General Translation Theories Essay Example for Free

General Translation Theories EssayWhile non e really adept who drives an automobile postulate to netherstand the scheme behind the internal combustion engine, near iodine does need to devote it off this speculation. I whitethorn be adequate to(p) to drive my Pontiac without any cognizeledge of internal combustion engines, until the Pontiac breaks down. Then, I must uprise some genius (presumably a mechanic) who does in f human action write out enough theory to get the Pontiac waiverning again. The equivalent(p) is true of explanation theory. It is not necessary for everyone to know translation theory, nor is it even necessary for pastors and teachers to know everything more(prenominal) or less translation theory. It is necessary for pastors and teachers in the Ameri force out church at the end of the twentieth century to know something rough translation theory, for two reasons. First, it will affect the mien we interpret the Bible for our state. If we atomic number 18 tout ensemble unaw atomic number 18 of translation theory, we may unwittingly mislead our br separates and sisters in our interpretation. Second, there ar so more incline translations available, that no contemporary pastor will be able to escape the inevitable questions more or less which translations be superior.It is not my intention to provide anything like an exhaustive nuzzle to either translation theory or semantic theory (relax, Ill define this treatment later). Rather, I intend to discuss short the more grievous observations, which may be useful to the pastoral ministry. 1. Communication has leash parties. Translation theory sh bes a number of concerns with what is commsolely c exclusivelyed confabulation theory. Perhaps the close to beta observation which the communication theorists induct produced for translators is the recognition that every act of communication has super acid chord dimensions Speaker (or author), Message, and Audience.The mor e we can know closely the original author, the actual mental object produced by that author, and the original audition, the conk out acquainted we will be with that particular proposition act of communication. An alive(predicate)ness of this tri-partite character of communication can be very useful for interpreters. Assuming that an act of communication is right now taking place, as you read what I wrote, there are leash dimensions to this particular act of communication myself, and what I am intending to communicate the actual battle crys which are on this page and what youunderstand me to be saying.When the three dimensions converge, the communication has been efficient. If we know, perhaps from another root word, what an individual authors circumstances are, this may help us understand the actual message produced. Martin Luther King, Jr. s Letters from Prison are better understood by someone who knows the circumstances under which they were indite rather than by someone who is oblivious to mid-20th century American history. If we know nurture about the authors earreach, this may as well help us to understand the message itself.John Kennedys famous, Ich bin ein Berliner speech is better understood if one understands the apprehensions which many western hemisphere German citizens had about American foreign policy during the early 1960s (and, knowing the audience was German may help explain why he did not speak this sentence in side ). Recognizing that in addition to the message itself, there are the two other components of author and audience, the interpreter look fors to put out as much in make upation as manageable about the author and audience.This is why biblical scholars authorise so much time attempting to locate the circumstances of a apt(p) epistle they are trying to obtain information about author and audience, which will help complete the understanding of the particular act of communication represented by the message. At this point , an important warning needs to be expressed. For students of literature whose original audience and author are not present (i. e. , dead), we only befool direct access to one of the three parties in the communicative process the message itself.Whereas we would be profited by having direct access to author and audience (capital of Minnesota, what in the world did you mean about baptizing for the dead? or, How did it hit you Galatians when capital of Minnesota said he wished his troublers would abridge themselves? ), it would be incorrect to suggest that we must sop up such(prenominal) access for any understanding to get a line place. Frequently one encounters the extravagant statement to the effect that one cannot understand a biblical hold unless one understands the authors (or audiences) circumstances.The problem with such statements is that they imply that we can live with no understanding without access to information which simply does not always exist. We havent any idea who wrote the epistle to the Hebrews, or why, other than what may be indicated in the letter itself. Does this mean that we cant understand it in any sense? I think not. We salutary have to recognize that information, which would assist the act of interpretation, is, in this case, mis chirrup. Related to this warning is a second.For Protestants, scripture itself is authoritative. Our reconstructions, very much highly conjectural of the historical circumstances under which a given biblical work was written and read, are not authoritative, by my understanding of Protestant divinity. Those reconstructions may assist our understanding of the biblical text, provided they are not, in and of themselves, of any religious authority. Finally, we readiness add that the essential error of many exegetical theories is their exclusion of one or more of these three parties from consideration.While many important debates are continue to influence interpretive theory, our evaluation of these debates would do well to retain a role for each of the three above-mentioned dimensions. 2. Formal and Dynamic Equivalence One of the ongoing debates about translations revolves around the question of whether, and in what degree, the translation should reflect the syntax, or form, of the original address. All translators agree that the translation should reflect faithfully the message of the original, provided all are not agreed on whether the translation should adhere closely to the well-formed forms of the original language.Translations can be located on a spectrum, which would have, at one extreme, rigid bail bond to the form of the original language (formal comparability), and at the other extreme, complete disregard for the form (not the message) of the original language (dynamic comparison). An interlinear would have it away the closest to the first extreme, followed by the NASB. At the other extreme would be the eyeshade and TEV. In between would be the RSV and NIV, w ith the RSV leaning more toward a formal equivalence, and the NIV leaning more toward a dynamic equivalence.It is probably fair to say that just about contemporary linguists favor the dynamic equivalence approach in theory, though they might be disappointed in the various attempts at producing one. The reason for preferring to be sick the thought of the original without attempting to conform to its form is that all languages have their own syntax. While the syntax of one language may be similar to the syntax of other languages, it is also dissimilar as well. Thus, if we attempt to adhere to the formal syntax of another language, we reproduce forms which are abnormal or confusing, if not honest distracting in the target language.For example, Greek tends to have very long sentences, whose various clauses are arranged in a logically hierarchical fashion. That is, there will be a number of dependent clauses connected to an independent clause. This type of sentence structure, perfe ctly normal in Greek, is called hypotactic (clauses are arranged logically under one another). slope, by contrast, is not so comfortable with long sentences, and does not provide any favourable way of indicating which clauses are dependent upon others.Our sentence structure is called paratactic (clauses are arranged logically alongside of one another). If we attempt to reproduce, in English, sentences of the same length as the Greek original, our audience will not be able to follow our translation. Ephesians 13-14, for instance, is one sentence in Greek, with well-defined subordinate clauses. If we attempt to reproduce a sentence of this length in English, the result will be so awkward that a couple of(prenominal), if any, English readers would be able to follow it. Consequently, translators must break the longer Greek sentences into shorter English sentences.For the pastor and teacher, it is important to be able to recognize the hypotactic structure of the original language, be cause it is ofttimes of theological and ethical significance. For instance, there is only one imperative (independent clause) in the Great mission make disciples. All the other verbs are dependent. The other clauses help to describe what the commandment means. Most English translations, however, obscure this point by translating the Great Commission as though it were a string of equivalent imperatives.Whats worse, they tend to treat one of the dependent clauses as though it were the major (independent) clause (Go). So the teacher or pastor needs to be able to understand what is going on in the structure of the original language, without necessarily trying to reproduce it in an English translation. There are other differences between the two languages. Greek typically uses passive verbs English prefers active verbs. Greek typically makes nouns out of verbs (making redemption as reciprocal as redeem). Speakers of English are not as comfortable with these abstractions we are happi er with verbs.A dynamic equivalence translation will communally reproduce the meaning of the Greek in a more natural manner in English. In 2 Thess 213, for instance, pistei aletheias, is understandd belief in the truth (formal equivalence) by the RSV, simply the truth that you believe (dynamic equivalence) by the NEB. The latter, while not any more accurate than the former, is a little more natural, and thus more easily understood. A classic example of the difference between English and Greek syntax is testify by the difference in their respective employment of the participial. First, the Greek participle is much more joint than the English.solely the Greek participle is also used differently than the English participle. Greek commonly employs the participle in an attributive fashion, as a verbal adjective. This is very rare in English. James Taylor does sing about the The Walking Man, but this is rare outside of artistic expression. We would commonly produce a intercourse c lause, the man who walks. Because of the differences in the way the two languages use their respective participles, we simply cannot translate a Greek participle with an English participle in many cases, without being obscure or enigmatical.Dikaiothentes in Romans 51 should not be translated, having been expertified (NASB formal equivalence), but, since we are justified (RSV dynamic equivalence). There are problems, however, with dynamic equivalence translations. Since the translator is freer from the grammatic forms of the original language he is more likely to eliminate the bounds of an accurate translation, in an effort to speak naturally in the native language. That is, the dynamic equivalence translations are capable of being more natural and more precise than are formal equivalence translations, but they are also more capable of being precisely wrong.For instance, in Romans 83, Paul uses the phrase dia tes sarkos. A formal equivalent translation, the RSV, renders this by t he flesh, which is faithful to the original but somewhat ambiguous in English. The NIV renders this much more precisely, by the phrase, by the sinful genius. Unfortunately, the NIV is precisely wrong here, because Paul is not talking about a lower nature, or a sinful nature at all. In occurrence, he is not speaking anthropologically, but redemptive-historically.In this particular case, I believe we would be better off with the ambiguous flesh, and have to ask what, flesh means for Paul, than to have the more precise but utterly un-Pauline sinful nature. Another problem associated with dynamic equivalence translations is related to their use as guinea pig Bibles. Since a given record may have a number of meanings, it is frequently impossible, and more frequently confusing, to attempt to translate a given Greek word with the same English word in every case. Consequently, the dynamic equivalence translation can give a morespecific get in English, being unbound by an attempt to r eproduce the same Greek word in the same English manner. This produces better understanding, frequently, of individual sentences or clauses. However, it does not permit the English reader to know when the same Greek word lay behind two different English row. Since the only way to know what a word means is by first examining its full range of uses, there is no way for the English reader to know what words are behind the English words found.For instance, when Paul says he could not address the Corinthians as pneumatikoi, but rather as sarkinoi (1 Cor 3), he employs the adjectival forms of what we normally translate smelling and flesh. And, in Romans 8 (as well as elsewhere), it is clear that life in the Spirit is redeemed life whereas life in the flesh is unredeemed life. If the adjectives in 1 Cor are translated spiritual, and fleshly, the reader can guarantee the correspondence to other Pauline passages, and understand that Paul is saying, in effect, I could not address you as r edeemed people, but as unredeemed people. provided the NIV construes sarx as sinful nature in Rom 8, and sarkinos as worldly in 1 Cor 3, with the result that the reader of this translation is not aware that in the original the same root form was employed. The conclusion of this is that the dynamic equivalence translation, when do well, renders in more precise and more vivid English particular expressions. However, it makes it more difficult to discriminate individual passages with parallel passages elsewhere. In any given congregation, a variety of translations will be present.The teachers in the church must have the competence to discern which one represents the original most accurately in English in any circumstance. In my judgment, none of the contemporary translations is manifestly superior to the others. Each is a blend of strengths and weaknesses, due to the difficulty of the task. From the pulpit, of course, some versions can be excluded rather easily. Paraphrases, while u seful to embellish a point, should never be used as the basic sermon text, because they reflect so soundly the opinions of the paraphraser.Also, childrens Bibles, such as the Good News, and, to a lesser degree, the NIV should not be used as the stern of a sermon directed toward the built-in congregation. The NASB should not be used, simply because its English is atrocious. Its rigid affixation to the formal equivalence principle, while making it highly useful in the show, renders it exclusively in permit in a setting where communication is important. The NIV should not be used from the pulpit, in my judgment, because it is a sectarian translation.It is a self-confessedly evangelical translation, which excluded non-evangelicals from the translation process. It is therefore ecclesiastically unacceptable (it excludes from the outset people who dont call themselves evangelical, just as the Kingdom Translation excludes people who dont call themselves Jehovahs Witnesses). In fact, e ven for study purposes, one will have to be cautious about the evangelical bias reflected in this translation, whereby the weaknesses, as well as the strengths, of evangelicalism have not been offset by a more inclusive committee.Specifically, the NIV shows many signs of being individualistic, experientialist, and revivalistic (I am speaking about the NIV New Testament I havent evaluated the NIV Old Testament thoroughly yet). At the same time, the NIV ought to be in the ministers study because it is a good illustration of the demands of a dynamic equivalence translation, and it is also very successful at many points. The RSV, reflecting the breadth of the church, a high style of English, and a fairly accurate representation of the original text, is perhaps the preferred text for pulpit use.3.Translation is a theological task It has become increasingly clear that translation cannot existently be performed in a theological vacuum. When a variety of linguistic options present themsel ves, theological factors can influence the decision to choose one option over the other. In fact, such factors should influence the translation. The resolution of the translation question about how to translate telos in Romans 104 is resolved in large part by resolving big questions about Pauls theology how he understands the relation between the older testament and the Christ event, etc.Since theology is to be de conditionined by the Bible, and since translating the Bible is determined, at least(prenominal) in part, by theological considerations, it is slack to see that there is something of a circle here. Fortunately, it is not a vicious cycle, because if one is willing to harbour sympathetically a variety of options, one can grow in the confidence with which one evaluates a given translation. One must never pretend, however, that translation is a grade of pre-exegesis or pre-interpretation. The first step of interpretation istranslation.This step will influence all other st eps, so it must be approached with the entire arsenal of theological tools. semantic Theory It is appropriate now to move to some consideration of dealings with the meaning of individual words (commonly called lexical semantics). A lexicon in the hands of an over-imaginative prophesyer may be the deadliest of all human instruments. In term of sheer percentages, more pulpit nonsense may be attributable to a misunderstanding of how words communicate meaning than any other interpretive error.Since the technological study of linguistics began in the early nineteenth century, a number of very valuable insights have been assumeed by the linguists. What follows is an attempt at providing some of their most useful insights for those who want to teach and preach faithfully. 1. Semantic Field and Context Most words can mean a number of things. cause the English word, dominate. It can seem in the following (and many more) contexts The athlete is betning. Her nose is running. We score d a run in the sixth inning. I have a run in my stocking. Does your car run? My estimator runs on Windows.For how long is the movie running? You want to run that by me again? His sermons seem to run on forever. Shes running the flag up the pole. Jackson is running for President. Who left the water running? Enough, already. It is clear that most words can mean a number of different things. How do we know what a word means in a given circumstance? Well, we dont just choose the one we prefer. In fact there are two components to meaning semantic field and semantic context. By semantic field, we mean the full range of ways the word has and can be used (an example is the above, partial(p) semantic field for run).By examining the field of possible meanings, we begin to narrow the options. Normally, there are gloss over too many options, so we have to take another step. The second step is to determine the semantic context. If run, for instance, can refer to rapid, bipedal locomotion in s ome contexts, we can eliminate that option in contexts where there are no legs or feet. If run can mean flow, or drip, it is a possible way of understanding it where noses and faucets appear, but not where liquids do not appear.In everyday speech, we do this good-hearted of comparison to semantic context so rapidly and unreflectively that we are not normally aware of doing it. But we do it nevertheless, and normally with great accuracy. It is imperative that we do this with biblical literature as well. No word brings its full semantic field with it into any given context. Yet many fanciful pulpit statements are due to the attempt to do this very thing. 2. Root Meanings some people speak of root meanings. Many people speak of ghosts. Neither exists.Apparently, when people speak of root meanings of words, they are attempting to find the distilled essence, or the common semantic range of the word in each of its contexts. This may, by dumb luck, work in some circumstances, but it won t work in most. What common root meaning is there in the word run which can account for the variety of uses listed above? Is it motion? Perhaps, for the athlete, the flag, even the nose (which doesnt move itself, but its contents do). But is there any motion involved in the statement that a soulfulness is running for an office?Is any motion taking place when a movie runs for six weeks? Is a run in a stocking a movement of some sort? I fail to see how there is, without redefining the word motion to include virtually everything. And if we do this, then we arent learning anything specific about the term in question (This is the practical deficiency of the Componential Analysis approach to Semantics if one finds an element common enough to be related to all the various uses, it isnt specific enough to be any real help in any given context). In actual fact, we dont really know why people use terms in such a broad range of ways as they do.But the answer su trust doesnt lie in the fact o f some alleged root meaning, common to all uses. Thus, for interpretations sake, it is better not to speak of root meanings at all. Just look at the entire semantic field, and then limit that field by the contextual considerations. This doesnt mean that there are no similarities in the variety of a terms uses. If we return to run, we can determine several sub-fields. We can see run used of liquids, to indicate they are flowing. We can see run used with machines to indicate that they are in operation(p) as they should.We can see it used in reference to putting one foot earlier of another repeatedly, in rapid succession, which would embrace the athlete, and, by extension, the runs in a baseball game (which are a short-hand reference to someone running around the bases). But these fields do not appear to be related to each other, and worse, these fields do not account for the stocking or the flag. Perhaps we ought to just bring root meanings out once a year, on October 31st, and then put them back for the light of the year. 3. Etymologies and Semantic Change Etymology is a perfectly valid field of study.Etymology is the study of the history of a words usage. It has the historical benefit of demonstrating to us what a word might have meant in a given period. One thing etymologists have discovered, of course, is that words change over time. That is, people apparently use terms in an increasing variety of ways, extending known usages, and coining new usages. Thus, the history of a words usage is not necessarily any help in ascertain its meaning in a particular context. And certainly it is not the case that the earliest known meaning is the true, real, or, need I say it, root meaning.Gay, for instance, might well have meant joyful or carefree in certain places in certain times. It most emphatically does not mean that today in San Francisco. Do not be misled a happy hour at a gay bar may be a very touching experience for a heterosexual teetotaler. The biblical i nterpreter is not particularly interested in what a term may have meant several centuries prior to the time in question. Rather, the biblical interpreter wants to know what range of meaning a term had in the period in question. Etymology is not particularly useful as a guide to the meaning of a term in any given context.Semantic context is the more reliable guide. 4. Polyvalency You may run across (oops, another use of run) this term from time to time, so you may as well know what it means. Polyvalency refers to the ability of a given term to have a number of meanings in any given historical period. Run is polyvalent. It is important for the interpreter to be aware of the full range of possible meanings of a given word, before determining what it means in its given context. 5. Words and Concepts For the sake of clarity, it is helpful to distinguish between a word and a concept.Most words can be employed to denote a number of concepts, and most concepts can be addressed by using a r ange of terms. Thus, charis is a word dump is a concept which can be labeled in a variety of ways. So, if you want to study, The beautify of God in the New Testament, you would certainly include not only a word study of charis, but also passages which refer to Gods human activity without employing that particular term. For instance, the parable of the laborers in the vineyard reflects Gods gracious character, as those who come along late in the day receive equal recompense with those who have labored all day.God graciously gives the nation not only to the Jews, but also to the Gentiles, who come on the scene a bit late, redemptive-historically speaking. 6. Semantic Minimalism One of the best axioms to apply when attempting to discover the meaning of any given word was first coined by Ferdinand de Saussure and his followers. The best meaning of a given term is the meaning which contributes the least to the overall meaning of the sentence. In most communication acts, we do not loa d up a given word with a lot of meaning.Rather, we speak in paragraphs and sentences the individual words have little meaning in and of themselves, but much meaning when fastened to one another. Many seminarians and preachers seem to be unaware of this, for they frequently interpret the Bible as though its individual words were almost magical, possessing great truths and mysteries in six or seven letters. There are very few technical terms in any language, which are more heavily wicked than most words. Concluding Observations If one were to state briefly the results of linguistic study in the last few generations, one would certainly have to refer to the importance of context.Linguistics has made us repeatedly aware of the fact that the fundamental communicative unit is the sentence, not the word. Individual words, removed from the context of a sentence, rarely communicate effectively. Words strung together, mutually supporting and interpreting one another, can communicate very effectively. For biblical students, this means that we must look at the larger unites of communication (the sentence and paragraph) at least as seriously as we look at individual words. We must be aware of the fact that a given word can signify a number of different things in a number of different contexts.Personally, I would like to see more sermons on whole chapters of scripture, and even on entire books, and fewer sermons on a verse here or there. If a person can produce a single 20-minute distillation of Romans 1-11, he can certainly handle Romans 63 when it shows up. If the contextual emphasis of contemporary linguistics can help us see the forest of a biblical book, as opposed to merely the trees of individual words, it will have done us and Gods kingdom a great service. ________________________________________ Dr. T.David Gordon, a native of Richmond, VA, is currently Professor of Religion and Greek at plantation City College in Grove City, PA, where he has served since 1999 . Previously, he had taught for thirteen years at Gordon-Conwell Theological Seminary. ________________________________________ explanation METHODS WORD FOR WORD translation The SL word order is preserved and the words translated by their most common meanings. Cultural words are translated literally. The main use of this method is either to understand the mechanics of the source language or to construe a difficult text as pre-translation process. LITERAL translation The SL grammatical constructions are converted to their nearest TL equivalents but the lexical items are again translated out of context. As pre-translation process, it indicates problems to be solved. FAITHFUL translation It attempts to reproduce the precise contextual meaning of the original within the constraints of the TL grammatical structures. It transfers cultural words and preserves the degree of grammatical and lexical deviation from SL norms. It attempts to be completely faithful to the intentions and the te xt-realisation of the SL writer. SEMANTIC translation It differs from faithful translation only in as far as it must take more account of the aesthetic value of the SL text, compromising on meaning where appropriate so that no assonance, word play or repetition jars in the finished version. It does not rely on cultural equivalence and makes very small concessions to the readership. While faithful translation is dogmatic, semantic translation is more flexible. COMMUNICATIVE translation It attempts to render the exact contextual meaning of the original in such a way that both language and content are readily acceptable and comprehensible to the readership. idiomatical translation It reproduces the message of the original but tends to distort nuances of meaning by preferring colloquialisms and idioms. FREE translation It reproduces the matter without the manner, or the content without the form of the original. Usually it is a paraphrase much longer than the original. ADAPTATION This is the freest form of translation mainly used for plays and poetry themes, characters, plots preserved, SL culture converted to TL culture and text is rewritten. From A Textbook of Translation by P. Newmark

Determining the identity of an organic unknown Essay Example for Free

Determining the identity of an perfect outlander EssayWhen supplied with a organic unknown there are numerous ways of determining its identity and it is important to use as oft in geological formation as kindle be gained to work out the identity of an unknown as many are very similar in visible properties, chemical properties and/or chemical make up. In this experiment I get out be using a flow chart to identify the available sort out that the unknowns contain, and once I have suggested this I will then use spectra given to me to destine what the identity of the organic unknown is. I have been told that the organic unknown, will i of the sideline operable assemblys Alcohols Probably the almost common of these functional groups is the -OH group, which is known as the hydroxyl group. It is NOT the hydroxide ion, OH1-, as it does not have a charge. The dash in front of the OH stands for a single covalent draw together, which is what will be formed between the oxygen and a carbon particle. An aliphatic hydrocarbon that has one hydroxyl group attached to a carbon is called an alcohol. The simplest alcohol is methyl alcohol, or methanol.The molecular canon is usually indite as CH3OH, because it gives to a greater extent of a picture of the actual structure than does CH4O. This way of writing the formula becomes more important as the number of carbons increases. Take the case of ethyl alcohol, or ethanol. The conjure up coalesce is ethane, so the formula is C2H6O, that C2H5OH gives specific information that the compound is an alcohol and not any another(prenominal) compound. phenol Colour little solid, partially miscible in the cold wet, soluble in organic solvents. Differ in many ways to aliphatic alcohols. Like alcohols contain -O-H group but excessively a benzene ring.The difficulty in substituting the -OH group is due to the stabilisation ca utilise by the overlap of the p-orbital of the oxygen pinpoint with the bonding in the ring . The situation is similar to that in chlorobenzene. Phenols have many chemical properties i) Acid-base properties Phenol is a stronger acid than water whereas aliphatic alcohols are weaker. The polarity of the hydroxyl bond facilitates the loss of a proton and the formation of a phenoxide ion and the delocalisation in the phenoxide ion also stabilises it as compared with RO- or OH- ions.If electron-withdrawing groups (-Cl) are substituted into the benzene ring the polarity of the O-H bond is increased still further giving still stronger acids. Aldehydes A new divide of substituted hydrocarbons arises when an oxygen atom is double bonded to the carbon at the end of the chain. In this case there are two less hydrogen atoms, so instead of ternary end hydrogens, there is the C=O and only one hydrogen. The simplest aldehyde is, formaldehyde, CH2O. Its IUPAC name is methanal. It has an -al ending as opposed to the -ol ending that alcohols have.These compounds show the generic formula, H-R=O. Ketones A different class of organic compounds results if the C=O occurs somewhere along the chain other than on the end carbon. The simplest ketone has three carbons. It has the common name acetone, and is in most fingernail polishes and removers. It is sometimes called dimethyl ketone, but is more properly called propanone. Break away the name to catch out how the name propanone gives a better picture of the compounds formula than does acetone. First of all, the propan- indicates that the parent hydrocarbon is propane, and thus has three carbons.Second, the ending -one goes along with the ending of the name of the class of compounds to which it dies, ketones. The generic formula for ketones is R-C=O(-R). carboxylic acids Carboxylic acids have a more complex functional group, and if you look at it, you can see both the C=O of the aldehyde and the -OH of the alcohol. The organic, or carboxyl group, is -C=O(-OH), often written as COOH, or regular CO2H. Organic acids may have more than one carboxyl group. The simplest organic acid is methanoic acid, CHOOH, or formic acid, to use the older name.Ants inject formic acid into their victim whem they bite them. The next in flexure is, of course, ethanoic acid, CH3COOH. Notice the ending, -oic, to the IUPAC name, and -ic, to the common name. There are some very important organic acids, and one of the most important is ascorbic acid, better known as Vitamin C. The generic formula is R-(COOH)x Why are these compounds acids? Well, they must be able to produce at least one hydrogen ion when they are put into solving, since that is the general translation for an acid.Even though these organic acids may contain quite a few hydrogen atoms in the molecule, only study hydrogens are able to be ionized or turned into hydrogen ions. These select hydrogens are those in the carboxyl group (-COOH) The presence of one or more of these groups, therefore, causes the compound to belong to the organic acids. Ester An este r results when there is an oxygen atom between two carbons in the chain. The simplest is dimethyl ester, which has the same molecular formula as ethanol. The way the formula is written to show the ester, rather than the alcohol, is CH3OCH3.There are two other esters of interest, ethylmethyl ester and diethyl ester. You should be able to write the formulas for each of these. Esters are represented as R-O-R, where R and R can be the same or different hydrocarbon units. Method Apparatus i 10 cm3 measuring cylinder i Teat pipette i trial run tubes i Electric hotplate Reagents i bromine water i 2,4-dinitrophenylhydrazine i Tollens reagent i Aqueous sodium carbonate i Lime water i Acidified potassium dichromate Only small deals of the unknown compound need to be used in each audition as they are in a pure form.Therefore I will only use 3cm3 of each reagent and the unknown compound. Test for presence of alcoholAn oxidation answer must take place. Mix equal volumes (3cm3) of dilute sul phuric acid and potassium dichromate solution. so tally the same volume of the unknown to it. If the solution turns from orange to green then a indigenous or secondary alcohol group is present. Test for presence of a carbonyl group A condensation reaction takes place. 2,4-dinitrophenylhydrazine solution is added to the sample, if the solution turns into an orange precipitate then a carbonyl compound is present.Test to distinguish between a ketone and an aldehyde An oxidation reaction takes place. Add a small volume of sodium hydroxide solution to 3cm3 of silver nitrate solution until a slight precipitate forms, than add ammonia solution dropwise until the precipitate dissolves. Then add a few drops of the unknown sample and warm up in a water bath. If a silver mirror forms, then the compound has an aldehyde functional group. Test for presence of carboxylic acid An acid / base reaction occurs. Aqueous sodium carbonate solution is added to the sample.If effervescence occurs and th e gas evolved is carbon dioxide (test gas by bubbling into lime water) then a carboxylic acid group is present. Test for presence of phenol A substitution reaction occurs. Bromine water is added to the sample and if a phenol group is present then the bromine water decolourises and a gaberdine precipitate is formed. Test for ester group Esters have a distinct fruity smell. There is no simple test to carry out for identifying an ester, so I will determine the sample is an ester by ostracise results from the previous tests.Saftey Safety is imperative when carrying out experiments in the lab, this is even more true when the identity of a compound is unknown as it could have any dangerous properties, gloves should be used when handling substances and goggle worn, long hair tied back and cuts covered. Flow chart Results of organic tests All organic tests be negative, apart from the test for an alderhyde although this test did not produce a silver mirror some raunchy precipitate was fo rmed indicating the likeliness of the presence of an aldehyde.Analysis of spectropic information Conclusion I conclude that the organic unknown is an aldehyde this is because of the results found from the chemical tests performed , the specific aldehyde I believe the unkown to be is benzaldehyde. This is because not only does its physical properties fit those described in text books it also has the right structural formula to fit with the spectropic data provided. benzaldehyde benzaldehyde or benzenecarbonal , C6H5CHO, colourless liquid aldehyde with a characteristic almond odour. It boils at 180iC, is soluble in ethanol, but is insoluble in water. It is formed by partial oxidation of benzyl alcohol, and on oxidation forms benzoic acid. It is called oil of bitter almond, since it is formed when amygdalin, a glucoside present in the kernels of bitter almonds and in apricot pits, is hydrolysed, e. g. , by crushing the kernels or pits and boiling them in water glucose and hydrogen cya nide (a poisonous gas) are also formed.It is also prepared by oxidation of toluene or benzyl chloride or by treating benzal chloride with an alkali, e.g. , sodium hydroxide. Benzaldehyde is used in the preparation of certain aniline dyes and of other products, including perfumes and flavourings.Evaluation Overall I line up this experiment went very well as I was able to determine both the functional group present and then with the aid of specropic data the exact compound. I carried out the experiment safely following all guideline set in my method. The only test that could have been performed more accurately was the test for an alderhyde that did not produce a silver mirror.

Street Gangs Essay Example for Free

Street Gangs plundervasAnother risk mover involves domestic violence at home for these young people. If they arnt get enough attention and instead been getting enough beating from their families, these young people would rather be with guys from the gang rather than stay at home. More and much of these youths atomic number 18 being driven by from their families and towards the company of strangers because of the violence that they experience from their own families (Parco, 2008). If they are unable to feel safe at home, because surely they would feel safer anywhere else. Another risk factor would be the media that glorifies violence.Everywhere you turn, you see advertisements and movies virtually people killing other people, or people stealing from other people and getting outside with it. If these are the things that the youth are being exposed to, then there is the likelihood of them wanting to be just like these hoodlums, these crooks who earn big money from doing b ad things (Killian, 2007). With the existence of these factors, pertain individuals, especially the parents should be able to see the signs of their children possibly joining these gangs. But another risk factor arises when the parents are in denial of the gang problem.If they dont give much attention and focus to it, then their children whitethorn likely be the next gang members. If these parents neglect the signs, they would often overlook anything that may be mismatched or weird with their childrens actions. Its better to be mindful of these hints, or else these children may all leftover up in gangs and be involved in gang related troubles. Another risk factor would involve the community. This is about the lack of adequate community youth support systems, which is essential in addressing the unavoidably of the youth so that they wont go towards the way of the gangs.Without adequate community support, more and more young people would opt to join gangs as they have no other me ans of sport in their spare time. With much unsupervised time, the more these youth would be involved in petty(a) crimes that could be blown to unmanageable proportions. It is best that these risk factors be properly interpreted and addressed if we wouldnt want our children to join these street gangs. This is because there is always danger associated with being a member of these gangs. No matter what benefit a member gets from joining, there is always a corresponding danger with his experience to these people.Gangs often have access to firearms and illicit drugs, hence exposing the young ones to the dangers of both elements. Fights between rival gangs are not limited to fistfights, but instead they can get seriously hurt or killed because of the guns that more or less of them posses (ClevelandClinic. org, 2008). Gangs view schools as a negative element, so they may influence their members not to go to school, thus hampering education for them. With police records filing up for the members of the gang, the more their hereafter become blurred.These police records limit future employment opportunities for these people, leaving them with minimum wage earning jobs that they can work into. Gang wars and fights between members of gangs also be sick their families and friends in danger, as they often become an easy target for their enemies. There are several signs that parents and concerned people can look into in order to know whether one is a member of a gang or not. This includes a sudden decline in the academic performance of the child, as wholesome as an increasing disinterest in school.Another sign is the withdrawal of the person from their usual family activities. They can also be heard using unknown vocabulary and peculiar clothing style or choice. They could also have a sudden change in friends and usual company. Weird hand signs are also evident, as well as having a new nickname. These people also extend to unfold bad attitude towards other people especially to the family and authorities. Aside from staying out later than usual, they also tend to require more privacy for themselves even in their homes with their families (Boone, 2007).The information regarding gangs can be put to well-behaved use by deciding what approach would be more applicable to a person who may be associated to a certain gang. This could also be used to plan an intervention measure in order to save someone from the harshness of the gang world.ReferencesBoone, D. (2007). Why Do Kids essence Street Gangs. Retrieved kinsfolk 9, 2008, from http//www. gwcinc. com/Why%20Do%20Kids%20Join%20Street%20Gangs. html ClevelandClinic. org. (2008). Gangs and Violence Retrieved September 9, 2008, from http//my. clevelandclinic.org/healthy_living/violence/hic_Gangs_and_Violence. aspx FocusAS. com. (2007). Why Do Young People Join Gangs?Retrieved September 9, 2008, from http//www. focusas. com/Gangs. html Killian, J. (2007). Why do kids join gangs? Retrieved September 9 , 2008, from http//www. news-record. com/content/2007/08/26/article/why_do_kids_join_gangs Parco, B. (2008). lack of affection, attention, fun push youth to join gangs Retrieved September 9, 2008, from http//globalnation. inquirer. net/cebudailynews/news/view/20080316-125016/Lack-of-affection-attention-fun-push-youth-to-join-gangs

History of Nursing Research Worksheet Essay Example for Free

History of breast feeding explore Worksheet Essay care for Research covers expose issues, including health promotion, human responses to illness, acute care nurse look for, symptom management, cost-effectiveness, vulnerable populations, health services, and community-based nurse studies (Henly, 2013). Sigma Theta Tau diary published by this organization is now called ImageThe Journal of breast feeding ScholarshipFirst published 1967 wideness This widely read and respected journal features peer-reviewed, thought-provoking articles representing interrogation by some of the worlds jumper lead nurse researchers.Reaching health schoolmasters, faculty and students in 90 countries, the Journal of Nursing Scholarship is centre on the health of people throughout the world. It reflects the societys dedication to providing the tools necessary to improve nursing care around the world (Hegyvary, 2011). Research in Nursing and Health First published 1978 Importance a general peer- reviewed research journal devoted to publication of a wide range of research and theory that will inform the physical exertion of nursing and other health disciplines.It has influenced on nursing tuition administration, health issues related to nursing, and testing research in practice (Research In Nursing Health , n. d. ). western Journal of Nursing Research First published 1979 Importance The dissemination of research studies, book reviews, sermon and debate, and meeting calendars, all directed to a general nursing audience. It has risen to the challenges of the ever-changing nursing research field, providing an innovative forum for nurse researchers, students and clinical practitioners to participate in ongoing scholarly debate (Conn, 2013). learned head for Nursing PracticeFirst published 1987 Importance Research and Theory for Nursing Practice (former named Scholarly Inquiry for Nursing Practice) focuses on issues relevant to improving nursing practice, education, and pati ent care. The articles strive to discuss knowledge using in its broadest sense, reflect research using a variety of methodological approaches, and combine several methods and strategies in a single study. Because of the journals international emphasis, article contributors address the implications of their studies for an international audience (Springer Publish Company, 2013).Applied Nursing ResearchFirst published 1988 Importance To present original, peer-reviewed research findings clearly and directly for clinical applications in all nursing specialties. Regular features include Ask the Experts, research briefs, clinical methods, book reviews, news and announcements, and an editorial section. Applied Nursing Research covers such areas as pain management, patient education, discharge planning, nursing diagnosis, job stress in nursing, nursing influence on length of hospital stay, and nurse/physician collaboration (Applied Nursing Research, 2013).Nursing Science QuarterlyFirst publ ished 1988 Importance Nursing Science Quarterly (NSQ) is a peer-reviewed quarterly journal make original manuscripts focusing on nursing theory development, nursing theory-based practice and quantitative and qualitative research related to existing nursing frameworks, contributed by the leading theorists, researchers and nurse executives (Nursing Science Quarterly, 2013). Conduct and engagement of Research in NursingFirst published 1982-1983Importance The Conduct and Utilization of Research in Nursing (CURN) project, an organisational approach, was designed to develop and test a model for using research-based knowledge in clinical practice settings (Morse, 2006). Annual Review of Nursing ResearchFirst published 1983 Importance The purpose of this annual review is to critically try on the full gamut of literature on key topics in nursing practice, including nursing theory, care delivery, nursing education, and the professional aspects of nursing.ARNR has brought together internati onally recognized experts in the fields of nursing, and continues to deliver the highest standards of content and authoritative reviews of research for students, researchers, and clinicians (Springer publication Company, 2013). AgenciesEstablishment date and goal or function American obligates Association (ANA) Council of Nurse Researchers Established 1972 Goal The Council of Nurse Researchers helped with the development of research endeavors, gave credit to meritorious research, and facilitated the discussion of research ideas (Burns Grove, 2009).National Institute for Nursing Research (NINR)Established 1993 Goal NINR is to promote and improve the health of individuals, families, communities, and populations. NINR supports and conducts clinical and basic research and research training on health and illness across the lifespan to build the scientific foundation for clinical practice, prevent indisposition and disability, manage and eliminate symptoms caused by illness, and improv e palliative and end-of-life care (National Institute Of Nursing Research,

Critically discuss Essay Example for Free

Critically address EssayIn put up to critically discuss the quoted statement it is first necessary to fructify what the super former relations between adults and barbarianren are. How do adults demonstrate power over children, and what part does fear play in contributing to this power. Fear is another word which give need to be classified, what frightens children and how do adults exploit this fear to exercise power over children.Throughout report and in all cultures adults exercise power over children, in all aspects of their lives from parental power, teacher/ groom regulation through to the passing of laws at national take aim that affect the lives of all children at bottom that society. S. A. Taylor (2000) cited in Doing Research with Children and teen People Edited by Fraser et al, pointed out that it is adults and not children themselves who write about, debate and ensconce what rights children should confirm. This buns be seen as an indication of the power a dults exercise over children which confines them to subordinate roles within society.Power means different thing to different people, however, it is generally thought of as the ability of individuals or groups to influence others and put forward their point of view despite the resistance or objections of others. Sometimes the direct use of force is used to exercise power, however idealogies are usually used to justify the covering of this force (Giddens 1995) cited in Doing Research with Children and younker People Edited by Fraser et al pg81. Thus the middle- senesced adage that knowledge is power fire be said to be true. Childrens knowledge can be disregarded by adults and they can still be controlled by force, (no matter how well intentioned) by the adults who are responsible for them.In order to understand the role of power in research with children and teenaged people, it is necessary to acknowledge the contribution of sociological thinking. Sociological thinking seeks to explain the role of power in peoples lives, how society as a whole works and how order is achieved (Doing Research with Children and Young People Edited by Fraser et al pg 81). In the past, such explanations emphasized the world of men with runty consideration to the world of women and less still to the worlds of children. Feminists were critical of the ideas that portrayed the family as natural and unchanging.However, Feminists ideas also came into action with each other in particular scandalous Feminists were critical of white Feminist fro ignoring the paradox of black experience in their arguments. Wright et al (1998) cited in Doing Research with Children and Young People Edited by Fraser et al pg83 Fraser et al pg83 Fraser et al pg83 Fraser et al pg83 Fraser et al pg83 acknowledged in his research the importance of Feminist researchers science of the reproduction of gender divisions within education. Research in this area has helped to address the educational performance of raw women in school.Family life and public aspects of life are important in considering the concept of power in the lives of children and upstart people. Bill and Ribbens (1995) and Ribbens and Edwards (1998) cited in Doing Research with Children and Young People Edited by Fraser et al pg 83 suggest the concepts of public and private aspects of life and family are relevant for understanding the divisions within the of people in Western society in terms of the meanings men and women associate with the idea of public and private life. These aspects can contribute to the thinking about the position of children, who have limited power within family life. Research studies involving children and young people in their home environment, are often reliant on reports by their parents or carers. young researchers, however, increasingly conduct research with children and young people via direct communication with children in order to determine their views first hand.Power elations in resear ch with children and young people are reinforced by to a greater extent general and cultural ideas that exist between adults and children in society at large (Doing Research with Children and Young People Edited by Fraser et al pg 84.) Mayall maintained that adults have divided up the social order into two major groups that is adults and children, with specific conditions surrounding the lives of each group. One f promoter that helps to maintain unequal adult-child power relations is beliefs that adult possess a superior level of knowledge. However, it is difficult to believe that an adult would have a better knowledge of what it is like to be child than the child themselves.Mayall points out that she needs to assume from a child their own unique knowledge of what it means to be a child, because although of course she has been a child herself, she may have forgotten much and childhoods vary and are likely to have changed in the time since she herself was a child. Researchers can tr y to minimise the power relation gulf between them as the adult to the child/children by trying to be one of them it is not easy to negate the interchange adult characteristic of having power over children.Christensen and Prout (2002) cited in Doing Research with Children and Young People Edited by Fraser et al pg 85, outlined four ways that children and childhood have been identified in research. The first of these is that of the child as an object this assumes that children and young people are dependent, incompetent and unable to deal appropriately with information. They are in need of care and protection by adults who undertake the role of interpreters of their lives. This orientation of research relies to a great extent on the adult perception of agencys and the accounts of adults it all but negates the views of children.The second view point is of the child as subject this puts children more to the fore in the research process and moving the research to a more child-centre d perspective. Despite the suitability of involving children it is recognised that it can be countered by judgements about their social maturity and cognitive ability. Adult researchers exert power in determining who to include e.g. only children of a certain age or intelligence level. In the third viewpoint the child is seen as a social actor. That is they take part in, change and become changed by the world in which they live. Children are seen as entities in their own right, rather than just part of a family unit, or a member of a school, and so on The final viewpoint sees the child as a participant or co-researcher.This involves the children having an active role in the research. This perception considers that children should be informed, involved and consulted about all activities that have an affect on their lives including research. In this situation the balance of power between adults and children can be volatile and changeable. The level of knowledge that the adult shares with the child, dictates the level at which the child is truly involved.

Queuing System At The Entrance Of Klimahaus Tourism Essay

Queuing System At The Entrance Of Klimahaus tourism EssayWaiting in pull for help is part of everyday life. As consumption and proceeds of assist occur simultaneously, variations in get for armed gain as well as in divine expediency era requirements pass in idle assist efficacy at some eons and the institution of queue ups at others. A queue forms whenever the want for assistance exceeds the existing service expertness. (Fitzsimmons Fitzsimmons, 2006)Experts decl atomic number 18 that no medical checkup prognosis of node service is much important than the lodge in stock to be served. (Bennett, 1990, cited in Fitzsimmons Fitzsimmons, 2006, p. 389). The time lag give birth, or more precisely the sensing of hold time, has a strong effect on nodes overall satisfaction with the service ((Pruyn Smidts, 1998). Moreover, if customers find a queue too farseeing or slow-moving they whitethorn balk and decide non to join the service strategy at all or custo mers who urinate joined the queue may renege, which means that they leave a queue before receiving service. Both baulk and reneging cook up losses in revenue and good leave to the service organization (Fitzsimmons Fitzsimmons, 2006 Ou Rao, 2003). Several service trading operations management techniques exist to reduce wait time and hence customer balking and reneging, al near ordinary is the variation of service capacity. However, a great deal the reduction of postp iment time is non feasible due(p) to the size of the queue, the blank space of the facility or terms factors in personnel which sacrifices customer wait inevitable (Pearce, 1989). If time lag time ejectnot be reduced service organizations argon advised to find ways to cave in time pass as quickly and pleasantly as mathematical (Maister, 1985, cited in Pruyn, 1998). (Pruyn Smidts, 1998) even state that the postponement environment, namely the design, decoration and stimuli which distract customer s upkeep from postponement, is a stronger determinant of service satisfaction than the actual waiting time. Therefore they advise service managers to focus less on reducing waiting times moreover to pay attention to the waiting conditions instead.The understanding of each feature of a queuing dodge provides insights and identifies management survivals for wear out customer service (Fitzsimmons Fitzsimmons, 2006). In the following the features of a queuing carcass are being described and the topical queuing system at the entrance of the Klimahaus Bremer defecaten 8 Ost, a science centre mountuated in the tourer quarter called Havenwelten in Bremer view asn/Ger many a(prenominal), is being evaluated. Subsequently, suggestions for improvement are being made whereby somatogenic, psychological and economic factors are taken into account likewise.2. Queuing SystemsFigure 1 Queuing SystemSource Fitzsimmons Fitzsimmons, 2006Queuing systems occur in a shape of forms but the common essential features of queuing systems are the calling population, the arrival passage, the queue configuration, the queue crystalise and the service process as illustrated in the figure below (Fitzsimmons Fitzsimmons, 2006).In the following the individual features of a queuing system will be explained.2.1 Calling populationFigure 2 Calling PopulationSource Fitzsimmons Fitzsimmons, 2006Arrivals represent the calling population which can consist of a homogeneous group or of several(prenominal) subpopulations. Subpopulations have different waiting expectations and place different take aims on services. In a queuing system the fig of customers requiring service can be limited or unlimited (Fitzsimmons Fitzsimmons, 2006). If the number is bounded, the number of customers outside the queuing system will depend on the number of customers already in the system and if the number is infinite, the number of customers outside the system in not affected by the number of customers already in the system (Tadj, 1995).2.2 Arrival processAny analysis of a system must begin with a complete understanding of the temporal and spatial scattering of the invite for service (Fitzsimmons Fitzsimmons, 2006). Arrival time data can be pile up and utilise to calculate interarrival times. Generally the diffusion of interarrival times is exponential function. The exponential distribution gives the opportunity that the time in the midst of arrivals will be t or less (e. g. minutes between arrival) and the so called Poisson distribution gives the probability of n arrivals during the time interval t (e. g. arrivals per hour). Both distributions represent alternative views of the same process (Fitzsimmons Fitzsimmons, 2006). diagnostic for the exponential distribution is the no memory-property which means that the probability distribution of the time until the next arrival is mugwump of the last arrival (Tadj, 1995).2.3 get hold configurationQueue configuration is the d esign of a waiting inventory system and refers to the number of queues, their locations and their spatial requirements. The queue configuration has an effect on the wait time and on customer behaviour. A queue is said to be finite if for example the spatial requirements are not sufficient to accommodate all waiting customers or if a public parking garage has not enough parking lots and arriving customers have to be turned away (Fitzsimmons Fitzsimmons, 2006). The figure below shows several alternatives of waiting configurations and their advantages and disadvantages(Fitzsimmons Fitzsimmons, 2006).Figure 3 Queue Forms and Their FeaturesSource Pearce, 1989Another alternative is a virtual queue, comm scarcely on the telephone, which can be considered most frustrating for customers because oftentimes they do not know their aspect in literary argument when they are placed on hold (Fitzsimmons Fitzsimmons, 2006).2.4 Queue discip cable systemThe queue discipline is a policy establis hed by management to select the next customer from the queue for service (Fitzsimmons Fitzsimmons, 2006). If the management applies the front-come, first-served rule (FCFS) all customers are treated fairly and are served according to their position in line. This queue discipline is said to be static. In a dynamic queue discipline, however, the next customer to be served is selected according to one or more attributes, for example in the forgetfulest-processing-time coming (SPT) customers who require nearsighted processing times are given priority. This is done by placing arrivals in different priority groups on the basis of some attributes and by applying the FCFS at bottom each group. This practice is said to minimize the average time a customer spends in the queuing system. A further procedure which is common in a medical context is triage, where priority is given to those who eudaemonia most from an immediate treatment. The preemptive priority procedure is the most respons ive queue discipline because service even is interrupted in graze to serve an arriving customer with juicyer priority. This rule is applied in emergency services or fire ambulance services (Fitzsimmons Fitzsimmons, 2006).2.5 serving processDue to variations in customer needs and server performances, the service time distribution can be of any form. However, if the service is simple to perform the service time distribution frequently is exponential (Fitzsimmons Fitzsimmons, 2006).Figure 4 Classification of go ProcessesSource Fitzsimmons Fitzsimmons, 2006According to (Fitzsimmons Fitzsimmons, 2006) thither are several possible service facility arrangementsService Facility Server ArrangementParking lot Self-servicerCafeteria Servers in serial publicationToll booths Servers in parallelSupermarket Self-serve, first stage parallel servers, second stageHospital Service in parallel and series, not all use by each patientA service facility arrangement with servers in parallel has the advantage that it is flexible in meeting variations in demand for service. The service capacity can be adjusted to meet changes in demand, especially if employees are cross-t rained (Fitzsimmons Fitzsimmons, 2006).2.6 Economic, physical and psychological aspects of customer waitingEconomic cost of waitingFor the service organization the economic cost of waiting is the wage of an idle employee at times of low demand for service. Times of high demand for service and resulting excessive wait times for customers or even the expectation of long waits can train to lost sales. For customers the cost of waiting is the forgone alternative use of that time at times of high demand for service plus the costs of boredom, anxiety, and other psychological distress (Fitzsimmons Fitzsimmons, 2006).Physical needs of waiting customersTo view as the waiting experience more comfortable it is advisable to provide shelter from rain, sun or wind. unremarkably pot relieve fatigue by aptness, stoop ing and propping themselves against bars, rails and barriers at that placefore seats, queue rails, steps or leaning bars should be provided for waiting customers if possible.Psychological needs of waiting customersAccording to 21 Fitzsimmons,James A. 2006 the apprehension of waiting often is more important to the consumer than the actual time spent waiting. If the customer expectation exceeds the perception the customer is un quelled and contributes to a bad reputation of the service organization, if the perception exceeds the expectation the customer is satisfied with the service and contributes to a good reputation of the service organization 21 Fitzsimmons,James A. 2006. Customers waiting in line should not be excluded from an concerned service. Customers should be given the feeling that the service company knows that they are there and that service has started already 22 Pearce,Philip L. 1989.Psychological and physical needs of community in queues can be met with a range of innovative queue management techniques 22 Pearce,Philip L. 1989. Some methods to .. are named by 21 Fitzsimmons,James A. 2006(Fitz..) are animation, discrimination, automation and obfuscation. Animation and distraction lead to a shorter perceived waiting time because the attention is drawn away from the internal clock (Pruyn Smidts, 1998). 22 Pearce,Philip L. 1989 considers instruction provision as one of the most important methods because defeat, boredom and a range of negative emotional effects follow from this lack of teaching to the waiting to the waiting public.3. The Queuing System of the Klimahaus Bremerhaven 8 OstThe Klimahaus is a science centre in Bremerhaven which opened on 27th of June 2009. On an exhibition area of 11,500 m and 143 exhibition rooms the experiential museum presents data, facts and phenomena on modality and climate protection. As a relatively new attraction the museum experiences high demand and congestion, especially at weekends, holidays and in the summer season. 600,000 visitors were calculated per year but due to the novelty effect, the Klimahaus could welcome its millionth visitor after only 15 months of operation, on 22nd of September 2010. (www.klimahaus.de). Considering the opening hours of the Klimahaus this gives on average 243visitors/hour, whereby the Klimahaus experiences square variations in demand which lead to waiting times up to 2,5 hours at some times. There are numerous attractions in the Havenwelten and the risk is high that people change their mind when confronted with a long queue in front of the ticket answer and go somewhere else. To keep the high level of visitor numbers even when the novelty effect has faded, the Klimahaus relies on satisfied customers who recommend a Klimahaus-visit to others and are instinctive to visit the museum repeatedly, despite long waiting times that can occur. In the following the current queuing system of the Klimahaus is being evaluated and the physical, behavioural, and economic aspects of the consumer waiting experience are taken into account in order to nominate suggestions for the improvement of the waiting line management.3.1 Calling populationThe calling population of the Klimahaus consists of walk-in customers (either locals or tourists) who occur randomly and groups or school classes with reservations. For a group reservation a minimum of 15 people is required. While walk-in customers are not controllable group arrivals are planned and hence controllable. The number of walk-in customers is infinite whereas the number of groups on a specific day can be considered finite because group reservations need to be made at least a day in advance. Hence, the probability of future group arrivals on a specific day depends on the number of groups currently in the system. Groups and school classes can be expected to have significant rase waiting expectations compared to walk-in customers due to their reservations which are linked to a front of the line-service upon arrival. Locals, again, can be expected to have lower waiting expectations than tourists because they can choose a less busy day or time for their Klimahaus-visit or at least buy their tickets at less busy times to avoid waiting in line. Tourists oftentimes come to Bremerhaven at weekends or during holiday seasons and therefore may expect a longer wait. However, within each subpopulation the waiting expectations may differ significantly among customers due to their respective opportunity costs.3.2 Arrival processThe collection of arrival time data is necessary to get an understanding of the temporal and spatial distribution of demand for service in order to send periods of high and low demand for service and measures to better match service capacity with service demand. However, no service demand data was available for this motif except from the visitor number of 1,000,000 on the 22nd of September 2010 which is published on the homepage and could be used to calcu late the average number of visitors per hour in the first 15 months of operation with 243. As many other service organizations the Klimahaus experiences variable demand and variable service times which leads to waiting times up to 2.5 hours at busy times. Those variations in demand affect the requirements for service capacity. When possible, the number of servers is adjusted to match changes in demand. Although the cross-trained employees of the Klimahaus are a perfect basis for adjusting service capacity to changes in demand, for the museum this strategy is only comely to a small extent. The exhibition itself has limited spatial capacity and increasing the level of staff would result in overcrowding and reduce the level of security. Therefore, this paper is going to focus on other strategies to reduce waits or to make them at least more tolerable.3.3 Queue configurationAs the figure below shows, the Klimahaus applies a one line multiserver model where customers form a integrity line and are served by the first server available.Figure 5 Ticket counter at the KlimahausSource www.nordsee-zeitung.deFigure 6 Queue configuration of the Klimahaus Bremerhaven 8 Ost(Fitzsimmons Fitzsimmons, 2006) name the advantages and disadvantages of a single queue as followsGenerally a single queue arrangement guarantees fairness because customers are served in order of their arrival (first-come, first-served). However, as can be seen on Picture 2, the waiting line system of the Klimahaus does not hold on people from cutting-in because the biggest part of the waiting line is in front of the Klimahaus at the so called Havenplaza where no barrier ropes are being used. This fact, on the other hand, allows single members of a family or small group to leave the queue and e. g. to have a look at the Klimahaus -shop or the nearby shopping centre or to get some brochures from the tourist information.Since there is only one queue, customers do not feel anxious about whether they have selected the hurrying line.Wait time is affected by the design of the waiting line system the single line model is more efficient in terms of reducing the average time that customers spend waiting in line.Figure 7 HavenplazaSource www.nordsee-zeitung.deA single-line approach comes with higher spatial requirements compared to a multiple lines approach because there is one long queue instead of several shorter queues. The Klimahaus-queue can be said to be infinite because the Havenplaza in front of the museum and the parking garages in the immediate vicinity offer sufficient capacity to accommodate arriving customers.Figure 8 Queue configuration of the Klimahaus Bremerhaven 8 Ost (high demand)Customers may interpret a long queue as evidence of a long wait and decide not to join the queue. (Fitzsimmons Fitzsimmons, 2006) suggest hiding a long waiting line from customers, e. g. by integrating the queue into the design of the building, to prevent customers from balking. The approach of integrating the queue into the design was not adopted by the museum, presumably due to space or cost reasons or because it is not that common for museums.(Pearce, 1989) on the other hand states that customers may pick to see the end of a queue because it gives them a feeling of certainty. Although, in case of the Klimahaus visual entrance from the back of queue is poor as can be seen on Picture 2. However, to avoid frustration among arriving customers and to give them a feeling of certainty in order to make them join the queue, it is advisable to make information on the expected waiting time available (Fitzsimmons Fitzsimmons, 2006 Pearce, 1989).The single queue arrangement proves to be flexible at times of high demand because the number of servers can be adjusted, especially if employees are cross trained as it is the case in the Klimahaus. However, as mentioned earlier the Klimahaus itself has limited spatial capacity and increasing the level of staff would result in overcro wding and reduce the level of security.A disadvantage of the single line-approach is that people have to stand in line in contrast to the take a number-approach where people are free to wander around. The take a number-approach can be an attractive alternative because there is no need for a formal line and customers could go to the Klimahaus-shop or to the nearby shopping centre. On the other hand, customers have to stay alert otherwise they risk missing their turns for service.Queue width as well as plays an important role. In contrast to a one-person wide queue, a wider queue like the one used by the Klimahaus is desirable because it enables family members to stand side by side in the queue which enables communication and children have more room to stretch and interact (Pearce, 1989).When considering the physical needs of people waiting in line, it can be noted that the Havenplaza is a roofed hall which provides shelter from the sun or rain and has public toilets. On the other h and customers waiting in line have no possibilities to sit or lean (e. g. on hand rails) to relieve from fatigue.As mentioned earlier, animation and distraction lead to a shorter perceived waiting time because the attention is drawn away from the internal clock (Pruyn Smidts, 1998). Above the ticket counter there is a tv screen that shows pictures and information regarding the exhibition but unfortunately it is only visible for customers waiting inside the building. When the wait time is especially long, occasionally an employee is deployed at the Havenplaza in order to answer questions of waiting customers, to hand out flyers to adults or balloons, gummi bears etc. to children. Moreover, sometimes the mascot of the Klimahaus, Max the climate mouse, animates children waiting in line.3.4 Queue disciplineGenerally the queue discipline of the Klimahaus is first come, first service, except for groups with reservations who benefit from a common front of the line service upon arrival.(Fr iedman Friedman, 1997) states that customers with high opportunity costs, e. g. tourists who have a short stay in Bremerhaven or explicitly come to Bremerhaven for a Klimahaus-visit or customers who just do not like to wait in line, might be highly sensitive to long waits and be willing to pay a premium for a faster service in a separate line to avoid waiting. Waiting line partitioning might be an option for the Klimahaus to reduce waiting for the customers in the regular queue and the customers in the fast queue. If the premium covers the cost of the additional server, waiting line segmentation is a simple, cost-free strategy for increasing profit, employment, efficiency and customer satisfaction (Friedman Friedman, 1997).3.5 Service processNo service time data is available and need to be collected but the service time distribution can be considered to be exponential because the service is simple to perform.In case of the ticket counter at the entrance of the Klimahaus servers are arranged in parallel which has the advantage that variations in demand for service could be met by adjusting the number of servers to meet demand. Nevertheless, to avoid overcrowding in the exhibition there are on a regular basis three but no more than four servers at the ticket counter at times of high demand.(Fitzsimmons Fitzsimmons, 2006) advise service managers to keep in mind that sustained pressure to hurry may affix the rate of customer processing, but it also sacrifices quality.4. Suggestions for ImprovementSince adjusting service capacity to meet high levels of demand cannot be considered a reasonable strategy for the Klimahaus to reduce waiting, other strategies like differential curb to encourage customers to use the off-peak hours should be taken into consideration (Fitzsimmons Fitzsimmons, 2006). Usually in the latter part of the day, the Klimahaus experiences lower demand because a visit takes 3 5 hours on average. For this reason it might be profitable to o ffer an afternoon ticket which is cheaper the usual day-ticket to level demand. It needs to be analysed if such an offer would have a cannibalizing effect or a positive effect on revenue from entrance tickets.A further strategy to reduce waiting is waiting line segmentation which could also be an option for the Klimahaus because it is a simple, cost-free strategy for increasing profit, employment, efficiency and customer satisfaction. However, before implementing such a strategy the service organization would have to do some testing to determine the optimal size of premium and to determine the acceptance of customers. Customers who decide to stay in the regular queue or cannot afford to take the more expensive fast lane might perceive this practice as unfair and catering to the exuberant which can result in a negative image of the Klimahaus (Friedman Friedman, 1997).Due to the significant variations in demand waiting in line for a ticket is inevitable and therefore the waiting exp erience should be made as pleasant as possible under the given circumstances. Because the biggest part of the queue forms not in the Klimahaus itself but at the Havenplaza, the Klimahaus could be advised to prove the possibility of installing benches or leaning bars for the customers to relief from fatigue.Customers waiting in line should not be included in an attentive service and questions of arriving customers should be answered to give them security. If it is not feasible for cost reasons to have an employee answering questions in person, wait time-signs should be set and a FAQ-sheet which all important information should be made available to arriving customers. alike display panels or sheets (alongside the queue) which ask the waiting public questions, or which set them tasks to solve, assist both the information needs of the public and their perception of time (Pearce, 1989). Furthermore, the mascot, Max the climate mouse, is relatively unknown and could be used more often to animate children waiting in line with their families.5. ConclusionBy analysing the features of the queuing system at the entrance of the Klimahaus useful insights could be gained. Due to significant variations in service demand, waiting in line to get a ticket is inevitable at times when service demand exceeds service capacity. increase the number of servers at the ticket counter at times of high demand would compound overcrowding in the spatial limited exhibition and therefore increasing service capacity to meet demand cannot be considered an appropriate strategy for the Klimahaus to reduce waiting. Further investigation on this topic could be helpful to identify the optimal staffing level in consideration of the space limitation of the museum and to develop measures to reduce overcrowding in the exhibition. likely strategies to shorten waits could be identified like waiting line segmentation or price differentiation. However, in order to effectively implement those strategies, se rvice demand and service time data need to be collected and analysed. Moreover, by taking into account the physical and psychological needs of customers waiting in line, methods to make wait more tolerable could be identified to improve customers queuing experience, A more pleasant queuing experience can not only reduce balking, reneging and thus lost sales for the Klimahaus but also increase the customers overall satisfaction with the service.

Compensation techniques for 50 Gbps Duobinary System

Compensation proficiencys for 50 Gbps Duobinary ashes of rulesPre, Post and aggregate Compensation techniques for 50 Gbps Duobinary frameRupinder Kaur, Sanjeev DewraAbstractIn this paper, the performance of duobinary governance is analyzed by using different strewing stipend techniques. The dispersion recompense techniques tested are Pre Compensation, Post Compensation and Mix Compensation. These techniques are applied to duobinary placement, which operates at a topographic point rate of 50 Gbps. It is found that for 50 Gbps system, Mix Compensation technique shows bankrupt performance matrices like quality agentive role (i.e. 7.54 at 25 km)and eccentric person error rate (i.e. 7.52e-15 at 25 km) as compared to other techniques.Keywords Mach-Zender Intensity Modulator (MZIM), Single Mode fictitious character (SMF), Q-factor, Bit Error assess (BER), Low Pass Filter (LPF)IntroductionFor eminenter entropy rates, research in optic communications is being constantly driv en by requirements. At a minimum bandwidth cost, Fiber Optics has reorganized the selective information communication technology by examining the limits of blue-pitched speed network accessibility for the end drug abusers 1. In high speed optic communication system duobinary modulation is a valuable solution that provides the better unearthly efficiency and minimizes the performance degradation due to the nonlinear effects and dispersion 24. Due to the promptly ripening capacity requirements for long distance transmitting, fiber optic communications are advancing into higher bit rate enabled 5. To increase the capacity of system and to reduce the performance degradation caused by transmission impairments, regular investigation is subjective 6. Duobinary formats are known for their high tolerance to residual chromatic dispersion and pocket-size spectral occupancy 7. These features make them very attractive for both high spectral efficiency and high data rate. For high spee d systems, Duobinary showing has become an essential transmission format as the broadband networks and the bandwidth requirement has increased. By selecting suitable whim shaping, the selection of visual modulation format has become an essential standard in any high speed link design. This optical signal pre-distortion based pulse shaping increases the dispersion tolerance related performances considerably 8, 9.In long distance transmission systems, Fiber chromatic dispersion is one of the most severe limiting factor. If the fiber transmission length exceeds several(prenominal) tens of kilometers, dispersion effect lav cause intolerable amounts of distortions that ultimately lead to errors. Therefore it is necessary to use dispersion requital devices such as dispersion compensating fiber (DCF) 10, 11 to overcome dispersion effect and accordingly decrease the nonlinear distortion. In this study, we propose three DCF compensation scheme, pre-compensation and post-compensation scheme. Simulation studies show that mix compensation scheme is the best. It fuel greatly reduce the influences of the fiber nonlinearity and increase the transmission distance greatlySystem SetupDuobinary Transmitter is designed with laser diodes, filters, modulators and each components which are essential to build an optical network. This pretext is carried out to observe the comparative study with various compensation techniques in the presence of chromatic dispersion. Duobinary signal is launched over DCF SMF spans of 5 km and 25 km each for post, pre and symmetric compensation schemes. Duobinary modulation is achieved by driving an external Mach-Zehnder intensity modulator. MZIM has three inputs, one for laser diode and other for data from the channels. It converts the electric signal into optical signal. On the receiver side the output of the Lorentzian optical filter a photodiode converts the optical signal into an electrical signal an electrical low pass Bessel filter fol lows the PIN photodiode. This has a cut-off relative frequency 193.41449 THz. Finally at the output of the low pass filter visualization tool called Scope, BER estimation Q meter. It is an optical or electrical oscilloscope with numerous data processing options, eye display and BER estimation features. The system setup of 50 Gbps duobinary transmission with pre, post and symmetric compensation techniques is as shown in figure below.Fig. 1 Duobinary system with Post Compensation techniqueFig. 2 Duobinary system with Pre Compensation techniqueFig. 3 Duobinary system with Mix Compensation techniquePre-compensation scheme achieve dispersion compensation by place the DCF in the lead a certain conventional single-mode fiber, or after the optical transmitter. Post -compensation scheme achieve dispersion compensation by place the DCF after a certain conventional single-mode fiber, or before the optical transmitter. Mix compensation scheme is consist of post-compensation and pre-compensati onResult and DiscussionTo evaluate the performance of 50 Gbps duobinary system several measurements for Pre, Post and Symmetric compensation techniques were taken. The quality factor versus transmission distance is as shown in Fig.4. The graph shows that the performance of pre, post and mix compensation is compared by varying the distance from 5 to 30 km.Fig.4 Quality Factor vs contagious disease distanceFig.4 depicts quality factor versus transmission distance graph. It is observed that by increasing the transmission distance from 5 to 30 km, Quality factor is decreasing. The variation in Q factor is 22.26 to 5.67 for mix compensation, 19.47 to 4.84 for post compensation and 14.04 to 4.69 for pre compensation. It is observed that maximum quality factor is shown from mix compensation technique i.e. 7.54 (at 25 km transmission distance) as compared to post and pre compensation techniques which is 6.33 and 6.12 respectively.Fig.5 Bit error rate vs Transmission distanceFig. 5 shows th e transmission distance vs bit error rate graph. The variation in BER from different compensation techniques is 4.05e-72 to 8.20e-8 for mix compensation, 4.61e-58 to 6.57e-7 for post compensation and 4.50e-45 to 4.48e-5 for pre compensation. This simulation result shows that at 25 km transmission distance, the minimum bit error rate value is obtained by mix compensation technique which is 7.52e-15 whereas the bit error rate value for post and pre compensation technique is 3.04e-13 and 1.75e-10 respectively.Fig. 6 Quality Factor vs excitant PowerFig. 6 display the influence of signal input power on the performance of duobinary system. From the graph, we can find that as the signal input power increases, quality factor increases upto certain limit, after which it starts falling. This can be understood from the fact that for low powers, the performance of system improves with the increase in input power. However, at higher powers, the wavelengths tend to overlap each other causing mor e dominance of non-linear effects and thence reduce the quality factor. From the graph it also concluded that the quality factor of mix compensation is great than the other two kind of compensation techniques.ConclusionIn this paper, we investigate the behavior of Pre, Post and Mix compensation techniques on the basis of quality factor and bit error rate at 50 Gbps system and conclude which compensation technique perform better. From the comparative performance analysis for different compensation techniques, it is found that mix compensation is better than pre and post compensation techniques for long haul communication system. It whitethorn also be concluded that for lower laser input power, quality factor is better for all compensation techniques.ReferencesX. Zheng, F. Liu, and P. Jeppesen, Receiver optimization for 40-Gb/s optical duobinary signal, IEEE Photon. Technol. Lett., vol.13, pp.744746, July 2001.Yogesh Chabra, R.S.Kaler,comparison of various compensation techniques at high bit rates using CSRZ formats, Optik (Stuttg),121(9), 813817, 2010.Dewra, Sanjeev, and R. S. Kaler. Performance evaluation of an optical network based on optical cross add drop multiplexer,Journal of optic Technology, 2013, pp. 502-505.Barnoski, Michael, ed. Fundamentals of optical fiber communications, Elsevier, pp. 109-133, 2012.S. L. Jansen, G.-D. Khoe, H. de Waardt, S. Spalter, C. J. Weiske, A. Schopflin, S. J. Field, H. E. Escobar, and M. H. Sher, Mixed data rate and format transmission (40 Gb/s NRZ, 40 Gb/s duobinary, 10 Gb/s NRZ) using mid-link spectral inversion, Opt. Lett., vol. 29, no. 20, pp. 23482350, Oct. 2004.W. 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