Bibliografie tematiche / Effect of zinc on

Letteratura scientifica selezionata sul tema "Effect of zinc on"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 24 gennaio 2023

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Articoli di riviste sul tema "Effect of zinc on":

Anjum, Kaukab, Asma Ali e Uzma Shahid. "PROTECTIVE EFFECT OF ZINC;". Professional Medical Journal 24, n. 04 (6 aprile 2017): 580–88. http://dx.doi.org/10.29309/tpmj/2017.24.04.1455.

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Background: Nutrition is an important determinant of bone health. Micronutrients,other than calcium has been paid less attention to-date in the prevention and treatment of bonediseases. Objective: To evaluate the protective effect of zinc on high salt induced gross changesin humerus and femur of rats. Study design: Analytical control randomized trial. Place andduration of study: Islamic International Medical College, Rawalpindi, hosted the research withthe cooperation of National Institute of Health; Islamabad. The study was approved by Ethicalreview committee of Riphah international university before its initiation. It took six months tocomplete the research (Sep 2015-March 2016). Material and methods: Forty five adult femaleSprague Dawley, 10-12 weeks old rats were used in the study. Three groups were made, eachhaving fifteen rats. Control group C (N=15) received laboratory diet without any alteration.Experimental group A (N=15) were served with high salt diet (8%NaCl) whereas experimentalgroup B (N=15) animals were given high salt diet augmented with zinc (50mg/kg/day).Allgroups were given the diet for eight weeks. Animals were weighed at the start and end ofstudy after which they were sacrificed. Left humeri and femora of all rats were obtained. Weightand mid shaft diameters of bones were recorded. The results were compiled after comparisonamongst all the groups. Results: Marked gross changes were witnessed in experimentalgroups. These changes were of greater severity in high salt diet group as compared to the zincsupplemented group in which reverse beneficial effects were noticed. After zinc administration,there was substantial increase in the weight of animals and bones with concurrent increase inmid shaft diameters. Conclusion: Zinc has a Protective role against high salt induced damageon the gross parameters of bones.

Fatma Tugce Senberber Dumanli, Fatma Tugce Senberber Dumanli, Azmi Seyhun Kipcak Azmi Seyhun Kipcak e Duygu Sena Vardar and Nurcan Tugrul Duygu Sena Vardar and Nurcan Tugrul. "Ultrasonic-Assisted Synthesis of Zinc Borates: Effect of Boron Sources". Journal of the chemical society of pakistan 42, n. 6 (2020): 839. http://dx.doi.org/10.52568/000703.

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Sonochemistry meaning ultrasound-assisted chemistry plays an important role in the synthesis of inorganic compounds. Among these inorganic compounds, zinc borates are used for the flame-retarding agent. In this study using zinc chloride (ZnCl2), boric acid (H3BO3), Na2B4O7and#183;10H2O, Na2B4O7and#183;5H2O and NaOH as raw materials, a zinc borate compound in the formulae of Zn3B6O12and#183;3.5H2O was obtained using an ultrasonic probe. Crystal structures of samples were identified using X-ray diffraction (XRD). The symmetric and asymmetric stretching between boron and oxygen atoms were searched by Fourier-transform infrared (FT-IR) and Raman spectroscopies. The effects of boron sources on sample morphology were examined by scanning electron microscopy (SEM). From the results, it was seen that Zn3B6O12and#183;3.5H2O can easily be produced from these raw materials with the synthesis parameters of 80-90and#176;C and 40-55 min. From the SEM results, it was seen that the minimum particle size obtained was 172 nm. Reaction efficiencies were calculated between 79.6 and 94.0 and#177; 0.5%. Thermal feature of the obtained pure phase, investigated with the thermogravimetric analyses. The dehydration of the synthesized Zn3B6O12and#183;3.5H2O was seen between 262 and 413and#176;C with a total mass loss of 13.25%.

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Sair, Mohammad, Asma Inam, Sabahat Gul, Raheela Adil, Muhammad Adnan Sadiq e Muhammad Sajid Khan. "Effect of Zinc on Spermatogenesis". Pakistan Journal of Medical and Health Sciences 16, n. 1 (16 gennaio 2022): 43–45. http://dx.doi.org/10.53350/pjmhs2216143.

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Aim: To determine the effect of zinc on spermatogenesis Methodology: the study was done at Shahida Islam Medical Complex, Lodhran. 60 albino rats were selected and divided into 4 groups each consisting of 15 albino rats each. The first control group-1 was feed with normal diet, while the group-2 and group-3 were treated with indomethacin and zinc respectively. Whereas the group-4 was treated with both zinc and indomethacin. This intervention was carried out for 12 weeks. Once the study was concluded, the rats were euthanized and histopathological analysis of the testes was carried out to determine the effect on spermatogenesis. Results: group 4 showed favorable results in which normal spermatogenesis could be observed, in group 2 however, focal loss of germ cells series was seen as well as focal basement membrane detachment. Conclusion: the study can safely say that zinc metal exhibits a protective role on the testes of albino rats Keywords: Spermatogenesis, Albino rats, Zinc, Indomethacin, Sertoli cells

WAKAMATSU, Jun-ichi, Ayana KATO, Misako EZOE e Takanori NISHIMURA. "Effect of zinc protoporphyrin IX on dietary zinc bioavailability". Nihon Chikusan Gakkaiho 86, n. 4 (2015): 481–89. http://dx.doi.org/10.2508/chikusan.86.481.

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Phutphongsai, Anusorn, e Sirirat Wacharawichanant. "F-2 EFFECT OF ZINC OXIDE ON THE MECHANICAL PROPERTIES OF COMPATIBILIZED POLYPROPYLENE/ZINC OXIDE COMPOSITES(Session: Composites I)". Proceedings of the Asian Symposium on Materials and Processing 2006 (2006): 117. http://dx.doi.org/10.1299/jsmeasmp.2006.117.

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Benrashid, Ramazan, Gordon L. Nelson, Donald J. Ferm e Leland W. Chew. "Effect of Zinc, Zinc Oxide and Zinc Borate on the Flammability of Polycarbonate". Journal of Fire Sciences 13, n. 3 (maggio 1995): 224–34. http://dx.doi.org/10.1177/073490419501300305.

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Polycarbonate was blended with zinc, zinc borate (2ZnO·3B2O 3·3.5H2O) and zinc oxide. Blends made of zinc/polycarbonate and especially zinc borate/polycarbonate show major improvement in oxygen index values. Ohio State University (OSU) heat release studies show reduction in heat release only for zinc borate/polycarbonate blends compared to virgin polycarbonate. No improvement in smoke suppression was observed from NBS Smoke Chamber studies for these blends. From DSC studies there was a low ering of Tg's. Thermogravimetric analyses show the blends have lower tempera ture stability in nitrogen (50% weight loss) compared to a control.

Vasilyev, D. V. "EFFECT OF ZINC CONTAMINATED SOIL ON THE SEEDS PROGENY ABOUT BARLEY". European Journal of Natural History, n. 1 2021 (2021): 3–6. http://dx.doi.org/10.17513/ejnh.34140.

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Li, Mei, Jian Chun Jiang, Shou Hai Li, Kun Huang e Jian Ling Xia. "Study on Synthesis and Synergetic Effect of Novel Bio-Based PVC Thermal Stabilizer from Dimer Fatty Acid and Polymerized Rosin". Advanced Materials Research 721 (luglio 2013): 173–76. http://dx.doi.org/10.4028/www.scientific.net/amr.721.173.

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Calcium zinc monomer salts were prepared via simple one-step double decomposition reaction with the aid of DA and PR as raw materials. FTIR analysis demonstrated that calcium zinc monomer salts of DA and PR have been successfully synthesized. The synergistic effect between DA-based and PR-based calcium zinc monomer salts, the effects of addition amount of DOP and the synergistic effects between epoxidized soybean oil (ESO) and calcium/zinc stabilizers on thermal stability of PVC were analyzed by means of the Congo-red paper, torque rheometer and thermogravimetric analysis methods. The results showed that preferable synergistic stabilizing effects were observed when DA calcium/zinc salt and polymerized rosin calcium/zinc salt were used together. In addition, appropriate dosage of DOP could inhibit the thermal degradation of PVC, and ESO also have certain synergetic effect with prepared novel calcium/zinc stabilizers.

Aisyah, S., e M. Tafsin. "The effect of vitamin C and zinc supplementation on performance and physiology of joper at various density of cages". IOP Conference Series: Earth and Environmental Science 977, n. 1 (1 giugno 2022): 012129. http://dx.doi.org/10.1088/1755-1315/977/1/012129.

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Abstract Vitamin C and zinc have an important role in the environment and the sustainability of chicken production. The purpose of this study was to determine the response of vitamin C and zinc supplementation to the performance and physiology of joper at various density of cage. A total of 324 experimental (unsex) chicken were used in this study. The experimental design used a complete randomized design of factorial pattern consisting of 2 factors, factor A was vitamin C and zink supplementation and factor B was cage of density, each treatment was repeated 3 times. The data were analyze by analysis of variance and continued with Dunan’s test if there was a significant effect of 0.05% level. The results showed that vitamin C and zinc supplementation had no significant effect (P>0.05) on ration consumption, body weight gain, ration conversion, rectal temperature and respiratory frequency. The parameter of densities the cage had a significant effect (P<0.05). Conclusions that vitamin C and zinc supplementation had no significant effect on the performance and physiology of joper and there was interaction on rectal temperature when vitamin C and zinc supplementation and density of cage were applied together.

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Tesi sul tema "Effect of zinc on":

Nedic, Stanko. "Zinc oxide nanowire field effect transistors". Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708233.

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Thomas, Louise. "The effect of zinc deprivation on protein energy and zinc metabolism in man". Thesis, University of Aberdeen, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245359.

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Dietary zinc deficiency was induced in four healthy male volunteers. The diet used was high in phytate (phytate:zinc molar ratio 381) and the depletion period was preceded by a 3 day starvation period. In the depletion period, there was a significant decrease in plasma zinc and urinary zinc excretion. The subjects also adapted to the low zinc intake by decreasing the faecal excretion of zinc. One subject (No.2) developed clinical signs of zinc deficiency and also had the lowest plasma zinc concentration at the end of the depletion stage. Whole body protein turnover was assessed by an 8hr primed constant infusion of Li-[1-¹³C]leucine. Zinc deficiency had an effect on whole body protein turnover in only one subject (No. 2). In this subject, there was a decrease in leucine oxidation (71%), protein synthesis (31%) and degradation (39%). In this group as a whole, zinc depletion was associated with a significant decrease in urinary excretion of 3-methylhistidine. Zinc deficiency appeared to have no effect on substrate utilization. With regard to zinc kinetics, zinc deficiency was associated with a significant decrease in the size of the plasma zinc pool and a liver pool. There was also a decrease in the flux between these two zinc pools, and an increase in the fractional decay of zinc from the plasma pool to the liver pool. Two further studies were carried out. In 4 volunteers the effect of a 3 day starvation period on whole body protein turnover and zinc kinetics was investigated. There was a significant increase in leucine oxidation and in the size of a liver zinc pool. In 6 volunteers, the effect of phytate on zinc kinetics was investigated. The addition of phytate to the test meal, (phytate:zinc molar ratio 88) was associated with a decrease in the size of a liver zinc pool.

Neilsen, Denise. "Characterization and plant availability of zinc in British Columbia orchard soils". Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72835.

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Turner, Gary Chandler. "Zinc Oxide MESFET Transistors". Thesis, University of Canterbury. Electrical and Computer Engineering, 2009. http://hdl.handle.net/10092/3439.

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Zinc oxide is a familiar ingredient in common household items including sunscreen and medicines. It is, however, also a semiconductor material. As such, it is possible to use zinc oxide (ZnO) to make semiconductor devices such as diodes and transistors. Being transparent to visible light in its crystalline form means that it has the potential to be the starting material for so-called 'transparent electronics', where the entire device is transparent. Transparent transistors have the potential to improve the performance of the electronics currently used in LCD display screens. Most common semiconductor devices require the material to be selectively doped with specific impurities that can make the material into one of two electronically distinct types – p- or n-type. Unfortunately, making reliable p-type ZnO has been elusive to date, despite considerable efforts worldwide. This lack of p-type material has hindered development of transistors based on this material. One alternative is a Schottky junction, which can be used as the active element in a type of transistor known as a metal-semiconductor field effect transistor, MESFET. Schottky junctions are traditionally made from noble metal layers deposited onto semiconductors. Recent work at the Canterbury University has shown that partially oxidised metals may in fact be a better choice, at least to zinc oxide. This thesis describes the development of a fabrication process for metal-semiconductor field effect transistors using a silver oxide gate on epitaxially grown zinc oxide single crystals. Devices were successfully produced and electrically characterised. The measurements show that the technology has significant potential.

Lopes, Sílvia Ferreira. "Effect of zinc oxide nanoparticles in Daphnia magna". Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10258.

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Mestrado em Biologia Aplicada - Toxicologia e Ecotoxicologia
O rápido desenvolvimento da nanotecnologia com o consequente aumento na produção de nanopartículas e nanoprodutos oferece muitas oportunidades mas também muitos desafios. A nanotecnologia tem vindo a ser descrita como uma área multidisciplinar que visa desenvolver uma variedade de nanoparticulas para aplicações medicinais e industriais. As propriedades que trazem às nanoparticulas especial atenção – pequeno tamanho, elevada área de superfície e consequente elevado grau de reatividade – podem também torná-las potencialmente perigosas para a saúde humana e para o ecossistema. A avaliação dos potenciais riscos inerentes à exposição das nanoparticulas torna-se portanto uma investigação de prioridade antes que estas sejam aplicadas em produtos comerciais e libertadas para o ambiente. Os ambientes aquáticos (de água doce e marinho) são considerados como potenciais destinos das nanoparticulas libertadas para o ambiente através de fontes diretas e/ou indiretas, expondo assim os organismos aquáticos a elevados níveis de contaminação. As nanoparticulas de óxido de zinco (ZnO-NPs) são uma das nanoparticulas mais utilizadas numa vasta gama de produtos comerciais (ex: protetores solares, cosméticos e tintas) e a sua produção estima-se que irá continuar a aumentar nos próximos anos. Em consequência, o risco de contaminação aquática por parte destas nanoparticulas irá forçosamente aumentar. Estudos toxicológicos já demonstraram que as ZnO-NPs exercem efeitos tóxicos em vários organismos, como por exemplo, em crustáceos, algas e bactérias. Os efeitos tóxicos das nanoparticulas são complexos e podem estar dependentes de vários fatores, tais como, o organismo-teste, fatores abióticos (pH, salinidade, dureza da água e presença de matéria orgânica), propriedades físico-quimicas das nanoparticulas, processos de adsorção, presença de outros contaminantes, entre outros. Os objetivos principais deste trabalho consistiram em avaliar a toxicidade das ZnO-NPs com diferentes tamanhos (30 e 80-100 nm) no cladócero Daphnia magna e comparar estes efeitos com os homólogos de tamanho micrómetro (ZnO > 200 nm) e a forma iónica (ZnCl2). Os efeitos foram avaliados nos parâmetros de imobilização, inibição alimentar e reprodução. Os resultados mostraram uma relação dose-resposta entre o decréscimo dos parâmetros avaliados e a concentração das ZnONPs, ZnO de tamanho micrómetro e ZnCl2 testadas. De acordo com os resultados obtidos foi possível concluir que o ZnCl2 induziu maior toxicidade aguda para a D. magna. Contudo, para a reprodução e inibição alimentar, as nanoparticulas de ZnO mostraram ter um efeito mais tóxico. Foi observado igualmente que o tamanho das nanopartículas não influenciou a toxicidade do ZnO. Este estudo realça a importância de se estudarem os efeitos de nanoparticulas de diferentes tamanhos uma vez que este é um parâmetro-chave que deve ser considerado quando se pretende estudar a toxicidade de nanoparticulas para o ambiente.
The rapid development of nanotechnology with the consequent increase in the production of nanoparticles and nanoproducts presents many opportunities but also many challenges. Nanotechnology has been described as a multidisciplinary field that develops a variety of engineered nanoparticles (ENPs) for medical and industrial applications. The properties that bring to ENPs special attention for commercial products – small size, large surface area and consequently high degree of reactivity – can also make them potentially harmful for human and ecosystem health. Therefore, assessing the potential risks associated with exposure of ENPs should be considered a major research priority before they are applied in commercial products and released to the environment. Aquatic (freshwater and marine) environment act as potential destinations for the ENPs released to the environment through direct and/or indirect sources, thus exposing aquatic organisms to high levels of pollutants. Zinc oxide nanoparticles (ZnO-NPs) are one of the ENPs most applied in a wide range of commercial products (e.g., sunscreens, cosmetics and paints) and its production is estimated to continue to rise in the upcoming years. As a consequence, the risk of aquatic environment contamination by these ENPs will increase. Toxicological studies have already demonstrated that nanoscale ZnO exert toxic effects in several organisms, such as crustaceans, algae and bacteria. The toxic effects of ZnO-NPs can be complex and may be dependent of several factors such as organism tested, abiotic factors (pH, salinity, water hardness, presence of natural organic matter), physico-chemical properties of NPs, adsorption phenomena, presence of other pollutants in the same environment, among others.

Khan, Habib Ur Rahman. "Responses of chickpea (Cicer arietinum L.) to zinc supply and water deficits". Title page, contents and summary only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phk4446.pdf.

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Bibliography: leaves 201-228. Widespread deficiencies of mineral nutrients in soils along with limited moisture supply are considered major environmental stresses leading to yield losses in chickpea. This study was conducted to determine the zinc requirement of chickpea and the effect on plant water relations. Critical zinc concentration was estimated. It was found that high and low moisture regimes had no effect on critical zinc concentration and that the value remained almost the same in all chickpea genotypes. Sensitivity of 28 chickpea genotypes were evaluated at two zinc levels. Field studies on zinc fertilization in both Australia and Pakistan showed that the application of zinc increased grain yield in all chickpea genotypes. It was found that plants grown under zinc deficiency could not exploit available soil moisture and water use and water use efficiency was reduced, and concluded that high zinc availability may enhance the ability of plants to endure periods of drought by promoting osmotic adjustment.

Steel, Helen Carolyn. "Metabolic responses to in vitro zinc supplementation". Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1004101.

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The present study was carried out to determine the effects and possible mechanism of action of zinc supplementation on the in vitro growth of malignant murine melanoma (B16) and non-malignant monkey kidney (LLCMK) cells. Cell culture studies showed that zinc supplementation significantly inhibited B16 growth at all the concentrations studied (1, 3, 5 and lOμg/ml). Zinc was also found to inhibit the growth of the LLCMK cells, although to a lesser extent than the B16 cells. Possible evidence of mobilisation of the essential fatty acids from the membrane phospholipid stores was noted in both cell types. This effect was, however, greater in the B16 cells. Δ⁶-desaturase activity was found to be significantly lower in the B16 cells than in the LLCMK cells (p ≥ 0.05). Zinc supplementation resulted in an increase in the enzymes activity in the LLCMK cells and, at high concentrations, in the B16 cells. An estimation of elongase and Δ⁶-desaturase activity with zinc supplementation indicated that zinc had little or no effect on the activity of these enzymes. B16 cells were found to have higher levels of free radicals than the LLCMK cells. Zinc supplementation resulted in increased free radical formation in the B16 cells, while no effect was observed in the LLCMK cells. Lipid peroxidation increased in both cell types with increased zinc concentrations. The observed effect of zinc supplementation on cell growth may involve these elevated levels of lipid peroxides. CycIo-oxygenase activity was found to be greater in the B16 cells than the LLCMK cells. The activity of the enzyme increased with higher concentrations of zinc (lOμg/ml) in both cell types. Prostaglandin E, levels were found to be lower in the B16 cells compared to the LLCMK cells. The levels of prostaglandin E, in both cell types appeared to be dependent on the levels of the polyunsaturated fatty acid precursors to the prostaglandins. Zinc was found to inhibit the activity of the enzyme adenylate cyclase in both cell types. The cAMP levels in the LLCMK cells were also found to decrease with zinc supplementation. In the case of the B16 cells, cAMP levels increased at low concentrations of zinc despite a decrease in adenyl ate cyclase activity, suggesting a possible inhibition of cAMP phosphodiesterase activity at these concentrations of zinc. It is concluded that although zinc supplementation does have an effect on cell growth, this effect is not mediated through the activation of adenylate cyclase by the prostaglandins resulting in elevated levels of cAMP. A possible mechanism involving lipid peroxidation is proposed.

Kalinowski, Juan. "Effect of low dietary zinc supply during pregnancy and lactation on the sow and the neonatal piglet". Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72019.

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Experiments were conducted with sows and littermate-gilts to investigate the effect of dietary zinc (Zn) restriction during either part or most of the pregnancy and lactation on dams and their offspring.
Reduced dietary Zn (13 ppm) during the last 4 wk of pregnancy and first 2 wk of lactation presented no serious consequences to the dam or offspring. Reduction of dietary Zn throughout pregnancy and lactation (10 ppm) caused overt signs of Zn deficiency in one-half of the gilts, however, their offspring exhibited no obvious abnormalities. Zinc restriction did not affect feed consumption but depressed plasma and urinary Zn and plasma alkaline phosphatase activity (APA). The use of the balance technique and radiotracers revealed that gilts deficient in Zn initiated protective mechanisms such as, increased Zn absorption reduced endogenous Zn excretion, prolongation of the biological half life of Zn; all these responses affected higher efficiency of Zn utilization.
Despite the protective mechanisms, gilts depleted in Zn exhibited prolonged stressful parturition and a high incidence of intrapartum and neonatal mortality than control gilts. Piglets from gilts depleted in Zn showed depressed birth weight, reduced concentrations of plasma Zn, Cu and ammonia and low APA and hematocrit, increased plasma concentrations of glucose and lactate, reduced content of Zn in liver, heart, lung, skin, bone and carcass and higher concentrations of Cu and Mn in various tissues compared to controls. Zinc depletion did not change the Zn content of colostrum but did change it in milk. Content of Cu, Fe, and Mn was effected in colostrum and milk. Weight of piglets was lower at one wk but not at two wk of age. Two-week old piglets exhibited lower Zn and higher Cu concentrations in plasma; reduced Zn and increased Cu and Mn concentrations in liver and bone and changes in Cu and Mn in other tissues. At the end of lactation, gilts depleted in Zn exhibited low level of Zn and APA in plasma; reduced Zn content in liver, spleen, heart, small intestine; increased Cu content in liver and small intestine; increased Zn and Mn content in brain.
Although gilts depleted in Zn exhibited a highly efficient handling of Zn via homeostatic mechanisms, the reduced amount of corporal exchangeable Zn in these gilts caused biochemical changes affecting the performance of the dam and the offspring. (Abstract shortened with permission of author.)

Brocavich-Nielsen, Juliann M. "Effect of dietary zinc and copper on plasma zinc, copper, total cholesterol in young adult males". Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03122009-040757/.

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Tiwale, Nikhil. "Zinc oxide nanowire field effect transistors for sensor applications". Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/268227.

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A wide variety of tunable physio-chemical properties make ZnO nanowires a promising candidate for functional device applications. Although bottom-up grown nanowires are producible in volume, their high-throughput device integration requires control over dimensions and, more importantly, of precise placement. Thus development of top-down fabrication routes with accurate device positioning is imperative and hence pursued in this thesis. ZnO thin film transistors (TFT) were fabricated using solution based precursor zinc neodecanoate. A range of ZnO thin films were prepared by varying process parameters, such as precursor concentrations and annealing temperatures, and then analysed for their optical and electrical characteristics. ZnO TFTs prepared from a 15 % precursor concentration and annealing at 700 $^\circ$C exhibited best device performance with a saturation mobility of 0.1 cm$^2$/V.s and an on/off ratio of 10$^7$. Trap limited conduction (TLC) transport was found to be dominant in these devices. A direct-write electron beam lithography (EBL) process was developed using zinc naphthenate and zinc neodecanoate precursors for the top-down synthesis of ZnO nanowires. Nanoscale ZnO patterns with a resolution of 50 nm and lengths up to 25 $\mu$m were fabricated. A linear mobility of 0.5 cm$^2$/V.s and an on/off ratio of $\sim$10$^5$ was achieved in the micro-FETs with 50 $\mu$m channel width. Interestingly, on scaling down the ZnO channel width down to 100 nm, almost two orders of magnitude enhancement in the linear mobility was observed, which reached $\sim$33.75 cm$^2$/V.s. Such increment in the device performance was attributed to the formation of larger grains and thus reduction in the grain-boundary scattering. Six volatile organic compounds (VOCs) were sensed at room temperature using the direct-write EBL fabricated ZnO devices under UV sensitisation. As the surface-to-volume ratio increases with the decreasing channel width (from 50 $\mu$m to 100 nm), sensing response of the ZnO devices becomes more significant. Ppm level detection of various VOCs was observed; with a 25 ppm level Anisole detection being the lowest concentration. Additionally, using 100 nm device, detection of 10 ppm NO$_2$ was achieved at room temperature. The sensing response towards NO$_2$ was found to be increased with UV illumination and sensor temperature. This led to exhibit $\sim$171 % sensing response for a 2.5 ppm level of NO$_2$.

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Libri sul tema "Effect of zinc on":

Prasad, Ananda S. Biochemistry of zinc. New York: Plenum Press, 1993.

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Rink, Lothar. Zinc in human health. Amsterdam: IOS Press, 2011.

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International Symposium on "Zinc in Soils and Plants" (1993 University of Western Australia). Zinc in soils and plants: Proceedings of the International Symposium on "Zinc in Soils and Plants," held at the University of Western Australia, 27-28 September, 1993. Dordrecht: Kluwer Academic Publishers, 1993.

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Schaefer, R. J. Interaction of zinc vapor with Zircaloy and the effect of zinc vapor on the mechanical properties of zircaloy. Washington, DC: U.S. Nuclear Regulatory Commission, 2000.

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Kechrid, Zine. The effect of sub-optimal dietary zinc on zinc and carbohydrate metabolism in genetically diabetic mice. Norwich: University of East Anglia, 1987.

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Miyoshi, Kazuhisa. Effect of abrasive grit size on wear of manganese-zinc ferrite under three-body abrasion. [Washington, DC: National Aeronautics and Space Administration, 1987.

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Eisler, Ronald. Zinc hazards to fish, wildlife, and invertebrates: A synoptic review. Washington, D.C: U.S. Dept. of the Interior, Fish and Wildlife Service, 1993.

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Jin, Hong. Effect of copper or zinc deficiency on cytokine activities in mice. [S.l: The Author], 1994.

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Raikes, D. M. The dissolution characteristics of electrodeposited zinc-nickel and the effect of phosphorus. Manchester: UMIST, 1996.

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W, Maret, a cura di. Zinc biochemistry, physiology, and homeostasis: Recent insights and current trends. Dordrecht: Kluwer Academic Publishers, 2001.

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Capitoli di libri sul tema "Effect of zinc on":

Ohgai, T., H. Fukushima, N. Baba e T. Akiyama. "Effect of Polymer Additives on Zinc Electrowinning". In Lead-Zinc 2000, 855–64. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118805558.ch58.

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Jin, S., E. Ghali, G. St-Amant, V. Cloutier e G. Houlachi. "The Effect of Microstructure on the Electrochemical Behavior of Lead-Silver Alloy Anodes During Zinc Electrowinning". In Lead-Zinc 2000, 845–54. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118805558.ch57.

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Klingshirn, C. "Nonlinear Optics, High Density Effects and Stimulated Emission". In Zinc Oxide, 275–306. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-10577-7_11.

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Zhu, Ren, e Rusen Yang. "Piezotronic Effect in a Zinc Oxide Nanowire". In Mechanical Engineering Series, 39–52. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-70038-0_4.

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Prasad, Ananda S. "Zinc and immunity". In Molecular and Cellular Effects of Nutrition on Disease Processes, 63–69. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5763-0_8.

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Lupi, C., D. Pilone e E. Beltowska-Lehman. "Effect of Impurity Presence in Zinc Chloride Electrowinning". In Electrometallurgy and Environmental Hydrometallurgy, 1194–203. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118804407.ch9.

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Yilmaz, A., H. Ekiz, I. Gültekin, B. Torun, S. Karanlik e I. Cakmak. "Effect of seed zinc content on grain yield and zinc concentration of wheat grown in zinc-deficient calcareous soils". In Plant Nutrition for Sustainable Food Production and Environment, 283–84. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-0047-9_82.

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Grainger, Reid J., Samuel Ko, Eugene Koslov, Ales Prokop, Robert D. Tanner e Veara Loha. "Effect of Shear on Human Insulin in Zinc Suspension". In Twenty-First Symposium on Biotechnology for Fuels and Chemicals, 761–68. Totowa, NJ: Humana Press, 2000. http://dx.doi.org/10.1007/978-1-4612-1392-5_59.

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Akiyama, Machiko, Masami Kobayashi, Hideo Kise, Shinichi Takaichi, Tadashi Watanabe, Keizo Shimada, Masayo Iwaki et al. "Acidiphilium Rubrum and Zinc-Bacteriochlorophyll Part 1: Molecular Structure of the Zinc-Containing Bacteriochlorophyll". In Photosynthesis: Mechanisms and Effects, 731–34. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-3953-3_171.

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Frederickson, Christopher J., e Ashley I. Bush. "Synaptically released zinc: Physiological functions and pathological effects". In Zinc Biochemistry, Physiology, and Homeostasis, 167–80. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-017-3728-9_10.

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Atti di convegni sul tema "Effect of zinc on":

Roy, V. A. L., Zong-Xiang Xu, Beiping Yan, Hei-Feng Xiang e Chi-Ming Che. "Zinc-oxide based nano-composite field effect transistor devices". In Organic Field-Effect Transistors V. SPIE, 2006. http://dx.doi.org/10.1117/12.679760.

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Sagan, V. V., e N. V. Bogdanova. "EFFECT OF ZINC CHLORIDE ON INSULIN FIBRILLATION". In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-2-14-17.

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Abstract (sommario):

The influence of temperature and mechanical factors on insulin fibril formation was revealed. It was found that during the incubation of insulin for 30 hours, the concentration of fibrils increases compared to the control. It was shown that the incubation of insulin with zinc chloride led to a decrease in insulin fibril formation.

Tapiero, Mayer. "Effect of zinc in codoped photorefractive CdTe:Zn:V". In International Symposium on Optical Science and Technology, a cura di Francis T. S. Yu e Ruyan Guo. SPIE, 2002. http://dx.doi.org/10.1117/12.456549.

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Sadanandan, Sajith Jayasree. "Effect of zinc supplementation in children with asthma". In ERS International Congress 2021 abstracts. European Respiratory Society, 2021. http://dx.doi.org/10.1183/13993003.congress-2021.pa2173.

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Saidi, S. A., M. H. Mamat, A. S. Ismail, M. M. Yusoff, M. F. Malek, N. D. Md Sin, A. S. Zoolfakar, Z. Khusaimi e M. Rusop. "Effect of deposition speed on properties of zinc oxide nanoparticle decorated zinc oxide nanorod arrays". In 2016 IEEE Student Conference on Research and Development (SCOReD). IEEE, 2016. http://dx.doi.org/10.1109/scored.2016.7810066.

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Desai, A. V., e M. A. Haque. "Effect of Electromechanical Coupling on the Young’s Modulus of Zinc Oxide Nanowires". In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49911.

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The Young’s modulus of zinc oxide nanowires was measured to be significantly lower than bulk zinc oxide, which cannot be explained within the framework of existing theories. We propose that the strong electromechanical coupling in piezoelectric materials, such as zinc oxide, influences the measured mechanical properties. The asymmetric wurtzite crystal structure and the ionic nature of the molecular bonding result in internal electric fields during straining of the zinc oxide nanowire, which in turn lead to reduction in the measured modulus. In case of flexural deformation, additional electromechanical coupling is present due to the flexoelectric effect.

KAYA, Gulhan USTABAS, e Tugba Ozge ONUR. "Investigation of The Focusing Effect on The Reconstructed Image Quality in Digital Holographic Microscopy". In 2020 Zooming Innovation in Consumer Technologies Conference (ZINC). IEEE, 2020. http://dx.doi.org/10.1109/zinc50678.2020.9161444.

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Peiró, Ana M., P. Ravirajan, K. Govender, D. S. Boyle, P. O'Brien, D. D. C. Bradley, J. Nelson e J. R. Durrant. "The effect of zinc oxide nanostructure on the performance of hybrid polymer/zinc oxide solar cells". In Optics & Photonics 2005, a cura di Zakya H. Kafafi e Paul A. Lane. SPIE, 2005. http://dx.doi.org/10.1117/12.617555.

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Saidi, S. A., M. H. Mamat, A. S. Ismail, M. F. Malek, M. M. Yusoff, N. D. Md Sin, A. S. Zoolfakar, Z. Khusaimi e M. Rusop. "Effect of intrinsic zinc oxide coating on the properties of Al-doped zinc oxide nanorod arrays". In 8TH INTERNATIONAL CONFERENCE ON NANOSCIENCE AND NANOTECHNOLOGY 2017 (NANO-SciTech 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5036884.

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Dmitrieva, Dar'ya, Ekaterina Ryzhkova e El'vira Kolmachikhina. "Effect of surfactants on cementation treatment of zinc solutions". In VII Information school of a young scientist. Central Scientific Library of the Urals Branch of the Russian Academy of Sciences, 2019. http://dx.doi.org/10.32460/ishmu-2019-7-0017.

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Rapporti di organizzazioni sul tema "Effect of zinc on":

Korinko, P. EFFECT OF PORE SIZE ON TRAPPING ZINC VAPORS. Office of Scientific and Technical Information (OSTI), dicembre 2010. http://dx.doi.org/10.2172/1025511.

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Korinko, P. EFFECT OF FILTER TEMPERATURE ON TRAPPING ZINC VAPOR. Office of Scientific and Technical Information (OSTI), marzo 2011. http://dx.doi.org/10.2172/1025512.

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Korinko, P., e M. Golyski. EFFECT OF THERMAL PROCESSES ON COPPER-TIN ALLOYS FOR ZINC GETTERING. Office of Scientific and Technical Information (OSTI), novembre 2013. http://dx.doi.org/10.2172/1098218.

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Coughlin, D., B. Looney e M. Millings. CHRONIC ZINC SCREENING WATER EFFECT RATIO FOR THE H-12 OUTFALL, SAVANNAH RIVER SITE. Office of Scientific and Technical Information (OSTI), gennaio 2009. http://dx.doi.org/10.2172/946164.

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Morton, D. S., C. D. Thompson, D. Gladding e M. K. Schurman. Effect of soluble zinc additions on the SCC performance of nickel alloys in deaerated hydrogenated water. Office of Scientific and Technical Information (OSTI), agosto 1997. http://dx.doi.org/10.2172/319774.

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Veverka, Donald, Candy Wilson, Deborah Jones, Anneke Bush e Peter Kober. Effect of Zinc Supplements on Preventing Upper Respiratory Infections in Air Force Academy Cadets in Basic Training. Fort Belvoir, VA: Defense Technical Information Center, gennaio 2009. http://dx.doi.org/10.21236/ada497496.

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Alwin, Jennifer Louise. Effect of Operating Parameters and Chemical Additives on Crystal Habit and Specific Cake Resistance of Zinc Hydroxide Precipitates. Office of Scientific and Technical Information (OSTI), agosto 1999. http://dx.doi.org/10.2172/10599.

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Genther-Schroeder, Olivia N., e Stephanie L. Hansen. Effect of Zinc Amino-Acid Complex and Optaflexx Feeding Duration on Growth Performance and Carcass Characteristics of Finishing Cattle. Ames (Iowa): Iowa State University, gennaio 2016. http://dx.doi.org/10.31274/ans_air-180814-562.

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SE Ziemniak e ME Hanson. Zinc Treatment Effects on Corrosion Behavior of Alloy 600 in High Temperature, Hydrogenated Water. Office of Scientific and Technical Information (OSTI), novembre 2004. http://dx.doi.org/10.2172/837668.

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Michie, Mark W., Richard A. Angerhofer, Mary P. Barlow e Patricia A. Beall. Effects of Ingestion of Zinc Naphthenate on the Reproduction Function of Rats. Phase 5. Fort Belvoir, VA: Defense Technical Information Center, febbraio 1988. http://dx.doi.org/10.21236/ada235224.

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