All About the Animals Belonging to Class Asteroidea

All About the Animals Belonging to Class Asteroidea While the classification name, Asteroidea, may not be familiar, the organisms it contains probably are. Asteroidea includes the sea stars, commonly called starfish. With about 1,800 known species, sea stars are a variety of sizes, colors and are a wide-ranging marine invertebrate. Description Organisms in the Class Asteroidea have several arms (usually between 5 and 40) arranged around a central disk. Asteroideas Water Vascular System The central disk contains the madreporite, an opening that lets water into the asteroids water vascular system. Having a water vascular system means that sea stars have no blood, but bring water in through their madreporite and move it through a series of canals, where it is then used to propel their tube feet. Classification Kingdom: AnimaliaPhylum: EchinodermataClass: Asteroidea The Asteroidea are known as the true stars, and are in a separate class from the brittle stars, which have a more defined separation between their arms and their central disk. Habitat and Distribution Asteroidea can be found in oceans around the world, inhabiting a wide range of water depths, from the intertidal zone to the deep sea. Feeding Asteroids feed on other, usually sessile organisms such as barnacles and mussels. The crown-of-thorns starfish, however, is causing extensive damage by predation on coral reefs. The mouth of an asteroid is located on its underside. Many asteroids feed by expelling their stomach and digesting their prey outside their body. Reproduction Asteroids may reproduce sexually or asexually. There are male and female sea stars, but they are indistinguishable from one another. These animals reproduce sexually by releasing sperm or eggs into the water, which, once fertilized, become free-swimming larvae that later settle to the ocean bottom. Asteroids reproduce asexually by regeneration. It is possible for a sea star to not only regenerate an arm but also nearly its entire body if at least a portion of the sea stars central disc remains.

Dystopic Literally Traditoin Essay Example

Dystopic Literally Traditoin Essay Example Dystopic Literally Traditoin Essay Dystopic Literally Traditoin Essay A dystopia is an often futuristic society that has degraded into a repressive and controlled state, often under the guise of being utopian. Dystopian literature has underlying cautionary tones. Dystopian settings are often distinguished by authoritarian or totalitarian forms of government, and feature different kinds of repressive social control systems. A lack or absence of individual freedoms and expressions are common within the genre, as is warfare and violence. BioShock is a first-person shooter video game developed by Irrational Games (at the time, named 2K Boston), and published by 2K Games.Bioshock fits the description of what one would typically expect from a dystopic body of work. In dystopian visions articulated at the beginning of the twenty-first century, one can observe a tendency to approach biotechnology as implicating the threat of post-humanity, and Bioshock uses the video game medium to explore these dystopic implications. One of the most prolific lines within the game is A Man Chooses, A Slave Obeys. This line is said by Andrew Ryan, the game’s antagonist. He was a business magnate from the 1940s and 1950s who sought to avoid scrutiny from governments and other oversight by constructing an underwater city.In doing so he would escape from moral boundaries and fundamental rights, and so the city of Rapture was born. However, when Ryan’s vision for a utopia in Rapture collapsed into dystopia, he hid himself away and used armies of mutilated drug-addicted humans to defend himself and fight those who chose to resist him. Similarly, a band by the name of Godspeed you! Black Emperor’ aimed to emulate a dystopic environment through their music. Godspeed You! Black Emperor is a Canadian post-rock band. Their track The Dead Flag Blues aims to encapsulate and provoke an emotional response from the listener.The song begins with an ominous introduction. Back by a chilling string melody, the speaker describes a derelict city in where a corrupt government brainwashes drugged civilians. The introduction is followed by the sounds of a train and high-volume suspended noise. This eventually develops into a Western-themed melody, and is capped off by an upbeat section which includes glockenspiel, violin, and slide guitar. The solemn beauty and decaying rhythm are designed to generate and emotional response from the listener. Akin to other pieces following the dystopian literary tradition Godspeed you!Black Emperor utilizes it’s medium to project a warning message, as is shown in the attached lyrics: The car is on fire, and theres no driver at the wheel, and the sewers are all muddied with a thousand lonely suicides, and a dark wind blows. Dystopic themes are being alluded to through the text. Godspeed you! Black Emperor refers to society is referred to as car; this car is being devoured by a symbolic fire representing greed. Without a driver behind the wheel, the fire cannot be extinguished- the flames shall surely consume the vehicle, and the car shall surely crash and kill all those around it.Similarity, a modern sewer is designed to pump filth away from an area. However, the startling lack of generosity caused by the thousand lonely suicides has blocked the sewers; it is implied that there is now no way to escape the film of modern life. The dark wind’ implies a complete disintegration of integrity; it is an omen for a bleak future. The government is corrupt, and were on so many drugs with the radio on and the curtains drawn. The government’s lack of integrity and interests are presented to the listener.Everyone is on drugs which have been sold to them for obscene profit by corporations because of government manipulation. The people close their windows, though which they might get a clear view of the world, and allow the radio to distract them from society’s imminent downfall. A corrupt government is common sight within traditional dystopian texts; Godspeed you! Black Emperor has used this to their advantage. Were trapped in the belly of this horrible machine and the machine is bleeding to death. The sun has fallen down and the billboards are all leering, and the flags are all dead at the top of their poles.It went like this: The buildings tumbled in on themselves; mothers clutching babies picked through the rubble and pulled out their hair. The skyline was beautiful on fire, all twisted metal stretching upwards- everything washed in a thin orange haze. I said, Kiss me, youre beautiful- these are truly the last days. You grabbed my hand and we fell into it, like a daydream or a fever. We woke up one morning and fell a little further down for sure its the valley of death. I open up my wallet and its full of blood.

Introduction to 'Rent-seeking behavior Assignment

Introduction to 'Rent-seeking behavior - Assignment Example The elderly, for instance, look for higher social security payments. Unluckily, where rights over property are weakened as well as where someone’s ownership of goods or wealth becomes debatable, other individuals could acquire more through attempts to appropriate such wealth than through manufacturing themselves. Such behavior is known as rent seeking (Forbes, 2013). There is no good reason as to why economists use this term â€Å"rent†. It means payments to a production factor in excess of the amount needed to keep the factor within its current use. The word is used to illustrate government lobbying by individuals in order to achieve special privileges. It can be called privilege seeking (Dutton, 2014). Other examples of rent seeking include: the limitation of access to profitable occupations as in modern certifications as well as licensures. Taxi licensing happens to be referenced as a rent seeking instance. Licenses issuing limits the overall tax services supply (instead of making sure of equality or competence) threatening rivalry in livery vehicles, illegal taxes or unregulated taxes causes the taxi service transactions a compulsory transfer of a fraction of the payment from consumers to operators of taxi business. The rent seeking concept may as well apply to bureaucrats’ corruption in their splitting as well as extracting rent/bribe for their application of legal, however, optional for awarding the illegitimate or legitimate benefits to their clients. Tax officials may happen to receive bribes for having reduced tax payers’ tax burden for instance (Dutton, 2014). It has been well known that individuals lobby the government for some privileges. The insight of Tullock was that privilege lobbying expenditures are high and they dissipate gains to the recipients and lead to inefficiency. For instance, a firm that deals with steel

The Circulation of Blood in the Human Body Essay

The Circulation of Blood in the Human Body - Essay Example Each side of the heart has its designated functions in the circulation of blood. The right side pumps blood that is deficient in oxygen and rich in carbon dioxide (deoxygenated blood). The blood is pumped to the lungs where oxygenation takes place. The process involves the loss of carbon dioxide to the air through the breathing process and absorption of oxygen (Storad, 2005). The oxygen is transported by the red cells in the blood, also called erythrocytes. The left side of the muscular organ pumps oxygenated blood flowing from the lungs to the other parts of the body. The technical role of the heart in the circulation of the blood is as illustrated in the video in figure 2. As can be noted from the video, the blood from the left side of the heart does not mix with that on the right side. If this happened, oxygenated blood would be deoxygenated by the high levels of carbon dioxide in the right side of the heart. The blood deficient in oxygen is circulated from the other parts of the body where respiration has taken place to the heart through the venacava (Rogers, 2011). The venacava is divided into two parts with the superior vein returning blood from the hands and the head to the heart while the inferior vein carries blood to the heart from the other parts of the body. The oxygen deficient blood flows into the right atrium because the pressure of the atrium is low based on the contraction action of the heart.

Target location technology, tracking systems Essay Example for Free

Target location technology, tracking systems Essay Today there are many differing forms of tracking systems that can be used to locate targets accurately very much different to the simple procedures used on aircraft in world war two. One of these technologies is symbology. These are imaged laid over the real world images. The images give target position and other relevant information such as the planes heading. The images change as quickly as the real world view change, there is no visible delay as this could have fatal consequences. The target is clear and weapons can easily be directed to the correct point. The guidance images are displayed in the pilots head-mounted display. These are developed at BAE systems, and their design is critical due to the setting they are used in. The headsets are linked to a powerful and accurate computer that works very quickly to update the view almost instantly and to give warnings about dangerous situations. The Kiowa helicopter from the US Army used a symbology system that included night vision. The system recorded the mission allowing the pilot to play it back. The US Army also uses a laser as a target locator. It has been developed into a hand held laser targeting technology that doesnt damage eyes. Currently they are largely ground based but they allow targets to be located and intensified even in the dark. This technology has been transferred onto a military fighter aircraft for range finding in light and dark environments. The system also gives a range finder which can vary between the direct view and an intensified view. The system can digitally provide a magnetic compass that gives range and elevation. They are already used across the world. Another possible technology is the use of intelligent radar systems that lock onto targets allowing missile to be guided. This technology can be found on the patriot missile, which is aimed at incoming missiles. The system depends on ground-based radar that locates and tracks targets however this technology could be developed to fit on an aircraft like the sidewinder missile. This is a very long ranging and variable system. It can run automatically or an operator can intervene if necessary but these need to be very accurate due the speed the missiles travel at. The radar antenna can scan the sky, identify targets, determines aim and positioning of target, gives information and can help direct the missile to the target even when missile has been launched. Two operators watch the progress of the missiles, they can then change things if necessary such as deselecting targets. One form of missile has its own in-built guidance computer and radar transmitter allowing it to guide itself. The technology allows targets to be located very accurately. Especially if the technology is watched over by operators such as the patriot missile radar system. The accuracy could save many lives, as civilian positions are less likely to be hit with the accuracy of the technology. Therefore military targets can be located successfully allowing for a less morbid military operation. The technology often needs much equipment that is highly developed and costly. As resources such as missiles with their built in computer are expended during war, much money is lost. In less developed countries this money would be needed for other vital materials, so the technology may not be used. The wastage of materials would not be environmentally friendly. The new technology would need people to be trained to be able to operate the systems. If a person puts on a headset and does not know what the lines and boxes mean they be useless at controlling it. However the training takes time to be done safely this will cost money but is necessary for the technology to be used

Queen Elizabeth I Essay -- essays research papers fc

Elizabeth I King Henry VIII wanted a son. He had been married for seventeen long years and had only been given a daughter named Mary. Someday one of his children would rule England and it was supposed to be a boy. Henry decided he wanted a younger wife who could bear many children, so he formed his own church and re-married Anne Boleyn. This began the life of Elizabeth. Elizabeth was born on Sunday, September 7th 1533 at three o’ clock in the afternoon. To the King, Anne seemed unable to have any more children. She became pregnant three more times after Elizabeth, only to lose the baby. When Elizabeth was three years old her mother was beheaded for treason and adultery. Henry had his marriage to Anne declared invalid, making Elizabeth illegitimate. His new wife, Jane Seymour finally gave him a son. His name was Edward. Jane died after childbirth and Henry married three more times and had no other children. Now that England had a Prince Elizabeth wasn’t so important. She didn’t live with her father at court, but instead she grew up at the palace of Hatfield, where she had her own governess, servants, and teachers. Elizabeth’s teachers were great university scholars. One of her teachers said that her mind had no womanly weakness and that her perseverance and memory were equal to that of a man. When Elizabeth was thirte en, Henry died and her nine year old brother, Edward became King. Edward who had never been strong or healthy died six years after becoming King. The throne was left to Elizabeth’s half sister, Princess Mary. Mary was married to Prince Philip of Spain. Mary was determined to restore Catholicism to England even if it took violence. Many of the Protestants wanted to get rid of Mary and have Elizabeth take over the throne. Mary found out about this and had Elizabeth locked up in the very tower her mother had been in before she was killed. Elizabeth waited in fear for two months. She was finally released because Mary could find no evidence against her. Elizabeth was sent to a far away palace, with only four decent rooms, where she was kept under house arrest. When some of Mary’s subjects stayed faithful to their Protestant faith she burned almost three hundred of them for heresy. This is where she got the nickname "Bloody Mary." On November 17, 1558, after ruling for five sh... ...er let it happen. She was strong. Elizabeth lived to a greater age than any English ruler before her. When Elizabeth was seventy, her health faded. She named Mary’s son James VI of Scotland as her successor. On March 24, 1603, after 45 years of reigning, Elizabeth died peacefully in her sleep. And the age she lived in was called the Elizabethan age. Elizabeth contributed so much to the people of her time and even to the people of today. Without Elizabeth we would have never been able to enjoy the work of William Shakespeare. She showed everyone that a woman could do "a man’s job." Queen Elizabeth’s Golden Speech: "Though you have had - and may have - many mightier and wiser princes sitting in this seat, yet you never had - nor shall have - any that will love you better." BIBLIOGRAPHY Stanley, Diane and Vennema, Peter, Good Queen Bess NY: Macmillan Publishing Co., 1990 Starkey, David, Elizabeth: The Struggle for the Throne NY: HarperCollins Publishers Inc., 2000 Thomas, Jane Resh, Behind the Mask: The Life of Queen Elizabeth I NY: Clarion Books, 1998 Weir, Allison, The Life of Elizabeth I NY: Ballantine Books, 1998

Brl Hardy Driving Forces to Become a Global Company

What are the driving forces behind BRL Hardy to become a global company? â€Å"A Global company is an organization that attempts to standardize and integrate operations worldwide in all functional areas. † In general, there are multiple Globalization forces; some of them are: * Industrial: get access to a bigger market to sell the product. * Financial: by emerging worldwide, it is easier to borrow money * Political forces: the raising globalization goes along with the decrease of the importance of the state. Companies can set up their headquarter in different countries, in function of the legislation in those countries. * Technological forces: the new discoveries and the fast evolving technology eases the communication and makes it easier to collect information about foreign/other goods. * Market: when companies globalize, they also become global customers. * Cost: By becoming global, companies can benefit from economies of scale. The company can also locate production in countries where production costs are lower. In early times, the wine industry was very little. There were little village labels and the grapes grew on tiny vineyards. Those factors made the wine industry very agricultural i. e. the harvest was very vulnerable to weather and diseases. On the other side, the wine business had very few multinational companies and therefore very few true global brands. This made BRL Hardy think about expanding its business to multiple locations over the world and become one of the world’s first global wine companies. The first company on the market has a big chance to become one of the biggest companies in his sector. By breaking the habit of growing and selling only its own wine, Hardy was able to build the scale necessary for creating strong brands and negotiating with retail stores. In 1882, BRLH won his first international gold medal at Bordeaux. Winning a price creates a certain reputation, which makes it more likely that the wine will sell if the company becomes a global company. Also, the company was Australia’s largest winemaker, and one of the most respected. Next to this, Australian wine was becoming a trend, and the demand from new customers in nontraditional markets grew rapidly. All this were driving forces to become a global company. Sources: http://www. slideshare. net/gugaslide/global-business-presentation http://www. slideshare. net/RealRedOne/harvard-business-school-brl-hardy-globalizing-an-australian-wine-company http://www. businessschoolnetherlands. com/files/bsn-article_marius-leibold_business-model-innovation_1. pdf http://www. andidas. com/academic/lse_coursework/MN498%20-%20Tesco%20Internationalisation_by_andidas. pdf http://scholar. sun. ac. za/bitstream/handle/10019. 1/3328/Ewouba-Biteghe,%20BS. pdf? sequence=1 http://en. wikipedia. org/wiki/Globalization