Academic literature on the topic 'Protection mechanism'

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Dissertations / Theses on the topic "Protection mechanism"

1

Li, Weiyao. "Understanding UV Protection Mechanism of Natural and Synthetic Eumelanin." University of Akron / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=akron1491930546268438.

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2

Lai, Vien Khach. "Characterisation and mechanism of bone marrow cell-induced myocardial protection." Thesis, University of Leicester, 2010. http://hdl.handle.net/2381/9970.

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It is controversial whether the administration of bone marrow cells (BMCs) can repair the heart after an ischaemic insult and whether the mechanism of the putative beneficial effect is due to a paracrine action. By using an experimental model of simulated ischaemia of the atrial myocardium, I set up this thesis to understand the protective properties of BMCs on the human myocardium with different clinical conditions and to investigate the underlying mechanism. The results provide clear data that myocardial protection of BMCs is dose-dependent with a maximal protection, comparable to that of ischemic preconditioning, at a dose of ~1.5x106 cells/mg wet myocardium and that the similar effect can be achieved when BMCs were present before, during or after ischaemia. Allogeneic BMCs are as protective as the autologous cells and their capacity is unaffected by frozen storage or culture, but lost by magnetic isolation. In addition, the conditioned media, obtained after 30min of incubation of BMCs, can induce a protection similar to that of BMCs, an effect that is abolished by selective blockade of the insulin-like growth factor-1 receptor. Furthermore, disease states such as diabetes and poor left ventricular function or the long-term administration of the mitochondrial KATP channel opener nicorandil prevents the protective effect of BMCs, a consequence that appears to be due to an alteration in the myocardium for diabetes and nicorandil and mainly due to a defect in BMCs and also to a less responsive myocardium in heart failure. A final clinical study aimed to elucidate the effect of BMCs during cardiac surgery showed that BMCs have no additive protection to conventional cardioplegia during coronary artery bypass grafting. In this thesis I have characterised the cardioprotective potential of BMCs and identified some of the underlying mechanisms. The results are of clinical interest and they should generate novel hypotheses.
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3

Indria, Andriani. "The environmental protection and the economical mechanism of its regulation." Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/9975.

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4

Netzer, Julia Clarissa [Verfasser], and Oliver [Akademischer Betreuer] Einsle. "Investigation of the protection mechanism of nitrogenase by the Shethna protein." Freiburg : Universität, 2016. http://d-nb.info/1122647700/34.

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5

Ziebell, Heiko. "Investigating the mechanism(s) underlying cross-protection of cucumber mosaic virus strains." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613299.

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6

Zheng, Xueyan. "Regioselective Synthesis of Cellulose Esters." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/49540.

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Cellulose is an extraordinarily abundant polymer that can be harvested and purified from trees and other renewable sources. Cellulose derivatives have been widely used as coatings, optical films, fibers, molded objects, and matrices for controlled release. The properties of cellulose derivatives are not only affected by the degree of substitution, but also by the position of substitution. In order to establish the structure-property relationships of cellulose derivatives, it is of great importance to impart regioselectivity into functionalized cellulose. However, regioselective substitution of cellulose is extremely challenging, especially in the synthesis of regioselectively functionalized cellulose esters due to the unstable ester bond under aqueous alkaline or acid conditions. In this dissertation, the main objective is to search for new tools to synthesize regioselectively substituted cellulose esters, to understand how structural changes impact properties and performance, and thus to design cellulose derivatives delivering high performance. Several strategies for regioselective preparation of cellulose esters are discussed in detail. The obtained regioselective cellulose esters were fully characterized analytically.<br>Ph. D.
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7

Matrosov, Pavel Igorevich. "Comparative analysis of constitutional law mechanism for human rights protection in Canada and Russia." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80941.

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This thesis offers a comparative analysis of the Constitutional law mechanism for human rights protection in Canada and Russia. Russia is experiencing a transition from the former soviet regime towards democracy and civil society. Since the beginning of the transition in 1991 Russia has made three major steps in that direction: the adoption of the Declaration of Rights and Freedoms of the Individual and Citizen of 1991, the Constitution of 1993 and the ratification of the European Convention on Human Rights in 1998. However, the existent constitutional law mechanism for human rights protection is not fully effective due to its novelty for Russian society. A number of lessons can be learned from the Canadian and European experiences of human rights protection. Among them is the necessity to build the mechanism for human rights protection that will be based on the rule of law, direct application of the Constitution, and the creation of a human rights culture, supported by the people's trust in independent judicial institutions.
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8

Harrison, Kate. "The Community Resource Registry, a mechanism for the protection of indigenous and local knowledge." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ52350.pdf.

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9

Harrison, Kate (Kate Stephanie) Carleton University Dissertation International Affairs. "The Community resource registry; a mechanism for the protection of indigenous and local knowledge." Ottawa, 2000.

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10

Martirosyan, Nelli. "Protecting IP at the Border : A Study of Customs Enforcement Mechanism for Protection of Intellectual Property Rights in the Eurasian Economic Union." Thesis, Uppsala universitet, Juridiska institutionen, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-412925.

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