Global ETD Search
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 146 for “"tap water"”.
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Neural tube defects in rodents caused by a tap water contaminant
… Unintentional exposure to a teratogenic agent in tap water was identified as the cause. We aimed to identify the contaminant, but first we demonstrated that the NTDs were pathological being present on both gestational day 9 and 10. We also found that a second species, rats, developed NTDs when …
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Trust in Water: An Institutional Analysis of China's Urban Tap Water Provision System
… institutional analysis of China’s urban tap water provision system from a ‘source to sip’ holistic research perspective. With the examination of each agent’s function in the system, this thesis coins the concepts of semi-potable tap water and Hybrid Institutional Architecture to …
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Emission of Insoluble Mineral Particles from Ultrasonic Humidifiers
… Al oxide suspension solutions were added into tap water, as fill water for ultrasonic humidifiers operated for 14 hours. Denser, heavier particles of approximate 1.5 um diameter of iron or aluminum oxides accumulated in the humidifier reservoir. Smaller, suspended metal oxide particles of …
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Springing for Safe Water: Drinking Water Source Selection in Central Appalachian Communities
… Central Appalachia that collect their drinking water from roadside springs despite having access to in-home piped point-of-use (POU) water. Residents have cited perceptions about water availability/quality as primary motivators for collecting drinking water from roadside springs. Water from …
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Dysregulated Apoptosis in Teratogen-Induced Neural Tube Defects in Mice
… acid (VA) and an unknown teratogen found in tap water. Interferon- γ (IFN γ) was used to stimulate maternal immunity to evaluate the role of altered apoptosis in this protective mechanism. Apoptosis was evaluated using flow cytometry, Terminal Transferase dUTP Nick End Labeling (TUNEL) assay …
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Electrochemical sensors for integration on silicon
Water quality monitoring is crucial to ensure the safe consumption of drinking water by humans. It is of such importance that the UN has included a specific goal for the improvement of water and sanitation in their Sustainable Development Goals (SDG). According to the UN, a staggering 3 in 10 …
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Resin-based method for concentration of enteric viruses and F-RNA coliphages from water samples
Fecal contamination of source and recreational waters represents a public health concern due to potential content of human pathogens, and the variety of sources from which an individual may be exposed to such contamination. Enteric viruses such as noroviruses, rotaviruses, adenoviruses and …
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Effect of Bottled Water and Fluoride Toothpaste Usage on Caries Lesion Remineralization
… an adequate amount of fluoride through community water fluoridation. Nowadays many people drink bottled water instead of tap water due to its easy access, convenience, and low cost. Besides fluoride, other minerals present in tap and bottled water, such as calcium and magnesium, are also important …
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Provenancing humans: the real uncertainty of stable isotope data
… Variation in the isotopic composition of local tap water arises as a result of mass-dependent fractionation processes occurring within the hydrologic cycle. These processes occur constantly as water is transported around the globe, and produces distinct isotopic signatures for tap water …
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Electrical resistivity of sandy soil with water, leachates and seawater
… much higher than the electrical resistivity of water, leachates or any liquid effluents which may permeate the landfill foundation material. Additionally, the geotechnical properties of a soil exhibit a close relationship with its electrical resistivity values for different conditions. This …
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Role of disinfectants and pipe materials on bacterial adhesion onto biofilms
… in CDC reactors using different types of feed water such as groundwater, monochloramine-treated groundwater, dechlorinated tap water and tap water. Biofilm physical structure was characterized at micro- and meso-scales using Scanning Electron Microscopy, Optical Coherence Tomography and …
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BACTERIAL BIOFILM FORMATION AS A TOOL TO ASSESS CHEMICALLY TREATED WASTEWATER QUALITY IN DEEP EAST TEXAS
<p>The effectiveness of wastewater treatment plants (WWTPs) relies on a sequence of primary, secondary, tertiary, and advanced treatment stages to remove contaminants. However, despite these processes, microbes can still thrive in treated water from WWTP, posing a significant threat to water …
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Development of the selective-shear coagulation process for ultrafine coal cleaning
… studied. An optimum pH range was established for tap water and distilled water media. The presence of multivalent cations in the system increased coal recovery, but decreased selectivity. Physical parameters of the selective coagulation process, such as particle size, percent solids, and specific …
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Assessing the Potential of Granular Activated Carbon Filters to Limit Pathogen Growth in Drinking Water Plumbing Through Probiotic Versus Prebiotic Mechanisms
… pathogens that can be transmitted via drinking water, when tiny droplets containing the bacteria are aerosolized and inhaled during activities such as showering. The resulting respiratory illnesses, Legionnaires’ Disease and NTM lung disease, are among the leading sources of drinking water …
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Fluoride uptake by enamel from stannous fluoride and prophylaxis pastes
… (2) to determine whether rinsing the mouth with tap water immediately after these procedures would significantly affect enamel fluoride uptake. A modification of an in vivo, acid-etched enamel biopsy technique was used to measure fluoride and calcium contents of the outermost layer of enamel in …
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Les Bon Temps
… subjects such as race relations, public protest, tap water quality, post-traumatic depression, energy monopolies, lifestyle, culture, and evacuation.</p>
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Willingness to pay for water in South African rural areas: a case of Nsikas Village of Mpumalanga Province
… the study was titled: The willingness to pay for water in South African Rural areas: A case study of Nsikazi Villages of Mpumalanga Province. The principal objectives of the study are as follows: determining the level of the relationship between the households' willingness to pay and the …
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Evaluation of hybrid treatment configurations of granular activated carbon and alternative adsorbents for per- and polyfluoroalkyl substances removal from surface water and groundwater
… worldwide have enacted stringent drinking water standards to mitigate human exposure to PFAS. Traditional adsorption-based treatment technologies like granular activated carbon (GAC) and anion-exchange resins have been used extensively, but often see diminished performance with …
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Practical aspects in first aid cooling of burns
… divided in two groups,· Group I using ice water to cool the wounds and Group II using tap water,· Group Ila using slightly warmer water than group Ilb. It was found that the temperature of the coolant was crucial if applied effectively. An effective method of cooling of fresh burn wounds is …
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