Wednesday, October 30, 2019

Goodbye Mr. Chips by James Hilton Essay Example | Topics and Well Written Essays - 750 words

Goodbye Mr. Chips by James Hilton - Essay Example A true educator will not say "I teach English, Math, German etc." but rather, "I teach children/pupils/students..." As Kathie Chipping puts it so well, "schoolmastering is so important, don't you think To be influencing those who are going to grow up and matter to the world..." (Hilton, 35). On the surface, the style and methods of the old teacher appear conservative and conventional, like all good educators, he is open to change, when it is for the good, and not merely for its own sake. By incorporating new ideas, using humor, gentleness and wisdom, better results are achieved. By earning respect and love, such a teacher then becomes an inspiration and finally finds contentment and self-worth in knowing they have done a good job. Evidence of this is shown in the achievements of his pupils, his 'boys': Conflict: The outward manifestation of the principal conflict is the passionate argument between Chips and Ralston, the young headmaster. The underlying differences are those of values and motivation. On one side, there is Ralston, efficient, ruthless, ambitious, 'modern' and materialistic. On the other, is Chips, representing years of tradition, old fashioned teaching methods, using a gentlemanly, timeless approach to what pupils should be learning, and with a genuine dedication to their personal development. Ralston's stance can be illustrated thus, when trying to get rid of Chips: "Your boys don't learn even what they're supposed to learn. None of them last year got through the Lower certificate." (Hilton, 75). In seeking to make money, and a reputation for himself, Chips perceived him to be "running Brookfield like a factory, a factory for turning out a snob-culture based on money and machines." (Hilton, 76). He detested the results of such activity, as "Vulgar..ostentatious...all the hectic rotten-ripeness of the age...no sense of proportion." (Hilton, 77). Their personalities and views on educational methods reflect opposing values. Ralston demands 'modernity', and changes which seek to show his perceived talents in a favorable light, not because it is better. Chips subscribes to the view that 'if it ain't broke, don't fix it', why make change for its own sake, certificates do not make better human beings. In the historical context, the conflict occurs in a period of social change. Victorian morality had given way to a frenetic, rich, Edwardian decadence. But a huge gap still existed between the rich and the poor. While Ralston courted the rich for their money and power, Chips, influenced by the socialist, idealist and democratic beliefs he had absorbed from Kathie, hoped for change which 3. would encompass education for all, "a

Monday, October 28, 2019

Cognitive Dissonance in Marital Satisfaction Essay Example for Free

Cognitive Dissonance in Marital Satisfaction Essay Most people get married because they love their partner. They like the way they are with each other, honest, loving, understanding, fun, etc. Some are arranged marriage as they are unable to find the love of their life. However some get divorced as they are no longer compatible and they get turn off very easily. They are frustrated and bored. For those who want to continue to stay in an unhappy marriage due to many reasons such as the kids, their reputation, family, etc. as an alternative to divorce will ignore their feelings and convince themselves that the marriage is working well. They tend to adopt a cheerful attitude. They offered patience and understanding to make it appear as if the marriage was happy. Cognitive Dissonance is a feeling of discomfort caused by performing an action that is inconsistent with one’s belief (Franzoi, 2009, p.162). Basically it is a disagreement between ones personal beliefs and ones actions. It is the difference between how they would like to be and how they are. Cognitive dissonance is an aversive drive that causes people to (1) avoid opposing viewpoints, (2) seek reassurance after making a tough decision, and (3) change private beliefs to match public behavior when there is minimal justification for an action. Self-consistency, a sense of personal responsibility, or self-affirmation can explain dissonance reduction. (Socio-psychological tradition) (Festinger, as cited in Griffin, 2011) How can we observe â€Å"cognitive dissonance† in Marital Satisfaction? In Marital Satisfaction, we can observe cognitive dissonance in 3 different areas: Behavioural, Mental Emotional. Behavioural Observation There will be marital stress. They wear ‘masks’ at home and they will feel exhausted as they struggle with their life. Their journey will be full with pain and grief. They pretend things are okay in their marriage when there is distance. They say nothing is wrong when their feelings are truly hurt. They don’t necessarily lie to their spouse; they just shade part of the truth. They don’t feel comfortable being their true self with their spouse because they are afraid of judgment or mockery. They will purchase self-help books, confessed their feelings to a marriage counsellor or friends that they can trust. They offer patience and understanding to the spouse to make it appear as if the marriage was happy. They will smile and put on a happy face especially in front of the children to avoid them from knowing but will let out their true feelings and cry it out at night. They will lay awake at night and try to rationalize things that they have done so that it is acceptable. Their physical health will be affected as they are facing with too much stress in their life. They too may run into problem as they seem to be lying to themselves. Even though cognitive dissonance can resolve internal anxiety, it can also reinforce future bad decisions or behaviours e.g. lying Mental Observation Their mind will be filled with thoughts of whether they are doing the right thing. They feel turned off with what they are doing. They could not be themselves and their anxiety in wanting to be themselves and do what they like to do increases. They have sleepless nights thinking the sacrifices that they have made to make others happy when they themselves are not happy.. The dissonance caused by such contradictions will also create an unpleasant mental tension, which can range from minor irritation to deep pain as long as it continues. They are unable to relax and feel comfortable until they have been able to eliminate the dissonance or at least reduce it considerably. They can use Self-justification to escape from the discomfort. This is also a major threat to marital satisfaction because both partners tend to justify their behaviour in a way that allows them to be right while either explicitly or implicitly making their partner wrong. Emotional Observation They will be unhappy or semi-happy. They are unwilling to admit their frustration, acknowledge their crumbling marriage and obtain a divorce due to their culture, religion or the children. They constantly experienced a lingering feeling of doubt about the relationship. With that, they attempt to change their opinions to coincide with the behaviour they felt was expected of them and adopted a cheerful attitude towards their marriage to convince themselves that the marriage is working well. On the other hand, this can also make them become stronger in facing any challenges in their life. If they are optimistic, they will make the best of the marriage as the decision is in their hands. They are not able to be the person that they are but who they are might not be the best person. Cognitive dissonance can also reinforce future good decisions or behaviours e.g. more understanding, patient, increase communication between spouse, etc. Conclusion Successful marriage is not about getting their partner to do what they want; its about being who they are. This aspect of cognitive dissonance isnt bad; it can act as a motivation to be true to their deepest values, by making them behave in more loving and compassionate ways. It can help them change the unhealthy attitudes and behaviours. However, cognitive dissonance is most painful to people when some significant part of their beliefs about themselves is threatened. This usually occurs when they have done something that is inconsistent with their image of themselves. If a person has a fairly positive self-concept, believing herself reasonably smart, competent, and moral, she will use self-justification as a way to preserve her positive self-image.

Saturday, October 26, 2019

Emma - Romantic Imagination :: essays research papers fc

Jane Austen’s Emma and the Romantic Imagination "To see a world in a grain of sand And a heaven in a wild flower Hold infinity in the palm of your hand And eternity in an hour." —William Blake, ‘Auguries of Innocence’ Imagination, to the people of the eighteenth century of whom William Blake and Jane Austen are but two, involves the twisting of the relationship between fantasy and reality to arrive at a fantastical point at which a world can be extrapolated from a single grain of sand, and all the time that has been and ever will be can be compressed into the space of an hour. What is proposed by Blake is clearly ludicrous—it runs against the very tide of reason and sense—and yet the picture that the imagination paints of his verse inspires awe. The human imagination supplies the emotional undercurrents that allows us to see the next wild flower we pass on the side of the road in an entirely different and amazing light. In Austenâ₠¬â„¢s Emma, the imagination is less strenuously taxed because her story of sensibility is more easily enhanced by the imagination, more easily given life than Blake’s abstract vision of the great in the small because Emma is more aesthetically realistic. However, both rely on the fact that "[t]he correspondence of world and subject is at the center of any sensibility story, yet that correspondence is often twisted in unusual and terrifying shapes," (Edward Young, 1741). The heroine of Austen’s novel, Emma Woodhouse, a girl of immense imagination, maintains it by keeping up with her reading and art because, as Young contends, these are the mediums through which imagination is chiefly expressed by manipulating the relationships between the world and the subject at hand. However, even in this, Emma’s imagination falls short. "The soul might have the capacity to take in the ‘world’ or the ‘atom’ if it weren’t for the b ody’s limitations getting in the way," (Joseph Addison, 1712). As Addison supposes, the limitations of Emma’s body keeps her from seeing the truths that her soul, if let free, would show her. One of these is that Frank Churchill, a handsome and well-bred man, is insincere and fake, while Mr. Knightley truly loves her like no other. In Emma’s love theme, Austen shows us how emotions and imagination can augment each other. "[I]t was†¦sensibility which originally aroused imagination;†¦on the other hand†¦imagination increases and prolongs†¦sensibility," (Dugald Stewart, 1792). Emma - Romantic Imagination :: essays research papers fc Jane Austen’s Emma and the Romantic Imagination "To see a world in a grain of sand And a heaven in a wild flower Hold infinity in the palm of your hand And eternity in an hour." —William Blake, ‘Auguries of Innocence’ Imagination, to the people of the eighteenth century of whom William Blake and Jane Austen are but two, involves the twisting of the relationship between fantasy and reality to arrive at a fantastical point at which a world can be extrapolated from a single grain of sand, and all the time that has been and ever will be can be compressed into the space of an hour. What is proposed by Blake is clearly ludicrous—it runs against the very tide of reason and sense—and yet the picture that the imagination paints of his verse inspires awe. The human imagination supplies the emotional undercurrents that allows us to see the next wild flower we pass on the side of the road in an entirely different and amazing light. In Austenâ₠¬â„¢s Emma, the imagination is less strenuously taxed because her story of sensibility is more easily enhanced by the imagination, more easily given life than Blake’s abstract vision of the great in the small because Emma is more aesthetically realistic. However, both rely on the fact that "[t]he correspondence of world and subject is at the center of any sensibility story, yet that correspondence is often twisted in unusual and terrifying shapes," (Edward Young, 1741). The heroine of Austen’s novel, Emma Woodhouse, a girl of immense imagination, maintains it by keeping up with her reading and art because, as Young contends, these are the mediums through which imagination is chiefly expressed by manipulating the relationships between the world and the subject at hand. However, even in this, Emma’s imagination falls short. "The soul might have the capacity to take in the ‘world’ or the ‘atom’ if it weren’t for the b ody’s limitations getting in the way," (Joseph Addison, 1712). As Addison supposes, the limitations of Emma’s body keeps her from seeing the truths that her soul, if let free, would show her. One of these is that Frank Churchill, a handsome and well-bred man, is insincere and fake, while Mr. Knightley truly loves her like no other. In Emma’s love theme, Austen shows us how emotions and imagination can augment each other. "[I]t was†¦sensibility which originally aroused imagination;†¦on the other hand†¦imagination increases and prolongs†¦sensibility," (Dugald Stewart, 1792).

Thursday, October 24, 2019

please Let Us Skate :: essays research papers

"Please Let Us Skate" "Hey you guys! Skating is prohibited in this park. Would you please be so kind and leave. Thanks for cooperating and have a great day" exclaimed a security guard who worked for the park. Apparently the security guard's idea of a great day in the park means monk-like silence. With an area restricted on roller-blading and skate-boarding, we are forced to skate elsewhere. "As a security guard for the past year, I want to keep the park as safe as possible," says the security guard. "Skaters get in the way. Skaters are crashing into other people who are just here to relax. It is very dangerous and it is prohibited in this park." Well, for one thing, roller-blading hasn't been accepted as a sport here in Hong Kong and will continue to be that way unless something is done about the places where skaters are allowed to skate. There are many places where cycling is allowed but where skating is not allowed. Why is this? Maybe it is because people here don't feel that we skaters deserve the right any cyclists, or anything on wheels, have. All we ask for is a decent place to skate where we wouldn't have our rights denied. I have been skating for two and a half years now. Until recently, I have started to skate with a couple of my friends whenever we have the time to. There has never been a time where we haven't been stopped and kicked out. This has been very irritating for us and we still don't understand why we're not welcomed at any parks, other than the answer we always get, "You might hurt someone". Personally, I think the only people that are going to get hurt are the ones with the skates, us. Another big problem we Roller-bladers face here in Hong Kong is the fact that we are not only rejected by society but also by other skaters, skate- boarders. There are many places to skate here in Hong Kong and of those, 90 percent are dominated by local skate-boarding cliques. They don't like the idea of mixing with those have an extra 4 wheels stuck to their feet and usually get rid of us their way. Skate-boarders and Roller-bladers simply cannot get along. Personally, I enjoy the fine art of Roller-blading and

Wednesday, October 23, 2019

Slip or Trip Essay English

On August 13, 2013, at approximately 1:37 A. M. , Sparks police department received a call that an accidental death has occurred. Queenie Volupides, the wife of the deceased Arthur Volupides, claims that her husband slipped and fell on the stairs while he was coming down to the kitchen for another alcoholic beverage. She says that she wasn’t home when the incident occurred. She states that she was at a country club that was hosting a party and that when she arrived home (at approx 1:15 A. M. ) she found him lying on the stairs dead.However, the crime scene shows many inconsistencies within Queenie’s Story. Deputy Blank arrived on the scene at around 2:15 A. M, responding to Volupides 911 call. After viewing he crime scene, Deputy Blank noticed that in Arthur’s left hand there was an unbroken glass (presumably what he was drinking alcohol in). This raises many suspicions. If Arthur had tripped and fell down the stairs, then the glass shouldn’t be in his han d unbroken but instead somewhere in the vicinity of his body shattered.This is because, usually, when somebody is falling down the stairs they will drop whatever is in their hands to try to grab a rail or really anything to try to regain balance. Also, the glass was found in his left hand and when somebody is intoxicated, they can barley stand let alone attempt to hold a glass in their non-dominant hand. Also, Deputy Blank noticed that Queenie had been cooking something when officers arrived. While she was expecting guests, the body of Arthur was just feet away from the stove. Most people would have noticed the dead body and called the police right away.Responding officers have theorized that the pan she was cooking in is the murder weapon. Upon further inspection, Blank also realized that Arthur was still in his formal suit when he was killed. When Questioning Queenie about this she says that he was supposed to go to the party with her but before she left they had gotten into a fig ht. That explains why he had gotten into his suit but yet still doesn’t explain why he had stayed in his suit. If Arthur had been home for more than ten minutes, then he probably would have taken off at least his shoes, robe, and tie.Suspicious where near confirmed when Arthur’s autopsy came back. It did confirm that Arthur had had a high blood alcohol level. It also concluded that he had died from a wound on his head. If Arthur had really fallen down that flight of stairs then there would have been more injuries than that of the wound on this head. Maybe if he had a broken bone or was bruised then Queenie’sâ€Å" falling down the stairs† story might have been believable. Our recommendation is that Queenie Volupides is charged with Arthur Volupides Homicide.

Tuesday, October 22, 2019

A Hidden Ocean Might Exist Under Ganymedes Icy Surface

A Hidden Ocean Might Exist Under Ganymede's Icy Surface When you think about the Jupiter system, you think of a gas giant planet. It has major storms whirling around in the upper atmosphere. Deep inside, its a tiny rocky world surrounded by layers of liquid metallic hydrogen. It also has strong magnetic and gravitational fields that could be obstacles for any kind human exploration. In other words, an alien place.   Jupiter just doesnt seem like the kind of place that would also have tiny water-rich worlds orbiting around it.   Yet, for at least two decades, astronomers have suspected that the tiny moon Europa had subsurface oceans. They also think that  Ganymede has at least one (or more) oceans as well.  Now, they have strong evidence for a deep saline ocean there. If it turns out to be real, this salty subsurface sea could have more than all the water on Earths surface. Discovering Hidden Oceans How do astronomers know about this ocean? The latest findings were made using the Hubble Space Telescope to study Ganymede. It has an icy crust and a rocky core. What lies between that crust and core have intrigued astronomers for a long time. This is the only moon in the entire solar system that is known to have its own magnetic field. Its also the largest moon in the solar system. Ganymede also has an ionosphere, which is lit up by magnetic storms called aurorae. These are mainly detectable in ultraviolet light.   Because aurorae are controlled by the moons magnetic field (plus the action of Jupiters field), astronomers came up with a way to use the motions of the field to look deep inside Ganymede. (Earth also has aurorae, called informally the northern and southern lights).   Ganymede orbits its parent planet embedded in Jupiters magnetic field. As Jupiters magnetic field changes, the Ganymedean aurora also rock back and forth. By watching the rocking motion of the aurorae, astronomers were able to figure out that theres a large amount of salt water beneath the crust of the moon.The saline-rich water suppresses some of the influence that Jupiters magnetic field has on Ganymede, and that is reflected in the motion of the aurorae.   Based on Hubble data and other observations, scientists estimate the ocean is 60 miles (100 kilometers) deep. Thats about ten times deeper than Earths oceans. It lies under an icy crust thats about 85 miles thick (150 kilometers). Beginning in the 1970s, planetary scientists suspected the moon might have a magnetic field, but they didnt have a good way to confirm its existence. They finally got information about it when the  Galileo spacecraft took brief snapshot measurements of  the magnetic field in 20-minute intervals. Its observations were too  brief to distinctly catch the cyclical rocking of the oceans secondary  magnetic field. The new observations could only be  accomplished with a space telescope high above Earths atmosphere, which  blocks most ultraviolet light. The Hubble  Space Telescope Imaging Spectrograph, which is sensitive to ultraviolet light given off by the auroral activity on Ganymede, studied the aurorae in great detail.    Ganymede was discovered in 1610 by astronomer Galileo Galilei. He spotted it in January of that year, along with three other moons: Io, Europa, and Callisto. Ganymede was first imaged up-close by the Voyager 1 spacecraft in 1979, followed by a visit from Voyager 2 later that year.  Since that time, it has been studied by the Galileo and New Horizons missions, as well as Hubble Space Telescope and many ground-based observatories.The search for water on worlds such as Ganymede is part of a larger exploration of worlds in the solar system that could be hospitable to life.   There are now several worlds, besides Earth, that could (or are confirmed) to have water: Europa, Mars, and Enceladus (orbiting Saturn). In addition, the dwarf planet Ceres is thought to have a subsurface ocean.

Monday, October 21, 2019

Free Essays on How Lindy Hop Helped Desegragation

Easing the tensions of segregation one dance step at a time Sing, sing, sing, sing everybody start to sing la dee da dee whoa ho ho now your singin’ with a swing! That wonderful sound that filled from the hot air on summer nights at the legendary Savoy Ballroom, Harlem, New York can still be heard today in ballrooms through out the country. When most people think of the legendary era of Swing that spanned the late 1920’s all the way through the early 1940’s they think of it as nothing more than a form of dance. But in actuality Swing was created to ease the tensions of segregation and hopefully put and end to it! Many people believe that swing had made segregation worse, but in actuality it helped the movement more than it hurt it. During the roaring 20’s, 30’s and 40’s not only were the Afro- Americans dealing with segregation but so were American woman as the woman’s suffrage movement gained more and more backing. Teenagers were also looking for their place within the American sub culture and turned to swing as a happy medium in teenage acceptance. Having partner dancing where both members were on the same footing and echoed gender equality soothed the gender issue. â€Å"Whether they were men or women, young or old, black or white every portion of society found some form of Swing favoritable for their dancing and listening. Which surely helped Swings mission of tolerance and mutual respect,† stated professor Stowe. 1860 – First close couple dancing begins. 1912 – Vernon and Irene Castle make closed couple dancing acceptable. 1920- Arthur Murray, a student of the Castle’s, markets dance lessons by mail. The first Fox Trot lessons cost only a dime. 1927 – Charles Lindberg makes his â€Å"hop† across the Atlantic. Traditional closed couple dancing began in the US after 1860, when America’s youth began moving from the rural environments to the cities looking for employment. (Swingin’ at ... Free Essays on How Lindy Hop Helped Desegragation Free Essays on How Lindy Hop Helped Desegragation Easing the tensions of segregation one dance step at a time Sing, sing, sing, sing everybody start to sing la dee da dee whoa ho ho now your singin’ with a swing! That wonderful sound that filled from the hot air on summer nights at the legendary Savoy Ballroom, Harlem, New York can still be heard today in ballrooms through out the country. When most people think of the legendary era of Swing that spanned the late 1920’s all the way through the early 1940’s they think of it as nothing more than a form of dance. But in actuality Swing was created to ease the tensions of segregation and hopefully put and end to it! Many people believe that swing had made segregation worse, but in actuality it helped the movement more than it hurt it. During the roaring 20’s, 30’s and 40’s not only were the Afro- Americans dealing with segregation but so were American woman as the woman’s suffrage movement gained more and more backing. Teenagers were also looking for their place within the American sub culture and turned to swing as a happy medium in teenage acceptance. Having partner dancing where both members were on the same footing and echoed gender equality soothed the gender issue. â€Å"Whether they were men or women, young or old, black or white every portion of society found some form of Swing favoritable for their dancing and listening. Which surely helped Swings mission of tolerance and mutual respect,† stated professor Stowe. 1860 – First close couple dancing begins. 1912 – Vernon and Irene Castle make closed couple dancing acceptable. 1920- Arthur Murray, a student of the Castle’s, markets dance lessons by mail. The first Fox Trot lessons cost only a dime. 1927 – Charles Lindberg makes his â€Å"hop† across the Atlantic. Traditional closed couple dancing began in the US after 1860, when America’s youth began moving from the rural environments to the cities looking for employment. (Swingin’ at ...

Sunday, October 20, 2019

The Complete Guide to ACT Grammar Rules

The Complete Guide to ACT Grammar Rules SAT / ACT Prep Online Guides and Tips Even though the English language is complex, ACT English tests a specific set of grammar rules. Furthermore, it tests these rules the same way, over and over again. In this complete guide, we've compiled the comprehensive list of ACT English grammar rules you need to know to ace the ACT English section. If you master all these rules and practice them with realistic ACT questions, you'll have a huge advantage on the English section.Unlike other guides, we give you lots of examples to help you understand how grammar rules will show up on the ACT. After all, you need to master the ACT format to do well on the ACT. Quick Overview The English rules tested on the ACT can be grouped into two categories: Usage and Rhetoric. Usage skills are what are typically called "grammar rules," such as punctuation, subject/verb agreement, and verb tenses. Rhetorical skills have to do with style, organization, and writing logic. You'll need to know how to organize sentences in a paragraph, connect two ideas together logically, and sequence paragraphs together. We'll start first with Usage skills, then move onto Rhetorical skills. Want to improve your ACT score by 4 points or more? We've put our best advice into a single guide. These are the 5 strategies you MUST be using to have a shot at improving your score. Download this free ACT guide now: USAGE SKILLS Usage questions cover primarily grammar and punctuation - what we generally think of as correct English. Punctuation The ACT only tests very specific uses of certain kinds of punctuation. Those rules, and only those rules, are detailed below. Commas Use commas to separate words and word groups in a simple series of three or more items. We had coffee, cheese, crackers, and grapes. Use a comma to separate two adjectives when the adjectives are interchangeable. It was a vibrant, massive painting. When starting a sentence with a dependent clause, use a comma after it. When Jim studied in the library for his chemistry quiz, it was very quiet. Use commas to set off nonessential parts of the sentence. The woman, knowing it was late, hurried home. Apostrophes Apostrophes are used two ways on the ACT: to show possession and to create contractions. Many of the apostrophes issues are tested using the "Word Choice" skill further below. To form possessives of nouns: Laura's hat The kids' toys The tree's leaves Note that the singular possessive Laura's has the apostrophe before the s, while the plural possessive kids' has the apostrophe after the s. To create contractions (show the omission of letters): There's a clown. You'd love it. Who's there? Colons Use a colon after an independent clause when it is followed by a list, a quotation, appositive, or other idea directly related to the independent clause. The vote was unanimous: the older candidate had won. Semicolons Use a semicolon to join 2 independent clauses when the second clause restates the first or when the two clauses are of equal emphasis. I'm not sure how to get there; let's get directions. Use a semicolon to join 2 independent clauses when the second clause begins with a conjunctive adverb (however, therefore, etc.) or a transition (in fact, for example, etc.). The basement is scary; thus, I do not go down there alone. Dashes Dashes are used to set off or emphasize the content enclosed within dashes or the content that follows a dash. Dashes place more emphasis on this content than parentheses. Upon discovering the errors- all 124 of them- the publisher immediately recalled the books. End Punctuation Use a period at the end of a sentence that makes a statement. He will try again. Use a question mark after direct questions. Where are we? Use (rarely) an exclamation point at the end of a sentence to express strong emotion. Stop it! Pronouns A pronoun is a noun that can stand in for another noun. For example, the pronoun "she" can stand in for "the woman" or "Queen Elizabeth." But, unlike nouns, pronouns change their form if they're used in different ways. These are the ways that pronouns are tested on the ACT. Subject vs. Object Pronouns Nouns, in relation to verbs, can be subjects or objects. Subjects "do" verbs and objects have verbs "done" to them: a dog (the subject noun) chases (the verb) its tail (the object noun). Regular nouns like dog or tail do not change depending on whether they are subjects or objects, but most pronouns do. For example, in the phrase "she likes him," the woman is the subject, so the pronoun is she; in the phrase "he likes her," the woman is the object, so the pronoun is her. Subject Pronouns Object Pronouns I you he she it we they me you him her it us them Examples Error: Me and my parents ate dinner. Corrected: My parents and I ate dinner. Error: The tourists asked my friends and I for directions. Corrected: The tourists asked my friends and me for directions. Error: The Girl Scouts sold cookies to my sister and I. Corrected: The Girl Scouts sold cookies to my sister and me. Note above that all of the examples pair the faulty pronoun with another noun. This is almost always how the harder ACT pronoun questions test this skill. That vs. Who This concept is simple: who is the pronoun for a person or people, and that is the pronoun for everything else. Examples Error: The coach is the person that is in charge of the team's schedule. Corrected: The coach is the person who is in charge of the team's schedule. Error: The elephant is the animal who asks for the most treats. Corrected: The elephant is the animal that asks for the most treats. Error: The corporation is who owns this land. Corrected: The corporation is what owns this land. Pronoun Agreement When we use pronouns more than once in a sentence, we have to use the same perspective throughout. Examples Error: If a person wants to succeed in corporate life, you have to know the rules of the game. Corrected: If a person wants to succeed in corporate life, she has to know the rules of the game. Error: Everyone should make their own decision. Corrected: Everyone should make his own decision. Error: Every student must study hard if they want good grades. Corrected: Every student must study hard if she wants good grades. Note: In the second example, that the error is the commonly-used "their" to mean a singular noun (everyone); while this is used in common, everyday speech, using "their" as a possessive pronoun for a single person is not formally accepted as grammatically correct on the ACT. These singular nouns that seem plural (such as nobody, anyone, and each person), as well as "their" instead of the singular "he" or "his," are often tested in the hardest pronoun questions. Ambiguous Reference Wherever there is a pronoun, it should be obvious what the pronoun is "standing in" for. Examples Error: Ethel told Lucy that her pie was wonderful. Corrected: Ethel told Lucy that Lucy's pie was wonderful. Error: The files arranged by the temporary workers were out of order, so we sent them back to the main office. Corrected: The files arranged by the temporary workers were out of order, so we sent the files back to the main office. Error: Once Nora and Elise go to live with their husbands, they have to convert to their ways of living. Corrected: Once Nora and Elise go to live with their husbands, the husbands have to convert to their wives' ways of living. Verb Forms: Tense and Agreement There are two main issues with verbs tested on the ACT: verb tense and subject-verb agreement. The subject is the noun that "does" the verb (below, the subject of the sentences is they.) Verb Tense There are six basic verb tenses, two for each time period: Simple Present: They sing. Present Perfect: They have sung. Simple Past: They sang. Past Perfect: They had sung. Future: They will sing. Future Perfect: They will have sung. All of these tenses are created out of three forms of "to sing": sing (present), sang (past), and sung (past participle). As you can see, some of the correct verb forms are created by adding forms of the words "have" and "do." The idea is to keep verbs in a single sentence within the same time period. Examples Error: The boy insisted that he has paid for the candy bars. Corrected: The boy insisted (past) that he had paid (past perfect) for the candy bars. Error: The doctor suggested bed rest for the patient, who suffers from a bad cold. Corrected: The doctor suggested (past) bed rest for the patient, who suffered (past) from a bad cold. Error: I told him that he can drop by any time and I will be happy to help him. Corrected: I told (past) him that he could (past) drop by any time and I would (past) be happy to help him. Subject/Verb Agreement Nouns and verbs are both parts of speech with number: they are written differently if they refer to just one thing or multiple things. Subject/verb agreement just means that the noun and the verb have the same number (singular or plural). For example, one dog runs fast, but two dogs run fast. Examples Matching subjects and verbs are underlined, while verbs that don't match subjects are bold. Error: The climate in those cities are uncomfortably humid. Corrected: The climate (singular) in those cities is (singular) uncomfortably humid Error: There was a rat and three buckets of whitewash in the corner of the basement. Corrected: There were (plural) a rat and three buckets of whitewash (plural) in the corner of the basement. Error: Ms. Russell is trying to read a book outside but a swarm of flies keep distracting her. Corrected: Ms. Russell is trying to read a book outside but a swarm (singular) of flies keeps (singular) distracting her. Comparisons These are pretty simple. Comparisons between two things are formed by the construction "x is more/less [adjective]/[adjective]-er than y." For example, Bill is more friendly than Louis. Comparisons between three or more things, however, are formed by the construction "x is the most [adjective]/[adjective]-est of the [things]." For example, Lucy was the most adept student in the class or The cheetah is the fastest land animal. The ACT tests this skill by mismatching the types of comparison: Examples Error: Between butterflies and spiders, humans admire butterflies the most. Corrected: Between butterflies and spiders, humans admire butterflies more. Error: Cheetahs are the faster of all land mammals. Corrected: Cheetahs are the fastest of all land mammals. Error: Nationalists think theirs is the better nation of all. Corrected: Nationalists think theirs is the best nation of all. Wondering how best to practice these grammar rules? Check out our #1 rated online ACT prep program. Unlike most prep programs, PrepScholar is special because we give you focused practice on individual skills, customized to your strengths and weaknesses. Are you weak in punctuation? We'll give you dozens of practice questions to master how to use commas. Confused about subject/verb agreement? PrepScholar will drill you on this grammar rule until you master it. We guarantee your money back if you don't improve your ACT score by 4 points or more. Check out our 5-day free trial: Word Choice These questions are about commonly confused words. Just memorize which is which. Its vs. It’s It's is short for it is or it has. It's too late. Its shows possession, like his and her. These are its footprints. Their vs. There vs. They’re There refers to a place. There is a terrarium in the first building; it is over there. They're is a contraction of they are. They're not in this building. Their is the possessive pronoun. Their house is on the next street. To vs. Too vs. Two Two is a number. There were two books on the table. Too means "more than enough" and "also." After we got our dinner for free, they gave us too much ice cream for dessert, too!" To indicates direction and action. We're going to the park to play basketball. Then vs. Than Then is mainly an adverb, often used to situate actions in time. That was then; this is now. Than is a conjunction used mainly in making comparisons. Shaq is taller than Kobe. "Might Have" vs. "Might Of" "Might have" is correct. "Might of" is not. She might have gotten lost. Idioms Idioms are expressions that mean something different than the actual words they use, such as "rain cats and dogs" or "kick the bucket." But in English we also have short phrases made of words that always go together, and these are also tested on the ACT. Examples Error: Maria stumbled in her old rocking horse in the garage. Corrected: Maria stumbled upon her old rocking horse in the garage. Error: Loud guard dogs keep burglars in bay. Corrected: Loud guard dogs keep burglars at bay. Error: Arturo and I happened for meet at the library. Corrected: Arturo and I happened to meet at the library. Verbal Phrases The ACT particularly loves one type of idiom: verbal phrases, which are verb + preposition pairs. They always want to know if you know which is the correct preposition, as in the incorrect sentences below. Examples Error: The show was followed on an encore. Corrected: The show was followed by an encore. Error: She is responsible of returning her library books. Corrected: She is responsible for returning her library books. Error: One should refrain for texting while driving. Corrected: One should refrain from texting while driving. Bonus: Looking for the very best guides to every ACT section? Check out our top guides for every single section of the ACT. Choose the score level you're aiming for: 36 Score Guides: ACT English | ACT Math | ACT Reading | ACT Science | ACT Essay Choose these guides if you're scoring a 26 or above on a section, and you want to get the highest ACT score possible. 24 Score Guides: ACT English | ACT Math | ACT Reading | ACT Science | ACT Science Choose these guides if you're scoring below a 24 on a section, and you want to boost your score to at least a 24 level. These are the very best guides available on boosting your ACT score, section by section. They're written by Harvard grads and perfect ACT scorers. Don't disappoint yourself - read these guides and improve your score today. Sentence Fragments Run-on Sentences Sentences are made up of groups of words that are called clauses. There are two types of clauses: independent (can be a complete sentence) and dependent (must be attached to an independent clause in order to be a complete sentence). An independent clause has a subject-verb pair and does not start with a word or phrase that makes the clause dependent, such as "when" or "because" (as in example 3 below). In the examples below, the subjects are underlined and the verbs are in bold. A Sentence Fragment is a sentence made of anything less than an independent clause. To fix it, we add an independent clause. Examples Fragment: Such as electrical, chemical, and industrial engineering. Corrected: There are many STEM careers, such as electrical, chemical, and industrial engineering. Fragment: Saving her team at a time when they needed her. Corrected: The goalie was saving her team at a time when they needed her. Fragment: Because the one I have now isn't working out too well. Corrected: I need a new roommate, because the one I have now isn't working out too well. A Run-on Sentence is made of multiple independent clauses joined by only a comma or no punctuation at all. It can be fixed with a comma and conjunction (example 1 below), a joining word like and or because (example 2 below), or a semicolon (example 3 below). Examples Run-on sentence: My favorite Mediterranean spread is hummus it is very garlicky. Corrected: My favorite Mediterranean spread is hummus, as it is very garlicky. Run-on sentence: I rushed out to the shop, I had no milk left. Corrected: I rushed out to the shop because I had no milk left. Run-on sentence: Mary likes dogs she has a beagle. Corrected: Mary likes dogs; she has a beagle. Parallel Construction Parallel construction is when we present a list of things all in the same way. For example, if two things in a list are adverbs, the third should also be an adverb. If two things in a list are "to [verb]," then the other should also be in the form "to [verb]." To fix it, we just phrase all of the items in the list the same way. Examples Error: The couple bought the concert tickets, arrived at the theater, and went about finding their seats. Corrected: The couple bought the concert tickets, arrived at the theater, and found their seats. Error: The deer moved carefully, quietly and in a way that was slow. Corrected: The deer moved carefully, quietly and slowly. Error: Peeling hazelnuts requires skill, patience, and the ability to persevere. Corrected: Peeling hazelnuts requires skill, patience, and perseverance. Faulty Modifiers A modifier is a word or phrase that describes (a.k.a. modifies) something. There are two kinds of modifier problems tested on the ACT: dangling modifiers and misplaced modifiers. Dangling Modifier A dangling modifier is a modifier that begins a sentence, has a comma after it, and has the noun it describes NOT placed after the comma. In the first example below, for example, the modifier is "coating the sidewalk," and it describes the snow. Since "we" is the first word after the comma, not "snow," "coating the sidewalk" is a dangling modifier. Modifiers are underlined, while nouns being modified are in bold. Examples Error: Coating the sidewalk, we trudged through the heavy snow. Corrected: We trudged through the heavy snow coating the sidewalk. Error: Long and tangled, it was difficult to comb the child's hair. Corrected: Long and tangled, the child's hair was difficult to comb. Error: Exhausted and weak, the soldiers' uniforms were covered in frost. Corrected: Exhausted and weak, the soldiers were covered in frost. Misplaced Modifier A misplaced modifier is a modifier that's not close enough to the thing it describes, so it looks like it's describing the wrong thing. In the first example below, for example, the modifier "on the sale rack" seems to be describing how the jacket fits the rack, which isn't right. To correct it, we move the modifier closer to the noun it describes. Examples Error: The jacket was too small on the sale rack. Corrected: The jacket on the sale rack was too small. Error: Ray wore his one collared shirt to the job interview, which was stained with mustard. Corrected: Ray wore his one collared shirt, which was stained with mustard, to the job interview. Error: She handed out brownies to children wrapped in foil. Corrected: She handed out brownies wrapped in foil to children. Bonus: Want to improve your ACT score by 4+ points? Download our free guide to the top 5 strategies you need in your prep to improve your ACT score dramatically. RHETORICAL SKILLS We're now going to cover the Rhetorical skills you need for ACT English. Where Usage skills tend to focus on smaller subparts of a sentence, Rhetorical skills broaden the scope to consider how sentences are constructed, and how sentences fit together with each other. Relevance This skill is deciding what the passage is about and whether a certain detail belongs in that category or not. Which sentences, if any, are irrelevant in the paragraph below? [1] My uncle explained to me that bonsai cultivation was part of our ancestors’ culture that could remain with me for my whole life. [2] He said that bonsai as old as Hoshi didn’t need much maintenance, but he would teach me what I needed to know. [3] He added that I could easily do everything necessary for Hoshi's care in my dorm room. [4] It’s funny to think that Hoshi is older than my great grandparents. Bonsai are grown from parts of normal-sized trees that are kept small by pruning and planting in small pots. [5] They thrive in only partial sunlight but need to be pruned several times per year and kept in temperatures that stay well above freezing year-round. [6] Bonsai also require careful watering, and Hoshi in particular needs to live outside in the summer to get the best light and inside in the winter because of the cold. If you said Sentence 4 is irrelevant, you're correct. The paragraph is all about bonsai cultivation, and Sentence 4 is about the age of bonsai trees. Author Intent For this skill, we need to be able to identify the writer's topic, point, or goal, and the ways she achieves it. What is the writer's point, t in the above paragraph? The correct answer is something along the lines of "the idea of Ra shows that people personify objects they depend on." Organization: Transitional Logic The ACT wants to test our ability to transition between ideas within a sentence, a paragraph, or a whole essay. Examples Error: All through high school, we were inseparable; however, even our parents eventually became friends. Corrected: All through high school, we were inseparable; in fact, even our parents eventually became friends. Error: The painting is a fascinating work because, by representing women in such a novel way, it questions both representational art and traditional notions of femininity. Nonetheless, most critics agree that it is a groundbreaking work in the development of both cubism and modern art as a whole. Corrected: The painting is a fascinating work because, by representing women in such a novel way, it questions both representational art and traditional notions of femininity. Indeed, most critics agree that it is a groundbreaking work in the development of both cubism and modern art as a whole. Organization: Macro Logic Macro-logic is the skill of putting the parts of an essay in the right order. Fortunately, on the ACT, there are tons of clues as to what order sentences and paragraphs should go in. Can you spot the out-of-place sentence(s) in the passage below? [1] He wore a sailor’s uniform and used papers given to him by a free black sailor, showed his ingenuity and courage. [2] After a number of previous failed attempts, Douglass finally escaped to freedom. [3] He took two boats and two trains to get from Havre de Grace, Maryland to a safehouse in New York City, completing his journey to freedom in less than twenty four hours. [4] He received the uniform from Anna Murray, a free black woman in Baltimore who later became his wife. If you said Sentence 4 is out of place, you were right. It should go after Sentence 1. Extra Advice: Want to get into the best college you can? Read our famous guide on how to get into Harvard, the Ivy League, and your top choice college. In this guide, you'll learn: What colleges are looking for in your application How to impress your top choice colleges Why you're probably wasting your time on activities that don't matter Even if you're not actually interested in Ivy League schools, you'll still learn something fundamental about how to apply to college. Read our top college admissions guide today. Conciseness and Redundancy There are times when saying something twice is needed: for emphasis, to review a difficult topic, or to explain something more clearly. None of these apply on the ACT. The two ways this skill is tested on the ACT is through wordy sentences and redundant sentences. They're related, but different. Wordy Sentences Examples Error: To travel around Berlin, we have the option of choosing many different transport systems; among them are the U-Bahn, or the underground rail system similar to New York’s Subway, and the tram, which is another form of transport that involves railways that have tracks on the streets. Corrected: To travel around Berlin, we might take the U-Bahn, or subway; we could also take the tram. Error: High-quality learning environments are a necessary precondition for facilitation and enhancement of the ongoing learning process. Corrected: Good schools enable people to learn more. Error: With reference to the fact that the company is deficient in manufacturing and production space, the contract may in all probability be awarded to some other enterprise. Corrected: The company may not be awarded the contract because it lacks production facilities. Redundant Sentences Examples Error: Many uneducated citizens who have never attended school continue to vote for better schools. Corrected: Many uneducated citizens continue to vote for better schools. Error: The eye of a storm is a region of mostly calm weather found at the center of a tropical cyclone. Corrected: The eye is a region of mostly calm weather found at the center of a tropical cyclone. Error: The teenage woman who wanted to audition was talented, but only sixteen years old. Corrected: The woman who wanted to audition was talented, but only sixteen years old. Formality and Tone Every piece of writing has a level of formality, from none (a note passed in class) to maximum (official government or legal documents). The skill here is understanding the formality of the text (which is always pretty close to a book you'd read in English class). What's the informal phrase in the passage below? Examples Many cultures in recorded history have venerated and even worshipped the Sun. To some civilizations, the Sun represents all life; to others, the reason for the cycles of day and night. To Plato, the Sun represented the offspring of all that was good. In other myths, though, the Sun might have another kind of significance. It's for sure that the Sun carries great significance for many cultures both ancient and modern. If you said "it's for sure," you got it! It's less formal than the rest of the passage, which sounds quite academic. That's It! That's every rule tested on the ACT, as well as the ways in which they are likely to appear. Knowing these rules will make it easier to move forward confidently in your ACT practice. But this is just the beginning. Keep reading to find our most recommended links to master ACT English. What's Next? Knowing the grammar rules is just the beginning. Now, you need to practice them over and over again until you perfect your knowledge of them. Want an 36 on ACT English? Read our detailed guide on how to get a perfect English score. Be sure to also check our ultimate guide to ACT English, with links to all of our articles on ACT English tips and strategies. Better yet, read our guide on how to score a perfect ACT 36 score. Want to improve your ACT score by 4 points? Check out our best-in-class online ACT prep classes. We guarantee your money back if you don't improve your ACT score by 4 points or more. Our classes are entirely online, and they're taught by ACT experts. If you liked this article, you'll love our classes. Along with expert-led classes, you'll get personalized homework with thousands of practice problems organized by individual skills so you learn most effectively. We'll also give you a step-by-step, custom program to follow so you'll never be confused about what to study next. Try it risk-free today:

Saturday, October 19, 2019

Servant leadership Essay Example | Topics and Well Written Essays - 1250 words

Servant leadership - Essay Example He left the journal publishing business and eloped to New York and from this city he moved on to Philadelphia city where he arrived in October in the year 1723. He was able to secure a job as a printer the work that he did for a very short period of time before he was carried away by the promises of Governor Keith to go to London (Franklin, 2001). The promises of Governor Keith did not materialize and he had to work as a compositor in London city until he was rescued by Denman who was a merchant and he was able to come back to Philadelphia. Back in Philadelphia, Denman was able to secure for him a job in some of his businesses until his sudden demise upon which Benjamin had to make a come back to his earlier business of printing journals (Franklin, 2001). He was able to set up The Pennsylvania Gazette and through this journal he was able to write numerous essays which he later used for agitating reforms in the local politics, Benjamin died at the age of 84 in the year 1790. Accomplis hments Benjamin was able to successfully issue an article by the name â€Å"Poor Richard’s Almanac† through which he managed to utter pithy messages and wise sayings and from these utterances and sayings he built his reputation (Franklin, 1959). Some of the pithy utterances and wise sayings were borrowed while others were composed and this publication was established in the year 1732. In the year 1758, Benjamin was able to momentarily stop publications of the Almanac articles and instead he converted most of these publications into â€Å"Father Abraham’s Sermon† which later emerged as a famous literature during the era of the Colonial America (Franklin, 1959). Major successes Through his involvement with the public affairs, Benjamin was able to set up an Academy which was later repossessed and upgraded into Pennsylvania University. He was also able to establish American Philosophical Society and the purpose of establishment of this society was to enable m en who were considered as scientific to be able to share with one another their various discoveries (Franklin, 2001). He was active in politics and was able to secure a seat and later introduced postal system reforms in the home politics. Major failures Benjamin was stained with nepotism since he used his position in politics to advance most of his relatives. He was also able to lose his Assembly seat and in the year 1764 he was sent to England on a mission as the colony agent and during service as an agent he was able to oppose the establishment of the Stamp act, but he lost his petition on the basis of securing a favor for his friend in one of the stamp offices back in the USA as an agent. Leadership approach of Benjamin Franklin In his leadership approach Benjamin is considered as a social innovator and this is evident during the year 1727 and 1757 in which he was able to champion seven leading social innovations and these innovations later changed the nature of the two cities na mely Pennsylvania and Philadelphia (Mumford, 2002). Between the era of 1727 and 1757, Benjamin’s social innovations are most evident and some of the areas of innovations include development of the Pennsylvania Stove, gas lamps, and improvement of the various gutters in the streets and the general society welfare (Mumford, 2002). In the year 1727, Benjamin was able to establish Junto club and through this club he was able to pass his intellectual and monetary

Friday, October 18, 2019

Crime Problem from an Historical Perspective Essay

Crime Problem from an Historical Perspective - Essay Example Involvement of American society to the functioning of the justice system plays a vital role against crimes in a democratic environment. The societal behavior against crimes in United States is strong which deliberately reacts on justice system and present Hate Crime Laws in 1990 by George H.W. Bush (Terril, 2009). These laws protect civil society in which Attorney General is required to collect data on crimes which are committed because of the victim’s religion, race, disability or ethnicity. In Russia, after protests from the society against crimes raised, the government took serious actions and made a Federal Security Service (FSB) which now investigates crimes of national and international scope and provides security to the civil society. In 1996, under Russian Federal jurisdictio system criminal justice system started which solve many problems of the society. Criminal act is an act or possession under the laws of government which poses a violation of laws. The serial rapist is a crime without weapon, using physical force to do this crime and this unique criminal behavior must be controlled (Terril,

Coursework 2 Essay Example | Topics and Well Written Essays - 500 words

Coursework 2 - Essay Example Africans in the Congo were given only a margin education, ordered by missionaries, and served as clerks. Africa was ruled either directly or indirectly by the colonial powers. Officials were appointed from the ruling European country, which also passed laws for its African territory. Africans were taxed by the colonial powers and could not pass any measures without approval from the ruling European power. Although colonization of Africa as a whole was devastating for Africa, there were some positive effects. The spread of Christianity could be considered a good outcome, depending on ones religious outlook. During colonial times, African people came into direct contact with European culture, and may have been able to benefit from some of the new ideas. To some extent, some infrastructure such as railroads were built. In addition, it has been stated that â€Å"time spent under [British] colonial rule is positively associated with democratic survival† (Bernard et. al. 225). But the common consensus is that Africa is still recovering from the period of colonization. The website "Time Travel to the Korean War" does a good job of briefly describing the different periods of the Korean War, organized in separate sections. For instance, the first section presents the final events of World War II that led to the division of Korea along the 38th parallel by the United States and advancing Soviet Union troops from the North. Other sections of this website describe events in Korea between WWII and the Korean War; the events following the Norths attack on the South; counterattack by U.N. troops; the involvement of Chinese and other foreign troops; the aftermath of the war; and recent events in Korea. This website is a good short introduction to the Korean War. The BBC website, "In Depth: The Korean War," offers a brief summary of the war. The site also contains

Thursday, October 17, 2019

FDT 2 week 8 Essay Example | Topics and Well Written Essays - 250 words

FDT 2 week 8 - Essay Example Specifically, the article is quite not clear about its main thesis, especially when it says that the human trafficking and smuggling are heinous crimes against the humanity. It should be appealing if the author was able to include on what ground do these crimes violate or interfere the promulgation of the international law. It might be necessary to present at some point the international laws relevant to telling that human trafficking and smuggling aside from posing risks to people also violate the law. The thought linked to this should have made the point clearer as to the issue and on the ground that human trafficking or smuggling are crimes against the humanity. On the other hand, the author basically presented some reasoning about the danger or threats linked to human trafficking and smuggling activities. However, this point should have rich supporting details in order to make the entire argument smooth and vibrant in its general

Fashion and Consumers Essay Example | Topics and Well Written Essays - 1250 words

Fashion and Consumers - Essay Example The essay "Fashion and Consumers" analyzes fashion and consumerism. The rules were established at the end of the eighteenth century: coat, trousers and vest, designed and constructed to produce a uniformly ideal silhouette and image for any man. A slightly wider lapel here, a fractionally narrower trouser leg there, is as much as most of us are willing to tolerate† (Boyer). From there, consumers influences the market of fashion because of their interest and needs during a period of time. decisions because it is as set of symbols and artifacts created by a society and handed down from generation to generation. From there, customer segmentation is important understanding consumer behavior so that marketers can know what they need to appeal to each consumer’s social class. Since customer segmentation is at the root of CRM, each business that performs CRM is ready to address the bigger question of deploying unique messages to the right customer at the right time. The booming CRM industry has provided the in-depth customer data that is vital for successful direct mail campaigns and integrated channel strategies focused on keeping and growing profitable customers. Data can become customer insight. Customer insight can become action. Action can grow the value of customer base and grow net income. Unlike women's hemlines, which seem to go from here to there in a blink, more than a half-inch taken or given anywhere in a man's wardrobe constitutes a revolution. The general thrust in menswear. since the beginning of the twentieth century has been to make the basic suit more comfortable: lighter-weight fabrics and construction techniques have reduced stiffness, heaviness and constriction. Men's tailoring today is positively airy compared to what it was before mid-century (Boyer). Social classes From there, social classes are likely to respond differently to a sellers marketing program. However, there are other situational factors that encourages consumers to purchase organic food such as store location and personal preference. Due to this fact, marketers may need to design marketing programs tailored to specific social classes so that that they can be more successful in understanding their customers needs without making mistakes. Customers have the ability to make a choice about what they want to purchase. Customers want excellent service from the companies that they patron and they want competitive pricing. This may appear to them that the company is weakening or is inconsistent. By communicating goals and strategy early on, the organization pays respect to customers and employees, and deals openly with uncertainty and doubt. (Baron, A. p. 13, 2006). Customer trends Customer trends change and so does their choices, which means people are generally tired of the same brands that they had been using over the years. When they do not see the expected innovation they migrate to new brands. With that, maintaining the standards of such a huge chain becomes feasible. However, when there is lack of quality service in one store it affects the whole brand. In order to overcome the issues, marketers of organic food need to consider group thinking and conformity so that everyone can work together. Working on a team can be very rewarding and exciting, but also frustrating if some of the team member are not committed

Wednesday, October 16, 2019

FDT 2 week 8 Essay Example | Topics and Well Written Essays - 250 words

FDT 2 week 8 - Essay Example Specifically, the article is quite not clear about its main thesis, especially when it says that the human trafficking and smuggling are heinous crimes against the humanity. It should be appealing if the author was able to include on what ground do these crimes violate or interfere the promulgation of the international law. It might be necessary to present at some point the international laws relevant to telling that human trafficking and smuggling aside from posing risks to people also violate the law. The thought linked to this should have made the point clearer as to the issue and on the ground that human trafficking or smuggling are crimes against the humanity. On the other hand, the author basically presented some reasoning about the danger or threats linked to human trafficking and smuggling activities. However, this point should have rich supporting details in order to make the entire argument smooth and vibrant in its general

Tuesday, October 15, 2019

Tell me why Hume believes that Thesis (2) is true Essay

Tell me why Hume believes that Thesis (2) is true - Essay Example As we grow, we gain information about the world around us through our senses. These simple impressions of the world cause corresponding simple ideas. A burning feeling in our finger leads to the simple idea of ‘don’t touch that.’ These simple ideas are gathered as we grow. We may understand not to touch that if we don’t want to feel burning in our finger. We may also understand that hot food comes from that place, that that place is called stove and that stove is only burning if the top is red. These several simple ideas combine together to form complex ideas – don’t touch the top of the stove when it’s red because that means it is hot and will burn our finger. This type of sequential connection of impressions is essentially the evidence of memory. A group of memories, each themselves a collection of impressions, can then combine to create impressions of even more complex concepts which may include ideas of family, education or religion among other things. This is possible because these impressions can also be connected in non-sequential forms that comprise imagination. For example, the earlier memory of the burning stove might be translated into a red spiral skirt placed on a dancer as she twirls about a stage in an energetic dance celebrating summer. Imagination is necessary in order to develop these complex thoughts into complete ideologies by which one might live their life. For example, Hume indicates in this argument that God himself is a complex idea formed from simple ideas caused by simple impressions. Although the idea of God was sufficient proof for Descartes, Hume suggests that this idea does not require or prove that God truly exist. Our impressions, whether they are in the form of simple ideas, memories or imagination, become attached to words that we use to help us recall these impressions. However, these thoughts are always qualified with specific

Interpersonnel Communication Essay Example for Free

Interpersonnel Communication Essay I have interviewed two individuals namely, Ana G. and Cleavon I. with regards to my interpersonnel communication abilities. They will speak about my behavior/attitude towards the following: 1) comfort with other cultures; 2) listening style ability; 3) non-verbal communication style; 4) communication gestures that I typically utilize; 5) comfort in personal relationship; 6) power displayed or conveyed in the personal relationship I am involved in. The following are excerpts from the actual interview: First Interview (Ana G. ) Interviewer (I): â€Å"Could you please briefly describe my attitude towards individuals who belong to other cultures? Do I appear to be comfortable around them? † Interviewee (Ana G. ): I have been with you for about a year already, and being a member of a cultural minority myself, I am happy to say that your treatment towards people like us is beyond belief. You have treated us fairly and you never showed bias making it obvious that you are comfortable being with people regardless of their race or culture (Ana G. , 2007). Interviewer (I): â€Å"Please comment on my listening skills and abilities†. Interviewee (Ana G. ). I appreciate the fact that you are an â€Å"active listener† (Landsberger, 2007). You focus and you listen for the sake of comprehending whatever it is that the person is talking about (Landsberger, 2007). Interviewer (I): â€Å"Do I possess any non-verbal ability? † â€Å"Do I exhibit such communication style? † â€Å"Could you please shed light on the communication gesture/s that I typically utilize? † Interviewee (Ana G. ): Yes. In fact, I have observed how you establish eye contact towards the people you speak to. Maybe that is the â€Å"flow of communication is regulated† (Stein et. al. , n. d. ). This is also why I feel your interest, concern, and tenderness towards me (Ana G., 2007). Interviewee: (I): â€Å"Did you ever feel any comfort in my personal relationship with you? † Interviewer (Ana G. ): Yes, indeed, I have felt reassurance as well that you could be trusted and can be relied upon in times of need (Ana G. , 2007). Interviewee (I): My final question is this, â€Å"did you ever see or experience a power displayed or conveyed in the personal relationship I am involved in? † Interviewer (Ana G. ): The fact that I am drawn to speak or listen to you shows the â€Å"power displayed or conveyed in the personal relationship† (Ana G. , 2007). This is the type of power that is not abusive; instead it is exceedingly helpful on my part (Ana G. , 2007). Second Interview (Cleavon I. ) Interviewer (I): â€Å"Could you please briefly describe my attitude towards individuals who belong to other cultures? Do I appear to be comfortable around them? † Interviewee (Cleavon I. ): We belong to the same culture, but I have observed how you deal with those who belong to other cultures. You go along with them very well as if you don’t feel any kind of discrimination or intolerance of prejudice towards them (Cleavon I. , 2007). Interviewer (I): â€Å"Please comment on my listening skills and abilities†. Interviewee (Cleavon I. ): Even if you do not always agree with what others tell you, I am happy that you still listen in spite of such fact (Cleavon I. , 2007). I am contented enough that you take the time to listen and understand someone else’s side just like what you have done to me in the past few months that we have been working together (Landsberger, 2007). Interviewer (I): â€Å"Do I possess any non-verbal ability? † â€Å"Do I exhibit such communication style? † â€Å"Could you please shed light on the communication gesture/s that I typically utilize? † Interviewee (Cleavon I. ): Of course, you possess such. In fact, you have shown me this countless times already (Cleavon I. , 2007). Your facial expressions which include smiling made me feel that you like me somehow, that you are a true person friend to me, and that you are happy conversing with me (Stein et. al. , n. d. ). I know that this is why we always carry out better communication as compared with my conversation with others (Cleavon I. , 2007). Interviewee: (I): â€Å"Did you ever feel any comfort in my personal relationship with you? † Interviewer (Cleavon I. ): Yes, in fact speaking with you and just being with consoles/soothes/relieves me always (Cleavon I., 2007). There has never been a dull moment with you and I greatly appreciate that (Cleavon I, 2007). Interviewee (I): My final question is this, â€Å"did you ever see or experience a power displayed or conveyed in the personal relationship I am involved in? † Interviewer (Cleavon I. ): Yes, I felt that ‘power’ when you speak to me (Cleavon I. , 2007). You inspire me to great heights; that is the power that you have over me (Cleavon I. , 2007). References Ana G. (2007). Personal Interview. Cleavon I. (2007). Personal Interview. Landsberger, J. (2007). Active Listening. Retrieved December 10, 2007 from http://www.studygs.net/listening.htm

Monday, October 14, 2019

Multipath Fading Channels And Transmitted Signals Computer Science Essay

Multipath Fading Channels And Transmitted Signals Computer Science Essay Multipath fading is a phenomenon of fading of transmitted signals due to refraction, reflection and diffraction from objects or obstacles present in the line or way of transmission. In this article, we have be realized an example of multipath fading channels such as in case of Rayleigh fading channels using MATLAB and would be analysing the variations incurred after varying system parameters such as samples per second and Doppler shift of the respective blocks of the Rayleigh fading system. Also, here screen shots of the respective variations have been provided for clear understanding of induced variations. 1. Introduction As mentioned earlier as well, multipath fading is the occurrence of fading of transmitted signals by refraction, reflection and diffraction due to obstacles present in the line or path of transmission and channels affected due to this type of fading are called multipath fading channels. Rayleigh fading is nothing but the statistical model that communication engineers use to study the characteristics propagation of radio signals, in case of wireless propagation channels. In general, Rayleigh fading model is used for studying ionospheric and tropospheric signals propagation and such that the signals are transmitted in a widespread manner i.e. they are transmitted in form of concentric rings throughout the atmosphere. Thus, these are not used to study the fading that occurs in line of sight propagation (for that Rician is preferred over it). The Rayleigh fading channel can be used to study fading characteristics such as in cases of densely populated cities with a large number of skyscrapers (such as Central London and NYC). The central limit theorem limits this concept such that the amount of scatter can be considered as a function of irrespective of individual function of Gaussian distribution. The impulse response can be modelled a random function varying from 0 to 2pie [1]. The probability distribution function R(of Rayleigh fading) can be given as; Where, ÃŽÂ © =  E(R2). [1] As mentioned in abstract that we would be varying the Doppler shift in case of Rayleigh fading and will be explaining the observed variations in the generated output, its better to have an understanding of what Doppler shift actually means as well for better understanding of concepts. Doppler effect (or Doppler shift) can be described as the increase or decrease in Doppler frequency in case of a moving object (for e.g. the Doppler frequency increases when the object is moving towards the stationary or moving object and vice versa for moving away from the desired moving or stationary object). The mathematical expression for Doppler frequency can be given as; f = left( frac{v + v_r}{v + v_{s}} right) f_0 , Where Vr is the velocity of receiver relative to the medium and Vs is the velocity of source relative to the medium and V is the velocity of waves in the medium [2]. Also, Doppler power spectral density which is also an important parameter of Rayleigh fading is the measure of spectral broadening caused in the waveform characteristics of the transmitted signal (such that the received signals appears to be faded and broadened as compared to the actual signal sent). The mathematical expression for Doppler power spectral density can be shown as [3]; S(nu) = frac{1}{pi f_d sqrt{1 left(frac{nu}{f_d}right)^2}} Realization of Rayleigh fading using MATLAB A sample program of Rayleigh fading can be accessed in MATLAB 2010a by typing the command doc_qpsk_rayleigh_derotated in the command window. The MATLAB operator gives us a block diagram of the Rayleigh fading. It consists of a Bernoulli binary sequence generator, two QPSKs, one error rate calculator, one Rayleigh fading block (where adjustments regarding Doppler shift can be made), one phase removal of path gain block and in the end an AWGN block for simulation of faded signal (4). The screenshot of block diagram for Rayleigh fading had been shown below; Figure 1. MATLAB screenshot of the block diagram for simulating the Rayleigh fading 2.1 Simulation with basic values of Doppler shift and sample rate The simulation results into three possible outputs. These are transmitter output, Rayleigh channel output with no phase component and Rayleigh noisy channel output with no phase component. These outputs for sample simulation with bit sample rate/sec of 100logbase2 (M) and maximum Doppler shift of 1000 hertz is shown below. The screenshots of respective output of QPSK modulator output, Rayleigh channel output and noisy Rayleigh channel output has been shown below; Figure 2.screenshot of MATLAB simulated QPSK modulator output for Rayleigh fading Figure 3.screenshot of Rayleigh channel output for Rayleigh fading (simulated using MATLAB) Figure 4.screenshot of the noisy Rayleigh channel output for Rayleigh fading (simulated using MATLAB) 2.2. Simulation with changed values of Doppler shift and sample rate In the second simulation i have changed the values in Doppler shift and sample rate per second. The Doppler shift can be changed by changing masking parameters in the Rayleigh fading channel. Here, in this simulation I have kept the Doppler shift to 10000Hz while in previous case it was 1000Hz. Also, in Bernoulli bit sequence generator the value of samples per second had been changed to 1000logbase2 (M). The observed variations have been shown below. Figure 5. QPSK modulator output of the Rayleigh fading (simulated using MATLAB) Figure 6. Rayleigh channel output for the Rayleigh fading (simulated using MATLAB). Figure 7. Noisy Rayleigh channel output for Rayleigh fading (simulation using MATLAB) 2.3. Explanation of the observed variations It can be seen that in first case the outputs (amplitude) of QPSK modulator lies in the range of -1 to 0 and 0 to +1 while it varies from -2 to 0 and 0 to +2 which obviously should be observable as the samples per second gets increased from 1000 to 10000 samples per second. However, as the Doppler shift is increased the fading becomes more visible in case of the Rayleigh fading and noisy Rayleigh fading channels. The explanation can be given using Jakes model which relates the Doppler shift and Rayleigh fading. Jakes model relates the Rayleigh fading for kth wave to Doppler shift in following manner; R(t,k) = 2sqrt{2}left[sum_{n=1}^{M}left(cos{beta_n} + jsin{beta_n}right)cos{left(2 pi f_n t + theta_{n,k}right)} + frac{1}{sqrt{2}}left(cos{alpha} + jsin{alpha}right)cos{2 pi f_d t}right] Also, fn=fd(cosa) [5] Hence, it can be said that the amount of Rayleigh fading is directly proportional to the cosine of Doppler shift experienced by the transmitted wave. Also, worth mentioning over here is that is cosine decreases from 0 to increasing values of angle. It can be also seen that from expression mentioned above for power spectral density for Doppler shift that if the Doppler shift is increased the corresponding power spectral density is also increased. Thus, the results shown in the screenshots are explained and justified and it can be said that with the increase of Doppler shift the transmitted waves the Rayleigh fading is increased and so is the power spectral density related to it. Conclusion Rayleigh fading is an important phenomenon used to explain multipath fading in case of the dense populated areas. Rayleigh fading affects a transmitted signal by making broadened and faded in nature and it also does effects its power spectral density in a big way. Also, with increase in Doppler shift the Rayleigh is increased as well. In this setup, channel distortion parameters such as gain and phase are defined as a complex number consisting of real and imaginary parts. Thus, Rayleigh fading can be said to be composed of two paths (real and imaginary) and can be considered as independent paths which can be added in order to get net magnitude of Rayleigh fading occurred in the transmission [6]. To counter the effects of Rayleigh fading a number of techniques were used in the past but the most common one used these days is using a White Gaussian simulator for maintaining bearable effects of Rayleigh fading. This had been shown in the block diagram shown above. References Proakis John. G (1995).  Digital Communications  (3rd Ed.). Singapore: McGraw-Hill Book Co. pp.  767-768.  ISBN  0-07-113814-5 Rosen, Joe; Gothard, Quinn Lisa (2009). Encyclopedia of Physical Science. Infobase Publishing. p. 155. ISBN 0-816-07011-3., available on page 155 Clarke.H.R. (July-August 1968). A Statistical Theory of Mobile Radio Reception. Bell Systems Technical Journal, page number 957-1000 Arsal. A, Ozen. S(2008), A Rayleigh fading  ¬Ã‚ lter design for multipath Rayleigh fading simulation and comparisons to other simulators Jakes. C. Williams, Editor (February 1, 1975). Microwave Mobile Communications. New York: John Wiley Sons Inc. ISBN 0-471-43720-4. Proakis John. G (1995).  Digital Communications  (3rd Ed.). Singapore: McGraw-Hill Book Co. pp.  767-768.  ISBN  0-07-113814-5 Spread Spectrum Models Abstract Spread spectrum is a statistical modulation technique that is been used for increasing the available channel bandwidth. In this article we have focussed on the one the spread spectrum models i.e. two users real spreading with BPSK modulation using MATLAB. Also, a brief study of variations and the explanation of such observations are made in this article. Here, Ill be varying the SNR value of the AWGN block in the given block diagram for the spread spectrum model and would be observing and explaining the variations occurred. 1. Introduction Spread spectrum modulation is a type of modulation in which we intentionally increase the available bandwidth in frequency domain i.e. we stretch the available bandwidth. This leads to a broadened or widened signal for with increased bandwidth. This is generally done to increase bandwidth for signals that require more bandwidth for transmission (it has an effect similar to aliasing but the difference we take anti-aliasing measures against the later). The system models that use such spread spectrum techniques are called spread spectrum models. Two user model for real spreading with BPSK modulation basically utilizes two different orthogonal codes for spreading of the codes. The process of spreading is independent in nature i.e. a different pn sequence for each of the two users. This model uses the orthogonal frequency division multiplexing access technology (OFDM) for communication between the two users simultaneously. In this scheme, there are a large number of orthogonal sub carriers separated by a very small distance. The data is then divided into small but same sized chunks and then are loaded (modulated) on these orthogonal sub carriers through multiple paths [1]. The subcarriers then can use any of the conventional technologies for modulating these data packets (such as QAM or PSK) for transmission over the channel. Also, the symbol rates for individual data packets are maintained such that those comparable to its conventional counterparts. However, OFDM is more popular with wireless systems. 2.1. Realization of spread spectrum model using MATLAB Two user orthogonal real fading with BPSK can be realized in MATALAB by typing commspreading_orthobpsk2u in the MATLAB command video. The result shown on the MATLAB simulation window is a block diagram of two user real spreading with BPSK. The screenshot of this has been shown below; Figure 1- Two-user orthogonal real spreading with BPSK modulation (simulated in MATLAB) As shown in the block diagram here the system setup can be broadly classified into three sections. These are transmitter section, the channel and then receiver section. Receiver section is further extended into one more section known as error calculation section. Let us have a brief look into each of the sections mentioned above. 2.1.1 Transmitter section The transmitter section is responsible for transmitting signals to receiver section via channel section of the system setup. Transmitter section is basically made up 5 major components, these are Random integer (signal generator), real BPSK modulator, Hadamard code generator, normalized gain and spreader blocks. Random integer block is used for the generation of signals that could be used for sending over the channel. These signals are then BPSK modulated where it is also mixed with the actual user signals and sent to spreader section. The sequence generated is of 64 bits length. Then on the lower side of the transmitter contains Hadamard code generator which generates unique Hadamard codes for the signals encryption and security to protect it from hacking and noise addition over the channel. The gain of the Hadamard code is then normalized and mixed with the BPSK modulated signal in the spreader section. The spreader is responsible for the deliberate spreading of signals in the frequency domain to increase the bandwidth of transmitted signal. 2.1.2. Channel section Channel section here refers to actual channel or medium through which transmission is done. But here its not wireless as it is an experimental setup. This section here contains AWGN correction blocks. These are responsible for deciding SNR values for the transmitted signals as to gain knowledge about the actual signal transmission through wireless medium. Here, a person can set values of SNR such that to determine the low and high noise environment and the results of these variations of the error rate at receiver section. 2.1.3. Receiver section The receiver section is responsible for the reception, decryption, de-spreading and calculation of error rate in the received signals after travelling through the physical medium. The process carried out here is just opposite as of transmitter section of the setup. The received signal is first sent to de-spreader for removing the spreading done in transmitter section. The integrator and dump section is used to detect or separate out RZ and NRZ parts of bit sequence [3]. Then the sequence is sent to demodulating BPSK section and then to error rate determination section for error rate estimation. 2.2. Effects of Variations in SNR on the Error rate The effects of variations of SNR on the error rate have been summarized below. The table below shows the variations in values of SNR and the corresponding changes in error rate i.e. eRx/Rx (number of erroneous bits transferred /total bits received [2]) with de-spreading. Also, worth mentioning here is that the time period for which the simulation is carried by the system is set to 0.125 seconds in this sample spread spectrum modulation. The table is as under; Figure 2. Table above depicts the effect of variation of SNR on the error rate of the system setup explained above (all values are realized in MATLAB and written down in the table) The table above shows that with increasing values of signal to noise ratio the value of bit error rate is reduced. But it is different in first two readings for receiver1 and receiver2 while it ends out to be zero for SNR value 100 dB for all of the values simulated in a time defined range of 0.125 seconds. This pretty understandable that the dispreading used is here is of ideal nature thus the value of erroneous bits goes down as value of SNR increases. The difference in the error rates between the first two readings of receiver1 and receiver2 is pretty understandable as the two different signals have different error rates when they are transmitted through two different Hadamard codes (i.e. initial seed for first receiver was set to 37 and for second it was set 631). 3. Conclusion Two user orthogonal real fading with BPSK modulation is used as an experimental to study the characteristics of spread spectrum. The OFDMA as we know splits the large data into small equally sized fragments and transmits it through multiple paths thus is also affected by multipath fading. This particularly affects wireless channels even makes is even more difficult to maintain SNR and low error rates. To counter the effects AWGN simulator is used such that the effects of multipath fading are neutralized. The observations made with this system setup prove that value of SNR affects the error rate percentage in the transmission. As the value of SNR is increased the value of error rate goes down and vice versa for a lower value of SNR. References 1. Robertson. P; Kaiser .S; The effects of Doppler spreads in OFDM(A) mobile radio systems, Vehicular Technology Conference, 1999. VTC 1999 Fall. IEEE VTS 2. Shah .Gaurav ; Molina. Andres ; Blaze. Matt (2006); Keyboards and Covert Channels 3. Sadr, R.; Hurd, W. J.; The Telecommunications and Data Acquisition Report, page 158-173 (ISBN N88-12679 04-32) 4. Aurthur. Ross (1997); CA Patent 2228131; data available on http://www.mathworks.com/products/commblockset/demos.html?file=/products/demos/shipping/commblks/commspreading_m.html#1 5. MATLAB code available at http://www.mathworks.com/products/commblockset/demos.html?file=/products/demos/shipping/commblks/commspreading_m.html#1 IEEE 802.11 WLAN Abstract IEEE 802.11 is the standard adopted by IEEE for design of wireless network systems. Here, in this article a sample simulation of 802.11 standard is done using MATLAB and Simulink. Also, a brief description of operation and functional characteristics of blocks (i.e. components) used for attaining and maintaining wireless networks have been made. Also, certain parameters of WLAN system setup are varied to make a brief study of changes that incur in the system due to these variations. 1. Introduction Secure, dependable and fast wireless systems have become a need of current growing world that touches everyone ranging from individuals to large organizations. Wireless networks are needed for small private area networks such as Bluetooth and Ad Hoc and large networks for wider network coverage such as 3G and 4G networks are currently being employed for providing internet and communication services to people with mobility. The WLAN 802.11 standard is used for wireless communication networks in 2.4, 3.6 and 5 GHz frequency bands [1]. There is a complete family of 802.11 which uses a number of over the air modulation techniques for transmission and reception of signals. There a number of versions launched by IEEE under the name of 802.11, this includes 802.11a, 802.11b, 802.11g and 802.11n. The most frequently employed among these are 802.11b and 802.11g. The data to be transmitted is first broken in small and equally sized packets and then modulated and transmitted on multiple channels (through different paths) to the destination. Thus, it uses OFDMA access for setting up communication. 802.11 standard has a complete frame stack for secure and dependable communication. These include certain frames for controlling and maintaining the wireless connection among wirelessly connected hosts. These are Protocol version, Type, Sub type, ToDS and FromDS, More fragment, Retry, Power management, More data and WEP [2]. All these play important part in setting, maintaining, controlling and releasing the wireless connection among a number of wirelessly connected hosts on 802.11 system. Below is shown a sample example of how 802.11 WLAN standard system looks like. Figure 1. The Linksys WRT54G contains an 802.11b/g radio with two antennas [3]. 2.1. Realization of IEEE 802.11 WLAN standard in MATLAB A sample MATLAB program for IEEE 802.11 WLAN can be realized in MATLAB by typing the same in help command box of the MATLAB. The output shows an experimental setup containing block diagram of the IEEE 802.11 WLAN system. This has been shown below. Figure 2- The screenshot above shows the block diagram of the sample IEEE 802.11 WLAN standard simulated in MATLAB The block diagram broadly contains variable-rate data source, BPSK modulator and demodulator, OFDM symbol generation block and disassemble OFDM frame block, multipath channel and a packet error calculation block. Also, the signal visualization block for opening the signal characteristics of such setup. These signals characteristics are shown below. Figure 3-The signals transmission and receiver characteristics of the 802.11 system setup using sample settings (simulated in MATLAB) 2.2. Operations and working of the Block diagram The signal characteristics can be visualized in the above screenshot. The transmitted data consists of a binary stream of data send with OFDMA modulation. In this model shown above the variable rate data source is used to generate a binary string of variable data rates which could be considered as similar to the real life scenario as data rates vary with time and need of the users. This binary string is then BPSK modulated using BPSK modulator which is the case with OFDMA as it uses any other general modulation technique for the modulation of signals and then OFDMA codes are added to it. The signals are now undergo a number of alterations before reaching the multipath channels. These include adding a cyclic code to the signals and going through IFFT which is inverse fast Fourier transform to the signal. The signals are then sent through multiple paths which is the case with the OFDMA. This completes transmitter section. After all these processes the signal enters the receiver section of the WLAN. The signals go through cyclic code removal block and then FFT or fast Fourier transform block to anti the effects of IFFT. Then signals are equalised in frequency domain as these get disturbed in frequency domain as shown in the figure 2 signal equalization. The disassemble OFDM block takes off the OFDM codes from the signals and then the signals is demodulated using a BPSK demodulator after which the signal output is sent to the error collection block where the original and received signals are compared to get error rate in the transmission. Also, one more output wire goes to adaptive modulation control block where the degree of modulation is controlled according to the bit error rate achieved by the system. Also, the value of SNR is varied according to the values entered in the stack. This also changes the adaptive modulation control. 2.3. Effects of variations in certain parameters of IEEE 802.11 WLAN setup The effects of inducing variations in certain parameters such as SNR or hysteresis are visible in the transmission characteristics of the block diagram shown below. These values are achieved after changing the value of hysteresis value for adaptive modulation to 10dB from 3dB and lower SNR threshold values to [10 11 14 18 22 24 26 32] decibels from earlier value of [10 11 14 18 24 26] decibels. It can be seen from the two figures 3 and 4 that the unequalized signal spreads out more. Also, the per i.e. packet error rate is increased from 6% to 12%. This due to increased hysteresis for adaptive modulation control. Conclusion The IEEE 802.11 standard for wireless LAN is used as a standard for setting up the wireless network for communication of multiple numbers of hosts. Also, in this sample simulation we concluded that with varying values of SNR and hysteresis the BER and PER also changes. Thus, it can be also concluded that data rates and packet loss rates are also variable at variable places in the parts of networks. This due to different distances, landscapes and congestion is different for different areas as the signal transmission follows multiple paths for transmission and every single path has a different type of obstacles available. Also, the system is greatly affected by noise present in free space. The reception quality always decreases with increase in distance between the service provider and host.

Sunday, October 13, 2019

An Envision brought Alive :: essays papers

An Envision brought Alive The video of the glass menagerie met to my exact expectation of the play. While reading the play I could only grasp in my mind the picture of each of the characters, the setting they were in, and the relationships they were engaged in. Therefore I could only envision what I thought their faces would look like or the expressions they were making. But after watching the video I was able to put the puzzle pieces together and finally see what I was missing through the portrayal of characters, the setting, and the relationship between the characters. The portrayal of the characters was done almost exactly to the play. I felt that each of the actors did an exceptional job at this. Amanda’s character came alive in the movie and emphasized her typical role of a nagging and annoying person. Her overall attitude, motions, and facial expressions helped bring alive her character. She expressed tones in her voice, that you wouldn’t be able to hear in reading the play, which helped illuminate her characters determination with dominating over her children and also with winning over Jim. The portrayal of Tom was also done very well, a young man tired of living at home with a mother who will not leave him alone and a sister who he feels bad to leave behind. The actor used good expressions such as the roiling of his eyes to his mother and his angry faces when she pushed him to the edge. In the play I didn’t grasp how frustrated he actually was, but the movie helped me understand with his character. I felt Laura was the b est portrayed character. Her weak and humble attitude, her shy and nervous ways, her small frame, her little girl look were all shown in the video. Her emphasis on her disability was also portrayed well in the movie. In the scene with her and Jim in the living room when he tells her he didn’t even notice she had a problem with her leg, she becomes greatly embarrassed and shy and wants to not talk about that subject. Jim’s character was also portrayed well in the play I found him to not really like Laura or feel bad for her when he tells her he is engaged, but in the movie I found him to be more caring and sympathetic towards Laura and her feelings.