Movie Beauty And The Beast - 1324 Words

When I was a young girl my favorite disney movie was Beauty and the Beast. I must have been around five years old when I saw it for the first time and I was infatuated with what I thought the story line was. I five year old self understood the movie plot being about a smart, beautiful young woman rejecting the boy who wanted her only to then fall in love with a prince who would be her one true love. My parents, brother, and I would all sit down to watch this movie time and time again and when I was young, this is the plot I saw every time. As I ve grown up I have come to realize not all of what i thought was true. Of course, there are elements of what I thought that are true. Belle is obviously a smart, beautiful woman and she does fall†¦show more content†¦She is being talked about by the townspeople as not acting as though a stereotypical pretty young girl should. And because she doesn t conform to the stereotypes she is made to feel different and strange. The next example of sexism is in the character of Gaston. Gaston does conform to the stereotypical definiton of how a male should be. He is tall and very muscular and always has three girls following him, constantly swooning over him, only to objectify themselves. He also has stereotypical idea of the female he wants in his life. He tells Belle that her dreams are on the verge of becoming true and when she asks how he responds Here, picture this: A rustic hunting lodge, my latest kill roasting on the fire, and my little wife massaging my feet, while the little ones play on the floor with the dogs. We ll have six or seven. While this line is clearly sexist, five year old me did not pick up on this. I simply thought that Gaston was a self- obsessed person who did not really care for belle but at this point I didn t understand sexism. You can also see Gaston s sexist attitude towards Lefou. Lefou, unlike Gaston, does not conform to the stereotypical male characteristics. He is shorter, not muscular and does not have women falling for him left and right. He is seen much more as Gaston s sidekick or little friend rather than a man in his own sense. It is hard to imagine Lefou being Gaston s sidekick if he were of the same height and build as him. In the

The Benefits of the Death Penalty - 541 Words

If a person breaks the law and commits murder, then they should be given the same treatment and be put to death, by the means of the death penalty, capital punishment. If the population knew that the death penalty was the punishment for murder they would think twice before committing such an act. It is expensive to house a death row inmate and the cost to the American tax payer is millions of dollars a year. It is very expensive because a death row inmate requires one officer to each death row inmate for a twenty-four hour, around the clock period of supervision. Last if we allow murderers to escape the death penalty they can be paroled after a period of time, or escape, and may retaliate, harming, witnesses or family of the deceased. If people who would commit murder knew they would be executed by legal means for their crime, they may think twice before committing such an act. If life in prison is all that they would be punished with, they probably would not give murder a second tho ught. Most life sentences are misunderstood by the public. A life sentence may be different in different states. An example of a life sentence is if a person is sentenced to life, and the law of the state reads seven years as a life sentence, every year after the seventh year mark, the prisoner would be eligible for parole. Prisons have psychologists and psychiatrists on staff that can deem a prisoner rehabilitated and if the parole board agrees they could be released on parole. An interviewShow MoreRelatedBenefits Of The Death Penalty Essay1295 Words   |  6 PagesJonathan Lewin Miss Woods English 2 Honors - Period 6 22 February 2016 Benefits of the Death Penalty One of the most debated issues, whether capital punishment, also known as the death penalty, should be banned or still be used, is still a widely disputed issue at the heart of political debate. Many states recently have been abolishing capital punishment. Yet, as of October 2014, support for capital punishment is still strong as three fifths of Americans continue to back capital punishment. ItRead MoreEssay on The Benefits of the Death Penalty1109 Words   |  5 Pagesput to death by means of the death penalty in 2004. Whether it had been by lethal injection, electrocution, gas chamber, hanging or even the firing squad was it the correct thing to do? This is a commonly asked question concerning this controversial topic. Should these criminals, murders, and rapists have be put to death? Is the death penalty a proper form of punishment? As Sellin stated, Whenever hurt is done you shall give life for life, eye for eye, tooth for tooth... (9). Is the death penaltyRead MoreBenefits Of Reforming The Death Penalty Policy1296 Words   |  6 Pagesfamous War on Drugs. Ever since the 1970’s, prison population has been on the rise, which has had a direct effect on taxpayers, more than any other group. In this paper, I will explain the benefits of reforming the death penalty policy, which, if applied to all felons convicted of first-degree murder, would benefit the economy and society as a whole. Economic reasons The data In the year 2010, Vera Institute of Justice’s Center on Sentencing and Corrections performed a thorough survey on forty states’Read More Benefits of the Death Penalty Essay1545 Words   |  7 Pagessomeone you know? He should receive the death penalty! Murderers and rapists should be punished for the crimes they have committed and should pay the price for their wrongdoing. Having the death penalty in our society is humane; it helps the overcrowding problem and gives relief to the families of the victims, who had to go through an event such as murder. Without the death penalty, criminals would be more inclined to commit additional violent crimes. Fear of death discourages people from committingRead MoreThe Death Penalty : A Social Necessity1146 Words   |  5 PagesThe Death Penalty: A Social Necessity The death penalty has been an accepted practice of society for centuries. Michael Reggie reports the earliest legal records of the death penalty are â€Å"In the 18th Century BC, the Code of King Hammurabi of Babylon codified the death penalty for twenty five different crimes† (History of the Death Penalty web). In the more recent years capital punishment has been put under a microscope and the focus of intense debate. Regardless of which side of the argumentRead MoreThe Death Penalty Should Be Abolished1312 Words   |  6 Pagesstatement. Given the conditions presented there is no moral reason to continue using the death penalty. In this case the death penalty cannot be said to be optimific (producing the best result) unless you hold the value of justice ahead of the value of society. To argue for this perspective requires an extremely skewed perception of value and if, as I will show, the death penalty provides no tangible benefit to society its use should be discontinu ed. Consequentialism states â€Å"an action is morallyRead MoreThe Death Penalty Should Be Endorsed: An Opinion Essay649 Words   |  3 PagesThe Death Penalty: The debate regarding the death penalty is an issue that has continued to attract huge controversies in the past few years. Consequently, public opinion about the death penalty has relatively changed in the recent years though this concept has less support unlike mid-1990s. The main reason for the minimal support of the death penalty originates from the fact that its proponents cite similar reasons to those provided by its supporters two decades ago. The major factors that haveRead MoreDeath Penalty Argument Essay683 Words   |  3 PagesThe Death Penalty A society operates around communities of people who work together and do their part to form a functional place to live. Many people benefit from others throughout society without even knowing it. Society functions and benefits from people doing their part to keep our community safe and people benefit from society as well, but there is an exception. Criminals who have committed a crime that has placed them in prison for the rest of their life, without the possibility of paroleRead MoreThe Death Penalty Should Not Be Considered Unethical Or Inhumane1569 Words   |  7 Pagessuch as the death penalty should not be considered unethical or inhumane. The death penalty may be difficult to understand, but based on recent studies, it is nearly proven that the death penalty will save money along with many other benefits. By using the death penalty it will eliminate same person crimes, will cause fear, will save money, and will open a jail cell. Also, fewer criminals will provide more food, sh elter and drinks for crimes that aren’t as bad. By using the death penalty it would benefitRead MoreDeath Penalty Essay1155 Words   |  5 PagesDeath Penalty Virtually every major program designed to address the underlying causes of violence and to support the poor, vulnerable, powerless victims of crime is being cut even further to the bone†¦ In this context, the proposition that the death penalty is a needed addition to our arsenal of weapons lacks credibility†¦ Scott Harshbarge, Attorney General of Massachusetts Across the United States, police officers are losing their jobs, prisoners are obtaining parole early, courts are

Nano Station M2/M5 Loco Manual Free Essays

string(150) " the ground wire as a part of the safety certification, modification or misuse can provide a shock hazard that can result in serious injury or death\." Models: NanoStation M2/M5 NanoStation Loco M2/M5/M900 Introduction Introduction Thank you for purchasing a Nanostation M series product. This is a point-to-point CPE wireless device. This Quick Start Guide is for use with the following models: Model NanoStation M2 NanoStation M5 NanoStation Loco M2 NanoStation Loco M5 NanoStation Loco M900 Operating Frequency 2403-2475 MHz 5170-5875 MHz* 2402-2482 MHz 5170-5875 MHz* 904-926 MHz Ethernet Ports 2 2 1 1 1 * Only 5745-5850 MHz is supported in the USA and Canada Package Contents UB I NE T UB I ET ITI N QU RKS WO ITI N QU UB I NE T UB I ET ITI N QU RKS WO ITI N QU NanoStation 24v PoE Adapter Power Cord Mounting Ties * Products may be different from pictures and are subject to change without notice. We will write a custom essay sample on Nano Station M2/M5 Loco Manual or any similar topic only for you Order Now Installation Requirements †¢ 10 mm wrench †¢ Shielded Category 5 (or above) cabling should be used for all wired Ethernet connections and should be grounded through the AC ground of the PoE. We recommend that you protect your networks from the most brutal environments and devastating ESD attacks with industrial-grade shielded Ethernet cable from Ubiquiti Networks. For more details, visit www. ubnt. com/toughcable 1 Quick Start Guide Hardware Overview Secondary Ethernet Port* * Secondary Ethernet Port included only on NanoStation M2 M5 Secondary Main Reset Main Ethernet Port Note: Secondary Ethernet Port is capable of 24V Power over Ethernet output which can provide power to a secondary device. It can be enabled using the AirOS interface. LEDs LAN1 LAN2 Power The Power LED will light steady green when properly connected to a power source. LAN1 WAN/Main Ethernet The LAN1 Ethernet LED will light steady green when an active Ethernet connection is made to the Primary Ethernet Port and flash when there is activity. LAN/Secondary Ethernet The LAN2 Ethernet LED (on NanoStation M2/M5 only) will light steady green when an active Ethernet connection is made to the Secondary Ethernet Port. Signal These LEDs display the signal strength. LAN2 2 Typical Deployment Typical Deployment Connect the Power Cord to the PoE Adapter and a power outlet LAN or Computer to Ethernet Port labeled LAN on PoE Adapter Ethernet Port on Ubiquiti Device to Ethernet Port labeled POE on PoE Adapter Note: Shielded Category 5 (or above) cabling should be used for all wired Ethernet connections and should be grounded through the AC ground of the PoE. Quick Start Guide Accessing AirOS 1. Make sure that your host machine is connected via Ethernet to the Ubiquiti Networks device (as shown on previous page). 2. Configure the Ethernet adapter on your host system with a static IP address on the 192. 168. 1. x subnet (e. g. 192. 168. 1. 100). 3. Launch your Web browser and type http://192. 168. 1. 20 in the address field and press ent er (PC) or return (Mac). 4. Enter ubnt in the Username and Password fields. Select your country from the Select Your Country drop-down. To use the product you must agree to the terms of use. To do so, click I agree to these terms of use. Click Login. 5. The AirOS Interface will appear allowing you to customize your settings as needed. 4 Ubiquiti Networks Wiki and Forum Ubiquiti Networks Wiki and Forum Ubiquiti Networks has an online Wiki with Manuals, Guides, and Information. It is located at www. ubnt. com/wiki. Another great resource is the Ubiquiti Networks Forum. You can post and view comments, questions, and answers with other forum members and Ubiquiti staff at www. ubnt. com/forum. 5 Quick Start Guide Installer Compliance Responsibility Devices must be professionally installed and it is the professional installer’s responsibility to make sure the device is operated within local country regulatory requirements. Since Ubiquiti Networks equipment can be paired with a variety of antennas and cables, the Antenna Gain, Cable Loss, and Output Power fields are provided to the professional installer to assist in meeting regulatory requirements. Note: This product is locked to the US Country Code to ensure compliance with FCC regulations. 6 Specifications Specifications NanoStation M Enclosure Size Weight Max Power Consumption Power Supply Power Method Operating Temperature Operating Frequency M2 M5 Networking Interface 2403 MHz – 2475 MHz 5470 MHz – 5825 MHz 2 10/100BASE-TX Ethernet Ports 29. 4 x 8 x 3 cm 0. 5 kg 8 Watts 24V, 1A PoE Supply Included Passive PoE (Pairs 4, 5+; 7,8 return) -30 ° to 75 ° C NanoStation Loco M Enclosure Size Weight Max Power Consumption Power Supply Power Method Operating Temperature Operating Frequency Loco M900 Loco M2 Loco M5 Networking Interface 904 – 926 MHz 2412 MHz – 2462 MHz 5470 MHz – 5825 MHz 1 10/100BASE-TX Ethernet Ports 163 x 31 x80 mm 0. 8kg 5. 5 Watts 24V, 0. 5A PoE Supply Included Passive PoE (Pairs 4, 5+; 7,8 return) -30 ° to 80 ° C 7 Quick Start Guide Safety Notices 1. Read, follow, and keep these instructions. 2. Heed all warnings. 3. Only use attachments/accessories specified by the manufacturer. WARNING: Do not use this product in location that can be submerged by water. W ARNING: Avoid using this product during an electrical storm. There may be a remote risk of electric shock from lightning. Electrical Safety Information 1. Compliance is required with respect to voltage, frequency, and current requirements indicated on the manufacturer’s label. Connection to a different power source than those specified may result in improper operation, damage to the equipment or pose a fire hazard if the limitations are not followed. 2. There are no operator serviceable parts inside this equipment. Service should be provided only by a qualified service technician. 3. This equipment is provided with a detachable power cord which has an integral safety ground wire intended for connection to a grounded safety outlet. . Do not substitute the power cord with one that is not the provided approved type. Never use an adapter plug to connect to a 2-wire outlet as this will defeat the continuity of the grounding wire. b. The equipment requires the use of the ground wire as a part of the safety certification, modification or misuse can provide a shock hazard that can result in serious injury or death. You read "Nano Statio n M2/M5 Loco Manual" in category "Essay examples" c. Contact a qualified electrician or the manufacturer if there are questions about the installation prior to connecting the equipment. 8 General Warranty General Warranty UBIQUITI NETWORKS, Inc (â€Å"UBIQUITI NETWORKS†) represents and warrants that the Products furnished hereunder shall be free from defects in material and workmanship for a period of one (1) year from the date of shipment by UBIQUITI NETWORKS under normal use and operation. UBIQUITI NETWORKS sole and exclusive obligation under the foregoing warranty shall be to repair or replace, at its option, any defective Product that fails during the warranty period. The expense of removal and reinstallation of any item is not included in this warranty. The foregoing warranty is exclusive and in lieu of all other warranties, express or implied, including the implied warranties of merchantability and fitness for a particular purpose and any warranties arising from a course of dealing, usage or trade practice with respect to the products. Repair or replacement in the manner provided herein shall be the sole and exclusive remedy of Buyer for breach of warranty and shall constitute fulfillment of all liabilities of UBIQUITI NETWORKS with respect to the quality and performance of the Products. UBIQUITI NETWORKS reserves the right to inspect all defective Products (which must be returned by Buyer to UBIQUITI NETWORKS factory freight prepaid). No Products will be accepted for replacement or repair without obtaining a Return Materials Authorization (RMA) number from UBIQUITI NETWORKS. Products returned without an RMA number will not be processed and will be returned to Buyer freight collect. UBIQUITI NETWORKS shall have no obligation to make repairs or replacement necessitated by catastrophe, fault, negligence, misuse, abuse, or accident by Buyer, Buyer’s customers or any other parties. The warranty period of any repaired or replaced. Product shall not extend beyond its original term. Warranty Conditions The foregoing warranty shall apply only if: (I) (II) The Product has not been subjected to misuse, neglect or unusual physical, electrical or electromagnetic stress, or some other type of accident. No modification, alteration or addition has been made to the Product by persons other than UBIQUITI NETWORKS or UBIQUITI NETWORK’S authorized representatives or otherwise approved by UBIQUITI NETWORKS. The Product has been properly installed and used at all times in accordance, and in all material respects, with the applicable Product documentation. All Ethernet cabling runs use CAT5 (or above) shielded cabling. (III) (IV) Disclaimer: UBIQUITI NETWORKS does not warrant that the operation of the products is error-free or that operation will be uninterrupted. In no event shall UBIQUITI NETWORKS be responsible for damages or claims of any nature or description relating to system performance, including coverage, buyer’s selection of products for buyer’s application and/or failure of products to meet government or regulatory requirements. Returns In the unlikely event a defect occurs, please work through the dealer or distributor from which this product was purchased. 9 Compliance Compliance FCC Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operations of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. For MPE and antenna usage details, please visit our website at www. ubnt. com/compliance Industry Canada Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio inteference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e. . r. p. ) is not more than that permitted for successful communication. This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: 1. This device may not cause interference, and 2. This device must accept any interference, including interference that may cause undesired operation of the device. En vertu des reglements d’Industrie Canada, cet emetteur radio ne peut fonctionner avec une antenne d’un type et un maximum (ou moins) approuves pour gagner de l’emetteur par Industrie Canada. Pour reduire le risque d’interference aux autres utilisateurs, l’antenne type et son gain doivent etre choisies de facon que l’equivalent puissance isotrope rayonnee equivalente (pire) n’est pas plus que cela autorise pour une communication reussie. Et Cet appareil est conforme a la norme RSS Industrie Canada exempts de licence norme (s). Son fonctionnement est soumis aux deux conditions suivantes: 1. Cet appareil ne peut pas provoquer d’interferences et 2. Cet appareil doit accepter toute interference, y compris les interferences susceptibles de provoquer un fonctionnement du dispositif. 10 Compliance RF Exposure Warning The transceiver described here emits radio frequency energy. Although the power level is low, the concentrated energy from a directional antenna may pose a health hazard. Do not allow people to come closer than 55. 53 cm to the antenna when the transmitter is operating. Additional information on RF exposure is available on the Internet at www. fcc. gov/oet/info/documents/bulletins L’emetteur-recepteur decrit ici emet de l’energie de frequence radio. Bien que le niveau de puissance est faible, l’energie concentree a partir d’une antenne directionnelle peut presenter un danger pour la sante. Ne pas permettre aux gens de se rapprocher de 55. 53 cm a l’antenne lorsque l’emetteur est en marche. Des renseignements supplementaires sur l’exposition aux RF est disponible sur Internet a www. fcc. gov/oet/info/documents/bulletins CE Marking CE marking on this product represents the product is in compliance with all directives that are applicable to it. Alert sign! Follows CE marking Alert sign must be indicated if a restriction on use applied to the product and it must follow the CE marking. NB-Identification number (if there is any) Notified body number is indicated if it is involved in the conformity assessment procedure. Please check the CE mark on the product label to find out which notified body was involved during assessment. 11 English We recommend that you protect your networks from the most brutal environments and devastating ESD attacks with industrial-grade shielded Ethernet cable from Ubiquiti Networks. For more details, visit www. ubnt. com/toughcable Deutsch Schutzen Sie Ihre Netzwerke vor extremen Umwelteinflussen und verheerender elektrostatischer Entladung (ESD), indem Sie abgeschirmte Ethernetkabel in Unternehmensqualitat von Ubiquiti Networks verwenden. Weitere Informationen erhalten Sie unter www. bnt. com/toughcable Espanol Le recomendamos que proteja sus redes de los entornos mas hostiles y los devastadores efectos de las descargas electrostaticas utilizando cable Ethernet blindado con calidad-industrial de Ubiquiti Networks. Para obtener mas informacion, visite www. ubnt. com/toughcable Francais Nous vous recommandons de proteger vos reseaux contre les environnements les plus brut aux et les decharges electrostatiques les plus devastatrices avec un cable Ethernet Ubiquiti Networks avec blindage renforce. Pour en savoir plus, rendez-vous sur www. ubnt. com/toughcable Italiano Si consiglia di proteggere le reti dagli ambienti e dagli attacchi ESD piu invasivi con il cavo Ethernet schermato-di tipo industriale di Ubiquiti Networks. Per ulteriori informazioni, visitare il sito Web www. ubnt. com/toughcable RR062111 Ubiquiti Networks Support Email: support@ubnt. com Phone (9 a. m. – 5 p. m. PST): 408-942-1153 Online Resources Wiki Page: www. ubnt. com/wiki Support Forum: www. ubnt. com/forum Knowledge Base: www. ubnt. com/kb Downloads: www. ubnt. com/support/downloads www. ubnt. com  © 2011 Ubiquiti Networks, Inc. All rights reserved. How to cite Nano Station M2/M5 Loco Manual, Essay examples

Buddhism And Zen Koan Essay Example For Students

Buddhism And Zen Koan Essay The Zen Koan is a written or verbal puzzle used in the teaching of Buddhism tobring the student to the level of satori or enlightenment. According to D TSuzuki in An Introduction To Zen Buddhism, the word Koan now denotes someanecdote of an ancient master, or a dialogue between master and monks, or astatement or question put forward by a teacher, all of which are used as themeans for opening ones mind to the truth of Zen.(Suzuki 102). Koans areoften in the form of statements that seem, at first, to make little or no sense. This aspect of a Koan is intended to help the student concentrate on the wordsand pull meaning from them in the same way that they must pull meaning fromthemselves in order to achieve satori. Koans sometimes seem to beconstructed of two contradicting concepts, which may be true from the standpointof the dynamics of language. This joining of two opposing concepts is meant toshow the student that all concepts are actually a part of one another since theyexist in the same world. Koans are intended to join the opposing concepts withinthe student, which is the oneness of Zen Buddhism. Zen masters, by thismeans, would force the evolution of the Zen consciousness into the minds oftheir less endowed disciples.(Suzuki 102). The real self of Zen lies inthe harmony of opposites. To those who pay more attention to the actual writtenwords of the Koan, Koans will never make sense. Koans are deliberately meant todefy the logic that exists in the world outside the self, the world ofgovernment and so cial constructs. They are meant to help the student see theworld undistorted by these learned concepts. The language of a Koan also usessimple concepts and objects that are universal. Keeping the subject simple, thestudent does not have to worry themselves over the symbolism of the subject, butrather, what the entire composition of the Koan represents. The composition as awhole, once it is thought of in this way, should reveal something about thewholeness of the individual who has figured it out. An example of this dualityand simplicity is found in the following Koan: When your mind is not dwellingon the duality of good and evil, what is your original face before you wereborn?(Suzuki 104). The subjects of koans tend to be simple objects such astrees, animals or aspects of nature. Or simple words for concepts or emotions,such as love, hate, good and evil . This attention to simplicity helps thestudent to view the entire Koan, instead of being anchored to a complex,abstract concept. T he reasoning behind every Koan is the same, that the world isone interdependent whole and that each separate one of us is that Whole. In theabove Koan, there is simplicity in the choice of the words good and evilover any words that may represent these symbolically. In fact, the first part ofthe Koan may not even be the most important part, but only stated to make thestudent realize that they are concerned with the duality of the outside world. The conflicts of the outside world have been distracting the student fromrealizing the purity of their own face before you were born. The famousKoan that goes: What is the sound of one hand clapping? is interesting inthe sense that if one thinks of it in terms of the logic that they were taughtby the outside world, there is no such sound. Ordinarily, a sound is heardonly when two hands are clapping, and in that sense no sound can come from onehand alone. This Koan, however, is meant to strike at the root ofour everyday experience, which is constructed on so-called scientific or logicalbasis(Suzuki 105). The duality here lies in what we have been taught to belogical. The Koan threatens our knowledge of the way our world is supposed towork. The Koans, therefore, as we have seen, are generally such as to shutup all possible avenues to rationalization(Suzuki 108). The Zen Buddhist Koanis naturally irrational, and is meant to oppose the knowledge the studentpossesses on the surface, to b e exchanged for inner knowledge. This impliesthat, according to Zen, all humans have a natural core that knows allthings are one whole. The Koan helps the student to pull this information to thesurface, to live inside out. It tells the student to learn how to beundistracted by the events of the world outside the self. To live as if allevents are happening outside as well as inside and are all interrelated.

Was it Really independance Essay Example For Students

Was it Really independance Essay The American Revolution was forced upon the Americans by the crueltreatment from the British. On May 10 of 1775 the Second ContinentalCongress gathered in Philadelphia, one month after the fighting broke out. There, delegates from each of the 13 colonies would decide on independence. A Declaration of Independence was required to state why the 13 colonieswere separating from the British Empire. With this, POWs could demand tobe treated as prisoners instead of traitors and aid coul d be sought fromBritains enemies. The Declaration of Independence consisted of thepreamble, the middle section and a section declaring independence. Themost important part, the preamble, justifies the rights of the Americancitizens. It declar es that men are created equalandare endowed bytheir Creator with certain unalienable rights; that among these are life,liberty, and the pursuit of happiness. That sentence still remains atruth with the Americans today. Jefferson wrote the preamble with the helpof John Locke and Rousteu. Within the preamble Jefferson writes that thepeople, to secure these rightswhenever any form of government becomesdestructiveit is the right of the people to alter or abolish it. Itgives the people of America the freedom to impeach untrustworthy rulers anddictators i f they wish to. The freedom that Thomas Jefferson gave us isstill in practice today. The middle section justified why the colonistswere revolting against the Britis h Empire. Here Jefferson writes that theKing of Great Britain is a history of repeated injuries and usurpations.He reminds the reader that the King has refused to allow the Governors topass important laws necessary for the public good, obstru cted theadministration and that the king is sending over large armies to completethe works of death. The third section officially declares independence inwriting. The entire effort to complete the Declaration of Independence wasdone by Thomas Jefferso n, John Adams, Ben Franklin, Roger Sherman andRobert Livingston. In order to pass the declaration all of therepresentatives had to vote yes for independence. In one of the earlierdrafts a statement roughly 175 words gave black slaves independence . Thesouth however did not agree and threatened not to pass the declaration. We will write a custom essay on Was it Really independance specifically for you for only $16.38 $13.9/page Order now Knowing that nothing would get done if it was not passed, John Adams gaveup the war to allow for that to clause remain in the declaration. Thedeclaration was officiall in effect on July 4, 1776. Bibliography:

A Fight for Racial and Gender Equality Professor Ramos Blog

A Fight for Racial and Gender Equality Emma Hurtado English 261 25 February 2019    â€Å"The Yellow Wallpaper† by Charlotte Perkins Gilman shows the harsh realities of what life was like for some women. Although women were beginning to experience some freedom, their husbands still had a say in what they did, which means they wouldn’t take into consideration what their wives wanted or needed. It is learned that the narrator is suffering from mental illness who feels that she would be better off experiencing freedom and going out to help with her illness. Unfortunately, her husband John, who also happens to be her doctor, feels that it is best to isolate her in her room with very little outside contact. Although she tries to voice her feelings and opinions, she is quickly shut down by John. By the end of the story, the wallpaper has driven her insane, making her feel as though the wallpaper has actually trapped women which symbolizes how she feels about her marriage. Society has come a long way since this story was written, but the conflict presented in â€Å"The Yellow Wallpaper† is still one that is relevant today. Society has managed to find a way to continue oppressing women in a way that is detrimental to women’s health and their children. The difference between both conflicts presented is the difference in social class and racial group. Charlotte Perkins Gilman writes from the perspective of a white woman who belongs a rich, upper middle class. Gilman’s purpose for writing this story was to share her experiences in hopes of changing the future for all women. This goal of hers was accomplished, but to a certain extent. Although society has progressed a lot since the late 1890’s, we can still see this conflict today in lower-income families and communities. There are groups of women who are still struggling with their mental and physical health due to not being listened to by their health care professionals. Great strides have been made in the last hundred years, but there are still various consequences that have resulted from the original conflict presented in â€Å"The Yellow Wallpaper†. The lives of women of color are still at risk today, regardless of their economic status. The connection between both conflicts is the internalized racism and misogyny that is still alive and present in society today. Some of the ways in which Gilman’s story is interesting is because of the way the narrator does not have a name and also because it only focuses on what life was like for women who belonged to an upper class. The narrator having no name really stands out and it seems that Gilman chose to do this to represent the rest of women in society at the time, not just one specific group of women. The narrator doesn’t want to acclimate to a life where she won’t get the help she needs or won’t be able to engage in the activities she enjoys doing. She notices how the women in her life are unlike her, in which they are willing to do whatever their husbands and society tell them to. She is cautious around Jennie, her sister-in-law, because she believes Jennie â€Å"thinks it is the writing† that made the narrator sick (Gilman 423). The narrator had to hide who she was and what she did because she feared that her own family would send her away to Weir Mitchell to receive a different kind of treatment. This conflict is not unusual today and still exists for women of color and lower income families. Although today the situation is different, society has managed to find a way to continue to oppress women in certain communities. One consequence of this is that â€Å"African American women are three to four times more likely to die from childbirth than non-Hispanic white women, and socioeconomic status, education, and other factors do not protect against this disparity† (Novoa and Taylor). There are several different factors that come into play, but one of the main ones is mental health. â€Å"Maternal mental health issues among African American women are largely underreported† (Novoa and Taylor). For a number of different reasons, most women aren’t able to ask for help just like the narrator in Gilman’s story and the results have shown that it has taken a toll on these women and their families. In â€Å"The Yellow Wallpaper†, the narrator conceals her pain and suffering because of the way society views women as being incapable of expressing their needs. At the beginning of the story, the narrator reveals how â€Å"John laughs at me, of course, but one expects that in marriage† which shows the way in which this kind of toxic behavior is normalized (Gilman 419). Because of these expectations, it shows why she would avoid bringing up anything regarding her mental health. At one point in the story when discussing the narrator’s recovery, she tries to divert the subject to talk about her mental health but as soon as she began, she stopped short, for he sat up straight and looked at me with such a stern, reproachful look that I could not say another word† (Gilman 425). This kind of conflict can still be seen today in a hospital where some women continue to receive horrible care. In both of these situations, the husband and doctors would be expected to do everything in their power to help these women, but unfortunately it does not work out too well for either group. A recent incident from 2016 shows how an African-American woman Simone Landrum experienced a difficult pregnancy but â€Å"she recalls, her doctor told her to lie down - and calm down† making her feel as if â€Å"he threw me away† (Villarosa). Unfortunately, a few days after being sent home, she was back in the hospital with the exact same pain but this time it resulted in her losing the child and the nurses mentioned that she was sick and â€Å"very lucky to be alive† (Villarosa). Both the narrator and Landrum were trying to receive the help they needed from the doctors but instead they were ignored which resulted in the narrator going insane and Landrum losing her baby. Gilman was criticizing the way men would belittle not just women’s health, but also any other small detail about their lives. Women weren’t regarded as equals because men were always the ones who held power in society. Much has changed as shown in current events, but not enough are focusing on all women and the different struggles they experience. One of the struggles that is common now are black women during their pregnancies. The conflict in the story was originally targeted towards all women but now it is much more common in lower social and economic classes and colored women. According to collected data, Kacey Eichelberger states that â€Å"black women face across their reproductive lives and conclude that these outcomes are not only statistically significant, but morally significant and fundamentally unjust† (Eichelberger 1771). These women experience twice as many risks than a white or Hispanic woman would. There are several factors as to why these risks are occurring much more often for black women, such as little access to healthcare. It seems that Gilman would have wanted to achieve gender equity with her story, but it is also important to prioritize racial equity in a situation like this. With the ending of the story and how the narrator ended up going insane, Gilman was trying to show the harm that would occur when medical professionals refuse to acknowledge women and their cries for help and why it is important to care for mothers and pregnant women. She knew she had the responsibility to do what’s right and express how unjust society was back then. Despite having to suffer through her mental illness, Gilman never gave up on trying to make a change whether it was for just one woman or all of them. Although we have come a long way from where we once were, we still have a long way to go before we can say that all women are regarded equally.    Eichelberger, Kacey Y., et al. â€Å"Black Lives Matter: Claiming a Space for Evidence- Based Outrage in Obstetrics and Gynecology.† American Journal Of Public Health, vol. 106, no. 10, Oct. 2016, pp. 1771–1772. EBSCOhost, Novoa, Cristina, and Jamila Taylor. â€Å"Exploring African Americans High Maternal and Infant Death Rates.† Center for American Progress Gilman, Charlotte. â€Å"The Yellow Wallpaper.† Literature: The Human Experience. Edited by Richard Abcarian, Marvin Klotz, Samuel Cohen, Bedford/St. Martin’s, 2000 pp. 419-431. Tunà §alp, Ãâ€"zge, et al. â€Å"Listening to Women’s Voices: The Quality of Care of Women Experiencing Severe Maternal Morbidity, in Accra, Ghana.† PLoS ONE, vol. 7, no. 8, Aug. 2012, pp. 1–8. EBSCOhost, doi:10.1371/journal.pone.0044536.

Online Customer Engagement Essay Example | Topics and Well Written Essays - 1000 words

Online Customer Engagement - Essay Example This can also be referred to the social phenomenon facilitated by the extensive implementation of the internet in the late 1990s and captivating off by means of the procedural improvements in link speed (broadband) in the decade that trailed. Online Customer commitment is qualitatively dissimilar commencing the engagement of consumers' offline. This particular project will be of help as it will allow the organizations to counter react to the elementary changes in the clients' behaviors that the internet has brought forth. It will also avail the solution to the high level of the incompetence of the custom break off and replicate, broadcast model of promoting (George 1990, pg20). With this report, it will also provide the readers with the knowledge about the consumers' behaviors so as to enable them to know how to deal with their clients in order to be able to provide them with the appropriate products and services that they do need. From the other researchers, it has been proven that, the relationship of an organization with their clients during marketing affects their way of behavior. This can also be said that, customer engagement is directly proportional to the customer behaviors as well as the relationship marketing. This is so because, with consumer engagement, it commits the clients and thus able to evaluate their behaviors. 2.0 RESEARCH QUESTIONS For this project to be termed to be successful, it has to fulfil some of the requirements. Thus it will be required to answer some questions such as; 1. What are some of the consumer behaviour that is related to the online consumer engagement 2. How do the online consumer engagement relate to the marketing strategy used by an organisation 3. Why do the managers of the organisations have a preference on the online consumer engagement as compared to the offline one 4. Which relationship does consumer behaviour have with the marketing strategy of the organisation 5. What are the significance of the consumer engagement 3.0 OBJECTIVES: The project will be focused on some of the aspects so as to be able to attain its objectives. These objectives will be attained through the questions that have to be answered at the end of the project. These will include: 1. To know some of the consumer behaviours that are related to the online consumer engagement 2. To institute the association connecting the marketing strategies and the online consumer engagement. 3. To establish the advantages of the online consumer engagement compared to the offline consumer engagement. 4. To establish the relationship between consumer behaviour and marketing strategy in any given organisation. 5. The importance of the consumer engagement. 4.0 METHOD: This will entail the way and the techniques that will be used in the research and the way in which the data will be collected so as to get the accurate report for the research project. This will comprise of 4.1 RESEARCH DESIGN This is a qualitative research. This is because it entails the use of the purposive selection of the sample size and it is also based on the targeted population in the community which will comprise of the digital marketing community. To be able to get the information from the organisation, they will have to answer a number of questionnaires. The questionnaire will be as follows; Questionnaire Instruction To be filled

Global warming Research Paper Example | Topics and Well Written Essays - 3250 words

Global warming - Research Paper Example Plants captured atmospheric carbon and converted it into sometime useful for the plant and life. These processes continued for thousands of centuries and the atmosphere became pleasant. However, due to the impact of the natural disasters like earth quakes, floods, etc, the plants, tress and organisms died on a massive scale and buried under the layers of sand. The immense pressure and temperature under the layer of sedimentation converted the organisms back to the carbon compounds. There organic compounds with greater ratio of carbon is present under the crust in the form of coal, oil and natural gas. These organic compounds are often referred as fossil fuel resources. When human race discovered that there is an immense amount of energy trapped in the coal, oil and natural gas, they tried to extract the energy out without acknowledging what will be byproduct of the reaction and how byproduct will affect the earth’s atmosphere and human life. The use of fossil fuel resources increased as the hunger for energy increased. No one has the idea hat the burning process is doing to the environment. In the 19th century, the demand for energy increased significantly due to the massive industrialization. Industrial goods were considered more reliable. Trains as the medium of transportation were introduced. Trains reduced the time period of the journeys. Steam trains utilized massive amount of coal to generate mechanical power fro the train. The use of coal in various other sectors also increased. Some people argued that coal energy is not good to the health but coal was the prior source of energy and no one argued to restrict the use of technology no matter what are the side effects of the energy. With the invention of internal combustion engines, fossil fuel based oil resources were used to power the internal combustion engines. Cars, motorcycles, trucks, busses, etc are fitted with internal combustion engines. Many industrialists came up with newer vehicle designs

The Berlin Conference of 1884 and Africa Research Paper

The Berlin Conference of 1884 and Africa - Research Paper Example The continent was relatively isolated from the rest of the world especially the western countries but historians have recorded early trade in Africa. Trans-Saharan trade is one of the earliest recorded commerce, carried out in Africa between eighth and 16th century (Wright, 2007). According to Wright (2007), Trans -Saharan trade was concentrated in the northern Africa and it involved countries around the Mediterranean Sea and West Africa. The trade route crossed the Saharan desert and the caravans travelled for long distances to obtain goods in various regions covered in the larger frontier. The Arabs dominated the trade and it mainly involved precious metals such as gold that was mined in West African region, ivory, salt and agricultural products. In addition, slave trade was an important component of Trans- Saharan trade, and African servants were transported to the north to work as soldiers and domestic workers (Wright, 2007 pp76-81). Conditions Leading to the Berlin Conference Th e rich gold deposits and success of the Trans-Saharan trade attracted the attention of Europeans and in the 15th century, Portuguese traders opened new trade routes along the West African coast that had rich gold deposits (Wright, 2007 p 137). ... In the mid 1870, Henry Morton successfully completed the Congo River basin expedition that had remained the last unchartered frontier in Africa (Emerson, 1979). Henry Morton was later appointed by King Leopold II of Belgium as an envoy to Congo that eventually became Congo Free State, a Belgian colony (Emerson, 1979 p69). In central Africa, France moved to the western part of the Congo basin and established Brazzaville in 1881. Great Britain conquered and occupied the Ottoman Empire in Egypt that ruled Sudan and the Somaliland. Germany declared territorial ownership of Namibia, Cameroon, and Togo while Italy claimed Eritrea in the horn of Africa in 1882 (Koponen, 1993 p124). The scramble for more African colonies generated intense competition among the European powers leading to violent conflicts and the need to have a more organized criterion for partitioning Africa became apparent. Germany had become an influential European power and other countries, including France and Britain we re aggressively seeking new colonies to assert their power in Europe. In view of the emerging power changes in Europe, Germany was determined to maintain its leading influence in Europe. Therefore, it was important to formulate a reasonable formula of partitioning African continent among the competing European powers to avoid the risk of conflict that would threaten Germany influence in Europe and the globe (Koponen, 1993, pp 129-133). The Berlin Conference At the request of Portugal, the German chancellor Otto von Bismarck invited leaders of fourteen European countries with territorial interests in Africa, and the United States for a conference in Berlin in 1884 (Collins,

The Types And Techniques Of Steganography Computer Science Essay

The Types And Techniques Of Steganography Computer Science Essay This document focus on an unfamiliar field of study in IT sector i.e. Steganography. This document covers various concepts in Steganography, A brief history of Steganography and introducing few types of techniques available today in Steganography. It also covers other topics like security in Steganography, mobile messaging, MMS Steganography related information. This document closes with a summery and proper solution . The initial footages of Steganography were by the Greek historian Herodotus in hischronicles known as Histories and date back to around 440 BC. Herodotus recorded two stories of Steganographic techniques during this time in Greece. The first stated that King Darius of Susa shaved the head of one of his prisoners and wrote a secret message on his scalp. When the prisoners hair grew back, he was sent to the Kings son in law Aristogoras in Miletus undetected. The second story also came from Herodotus, which claims that a soldier named Demeratus needed to send a message to Sparta that Xerxes intended to invade Greece. Back then, the writing medium was text written on wax-covered tablets. Demeratus removed the wax from the tablet, wrote the secret message on the underlying wood, recovered the tablet with wax to make it appear as a blank tablet and finally sent the document without being detected. Romans used invisible inks, which were based on natural substances such as fruit juices and m ilk. This was accomplished by heating the hidden text, thus revealing its contents. Invisible inks have become much more advanced and are still in limited use today. During the 15th and 16th centuries, many writers including Johannes Trithemius (author of Steganographia) and Gaspari Schotti (author or Steganographica) wrote on Steganagraphic techniques such as coding techniques for text, invisible inks, and incorporating hidden messages in music. Between 1883 and 1907, further development can be attributed to the publications of Auguste Kerckhoff (author of Cryptographic Militaire) and Charles Briquet (author of Les Filigranes). These books were mostly about Cryptography, but both can be attributed to the foundation of some Steganographic systems and more significantly to watermarking techniques. During the times of WWI (World War 1) and WWII (World War 11), significant advances in Steganography took place. Concepts such as null ciphers (taking the 3rd letter from each word in a harmless message to create a hidden message, etc), image substitution and microdot (taking data such as pictures and reducing it to the size of a large period on a piece of paper) were introduced and embraced as great steganographic techniques. In the recent digital world of today, namely 1992 to present, Steganography is being used all over the world on computer systems. Many tools and technologies have been created that take advantage of old steganographic techniques such as null ciphers, coding in images, audio, video and microdot. With the research this topic is now getting a lot of great applications for Steganography in the near future. HOW STEGANOGRAPHY WORKS Steganography replaces unneeded or unused bits in regular computer files (Graphics, sound, text) with bits of different and invisible information. Hidden information can be any other regular computer file or encrypted data. Steganography differs from cryptography in a way that it masks the existence of the message where cryptography works to mask the content of the message. Steganography sometimes used in conjunction with encryption. An encrypted file may still hide information using steganography, so even if the encrypted file is deciphered,the hidden information is not seen. . TYPES OF STEGANOGRAPHY There are different ways to hide the message in another, well known are Least Significant bytes and Injection. When a file or an image is created there are few bytes in the file or image which are not necessary or least important. These type of bytes can be replaced with a message without damaging or replacing the original message, by which the secrete message is hidden in the file or image. Another way is a message can be directly injected into a file or image. But in this way the size of the file would be increasing accordingly depending on the secrete message STEGANOGRAPHY IN IMAGE Digital images are the most widely used cover objects for steganography. Due to the availability of various file formats for various applications the algorithm used for these formats differs accordingly. An image is collection of bytes (know as pixels for images) containing different light intensities in different areas of the image. When dealing with digital images for use with Steganography, 8-bit and 24-bit per pixel image files are typical. Both have advantages and disadvantages 8-bit images are a great format to use because of their relatively small size. The drawback is that only 256 possible colors can be used which can be a potential problem during encoding. Usually a gray scale color palette is used when dealing with 8-bit images such as (.GIF) because its gradual change in color would be harder to detect after the image has been encoded with the secret message. 24-bit images offer much more flexibility when used for Steganography. The large numbers of colors (over 16 million) that can be used go well beyond the human visual system (HVS), which makes it very hard to detect once a secret message, has been encoded. Large amount of data can be encoded in to 24-bit images as it is compared to 8-bit images. The drawback of 24-bit digital images is their size which is very high and this makes them suspicious our internet due to their heavy size when compared to 8-bit images. Depending on the type of message and type of the image different algorithms are used. Few types in Steganography in Images: Least significant bit insertion Masking and filtering Redundant Pattern Encoding Encrypt and Scatter Algorithms and transformations Least significant bit insertion Least Significant Bit (LSB) insertion is most widely known algorithm for image steganography ,it involves the modification of LSB layer of image. In this technique,the message is stored in the LSB of the pixels which could be considered as random noise.Thus, altering them does not have any obvious effect to the image. Masking and filtering Masking and filtering techniques work better with 24 bit and grey scale images. They hide info in a way similar to watermarks on actual paper and are sometimes used as digital watermarks. Masking the images changes the images. To ensure that changes cannot be detected make the changes in multiple small proportions. Compared to LSB masking is more robust and masked images passes cropping, compression and some image processing. Masking techniques embed information in significant areas so that the hidden message is more integral to the cover image than just hiding it in the noise level. This makes it more suitable than LSB with, for instance, lossy JPEG images. Redundant Pattern Encoding Redundant pattern encoding is to some extent similar to spread spectrum technique. In this technique, the message is scattered through out the image based on algorithm. This technique makes the image ineffective for cropping and rotation. Multiple smaller images with redundancy increase the chance of recovering even when the stegano-image is manipulated. Encrypt and Scatter Encrypt and Scatter techniques hides the message as white noise and White Noise Storm is an example which uses employs spread spectrum and frequency hopping. Previous window size and data channel are used to generate a random number.And with in this random number ,on all the eight channels message is scattered through out the message.Each channel rotates,swaps and interlaces with every other channel. Single channel represents one bit and as a result there are many unaffected bits in each channel. In this technique it is very complex to draw out the actual message from stegano-image. This technique is more secure compared to LSB as it needs both algorithm and key to decode the bit message from stegano-image. Some users prefer this methos for its security as it needs both algorithm and key despite the stegano image. This method like LSB lets image degradation in terms of image processing, and compression. Algorithms and transformations LSB modification technique for images does hold good if any kind of compression is done on the resultant stego-image e.g. JPEG, GIF. JPEG images use the discrete cosine transform to achieve compression. DCT is a lossy compression transform because the cosine values cannot be calculated exactly, and repeated calculations using limited precision numbers introduce rounding errors into the final result. Variances between original data values and restored data values depend on the method used to calculate DCT STEGANOGRAPHY IN AUDIO Implanting secrete message into an audio is the most challenging technique in Steganography. This is because the human auditory system (HAS) has such a vibrant range that it can listen over. To put this in perspective, the (HAS) recognize over a range of power greater than one million to one and a range of frequencies greater than one thousand to one making it extremely hard to add or remove data from the original data structure. The only weakness in the (HAS) comes at trying to differentiate sounds (loud sounds drown out quiet sounds) and this is what must be exploited to encode secret messages in audio without being detected. Below are the lists of methods which are commonly used for audio Steganography. LSB coding Parity coding Phase coding Spread spectrum Echo hiding LSB coding Using the least-significant bit is possible for audio, as modifications usually would not create recognizable changes to the sounds. Another method takes advantage of human limitations. It is possible to encode messages using frequencies that are indistinct to the human ear. Using frequencies above 20.000Hz, messages can be hidden inside sound files and can not be detected by human checks. Parity coding Instead of breaking a signal down into individual samples, the parity coding method breaks a signal down into separate regions of samples and encodes each bit from the secret message in a sample regions parity bit. If the parity bit of a selected region does not match the secret bit to be encoded, the process flips the LSB of one of the samples in the region. Thus, the sender has more of a choice in encoding the secret bit, and the signal can be changed in a more unobtrusive fashion. Phase coding Phase coding attends to the disadvantages of the noise inducing methods of audio Steganography. Phase coding uses the fact that the phase components of sound are not as audible to the human ear as noise is. Rather than introducing perturbations, this technique encodes the message bits as phase shifts in the phase spectrum of a digital signal, attaining an indistinct encoding in terms of signal-to-perceived noise ratio. Spread spectrum In the context of audio Steganography, the basic spread spectrum (SS) method attempts to spread secret information across the audio signals frequency spectrum as much as possible. This is comparable to a system using an implementation of the LSB coding that randomly spreads the message bits over the entire audio file. However, unlike LSB coding, the SS method spreads the secret message over the sound files frequency spectrum, using a code that is independent of the actual signal. As a result, the final signal occupies a bandwidth in excess of what is actually required for broadcast. Echo hiding In echo hiding, information is implanted in a sound file by introducing an echo into the separate signal. Like the spread spectrum method, it too provides advantages in that it allows for a high data transmission rate and provides superior strength when compared to the noise inducing methods. If only one echo was produced from the original signal, only one bit of information could be encoded. Therefore, the original signal is broken down into blocks before the encoding process begins. Once the encoding process is completed, the blocks are concatenated back together to create the final signal. STEGANOGRAPHY IN VIDEO In video steganography, a video file would be embedded with supplementary data to hide secret messages. In the process, an intermediate signal which is a function of hidden message data and data of content signal would be generated. Content data (video file) is then combined with this intermediate signal to result encoding. The supplementary data can include copy control data which can be brains by consumer electronic device and used to disable copying. The intermediate signal may also contain a pseudo arbitrary key data so as to hide encoding and decode needs corresponding key to extract hidden information from encoded content. In some implementations regulation data is embedded in the content signal with auxiliary data. This regulation data consists of known properties enabling its identification in the embedded content signal. This encoding is robust against scaling, resampling and other forms of content degradation, so that the supplementary data can be detected from the content which might have been degraded. There are different approaches for video steganography apart from the above mentioned. Most widely known are listed and discussed below. Least Significant Bit Insertion This is the most simple and popular approach for all types of steganography. In this method the digital video file is considered as separate frames and changes the displayed image of each video frame. LSB of 1 byte in the image is used to store the secret information. Effecting changes are too small to be recognized by human eye. This method enhances the capacity of the hidden message but compromises the security requirements such as data integrity. Real time video steganography This kind of steganography involves hiding information on the output image on the device. This method considers each frame shown at any moment irrespective of whether it is image; text .The image is then divided into blocks. If pixel colors of the blocks are similar then changes color characteristics of number of these pixels to some extent. By labeling each frame with a sequence number it would even be easy to identify missing parts of information. To extract the information, the displayed image should be recorded first and relevant program is used then. STEGANOGRAPHY IN DOCUMENT Steganography in documents just focuses on altering some of its characteristics. They can either be characteristics of text or even text formatting. Below are few ways listed and discussed to implement the same. Since everyone can read, encoding text in neutral sentences is doubtfully effective. But taking the first letter of each word of the previous sentence, one can see that it is possible and not very difficult. Hiding information in plain text can be done in many different ways. One way is by simple adding white space and tabs to the ends of the lines of the document .The last technique was successfully used in practice and even after a text has been printed and copied on paper for ten times, the secret message could still be retrieved. Another possible way of storing a secret inside a text is using a publicly available cover source, a book or a newspaper, and using a code which consists for example of a combination of a page number, a line number and a character number. This way, no information stored inside the cover source leads to the hidden message. Discovering it depends exclusively on gaining knowledge of the secret key. Setting background color and font color is one of the mainly used staganographic approach. This method is focused for Microsoft word documents. Choose predefined colors and set font and background colors of invisible characters such as space, tab or the carriage return characters. R,G,B values are 8 bits means we have allowed range of 0 to 255.Most of the viewers would not feel interested about color values of these invisible characters hence 3 bytes of information is easily hidden in each occurrence of space,tab or carriage return.This approach needs no extra information to hide required bits. SECURITY IN STEGANOGRAPHY PURE KEY STEGANOGRAPHY Pure Steganography is a Steganography system that doesnt require prior exchange of some secret information before sending message; therefore, no information is required to start the communication process: the security of the system thus depends entirely on its secrecy .The pure Steganography can be defined as the quadruple (C, M, D, and E) where: C: the set of possible covers. M: the set of secret massage with |C| à ¢Ã¢â‚¬ °Ã‚ ¥ |M|. E: CÃÆ'-Mà ¢Ã¢â‚¬  Ã¢â‚¬â„¢C the embedding function. D: Cà ¢Ã¢â‚¬  Ã¢â‚¬â„¢M of the extraction function with the property that D (E(c,m))=m for all m à Ã¢â‚¬Å¾ M and c à Ã¢â‚¬Å¾ C. Cover (C) Message (M) Embedding (E) Extracting (D) Strgo-Object Message(M) In most applications, pure Steganography is preferred, since no stego-key must be shared between the communication partners, although a pure Steganography protocols dont provide any security if an attacker knows the embedding method PRIVATE KEY STEGANOGRAPHY A Private Key Steganography system is similar to a symmetric cipher, where the sender chooses a cover and embeds the secret message into the cover using a secret key. If the Private Key used in the embedding process is known to the receiver, he can reverse the process and extract the secret message. Anyone who doesnt know the Private Key should not be able to obtain evidence of the encoded information. The Private Key Steganography can be defined as the quintuple (C, M, K, DK, and EK) where: C: the set of possible covers. M: the set of secret message. K: the set of secret keys. Ek: CÃÆ'-MÃÆ'-Kà ¢Ã¢â‚¬  Ã¢â‚¬â„¢C With the property that DK (EK(c,m,k),k)=m for all m à Ã¢â‚¬Å¾ M, c à Ã¢â‚¬Å¾ C and k à Ã¢â‚¬Å¾ K KEY KEY Strgo-Object Cover (C) Embedding (E) Message (M) Extracting (D) Message (M) PUBLIC KEY STEGANOGRAPHY Public key Steganography does not depend on the swapping of a private key. It necessitates two keys, one of them private (secret) and the other public: the public key is stored in a public database, whereas the public key is used in the embedding process. The Private Key is used to reconstruct the secret message One way to build a public key Steganography system is to use a public key crypto system. The sender and the receiver can exchange public keys of some public key cryptography algorithm before imprisonment. Public key Steganography utilizes the fact that the decoding function in a Steganography system can be applied to any cover, whether or not it already contains a secret message. The public key Steganography relies on the fact that encrypted information is random enough to hide in plain sight. The sender encrypts the information with the receivers public key to obtain a random-looking massage and embeds it in a channel known to the receiver, thereby replacing some of the natu ral arbitrariness with which every communication process is accompanied. Assume that both the cryptographic algorithms and the embedding functions are publicly known. The receiver who cannot decide a priori if secret information is transmitted in a specific cover suspect the arrival of message and simply try to extract and decrypt it using his private key. If the cover actually contained information, the decryption information is the senders message OTHER TYPES MOBILE MESSAGING STEGANOGRAPHY Mobile Messaging Service enables mobile users to send and receive messages containing image, audio and video. These messages are exchanged ultimately through a component known as Mobile Switching Center. MMS messages have several benefits like communicating even when the server is busy, exchanging messages while making calls, sending offline messages. They also provide services like eCommerce. As there is possibility of disclosure of confidential and personal information between various systems, information security has got immense importance. MMS Steganography provides confidentiality and integrity with subtle unremovability.Users can profit from concealed channels in order to send and receive hidden messages and keys. Multimedia objects may contain hidden information embedded to them using steganography techniques. The steganography technique used must satisfy following: Reliability of secreted information after it has been embedded inside the content should be correct. Content object should remain intact or almost unchanged to the human eyes. There can be mainly two types of steganography techniques possible for MMS objects. Fragile steganography comprises of implanting information into a file which is destroyed if the file is modified. Video Technique: Works over video files. Combinations of sound and image techniques are used to implement this as whole. The scope of adding lots of data is much greater. Sound Technique: Works over audio files like Mp3 files. Encode data as binary to sound like noise and can be identified by receiver with correct key. Data being added is in narrow bandwidth compared to the medium. Robust techniques aim to embed information into a file which cannot easily be destroyed. Image Hiding: Works over images. Lease Significant Bit Least significant bits of each pixel in one image are used to hide the most significant bits of another. Simple and easy way of information hiding. Direct Cosine Transform Transformed DCT coefficients would be altered. Image would be made robust by scattering the hiding information evenly. Wavelet Transform Dividing whole image into small wavelets and then hide the information. Coefficients of wavelets are altered with tolerable noise. Text Technique: Works over documents.Just by changing some of the characteristics of the content information can be embedded. Alterations would not be visible to user. As MMS Steganography becomes more widely used now there must be a clear definition of robustness. This definition helps to prevent detection and removal of embedded data. Below are the few properties a good technique should hold: Quality of media should not perceptibly degrade after embedding secret data. Secret data should be imperceptible with out secret knowledge, typically the key. If several data are there, they should not hamper with each other. Secret data should survive which dont degrade the perceived quality of work. MMS STEGANOGRAPHY RELATED WORK As MMS carries multi formatted data such as Text, Audio, Video and images, it has got more chances of sending secret messages and can implement various methodologies in order to keep the message safe and secret. Currently this study is all about Text and Video based Steganography. An MMS capable mobile with inbuilt cameras and customized applications has high importance in terms of steganography creation and extraction Capacity Efficiency Processing time Resource time consumption Advantage Text technique Less More Less Less Easy and simple to implement Video technique More More More More Holds lot of information compared to text technique Table -1- comparison between Text and Video steganography Techniques PROPER SOLUTION MMS Messages can hold any of video, audio, image and text encapsulated with in Synchronized Multimedia Integration Language (SMIL) . The recommended steganography deals with three major parts of MMS which can provide us with maximum capacity possible and not compromising main aim which is total security. The most important issues in steganography are secrecy, payload, robustness and speed. Below steps describes proposed steganography working model: First part of the process hides stegno key in SMIL using white space algorithm. Then Least Significant Bit algorithm is used to hide the secret message in video. Rest of the information would be hidden inside text of the MMS using abbreviation algorithm. Ratio of information hiding in video part to text part is 6:1 hence I bit stored in text corresponds to 6 bits stored in 3gp video. High security can be granted with reasonable processing speed and without affecting the performance of mobile. 2.10 CHAPTER SUMMERY This document is all about available Steganography techniques and methodologies. It has listed down the various methodologies and their uses. Along with these, it has also included about the MMS Steganography importance and ways to do that.

The Beef with TV Essay -- essays research papers

Television: Our Nations Drug of Choice   Ã‚  Ã‚  Ã‚  Ã‚  Television is our era’s escape from what we now consider a chaotic struggle of life. I think we as a people feel life can be solved in an hour long Monday night special and that exact attitude is our society’s problem today. Frankly we are a group of cowards who do not take the bull by the horns; rather we retreat to routine episode line up that we can supposedly relate to. Ladies and gentlemen we need to break free like Plato’s slave in the myth of the cave, by realizing that life is not â€Å"Ragged, loose and something hard to cope with† (Dove) but rather a beautiful journey far off into the beyond.   Ã‚  Ã‚  Ã‚  Ã‚  Ã¢â‚¬Å"Over ninety-eight percent of homes in America have television, while only ninety percent have telephones. Most often the programs the viewer receives are quite harmful to them physically, mentally, developmentally, and even financially.†(Paul) The theory that ‘The Tube’ is a bad thing should be no longer be pondered, it is a very bad thing. People who sit in front of the T.V. religiously often feel that they can quit at whatever time they want to, and pick up where they left off in their daily activities. Most often, nevertheless, people grow to be very flaccid about their lives; the individual sees their once everyday behavior less attractive and more complex. The scariest part of this bad habit we as a nation develop from watching television is its uncanny resemblance to heroine u...

Technology Is Killing Creativity

Technology is not killing creativity. If it was, then Les Paul’s invention of the electric guitar, Bob Moog’s invention of the synthesizer, Kusek et al. ’s invention of MIDI, Pro Tools’ inventor as well as every effects pedal or electronic music enhancing piece of gear would have to be part of this destructive force. Thoughts like this are fun to debate but totally unproductive. The real issue to be discussed for which a solution must be found is how can those who produce great music be found, heard above all the clutter and find an audience large enough to sustain a career financially. How music will be discovered in the future will determine whether next generation major artists will ever be developed again or whether the fragmentation of the music space only allows for creation of a large middle class of artists struggling to survive. Today’s battle for discovery of great music is no different than it was over the past 60 years for innovative genres like Rock and Roll, R&B and Hip Hop. The innovator’s dilemma applied to those artists and entrepreneurs fomenting these musical revolutions. It all comes down to how the tools available at the time, both music and business, were employed by the innovators to create a force great enough to break through the same type of early technology adoption problems we have today. The world was much simpler in those days and today those trying to break through are faced with a much more challenging and complicated set of circumstances BUT the exact same problem. From the 50’s through the 80’s, the record business could develop great artists out of the trunks of their cars. One driven and focused person could make it all happen. Channels of distribution were easily controlled by those who knew how to utilize them. The press, radio and TV allowed massive marketing and promotion machines to be built that could break an artist over night. In the early days there was no one way to get it done. It took 25 years for a successful cookie cutter business model to be developed but there were always interlopers that could come in at any time and change the game. Unfortunately, the world in which great music must be found and nurtured is so fragmented and overwhelming to almost everyone that’s in it. We haven’t figured it out yet. One thing is very clear to me: moving forward no band or artist will be able to do it alone. Collaboration, better teamwork, and a better meld of technology with creativity, marketing and promotion are essential if success is to be found in the future. Outside the box thinking, new tools need to be tested for success and the new music business needs to evolve a system that makes the fragmentation more manageable and controllable to easier focus our attention on the great music that is really out there and the artists who play it.

Malcom X Essay

Malcom X was a man who held many strong beliefs and posed numerous persuasive arguments. Many of these arguments are presented by Malcom X in his autobiography. The told events of his life provide the evidence for the arguments he makes. One of his contentions is that women are inferior to men. Malcom’s perception of women and his basis for this argument develop through out his life. His experiences with women provide efficient evidence for the argument he makes, but there are some counter-examples which contradict his argument. Malcom grew up watching his father beat his mother. As a young boy he lived in a society where women were considered less significant than men. When Malcom moved to Boston, he gained knowledge about women by the examples of his friends who used women as status symbols. His experiences with his own status symbol, Sophia, further lead him to believe that women were inferior to men. These conditions shaped Malcom’s views on women. It was through Malcom’s experiences with his family, his friends in Boston, and the women he knew that lead him to believe women were â€Å"nothing but another commodity (155).† Malcom did have models of proud and self-reliant women through out his life. However, these women did not seem to affect his overall opinion. Malcom’s father was often physically abusive to his mother. Malcom was subjected to witnessing his father’s actions. Malcom observes that a possible reason for his father’s violent outbursts was the fact that his mother â€Å"had a pretty good education (6).† His father would not tolerate being corrected by a woman which presented Malcom his first example of women’s inferiority to men. These violent outbreaks and his mother’s passive reactions taught Malcom that women could be treated in any harmful and shameful way without consequence. Moving to Boston exposed Malcom to a different culture. Boston’s urban setting clashed with the rural areas where Malcom was raised. The friends he made in Boston were hustlers who operated in a fast paced and manipulative world. They believed that being seen with a white woman was the ultimate establishment of reputation. Not only did Malcom witness the white women being used for status by his friends, he understood that â€Å"†¦those white women had no more respect for those Negroes†¦ (140).† He knew that the white women were using them for pleasure and escape from the security of their marriages. These experiences taught Malcom that women were to be regarded as nothing more than trophies. The lack of respect given to the women and the lack of which they gave provided evidence that women did not deserve to be appreciated. Malcom had his own white woman to parade around town to the clubs and bars, Sophia. Sophia succumbed to anything that Malcom demanded. She surrendered all of her money to him and would appear at his beck and call. Malcom would abuse her just â€Å"to keep her in line (156).† It became Malcom’s belief that â€Å"some women love to be exploited (156).† Malcom exploited the submissive Sophia because she allowed him to do so. Malcom was surrounded by meek and subservient women which lead him to believe women like to be treated in such a harsh manner. Malcom was acquainted with a few very highly regarded women. â€Å"The first really proud black woman† Malcom had known was his sister, Ella (39). Ella was a woman of great achievements. Malcom â€Å"had never been so impressed with anybody (39-40).† Another impressive woman who impacted Malcom’s life was the wife of his boss. She was educated and had business abilities which Malcom respected. Malcom regarded these women much differently than the others he knew like Sophia, however, his inferiority-of-women attitude was not changed by these decent women. The mistreatment and abuse of women that Malcom witnessed and acted out guided his beliefs about women and where they stood in society. Malcom’s perceptions of women and his argument about gender relations are clearly connected with his raising. His evidence of these views and arguments give good reason for him to accept them as true. His gender relations argument does not take into consideration the few, but highly upright, women that did take part in his life, though. The fact that he did experience relationships with women whom he did not consider inferior conflicts his argument.

The Columbine Massacre essays

The Columbine Massacre essays The Columbine high school massacre took place in April 20, 1999 at Columbine High School in Jefferson County near Littleton, Colorado, United States, when two teenage students, Eric Harris and Dylan Klebold, executed a planned attacked, killing 12 other students and a teacher before killing themselves (Wikipedia, 2004). It is believed to be the worst school After the shootings, the media painted a picture of the murderers as outcast "nerds" who were unpopular and teased by much of the school's population (Wikipedia, 2004). However, later reports revealed that both Harris and Klebold had both a close circle of friends and a wider informal social group. It was also revealed that anti-gay epithets were directed at them, although their actual sexual orientation was unknown; both had girlfriends at some point, though. Harris and Klebold were members of a clique called the "Trenchcoat Mafia" in which they wore heavy black trench coats. By the time of the shootings, most of the major members of the group had already either graduated or dropped out of Columbine. Since the murders, there have been a variety of theories attempting to explain why Harris and Klebold committed the crime (Cullen, 2004). A popular theory is that the boys, who were known as the "Trench Coat Mafia outcasts" took revenge against the bullies who had made school miserable for them. A second conclusion is that the massacre was inexplicable: It is impossible to understand what drove them to such horrific violence. However, recently, the FBI and its team of psychiatrists and psychologists came to an entirely different conclusion (Cullen, 2004). These experts say that they understand what motivated Harris and Klebold to execute such a crime, and their explanation is different and more troubling than the two conclusions that were previously most widely believed. Three months after the crime took place, the FBI held a meeting ...

DISCUSSION QUESTIONS Essay Example | Topics and Well Written Essays - 250 words - 2

DISCUSSION QUESTIONS - Essay Example For instance, logistics involves activities such as customer service, storage, inventory control, packaging, and recycling. Distribution, as stipulated by Kapoor and Kansal (2003) entails physical transportation of commodities from one place to another or from the producers to the consumers. Pull and push strategies are the major marketing action plans used by many organizations. Pull denotes advertising and promoting to ultimate consumers in a bid to create demand whereas push entails tantalizing by means of endorsements (Kapoor and Kansal, 2003). Both of these strategies involve public promotions as well as designing or creating new products to meet the needs of the consumer( Kapoor and Kansal, 2003). However, push marketing strategy involves promoting already available products while in pull strategy, promotions are done and consumers have to wait for the product to be produced (Kapoor and Kansal, 2003). Ashleigh, I agree with your discussion that a distribution channel is the chain that a product goes through from production to consumers. Your example of how geographical location affects distribution channels is also spot-on. I agree that if a product is being produced in Mexico, then the distributors would best be placed at the border in order to improve accessibility of the goods from the producer to the consumer. In other words, geographical location affects communication in terms of how products reach the ultimate

Strategic Management Assignment Example | Topics and Well Written Essays - 4000 words

Strategic Management - Assignment Example In this definition, the scope and direction of the strategy and the configuration of resources are within the purview of the organization. External competitive forces determine the 'environment' in which the organization works. Michael Porter (2004) describes five such forces that have an effect on the competitiveness of an organization. These five forces comprise the 'outside-in' business strategy tool as diagrammatically depicted below: 1.1. About Alitalia: Alitalia is the smallest of Europe's full service airlines (after the merger of KLM with Air France and Swissair with Lufthansa) in terms of revenues generated, flights operated and passengers flown and other financial parameters. (See Table-1 below. Table-2 provides comparative statistics for low budget airlines) Alitalia (Alitalia - Linee Aeree Italiane S.p.A) has been operating as a full service airline that flies passengers and cargo for sixty years. Alitalia is Italy's national airline with the government holding 49% equity (other shareholders including employees hold 49% and Air France holds 2%). The airline has a fleet of 177 aircraft and flies to 102 destinations in Italy, Europe, the middle and far East Asia, Africa and the Atlantic. Alitalia has modernized its fleet keeping in view the distances and load factors involved in various sectors. In fact the company boasts of operating one of the youngest and most efficient fleets in the world. During the year 2005, 24 million passengers flew Alitalia, which represented a growth rate of 7.8% year on year over 2004. In April 2004, the company acquired the bankrupt regional airline Gandalf Airlines to gain additional slots at several European airports, mainly Milan (Linate) and Paris (Charles De Gaulle). In September 2004 the company sought to lay off almost 5000 employees to avoid bankruptcy and possible liquidation. A vicious fight ensued with employees unions striking work which finally ended with government intervention and provision of a bridging loan. There was a proposal to merge the company with Air France-KLM but it petered out. During this period, to save costs, the company was, splicd into two holding companies. They are Alitalia Fly which controls Alitalia Express, Volare SpA, Volare Airlines and Air Europe. The company holds 51% equity in the new formation Alitalia Servizi which controls the following: Alitalia Airport which operates ground handling services in Rome Fiumicino, Palermo, Cagiliary and passenger handling services in Catania and Naples; Alitalia Mainatenance Systems 40% of which is owned by Lufthans

Tesco's Strategic Real Estate Management Case Study

Tesco's Strategic Real Estate Management - Case Study Example The futuristic thrust of a company can be assessed by its assets. If the company carries forward its business prospects by accumulating assets on a recurring basis, this indicates towards the fact that the company is not there for short term gains. Policies of such companies, in general, always happen to be friendly to different sets of stakeholders. Acquiring real estate is one good indication towards the strategic focus of the company. Tesco's policies have been to acquire the real estate with an eye on long term perspective. Continuously monitoring the environment and following the leaders has become key to a successful business. Continuously studying the different aspects of environment (social, political, legal, technological etc.) and taking corrective and adaptive steps accordingly helps in growing of an organisation. Tesco started computerised checkout counters as early as 1982 and this stride continued with opening of www.tesco.com and its online operations. Today it is the largest store in UK with presence in many countries around the world. This study is an effort to find out how the management at Tesco has been able to make use of its strengths and adapted to external pulls and pressure while successfully managing the resources at its command. Of all the changes in distribution during the last century, those taking place in retailing have been the most dramatic. Totally new institutions have appeared in an industry that a hundred years ago consisted mostly of small general and specialty stores. Tesco is one such store which had a humble beginning early in the 20th century and today it is one of the leading company in the retail sector. Besides acquiring prime space in the major cities in UK, in the form of its stores, company has been able to take advantage of the opportunities in the overseas market. This study is an effort to figure out how the company is able to synchronise its marketing efforts while investing in real estate as well. The Evolution of Tesco Tesco has been a leading company in the retailing business. With its presence in many parts of the world, the company has been able to take good advantage of the liberalisation policies being adopted by nations around the world. While talking about the policies adopted by the management in order to take growth oriented approach, it is worth discussing how the company was able to effectively manage its assets like the real estate. It was in the year 1919 that Jack Cohen founded Tesco, when he began to sell surplus groceries from a stall in the East End of London. His first day's profit1 was 1 and sales 4. The name comes from the initials of TE Stockwell, who was a partner in the firm of tea suppliers, and CO from Jack's surname. It was in year 1929 that Jack Cohen opens his first Tesco store in Burnt Oak, Edgware, North London. And there's no looking back since then. Tesco has a long term plan for growth, based on four key strategies2: i. Growth in the Core UK ii. Making corporate social responsibility an integral part of the business iii. To expand by growing internationally iv. To be as strong in non-food as in food v. To follow the customers into new retailing services The company has been steadily progressing with these strategies over the years and with over 2100 stores in UK and serving 12 markets 12 markets internationally, in Europe, Asia and North America. Over the years, the company has also widened its

Chemistry Extended Essay Essay Example for Free

Chemistry Extended Essay Essay To investigate the effect of 2-bromo-2-methyl propane concentration and temperature of the system on the rate of reaction of solvolysis of 2-bromo-2-methyl propane in 90% ethyl alcohol Done by: Habib Iscandar Hinn Friends Boys School June 22, 2007 To investigate the effect of 2-bromo-2-methyl propane concentration and temperature of the system on the rate of reaction of solvolysis of 2-bromo-2-methyl propane in 90% ethyl alcohol Introduction: The major product of the solvolysis of t -butyl chloride in 70 % water 30 % acetone is t-butyl alcohol, with a small amount of isobutylene being formed as a by product And this is with accordance of first order kinetic and suggests a two step mechanism in which the rate determining step consists of the ionization of t-butyl chloride, and in this mechanism a carbonium ion is formed as inter- mediate and this bonds immediately to near by nucleophile (in this case nucleophile is a neutral molecule) the initial product is t-butyl carbonium ion. Note1: if the nucleophile is neutral the product will be charged since the leaving group takes both bonding electrons away with it So chemists have proposed to general types of mechanism: 1- Nucleophilic substitution Sn1 The ionization step in a Sn1 reaction is endothermic and much slower than the exothermic neutralization of carbonium ion by a nucleophile. And so the rate determining step being the unimolecular ionization of the t-butyl chloride equation 4, and as a result, the overall rate of reaction is not affected by changes in the concentration or kinds of nucleophilic reagents present. Note2: the factor which determines the mechanisms employed is typically the nature of the substrate it self and not the particular nucleophile Note3: if the sum of the energy of the product is lower than the energy of the reactant the reaction is exothermic, and if the product have higher energy than the reactant the reaction is endothermic. 2- Elimination E1 (elimination unimolecular) And because t-butyl chloride acts as a Lewis acid (an electrophile) and combines with a nucleophile to give a substitution product, so the major product of the solvolysis of t-butyl chloride in water-acetone solvent is t-butyl alcohol. (Note4: electrophile: an electron deficient atom, ion or molecule that as affinity for an electron pair, and will bond to a base or nucleophile.) (Note5 : nucleophile: and atom, ion , or molecule that has an electron pair that may be donated in forming covalent bond to an electerophile.) Evaluating the mechanism: The only reactant that is undergoing change in the rate determining step is t-butyl chloride and so such reactions is a unimolecular and follow a first order equation (Sn1, E1). This means that the rate of the reaction varies directly with the concentration of t- butyl chloride. And since nucleophilic only participate in the fast second step, so their relative molar concentrations rather than their nucleiophilities are the primary product determining factor, and by using nucleophilic solvent like water, so its high concentration will assure that alcohols are the major product, and because water have a high dielectric constant (e=81) so water molecule tend to orient them-selves in such a way as to decrease the electrostatic forces between ions. And an important factor is the salvations which refer to water molecules ability stabilize ions by encasing them in a sheath of weakly bonded solvent molecules: 1- Anions are solvated by hydrogen bonding, 2- Cations are solvated by nucleophilic sites on water molecule (oxygen). And in this case of t-butyl carbonium ion the nucleophiles form strong covalent bond to carbon and converting the intermediate to a substitution product. The reaction mechanism is a sequential account of each transition state and intermediate in a total reaction, the over all rate of reaction is determined by the transition state of highest energy in the sequence, so the rate determining step is the rate determining step for both the Sn1 and E1 for t butyl chloride. (Note 6: the water soluble organic solvent acetone is used to keep a reasonable concentration of t-butyl chloride in solution) The balance equation for t-butyl chloride solvolysis in water-acetone solvent is: The effect of concentration on the solvolysis of t-butyl chloride in 70 %water 30 %acetone solvent. As the reaction proceeds the solution becomes increasingly acidic until all of the t -butyl chloride has reacted and all HCl that can form has formed. So we will monitor the reaction by allowing HCl formed to neutralize a predetermined amount of NaOH. An indicator dye (bromo-phenol blue) will change color when the NaOH has been neutralized, and clocking of the reaction should begin at the instant. So according to kinetic measurements: Rate of reaction = K [t butyl chloride] Where K is the specific rate constant in S -1 and [t butyl chloride] is the concentration of t-butyl chloride in M. Our kinetic measurement will depend on the determination of the amount of HCl produced by the reaction, so by monitoring the color change of the acid base indicator, we will determine the time required for 10% of t-butyl chloride to hydrolyze by having 10 % as much NaOH present as T-butyl chloride. Rate = d [Rcl] dt ; Where Rcl = -dt [Rcl] = K [Rcl] dt Rearranging, d [Rcl] = -K dt [Rcl] And integrating for t=0 to t=t will give; = Ln [Rcl] t Ln [Rcl] 0 = Kt 2.303 Log [Rcl] 0 = Kt [Rcl] t 2.303 Log [Rcl] 0 = Kt [Rcl] t Where [Rcl] 0: is the molar concentration at time t = 0 [Rcl] t: is the molar concentration at time t = t Two methods to calculate K 1- since the equation Kt = 2.303 Log [Rcl] 0 [Rcl] t Is an equation of a straight line (y=mx+b) with slope k. and intercept =0, a plot of 2.303 log [Rcl] 0 / [Rcl] t versus t should yield a straight line with slope k. 2- if the solvolysis reaction run to 10% completion Then, [Rcl] = 0.90 [Rcl] 0 Kt = 2.303 Log [Rcl] 0 = 2.303 log (1.11) 0.90 [Rcl] 0 And therefore, K = 0.104 T So by finding the value of K and compensate it in the rate of reaction equation Rate = K[Rcl] where the concentration of Rcl is known we can calculate the value of the rate of reaction and we will see its effect on the solvolysis of t butyl chloride in 70% water 30 % acetone solution. The effect of temperature on the solvolysis of t -butyl chloride in 70%water 30%acetone solvent. In nearly every instance an increase in temperature causes an increase in the rate of reaction, because the total fraction of all of the t butyl chloride 1molecules having energies equal to or greater than activation energy (Ea) Corresponds to the shaded portion of the area under the curve increases by increasing the temperature and by comparing the area for two different temperature, we see that the total fraction of t- butyl chloride molecules with sufficient kinetic energy to undergo reaction increases with increasing temperature and consequently, so does the reaction rate. Note7: changing the concentration affects the rate of reaction changing the temperature affects the rate constant as well as the rate. By finding the values of reaction rate constant K for different concentration of t-butyl chloride and different reaction temperature, we will find the effect of temperature on the solvolysis of t-butyl chloride in water acetone solvent. Quantitatively, K (s-1) is related to Ea and T by the equation K1 = Ae-Ea/RT1 1 Ea is the activation energy, in joule / mole. (Jmol-1) A is a proportionality constant, in s-1 R is the gas constant = 8.314 Jmol-1K-1 e is the base of the natural logarithms. T is temperature in Kelvin. This relation ship is known as Arrhenius equation We measure Ea by taking the natural logarithm of eq.1 Ln K = ln A Ea RT Thus, a plot of ln k versus 1/T gives a straight line whose slope is equal to -Ea/R and whose intercept with coordinate is ln A Note8: Ea is the activation energy, a constant characteristic of the reaction We can calculate the rate constant at some specific temperature if Ea and K at some other temperature are known. For any temp. T1 (known), Ea (known), K1 (known) K1 = A e -Ea/RT1 For any other T2 (known); (K2 unknown) K2 = A e -Ea/RT2 By dividing K1 over K2 K1 = A e -Ea/RT1 K2 A e -Ea/RT2 Taking natural logarithm of both sides, we get Ln K1 = Ea (1/T2 1/T1). K2 R Or in common logarithms (base 10 logarithms) gives: Log K1 = Ea (1/T2 1/T1) K2 2.303 R And by finding the value of K2 we will be able to find the rate of reaction at T2 and we will find the effect of temperature on the rate of solvolysis of t butyl chloride in 70 % water 30 % acetone solution. By finding the values of reaction rate constant K for different concentration of t-butyl chloride and different reaction temperature, we will find the effect of concentration and temperature on the solvolysis of t-butyl chloride in water acetone solvent. Procedure: Part A: the effect of concentration on the rate of solvolysis of t butyl chloride in 70%water 30%acetone solvent. a- Experimental procedure: to measure the time necessary for 10 % solvolysis of t butyl chloride (0.1 M concentration) in 70 % water 30% acetone solvent at room temperature. A, a, I:- 1- Prepare 500 ml of 0.1 M t- butyl chloride in acetone only and put it in an Erlenmeyer flask and label it #1. 2- Prepare 100 ml of 0.1 M NaOH solutions (in water) and put it in an Erlenmeyer and label it #2. 3- Using a burette take 30 ml of the solution in flask #1 and put it in another Erlenmeyer and label it #3. 4- By a graduated pipette take 3 ml of sodium hydroxide 0.1 M in an Erlenmeyer flask and label it #4. 5- Using a graduated cylinder measure 67 ml of distilled water added to an Erlenmeyer flask #4. 6- Add two drops of Bromo-phenol blue indicator to flask #4. A, a, II:- 1- Add quickly the solution in Erlenmeyer flask #4 to solution in flask #3 and start the stop watch to count for time in seconds. 2- Swirl the mixture and after one or two seconds immediately pour the combined solutions back into Erlenmeyer flask #4 to minimize the errors in the results. 3- The color of the mixed solutions is blue, so continue swirling the solution in Erlenmeyer flask #4 till the instant color of the solution start changing to yellow, then we stop the stopwatch and record the time. 4- Repeat the procedure at least three times and calculate the average. 5- Tabulate the results in record A. b- Experimental procedure: to measure the time necessary for 10 % solvolysis of t butyl chloride (0.2 M concentration) in 70 % water 30% acetone solvent at room temperature. A, b, I:- 1- Prepare 500 ml of 0.2 M t- butyl chloride in acetone only and put it in an Erlenmeyer flask and label it #1. 2- Prepare 100 ml of 0.1 M NaOH solutions (in water) and put it in an Erlenmeyer flask and label it #2. 3- Using a burette take 30 ml of the solution in Erlenmeyer flask #1 and put it in another Erlenmeyer flask and label it #3. 4- By a graduated pipette take 3 ml of sodium hydroxide 0.1 M in an Erlenmeyer flask and label it #4. 5- Using a graduated cylinder measure 67 ml of distilled water added to an Erlenmeyer flask #4. 6- Add two drops of bromo-phenol blue indicator to Erlenmeyer flask #4. A, b, II:- 1- Add quickly the solution in an Erlenmeyer flask #4 to solution in flask #3 and start the stop watch to count for time in seconds. 2- Swirl the mixture and after one or two seconds immediately pour the combined solutions back into an Erlenmeyer flask #4 to minimize the errors in the results. 3- The color of the mixed solutions is blue, so continue swirling the solution in Erlenmeyer flask #4 till the instant color of the solution start changing to yellow, then we stop the stopwatch and record the time. 4- Repeat the procedure at least three times and calculate the average. 5- Tabulate the results in record A. Part B: the effect of temperature on the rate of solvolysis of t butyl chloride in 70%water 30%acetone solvent. a- Experimental procedure: to measure the time necessary for 10 % solvolysis of t butyl chloride (0.1 M concentration) in 70 % water 30% acetone solvent at zero Celsius degree. B, a, I:- 1- Prepare 500 ml of 0.1 M t- butyl chloride in acetone only and put it in an Erlenmeyer flask and label it #1. 2- Prepare 100 ml of 0.1 M NaOH solutions (in water) and put it in an Erlenmeyer flask and label it #2. 3- Using a burette take 30 ml of the solution in Erlenmeyer flask #1and put it in an Erlenmeyer flask and label it #3. 4- By a graduated pipette take 3 ml of sodium hydroxide 0.1 M in an Erlenmeyer flask and label it #4. 5- Using a graduated cylinder measure 67 ml of distilled water added to Erlenmeyer flask #4. 6- Add two drops of bromo-phenol blue indicator to Erlenmeyer flask #4. B, a, II:- 1- Suspend the Erlenmeyer flasks in a water bath full with ice and water, allowing the temperature of the Erlenmeyer flasks and their contents to equilibrate for ten minutes. 2- Adding quickly the solution in Erlenmeyer flask #4 to solution in Erlenmeyer flask #3 and start the stop watch to count for time in seconds. 3- Swirl the mixture and after one or two seconds immediately pour the combined solutions back into Erlenmeyer flask #4 to minimize the errors in the results. 4- The color of the solution after that will become blue, so continue swirling the solution in Erlenmeyer flask #4 till the instant color of the solution start changing to yellow we stop the stop watch and record the time 5- Repeat the procedure at least three times and calculate the average. 6- Tabulate the results in record B. b- Experimental procedure: to measure the time necessary for 10 % solvolysis of t butyl chloride (0.1 M concentration) in 70 % water 30% acetone solvent at a temperature greater than room temperature by ten degrees. B, b, I:- 1- Prepare 500 ml of 0.1 M t- butyl chloride in acetone only and put it in an Erlenmeyer flask and label it #1. 2- Prepare 100 ml of 0.1 M NaOH solutions (in water) and put it in an Erlenmeyer flask and label it #2. 3- Using a burette take 30 ml of the solution in Erlenmeyer flask #1 and put it in an Erlenmeyer flask and label it #3. 4- By a graduated pipette put 3 ml of sodium hydroxide 0.1 M in an Erlenmeyer flask and label it #4. 5- Using a graduated cylinder measure 67 ml of distilled water added to Erlenmeyer flask #4. 7- Add two drops of bromo-phenol blue indicator to flask #4. B, b, II:- 1- Suspend the flasks #3 and #4 in a water bath full with ice and water, allowing the temperature of the flasks and their contents to equilibrate for ten minutes.(to reach the temperature of the water bath) 2- Adding quickly the solution in flask #4 to solution in flask #3 and start the stop watch to count for time in seconds. 3- Swirl the mixture and after one or two seconds immediately pour the combined solutions back into flask #4 to minimize the errors in the results. 4- The color of the mixed solutions is blue, so continue swirling the solution in flask #4 till the instant color of the solution start changing to yellow we stop the stopwatch and record the time 5- Repeat the procedure at least three times and calculate the average. 6- Tabulate the results in record B. Record A Run number Temperature Time of 10 % reaction Average time / seconds Record B Run number Temperature Time required for 10% reaction Average time/seconds Average time/ seconds References; * E. Brady, James. E. Humiston, Gerard., General Chemistry Principles and Structure, second edition, SI version, john Willy and sons, Inc. * Brewester, Vaderwerf and McEwen. Unitized Experiments in Organic Chemistry, 3rd Ed. * Streitwieser, Andrew. H. Heathcock, Clayton. Introduction to Organic Chemistry. * H. Reusch, William. An Introduction to Organic Chemistry. * J. Laidler, Keith. Chemical kinetics. 2nd ed. * Search engines that where used: o www.google.com o www.yahoo.com * Goldwhite, Harold. R. Spielman, John. College Chemistry, 1984