Aim/Objective To compare the concentration of reducing sugars in three different types of canned soft-drinks available in the school canteen. Background information: Reducing sugars are any sugars that in basic solution forms some aldehyde or ketone. This allows the sugar to act as a reducing agent‚ for example in Benedict’s reaction. [1]Reducing sugars include glucose‚ fructose‚ glyceraldehyde‚ lactose‚ arabinose and maltose. All monosaccharides which contain ketone groups are known as ketoses
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activity in relation to these websites might become difficult. Other disadvantages are represented by the viruses that may harm the performance of the device connected to the internet or even exploit security vulnerabilities to spread automatically to other computers through networks. Among the negative aspects‚ the possibility of becoming a victim of online fraud should also be mentioned. Even if there are many disadvantages to consider‚ the internet is still a necessary evil. It helps mass communication
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efficiency and organised‚ so your boss is glad. What is more computers are being increasingly used in medicine. They are very helpful in medical diagnosis‚ patient monitoring and general hospital administration. On the other hand using computers has several disadvantages. They are very bad for health. For example screens destroy eyes even with a low radiation screen. Many people complain for that issue‚ because then they have to pay for oculists and wear glasses. Also there are a lot of viruses which
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makes us easier to communicate with each other. Until September 2011‚ Skype has 663 million registered users around the world. I.2 Problem 1. What is Skype and what are its features? 2. How to operate Skype? 3. What are the advantages and disadvantages of using Skype? I.3 Purposes The purposes of
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instance‚ you want to buy some goods online‚ you have to provide some of your information to the website so that they can deliver them to you. Maybe your information is hacked and the hackers can use it for much bad purpose like buying other things using your account...Your e-mail box can receive some spam that you don’t want and you feel unsafe when you think that a person is following you in some ways. Furthermore‚ although we can use the Internet as a means of entertainment with a lot of interesting
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A computer is a general purpose device that can be programmed to carry out a set of arithmetic or logical operations. There are many types of computers that we are using now like personal computers (desktop)‚ mobile computers and mobile devices‚ game consoles‚ servers‚ mainframes‚ supercomputers‚ and embedded computers [1]. Since a sequence of operations can be readily changed‚ the computer can solve more than one kind of problem[2]. Every day‚ people around the world rely on different kinds of computers
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more convenient seems to be practical. Nevertheless‚ it makes the assumption that people are over-dependable on them. As I shall argue‚ this not the whole picture‚ and there are some negative effects that cars bring to us. Both the pros and cons of using cars will be discussed in this essay. First of all‚ I firmly believe that natural environment and people’s health are being threatened by cars. For example‚ increasing numbers of cars is the reason why there is an increased demand for the petroleum
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Recently‚ a small group consisting of three Breckenridge nursing students researched the education levels of a registered nurse. The title registered nurse is held in high regards respectively. Each nurse and perspective nurse is an individual and has a different home life from one another. Some of them may have to work a full time job to keep a roof over their head. Others may work part time or enough to keep their license active. All of those factors determine the individual’s level of education
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Trial & Error vs. God Complex The efforts of Dr. Archie Cochrane‚ in finding treatment for the prisoners by isolating vitamin D or identifying home as the suitable place for treatment of heart patients‚ are good examples of success of trial & error method. Incidentally‚ almost all the inventions and discoveries have come either through trial & errors or out of serendipity. The God Complex‚ as it turns out from Tim Harford’s video‚ is a belief of the role-holder that he or she fully
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Advantages and disadvantages of using mobile phones In this modern society‚ mobile phones have become part of one’s life. The mobile phone is a marvelous invention. It contributed a lot in connecting people from every corner of the world. The mobile phone is just a small device which can call people any time anywhere‚ it is very convenient towards people. From the customer’s point of view‚ it is obvious that mobile phones assist you in business a lot‚ such as‚ make schedule of working‚ surf the
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