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Causes, Impact and Management of Tsunamis :: Papers

Causes, Impact and Management of Tsunamis Presentation On the 26th of December at 06:48 Sri Lankan time(11:48) while the greater part ...

Saturday, January 25, 2020

History of DNA Sequencing and Research

History of DNA Sequencing and Research DNA sequencing technology has evolved very rapidly since its inception in the 1970s, and continues to evolve and grow today. This paper will review the major innovations and developments in sequencing technology and briefly summarize their methodologies. The first group that was able to sequence DNA was the team of Allan Maxam and Walter Gilbert (Maxam and Gilbert). This was a first generation sequencing reaction, and was developed in 1976-1977. This method uses purified DNA and relies on chemical modification of DNA bases (like depurination of adenine and guanine using formic acid and methylation using hydrazine or dimethyl sulfate). The 5 end is radioactively labeled so that it can be visualized in a gel, and then fragments of modified DNA are electrophoresed. Autoradiography can then be used to visualize the sizes of each DNA fragment. The maximum read length for this technique was approximately 100 bases long. The next major innovation in DNA sequencing was the Sanger dideoxy chain termination method. This was developed in 1977 by Frederick Sanger (Sanger, Nicklen, and Coulson), and became much more popular than Maxam and Gilberts method. Sanger sequencing is a synthesis reaction and uses dideoxy nucleotides to randomly terminate synthesized strands of DNA. The DNA strands that had been terminated with ddNTPs originally were run in 4 different lanes (one for each ddNTP) and were radiolabeled so that they could be visualized with autoradiography. Later innovations made Sanger sequencing even easier when each dideoxynucleotide was labeled with different fluorescent dyes. As such, sequences could be run on a single gel in a single lane. This method was the most popular way of sequencing DNA for many years, and was prevalent until about 2004. While read length was initially about 100 base pairs long, Sanger sequencing now has a read length of about 800 to 1000 base pairs long when run in capil lary gels. With the start of the human genome project, it was necessary to find ways to sequence DNA much more quickly and more cost-effectively than had been done previously. This led to the development of so-called à ¢Ã¢â€š ¬Ã…“second generationà ¢Ã¢â€š ¬Ãƒâ€šÃ‚  DNA sequencers. It also allowed for the use of smaller samples for sequencing. One of the first major automated platforms was the Roche 454 (Margulies et al.). This utilizes pyrosequencing, which is a synthesis type sequencing reaction. This also uses emulsion PCR on beads. When a dNTP is incorporated, it releases a pyrophosphate (PPi). ATP sulfurylase is present in the reaction mix, and when PPi is released, converts it to ATP, which can activate luciferase and the emission of light. The Roche 454 can measure the amount of light given off and relate it to the number of nucleotides that have been incorporated. One problem with this type of sequencing is that it can be difficult to accurately characterize sequences of the same nucleotide in a row as the intensity of the pyrophosphate peak given off does not have a linear relationship with the number of homopolymers present. The read length for 454 is approximately 250 base pairs long, and the error mode tends to have indels. The next major second gen sequencer is the Illumina Solexa platform (Bennett). The chemistry of this platform is that it utilizes reversible terminators and sequences by synthesis. A flow cell is covered with DNA oligonucleotides that are complementary to adaptor sequences that have been ligated to the ends of fragmented genome pieces. As the genome fragments are streamed across the surface of the flow cell, they will randomly bind and go through multiple cycles of denaturation and extension, which creates clusters of clones. After these clusters have been generated, they are loaded into a sequencer which measures fluorescent signals as single nucleotides are incorporated by taking a picture and noting the location of fluorescence. Read lengths are about 26-50 bases on average, and the types of errors that are typically present tend to be SNP errors. Another important second generation sequencer is the ABI-SOLiD (Sequencing by Oligonucleotide Ligation and Detection) sequencing platform (Valouev et al.). This is another sequencing by synthesis reaction, but unlike Illumina and 454, which use polymerases, this uses ligases. After using emulsion PCR on beads to create clonal clusters, primers base pair to a known adapter sequence that has been ligated to the genomic DNA. Differently labeled probes competitively base pair to the sequencing primer, and sequencing goes through several cycles in which different primers are used each time to bind to positions offset by a single nucleotide each time. DNA bases are added in groups of two in this method. Average read lengths for this technique are on average about 35 base pairs long. The next second generation sequencing technique is Ion Torrent, which is a sequencing by synthesis technique (http://www.iontorrent.com). When nucleotides are added to a growing DNA chain, pyrophosphate and a hydrogen ion are released. Ion Torrent takes advantage of this by measuring the pH of the reaction mix after flooding a DNA strand with the four bases (one at a time) to determine sequences. One major advantage of this technique is that it doesnt require a high-cost camera set-up to measure incorporation events. However, because it indirectly measures nucleotide addition through changes in pH, it has difficulty with accuracy in calling sequences of homopolymers, resulting in indel errors (like pyrosequencing). Average read lengths using this technique are about 200 base pairs long. A more recent innovation is the Helicos-True Single Molecule Sequencing (tSMS) technique (Thompson and Steinmann). It is somewhat similar to Illumina sequencing in that it also uses fragmented DNA, adaptors, and fluorescently labeled dNTPs, but there is no amplification step. This helps eliminate issues with GC bias, which tend to affect amplification steps and can cause errors in base calling. Average read length is greater than 25 base pairs. Pacific Biosciences SMRT technology (Single Molecule Real Time sequencing) immobilizes a DNA polymerase at the bottom of a well and is a sequencing by synthesis technique (Eid et al.). Fluorescently labeled phosphate groups in dNTPs are added to the reaction mix and as the base is added to the growing DNA strand, the machine can measure the light that is given off (each base is labeled with a different fluorescent molecule). The major advantage of this technique is that it can sequence very long reads (more than 1000 bp!) which is very important in de novo sequence assembly. In addition, PacBio can also measure methylation of DNA sequences based on the kinetics of addition of base pairs (using the observation that modified base pairs tend to take longer to incorporate into a DNA strand). Furthermore, this technique can also potentially use a single molecule of DNA, which reduces any GC bias that occurs due to amplification. The final technique that will be discussed here is nanopore sequencing (Stoddart et al.). The idea behind this is that DNA may be threaded through a nanopore one base at a time. As its fed through, the sequencer can measure the change in current as it passes through (which will vary based on what base is moving through the pore). Thus, the sequence can be determined straight from the DNA without the need for modifications or reagents. In addition, because this can be done on a single molecule, there is again no need for amplification and thus no possibility of any GC bias in base calls.

Friday, January 17, 2020

Playing God in Today’s World Essay

The two fictional characters who â€Å"play God† in their own lives are two doctors, one of philosophy (Faustus) and one of medicine (Frankenstein) and, in real life, it is anyone who takes power over another’s and one’s own life and makes up his/her own rules which go against the commandments given to us by God as the athlete Lance Armstrong did during many years. First, there is Dr. Faustus, a very famous and successful scholar. He is a smart man who knows everything about almost all sciences in the world, including philosophy, theology, law, and medicine. Yet, this knowledge is not enough for him. He is greedy and obsessive about it and the more he learns, the more he desires. Soon, all that he knows makes him extremely bored; there is only one science that gives him excitement – magic. â€Å"These books by magicians- lines, circles and mysterious drawings- Yes, these are the books that I enjoy the most. Oh, what a world of power and reward they promise the hard-working student! With this knowledge, I’ll be the master of everything that moves on Earth†¦ this is your answer Faustus. Use your brain to become a god† (Marlowe 22). Faustus is willing to do anything to be the greatest in this field, so he decides to sign an agreement with the Devil and give him his soul in exchange for 24 years of magical talents and power over life itself. After this agreement is set, Faustus gets all the unimaginable power in life; learns all that he wants about this forbidden science; brings people back to life, and earns worldwide admiration and recognition for his work. Nevertheless, none of these God-like powers and tricks of magic bring him happiness. Deep in his heart he knows he is doing wrong and he will be damned forever. At last, he ends his days being lonely and is punished forever in hell. Clearly, Faustus tries to play God, but at the end, the only thing he does is to bring God’s anger upon himself. â€Å"With paper wings he flew too near the sun and heaven planned his downfall† (epilogue). Secondly, there is Victor Frankenstein, a man who has everything he needs plus a very happy family. He is a great man, who is dedicated to his studies and very clever, but he makes the same mistake as Faustus did. He plays God by trying to discover the secrets of life, and when he does, he uses them the wrong way. When his mother dies, he has to leave his sad family and go to university to study medicine. There, he becomes obsessed with the idea of knowing â€Å"the secret of life† and how to help others not to feel the sorrow he and his family did because of the loss of a loved one. Soon, after much study about death and life, he finds the answer to all the questions in his head and starts to develop a horrible project. â€Å"He takes parts from dead people and builds a new ‘man’. But this monster is so big and frightening that everyone runs away from him – even Frankenstein himself! (Comment by editor). Victor is so terrified of his own creation that the only thing he wants is to escape from it so, irresponsibly; he abandons his laboratory and the monster, which has no idea of how to speak, survive, or live. †The monster is like an enormous baby who needs love. But nobody gives him love, and soon he learns to hate. And because he is so strong, the next thing he learns is how to kill† (Comment by editor). The monster is full of resentment and decides to make Frankenstein just an unhappy and lonely as he has been his entire life. He kills all people Frankenstein loves and makes Victor look forward only to the day that he can be dead and together with his family. Clearly, Frankenstein tries to play God, but at the end, the only thing he does is to bring unhappiness and misery to his life and his loved ones’. Finally, there is Lance Armstrong, a successful and rich cyclist who has won the Tour De France seven consecutive times. He has a lot of fans around the world and is considered a strong and admirable man by many people. However, after years of arduous denials and attacks on any person who has questioned his clams of competing clean, he has been proved to use performance-enhancing drugs since 1998. Now, he is disqualified from all his titles since that year and banned from professional cycling for life. Fans, friends, and family have gone away from him and now he is left only with the money that he has made, but today this does not seem to make him happy. He did a lot of mistakes through his career and personal life and used his cancer to justify them to himself. My cocktail, so to speak, was only EPO, not a lot, [blood] transfusions and testosterone, which I almost justified because of my history. Obviously, the testicular cancer and losing [a testicle], [I] thought, surely I’m running low. †(Armstrong’s interview with Oprah). The first mistake that he makes is to forget about his spiritual values and to start violating God’s law. Victory becomes his obsession and he is wi lling to obtain it at all costs. He is not only loosing his soul, but also damaging his body and reputation. Moreover, he has given false witness in front of millions of people and fooled everyone who believes in him. Again in this case, it is clearly illustrated how â€Å"playing God† can destroy someone’s life. Considering all the above, it is evident how obsessions can lead people to self-destruction. Armstrong, Frankenstein, and Dr. Faustus have made up their own rules and ways of living, according to what they want and not caring about how they are damaging themselves and the ones around them. They are all men of successes until God decides that it’s time to pay for the mistakes they have done; and at that point, it is too late to repent. The three of them have forgotten that life is not about what we accomplish, but about the way we do it.

Thursday, January 9, 2020

The Effects Urbanisation Is Having on Australias...

Today, this briefing note is put to you the National Taskforce on Environmental Science and Sustainable Development in response to Urbanisation and its effects on Australias’ waterways. This is fast becoming a critical environmental issue affecting Australia. It has long been known that plants act as a natural filter of water, removing all the properties that would harm the creatures that ingest it. A key issue facing developers today is an expanding population. With expanding urban sprawl vastly affecting the green space urban development, strategies continue to focus on removing the encroachment of land as a development strategy and going ‘up’. This essay will focus on the eutrophication of waterways within Australia and in†¦show more content†¦Ammonium is the form of nitrogen taken up most readily by phytoplankton because nitrate must first be reduced to ammonia before it is assimilated as amino acids in organisms (Geoscience Australia, 2013). The excessive level of certain nutrients in waterways is often linked to human activities. A comprehensive investigation on how nutrients in waterways were increasing, was undertaken by a body of individual scientists and their findings were as follows; - Run-off from agricultural areas; - Storm water and wastewater; - Turbidity and nutrient levels occur within Australia’s river systems, generally coincide in Australias river systems. A large proportion of the suspended sediment in Australian rivers results from vegetation removal, leading to gully and stream bank erosion and sheetwash. Phosphorus is overwhelmingly associated with such particulate loads (The National Land and Water Resources Audit, 2002). - Dentrification is a major sink for inorganic nitrogen in estuaries. Nitrogen loss due to denitrification can exceed 50% of the total nitrogen input, and is probably the main reason why nitrogen can sometimes be the limiting nutrient in estuaries (Berelson, W.M., Heggie, D., Longmore, A., Kilgore, T., Nickolson, G., Skyring, G. 1998). - Water column phosphorus concentrations have also been shown to increase under anoxic conditions (Webb, K.L. and DElia, C.F. 1980). This is because some of the iron oxyhydroxides that

Wednesday, January 1, 2020

How Are Proteins Transported Out Of The Nucleus - 805 Words

How are proteins transported out of the nucleus? Eukaryotic cells rely majorly on the aqueous pores of the nuclear envelope, the double membrane system surrounds the nucleoplasm, as a pathway for transportation of proteins between the nucleus and the cytosol. The process is commonly known as a kind of gated transportation as to the fact that the nuclear pore complexes (NPC) that are embedded in the aqueous pores serve as gates that only select certain molecules to pass. Proteins, as macromolecules, cannot directly diffuse through the pathway of NPCs due to the presence of the disordered region of channel nucleoporins; the bundles of the channel nucleoporins are compactly aligned in disarray in the central pore, and certain phenylalanine-glycine (FG) repeats, which are present on the bundles, are believed to associate via low-affinity, cohesive interactions to form a permeability barrier of the pore (Xu Powers, 2013) and stop macromolecules to pass through freely, thus it requires energy input and aids from other molecules to traffic proteins through NPCs. Proteins that are needed to move out of the nucleus are often referred as cargos; these proteins have a specific part of their amino acid sequences, nuclear export signals, that contains information to lead the protein to their desired destination, which is the cytosol. Proteins with their corresponding signals can be recognized by and bonded to a soluble protein, nuclear export receptors (Nakielny et al. 1999); theseShow MoreRelatedThe Role Of Proteins Of A Cell Range From Structural, Enzymatic And Hormonal Functions1345 Words   |  6 Pagesit can carry out the next process. Translation of the information collected from RNA is the next step. The information collected is transported to the protein. Certain proteins play specific roles so the body synthesizes the right protein for the specific job at certain time. Production of proteins is one of the most significant processes taking place in the cell. The role of proteins in a cell range from structural, enzymatic and hormonal functions. DNA is responsible for protein synthesis in allRead MoreThe Role Of Biology And Macromolecules1464 Words   |  6 Pagesdefining feature that separates eukaryotes from prokaryotes. This compartmentalisation of the genome provides a novel way for a cell to control gene expression, as proteins and macromolecules that are synthesised in the cytoplasm and function in the nucleoplasm must be imported across the double nuclear membrane and vice versa. ~Nucleus is greek for kernel~ The nuclear envelope is made up of an inner and outer membrane, each with phospholipid bilayers which are connected at nuclear pores. NuclearRead MoreAnimal Cells And Their Functions1044 Words   |  5 Pagescontrol the exchange of substances between the cell and its environment. Semi-permeable means that only certain molecules are allowed to be transported in and out of the cell. The membrane is mainly made up of Lipid and protein. On the diagram, the Cell Membrane forms the â€Å"outer shell† of the animal cell, and can be seen as the bold line around it. Nucleus The Nucleus has a sphere-shaped body that encloses a variety of organelles, including the nucleolus, and is home to the deoxyribonucleic acid (DNA)Read MoreMAPK And The Regulation Of The Isolation Of Eukaryotic Cells996 Words   |  4 Pagesthe nucleus, by the nuclear envelope, from the cytoplasm and the translational material held there gives the opportunity for exact regulation (Lange et al, 2006). The nuclear envelope provides the ability for regulation of gene expression and signal transduction. With this regulation cells can, if exposed to an extracellular signal, perceive and create an intracellular response to withstand or react to such a signal, for example, by signalling cascades with the use of mitogen-activated protein kinasesRead MoreThe Structure Of Eukaryotic Cells1416 Words   |  6 Pagesidentify a eukaryotic cell by its encased nucleus, containing the majority of its DNA and organelles surrounded by a membrane. Plant and Animal cells have double membranes and a hou sed nucleus therefore they are eukaryotic cells; organisms which do not contain a double membrane and an encased nucleus are known as prokaryotes, e.g. bacteria. The eukaryotic cell is made up of many membrane bound organelles which all have a specific function. Nucleus The nucleus of a eukaryotic cell holds the majorityRead MoreEssay on Make-up of Life-giving Cells991 Words   |  4 Pageseverything consisted of water, earth, fire, and air called the classical elements (about.com). Charles Darwin erroneously theorized that they regarded as â€Å"simple bags of an amorphous gel or slime called ‘protoplasm’†¦thought to be a slush of amino acids, protein, fat, and carbohydrates† (biology 281). The man who debunked the many hypothesized ideas was Robert Hooke, who was observing a cork with his handmade microscope and describing his observations in 1665. This set the new understanding of the compositionRead MoreThe Function Of A Cell A Car1523 Words   |  7 Pagesof these necessary parts can be compared to the basic function of the organelles in a Eukaryotic cell. The nucleus of a Eukaryotic cell is the largest organelle within the cell. It stores all of the information and dictates what the cell will do and how it will function. The nucleus essentially â€Å"knows† what tasks need to be done and has the blueprints to get said tasks done. The nucleus of the cell is like the diver of a car. The driver controls all of the main functions of the car, the acceleratorRead MoreScience Study Of The Natural World1270 Words   |  6 Pagesthat sticks two different materials together Surface Tension - the force in liquids that attempts to minimize surface area Electrolysis - the process where an electric current is passed through an ionized solution Amino Acid - the building blocks of proteins Polymerization - the process that creates polymers Catalyst - a material that speeds up a chemical reaction Activation Energy - the minimum amount of energy needed to start a chemical reaction Denature - remove natural processes Valence ElectronRead MoreThe Herpes Simplex Virus1106 Words   |  4 Pagesinfection. The structure of the virus is an enveloped, icosahedral capsid, and single linear double-stranded DNA. The capsid contains dsDNA, ÃŽ ± and ÃŽ ² proteins. The ÃŽ ± proteins regulate the reproductive cycle and block the presentation of antigenic peptides on the host membrane. The ÃŽ ² proteins are in charge of the viral nucleic acid metabolism and capsid proteins. The glycoprotein spikes are gB, gC, and gD. There are many modes of transmission of the virus like exchange of bodily fluids such as saliva, semenRead More Biology Cell Parts Essay2787 Words   |  12 Pages Nucleus- â€Å"the brain† or control center of the cell. The Nucleus, a membrane-bound structure of a cell, plays two crucial roles in controlling the cell. The nucleus carries the cells genetic information that determines if the organism will develop, for instance, into a tree or a human; and it directs most cell activities inc luding growth, metabolism, and reproduction by controlling protein synthesis. The presence of a nucleus distinguishes the more complex eukaryotic cells of plants and animals

Tuesday, December 24, 2019

The Origin And Discoveries Of Electricity And Magnetism

This paper is mainly about the origin and discoveries of electricity and magnetism. It is solely a summary of two natural phenomenon which have changed everything about our way of life and has ushered us into a remarkable new age. Firstly and most importantly, it is about the underlying idea of how magnetism and electricity have come about, also it outlines and maps out the development and discoveries of sources of electricity and magnetism by many inventors and the latter discoveries of mega-production. When I was a little boy, I used to wonder what causes lightning and thunder. When rain comes, I sometimes see intermittent lightning for a while before you can hear the sound of a spark which is like two short-circuited power cables. At school, we all learnt about matter, which consists of atoms and molecules and every atom has a nucleus and electron(s), inside the nucleus contains an equal number of protons and neutrons. The electrons revolve round the nucleus of the atom in order to keep it stable. Protons are positively charged particles, neutrons are neutral and electrons are negative charge particles. The nucleus is surrounded by shells; these are simply orbitals in which an electron(s) can be found. The number of orbitals depends on how many electrons the atom has. The electrons which are in the outer most orbitals have a tendency of being lost or shared by another atom in order to create a more stable configuration. Long before any knowledge of electricity existedShow MoreRelatedThe Origin Of Electricity And Magnetism1023 Words   |  5 PagesThe Origin of Electricity and Magnetism This paper is mainly about the origin and discoveries of electricity and magnetism. It is solely a summary of two natural phenomenon which have changed everything about our way of life and has ushered us into a remarkable new age. First and foremost, it is about the fundamental idea of how electricity and magnetism came about, then, the development and discoveries of sources of electricity and magnetism by many inventors and the latter discoveries of mega-productionRead MoreEngineering Essay1652 Words   |  7 Pagesthe standard of living. Electricity was one of these identified ways. The development of electricity led to the creation of electrical engineering, a challenging vocation that changed and improved our way of life. In this paper I will discuss the history of electrical engineering, the preparation for becoming an electrical engineer, and the actual career. The history of electrical engineering is rather recent, but it is based on ancient ideas. Electricity and magnetism are the two bases for electricalRead MoreThe Compass: How a Small Navigational Instrument Changed the Face of the Earth1595 Words   |  7 Pagesexclusively on the compass for navigation. While Columbus used simply methods of dead reckoning, other explorers used more complicated methods, all of which the compass rested at the very center of their techniques. As one can comprehend, the discovery of the New World can be considered one of the greatest events in human history. Without the compass, the great navigators like Columbus and Magellan would have incredible difficulties in discovering their path. After all, it would only take a fewRead MoreThe Pursuit of a Theory of Everything1489 Words   |  6 Pagesall areas of science, from biology to cosmology, and often reduces the complexity of calculations and leads to new predictions regarding related phenomena. In phy sics, the unification of seemingly unrelated concepts has led to a number of pivotal discoveries. Several physicists even posit that one ultimate Theory of Everything exists to explain the nature and behavior of all matter and energy in existence (Hawking and Mlodinow). 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Cures for diseases, new background into the first organisms to inhabit the planet, and new advances in personal technology occur so often that it may be difficult to be shocked by the world around us. However every so often a discovery is made, and an experiment goes perfectly right. The discovery of the Higgs Boson is that experiment. Well, metaphorically speakingRead MoreEssay on Faraday2921 Words   |  12 Pagesreadily changes color in sunlight, follow here. In 1825 and 1826 Faraday published papers in the Philosophical Transactions on new compounds of carbon and hydrogen, and on sulphonaphthalic acid. In the former of these papers he announced the discovery of Benzol, which, in the hands of modern chemists, has become the foundation of our splendi d aniline dyes. But he swerved incessantly from chemistry into physics; and in 1826 we find him engaged in investigating the limits of vaporization, and showingRead More The Steam Engine and Electricity Powered the Industrial Revolution1704 Words   |  7 PagesThe Steam Engine and Electricity Powered the Industrial Revolution The Industrial Revolution was an extremely important historical process in which the societies and cultures in the West, and then throughout the world, transformed under the influence of technological and scientific progress. The Western world, as industrialized as it is today, is the final result. 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Yet evidently, there are several flaws in arguing that String Theory will lead to the discovery of the Theory of Everything. It has not provided substantial experimental evidence that would confirm or deny the claims it makes, nor has it advanced the unification of any force laws (Campbell). While it provides meaningful values on paper, the

Sunday, December 15, 2019

Does Media and Music Affect Our Lives Free Essays

Critical Response The argument of whether or not music and media affect or influence our lives is a very complicated argument that divides people in their viewpoints. I personally believe that music and media will influence you only if you let it. Everything in life becomes only what you make of it and I think that some people in life hold music artists on a pedestal and go so far as to live their lives according to what they hear in their idols music. We will write a custom essay sample on Does Media and Music Affect Our Lives or any similar topic only for you Order Now A song that truly depicts this concept in a disturbing, but yet believable way is the song â€Å"Stan†, by Eminem. This songs tells the story of a young man named Stan, that believes himself to be Eminem’s biggest fan that he goes so far as to live his life in away that imitates what he believes is how Eminem lives his. He confesses his devotion to Eminem through letters and by going to concerts and standing outside in the cold for hours just to get an autograph, but things go really bad when Stan doesn’t get a reply from Eminem in a time span that he believes he should have. So Stan makes one last message for Eminem, which involves him being drunk, locking his girlfriend in the trunk and driving the car off a bridge. In the end Eminem writes Stan back with his concern of him trying to imitate his life, but then realizes what has happened. This song illustrates a perfect example of a crazed fan going to far. This guy is named Stan, which is Eminem’s â€Å"code† name, and in the music video he even dresses like him and goes so far as to make sure he has the same hairstyle and color. Everything else also is an attempt to imitate Eminem, from the pregnant girlfriend that he eventually ends up locking in the trunk and killing to have an absent father. But the thing is though is that everything he is trying to imitate in this song are not the real characteristics of Eminem, they are only based on songs Eminem has written, including one song where Eminem kills the mother of his baby and locks her in a trunk. I think that this song is a great example of how influential people can be, but I don’t think that all people are this influenced by music. I think that you are your own person and what you allow to influence you and affect you is your choice. This not only applies to music, but also to the media and news. Last week I had a very eye opening experience as a result to one of readings on the media and how much of the truth it tells and what it chooses to leave out. It made me ealize that sitting around and waiting for the truth to come to you, isn’t a logical approach and if you chose to live like that they you shouldn’t expect to receive the whole truth. The news and media also is very biased and can influence viewers to be the same. This has been very evident at least to me since 9/11, with how the media is so biased against Muslims and Arabs, and how they portray them all to be â€Å"the bad guys† and the ones to blame for the problems that we are enduring now. But what us even more upsetting is that some Americans are letting the media influence them into believing this biased view point and instead of getting the whole story by going and getting other news sources, people just go along with what the media tells them. Even though a lot of people believe that the media and music is responsible for influencing the way people live their lives and the choices they make, I believe that how it influences you and to what extent is your choice. If you hear a song on the radio that talks about killing someone, doesn’t mean that you should go out and do it, but you ultimately are the one that makes that decision, not the song. The same thing applies with the news, if you hear on the news that the Muslims are the ones to blame for all of our problems, it is your choice to agree or disagree with that statement and it is your responsibility to go and look at other sources if you want to get a real stance on the problem that is not biased. How to cite Does Media and Music Affect Our Lives, Papers

Saturday, December 7, 2019

Changing and Traditional Venture Capitalists

Question: Discuss about the Changing and Traditional Venture Capitalists. Answer: Introduction Internet gurus in China are shifting the focal point of gravity in the worldwide economy and causing other global companies to think again essential presumptions about the source of innovation-led development. Some months after drunkenness became punishable as a criminal offense, drivers in China have emerged as a greater service for avenue protection, resulting in the unexpectedly developing, yet unregulated motive for commercial enterprise (Benner, 2015). Known as Didi Chauffeur, the carrier lets clients who own a car request a chauffeur to drive them. It will probably be useful for nighttime guzzlers of Chinas notorious baijiu liquor. For instance, there was a video of a mother spending high-quality time with her toddler in the car as a speeding Didi Chauffeur appropriately transported them to their destination. This portrayed Didi Chauffeur as a safe and affordable taxi to wherever. Didi Chauffeur is a market-driving auto and taxi - hailing application devoted driver benefit is getting a large portion of a million requests a day, only three months after its dispatch. The application helps auto proprietors locate a qualified driver to escort them around in their own particular vehicle when they are in no condition to drive, for instance because of drunkenness or inebriation (Bercovici, 2011). The Five Forces of Porter This model of analysis helps to clear up why diverse industries can sustain distinctive levels of efficiency. This model was at first published by Porter. The model is comprehensively used, the world over, to separate the industry structure of an association as well as its corporate strategy. Porter perceived five certain forces that have an impact in shaping every market and industry on the planet. According to Bold (2015), the forces are as frequently as possible used to measure competition intensity, attractiveness and advantage of a market or industry. Industry competition The significance of this industry is the number of competitors plus their capability to destabilize a company. A higher number of competitors, alongside the quantity of proportionate products and services they offer, dictate the constraint of a company. Suppliers as well as customers look for a companys opposition if they cannot obtain an appropriate game plan. Capability of New Companies The force of new entrants into its market also affects an associations vitality. The smaller the amount of capital in addition to instances it takes a competitor to enter a market and be a successful competitor, the more an association's position may be significantly incapacitated. Suppliers influence This compels the industry how easily a supplier may possibly increase the price of goods and services. It is impacted by the amount of a supplier of key aspects of a better than average or service, how outstanding such a feature is as well as the sum it may charge an association to change from one supplier then another. The fewer the suppliers and the more a company depends upon a supplier, the more supremacy a supplier embraces. There are many people in China who are willing to work as part time job, and as a Valet, its not only able to let them earn some extra cash, also can satisfy their driving experience. Therefore, this reduces the suppliers influence (Botsman, 2010). Customers influence This specifically deals with the capacity customers need to drive prices down. What number of buyers or customers influences it, as well as how significant every client is in addition to the amount it might take a client to switch from one company to another. The smaller and considerably more successful a customer list, the extra control it embraces. Risks of a Substitute Competitor substitutions can be used set up of a companys products or services pose a risk. For instance, in case clients depend on a company to offer a service, which may perhaps be replaced with a different apparatus or service or through playing out the task actually; therefore, this replacement is easy with insignificant application. Overall, a companys strength could be crippled (Botsman, Rogers, 2011). PEST Analysis PEST investigation is an outstanding expository device. Beside the organization's inner assets and industry components, there are full-scale financial variables that can greatly affect the execution of an organizations policies, yet the organization cannot influence these elements. This exemplary investigation strategy is utilized for appraisal of these four figures connection to a business circumstance. In a general sense, a PEST investigation helps choose how such variables affect the implementation along with movements of a business at last. It is much of the time used as apiece of facilitated exertion through added systematic tools resembling SWOT analysis and Porter's Five Forces. Political In years, the Chinese as well as the police officers are getting more and more concerned in addition to being straight about alcohol drivers; therefore, this encourages valet industrys growth. Economic Many Venture Capital funds are interested in investing in a start-up company like Didi Chauffeur. They do this in order to profit from the ride-sharing economy in China. Social China, as the third largest alcohol consuming country with first car-sales rate in the world, Valet are perfectly match with current situation of the country. Technological The primary channels of Didi incorporate its website, application and partnered online stages, for example, WeChat. Didi's promoting channels stayed indistinct, aside from introductory individual way to deal with drivers of the principle areas, for example, air terminals and train stations. DIDI Innovation Travelers simply have to to initiate an application by means of DIDI's mobile application; a cab will get the travelers regardless of wherever they may be located. DIDI's Taxi Hailing Service, likewise taxis drivers enhance their wage by expanding the quantity of their ride and decreasing their period of waiting. Didi is likewise working with taxi organizations and the legislature keeping in mind the end goal to update the taxi business to give travelers better administration. DIDI's Taxi Hailing Service is the biggest versatile taxi hailing stage in China, with more than 1.6 million enlisted cabbies (Cadwalladr, 2016). DIDI Hitch is a social ride sharing administration that was propelled in June 2015. DIDI Hitch matches drivers and travelers who have comparable courses. It not just permits the drivers to profit to pay for their fuel and toll cost additionally gives them the chances to make companions with travelers amid their rides. DIDI Hitch likewise diminishes blockage by diminishing the quantity of vehicles in the city. DIDI Hitch is the biggest ride sharing stage in China. It is currently offered in more than 300 cities, with 3 million enlisted drivers. It associates travelers with travel needs and chauffeured autos that are enlisted on our stage. The private auto administration is currently offered in more than 150 urban areas in China, with more than 5 million drivers overhauling more than 40 million travelers. To meet different sorts of requests, DIDI has built up an arrangement of items (Carlson, n. d.). Business Model Canvas of Online Valet Platforms The structure is called "plan of action canvas" and incorporates nine building squares, which portray the way the organization makes, catches and conveys esteem. The apparatus was initially arranged at professionals overseeing organizations in transit of plan of action advancement. Plan of action canvas suits the motivation behind the review for a few reasons. To start with, it is a point by point apparatus, that incorporates more building squares than a large portion of alternate systems and portrays independently all the imperative components of the organization's exercises. This will better comprehend the foundations of the sharing economy organizations' prosperity and the way of their business. Second, it is an instrument made for the utilization of professionals, which will make the order in view of it more appropriate in the business world. Here are the components of the business model: Customer Segments This component includes the depiction of the diverse target bunches, which the organization is coming to. The comprehension of the correct target group of onlookers is applicable, in light of the fact that the point of the organization is to make income by fulfilling particular needs of the shoppers. Note that the expression "client" in this exploration will be equal to "purchaser" and will signify the last beneficiary of a decent or a service. Esteem recommendations The strategic offer incorporates the representation of the majority of the items and services that the organization offers for the specific client gather. Actually it needs to portray the advantages of the organization offer, which needs to some way or another outstand from the offers available. Channels This building piece portrays the organization's approaches to achieve its clients and convey its incentivized offers. Normally it incorporates correspondence, conveyance, and deals channels and assumes a critical part in making a specific purchaser encounter. Client connections Client relationship may appear to be a part of the past component, however here the anxiety is on the sort of relationship the organization works with its clients. In the past square it is more about the methods by which those connections are manufactured. The scope of the connections changes from individual to mechanize. Income streams This component speaks to correct operations that bring cash, and which client fragments, items in addition, services convey more to it. Income streams can be sorted into one-time and repeating (Carlson, n. d.). Conclusion This essay has been committed to the plans of action of sharing economy organizations and their elements in charge of internationalization. Sharing economy as a subject of monetary research speaks to both direness and importance. Sharing economy has developed dangerously throughout the previous fifteen years, it conveys significant instabilities and difficulties to the table of universal economy, which requires a comprehension of the way sharing economy organizations work and internationalize. All through the exploration Didis sharing economy have been investigated completely. On the premise of this examination, three sorts of plans of action were illustrated: Marketplace, Access-construct plan of action and Online Valet Platforms. Besides, Marketplace plan of action was partitioned into three particular subcategories: Pure Marketplace, Service Marketplace and Community Marketplace. References Benner, K. (2015) Thumbtack Rises New Funding at a $1.3 Billion Valuation, New York Times Bercovici, J. (2011) How Ships are Making Getting Packages as Easy as Sending Them. Retrieved December 08, 2016 Bold, C. (2015). I Had My Groceries Delivered by Instacart, and Here is How It Went, [Web log post], Retrieved December 08, 2016 Botsman, R. (2010) The case for collaborative consumption. Retrieved December 08, 2016 Botsman, R. (2013) The Sharing Economy Lacks a Shared Definition. [Web log post] Retrieved December 08, 2016 Botsman, R. and Rogers, R. (2011) what is mine is Yours, The Rise of Collaborative Consumption, (1st ed.). New York, NY: HarperCollins Publishers Cadwalladr, C. (2016). We Work, they have transformed the office, now its time for your home. Retrieved December 08, 2016 Carlson, N. (n. d.) The Good, Bad, and Ugly of Angel List Syndicates, The way start-up companies get funded is changing, and traditional venture capitalists aren't pleased. Retrieved December 08, 2016 Carson, B. (2016). The global alliance against Uber just came online. Retrieved December 08, 2016 Chatzky, J. (n. d.). Entrepreneur Friday: Rent The Runway. Retrieved December 08, 2016 Krause, S. (2006) Prosper and Zopa Bring the Business Model. [Web log post] December 08, 2016 Kristina D. (2013) The Sharing Economy: Accessibility Based Business Models for Peer-to-Peer Markets, Commission. Retrieved December 08, 2016