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Dissertations / Theses on the topic 'Zinc levels in sputum'

Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

Waite, Paul. "Deep levels in zinc selenide." Thesis, Durham University, 1986. http://etheses.dur.ac.uk/6773/.

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The main purpose of the work reported in this thesis was to investigate and characterise the deep levels in zinc selenide crystals grown from the vapour phase at Durham, and by the CVD technique at AWRE, Aldermaston. The methods of TSC, TSL and DLTS were applied to samples of Durham-grown and CVD ZnSe. The study revealed the presence of traps at 0.14-0.16,0.23, 0.26, 0.30-0.31, 0.45, -0.60 and 0.70 eV in Durham-grown material, whereas the CVD material was found to contain trapping levels at 0.10, 0.20 and 0.27-0.28 eV. The 0.10 eV level in CVD ZnSe is ascribed to the Na acceptor. The traps occ

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2

Otsuka, Kojiro. "Sputum YKL-40 Levels and Pathophysiology of Asthma and Chronic Obstructive Pulmonary Disease." Kyoto University, 2012. http://hdl.handle.net/2433/152498.

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3

Iskandar, Monica. "Elevated levels of dietary zinc intake modulate the expression of CCS and intestinal zinc trafficking proteins." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84041.

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Experiments were carried out to examine the value of CCS (copper chaperone for CuZn superoxide dismutase) as a novel biomarker of zinc-induced mild copper deficiency and to evaluate the changes in expression of zinc transporters in response to graded levels of moderately high dietary zinc. Weanling male Wistar rats were fed graded levels of zinc (30, 60, 120 and 240 mg zinc/kg diet) for 5 weeks. Results showed a dose-dependent decrease in copper content and an increase in CCS expression in tissues of rats fed the Zn-60 and Zn-120 diets. Surprisingly, rats fed the Zn-240 diet showed bett

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4

Hebert, E. Gerald. "Arsenic, Cadmium, Copper, and Zinc Levels in Crayfish from Southwest Louisiana and Atchafalaya Basin." ScholarWorks@UNO, 2015. https://scholarworks.uno.edu/td/2082.

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Heavy metal contamination in food is a worldwide concern. Man-made ponds are domestic sites in the production of Procambarus clarkii and Procambarus zonangulus, two edible species of crayfish. Ponds may be constructed in former sugar cane or rice fields. Crayfish farming is an ancillary seasonal business within the rice-growing season. The use of products to control insects, pests, and weeds in rice and sugar cane production, may cause an accumulation of heavy metals in the crayfish tail within pond structures. Arsenic, cadmium, copper, and zinc are heavy metals that are absorbed through the r

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5

Tin, Ekun. "Changes in Iron, Calcium, Magnesium, Copper and Zinc Levels in Different Tissues of Riboflavin Deficient Rats." Kyoto University, 1997. http://hdl.handle.net/2433/202193.

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6

Wijesundara, Chandra. "Response of corn to high levels of CuSO₄ and ZnSO₄ applications." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/45959.

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High levels of Cu and Zn application to agricultural soils are considered to pose a potential hazard to plants and animals. The levels of Cu and Zn which can be safely added to cropland have yet to be established. This study was conducted on a Davidson silty clay (Rhodic Paleudult) to determine the response of corn (<u>Zea mays</u> L.) to cumulative application of up to 469 kg Cu and 1032 kg Zn ha⁻¹ as sulfates over the 22-year period from 1967 through 1988. Neither corn grain nor silage yield was affected by the metal additions even though the cumulative amount of Cu and Zn added exceeded the

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7

Winarko, Clementinus. "Response of corn to high levels of CuSO₄ and ZnSO₄ applications." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/45656.

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<p>Copper and Zn deficiencies of crop plants occur in various areas throughout the world. The sulfate forms of Cu and Zn are generally used to correct these micronutrient deficiencies. In agricultural practices, Cu and Zn are applied to soils not only as a fertilizer but also as manures, pesticides and waste materials such as sewage sludge. High levels of Cu and Zn application to agricultural soils are considered to pose a potential hazard to plants and animals. Research findings have not established Cu and Zn levels that either injure plants or increase Cu and Zn concentrations in

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8

Read, Elizabeth Stevens. "Investigation of the effects of copper source, copper and zinc levels, and dietary protein source on CU bioavailability in rainbow trout." Thesis, Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/read/ReadE0512.pdf.

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Limited research has examined the effects that plant-based diets have on copper (Cu) and Zinc (Zn) absorption and utilization in rainbow trout. Few studies have been conducted to determine if interactions exist in the utilization of Cu when increasing levels of supplementary Zn were offered. The objectives of this research were to: first determine what effect protein source (plant vs. animal based), Cu source (complex vs. inorganic) and concentrations of Cu (0, 5, 10, 15, 20 ppm) in the diet had on rate and efficiency of gain and Cu tissue levels in rainbow trout. The second experiment was to

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9

Conway, Daniel Elridge. "CYP1A1 and CYP1B1 expression and free zinc levels in endothelial cells are differentially regulated by pro-atherogenic versus anti-atherogenic shear stress." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/33832.

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It is hypothesized that exposing endothelial cells to steady or non-reversing pulsatile shear stress produces a healthy, anti-atherogenic endothelium, whereas a reversing pulsatile shear stress promotes an unhealthy, pro-atherogenic endothelium. To further investigate this hypothesis, a novel parallel plate flow chamber system was used to expose human endothelial cells to a pro-atherogenic reversing shear stress waveform designed to simulate the wall shear stress at the carotid sinus, a region prone to atherosclerosis. Cells exposed to this reversing shear stress were compared to cells expos

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10

Monasterios, Clevys Josefina. "Determination of copper and zinc at trace levels in human hair using a direct sample insertion technique for inductively coupled plasma atomic emission spectrometry." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63251.

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11

Mills, Kayla. "Effect of Cyclic Heat Stress and Supplemented Inorganic and Organic Zinc Source Levels on Grow-Finish Pig Growth Performance, Estimated Body Composition, Intestinal Morphology and Gene Expression." Thesis, Purdue University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10808446.

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<p> Heat stress is a physiologic state where an animal can no longer properly regulate it’s body temperature to prevent hyperthermia. It has been well documented that heat stress can negatively impact feed intake, growth performance, carcass characteristics, gut morphology and integrity in swine. Finishing swine are particularly sensitive to heat stress which costs the U.S. swine industry millions of dollars annually. There are several ways heat challenges can be mitigated to reduce the negative impacts of heat stress during warmer temperatures, one of which being nutrition. Knowing that

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12

Cao, Kanyu. "Crystal-field splitting of Er ³⁺in ZnO and experimental observations." Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1177608455.

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13

Mendonça, Maitê Vidal. "Efeitos da associação de diferentes fontes de cobre e zinco na dieta de leitões desmamados." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/10/10135/tde-13112018-114626/.

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Inicialmente o presente estudo objetivou avaliar os efeitos de diferentes fontes de cobre e zinco na dieta de leitões desmamados. Porém, houve a necessidade de utilizar as mesmas fontes e alterar apenas os níveis de inclusão desses minerais, o que justifica o título (que não pôde ser substituído posteriormente). Os leitões recém-desmamados apresentam reduzida digestibilidade de nutrientes pela falta de maturidade do sistema digestório frente à dieta sólida, levando à redução na absorção dos mesmos, e consequentemente diarreia e queda no desempenho. Uma das alternativas utilizadas após o desmam

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14

Jayaram, Lata. "Airway inflammation, diagnosis, perception of asthma, and sputum zinc levels in a community cohort." Thesis, 2010. http://hdl.handle.net/2440/63531.

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Induced sputum examination (IS), an established research tool to measure airway inflammation (AI), is normally confined to specialised institutions and selected populations with airway disease, especially asthma. This thesis examines the role of IS in the diagnosis of asthma in a community. The first study explores the accepted definitions of asthma, the utility of IS, and another marker of AI, exhaled nitric oxide (eNO), in establishing the diagnosis of asthma. The findings confirm that symptoms, variable airflow obstruction and airway hyper-responsiveness (AHR) are inter-linked in the defi

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15

Lin, Yu-Cheng, and 林祐誠. "Effect of Dietary Crude Fiber and Zinc Levels on the Growth and." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/14224073679513584606.

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16

Nadar, Anand. "The interrelationship of dietary cholesterol, copper and zinc on plasma lipids and tissue copper and zinc levels in the rat." Thesis, 1992. http://hdl.handle.net/10413/5876.

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17

Anand, Nadar. "The interrelationship of dietary cholesterol, copper and zinc on plasma lipids and tissue copper and zinc levels in the rat." Thesis, 1992. http://hdl.handle.net/10413/7860.

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18

Castro, Ana Carolina Fernandes Vieira de. "Sub-toxic zinc oxide nanoparticles modulate PSD-95 and shank 3 protein levels." Master's thesis, 2019. http://hdl.handle.net/10773/28433.

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The effect of zinc on neuronal systems is growing interest in scientific research due to a possible role as a modulator of synaptic activity. Additionally, recent research points to the therapeutic potential of zinc oxide nanoparticles (ZnO NPs) on neuronal cells. These nanoparticles are excellent drug carriers to the brain because, besides having positive characteristics for the protection of cellular homeostasis, they are small, allowing them to pass the blood brain barrier and interact directly within these cells. In this sense, the present thesis explored the effect of sub-toxic ZnO NP con

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19

Su, Yu-Ting, and 蘇于婷. "Serum copper, zinc and vitamin D levels in type I diabetes mellitus patients." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/08330280875287630681.

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碩士<br>高雄醫學大學<br>醫學檢驗生物技術學研究所<br>100<br>英文摘要 A diabetes epidemic has emerged during the 20th century. The prevalence of diabetes for all age groups was estimated to be 2.8％ in 2000，and this number will increase to 4.4％ by 2030. Alterations in trace elements have been reported in a number of diseases. Patients with diabetes mellitus are inclined to result in the imbalance of trace elements and elevated oxidative stress markers. Trace elements are well known to play an important role in the maintenance of health. Zinc is essential for normal insulin production, and plays a central role in cel

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20

Magnusson, Karin. "Risk for postpartum depression in association with zinc, magnesium and calcium levels at delivery." Thesis, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-216507.

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21

Chen, Yu-Hsuan, and 陳俞璇. "A study of blood lead, cadmium, selenium, zinc, copper, and magnesium levels in fertile and infertile men." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/38120783871378968622.

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碩士<br>臺北醫學大學<br>公共衛生學系<br>92<br>Recently, infertility issue is more important to be discussed. In the past 50 years, the trend of the semen quality in globe males is descending. The situation is caused by possible reason including age, environmental factors and lifestyles. In developed countries, environmental factors, lifestyles, smoke habits, alcohol consumption and stress have suggested to play a role in human subfertility. The environmental toxicant which adverse effects on male reproductive function have been extensively studied. As a matter of fact, many metals have been investigated in

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22

Churchill, Diane M. "The effect of zinc orthophosphate and pH/alkalinity adjustment on copper and lead levels in drinking water." Thesis, 1997. http://hdl.handle.net/2429/6340.

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A twelve month pilot plant study was conducted to evaluate the relative ability of various corrosion control treatments to reduce metal leaching from typical household plumbing materials. A pipe loop system with seven loops, each consisting of lead/tin soldered copper piping, coils of lead/tin solder material and brass faucets, was used to test six treatment options and a control. pH and alkalinity were adjusted by the addition of lime (Ca(OH)2) and sodium bicarbonate (NaHC03) respectively, and two different doses of zinc orthophosphate were tested. Treated water samples, that had been

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23

Voruganti, Venkata Saroja Freeland-Graves Jeanne H. "Obesity-associated phenotypes and circulating levels of ghrelin, cholecystokinin, low-density lipoprotein and zinc genetic and observational studies /." 2005. http://repositories.lib.utexas.edu/bitstream/handle/2152/1750/vorugantiv45585.pdf.

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24

Voruganti, Venkata Saroja. "Obesity-associated phenotypes and circulating levels of ghrelin, cholecystokinin, low-density lipoprotein and zinc: genetic and observational studies." Thesis, 2005. http://hdl.handle.net/2152/1750.

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25

Mackraj, Irene. "The effect of vitamin B-6 deficiency on the levels of tissue copper, iron and zinc in the rat." Thesis, 1989. http://hdl.handle.net/10413/9709.

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26

ŽÁČKOVÁ, Klára. "Sezónní dynamika vybraných krevních parametrů u vybraných masných plemen ovcí chovaných v podhorských podmínkách." Master's thesis, 2009. http://www.nusl.cz/ntk/nusl-51260.

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Sheep breeding is nowadays a developing branch of agriculture again. There is a lot of different breed and they react distinctly on the same conditions of the enviroment. Sheep of breeds charollais, suffolk, šumavská ovce and valaška bred in similar conditions were observed in spring and autumn of years 2007 and 2008. In these seasons were taking blood samples (from {$\pm$}7{--}24) ewes and lambs and were analyzed in hematology laboratory. There were determined haemoglobin level, haematocrit indicator, erytrocytes and leucocytes levels, glucose, cholesterol, triglycerides levels, urea and plas

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