Media literacy Essay Example | Topics and Well Written Essays - 2000 words

Media literacy - Essay Example Following several clashes with swords in series of fierce mortal combats, the duo, Jack and Will attempt to recapture the Black Pearl Ship, relinquish a fortune in forbidden treasure and save the British navy thereby lifting the curse of the pirates, (Solway, 2008). Redbank (2007) affirms that the film’s complexity was achieved following a number of production technicalities. With numerous shootings, the first one being on October 9, 2002 in which Jack Sparrow steals the interceptor, the production team constantly changed the script to achieve their primary objective; a pirate movie with comical characters and a comical storyline with violence and politics incorporated. Trimble (2007) further documents that the film’s computer generated forms of the cursed crewmembers are relatively convincing, a feat achieved by the visual effect integrated by the production team. According to Wiratmoko (2009), the film’s production unit uses a series of filmic conventions and mythological images of characters like the masculine pirate Jack Sparrow to achieve the film’s objectives. Supplementary characters also supports the main character for example, Elizabeth Swan asks ‘Whose side is Jack on?’ to depict the ambiguity in Jack’s loyalty. Will replies, ‘at the moment?’ thereby depicting Jack’s unstable, contingent, ever changing and heterogeneous character, (Solway, 2008). Trimble (2007) however reveals that, a deeper analysis of Jack’s character reveals a strange aspect of piratical freedom and liberty from political manipulation. Comparative to the life on port Toruga, the society in Port Royal is too structured, lacking in freedom with all inhabitants obeying the preset political standards. Trimble (2007) notes that, the movie manages to bring out the free lifestyle which majority of civilized individuals seeks, a life in which individuals are allowed wild random adventures. According to Wiratmoko

Review paper for optical-Ct gel-dosimetry Article

Review paper for optical-Ct gel-dosimetry - Article Example This new system incorporates the use of both Optical Computer Tomography (CT) Scanning and Gel- Dosimetry which as shall be shown do deliver dose maps with high degrees of resolution, precision and accuracy. 2. Introduction One of the key elements in the world is the aspect of radiation treatment. This has come in handy in the fight against some of the world’s deadliest ailments which the scientific world has always grappled with to fix. A major part of radiation treatment is radiation dosimetry which has had an increased need for a system that has a high degree of accuracy, precision and efficiency in the measuring of dose and in full 3D and high resolution (INTERNATIONAL CONFERENCE ON 3D RADIATION DOSIMETRY, & OLDHAM, M 2010). A lot of work has gone into the traditional systems like the Fricke dosimetry and this has had a tremendous result which is manifested by the effectiveness of Gel-dosimetry. A further development has seen the incorporation of Optical Computer Tomograph y (CT) Scanning into the system of Gel-dosimetry and this complementary system has been observed to have a high degree of accuracy, precision and efficiency. The main objective of this paper is to manifest the authenticity of this statement. In an effort to prove the effectiveness of the newly developed system, an experimental setup was put in place which has delivered results that have received thumbs up from the scientific world. The setup makes use of some 2-dimensional images from defined planes in a gel-dosimeter that is well constructed from a perfect design. Moreover, the performance of Optical Computer Tomography (CT) Scanning is compared with that of a MR scanning with focus being on accuracy and sensitivity of imaging, calibration, resolution and noise in the images of dosimetry. Work has been done to eliminate the sources of geometric distortion and optical artifacts in optical Computer Tomography Scanning. The new design has mechanisms to compensate for refraction, refle ction, signal drift, water-bath imperfections amongst other factors that cause incorrect reconstructions of coefficients of absolute attenuation. It is also the objective of this paper to show that indeed for phantoms which are used in the validation of optical CT scanners used together with the polymerizing gel dosimeters that are radiation induced, stable gel materials are needed. Phantoms on which light dyes are added are the basis of the simulation used as gel dosimeters. More accurate simulations are done with the use of phantoms with light scattering suspensions of colloidal mixed with the gal. 3. Body An experimental setup to prove the effectiveness of the newly developed system involved filling up three identical flasks with 300cc MGS Research BANG3â„ ¢ gel. The flasks had their heads stopped with a threaded screw allowing vertical mounting of the flask into the desired optical scanner as well as head phantom. One of the flasks was used in the study of a complex radio sur gical delivery as a dosimeter while the other two were used to examine calibration issues of gel. The two gel-flasks of calibration were put in a birth of water upright and 6MV beams of radiosurgery used to irradiate them shooting through their flat bases vertically upward. The beams gave doses of 1.5, 0.75, and 0.25 Gy into the first flask and in the second one 1.25, 1.0 and 0.5 Gy. Before the end of 48 hours, these flasks were scanned using both imaging modalities. Data on calibration was gotten by taking the