Friday, September 6, 2019

Greek Art in Ancient Greece and Faraway Lands Essay Example for Free

Greek Art in Ancient Greece and Faraway Lands Essay The classical period of Greece (490 – 323 B. C. ) saw the artists perfecting their style. Following Alexander’s conquests, ancient Greece entered the Hellenistic period (323 – 31 B. C. ) (â€Å"Timeline of Ancient Greece†). Of course, Alexander the Great was not the only god of the ancient Greek civilization. Ancient Greeks worshipped plenty of gods that were believed to have appeared to them in human form with extraordinary strength and beauty (â€Å"Culture†). Professor Harris describes Euhemerus as the philosopher responsible for presenting Greek myths as simple stories to his readers. Euhemerus’ interpretation of Greek mythology was considered radical in his times. It was he who wrote that Greek gods and goddesses were human beings to begin with. Because of their extraordinary feats or the cultural and/or social value that they added to life in ancient Greece, their ordinary humanity was turned into godhood in the minds of ancient Greeks (Harris). Thus, ancient Greek gods and goddesses were portrayed in painted scenes on stone, vases, and also with bronze and terracotta sculptures for the sake of remembrance. Although many of the ancient Greek temples honored multiple gods and goddesses, certain places showed greater reverence to a sole deity or a pair of gods, e. g. Olympia’s Zeus, and Eleusis’ Demeter and Persephone (â€Å"Culture†). For reasons described above, the ancient Greeks downplayed the divine aspects of their gods by giving them a typically human form, as the example of the Torso of Apollo reveals (See Appendix I). Made in 2nd century AD, the Torso of Apollo of marble shows young Apollo, â€Å"the Greek god of light, music, archery, healing, atonement, prophecy, and flocks and herds† (â€Å"Torso of Apollo†). The figure was popular with both Greeks and ancient Romans. It is an unclothed manifestation of perfection, splendor and courage with Apollo wearing a belt over one of his shoulders to which a case for holding arrows was fastened at his back (â€Å"Torso of Apollo†). By showing the god as distinctly human, the artist inspires into viewers the spirit to take Apollo for a courageous model and turn into heroes themselves. After all, Apollo was not only a gentle lover of the arts but also domineering to the extent that he was cruel to those who challenged his supremacy among ordinary mortals (Ingfei, 2002, p. 9; â€Å"Apollo†). What is more, he was intelligent and handsome enough to be taken as a model by the ancient Greeks. With the sun as his special symbol, Apollo did not only show physical courage but was also a supporter of intellectual pursuits (Leadbetter, 2004; Regula, 2009). He was known as the god of poetry, medicine, and intellectually enquiry to boot (Leadbetter). In other words, he was next to perfect. Athena Parthenos, too, was considered immaculate in ancient Greece. The Parthenon is a classical temple dedicated to the woman, considered the goddess of wisdom (See Appendix II). The temple was built between 447 – 432 B. C. on the Acropolis, which is in the capital city of ancient Greece, Athens. It has survived despite severe damage over the centuries (â€Å"Art,† 2008). Perikles, the famous politician of Athens, had championed the construction of the Parthenon (â€Å"The Parthenon†). Some of the architectural features of the temple have been described thus: †¦[R]ectangular floor plan with a series of low steps on every side, and a colonnade (8 x 17) of Doric columns extending around the periphery of the entire structure. Each entrance has an additional six columns in front of it. The larger of the two interior rooms, the naos, housed the cult statue. The smaller room (the opisthodomos) was used as a treasury. (â€Å"The Parthenon†) The temple was constructed with marble, and mainly represented the Doric order with features of the Ionic order incorporated in its sculptural program (Kerr, 1995). The Doric order gave Parthenon its series of ninety two metopes (with panels of sculptured reliefs depicting law and order and struggle); and triglyphs on its entablature. Additionally, the Doric order made the temple a peripteral, simple-looking structure with short and thick columns (â€Å"The Parthenon†). The â€Å"continuous sculpted frieze† of the Parthenon represents the Ionic order, however (â€Å"The Parthenon†). There are four tall and slim columns of the temple, too, that represent this architectural order which happens to support the opisthodomos’ roof at the Parthenon. The capitals or the columns’ tops that are built using the Ionic order have volutes, which are the names of the curlicues special to this order (â€Å"The Parthenon†). Above the metopes and triglyphs of the temple lie the pedimental sculptures, one of which shows the birth of Zeus – yet another god for the ancient Greeks (â€Å"The Parthenon†). The frieze of the temple, running â€Å"around the upper edge of the temple wall† and inside from the metopes and the triglyphs shows day to day life in ancient Greece, the rituals of the Greeks, processions, musicians, gods and goddesses, and much more (â€Å"The Parthenon†). Indeed, the place of the frieze in the sculptural program of the temple is unique, seeing as it does not only portray real life and beliefs of the ancient Greeks, but also gives the Parthenon a central place in the life of Athens. The temple was, after all, a place where religious festivals as well as sacrifices were held. Moreover, this temple gave Athena Parthenos a special place to stay for the protection and welfare of the Athenians (â€Å"The Parthenon: Religion, Art, and Politics†). Whether or not the ancient Greeks would consider it Athena Parthenos’ blessing that took ancient Greek art styles to faraway lands, the fact is that even the ancient art of the Nabataeans and the Arabs experienced the influence of Greek artists. Vries Osinga (2005) state that â€Å"[t]he Nabataeans at their height spread as far north as Damascus, to the coast of the Mediterranean at Gaza in the east and to Madain Salih in the south. † But, the Nabataean kingdom came under Roman rule in the year 106 A. D. It became an Arabian province at the time (Vries Osinga). The Nabataeans were caravan drivers on a large scale. Roman traders visited Petra even before the Nabataean kingdom was taken over by the Romans. These traders came to conclude transportation agreements with the Nabataeans. The latter traveled around the world with merchandise – â€Å"between the Red Sea and the Nile, and sometimes as far away as the Delta† (Sartre, Porter, Rawlings, 2005, p. 268). Unsurprisingly, therefore, their temples expose a variety of influences on the hearts and minds of the Nabataeans (Vries Osinga). Vries Osinga write: The many structures are so diverse that it is difficult to categorize them, at least without oversimplifying or overlooking what may be important details. Philip Hammond, who excavated the Temple of the Winged Lions, concludes that it might be more faithful to the diversity of the temples to see them not as derivatives of Iranian temples, Roman temples or other, but to recognize the borrowing of constructional and decorative technique and to concentrate on why each was unique. (Vries Oringa) Sartre, Porter Rawlings write that Nabataeans were so influenced by Greek art – following the Roman invasion – that they spread that influence in many parts of Arabia. Nude heroes of the Greeks have been found in Arabia and believed to have been conveyed there by the Nabataeans (Sartre, Porter Rawlings, p. 269). However, Vries Oringa have uncovered Egyptian influence in the temples of Nabataeans to boot. Describing one of the most significant temples left by the Nabataeans, the authors state: [T]he Wadi Rum temple took its layout from Egyptian models, specifically the Egyptian Temple Dayr Chelouit. The only reference to the Roman world would be columns of the Wadi Rum Temple. Dharih might also be kin to the Egyptian Temple of Coptos, while the Qasr al-Bint and the Temple of the Winged Lions find construction parallels there also (Vries Oringa). Then again, Greek and/or Roman influence seems to be most profound. Although temple plans of the Nabataeans do not appear typically Roman, decoration outside of the temples may be recognized as distinctly Roman and/or Hellenistic. As an example, the external decoration of Khasneh makes it appear as though it was built in Alexandria (Vries Oringa). Even so, Vries Oringa believe that the Nabataeans did not simply copy the designs that were handed down to them by Romans. Instead, they took influence in their stride, sometimes appropriating â€Å"the general structure,† but modifying and adapting it as time went on (Vries Oringa). In other words, they were open to influence, but also believed in maintaining their local traditions. Taylor (2001) agrees with this view. In her book, Petra and the Lost Kingdom of the Nabataeans, she explains that the Nabataeans did not make copies as slaves would. Rather, Greek ideas were amazingly transformed by the Nabataeans into works of art keeping â€Å"a distinctively Nabataean flavor† (Taylor, p. 92). No wonder, Petra remains as an incomparable feast for the eyes for all lovers of art. Vries Oringa write that the art of Nabataeans, in particular the sculptures they made, also changed from era to era; that is, even before the Romans came to rule the Nabataean kingdom, the Nabataeans went on altering their artistic style (Vries Oringa). Perhaps their visits to foreign lands brought such changes to the art of the kingdom. But, once the Romans had arrived on the scene, the Nabataeans did not only borrow the artistic styles of the Greeks but also others’. The sculptures of deities in Tannur, for example, appear both Hellenistic and Oriental. The Nabataeans also seem to have been influenced by the Syrian artistic style, as revealed through sculptures at both Dharih and Tannur (Vries Oringa). Although Hellenistic artistic style â€Å"of classical proportions† is most often cited as an influence on Nabataean art, there were plenty of sculptures made by the Nabataeans that did not appear Greek at all even though they were made while the Nabataeans were living under Roman rule (Vries Oringa). Vries Oringa cite â€Å"the simple standing block† as an example of such artwork. The fact that the Nabataeans maintained their local flavor in their artistic style shows that these people did not wholly lose their cultural identity at the time. Even the Romans may have delighted in the diversity revealed through Nabataean art, simply because the Nabataeans mingled with many peoples at the time. What is more, the adaptation of Greek art to new cultures must have been viewed as a triumph of ancient Greek artistic styles. After all, ancient Greek art continues to be celebrated around the world to this day. References Apollo. Retrieved Feb 27, 2009, from http://felc. gdufs. edu. cn/jth/myth/Greek%20Online/5Apollo. htm. Art. (2008). Ancient Greece. Retrieved Feb 27, 2009, from http://www. ancientgreece. com/s/Art/. Culture. Retrieved Feb 27, 2009, from http://www. crystalinks. com/greekculture. html. Harris, W. Euhemerus. Retrieved Feb 27, 2009, from http://community. middlebury. edu/~harris/SubIndex/greekmyth. html. Ingfei, C. (2002, Aug 2). The Sun also Heals; Some believe. International Herald Tribune. Kerr, M. (1995, Oct 23). The Sole Witness: The Periclean Parthenon. Retrieved Feb 27, 2009, from http://people. reed. edu/~mkerr/papers/Parth95. html. Leadbetter, R. (2004, Jan 31). Apollo. Encyclopedia Mythica. Retrieved Feb 27, 2009, from http://www. pantheon. org/articles/a/apollo. html. Sartre, M. , Porter, C. , Rawlings, E. (2005). The Middle East under Rome. Cambridge, MA: Harvard University Press. Taylor, J. (2001). Petra and the Lost Kingdom of the Nabataeans. London: I. B. Tauris. Timeline of Ancient Greece. Retrieved Feb 27, 2009, from http://www. aspasiaproject. com/timeline. htm. The Parthenon. Retrieved Feb 27, 2009, from http://academic. reed. edu/humanities/110Tech/Parthenon. html. The Parthenon: Religion, Art, and Politics. Retrieved Feb 27, 2009, from http://employees. oneonta. edu/farberas/arth/ARTH200/politics/parthenon. html. Torso of Apollo. (2000). The Detroit Institute of Arts. Retrieved Feb 27, 2009, from http://www. cartage. org. lb/en/themes/arts/scultpureplastic/SculptureHistory/GloriousScul

Thursday, September 5, 2019

Beowulf Is A Christian Hero Religion Essay

Beowulf Is A Christian Hero Religion Essay Have you ever had the privilege of reading George Orwells novel known as Animal Farm? If so, you are probably well aware that it is a book that reflects the government and leadership of the days in which it was written. Many people believe that Beowulf is similar to Animal Farm in that it also reflects a part of the culture of its day. But instead of reflecting government, like Animal Farm, Beowulf reflects the changes in the religious culture of England. While describing the background of Beowulf, Burton Raffel points out, When Beowulf was composed, England was changing from a pagan to a Christian culture. Therefore, Beowulf signifies the Christian culture that is overcoming and replacing the pagan culture, which is signified by Grendel, his mother, and the dragon. Beowulf, the poem, may have been written by a heathen (which is a debate for another paper) but Beowulf the character was a Christian. Raffels point can be taken a step further. Not only did Beowulf symbolize the Christian culture, but he also symbolized Christ himself. Along with that comes the idea that Grendel, his mother, and the dragon not only symbolize the pagan culture but also Satan, the devil, or simply evil. The most obvious act of displaying Christ seen in Beowulf is when he sacrificed his own life to kill the dragon and ensure the safety of his people. The next example is not quite as obvious as the first but is still reasonable. Throughout the entire poem, Grendel and his mom are both referred to as the devil or a demon several times. So Hrothgars men lived happy in his hall/ Till the monster stirred, that demon, that fiend, Grendelà ¢Ã¢â€š ¬Ã‚ ¦ (Raffel 39). Later on, after Grendel attacked and killed some soldiers in Herot, the name calling continues: In Herot, a mighty prince mourning/ The fate of his lost friends and companions,/ Knowing by its tracks that some demon had torn/ His followers apart. (Raffel 40). Later on when Hrothgar tells Beowulf of what his people have seen, they describe Grendel and his mother in the following way: And theyve said to my wise men that, as well as they could see,/ One of the devils was a female creature. (Raffel 49). Sometimes the author is not as flagrant in his or her references to Grendel and his mom as the devil or demons. Sometimes the author simply hints at the idea. Speaking of Grendel he says, living down in the darkness, where the darkness is referring to hell (Raffel 39). The most obvious hint at the idea is when Grendel will not touch Hrothgars throne because it was protected by God: Though he lived/ In Herot, when the night hid him, he never/ Dared to touch King Hrothgars glorious/ Throne, protected by God God,/ Whose love Grendel could not know. (Raffel 41). This point can be further understood after reading James 2:19. Grendel knows of God yet lives in fear of him. The last hint the author gives is when he calls Grendels mothers cave the God-cursed roof to once again have the place where they live resemble Hell (Heaney 211). Considering the fact that Beowulf defeated these demons or devils pushes the idea even further that he is a Christ figure throughout the poem. Now thinking realistically, how could a story about a pagan who resembles Christ last for several centuries if never written down? It simply could not have. Realistically, for an oral story to last so long, the Christ figure must have intentionally been depicted by a Christ follower or else the story would have basically no meaning or value to anyone at all and therefore be forgotten. Throughout the text, God, as well as many Biblical characters and events, are mentioned and recognized and even prayed to by Beowulf himself. In the very beginning, literally the seventh line of the poem, the Creation is spoken of: The Almighty making the earth, shaping/ These beautiful plains marked off by oceans,/ Then proudly setting the sun and moon/ To glow across the land and light it (Raffel 39). Not too long after that, Cain and Abel are mentioned: Conceived by a pair of those monsters born/ Of Cain, murderous creatures banished/ By God, punished forever for the crime/ Of Abels death. (Raffel 39-40). The most significant segment is when Beowulf prays to God and thanks him for his loot or treasure: For this, this gold, these jewels, I thank our Father in Heaven, Ruler of the Earthà ¢Ã¢â€š ¬Ã‚ ¦ (Raffel 59). This shows us not only that Beowulf acknowledged Gods mere existence but that he also considered Him the Ruler of the Earth and knew that He was the one who brought him al l of his wealth. Yes, it is true that even Satan himself believes in Gods existence and that He is the Ruler of the Earth. In James 2:19 the Bible states, You believe that there is one God. Good! Even the demons believe that and shudder. But Beowulfs belief in and of God goes further and deeper than the demons belief. This is backed up later on when Beowulfs eternity in heaven is mentioned. Please do not take my word and my translation of the poem alone. This is not just a personal opinion. Other literature experts have said the exact same thing that I am. Larry D. Benson suggested that the pagan material was added to Beowulf in order to arouse sympathy (Ogilvy 169). An anonymous student wrote a short paper on the matter. Speaking of the poem Beowulf, he said, Although showing signs of being a pagan story, Beowulf is primarily a Christian story. The argument for Beowulf as a Christian poem goes hand in hand with my first point that it signifies the religious and cultural changes that were taking place in its time. Now here are a couple of the top arguments that try to say Beowulf is not a Christian. Arguably the most popular argument is that Beowulf does not believe in God but instead believes in fate. Someone that wrote a paper on Beowulf, who is known as Ultisch said, Many times throughout Beowulf, the author will reference fate, while speaking of Godà ¢Ã¢â€š ¬Ã‚ ¦ To reword, they are saying that, yes, Beowulf does mention fate, but when he does, he is referring to Gods ultimate sovereignty and control and not something of pure chance or luck. Some people also like to argue that Beowulfs death bed wish to see the treasures he just earned, instead of his family or something of more long term value, is proof that he was not a Christian. As he dies, Beowulf asks Wiglaf to bring him the treasure that the dragon was guarding. (Raffel 58). Now think reasonably. How can this logically prove that he was not a Christian? He is simply being reasonable and realistic. He knows he does not have enough t ime left and that he can not see his family. In their book, J.D.A Ogilvy and Donald C. Baker say, Beowulf is dying why not see the treasure? Even if this was not the case and Beowulf was being greedy, it still would not prove anything. Is a mans greed proof that he is an unbeliever? The obvious answer is no. In Roman 3:23 the Bible says, For all have sinned and fall short of the Glory of God. Just because a man sinned does not mean he is not a Christian. In conclusion, Beowulf was a Christian man and did go to heaven in the end. Yes, there is more proof for that too. At the end of the poem, Beowulfs death is described in this way: His soul left his flesh, flew to glory. (Raffel 59). The word glory here quite obviously means heaven. Also, before he fights the dragon, Beowulf says, Ive never known fear, (Raffel 54) saying that he is not afraid to die. This shows us that he knows his eternity is secure in the Lord. This proves that Beowulfs belief in and of God goes further than that of the demons and that he truly is a child of God.

Wednesday, September 4, 2019

Critical Elements of User Experience Design

Critical Elements of User Experience Design Prof. Michael Weyrich, Tobias Jung, Zeller Christian Zange Hossain Mohammad Faysal Ebna Hossain Critical Elements of User Experience Design as a Success Factor for Virtual Working Spaces in the Digital Enterprise Basis    Thesis No: Type: Class of Process Model: Student: Supervisor: Begin: End: 2843 MT Model for Conceptional Projects Hossain Jg/Ze 20.09.2016 20.03.2017 Document: Version: Author: Date: Status: Basis 1.0 Hossain 16.03.17 submitted File Name: Pages: Print Date: Template: co-basis-v10 31 co-basis.dotm (Program of study: INFOTECH) Document Version Management Version Author QA Date Status Changes 0.1 Hossain Jg 11.11.2016 in progress Creation 1.0 Hossain Jg 22.02.2017 submitted Initial Submission 1.1 Introduction An Enterprise Network is the backbone of communications within an enterprise or organization that that enables the employees and stakeholders communicate with each other in an efficient and effective manner. A digital enterprise workplace is where technology, processes, people, and the Enterprise organization converge to enhance agility, engagement, and productivity. It is a virtual platform where employees and stakeholders can get the technology tools they require to do their tasks effortlessly. [UBMC15] .Here we are talking about the underlying professional and personal network. It enhances internal and external enterprise communication superintendence. The interactive characteristics on the Internet, Wiki and blogosphere have become essential nowadays. With two-thirds of the worlds Internet population are visiting a social networking or blogging site, and the amount of time spent on these platforms are increasing at more than three times the rate of overall Internet growth [UNiel09]. The Enterprise network has also been changing over past years. Social technologies have been added to the Enterprise network to increase productivity to and communication. Social technologies have apprehended the thought of consumers, business leaders, and political leaders. Millions of people have adopted new practices: conveying social interactions online, developing connections, and building and sharing content. Social technologies can be described as digital technologies utilized by people to communicate socially and collectively to build, improve, and exchange contents. Social technologies possess three major characteristics: Figure 1: Characteristics of Social Technologies [McK12] People can communicate socially (e.g., chat, share personal news, send greetings), social technologies enable anybody inside a community or organization to create, add, or modify content and communications. This involves combining or deleting content such as a document or a link, contributing to content supplemented by others, endorsing (e.g., liking a piece of content), or executing an action that an individual knows will be shared. The way of knowledge sharing and communication has been dramatically changed or improved as a side effect of using social technologies. Social technologies can perform a central role in how information is gathered, sourced, analyzed, and disseminated among interested person. 1.2 Applications incorporating Social Technologies and digital workplace    Social technologies incorporate a wide range of applications for both Customers and Enterprises. The figure below has been taken from the report published by McKinsey Global Institute (MGI) that includes applications used for social technologies: Figure 2: Wide range of applications for social technologies [McK12] Social network: A Social structure comprised of a collection of social actors (for example organizations or individuals), a collection of dyadic ties, and other social interactions among social actors are known as the Social Network. This perspective provides an assemblage of methods for analyzing the structure of all social entities. [Was94] Blogs/Microblogs: A blog is a conversation or informational web platform published on the World Wide Web comprising of discrete and usually informal diary-style text entries (called posts). Posts are usually arranged in reverse sequential order, so that the very recent post appears first, at the top of the web page. [UBlog17]. Microblogging is a service that facilitates its users to send and announce small notes, normally just text and typically react to queries. The blog is generally a personal reflection. Rating and reviews: Rating and review provide a way that enables users or readers to rank the content socially. It also allows users to reveal their feelings about the content (usually through emoticons). Social commerce: Social commerce is basically a subset of electronic commerce. It involves online social   media that promotes social interaction, and user participation to support online purchasing and selling of goods and services.[USoCo13] Wiki: A wiki is a web-based platform that implements collaborative modification of its content and composition right away from the web browser. In a conventional wiki, the words are written using a simplified markup language (known as wiki markup) and usually edited with the aid of a rich-text editor. [EnBr08]. The wiki the jointly edited content where approved users can jointly edit and publish the content. Discussion Forum: An Internet forum is an online discussion platform where users can hold discussions in the form of posted messages. The posted messages are usually longer than one line of text and are often archived. Additionally, the forum set-up in such a way that a posted message may need to be validated by a moderator before it becomes published. [UWiFo08]. The core idea of the Forum is the exchange of ideas or topics. Shared workspaces: The shared workspace is an interrelated ecosystem in which all users in separated areas can reach and interact with each other. The ecosystem maintained by electronic communications which facilitate users to overcome location and time differentials. The environment is facilitated by a shared rational paradigm, general information, and a common perception by all of the members despite physical position. Crowdsourcing: Crowdsourcing is a specific sourcing model in which individuals or organizations use contributions from Internet users to obtain needed services or ideas. Crowdsourcing was coined in 2005 as a portmanteau of crowd and outsourcing. [Mat11] Social gaming: A social network game is a type of online game that is played through social networks.[Jarv09] They typically feature multiplayer and asynchronous gameplay mechanics. Social network games are most often implemented as browser games, but can also be implemented on other platforms such as mobile devices.[Kim11] Media and file sharing: Media and files sharing among the members have a significant impact on knowledge and information sharing. It provides flexibility and alternative means to work collaboratively with the members. 2.1 Introduction User experience design is the method of improving user satisfaction with a product by enhancing the usability, accessibility, and pleasure rendered in the interaction with the product. This section begins with regular usability evaluation and why it has become progressively critical to focus on the user experience (UX). 2.2 What is Usability Usability is a quality attribute that determines how usable is a system or product by its user. The term Usability also points to methods for enhancing ease-of-use throughout the design or development process. Nielsen Norman group mentioned five quality components that defines the term Usability: [UNiel12] Learnability: How easy is it for users to accomplish basic tasks the first time they encounter the design? Efficiency: Once users have learned the design, how quickly can they perform tasks? Memorability: When users return to the design after a period of not using it, how easily can they reestablish proficiency? Errors: How many errors do users make, how severe are these errors, and how easily can they recover from the errors? Satisfaction: How pleasant is it to use the design? In brief, Usability determines how easy pleasant a product/system to use. 2.3 Importance of Usability It is very much crucial to make a system where users should not have to think too hard while they are using the system. The user should not have to refer to help sections, and they should not be constrained to feel stupid. By observing the user, finding the usability issues and resolving them in an appropriate manner these situations can be avoided. System developers usually forget that they are not typical users. There may be aspects of the system that seem apparent to the developer that might, in fact, be entirely confusing to the users. It is therefore essential to take a step back once in a while and make sure that the users are not left behind. Usability Testing is an indispensable aspect of the User-Centred method that establishes the user, at the heart of the development process rather than the system. Embracing such an approach pushes that the user should be foremost in the design determinations. According to the International Standards Organization (ISO 9241-11: Guidance on Usability) Usability is the extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency and satisfaction in a specified context of use. These three factors are very much important to attain business goals. An effective website An efficient website A satisfied user allows customers (users) to achieve their goals provides answers quickly achieves their goal has a high conversion rate follows a logical sequence enjoys their experience meets business objectives doesnt waste resources tells others delivers a positive brand image requires less content management time comes back again Table 1: Why Usability parameters are important [URed11] Usability testing lets the design and development teams recognize problems before roll out of the system. The earlier flows are identified and fixed; the less costly the fixes will be concerning both resource time and possible influence to the schedule.   During a usability test: Investigate the activities of the participants to see whether it meets usability objectives Identify how satisfied users are with the system or product Discover if users can accomplish specified tasks as intended Experience how long it takes to accomplish specified tasks Determine adjustments needed to enhance user performance and satisfaction 2.4 Usability Evaluation Conventionally evaluating the usability of a product does not come into play until the system development is completed or nearly completed. Once completed, users would be requested to accomplish certain tasks on the system. Their performance would then be measured, often using the five usability attributes of Nielsen: Learnability, Efficiency, Memorability, Errors and Satisfaction.[UNiel12] This way of usability testing does not include users until very late in the project and concentrates on the system rather than how the user experiences the System. Racing toward launch without looking back might have seemed like a good idea back when the launch date was set, but the result is likely to be a product that meets all the technical requirements for the project but does not work for your users. Even worse, by tackling user experience evaluation on at the end, you might end up launching a product that you know is broken but have no opportunity (or money left) to fix. [Garret10] This means of usability evaluation is often named user acceptance testing. The term accepting is important here, symbolizing that the focus lies on whether the user accepts the system, rather than whether he/she can use the system as intended 2.5 User Experience Focus Technological improvements in ubiquitous computing have created an opportunity for Human-Computer Interaction (HCI) to be a massive part of our day-to-day life. This has effected a shift from traditional usability engineering to so-called User Experience, where the emotions and motivations of the end-user are provided a principal role than traditional usability metrics such as efficiency and effectiveness. There have been studies about defining User Experience amongst UX professionals that have demonstrated inconclusive [Law09] and these are within the field of Human-Computer Interaction. One could dispute that the principles following UX could be applied to any production process. The nearest we can get to a definition is addressed in the ISO 9241-210 standard on the Ergonomics of Human System Interaction Part 210: Human-Centred Design for interactive systems (ISO, 2008): A persons perceptions and responses that result from the use or anticipated use of a product, system or service Above statement highlights the experience the user has while using or anticipates using a particular product. The notion of anticipated use grants the idea that UX can play a crucial role in the early development stages of system development mentioning that thinking UX before an actual working system is ready can produce invaluable input. User experience specialists strive to make the system User-Centered. It indicates that while the development of the system the user is constantly the principal focus point and drives the evolution process. According to the ISO standard, six postulates assure the product is User-Centered:[UUCD17] 1. The design is based upon an explicit understanding of users, tasks and environments. 2. Users are involved throughout design and development. 3. The design is driven and refined by user-centered evaluation. 4. The process is iterative. 5. The design addresses the whole user experience. 6. The design team includes multidisciplinary skills and perspectives. Second Principle (Users are involved throughout design and development) entails that UX teams should include users in all design stages: not just by operating a focus group at the beginning of design or by administering a survey at the end of the project. 3.1 Introduction Usability testing involves watching representative users working with the system so that development team can make improvements based on what participants do with the system. Usability testing provides invaluable feedback about how the users behave with the system. Knowing how users behave helps to create a much more suitable Platform or application. Rather than just guessing about what people might like on these, it is possible to see their reactions first hand, and then make sure that the system contains just the right features. Learning about issues early in the process saves development time and money. Rather than spending time developing the wrong thing, a quick usability test will tell the developer whether they are on the right track or not. Getting the data directly from the users is a much better way of doing design work than arguing about features among the team. In fact, usability testing is a great way of stopping arguments. Rather than spending time on fighting over whose idea is best, put the concepts in front of real users to see how well they can work with them. There is nothing quite like real user feedback that helps to determine the best way forward. The thing that separates usability testing from many other methods is that with usability testing, it is possible to see real behaviors, what people do rather than just asking what people think. Often watching people do something is the only way to really understand where the issues lie and how to fix the problems you see. Ease of use doesnt originate from wishful thinking. It comes from conveying methodical usability engineering activities throughout the project lifecycle. This is a real effort and sacrifices real money, though not as much as some people worry. It is possible to conduct simple forms of user testing in a few days and obtain vast insights into both user behavior and recommended design enhancements. 3.2 Usability Costs To estimate the total cost of usability (as opposed to the price of a single test), Nielsen Norman Group collected data from 863 design projects that incorporated Usability Testing. Depending on how they have calculated it, usability costs were within 8% and 13% of the projects budget. Based on these findings from other surveys, they have concluded that current best practices call for dedicating about 10% of a projects budget to usability. [UNiel03] In reality, the cost of usability doesnt extend linearly with project size, since many usability testing cost about the same, notwithstanding of how big the project is. A project thats ten times larger, for example, usually requires only four times more usability spending. 3.3 Reduce Development Cost Accurate planning at the start of a Systems design process will save time, money and effort in the long run. A study by Smith Reinersten found that the critical system-design decisions made during the first 10% of a products design process can determine 90% of the products cost and performance. This is an outstanding illustration of how a little investment at an initial stage can have a tremendous positive impact on the final product. [UWilson14] The more money will organization invest in usability at an initial design stage the greater will have the end product. A tiny amount of cash spent on usability design and testing will save the organization from costly design fixes or redesigns later in the cycle. 3.4 Reduced Support Costs An enormous gain of financing in usability is diminished support costs. Just put, a System with better usability will reduce potential customer support concerns and eventually reduce customer support costs. An excellent way to enhance the websites usability, while decreasing support costs is by giving online guidance to the users. Another illustration of how financing in usability at the early stage of the design process will save the money at a later stage. A study by Pressman found that 80% of costs during a softwares lifecycle come from the maintenance phase. The study also found that greatest part of these costs rises out of unmet or unforeseen user requirements. [UWilson14] Figure 3: Reduced call and support costs minimizes maintenance cost Spending in usability helps to resolve these issues during the design stage, where they can be dispensed with at a much lower price. All redundant second that the support staff uses responding to a customer support issue (time when paying for their wages) is the cost of poor usability investment. 3.5 Increased Sales Its not a big leap in logic to claim that improved usability for customers will make them more likely to execute a purchase or to extend their purchase volume. A study by Creative Good discovered that giving a better experience for the customers will prolong the quantity of purchasers by 40%. [UWilson14] Another study by UI Engineering observed that by giving sufficient product information to your customers at the right time you can increase sales on your site by up to 225%. [UWilson14] Improved usability makes for satisfied clients who are more likely to purchase, eventually expanding the businesss profits. 3.6 Usability Benefits The Nielsen Norman Group have analyzed data from 42 cases where usability metrics were available for website redesigns. Averaged across the 42 pairs of measures they had found, usability increased by 135% when they omitted five outliers with especially significant usability improvements. (If they include these outliers, the average improvement jumps to 202%.) [UNiel03] The improvement in usability metrics differed depending on the metric, as the following table shows: Table 2: The improvement in usability metrics differed depending on the metric [UNiel03] The current study of Nielsen Norman Group does not incorporate intranet redesign projects. However, based on their studies of intranet design potential, Jakob Nielsen consider that the average improvement in intranet usability metrics is a bit below 100%. [UNiel03] 3.6.1 Co-Creation Certainly, the very common metric of ROI is financial, and a tested-to-breaking-point product, including a user-centric UI, will assure the user experience is a pleasurable one, promoting more exchanges, and, in turn, increased revenue. 3.6.2 Trust If the organization is providing the users a great user experience, the organization will also be strengthening trust in the brand. A user is more reasonably to retain with a website or platform that theyve earlier had a trouble-free experience of, than one thats showed something of a usability nightmare. How many customers are using the system, and how many are yielding to use again, can be tracked via analytics software. 3.6.3 Productivity Profits can also be gained through an increase in productivity of any employee. Systems need rigorous testing to assure the design and UI are helpful to an experience that cuts the time it needs to accomplish a task, enabling the employee to gain more. 4.1 Introduction The scope of this user experience and usability testing of the platform is for the pilot of GIZs enterprise portal which is focused on GIZs communities of practice. For this instance, it is very much important to understand the community business processes and the specific use cases for GIZs communities of practice (CoP). A community is a group of experts / development practitioners that share knowledge on common development topics and challenges as well as work collaboratively on effective, efficient, innovative, sustainable solutions based on their own experiences and expertise. A community is a collection of people with shared values, behaviors and artifacts. 4.2 Communities of practice Communities of practice are groups of people who share a concern or a passion for something they do and learn how to do it better as they interact regularly. [UWen15] Shared domain: It has an identity defined by a shared domain of interest. Website à ¢Ã¢â‚¬ °Ã‚   community. Sense of community: In pursuing their interest in their domain, members engage in joint activities and discussions, help each other, and share information. Shared practice: Members of a community of practice are practitioners. They develop a shared repertoire of resources: experiences, stories, tools, ways of addressing recurring problems-in short a shared practice. This takes time and sustained interaction. Communities of practice have a great impact on organizational value chain and knowledge management including knowledge sharing. The infusing factors based on the effectiveness of the communities on practice has been explained by W.M.H. Oosting in 2009 which has shown below: Figure 4: Influencing elements of the effectiveness of a CoP [Oosting09] The core is the proper connection between purpose, content, content, conversations and connections where the purpose is at the center and everything is linked bi-directionally with it. From the figure we can express wrathfully that setting up the purpose has a great impact on the success of CoP. 4.3 Community Management Framework For the business case of GIZ, we have clustered questions which lead to the Community Management Framework. These clusters lead to the business needs of GIZs Communities. Factor Questions Purpose and incentives What is in for me? What benefits do we hope to get? Strategic relevance of the common topic? Outcomes What useful (preliminary) outcomes do we want to achieve? Stakeholders /actors Who should be a member? What is their social glue/shared practice? Have key roles been defined? Negotiations What ground rules and milestones do we need for internal cooperation and management? Orientation What common vision have we agreed upon? Resources Budget for the community? Are members given enough resources by their business units/organizations? Strategy Strategy for planning and implementation by the community? Growth Plan/concept for increasing the number of members? How to turn new members into returning members? Content and moderation Who is/are the community manager/s? Do they have enough resources (time, opportunities and ability to build bridges) and the necessary status? What content is to be created and edited? What content can members be asked to input?

Essay --

Introduction of Clinical Question In a normal brain neurons in the substantia nigra produce a chemical called dopamine that acts to control motor functions. In a person with Parkinson’s disease, there is insufficient dopamine and motor symptoms such as tremors, rigidity, problems with balance and bradykinesia can occur. According to the National Parkinson Foundation, four to six million people worldwide are estimated to have Parkinson’s Disease. In the United States alone, the incidence is estimated at fifty to sixty thousand new cases diagnosed each year. Additionally, the Center for Disease Control puts complications from Parkinson’s disease as the 14th leading cause of death. While there is no cure, the symptoms can be controlled with medications and surgery. [6] A 2011 German cross sectional study revealed that people with Parkinson’s Disease had poorer oral health. They were found to have more caries, tooth mobility, gingival recession and periodontal pocketing than the control cohort. Additionally, the group with Parkinson’s disease reported less frequent tooth brushing and dental visits, and exhibited reduced salivary flow. [4]. Supporting this, a separate Japanese study showed more untreated caries and deeper periodontal pockets, leading to fewer natural teeth in persons with Parkinson’s Disease [2]. There is a significant population with Parkinson’s Disease, a condition that has been shown to have a negative impact on oral health. Increased caries and periodontal problems can lead to tooth loss and edentulism, a condition treatable with traditional or implant retained overdentures. Patient RM is a male with Parkinson’s disease. He is partially edentulous with six maxillary teeth and two mandibular teeth. ... ...100. [2] Hanaoka A, Kashihara K. Increased frequencies of caries, periodontal disease and tooth loss in patients with Parkinson’s disease. Journal of Clinical Neuroscience. 2009; 16: 1279-1282. [3] Heckmann SM, Heckmann JG, Weber H-P. Clinical outcomes of three Parkinson’s disease patients treated with mandibular implant ovedentures. Clin Oral Impl Res. 2000; 11: 566-571. [4] Muller T, Palluch R, Jackowski J. Caries and periodontal disease in patients with Parkinson’s disease. Spec Care Dentist. 2011; 31(5): 178-181. [5] Packer M, Nikitin V, Coward T, Davis D, Fiske J. The potential benefits of dental implants on the oral health quality of life of people with Parkinson’s disease. Gerodontology. 2009; 26: 11-18. [6] Welcome to Parkinson.org [Internet]. Miami (FL): National Parkinson Foundation; 2014 [cited 2014 Mar 7]. Available from: http://www.parkinson.org/.

Tuesday, September 3, 2019

stealing :: essays research papers

Microsoft Windows Millennium Edition This document provides complementary or late-breaking information to supplement the Microsoft(R) Windows(R) Millennium Edition (Windows Me) documentation. HOW TO USE THIS DOCUMENT To view Display.txt on-screen in Notepad, maximize the Notepad window. To print Display.txt, open it in Notepad or another word processor, and then on the File menu, click Print. -------- CONTENTS -------- WINDOWS UPDATE WINDOWS 95 UPGRADES WINDOWS 95 DRIVERS CONVERTED TO VGA ADAPTER TYPE MONITOR TYPE REFRESH RATES DISPLAY PROBLEMS DYNAMIC COLOR CHANGE ANIMATED CURSORS IRQ CONFLICTS WITH PCI DISPLAY ADAPTERS MULTIPLE DISPLAY SUPPORT =============== WINDOWS UPDATE =============== Microsoft regularly makes updated drivers available on the Internet through Windows Update. Windows Me also includes additional drivers in the Drivers directory on the Windows Me CD. To obtain additional or updated drivers, carry out the following steps: If you have an Internet connection: 1. Click Start, and then click Windows Update. 2. Follow the instructions on your screen. If you do not have an Internet connection: 1. Click Start, and then click Help. 2. In Windows Help, click the Index tab. 3. Type "Download Library", and then press Display. 4. Follow the instructions on your screen. Microsoft updates the Windows Driver Library on the Internet regularly with the newest drivers from third-party manufacturers. Microsoft tests these drivers for compatibility and then makes them available for download. Windows Update makes these drivers available automatically by detecting the hardware on your system and offering you only those drivers that are compatible with your system. =================== WINDOWS 95 UPGRADES =================== Windows Me upgrades all Microsoft-provided drivers from Windows 95 and DirectX releases. Windows Me also upgrades certain third- party Windows 95 drivers that might experience problems running in Windows Me. If your display card or system included display-specific utilities (for example, extra Display properties in Control Panel, refresh rate utilities, or color matching utilities), an upgrade to the provided Windows Me driver may cause the utilities not to work correctly. If Windows Me upgrades your display driver and your display-specific utilities are not working correctly, this is because the existing third-party Windows 95 driver is not compatible with Windows Me. Third-party display drivers and utilities are often very interdependent, so that if you remove one piece, you will break the other. The display drivers included with Windows Me are intended to be generic drivers that provide stable support for standard Windows APIs and features. Because each driver must support a number of different configurations, it is impossible to support every utility with one driver. Some features that formerly were included in third-party utilities have been integrated into Windows. If you still want the extra features

Monday, September 2, 2019

A midsummers night dream Essay

Additionally, The nobles are a mirror image to the Mechanicals. The Mechanicals are completely opposite to the nobles. The nobles speak in Shakespeare’s elegant verse and are very rich and are also educated. Unlike, the mechanicals that do not speak in elegant verse but in proses and are lower class and are not well educated. The forest represents magic, instinct, love and dreams. It is symbolised by the fairies’ use of rhyming verse, and night. The prosaic Mechanicals here in the forest are another mirror image to the supernatural fairies. The Fairies are elegant; and speak in a four beat verse chant. â€Å"So shall all the couples three. Ever true in loving be† However, The Mechanicals are clumsy and earthly and speak in prose. â€Å"I, One snout by name, present a wall. The mechanicals add understanding to the audience through love. In the mist of a supernatural war, the humble Bottom demonstrates something about the blind nature of love through his combination of dignity and foolishness. † Reason and love keep little company together† Bottom adds understanding to the audience’s understanding by this quote. He explains that reason and love have nothing over love Bottom figures this out because he is ordinary, ands proving Theseus wrong. The Mechanicals’ main contribution is humour. This has the effect of diffusing tension. It grounds down the elevating romance of the lovers and the fairies, and adds to the audience’s enjoyment. Shakespeare creates humour through various language techniques. One way in which he does this is by the comic effects of the names of the characters. Bottom name might prefer to a person’s backside or an â€Å"ass† in which his head is turned into the head of an â€Å"ass†(donkey) In the play-within-a-play, flute plays Thisbe. The name Flute refers to a flute instrument, which is to a sour fruit â€Å"citrus†. This reflects his personality as he is bitter, serious and gets annoyed. High, pitched. In the play Flute has to put on a high voice as he plays a woman. Also Quince name refers Also the Mechanicals contribute humour by the misuse of their words. The mechanicals mix up their senses a lot in the play. â€Å"The flowers of odious savours sweet† an oxymoron is used here as Bottom mixes up his senses. The effect on the audience is obviously humour as it is a stupid mistake. As flowers do not smell horrible! The mechanicals also mix up senses† I see a voice†¦. And I can hear my Thisbe’s face† L187-188 [Bottom] Bottom un-deliberately mixes things up again by saying he sees a voice and hears Thisbe’s face. The effect on the audience is humour. The Mechanicals enhance the audience’s understanding of the theme of love and it transforming power. Shakespeare uses humour to show the ugly can be made beautiful though love. ?† What angel wakes me from my flowery bed†¦I pray thee, gentle mortal, sing again† As the audience knows, Bottom cant really sing but the fact that love can change something ugly into something beautiful is what the Mechanicals add to the audience’s understanding of the play. The contrast of the lazy Bottom and the beautiful Titania with her high status, her language and power underlines the transforming power of love and shows how people behave foolishly because of love. Although Bottom is ugly and uneducated he speaks wise words. † Thou art as wise as thou art beautiful† Shows that even though Bottom is ugly and clumsy his wise words about love† Bottom shows the audience that love is unreasonable. The effect on the audience is that love is not about status, beauty or law. Which is what the Athenians believe love is about. Humour is used to explore the idea of drama and the conventions of the theatre in the play-within-the-play when Quince begins his prologue he takes away the drama and the tension from the play. He does by adding a speech before the play by reminding the audience a few things before the play starts † I am to entreat you, request you are desire you to con them† Quince takes away tension in a humorous by telling the audience before hand that the Mechanicals are a little bit rubbish. Throughout the play-within-the-play Bottom dominates the play but misguides his own talent in many ways. Bottom throughout that play tries to dominate but makes silly while humorous mistakes. â€Å"O grim-looked night†¦O†¦O†¦O† Bottom repetition is entertaining as he is trying to make himself look like a good actor, He is trying to create this impression by using â€Å"o† a lot in his sentences. When Shakespeare uses the actors as the setting. Which are the wall and the moon. It shows the contrast of Shakespeare use of imagery to represent the scene, as there were no props and stage settings in those times. Also Flute says his lines all at once as the actors in the Elizabethan times would only know their own lines not the other actors. Which would be very humorous for the audience as the actors would be all jumbled up. The Mechanicals add enjoyment and understanding through the theme of love and through humour. The Mechanicals also contribute humour. And finally the Mechanicals increase the audience’s perceptive of the theme of love and it transforming authority by using Bottom to say something intelligent about love. William Shakespeare uses the Mechanicals in the play for many reasons. Shakespeare uses the mechanicals to add understanding to the audience throughout the play. Also he uses the mechanicals for the audience’s enjoyment. â€Å"A Midsummer’s Night Dream is still popular for performers and audiences today as it is a play with bizarre and magical dreams and magic happenings thought out the play. Finally, because it is a humorous yet a moral play which anybody can learn from.

Sunday, September 1, 2019

Gemstone and Diamond Mining Through the Years

Gemstones have been a symbol of wealth from the ancient times up to the present. These stones with their own characteristic, unique and special properties have always been associated to beauty too. Popular and famous persons throughout history, especially those from the noble family have used gemstone to adorn not only themselves but their dwellings as well. In the United States, mining of these stones has been for recreational activity only for collectors and hobbyists since 1935 (Gemstones Production, USGS). Nevertheless, as the value of gemstones inflated, large scale mining operations have been initiated. In this paper, we would explore the world of gemstones; what truly fits the word gemstone, how are they classified and the methods of mining.GemstonesThe word â€Å"gem† actually came from the Latin word gemma, which means â€Å"bud† (Microsoft Encarta). It is a very fitting name since gems seem to bud out of the earth’s crust like flowers in a garden. Gem o r gemstone means any mineral or organic material that can be used to decorate one’s body, for display or can be considered an object of art due to its unique properties it possesses such as beauty, rarity and durability. Colored and diamond gemstones are subcategories of gemstones. Basically, colored gemstones are all other stones except diamond such as amber, coral and shell (Olson 32.1).On the other hand, natural gemstones are minerals, stones or any organic matter that can be cut, polished, or treated for use as jewelry or other personal ornament (Gemstones Terms, USGS). Gemstones can be further classified as precious or semiprecious gemstones. Precious gemstones have beauty, durability and rarity, while semiprecious gemstones have only one to two of these characteristics (Gemstones Terms, USGS). Diamond, ruby, sapphire, emerald, aquamarine, topaz and opal are classified as precious gemstones while others are treated as semiprecious (Gemstones Terms, USGS). Since gemstones are rare, they are not plentiful and these stones do not form ores like other mining products. They tend to be scattered throughout a large body of rock or can be crystals found on small cavities of rocks (Gemstones Environment, USGS).Gemstones are primarily found from Tennessee, Alabama, Arkansas, North Carolina, Oregon and Arizona (Gemstones Specialist 64). However, most gem diamond reserves are not found in the United States. Diamonds are usually mined from Southern Africa, Russia, and Western Australia (Gemstones Specialist 65). The very first used as jewelry were amber, amethyst, coral, diamond, emerald, garnet, jade, lapis lazuli, pearl, rock crystal, ruby, serpentine and turquoise (Olson 32.1).In the US, the commercial gemstone industry consists of individuals and companies that mine gemstones or harvest shell and pearls, firms that manufacture synthetic gemstones and individuals and companies that cut natural and synthetic gemstones (Olson 32.1). Worldwide, the industry is only composed of two sectors: diamond mining and marketing and the production and sale of colored gemstones (Olson 32.3).Throughout the year, few of the diamonds mined are of gem quality; much of them are of near-gem and industrial in quality. Gem quality diamonds display high standards of excellence in quality and can be sold as jewelry. Clarity of such diamonds is from flawless through to visible inclusions. On the other hand, near-gem quality represents diamonds that fall between gem and industrial quality and thus can be used for either purpose.   Clarity of this set is from visible inclusions to industrial. Lastly, industrial quality diamonds are of low quality and cannot be used as jewelry or adornment. These diamonds are suitable only for industrial use such as dentist’s drills and earthmoving equipment (Mining Diamonds).Diamonds are formed beneath the earth’s surface and required tremendous pressure and temperature. Like diamonds, most gems are crystals forme d by cooling hot gases, solutions, and melts. As the earth’s soil surface weathers and erodes, and rivers forcefully flow through, gemstones may be exposed and be unearthed where one can even simply bend over the riverbank and pick them up (Microsoft Encarta).MiningOne of the two primary industries of early civilization is mining. Like agriculture, it is one of humankind’s earliest endeavors (Introduction to Mining 1). In 3400, Egyptians in Sinai did the first ever-recorded mining where they have found turquoise (Introduction to Mining 7). Usually, gemstones are excavated at the surface. However, through the years, underground mining especially for diamonds have been developed. Unlike surface mining, underground mining is more complicated and expensive. It involves the efficiency, safety and permanence underground (Introduction to Mining 11).Mining is the process of obtaining useful minerals from the earth’s crust. Its process requires excavations in underground mines and surface excavations in open pit or open cut mines. Thus, it involves physical removal of rock and earth to acquire gems and other important minerals. (Microsoft Encarta). Mining consists of four stages. These stages are prospecting or search for mineral deposits, exploration or the work included in evaluating the extent of economic value of the deposit, innovation or the work of preparing access to the deposit so that the minerals can be extorted from it and exploitation which is the process of extracting the minerals (Microsoft Encarta).Methods of MiningThere are several methods of mining. For gemstones, they are usually obtained on rivers and shores. However, there are also other ways of obtaining them in large scale mining operations. Exploitation methods can be classified into two categories based on setting which are surface and underground mining. Surface mining operations consists of mechanical excavation techniques such as open pit and open cast or strip mining. T here are also aqueous methods such as placer mining and solution mining. On the other hand, underground mining is usually categorized into unsupported, supported and caving methods (Introduction to Mining 11).Placer mining involves excavating loose or alluvial such as sand and gravel. The sought after gems are separated from the sand or gravel by a series of screens, jigs and sluices. This type of mining is usually used for diamonds and rubies (Microsoft Encarta). At present, surface mining involves production of blastholes 3-15 inches in diameter by rotary or percussion drills for the placement of explosives in order to remove consolidated rock. The explosives are then inserted and detonated. The material then is loaded and hauled for transport (Introduction to Mining 15).Diamond MiningDiamonds are mined by pipe or alluvial methods. In pipe mining, extraction of diamonds is done from volcanic pipes. Unlike other gems, diamonds are usually found underground and on volcanic rocks and lands. In diamond pipe mining, large areas are exploited wherein an average of 250 tons of volcanic rock is mined just to produce a one-carat gem quality polished diamond (Mining Diamonds). Due to this intricate and costly process, diamonds are really rare and precious. Diamond pipe mines are composed of kimberlite material called blue ground. At the start, kimberlite is dug from the surface by rough opencast mining. Nevertheless, as the surface deposits are exhausted, pipe mining is employed by sinking shafts into the ground at the edge of pipes and tunnels are driven into the deeper parts of the pipes. By doing so, diamond-bearing rock is excavated and is then transported for screening (Mining Diamonds).Another method of diamond mining is alluvial mining. In this method, diamonds are extracted from riverbeds or ocean beaches. It is true that diamonds are made inside volcanic pipes and lands, however, millions of years allowed that some of the diamonds formed are weathered out of the volcanic pipes and carried to great distances by rivers and oceans. Thus, the process of alluvial mining involves building a wall that holds back the surf. About 25 meters of sand is demolished aside to reach the diamond-containing level in the ocean and riverbeds. The diamond-containing sand is then acquired and transported to screening plants (Mining Diamonds).In screening plants, diamonds with kimberlite are cleaned and purified. Separation of the diamonds from the kimberlite ore involves a process much like the panning of gold. The kimberlite ore is put into large funnels along with a heavy fluid and is then, mixed in a rotating manner. Since diamonds are heavier than the other materials from which it is mined, they sink into the bottom of the funnels and spill out. After this process, the diamond is almost free from other waste (Mining for Diamonds).Diamonds can then be washed on shaking grease-covered tables. Uncut diamonds then adhere to the grease while the other fragmen ts of waste ore are vibrated past and are discharged to tailings pile. The tables are then scraped for diamonds in the grease and then are boiled to melt the grease and separate the diamonds (Microsoft Encarta). Finally, these diamonds are separated into different grades or quality as industrial, gemstone or near-gem grades.After-Mining OperationsRough uncut diamonds do not actually look attractive. Such diamonds are needed to be cut and polished before anyone can see their beauty and relevance in personal adornment and jewelry. The process of cutting and polishing originated in India where Indian natives discovered a way to make rough diamonds glisten by simply grinding another diamond against it (Mining Diamonds). Diamonds are known for their hardness, no material has ever been found which is capable of cutting diamond until the Indians found out that diamonds could actually be cut and polished by diamonds. The process of cutting and polishing typically lasts for several hours to several months. After which, the diamond will turn out lighter for at least half of its original weight (Mining Diamonds).Diamonds are first carefully examined before cutting. Diamonds are popularly cut into round brilliant since this shape gives the greatest possible brilliance with the minimal weight loss. Cutting uses an instrument similar to grinders. This cutting instrument is made of a paper-thin metal disc coated with diamond dust revolving at a fast speed. Lasers can also cut diamonds nowadays. The corners of the diamonds are then rounded by grinding another diamond producing some dust that can later be used in polishing. Diamonds are then polished to make them sparkle brighter. The diamond dust from the cutting is placed on a turntable made of iron and oiled. The cut diamond is then grinded against the turntable until it sparkles beautifully (Mining Diamonds).ConclusionGemstones are treasures not only of powerful people but also of mighty and ancient civilizations. As human kind became civilized, gemstones such as diamonds and sapphires became symbols of prosperity and elegance. Their crystalline structure, the rarity, and the arduous process of mining them have lived up to their symbolism throughout the years and continue to do so.Works Citedâ€Å"Gemstones Environment.† 18 June 1997. United States Geological Surveys, USGS. 30 April 2008 < http://pubs.usgs.gov/gip/gemstones/environment.html>.  Ã¢â‚¬Å"Gemstones Production.† 18 June 1997. United States Geological Surveys, USGS. 30 April 2008 < http://pubs.usgs.gov/gip/gemstones/production.html>.â€Å"Gemstones Terms.† 18 June 1997. United States Geological Surveys, USGS. 30 April 2008 < http://pubs.usgs.gov/gip/gemstones/terms.html>.â€Å"Gemstones†. Gemstones Specialist (703) 648-7721, Mineral Commodity Summaries, January 1996. USGS. 30 April 2008 .â€Å"Introduction to Mining.† 30 April 2008. .â€Å"Mining.† Microsoft Encarta 2007. 1993-2006 Microsoft Corpora tion. CD-ROM.â€Å"Mining Diamonds†. 30 April 2008 .â€Å"Mining for Diamonds.† 30 April 2008 .Olson, Donald. â€Å"Gemstones.† USGS 2000 Yearbook. USGS. 30 April 2008