Wednesday, November 27, 2019
Teddy Roosevelt essays
Teddy Roosevelt essays Theodore Roosevelt, the second of four children, was born in New York, New York on October 27, 1858. He was part Dutch, English, Welsh, Scottish, Irish, French, and German. Because of Roosevelts poor health, he suffered from asthma and defective vision. He had great energy, curiosity, and determination like his father. Teedie as his family would call him, loved books and the outdoors. He combined these interests into nature study. When he was ten and again when he was fourteen, Teedie went with his family on yearlong trips to Europe and the Middle East. His father built a gymnasium in his house so he could exercise regularly. His father said that he would need a strong body to give his mind a chance to develop fully. Over time, Roosevelt overcame his asthma and built up unusual physical strength. On October 27, 1880, Roosevelt married Alice Hathaway. They were a happily married couple for about 3 years until she died on February 13, 1884, following a baby girl the next day named, Alice Roosevelts mother died on the same day as Theodores wife. Baby Alice survived, and was subsequently married in a lavish White House ceremony to Nicholas Longworth. Meanwhile, Roosevelt married his childhood sweetheart, Edith Kermit Carow, in London. She was an intelligent, sensitive and cultivated woman. Resignedly, she accepted many of her husbands most disruptive decisions, such as his break with the Republican Party in 1912. She gave four sons-Theodore, Jr.; Archibals; Quentin; and a daughrt Ethel. The energetic kids in the Roosevelt family were the liveliest group of children to live in the White House. September 14, 1901 Roosevelt took the oath of office at Buffalo and became the twenty-sixth President of the United States. At age 42, he was the youngest man to hold that office. In May of 1902, Crater Lake National Park was established. Other National Parks established by Roosevelt are Windy Cave National Pa...
Saturday, November 23, 2019
The Evolution of the Spinning Wheel
The Evolution of the Spinning Wheel The spinning wheel is an ancient invention used to transform various plant and animal fibers into thread or yarn, which are subsequently woven into cloth on a loom. No one knows for certain when the first spinning wheel was invented. Historians have come up with several theories. In Ancient History of the Spinning Wheel, German author and science historian Franz Maria Feldhaus traces the origins of the spinning wheel back to ancient Egypt, however, other historical documentation suggests that it debuted in India between 500 and 1000 A.D., while other evidence cites China as the point of origin. For those who accept the latter theory, the belief is that the technology migrated from China to Iran, and then from Iran to India, and finally, from India to Europe during the late Middle Ages and earlyà Renaissance. The Evolution of Spinning Technology A distaff, a stick or spindle upon which wool,à flax or other fibers are spun by hand is held horizontally in a frame and turned by a wheel-driven belt. Generally, the distaff was held in the left hand, while the wheel belt was slowly turned by the right. Evidence of early handheld spindles, from which spinning wheels would eventually evolve, have been found in Middle Eastern excavation sites that date back as far as 5000 BCE. Distaffs were used to create threads for the fabrics in which Egyptian mummies were wrapped, and were also the primary tools for spinning ropes and the material from which ship sails were constructed. Since spinning by hand was time-consuming and best-suited to small-scale production, finding a way to mechanize the processà was a natural progression. Although it would be some time before the technology reached Europe, by the 14th century, the Chinese had come up with water-powered spinning wheels. Around the year 1533, a spinning wheel featuring a stationary vertical rod and bobbin mechanism with the addition of a foot pedal debuted in the Saxony region of Germany. Foot power freed up the hands for spinning, making the process much faster. The flyer, which twisted the yarn as it was spun was another 16th-century advancement that increased the rate of yarn and thread production dramatically. The Industrialization of the Spinning Wheel At the dawn of the 18th century, the technology to produce thread and yarn was falling behind the ever-increasing demands for plentiful, high-quality textiles. Resulting yarn shortages led to an era of innovation that would eventually culminate in the mechanization of the spinning process. With British carpenter/weaver James Hargreaves 1764 invention of the spinning jenny, a hand-powered device featuring multiple spools, spinning became industrialized for the first time. Although a vast improvement over its hand-powered predecessors, the thread spun by Hargreaves invention wasnt of the best quality. Further improvements came via inventorsà Richard Arkwright,à inventor of the water frame and Samuel Crompton, whose spinning mule incorporated both water frame and spinning jenny technology. The improved machines produced yarn and thread that was much stronger, finer, and of higher quality than that produced on the spinning jenny. Output was greatly increased as well, ushering in the birth of theà factory system. Spinning Wheel in Myth and Folklore The spinning wheel trope has been a popular plot device in folklore for thousands of years. Spinning is cited in the Bible and also makes its appearance in Greco-Roman mythology, as well as various folktales throughout Europe and Asia. Sleeping Beauty The earliest version of Sleeping Beauty appearance made its appearance in a French work, Perceforest (Le Roman de Perceforest) written sometime betweenà 1330 and 1345. The story was adapted in the collected tales of the Brothers Grimm but is best known as a popular animated film from the studio of Walt Disney. In the story, a king and queen invite seven good fairies to be the godmothers of their infant princess. At the christening, the fairies are fà ªted by the king and queen, but unfortunately, there was one fairy who, through an oversight, never got an invitation but shows up anyway. Six of the other seven fairies have already bestowed gifts of beauty, wit, grace, dance, song, and goodness on the baby girl. Out of spite, the miffed fairy puts an evil spell on the princess: The girl is to die on her 16th birthday by pricking her finger on a poisoned spindle. While the seventh fairy canââ¬â¢t lift the curse, with her gift, she can lighten it. Instead of dying, the girl will sleep for a hundred years- until sheââ¬â¢s awakened by the kiss of a prince. In some versions, the king and queen hide their daughter in the forest and change her name, hoping that the curse wonââ¬â¢t find her. In others, the king orders every spinning wheel and spindle in the kingdom be destroyed, but on the day of her birthday, the princess happens on an old woman (the evil fairy in disguise), spinning away at her wheel. The princess, who has never seen a spinning wheel, asks to try it, and of course, pricks her finger and falls into an enchanted slumber. As time passes, a great thorny forest grows up around the castle where the girl lies sleeping but eventually, the handsome prince arrives and braves the briars, finally awakening her with his kiss. Arachne and Athena (Minerva) There are several versions of the cautionary tale of Arachne in Greek and Roman mythology. In the one told in Ovidââ¬â¢s Metamorphosis, Arachne was a talented spinner and weaver who boasted that her skills exceeded those of the goddess Athena (Minerva to the Romans). Hearing the boast, the goddess challenged her mortal rival to a weaving contest. Athenas work pictured four tableaux of mortals being punished for daring to think they equaled or surpassed the gods, while Arachnes showed gods abusing their powers. Sadly for Arachne, her work was not only superior to Athenaââ¬â¢s, the theme sheââ¬â¢d chosen only added insult to injury. Enraged, the goddess tore her competitorââ¬â¢s work to shreds and beat her about the head. In desolation, Arachne hanged herself. But the goddess wasnââ¬â¢t through with her yet. Live on then, and yet hang, condemned one,â⬠Athena said, ââ¬Å"but, lest you are careless in future, this same condition is declared, in punishment, against your descendants, to the last generation! After pronouncing her curse, Athena sprinkled Arachnes body with the juice of Hecates herb, ââ¬Å"and immediately at the touch of this dark poison, Arachnes hair fell out. With it went her nose and ears, her head shrank to the smallest size, and her whole body became tiny. Her slender fingers stuck to her sides as legs, the rest is belly, from which she still spins a thread, and, as a spider, weaves her ancient web. Rumplestiltskin This fairytale of German origin was collected by theà Brothers Grimmà for the 1812 edition ofà their Childrens and Household Tales. The story revolves around a social-climbing miller who tries to impress the king by telling him his daughter can spin straw into gold- which of course, she cant. The king locks the girl in a tower with a roomful of straw and orders her to spin it into gold by the next morning- or else face a harsh punishment (either decapitation or lifelong imprisonment in a dungeon, depending on the version). The girl is at her wits end and terrified. Hearing her cries, a tiny demon appears and tells her he will do whats been asked of her in exchange for a trade. She gives him her necklace and by morning, the straw has been spun into gold. But the king still isnt satisfied. He takes the girl to a larger room filled with straw and commands her to spin it into gold by the next morning, again or else. The imp comes back and this time the girl gives him her ring in trade for his work. The following morning, the king is impressed but still not satisfied. He takes the girl to an enormous room filled with straw and tells her if she can spin it into gold before morning, he will marry her- if not, she can rot in the dungeon for the rest of her days. When the demon arrives, she has nothing left to trade but the demon comes up with a plan. Hell spin the straw into gold- in exchange for her first-born child. Reluctantly, the girl consents. A year later, she and the king are happily married and she has given birth to a son. The imp returns to claim the baby. Now a wealthy queen, the girl begs him to leave the baby and take all her worldly goods but he refuses. The queen is so distraught, he makes her a bargain: If she can guess his name he will leave the baby. He gives her three days. Since no one knows his name (other than himself), he figures its a done deal. After failing to learn his name and exhausting as many guesses as she can come up with over the course of two days, the queen flees the castle and runs into the woods in despair. Eventually, she happens on a small cottage where she chances to hear its occupant- none other than the awful imp- singing: Tonight, tonight, my plans I make, tomorrow tomorrow, the baby I take. The queen will never win the game, for Rumpelstiltskin is my name. Armed with the knowledge, the queen returns to the castle. When the imp shows up the next day to take the baby, she calls out the evil tricksters name, Rumpelstiltskin! In a fury, he disappears, never to be seen again (in some versions, he gets so mad he actually explodes; in others, he drives his foot into the ground in a fit of rage and a chasm opens up and swallows him).
Thursday, November 21, 2019
Meteorological Satellites Systems Essay Example | Topics and Well Written Essays - 2750 words
Meteorological Satellites Systems - Essay Example These characteristics formed the basis on which most of the theoreticians worked on to provide information about the atmosphere. However, these characteristics ware not enough to provide more precise information about the atmosphere yet such information was of great significance in predicting meteorological parameters and conditions. The introduction of computers and mathematical models resulted in an increased demand for observational data that was adequately sampled and reliable both in time and space. This was due to the fact that the atmosphere forecast models depended strongly on the initial atmosphere state that had been reached at through assumptions. Better data was needed as even after this initial information, there were still many areas that were left without atmospheric soundings that were conventional. Before the discovery of weather satellites, the weathermen work was almost impossible as they were handicapped with very limited information before them about the atmosphe res state at any time (Kidder and VonderHarr, 1995). Even after the world war period when observational networks were expanded by most of the meteorological services from different nations, the global vast land areas that were sparsely populated as well as the large areas covered by oceans remained virtually blank with regards to conventional meteorological observations. The introduction of metrological satellites was a major step towards overcoming all these deficiencies. Satellite imagery has since its discovery proved to be a vital information source in forecasting operations. The images serve various important functions in the metrological field including; a tool used for analysis mostly when dealing with data from the tropics, a vital aid during forecast conducted in short periods before rainfall, cloud, and floods, serves as an input to weather predictionà models mostly dealing with numbers so as to define initial conditions, and used to monitor forecast models.
Tuesday, November 19, 2019
Residual RFIDs - are these a threat Essay Example | Topics and Well Written Essays - 250 words
Residual RFIDs - are these a threat - Essay Example This information has adverse threats on the person that buy the products containing these tags because the information can be used to cause harm to them when it lands in wrong hands (Cazier, Wilson and Medlin 2007). Some of these threats are outlined below. The RFID tags can be used by non-authorized personnel to track and retrieve personal information of people without their knowledge using objects containing these tags. The assessment of their belonging may lead to access to these belongings without the consent of the owner (Spiekermann and Ziekow 2005). The use of mining of data can help acquire information from RFID tags. This information can be used to retrieve and identify the social links that exist between people. This information can be used by security agents to track criminals, but it can also be used by criminal to cause harm to the people (Spiekermann and Ziekow 2005). RFID tags can also cause technology paternalism. This is the fear in people who have objects that contain these tags over the lack of control of machinesââ¬â¢ action that cannot be overridden. This can cause punishment to owners of these objects thus intruding on the peoples live. RFID residual tags have their benefits, but the presence of threats on the lives of consumers cannot be overruled. Addressing these threats will ensure that consumers are comfortable buying products containing these tags (Gao, Xiang,Wang, Shen, Huang and Song 2004). Gao, X., Z. Xiang, H. Wang, J. Shen, J. Huang, and S. Song. (2004). ââ¬Å"An Approach to Security and Privacy of RFID System for Supply Chain,â⬠Proceedings of the Conference on IEEE International, September 2004, pp.
Sunday, November 17, 2019
The arts and knowledge Essay Example for Free
The arts and knowledge Essay What makes the world more beautiful and peace or when imagination set beyond reason and other stress things? Well, art could be an answer in this situation and it is useful in some areas that science cannot define. To a slightly degree that truth is found in art. However the relationship between truth and art sound to be contradict to each other, but there is still a truth in art which is very important to nature. Art and truth have always been separate as two different areas of knowledge in mutual incomprehension. Whatever the relationship between the arts and knowledge, there seems to be a big difference between the contribution made by the arts to our understanding of the world and that made by the sciences (Theory of Knowledge p. 350). If we think carefully and define the definition of truth and art, we can easily seek the big differences. Truth as we know, is claim to be real, logic and reasonable with supported evidence. Therefore truth is also objective statement since every agrees for it to be true, some sciences claim could be a good example of truth. On the other hand, art appeal more to our imagination and emotion which runs out the border of reason. With some statement about art, some people may think art is then useless if it doesnt have any truth but only waste of junk. However, art can be subjective. It could appeal to individuals emotions and expression. A drawing from someone can express the artists emotion, the usage of color and lines stroke could represent the artist emotion. Still when spectators spotted the drawing they may infer only little amount of truth. As art can be subjective, the audience may think about the drawing in any kind of feelings they see from their perspective. For example, a drawing of a shadow of the man with a circle. The audience may think about the drawing in any kind of forms that appeal to them, such as a man and a sun or a man with a soccer ball. There are no proofs that either one is right or wrong, there is no one specific truth from the drawing. As the quote a picture may describe thousand words, there are many perspectives that you can observe from the picture and they are expressed in more allusive and intuitive forms. If we compare this to science theories, it would be totally the opposite. Two different theories are given to proof a same claim. There would be only one that is right that gives the truth about the claim. For example, 2+2 must equal 4, this truth is reasoned and supported with many evidence. The theories would contradict each other, if one in true the other would be false. However art can also be objective since artists have intention in their work, but it might not be clear as science which has practical evidence and proof in each step. Some people define art as untrue because they deal with fiction rather than fact. This would bring us to another aspect call paradox of fiction. The fact that fiction is sometimes able to reveal deep truths about human condition. While it may seem to strange that we human beings often turn to fiction in search of truth, it also seems to be true! (Theory of Knowledge p.352). This tells us a bit more how art gives truth to our experience of the world. But the truth that art gives us might be different kind of truth the science gives us. For example, arts can tell us about the nature and love which science cannot. Most of the time, truth in art comes in the form of emotion. Art gives truth in a slightly degree which mostly appeal to emotion. Art can be objective or subjective and if we relate to truth which must be objective we may seek the difference. The intention of artist and what the audience see may be different depends on each individual perspective. If we compare it to truth in science which is really important to our life, art would consist truth in a small amount. However it is still important.
Thursday, November 14, 2019
John Huston the Dead Essay -- essays research papers
à à à à à The film, The Dead, directed by John Houston, is based on a short story that takes place in Dublin, Ireland around 1904. In Ireland at this time there is much conflict between the Catholics and the Protestants, whether Ireland should be part of Great Britain or not. This narrative is intended to show life in Ireland at this time as real as possible. The music during the story is a constant reminder of the mood of the film; the music is generally sad, but when needed it is in a happier tone. Everything about the film adds to the despair that all of the characters eventually feel at some time in the film. à à à à à The movie ends up being a very morbid film. All of the emotions from the characters make the film have a melancholy undertone....
Tuesday, November 12, 2019
How far do you agree with Dr Johnson Essay
Samuel Johnson, or Dr Johnson as he was sometimes referred as, was a great English author who made enduring contributions to English literature. Being such a distinguished and renowned author, his views on literature were and still are today, stern and well-known. However, I have views both agreeing with and opposing Dr Johnsonââ¬â¢s view that Miltonââ¬â¢s work lacks human interest. Firstly, human interest strictly speaking, is about everyday people just like us, being able to relate to a story, and possibly learn something from it and put it into practise in our own lives. The epic poem Paradise Lost concerns the Christian story of the Fall of Man, while dealing with more present topics such a marriage and politics. Miltonââ¬â¢s purpose, as stated in book I, is to ââ¬Å"justify the ways of God to men. â⬠This is a good base to start my argument on, which is that I do not agree with Dr Johnson, and believe that Miltonââ¬â¢s work does hold human interest. By involving politics and marriage into his works, this is surely of human interest, as people will be curious and inquisitive about how things worked back then, and it is therefore of human interest if people want to learn about it. Milton states the purpose of his epic poem, and it is obvious that he intended Paradise Lost to educate people about God. If anything, Paradise Lost holds universal human interest. The event in the poem concern the whole of the human race, as the single event of disobeying God and plucking a single apple has moulded the destiny of the world, and it should surely be of interest to anyone who is born into this world. People must be, and generally are, curious about how their world evolved and how it reached the state of where it is now. If people are curious about this and eager to be educated on this topic, then they may read Miltonââ¬â¢s work to learn about these events, and consequently are showing signs of human interest. Looking more in depth into Christianity, Christians believe that due to the event of Eve picking the apple, all humans are born with sin, and it is whether people choose to act on it or not that defines us. However, a big factor to consider is whether people actually believe in God or not. Atheists wouldnââ¬â¢t take any notice of this argument, let alone and interest of Miltonââ¬â¢s epic poem Paradise Lost. This is my argument agreeing with Dr Johnson and saying that Miltonââ¬â¢s work does lack human interest. To an atheist, they would take absolutely no interest in the Fall of Man, and wouldnââ¬â¢t believe anything about God and heaven. Also being literal about it, for anyone, let alone an atheist, it is hard to relate to an event that happened such a long time ago, and we only know to be true from a book and lots of believers. How do we even know that this happened? How do we even know God exists? These are all questions that are very important when answering this question. Many different theological issues are presented in the epic poem, such as fate, the introduction of sin and death into the world, as well as the nature of angels, heaven, hell and Satan. However, sin and death cannot be ignored, even by atheists, as these two issues are both around us and will happen to us in our lives. So, this means that people are able to relate to these issues in Miltonââ¬â¢s works, and therefore showing signs of human interest. Also, nowadays, we are not scared of disobeying something that will have as huge of a consequence as picking the apple did. Anything that we do today is not going to have an huge impact on the world, affecting all of its inhabitants and the world itself. So, in this sense, it is hard to relate to Miltonââ¬â¢s work, and it can be said that it does lack human interest. Another literal relation that we can have with Paradise Lost is the consequences of picking the fruit relating to God, not just the event itself. Not only did God show his mercy and temperance in their punishments, but he also displayed his love and compassion through the Son, Jesus Christ. Atheist or not, everyone learns about Christ and the Fall and it is whether you chose to believe it or not which is what makes people an atheist. In this sense, Paradise Lost does not lack human interest as it can always be related to and people are always taught about it, even if it was in the classroom and compulsory, or by their parents. The knowledge of Jesus Christ and the garden of Eden is general knowledge, and therefore must be of human interest. Also, the hard work that men and women have to endure, and the pain of giving birth for a woman are all consequences of Eve picking the apple off the tree and disobeying Godââ¬â¢s only rule. And therefore, as we all experience hard work, and the majority of women experience child birth, we can all relate to this in some way or another. So, having analysed and read through this epic poem, I am going to disagree with Dr Johnson that Miltonââ¬â¢s work lacks human interest. I think that everyone can relate to Miltonââ¬â¢s work in one way or another. You could say, that if you were not able to relate to his work, then you havent related to the story of Creation and havent learnt about God or Christ. Also, you do not need to believe in all of the Creation stories and the Garden of Eden to have related to Miltonââ¬â¢s work. Above all, Milton is a fantastically talented writer, and that alone is a reason as to why Miltonââ¬â¢s work does contain human interest. Bibliography and Webography: The Bible The Complete English Poems ââ¬â John Milton www. wikepedia. org www. sparknotes. com.
Sunday, November 10, 2019
Immaculate Perception
The stance of immaculate perception is a false one. Immaculate perception describes a pure and untainted perception, one that has no bias. Bias is acquired with experiences and teachings, both of which create expectancy, which taints perception with bias. One may argue that a newborn baby has immaculate perception, a clean slate with no expectations or sense conditioning. However, this point cannot be proved because where is the division between the experiences of the mother and the baby, or is there even a division between the two? Does the baby's formation count as an experience? With no clear answers to these questions how can immaculate perception occur in reality? This question leads to another one. What is reality and how does it relate to perception? Reality is the truth that we try to ultimately reach through perception as we sort through our sense datum. Yet, this truth can vary between people. The conclusion or truth that people search for through perception analysis can be determined by one's own needs and expectations. Though two creatures may be exposed to identical stimuli and sense datum their inferences achieved through perception will vary greatly because each has a tainted or biased perception. For example, a human and a dog are both put in a forest where they are lost and must find their way home. The person will rely highly on sight to sort through the wilderness and arrive home safely because he has conditioned himself to rely heavily on the sense of sight while, the dog may rely on scent more so then sight to track his way home. Both have perception that has been flawed or somewhat polluted. Both the human and dog are exposed to the same stimuli yet they each perceive their situations differently. This is due to their biased perception, the human through previous experiences has conditioned himself to perceive his experiences mainly through sight while the dog has done the same but with smell, neither has an unprejudiced perception because both have been conditioned through experiences. Perception is controlled and created by experience. The goal of perceiving is to know your surroundings. However your surroundings control your experiences. Therefore perceiving is a way of analyzing your experiences. But if this is true then there is no such thing as immaculate perception. Every individual's experiences are each unique. The way in which they are accepted or rejected depends on cultural conditioning as well as previous experiences. With this bias no one can claim to have untouched or virgin perception because it has been trained to only acknowledge certain elements of the surrounding. For example, I have been trained to rely on sight to gain the bulk of my knowledge of my surroundings but a blind person would have trained their senses or perception tools very differently having no sight. Therefore each experience and the sense datum gained from it would be different. The stance of immaculate perception claims that since the act of perceiving has no bias each experience for every person results in the same knowledge. This is false because it is impossible for two beings to infer the same information from a protocol. In a world made of unique creatures it's impossible for immaculate perception to exist.
Thursday, November 7, 2019
Wi-Fi
Wi-Fi In the early age of computers, transferring of information from one computer system to another was a mere physical task. Nowadays, wireless technology is making it easy for everyone to effortlessly communicate with each other free from the use of any physical wiring and making it very cost effective. It is now being widely used by many organizations such as schools, hospitals, business-establishments, airports, and government facilities. Because of the increasing improvement and the price consistency of this technology (Rabbani, 2009), Computer hardware is no longer a major barrier to wide use of wireless information systems. Prior to the advancement of the Wi-Fi technology and the computer networking systems, computer users used only magnetic removable media devices such as an 8-inch floppy disk to transfer data from one computer system to another. Users had to upload data to the removable device and literally deliver it to the requesting computer using a pair of sneakers.View of Ho llywood and Los Angeles from Griffith Pa...This method ended up being called sneakernet and it is still popularly used today by professionals and end-users alike (McMahon, 2003).After the advent of the computer networking system, it enabled end-users and IT Professionals to instantly transfer computer data through wired network systems without having to physically transport it to the proper destination. This involves using routers, switches, and hubs (Pavlou, 2007). By 1997, the Institute of Electrical and Electronics Engineer or IEEE developed the first implemented wireless network technology called the IEEE 802.11 specification and since then developed other more-advanced standards based on this specification. This became known as the Wi-Fi standard and this revolutionized the communications system ever since (Burger 2010).There were three types of wireless standard that were certified by the Wi-Fi Alliance association, the organization that tests and certifies these Wi-Fi product s to interoperate with each other. These products were...
Tuesday, November 5, 2019
Bony Fish Facts
Bony Fish Facts Most of the worlds fish species are categorized into two types: bony fish and cartilaginous fish. In simple terms, a bony fish (Osteichthyes)à is one whose skeleton is made of bone, while a cartilaginous fish (Chondrichthyes) has aà skeleton made of soft, flexible cartilage. A third type of fish, including eels and hagfish, is the group known as Agnatha, or jawless fish.à The cartilaginous fish include sharks,à skates,à andà rays.à Virtually all other fish fall into the class of bony fish which includes over 50,000 species. Fast Facts: Bony Fish Scientific Name: Osteichthyes, Actinopterygii, SacropterygiiCommon Names: Bony fish, ray-finned and lobe-finned fishesBasic Animal Group: FishSize: From below a half inch to 26 feet longWeight: Well under an ounce to 5,000 poundsLifespan: A few months to 100 years or longerà Diet:à Carnivore, Omnivore, HerbivoreHabitat: Polar, temperate, and tropical ocean waters as well as freshwater environmentsConservation Status: Some species are Critically Endangered and Extinct. Description All bony fishes have sutures in their neurocranium and segmented fin rays derived from their epidermis. Both bony fish and cartilaginous fish breathe through gills, but bony fish also have a hard, bony plate covering their gills. This feature is called an operculum. Bony fish may also have distinct rays, or spines, in their fins. And unlike cartilaginous fish, bony fish have swim or gas bladders to regulate their buoyancy. Cartilaginous fish, on the other hand, must swim constantly to stay afloat.à à Mint Images/Getty Images Species Bony fish are considered to members of the classà Osteichthyes, which is subdivided into two main types of bony fish: Ray-finned fishes, or ActinopterygiiLobe-finned fishes, or Sarcopterygii, which includes the coelacanths and lungfishes. The subclass Sarcopterygii is made up of about 25,000 species, all characterized by the presence of enamel on their teeth. They have a central axis of bone that acts as a unique skeletal support for fins and limbs, and their upper jaws are fused with their skulls. Two major groups of fishes fit under the Sarcopterygii: the Ceratodontiformes (or lungfishes) and the Coelacanthiformes (or coelacanths), once thought to be extinct. Actinopterygii includes 33,000 species in 453 families. They are found in all aquatic habitats and range in body size from under a half inch to over 26 feet long. The Ocean sunfish weighs up to over 5,000 pounds. The members of this subclass have enlarged pectoral fins and fused pelvic fins.à Species include Chondroste, which are primitive ray-finned bony fishes; Holostei or Neopterygii, the intermediate ray-finned fishes like sturgeons, paddlefish, and bichirs; and Teleostei or Neopterygii, the advanced bony fishes such as herring, salmon, and perch.à Habitat and Distribution Bony fish can be found in waters all around the world, freshwater and saltwater both, unlike cartilagenous fish who are found only in salt waters.à Marine bony fish live in all the oceans, from shallow to deep waters, and in both cold and warm temperatures. Their lifespans range from a few months to over 100 years. An extreme example of bony fish adaptation is the Antarctic icefish, which lives in waters so cold that antifreeze proteins circulate through its body to keep it from freezing. Bony fish also comprise virtually all freshwater species living in lakes, rivers, and streams.à Sunfish, bass, catfish, trout, and pike are examples of bony fish, as are the freshwater tropical fish that you see in aquariums.à Other species of bony fish include: TunaAtlantic codRed lionfishGiant frogfishSeahorsesOcean sunfish Rodrigo Friscione/Getty Images Diet and Behavior A bony fishs prey depends on the species but may include plankton, crustaceans (e.g., crabs), invertebrates (e.g., green sea urchins), and even other fish. Some species of bony fish are virtual omnivores, eating all manner of animal and plant life.à Bony fish behavior varies greatly, depending on theà species. Smaller bony fish swim in schools for protection. Some like the tuna swim continually while others (stonefish and flatfish) spend most of their time lying on the seafloor. Some such as morays only hunt at night; some like butterfly fishes do so during the day; and others are most active at dawn and dusk.à Reproduction and Offspring Some bony fish are born sexually mature or become mature shortly after birth; most mature within the first one to five years. The main reproduction mechanism is external fertilization. During the spawning season, females release hundreds to thousands of eggs in the water, and males release sperm and fertilize the eggs. Not all bony fish do lay eggs: Some are live-bearing. Some are hermaphrodites (the same fish has both male and female genitalia), and other bony fish switch genders over time. Some, like the seahorse, are oviparous, meaning the eggs are fertilized in the parent who feeds them from a yolk sac. Among seahorses, the male carries the offspring until they are born.à Evolutionary History The first fish-like creatures appeared over 500 million years ago. Bony fish and cartilaginous fish diverged into separate classes about 420 million years ago. Cartilaginous species are sometimes seen as more primitive, and for good reason. The evolutionary appearance of bony fish eventually led to land-dwelling vertebrates with bony skeletons. And the gill structure of bony fish gill was a feature that would eventually evolve into air-breathing lungs. Bony fishes are therefore a more direct ancestor to humans.à Conservation Status Most bony fish species are classed as Least Concern by the International Union for Conservation of Nature (IUCN), but there numerous species that are Vulnerable, Near Threatened, or Critically Threatened, such as Metriaclima koningsi of Africa. Sources Bony and Ray-Finned Fishes. Endangered Species International, 2011.à Class Osteichthyes. The Biology Classroom of Mr. Pletsch. University of British Columbia, February 2, 2017.Hastings, Philip A., Harold Jack Walker, and Grantly R. Galland. Fishes: A Guide to Their Diversity. Berkeley, University of California Press, 2014.Konings, A. Metriaclima . The IUCN Red List of Threatened Species: e.T124556154A124556170, 2018.à koningsiMartin, R.Adam. Fathoming Geologic Time. ReefQuest Centre for Shark Research.Plessner, Stephanie. Fish Groups. Florida Museum of Natural History: Ichthyology.
Sunday, November 3, 2019
Explain how Germany OR Denmark has sought to have both some security Essay
Explain how Germany OR Denmark has sought to have both some security and flexibility in its labour markets. Have these approach - Essay Example These market factors may include the compensation packages, daily wage rates, additional benefits and the most important one is the involvement of technology involved in the industry. As much as there is technology involvement the demand of labor will be affected by this. The fluctuation of labor market also indicates the unemployment or the employment rate of any economy. This unemployment rate is high if more technology is involved in any industry otherwise it will be low. There are certain numbers of economies who have maintained their employment rates by utilizing the entire available workforce. Germany is one of the economies who have managed their available and also potential labor and thus maintaining the labor market also. Main Body: Due to the involvement of technology in almost each and every sector, now the conditions or we can say the requirements of the labor market are very much changed. Now the companies need a highly skilled and capable work force which can be a sourc e of competitive advantage for them. The available labor at the lowest possible cost can be a foundation of competitive advantage. The quantity of labor and the capabilities of labor may be inversely related to each other. ... This willingness or the eagerness can take them even across the boundaries also. Germany is at fourth position among the largest economies in the world and also has a strong industrial base. It is also included in the list of those economies that enjoy a major part of revenues from foreign trade. There are certain medium and even small companies that cover almost two third of the workforce of the country. Germany is currently included in the list of those countries that are enjoying the lowest unemployment rates as compare to the other economies of the world. Particularly there is a variety of job availability for the young professionals also. For maintaining the labor work force, Germany is doing a good job among European Union Countries also. Even in some regions of the Germany, specifically in Southern parts there is a full employment situation also just because of managing the work force availability at a proper and right time. Companies try to utilize the fresh and energetic you ng professionals by giving them apprenticeship during or just after their studies and thus giving them training also (Germanyââ¬â¢s Vibrant Labor Market). If the companies find the required talents during the apprenticeship then they may also hire these young individuals as a permanent employee for their organization. This managed work force or we can say the developed labor market is not very old in the Germany. In 2005 the unemployment rate of German economy was the highest one as compare to other countries. But then the Government officials handle it. And now they have excelled over it. There can be two reasons for this almost full employment situation. One can be the Government economic
Friday, November 1, 2019
TORT LAW - F Essay Example | Topics and Well Written Essays - 2500 words
TORT LAW - F - Essay Example The difference between the two thus far developed has been a cause of grave concern for common law, but the distinction has been made evident by recent cases to a great extent, especially with the presence of principles laid out in Alcock v Chief Constable of Yorkshire Police [1992]1 and McLoughlin v Oââ¬â¢Brian [1983]2. What is Nervous Shock? Nervous shock is described as an array of recognizable psychiatric diseases which are over and beyond the usual distresses a person encounters upon witnessing the scene of an accident. Mere emotional setbacks that are considered ordinary, including fear, grief and worry are not considered sufficient at law3. Thus, ailments such as clinical depression, anxiety neurosis, and post traumatic stress disorder fall into the category of nervous shock, which admittedly is a label underplayed as it represents a larger than normal degree of psychiatric damage4 than simply suggesting an element of shock. As Lord Jauncey clarified in Alcock at 419, the c laimant must suffer a ââ¬Å"recognizable psychiatric illnessâ⬠in order to justify cause for action (Chadwick v British Transport Commission [1967]5). Thus, it must be observed that nervous shock is more aptly treated as personal injury to the mind as different from personal injury to the body. It follows that the first step to determining whether a claim of psychiatric damage is valid at law would be to categorize the kind of harm experienced, and whether it was serious enough to give rise to a duty of care on the part of the defendant, as normal fear and anxiety is exempt from such duty and people are expected to be of reasonable firmness capable of dealing with normal distresses6. Negligently Inflicted Psychiatric Harm If a claim for psychiatric harm stems from one in negligence, the same principles of establishing a claim apply. Thus, the four requirements of a negligent act must be present, namely the duty of care, breach of that duty, causation and the damage resulting f rom that breach which must not be characterized as too remote. The law related to duty of care is illustrated well by the principles established in Donoghue v Stevenson7 and Caparo Industries v Dickman8. The duty of care is established when a sufficient relationship can be established by virtue of neighborhood and proximity of relationship so that the claimant can be reasonably foreseen to be injured by the defendantââ¬â¢s act and whether establishing such a duty would be fair, just and reasonable in the present case9. In order to establish this duty, the courts take heed from recognized duty situations (Sutherland Shire Council v Heyman [1985])10. Thus, a manufacturer may be sued by a consumer for a defective product which causes physical harm (Donogue), the driver of a car who engages in an accident but only causes psychiatric damage but no physical damage to the victim he collides with may also be liable (Page v Smith [1995])11 but the employee-employer relationship does not g ive rise to an automatic duty of care in terms of psychiatric injury suffered by rescuers after an incident (White v Chief Constable of South Yorkshire Police12). Since the damage we are concerned with is psychiatric, the harm may not just extend to the victims who are immediately affected by a risk of personal injury resulting from the negligent act, but also
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