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Showing 1 to 16 of 16 for “"Time-release"”.
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Incorporation of Tetracycline Hydrochloride into Electrospun Fibrinogen: a study of mechanical properties and time release
… mg/mL, and 130 mg/mL concentrations). Also, the time release of tetracycline from electrospun fibrinogen was investigated. The results show no significant effect of tetracycline loading on the mechanical properties of electrospun fibrinogen under the conditions of this study. The results of the …
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Utilizing Full-Time Release Mentors in a Suburban Elementary School District: A Change Leadership Plan
… currently use site-based mentors who teach full-time, and in addition to their teaching responsibilities, they mentor new teachers part time. The first part of my 3-part dissertation was a program evaluation of the mentoring program, using site-based mentors, for first-year teachers in Northwest …
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Physiological and Environmental Basis of Turfgrass and Weed Response to Mesotrione Formulations
… to mimic ascending, descending, and intervallic time-release patterns. These patterns were applied following an initial treatment to foliage or soil to mimic a potential sprayable or granular time-release formulation. These scenarios effectively controlled five targeted weed species equivalent to …
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Microcapsule-based strategies for enhanced performance of lithium-ion batteries
… enhance battery performance are developed: (1) time-release of encapsulated battery additive, vinylene carbonate (VC) and (2) mechanical triggering of microcapsules embedded in battery electrodes. Time-release of encapsulated battery additives aims to promote a beneficial SEI layer at the …
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Development of a Novel Perfluoroalkyl Substance Sequestration Scheme Using Alginate Macrobeads and Common Water Treatment Polymers
… vector for delivery of these compounds in a time release manner. Bead experiments examined alginate synthesis concentration, membrane thickness, and alginate composition. Synthesis concentration had no effect on mass transfer. Beads synthesized with greater membrane thickness may be …
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Near-Infrared (NIR) Spectroscopy-based Pharmaceutical Process Analytical Technology (PAT) Systems: Risk and Performance
… and controlling manufacturing operations through timely measurements of critical quality attributes of raw/in-process materials, with the goal of ensuring quality of final drug products.</p> <p>Near-Infrared (NIR) spectroscopy is a commonly used analytical part of the PAT toolbox. It offers …
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The development and evaluation of a hydrogel drug delivery system for dithranol.
… that dithranol stability could be monitored and release rates measured. A high-performance liquid chromatography (HPLC) method enabled the assay of dithranol, danthrone and dimer at concentrations appropriate for stability studies and longer-time release experiments. A more sensitive fluorimetric …
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Application of First Principle Modeling in Combination with Empirical Design of Experiments and Real-Time Data Management for the Automated Control of Pharmaceutical Unit Operations
… of product quality, and the possibility of real-time release. Control systems require significant planning and an initial investment, but the improved product quality and manufacturing efficiency provide ample incentive for the expense. </p><p>The fluid bed granulation and drying unit operation …
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Performance and characteristics of controlled release matrices composed of hydroxpropylmethylcellulose and other polymers.
… combination with other adjuncts, to control the release of propranolol hydrochloride from matrices. Gels were characterized by U tube viscometry and their cloud points of gels. The properties of polymers and their mixture in matrices or in gels were investigated by differential scanning …
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Geochemical Investigations of Respirable Particulate Matter
… rate, determined by measuring the silicon release rate per unit surface area of talc is 1.4 (+/- 1.0) x 10-11 mol Si/(m2 -sec). A geometric shrinking particle model using this dissolution rate predicts an estimated lifetime (upper limit) of approximately 8 years for a 1 micron talc particle …
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Using Timed-Release Cryptography to Mitigate Preservation Risk of Embargo Periods
<p>This research defines Time-Locked Embargo, a framework designed to mitigate the Preservation Risk Interval: the preservation risk associated with embargoed scholarly material. Due to temporary access restrictions, embargoed data cannot be distributed freely and thus preserved via data refreshing …
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Applications of Broadband Acoustic Resonance Dissolution Spectroscopy (BARDS) in pharmaceutical analysis
Dissolution testing is one of the most time-consuming, costly, and laborious tasks in the pharmaceutical industry, and yet it is a cornerstone of quality control testing and product release. Dissolution testing is a prerequisite for the quality control and release to market of nearly every …
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Implementation of Solution and Solid Sate Nuclear Magnetic Resonance (NMR) Spectroscopic Techniques for Quantitative and Qualitative Analysis of Molecular Species
… pharmaceutical projects. In chapter3, a real-time quantification of in vitro Bortezomib (BTZ) release from alginate microparticles using a solution state quantitative boron nuclear magnetic resonance (11B qNMR) method is presented. The method was validated according to International Conference …
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A quantitative analysis of shoreline erosion processes, Lake Sakakawea, North Dakota
… rises until maximum pool level is reached sometime in mid-summer. Storm waves easily erode the loose calluvium along the base of the banks. If all the colluvium is eroded, the waves can remove the primary sediment or bedrock, effectively under cutting the banks. At the top of such banks, …
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Mid-IR Imaging and Multivariate Analysis of Dynamic Processes in Pharmaceutically Relevant Microparticles
Sustained release microparticles used for parenteral drug delivery must be well characterized in terms of their size range, morphology and function. It is widely understood that the chemistry and morphology of microparticles have a degree of interdependence which strongly affects drug release …
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Evaluating the Effectiveness of a First Year Mentoring Program in a Suburban Elementary School District: A Program Evaluation
<p> The Illinois State Board of Education (ISBE) requires every school district in Illinois to have a mentoring program. The purpose of this program evaluation was to gauge the effectiveness of the mentoring program for first-year teachers in Northwest Suburban School District A. This document …