Nitrogen Essays - Industrial Gases, Nitrogen, Pnictogen, Free Essays

Nitrogen Essays - Industrial Gases, Nitrogen, Pnictogen, Free Essays Nitrogen Nitrogen, symbol N, gaseous element that makes up the largest portion of the earth's atmosphere. The atomic number of nitrogen is 7. Nitrogen is in group 15 (or Va) of the periodic table. Nitrogen was discovered by the British physician Daniel Rutherford in 1772 and recognized as an elemental gas by the French chemist, Antoine Laurent Lavoiser about 1776. Nitrogen is a colorless, odorless tasteless, nontoxic gas. It can be condensed into a colorless liquid, which can be compressed into a colorless, crystalline solid. Nitrogen exists in two natural forms, and four radioactive forms (artificial). Nitrogen melts at -210.01 degrees C, (-349.02 F), boils at -195.79 C (320.42 F), and has a density of 1.251 g/liter at 0 C (32 F) and 1 atmosphere pressure. The atomic weight of nitrogen is 14.007. Nitrogen is obtained from the atmosphere by passing air over heated copper of iron. The oxygen is removed from the air, leaving nitrogen mixed with inert gases. Pure nitrogen is obtained by fractional distillation of liquid air; because liquid nitrogen has a lower boiling point than liquid oxygen, the nitrogen distills of first an can be collected. Nitrogen compresses about 4/5ths by volume of the atmosphere. Nitrogen is inert and serves as a diluent for oxygen in burning and respiration processes. It is an important element in plant nutrition; certain bacteria in the soil convert atmospheric nitrogen into a form, such as nitrate, that can be absorbed by plants, a process called nitrogen fixation. Nitrogen in the form of protein is an important constituent of animal tissue. The element occurs in the combined state in minerals, of which saltpeter (KNO ) and Chile saltpeter (NaNO ) are commercially important products. Nitrogen combines with other elements only at very high temperatures of pressures. It is converted to an active form by passing through an electronic discharge at low pressure. The nitrogen so produced is very active, combining with alkali metals to form azides; with the vapor of zinc, mercury cadmium, and arsenic to form nitrides; and with many hydrocarbons to form hydrocyanic acid and cyanides, also known as nitriles. Activated nitrogen returns to ordinary nitrogen in about one minute. In the combined state nitrogen takes part in many reactions; it forms so many compounds that a systematic scheme of compounds containing nitrogen in place of oxygen was created by the American chemist Edward Franklin. In compounds nitrogen exists in all the valence states between -3 and +5. Ammonia, hydrazine, and hydroxylamine represent compounds in which the valence of nitrogen is -3, -2, and -1, respectively. Oxides of nitrogen represent nitrogen in all the positive valence states. Most of the nitrogen used in the chemical industry is obtained by the fractional distillation of liquid air. It is then used to synthesize ammonia. From ammonia produced in this manner, a wide variety of important chemical products are prepared, including fertilizers, nitric acid, urea, hydrazine, and amines. In addition, an ammonia compound is used in the preparation of nitrous oxide (N 0) a colorless gas popularly known as laughing gas. Mixed with oxygen, nitrous oxide is used as an anesthetic for some types of surgery. Used as a coolant, liquid nitrogen has found widespread application in the field of cryogenics. With the recent advent of ceramic materials that become superconductive at the boiling point of nitrogen, the use of nitrogen as a coolant is increasing. In conclusion, it seems as if Nitrogen is very helpful in the modern world. It is used in dentists office's to using it for industrial applications. Without this element the world would be a little different in some fields.

How to handle overly aggressive people at work

How to handle overly aggressive people at work Competition at work isn’t the worst thing in the world- an atmosphere where everyone strives for success can encourage personal and professional growth and make a company thrive. But when the motivation to excel gets out of hand, people can go from competitive to aggressive and alienate coworkers who are just trying to come in, do a good job, and get along with everyone. If you have a particularly aggressive or competitive coworker, here are a few strategies for neutralizing their intensity.Stand up for yourself.If your competitive coworker does something particularly egregious- like taking sole credit for a group effort or stealing choice projects out from under you- consider going to your boss or to HR and explaining the situation. You don’t want to do this often, or too early, or with weak evidence. But if the situation has escalated such that your reputation and opportunities are taking a hit? Make sure you cover your own back- in a calm and professional manner, of course.Build and keep relationships.Sometimes, aggressive coworkers aren’t content simply to talk over you in meetings and undercut you in professional setting- they’ll try to ice you out socially, as well. Your job is to rise above and be the best colleague and officemate you can be. Cultivate real relationships among your colleagues. Gain respect as a well-regarded and valuable team player. Rise above negativity. Help people out. Deliver and be true to your word. Whatever you do, don’t isolate yourself because you’re avoiding this one person- that’s what he or she wants.Stay focused on doing your job well.Keep your eyes on your own work and making it as stellar as possible. Don’t succumb to playing the competition game- you’ll never â€Å"win† against a particularly competitive colleague, and there is no battle anyway.  Compete only against yourself- do great work that people can depend on and aim to continually improve.Dou ble check your read of the situation.If you’re always getting crazy toxic competition vibes from this person, make sure that maybe you haven’t misread or misunderstood the situation. If reaching out to this coworker for a private one-on-one over a cup of coffee is an option, give it a shot. Talk about how you don’t want to compete or diminish their accomplishments, and let them know you’re not trying to one-up them. Maybe it’s all a misunderstanding. Before you make an enemy of a coworker- even in your head- make sure they’re truly adversarial and not just awkward.Take a look around.Maybe you’ve entered a culture of aggression. Is it really just that one person who’s making you feel uneasy, or is your work atmosphere highly competitive as a whole? If you assess the situation and notice that the majority of your coworkers are just as cutthroat, then the problem might be the job. If you can accept and deal with it, great. If not, you might want to consider working for a different company where there’s more of a collaborative culture.

Accounting Theory - Comparison between Positive and Normative Approach Essay

Accounting Theory - Comparison between Positive and Normative Approach - Essay Example The study of accounting theory enables to understand our past and provide us with a positive reception of how our recent practices and problems came into being. A historical investigation also tells that certain problems are continuing and may not be capable of an everlasting solution, for example, accounting for intangible and changing price levels. The accounting theory’s development came up because of needs and changes in accounting concepts and techniques. The main purpose of accounting is to plan periodic matching of revenues and cost. The accounting theory is classified into positive and normative accounting theory. This paper will take into consideration the positive and negative approach of accounting theories; their advantages and disadvantages, comparison and relationships between the two and evidence supporting that where each of the approaches might be appropriate in the current economic and business environment. Positive Approach The positive approach in accountin g starts with observations of financial information of business firms and on the basis of recurring relationships proceeds to draw overview and principles of accounting. Financial and accounting information, hence, represents recurring relationships leads to the formulation of principles. Different steps involved in positive accounting theory are: doing the observations and then recording of all the observations, analysis and then doing classification of these observations in order to detect recurring relationships, inductive derivation of principles of accounting and generalizations from those observations which signify recurring relationships and last step is the testing of generalizations (Rao, 2006, p.57). This approach is appropriate in the business environment in order to explain and forecast management’s choice of standards through analysing the benefits and costs of particular financial exposures in relation to allocation of resources and to various individuals within the economy. This theory is based on the propositions that shareholders, managers, and politicians or regulators are rational and that they try to make the best use of their utility, which is related to their reward and therefore to their wealth. The preference of an accounting policy by any of these groups depends on a comparison of the relative benefits and costs of different accounting procedures in such a way so as to maximize their utility. For example, it will be appropriate in such a business environment where it is assumed that management takes into consideration the effects of the reported accounting of numbers on political cost, information production cost, tax regulation, management compensation, and constraints found in bond-indenture provisions. The fundamental idea of the positive theory is to develop hypotheses about factors that persuade the accounting practices and to test the legality of these hypotheses empirically.     

Gone with the wind Essay Example | Topics and Well Written Essays - 1000 words

Gone with the wind - Essay Example It stood out to be as the best and the most popular film in the year, 1939. The huge cast of the film was highly embraced by the audience. The people enjoyed each and everything related to the film, also including the depiction of African Americans in it. It became as one of the highest rating film in the history of America. ‘Scarlett O'Hara’ was the character which remained highly focused in the eyes of the audience. This role was immensely played by the well-known beautiful actress, ‘Vivien Leigh’. Scarlett is the strong leading character in the film. The whole story of the film revolved around the incredible life of Scarlett. On the basis of the character, Vivien Leigh stood out to be best suitable woman for the film. She tremendously put the best of herself to portray the character of ‘Scarlett O'Hara’, and to make this film as successful as the novel. Her performance in the film is so extraordinary that it brings me no surprise that she has won the ‘Best Actress Award’ for this film. Vivian was successful to become the lifetime heroine of Margaret Mitchells. I have read this novel more than five times, and while reading the novel I used to wonder who can perfectly portray the Scarlett O’Hara? Because the character of Scarlett is put as too s trong, wild, bold, brave, confident, stubborn, somewhere proud, egoistic, shameless, intense in love matter, courageous, devoted, confusing, revenge taking, selfish, dignified, and determined towards goals. Vivian’s performance in the film has covered every inch details according to the demand of the role. The way she raised and out herself against every shot of the film, is truly applauding. I watched the film two times just to watch the legendary performance of Vivian Leigh. I really admired and adored the way she delivered her dialogues, either it was the expression of happiness, sadness, grief, aggressive, lust, bold, romantic, weeping, enthusiastic or fighting. Every dialogue threw by Vivian  Leigh perfectly matched the genre and demand of the scene.  

What is Mark Lawsons attitude towards the television programme Essay Example for Free

What is Mark Lawsons attitude towards the television programme Essay Mark Lawsons article for the Guardian Newspaper The 1940s House gives information to the readers about a television programme yet to be screened. He gives his personal and judgemental opinions but his attitude towards it is very positive. The type of language he uses in the article is flattering and persuasive. He describes the programme as fascinating, inspired, unmatched and great, this shows that he found the programme interesting and worth viewing and he would like to encourage others to watch it. Mark Lawson uses emotive language as he explains how the personal suffering that the Hymers experience is genuine. The hunger, pressure, and tensions are all inevitable parts of this experiment but they lead to fanatical behaviour, as Ben becomes Fuel Warden and dishonesty as granny half-inches a slice of cake. Hunger is a real problem with the boys becoming visibly hungry and grannys speech of guilty justification because she considers that she is always last in the food-chain. Mark Lawson suggests that the viewers will experience moral indigestion as they watch the programme: this shows his sympathy and admiration towards the Hymers as they face their daily challenges. Mark Lawson points out in his article that the educational side of the programme is exceptionally good. Many valid and interesting facts are presented softly but this makes the information easy to understand and hard to forget. For example it would be difficult to ignore the fact that many mothers died as a result of falling downs the stairs during a blackout because they wanted to comfort a crying child. He considers the programme to be a virtual experience museum and that it is a very good way of teaching people about history, particularly the young. By watching the Hymers spend nine weeks living in the 1940s we will be able to enjoy an entertaining and educational programme. After reading the article I think that Mark Lawsons attitude towards the programme was one of admiration and praise. He obviously enjoyed watching The 1940s House and this is shown throughout his writing which is informative, entertaining and persuasive and I think would encourage many readers to watch the programme. In this extract from his autobiography, John Walsh recalls his impression of life in Battersea in the 1960s. Explain how Walsh evokes his childhood in the sixties? How effectively does his choice of language convey this period of his life? John Walsh evokes his childhood memories in the 1960s by making comparisons between Battersea, where he was living and Chelsea where he would have liked to have been living. His descriptions of the two areas are in complete contrast and his desire to cross over the river shows his lack of enthusiasm for Battersea and his desire for a better life. In his autobiography he describes Chelsea as a swinging and happening place where he could marvel and be dazzled by the shops. It was where the sixties were taking place with groovy events, shops with wacky names and beautiful people but there was a bridge between him and this wonderful place. He implies that this is not just a physical obstacle, crossing a bridge, but crossing into a completely different way of life and one that he did not fit in with. His opinion of Battersea is completely different he describes it as yobdom, alien, hard, unwelcoming and unhomely. The shops are meagre with their boring names and uninteresting merchandise, and even the air smells disgusting. In my opinion his childhood was not very happy and his idyllic and dreamy impression of Chelsea gave him something to aspire to.

The Play Years Essay -- essays research papers

The Play Years   Ã‚  Ã‚  Ã‚  Ã‚  Early childhood is often characterized by endless make-believe and sociodramatic play which indicates the development of mental representation. Sociodramtic play differs from simple make-believe play in that it involves play with peers. This stage of play is often referred to as the Preoperational Stage. This is the stage immediately after Piaget's Sensorimotor Stage. The Preoperational Stage spans from two to about five or six years of age. At this stage, according to Piaget, children acquire skills in the area of mental imagery, and especially language. They are very self-oriented, and have an egocentric view; that is, preoperational children can use these representational skills only to view the world from their own perspective (http://web.psych.ualberta.ca/~mike/Pearl_Street/Dictionary/contents/P/piaget's_stages.html).   Ã‚  Ã‚  Ã‚  Ã‚  Throughout early childhood, children's preoperational cognitive development is observed. Egocentrism -- being unaware of any perspectives other then their own -- is often seen is children ranging from two to six or seven years. Piaget's three mountain problem illustrates this phenomenon clearly; that is, children who looked at three mountain peaks, designated by different colors, could not pick a picture representing the three peaks from a doll's point of view. Instead, the pictures represented their own point of view.   Ã‚  Ã‚  Ã‚  Ã‚  Conservation problems also are c...

Anthony and Cleopatra

Anthony and Cleopatra| | | Love; what is it? The definition states it as an intense feeling of deep affection, but is that what love really is? When it comes to my love life it has been one that has gone up and down, around every corner, from mars to the moon whatever you can say it has been everywhere. Being heartbroken is one thing I can say that relates to me when it comes to Anthony when referring to the fact that his wife’s death and imminent battle pricks Antony’s sense of duty, and he feels compelled to return to Rome.The reason I say that not that my girlfriend died but I felt I killed her in the relationship when I was younger. Love in communication, trust and belief that you will not get hurt by this person. I did everything you aren’t supposed to do. Cleopatra was pretty much my ex-girlfriend, she hated the fact that I was friends with many girls she was a drama queen who craved my full attention and no matter what I had to give it to her. Shakespeare was the creator of all this, the love, and the lust. People live their lives as it is what Shakespeare wanted Cleopatra learns of Antony’s marriage and flies into a jealous rage.That’s like women in this generation they hear about any girl you are affiliated with they automatically go crazy and get jealous regardless of what is true or not. This generation of people are used to divorce, use to cheating, fighting over stupid arguments. At the end of the day people accept it and just look for attention for example, when a messenger delivers word that Octavia is plain and unimpressive, Cleopatra becomes confident that she will win Antony back. Girls want to believe they are saints and that guys will bow down to their ever will.If there is a girl that their guy is friends with or affiliated with is less attractive than they are they just bash her and say and do what Cleopatra does. My ex-girlfriend was like her she would fight with me, yell at me if I even said hello to a female but right when she found out that she was just another female she was all happy go lucky. This day and age love is not what it used to be it is not based on the fact once you meet someone you will be with them for a long period of time you are with them till you’re tired of them. Shakespeare created what we know today as love.He is the reason we accept people because of their differences and show that we have true love for each other regardless of differences we are willing to do whatever it takes for the people we love. For example look at the twilight movies a vampire falling in love with a human, being fought over from a werewolf. The most absurd story but we as a culture love it because we love seeing people fight for each other’s love regardless of who it is, we urn for that as a culture but we have grown to accept people getting cheated on, lusting over others.Love is a cold thing but it can be beautiful if it is taking seriously and it can fulfill all you r hopes and dreams if you do what it takes. When explaining 3 fats about love you have to think about trust, loyalty and communication. When referring to my ex I did not trust that girl, trust is one thing that without it there is no relationship, and you have to have trust. Cleopatra had no trust in Anthony. The reason I say that is Cleopatra learns of Antony’s marriage and flies into a jealous rage.She did not have faith in him. Trust is one key to have true love. With me and my ex we loved each other, but we did not trust one another we would fight argue about everything and never truly had trust and faith in one another. An example of this is when Caesar dismisses Antony’s request, but he promises Cleopatra a fair hearing if she betrays her lover. How can you have trust in someone if she is willing to go behind your back and do such a thing to you?Trust is one thing that you have to have if you want a true relationship. Cleopatra seems to be giving thought to Caesa r’s message when Antony barges in, curses her for her treachery, that is just getting caught in the act of lying that is not how you have a good relationship. Another fact that needs to be taking into content when it comes to love is communication, with me and my ex we did not communicate. Our communication was literally not there at all we only talked when it was convenient for her.She did not put her best foot forward when it came to talking to one another it was never her wanting to actually to talk to me but instead just doing it because she had to. When it regards to the play Anthony and Cleopatra did not have great communication, she was pretty much a side chick in Anthony’s life. They had everyone do the he said she said life. For instance when she found out about Antony will marry Caesar’s sister, Octavia. She gets it from a messenger that delivers the word that Octavia is plain and unimpressive. She automatically gets jealous and doesn’t know tha t e is only doing it to solidify their loyalty to one another in the Caesar and Antony making an alliance with one another. She needs to be informed of this; they have to talk to one another. Me and my ex did not talk we fought when we talked there was no communication. Cleopatra thought that Antony was cheating on her when he was just making an alliance. Communication is key in love. Finally loyalty it is to me one of the big things you have to have when you’re in a obligation Antony thought he had Caesar’s loyalty when they made an agreement.He thought wrong Caesar breaks his truce, wages war against Pompey, and defeats him. How can you have believed anyone or trust anyone without true loyalty? This is how love in our day an age has fallen people don’t communicate, don’t trust anyone because people are not loyal anymore. Like I said before we live in a day and age where it is ok to cheat, and not be loyal to someone who you committed to. This day love i s lost, it is a distant memory, but when people are happy, loyal, communicate, and trust one another love will prosper.Love can never die it may be lost but when you find that special someone who you see and brightens your day when you see them. That is what love is, when no one else matters besides that person when you are with that person. Antony let power take control of him and Cleopatra let her trust issues and lust take control of her. Loves is a beautiful thing and every time Shakespeare writes a story about love he portrays what happens when you mess up. Love is a beautiful and when you get it you should never let go.