Investigating the Water Potential of a Potato. I have been asked to investigate the water potential of a potato. During my investigation I will not actually be able to measure a value for‚ as it is a pressure value (kPa). Osmosis is a special form of diffusion involving only water molecules. It is defined as "The passage of water from a region of high water potential to a region of low water potential through a partially permeable membrane" Definition of Water Potential. The potential for water to move
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Social Networking Dangers When was the last time you checked Facebook? Have you tweeted anything today? Research has found that 72% of online adults use social networking sites. Think about it. That’s almost three-fourths of all Internet users. Social networking can range from posting photos on Facebook to tweeting a little daily thought on Twitter. Social networks were originally created to stay in touch with people not often seen or to reconnect with old friends. Despite the fact that some
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oxidation-reduction reactions. The first part of the experiment measures the standard electrode potentials of five various half cells against the Cu2+(1M)|Cu half cell. The last three half cells are prepared through electrolysis. The electrode potentials of all reactions are positive which means that they are spontaneous. There is a significant percent difference from the theoretical and the experimental standard electrode potentials. The sources of error are incorrect solution preparation and contaminated materials
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The Dangers of the Cyberworld Social media sites allow people to be connected with friends and family‚ share photos‚ and exchange ideas. Social networking is very useful‚ but it can be a dangerous place for children if they are not careful. “During the last five years‚ the number of pre-adolescents and adolescents using such sites has increased dramatically” (Pearson). Parents should monitor their child’s social networking sites to keep them safe online. Social network public spaces are unpredictable
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Action potential to occur in a neuron. This will be achieved by firstly‚ defining the purpose of neurons in the body along with a description of the components within a neuron and how they enable information to be passed through the cell membrane and on to other neurons. Secondly‚ the resting potential of a neuron will be explored with relation to the concept of selective permeability and the purpose of the Sodium - Potassium pump. Thirdly‚ the molecular basis of the Action Potential will be
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In 1957‚ Dr. William Coda Martin tried to answer the question: When is a food a food and when is it a poison? His working definition of "poison" was: "Medically: Any substance applied to the body‚ ingested or developed within the body‚ which causes or may cause disease. Physically: Any substance which inhibits the activity of a catalyst which is a minor substance‚ chemical or enzyme that activates a reaction."1 The dictionary gives an even broader definition for "poison": "to exert a harmful influence
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“Amazon.com will sell its fixed assets to focus on managing its brand‚ becoming the ‘Coca-Cola’ of the web” (Jeff Bezos‚ CEO‚ Amamzon.com). a. Does every company need to ‘brand’ itself and its products as these quotes above suggest? b. What added ‘dangers’/advantages are brought about by branding in a global marketplace? Supplement your answer with examples where possible. Brands have existed since forever. In a time before fences were used in ranching to keep one’s cattle separate from other people’s
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Alcohol and Driving Imagine being in a bar with a few of your good friends. Everyone is drinking and having a good time. Your are going to leave and go home‚ but you friends won’t let you because they know the dangers of driving after having a few drinks. Instead they ca ll a cab to give you a ride home. You would be extremely lucky to have such smart friends. Drunk driving is a very serious problem in our society today‚ but it is becomming socially unacceptable causing the numbers of alcohol
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Program Proposal: A seminar and workshop entitled “The danger of Medication error due to understaffed nurses.” BACKGROUND OF THE PROBLEM The nursing profession has traditionally accepted responsibility to assure that safe and accessible health care is available to the public at all times‚ including times when nurses are in short supply. The profession continues to accept such responsibility and also recognizes the need to identify strategies to promote the availability
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Oksana Leonova ESL 097 November ‚ 2012 Danger of Virtual Reality In recent years‚ the development of information technology has created technical and psychological phenomena‚ which opened to a new quality of human perception and experience as well as has opened a new world - the world of "virtual reality" or "imaginary world of reality". “The term ‘artificial reality’‚ coined by Myron Krueger‚ has been in use since the 1970s; however
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