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Now showing items 1-20 of 764
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Modifications of the hydrophilicity of heterocyclic methacrylate copolymers for protein release
(Elsevier, 1995-12)A series of copolymers comprising ethyl methacrylate (EM) and tetrahydrofurfuryl methacrylate (THFMA) gelled with either THFMA monomer or hydroxyethyl methacrylate (HEMA) monomer have been developed. In this paper, we ... -
The water uptake of poly(tetrahydrofurfuryl methacrylate)
(Elsevier, 1999-03)Poly(tetrahydrofurfuryl methacrylate) possesses some unique characteristics with respect to its biocompatibility and behaviour in water. The water uptake is high (>70%) and very slow (over 3 yr), but the material remains ... -
A polymeric system for the intra-oral delivery of an anti-fungal agent
(Elsevier Science Ltd., 2001)Oral candidal infections are often persistent and intractable and thus the aim of this study was to develop a polymeric sustained release device to improve the topical treatment of these infections. A self curing system ... -
Genetic Algorithm Optimization for Broadband Patch Antenna Design
(IEEE, 2006)A genetic algorithm (GA) optimization design of patch antenna has been performed using surface integral equation (SIE), method-of-moments (MoM) solution. The electromagnetic engine procedure is based on the Matlab code by ... -
Mycobacterium bovis in rural Tanzania: Risk factors for infection in human and cattle populations
(Elsevier Ltd., 2007-01)Although bovine tuberculosis is widespread throughout Africa, very little is known about risk factors for Mycobacterium bovis infection in either human or cattle populations. A human case–control study was conducted in ... -
Genetic Algorithm Optimization for Broadband Patch Antenna Design
(IEEE, 2007-10-15)A genetic algorithm (GA) optimization design of patch antenna has been performed using surface integral equation (SIE), method-of-moments (MoM) solution. The electromagnetic engine procedure is based on the Matlab code by ... -
Theoretical study of the structure and stability of the Na2Cl+, NaCl 2−, Na3Cl 2+, and Na2Cl 3− ions
(Springer Nature Switzerland AG., 2007-11)The geometrical parameters, normal vibration frequencies, and thermochemical characteristics of the Na2Cl+, NaCl 2−, Na3Cl 2+, and Na2Cl 3− ions in saturated vapors over sodium chloride were calculated by the ab initio ... -
GA/MoM optimization of PIFA antennas with meandering slits
(IET Digital Library, 2007-11-16)The optimization of a mobile antenna by genetic algorithm (GA) can be done in many ways, e.g. by random removal of rectangles on the patch radiator, movement of shorting patches, etc. In this paper we will demonstrate the ... -
Optimization of Multiple-Short PIFA for Broadband Communication
(IEEE, 2007-12-26)As wireless systems gain wider acceptance and enjoy increased application, performance and cost constraints on the wireless system antennas become more difficult to meet. In this context, antennas that are small in size, ... -
Calculation of the Thermodynamic Characteristics of Ions in Vapor over Sodium Fluoride
(Springer Nature Switzerland AG., 2008-01)The geometric parameters, normal vibration frequencies, and thermochemical characteristics of the ions present in vapor over sodium fluoride, Na2F+, Na3F 2+, NaF 2−, and Na2F 3−, were calculated ab initio by the Hartree-Fock ... -
Genetic algorithm optimization for multiband patch antenna design
(IEEE, 2008-08-01)A combined method of moment (MoM)/genetic algorithm (GA) numerical procedure for achieving mulitband-frequency characteristics in patch antenna design is demonstrated in this paper. Method of moment (MoM) solution used in ... -
Germination of Invasive Plant Seeds after Digestion by Horses in California
(Natural Areas Journal, 2008-10)Using a unique sterile design intended to eliminate outside seed contamination of horse feces, we investigated whether weed seeds germinate after digestion by horses. Feces were collected from selected National Parks and ... -
Innovations and Sustainability: The Case of Improved Biomass Stoves' Adoption and Use in Tanzania
(Lund, Sweden – Spring, 2009)The adoption and continued use of improved stoves in the developing countries is of social, economic and environmental concern. In most developing countries, biomass-based energy accounts for more than 90% of all household ... -
Rooting and growth potential of Leucadendron laxum (proteaceae) using different rooting mediums and indoleacetic acid growth regulators
(Sabinet African Journals About Sabin, 2009-01-01)Leucadendron laxum (Proteaceae) is a South African plant species with a high commercial value as a flowering potted plant. Limited research information on the culture and propagation of this species is available in South ... -
Manufacturing of Functionally Graded Porous Products by Selective Laser Sintering
(Scientific.Net, 2009-10)Selective laser sintering (SLS) is a rapid prototyping technique which is used to manufacture plastic and metal models. The porosity of the final product obtained by SLS can be controlled by changing the energy density ... -
Occurrence of patulin in various fruit juices from South Korea: An exposure assessment
(Springer Nature Switzerland AG., 2010-02-28)To determine patulin in various fruit juices, high performance liquid chromatography (HPLC) method was optimized and validated. For validation of HPLC method, a linearity, accuracy, precision, detection limit, and ... -
Structural and thermodynamic characteristics of ionic associates in vapors over sodium bromide and iodide
(Nature Switzerland AG., 2010-05-16)Nonempirical methods are used to calculate the geometric parameters, the frequencies of normal vibrations, and thermochemical characteristics of ions existing in saturated vapors over sodium bromide and iodide: Na2X+, NaX ... -
Small Scale Fisheries Management: Lessons from Cockle Harvesters in Nicaragua and Tanzania
(Taylor & Francis Online, 2010-06-01)The role of women in gleaning fisheries tends to be underestimated and poorly documented although they play an important role in coastal food security and income generation. This article describes two initiatives for ... -
Influence of aging conditions on textural properties of water-glass-based silica aerogels prepared at ambient pressure
(Springer US, 2010-06-04)The experimental results of aging time and temperature on the textural properties of water-glass (sodium silicate)-based silica aerogels are reported and discussed. Aging of the hydrogel for different times and temperatures led ... -
In vivo uptake and acute immune response to orally administered chitosan and PEG coated PLGA nanoparticles
(Elsevier, 2010-09-17)Nanoparticulate drug delivery systems offer great promise in addressing challenges of drug toxicity, poor bioavailability and non-specificity for a number of drugs. Much progress has been reported for nano drug delivery ...
