Writer's choice Essay Example | Topics and Well Written Essays - 1000 words - 4

Writer's choice - Essay Example Toyota is an example of a company that uses operations management in order to have an edge over its competitors. This paper will examine how Toyota has, over the years, implemented exceptional management skills to increase their competitive advantage, and how this has helped them expand their global reach. Toyota is a brand recognized worldwide by most individuals. This advantage is brought on by the fact that their products are cheaper as compared to others, and at the same time, the company provides products that everyone is comfortable with in terms of desires and needs. At the outset, Toyota and its success can be attributed to the fact that they continuously improve on their products and services. This is while also catering to the aspect of time. These two highly crucial aspects of operations can only be possible if there is involvement on the part of employees and consumers. There is a high level of employee participation in the company, which allows all parties to get involved in the creation of new and improved products and services for their consumers (Williams, 2011). Through their production and just-in-time production systems, Toyota places emphasis on high quality products at all possible low costs. For effective management operations, Toyota incorporates consumer services, which allow Toyota to start projects that their consumers want or desire. These services aid Toyota in solving some of its problems. Feedback from their consumers creates an avenue for Toyota to evaluate any and all issues that come up with regards to their automobiles, hence; addressing any future problems based on past experience. In the highly competitive automobile industry, it is vital for companies to improve customer relations, which endears most of their consumers to their brands. Toyota’s approach to effective operations management has

Effects of technology Essay Example for Free

Effects of technology Essay Technology is the specific scope of idea in which it reflects the overall application of knowledge towards the development of society (Bilton, 2007). In this aspect, greater improvements in the people’s way of life are the considerations involved in order to measure the effect of technology. Today, computers are among the most influential products of technology that have already changed the way people do their tasks. To evaluate the scale of such change, the realization that almost everything on this planet runs with the help of computers is a good aspect to consider. The most essential goal in fabricating computers was to help in the data process techniques to simplify the task of using them for everyday life. Since its inception in the middle of the 20th century, the social structures of the world population has already changed. The integration of computers to almost every type of tasks has made it much easier for people to complete responsibilities that would otherwise require enormous effort and time resources. An example on how computers have changed the society may be seen in the aspect of communications. Previously, the terms like internet, chat and video conferencing have no meaning. However, today’s computer technology has provided the essential convenience of communicating with another person from across any parts of the globe. A simple click on a web browser and sending an electronic letter is very much possible. It has provided greater channels for communications in a way that ease of use is not compromised. One more feature of computers, which modified the way society does things, is their capability of integrating with almost any other pre-existing devices. Today, television sets, cameras, bank machines, grocery scanners and vehicles are using devices that were primarily fabricated with the use of computers. Because of its capability to run tests for data management, it has been very easy for product manufacturers to see opportunities for technical improvements. Computers are now considered the basic platform that enables newer devices to run. Integrated circuits in all electronic devices are utilizing he same scope of computer based technology (Wikipedia, 2007). Lastly, computers are becoming the â€Å"multiplier† devices in which other patterned ideas will be introduced. Because of the scale of presence computers has in today’s society, a simple modification procedure to improve a product or service can cause greater developments for other segments of the public. Just like what happened in the business sector wherein almost all financial transactions are now done electronically. From a simple idea of using computers as a mean to collect money figures, it has developed into aspects no one has ever imagined before; internet banking, fund transfer-monitoring, calculations of stocks and online purchasing are no all possible with computer technology. Realizing the effect of technology in the lives of the people permits the society to consider developing more opportunities. With the significant social changes brought about by computer technology, people have been equipped to face the challenges of the future.

Early American Colonies Essay -- American History

The Massachusetts colony, otherwise known as the ‘Massachusetts Bay colony’ was originally settled by Puritans in 1630. They were plagued by the religious persecutions of King Charles I and the Church of England. Weary from this dogged torment, they left England under the leadership of John Winthrop. These original colonists quickly established many small towns in the name of high religious ideals and strict societal rules. They also planted churches, spread Puritanism and religiously educated the masses, as these were some of their goals. A utopian society that other colonies looked upon with high regards was the ultimate goal. The charter that gave the Puritans freedom to leave the England had a significant loophole-the colony did not have to have a leader that represented them in England. This new government was placed in the seemingly capable hands of a governor, deputy governor and eighteen assistants, all of which were considered to be ‘freemen’. They then established a representative democratic government by which only property owning freemen who were members of the church could have a vote. The formulation of this kind of government was an early indicator of the colonists desires to be free of Britain. Winthrop was elected the first governor of the colony and he further enabled the colony to be virtually independent of Britain by laying a framework legislature that included a simple system of checks and balances along with representation. Boundaries, taxes and strict rules were also established, further severing the ties that bound the colony to England. Even though it was tragically flawed and did not last, it was a clear break from Britain’s monarchy. The flaw in the system was the element of human greed and K... ...tober 29, 2010, from http://www.spartacus.schoolnet.co.uk/USABmapM.htm Massachusetts Colony. (n.d.). Colonial Ancestors - Colonial Genealogy Records and History Information to Find Colonial Ancestors for Your Family Tree. Retrieved November 2, 2010, from http://colonialancestors.com/ma/colony.htm Massachusetts Colony. (n.d.). Colonial Ancestors - Colonial Genealogy Records and History Information to Find Colonial Ancestors for Your Family Tree. Retrieved November 2, 2010, from http://colonialancestors.com/ma/colony.htm THE QUAKER PROVINCE: 1681-1776. (n.d.). The Pennsylvania General Assembly. Retrieved November 9, 2010, from http://www.legis.state.pa.us/wu01/vc/visitor_info/pa_history/II.htm Untitled Document. (n.d.). the Quaqua Society -Financial and Career Assistance for Home Educators. Retrieved November 1, 2010, from http://www.quaqua.org/pilgrim.htm

Addiction: A Desease Or A Choice? :: Drugs Alcohol

People argue whether drug addiction is a disease or a choice. Today, I will be discussing this argument in hopes to have a better understanding as to why this topic is so controversial. Throughout my research, I easily found information on this topic and I am still not sure I have found any answers. The biggest argument is that addiction is a choice not a disease. For those on the other side of the argument they claim just the opposite. According to a source on the Internet entitled Alcohol and Drug Treatment: The Disease Concept Of Substance Abuse and Addiction, the idea of drugs and alcohol being a disease is a â€Å"very controversial and debated topic.† For the purposes of this essay, I am forced to agree that drug addiction is a choice. People get high and drink because they want to and if they are not careful they can become an addict. The research I found on this particular topic seemed to have the most support and facts to dismiss the idea that addiction is a disease. I also beeivle if there was enough evidence to support the idea of addiction being a disease it would not be such a controversial topic. According to a Website entitled â€Å"Saint Jude Retreat House,† alcoholism and drug addiction are not diseases because those types of behaviors can be avoided and there is help available to change these behaviors. Although it has been found true that drug and alcohol dependency can be passed down through hereditary there is no concrete evidence I have found that proves that this is a disease. In a book entitled Treating Substance Abuse, Theory and Technique 2nd edition, says â€Å"This first and probably least controversial of the disease models can be termed the â€Å"medical consequences model.† (Page 11). This statement seems to be saying that because this topic is so controversial and not enough medical proof is available it has been given a generic name. It is true that drugs and alcohol can cause diseases, but does that make the addiction problem a disease? Perhaps this topic is so controversial because of the lack of knowledge or understanding of drug addiction. On a Website entitled â€Å"Addiction is a Chronic Disease,† the source was comparing diabetes and cancer to support their idea that drug addiction to is a chronic disease. The Website did not give any additional support and provided no examples. Addiction: A Desease Or A Choice? :: Drugs Alcohol People argue whether drug addiction is a disease or a choice. Today, I will be discussing this argument in hopes to have a better understanding as to why this topic is so controversial. Throughout my research, I easily found information on this topic and I am still not sure I have found any answers. The biggest argument is that addiction is a choice not a disease. For those on the other side of the argument they claim just the opposite. According to a source on the Internet entitled Alcohol and Drug Treatment: The Disease Concept Of Substance Abuse and Addiction, the idea of drugs and alcohol being a disease is a â€Å"very controversial and debated topic.† For the purposes of this essay, I am forced to agree that drug addiction is a choice. People get high and drink because they want to and if they are not careful they can become an addict. The research I found on this particular topic seemed to have the most support and facts to dismiss the idea that addiction is a disease. I also beeivle if there was enough evidence to support the idea of addiction being a disease it would not be such a controversial topic. According to a Website entitled â€Å"Saint Jude Retreat House,† alcoholism and drug addiction are not diseases because those types of behaviors can be avoided and there is help available to change these behaviors. Although it has been found true that drug and alcohol dependency can be passed down through hereditary there is no concrete evidence I have found that proves that this is a disease. In a book entitled Treating Substance Abuse, Theory and Technique 2nd edition, says â€Å"This first and probably least controversial of the disease models can be termed the â€Å"medical consequences model.† (Page 11). This statement seems to be saying that because this topic is so controversial and not enough medical proof is available it has been given a generic name. It is true that drugs and alcohol can cause diseases, but does that make the addiction problem a disease? Perhaps this topic is so controversial because of the lack of knowledge or understanding of drug addiction. On a Website entitled â€Å"Addiction is a Chronic Disease,† the source was comparing diabetes and cancer to support their idea that drug addiction to is a chronic disease. The Website did not give any additional support and provided no examples.

Meteors Case Study Essay

Meteorites are rocks from space, which land on Earth, attracted by her gravity. The shooting stars that you see at night, are actually burning meteors that fall on Earth from outer space! This is the first of many interesting facts that are going to follow. Why do meteorites fall? For the same reason why anything falls on Earth – ‘Gravity’. Very few can escape it! Meteorites have their origin in outer space. They are relatively small pieces of dust and debris, usually left behind in the wake of a comet. Meteorites, that are huge in size, have their origin in space, as asteroids. They are left over pieces of matter from formation of the solar system, which could not clump together to form a planet like our Earth. There is a dense belt of such asteroids outside the orbit of the planet Mars, called the ‘Asteroid Belt’. Asteroids are huge in size and their lengths can number to kilometers! Once in a while, small pieces of rock or dust, come into range of Earth’s gravitational pull and fall on Earth as shooting stars. An asteroid dislodged from its trajectory and falling on Earth is also called a meteorite. However, an asteroid being huge in size, causes a cataclysmic explosion on Earth on impact. Origin ‘Meteor’ and ‘Meteorite’ facts are interchangeable terms and we shall see why they are so. When these rocks and pieces of dust are floating in space, they are called ‘Meteoroids’. When they make a blazing entry into Earth’s atmosphere, they are called ‘Meteors’. Finally, if they survive the burning entry into Earth’s atmosphere and fall on Earth, they are called ‘Meteorites’. So a meteorite could originate from comet debris called meteoroids or larger objects called asteroids! Here are some basic facts about meteorites, meteors and meteoroids. Comets leave tons of dust and debris in their trail as they travel along long orbits round the Sun. When Earth, while revolving around the Sun, passes through some patches of this comet debris, it enters the Earth’s atmosphere causing meteor showers. Meteor showers are periodic events. One can see thousands of meteors or shooting stars, as they are called, during such a shower. The most popular meteor showers are ‘Perseids’ (which peak around August 12) and Leonids (which peak around 17 November). During these showers, you can observe a shooting star at the rate of 1 meteor per minute on an average. A falling meteor can travel at speed of as much as 44 miles per second ! One of the facts is that they have some of the oldest rocks in the solar system among them. They could be older than the Earth and date from the period when Sun was forming! Every day, about 4 billion meteoroids fall on Earth! Majority of them are very tiny and therefore do not cause much harm. If a meteorite is observed while falling and recovered from the place of fall, it’s called a ‘fall’ meteorite. If a meteorite is not observed while falling, but found from any location, it’s called a ‘find.’ Till 2006, there have been roughly 1,050 witnessed falls while there are about 30,000 documented ‘Finds’. Falling meteors which are large in size, can create an intense electromagnetic pulse, which temporarily disrupt radio communication in the region of fall! With a properly designed radio antenna, you can actually ‘hear’ meteorites falling as radio noise. Types and Composition Here are some facts about their types and composition, that you should know about. Recovered meteorites are classified into three main categories which are ‘Chondrites’ (Make about 86% of all recovered meteorites), ‘Achondrites’ (8%) and ‘Iron’ meteorites (6 %). The name ‘Chondrites’ comes from features called ‘Chrondules’, which are melted silicate materials from their past. Chondrites are about 4.55 billion years old and are the types of rocks from which our own planet formed! Certain chondrite meteorites fallen from outer space contain traces of amino acids and organic matter, bolstering the theory that life may have been planted on Earth! This is one of the most astounding facts. Achronidtes are relatively younger meteorites of the igneous rock type and are pieces of asteroids, the Moon and Mars! Iron meteorites are composed of iron-nickel alloys and silicate materials. They are also thought to be pieces of asteroid s! Every one of these meteor facts are intriguing. Earth has been pounded by the impact of many meteorites, ranging from the very tiny to gigantic meteorites. The meteorites impact craters that are found on earth are testimony to this. It is time for the last of our facts. One gigantic meteorite impact occurred millions of years ago on Earth which brought on the extinction of dinosaurs! One question that may come to your mind is, ‘Where do meteorites fall?’. They could fall anywhere on Earth. Meteors have been found all over the world. The recent findings have been mostly in Africa and accessible parts of Antarctica. If you could find one, you are bound to be rich as private collectors and museums pay millions of dollars for them! The reason is that they are very rare and are made up of minerals, which are never found on Earth! So keep looking! You may never know, when one might pop out of the sky, making you rich. So it’s actually profitable to know some meteor fact s. Originating in the outer space, an object reaches Earth and gets a place in the list of meteorites. There have been many instances of extraterrestrial bodies impacting the Earth’s surface while some have only passed through the Earth’s atmosphere before they were destroyed. Meteorites have been arousing interest of the masses as there is an element of mystery that surrounds them. Where do they originate? What makes some of them enter the Earth’s atmosphere? How dangerous can they get? Space research and astronomy have revealed some interesting information about some of these questions and researched thoroughly on the different types of meteorites. Most of the meteorites disintegrate before reaching Earth while some reach the planet’s surface. Huge meteorites form craters on Earth while the smaller ones involve less danger. Meteorites containing small round particles are known as chondrites and form about 86% of those falling on Earth. Those similar in appearance to small igneous rocks are called achondrites and believed as being the crustal material of a steroids. Meteorites originating from the core of asteroids are known as iron meteorites and form about 5% of the meteorites, which fall. History has recorded a number of instances of meteorites impacting the Earth. ALH 84001: It was found in the Allan Hills, Antarctica in December 1984. Meteorite hunters of the United States working on ASMNET project discovered this meteorite. When discovered, its mass was 1.93 kilograms and its rock was reportedly one of the oldest forms. This meteorite was supposed to have come from Mars. Later it was believed to consist of some traces of the life on Mars and this made ALH 84001 more famous than ever. Hoba: This meteorite lies on the farm Hoba West in Namibia and has never been moved elsewhere because of its exceptionally greater mass. With a mass of about 60 tons, it is the largest meteorite known to mankind. It is tabloid in shape and composed of metal. It is believed to have landed on Earth about 80,000 years ago. In 1955, it was declared as a national monument and has since then been attracting visitors from different parts of the world. Tunguska Event: The Tunguska explosion took place in June 1908 near Tunguska River, now a part of Russia. Most probably, the air burst of a large meteorite caused this explosion. The energy emitted from this explosion was about 1000 times greater than that of the bomb blast of Hiroshima. According to the eyewitnesses of this explosion, the event started with a flash of bright blue light and a sound originating from east and moving northward. Later the sound was accompanied by shock waves that broke windows miles away. This was one of the famous disintegrating meteorites that remain in the list of world’s most famous meteorites. Willamette Meteorite: This is an iron-nickel meteorite that was discovered in the United States near Oregon. It is the largest of the meteorites found in the United Sates as also the sixth largest in the world. Probably the meteorite had landed in the region, which is now known as Canada. This meteorite weighing about 15.5 tons is one of the very large meteorites of the world. Orgueil: This meteorite fell in France in 1864 and is a relatively older meteorite. The fall of this meteorite consisted of small stones that covered a massive area. This is one of those eight meteorites that belong to the CL chondrite group. A striking feature of this type of meteorite it that its composition is similar to that of the Sun. This meteorite is one of the most researched ones. For purposes of deeper study of the composition of this meteorite, it was split into pieces. Currently, it exists in the form of pieces kept in different museums in Europe and the United States. These were some of the famous meteorites of the world. They have always been a subject of interest for researchers around the world. Meteor showers A meteor shower is a celestial event wherein it is observed that a group of meteors radiate from anyone point in the sky. This phenomenon is also known as ‘Meteor Storm’ or ‘Meteor Outburst’. The meteors that are present in the showers are actually cosmic debris that enter the Earth atmosphere at very high speed and vaporize very quickly due to friction leaving behind a streak of light which is known as the meteor shower. An identified meteor shower is usually an annual affair as the Earth will encounter the same meteors at approximately the same time and same speed every year. Causes Meteor showers are a result of interaction that takes place between the planet Earth and a comet. Comets consist of ice and rocks (often termed dirty ice balls) that orbit around the sun like planets. Every time the comet gets close to the sun, some of the ice present in the comet melts which produces a large amount of debris. This debris moves away from the comet and becomes a part of its tail which is visible part of the comet. The solid parts of the tail are the meteoroids and they spread along the entire orbit of the comet which is termed as a meteoroid stream. As the Earth orbits around the sun, its path may cross the meteoroid stream and a meteor shower follows. When the meteoroid stream is particularly dense, then we get to witness the meteor storm and having witnessed one myself, I can guarantee that the sight is truly spectacular. People Behind the Concept It is believed that Irish astronomer George Johnstone Clooney collaborating with the British astronomer Arthur Matthew Weld Downing and Adolf Berberich belonging to the Royal Astronomical Computation Institute in Berlin, Germany offered the very first idea of the meteoroid stream in the 1890. They were able to calculate as to how the meteoroids once freed from the comet would travel at low speeds when compared to the comet itself would start drifting after completing one orbit. This effect was attributed to simple orbital wherein the materials drift laterally away from the comet as some particles make a wider orbit when compared to other particles. The gravitational pull of the Earth’s atmosphere would decide where the dust trails would pass the Earth’s atmosphere. It is a fair possibility that some years, the dust particles can completely miss the Earth’s orbit. Major Meteor Showers If you want to watch meteor showers then the best time of the year is the night of January 3. The shower has been named Quadrantids and this particular shower can produce over a close to 140 meteors per hour. The source of this shower is not a comet but a minor planet, 2003 EH1 which suffered a catastrophic breakup in 1490. However, the showers are very faint and the peak hours last only for a few hours. Hence, you will have to be in a good spot and at an ideal point to watch the shower in all its glory and the best place to watch this particular shower is from the Northern Hemisphere. But people in Southern Hemisphere need not be disappointed. As a matter of fact, they get to witness a meteor shower termed Eta Aquarids which consists of debris from the famous Halley’s Comet. This shower peaks on the night of May 5 and the rate of meteors is about 30 per hour. The meteor shower ‘Geminids’ is considered to be the best annual shower. It peaks around the night of December 13 and the rate of meteor is around 70 per hour. The source of this shower is also a minor planet, 3200 Phaethon. It is best visible from the Northern Hemisphere and it is believed that due to the extreme cold conditions, the air tends to be more transparent and this is the reason as to why this particular shower is spectacular. Sporadic Meteor Showers When the meteoroids collide with each other and can become a part of the sporadic meteors background. They form isolated meteors and are not a part of any shower. Asteroids Asteroids are considered to be remnants of an early broken planet of the solar system. Asteroids have no fixed shape and are too small to be spherical in shape. They are ellipsoids (two dimensional figure), dumbbell or irregularly shaped. As they have different shapes, they also vary in their size. The first asteroid Ceres, discovered in January 1801 by Italian astronomer Giuseppe Piazzi, is the largest known asteroid and is 940 km in diameter. Some of the smallest asteroids are just 6 meters in diameter. The mass of all the asteroids added together, is believed to lesser than the mass of the Moon. Only 200,000 asteroids have been discovered so far, but billion more undiscovered asteroids still exit in our solar system. Asteroid Belt Most asteroids lie in the asteroid belt between Mars and Jupiter, however there are more belts in the solar system, namely the ones beyond Neptune’s orbit. The belt itself has interesting origination theories. Most astronomers believe that the belt is a broken planet, while some say that the belt is primordial material that never coalesced into a planet because of Jupiter’s gravitational pull. The asteroid belt lies between the orbits of Mars and Jupiter and contains more than 200 asteroids larger than 100 km in diameter, and more than 750,000 asteroids with diameters larger than 1 km. Most asteroids are found in this belt because of the gravitational interaction between the solar system and the celestial bodies in it. As opposed to the fiction made popular by various depictions of the asteroid belt, it is not at all dense. The region is so vast that asteroids are hundreds of thousands of kilometers away from their closest neighbor. The asteroids are so small and far away from each other that they appear as faint stars, and except for Ceres, are not bright enough to be seen without some telescopic aid. Only the asteroid Vesta, on rare occasions of an extremely clear dark sky can become visible to the naked eye. What are Asteroids Composed Of? Asteroids are made of different minerals and substances. This depends on the planet they broke away from in a collision, as well as the chemical reactions they might have experienced while orbiting in the solar system. The asteroids closest to the Sun are mostly carbonaceous and the ones further away are composed of silicate rock. The metallic asteroids are made of 70-80% iron and the remaining is nickel with many other metals such as iridium mixed in. Some are also made of half silicate and half metallic. The asteroid Ceres is composed of a rocky core covered by an icy mantle, whereas Vesta has a nickel-iron core, basaltic crust and a covering of magnesium iron silicate (olivine mantle). Asteroids composition has been classified as the following: C class asteroids: They are found in the Earth’s outer belt and are darker and more carbonaceous than the ones found in the S class. D class asteroids: They are also known as Trojan asteroids of Jupiter and are dark and carbonaceous in composition. S class asteroids: They are found in the Earth’s inner belt, closer to Mars and are composed of mostly stone and iron. V class asteroids: They are a far-out group of asteroids that follow a path between the orbits of Jupiter and Uranus, and are made of igneous, eruptive materials. A near-Earth asteroid collided with the Earth about 65 million years ago, which triggered environmental changes, leading to the extinction of the dinosaurs. This asteroid created a huge circular depression called the Chicxulub Basin and is centered in Mexico’s Yucatan Peninsula, a major tourist attraction. Though the chances of asteroid collision with the Earth is very rare, they do come very close to our planet due to collisions and gravitational tugs on the highly elliptical Sun’s orbit. Most asteroids burn up in the atmosphere and never reach the Earth. NASA projects, such as the Lincoln Near-Earth Asteroid Research (LINEAR) and the Near Earth Asteroid Tracking (NEAT) main objectives are to detect and intercept asteroids or other celestial bodies coming close to the Earth before they cause untold damage to our planet. Asteroids are small celestial bodies composed of rock and metal, that revolve around the Sun. Their size can vary: some asteroids are large and roughly spherical in shape, due to which they appear like miniature planets; while the others are small and irregularly shaped. The matter of these celestial bodies also differs. The asteroid ‘Vesta’, is believed to have a nickel-iron core, olivine mantle and basaltic crust, while the asteroid ’10 Hygiea’ is composed of carbonaceous chondrite. Most of the small asteroids are piles of rubble held together by gravity. Some asteroids supposedly have traces of amino-acids and other organic compounds, and it is assumed that the impact of asteroids on the Earth could have initiated life on the planet by seeding it with the necessary chemical substances. Although, it is believed that the asteroids may have planted life on the Earth, they are capable of having catastrophic effect on the planet as well. Asteroids with a diameter of 5 to 10 meters, and energy equal to 15 kilotons of TNT, enter into the Earth’s atmosphere approximately once every year; while, those with a diameter of over 50 meters enter the Earth’s atmosphere approximately once in a thousand years. Their impact can be devastating if they hit the Earth, but they disintegrate in the upper atmosphere and most of the particles are vaporized, thus rendering them harmless. In the distant past, our planet has experienced a massive climate change and large-scale extinction of animal and plant species, ascribed to the impact of some large asteroids on the planet. The exogenesis theory suggests that origin of life on the Earth must have been triggered by the impact of some asteroid, carrying organic chemicals needed to initiate life form. The Cretaceous-Tertiary extinction event, which led to the end of dinosaurs and the Permian-Triassic extinction event that led to the end of the Permian period finishing off 90% of the species on the planet, are believed to be the result of an asteroid impact on the Earth. The craters on the solid bodies in the solar system, which were attributed to volcanic activities till 1960s, were actually formed due to the impact of celestial bodies. Researchers have determined that in the last 600 million years, 60 objects with a diameter of five km or more, have struck the Earth. Even the smallest of these object possessed energy of ten million megatons of TNT, and would have formed a crater, approximately 95 km in diameter, on the surface of our planet. The Rio Cuarto craters in Argentina are believed to have formed due to the impact of asteroids that struck this area around 10,000 years ago. In 1490, ten thousand people reportedly lost their lives due to a hail of stones from the sky. This hail of stones is assumed to be result of the disintegration of a large asteroid, after it entered the Earth’s atmosphere. In 1908, a mid-air explosion of an asteroid destroyed 80 million trees, within an area of 830 miles, near the Podkamennaya Tunguska River, in Si beria. In many cases, the sighting of a foreign body, such as an asteroid or a meteoroids is reported as a fireball in the sky. Millions of asteroids will pass by the Earth in the years to come. Though, they are unknown now, they are detectable as they come closer to the planet. The Lincoln Near-Earth Asteroid Research (LINEAR) and the Near Earth Asteroid Tracking (NEAT) are projects initiated by NASA to detect asteroids or other such foreign bodies coming close to the Earth. The need of the hour is to develop an intercept system in space, to destroy or deflect foreign objects heading towards our planet, before they prove catastrophic. Asteroids are celestial bodies consisting of rocks and metals. They are mainly concentrated in the region known as the asteroid belt which lies between the orbits of Mars and Jupiter. Asteroids can be as big as Ceres, which is close to 1000 kilometers in diameter, or can be just a few feet in diameter. Whatever the size, asteroids are neither big enough to be called planets nor are they as small as comets. They are classified as minor planets that include the Kuiper Belt Objects. Discovery On January 1, 1801, Giuseppe Piazzi discovered the first asteroid which he initially thought to be a comet. He named this asteroid Ceres, after the Sicilian Goddess of grain. Ceres is also the largest asteroid to have been discovered so far. Soon, other large asteroids like Pallas, Juno and Vista were discovered. By the end of the 19th century, several hundred asteroids were discovered. Formation of Asteroids It was once believed that asteroids were formed by the explosion of a planet orbiting between Mars and Jupiter. However, according to present day astronomers, asteroids are debris left behind by the Big Bang that could not come together to form a tenth planet because of the effect of Jupiter’s gravitational pull. Asteroid Hits Asteroids have been hitting the Earth since millions of years. However, due to the friction with Earth’s atmosphere most of the asteroids get burnt. The asteroids that enter the Earth’ s atmosphere are called meteors while the ones that get burnt and appear as shooting stars are called meteorites. According to the Giant Impact Theory, the Moon was created when Theia, an asteroid of the size of Mars, collided with the Earth in the early days of the solar system. However, some consider Theia to be more of a planetoid than an asteroid. The largest crater caused by an asteroid hit is the Chicxulub Crater in Mexico that is 180 km in diameter. The asteroid that formed the crater had a diameter of 10 km. This collision is supposed to be responsible for the extinction of a large number of flora and fauna including the dinosaur. However, the evidence of the largest asteroid hit is in the Vredefort crater in South Africa that is 300 km in diameter. Impacts of Asteroid Hits The damage that an asteroid’s impact can cause depends mainly upon its mass and velocity, as these are the two factors that determine the energy that is released when an asteroid hits the Earth. While some asteroids are capable of sending thermal waves that can incinerate most flora and fauna within a few hundred kilometers, some larger asteroids can create huge impacts causing magma to cover areas as big as continents. The worst effect of an asteroid hit is the blocking out of sunlight for months together due to formation of dust clouds and soot in the upper atmosphere. This would hamper the green plants’ ability to prepare food through the process of photosynthesis and the food chain would be disrupted. Near-Earth Asteroids Near-Earth asteroids are those that have moved closer to the Earth’s orbit as they have been knocked out of the asteroid belt due to collision with other asteroids or comets, or due to the gravitational forces of Jupiter. They are classified into the following three groups: The Amors: These are near-Earth asteroids that cross the orbit of Mars but do not go out of the Earth’s orbit. The Apollos: The orbits of these near-Earth asteroids cross the Earth’s orbit but have an orbital period of greater than one year. The Atens: These near-Earth asteroids have orbits that cross the Earth’s orbit but have an orbital period of less than one year. Asteroids are currently being monitored for their probability of colliding with the Earth. Such studies have predicted that asteroids may hit the Earth on February 1, 2019 and March 16, 2880. The probability of the 2880 collision is as high as 1 in 300. A number of projects in the field of astronomy, like Spacewatch, Near-Earth Asteroid Tracking and Catalina Sky Survey are being carried out to detect any threat of such catastrophes. Comets A comet is a small body in space. It was matter of great interest to astronomers like Sir Edmond Halley. Many decades later, comets still remain a challenging mystery for the field of astronomy. Space research institutes around the world have reported the existence of 3628 comets that are known and studied. Annually, an average of one comet is sighted by the naked eye from the surface of the Earth. According to the definitions given by the various space research organizations, a comet can be defined as a space body that travels in an elliptical orbit around the sun. Most of the comets travel in elliptical orbits. When the comet comes in the vicinity of the star it is orbiting around, its comma-like tail gets illuminated. A majority of comets are visible only through telescopes and other aids. There are however, some comets which are also visible to the naked eye. What is a Comet Made Up of? A comet is principally made up of ice, dust and different forms of gases. The nature of the components differs from comet to comet. The central part of a comet that looks like a ball is termed as the nucleus. The nucleus is principally made up of ice and frozen gases. The frozen components also include many other compounds like ammonia, methane and carbon dioxide. Rocks are another component of the nucleus. Due to such composition, the nucleus of the comet often resembles a huge ball of dirt and snow. It is also believed by some astronomers, that the nucleus of a comet is rather fragile because several comets have split into parts without any explainable reason except immense velocity. The huge elliptical orbit takes the comet in the range of heat of the star around which it is orbiting. When the comet enters the inner parts of the solar system, the frozen content of the nucleus starts melting. The gases and water within the nucleus vaporize as a result of radiation from the star and the solar wind. The immense velocity of the comet and the solar wind, push the vaporized matter away from the nucleus. This gives the comet it’s distinct tail and the comma-like appearance. The high amount of heat and the ions (charged particles that are formed due to the heat of the sun) cause the tail of the comet to glow. How are Comets Formed? According to their formation or birth, the comets can be classified into two types. The first type is short-term comets which originate in the Kuiper belt as space bodies beyond the orbit of Pluto. The gravitational pull of the planets in the solar system, causes the origin of short term comets. These comets enter the solar system and take the form of active and glowing comets. Long term comets originate as traveling bodies in the Oort cloud (located around 50,000 light years away from the sun). The gravitational attraction of the planets in the solar system and other gravitational forces cause these comets to form elliptical orbits. Death of a Comet The study of comets has revealed that they have a fragile structure. Sometimes, comets split into parts due to sheer velocity. The entry and exit of comets in the solar system in course of its orbit, reduces the amount of matter (ice and frozen gases) in it. Due to this reduction in matter, the comets break-up and disperse into clouds. A dead comet is nothing but an asteroid or a similar form of a space body. Sometimes the comets also crash in other planets when their orbits cross each other. The most famous example of such a comet is the Shoemaker Levy 9, that crashed into Jupiter. For astronomers who have spent their lives studying comets, it a very heart-breaking moment to gaze at a dying comet. The Halley’s Comet is said to be one of the most beautiful comets. Another very beautiful comet is the Hale-Bopp, that was discovered in the year 1995, on 23rd July. It was predicted by astronomers that the Halley’s Comet would be sighted in the November of 1835. Mark Twain, the famous writer, was born just two weeks after the sighting. He developed a very special liking towards the Halley’s Comet. In his biography he comments,†I came in with the Halley’s Comet, and expect to go with it. The Almighty has said no doubt, Now here are two unaccountable freaks; they came in together; they must go out together.† Halley’s Comet was next sighted on 20th April, 1910. Twain ended the journey of his life the very next day. The journey of any comet is indeed like that of Mark Twain. It is remarkably long, fast, adventurous as it streaks across the dark sky. Haley’s comet Historical Spottings British scientist, Edmond Halley who observed the comet in 1682, was the first person to establish its periodic reappearance after every 75-76 years. He studied the comet and quite accurately predicted that it had earlier appeared in 1531 and in 1607. It was named ‘Halley’ in his honor and was observed again in 1758 as stated by him. It was last seen in February 1986. However, this was not the first time the comet was in focus. The first sighting recorded, was way back in 240 BC, by the Chinese and was mentioned in a chronicle, ‘Records of the Great Historian’. The comet also finds a mention in a Babylonian clay inscription of 164 BC. It has always been a subject of great interest, since it was believed to have an influence on the contemporary events. Armenian king Tigranes II, had its image printed on the coins issued in his regime after it was sighted in 87 BC. Therefore, even though the recurrence of the comet was an unknown fact, people were fascinated b y its appearance. The bright star that appeared in the night sky in 12 BC, coinciding with the birth of Jesus, is widely believed to be the Halley’s comet. Giotto Di Bondone, the famous Italian painter, who lived before the renaissance era, painted it in his work ‘The Star of Bethlehem’ in the Nativity, in 1305. He had seen the comet appear in 1301 and was impressed by the spectacle. In the middle ages, the appearance of a comet was considered to be a warning sign of a forthcoming danger. The most famous incident of spotting a comet during this period, was in 1066, before the Battle of Hastings. King Harold who had lost the battle, was believed to have seen the comet due to which he was cursed. In fact, the Bayeux Tapestry in Normandy, France, signifies the Norman victory in this battle with an image of King Harold looking at the comet in the sky. In 1456, Pope Calixtus III had condemned its appearance considering it to be an evil omen. Three years prior to this, Europe was defeated by the Ottoman Empire. Human beings have always blamed celestial phenomena, whenever they have not been able to explain the causes of certain unfavorable events. Historically, the presence of a comet in the night sky was commonly cited as the reason behind difficult situations that were beyond the reasoning of common man. A French physician, Ambroise, had described the pitiful conditions of middle ages, when a comet was seen just before the spread of a big epidemic. According to him, some people were scared to death while others fell sick on seeing the comet. It was believed to be some ‘evil form’ leaving behind a trail of blood, believed to be a sign of misery. Recent Spottings In the 16th and the 17th century, scientists learned to calculate the speed and distance at which comets travel around the Sun. Once, Edmond Halley had established the year of its reappearance, Halley’s comet became a matter of great interest. Although, he didn’t live to see his prediction coming true, his observation had a significant impact on the way society perceived comets. The sighting of a comet, especially Halley’s comet became less of a concern and more of a curiosity among people. Once people realized that comets are orbiting bodies just like planets, they became less apprehensive on the arrival of a comet in the Earth’s visibility zone. The change in the attitude of the people was seen in the depiction of the comet in the contemporary pictures. Halley’s comet was a subject of scientific study and was depicted as a beautiful heavenly body in the sky. Famous American writer Mark Twain was born in 1835, the year when Halley’s comet ha d appeared. He predicted in 1909 that since he had ‘come’ with the comet he will ‘go out’ with it. Sure enough, he passed away a year after the comet reappeared in 1910. In the 1900s, it had appeared twice; once in 1910 and then in 1986. Further studies gave us a deep insight into the structure, composition and orbital journey of many different comets. Halley’s comet has one of the shortest orbital paths. It is classified as a short period comet, i.e. comets having an orbit period of 200 years or less. Once upon a time, it belonged to the long period class, but due to the gravitational force of planets, its orbit shortened over a period of time. Today, it is known that comets like ‘Hale Bopp’ which appeared in 1997, will reappear after 4200 years! Thus, Halley’s comet is the most frequently spotted one. Recently, it was seen in February 1986. During this visit, it was subjected to its biggest scrutiny ever. Five spacecrafts from The European Space Agency, Japan and the USSR were launched to study its surface. Structure and Composition of Halley’s Comet Halley’s comet is a big mass of ice and dust, having an elliptical orbit and shaped like a peanut. It has a highly elongated orbit, taking it very close to the Sun. It flings off far in the outer solar system, similar to a slingshot motion. The composition is mainly of water, sodium monoxide, methane, ammonia, hydrocarbons, iron and sodium. Its closest distance from the Sun was found to be just 0.6 AU (astronomical unit) and the farthest distance was calculated to be 35 AU, roughly the same distance as that of Pluto. It orbits the Sun in a retrograde or in the direction opposite to that of the planets’ revolution. The speed with respect to the Earth is quite high, since it is highly eccentric and inclined. The day time is relatively more on its surface and its maximum temperature rises up to 77 degrees celsius. Due to its large size and a well-defined and regular orbit, it was easy for the probe missions photograph it closely and study its surface. The mass of the comet is 1.7Ãâ€"1015 kilograms and the size of the nucleus has been estimated to be 15 km Ãâ€" 7 km Ãâ€" 7 km. Winds blowing near its surface are so strong that 1 gram particle of dust which hit the Giotto space probe, briefly destabilized it. Halley’s comet will next appear in 2062. Comets have always been a fascination for human beings and will continue to mesmerize generations to come, as we discover more interesting facts about these spectacular fireballs, the comets. Comet lullin Comet Lulin was discovered on July 11, 2007, by the duo of Ye Quanzhi and Lin Chi-Sheng. A non-periodic comet, Lulin appears to be greenish in color. This green color is attributed to the presence of gases such as cyanogen and diatomic carbon, which produce a green glow when illuminated by sunlight in the vacuum of the space. Officially designated as C/2007 N3 (Lulin), it is also known as the ‘Comet of Cooperation’ in China and Taiwan, as the two individuals involved in its discovery, were from these two countries. This comet was first photographed by Taiwanese astronomer Lin Chi-Sheng on July 11, 2007, while he was working on the Lulin Sky Survey Project (LUSS) at the Lulin observatory in Nantou, Taiwan. The Lulin Sky Survey Project aims to identify the numerous small objects in the solar system, particularly those that pose possible hazards to our planet. Lin used a 16-inch telescope to photograph this comet, which was initially assumed to be an asteroid. A few days later, Ye Quanzhi, a 19-year old student of meteorology from Sun Yat-Sen University, China, recognized this comet while going through Lin’s photographs. Its status of being a comet was confirmed after the presence of coma, the nebulous envelope around the nucleus of the comet, was noticed. Both, Lin and Quanzhi were accredited with the discovery of this new comet. As it was first noticed from the Lulin Observatory, it was named as Comet Lulin. Comet Lulin was seen in the Libra constellation from January to March 2009. In January, it was getting brighter and could be seen just before dawn; while in February, the brightness reached its peak. Eventually, in March, it started to fade as it went farther away from the Earth. While it was approaching the Earth, it had a typical tail pointing away from the Sun, as well as an ‘anti-tail’ which was directly pointing towards the sun. Although, it was assumed that this anti-tail was observed only in photographs, so me observers reported that it was visible even from a telescope in February 2009. According to Brian Marsden, an astronomer at Smithsonian Astrophysical Observatory, Massachusetts, this comet’s closest approach to the sun was on January 10, 2009 when it reached a distance of 113 million miles from the sun. He noticed that the comet was moving in a retrograde orbit that is near-parabolic. On February 24, Comet Lulin came the closest to the Earth, at a distance of 0.41 AU or 38 million miles to be precise. On February 4, 2009, a team of Italian astronomers, under the leadership of Ernesto Guido, witnessed a strange phenomenon taking place in comet Lulin. While photographing the comet with a remotely controlled telescope in New Mexico, they saw that its tail suddenly disconnected. Ernesto attributed this odd phenomenon to magnetic disturbance of the solar wind hitting the comet. Earlier, this had been observed with Comet Encke too, when coronal mass ejection occurred, due to such magnetic storms. Photographs taken by NASA’s Swift Gamma-ray Explorer satellite in ultra-violet and X-rays show that Lulin is shedding 800 gallons of water every second. Observations by NASA also revealed that the surface material of the comet was burning away due to sun’s heat. This sighting of Comet Lulin was a once-in-a-lifetime opportunity for the whole world, as there is no possibility of this comet returning to the inner solar system, at least not for the next thousand years. Human kind has always looked to the heavens in awe and wonder, and sometimes in fear. Perhaps no other astronomical phenomenon except a total solar eclipse has historically evoked as much fear as comets. When the specter of fear is removed, however, they emerge as strikingly beautiful objects in the sky. It was once believed that if earth passed through a tail of a comet, its inhabitants would die; this theory has been discredited. Comets are messengers from a time long past. Most are chunks of dirty ice, locked away in the Oort cloud for billions of years. (Oort cloud: – It is the source for long period comets, with orbital periods of greater than two hundred years.) Comets are familiar to nearly everyone as striking star like objects with long tails stretching across a wide band of the sky. The most famous comet, Halley’s comet makes its return to the skies every seventy-five years. The word â€Å"comet† is derived from a Greek word meaning â€Å"long haired† Comets were greatly feared before the twentieth century as bad omens. Since then, they have been identified and cataloged as objects that come from deep space. Most of them occupy orbits that carry them far outside the solar system. Many of them make only a single approach to the sun and never return again, while others exist in stable, but highly elliptical orbits that allow them to return after an extended period of time, such as the Halley’s comet. In 1986, the European space probe Giotto passed about 600 kilometers from the Comet Halley as it made its close approach to the sun. The probe verified existing theories that comets are made up of ices covered by black dust or soil. The spacecraft confirmed a theory that had been advanced prior to the reconnaissance that described comets as â€Å"dirty snowballs.† Using data taken by the spacecraft, scientists determined that the dust is composed of carbon, hydrogen, oxygen, and nitrogen. Other metals have also been discovered in comets, such as iron, calcium, nickel, potassium, copper and silicon. Halley’s comet was one of the darkest objects ever seen in the solar system; it was basically flat black. Comets are composed of a mixture of ices and dust. As a comet approaches the sun, it absorbs the suns energy and warms up. The main body of the comet is called the nucleus. As the nucleus warms, the ice beneath the comets soil evaporates. Because the comet has no atmosphere, the evaporated substance (also called a volatile) escapes into the vacuum of space as a gaseous envelope that surrounds the comet called â€Å"coma.† As the coma grows, it forms a plume of vapor that carries away some of the comets surface as well. This mixture of evaporated volatile particles and dust is carried away from the comet by solar wind, is ionized by high-energy particles, and creates the spectacular tail of the comet. The comet’s tail, glowing in the solar wind, can stream behind the comet for millions of kilometers. The nucleus of the comet consists of mostly volatile ices and dust. The ice is nearly all water ice, but there is also evidence of ices composed of carbon dioxide and methane. More elementary compounds of nitrogen, oxygen, and carbon monoxide may exist as volatile ices. Comets are typically small bodies (comparatively!!). Halley’s comet is a potato shaped object, 14 by 17 kilometers. The largest known comet is Chiron, which is estimated to be approximately 200 kilometers in diameter. Comets are thought to have formed as the solar system evolved. The material of which comets are composed was constructed by accretion at the outer edge of the disk of material that ultimately became the sun and planets. Because the comet material was fashioned at the outer edge of the solar system, the sun did not evaporate the volatiles in the cometary material. At the same time, the giant planets of the solar system formed at what would become the outer orbits of the solar system. These massive planets encountered the newly formed comets, and the ones that were not engulfed by the giant planets were, over the first billion years, catapulted into interstellar space by the planets massive gravitational fields. Not all comets met that fate, however. Some were gently nudged into stable orbits closer to the sun. Others were flung into the inner solar system and impacted the inner planets. Relevance: – The study of comets involves detailed knowledge of its composition of the outer regions of the solar system and the space between the last planet and 100,000 astronomical units onwards. Cometary study also seeks to understand complex gravitational interactions between bodies separated by wide distances and even gravitational interactions between tiny comets, their behavior when approaching the sun, and something of the makeup and evolution of the early solar system. New comets approaching the sun for the first time have been held in deep freeze in the Oort cloud and are thought to be composed of primordial material of the newly forming solar system. They have been tied up in the Oort cloud for billions of years at temperatures slightly above absolute zero. As they approach the sun, their internal gases begin to steam away. A detailed study of an approaching comet may tell cosmologists about the composition of the early solar systems. Comets and their approach have also hinted at the existence of the elusive brown dwarf, thought to be one of the most common bodies of interstellar space. Because they are so dim, they are all but invisible from Earth. On the other hand, because brown dwarfs are thought to be so plentiful, the study of comets and their orbits may give the first real clues to the former’s reality and abundance. In the early 1980s the existence of the galactic tidal action was merely speculation. Since then, careful study of cometary orbits and approaches has favorable supported the theory of galactic tides. In the close approach of Halley’s comet by an unmanned spacecraft in 1986, a wealth of information was recovered on the shape, behavior, and composition of comets. The existence of the Oort cloud and the concept gravitational interactions by passing objects in space have led to the theory of periodic comet showers. Such comet showers, separated by periods of tens of millions of years, may be responsible for the mass extinction on Earth. There is a wide speculation that Earth was struck by one or more comets 70 million years ago, which wiped out the dinosaurs. Some scientists have speculated that this extinction was the result of a shower of comets from the Oort cloud, sent on their close approach to the sun by a passing star or brown dwarf through the Oort cloud. Comets have been used to judge vast distances, evaluate the composition of the solar system as it was being born, and even test the idea that the gravity of the entire galaxy can make a difference to the smallest objects in space. Comets have been used as yardsticks to evaluate what may be the most type of star in the galaxy-the brown dwarf-which ironically is one that may never be seen. They have also been called dirty snowballs. Halley’s comet was so black that it was the darkest object ever seen in space. Yet, from these dirty specks of ice, cosmologists have witnessed some of the most spectacular light shows. Ultimately comets may also generate clues to some of the most fundamental secrets about the solar system and planets. From these tiny messengers, cosmologists may unlock and examine pristine elements from creation itself.

Spaans Cookie Company

Spaans Cookie Company Competitor Analysis and Competitive Landscape for Pumpkin Spice Cookie Spaans Cookie Company has expanded, and sells its products not only in California, but also in other states. However, there are many Companies that compete with Spaans, which also bake and sell cookies. These companies include the Great American cookie Company that specializes with gourmet cookies. Great American Cookie is based in Atlanta, but it has other 290 stores all over the United States and thus, it is a big competitor to Spaans.Advertising We will write a custom essay sample on Spaans Cookie Company specifically for you for only $16.05 $11/page Learn More Other cookie companies include Full Bloom wholesale Baking Company, which is based in California and is growing fast and Interstate Bakeries Corporation, which distributes breads and cakes all over United States. Since all these Companies have their own marketing strategies, Spaans continues to come up with many strategies to st ay at the competitive edge (Spaans Cookie Company, 2011). One strategy that Spaans uses is defining the competitive landscape for the new product – pumpkin spice cookie. This helps the company know who the real competitors are, the type of products being sold, how the customers see the competition and the business model used by competitors. Spaans analyzes its competitors in order to learn their business tricks, and this is done through going to the competitors place and learning more about the business, reading more on the competitor’s website, as well as doing more research on customer reviews. Kotler Keller (2009) affirm that understanding the competitors is essential in any business developing new products. Thus, analyzing competitors has helped Spaans to point out their strengths as well as weaknesses. Some of the weakness from other companies includes lack of quality customer service and lack of variety in products. Spaans have taken advantage of its competitorà ¢â‚¬â„¢s weaknesses and has improved by getting friendlier and kind staff, reducing its prices, and more importantly, introducing the new cookie in the market. Similarly, industry knowledge has kept Spaans at the competitive edge since it was established many years ago. Pricing Strategy Despite having many marketing strategies, Spaans should consider an important pricing strategy that determines the product positioning in the market. Pricing also affects marketing elements such as products quality, channel decisions and advertising (Kotler Keller, 2009). Spaans can use many pricing approaches in pricing the pumpkin spice cookie, but the key ones include customer and competitor based pricing. Customer based pricing has many approaches such as penetration pricing, price skimming, and loss leaderAdvertising Looking for essay on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More According to Monroe (2003), penetration pricing entails boosting market share of a product and later increasing price after attaining the market share. With this pricing technique, Spaans can introduce the new cookie in the market at a lower as compared to other cookies in order to attract new customers. It is much easy for customers to buy the new product despite having other options due to lower price. Penetration pricing should be used to launch a new product. Likewise, price skimming entails setting a higher price to a product, which is not currently in the market. Since the new pumpkin spice cookies are seasonal products, Spaans can segment its market, and only use the skimming strategy where the supply of the product is low, but the demand is high. By use of this pricing strategy, Spaans will get higher profits before other competitors create the same product and enter in the market. Spaans Cookie Company can also use loss leaders strategy, which is a sales promotion method and entails setting a products price belo w the cost price in order to attract customers. The reason of setting products as loss leaders is to encourage customers to buy more of the company’s products varieties. Furthermore, the company can factor in competitor based pricing, which involves setting the prices inline with those from competitors because customers may consider the cheapest price. When selling such products, Spaans should come up with unique ways of attracting customers such as better customer service in order to make more sales. In conclusion, although many Baking companies are trying to make their products unique, Spaans Company strives to gain the competitive advantage since it is the main strategy to survival and achievement. The company aims at coming up with sustainable market advantages such as brand name recognition. Nevertheless, it is critical for Spaans Company to determine its strengths and its competitor’s weaknesses in order to take emerging opportunities in the market. Additionally, selecting a pricing strategy is important since price is the most visible element, despite having many marketing efforts. Price also reflects the value and benefits the product gives to its customers. Therefore, customer based pricing using the skimming strategy, among others, is seen as the most appropriate pricing approach for the new pumpkin spice cookies. References Kotler, P. Keller, K. L. (2009). Marketing Management (13th ed.). Upper Saddle River, NJ: Prentice-Hall.Advertising We will write a custom essay sample on Spaans Cookie Company specifically for you for only $16.05 $11/page Learn More Monroe, K.B. (2003). The Pricing Strategy Audit. London: Cambridge Strategy Publications. Spaans Cookie Company. (2011). Spaans History. Retrieved from http://spaanscookies.com/our-story.htm

Seal and Sea Lion Facts

Seal and Sea Lion Facts With their expressive eyes, furry appearance and natural curiosity, seals have a wide appeal. Native to polar, temperate and tropical waters on the planet, seals are also known to vocalize: a captive male harbor seal named Hoover was taught to vocalize English with a prominent New England accent. Fast Facts: Seals and Sea Lions Scientific Name: Phocidae spp (seals), and Otariidae spp (fur seals and sea lions)  Common Name(s): Seals, fur seals, sea lionsBasic Animal Group: MammalSize: Range from 4–13 feet longWeight: Range between 85–4,000 poundsLifespan: 30 yearsDiet:  CarnivoreHabitat: Polar, temperate, and tropical seasPopulation: Unknown, but in the hundreds of millionsConservation Status: Tropical seals and sea lions have suffered the most from human and climatic changes. Two species are threatened; seven are currently classed as endangered.   Description Seals and sea lions are highly evolved for swimming, including flippers, a streamlined fusiform (tapered at both ends) shape, thick insulation in the form of fur and/or subcutaneous layer of blubber, and increased visual acuity for foraging at extremely low light levels.   Seals and sea lions are in the order Carnivora and suborder Pinnipedia, along with walruses. Seals and fur seals are related to bears, descended from an otter-like terrestrial ancestor, and they all have a more or less aquatic lifestyle.   Toshi Miyamoto/Getty Images   Species Seals are divided into two families: the Phocidae, the earless or true seals (e.g., harbor or common seals), and the Otariidae, the eared seals (e.g., fur seals and sea lions). The pinnipeds include 34 species and 48 subspecies. The largest species is the southern elephant seal, which can grow up to about 13 feet in length and more than 2 tons in weight. The smallest species is the Galapagos fur seal, which grows to up to about 4 feet long and weighs about 85 pounds. The species have evolved to their environment, and the handful of those species which are listed as threatened or endangered are those who live in the tropics where human interference is possible. The arctic and subarctic species are mostly doing well. Two species, the Japanese sea lion (Zalophus japonicus) and Caribbean monk seal (Noemonachus tropicalis) have become extinct in recent times.   Habitat Seals are found from polar to tropical waters. The greatest diversity and abundance among seals and sea lions are found at temperate and polar latitudes. Only three phocid species- all of the monk seals- are tropical and they are all either highly endangered or, in two cases, extinct. The fur seals are also found in the tropics, but their absolute abundance is low.   The most abundant pinniped is the crabeater seal, which lives in the Antarctic pack ice; the ringed seal in the Arctic is also quite abundant, with numbers in the millions.  In the U.S., the most well-known (and watched) concentrations of seals are in California and New England. Diet The diet of seals is varied depending on the species, but most eat primarily fish and squid. Seals find prey by detecting prey vibrations using their whiskers (vibrissae).   Seals and sea lions are mostly fish-eaters, although most of the species also eat squid, mollusks, crustaceans, marine worms, sea birds, and other seals. The ones that eat mostly fish specialize in oil-bearing species like eels, herrings, and anchovies because they swim in shoals and are easy to catch, and are good energy sources.   Crabeater seals feed almost entirely on Antarctic krill, while sea lions eat sea birds and Antarctic fur seals are fond of penguins. Image Source/Getty Images Behavior Seals can dive deeply and for extended periods (up to 2 hours for some species) because they have a higher concentration of hemoglobin in their blood and their large amounts of myoglobin in their muscles (both hemoglobin and myoglobin are oxygen-carrying compounds). When diving or swimming, they store oxygen in their blood and muscles and dive for longer periods than humans can. Like cetaceans, they conserve oxygen when diving by restricting blood flow to only vital organs and slowing their heart rates by about 50 percent to 80 percent. In particular, elephant seals exhibit tremendous stamina while diving for their food. Each elephant seal dive averages about 30 minutes in length, with only a couple of minutes between dives, and they have been seen maintaining that schedule for months on end. Elephant seals can dive up to 4,900 feet deep and stay down as long as two hours. One study of northern elephant seals showed that their heart rates dropped from a resting rate at the waters surface of 112 beats per minute, to 20–50 beats per minute when diving. Pinnipeds produce a variety of sounds, both in air and water. Many of the sounds are apparently individual recognition or reproductive displays, but some have been taught to learn human phrases. The most famous is a captive male harbor seal at the New England Aquarium named Hoover (1971–1985). Hoover was trained to produce a variety of phrases in English, such as Hey! Hey! Come over here! with a noticeable New England accent. Although little is known about sound production and acoustic communications as of yet, seals, sea lions, and walruses do have some voluntary control over their sound emissions, perhaps related to their ability to adapt to diving. In polar environments, seals restrict blood flow to their skin surface to keep from releasing internal body heat to the ice and freezing water. In warm environments, the reverse is true. Blood is sent toward the extremities, allowing heat to release into the environment and letting the seal cool its internal temperature. Reproduction and Offspring Because of their highly developed insulating fur- polar seals and sea lions must regulate their body temperatures between 96.8–100.4 degrees Fahrenheit (36–38 Celsius) in frigid waters- they must give birth on land or ice and remain there until the pups have built up enough insulation to withstand the cold temperatures. In many cases, mother seals must be separated from their foraging grounds to take care of their offspring: if they can locate on ice, they can still feed and not abandon the pups, but on land, in groups called rookeries, they must limit their lactation periods so they can go without eating for a period of four or five days. Once the pups have been born, there is a postpartum estrus period, and most females are mated within a few days of the last birth. Mating takes place at the rookeries, and the males exercise extreme polygyny in these dense aggregations, with one male fertilizing many females. In most seals and sea lions, gestation lasts just under a year. It takes between three and six years for pups to reach sexual maturity; females produce only one pup a year, and only about 75 percent survive. Female seals and sea lions live between 20 and 40 years. John Borthwick/Getty Images  Ã‚   Threats Natural predators of seals include sharks, orcas (killer whale), and polar bears. Seals have long been commercially hunted for their pelts, meat, and blubber. The Caribbean monk seal was hunted to extinction, with the last record reported in 1952. Human threats to seals include pollution (e.g., oil spills, industrial pollutants, and competition for prey with humans). Conservation Status Today, all pinnipeds are protected by the Marine Mammal Protection Act (MMPA) in the U.S. and there are several species protected under the Endangered Species Act (e.g., Steller sea lion, Hawaiian monk seal.) Threatened species include the Guadalupe fur seal (Arctocephalus townsendi) and the Steller sea lion (Eumetopias jubatus, near threatened). Endangered species include the Galapagos sea lion (Zalophus wollebaeki), Australian sea lion (Neophoca cinerea), New Zealand sea lion (Phocarctos hookeri) Galapagos fur seal (Arctocephalus galapagoensis); Caspian Seal (Pusa caspica), Mediterranean monk seal (Monachus monachus), and Hawaiian monk seal (M. schauinslandi). Sources Boyd, I. L. Seals. Encyclopedia of Ocean Sciences (Third Edition). Eds. Cochran, J. Kirk, Henry J. Bokuniewicz and Patricia L. Yager. Oxford: Academic Press, 2019. 634–40. Print.Braje, Todd J., and Torben C. Rick, eds. Human Impacts on Seals, Sea Lions, and Sea Otters: Integrating Archaeology and Ecology in the Northeast Pacific. Berkeley: University of California Press, 2011. Print.Castellini, M. Marine Mammals: At the Intersection of Ice, Climate Change, and Human Interactions. Encyclopedia of Ocean Sciences (Third Edition). Eds. Cochran, J. Kirk, Henry J. Bokuniewicz and Patricia L. Yager. Oxford: Academic Press, 2018. 610–16. Print.Kirkwood, Roger, and Simon Goldsworth. Fur Seals and Sea Lions. Collingwood, Victoria: CSIRO Publishing, 2013.Reichmuth, Colleen, and Caroline Casey. Vocal Learning in Seals, Sea Lions, and Walruses. Current Opinion in Neurobiology 28 (2014): 66–71. Print.Riedman, Marianne. The Pinnipeds: Seals, Sea Lions, and Walruses. Berkeley: U niversity of California Press, 1990. Print. Tyack, Peter L., and Stephanie K. Adamczak. Marine Mammal Overview. Encyclopedia of Ocean Sciences (Third Edition). Eds. Cochran, J. Kirk, Henry J. Bokuniewicz and Patricia L. Yager. Oxford: Academic Press, 2019. 572–81. Print.

Telecommunications in the Caribbean essays

Telecommunications in the Caribbean essays The world has undergone a dramatic change in the last 30 years. Each day, the revolutionary changes in technology bring us closer and closer together. Surprisingly, access to information brought along by technology is replacing the importance of access to natural resources as the main determinants of the socio-economic position of nations. While studying the effect that technology is having on the world, it is good to focus on a particular region. The Caribbean has proven to be a microcosm of this world-wide phenomenon. The Caribbean is comprised of mostly small island nations with small populations that were colonized by the European powers in the late 1500s. The native people of the region are now long gone, due to the genocide that happened to accompany the colonization process. Since then, many ethnic groups have made their way to the Caribbean. Groups such as Africans, Chinese, East Indians, and Javanese occupy the islands. In addition to this, English, French, Dutch, and Spanish are the official languages in various countries throughout the region. Such an assortment of ethnic groups and languages creates a region rich in customs and traditions, a factor that can often hinder development. Although the Caribbean is not a rich or heavily populated region, it is still a major Telecommunications Market. Contrary to popular belief, many countries in the Caribbean have Telecommunication infrastructures that are as advanced as those in the rest of the world. Much of this is due to the proximity to North America. However, the most important reason for the Caribbean being a major telecom market is the importance of the tourism industry to the economies of the Caribbean countries. In contrast to this, the poor throughout the Caribbean do not have access to telephones, let alone their own lines. Thus, the major challenge has been to balance the demands of the business sector with those of ordinary citizens in desperate need of...

Individual Assignment Essay Example | Topics and Well Written Essays - 1250 words - 1

Individual Assignment - Essay Example Based on the fact that the contract was worth $6 million and there was a possibility of obtaining a larger CRM contract from the company after completion of the contract it was in the company’s best interest to resolve the situation by negotiating directly with the client. A lawsuit at this moment would bring unnecessary legal fees and it would eliminate the possibility of retaining the client in the long run. There were four primary points that led to the dispute. The list below shows a summary of the reasons for the standoff. In round one of the simulation I was given five legal solutions to choose from. The decisions were the basis of an ongoing negotiation between both parties. The five legal solutions available were: a) Breach of contract under substantial performance of contract; b) Breach of contract under internal escalation procedure for disputes; c) breach of contract under requirement change; d) Breach of contract under communication and recording; e) Breach of contract under intellectual property rights. The simulation indicated that I was supposed to pick three alternatives. I choose options b, c, and d. In the scenario one of the claims was that C-S had been asking for too many changes without considering the timeline and budget implications of the change. The constant changes made it impossible for the firm to comply with the contract on a timely manner. I chose the option of breach of contract under internal escalation for procedures because the information in the simulation indicated there were no cons associated with this option. Also C-S had already indicated that rescission of contract violated contractual obligations. Option d was chosen because the change in management structure at C-S had hurt the communication process which caused delays. Due to internal escalation that occurred at C-S I was confident the client would reconsider their stance. Span Systems

Advocacy letter about sexual orientation Essay Example | Topics and Well Written Essays - 750 words

Advocacy letter about sexual orientation - Essay Example Amongst this number included 17.5% of the students who were personal victims of the situation. We realize that part of what causes this problem is the fact that there is no adequate research or funding that can aid research on the sexual orientation area. There is, however, lots of talking and discussions about sexual orientation that goes on around the country. Though it might not be open to us to fully know the medical or scientific foundations that results to the sexual orientation of an individual, our system is already handling the discussion in such a way that its impact is quite vivid. Some of the students reactions I school can be seen as many of them do not feel safe due to their sexual orientation. This can be explained by the results of the survey on school safety that was carried out by an organization known as GLSEN in 2013. In this survey, it was proved that sexual orientation as a factor contributed to 55.5% of the LGBT students feeling unsafe at school. The same surve y found out that, 37.8% of the students were felt unsafe at school due to their gender expression. It is vividly clear that sexual orientation as an important concern to students is not being addressed in schools even as people continue to increase their awareness and education with regards to sex. This is a notion that needs to change. It is understood that until now, this issue has not been addressed satisfactorily. There have been many misunderstandings about the issue that has made the topic extremely sensitive. The major source of misunderstandings is the national religious variations we have in the country. Quoting from the U.S Constitution, we have two fundamental principles that apply to all the public schools. The first amendment is about the separating church and the state and protection of the freedom of speech. The fourteenth

Time value of money Research Paper Example | Topics and Well Written Essays - 750 words

Time value of money - Research Paper Example One can settle for less return if he or she is certain about the offered return in a given period of time. At times, when the company is highly reputed and has never defaulted in the past in its history; investor will agree to accept slightly less return for the reason of assured returns in a given time frame. Against this, if the company’s history indicates that it does not pay in time or has defaulted in payments to its debtors then it will force us to ask for the higher return to cover up the associated risk with our capital or delayed payments. Of course, it is subjective and based on the individual judgment; nevertheless, basic framework in applying the theory about risk and returns remain the same everywhere. Besides, other prevailing parameters such as inflation, interest rates in the market do influence about our decision to settle for appropriate returns. For example, if inflation is ruling at 5 % per annum, any return less than that simply means that our money is dep reciating. In the same scenario, if the yearly return received is six percent, it means that net of inflation our real return is only 1 percent. Above concepts are being applied in answering the questions of this paper. Answer 1) Current inflation rate in U.S is about 2.25 percent and term interest rates for the deposit of one year can be taken as around 1 percent. If the bond belongs to Nvidia Corporation, the company’s financials do not pose any near term threats so far the risk factor is considered. With simple thumb rule, I will not pay more than $1850 for the bond of this company that will fetch me around $2,000 after a year from this company. (Future value, FinanceProfessor.com) Answer 2. Cash flow (maturity value) available in this case is $2,000 The time period is one year for which it is required to find the present value, which is given as PV = CF * 1/ (1+r)t PV= 1,850 CF= 2,000 t=1, putting these values in the equation, it can be solved for r (discount rate), which will give us applicable discount rate. 1+r= CF/PV 1+r=2000/1850=1.08 or r=0.08 Hence discount rate for this bond is 8 percent. (Present Value, FinanceProfessor.com) Answer 3. As competitors to Nvidia, two companies selected are Siemens and AMD. Siemens is well established and financially very sound and deals in host of products. I would consider Siemens bonds highly liquid and secured. Based on the track record of Siemens, I would agree to buy bonds from Siemens by paying slightly higher price in comparison to Nvidia. There is absolutely no chance of Siemens’ failing on the redemption payments of bonds issued. All other things remaining the same, risk factor being nil, I would agree to buy these bonds by paying more in comparison to SLP Company Nvidia. In short, I will agree to slightly less than 8 percent of return while investing with Siemens. However, the same cannot be said for AMD as performance of the company is highly fluctuating in the market quarter after quarter. A MD’s operations are in the limited field and the company certainly carries some risk of failing in its payments for the bond. To cover up my risk of losing the capital or getting the delayed payments, I would certainly look for higher returns than normal. It means that I need to buy the bonds of AMD at

Modern Stages Essay Example | Topics and Well Written Essays - 2250 words

Modern Stages - Essay Example The Glass Menagerie also represents a multitude of themes, although it predates the ‘kitchen sink’ concept and does not share the same number of social themes that are represented in A Taste of Honey. In The Glass Menagerie, the mother, Amanda, is developed through the memory of Tom and represents his point of view on her character. He saw his mother as a smothering influence, a woman who allowed self-deceit to rule the decisions that she made about her children. In A Taste of Honey, Helen is a woman who neglects her daughter, her actions ruled by her own desires over the welfare of her child. Both women represent a disconnection from both the world and from their children. Amanda remembers her life in her youth and is disconnected to the realities of the life that she and her children are living, while Helen also seeks her youth but does so at the expense of her child. Both mothers end up losing their children through their inability to connect to their role as mother i n regard to nurturing the potential of their children rather than pampering the memories of their own youth. In creating mothers that were disconnected from their children, the dynamic of crossing into independence, for better or worse, and adulthood was explored within each play. The Glass Menagerie The story of The Glass Menagerie (1944), written by Tennessee Williams, is a story that supports a complexity of themes that are supported by the ideas of family. Family is the core of the play, the work discussing the dynamics that both plague and connect individuals. The play has only four characters. Tom is the protagonist with his memory of the events defining the perspective from which they are related. Therefore, it must be remembered that each character is defined by his memory of them, rather than by their own motivations. His mother is characterized in the way in which he perceived her, just as his sister is defined by his memory. Therefore, his mother’s abrasiveness mig ht be relevant to his experience of her rather than encompassing the whole truth of her existence. Just as he remembers her sister as singularly focused on the glass animals, this may have been her experience with his sister, not understanding other aspects of her life. The story revolves around an event where he brings home a man to visit his sister, Laura. The hope of his mother, Amanda, is that the man will be attracted to Laura, thus giving her a future. Laura has a bad foot, which can be seen as a symbol of her vulnerability. The way in which her character is presented suggests a mental vulnerability as well. As the play progresses, it is revealed that Jim, the man Tom has brought home, is actually engaged to another woman and while he is kind to Laura, he is not in a position to engage in a relationship. The argument between Amanda and Tom over the event seems to be the last catalyst to Tom leaving his sister and his mother to their own devices. This is a haunting memory, one that reflects regret, relief, and is laced with a sense of both hope and hopelessness (Williams 1999). A Taste of Honey A Taste of Honey (1958) was written by an eighteen year old girl who was expressing a very sophisticated collection of themes within her work. Shelagh Delaney writes a story of that also reflects the dynamics of family and the central theme of the play revolves around the differences between reality and the dream of reality. Themes of race, gender, sexual orientation, familial devotion, and class are all explored within the framework of the

Globlization Essay Example | Topics and Well Written Essays - 2250 words

Globlization - Essay Example Introduction In order to understand this topic, this article will start by defining the key concepts that are involved. One of these concepts is the term globalization. According to Harvard Professors Robert Keohane and Joseph Nye, understanding this term requires one to grasp another important term known as globalism (Bauman, 1998). Globalism is seen as a state of the world networks involving interdependence of multi-continental distances (Bisley, 2007). This interconnection involves the movement of information and ideas, people and force, as well as, capital and goods. It also involves the environment and biologically relevant substances such as acid rain or pathogens. Therefore, when defining globalization, Keohane and Nye state that it is the complete integration of globalism at a deeper or geographical level (Holton 1998). Globalization and Education in the Developing World: Case Study of Saudi Arabia The world as it is currently has attained the tag of being a ‘global vil lage’ (Holton 1998). This means that there is a higher level of interaction between different countries today than was the case 100 years ago. Currently, the issues affecting one country can easily be replicated in another country as witnessed in the spread of the Arab Spring from Tunisia all the way to Syria. Technology has ensured that there is faster seamless communication between people in two very distant regions. This way, a person in Africa can communicate one-on-one with a relative in France. In this way, the world as is has been opened up to more scrutiny and so has the formats of education all over the world (Bisley, 2007). Saudi Arabia is a state renown for its oil wealth and the fact that it is reined over by a monarch. The system of education in this country like in many developing countries has a lot of emphasis on university education (Ramady, 2010). This means that white collar jobs are mainly preserved for the university elite in the country. As a result, thi s makes technical studies appeal less as they are associated with failures. As stated above, this is a common occurrence around the developing world, and, as a result, the technical training institutions do not get as much funding as the universities. Saudi Arabia has not many natural resources apart from oil (Ramady, 2010). This means that it has to depend on other forms of resources to allow it to move ahead. One of these resources is the human manpower (Ramady, 2010). The most important avenues for creating this manpower are through education. According to organizations that promote knowledge based economies such as the World Bank, higher education has a direct correlation with the country’s productivity (Ramady, 2010). This means that higher education has a direct impact on the skill level of people in a country, which in turn affects the quality of work that they produce. There is also the additional aspect of the remuneration that these people receive, which further tra nslates to an improved standard of living. As seen above, technical education is not one that draws a lot of the populace in the country as it has a low remuneration. This is a worrying trend for a country like Saudi Arabia because being a developing country; it requires a lot of people trained in the technical studies. This means that there is a need to look at this matter. It is important that the government encourage people to take these courses by popularizing them.

Modern Stages Essay Example | Topics and Well Written Essays - 2250 words

Modern Stages - Essay Example The Glass Menagerie also represents a multitude of themes, although it predates the ‘kitchen sink’ concept and does not share the same number of social themes that are represented in A Taste of Honey. In The Glass Menagerie, the mother, Amanda, is developed through the memory of Tom and represents his point of view on her character. He saw his mother as a smothering influence, a woman who allowed self-deceit to rule the decisions that she made about her children. In A Taste of Honey, Helen is a woman who neglects her daughter, her actions ruled by her own desires over the welfare of her child. Both women represent a disconnection from both the world and from their children. Amanda remembers her life in her youth and is disconnected to the realities of the life that she and her children are living, while Helen also seeks her youth but does so at the expense of her child. Both mothers end up losing their children through their inability to connect to their role as mother i n regard to nurturing the potential of their children rather than pampering the memories of their own youth. In creating mothers that were disconnected from their children, the dynamic of crossing into independence, for better or worse, and adulthood was explored within each play. The Glass Menagerie The story of The Glass Menagerie (1944), written by Tennessee Williams, is a story that supports a complexity of themes that are supported by the ideas of family. Family is the core of the play, the work discussing the dynamics that both plague and connect individuals. The play has only four characters. Tom is the protagonist with his memory of the events defining the perspective from which they are related. Therefore, it must be remembered that each character is defined by his memory of them, rather than by their own motivations. His mother is characterized in the way in which he perceived her, just as his sister is defined by his memory. Therefore, his mother’s abrasiveness mig ht be relevant to his experience of her rather than encompassing the whole truth of her existence. Just as he remembers her sister as singularly focused on the glass animals, this may have been her experience with his sister, not understanding other aspects of her life. The story revolves around an event where he brings home a man to visit his sister, Laura. The hope of his mother, Amanda, is that the man will be attracted to Laura, thus giving her a future. Laura has a bad foot, which can be seen as a symbol of her vulnerability. The way in which her character is presented suggests a mental vulnerability as well. As the play progresses, it is revealed that Jim, the man Tom has brought home, is actually engaged to another woman and while he is kind to Laura, he is not in a position to engage in a relationship. The argument between Amanda and Tom over the event seems to be the last catalyst to Tom leaving his sister and his mother to their own devices. This is a haunting memory, one that reflects regret, relief, and is laced with a sense of both hope and hopelessness (Williams 1999). A Taste of Honey A Taste of Honey (1958) was written by an eighteen year old girl who was expressing a very sophisticated collection of themes within her work. Shelagh Delaney writes a story of that also reflects the dynamics of family and the central theme of the play revolves around the differences between reality and the dream of reality. Themes of race, gender, sexual orientation, familial devotion, and class are all explored within the framework of the

Cementless Fixation of Total Hip Replacements Essay

Cementless Fixation of Total Hip Replacements - Essay Example Literature supporting or refuting both philosophies is available. Cemented fixation - Cemented stems have a variety of smooth, textured, and coated surfaces that bond to a layer of cement. These stems occupy 80% of the medullary canal to allow for a mantle (ie, cement-occupied space). A centralizer is added to many cemented stems to keep the stem in the center of the canal, which provides a uniform space for the cement around the implant. (Canale, 1998, 314). Differing philosophies guide surgeons in selecting cemented femoral implants for patients. There was a trend in the 1980s to use more cementless implants; in the 1990s, cemented implants regained popularity. Currently, surgeons are favoring cementless techniques again as a result of proven extended service life in long-term outcome studies on porous implants. Cement is indicated when a patient's bone quality cannot be stabilized satisfactorily with a cement-less implant (Wheeless', 2003). The basic principle of uncemented fixation is that the initial stability of an implant is achieved by mechanical interlock and initial apposition of implant surfaces to host bone is converted to long-term stability by the ingrowth/ongrowth of a stable biological interface (Bloebaum etal, 1997) Cementless or pressfit fixation - with use of cemented impant systems, problems related to cement fixation, including loosening, bone loss, and signs of fragmented cement, were identified. Research efforts led to fixation without cement by using femoral stems tightly fit into the canal. This technique often is referred to as pressfit. Pressfit femoral stems have a porous surface that allows bone ingrowth into the stem, referred to as biological fixation (Hoffmann, 2000). One of the coating systems for implants is calcium phosphate-based material called calcium hydroxyapatite. Hydroxyapatite is the inorganic phase of bone, is inherently compatible with the body, and has been shown to promote bone growth and enhance implant fixation (Geesink etal, 1987). It is used as an additional way to bond bone biologically to a stem and cup. These stems provide immediate implant stability and fit tightly to the endosteal cavity of the proximal femur. There are four basic shapes for press-fit femoral stems-anatomical (ie, bowed), modular, straight, and tapered (Canale, 1998, 315, Hoffmann etal, 2000). The anatomical stem has experienced increased popularity and market growth as a result of excellent long-term results documented in the literature (Hoffmann etal, 2000). The porous coated stem previously was indicated for use in active, young patients and for revision of cemented hips, but now surgeons are using pressfit stems in patients of all ages who have good bone stock (S Rapp, 2003, 14). Physiology of the cementless system Micromotion of 20 m or less at the bone-implant interface will create an environment in which stable bone ingrowth can occur, that motions of 40 m lead to less stable interfaces, and that motions of 150 mm will prevent this

Judging Words Not Fidgets Essay Example for Free

Judging Words Not Fidgets Essay â€Å"Judging Honesty by Words, Not Fidgets† is a short essay written by Benedict Carey. It explores how in police interrogations, interviewers can use words to decide if people are lying more than looking at their physical movements. Traditionally, police have used lie detector tests and underhanded techniques to force suspects and witnesses to give confessions. This author cites research and experiments to show that analyzing how a witness communicates can be indicative of his/her honesty. This essay explains how different, less aggressive interrogating techniques, can be more helpful than forceful types of questioning. It points out that sometimes suspects can learn to â€Å"cheat† on a polygraph and that liars may not have different body language than those that are being truthful. This essay has many strengths. One is the author’s use of entertaining phrases and questions at the beginning, which helps to engage the reader. Anybody that has watched Law and Order or CSI has seen the type of interrogation where the police lie to the suspects to get them to confess. The opening makes a connection with the reader in an entertaining way and that is a strength of this essay. There are also many examples of research that have been used to tell if people are lying; this indicates that the writer is informed and makes him credible. The reader has confidence in the author’s information. This essay is short and easy to read, which is a huge positive. When essays are long, they tend to take the reader out of the mindset needed to maintain interest. The author points out how police are altering their techniques to make use of this research, so the application aspect of this research is interesting. While there are many strengths to this essay, there are a few weaknesses as well. The biggest weakness is in the amount of time spent reading names of psychologists and researchers that have studied body language, interview techniques, and lying. While it is understood that it is a requirement that researchers’ names be cited, it takes away from the entertainment value and becomes more like reading a research paper and can be boring in those sections. Another minor weakness is the mention of the TV show Columbo at the end of the essay. While the character in that show may have used some of the techniques from the research, many contemporary readers may not be familiar with him. â€Å"Judging Honesty by Words, Not Fidgets† is a short, easy read. It is also very interesting since most readers have seen police interviews on TV and in the movies and are familiar with some of the techniques fictitious officers use. Also, with all of the reality shows on TV today, many readers may have seen real interviews taking place. With readers having some knowledge of the topic, it is very interesting. While there are a few minor weaknesses of this essay, overall, it is entertaining and engages the audience. Works Cited Carey, Benedict. Judging Honesty by Words, Not Fidgets. 2009. The McGraw-Hill Reader: Issues across the Disciplines. Ed. Gilbert H. Mueller. 11th ed. New York: McGraw-Hill, 2010. 9-12. Print.