less concern about the toxicity of metal NCs, which can be more easily conjugated ... -
DNA stabilized silver nanoclusters for ratiometric and visual detection of Hg2+ and its immobilization in hydrogels
(Elsevier, 2013-04-11)DNA oligomers are particularly interesting templates for making silver nanoclusters (AgNCs) as different emission colors can be obtained by varying the DNA sequence. Many AgNCs have been used as Hg2+ sensors since Hg2+ ... -
DNA templated fluorescent gold nanoclusters reduced by Good’s buffer: from blue emitting seeds to red and near infrared emitters
(NRC Research Press, 2015-01-22)DNA-templated fluorescent gold nanoclusters (AuNCs) have been recently prepared showing higher photostability than the silver counterpart. In this work, we examined the effect of pH, DNA length, DNA sequence, and reducing ... -
DNA-Functionalized Gold Nanoparticles in Macromolecularly Crowded Polymer Solutions
(American Chemical Society, 2012-11-15)DNA-functionalized gold nanoparticles (AuNPs) are one of the most commonly used reagents in nanobiotechnology. They are important not only for practical applications in analytical chemistry and drug delivery, but also for ... -
DNA-Functionalized Monolithic Hydrogels and Gold Nanoparticles for Colorimetric DNA Detection
(American Chemical Society, 2010-12-22)Highly sensitive and selective DNA detection plays a central role in many fields of research, and various assay platforms have been developed. Compared to homogeneous DNA detection, surface-immobilized probes allow washing ... -
DNA-Length-Dependent Fluorescence Signaling on Graphene Oxide Surface
(Wiley, 2012-02-10)Fluorescence energy transfer to graphene oxide is studied using covalently linked DNA probes ranging from 4 to 70 base pairs. The characteristic distance and mechanism of energy transfer are reported. -
DNAzyme Hybridization, Cleavage, Degradation and Sensing in Undiluted Human Blood Serum
(American Chemical Society, 2015-04-07)RNA-cleaving DNAzymes provide a unique platform for developing biosensors. However, a majority of the work has been performed in clean buffer solutions, while the activity of some important DNAzymes in biological sample ... -
A DNAzyme requiring two different metal ions at two distinct sites
(Oxford University Press, 2015-12-10)Most previously reported RNA-cleaving DNAzymes require only a single divalent metal ion for catalysis. We recently reported a general trivalent lanthanide-dependent DNAzyme named Ce13d. This work shows that Ce13d requires ... -
Do school physical activity policies and programs have a role in decreasing multiple screen time behaviours among youth?
(Elsevier, 2017-11-29)Screen time in youth has been associated with a wide range of poor health outcomes. Evidence indicates the need to develop physical activity (PA) school policies and programs that are aimed at decreasing youth screen time ...