Turkish Journal of Agriculture and Forestry http://journals.tubitak.gov.tr/agriculture/ Research Article Turk J Agric For (2014) 38: 55-61 © TÜBİTAK doi:10.3906/tar-1212-4 Oxidative stress and antioxidant defense mechanism in mung bean seedlings after lead and cadmium treatments Meher HASSAN‚ Simeen MANSOOR* Department of Genetics‚ University of Karachi‚ Karachi‚ Pakistan Received: 02.12.2012 Accepted: 25.05.2013 Published Online: 13.12.2013 Printed: 20.01.2014 Abstract:
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The term oxidative stress has been often used to indicate the outcome of oxidative damage to biologically relevant macromolecules such as: nucleic acids‚ proteins‚ lipids and carbohydrates. This occurs when oxidative stress-related molecules‚ produced in the extracellular environment or within the cell exceed cellular antioxidant defenses (Cadenas‚ 1989). Molecular oxygen can easily accept unpaired electrons giving rise to a group of partially reduced species‚ generally termed ROS. The ROS include:
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The Danger of Oxidative Stress A look into the mechanism and effects of Oxidative Stress Annisa Rumahorbo 3/17/2017 Abstract The author’s purpose of this paper was to determine if oxidative stress could be related to major diseases. The author read and analyzed several articles regarding free radicals and oxidative stress and also a number of field reports of experiments that related to oxidative stress and other diseases. Most of the data the author uses were found from the online database
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What is the difference between oxidative and substrate level phosphorylation? Oxidative phosphorylation is a metabolic pathway that uses energy released by the oxidation of nutrients to produce ATP. Oxidative phosphorylation uses the electrochemical gradient‚ set up by the oxidation of nutrients‚ of protons across the inner mitochondrial membrane to generate ATP from ADP. During oxidative phosphorylation‚ electrons are transferred from electron donors to electron acceptors such as oxygen‚ in
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Stress and Stress Management in the Workplace The purposes of this paper it to examine Stress and Stress Management in the workplace and to propose possible methods in preventing‚ reducing and coping with such stressors. It will also cover the motivating performance through job design. It is experienced that well designed jobs can have a positive impact on both employee satisfaction and the quality of performance. There are several methods and techniques that can be offered by the employer
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Stress is something that has become prevalent in our society‚ more so now than ever before. Demands from everyday life have certainly increased‚ creating more stress in our lives and potentially affecting our health and wellbeing. The purpose of this essay is to discuss stress and the effects it can have on our behavioural responses. Firstly‚ it will give an overview of stress‚ as well as discuss physical and mental concerns bought about by excessive stress and factors that contribute towards it
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In the present day‚ stress is widely recognized as a major problem for many employees in their daily life. According to Lawrence（2010）：The Health and Safety Executive (HSE) have defined stress as the adverse reaction people have to excessive pressure or other types of demand placed on them at work. This definition suggests that when people experience excessive stress‚ there is a high risk. And this phenomenon also contributes to some bad consequences‚ such as mental illness，heart and circulatory
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Stress has many interpretations and carries a negative connotation for most people. Over the years‚ stress has been indentified in different ways. It was conceived of as pressure from the environment‚ then as strain within the person. Today‚ stress can be known as the interaction between the situation and the person. It is the psychological and physical state that results when the resources of the person are not sufficient to cope with the demands and the pressure of the situation. Stress can undermine
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e S t u de n t Many people experience stress as they combine busy lives and the demands of study and or work while trying to also save time for friends and family. For some people‚ stress becomes almost a way of life. We all experience episodic stress – getting ready for a major exam‚ completing an important paper‚ perhaps getting ready for an important interview. However‚ a continuous “state” of stress should not become a way of life. We know that stress – over a prolonged period of time – can
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CHAPTER 1 STRESS INTRODUCTION Stress is a common thing in everyone’s life. It is always associated with the happiest movement of life or the dangerous movement of life. Stress‚ stress‚ stress….. Is a common and universal phenomenon for everyone? Stress accumulation is a common problem and you are very difficult to manage it due to your lifestyle and attitude. In most of time‚ the term ‘Stress’ use to express their negative experience that happened in everyone’s life. It either distress
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