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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 57 for “"POU"”.
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Structural and biochemical studies of Oct-1 POU domain-DNA interactions
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Biology, 1995.
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Understanding Practical Limitations of Lead Certified Point of Use (POU) Filters
… recent increase in the adoption of point-of-use (POU) household water filters as an alternative to untreated tap water or bottled water. POU filters certified for lead removal have recently been distributed by the hundreds of thousands in communities amid water lead crises, as a temporary solution …
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Understanding Mechanisms of Water Lead Contamination by Nitrate Spallation Corrosion and Lead Removal by Point-of-Use (POU) Filters
… removal of particulate lead by point-of-use (POU) filters are important public health goals. These topics are especially timely given forthcoming revisions to the Lead and Copper Rule and ongoing efforts to reduce lead levels at the tap. Recently a switch from non-corrosive groundwater to a …
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Modulation of Excitatory and Inhibitory Neuronal Balance Through Regulation of Ptf1a by Factors Binding to Zinc Finger and POU Motifs
… at least two distinct motifs: a putative POU motif required for activity, and a zinc finger which represses activity in non-Ptf1a-expressing populations within the neural tube. The activities of these two motifs were tested by in chick and transgenic mice. Coupled with a bioinformatics …
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Statistical Evaluation of the Factors causing Microbial Growth in Point-of-use Filters
… health concern in the DC area, Point-of-Use (POU) filters were installed at public schools to reduce lead concentrations in water. However, the installation of POU filter could possibly lead to the growth of bacteria inside the filters, which could lead to health concerns. Therefore, the …
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Sox2 co-occupies distal enhancer elements with cell-type-specific POU factors to specify cell identity in embryonic stem cells and neural precursor cells
… known to co-occupy target loci in ESCs with the POU factor Oct4, in NPCs Sox2 interacts with the central-nervous-system-expressed POU factors Brn1 and Brn2. By utilizing distinct composite Sox:Octamer motifs in each cell type, Sox2:POU modules control the expression of thousands of genes involved …
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DEVELOPMENT OF THE LARVAL PERIPHERAL NERVOUS SYSTEM IN THE ASCIDIAN CIONA INTESTINALIS: ROLE OF THE RETINOIC ACID AND FGF/WNT SIGNALLING PATHWAYS AND OF THE POU TRANSCRIPTION FACTORS.
… the role played by transcription factors of the POU family in its differentiation. Within chordates, tunicates represent the sister group of vertebrates and their larvae have a typical chordate body plan. Notably, larval nervous system is formed by few cells whose organization mirrors that of …
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Reconstruction of Functions From Non-uniformly Distributed Sampled Data in Shift-Invariant Frame Subspaces
… efficient. Recently, the Partitions of Unity (PoU) algorithm has been suggested to outperform the AW although there has been much literature covering its numerical performance. A study and analysis of the implementation of the Adaptive Weights (AW) and Partitions of Unity (PoU) reconstruction …
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Evaluation of Burnout, Coping Strategies and Resilience in Paediatric Oncology Health Care Workers in Cape Town
… medical specialities. Paediatric oncology unit (POU) HCWs are at a high risk of developing burnout because of the immense physical and emotional involvement that can be associated with caring for children with cancer. The burnout process can, however, be influenced by adopted coping strategies …
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Investigation of the prevalence of opportunistic gram negative pathogens in the water supply of a haematology unit, and the application of point-of-use filtration as an intervention.
… unit and evaluated Point-Of-Use Filtration (POU-F) as a control measure. In a two-year double cross-over trial, water samples and swabs were taken weekly from 39 showers/taps on the unit. Four study phases alternated between non-filtered (Phases 1 & 3), and filtered outlets (Phases 2 & 4) …
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Architecture and unit design of a capital cost optimized, household electrodialysis desalination device with continuous flow
… setting. Currently, a majority of point-of-use (POU) purifiers use reverse osmosis (RO) to desalinate household water. However, RO purifiers waste up to 70% of the feed water when used in the domestic context. Electrodialysis (ED) is a water-efficient alternative means of desalination that …
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Practical Application of NSF/ANSI 53 Lead Certified Filters: Investigating Lead Removal, Clogging and Consumer Experience
NSF/ANSI 53 lead-certified point-of-use filters (POUs) have been distributed to consumers in many cities facing water lead crises, including Washington D.C., Flint, MI, Newark, NJ, and University Park, IL. It is expected that these filters would reduce water lead to levels that are safe for …
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Residential Exposure to Non-tuberculous Mycobacteria: Sources and Associations with Pulmonary Disease
… the association between NTM colonization of POU sources in homes and MAC pulmonary disease (MAC PD), we continued a case-control study of Washington and Oregon residents who have been diagnosed with MAC PD and population controls matched by age, gender, and geography. Environmental samples …
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Technological Development of Chemical Sensors for Healthcare and Safety Applications
The development of Point-of-Use (PoU) sensors is driven to provide simple, rapid and reliable test results for applications that require quantitative analysis, in particular in resource-limited settings. To bring a more comprehensive range of tests into the PoU, there is a need to evaluate and …
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The Effectiveness of Point-of-Use Treatment in Improving Home Drinking Water Quality in Rural Households
… of this research was to examine point-of-use (POU) treatment options that can be used by individuals to improve their drinking water quality and reduce exposure to common contaminants prior to consumption. Two drops (~0.10 mL) of unscented, household bleach in one gallon of spring water is a …
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Occurrence of Per- and Polyfluoroalkyl Substances (PFAS) in Private Water Supplies in Southwest Virginia
… experts at the home drinking water point of use (POU) in 10 Roanoke and 10 Floyd County homes for comparison. Experts also collected an outside tap PFAS sample. At least one PFAS compound was detected in 76% of POU samples collected (n=60), with an average total PFAS concentration of 23.5 parts …
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Point of Use Semi-Batch Reverse Osmosis Desalination Prototype Experimental Validation
… plants in Kuwait to home-scale point-of-use (POU) reverse osmosis (RO) purifiers in India. However, current home-use systems produce significant amounts of wastewater, achieve a recovery of 20-30% of the input feed as drinking water, and consume significant energy. Through previous testing and …
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Effects of installing point-of-use filters intended for lead removal on drinking water quality
… school administrators installed point-of-use (POU) filters made of activated carbon and ion exchange media in classroom sinks. Before and after common stagnation periods at the school (e.g., overnight, over-the-weekend), water samples were collected from a spigot where water enters the school …
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Making Decentralized Desalination More Affordable Using Improved Process Design, Control, and Energy Recovery
… and within individual homes, using point-of-use (POU) purifiers. This thesis develops methods to lower the costs and improve the efficiencies of two technologies for these applications: electrodialysis (ED) and reverse osmosis (RO). Batch ED desalination, which relies on recirculating water to …
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Educational Concerns of Implementing Biosand Water Filters in Rural Uganda
… years. Research has indicated that point of use (POU) technologies are likely to be the most efficient at delivering clean water (water cleaned of diarrhea causing microbes and bacteria) to rural populations. POU technologies, and specifically the biosand filter (BSF) are shown to be affordable, …
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