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Showing 1 to 20 of 185 for “"Free Radicals"”.
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Nuclear Relaxation in Solutions of Free Radicals
Made available in DSpace on 2014-12-05T19:38:18Z (GMT). No. of bitstreams: 1 6305152.pdf: 2149245 bytes, checksum: 7c5662a43d552b0ac8241aa99dea1832 (MD5) Previous issue date: 1963
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A study of selected water-soluble hydrazyl free radicals
… and oxygenic species (RNS/ROS). Many RNS/ROS are free radicals. In response, a stable water-soluble free radical able to react with other free radicals could, in theory, act as a free-radical scavenger in vivo and detect, decrease or eliminate harmful free-radical activity. Salts of water-soluble …
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Formation, characterization, and chemical reactions of free radicals in lignin
Free radicals are produced in lignin during mechanical treatment and irradiation with light of various wavelengths. During mechanical treatment, the lignin macromolecule is degraded severely as revealed by ESR and viscosity measurements. Several types of mechano-radicals are produced in lignin …
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Electron spin resonance studies of transient amido and sulfonamido free radicals
Digitized by Kansas Correctional Industries
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Electron spin resonance studies of transient amido and sulfonamido free radicals
Digitized by Kansas Correctional Industries
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Some Reactions of Free Radicals and Grignard Reagents with Organosilicon Compounds
… of vinyl- and allyltrimethylsilane toward free radical addition by n-dodecanethiol have been investigated. The factors affecting the reactivities of the various ω-alkenylsilanes toward radical addition reagents are discussed. Unsuccessful attempts have been made to prepare compounds …
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Molecular detection and charcaterisation of biologically relevant free radicals during surgical ischaemia-reperfusion
… plasma, with the capacity to prevents damage by free radicals. This thesis presents four studies investigating the phenomenon of Reactive Oxygen Species (ROS) generation in the many different surgical conditions in the animal and in the human. Study one investigated the geometry and thermodynamic …
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Magnetic Resonance Studies of Free Radicals Generation and their Impact in Different Polymers
<p>Studies of free radicals in the physics, chemistry, biology, and materials science have contributed to advancements in those fields. The presence of radicals can damage the material and system in some instances and, in some cases, they may enhance the property of the material as well. Knowledge …
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The involvement of free radicals in the casual mechanism of Motor Neurone Disease
The detoxification of free radicals at a cellular level is crucial for maintaining cell viability. The progressive loss of motor neurones associated with motor neurone disease (MND) may be due to acute or chronic free radical damage causing irreversible cell lesions. Perturbation in the mechanisms …
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Reactions of Hindered Phenols with Unsaturated Hydrocarbons in the Presence of Free Radicals
The reaction of hindered phenolic antioxidants , notably 2 ,6- -ditert-butyl-4-methyl-phenol (TBC) and 3,5-ditert-butyl-4-hydroxy-benzyl mercaptan (BHEM) with rubber has been investigated and the percentage of antioxidant bound under optimum conditions has been determined. The byproducts formed …
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A. Electronic Effects in Nuclear Magnetic Resonance. B. Electron Spin Resonance of Free Radicals
Made available in DSpace on 2014-12-05T19:36:38Z (GMT). No. of bitstreams: 1 0023325.pdf: 3793034 bytes, checksum: d33c2e18fb890b7a799c203cbe1811bb (MD5) Previous issue date: 1957
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The correlation between the health behaviors of males and the degree of oxygen free radicals
본 연구는 활성산소 수준에 영향을 미치는 요인에 관한 탐색적 연구이며, 일상생활과 관련된 흡연, 비만, 기타 건강행위에 초점을 두었다. 구체적인 연구문제는 다음과 같이 상정하였다. 첫째, 조사대상자의 일반적 특성과 건강실태를 파악한다. 둘째, 조사대상자의 일반적 특성과 건강행위에 따라 활성산소 수준에 차이가 있는지 파악한다. 셋째, 조사대상자의 건강행위가 활성산소 수준에 미치는 어떠한지 알아본다.
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The Reaction Kinetics of Neutral Free Radicals and Radical Ions Studied by Laser Flash Photolysis
… dominating factor at 25°C, contributing to the free energy barrier for these reactions. Laser flash photolysis was also used to study radical anions. Using an indirect photoexcitation method, the properties of radical anions, generated from aryl ketones, were investigated. These radical anions, …
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The role of oxygen free radicals in the endotoxic shock induced myocardial dysfunction and cellular injury
… lead to increased production of oxygen free radicals (OFRs) and hypochlorous acid (HOCl). During ET-shock, OFRs could also be produced from other sources including auto-oxidation of catecholamines, xanthine-xanthine oxidase enzyme system during ischemia, and arachidonic acid metabolism. …
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Stimulation of lipid peroxidation by dihydroxyfumarate: The action of antioxidants and the role of free radicals
For abstract see full text.
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Radiofrequency Spectroscopy. A. Electron Spin Resonance in Free Radicals. B. Nuclear Magnetic Resonance in Heterocyclic Compounds
Made available in DSpace on 2014-12-05T19:36:56Z (GMT). No. of bitstreams: 1 5805485.pdf: 2708020 bytes, checksum: 69274de359c73105859962a1c137eba7 (MD5) Previous issue date: 1958
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The Role of IRAK-1 in the Regulation of Free Radicals and Oxidative Stress during Endotoxemia
… that may block LPS-mediated generation of free radicals may hold promise in treating various inflammatory disease processes. However, the molecular mechanisms underlying LPS-mediated ROS/RNS production are not fully defined. Interleukin-1 Receptor associated kinase (IRAK-1), an …
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Formation and Stabilization of Combustion-Generated Environmentally Persistent Free Radicals on Transition Metal Oxides Supported on Silica
The formation of environmentally persistent free radicals in combustion system was investigated from chemisorptions of chlorine- and hydroxy-substituted benzenes on transition metal oxide surface under post-combustion conditions. This manuscript reports the formation of EPFRs on silica particles …
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