Clashes of Race Essay

Abstract The purpose of this paper is to explore racism and discrimination within America. It was also a goal to show the relationships between racial clashes throughout history, and what the purpose behind the clashes was. By showing these clashes society gets a better understand of what triggers these action within society. Running Header: CLASHES OF RACE: UNDERSTANDING THE PURPOSE In the rather complex world in which society dwells on, society lacks appreciation for the simplicity of the universe. one act or idea can spawn certain events that affect the course of history. To understand history, it is essential for society to look at the causes behind the significance of an event. racial discrimination has spawned social clashes between ethnicities for generations, and it continues to do so. to understand the significance of these events, it is important to analyze the source of these racial clashes throughout history. analyzing the sources of these events provides, if any, patterns of human nature in response to mistreatment due to racial profiling. it is also essential to analyze the basic principles of discrimination within the twenty-first century and what society faces in present day. Before analyzing racial discrimination in the twenty-first century, the importance of understanding the different types of racism is needed. There are two types of discrimination that society faces present day, direct discrimination and indirect discrimination. direct discrimination by definition, is when an individual or group is singled out directly by society or an individual based on there race. indirect discrimination is when an individual is singled out surreptitiously by an individual or group. this is more prevalent within present day culture, compared to direct discrimination. The reason being that racism in the twenty-first century is less acceptable among society. the result of racism is that it is less acceptable within modern day society is racism taking on a more enigmatic face. Running Header: CLASHES OF RACE: UNDERSTANDING THE PURPOSE social clashes that resulted from direct discrimination have been apart of america for decades. prime examples of direct discrimination are famously the wars and massacres enacted on early native americans. The reasons for these attacks on native americans were due to new settlers in america wanting to acquire resources from the natives themselves. The colonist’s believed that the natives way of life was inferior to their own, due to the savageness of their own human nature. This is a prime example of micro-aggression in early american culture. Such events such as the â€Å"trail of tears† and many other attacks on the native american’s way of life was justified due to the idea of manifest destiny, which is a belief that the territory was a divine gift to the american colonist. This resulted in constant conflict between american society and native americans in the twenty-first century. it is important to understand how micro-aggression works and operates in the twenty-first century. With modern society changing into a more diversified culture in the United States, it is important to understand how indirect discrimination works in modern society. Society by nature tends to group themselves within certain micro-cultures, it is important to understand this important dynamic due to its purpose within society. this dynamic by nature forces ethnicities to side with a certain set of social norms and values. (West,2004) examples of how this affects modern day society would best be described by conflict with interracial marriages and racial generalization. Ethnic grouping has been apart of america since the beginning of american society. the colonist settled in america based on their religions and values, in which the colonist Running Header: CLASHES OF RACE: UNDERSTANDING THE PURPOSE had previously in britain. more modern examples of ethnic grouping would be groups, such as the black panther party, naacp are examples of more modern cases of ethnic grouping. (Jablonski,2012) the common feature of today’s society, also well known as mass media, has a huge impact on racial conflictions with the populace of today’s society. One psychological principle says that if an image or idea is shown repetitively that the image or idea will leave an imprint on the mind, later on making the mind recognize the image or ideology as† normalcy†. (Yosso,2002) the mainstream media controls the public agenda, as well as the emotions reflected within society. the mass media needs to recognize the effect in which it has on society, the purpose of the media should be to promote the truth of a matter accurately. This would help balance out racial out lashes between ethnic neighborhood, as well as riots and other ethnic protest. (Vann,2006) in recent times of society, racism in north america has went through a major transformation, especially after the post-civil rights era where the democrats believed in equality for all types of ethnicities that specifically did not get along throughout the history of racism in society(Wamsted,D,2012). This shows the progression of diversity within America. however, even with change in equality the south still shows a higher percentage of direct discrimination as well as indirect discrimination in modern day society than the north. Some examples of the result of discrimination can best be depicted is social out lashes of an ethnic communities. this can be shown through protest, as well as more Running Header: CLASHES OF RACE: UNDERSTANDING THE PURPOSE serious demonstrations such as riots. the causes of these demonstrations can be a number of reasons, but one pattern that is shown throughout history is that most social out lashes resulted due to mistreatment among their race. an example of this would be the los angeles riots of 1992. The riots resulted from six officers found not guilty that were accused of beating a black male, rodney king. the riots lasted for six days, and resulted in thousands of injuries and fifty-three deaths. (Watts,2011) however, not every protest result in death and injury. through the civil rights era many protesters believed in the nonviolent approach of martin luther king jr. most protesters believed in sit-ins, boycotts, and other forms of nonviolent forms of protest. however, the effects of racism and discrimination has not stopped america from diversifying, but rather fueled individualism among minorities within america. A study shows that more minorities are striving for higher education within america. derek bok reported in 2000 in his book The Shape of the River that eighty-six percent of black students who enrolled in twenty-eight selective universities across the nation were apart of the middle-class or upper-middle class. This shows not only an increase in african american on college campus, but also the percentage of success among blacks with a stable financial backing. This trend is important to understand due to the progression of diversity within america. It is prevalent that not only income have increased among african americans, but also the number of blacks going to college compared to college statistics of the 1990s and 1980s. (Harring-Smith,2012) to understand the importance of an action, is in essence the greatest ideology or knowledge to grasp. for every action within society has an effect on history. The Running Header: CLASHES OF RACE: UNDERSTANDING THE PURPOSE importance of diversity within society continues to show progression. however, racism will always have its place within society. Society has to continue to evolve as well as continue to educate the youth in society to limit the grasp that racism has on america, whether the discrimination is indirect or direct. â€Å"we’ve got to face the fact that some people say you fight fire best with fire, but we say you put fire out best with water. we say you don’t fight racism with racism. we’re gonna fight racism with solidarity. †-Fred Hampton Running Header: CLASHES OF RACE: UNDERSTANDING THE PURPOSE References: Haring-Smith, T. (2012). Broadening Our Definition of Diversity. Liberal Education, 98(2), 6. Jablonski, N. (2012). The struggle to overcome racism. New Scientist, 215(2880), 26. Vann, A. (2006, June 29). Sometimes the allegation of â€Å"reverse racism† is camouflage for maintaining the â€Å"status quo†. New York Amsterdam News. p. 13. Wamsted, D. J. (2012). Opening Doors for Diversity. Electric Perspectives, 37(3), 26. Watts. (2011). Columbia Electronic Encyclopedia, 6th Edition, 1. West, E. (2004). Expanding the Racial Frontier. Historian, 66(3), 552. doi:10. 1111/j. 1540-6563. 2004. 00088. x Yosso, T. J. (2002). Critical Race Media Literacy: Challenging Deficit Discourse about Chicanas/os. Journal Of Popular Film & Television, 30(1), 52.

Exercise 7 Respiratory System Mechanics

EXERCISE 7 Respiratory System Mechanics O B J E C T I V E S 1. To explain how the respiratory and circulatory systems work together to enable gas exchange among the lungs, blood, and body tissues 2. To define respiration, ventilation, alveoli, diaphragm, inspiration, expiration, and partial pressure 3. To explain the differences between tidal volume, inspiratory reserve volume, expiratory reserve volume, vital capacity, residual volume, total lung capacity, forced vital capacity, forced expiratory volume, and minute respiratory volume 4. To list various factors that affect respiration 5. To explain how surfactant works in the lungs to promote respiration 6. To explain what happens in pneumothorax 7. To explain how hyperventilation, rebreathing, and breathholding affect respiratory volumes T he physiological functions of respiration and circulation are essential to life. If problems develop in other physiological systems, we can still survive for some time without addressing them. But if a persistent problem develops within the respiratory or circulatory systems, death can ensue within minutes. The primary role of the respiratory system is to distribute oxygen to, and remove carbon dioxide from, the cells of the body. The respiratory system works hand in hand with the circulatory system to achieve this. The term respiration includes breathing—the movement of air in and out of the lungs, also known as ventilation—as well as the transport (via blood) of oxygen and carbon dioxide between the lungs and body tissues. The heart pumps deoxygenated blood to pulmonary capillaries, where gas exchange occurs between blood and alveoli (air sacs in the lungs), oxygenating the blood. The heart then pumps the oxygenated blood to body tissues, where oxygen is used for cell metabolism. At the same time, carbon dioxide (a waste product of metabolism) from body tissues diffuses into the blood. The deoxygenated blood then returns to the heart, completing the circuit. Ventilation is the result of muscle contraction. The diaphragm—a domeshaped muscle that divides the thoracic and abdominal cavities—contracts, making the thoracic cavity larger. This reduces the pressure within the thoracic cavity, allowing atmospheric gas to enter the lungs (a process called inspiration). When the diaphragm relaxes, the pressure within the thoracic cavity increases, forcing air out of the lungs (a process called expiration). Inspiration is considered an â€Å"active† process because muscle contraction requires the use of ATP, whereas expiration is usually considered a â€Å"passive† process. When a person is running, however, the external intercostal muscles contract and make the thoracic cavity even larger than with diaphragm contraction alone, and expiration is the result of the internal intercostal muscles contracting. In this case, both inspiration and expiration are considered â€Å"active† processes, since muscle contraction is needed for both. Intercostal muscle contraction works in conjunction with diaphragm muscle contraction. 87 88 Exercise 7 (a) Atmospheric pressure Parietal pleura Thoracic wall Visceral pleura Pleural cavity Transpulmonary pressure 760 mm Hg 756 mm Hg 4 mm Hg 756 760 Intrapleural pressure 756 mm Hg ( 4 mm Hg) Lung Diaphragm Intrapulmonary pressure 760 mm Hg (0 mm Hg) (b) F I G U R E 7 . 1 Respiratory volumes. a) Opening screen of the Respiratory Volumes experiment. (b) Intrapulmonary and intrapleural relationships Respiratory System Mechanics 89 Respiratory Volumes Ventilation is measured as the frequency of breathing multiplied by the volume of each breath, called the tidal volume. Ventilation is needed to maintain oxygen in arterial blood and carbon dioxide in venous blood at their normal levels—that is, at their normal partial pressures. [The term partial pressure refers to the proportion of pressure that a single gas exerts within a mixture. For example, in the atmosphere at sea level, the pressure is 760 mm Hg. Oxygen makes up about 20% of the total atmosphere and therefore has a partial pressure (PO2 ) of 760 mm Hg 20%, close to 160 mm Hg. ] Oxygen diffuses down its partial pressure gradient to flow from the alveoli of the lungs into the blood, where the oxygen attaches to hemoglobin (meanwhile, carbon dioxide diffuses from the blood to the alveoli). The oxygenated blood is then transported to body tissues, where oxygen again diffuses down its partial pressure gradient to leave the blood and enter the tissues. Carbon dioxide (produced by the metabolic reactions of the tissues) diffuses down its partial pressure gradient to flow from the tissues into the blood for transport back to the lungs. Once in the lungs, the carbon dioxide follows its partial pressure gradient to leave the blood and enter the air in the alveoli for export from the body. Normal tidal volume in humans is about 500 milliliters. If one were to breathe in a volume of air equal to the tidal volume and then continue to breathe in as much air as possible, that amount of air (above and beyond the tidal volume) would equal about 3100 milliliters. This amount of air is called the inspiratory reserve volume. If one were to breathe out as much air as possible beyond the normal tidal volume, that amount of air (above and beyond the tidal volume) would equal about 1200 milliliters. This amount of air is called the expiratory reserve volume. Tidal volume, inspiratory reserve volume, and expiratory reserve volume together constitute the vital capacity, about 4800 milliliters. It is important to note that the histological structure of the respiratory tree (where air is found in the lungs) will not allow all air to be breathed out of the lungs. The air remaining in the lungs after a complete exhalation is called the residual volume, normally about 1200 milliliters. Therefore, the total lung capacity (the vital capacity volume plus the residual volume) is approximately 6000 milliliters. All of these volumes (except residual volume) can be easily measured using a spirometer. Basically, a spirometer is composed of an inverted bell in a water tank. A breathing tube is connected to the bell’s interior. On the exterior of the inverted bell is attached a pen device that records respiratory volumes on paper. When one exhales into the breathing tube, the bell goes up and down with exhalation. Everything is calibrated so that respiratory volumes can be read directly from the paper record. The paper moves at a pre-set speed past the recording pen so that volumes per unit time can be easily calculated. In addition to measuring the respiratory volumes introduced so far, the spirometer can also be used to perform pulmonary function tests. One such test is the forced vital capacity (FVC), or the amount of air that can be expelled completely and as rapidly as possible after taking in the deepest possible breath. Another test is the forced expiratory volume (FEV1), which is the percentage of vital capacity that is exhaled during a 1-sec period of the FVC test. This value is generally 75% to 85% of the vital capacity. In the following experiments you will be simulating spirometry and measuring each of these respiratory volumes using a pair of mechanical lungs. Follow the instructions in the Getting Started section at the front of this lab manual to start up PhysioEx. From the drop-down menu, select Exercise 7: Respiratory System Mechanics and click GO. Before you perform the activities watch the Water-Filled Spirometer video to see the experiment performed with a human subject. Then click Respiratory Volumes. You will see the opening screen for the â€Å"Respiratory Volumes† experiment (Figure 7. 1). At the left is a large vessel (simulating the thoracic cavity) containing an air flow tube. This tube looks like an upside-down â€Å"Y. † At the ends of the â€Å"Y† are two spherical containers, simulating the lungs, into which air will flow. On top of the vessel are controls for adjusting the radius of the tube feeding the â€Å"lungs. This tube simulates the trachea and other air passageways into the lungs. Beneath the â€Å"lungs† is a black platform simulating the diaphragm. The â€Å"diaphragm† will move down, simulating contraction and increasing the volume of the â€Å"thoracic cavity† to bring air into the â€Å"lungs†; it will then move up, simulating relaxation and decreasin g the volume of the â€Å"thoracic cavity† to expel air out. At the bottom of the vessel are three buttons: a Start button, an ERV (expiratory reserve volume) button, and an FVC (forced vital capacity) button. Clicking Start will start the simulated lungs breathing at normal tidal volume; clicking ERV will simulate forced exhalation utilizing the contraction of the internal intercostal muscles and abdominal wall muscles; and clicking FVC will cause the lungs to expel the most air possible after taking the deepest possible inhalation. At the top right is an oscilloscope monitor, which will graphically display the respiratory volumes. Note that the Yaxis displays liters instead of milliliters. The X-axis displays elapsed time, with the length of the full monitor displaying 60 seconds. Below the monitor is a series of data displays. A data recording box runs along the bottom length of the screen. Clicking Record Data after an experimental run will record your data for that run on the screen. A C T I V I T Y 1 Trial Run Let’s conduct a trial run to get familiarized with the equipment. 1. Click the Start button (notice that it immediately turns into a Stop button). Watch the trace on the oscilloscope monitor, which currently displays normal tidal volume. Watch the simulated diaphragm rise and fall, and notice the â€Å"lungs† growing larger during inhalation and smaller during exhalation. The Flow display on top of the vessel tells you the amount of air (in liters) being moved in and out of the lungs with each breath. 2. When the trace reaches the right side of the oscilloscope monitor, click the Stop button and then click Record Data. Your data will appear in the data recording box along the bottom of the screen. This line of data tells you a wealth of information about respiratory mechanics. Reading the data from left to right, the first data field should be that of the Radius of the air flow tube (5. 00 mm). The next data field, Flow, displays the total flow volume for this experimental run. T. V. stands for â€Å"Tidal Volume†; E. R. V. for â€Å"Expiratory 90 Exercise 7 Reserve Volume†; I. R. V. for â€Å"Inspiratory Reserve Volume†; R. V. for â€Å"Residual Volume†; V. C. for â€Å"Vital Capacity†; FEV1 for â€Å"Forced Expiratory Volume†; T. L. C. for â€Å"Total Lung Capacity†; and finally, Pump Rate for the number of breaths per minute. 3. You may print your data at any time by clicking Tools at the top of the screen and then Print Data. You may also print the trace on the oscilloscope monitor by clicking Tools and then Print Graph. 4. Highlight the line of data you just recorded by clicking it and then click Delete Line. . Click Clear Tracings at the bottom right of the oscilloscope monitor. You are now ready to begin the first experiment.  ¦ A C T I V I T Y 2 6. Click Clear Tracings before proceeding to the next activity. Do not delete your recorded data—you will need it for the next activity.  ¦ A C T I V I T Y 3 Effect of Restricted Air Flow on Respiratory Volumes 1. Adjust the radius of the air flow tube to 4. 00 mm by clicking the ( ) button next to the radius display. Repeat steps 2–5 from the previous activity, making sure to click Record Data. How does this set of data compare to the data you recorded for Activity 2? The breathing isn't as strong ________________________________________________ the flow and tidal volume have decreased ________________________________________________ Is the respiratory system functioning better or worse than it did in the previous activity? Explain why. functioning worse, it isn't moving as much air or expanding ________________________________________________ the lungs as far because of the decreased space for intake ________________________________________________ and output of air 2. Click Clear Tracings. 3. Reduce the radius of the air flow tube by another 0. 0 mm to 3. 50 mm. 4. Repeat steps 2–6 from Activity 2. 5. Reduce the radius of the air flow tube by another 0. 50 mm to 3. 00 mm. 6. Repeat steps 2–6 from Activity 2. What was the effect of reducing the radius of the air flow tube on respiratory volumes? furthur decrease of flow and tidal volume ________________________________________________ ________________________________________________ What does the air flow tube simulate in the human body? trachea ________________________________________________ ________________________________________________ Measuring Normal Respiratory Volumes 1. Make sure that the radius of the air flow tube is at 5. 00 mm. To adjust the radius, click the ( ) or ( ) buttons next to the radius display. 2. Click the Start button. Watch the oscilloscope monitor. When the trace reaches the 10-second mark on the monitor, click the ERV button to obtain the expiratory reserve volume. 3. When the trace reaches the 30-second mark on the monitor, click the FVC to obtain the forced vital capacity. 4. Once the trace reaches the end of the screen, click the Stop button, then click Record Data. . Remember, you may print your trace or your recorded data by clicking Tools at the top of the screen and selecting either Print Graph or Print Data. From your recorded data, you can calculate the minute respiratory volume: the amount of air that passes in and out of the lungs in 1 minute. The formula for calculating minute respiratory volume is: Minute respiratory volume tidal volume bpm (breaths per minute) Calculate and en ter the minute respiratory volume: _7,500________ Judging from the trace you generated, inspiration took place over how many seconds? __2 seconds_____________ Expiration took place over how many seconds? What could be some possible causes of reduction in air flow to the lungs? obstruction, inflammation from illness or allergic ________________________________________________ reaction ________________________________________________ ________________________________________________ 7. Click Tools > Print Data to print your data. _____2 seconds____________ Does the duration of inspiration or expiration vary during yes ERV or FVC? _____ Respiratory System Mechanics 91 FIGURE 7. 2 Opening screen of the Factors Affecting Respiration experiment. Express your FEV1 data as a percentage of vital capacity by filling out the following chart. (That is, take the FEV1 value and divide it into the vital capacity value for each line of data. ) Factors Affecting Respiration Many factors affect respiration. Compliance, or the ability of the chest wall or lung to distend, is one. If the chest wall or lungs cannot distend, respiratory ability will be compromised. Surfactant, a lipid material secreted into the alveolar fluid, is another. Surfactant acts to decrease the surface tension of water in the fluid that lines the walls of the alveoli. Without surfactant, the surface tension of water would cause alveoli to collapse after each breath. A third factor affecting respiration is any injury to the thoracic wall that results in the wall being punctured. Such a puncture would effectively raise the intrathoracic pressure to that of atmospheric pressure, preventing diaphragm contraction from decreasing intrathoracic pressure and, consequently, preventing air from being drawn into the lungs. Recall that airflow is achieved by the generation of a pressure difference between atmospheric pressure on the outside of the thoracic cavity and intrathoracic pressure on the inside. ) We will be investigating the effect of surfactant in the next activity. Click Experiment at the top of the screen and then select Factors Affecting Respiration. The opening screen will look like Figure 7. 2. Notice the changes to the FEV1 as % of Vital Capacity Radius FEV1 Vital Capacity FEV1 (%) 5. 00 4. 00 3. 50 3. 00 3541 1422 822 436 4791 1962 1150 621 1. 35% 1. 37% 1. 39% 1. 42%  ¦ 92 Exercise 7 quipment above the air flow tube. Clicking the Surfactant button will add a pre-set amount of surfactant to the â€Å"lungs. † Clicking Flush will clear the lungs of surfactant. Also notice that valves have been added to the sides of each simulated lung. Opening the valves will allow atmospheric pressure into the vessel (the â€Å"thoracic cavity†). Finally, notice the changes to the display windows below the oscilloscope screen. Flow Left and Pressure Left refer to the flow of air and pressure in the left â€Å"lung†; Flow Right and Pressure Right refer to the flow of air and pressure in the right â€Å"lung. Total Flow is the sum of Flow Left and Flow Right. A C T I V I T Y 4 3. Click Flush to remove the surfactant from the previous activity. 4. Be sure that the air flow radius is set at 5. 00 mm, and that P ump Rate is set at 15 strokes/minute. 5. Click on Start and allow the trace to sweep the length of the oscilloscope monitor. Notice the pressure displays, and how they alternate between positive and negative values. 6. Click Record Data. Again, this is your baseline data. 7. Now click the valve for the left lung, which currently reads â€Å"Valve closed. † 8. . Click Start and allow the trace to sweep the length of the Click Record Data. oscilloscope monitor. Effect of Surfactant on Respiratory Volumes 1. The data recording box at the bottom of the screen should be clear of data. If not, click Clear Table. 2. The radius of the air flow tube should be set at 5. 00 mm, and the Pump Rate should be set at 15 strokes/minute. 3. Click Start and allow the trace to sweep across the full length of the oscilloscope monitor. Then click Record Data. This will serve as the baseline, or control, for your experimental runs. You may wish to click Tools and then Print Graph for a printout of your trace. 4. Click Surfactant twice to add surfactant to the system. Repeat step 3. When surfactant is added, what happens to the tidal volume? It increases the amount of air being inhaled ________________________________________________ As a result of the tidal volume change, what happens to the flow into each lung and total air flow? ________________________________________________ they all increase Why does this happen? urfactant decreases teh surface tension of water in the ________________________________________________ fluid that lines the walls of the alveoli ________________________________________________ Remember, you may click Tools and then either Print Data or Print Graphs to print your results.  ¦ A C T I V I T Y 5 What happened to the left lung when you clicked on the valve button? Why? The lung deflated due to the change in the intrapleural ________________________________________________ pressure ________________________________________________ ________________________________________________ What has happened to the â€Å"Total Flow† rate? t reduced ________________________________________________ by half 0 What is the pressure in the left lung? ___________________ no Has the pressure in the right lung been affected? _________ If there was nothing separating the left lung from the right lung, what would have happened when you opened the valve for the left lung? Why? Both lungs would have collapsed due to pressure ________________________________________________ ________________________________________________ ________________________________________________ ________________________________________________ Now click the valve for the left lung again, closing it. What happens? Why? nothing , there is excess air remaining in the lung ________________________________________________ ________________________________________________ Click Reset (next to the Flush button at the top of the air flow tube). What happened? the lung reinflated ________________________________________________ Describe the relationship required between intrathoracic pressure and atmospheric pressure in order to draw air into the lungs. intrathroacic pressure must be greater or lower than ________________________________________________ atmospheric pressure to draw air in and out of the lungs _______________________________________________ Effect of Thoracic Cavity Puncture Recall that if the wall of the thoracic cavity is punctured, the intrathoracic pressure will equalize with atmospheric pressure so that the lung cannot be inflated. This condition is known as pneumothorax, which we will investigate in this next activity. 1. Do not delete your data from the previous act ivity. 2. If there are any tracings on the oscilloscope monitor, click Clear Tracings. Respiratory System Mechanics 93 FIGURE 7. 3 Opening screen of the Variations in Breathing experiment. Design your own experiment for testing the effect of opening the valve of the right lung. Was there any difference from the effect of opening the valve of the left lung? no ________________________________________________ Remember, you may click Tools and then either Print Data or Print Graphs to print your results.  ¦ Variations in Breathing Normally, alveolar ventilation keeps pace with the needs of body tissues. The adequacy of alveolar ventilation is measured in terms of the partial pressure of carbon dioxide (PCO2). Carbon dioxide is the major component for regulating breathing rate. Ventilation (the frequency of breathing multiplied by the tidal volume) maintains the normal partial pressures of oxygen and carbon dioxide both in the lungs and blood. Perfusion, the pulmonary blood flow, is matched to ventilation. The breathing patterns of an individual are tightly regulated by the breathing centers of the brain so that the respiratory and circulatory systems can work together effectively. In the next activity you will examine the effects of rapid breathing, rebreathing, and breathholding on the levels of carbon dioxide in the blood. Rapid breathing increases breathing rate and alveolar ventilation becomes excessive for tissue needs. It results in a decrease in the ratio of carbon dioxide production to alveolar ventilation. Basically, alveolar ventilation becomes too great for the amount of carbon dioxide being produced. In rebreathing, air is taken in that was just expired, so the PCO2 (the partial pressure of carbon dioxide) in the alveolus (and subsequently in the blood) is elevated. In breathholding, there is no ventilation and no gas exchange between the alveolus and the blood. Click Experiment at the top of the screen and select Variations in Breathing. You will see the next screen, shown in Figure 7. 3. This screen is very similar to the ones you have been working on. Notice the buttons for Rapid Breathing, Rebreathing, Breath Holding, and Normal Breathing—clicking each of these buttons will induce the given pattern of breathing. Also note the displays for PCO2, Maximum PCO2, Minimum PCO2, and Pump Rate. 94 Exercise 7 A C T I V I T Y 6 How does the rebreathing trace compare to your baseline trace? (Look carefully—differences may be subtle. ) ________________________________________________ Why? _______________________________________________ ________________________________________________ Click Clear Tracings to clear the oscilloscope monitor.  ¦ A C T I V I T Y 8 Rapid Breathing 1. The oscilloscope monitor and the data recording box should both be empty and clear. If not, click Clear Tracings or Clear Table. 2. The air flow tube radius s hould be set to 5. 00. If not, click the ( ) or ( ) buttons next to the radius display to adjust it. 3. Click Start and conduct a baseline run. Remember to click Record Data at the end of the run. Leave the baseline trace on the oscilloscope monitor. 4. Click Start again, but this time click the Rapid Breathing button when the trace reaches the 10-second mark on the oscilloscope monitor. Observe the PCO2 levels in the display windows. 5. Allow the trace to finish, then click Record Data. What happens to the PCO2 level during rapid breathing? it decreased ________________________________________________ Why? co2 was removed more than during normal breathing ________________________________________________ ________________________________________________ Remember, you may click Tools and then either Print Data or Print Graphs to print your results. Click Clear Tracings before continuing to the next activity.  ¦ A C T I V I T Y 7 Breath Holding 1. Click on Start and conduct a baseline run. Remember to click Record Data at the end of the run. Leave the baseline trace on the oscilloscope monitor. 2. Click Start again, but this time click the Breath Holding button when the trace reaches the 10-second mark on the oscilloscope monitor. Observe the PCO2 levels in the display windows. 3. At the 20-second mark, click Normal Breathing and let the trace finish. 4. Click Record Data. What happens to the PCO2 level during breath holding? t rose ________________________________________________ Why? co2 exchange could not take place ________________________________________________ ________________________________________________ Rebreathing Repeat Activity 6, except this time click the Rebreathing button instead of the Rapid Breathing button. What happens to the PCO2 level during rebreathing? it increase ____________________________________ ____________ ________________________________________________ Why? there was more co2 in the inhaled air ________________________________________________ ________________________________________________ What change was seen when you returned to â€Å"Normal Breathing†? the rate and depth of breathing increased ________________________________________________ ______________________________________________  ¦ Remember, you may print your data or graphs by clicking Tools at the top of the screen and then selecting either Print Data or Print Graph.  ¦ A C T I V I T Y 9 Comparative Spirometry In Activity 1, normal respiratory volumes and capacities are measured. In this activity, you will explore what happens to these values when pathophysiology develops or during episodes of aerobic exercise. Using a water-filled spirometer and knowledge of respiratory mechanics, changes to these values in each condition can be predicted, documented, and explained. Did the total flow change? just a little ________________________________________________ Why? increase pump rate ________________________________________________ ________________________________________________ Respiratory System Mechanics 95 FIGURE 7. 4 Opening screen of the Comparative Spirometry experiment. Normal Breathing 1. Click the Experiment menu, and then click Comparative Spirometry. The opening screen will appear in a few seconds (see Figure 7. 4). 2. For the patient’s type of breathing, select the Normal option from the drop-down menu in the Patient Type box. These values will serve as a basis of comparison in the diseased conditions. 3. Select the patient’s breathing pattern as Unforced Breathing from the Breathing Pattern Option box. 4. After these selections are made, click the Start button and watch as the drum starts turning and the spirogram develops on the paper rolling off the drum across the screen, left to right. 5. When half the screen is filled with unforced tidal volumes and the trace has paused, select the Forced Vital Capacity button in the Breathing Pattern Options box. . Click the Start button and trace will continue with the FVC maneuver. The trace ends as the paper rolls to the right edge of the screen. 7. Now click on the individual measure buttons that appear in the data table above each data column to measure the lung volume and lung capacity data. Note that when a measure button is selected, t wo things happen simultaneously: (1) a bracket appears on the spirogram to indicate where that measurement originates on the spirogram and (2) the value in milliliters appears in the data table. Also note that when the FEV1 measure button is selected, the final column labeled FEV1/FVC will be automatically calculated and appear in the data table. The calculation is (FEV1/FVC) 100%, and the result will appear as a percentage in the data table. What do you think is the clinical importance of the FVC and FEV1 values? ________________________________________________ Why do you think the ratio of these two values is important to the clinician when diagnosing respiratory diseases? _______ demonstrates how the lungs are functioning ________________________________________________ FEV1 /FVC 100% 80% ______________________ 96 Exercise 7 Emphysema Breathing In a person with emphysema, there is a significant loss of intrinsic elastic recoil in the lung tissue. This loss of elastic recoil occurs as the disease destroys the walls of the alveoli. Airway resistance is also increased as the lung tissue in general becomes more flimsy and exerts less mechanical tethering on the surrounding airways. Thus the lung becomes overly compliant and expands easily. Conversely, a great effort is required to exhale as the lungs can no longer passively recoil and deflate. A noticeable and exhausting muscular effort is required for each exhalation. Thus a person with emphysema exhales slowly. . Using this information, predict what lung values will change in the spirogram when the patient with emphysema breathing is selected. Assume that significant disease has developed, and thus a loss of elastic recoil has occurred in this patient’s lungs. 2. Select Emphysema from the drop-down menu in the Patient Type box. 3. Select the patient ’s breathing pattern as Unforced Breathing from the Breathing Pattern box. 4. After these selections are made and the existing spirogram screen clears, click the Start button and watch as the drum starts turning and a new spirogram develops on the paper rolling off the drum. . Repeat steps 5–7 of the Normal Breathing section in this activity. 6. Now consider the accuracy of your predictions (what changed versus what you expected to change). Compared to the values for normal breathing: reduced Is the FVC reduced or increased? ______________________ reduced Is the FEV1 reduced or increased? _____________________ fev1 Which of these two changed more? ____________________ Explain the physiological reasons for the lung volumes and capacities that changed in the spirogram for this condition. _______________________________________________ ________________________________________________ ________________________________________________ 1. Using this information, predict what lung values will change in the spirogram when the patient who is having an acute asthma attack is selected. Assume that significantly decreased airway radius and increased airway resistance have developed in this patient’s lungs. 2. Select Asthmatic from the drop-down menu in the Patient Type box. 3. Select the patient’s breathing pattern as Unforced Breathing from the Breathing Pattern box. . After these selections are made and the existing spirogram screen clears, click the Start button and watch as the drum starts turning and a new spirogram develops as the paper rolls off the drum. 5. Repeat steps 5–7 of the Normal Breathing section in this activity. 6. Now consider the accuracy of your predictions (what changed versus what you expected to change). Compared to the values for normal breathing: reduced Is the FVC reduced or increased? _____________________ reduced Is the FEV1 reduced or increased? _____________________ fev1 Which of these two changed more? ___ ________________ Explain the physiological reasons for the lung volumes and capacities that changed in the spirogram for this condition. ________________________________________________ ________________________________________________ How is this condition similar to having emphysema? How is the fvc is less reduce than emphysema and it different? ______________________________________ the fev1 is more reduced, the fcv/fev1 % is also reduced ________________________________________________ Emphysema and asthma are called obstructive lung diseases as they limit expiratory flow and volume. How would a spirogram look for someone with a restrictive lung disease, such as pulmonary fibrosis? decreased fev1/fev ________________________________________________ What volumes and capacities would change in this case, and would these values be increased or decreased? normal or above normal volume ________________________________________________ ________________________________________________ In an acute asthma attack, the compliance of the lung is decreased, not increased as it was for emphysema, and air flows freely through the bronchioles. Therefore, will the FEV1/ FVC percentage be less than normal, equal to normal, or higher higher than normal? ______________________________________ Acute Asthma Attack Breathing During an acute asthma attack, bronchiole smooth muscle will spasm and thus the airways become constricted (that is, they have a reduced diameter). They also become clogged with thick mucous secretions. These two facts lead to significantly increased airway resistance. Underlying these symptoms is an airway inflammatory response brought on by triggers such as allergens (e. g. , dust and pollen), extreme temperature changes, and even exercise. Similar to emphysema, the airways collapse and pinch closed before a forced expiration is completed. Thus the volumes and peak flow rates are significantly reduced during an asthma attack. However, the elastic recoil is not diminished in an acute asthma attack. Respiratory System Mechanics 97 Acute Asthma Attack Breathing with Inhaler Medication Applied When an acute asthma attack occurs, many people seek relief from the symptoms by using an inhaler. This device atomizes the medication and allows for direct application onto the afflicted airways. Usually the medication includes a smooth muscle relaxant (e. . , a beta-2 agonist or an acetylcholine antagonist) that relieves the bronchospasms and induces bronchiole dilation. The medication may also contain an antiinflammatory agent such as a corticosteroid that suppresses the inflammatory response. Airway resistance is reduced by the use of the inhaler. 1. Using this information, predict what lung values will change in the spirogram whe n the patient who is having an acute asthma attack applies the inhaler medication. By how much will the values change (will they return to normal)? 2. Select Plus Inhaler from the drop-down menu in the Patient Type box. 3. Select the patient’s breathing pattern as Unforced Breathing from the Breathing Pattern box. 4. After these selections are made and the existing spirogram screen clears, click the Start button and watch as the drum starts turning and a new spirogram develops as the paper rolls off the drum. 5. Repeat steps 5–7 of the Normal Breathing section. 6. Now consider the accuracy of your predictions (what changed versus what you expected to change). Compared to the values for the patient experiencing asthma symptoms: Has the FVC reduced or increased? Is it â€Å"normal†? ________ no no Has the FEV1 reduced or increased? Is it â€Å"normal†? _______ fev1 Which of these two changed more? ____________________ Explain the physiological reasons for the lung volumes and capacities that changed in the spirogram with the application of the medication. _________________________________ ________________________________________________ How much of an increase in FEV1 do you think is required for it to be considered significantly improved by the not sure medication? _______________________________________ when the feve1 is closer to normal? ________________________________________________ a. In moderate aerobic exercise, which do you predict will rv change more, the ERV or the IRV? _____________________ b. Do you predict that the respiratory rate will change yes significantly in moderate exercise? ____________________ c. Comparing heavy exercise to moderate exercise, what values do you predict will change when the body’s significantly increased metabolic demands are being met by the not sure respi ratory system? _________________________________ ________________________________________________ d. During heavy exercise, what will happen to the lung volumes and capacities that have been considered thus far? hey will increase ________________________________________________ e. yes Will the respiratory rate change? If so, how? _________ 1. Select Moderate Exercise from the drop-down menu in the Patient Type box. The existing spirogram clears. 2. Click the Start button and watch as the drum starts turning and a new spirogram develops. Half of the screen will fill with breathing volumes and capacities for moderate exercise. 3. When the trace pauses, click on the individual measure buttons that appear in the data table above each data column to measure the lung volume and lung capacity data. . Select Heavy Exercise from the drop-down menu in the Patient Type box. 5. Click the Start button and the trace will continue with the breathing pattern for heavy exercise. The trace ends as th e paper rolls to the right-hand edge of the screen. 6. Now click on the individual measure buttons that appear in the data table above each data column to measure the lung volume and lung capacity data. 7. Now consider the accuracy of your predictions (what changed versus what you expected to change). Which volumes changed the most and when? ___________ Compare the respiratory rate during moderate exercise with that seen during heavy exercise. __________________  ¦ Breathing During Exercise During moderate aerobic exercise, the human body has an increased metabolic demand, which is met in part by changes in respiration. During heavy exercise, further changes in respiration are required to meet the extreme metabolic demands of the body. Histology Review Supplement For a review of respiratory tissue, go to Exercise H: Histology Atlas & Review on the PhysioEx website to print out the Respiratory Tissue Review worksheet.

The U.S. Pledge of Allegiance in German

One of the best ways to learn German is to use something that youre already familiar with. For German students in the United States, the Pledge of Allegiance is a great lesson that can be tailored to beginners and advanced students.   The majority of American students grow up citing the Pledge of Allegiance (Der amerikanische Treueschwur). Its fixed in our memories from a very young age, so learning it in German can really help students understand and practice grammar, pronunciation, and vocabulary in a single and recognizable sentence. U.S. Pledge of Allegiance(DerAmerikanischeTreueschwur) In this instance, we use der Treueschwur  for the  English word  and the U.S. Pledge of Allegiance translates to der  amerikanische  Treueschwur  or  Treueschwur der USA. Taking those famous words, I pledge allegiance... into German is a matter of finding the right vocabulary and placing it in the correct word order. The Pledge can be an excellent lesson for students of all levels. Beginners can use it to practice German pronunciation and learn some new vocabulary while reciting it with the familiar cadence. Intermediate students can use it to study word order and proper German grammar. Advanced students can make their own attempts to translate the Pledge into German own, then compare it to the examples given. Keep in mind that translation from one language to another is never perfect or word for word. As you can see in the two examples, different words can mean the same thing. For instance,  schwà ¶re  means swear and  gelobe  means vow, but theyre both used for the verb pledge. Another example is the words  jeden  (each) and  alle  (all).  They both can be used to mean everyone, which is what the Pledge implies by all. It should be noted, however, that the first translation is the more widely accepted version of the two. German translation 1: „Ich schwà ¶re Treue auf die Fahne der Vereingten Staaten von Amerika und die Republik, fà ¼r die sie steht, eine Nation unter Gott, unteilbar, mit Freiheit und Gerechtigkeit fà ¼r jeden.â€Å" German translation 2: „Ich gelobe Treue der Fahne der Vereingten Staaten von Amerika und der Republik, fà ¼r die sie steht, eine Nation unter Gott, unteilbar, mit Freiheit und Gerechtigkeit fà ¼r alle.â€Å" The Pledge of Allegiance: â€Å" I pledge allegiance to the flag of the United States of America and to the Republic for which it stands, one nation under God, indivisible, with liberty and justice for all.† Who Wrote the U.S. Pledge of Allegiance? The Pledge of Allegiance was written by Baptist minister and socialist Francis Bellamy. It first appeared in The Youths Companion  magazine in 1892 to commemorate the 400th anniversary of the discovery of America. The original oath used the phrase â€Å"my flag† rather than â€Å"the flag of the United States of America.† The change was made in 1923. The next alteration occurred in 1954 when Congress inserted the phrase â€Å"under God.† It is interesting to note that, according to his granddaughter, Bellamy himself would have objected to this religious amendment. Additionally, the author had  originally wanted to include the word â€Å"equality† in front of â€Å"liberty and justice.† He reluctantly left that word out because he felt it controversial. Equality did not seem right to him given the fact that women and African Americans were not considered equal by many people in 1892.

Finding Online Paper Help on the Web

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Planning Of Implementation Of Proposed Work Essay

Planning of Implementation of proposed work This plan is the basis for the execution and tracking of all activities that are components of the project. An iterative life cycle model does not attempt to initialize with a full specification of requirements. Instead, development of the software begins by specifying and implementing just part of it, which can then be verified and reviewed in order to identify further requirements. This process is then repeated many times iteratively, producing a new version of the software for each cycle of the model by improving it step by step. In iterative model we are building and improving the product step by step. Hence we can identify the defects at early stages of the project development.This helps to avoids the downward flow of the defects. In iterative model, we can get the reliable user feedback time to time. While presenting sketches and blueprints of the product to users for their valuable feedback, we are effectively asking them to imagine how the product will work. In iterative model little time is spent on documenting process and more time is given for designing part. We can use the iterative mode for software development when the requirements of the complete system are clearly defined and understood and also the project is big scale. Figure 3.1: Iterative Waterfall Model GHRIET-Pune, Department of Computer Engineering, 2016 Fault Tolerant System For 3 hop routing protocol in HWN’s 11 Table 3.1: Implementation Plan TaskShow MoreRelatedNursing Research Utilization Project1349 Words   |  5 Pagesnursing profession has experienced several challenges and emerging issues in the recent past that have significant impacts on the health and wellbeing of the society. Some of the major challenges facing this field include nurses commitment to their work, their etiquette while working, shortage of nurses, meeting patients expectations, and their dedication to their profession and patients. While there have been numerous attempts to address these issues, the nursing field has proven to be difficultRead MoreFunctions Of Management Within Scholarly Literature1645 Words   |  7 Pages This literature review will provide a comprehensive overview and examination of the Four Functions of Management within scholarly literature. The paper will be divided into four section - reflecting the Four Functions - planning, organizing, leading, and controlling. Planning is defined as the ability, creation, and use of plans to analyze the future and plan for organizational action (McLean, 2011). Organizing is defined as the ability to understand, view, and orchestrate activities, resourcesRead MoreExamples Of Moving Strategic Goals Forward872 Words   |  4 Pagesacross the country and the world. Every day is a new challenge for transportation organisations as they work hard to run their services safely and on time. When facing regulatory or legal challenges, our clients require advisers who are as focused and consistent as they are in their business. With intimate knowledge of the challenges facing transportation firms today, whether they need planning approvals for a future project, are looking to finance a new project, need strategic corporate/ commercialRead MoreExisting Frameworks Of Strategy Implementation Essay1030 Words   |  5 PagesExisting frameworks of strategy implementation (the gaps of theory) The reasons for the framework in strategy implementations are obvious. it’s an extremely complex set of tasks and managers need to know what are the steps to follow, what is the sequence of those steps, why at all those steps are necessary, what is more critical in those steps, and so on. The frameworks are working as guide for managers to set the actions needed. In the absence of a framework, managers would still implement theirRead MoreImplementing a Proposed Solution1249 Words   |  5 Pages Implementing a Proposed Solution Introduction A project is an in-depth systematic analysis of a detailed documentation of variations, barriers, issues, solutions and implementation plans. It is to identify guidance recommendations and best practice on how to address those issues. A good project should give a summary of implementation plans and solutions to the varying problems identified. It should also focus on the assessment and monitoring methods of the implementation plans and solutionsRead MoreThe New Challenge Of Spatial Planning Essay1425 Words   |  6 Pages The new challenge of spatial planning in UK---localism dilemmas 1. Introduction: The planning system in England has been subject to dramatic shifts when the Coalition government was reselected after almost 70 years since 2010. (Gallent, Nick Hamiduddin, Iqbal Manuela Madeddu, 2013) This may be proved that the localism can have a significantly impact on urban planning or spatial area field especially after the Localism Bill was promoted and enacted in Parliament on November 2011. HoweverRead MoreImplementing Organizational Change Essay1574 Words   |  7 Pagesand what methods will be best to make the conversion to an EMR system is an important aspect of the implementation process. When the change process is initiated those involved in the success of the organization needs to examine the current processes and systems, including different roles that may be affected by the proposed change. With that in mind, effective communication during the implementation of this change will allow they may have regarding the new system. All of the above experiences takenRead M oreCity Hall Essay1192 Words   |  5 Pageskind of public consultation. Having this never-complain mindset rooted in my mind, I thought the public hearing in the United States may be similar, or a bit better. It turns out that, first time in my life, I saw how people were engaging into the planning of their neighborhood, and witnessed the spark between stakeholders in the San Francisco City Hall. The level of public participation in the two and a half hour amused me. My classmate, Iyan, and I went to the Engineering Public Hearing held byRead MoreAn Empirical Analysis Of Supply Chain Risk Management1692 Words   |  7 Pagesto help analyzing supply chain risk and test the previous research proposed instruments that can be applied for supply chain risk management was the motivation of this work. In this paper, the occurrence likelihood and the potential impact were used as supply chain risk identifier. The analysis showed that supply chains are mostly vulnerable and that the possible reason behind the vulnerabilities is low degree for the implementation of the used instruments in supply chain risk management. FurthermoreRead MoreDecision Making : The Rational Planning Model969 Words   |  4 PagesThe process of decision-making, and the models used during this process, has long been a focus in the field of Urban Planning. Part of this focus has been a discussion regarding w hich decision-making model is best suited for this profession. One often employed but highly controversial model for decision-making found in this field is the rational planning model. This model, which was first adopted by planners in the 1950’s and 1960’s, focuses on addressing the problems of cities and their inhabitants

Relativism Michigan Ross Publication †Free Samples to Students

Question: Discuss about the Relativism Michigan Ross Publication. Answer: Introduction: Most of the times businesses find themselves in a dilemma on deciding what is morally right. According to Shaw, et al. (2013, p. 26) there are many analytical and reasoning skills that business can apply to resolve these issues once they occur. To avoid the occurrence of unethical business related issues, the managers should ensure there are always the concepts of honesty and integrity and fair practices in place. However, this is not the case for the FIFA scandal that has largely affected its stakeholders. The corruption scandal at FIFA evidently eroded the dignity of the federation, and inconsequently affected the operations and affairs with the outside business and corporate environment. While it is debatable about the extent of the moral rot and the parties involved with pending investigations, the most affected stakeholders are the sponsors. Despite wild allegations that speculated that viewership of the premier football matches was at stake, many experts including Professor David Mayer at Michigan Ross are objected to the postulation. He says, My guess is it will not impact viewership, and if there is money to be made will not have a big impact on businesses who support the World Cup, which resoundingly assures the federations sponsorship, since it is the backbone of the trade (Michigan Ross 2015 p. 32). As this paper digs deeper into the controversies to highlight the degree of breach of regulations and associated impact to the affected stakeholders, the plain truth reveals itself. With multibillion sponsor partners such as Coca-Cola and Adidas having expressed their dire concerns with the malice at the heart of FIFA, the federation must be nuts to put its house in order before misery catches up. On the other hand, McDonald's is unsettled about the same, because Americans are zero tolerant to subverted ethics and anti-corruption (Wilson 2015, p. 49-51). In addition to the three above, Sonny, Hyundai, Adidas among others have as well threatened to loosen ties with the ill-fated federation, should justice and transparency be denied (Karr 2016, p. 23). Not to forget, the top officials of the governing council have as well be affected, given that Swiss authorities arrested six FIFA executives in the annual meeting in Zurich, who will later be charged with misappropriation of funds (McFarland 2015, p. 33). Since the allegations and consequent pursue of impunity, FIFA has realized that it owes its shareholders a great deal of responsibility. Thierry Weil, the Director of Marketing, expressed his regrets over breached rights to the partners and reaffirmed allegiance to the law for sustained activities of the federation, as well as its responsibility to the millions of fans around the world (Petriglieri 2015, p. 121). Lastly, some member states of the federation are as well guilty of the dishonesty that almost paralyzed its operations and reputation. Notably, Russia was hinted to have participated in the vice that saw funds exchange hands in return for a favor. For instance, Putin must have played a part to have the 2018 edition hosted in Moscow, for both prestige and economic reasons (Bremmer 2015). Ultimately, the leadership crisis that was just unveiled under Sepp Blatters tenure has mostly affected stakeholders, members and randy executives who might be locked behind bars when found g uilty. Reference List Bremmer, I. June 2015. These Are the 5 Facts That Explain the FIFA Scandal. Time. Available from https://time.com/3910054/fifa-scandal-sepp-blatter/ [24 September 2017] Karr, B. March 2016. "FIFA and the Stakeholders' Rights to Responsibility." Linked In. vol. 46, no. 18, pp 18-25. Mayer, D. and Schipani, C. 2015. "The FIFA Scandal Ethics, Cost, and Relativism." Michigan Ross Publication. University of Michigan Ross School of Business. Vol. 23, no.5, pp30-38. McFarland, K. may 2015. "Everything You Need to Know About FIFA's Corruption Scandal." Wired.com. available at https://www.wired.com/2015/05/fifa-scandal-explained/ [24 September 2017]. Petriglieri, J. June 2015. "How a FIFA-Like Scandal Affects Your Talent Pipeline." Harvard Business Review. Vol. 112, no.22 pp 119-128. Shaw, W. H., Barry, V. Sansbury, G., 2013. Oral issues in business. 2nd ed. South Melbourne: Victoria Cengage Learning Australia. Wilson, B. May 2015. "FIFA Scandal 'A Disaster' for Sponsors." BBC News. May 2015. Pp 48-61.

The Last Wave by Peter Weir Essay Example For Students

The Last Wave by Peter Weir Essay SOC 118The Last Wave-Peter Weir dir.(1977)In the film, The Last Wave, the director is trying to communicate the idea of aculture within a culture or sub culture. The dominant culture in the film is the whitemembers of society living in Australia. The subculture in the film is the Aborigines whowere natives to the land before the white people settled in Australia. The nativessustained their cultural beliefs and ideologies while living in largely populated cities. The dominant white culture imposes their laws , ideas of societal values and moralbeliefs on the native Aborigines. Forcing them to abide by a different law system andway of life than what their peoples have practiced for hundreds of years. In the moviethe lawyer, David, represents the dominant culture to the Aborigines because herepresents the law that is controlling their fate in the white culture. The director is also giving us many symbols or visual communication such as theconsistency of water in the film as well as, the overbearing control of darkness. The filmis shot in shadows and overall is very dark , almost forcing us to look beyond the obviousplot and storyline and into the meaning or what the film/director is trying to tell us. Thedarkness in the film can be seen as unconsciousness. It can also be seen as a predictionof the darkness that will occur in the world when the last wave comes. The last wavemeaning a giant tidal wave that will cover the earth , killing humanity. This idea issimilar to the Christian belief in the flood that was sent down centuries ago to destroy allthe evil in the world. Also, all the modern aspects of the movie (courtroom, Davidsoffice..etc) are filmed in light. While, all of the Aborigines scenes are filmed in darknessor shadows. Giving me the impression of something mysterious or not understood by thewhites concerning the Aborigines. The fact that all the modern scenes are filmed in lightcan also support the idea of the white culture being the predominate culture in the filmbut yet not dominant enough to take away the shadows(mysterious , mystical)aspect ofthe Aborigines. The lawyer, David, Also goes through a series of dreams and premonitions. Thisis stressing the idea of mind power and mystical strength that the Aborigines have. Inthat way they can be seen as the dominant culture. David is stuck between two worlds. The world he knows and understands and the other world that he is definitely a part ofbut does not understand. As he tries to grapple with the idea that he may be linked to theAborigines, his own cultural beliefs are changing. He is forming a complex view on life,a combination of ways of viewing the world by both the white Christians and theAborigines. The dream sequences in the film are sometimes difficult to distinguish from thewarped reality that is being portrayed. Overall, they do give us a chance to think andattempt to comprehend what is going through the mind of David. For he cannotdistinguish at times what is real and n ot real. But what is real depends on if you perceiveit as real as an individual. We will write a custom essay on The Last Wave by Peter Weir specifically for you for only $16.38 $13.9/page Order now To me, the film is saying that their is a definite cultural conflict between theChristians and the Aborigines living in Australia. Whichever one the viewer perceives asbeing dominant or subdominant, he will perceive the fact that their is a culture clash. The viewer may also see the idea that the Aborigines(tribal) are not understood in whitesociety and David is the only one who can. He is the link between the two worlds, and atthe same time he is the wall separating them. .u670f1f694359b154a88a6b88643a76a4 , .u670f1f694359b154a88a6b88643a76a4 .postImageUrl , .u670f1f694359b154a88a6b88643a76a4 .centered-text-area { min-height: 80px; position: relative; } .u670f1f694359b154a88a6b88643a76a4 , .u670f1f694359b154a88a6b88643a76a4:hover , .u670f1f694359b154a88a6b88643a76a4:visited , .u670f1f694359b154a88a6b88643a76a4:active { border:0!important; } .u670f1f694359b154a88a6b88643a76a4 .clearfix:after { content: ""; display: table; clear: both; } .u670f1f694359b154a88a6b88643a76a4 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u670f1f694359b154a88a6b88643a76a4:active , .u670f1f694359b154a88a6b88643a76a4:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u670f1f694359b154a88a6b88643a76a4 .centered-text-area { width: 100%; position: relative ; } .u670f1f694359b154a88a6b88643a76a4 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u670f1f694359b154a88a6b88643a76a4 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u670f1f694359b154a88a6b88643a76a4 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u670f1f694359b154a88a6b88643a76a4:hover .ctaButton { background-color: #34495E!important; } .u670f1f694359b154a88a6b88643a76a4 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u670f1f694359b154a88a6b88643a76a4 .u670f1f694359b154a88a6b88643a76a4-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u670f1f694359b154a88a6b88643a76a4:after { content: ""; display: block; clear: both; } READ: Janis Joplin EssayOverall, I feel the film was good concerning the ideas behind the storyline. Butdue in part to the directors fetish for water and darkness, he almost destroys the storylineto me. And without the storyline, you cannot interpret the film in a well structured way. Also, the symbolism is so predominant, it points at the viewers lack of intelligence . Similar to someone repeating themselves while speaking over and over and over andover, merely to stress a point. Too bad by that time the point is beyond stressed it isalmost destroyed completely. Category: Music and Movies