Global ETD Search
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Showing 1 to 9 of 9 for “"control release"”.
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Effects of a Control Release Nitrogen Fertilizer and Thinning on the Nitrogen Dynamics of a Mid-Rotation Loblolly Pine Stand in the Piedmont of Virginia
… a portion being utilized by plantation trees. Controlled release fertilizers release available N more slowly over a longer period of time and therefore may result in greater uptake efficiency. The objective of this study was to compare Nitroform®, a urea-formaldehyde controlled release N …
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Biopharmaceutic and Pharmacokinetic Studies of Sucrose Acetate Isobutyrate as an Excipient for Oral Drug Delivery.
… suggest that SAIB can be used in dosage forms to control release rate. Pharmacokinetic studies in which laboratory rats were dosed with formulations containing drugs such as ibuprofen, saquinavir, and clarithromycin suggest that SAIB may act to reduce animal-to-animal variability in drug …
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Elucidation of Drug Release Mechanisms in PLGA Microspheres
… and theoretically elucidate mechanisms of drug release in PLGA microspheres. We showed the effect of microsphere size and presence of an antacid on the stability and release of plasmid DNA from PLGA microspheres. We demonstrated that the use of Mg(OH)2 as a stabilizing excipient affected the …
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Nitrogen Fate and Transformations in the Production of Containerized Specialty Crops
… ×intermedia' Mindor' were grown using two control-release fertilizer (CRF) treatments [AN (ammonium-nitrate based) or UAN (urea ammonium-nitrate)] products. This study determined that 97% of the released N from the CRF treatments was lost via aqueous or gaseous pathways. The aqueous losses …
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The use of ATR-FTIR to probe the release mechanism from hydrophilic matrices.
… widely used in the pharmaceutical industry as control release agents in solid oral dosage formulations. One of the key parameters that controls release in such systems is the distribution of exipients within the formulation, which in turn is governed by the processing and manufacturing …
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Development of polymeric nanoparticle vaccines for immunostimulation
… the aim of 1) providing greater spatiotemporal release of small molecule adjuvant to secondary lymphoid sites and 2) providing a tunable surface for loading B cell antigen epitopes in a specific conformation to drive epitope-specific antibody response. In recent decades, TLR mechanisms have been …
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Constructing Learner Autonomy Through Control Shift: Sociocultural Implications of Teacher Cognition and Practice in a Chinese Secondary School
… in a conventional school environment through control shifts from school managers to teachers and from teachers to students. However, few empirical studies have closely examined the actual practices of managers and teachers in this regard, and their perceptions on their own practices as well as …
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Evaluation of the microencapsulation performance by spray drying with a three-fluid nozzle
… wall material, which can increase the stability, control delivery, and mask off-notes of the core material. Spray drying is one of the most commonly used microencapsulation techniques in the food industry. Both material properties and process conditions will affect the characteristics of the …
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Cooperativity: Physiologic Cornerstone and Emerging Therapeutic Design Principle
The content of this work is based on the previously published articles that are cited below.