The exposition and complications are introduced right from the start when the theme of the play, marriage, becomes apparent Essay Example For Students

The exposition and complications are introduced right from the start when the theme of the play, marriage, becomes apparent Essay The exposition and complications are introduced right from the start when the theme of the play, marriage, becomes apparent. Theseus and Hippolyta are anxious to wed and are in a Dionysian mood and full of love and bliss. We see the complication shortly after this when Egeus enters the room, greets Theseus and suddenly launches into a twenty line rant due to his vexation right after Theseus states that he does not want anybody making him potentially upset i. . he does not want to be in the midst of any pale companions. We are led to believe that the play will end in tragedy when Theseus attempts to rectify the difficulty between Hermia and her father Egeus. Egeus wants Hermia to marry a man who she doesnt want to and she wants to marry a man, which Egeus doesnt want. Theseus tells Hermia, Either to die the death or to abjure forever the society of men. We will write a custom essay on The exposition and complications are introduced right from the start when the theme of the play, marriage, becomes apparent specifically for you for only $16.38 $13.9/page Order now This means that Hermia has three options: Listen to her father and marry the man he chooses for her Continue to object and be put to death Be sent to a nunnery for the rest of her life This complication is developed when we find that Hermia and Lysander the man Hermia is in love with leave the apollonian realm of Athens and flee into the Dionysian realm of the woods whereby no rules are bound to anybody. Dramatic tension is created in the play as we see it once when Theseus gives Hermia her options i. . a question of how this problem will develop. The repetition of the statement four days in the opening paragraph gives the play a structure and a time span that they will become newlyweds in four days. This also indicated the exposition as well and we also see that the play is a comedy because all comedies end in marriage. We see that love is presented as a main them in the play because it is clear that through Act One Scene One, everybody who is a genuine character has somebody to lov e. There are many different types of relationships; firstly the father daughter relationship between Egeus and Hermia and then the rivals Lysander and Demetrius who are etching for the right to Hermia. True love is shown from Hermia and Lysander and we also see Helenas unrequited love from Demetrius. We see that love is bound up with economics in the sense that Theseus won Hippolyta in battle. This re-enforces the medieval chain of being and shows that women in that time were shown to be objects; in this case Hippolyta is seen as a prize to Theseus. In this play we see that men and women are treated differently. We see that they are both good and bad in different lights but in general we see men are unfaithful but also far more powerful than women. Women are seen to be loyal and true but are seen to be potential prizes and general property. Shakespeare uses figurative language throughout the play. He uses metaphors, similes and semantic fields associated with economics and pastoral imagery to create strong impacts on his play. The metaphor of the moon, a symbol of chastisy, this old moon wanes! shows affection during the night. The constant use of this metaphor and the quote four days serve a constant reminder of the play being a comedy. A simile is used line to a step-dame or a dowager. This associates love and money and bounds them together à ¢Ã¢â€š ¬Ã¢â‚¬Å" the stepson is waiting for the stepmother to die so that he can get all the money. Shakespeare uses stichomythia in two different ways. Once it is used between Hermia and Lysander. They used balanced phrases and agree with each other which show they think alike and that theyre in love. .u516ef0fd1ab26c1bc418c37b693f8cf5 , .u516ef0fd1ab26c1bc418c37b693f8cf5 .postImageUrl , .u516ef0fd1ab26c1bc418c37b693f8cf5 .centered-text-area { min-height: 80px; position: relative; } .u516ef0fd1ab26c1bc418c37b693f8cf5 , .u516ef0fd1ab26c1bc418c37b693f8cf5:hover , .u516ef0fd1ab26c1bc418c37b693f8cf5:visited , .u516ef0fd1ab26c1bc418c37b693f8cf5:active { border:0!important; } .u516ef0fd1ab26c1bc418c37b693f8cf5 .clearfix:after { content: ""; display: table; clear: both; } .u516ef0fd1ab26c1bc418c37b693f8cf5 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u516ef0fd1ab26c1bc418c37b693f8cf5:active , .u516ef0fd1ab26c1bc418c37b693f8cf5:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u516ef0fd1ab26c1bc418c37b693f8cf5 .centered-text-area { width: 100%; position: relative ; } .u516ef0fd1ab26c1bc418c37b693f8cf5 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u516ef0fd1ab26c1bc418c37b693f8cf5 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u516ef0fd1ab26c1bc418c37b693f8cf5 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u516ef0fd1ab26c1bc418c37b693f8cf5:hover .ctaButton { background-color: #34495E!important; } .u516ef0fd1ab26c1bc418c37b693f8cf5 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u516ef0fd1ab26c1bc418c37b693f8cf5 .u516ef0fd1ab26c1bc418c37b693f8cf5-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u516ef0fd1ab26c1bc418c37b693f8cf5:after { content: ""; display: block; clear: both; } READ: An examination of the way two 20th Centuary Film Directors have interpreted Shakespeare's Romeo and Juliet EssayStichomythia is used again between Helena and Hermia however on this occasion they have contrasting and somewhat opposite views which mean that they finish of each others sentences in disagreement. Although in both cases it is indicated that they both show that love is complicated, The course of love never did run smooth. From a Nietzchean perspective, characters and locations within the play can be stereotyped as either Apollonian or Dionysian. Athens is viewed as Apollonian and is strict and strongly bound by laws. However, the woods are viewed as Dionysian which means that no rules are applied to anybody and people are happy and do as they wish. The complications of the play are really rectified here as we see that as people have no rules bound to them they can live their lives freely. In terms of people, we can say that the younger generation of characters in the play are far more Dionysian i. e. Hermia than the older generation who are more Apollonian i. e. Egeus. There are some moments when the duke Theseus is both Apollonian and Dionysian and in general he ends up in a Dionysian mood e. . he is very Apollonian when he is giving Hermia her options and then speaks to her in a very friendly manner. It is said that the perfect society would be when Apollo and Dionysius dance together in which they do at the end of the play. In Athens when the law is too strict for Hermia to marry Lysander, the laws are suddenly bent and the permission is granted. From here we can see that the different societies merge together into wholesome agreement and there are no longer any conflicts regarding Apollo or Dionysius perspectives.

Pressure System Essays

Pressure System Essays Pressure System Essay Pressure System Essay A Pressure system with two resistances Consider a pressure system with tank of volume V and varying pressure P at constant temperature. Fl is inlet flow through resistance RI with source pressure Pl. F2 is output flow through resistance R2 and flowing out at pressure P2. As the flows into and out of the tank are both influenced by the tank pressure, both flow resistances affect the time constant. A typical control problem would be to manipulate one flow rate (either in or out) to maintain a desired drum pressure. Variables: Controlled variable: P Manipulated variable: F2 Disturbance variable: Fl Here we develop a model that describes how the tank pressure varies with the inlet and outlet flow rates. Making a mass balance, Accumulation in the tank = Input flow rate (Fl) Output flow rate (F2) Flows (Ohms law is I = Driving Force Resistance dp dt RIR2 V (Rl+R2) RI +R2 RI R2 ( RI +R2) + ( Rl+R2) rp dP+p = KI Pl+K2P2 Where Kl= (Eq. l) VRI R2 Taking Laplace transform of equation (Eq. l) ps P(S) + P(S) = KI PI'(S) + K2P2(S) P(S) (1+ IPS) = KI PI'(S) + K2 P2(S) 1+1 s + KI P2(S) (Eq. 2) Equation 2 can be represented in a block diagram as below: rps+l rp S+l A Block Diagram of a pressure system with two resistances Assume: RI = 2 rntn,t-n3; R2 v=5rn3 2+4 20 3 6. 6676mtn l. Processing Without Control Where K ? 4 = 0. 667; Assuming step change from 2 m3/min to 3 m3/min in the disturbance variable: S(3S+1) Disturbance response without Control 0. 8 0. 4 0. 2 10 50 time (min) II. Proportional Integral Control for the Disturbance Changes Process: Process Transfer function: Gp(s) = Disturbance Transfer function: Gd(s) = I-I(S) Pressure Sensor-Transmitter (Analyzer): Gm(s) = Km m s+l but negligible dynamics > > > Gm(s) = Km Pm(s) = Gm(s)Pa(s) Block diagram for the pressure sensor-tramsmitter pa(S) m S+l Pm(s) Controller (PI controller): GC(S) = ) pa(S) = Control Valve: GV(S) = KV Pt'(S) o. S+l ; but negligible dynamics r > > > Comparator: E(s) = P sp (s) P m (s) P sp (s) = K m P sp (s) Block diagram for the entire process: Rd(S Psp(s) P sp (s) KC(I + ) pa(S) KIP PLI(S) Where: Y=controlled variable U=manipulated variable D=disturbance variable (also referred to as load variable) P=controller output E=error signal Ym=measured value of Y Ysp=set point sp=internal set point (used by the controller) Yu=change in Y due to U Yd=change in Y due to D Gc=controller transfer function GFtransfer function for final control element (including K , if required) IP Gp=process transfer function Gd=disturbance transfer function

The customer pyramid ethical issues Essay Example | Topics and Well Written Essays - 500 words

The customer pyramid ethical issues - Essay Example Initially, Microsoft Corporation used functional structure in which various personnel would be categorized and placed under on department based on their specialization. As the company grew, functional structure was rendered inappropriate. In the current structure (divisional), the company has divisions with each unit focusing on a specific line of goods. Corporate culture is the shared beliefs, ideas, values, traditions and behavior patterns that uniquely identify one organization from another. The belief system and values that members of a particular company subscribe extensively influence the exhibited organizational behavior. Microsoft Corporation was founded on the values and principles held dearly by its pioneer, Bill Gates. Gates believed initiating a computer company that could ‘enlighten’ and make even the less fortunate persons in the society realize their dreams would be noble. It is this initial deep-rooted philosophy that Microsoft has been built on to become what it is today. Currently, the company subscribes to market culture in which all focus is on the customer. The company seeks to efficiently and diligently carry out its tasks to meet the demands of the worldwide customers (King and Lawley, 98). One of the major reasons why Microsoft has grown steadily in this competitive industry is the marketing unit. The company utilizes platforms such as the internet, retail outlets and other resellers to meet the targeted global market. The legal support Microsoft Corporation has received enables it to flex the agreements terms in a way that supports its marketing process. For example, the Enterprise Agreement Direct Advisors (EDA) is one of those that have substantially supported the company’s marketing. Consequently, the finance situation at Microsoft is a cornerstone in its sustainability and development. Recently,

Has or Can the West be a Chance for Islam Essay

Has or Can the West be a Chance for Islam - Essay Example They were naturally inspired by what they had known and experienced in their countries of origin" The democratic society that reigns in America makes major concessions and overtures to all forms of religious practices including education. However, one must address the obvious differences in the social doctrines of Islam and America. Whereas, America has the continuity of a successful democracy, Islam is subject to changes made by approved ulama (scholars). These scholars are often from the Middle East therefore, making changes that suit and reflect foreign sentiments towards American society. These factors have been a major contributor to the rise in terrorist affiliations amongst Western Muslims, as foreign Sheikhs and Mullahs have used aggression to permeate the social fabric of those who form the modern doctrine of Islamic jurisprudence and education in the Middle East. From there, this contaminated doctrine guides the societal pursuits of American Muslim groups. This catalysis effect has caused groups like Al Qaeda who represent the Wahabi sect of Islam which is made up of a minority of 10% of Muslims worldwide to have a dominant influence on what is taught in western madrassahs because of their significant influence in the Middle East that has been projected across over 60 nations abroad. These problems are greatly increased by the strategic alliance that seen Al Qaeda and their fellow Wahabi scholars join forces with Shia and Sunni scholars in the Middle East which represent the leadership of over 80% of Muslims worldwide. This reality brings serious questions to mind as to how to prevent terror from emanating from the Islamic curriculum of western Muslims who either brought this type of doctrine to America from overseas or seek guidance from those who are influenced by the same. Terror based Fatwahs have always benefited from these types of parameters that continue to control the 'Islamic education' in the west.Jones 3 Integration The problems noted in the education section clearly present very serious concerns in regard to integration. What type of integration will take place (terrorist intent or democratic reciprocity) It would be extremely nave for one to suggest that a 'Islamic education' that is contaminated by those with terrorist intent will not make allowances for societal catalysis effects that are negative and potentially lethal in every sense of the word. It is imperative that western Muslims make significant strides in the way of achieving scholastic autonomy in order to protect their educational system, as this will prove to be a critical step in terror prevention in addition to setting a new precedent in regards to those who think that western Muslims are puppets of scholars in the Middle East. This type of initiative will potentially save thousands of lives through the

Background and Motivation Essay Example for Free

Background and Motivation Essay The terms â€Å"corporate blog† or â€Å"business blog† have appeared very often in both of newspapers and academic journals. Increasing attention has been paid in understanding this new phenomenon. According to the Investor Business Daily, â€Å"there are 45% USA’s largest public companies have corporate blogs. † (where is your citation – is this also Klosek? ) Business Week has proposed the following: â€Å"Corporate blog is a blog used by the company to reach some goals. It helps businesses communicate internally more cheaply and effectively than workflow management software and e-mails. † A corporate blog can be one of the more successful popular communication tools after the E-mail, ICQ and MSN. In 2006, Business Week Online issued that A Weblog (or blog) can be a powerful marketing tool, but it can also expose a business to a legal minefield. As reported by Jacqueline Klosek, â€Å"Blogs can be used to market a companys products and services, facilitate communications with clients, and even counter negative publicity† (Klosek, 2006). Several studies have pointed out the advantages of employing corporate blogging, citing that corporate blogging may be a tool for search engine marketing; a means of building good relationships with the customer; building of a company’s reputation; helping to put human voice to a company; serving as a way for employees and customers to communicate; and a tool for directly and immediately getting the customer’s feedback. There are still many threats that may hinder the adoption of the corporate blog, such as legal impediments with regards to violation of intellectual property rights and mismanagement leading to an eventual downfall of the organization; the disclosure of trade secrets can jeopardize the blogger’s career since this problem may cause his termination from the position, and also â€Å"Careless statements posted on a company-sanctioned blog can come back to haunt the company through litigation and other avenues† Klosek (2006) stresses. Since the study and research in corporate blogging phenomenon is still in its early days, scholars who have conducted empirical studies only focus on the benefits and risks when adopting the corporate blog, or the motivation behind creating corporate blog. It’s lack of analyzing the existing utilization and the effects of corporate blog from a systematic theoretical perspective. the DOI theory (Rogers, 1995, 2003) becomes mature, it can be applied in explaining how and why an innovation can be widely adopted and diffused. In order to find out the reasons indicate why corporate blog as a new innovation has been widely adopted and successful diffused, the DOI theory can be an effective framework for analyzing corporate blogging phenomenon. Thus, this paper aims to determine why the corporate blog as a new innovation is being widely adopted and used by the both the individual blogger and various IT organizations; the motivation in adopting blogging; the benefits of the corporate blog to organizations; and the reasons for its success. The research also tries to explain how and why the corporate blog is welcomed and has become a popular and successful new innovation, and the compatibility of its utilization with the existing values of its users. Thus, the author has conducted an empirical study in order to answer these problems from the Diffusion of Innovation theory (DOI) perspective. IT industry companies have been selected as samples for this study.

History of the Laser

History of the Laser INTRODUCTION The name LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. Light is really an electromagnetic wave. Each wave has brightness and color, and vibrates at a certain angle, so-called polarization. This is also true for laser light but it is more parallel than any other light source. Every part of the beam has (almost) the exact same direction and the beam will therefore diverge very little. With a good laser an object at a distance of 1 km (0.6 mile) can be illuminated with a dot about 60 mm (2.3 inches) in radius. As it is so parallel it can also be focused to very small diameters where the concentration of light energy becomes so great that you can cut, drill or turn with the beam. It also makes it possible to illuminate and examine very tiny details. It is this property that is used in surgical appliances and in CD players. It can also be made very monochromic, so that just one light wavelength is present. This is not the case with ordinary light sources. White light contains all the colors in the spectrum, but even a colored light, such as a red LED (light emitting diode) contains a continuous interval of red wavelengths. On the other hand, laser emissions are not usually very strong when it comes to energy content. A very powerful laser of the kind that is used in a laser show does not give off more light than an ordinary streetlight; the difference is in how parallel it is. Before the Laser there was the Maser In 1954, Charles Townes and Arthur Schawlow invented the maser (microwave amplification by stimulated emission of radiation), using ammonia gas and microwave radiation the maser was invented before the (optical) laser. The technology is very close but does not use a visible light. The maser was used to amplify radio signals and as an ultrasensitive detector for space research. Many different materials can be used as lasers. Some, like the ruby laser, emit short pulses of laser light. Others, like helium-neon gas lasers or liquid dye lasers emit a continuous beam of light. Laser action Lasers are possible because of the way light interacts with electrons. Electrons exist at specific energy levels or states characteristic of that particular atom or molecule. The energy levels can be imagined as rings or orbits around a nucleus. Electrons in outer rings are at higher energy levels than those in inner rings. Electrons can be bumped up to higher energy levels by the injection of energy-for example, by a flash of light. When an electron drops from an outer to an inner level, excess energy is given off as light. The wavelength or color of the emitted light is precisely related to the amount of energy released. Depending on the particular lasing material being used, specific wavelengths of light are absorbed (to energize or excite the electrons) and specific wavelengths are emitted (when the electrons fall back to their initial level). In a cylinder a fully reflecting mirror is placed on one end and a partially reflecting mirror on the other. A high-intensity lamp is spiraled around the ruby cylinder to provide a flash of white light that triggers the laser action. The green and blue wavelengths in the flash excite electrons in the atoms to a higher energy level. Upon returning to their normal state, the electrons emit their characteristic ruby-red light. The mirrors reflect some of this light back and forth inside the ruby crystal, stimulating other excited chromium atoms to produce more red light, until the light pulse builds up to high power and drains the energy stored in the crystal. High-voltage electricity causes the quartz flash tube to emit an intense burst of light, exciting some of the atoms in the ruby crystal to higher energy levels. At a specific energy level, some atoms emit particles of light called photons. At first the photons are emitted in all directions. Photons from one atom stimulate emission of photons from other atoms and the light intensity is rapidly amplified. Mirrors at each end reflect the photons back and forth, continuing this process of stimulated emission and amplification. The photons leave through the partially silvered mirror at one end. This is laser light. EINSTEINS THEORY OF LASER Although Einstein did not invent the laser his work laid the foundation. It was Einstein who pointed out that stimulated emission of radiation could occur along with spontaneous emission absorption. He used his photon mathematics to examine the case of a large collection of atoms full of excess energy and ready to emit a photon at some random time in a random direction. If a stray photon passes by, then the atoms are stimulated by its presence to emit their photons early. More remarkably, the emitted photons go in the same direction and have exactly the same frequency as the original photon ! Later, as the small crowd of identical photons moves through the rest of the atoms, more and more photons will leave their atoms early to join in the subatomic parade. All it took to invent the laser was for someone to find the right kind of atoms and to add reflecting mirrors to help the stimulated emission along .The acronym LASER means Light Amplification by (using Einsteins ideas about) Stimulated Emission of Radiation. Stimulated Emission A third type of photon-related electron transitions in an atom is stimulated emission. Suppose an electron is in a higher energy level and a photon comes along with an energy equal to the difference between the electrons energy and a lower energy.Then the photon will stimulate the electron to fall into the lower energy state, thereby emitting a photon. The emitted photon will have the same energy as the original photon, and viewed as waves we will then have two waves emerging from the atom in phase with the same frequency. Such waves will constructively interfere, leading to a more intense wave. This is the principle behind the laser, which stands for Light Amplification by Stimulated Emission of Radiation. In a laser atoms are kept in an excited state by pumping the laser, and some photons are inserted. This causes some atoms to undergo stimulated emission, and the resulting photons cause other atoms to undergo stimulated emission, leading to a chain reaction. The resultant light is very intense and coherent (composed of one frequency), and can be easily focused. TYPES OF LASER ON THE BASIS OF ENERGY LEVEL Two level: In this photon from mata stable state jumps to second level on excitation Three level: In this photon from mata stable state jumps to third level on excitation Four level: In this photon from mata stable state jumps to fourth level on excitation ON THE BASIS OF MATERIAL USED Gas lasers Helium Neon Laser It is used in Interferometer, holography, spectroscopy, barcode scanning, alignment, optical demonstrations. Argon Laser It is used in Retinal phototherapy (for diabetes), lithography, confocal microscopy,spectroscopy pumping other lasers. Krypton Laser This laser is used in Scientific research, mixed with argon to create white-light lasers, light shows. Xenon ion Laser used in scientific research. In this type of laser many lines throughout visible spectrum extend into the UV and IR. Nitrogen Laser It is used in Pumping of dye lasers, measuring air pollution, scientific research. Nitrogen lasers can operate superradiantly (without a resonator cavity). Amateur laser construction. Carbon Dioxide laser It is used in Material processing (cutting, welding, etc.), surgery. It is produced by Transverse (high power) or longitudinal (low power) electrical discharge. Excimer Laser This type of laser is produced by excimer recombination via electrical discharge.It is used in Ultraviolet lithography for semiconductor manufacturing, laser surgery, LASIK Chemical lasers These type of lasers are used as directed-energy weapons like: Hydrogen Fluoride laser: It is formed by Chemical reaction in a burning jet of ethylene and nitrogen trifluoride (NF3) and is used in research for laser weaponry by the U.S. DOD, operated in continuous wave mode, can have power in the megawatt range. Deuterium fluoride laser: It is used in MIRACL, Pulsed Energy Projectile Tactical High Energy Laser COIL (Chemical oxygen-iodine laser): It is produced by Chemical reaction in a jet of singlet delta oxygen and iodine and is used in Laser weaponry, scientific and materials research, laser used in the U.S. militarys Airborne laser, operated in continuous wave mode, can have power in the megawatt range. DYE LASER: These type of lasers are used in Research, spectroscopy, birthmark removal, isotope separation. The tuning range of the laser depends on which dye is used. Metal-vapor lasers Helium-cadmium (HeCd) metal-vapor laser: They are used in Printing and typesetting applications, fluorescence excitation examination (ie. in U.S. paper currency printing), scientific research. Helium-mercury (HeHg) metal-vapor laser: They are used in Rare, scientific research, amateur laser construction. Helium-silver (HeAg) metal-vapor laser, Neon-copper (NeCu) metal-vapor laser: They are used in scientific research. Copper vapor laser: It is used in Dermatological uses, high speed photography, pump for dye lasers. Gold vapor laser: This type of laser is used in Rare, dermatological and photodynamic therapy uses. Solid-state laser Ruby laser: Used in Holography, tattoo removal. The first type of visible light laser invented; May 1960. Nd:YAG laser : used in Material processing, rangefinding, laser target designation, surgery, research, pumping other lasers (combined with frequency doubling to produce a green 532 nm beam). One of the most common high power lasers. Usually pulsed (down to fractions of a nanosecond) Er:YAG laser: used in Periodontal scaling, Dentistry Neodymium YLF (Nd:YLF) solid-state laser: Mostly used for pulsed pumping of certain types of pulsed Ti:sapphire lasers, combined with frequency doubling. Neodymium doped Yttrium orthovanadate (Nd:YVO4) laser: Mostly used for continuous pumping of mode-locked Ti:sapphire or dye lasers, in combination with frequency doubling. Also used pulsed for marking and micromachining. A frequency doubled nd:YVO4 laser is also the normal way of making a green laser pointer. Neodymium glass (Nd:Glass) laser: Used in extremely high power (terawatt scale), high energy (megajoules) multiple beam systems for inertial confinement fusion. Nd:Glass lasers are usually frequency tripled to the third harmonic at 351 nm in laser fusion devices. Cerium doped lithium strontium(or calcium) aluminum fluoride (Ce:LiSAF, Ce:LiCAF): Used in Remote atmospheric sensing, LIDAR, optics research. Erbium doped and erbium-ytterbium codoped glass lasers: These are made in rod, plate/chip, and optical fiber form. Erbium doped fibers are commonly used as optical amplifiers for telecommunications. Semiconductor laser Semiconductor laser diode has working wavelength between 0.4-20Â µm, depending on active region and are used in Telecommunications, holography, printing, weapons, machining, welding, pump. There are many different types of semiconductor lasers like: AlGaAs : used in Optical discs, laser pointers, data communications. 780 nm Compact Disc player laser is the most common laser type in the world. Solid-state laser pumping, machining, medical. InGaAsP : used in Telecommunications, solid-state laser pumping, machining, medical. Quantum cascade laser : used in Research,Future applications may include collision-avoidance radar, industrial-process control and medical diagnostics such as breath analyzers. Other types of lasers Free electron laser : This type of laser is having a broad wavelength range (about 100 nm several mm); one free electron laser may be tunable over a wavelength range and is basically used in atmospheric research, material science, medical applications. Gas dynamic laser : used In Military applications; can operate in CW mode at several megawatts optical power and is produced by Spin state population inversion in carbon dioxide molecules caused by supersonic adiabatic expansion of mixture of nitrogen and carbon dioxide. Nickel-like Samarium laser : It has pumping source Lasing in ultra-hot samarium plasma formed by double pulse terawatt scale irradiation fluences created by Rutherford Appleton Laboratorys Nd:glass Vulcan laser and first demonstration of efficient saturated operation of a sub-10 nm X-ray laser, possible applications in high resolution microscopy and holography, operation is close to the water window at 2.2 to 4.4 nm where observation of DNA structure and the action of viruses and drugs on cells can be examined. Raman laser, uses inelastic stimulated Raman scattering in a nonlinear media, mostly fiber, for amplification. It finds its applications in Complete 1-2 Â µm wavelength coverage; distributed optical signal amplification for telecommunications; optical solitons generation and amplification APPLICATIONS Industrial Applications of Laser Today, laser can be found in a broad range of applications within industry, where it can be used for such things as pointing and measuring. In the manufacturing industry, laser is used to measure the ball cylindricity in bearings by observing the dispersion of a laser beam when reflected on the ball.Laser also works as a spirit level and can be used to indicate a flat surface by just sweeping the laser beam along the surface. This is, for instance, used when making walls at building sites. In the mining industry, laser is used to point out the drilling direction. Laser technologies have also been used within environmental areas. One example is the ability to determine from a distance the environmental toxins in a column of smoke. Other examples are being able to predict and measure the existence of photochemical smog and ozone, both at ground level where it isnt wanted and in the upper layers of the atmosphere where it is needed. Laser is also used to supervise wastewater purification. Laser works as a light source in all fiber optics in use. It has greater bandwidth. It is insensitive to interference from external electrical and magnetic fields. Fiber optics is used increasingly often in data and telecommunications around the world. Medicine Laser is used in medicine to improve precision work like surgery. Brain surgery is an example of precision surgery that calls for the surgeon to reach the intended area precisely. To make sure of this, lasers are used both to measure and to point in the area in question. Birthmarks, warts and discoloring of the skin can easily be removed with an unfocused laser. The operations are quick and heal quickly and, best of all, they are less painful than ordinary surgery performed with a scalpel. RECENT APPLICATIONS DVD A DVD player contains laser that is used not because it produces a parallel beam, but rather because the light emerges from a tiny point, which enables it to be focused on the different layers of the disc. The information, ones and zeros, is stored in several layers, and only one layer is to be read at a time. Every point on a particular layer is read during every revolution of the disc. In order to make room for a lot of information on every disc, the beam has to be focused on as small an area as possible. This cannot be done with any other light source than a laser. Laser Pointers Lasers pointers are made from inexpensive semiconductors laser as together with lens produce a parallel beam of light that can be used to make a bright spot to point with. Their range is very large. If one points at a surface 200 meters (220 yards) distant in the dark, a person standing close to the object being pointed at will have no trouble seeing the shining spot (of course, someone else has to hold the laser). On the other hand, the one holding the pointer will have difficulty seeing the spot. The eternal question of range has more to do with the lights behavior on its way back to the sender than with the length of the beam. Laser Sights Laser sights for rifles and guns can be based on several different principles. Some send a laser beam parallel to the trajectory so that the point of impact becomes visible. This method exposes the marksman. Some project a red dot inside a telescopic sight (instead of cross hairs). In both cases, the dot can be produced with a ring around it. Speed Measurement Using Laser The method the police use to measure car speed is based on a laser signal that is sent towards the target. This beam bounces back and is mixed with light that has not hit the car. The result is an oscillation the same as when you tune a guitar with higher frequency (more treble) the faster the target moves. The speed has to be measured straight from the front or from the back. If it is measured at an angle, the speed is underrated. This means that you cannot get false values that are too high. The measurement is dependent on the car having something that reflects well. The license plate is perfect, as are different types of reflecting objects. Fogged surfaces are okay, but reduce the maximum distance. Laser Distance Meter The primary use of laser distance meters today is surveyors and constructors, Least spectacular is the so-called parking assistance that helps the driver to estimate the distance to the car behind when parking. A more recent application measures the distance to the car in front of the driver when driving on highways or other roads. You simply lock in the distance to the car in front of you in order to maintain that distance. This makes driving more efficient and faster as long as it all works. This kind of laser is found in most robots with mechanical vision. LASER DISCOVERIES 1971 Gabor (alone) was given the prize, having founded the basic ideas of the holographic method, which is a famous and spectacular application of laser technology. At first just a method of creating 3-D pictures, it has since become a useful tool for the observation of vibrating objects. Much of what we today know about how musical instruments produce their tones is due to the use of holograms. In addition to holograms that can be bought and hung on a wall, simpler holograms can be found on many other things where you might not expect to find them. Small holograms are present on many credit cards and identity cards in order to make them more difficult to forge. 1981 Bloembergen and Schawlow received the prize for their contribution to the development of laser spectroscopy. One typical application of this is nonlinear optics which means methods of influencing one light beam with another and permanently joining several laser beams (not just mixing them compare the difference between mixing two substances and making them chemically react with one another). These phenomena mean that a light beam can in principle be steered by another light beam. If in the future someone intends to build an optical computer (that could be much faster and much more efficient in storing data), it would have to be based on a nonlinear optic. When using optical fibers, for example in broadband applications, several of the switches and amplifiers that are used require nonlinear optical effects. 1997 Chu, Cohen-Tannoudji and Phillips et al. received the prize for their developments of methods to cool and trap atoms with laser light which is a method for inducing atoms to relinquish their heat energy to laser light and thus reach lower and lower temperatures. When their temperature sinks very close to absolute zero, atoms form aggregates (make clumps) in a way that reveals some of the innermost aspects of nature. And that is the important application of laser cooling, namely to make us understand more of nature. Very soon after the discovery other scientists started to use the technique to further develop closely related areas. 2000 Alferov and Kroemer were given the prize for their development within the field of semiconductor physics, where they had studied the type of substances that was first used to build semiconductor lasers, that is, the kind of miniature lasers that today have become the cheapest, lightest and smallest. The idea is to produce both the light source and energy supply and place the mirrors in one crystal (less than 1 mm facet, with many sequences). This has become not only the basis for many cheap and portable appliances, but also the foundation in optical information networks. The CD player, laser writer, laser pointer and the bar code reader the cashier at the supermarket uses, are all based on their discovery. REFRENCES NEWAGE PUBLISHER PVT. LTD.,LASERANDNONLINEAROPTICS,P.B LAUD macmillan publisher,laser theory and application,k.dhyacagrajan,ak.ghatak universities publishers,laser,e.a siegman http://www.nobel.org

Guantanamo Bay Essay

The United States of America prides itself as being one of the most powerful democracies around the world and The U. S. ’s continued use of Guantanamo Bay, a corrupt institution, as an interrogation facility provides a great example of their ignorance toward basic human rights, their unwillingness to release possibly innocent immigrants back to their countries and lastly disregarding the option of altering interrogation methods or the closing of such an institution. The U. S. being one of the world’s superpowers also infringes upon human rights by funding and supporting Guantanamo Bay. Guantanamo Bay demonstrates the U. S. ’s willingness to gain military intelligence at the cost of possible innocent people’s sanity and at times their lives. Residents at Guantanamo Bay are often held without being told about what they are being held for, their right to habeas corpus is withdrawn from them. Also, on average only one in every one hundred and seventy two detainees at Guantanamo Bay has been given a trial. In addition, the Pentagon has been reluctant to allow aid agencies like the Red Cross to visit the detainees and inspect their living conditions. The torture at Guantanamo Bay is so severe that it caused three residents (Mani al-Utaybi, age 30; Yasser al-Zahrani, age 20; and Ali Abdullah Ahmed, age 37) to commit suicide . However, there is controversy as to whether these three men killed themselves or were strangled by Guantanamo Bay guards or interrogators and strung up to make their death appear like a suicide. During year 2002 Canada became directly involved with Guantanamo Bay. A fifteen year old kid who was alleged to have thrown a grenade killing an American soldier was brought to Guantanamo Bay and was detained there until last year. Omar Khadr was held at Guantanamo Bay and during 2008 he applied to the federal court for judicial review of the governments decision to not seek his repatriation. He claimed that his s. 7 and rights were infringed. â€Å"Everyone has the right to life, liberty and security of the person and the right not to be deprived thereof except in accordance with the principles of fundamental justice. † The court found Khadr’s s. 7 rights breached as a result of the â€Å"frequent flyer program†. Khadr was not given any immediate counsel at the time of his arrest, breaching s. 0(b) of The Canadian Charter of Rights and Freedoms. â€Å"Everyone has the right on arrest or detention to retain and instruct counsel without delay and to be informed of that right. † Like many other detainees at Guantanamo Bay Khadr’s right to habeas corpus was infringed, which is s. 10(c) of the charter. â€Å"Everyone has the right on arrest or detention to have the validity of the detention determined by way of habeas corpus and to be released if the detention is not lawful. † Lastly, Khadr was brought to Guantanamo Bay during year 2002 and was not tried for murder until year 2007, which breaches his s. 1(b) rights. â€Å"Any persons charged with an offence has the right to be tried within a reasonable time. † The most terrible thing about both Guantanamo Bay’s disregard for human rights and treatment of foreigners is the strong aversion The United States has towards the reconstruction and the development of new methods of operation for Guantanamo Bay. Gathering military intelligence is a high priority but that priority should never be at the cost of a possible innocent person’s well being. Therefore, the idea of closing an institution like Guantanamo Bay should not seem extrinsic. However, interrogation facilities are needed in order for the U. S. to stay vigilant with anti-terrorism, but there should be a need to modify Guantanamo Bay’s practices so that detainees can keep their rights. Torin Nelson, a former Guantanamo Bay employee interviewed in the documentary â€Å"Gitmo – a documentary on Guantanamo Bay† spoke regarding Guantanamo Bay’s current interrogation tactics. â€Å"In my humble opinion they’re completely ineffective and detrimental to the overall mission†¦ I guarantee you I could get one person to give more information (compared to trying to get information from ten detainees using current methods) if I was to convince that one person that we’re the good guys and we’re their friends. † In summation, Guantanamo Bay is a corrupt institution because it ignores fundamental human rights by cruelly treating residents, it withholds possible innocent detainees like Omar Khadr and The U. S. is not showing any sign of changing Guantanamo Bay’s methods even though it might prove a more efficient way of gathering military intelligence.

Equality Act Essay

Learning intentions: Investigating the legislation that protects all groups covered Breaking down the key features of the legislation Assessing the ways in which the legislation addresses their needs Evaluating the strengths and weaknesses of the legislation To consider how a range of care workers would use anti-discriminatory practise Success Criteria Can I name the legislation that protects all groups covered? Can I explain the key features of this legislation? Can I assess how this legislation meets the client’s needs? Can I evaluate the strengths and weaknesses of this act? Research Questions: 1. New definitions of discrimination As well as direct discrimination, indirect discrimination, harassment and victimisation The Equality Act outlines three new categories of discrimination that certain groups of individuals are protected against. Define the three additional types of discrimination below: 2. Who is protected under the Equality Act (protected characteristics)? a) Age- The Act protects employees of all ages but remains the only protected characteristic that allows employers to justify direct discrimination, i.e. if an employer can demonstrate that to apply different treatment because of someone’s age constitutes a proportionate means of meeting a legitimate aim, then no discrimination will have taken place. The Act continues to allow employers to have a default retirement age of 65, as long as the default retirement age remains. b) Disability- The Act includes a new protection arising from disability and now states that it is unfair to treat a disabled person unfavorably because of something connected with a disability. An example provided is the tendency to make spelling mistakes arising from dyslexia. Also, indirect discrimination now covers disabled people, which mean that a job applicant could claim that a particular rule or requirement disadvantages people with that disability. c) Gender reassignment- It is discriminatory to treat people who propose to start to or have completed a process to change their gender less favorably, for example, because they are absent from work for this reason. d) Marriage and civil partnership- The Act continues to protect employees who are married or in a civil partnership. Single people are however not protected by the legislation against discrimination. e) Pregnancy and maternity- The Act continues to protect women against discrimination because they are pregnant or have given birth. f) Race- The Act continues to protect people against discrimination on the grounds of their race, which includes color, nationality, ethnic or national origin. g) Religion or belief- The Act continues to protect people against discrimination on the grounds of their religion or their belief, including a lack of any belief. h) Sex- The Act continues to protect both men and women against discrimination on the grounds of their sex. i) Sexual orientation- The Act continues to protect bisexual, gay, heterosexual and lesbian people from discrimination on the grounds of their sexual orientation. http://www.fpb.org/hottips/601/The_Equality_Act_2010:_protected_characteristics_and_types_of_discrimination.htm 3. Research examples of discrimination and place them into the chart in the correct place Type of Discrimination Example Direct discrimination For example, when people are treated less favorably than others because they have some ‘irrelevant’ characteristic; i.e., they are from a different ethnic background or belong to a religious minority. Indirect discrimination For example, a dress code that requires women to wear a knee length skirt (which has no direct relation to their ability to carry out their work) could be indirectly discriminatory against women from certain cultural or religious groups. Harassment Victimisation For example, a person is victimized (punished or treated unfairly) because  they have made a complaint, or are believed to have made a complaint, or supported someone who has made a complaint (this is a form of harassment). Discrimination by association For example, refusing to promote a woman who has some caring duties because her mother has recently had a stroke is discrimination arising from association. Perception discrimination For example, a heterosexual man who has a gay friend cannot be discriminated against because someone believes (wrongly) that he is also gay. Third party harassment For example, a waitress of Asian origin has complained on several occasions to her employer that a particular customer has been making racist remarks to her. The employer should take steps to protect the employee from harassment by a third-party, such as banning the customer from the restaurant.

A Critical Analysis Of The Relationship Between Urban Conditions And Street Gangs In The United States, 1950 - 2010 The WritePass Journal

A Critical Analysis Of The Relationship Between Urban Conditions And Street Gangs In The United States, 1950 - 2010 INTRODUCTION A Critical Analysis Of The Relationship Between Urban Conditions And Street Gangs In The United States, 1950 2010 from: guardian.co.uk/world/feedarticle/9796446 Maxson, C.L., Whitlock, M.L., and Klein, M.W. 1998. Vulnerability to street gang membership: Implications for practice. Social Service Review, 72, pp. 70–91. Moffitt, T. 1993. Adolescence-limited and life-course-persistent antisocial behavior: A developmental taxonomy. Psychological Review, 100(4), pp. 674–701. Miller, W.B., 1974. American youth gangs: Past and present. In Current Perspectives on Criminal Behavior. New York, NY: Knopf, pp. 410–420. Miller, W. B., 1958. Lower class culture as generating milieu of gang delinquency. Journal of social issues 14, pp. 5–19. Mincie, J., 1999. Youth and Crime: A Critical Introduction. Sage publications. Schlossman, S., 1995. Delinquent Children: The Juvenile Reform school. In: Morris. N D. Rothman (eds), The Oxford History of the Prison, Spergel, I.A., 1995. The Youth Gang Problem. New York, NY: Oxford University Press. Sullivan, M.L., 1989. Getting Paid: Youth Crime and Work in the Inner City. Ithaca, NY: Cornell University Press. Thornberry, T.P., Krohn, M.D., Lizotte, A.J., and Chard-Wierschem, D. 1993. The role of juvenile gangs in facilitating delinquent behavior. Journal of Research in Crime and Delinquency, 30(1), pp. 55–87. Thrasher, F.M., 1927. The gang: a study of 1,313 gangs in Chicago. Chicago: university of Chicago press. Vigil, J.D. 1988. Barrio Gangs: Street Life and Identity in Southern California. Austin, TX: University of Texas Press. Wilson, W. J., 1987. The Truly Disadvantaged: The Inner City, the Underclass, and Public Policy. Chicago: University of Chicago Press.

Free Play essays

Free Play essays The title of the second section in the book Free Play appropriately called The Work. The word work has several meanings, for most it is some act of labor or some skill they perform for money. To others work could be an artistic term, a final product of creativity. Not only could a work be a painting or a sketch but it could also be a score or in this case a dance, choreographed or not. In everyday life one always hears practice makes perfect. Lately in Improvisational Structures class we have been practicing improvs for Winterdance. However in this case we are just getting used to structures and we are also still growing closer as a group. According to Free Play, Competence that loses a sense of its roots in the playful spirit becomes ensconced in rigid forms of professionalism. There have been several improvs when the group became too serious or too focused on making the improv look good. Usually as a group we feel different after those improvs and realize that we need to let our playful side show through again. Even though there are structures for the improvs, the structures changes every time and are not dead set. That is the beauty of improvisations there is no dead set path that one must follow. Structures ignites spontaneity. If someone is feeling flowing and soft, not everyone has to feel that way. The next chapter of the book The Power of Limits explains how there are different types of limits, personal limits, limits from your body, limits from the group. As in the case of the body, many rules and limits are God-given in that they are inherent not in styles or social conventions but in the art medium itself: the physics of sound, of color, of gravity and movement. Limits can grow and expand as one pushes them. For instance my bodys limit has increased tremendously from the beginning of the semester. Anothe ...

Australia Voting and Elections Essay Example | Topics and Well Written Essays - 1750 words

Australia Voting and Elections - Essay Example Identified with very strong identifiers people are more likely to vote in accordance with their identification and that identification is not very strong and is mostly influenced. Voters also have strategic choices. These are influenced by the number of votes they have been allocated, the way preferences may be ordered, and the manner of distributing votes among the candidates. Party identifiers influence the voters to take their decisions earlier and those people who take their decision earlier are often determined about their voting and they don't feel hesitation. Voting behavior in Australia is also influenced through developing a retrospective view which emerges from an assessment of several social, economical and political issues. A view or assessment on a particular issue helps the voters taking their decisions. So the comments of a party leader, his view on especial issue, the decision taken by him, party philosophy change the voter's mentality. The decisions, changes and reforms taken by the previous government make deep impression in the voting behavior of Australian citizens. Different electoral systems can prompt different voting behavior. It cannot be assumed that every voter would support the same party under one system as another. Since around the middle of the 1960s, one of the most important elements of electoral politics in almost all advanced, democratic industrial societies has been the noticeable weakening of party identification. The various aspects of party identification have already influenced and are influencing the elections of Australia time to time and the share of power which is responsible various political events. For example, in 1996, however, there was a notable drop in the level of identification with the ALP, but no corresponding rise for the Coalition. In 1998 the level of identification with the ALP recovered slightly but then declined again in 2001 (to a level slightly below that of even 1996) and even further in 2004. The level of identification with the Coalition parties has remained relatively constant at around 40 per cent since 1979 and the result has also followed consecutive effects. For another instance, it can be mentioned the possibility that the increased measured level of party identification for the Australian Labor Party (ALP) in 1987 may have been a result of this question-wording effect (though even if true, this still would account for only a part of the effect). There may also have been an electoral system effect resulting from the Australian use of exhaustive preferential voting (Charnock). It has long been suspected that the order in which candidates' names are placed on a ballot somehow influences the decision-making process of voters. Theories of ballot position have suggested, variously, that candidates benefit from being placed first on the ballot, due to a 'primacy effect', or last on the ballot, due to a 'recency effect' (Koppell and Steen, 2004). Party identification has various aspects as for it influence the voters to support minor parties and independent candidates, knowing that their preferences may be used to decide the winner. Thus, votes for minor

The Drama Of The Love Triangle In Literature Essay - 1

The Drama Of The Love Triangle In Literature - Essay Example The door goes unanswered after they rang the doorbell for several times, but as they were about to leave, they heard footsteps from the inside of the house. The door opened and there stood Liz wearing her chequered black and white pajama and a cheeky smile, which was so unusual for her. After exchanging pleasantries, they entered the house, and this time Kelvin’s attempt to hold Linda’s hand was not rejected. They walked hand in hand up to the living room and from the look on Liz’s face, the gesture was not welcome. Kelvin having known Liz for a long time let off Linda’s hand. Liz rushed to the kitchen to fetch a drink for them and Kelvin could not help staring at the rich bosom that Liz displayed when she was rising from her seat to go to the kitchen. When he realized he was being watched, he tried to look the other way, but Linda had already noticed and she mumbled something that was not coherent. Liz returned with a bottle of grape juice, which they proceeded to take as they chatted over general things. When it was time to leave, Kelvin explained to Liz their reason for coming and signaled Linda to give Liz the story as she had narrated to him before they left college premises earlier in the day. Linda gave her side of the story as she had given it to Kelvin, although this time she seemed more emotional, which at one point moved Liz to tears. Kelvin, who was used to seeing women cry, started to get irritated when he saw the discussion was getting emotional, so he excused himself to the washroom. After leaving, the two women looked at each other with te ary eyes, and a sense of connection between them attracted them to each other; however, to Linda there was something about Liz that made her suspicious, but since her newfound friend Kelvin had told her that she is a God fearing person, she had no reason to worry.