Citations Only: Recent submissions
Now showing items 681-700 of 990
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ATP-Dependent colchicine transport by human erythrocyte glutathione conjugate transporter
(Elsevier: Toxicology and Applied Pharmacology, 1999-03)We have recently demonstrated mutually inhibitory ATP-dependent transport of dinitrophenyl-S-glutathione (DNP-SG) and doxorubicin by DNP-SG ATPase purified from human erythrocyte membranes (S. Awasthi et al., 1998a,b). Our ... -
An organism-specific method to rank predicted coding regions in Trypanosoma brucei
(Oxford University Press: Nucleic Acids Research, 2003)Genome annotation in differently evolved organisms presents challenges because the lack of sequence-based homology limits the ability to determine the function of putative coding regions. To provide an alternative to ... -
A computational investigation of kinetoplastid trans-splicing
(BioMed Central: Genome Biology, 2005-10-17)Trans-splicing is an unusual process in which two separate RNA strands are spliced together to yield a mature mRNA. We present a novel computational approach which has an overall accuracy of 82% and can predict 92% of known ... -
Optimised isolation procedure for biologically active compounds nimbolide and 28-deoxonimbolide from Azadirachta indica leaves
(Elsevier: Phytochemistry, 1999-12)Alpha-linolenic acid has been isolated from fresh A. indica leaves and an optimised procedure for the isolation of the limonoids nimbolide and 28-deoxonimbolide is described. -
Genetic algorithm learning as a robust approach to RNA editing site prediction
(BioMed Central: BMC Bioinformatics, 2006-03-16)Background: RNA editing is one of several post-transcriptional modifications that may contribute to organismal complexity in the face of limited gene complement in a genome. One form, known as C -> U editing, appears to ... -
Phytotoxicity of American beech leaf leachate to sugar maple seedlings in a greenhouse experiment
(National Research Council Canada: Canadian Journal of Forest Research, 2003)In an effort to reexamine the factors that affect codominance of American beech (Fagus grandifolia Ehrh.) and sugar maple (Acer saccharum Marsh.), a greenhouse experiment was conducted to test the potential phytotoxic ... -
Indirect effects of beech bark disease on sugar maple seedling survival
(National Research Council Canada: Canadian Journal of Forest Research, 2003)To investigate the mechanisms of indirect effects of the increased presence of American beech (Fagus grandifolia Ehrh.) saplings on sugar maple (Acer saccharum Marsh.) seedling survival, I conducted several experiments in ... -
Spatial and temporal variation in calcium and aluminum in northern hardwood forest floors
(Springer: Water, Air and Soil Pollution, 2005-01)Acid rain results in losses of exchangeable base cations from soils, but the mechanism of base cation displacement from the forest floor is not clear, and has been hypothesized to involve mobilization of aluminum from the ... -
Effects of an intense ice storm on the structure of a northern hardwood forest
(National Research Council Canada: Canadian Journal of Forest Research, 2002)A major ice storm in January 1998 provided an opportunity to study the effects of a rare, intense disturbance on the structure of the northern hardwood forest canopy. Canopy damage was assessed using visual damage classes ... -
Remote sensing and GIS analysis of seagrass meadows in North Carolina, USA
(Elsevier: Aquatic Botany, 1997-10)Seagrass meadows are a valuable and vulnerable resource which supports coastal fisheries. Spatial monitoring of seagrass meadows can improve coastal management and research with baseline inventories of change in location ... -
Dynamic modeling of long-term sedimentation in the Yadkin River basin
(Elsevier: Advances in Water Resources, 2000-07)Modeling of sediment transport in relation to changing land-surface conditions against a background of considerable natural variability is a challenging area in hydrology. Bayesian dynamic linear models (DLMs) however, ... -
Implementation of a geographic information system in the chemistry curriculum: an exercise in integrating environmental analysis and assessment
(The American Chemical Society: Journal of Chemical Education, 2003-01)The rate of nonlinear sediment deposition in a local pond was determined through the application of Geographic Information System (GIS) software to an established laboratory method. Determination of total sediment deposition ... -
Domain swelling in micellar composites of poly(styrene-block-oxyethylene) in poly(styrene)
(American Chemical Society: Polymer Preprints, 1992-04)The Whitmore/Noolandi theory of micelle formation in binary block copolymer--homopolymer blends has been expanded to predict micelle characteristics and swelling limits in dilute ternary blends of A-B diblock polymers ... -
Electric field-induced morphologies in diblock copolymer containing polymer blends
(American Chemical Society: Polymer Preprints, 1992-04)Column-like structures can be generated in dc electric fields from normally spherical domain-forming binary and ternary blends. In ternary PS/PS-b-PEO-PEO blends, the addition of block copolymer stabilizes the elongated ... -
Photopatterning hybrid sol–gel glass materials prepared from ethylene tellurate and alkoxysilane
(Elsevier: Journal of Non-Crystalline Solids, 2005-09-01)Photopatterning of sol–gels is a versatile technique that has been used to prepare optical components and devices of silica and titania. Telluria (TeO2) has a higher third-order non-linearity than silica and titania and ... -
Effect of crystallization on the morphologies of block copolymer/homopolymer blends cast in an electric field
(Wiley: Journal of Polymer Science Part B: Polymer Physics, 1996-01-30)Blends of polystyrene (PS) and poly(styrene-b-ethylene oxide) (PS-b-PEO) were cast from a ternary solvent mixture containing 85% toluene, 10% tetrahydrofuran, and 5% methanol under conditions that favor crystallization of ... -
Cation binding at the air-water interface by macromolecules bearing pendant crown ethers moieties
(American Chemical Society: Journal of the American Chemical Society, 1986-09-17)In solution, the ion-binding characteristics of crown ethers and macromolecules containing macrocyclic ether moieties have been studied extensively. These ionophores are finding application in membranes, thin film sensors, ... -
Chemical alloying, a novel method for the preparation of homogeneous selenium-tellurium (SexTe1-x) alloys
(American Chemical Society: Journal of the American Chemical Society, 1984-11-14) -
The Esterolytic activity of poly(1-methyl-4- and -5-vinylimidazole) in water
(American Chemical Society: Macromolecules, 1975-07)The water solubility of poly(1-Me-5-VIm) has made it possible to achieve phenomenal rate enhancements and to gain even greater insight into the mechanism of catalysis by polymeric imidazoles. The poly(l-Me-5-V1m)-catalyzed ... -
The Esterolytic activity of poly(N-alkylimidazoles). The effect of ester chain length in the substrate and alkyl chain length in the catalyst on the esterolytic activity of poly(N-alkylimidazoles).
(American Chemical Society: Macromolecules, 1975-07)In an effort to exploit the enhancement in catalytic activity which might be derived through hydrophobic interactions between polymeric catalyst and substrate, 1-methyl-5-vinylimidazole (l-Me-5-VIm), l-methyl-4-vinylimidazole ...