The formation of an action potential can be divided into five steps. (1) A stimulus from a sensory cell or another neuron causes the target cell to depolarize toward the threshold potential. (2) If the threshold of excitation is reached‚ all Na+ channels open and the membrane depolarizes. (3) At the peak action potential‚ K+ channels open and K+ begins to leave the cell. At the same time‚ Na+ channels close. (4) The membrane becomes hyperpolarized as K+ ions continue to leave the cell. The
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Strike action A strike is a collective withdrawal of labour by employees. Under such action‚ employees refuse to perform all work‚ not just selected duties. Strikes are usually‚ but not always‚ organised by a union. The purpose of a strike is to pressure an employer (or other third party) into complying with particular demands or refraining from doing something. Under the federal Fair Work Act 2009 strike action may be ’protected action’ if undertaken during a bargaining period for an enterprise
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Reflection on action Introduction Reflection now a days is very important in health practises as it allows the practitioners to gain understandings from their professional and personal experiences .It has proven to be an essential utensil for development in their area. Reflection is seen as an influential resource of seeing accustomed events as fresh and inspiring. It is a way for critical thinking and learning. Thinkers have warned of the dangers of a life spent without reflection‚ but what creates
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anaerobic bacteria and protozoa. Fig. 2.2 Chemical Formula of Metronidazole 3. Cefuroxime 750 mg IV Fig. 3.1 Cefuroxime (Cethixim) 750 mg Cefuroxime is indicated in the parenteral treatment of the following infections caused by cefuroxime sensitive pathogens. All cephalosporins (β-lactam antibiotics) inhibit cell wall production and are selective inhibitors of peptidoglycan synthesis. The initial step in drug action consists of binding of the drug to cell receptors‚ called Penicillin-Binding
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Action Potentials An action potential is the change in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell. An action potential occurs when a neuron sends information down an axon‚ away from the cell body. A threshold is the minimum amount of stimulation needed to start a neural impulse (you know‚ the electrical impulses that travel throughout your body carrying important information). Action potentials generated by neural impulses are
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1. Describe‚ the action of Barbiturates. They reduce sensory sensitivity to pleasure or pain. Replace’s the need for sex‚ food and emotional involvement. 2. Describe the action of benzodiazepines and their withdrawal symptoms. Benzodiazepines are minor tranquilizers; they cause dopamine levels to surge producing a pleasurable sensation. Withdrawal involves seizures‚ convulsions‚ and even death. 3. What is the biggest danger with
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CAREER ACTION PLAN Although you may be working from a tentative career choice‚ use that career choice or for those of you who have made a career decision use that career decision to develop an action plan. You can always change your mind‚ if you need to‚ and use this same process for a different career path. The purpose of this section is mapping out a plan of action. Having a plan of action leads to the greatest likelihood of helping you move from the reality of the present to the ideas
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LIGHTING ACTION PART ONE The Incident In June 2008‚ SYARIKAT GETAH BAGUS SDN BHD faced a series of actions by its employees who are members of the National Union of Employees of Rubber Goods (NUERG). The Tyre Division of the Company was plagued by increasing absenteeism‚ malingering and production delays on the part of the tyre operators. The Production Manager‚ Mr. John Ho‚ alarmed over the deteriorating state of production performance had expressed concern at a recent company conference
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Computer Enzyme Action: Testing Catalase Activity 6A H2O2 is toxic to most living organisms. Many organisms are capable of enzymatically destroying the H2O2 before it can do much damage. H2O2 can be converted to oxygen and water‚ as follows: 2 H2O2 → 2 H2O + O2 Although this reaction occurs spontaneously‚ enzymes increase the rate considerably. At least two different enzymes are known to catalyze this reaction: catalase‚ found in animals and protists‚ and peroxidase‚ found in plants. A great
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Affirmative action The term affirmative action was first used by President John F. Kennedy. During the 1960’s civil rights movement‚ President John F. Kennedy signed executive order 10925. This executive order was meant to ensure that federal contractors did not discriminate in their hiring practices but “"take affirmative action to ensure" equal opportunity. The civil rights era also worked to repel against the sexism against women‚ when in 1967 President Lyndon Johnson amended the order to include
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