Design Phases in High Rise Building Foundation

Design Phases in High Rise Building Foundation Problems in foundation engineering are the selection of suitable beds and foundation for high rise building is one of the known problems in high rise building. In no of cases it has been discovered that the designing of building foundations goes beyond the limits of normative documents and their construction. As per requirement to ultimate strength bearing capacity especially for high rise building designs are extremely strict. Beds and foundations are quite important phenomena in design and construction of high rise building foundation. There are currently recommended foundation types where piles, combined pile-raft foundations and mat foundations are considered. Ground engineering known as geo-technical design procedures consists on several stages to gain the design of a foundation which is carried out from feasibility study to final geo-technical design followed by concept realisation and soil investigation. Researches has been carried out in accordance to design of high rise building foundation and no of ideas has been brought forward in which anchored slab foundations, raft piled foundations, mat foundations and group of piles or piles can be used for high rise buildings. Typically for high rise building foundations normally piles or group of piles are used for less than thirty floors with the diameter of 0-8 meters having length of 1-40 meters in the case of using wall in the soil ground assuming a parameter structure wall with reinforcement concrete having thickness of 60-1.5 meter which includes basement walls. While considering foundations for high rise building a major part is to aim the reduction of settlement in the new built structure to ensure the safety and sustainability with subject to long life of foundation. In most cases there can be possibilities that the soil type and ground conditions may lead to deep foundations with respect to transfer the high ultimate loads to the soil with the high bearing capacities. In case of bearing capacity of foundation which depends upon soil type, in case of high rise building foundation piles or combined piled-raft foundations are used to accommodate the allowable bearing capacity with subject to soil type and site conditions. In some cases ground water improvement is also necessary especially in urban areas to improve the volume of voids in the soil in order to built high rise building foundation to get the allowable bearing capacity and allowable foundation settlement to resist the failure of foundation. The literature review shows that a very little research work has been carried out to understand the types of foundation with subject to settlement and bearing capacity of soils effect on high rise building foundations. In view of foregoing ,by using the advance computer modelling techniques by considering case study, a no of numerical model based on standard finite-element method will be developed to investigate the behaviours of high rise building foundation by proposing a reliable foundation for high rise building with subject to settlement of foundation considering the simplified hand calculations comparing with the finite element which will be gained from computer modelling with accordance to load and other factors affecting on proposed foundation. Further in case study investigation will be carried out to examine sensitivity and limits of foundation settlements, factors affecting on settlement of foundation in accordance to load and displacement finally, a set of suggestions will be framed for future improvements of design criteria for foundations. Project proposal The selected topic of the project modelling and design of high rise building foundation is based on advanced computer based numerical modelling and a case study. Aim and objective of the project The selected project aims to understand the behaviour of foundations for high rise building Construction. The factor of settlement with respect to load and how the displacement occurs. How the ground improvements can take place. Bearing capacity of soils in case study with respect to the foundation type. Application of advanced computer based numerical modelling techniques will be utilised to compare the hand calculated results. The comparison of experimental results (case study) versus numerical modelling will be carried out to analysis the degree of agreement of both results. The scope of this project is to study the behaviour of foundations which can be used for high rise building structures. Deliverables The effect of load and displacement will be carried out with subject to settlement, bearing capacity of soils and ground water improvement The trend of modes of failure will be carried out on the performance of designed foundation Based on investigation and previous carried out a conceptual model will be developed with the help of case study. Potential Risk The potential risks of this research work are given below. A very limited time to complete the project The complexity of software and its usage. The risk of self learning of computer modelling techniques within scheduled period of time. The short of knowledge and intensive understanding of the topic. The limitation of simulating and modelling the natural site condition and interaction of soil with the pile foundation subject to corrosion induced cracking. The production of invalid results. The following steps will be taken to mitigate or avoid the above noted risks The appropriate work plan under the guidance of project supervisor will be revised. The selection of appropriate and user friendly computer package will be discussed with the supervisor. In view of complexity of usage of computer package and difficulty of self learning, an appropriate help of supervisor will be sought. A confident user of software will be identified and an additional help will be requested. In order to avoid the production of invalid results, close liaison and the scheduled meeting will be held with the project supervisor. Work Plan The stipulated completion period for this research project is three and half months. A number of tasks under various phases have been scheduled to accomplish the research project within fixed time scheduled. Phase I (Task 1 2): A comprehensive literature review will be carried out. The gaps and possible direction for research project will be outlined. The capabilities and limitations of campus based available software will be explored. And the most appropriate software available at campus will be selected and learnt to accomplish the project work. Deliverable: A report comprises the gaps and possible direction for the project will be prepared and submitted to the supervisor for correction and further guidance. Phase II (Task 3): A numerical calculation will be carried out to determine the behaviour and mechanism of propagation of corrosion product. The rate of corrosion propagation subject to various environmental factors will be investigated and quantified. Deliverable: A detail report of numerical calculation, tabular and graphical representation of results will be prepared and submitted to the supervisor for correction and further guidance. Phase III (Task 4): The procedure of computer based modelling will be outlined and model development process based on advance computer application will be carried out. The behaviour of pile foundation under the composite influence of corrosion induced cracking and soil conditions will be modelled. (Task 5 6): A parametric metric study will be undertaken to quantify the effects of various factors on propagation of cracks in concrete cover of pile foundation. An intensive analysis of data and post-processing and detailed examination will be carried out. Deliverable: A detail report of results and analysis will be prepared and submitted to project supervisor for guidance. Phase IV (Task 7, 8 9); the comparison of final results and case study will be made. The compilation of analysis of results, summary of conclusions and recommendation for possible future research work will be carried out. A draft of dissertation report will be written. The same will be submitted to supervisor for review and necessary correction and modification. Research Methodology and approach The project is principally concerned with modelling and design of high rise building foundations with subject to uses of foundations for high rise. A case study will be carried out in terms of design and model which will be appropriate for high rise in literature review the types of foundations will be investigated with subject to high rise. By applying the previous techniques and formulae for the design of foundation the results will be recorded and a comparison will be carried out with the computer software package in case study. The comparison will be carried out in terms of load versus deflection, settlement calculations by using previous methods and finite element with the choosed case study using computer modelling programme. The exploratory and quantitative methodology for the behaviour analysis of high rise building foundation will be adopted .In view of which a comprehensive model will be adopted and explored the results will be extracted from computer modelling of the problems and will be compared with the results gathered from case study results .a range of results will be produced in terms of graphical and in tabular form. The results will be analysed and compared with the results obtained from case study. The behaviour of foundation for high rise used in case study will be explored in terms of numerical modelling based on finite element. Literature survey ANCHORED-SLAB FOUNDATIONS FOR HIGH-RISE BUILDINGS Reference: Soil Mechanics and Foundation Engineering, Vol. 42, No. 4, 2005 pg; 127-130 E. A. Sorochan and D. S. Konyukhov.Scientific-Research Institute of Foundations and Underground. Structures and, Moscow State Civil-Engineering University. According to Sorochan Konyukhov; It is proposed to use foundations with anchors for the construction of high-rise buildings. Friction piles rigidly fixed to a monolithic reinforced-concrete slab are used as anchors. A 70-story 210-m-high building is analyzed for different types of foundations. Settlements and Tilts based on mathematical modelling are compared with reliable values established by the Construction Rules and Regulations. Design of piled raft foundation on soft ground Reference: report from; Y.C.Tan director, Gue partners Sdn Bhd, Kuala Lampur,Malaysia. C.M.Chow Senior Geo-technical Engineer, Gue Partners Sdn Bhd, Kuala Lampur,Malaysia. According to Y.C.Tan C.M.Chow; A design approach for piled-raft foundation system using settlement reducing piles on soft ground is presented. The design approach is divided in to two categories, i.e for low rise and medium high rise the piled raft system is generally based on the concept of settlement reducing piles to control local deformation where piles of short length are strategically located beneath concentrated loads. for medium rise buildings, piles of varying lengths with the longest piles in the middle and progressively shorter piles towards the edge are adopted to control differential settlement within allowable limits. Various design cases must be considered for the design of piled-raft using settlement reducing piles to ensure adequate provisions of pile and design of strip raft for low rise buildings while an interactive analysis to model pile -soil-structure is proposed to analyse medium-rise buildings. BEDS AND FOUNDATIONS OF HIGH-RISE BUILDINGS Reference: Soil Mechanics and Foundation Engineering, Vol. 40, No. 5, 2003 pg; 173-175 by S. B. Ukhov, Scientific-Research Institute of Foundations and Underground Structures. According to Ukhov; Bed and foundation problems occupy a special place in the design and construction of high-rise buildings. This results from the fact that the average pressures over the footprints of the buildings reach 0.5-0.8 MPa, and occasionally more. For the relatively deep bedrock in Moscow, these pressures are frequently transmitted onto soils of Quaternary deposits possessing elevated compressibility. At the same time, requirements for limiting deformations of the beds, especially for their non uniformity and tilting of the buildings remain extremely rigid. The following are currently recommended as basic types of foundations for high-rise buildings: pile, combined piled-raft, and slab, including foundations with increased stiffness (box foundations). Deep foundations, which are supported on fissured limestones, as has occurred, for example, in the construction of the underground bridge in the zone where the third transportation beltway intersects the Lenin Avenue metro station in the area of Gargarin Square, can be used for heavily loaded foundations in particularly complex cases. GEOTECHNICAL PROBLEMS ASSOCIATED WITHTHE CONSTRUCTION OF HIGH-RISE BUILDINGS. FOREIGN EXPERIENCE AND DOMESTIC PRACTICE Reference; Soil Mechanics and Foundation Engineering, Vol. 40, No. 5, 2003,pg 176-184 V. M. Ulitskii, A. G. Shashkin, and K. G. Shashkin Saint Petersburg State University for means of Communication; and, Scientific-Production Union Georekonstruktsiya Fundamentproekt. According to V. M. Ulitskii, A. G. Shashkin, and K. G. Shashkin; The concept of the piled-raft foundation assumes the transfer of some of the load from the building through the lower surface of the slab grillage . Here, the fraction of the load taken up by the slab grillage plays a basic role in the design. According to experience gained with the design of pile foundations at the Institute of Geo-technics in Darmstadt, the portion of the load taken up by the grillage slab is assigned by the designer. It is assumed that during deformation, excess loads from the piles will be transmitted onto the grillage slab; this will, as a result, also lead to an assumed distribution of pressure. Here, of course, it is considered that the settlements of the piled-raft foundation may be appreciably higher than those of a pile foundation, and may approach the settlements of a building on a slab in terms of value. It is precisely this situation that has obviously prohibited application of the concept of the piled-raft foundation to the building housing Commerce Bank II for which the requirements regarding settlements were extremely stringent. Observations made with respect to pressure transducers indicated that a slab grillage does not transmit pressures to the bed soil. On the whole, worldwide experience gained with the design and construction of high-rise buildings indicates that only high technologies of work production combined with profound analytical drafting of the design, and detailed investigations of interaction between the bed soils and building structures will make it possible to erect high-rise buildings in a fail-safe manner, including those constructed under the complex geotechnical conditions of Saint Petersburg. There is no doubt that beyond the dependence on the construction site, the erection and subsequent occupancy of high-rise buildings should be accompanied by a set of scientific measures, including a system of observations on the interaction between the basic bearing structures and bed soils. USING SETTLEMENT-CONTROL PILES TO ENHANCE MAT FOUNDATION OF A HIGH-RISE BUILDING IN ORLANDO Reference; Amr M. Sallam, Ph.D., P.E., M. ASCE, Associate Vice President, Nodarse Associates, Inc., Winter Park, Florida, USA:[emailprotected] S.E. Jim Jammal, P.E., M. ASCE, Executive Vice President, Nodarse Associates, Inc., Winter Park, Florida, USA:[emailprotected] According to Amr M Sallam Jim Jammal ; A piled raft foundation is a system in which the total structural load is supported partially by the raft (mat) through contact with the soil and the piles usually by friction. A piled raft foundation is economical because the utilized piles are usually short since they do not have to extend to a sound bearing layer. The piled raft foundation undergoes settlement that is more than that of pile foundations and less than that of mat foundations. Piled raft foundations were used to support bridges, high rise buildings, and heavy industrial plants. Most of the piled raft research concentrated on the load distribution between that mat and the piles. Analytical solutions as well as linear and nonlinear two and three dimensional Finite Element Analysis are available to optimize the piled raft design. Although a pronounced piled raft foundation was not utilized in the presented case history, the authors utilized the idea of using short frictional piles to control settlement of the mat foundation. A peer review and additional exploration study was performed by the authors to evaluate the most economical foundation system for a Downtown Orlando mixed-use building. Original design called for deep foundations in the form of Augered-Cast-In-Place piles. An alternative foundation system that consisted of solid mat foundations with settlement-control piles was recommended. The settlement-control piles were utilized below the heavily loaded column, where higher contact pressure were observed. This foundation system required continuous coordination between the geotechnical and structural engineer. The settlement-control piles was modeled in the mat structural analysis program as points of higher stiffness than the mat. The results of two static pile load tests were used to estimate the actual pile stiffness within the design load of the pile. A number of columns were monitored for settlement during and after construction. The measured settlement were substantially lower than the predi cted settlement, which proved the efficiency of the recommended mat foundation with settlement-control piles. SLAB-PILE FOUNDATION FOR A HIGH-RISE BUILDING Reference: Soil Mechanics and Foundation Engineering, Vol. 45, No. 1, 2008 pg; 17-22. R.A.Mangushev, A.V.Igoshin, N.V.Oshurkov, and A.B. Fadeev Saint Petersburg State Architectural and Civil Engineering University. According to R.A.Mangushev, A.V.Igoshin, N.V.Oshurkov, and A.B. Fadeev; A slab-pile foundation (SPF) belongs to that group of floating piles with a low slab grillage, which provides for the transfer of a portion of the load onto the soil directly through the lower surface of the grillage. SPF had become popular after several high-rise buildings had been erected on them in Frankfurt (Germany) on a thick stratum of indigenous clay. As compared with a purely slab foundation, an SPF has insignificant settlement and a lower probability of tilting. At the same time, it is more economical than a purely pile foundation where the entire load is transferred onto the piles. SPF hold promise for widespread use in the construction of tower buildings, large tanks, and other similar entities. According to author; It is difficult to analyze the causes of significant deviations in computed SPF settlements from the actual settlement based on one-time analyses. More probably, settlements on the high side, which were obtained by layer-by-layer summation even with a limitation placed on the depth of the compressible stratum with respect to a criterion of 0.5, are caused by data presented by survey organizations, where the compression modulus of the soils had been appreciably underestimated. The experience gained with installation of the SPF has therefore been successful. The actual settlement of the building is lower than the computed value, and lower than the limiting allowable settlement. There is virtually no tilt. The iteration method used to analyze the settlement of the SPF is guaranteed devoid of gross errors, and yields a cautious and, not-underestimated assessment of expected settlement.

Greenland Glaciers

Geological Features: glacier is commonly white and made of ice. It may appear dirty near its end due to debris that it is carried or pushed by the movement o f the glacier. Glaciers can be massive in size stretching across continents (Greenland) or m ay be small sitting atop of mountains. Landscape is ice with some formation of dirt and other land mixed in due to movement. B. The size Of a glacier may depend on if on land or broken off from land.Greenland Ocean depending on where the glacier is from and the time period, different mineral s and elements may be present in the glaciers core. 2. Process(SE): Glaciers are formed when snow builds up for several years from snowfall that exceeds snowbell. Over time, as new snow compresses the axis ting snow, the weight causes the snow underneath to turn to ice. The hardening effect is Simi liar to what happens when you pack a snowball in your hand.The pressure from addition al layers of snow builds for up to thousands of years; the ice gets compressed so much the at the air is forced out and the glacier's color appears to be blue. A. Singularly confederacies ice. B . As snow builds up, the pressure causes ice to form below c . Color may appear blue due to the force AAA Real world Example(s): Greenland and the formation of ice on top of the land.

10 Fascinating Facts About Cockroaches

Nobody wants to see a cockroach scurrying under the fridge when flipping on the light switch. These creatures arent exactly revered. Entomologists know otherwise, though; these insects are actually rather cool. Here are 10 fascinating facts about cockroaches that just might persuade you to think differently about them. 1. Most Species Are Not Pests What image do you conjure up when you hear the word cockroach? For most people, its a dark, dirty city apartment teeming with cockroaches. In truth, very few cockroach species inhabit human dwellings. We know of some 4,000 species of cockroaches on the planet, most of which inhabit forests, caves, burrows, or brush.  Only about 30 species like to live where people do. In the U.S., the two most common species are the German cockroach, known as  Blattella germanica, and the American cockroach,  Periplaneta americana. 2. Cockroaches Are Scavengers Most roaches prefer sugar and other sweets, but they will eat just about anything: glue, grease, soap, wallpaper paste, leather, bookbindings, even hair. And cockroaches can survive a remarkably long time without food. Some species can go as long as six weeks without a meal. In nature, cockroaches provide an important service by consuming organic waste. As with houseflies, when cockroaches take up residence among humans, they can become vehicles for spreading diseases as they scuttle about the home. Feeding on waste, trash, and food, they leave germs and droppings in their wake. 3. Theyve Been Around For a Long Time If you could travel back to the Jurassic period and walk among the dinosaurs, you would easily recognize the cockroaches crawling under logs and stones in prehistoric forests. The modern cockroach first came to be about 200 million years ago. Primitive roaches appeared even earlier, about 350 million years ago, during the Carboniferous period. The fossil record shows that Paleozoic roaches had an external ovipositor, a trait that disappeared during the Mesozoic era. 4. Cockroaches Like to Be Touched Roaches are thigmotropic, meaning they like feeling something solid in contact with their bodies, preferably on all sides. They seek out cracks and crevices, squeezing into spaces that offer them the comfort of a tight fit. The small German cockroach can fit into a crack as thin as a dime, while the larger American cockroach will squeeze into a space no thicker than a quarter. Even a pregnant female can manage a crevice as thin as two stacked nickels. Cockroaches are also social creatures, preferring to live in multigenerational nests that can range from a few bugs to several dozen. In fact, according to research, cockroaches that dont share the company of others can become ill or unable to mate. 5. They Lay Eggs, Lots of Them Mama cockroach protects her eggs by enveloping them in a thick protective case, called an ootheca. German cockroaches may encase as many as 40 eggs in one ootheca, while the larger American roaches average about 14 eggs per capsule. A female cockroach can produce multiple egg cases over her lifetime. In some species, the mother will carry the ootheca with her until the eggs are ready to hatch. In others, the female will drop the ootheca or attach it to a substrate. 6. Roaches Love Bacteria For millions of years, cockroaches have carried on a symbiotic relationship with special bacteria called Bacteroides. These bacteria live within special cells called mycetocytes and are passed down to new generations of cockroaches by their mothers. In exchange for living a life of relative comfort inside the cockroachs fatty tissue, the Bacteroides manufacture all the vitamins and amino acids the cockroach needs to live. 7. Cockroaches Dont Need Heads to Survive Lop the head off a roach, and a week or two later it will still respond to stimuli by wiggling its legs. Why? Surprisingly, its head isnt all that important to how a cockroach functions. Cockroaches have open circulatory systems, so as long as the wound clots normally, they arent prone to bleeding out. Their respiration occurs via spiracles along the sides of the body. Eventually, the headless cockroach will either dehydrate or succumb to mold. 8. Theyre Fast Cockroaches detect approaching threats by sensing changes in air currents. The fastest start time clocked by a cockroach was just 8.2 milliseconds after it sensed a puff of air on its rear end. Once all six legs are in motion, a cockroach can sprint at speeds of 80 centimeters per second, or about 1.7 miles per hour. And theyre elusive, too, with the ability to turn on a dime while in full stride. 9. Tropical Roaches Are Big Most domestic roaches dont come close to the size of their giant, tropical cousins. Megaloblatta longipennis boasts a wingspan of 7 inches. The Australian rhinoceros cockroach,  Macropanesthia rhinoceros,  measures about 3 inches and can weigh 1 ounce or more. The giant cave cricket, Blaberus giganteus, is even larger, reaching 4 inches at maturity.   10. Cockroaches Can Be Trained Makoto Mizunami and Hidehiro Watanabe, two scientists at Japans Tohoku University, found cockroaches could be conditioned much like dogs. They introduced the scent of vanilla or peppermint just before giving the roaches a sugary treat. Eventually, the cockroaches would drool when their antennae detected one of these scents in the air. More Crazy Cockroach Facts Its often been said that cockroaches are so hardy that they can survive a nuclear explosion. Although the bugs can survive levels of radiation that would kill a human being within minutes, higher levels of exposure can be deadly. In one experiment, cockroaches were exposed to 10,000 rads of radiation, about the same amount as the nuclear bombs dropped on Japan during World War II. Only about 10 percent of the test subjects survived. These hardly bugs can also hold their breath for 4 to 7 minutes at a time. Scientists arent sure why cockroaches do this, but researchers in Australia say it may be in order to preserve moisture in dry climates. They can also survive for several minutes under water, though exposure to hot water can kill them. Sources: BBC editors. Cockroaches. BBC.co.uk. October 2014.Sampaolo, Marco, et al. Cockroaches. Brittanica.com. 14 September 2014.Walker, Matt. Why Cockroaches Need Their Friends. BBC.co.uk. 2 May 2012.Willis, Bill. Separating Fact from Fiction: Cockroach Myths and Misconceptions. National Institutes of Health. 1 February 2017.

The Tell Tale Heart By Edgar Allan Poe - 899 Words

â€Å"The Tell-Tale Heart† is a story written by Edgar Allan Poe of an unnamed narrator who attempts to convince the audience of his sanity. He believes someone who is â€Å"insane† would not be able to plan and execute the detailed murder that he committed. The victim is an old man with a â€Å"filmy vulture-eye.† The narrator felt he had no choice but to kill the old man to not look at this horrific eye anymore. It is carefully calculated and the body is dismembered and stashed beneath the floorboards. The narrator’s guilt of what he had done becomes apparent when he begins hallucinating and hears the beating of the old man’s heart beneath the floorboards. Poe was an American author, editor, poet and literary critic who was considered a significant part of the American Romantic Movement. As a child, his father left the family and mother passed away a year later, leaving him as an orphaned child. He was taken in by John and Frances Allan of Richmond, Virginia, and lived with them into young adulthood. Tension began to build between John Allan and Edgar over debts and the cost of secondary education. Poe stopped attending the University of Virginia after a semester due to lack of funds. He enlisted in the army in 1827 and this is where his publishing career began, starting with an anonymous collection of poems. â€Å"I loved the old man. He had never wronged me. He had never given me insult. For his gold I had no desire. I think it was his eye! yes, it was this. He had theShow MoreRelatedThe Tell Tale Heart By Edgar Allan Poe1161 Words   |  5 PagesOut of a vast quantity of these English historians, one stood out to me, his name is Edgar Allan Poe. Poe’s writing had its own unique gothic and horror style. The story, The Tell-Tale Heart is one of his very popular pieces of literature, it not only tells a story, but uses Poe’s unique style of writing to silently incorporate different genres, themes, and symbolism to create a sub-story within the text itself. Poe was born in Boston Massachusetts on January 19, 1809. At the young age of just 2 yearsRead MoreThe Tell Tale Heart By Edgar Allan Poe1569 Words   |  7 PagesIn the short story â€Å"The Tell-Tale Heart,† author Edgar Allan Poe employs several literary devices such as symbolism, allegory, and imagery. These devices enable us to see and better comprehend the story’s events through the eyes of the narrator. The narrator explains that he is extremely nervous but clarifies that he is not insane; he even goes so far as to share an event from his past to prove that he is not crazy. He believes that he loves the old man and has nothing against him except his horribleRead MoreThe Tell Tale Heart By Edgar Allan Poe Essay1477 Words   |  6 Pagesyourself and others that you weren’t in the wrong for doing something bad? Well, the narrator in the story The Tell-Tale Heart does. Edgar Allan Poe is known to write stories that are of Dark Romanticism. Dark romanticism is a literary genre that showcases gothic stories that portray torture, insanity, murder, and revenge. The story â€Å"The Tell-Tale Heart† is no different. Edgar Allan Poe does a great job with making the readers wonder throughout this short story. This allegory makes reader’s questionsRead MoreThe Tell Tale Heart By Edgar Allan Poe986 Words   |  4 Pagesbade the gentlemen welcome. The shriek, I said, was my own in a dream.† The Tell Tale Heart is one of Edger Allan Poe’s most famous and creepiest stories. The premise of this gothic short story is that a man’s own insanity gives him away as a murderer. By usi ng the narrators own thoughts as the story Poe displays the mental instability and the unique way of creating a gothic fiction. While other stories written by Poe reflect this same gothic structure and questionable sanity, this story has aRead MoreThe Tell Tale Heart By Edgar Allan Poe1502 Words   |  7 PagesThe author Edgar Allan Poe created a beautiful writing piece called â€Å"Tell Tale Heart†, which included literal elements such as mood, tone, and point of view. The story included a tremulous mood for the reader to be able to feel the excitement of the story. According to the text â€Å"Tell Tale Heart†, it states â€Å"And now at the dead hour of the night, amid the dreadful silence of that old house, so strange a noise as this excited me to uncontrollable terror.† This illustrates that the details of the storyRead MoreThe Tell Tale Heart By Edgar Allan Poe1030 Words   |  5 PagesA Guilty- Mad Heart â€Å"Burduck then goes on to ponder how Poe used cultural anxieties and psychological panic to advantage.† (Grim Phantasms, G.A. Cevasco). In The Tell-Tale Heart by Edgar Allan Poe, a nameless man narrates the story of how he murdered an elderly man because of his eyes. In his short story The Tell-Tale Heart, Poe shows the themes of guilt and the descent into madness through the narrator, in this gothic horror story. Edgar Allan Poe wrote many gothic tales throughout his lifeRead MoreThe Tell Tale Heart By Edgar Allan Poe1133 Words   |  5 Pages Written in 1843, The Tell-Tale Heart by Edgar Allan Poe incorporates nearly all of the gothic elements. While this piece of art may not contain all of the gothic elements, it is the epitome of a gothic short story. In The Tell-Tale Heart, the setting seems to be inside an old house, which strengthens the atmosphere of mystery and suspense. The madness and overall insanity of the narrator illustrates the sense of high, overwrought emotion. The presence of creaking hinges and the darkness representRead MoreThe Tell Tale Heart By Edgar Allan Poe1644 Words   |  7 Pages Edgar Allan Poe was a prominent American writer whose writing reflected his tragic life. He began to sell short stories for profit after being forced to leave United States Military Academy for lack of financial support. Over the next decade, Poe published some of his best-known works, including The Fall of the House of Usher (1839), The Raven (1845), and The Cask of Amontillado (1846). It is in these stories that Po e established his unique dark writing style that often have the recurring themeRead MoreThe Tell Tale Heart By Edgar Allan Poe879 Words   |  4 PagesIn between guilt, paranoia and obsession The Tell-Tale Heart by Edgar Allan Poe uses several literary elements to support the themes of the story. The story is based on a gruesome murder of an old man. The author uses madness, obsession and guilt as themes to prove how the narrator is truly twisted and insane. Madness is the first theme of the story; in the beginning the narrator tries to convince the audience he is not mad (insane). â€Å"TRUE!... nervous very, very nervous I had been and am; but whyRead MoreA Tell Tale Heart By Edgar Allan Poe1156 Words   |  5 Pagescontain some level of madness. For example in the short stories â€Å"The Yellow Wallpaper† by Charlotte Perkins Gilman â€Å"The Tell-Tale Heart† by Edgar Allan Poe, both of the main character in these stories believe that they are perfectly wise, but their out of control behaviors proves that they’re mentally ill or to be more specific insane. In the short story â€Å"A tell-tale heart† the unknown narrator is telling us a story about his neighbor who is an old man but his of a vulture: blue pale eye is what

Feedback Introduction to Finance - 1991 Words

Quiz Feedback | Introduction to Finance 12/07/13 18:50 Feedback — Assignment 3 Thank you. Your submission for this quiz was received. You submitted this Assignment on Sun 7 Jul 2013 10:22 AM PDT (UTC -0700). You got a score of 90.00 out of 100.00. Please read all questions and instructions carefully. Note that you only need to enter answers in terms of numbers and without any symbols (including $, %, commas, etc.). Enter all dollars without decimals and all interest rates in percentage with up to two decimals. Read the syllabus for examples.The points for each question are listed in parentheses at the start of the question, and the total points for the entire assignment adds up to 100. Question 1 (5 points) Sachin has asked his flat†¦show more content†¦You know how to set up and calculate NPV. 10.00 / 10.00 Question Explanation A fairly common NPV problem Question 5 (10 points) Yassein is looking to refinance his home because rates have gone down from when he bought his house 10 years ago. He started with a 30-year fixed-rate mortgage of $288,000 at an annual rate of 6.5%. He can now get a 20-year fixed-rate mortgage at an annual rate of 5.5% on the remaining balance of his initial mortgage. (All loans require monthly payments.) In order to re-finance, Yassein will need to pay closing costs of $3,500. These costs are out of pocket and cannot be rolled into the new mortgage. How much will refinancing save Yassein? (i.e. What is the NPV of the refinancing decision?) Your Answer 15463 16975 ï€Å' 10.00 Correct. This is a very common situation we all face all the time. 17517 16467 Total 10.00 / 10.00 Score Explanation https://class.coursera.org/introfinance-003/quiz/feedback?submission_id=41317 Pà ¡gina 4 de 9 Quiz Feedback | Introduction to Finance 12/07/13 18:50 Question Explanation A problem we saw last week, but I expect you to do this routinely now. It is a value generating opportunity through financing only because interest rates changed. Question 6 (10 points) Chandra has the opportunity to buy a vacant lot next to several commercial properties for $50,000. She plans to buy the property and spend another $60,000Show MoreRelatedJob Requirements For Operation Manager1557 Words   |  7 PagesIntroduction Employment interview become an interactive and integral part of recruitment process that help companies and individuals to meet and choose the right person, right place. 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Music Baritone Sax Free Essays

The History of the baritone saxophone was very interesting to research giving that I have played this beautiful instrument for 4 years. Finding a little more about the history of this beautiful instrument was a very interesting time. The baritone saxophone features a low pitch. We will write a custom essay sample on Music Baritone Sax or any similar topic only for you Order Now It is a single reed instrument that is made from brass and has a tapered conical bore. Despite the baritone’s low pitch, its music is written in treble clef instead of bass clef. In modern music, the baritone saxophone is usually the largest sax featured in contemporary ensembles alongside its more common cousins, the alto and the tenor saxophone. The saxophone was invented in 1841 by Belgian manufacturer and instrument maker Adolphe Sax. His intent was to create a new instrument that would fill the gap between the loud woodwinds and the brass instruments. In 1844, Sax introduced his saxophone to the public during the Paris Industrial Exhibition. In February of that year, Berlioz conducted a concert that performed his choral work, â€Å"Chant Sacre,† which featured segments that included the new saxophone. Near the end of 1844, the saxophone enjoyed a successful orchestra debut in Georges Kastner’s opera â€Å"Last King of Juda† at the Paris Conservatory. Adolphe Sax obtained his original patents in 1846 for the baritone variation of the saxophone along with thirteen of its cousins, including the tenor, bass, alto, contrabass and sopranino saxophones. The following year, the first saxophone school was opened at the Gymnase Musical, a military band school. Ten years later, Adolphe Sax wanted to share his love and knowledge of music, so he took on a professorship at the Paris Conservatory. â€Å"Also, in 1866, Sax’s patents expired, leaving the way open for the Millereau Co. o obtain patents for their own variation of the saxophone that featured a forked F sharp key†. In 1881, Adolphe Sax extended his patent for the baritone sax and other variations, and made changes to the design of the instruments. In response to its growing popularity, Gus Buesher was the first person in the United States to build a saxophone in 1885. Over the next few years, the baritone and other variations underwent more design changes, â€Å"such a s the addition of the right hand C trill key and the invention of the single octave key†. Adolphe Sax died in 1894, but his legacy lived on when his son, Adolphe Edouard, continued his life’s work. During the 1900s, the baritone saxophone enjoyed increasing popularity, and was incorporated into Jazz bands and other musical formats. It was also used in classical compositions, but rarely for orchestral music. Notable orchestral exceptions include Richard Strauss’s â€Å"Symphonia Domestica† of 1903 and Charles Ives’s â€Å"Symphony no. 4,† composed from 1910 through 1916. Famous musicians who played the baritone sax include Harry Carney, Pepper Adams, Valentin Alvarez, Bruce Kapler, Lou Marini and LeRoi Moore. † In conclusion the Baritone Sax is a beautiful instrument that should be appreciated. Giving such a beautiful tone. By far the baritone sax is my favourite saxophone giving it shape, color, quality of tone and pitch, and allowing a player to have the control to play with dynamics. I hope you have learned alittle more about my instrument thank you. How to cite Music Baritone Sax, Papers

Human Embro Cloning Essay Example For Students

Human Embro Cloning Essay The specific objective of this major essay is to clarify and summarise the controversial debate concerning the ethical decency of embryonic cloning for therapeutic purposes. This is the form of cloning that is supposedly beneficial to a barrage of medical applications. We will identify the key opposing ethical perspectives such as those of the justification of embryonic research based on the normative theory of consequentialism. This paper will also probe into the relatively brief history of the debate while gauging the particular stumbling blocks of disagreement which bioethicists have arrived at. The topical aspects of therapeutic cloning will be closely studied by weighing the pros and cons and gaining a greater understanding of the present scenario. Formally speaking, embryonic cloning is a technique used by researchers and animal breeders to split a single embryo into two or more embryos that will all have the same genetic information. Some more extreme forms of Embryonic or Therapeutic cloning involve the deliberate creation of an identical twin to be destroyed before implantation in order to make replacement tissues. However, these identical twins are usually only six day old embryos, a minuscule collection of cells without a nervous system. Therapeutically, the notion of cloning is medically significant because cloned individuals at the embryonic stage share the same immune characteristics as each other (Harris 26). The possibility of cloning an individual at the embryo stage allows one clone to be used as a cell tissue and organ bank for the other. Embryonic cloning has a history of significant developments and discoveries that have occurred only in the past ten or twenty years. In the nineteen eighties and early nineteen nineties, sophisticated foetal and embryological research was banned by the United States Reagan and Bush administrations due to pressure from pro-life factions of the Republican party. However, these regulations against research into the controversial field were relaxed considerably with the inception of the more pro-choice Clinton administration. In October 1994, Robert J. Stillman shocked the world with the news of his successful cloning of seventeen flawed human embryos at George Washington Medical Center (Dyson Harris 276) in the United States. Events such as this have continued to spark furious debate over the past few years. In December 1998, Professor Lee Bo-Yeon of Korea created and killed the first human clone, much to the dismay of numerous pressure groups. In July this year, scientists of the United Kingdom began to publicly exploit a loophole in the Governments ruling of the rejection of spare-part cloning research. The loophole allows the researchers to continue with experiments by importing stem cells from cloned embryos which have been created and destroyed in another country. There is a rather surprising amount of medical benefits arising from therapeutic cloning research which have to be weighed before we assess where the debate is currently at. Doctors lay well founded expectations that by being able to study the multiple embryos developed through cloning, the causes of disastrous spontaneous abortions can be determined and much human loss can be averted. A greatly viable application lies in the field of clinical contraceptives. Leading contraceptive specialists perceive that if they can determine the manner in which an embryo knows where to implant itself, a contraceptive can be developed which will prevent embryos from implanting in the uterine wall. An additionally important branch of therapeutic cloning research is embryonic stem cell development. Stem cells are undifferentiated cells that can evolve into almost any type of cell (Lord 28) within the human body. These cells are not attacked by a persons immune system because of their rapid maturation and undifferentiated status. .u1755733abf804f115161d5b02b34aec2 , .u1755733abf804f115161d5b02b34aec2 .postImageUrl , .u1755733abf804f115161d5b02b34aec2 .centered-text-area { min-height: 80px; position: relative; } .u1755733abf804f115161d5b02b34aec2 , .u1755733abf804f115161d5b02b34aec2:hover , .u1755733abf804f115161d5b02b34aec2:visited , .u1755733abf804f115161d5b02b34aec2:active { border:0!important; } .u1755733abf804f115161d5b02b34aec2 .clearfix:after { content: ""; display: table; clear: both; } .u1755733abf804f115161d5b02b34aec2 { 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; } .u1755733abf804f115161d5b02b34aec2:active , .u1755733abf804f115161d5b02b34aec2:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u1755733abf804f115161d5b02b34aec2 .centered-text-area { width: 100%; position: relative ; } .u1755733abf804f115161d5b02b34aec2 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u1755733abf804f115161d5b02b34aec2 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u1755733abf804f115161d5b02b34aec2 .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; } .u1755733abf804f115161d5b02b34aec2:hover .ctaButton { background-color: #34495E!important; } .u1755733abf804f115161d5b02b34aec2 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u1755733abf804f115161d5b02b34aec2 .u1755733abf804f115161d5b02b34aec2-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u1755733abf804f115161d5b02b34aec2:after { content: ""; display: block; clear: both; } READ: Flight 93 EssayMany doctors have reason to believe that these stem cells could be used to replace damaged cell tissue in adult humans with brain and nervous system damage. Because of the large amount of cells needed, human embryo cloning will aid the eventual implantation of those cells significantly. Cancer investigation is probably the most crucial reason for research into therapeutic cloning. Oncologists believe that embryonic study will advance the understanding of the rapid cell growth of cancer. Cancer cells develop at roughly the same extraordinary speed as embryonic cells. By studying the embryonic cell growth, scientists may be able to determine how to stop it and, in turn, also stop cancer growth. Genetic embryo screenings is a branch of cloning research which is already becoming increasingly effective and precise within hospitals in England. Parents who have a history of genetically inherited diseases such as cystic fibrosis can now use an embryo screening to determine if their child has received the faulty gene. The more medically questionable use of cloned embryos is for spare parts. By freezing cloned embryos, it is possible to later thaw and implant one into the uterine wall for the development of an identical child. This foetus would then be able to provide any organs or bone marrow transplants to save the life of the original child without the necessity of being carried to a nine months full term. This last application definitely begins to raise the question of what moral status an embryo should have, if any at all. The paramount controversy lies in the distinct disagreement as to whether we can classify human embryos as people; or more precisely human beings. One of the larger problems in this debate is an equal lack of knowledge on both sides. If one says the word embryo, people conceive an image of an extremely small baby. Heads, arms and eyes are usually imagined; this is completely incorrect. As mentioned previously, the embryo appears as a tiny bowl of cells when seen with the naked eye. The cells have not begun to change yet, there is no nervous system. On the other hand, after a development period of precisely fourteen days the formation of the nervous system, including the brain, is begun via the closure of the neural tube. This process is complete after the eighteenth day of development. The debate here lies within the question of whether embryonic cells, even before the fourteenth day, deserve the same moral standing as fully developed persons. As is the case with the abortion debate, we are trying to define where life begins by using different paradigms which clash rather violently; scientific versus religious, anthropocentric versus ecocentric and political versus the masses. Pressure groups against therapeutic cloning take insignificant events and sensationalise them in order to sway the argument. An array of people now maintain that cloning can inadvertently kill the clone; this originated from the incident that a cow cloned with DNA from an adult cell may have died because of errors in its DNAs genetic reprogramming. Small details and incidents within the therapeutic cloning lead to startling accusations and supposed factual estimates. There is a barrage of groups and sectors of the global community that constantly share their drastic ethical perspectives on the therapeutic cloning debate. The religious community vigorously opposes all human cloning procedures. The doctrines of such religions as Catholicism, Judaism and Buddhism firmly believe in the notion of the human soul. It is the inner spiritual self which is believed to be born from the very first second of conception. Mostly all religions believe that the act of murder is incorrect; not only destroying another human being, but his or her soul. Cloning research involves killing embryos which, to these religions, means the murder of a soul. To the religious community, cloning in itself is a violation of natural processes which should not be interfered with because they are made possible by a supreme being. .ua8b45ad342448e1cc9e45f8041e9203e , .ua8b45ad342448e1cc9e45f8041e9203e .postImageUrl , .ua8b45ad342448e1cc9e45f8041e9203e .centered-text-area { min-height: 80px; position: relative; } .ua8b45ad342448e1cc9e45f8041e9203e , .ua8b45ad342448e1cc9e45f8041e9203e:hover , .ua8b45ad342448e1cc9e45f8041e9203e:visited , .ua8b45ad342448e1cc9e45f8041e9203e:active { border:0!important; } .ua8b45ad342448e1cc9e45f8041e9203e .clearfix:after { content: ""; display: table; clear: both; } .ua8b45ad342448e1cc9e45f8041e9203e { 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; } .ua8b45ad342448e1cc9e45f8041e9203e:active , .ua8b45ad342448e1cc9e45f8041e9203e:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .ua8b45ad342448e1cc9e45f8041e9203e .centered-text-area { width: 100%; position: relative ; } .ua8b45ad342448e1cc9e45f8041e9203e .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .ua8b45ad342448e1cc9e45f8041e9203e .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .ua8b45ad342448e1cc9e45f8041e9203e .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; } .ua8b45ad342448e1cc9e45f8041e9203e:hover .ctaButton { background-color: #34495E!important; } .ua8b45ad342448e1cc9e45f8041e9203e .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .ua8b45ad342448e1cc9e45f8041e9203e .ua8b45ad342448e1cc9e45f8041e9203e-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .ua8b45ad342448e1cc9e45f8041e9203e:after { content: ""; display: block; clear: both; } READ: THE CITY WHICH IS INSIDE YOU EssayThe scientific community is divided on the ethical implications of cloning research. One hundred bioethicists, scientists and legal scholars in America have signed a statement declaring therapeutic cloning as unethical and scientifically unnecessary (Nicholls 1). But many biologists believe that further embryonic research will be based on the normative theory of consequentialism. This theory allows for the actions of research to be taken in accordance with the desirable goal of human satisfaction, happiness or pleasure; the greatest good for the greatest number. (Preston 41). In conclusion, we can clearly see that significant steps must be taken to allow for the divergent communities of the world to reach common ground on the topic of embryonic cloning research. There are a few guidelines and regulations for cloning research which have been layed out by some governments but they are not sufficiently effective to stop the actions that, to many, seem unethical and even grotesque. Limitations which are put in place by governments can only apply to government funded experiments; currently there are no laws prohibiting any of the above procedures in privately funded research settings. At the present stage, the debate may continue and the controversies may prosper, but human embryo cloning will go on in any manner as long as no worldwide bans exist. Thoroughly continuing the review of both popular and academic literature may lead the developed nations to gain a proficient understanding of the realistic positive and negative possibilities of therapeutic cloning in the near future. This will, in time, generate the global legislations giving much needed ethical and humane boundaries to a field which is yet to be conquered.