The Relationship Between Mediterranean Diet and Body Composition in Exercising Women - Free Essay Example

Sample details Pages: 1 Words: 271 Downloads: 2 Date added: 2019/02/15 Category Health Essay Level High school Topics: Diet Essay Did you like this example? Previous studies reveal that diet and exercise show a decrease of weight, body fat, fat mass, and other factors that add into one’s healthy body composition. Sedentary individuals with unhealthy eating habits have an increased risk of life-threatening diseases. Increasing amounts of body fat is destructive to an individual’s well-being. This secondary research study was conducted in order to determine the relationship between the Mediterranean Diet (MD) and body fat and fat mass. If a diet abundance in whole carbohydrates and low amounts of healthy fats lowered the volunteer women’s body fat or fat mass over a 12 week period of time, it would combat the risk of detrimental diseases caused by an overabundance of adipose tissue. Twenty-four women (N=24; age 23.83.7; weight 71.911.9) were analyzed in this experimental group bivariate correlation while completing 12 weeks of High Intensity Interval Training (HIIT) and MD. HIIT consisted of women who were randomly assigned to an intervention group completed 20 minutes of exercise (8-second sprint, 12-second recovery) on a manual cycle ergometer, 828E (Monark, Sweden), three times a week for 12 weeks. Participants’ Mediterranean eating habits were analyzed using dietary analysis software (Foodworks 2007, version 5.00; Xyris Software), based on their 3-day diet diary following 12 weeks of HIIT and MD. To gauge adherence to the MD, the researchers used a Mediterranean Diet Score (MDS) that provided adherence scores of 0-9 (0 being not adherent, and 9 being optimal/total adherence). A Dual-energy x-ray absorptiometry (DEXA) was used to determine pre and post-intervention levels of body fat and fat mass; tests were completed by a professional technician blinded to the two different groups. A Pearson Correlation test (SPSS v. 25 P-value of Don’t waste time! Our writers will create an original "The Relationship Between Mediterranean Diet and Body Composition in Exercising Women" essay for you Create order

William Shakespeare s Macbeth - 867 Words

Can one of the most influential plays in mankind s history be revolved around one object? Does Shakespeare s most terrific play Macbeth be all surrounded in encompass by a single dagger? This may not be the case, but the dagger does change the play in a dramatic way. This is one of the most symbolic objects in all of Shakespeare s writing and maybe one of the biggest turning points in any of this place. MacBeth s dagger symbolizes his ambition for power and it s an apparition. This ambition is his most coveted asset and his tragic flaw. This dagger or otherwise known as the bloody dagger foreshadows the murder of Duncan which is one of the main turning points/plot in this play. Initially the bloody dagger is leading to the shadowing of what must be done by MacBeth. This is where you start to see MacBeth s true goals and envision shine. If you want to achieve something you stop at nothing to achieve it and this is exactly what MacBeth dead. He wanted to obtain power and the only way h e could do that was by taking alive. He was influenced by others, such as lady Macbeth, but no one else made them do it but him. This and company encompasses his character and is a great object to show MacBeth as his true self. This ambition does not stop after the assassination of Duncan, but continues into his reign as a leader throughout his time. You never see his morals change or guilt set in enough for him to really remorse about taking alive. The dagger follows him throughoutShow MoreRelatedWilliam Shakespeare s Macbeth 1363 Words   |  6 PagesMacbeth is without a doubt one of the most captivating plays, in my opinion written by William Shakespeare. Throughout this play there is definitely a numerous amount of things that can catch your attention, whether it is a trio of witches appearing, committing murder, or keeping secrets. However, what really catches my attention is the way Shakespeare uses language and unique style to create a distinct mood, and reveal charactersâ €™ inner thoughts. In the play Macbeth written by William ShakespeareRead MoreWilliam Shakespeare s Macbeth 884 Words   |  4 PagesMacbeth Summary - Act 5 Scenes 1 - 9 Written by Josh, Corey, Sinead, Phoebe and Mason Phoebe Scene 1: So the first scene begins with a physician overseeing Lady Macbeth sleepwalking and muttering to herself while rubbing her hands, trying to remove the imaginary blood. ‘Here’s the smell of the blood still: all the perfumes of Arabia will not sweeten this little hand.’ (Act 5 Scene 1 Lines 11-12) This line is important as it represents Lady Macbeth at war with herself and shows she will never moveRead MoreWilliam Shakespeare s Macbeth 1652 Words   |  7 PagesMacbeth is one of William Shakespeare s most famous tragedies, it is believed to have been written and first performed in 1606. Sources indicate that the play was written to appease King James I, who had ascended to the throne after Queen Elizabeth I. The play tells a tale of a brave Scottish Thane named Macbeth, whose thirst for power brought him to murder Duncan, the King of Scotland, only to become a tyrant, and have his actions lead to his eventual demise as the tragic hero. Throughout the playRead More William Shakespeare s Macbeth 1289 Words   |  6 Pages 2015 Macbeth Literary Essay In this 16th century, classic play about a man hungry for power by William Shakespeare there are many intense instances of symbolism used to demonstrate and prove Macbeth’s feelings and behaviour throughout the book. Good symbolism makes you feel what the character feels when reading a story. In the story, â€Å"Macbeth†, Macbeth is shown to be a sly and deceiving person who betrayed his kingdom for his own gain. Three important symbols used to show Macbeth s greed andRead MoreWilliam Shakespeare s Macbeth 1129 Words   |  5 PagesWindsor 02/10/16 Macbeth William Shakespeare wrote one of best tragedies in english literature, which was titled Macbeth. The tragedy, as it is considered by critics of yesterday s literary world, frown upon the evil dimension of conflict, offering a dark and atmosphere of a world dominated by the powers of darkness. Macbeth, more so than any of Shakespeare s other tragic protagonists, has to face the powers and decide: should he give in or should he resist? Macbeth understands theRead MoreWilliam Shakespeare s Macbeth 1909 Words   |  8 PagesKing James’ court, none more so than William Shakespeare, who was writing some of his best plays in that time. The most well known of Shakespeare’s plays produced in the Jacobean Era was Macbeth. Macbeth tells the tale of Macbeth, a thane of Scotland, and his descent to madness. One of the characters of this play, Banquo, was also a prominent lord in Scotland, a lord King James believed he was descended from. It seems evident in that in t he play, Shakespeare used his portrayal of Banquo to flatterRead MoreWilliam Shakespeare s Macbeth Essay1406 Words   |  6 PagesMacbeth Essay Since the beginning of time people looked up to the stars asking Gods their fate. Fate is a belief, that there is a set path for an event that is both unavoidable and inevitable, that there is a fixed natural order to the cosmos. In the play Macbeth by William Shakespeare, viewers can observe fate or (prophecy) playing a major role. William Shakespeare was born April 1564 and died May 1616, during his life Shakespeare wrote 37 plays, and 157 sonnets, Shakespeare is also knownRead MoreWilliam Shakespeare s Macbeth Draft1040 Words   |  5 PagesStuart Wodzro Honours English 9, Block 2 Shakespeare Essay February 26, 2016 MacBeth Draft No. 3 The strive for power is a human impulse, perhaps even a primitive compulsion. And, in the case of human beings at least, the impulse is not restricted solely to the necessities of life. Beings are devoted to gaining raw power itself and, through it, they loses themselves. As one may know, the lust for power is a mode of selfishness, where at one attempts to gratify every passion, but alas pleonexiaRead MoreAnalysis Of William Shakespeare s Macbeth 1887 Words   |  8 Pagesdisaster. â€Å"Macbeth’’ is a tragedy written by William Shakespeare and is considered one of his darkest and most powerful works. William Shakespeare was born in Stratford -upon -avon, in Warwickshire and was baptized a few days later on 26 April 1566. William Shakespeare was educated at the local King Edward grammar school Stratford and is considered by many to be the greatest playwright of all time.(Bio.) In Macbeth, William Shakespeare used ambition to show us Lady Macbeth and Macbeth and t heirRead MoreWilliam Shakespeare s Macbeth Essay1827 Words   |  8 PagesEnglish IV DE/AP 24 January 2016 Macbeth Research Paper Although William Shakespeare is not historically accurate with his play Macbeth, there are many possible reasons as to why his historical interpretation differs from reality. He may have wished to flatter the king and, when taken into historical context, may have wished to warn others of the fate handed to those who would oppose the king. Although there are many differences between the play and history, Shakespeare remains truthful in some aspects

Personal Reflection on the Self Paper free essay sample

Personal Reflection on the Self Paper In order to examine the concept of the self an individual must know what it is. The concept of self is defined as to be aware of oneself is to have a concept of oneself. The self concept is how we think about and evaluates ourselves. Also the expression self-concept is a general term used to refer to how someone thinks about or perceives them. Did you know that concept of the self actually reaches both into the past and into the future, as we know who we were and who we are? Included in this picture are all the memories, fears, goals and possibilities that remain in our minds. For example, a concept of self from our early life might involve how we looked physically and how we associated with friends and playmates. What we remember of this is part of our personal concept. We will write a custom essay sample on Personal Reflection on the Self Paper or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Level One Heading Replace the level one heading with the words for your heading. The heading must be in bold font. Level Two Heading Replace the level two heading with the words for your heading. The heading must be in bold font. Level three heading. Replace the level three heading with the words for your heading. The heading must be in bold font. Conclusion In the present, our concept might also involve how we work, what success we achieve and, most importantly, if those things are important to whom we think we are. Studies of personality and behavior have shown that as we grow older, our concept of self becomes more abstract and more idea oriented. We begin to make connections between social ideas and political issues, for instance, and judge ourselves on how we fit with these. Deciding if this is good or bad can be part of the self concept, because how we judge our place is part of self. On the other hand, whether our actions or associations are good or bad is a judgment by society. Self concept is distinct from self esteem, and may be more akin to self worth. Esteem means that we think something is important or has a particular value. While this idea can be a small part of our concept of self, they are not necessarily one and the same. In short, self concept is a lifelong and often complex view of the person we are. References This is a hanging indent. To keep the hanging indent format, simply delete this line of text using the backspace key, and replace the information with your reference entry.

What Is A Role Model Essay Example For Students

What Is A Role Model Essay Role ModelsIntroductionToday, sport stars and other athletes are looked up to by all ages. Everyone loves them. They appear on television, there as fame as film stars, and do this with the entire world watching. No wonder we make heroes out of our favorites. They are seen, as heroes because they can do things that most of us cant. But if you examine athletes while theyre not on the court or on the field, you can see what they are like in every dimension. Athletes have many positive and negative sides that affect their public face and both benefit and harm their abilities to become role models and they encourage there fans to become like them rather positive or negative. We will write a custom essay on What Is A Role Model specifically for you for only $16.38 $13.9/page Order now What Role Models areToday, athletes are known for wealth, privilege, and fame, because of their talent, salary, and positions as leaders, its inevitable that we admire them. We can learn quite a lot from role models like determination and confidence because we try to be like them, you have to love a sport in order to do it well. When we look at athletes, normally you would say that they do everything good and positive, thats how they are when they are on TV or something, but real life do as much bad as they do good. In the news all the time, we hear about people like Stan Collymore or Roy Keane had a fight or something, it will not only affect there reputation but it will make children or even adults that look up to them behave like them. Positive and Negative Role ModelsRole Models could give a good impression to someone and make their parents or someone proud but they could also give people bad impressions like taking drugs or having lots of alcohol. I have made a table below of a list of role models that give good impressions and the ones who give bad impressions. Positive Impression Negative ImpressionThorpe MaradonaRonaldo Hidetoshi NakataGary Liniker Paul MersonTony Adams Eric CantonaCasiraghi Stan CollymoreJohn FashinuBruce GobblarZidaneRomarioWell your probably thinking why these people are positive or negative role models, so heres a brief explanation what I think they are positive or negative. Positive ImpressionsThorpe, because it he won all medals that he was in for swimming, he was a good athlete to look up to. Casiraghi, I say that he is a good role model, because is still injured and still gets paid, plays for Chelsea but loves to play football so he wants to leave the club and join any team even lower divisions. Gary Liniker, he was one of Englands best footballers and as far as we know he hasnt done anything bad in his life. Tony Adams, an Arsenal defender, you would probably think he is a bad impression because he use to drink a lot, but I say he is a good impression because he stopped drinking for the sake of his health, career and sport. Negative ImpressionsMaradona, he is known as one of the worlds greatest footballers of all time, but he gives a really bad impression because people tend to copy who they look up to and Maradona takes a lot of drugs and cheated in football, using his hands instead of head. Hidetoshi Nakata, Japans first player to play abroad and Japans best player was not really a good impression because in the World Cup he wasnt really bothered to sing his own National Anthem and in Copa America Japan was invited but he rejected the International Callup. .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 , .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 .postImageUrl , .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 .centered-text-area { min-height: 80px; position: relative; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 , .u40c2a88cfbe4d0fe80b5e7b6e0706bb3:hover , .u40c2a88cfbe4d0fe80b5e7b6e0706bb3:visited , .u40c2a88cfbe4d0fe80b5e7b6e0706bb3:active { border:0!important; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 .clearfix:after { content: ""; display: table; clear: both; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3:active , .u40c2a88cfbe4d0fe80b5e7b6e0706bb3:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 .centered-text-area { width: 100%; position: relative ; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3:hover .ctaButton { background-color: #34495E!important; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3 .u40c2a88cfbe4d0fe80b5e7b6e0706bb3-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u40c2a88cfbe4d0fe80b5e7b6e0706bb3:after { content: ""; display: block; clear: both; } READ: Of Mice ; Men EssayEric Cantona, former Manchester United player, because he use to foul a lot in football and done a flying kick at someone on live T.V. Stan Collymore, because slapped his girlfriend. John Fashinu, because he use to set-up matches so he could score lots of goals and win. Bruce Gobblar, former Liverpool goalkeeper, because people use to pay him to let goals in and lose. Zidane, Juventus footballer, because he wanted to leave he told everyone his wife wanted to go to Spain so he could leave the club. Romario, was one of Brazils top strikers, in my opinion he is a bad role model, because he use to always bunk the training sessions and sometimes not even attending football matches. ConclusionAlthough it is good to look up to people and have dream about being like that person or something, but in my opinion, I say that there should be no such things as role models, it influences people to do things what there role model does, mostly something not good, and as you can see from above, all the stuff the negatives do, aint that bad but I could keep on naming role models that give bad impressions and I could hardly name 5 that give positive impressions

One dark body essays

One dark body essays One race, enslaved for hundreds of years and taken away from their homeland, only to awake in foreign territories completely conflicting with their racial and native cultural heritage. The Africana heritage is a deep, intrinsic one with roots tied to the earliest know human existence, but within today's society, their ancestry has been created to be multi-cultural and shifted away from their original identity. But identity, with its prismatic and multi-layered dimensions which include racial, cultural, gender, national, and transnational ideals - is a precarious and contested category. The African identity wasn't always this perverse or questioned. With the development of America, many different races were formed and rearranged to fit the norms and standards of the new land, which was thought to be superior. Do you think the Africana people wanted to be taken out of their land, out of their heritage, out of their culture, to assimilate within a society not like anything they had ever seen or probably wanted to see? Du Bois, W.E.B., a black American historian and sociologist, put it perfectly when he made a statement on the ambiguity of the black identity: "One feels his two-ness - An American, a Negro, two souls, two thoughts, two unreconciled strivings, two warring ideals in one dark body." This is describing the Africana experience within America and expressing an effort that black Americans were attempting to reconcile with their Africana heritage with their pride in being U.S. citizens. The pride, though in today's society might hold true - was originally a forced pride in an attempt to declare that this was the land of the free and brave, but hey, for now you are the slaves with no rights. Africana cinema deals with all of these aspects within the films. Through the films, some express black identity with political struggl ...

How to Measure Volume and Density

How to Measure Volume and Density Archimedes needed to determine if a goldsmith had embezzled gold during the manufacture of the royal crown for King Hiero I of Syracuse. How would you find out if a crown was made of gold or a cheaper alloy? How would you know if the crown was a base metal with a golden exterior? Gold is a very heavy metal (even heavier than lead, though lead has a higher atomic weight), so one way to test the crown would be to determine its density (mass per unit volume). Archimedes could use scales to find the mass of the crown, but how would he find the volume? Melting the crown down to cast it into a cube or sphere would make for an easy calculation and an angry king. After pondering the problem, it occurred to Archimedes that he could calculate volume based on how much water the crown displaced. Technically, he didnt even need to weigh the crown, if he had access to the royal treasury since he could just compare the displacement of water by the crown with the displacement of water by an equal volume of the gold the smith was given to use. According to the story, once Archimedes hit upon the solution to his problem, he burst outside, naked, and ran through the streets yelling, Eureka! Eureka! Some of this might be fiction, but Archimedes idea to calculate the volume of an object and its density  if you know the objects weight was fact. For a small object, in the lab, the easiest way to do this is to partly fill a graduated cylinder large enough to contain the object with water (or some liquid in which the object wont dissolve). Record the volume of water. Add the object, being careful to eliminate air bubbles. Record the new volume. The volume of the object is the initial volume in the cylinder subtracted from the final volume. If you have the objects mass, its density is the mass divided by its volume. How to Do It at Home Most people dont keep graduated cylinders in their homes. The closest thing to it would be a liquid measuring cup, which will accomplish the same task, but with a lot less accuracy. There is another way to calculate volume using Archimedes displacement method. Partially fill a box or cylindrical container with liquid.Mark the initial liquid level on the outside of the container with a marker.Add the object.Mark the new liquid level.Measure the distance between the original and final liquid levels. If the container was rectangular or square, the volume of the object is the inside width of the container multiplied by the inside length of the container (both numbers are the same in a cube), multiplied by the distance the liquid was displaced (length x width x height volume). For a cylinder, measure the diameter of the circle inside the container. The radius of the cylinder is 1/2 the diameter. The volume of your object is pi (Ï€, ~3.14) multiplied by the square of the radius multiplied by the difference in liquid levels (Ï€r2h).

Differences in Mergers Research Paper Example | Topics and Well Written Essays - 250 words

Differences in Mergers - Research Paper Example The merger between a manufacturing company and one of its distribution channel partners is an example of a possible vertical merger. When IBM acquired Intelliden in 2010 it is an example of another form of vertical merger. The smaller Intelliden in the business activity of automation software technology was vertically merged with the larger IBM, enabling IBM to make use of its automated software competencies, so that it did not have to create these competencies and develop the software available with Intelliden. A conglomerate merger is totally different from a horizontal and vertical merger, as it involves the merger between two companies that operate in different sectors of industrial activity. A clear example of such a merger can be seen from the merger of the financial company Berkshire Hathaway with the railroad and transportation company Burlington Northern Santa Fe (Pride, Hughes & Kapoor, 2010,

Oil and Petroleum industry in UK Essay Example | Topics and Well Written Essays - 1750 words

Oil and Petroleum industry in UK - Essay Example However, there are industries, like the oil and petroleum industry, which have managed to keep their competitiveness and remain intact from global market pressures. Current paper focuses on the oil and petroleum industry of the UK. The specific industry is considered as highly profitable, as analysed further below. Still, the industry has been related to anti-competitive behaviour, supporting the development of oligopolies. The characteristics and the competitive behaviour of the above industry are explored in this paper. Emphasis is given on the industry’s potentials to control anti-competitive behaviour and promote the equal development of its members. 2. Oil and Petroleum industry in UK 2.1 Current supply and demand conditions The oil and petroleum industry of UK is highly developed, a fact related to the country’s high efficiency in terms of oil and gas. Indeed, it has been proved that a percentage of 99% of oil and gas produced in UK is extracted from ‘the se abed surrounding the country’ (Oil & Gas UK 2012). The producing fields of the oil and petroleum industry of UK have been estimated to 383 (Oil & Gas 2012). ... For example, the country’s oil and gas production of 2009 reached high levels, covering ‘the two-thirds of the local energy needs’ (Department of Energy and Climate Change 2012). The particular industry also supports that UK economy; the contribution of the industry in the UK economy has been estimated to ‘an average of ?8 billion annually’ (Department of Energy and Climate Change 2012). In the context of the global market, the performance of the oil and petroleum industry of UK can be characterized as quite satisfactory, leading to the classification of UK as one of the most powerful oil and gas producers worldwide. Indeed, ‘in 2008 UK ranked 14th’ (Department of Energy and Climate Change 2012) in terms of its oil and gas production. It should be noted that the industry’s key firms have been estimated to 30 (see Table 1, Appendix); however, among these only 3 are those that share the key part of the oil and petroleum industry of U K (see those firms highlighted in Table 1, Appendix). 2.2 Collusive behaviour in the industry Collusive behaviour reflects the use of practices that are opposed to market ethics or to the law. In the oil and petroleum industry of UK such practices may have occurred but have not clearly reported or identified. However, there are signs that indicate the existence of such practices. For example, in a report published by the Department of Energy and Climate Change of UK (2012) it is explained that the production of oil in UK has reached up to now ‘the 40 billion barrels even if the potential for 20 more billion barrels existed’ (Department of Energy and Climate Change UK 2012).

Thinking Book Review Essay Example for Free

Thinking Book Review Essay Book Review:   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The chapter speaks about personal barriers and the system of enculturation. Enculturation meaning the way we were raised up by our families, the culture, work and religion affecting us through the way we see things. Importantly, are the factors of acceptance in society and following those norms through your lifestyle.   The things you eat, drink, religious beliefs, violence and discrimination are all generated by enculturation.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   When people step aside from the conditions of enculturation, they become more aware of the teachings and the ideas of others. It creates a theme of having an open mind and of better understanding. If the individual would step aside from some of the things brought down by family and the environment it would disregard many of the misconceptions being spread and taught. If those who are unable to resist the process of enculturation tend to be fanatics instead of thinking things objectively on different social and ethical concerns. Critical Review:   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Overall, the chapter allows one to reflect upon ourselves to see how culture, environment, and family affect us in many different ways. From the ideology to the way we treat people, we see others who think different than us as ignorant or blind but in actuality it is us who categorize and judge others based on our beliefs. Our own egos get in the way of learning and understanding other people or from experiences we would not have if it was not because of our own ideas. In the long run, we have to rationalize and understand that different ideas and personalities are what make us unique and learn to disagree or agree without regarding your personal emotions. We ourselves placed these personal barriers that as time pasts leads us to regret and stress.

Essay --

Literature is our ancient form of a hard drive where we can read something from the past and connect with our present. The more we read, the more literate we become. Therefore, we have the opportunity to open our minds to more ideas and try to understand the way other human beings think. From the beginning of time human beings have developed methods to communicate with each other. Our ability to develop these methods have allowed us to pass our knowledge from one generation to another. This development has given us the opportunity to expand our knowledge to higher standards. Literate work is beneficial to all of us by allowing us to understand others way of thinking, the ability to analyze characters, learn about the authors experiences and stimulate our mind. Literature gives us an insight of what other people think, feel, know, understand and gives us a glimpse of their past to name a few. In â€Å"Fences† by August Wilson, we learn how African American people have struggled to have equality. Wilson is able paint a picture for us through his literary work. As we read this play, we can almost feel as if we are there with the characters. We are able to learn how they dealt with obstacles when segregation was still happening and what they did to overcome those obstacles. Without Wilson’s literary work, we would not be able to acquire the knowledge and understanding from the past. Literature allows us to be able to evaluate characters. We can analyze the character analytically and with an open mind. The more we are exposed literary works, the more we are able to omit the obvious in characters. We are able to create our own thoughts about them and use our critical thinking skills to connect with them on a more in depth level. A perfe... ...d dive into our imaginations allowing us to have a pleasant break from our everyday routine. Literature is often our sanity in a busy, hectic life. How about a good thriller or mystery? These works are exciting because we find ourselves playing detective and involved in situations we normally wouldn’t be immersed in. A good romance novel will keep that helpless romantic hopeful and full of joy believing in a life of love and happiness. It is important to expose children to literature. Their minds are vessels filling with information and expanding with knowledge every day. It’s important they read about history to learn where they came from. No matter how young our old we can all benefit from literature and even become kinder, smarter and happier beings. In short, Literature is an expression of individual thoughts and feelings achieved through our unique creativity.

Food Safety Work File Essay

Directions: Complete the food safety interactive quiz. Use the information from the interactive quiz to complete the following responses regarding food safety practices. For each of the following food safety practices, share at least 2 statements from the interactive quiz. Be sure to put these statements in your own words and explain why they are helpful in preventing food borne illness. An example would be: When dining from a buffet, make sure hot food is hot and cold food is cold. Food that is 40 – 140 degrees Fahrenheit has already begun to grow bacteria and pathogens. Clean (16 points): 1.Keeping your hands clean keep from getting sick 2.Keep surface clean after cooking, or letting something on it. Separate (16 points): 1.When cross contamination happens it spreads germs from 1 item to a a food item getting u sick. 2.Don’t put cooked food on same item a raw food was on without cleaning it. Cook (16 points): 1.A food thermometer is the only way you can tell if foods at the right temperature to kill bacteria. 2.Cook thawed food to minimum internal temp to kill germs. Chill (16 points): 1.When cooked food is left out it can grow bacteria that make u ill. 2.Freezing foods to 0 degrees inactivates bacteria. In your own kitchen, explain 2 food safety practices you feel your family can improve and 2 food safety practices you feel your family does well. (16 points) We can improve cooking food to the correct temp, and cleaning our hands after touching raw foods. In what ways do your school and community practice or promote food safety to contribute to your personal health? (20 points)

Business Strategy and Innovation of Cisco Systems Inc

EXECUTIVE SUMMARY The purpose of the report was to discuss the business strategy of Cisco Systems Inc (Cisco), a company widely considered innovative. The report was to discuss the justification of Cisco’s status of innovative, how the business environment impacted on Cisco and it’s opportunities for innovation, their sources of competitive advantage, strategic options available to Cisco, and evaluate the risks of implementing the strategic change to achieve this optionThis was done by evaluating Cisco’s current strategies, its business environment and markets, applying strategy frameworks in the context of its industry and innovation, and by analysing the risks that could be associated with implementing this change. Cisco innovate in three ways; they build innovation using research and development budgets; they buy innovation, by making strategic acquisitions; and they partner, developing strategic partnerships and ecosystems to aid innovation. Cisco’s ex ternal environment was assessed using PESTEL analysis and applying Porter’s Five Forces framework.It was established that the main key drivers for change were technological and worldwide competition laws. VRIN Frameworks were applied to assess Cisco’s sources of competitive advantage, as well as some of the threats they face in these areas. It would appear that the biggest threat to Cisco in this area is Non-substitutability; Cisco’s competitors are eroding their market share by offering similar products. Two strategic options were discussed; selling their enterprise products directly to the end users and entering the consumer market.It was decided that the more radical of the two was entering the consumer market; and the risks associated with implementing the change, along with advice on how Cisco could manage the strategic change, were discussed. TABLE OF CONTENTS 1. 0 INTRODUCTION5 2. 0 IS CISCO INNOVATIVE? 6 3. 0 CISCO AND THEIR BUSINESS ENVIRONMENT8 3. 1 TH E MACRO ENVIRONMENT8 3. 2 KEY DRIVERS FOR CHANGE8 3. 3 APPLYING PORTER’S FIVE FORCES FRAMEWORK9 3. 3. 1 The Threat of Entry10 3. 3. 2 Threat of Substitutes11 3. 3. 3 Power of Buyers11 3. 3. 4 Power of Suppliers12 3. 3. 5 Competitive Rivals12 4. 0 COMPETITIVE ADVANTAGE13 4. 1 Value14 4. 2 Rarity15 . 3 Inimitability15 4. 4 Non-Substitutability16 4. 5 Cisco’s Organisational Knowledge16 5. 0 STRATEGIC OPTIONS17 6. 0 IMPLEMENTING STRATEGIC CHANGE19 6. 1 Risk20 6. 2 Managing Strategic Change21 7. 0 CONCLUSION22 8. 0 REFERENCES24 9. 0 BIBLIOGRAPHY26 1. 0 INTRODUCTION Cisco Systems Inc (Cisco) was established in 1984 by a husband and wife team who wanted to solve the technical issue of emailing each other, but on different networks, and developed the first multi-protocol router, a device which allowed the different networks to ‘talk’ to each other by translating the different protocol languages (Cisco Systems Inc, 2012).This report will examine Cisco as an innovat ive company, the external factors affecting their ability to innovate, their sources of competitive advantage within the industry and consider some of Cisco’s strategic options, the risks associated with the changes in strategy and how this can be managed. The information has been compiled from information published by Cisco on their website, Exploring Strategy, Ninth Edition (Johnson, Whittington and Scholes, 2011), Academic Journals and published articles. 2. 0 IS CISCO INNOVATIVE?To establish if Cisco is innovative, first we have to define what innovation is. Innovation can be defined as, â€Å"†¦the conversion of a new knowledge into a new product, process or service and the putting of this new product, process or service into actual use. † (Johnson, Whittington and Scholes, 2011, pg 296). Therefore until the product, process or service is brought to the market; it cannot be considered an innovation. In regards to innovation, Cisco has an extensive innovation strategy. They do this using their â€Å"three pillars of innovation: build, buy and partner† (Cisco, 2012.Acquisitions, pg 1. ), The ‘Build’ aspect relates to internal innovation, whereby they develop products and services with Research and Development (R&D). They have 7 major laboratories in locations around the world, and employ around 20,000 engineers (Cisco, 2012). The diversity of basing these facilities all over the world will only help to aid innovation, as the people can use their own cultures and experiences to develop new product and services, thereby helping to develop worldwide solutions to global industry problems. Yearly Cisco invests over $5 Billion on R&D (Cisco, 2012).With regards to their ‘Buy’ aspect of their innovation strategy, Cisco is constantly looking to acquire technologies to improve their current product range. Cisco has acquired over 160 companies up to the end of 2012, and will continue to actively seek out acquisition opportunities to increase their product range (Cisco, 2012). It may be argued that innovation by acquisition is not innovation; however the innovation comes with the integration of these technologies into their existing product ranges and taking new products to market.Cisco also purchase technologies that have yet to be brought to the market, so are more inventions than innovations, and take calculated risks in doing so. Cisco’s approach to innovation is an open one, and they have many strategic partnerships. Cisco is aware that to maximise the potential of their products, they must rely on the products of other vendors. Cisco have created an Ecosystem, to help develop their Cisco Unified Computing System (UCS), a system that Cisco see as the future of the IT network; the collaboration of the network, all managed simultaneously on one platform (Cisco, 2012).By opening up their innovation to these ecosystem partners, it will engage the partners on a positive way and ensure tha t the partner’s complimentary products and services will be fully compatible with the UCS. The ecosystem approach will help speed up innovation, as more people working together to create innovative products or services are more likely to get superior products to market faster (Johnson, Whittington and Scholes, 2011). Cisco has, since inception, been a first-mover in its markets. Cisco’s vision, â€Å"Changing the way we work, live, play and learn† (Cisco, 2012.Corporate Overview Pg 11), shows that they want to lead the market in developing networking technologies. This gives them considerable advantages, allowing them to become market leaders in these areas, and charge a premium for these products. 3. 0 CISCO AND THEIR BUSINESS ENVIRONMENT When we discuss the business environment, we are in fact looking at the environment where the business operates. In this section the external environment will be analysed using PESTEL framework, focusing on some of the key dri vers for change, use Porters Five Forces to analyse the Industry and will look at the opportunities and threats Cisco face. 3. THE MACRO ENVIRONMENT The Macro Environment of a business is concerned with the external factors which affect almost all organisations (Johnson, Whittington and Scholes, 2011). Appendix A shows a PESTEL analysis for Cisco, outlining some of the issues which they face. For the purpose of the report, however, only the important key drivers for change will be discussed. 3. 2 KEY DRIVERS FOR CHANGE Looking at the PESTEL Analysis, there are some that are more relevant to the industry Cisco operate – Technological. Virtualisation technology became one of the most important key drivers for change in the IT industry of recent times.This meant companies like Cisco had to begin to develop systems that would take advantage of this. This has led to huge developments in ‘Cloud’ technologies, where the resources are provided, at a service fee, over the internet. They provide several variations of the ‘x-as-a-service’ model. This is beneficial to cash-conscious companies, who are looking to reduce the expensive CAPEX costs IT infrastructure incurs, passing this responsibility onto the service provider. The rate at which this technology has been released and adopted has fuelled Cisco’s innovation, as they have to innovate to continue to remain competitive.Another key driver for change is the Competition Laws Cisco are faced with, namely the US Antitrust policy, whereby all acquisitions have to be approved by the Department of Justice and the Federal Change Commission, who look at how acquisitions will affect the competition balance. They do not, however look at the innovative developments these acquisitions will create, nor if the benefit of such innovation outweighs the competition problems (Mandel and Carew, 2011). Appendix B shows some of the scenario outcomes of the effects of acquisition laws on the develop ment of technologies in the Cloud market.Scenario building can be useful, however you cannot have just one universal scenario for the company as a whole, there can be an endless chain of scenarios created for every situation that can be thought up. That is why, when looking at scenarios, it is important to identify the key drivers for change. 3. 3 APPLYING PORTER’S FIVE FORCES FRAMEWORK Porter’s Five Forces Framework can help Cisco establish if an industry is an attractive option, identifying five areas in competitive forces; the threat of entry, the threat of substitutes, the power of buyers, the power of suppliers and competitive rivalry (Johnson, Whittington and Scholes, 2011).For the purpose of the report, we will focus this next section on Cisco’s Switching market. 3. 3. 1 The Threat of Entry Cisco must be aware of potential competitors into their markets, and creating sufficient barriers to entry can help. These barriers need to be overcome by new entrants to the market if they wish to compete (Johnson, Whittington and Scholes, 2011). Cisco, as first-movers, has created several barriers to entry; Cisco has greater experience over its rivals and uses its first-mover advantages to secure market share before anyone else tries to compete.Cisco do not manufacture the components of their products, they rely on over 600 companies for this (Cisco, 2012). They could try to secure exclusivity with these suppliers, thereby reducing the new entrant’s ability to buy the same components, making it harder for them to replicate Cisco’s products. In response to competition threats, Cisco could, in theory, enter into price wars with new entrants to the market, they could increase their marketing spend, and out-market the new entrants, as they have the financial means to do so.Overall, the threat of new entrants means Cisco have to remain innovative, to product new products, protected by patents, and creating new industry standards, to ma intain their share of the market. 3. 3. 2 Threat of Substitutes With the emergence of cloud technologies, Cisco was in danger of falling behind and their products substituted with Cloud technologies. However Cisco has developed products to compete in this area, for example their Switching-as-a-Service, giving their customers the option to have their network switching hosted in the cloud.To avoid being substituted, Cisco had to adapt to the emergence of Cloud technologies to remain relevant. Emerging technologies such as this ensure Cisco retains their innovative edge. 3. 3. 3 Power of Buyers Cisco only sells their enterprise products through a network of distributers. This increases the distributers buying power as Cisco are reliant on them. However due to the complexity of the products, there doesn’t appear to be a threat from the buyers in terms of competition, as they are unlikely to find backward vertical integration attractive.Cisco have to remain innovative to maintain the relationships with their buyers, if Cisco are seen to fall behind technology’s advance, then they will become obsolete to the buyers, and they will look to buy other products that are innovative. 3. 3. 4 Power of Suppliers As previously discussed, Cisco relies on over 600 suppliers to provide the components of their products. This gives the suppliers power, as delays in Cisco receiving their products will disrupt their supply chain. 3. 3. 5 Competitive Rivals In the switching market, Cisco currently hold around 69% of the market share Cisco, 2012), and while this is a comfortable position to be in, Cisco must not become complacent. HP is growing in market share year-on-year (Gabra, 2012), offering Cisco real competition in affordable managed switching products. HP also has a strong brand and a large presence in both the business and consumer markets. This makes HP an attractive alternative to the end user, which is a threat to Cisco’s core switching business. Cisco has to continue to develop their products, make them better than the rivals, to ensure they can maintain the market share.Customers need to see that they are getting value for money, so Cisco must do this with that in mind, they have to make the products affordable AND innovative. Cisco is strong in many areas discussed, they are innovative in nature, it is part of their history that they began and continue to innovate. As innovation is part of Cisco’s DNA, this is unlikely to change. They are developing some of the traditionally physical technologies (switching for example) for the cloud market, creating cloud platforms which they can still provide their core products from.Cisco has patent protection on their products, which puts them in a strong position to their competitors. To keep this patent protection relevant they need to continue to invent new designs to bring to market. They do have some weakness; the entry of HP to their core switching market is worth noting. Cisc o have still got a good market share, however HP are slowly eroding this, with gains in market share each year. Cisco will have to tackle this to ensure this erosion does not progress too far. To do this they must continue to produce superior products to HPs, and thereby drives their innovation. 4. COMPETITIVE ADVANTAGE As previously discussed, Cisco currently have over 69% of the market share in their switching market. How does Cisco maintain their competitive advantage? The resource-based view is that, â€Å"†¦competitive advantage and superior performance of an organisation is explained by the distinctiveness of its capabilities. † (Johnson, Whittington and Scholes, 2011 pg 83) This is to say that it is the capabilities of the companies which give it the competitive advantage; the development of new innovative technologies alone will not give a company this competitive advantage (Eng & Luff 2011).Looking at some of Cisco’s resources and competences (Appendix C) we can see that these are wide-ranging, from the obvious of buildings, Computer Equipment and Employees, to the less obvious; strong balance sheet, worldwide R&D and Ecosystems. From here we can establish which of these are threshold resources and capabilities, those which are required to compete in a market (Johnson, Whittington and Scholes, 2011) and the distinctive resources and capabilities, those required to give a company it’s competitive advantage (Johnson, Whittington and Scholes, 2011).These have been illustrated in Appendix D. For the purpose of this report we will focus on the distinctive resources and capabilities, as those are the ones which will secure Cisco’s Competitive Advantage, and apply VRIN Framework to assess Cisco’s basis of these advantages; Value, Rarity, Inimitability and Non-substitutability. 4. 1 Value â€Å"Strategic capabilities are of value when they provide potential competitive advantage in a market at a cost that allows an org anisation to realise acceptable levels of return†¦Ã¢â‚¬  (Johnson, Whittington and Scholes, 2011 pg 90).Cisco does this by taking advantage of opportunities and limits the threats that they are presented with (Johnson, Whittington and Scholes, 2011). Acquisitions allow them to adopt new technology that their rivals cannot. If, for example, they were only to licence technology from these companies, their competitors could also. By buying these companies this allows them exclusive access to the technologies. Cisco’s R&D spending and the acquisition of technologies allow Cisco to produce products, which they protect with patents, that their competitors do not have, putting them ahead of the competition.Cisco spends billions of dollars each year on R&D, however still produce good profits which is acceptable to their shareholders. This shows that the shareholders understand that to achieve and maintain the market share, then spending on this level is acceptable. 4. 2 Rarity â€Å"Rare capabilities†¦are those possessed uniquely by one organisation or by a few others. † (Johnson, Whittington and Scholes, 2011). Cisco currently has over 8000 patents protecting their products, and files around 700 more per year.This gives them long lasting protection from competitors. Cisco employ over 20,000 engineers (Cisco, 2012) and the skills and knowledge of these people is a valuable commodity. Cisco must ensure they try to maintain a high level of staff retention to avoid engineers going to work for competitors. Cisco has a strong brand in the business market, with around 69% of the market share in the switching market alone (Cisco, 2012).Cisco have to ensure that they keep creating new rare capabilities to maintain this competitive advantage and adequately protecting innovations, for example, in the USA design patens last 14 years (United States Patent and Trademark Office, 2003) and 20 years in the UK (Intellectual Property Office, 2011). 4. 3 Inimita bility â€Å"Inimitable capabilities – those that competitors find difficult to imitate or obtain† (Johnson, Whittington and Scholes, 2011 pg 91). Cisco work with their customers to ensure that their needs are met, in turn this leads to co-specialisation (Johnson, Whittington and Scholes, 2011).If Cisco is successful with this, then the customer is more likely to come back to them with future problems for Cisco to solve, and are unlikely to move to a competitor. Cisco’s innovative culture was imbedded into the company right from inception. Cisco has a competitive advantage here as innovation is something they just ‘do’ and have always done. Breeding this into an established company may prove difficult due to a lack of experience, resources and change resistance.Cisco also adapt well to changes in market conditions, and as technology moves forward, so do Cisco; by producing products and services to meet emerging technology. 4. 4 Non-Substitutability Cisco is at risk of substitution by competitors. Patent protection lessens the risk as by the time the patents expire; technology will have advanced so much that the patented technology is already old. This also does not stop companies from copying ideas; you only need to look at the press coverage of Smartphone producers taking each other to court, accusing the other of patent infringement.Cisco has to ensure that the products and services they offer remain ahead of the competition, to get a foothold on the market, to avoid substitution. 4. 5 Cisco’s Organisational Knowledge â€Å"Organisational knowledge is the collective intelligence, specific to an organisation, accumulated through both formal systems and the shared experience of people in that organisation. † (Johnson, Whittington and Scholes, 2011 pg 94) The items discussed in the VRIN framework above can be consolidated into the organisational knowledge of Cisco, and this too creates competitive advantage.The ex plicit knowledge gained by using codified information within the company’s structure and the tacit knowledge gained by experience and expertise combines is difficult to imitate, thereby creating a source of competitive advantage over rivals (Johnson, Whittington and Scholes, 2011). 5. 0 STRATEGIC OPTIONS When assessing Cisco for potential strategic options, the following had to be considered; what markets do Cisco currently operate in, what products and services do they provide and is there any scope within the value chain for vertical integration?Two of the options which came to light were selling their enterprise products directly to the end user and entering the consumer market. Using the â€Å"Ansoff product/market growth matrix† (Johnson, Whittington and Scholes, 2011 pg 232) selling products to the end user would be market penetration, which would involve Cisco increasing their market share with their current product range through vertical integration of the Sale s and Marketing part of the value chain.The reasons behind Cisco taking this approach would be the potential of increased profit margins. By selling through distribution channels and partners, Cisco will come up against bias towards their competitors. As end users often rely on their IT reseller for advice on what they require, if the IT reseller has a preference for a competitor, then Cisco will lose the opportunity, regardless if their product is superior. They will increase their contact with their end users, and this will increase customer visibility and co-specialisation.Marketing direct to the end user will provide a greater visibility of the Cisco brand and could help build their brand awareness. This would also give them an advantage over competitors who do not sell online, and allow them more direct competition with those that do. They would still be able to work with their partners, as the partners would be the ones implementing the equipment, and will maintain their curre nt partner program revenue.There are a few issues that Cisco needs to be aware of if they implement this option; this will be costly. They will have to increase their sales and marketing presence, and they will also have to increase their distribution facilities, as well as create a direct sales channel, especially an online sales platform. They also run the risk of alienating their partners, as they will be in direct competition with them, which could result in partners looking to other options.This however could be combated by working with the partners, using partner deal registration procedures, to ensure that Cisco and their partners do not end up going after the same deals. They could also provide a referral system for new customers to the partners, if they buy direct from Cisco, then Cisco will refer them to a partner to handle the installation and management of the system. It may be that for this to work Cisco would have to withdraw their business from the distributers, essen tially cutting out some of the middle men.With regards to entering the consumer market, Cisco could go into the market selling new products and services (conglomerate diversification) however in this their current portfolio could be included, as they would be new products into the market (Johnson, Whittington and Scholes, 2011). Consumers are looking for ways to combine their work and home technologies, making accessing all of the information they require easier. Therefore entering the consumer market with a mix of both current and new products may be prudent.This would allow them to build a market share on the products they know well. With new products, Cisco’s innovation policy of â€Å"Build, buy and partner† could apply here; they could build new products, for example set-top TV boxes and smart TVs which include their collaboration products (Cisco Jabber and TelePresence); buy innovation, for example if they were to buy a telecoms provider such as TalkTalk, they co uld introduce IP Telephony at home as a standard offering; or they could partner with the producers of these products to integrate Cisco technologies into these products.This would allow Cisco to generate Economies of Scope, as they would be able to use their existing resources in the new market. This may also produce a synergistic effect (Johnson, Whittington and Scholes, 2011) as the increased brand awareness in the consumer market may bring more sales into the business market and vice-versa. 6. 0 IMPLEMENTING STRATEGIC CHANGE In the previous section two possible strategic options were considered; selling their enterprise products direct to the end user and entering the onsumer market. Here the focus will be on the more radical option of entering the consumer market and will look at the risks associated with implementing this change and how this change can be managed. When evaluating strategies, it is important to look at three key areas; Suitability, Acceptability and Feasibility , otherwise known as SAFe. For the purpose of the report we will focus on risk, a key point in assessing the Acceptability of the strategy (Johnson, Whittington and Scholes, 2011). . 1 Risk â€Å"Risk concerns the extent to which the outcomes of a strategy can be predicted† (Johnson, Whittington and Scholes, 2011 pg 371). This can be assessed using different financial and statistical tools to establish the effects of the strategy on the Cisco’s risk level. Sensitivity testing can be used to challenge the different assumptions about a strategy and what the effects the ‘what if’ scenarios will produce (Johnson, Whittington and Scholes, 2011).If Cisco enters the consumer market with assumptions of how much revenue this will generate, and there is an economic downturn, resulting in reduced revenue, what will the effects if this reduced revenue be? Financial Ratios would allow Cisco to look at the financial impact of the strategic option (Johnson, Whittington a nd Scholes, 2011). For example, entering into the consumer market would be of high financial risk due to sunk costs in setting up the new business stream and increased R&D costs, which would have a negative impact on the financial position of Cisco.Break even analysis is another financial tool that can be used to assess risk. This analysis shows the point where revenue will match fixed and variable costs, allowing Cisco to know the level of revenue required to break even (Johnson, Whittington and Scholes, 2011) and assess if it is even viable. 6. 2 Managing Strategic Change Due to the rate that the technology markets change, Cisco should adopt a revolutionary change strategy (Johnson, Whittington and Scholes, 2011) to ensure they take advantage of the opportunities available to them.They must ensure that there is a clear and concise strategic direction communicated throughout the company and to its stakeholders. To do this Cisco may be required to make changes to management, taking in new people to reinforce the changes (Johnson, Whittington and Scholes, 2011), preferably people with a proven track record in the consumer market. Management must also be ready to provide a business case for change (Johnson, Whittington and Scholes, 2011) to outline why the proposed strategy is a good one, and may include some of the risk assessments mentioned above.Some of the decisions made to facilitate the change may seem extreme; changes in management, portfolio changes, increased focus on the consumer market and increased R&D spend, however these can be seen as both symbolic and rational levers for change (Johnson, Whittington and Scholes, 2011). In managing resistance to change, Cisco should adopt a situational leadership style, where they can use different styles in change leadership to adapt to different situations (Johnson, Whittington and Scholes, 2011).This will allow Cisco the flexibility to use different methods to increase stakeholder ‘buy-in’ to the s trategy. Some stakeholders may resist the changes as they may feel they are unnecessary or the timing is wrong, and it is essential that this is controlled to avoid stakeholders just ‘doing what they are told’. Compliance, as opposed to co-operation (or ‘buy-in’) can be detrimental to the success of the strategy, as underneath the surface nothing will have changed. Using this methods to achieve co-operation from stakeholders will keep the strategy focused (Johnson, Whittington and Scholes, 2011).However managers must also be sensitive to the strategy resistance, if there is a large amount of resistance they must assess to see if the resistance is warranted. Managers should be, wherever possible, honest in regards to the progress of the strategy (Johnson, Whittington and Scholes, 2011), from their business case for change, the progress of the change, through to the results achieved by the change. Failure to be honest in this will result in the stakeholders l osing faith in the strategy. 7. 0 CONCLUSIONCisco’s innovation is based around their ‘three pillars of innovation’; ‘Build’, where they spend around $5 Billion per year on R&D; ‘Buy’, they have acquired over 160 companies over the years and actively seek out new acquisition possibilities each year; and ‘Partner’, Cisco has developed strategic partnerships and ecosystems to aid innovation. The innovation culture has been part of Cisco’s strategy since the company was formed in 1984. The business environment Cisco operates in was discussed using PESTEL analysis and applying Porter’s Five Forces Framework.With the PESTEL analysis it was established that most of their Key Drivers for Change came from the Technological area of PESTEL. It was also decided that the legal aspects relating to competition law was also a Key Driver for Change, as it impacts their Acquisition policies. Scenario building was deemed importan t, however Cisco must be aware that not one scenario was sufficient, they must develop scenarios for all of their Key Drivers for Change. Porter’s Five Forces was discussed to show some of the factors which determine if the industry is attractive, and the threats Cisco face within the industry.It was determined that innovation alone does not bring competitive advantages. Cisco’s distinct resources and capabilities were assessed against the VRIN framework to identify the sources of their competitive advantage. The VRIN framework can also be consolidated to form Cisco’s organisational knowledge, which was also identified as another competitive advantage. Two strategic options for Cisco were discussed, selling of their enterprise products direct to the end user, and entering the consumer market. It was decided that the more radical of the two was the entry into the consumer market.The risks associated with implementing this strategy were discussed as was managing t he change. It was concluded that Cisco should adopt a revolutionary change strategy to facilitate the strategy implementation. 8. 0 REFERENCES CISCO SYSTEMS INC, (2012). 2012 Annual Report. [online]. San Jose: Cisco Systems Inc. Available from: http://www. cisco. com/assets/cdc_content_elements/docs/annualreports/ar2012. pdf [Accessed 19 November 2012] CISCO SYSTEMS INC, (2012). Corporate Overview. [online]. San Jose: Cisco Systems Inc. Available from: http://newsroom. cisco. om/documents/10157/0/Corporate+Overview+-+Q2FY12. pdf [Accessed 19 November 2012] CISCO SYSTEMS INC, (2012). Cisco Overview. [online]. San Jose: Cisco Systems Inc. Available from: http://newsroom. cisco. com/overview [Accessed 19 November 2012] CISCO SYSTEMS INC, (2012). Acquisitions. [online]. San Jose: Cisco Systems Inc. Available from: http://www. cisco. com/web/about/doing_business/corporate_development/acquisitions/about_cisco_acquisitions. html [Accessed 21 November 2012] CISCO SYSTEMS INC, (2012). Ecosys tem Partners. [online]. San Jose: Cisco Systems Inc.Available from: http://www. cisco. com/web/strategy/energy/ecosystem_partners. html [Accessed 29 November 2012] ENG, T-Y. and LUFF, P. , (2011). Competing and developing competitive advantage in the digital world. [online]. London: Routledge. Available from: [Accessed 19 November 2012] GABRA, M. , (2012). Ethernet Switching Market Share: Did HP eat up that much share from Cisco? [online]. Palo Alto: Hewlett-Packard Company. Available from: http://h30507. www3. hp. com/t5/HP-Networking/Ethernet-Switching-Market-Share-Did-HP-eat-up-that-much-share/ba-p/120753 [Accessed 25 December 2012]IPO, (2011). Renewing your patent. [online]. Newport: Intellectual Property Office. Available from: http://www. ipo. gov. uk/types/patent/p-manage/p-renew. htm [Accessed 28 December 2012] JOHNSON, G. , WHITTINGTON, R. and SCHOLES, K. , (2011). Exploring Strategy, Ninth Edition. Essex: Pearson Education Limited. MANDEL, M. and CAREW, D. G. , 2011. Innov ation by Acquisition: New Dynamics of High-Tech Competition. [online]. Washington: Progressive Policy Institute. Available from: http://capitalis. com/admin/white_papers/file43. pdf [Accessed 3 December 2012] USPTO, 2003.How long does patent protection last? [online]. Alexandria: United States Patent and Trademark Office. Available from: http://www. uspto. gov/main/faq/p120013. htm [Accessed 28 December 2012] 9. 0 BIBLIOGRAPHY CISCO SYSTEMS INC, 2012. 2012 Corporate Social Responsibility Report. [online]. San Jose: Cisco Systems Inc. Available from: http://csr. cisco. com/cdnorigin/media/documents/CSR-Report-2012-Full-Report_129973894373990000. pdf [Accessed 19 November 2012] D’AVENI, R. , 2007. Mapping YOUR competitive position. [online]. Available from: [Accessed 5 November 2012] EVANS, D. , 2012.How the Internet of Everything Will Change the World†¦for the Better. [online]. San Jose: Cisco Systems Inc. Available from: http://blogs. cisco. com/news/how-the-internet-of- everything-will-change-the-worldfor-the-better-infographic/#more-90780 [Accessed 3 December 2012] HAMEL, G. and PRAHALAD, C. K. , 1989. Strategic Intent. [online]. HILL, T. and WESTBROOK, R. , 1997. SWOT Analysis: It’s Time for a Product Recall. [online]. PORTER, M. E. , 2001. From competitive advantage to corporate strategy. [online]. TEECE, D. J. , 2009. Business Models, Business Strategy and Innovation. [online].

Consideration for Ethics and Diversity Proposal

Consideration for Ethics and Diversity Proposal Ethics in organizations is an important ingredient of organizational success. Both the employers and employees ought to act ethically to ensure that the goals and objectives of the organization are achieved (Mello, 2006). However, given the different personalities and thinking of human beings, ethical problems in organizations are inevitable.Advertising We will write a custom essay sample on Consideration for Ethics and Diversity Proposal specifically for you for only $16.05 $11/page Learn More As such, it is important that the human resource department of each organization puts in place appropriate measures to deal with ethical problems facing them. It is because of this that most organizations have in place a â€Å"code of ethics† that shows the expectations of the employer with regard to ethics. The main ethical consideration affecting my division is the high rate of absenteeism by most of the workers. Upon careful review of the workers’ mas ter roll books and clocking schedule, I have noted with a lot of concern that most of the workers fail to report to work during some days of the week. This is a weighty issue because the production rate in my division has in turn significantly gone down. Upon further calculation of the hours lost by the absent employees, the Account department has noted a decline in company’s profits in the last quarter of the financial year. This prompted my department to find out the reasons behind the high rate of absenteeism. It has come to my attention that the workers are complaining of long working hours with few breaks which makes the workers very fatigued and opting to allocate themselves off-days by being absent from work. It is my humble request that a re-schedule is made on the duty rooster of the workers to incorporate more breaks during working hours as well as rotational off-days for the workers. I also request the incorporation of three shifts in my division instead of the cur rent two in order to have workers work for shorter hours. This will not only reduce the rate of absenteeism but it will boost the morale of the workers thus increasing productivity hence higher organizational profits. In addition, it will also improve the reputation of the company on the basis of corporate social responsibility. Diversity is yet another significant issue of concern in organizations. It is brought about by the differences in the culture, race, social class, age and gender of different people (Bohlander Snell, 2007). Given the increase in rate of globalisation where companies are operating in the international market, the issue of diversity is inevitable.Advertising Looking for essay on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Miscommunication is one of the diversity considerations that are prevalent in my division. Given the fact that the division currently holds people from different cul tural backgrounds who speak different languages, the workplace has in the recent past become hostile. This has significantly affected productivity since most of the time is either spent in arguments or resolving disputes instead of doing constructive work as expected. It is therefore my appeal to the Human Resource Director that proper sensitization and education is done to all the workers in order to make them accustom to different cultures and backgrounds. This will help promote an open and clear atmosphere in the workplace where each individual feels safe and comfortable. This will in turn increase productivity of the workers hence profits. In addition, the human resource department could make formal communication to all the workers regarding the common language to be used in the company in order to avoid cases of miscommunication. Reference List Bohlander, G., Snell, S. (2007). Managing human resources (14th ed.). Mason, OH:  Thomson Higher Education. Mello, J. (2006). Strate gic Human Resource Management. Westford: South-Western  Cengage Learning.

Writing for Literary Magazines

Writing for Literary Magazines 163 Literary Magazines Accepting Reprints http://publishedtodeath.blogspot.com/2016/01/163-literary-magazines-accepting.html The more I read the list the madder I got. Not at the blog and not at the author, but at the fact  123 of those 163 publications dont pay for reprints. But what you dont immediately see is most of them dont pay for original works, either. Look closely and youll see that 11 pay token payments, three admit paying pennies, 12 pay semi-pro rates when pro is six cents/word. Some admit $1, $2, $5 and $8 flat rate. You could count on one hand the ones that pay double digits, with the highest admitting paying $10 to $100. I understand that the author of the piece attempted to help writers who wanted to resell material theyd already published. Very few of them will pay you, but you will have the satisfaction of knowing that you have reached more readers. Sorry, thats still exposure, in my book in lieu of payment.   Why should you write for these publications? You shouldnt. The only way Id write for a publication such as these is if their reputation is pretty darn big and can catapult your career. I dont mean 2,500 readers. I mean tens of thousands and their name is recognizable and respected. Otherwise, youre feeding their preference to pay writers nothing and the exposure promise is worth nil. Exposure to a small group is not exposure. Why do people submit to them? A wide range of reasons. Because they think itll make them look professional. Because they think the exposure will do something for their career, not evening thinking what exposure means.  Because they hate rejection. Many would rather publish quickly or for nothing than hold out. Its possibly ego or desperation to publish, or a combination of the two. Its so much more professional, and youll respect yourself so much more, if you hold off publishing until you can climb the ladder a little bit and reach the paying publications. Yes, even in the literary world, they have markets that pay. One of the biggest myths out there is if you write for free or pennies, you are paying your dues. Um, no. You are proving to a higher calibre editor and publication that you settle for less. Most say they do not have the budget to pay. Many say they are nonprofit and cannot afford to pay. Some say they are university affiliated and, therefore, cannot afford to pay. The fact is, if you run a business (and a nonprofit or university press is a business), and you run it properly, you find the money to pay the people providing the raw materials that make it happen. The printer, the mailman, and all the players who put that publication together are getting paid. Which means you should be shamed into starving.

Taj Mahal Essay Example | Topics and Well Written Essays - 250 words

Taj Mahal - Essay Example This is to take advantage of the waterfront situation in the garden. The garden around the Tomb has two major sections; the cross-axial and the four-fold garden. The waterfront was a chief element in the design of the whole complex. At the southern far corner of the garden is the Taj forecourt, at both of its widths, are framed by two smaller courts (tombs of lesser wives of Jahan and courtyard for the tomb attendants). The mausoleum also has additional complex of quarters for merchants and tourists. This was to ensure its accessibility to the whole world. The upkeep and maintenance of the Taj Mahal was financed by the taxes from thirty villages in Agra and income from bazaars and caravanserais as ordered by imperial command. According to Koch (2005), â€Å"The Taj is built architectural theory and can be read like a literary text, once we have mastered the architectural language† (p. 137). Even though there are no texts to prove that the Mughals had written architectural theory, Koch states that his investigations have shown that the theory was laid down in the planning itself. In conclusion, the principles of Shah Jahan’s architecture, which resulted in the building of the monument, are geometric planning, symmetry, hierarchy, proportionality and uniformity, attention to details, naturalism, and symbolism. These principles and their astonishing results can be clearly seen in the complex. For instance, asymmetrical planning with a focus on bilateral symmetry can be seen in the central axis in which the main features are placed. In addition, the building was built to symbolize the power and glory of Shah Tahan. The naturalism principle can be seen through decorations of walls, ceilings, and the tombs; they are mostly decorated with flowers of different colors (Koch

Pollution of environment during, petroleum and gas synthesis Essay

Pollution of environment during, petroleum and gas synthesis - Essay Example According to Obadina (2007), oil production in Canada rose from 1.8 million barrels to 3.1 million barrels per day between 1984 and 2003. Appreciating the widespread global use of petroleum and gas products, this paper seeks to outline the environmental pollution resulting from the synthesis of petroleum and gas, giving recommendations on prevention approaches. Environmental pollution would be appreciated as the process of man introducing energy or substances into the environment that could cause hazards to the health of human beings, harm ecological systems and living resources and interfere with or damage the legitimate use of the environment (Walker et al. 2006). The petroleum industry encompasses various activities in exploration, production and transportation of about 3.5 billion tons and 2.5 giga m3 of crude oil and natural gas respectively and other derivatives around the world each year (Walker et al. 2006). After the exploration process identifies a commercially viable reser ve, the extraction of oil and gas would be carried out through drilling by use of special technologies (Vidal 2012). The extracted hydrocarbon product would then be separated into gas and liquids and dehydrated to get rid of excess water. This would then be split into various petroleum and gas products. ... The synthesis process involves exploration and production of the products of natural gas and crude oil. It encompasses the exploration and preparation of well sites, drilling, production of crude oil and gas and on-site processing. The synthesis of petroleum and natural gas products as observed by Kaiser and Pulsipher (2007) starts with the bringing to above the ground crude oil and natural gas which would in turn be processed to various products for distribution to consumers. In the process, the industry contributes to air, water and soil pollution with the components of the resources being processed and the subsequent by-products and products, the latter being the key pollutants. Natural gas would mainly contain methane with water and carbon dioxide as impurities. Crude oils vary widely in viscosity and colour but studies by Kaiser and Pulsipher (2007) indicate 79.5% to 87.3%, 10.4% to 14.8%, 0 to 8%, 0 to 2%, 0 to 0.1% and 0 to 0.005% carbon, hydrogen , sulphur, oxygen, nitrogen a nd metals composition respectively. The main constituents are hydrocarbons of varied types and molecular masses with between 1 and 60 carbon atoms. The synthesis of gas involves processing natural gas by dewatering and removing its acid components such as hydrogen sulphide followed by eventual removal of carbon dioxide. Despite taking appropriate precautions against environmental pollution, Obadina (2007) appreciates that accidents occur periodically in the course of producing petroleum and gas. Air pollution in the process of petroleum and gas synthesis occurs through combustion emissions, fugitive emissions, process emissions, secondary emissions and from handling and storage of petroleum liquids

Drive train, motor, control systems ( help in writing some pages on Coursework

Drive train, motor, control systems ( help in writing some pages on these parts and relate them to my simple design ) - Coursework Example For this electric skateboard, it is expected that the front pad will be used for acceleration while the rear pad shall be used in the braking system. Both pads will be connected at the center that shall comprise of an electric circuit board to be used in powering the system, as shown in the figure below. Normally, the controller will control the voltage coming from the batteries to the motors, except for when batteries are dead. Therefore, the regenerative power shall be used in controlling the voltage flow which will allow for the recharging of the batteries in a vice versa way without needing to plug the batteries to an external power source. The regenerative technique to be employed in this design shall work through a rotational basis of its mechanical energy; hence, re-populating the batteries. During the rotational process of the motor wheels, there is mechanical energy that is released. Through the regenerative technique, this energy shall be channeled back into the battery system and into the motor through the axles. Therefore, as the mechanical energy goes through the axle and motor again, it causes a rotational movement inside of the motor; thus, form an electrical field in the motor. The created electric field will then push back the mechanical energy to the batteries through the controller. In this stage, since the controller was responsible for gauging the electric flow out of the batteries, it would also regulate the inflow of the mechanical energy caused by the rolling of the wheels during skating, into the battery system, by raising the level to feed the batteries again. Taking on the form of a PID system, the controller can further take on the form of a remote sensor gadget clutched in the hands of the user to apply the start of the board, acceleration and deceleration speeds of the board. The standard recharging time for the batteries

Effect Of Substrates On The Respiration Of Yeast Biology Essay

Effect Of Substrates On The Respiration Of Yeast Biology Essay The aim of this investigation is to examine what effects different substrates have on the respiration of yeast. I will investigate this by measuring the amount of carbon dioxide evolved during anaerobic respiration. Pilot Experiment: Before we could test which carbohydrate and type of yeast produced more carbon dioxide, we had to standardise the other variables of this experiment; temperature and concentration. Therefore, in order to find the optimum conditions we carried out a pilot experiment. In this experiment we used a range of temperatures from 10ËÅ ¡ to 60ËÅ ¡C and three different concentrations of carbohydrate 1%, 5% and 10%. The experiment was carried out as a group experiment with everyone being allocated a different temperature and concentration to test. It was carried out over a standardised period of 5 minutes. The rationale for conducting this pilot experiment was that enzymes are biological catalysts that are made up of globular proteins which are activated to work by temperature. They exist in the yeast and our bodies and therefore work best at 40ËÅ ¡C, however, they denature soon after and so our body temperature is kept at 37ËÅ ¡C to ensure this does not happen. Denaturation is the irreversible loss of 3D structure of enzymes and can be caused by excess heat or a change in PH. According to the Collision theory however, in order for a reaction to take place a certain level of energy, called the activation energy, must be reached. This energy needs to be reached by the particles colliding in the right way and fast enough, so a reaction can take place. By giving the particles more energy it encourages more to collide therefore the activation energy can be reached and a reaction can happen. The kinetic theory explains the effect of temperature, volume and pressure on the number of collisions. The theory states that if temperature is increased the particles gain more energy and there are more collisions in a given time. Similarly, increasing the concentration means than there is a higher chance of a collision happening because there are more particles in a given volume. If the concentration of carbohydrate/yeast is increased there are more enzymes known as z ymase, produced. This means there are more active sites for the carbohydrate substrate to attach to and the reaction happens faster. Therefore a balance must be reached between temperature so it does not denature the enzymes but is high enough to activate a reaction. Also, having a highly concentrated solution is seemingly advantageous but this can cause osmotic problems, so another balance must be reached, as to avoid this problem, but not to discourage a reaction. Apparatus: Beehive shelf Clamp Stand 50ml conical flask Trough Clamp Thermometer 50cm3 measuring cylinder Heat proof mat Spill 500ml beaker Bunsen burner Delivery tube with bung Tripod Gauze Stopwatch 25cm3 of bakers yeast 25cm3 of sucrose Electronic water-bath Method: 25cm3 of bakers yeast and 25 cm3 of sucrose was mixed together and preheated at the required temperature for 15 minutes in an electronic water-bath. 400cm3 of water was preheated to the same temperature as the yeast using the Bunsen burner. The trough was filled with water and a measuring cylinder was inverted by filling it with water then pressing a piece of paper onto the top to prevent any air bubbles from getting in. The beehive shelf was placed in the centre of the trough and the measuring cylinder was clamped in place, with the top resting on the beehive shelf, the hole being directly under it. The yeast was placed in the preheated water-bath and the bung from the delivery tube was replaced. The delivery tube was inserted into the hole in the side of the beehive shelf and the stop watch was started. Thirty seconds was timed then the beaker with the yeast/carbohydrate mix was swirled for 5 seconds to mix the yeast/carbohydrate. This was repeated every thirty seconds for fifteen minutes, with readings being taken at three five minute intervals. The correct temperature in the water bath was maintained by adding more hot water to it throughout the experiment. BACKGROUND INFORMATION: YEAST Saccharomyces cerevisiae, also known as yeast, is a micro organism that uses saprophytic digestion to break down substrates. This is achieved through releasing specific enzymes to break down specific substrates, but if yeast does not contain a certain types of enzyme then it cannot break down its substrate. The more the enzyme of a particular substrate, the faster the rate of breakdown and therefore the more CO2 is produced. This will help me to test how much CO2 each substrate produces. Yeast can also respire aerobically and anerobically depending on the availability of O2. If there is plentiful of O2 then yeast would respire aerobically with sugars, producing H2O and CO2 as waste products. However, if no oxygen is available then the fermentation would occur which converts sugars into CO2 and ethanol. RESPIRATION Respiration is the process by which energy is released energy from glucose in the presence of Oxygen, forming carbon dioxide and water as waste products. Glucose releases energy in a series of reactions that take place inside components of the cell. The stages are briefly explained below: GLYCOLYSIS To get the sugar in a more reactive form it is produced to fructose-1,6-bisphosphate by the addition 2 phosphate molecules. This process is a phosphorylation reaction. The fructose-1,6-bisphosphate is then broken down into 2 molecules of glyceraldehydes-3-phosphate, which comprises of 3C each. The glyceraldehydes-3-phosphate converted into pyruvate via the oxidation process where each GAL3P molecule releases 2 hydrogen ions and 2 electrons. The electrons are then transferred to NAD to produce NADH (reduced NAD) and the energy is used to produce 4ATP from 4ADP and 4Pi. Finally there is a net yield of 2 molecules of ATP, and 2 molecules of pyruvate which is used in the link reaction and 2 molecules of reduced NAD which carries on to the link reaction. LINK REACTION In the link reaction the 2 molecules of pyruvate leave the cytoplasm of the cell and enter the mitochondrial matrix. This is an oxidation reaction where 2 NAD molecules oxidise 2 pyruvate molecules into 2 acid molecules. These 2 molecules of acetic acid then go on to combine with 2 coenzyme-A molecules to form Acetyl Co enzyme A. in the end of this stage 2 molecules of reduced NAD form, 2 molecules of CO2 is lost and most importantly, Acetyl Co enzyme A is formed through the conversion of pyruvate. This is then used in the next stage of respiration. KREBS CYCLE At the start Acetyl Coenzyme A , combines with Citrate Synthase an enzyme as well and a 4 carbon molecule called oxaloacetate, forming Citrate. Then, Citrate goes through the process of oxidative decarboxylation which forms a 5 carbon molecule called oxoglutarate.at this point NADH is produced and CO2 is removed. In the latter stages of the krebs cycle, the oxoglutarate is changed into a 4 carbon oxaloacetate molecule. NADH is made and 1 molecule ATP is also made. The volume of CO2 that is produced in the krebs cycle is important as this is the dependant variable. ELECTRON TRANSPORT CHAIN In this stage all of the NADH and FADH that has been produced in the previous stages is converted into ATP. This takes place in the cristae of the mitochondria. The NADH and FADH electrons move. When the electrons pass from one carrier to another, a series of reduction and oxidation reactions take place which releases energy in the process. This energy is used to pump H+ ions from the matrix into the intermembrane space, thus creating a gradient where the concentration of the H+ ions in the intermembranal space is higher than it s in the matrix. The inner membrane contains enzymes called ATP Synthase and The H+ ions diffuse through these enzymes causing energy to be released which is used to synthesise ATP through phosphorylation. The process is called because the final terminal electron acceptor is oxygen which picks up the electrons from the chain and the H+ ion from the matrix to form H20 as a waste product. This reaction is catalysed by the enzyme Cytochrome Oxidase For every NADH which enters the chain and is oxidised by NADH dehydrogenase, 3 ATP are produced. For each FADH that enters the chain, 2 molecules of ATP are made. ENZYMES Enzymes are proteins that can effectively increase the rate of a reaction by lowering the required energy (activation energy) needed in order for the reaction to occur. Enzymes have a tertiary structure which decides the shape of the active site. The substrate must be specific to the active site because if they were not complementary to each other, then the substrate can no longer bind to the active site, thus the enzyme substrate complex does not form. The performance of enzymes can be affected in several ways some of which I have explained below. TEMPERATURE An increase in temperature will cause an increase in the rate of reaction because both the enzyme particles and substrate particles have gained kinetic energy. This will result in the particles to move faster, thus increasing collision frequency and the numbers of successful collisions as the particles have the required activation energy. If the temperature rises above the optimum temperature then the enzymes can become denatured. This happens because the enzyme molecule vibrates more causing the weak hydrogen bonds (holding the 3D structure of the enzyme together) to break. This eventually leads to the shape of the active site being altered. Consequently, the substrate will not be able to bind with the substrate as the shape of the active site is no longer complementary so the substrate enzyme complex can not form. This is important in my experiment because if the yeast (enzyme) was to become denatured then it would not be able to bind with the substrate (e.g. glucose) and the react ion would not be catalysed, preventing any CO2 from being formed. I must ensure that temperature is kept constant throughout. PH Another factor which can affect enzymes is pH. Enzymes also have an optimum pH which is pH enzymes work best at. Changing the pH can change the tertiary structure due to the number of H+ ion in an acid or the OH- ions in an alkali. These ions disrupt the hydrogen and ionic bonds between -NH2 and -COOH. This will cause the tertiary structure to break down and changing the active site in the process. Once again, the substrate will no longer be able to bind with the active site, hence no substrate enzyme complex will form. I intend to use a buffer solution which will resist any changes in pH. SUBSTRATE CONCENTRATION Increasing substrate concentration increases enzyme activity as they are more molecules to occupy the active site, thus a faster reaction. If more enzyme substrate complex forms then more CO2 will be produced. However this is occurs only for a certain period until all the active sites are saturated with substrates. Therefore an increase in substrate concentration will not result in a increase in the rate of reaction. Carbohydrates such as glucose and sucrose are too soluble and reactive to be stored as they come as they would present osmotic problems and so they are stored in much more complex, insoluble structures known as polysaccharides. Polysaccharides are macromolecules formed by the joining of many monosaccharides together in condensation reactions. There can be more than 3000 repeating units in a chain, joined by glycosidic bonds, forming many complicated structures, one being starch. Starch is a polymer of alpha glucose, where the hydroxyl group is below the ring, and is made up of 30% amylose and 70% amylopectin. Amylose is a long polymer consisting of over 300 monomers joined by 1,4 glycosidic bonds. Amylopectin gives starch its compact store of energy property as it consists of monomers of glucose in 1,4 and 1,6 linkages causing the chain to branch out. Amylopectin can contain several thousand monomers and forms a coiled up structure which is a valuable store of energy for living organisms. Starch is suited to storage as it is insoluble in water and therefore cannot move out of the cells during osmosis. However, it can easily be broken down to produce simpler carbohydrates by a hydrolysis reaction via the enzyme zymase produced by yeast. It is broken down firstly into maltose then into glucose then into carbon dioxide and ethyl alcohol. In this experiment we used two different types of the Saccharomyces Cerevisiae (saccharo meaning sugar and myces meaning fungus) sub- species of yeast to respire the carbohydrates; bakers and brewers. Both are made up of small cells, separated by walls of cellulose with a living organism inside called a protoplasm. Yeast cells reproduce by budding, and do so every two to three hours under ideal conditions. All types of yeast will respire carbohydrates to make energy in order to reproduce. Therefore, when sugar is added to the Brewers yeast, the yeast cells secrete the enzyme zymase to begin respiring the carbohydrate substrate according to the following equation: C6H12O6 + 6O2 = 6CO2 + 6H2O + 2900kJ Glucose + Oxygen = Carbon + water + Energy dioxide This is known as aerobic respiration due to the presence of oxygen, (defined as free or molecular oxygen atoms participating in the respiratory breakdown of organic substances). Brewers, however, are more interested in anaerobic respiration, (defined as when the respiratory breakdown of organic substrates takes place without the participation of free or molecular oxygen atoms). In yeast, anaerobic respiration is sometimes called fermentation. This happens when the enzyme secreted by yeast, known as zymase, catalyses the break down of glucose to produce ethyl alcohol, in abundance and less carbon dioxide, (which they use to create the fizz). It happens that starch is broken down to form maltose, maltose is broken down into glucose and glucose breaks down according to either the aerobic or anaerobic respiration equation, depending on the conditions. Therefore, Brewers use anaerobic (airtight) conditions and most of the reaction happens according to this equation: C6H12O6= 2C2H5OH + 2CO2 + 84kJ Glucose = Ethyl + Carbon + Energy Alcohol dioxide This produces the desired product i.e. the alcohol and the bi- product of carbon dioxide, which we collect in this experiment. The Bakers yeast is very similar to Brewers except it is used for a slightly different commercial purpose i.e. bread making. The yeast respires aerobically in this process as the main function is to inflate the dough to make it softer, and therefore, the desired product comes from the first equation: C6H12O6 + 6O2 = 6CO2 + 6H2O + 2900kJ Glucose + Oxygen = Carbon + water + Energy dioxide The reaction also requires nitrogen from the air to act as a nucleating site for the carbon dioxide to form bubbles against and therefore produces a good yield of carbon dioxide. In most processes where yeast is used, it will have been cultivated to suit that purpose, e.g. to produce more carbon dioxide or more ethyl alcohol, therefore there will often be a big difference between the behaviour of the two yeasts. We can test this in this experiment as the variable of the condition (whether it is in aerobic or anaerobic conditions) is being standardised by both the experiments being carried out in aerobic conditions. This is due to the fact that there is a good oxygen supply whilst the yeast is preheated and during gas collection, when the system is air tight, it is not left long enough for it to use up the oxygen and respire anaerobically. This is a favourable condition for maximum CO2 production however as, according to the equation, there are six moles of CO2 produced aerobically and only two moles of gas produced anaerobically. Aim: The aim of the pilot experiment is to investigate the optimum temperature and concentration of carbohydrate, that, when respired with yeast, produces the biggest volume of carbon dioxide. PLANNING: THE DEPENDANT AND INDEPENDENT VARIABLE: The dependant variable will be the volume of C02 produced during respiration and the independent variable will be the substrates that I decide to use in the experiment. These are Glucose, Fructose, Maltose, Lactose and Sucrose. NULL HYPOTHESIS: The type of carbohydrate being respired will have no significant effect on the amount of carbon dioxide produced in a given time. HYPOTHESIS: In accordance with the information that has been gathered, the following hypotheses were derived; Hypothesis one: When respired by yeast, different types of carbohydrates will produce different amounts of CO2. I believe this because glucose is a monosaccharide which consists of one molecule, sucrose is a disaccharide, which consists of two molecules and starch is a polysaccharide, consisting of many molecules. This means they all have different molecular structures and therefore will break down with different levels of ease. In order to keep an open mind however, the following null hypothesis was also noted; Null hypothesis one: The type of carbohydrate being respired will have no significant effect on the amount of carbon dioxide produced in a given time. The second hypothesis was theorised relating to the variable of the yeast: Hypothesis two; Different types of yeast will produce different volumes of CO2. I predict this because the commercial purposes of Bakers and Brewers yeasts are different and therefore special cultivations might have made the yeast better designed for one purpose than the other. Again a null hypothesis was also adopted; Null hypothesis two: There will be no significant difference between the amount of carbon dioxide produced by the Bakers and the Brewers yeast. Apparatus: The following apparatus will be used when conducting the experiment: Beehive shelf Trough 200cm3 measuring cylinder 500ml beaker Tripod 25cm3 of bakers yeast 25cm3 of brewers yeast 25cm3 of sucrose 25cm3 of glucose 25cm3 of starch Bunsen burner Gauze Heat proof mat Rubber tubing 50ml conical flask Thermometer Spill Delivery tube with bung Stopwatch Clamp Clamp stand METHOD: 25cm3 of the desired yeast and 25 cm3 of the desired carbohydrate was mixed together and preheated at the required temperature for 1 hour in an electronic water-bath. 400cm3 of water was preheated to the same temperature as the yeast using the Bunsen burner. The trough was filled with water and a 200cm3 measuring cylinder was inverted by filling it with water then pressing a piece of paper onto the top to prevent any air bubbles from getting in. The beehive shelf was placed in the centre of the trough and the measuring cylinder was clamped in place, with the top resting on the beehive shelf, the hole being directly under it. A small piece of rubber tubing was inserted into the beehive shelf through the hole in the side, up into the inverted cylinder, and the other end was attached to the delivery tube. The yeast was placed in the preheated water-bath and the bung from the delivery tube was replaced. The delivery tube was inserted into the hole in the side of the beehive shelf and the stop watch was started. Thirty seconds was timed then the beaker with the yeast/carbohydrate mix was swirled for 5 seconds to mix the yeast/carbohydrate. This was repeated every thirty seconds for fifteen minutes, with readings being taken at three five minute intervals. The correct temperature in the water bath was maintained by adding more hot water to it throughout the experiment. This was repeated using each different type of sugar with each different type of yeast: Bakers glucose, Bakers sucrose, Bakers starch, Brewers glucose, Brewers sucrose, Brewers starch. Control of the variables of the method: In order for this experiment to be run fairly there are certain controls that should be taken into consideration: -The temperature must be kept constant by refilling the water bath with warm water. -The yeast/carbohydrate solution should be pre-mixed and preheated for the same amount of time i.e. one hour, in each experiment. -The gas should be collected at three 5 minute intervals for each condition. -The solution should be swirled every thirty seconds for five seconds to mix the yeast and carbohydrate together. -The temperature and concentration should be the same for each experiment; 35ËÅ ¡C and 7.5% respectively. -The amount of yeast to carbohydrate should be kept constant i.e. 25cm3 of each. -The same method should be used; the rubber tube, collection of gas in an inverted measuring cylinder, as certain ways are more accurate than others. Control of the measurements: When taking measurements, the following points should be noted: -When measuring the gas, measure to the bottom of the meniscus of the water. -Make sure the measuring cylinder is perpendicular to the clamp stand to ensure that the water lies at the correct level. -When timing, do not shake at 30 seconds by the stopwatch because 5 seconds is added on each time (while it is shaken) and therefore by the sixth minute or so it will require shaking as soon as it has been shaken. -Keep a constant check on the thermometer to ensure the temperature does not drop. Results: A summary table to show volume of gas produced by bakers and brewers yeast with three different carbohydrate substrates: Amount of CO2 produced in cm3 in fifteen minutes in each condition The table above shows the results of our practical, including my own, highlighted in blue. The average volume of gas collected in each separate condition is shown and reveals that most gas was produced in the brewers glucose experiment, at 115.6 cm3 and the condition that produced the lowest average was brewers starch, at 9.4. The range of the averages was 94.3, showing there was a large difference between the values. Analysis of the results: The graph above clearly shows the difference between the three carbohydrate substrates to be significant. It is clear that the order for most CO2 produced is glucose, sucrose, starch, the greatest difference being between sucrose and starch. It also appears that the results are closer together for bakers yeast than for brewers. The average for bakers yeast was slightly higher at 74cm3 than the Brewers at 71.2cm3. Students T test: The descriptive statistics above, however, only tell us what has been found, they do not tell us the probability of achieving the scores we did, and therefore an inferential students t test was applied. The students t test was devised to analyse smaller sets of samples; to determine whether the results were due to chance or the manipulation of the independent variable. It works out that if the difference between the variance of the sum of the two means (of the two samples) is greater than twice the standard deviation of the difference between the means (of the two samples) then this is unlikely to have of occurred by chance, and therefore our data is significant. Glucose v Sucrose bakers: t-Test: Two-Sample Assuming Equal Variances Variable 1 Variable 2 Mean 103.6667 93.25641 Variance 927.0702 595.5641 Observations 39 39 Pooled Variance 761.3171 Hypothesized Mean Difference 0 df 76 t Stat 1.66608 P(T