Essay about Affirmative Action - 1384 Words

Affirmative Action has been an issue of contention since its inception during the Civil Rights struggles of mid 20th century America. Discrimination could no longer be tolerated and the Unites States government had an obligation to encourage equality at all levels of the social infrastructure. The main type of discrimination being addressed by Affirmative Action programs was racial discrimination. The Merriam Webster dictionary defines racism as: ‘a belief that race is the primary determinant of human traits and capacities and that racial differences produce an inherent superiority of a particular race.’ The Civil Rights Act of 1964, which prohibited discrimination of any kind, laid the foundation for the introduction of Affirmative Action†¦show more content†¦However, Affirmative Action was initially created to tackle the discrimination of blacks. Over the years, random testing has been conducted to analyze America’s social structure and the level of rac ial divide. The Fair Employment Council of Greater Washington Inc. did some testing between 1992 and 1994. The studies discovered that blacks were treated worse than whites 24 percent of the time when interviewing for jobs. In fact, when a car dealership conducted interviews, the black candidate was offered a car washing position while the white candidate, with identical qualifications, was offered a sales position. White males maintain 97 percent of the senior management positions in Fortune 1000 companies. The unemployment rate of whites is less than half that of blacks. The poverty rate in the black community hovers around 26 percent. The poverty rate for whites is 9 percent. The inequality between white and black America is alarming and Affirmative Action is desperately needed to establish some sense of equality. The fight for equal opportunity begins with the government, and all government agencies have made a concerted effort to establish Affirmative Action programs. The Unite d States Department of Labor offers this statement on its website: â€Å"For federal contractors and subcontractors, affirmative action must be taken by covered employers to recruit and advance qualified minorities, women, persons with disabilities, and covered veterans.Show MoreRelatedThe Affirmative Of Affirmative Action Essay1389 Words   |  6 Pages Many affirmative action efforts have been made since the end of the Civil War in order to remedy the results of hundreds of years of slavery, segregation and denial of opportunity for groups that face discrimination. Many African Americans such as President Barack Obama, Senator Cory Booker, the writer Toni Morrison, the literary scholar Henry Louis Gates, media star Oprah Winfrey, and rap star Jay-Z have achieved positions of power and influence in the wider society (Giddens, Duneier, AppelbaumRead MoreAffirmative Action1160 Words   |  5 PagesAffirmative Action Marlene S. Smith MGT/434 October 28, 2013 Thomas Affirmative Action Affirmative action is an action that was purposefully designed to provide full and equal opportunities for employment and education for women, minorities, and other individuals belonging to disadvantaged groups. This paper will assess the rudiments of Affirmative Action as it applies to public and private sector employers. The paper will also evaluate what employers are subject to affirmative actionRead MoreAffirmative Action1559 Words   |  7 PagesRESEARCH PAPER AFFIRMATIVE ACTION INTRODUCTION Affirmative Action is an employment legislation protection system that is intended to address the systemized discrimination faced by women and minorities. It achieves this by enforcing diversity through operational intrusions into recruitment, selection, and other personnel functions and practices in America. Originally, Affirmative Action arose because of President Lyndon B. Johnson’s desire to integrate society on educationalRead MoreAffirmative Action1571 Words   |  7 PagesName Professor Name Management 11th November 2011 Affirmative Action Thesis: Affirmative Action has helped many women and minorities in entering the job market. Although there has been a lot of hue and cry regarding the benefits of the affirmative action and the suitability of candidates selected thorough affirmative action; research has shown that affirmative action is beneficial and the candidates of affirmative action perform as well as those who are selected through theRead MoreAffirmative Actions1078 Words   |  5 PagesRunning Head: AFFERMATIVE ACTION Affirmative Actions Affirmative action is an action taken by an organization to select on the basis of race, gender, or ethnicity by giving due preferences to minorities like women and races being not adequately represented under the existing employment. To make the presentation of all these compositions almost equal in proportion to do away the injustice done in the past. The Supreme Company need to design an affirmative action program in the light ofRead MoreAffirmative Action1759 Words   |  8 PagesAffirmative Action Right? Affirmative action has been around for decades. Some believe it isn’t fair but others do. Those who believe and agree with affirmative action tend to say, â€Å"The principle of affirmative action is to promote societal equality through the preferential treatment of socioeconomically disadvantaged people† (Bidmead, Andrew pg 3). Others that disagree with it and find it unfair simply see it as another form of discrimination, giving one group extra advantages based upon nothingRead MoreAffirmative Action And Its Effects On Affirmative1263 Words   |  6 PagesThroughout America there are many different views on the effects of affirmative action. Many see it as a negative policy which gives an unnecessary advantage to minorities in America. In a 2009 Pew Poll, â€Å"58% of African Americans agree† and only â€Å"22% whites agree† that there should be â€Å"preferential treatment to improve the position of blacks and other minorities† (Public Backs Affirmative Action†). Today affirmative action and other racial injustices tend to be in the spotlight quite often, suchRead MoreAffirmative Action774 Words   |  4 PagesAffirmative action is a practice that is intended to promote opportunities for the â€Å"protected class† which includes minorities, woman, and people with disabilities or any disadvantaged group for that matter. With affirmative action in place people of this protected class are given an even playing field in terms of hiring, promotion, as well as compensation. Historically, affirmative action is only known to have protected African Americans and woman; however that is not the case. Affirmative actionRead MoreAffirmative Action : Gender Action Essay970 Words   |  4 PagesAffirmative Action (ADD PROPER INTRO) Affirmative action, in its broadest sense, are attempts to help create labor and educational opportunities for groups that have been disadvantaged in the past. (Miriam Webster). Evidence has shown that throughout history, many groups have been discriminated against, and because of past (discriminations?), they continue to experience obstacles in areas of hiring, promotion, renting, buying, gaining education, and everyday economic activities. Thus, affirmativeRead MoreAffirmative Action Is An Action Or Policy? Essay1774 Words   |  8 Pages Affirmative Action remains one of the more complicated and controversial topics dealt with in American society. Affirmative Action is an action or policy designed to protect specific groups who suffer from discrimination, and provide them with programs and special opportunities. These government or private programs were designed to set right historical injustices towards the members of these groups who have suffered things like employment and e ducational disadvantages from racial discrimination

Many Years Ago People Have Wonder About Witches And What

Many years ago people have wonder about witches and what they do. Salem, Massachusetts held one of the biggest witch trials in history since 1692 but yet have never found the rea-son why it was started in the first place. Researchers have discovered some information about those witches throughout the years. Still they have not figured out what was the whole rea-son behind the trials in 1692 and after those trials a lot more trials were more secretive unlike the Salem witches tri-als in 1692. New England, home of the biggest witches in all of histo-ry. Many wonder could it have been that England influence all of witchcraft in 1692 during or maybe even before the Salem trials. New England has had many witch trials way before the Salem trials†¦show more content†¦Except New England never made it such a big thing like how Sa-lem handles it. These trials in Salem were never done the proper way because the girls would just call out random people and those victims were sent it jail or hanged. Yet if there was someone to confess they were sent free. Many wonder why they never gave a chance to say their part of the story just like the girls such as they never had evidence. That was one of the reasons why it was talked about (Misogny Ergot 31). Any who was against witchcraft was ether the rich or those who worship only one God. Others who blamed people of witchcraft were in it to own land for them. Those that were victims of all that happened in Salem during 1692 trials were left nothing. Many colonists did not really like anybody who practices the magic. They thought they were the cause of fail-ure of life, for example crop failure and baby defects. Many families were left without homes when they were released from jail. No one really had the right to explain themselves if they were accused at the Salem trials the judge did not allow it. It was ether to confess and be free or commit that there were was no part of any witchcraft around and be hanged. Yet confessing would still ruin anybody’s reputation no matter how hard they tried to prove others that they really did not do it in reality. Many just thought it was easier to say nothing and let the girls confess when itShow MoreRelatedCotton Mather And Salem Witchcraf t Trials1033 Words   |  5 Pagesforty-three years later. It was mainly by his remorseless writing that he became one of the most notable of all New England Puritan ministers. Today Mather is often thought of as unsympathetic because of his part in the Salem witchcraft trials. Although he did not approve of all the trials, he had helped to stir up the wave of frantic fear by his Memorable Providences Relating to Witchcraft and Possessions. Later he further pursued his inquiries into satanic possession with â€Å"Wonders of the InvisibleRead MoreCharacter Development in Arthur Millers The Crucible Essay739 Words   |  3 Pagesdevil. Also many characters are hypocritical, they are good honest Christians but many cant even follow the Ten Commandments. How are you meant to survive in a society which is so hypocritical? Miller is safely addressing present day issues, by setting the drama in the past. He is exploring the McCarthy witch-hunts by setting his play in 16th century Salem, the audience can relate to what is happening in the present to what was happening over 300 years ago. AlsoRead MoreThe Fate Of Shakespeare s Oedipus The King 918 Words   |  4 PagesAre prophecies or fate self-fulfilling destiny? Is it predestined? Several of literatures have shown prophecies play an important role on shaping the fate. Oedipus the King by Sophocles and Macbeth by William Shakespeare are both known for tragic play; they both share a parallel phenomenon, of fate and prophecy. However, two protagonists desire is opposite, one destroy his own life trying to avoid while another destroy his life by trying to fulfill the destiny. Sophocles portrays Oedipus whoseRead MoreArgumentative Essay On How To Hang A Witch834 Words   |  4 PagesHave you ever wonder where the descendants of historically famous people are? In How to Hang a Witch by Adrian Mather, a descendant of Cotton Mather tackles the effect of Salem witch trial more than 300 years after it took place. In the book, Samantha Mather was a direct descendant of the men responsible for spreading fear of witchcr aft. Her stepmom had forced her to move back to her dead grandma house in Salem, Massachusetts from New Cork city, because of the expensive medical bill for his dad comaRead MoreThe Myth Of The Witch1691 Words   |  7 Pagesbetween the years 1430 and 1660. Before this time period, witchcraft, sorcery, and maleficium (magic) were dismissed as false superstition. Gradually, much of Medieval Europe began seriously believing that they were dealing with an omnipresent, uncontrollable threat of as many as â€Å"ten thousand old women in a troop†¦ instructed [in] their arts and perverse sorceries by the devil himself.† By the end of the fifteenth century, people around Europe were growing increasingly nervous about witchcraft andRead MoreThe Invisible World By The Salem Witch Trials1559 Words   |  7 PagesDuring the Salem Witch Trials, Bridget Bishop was not granted a fair trial due to legal issues with the court proceedings. If this trial were to happen again in modern time the trail and out come would have been drastically different. The Invisible World by Cotton Mather is an excellent example of how Bridget Bishop was granted a fair trail during the Salem Witch Trials. Cotton Mather was a very well educated man and respected member of the community. He graduated from Harvard at 16 with his undergraduateRead MorePuritan Writers : The Wonders Of The Invisible World1238 Words   |  5 PagesCotton Mather is one of the best known Puritan writers for his work The Wonders of the Invisible World. Mather gives the outside world a glimpse into what the Salem Witch trials were like and how they conducted their way of figuring out who was a witch in their colony. The Wonders of the invisible world brought the audiences into the firsthand experience of a trial and made them experience it from the viewpoint of one of the citizens of that colony. Mather specifically focuses on the trial of MarthaRead MoreBook Report On The Night Sky 1725 Words   |  7 Pagesgame inspiration. Halloween may have past, but that doesn’t mean that the spooky goings on have gone anywhere. Delving into the darker side of the world’s online casino portals, we have compiled a list of online slot games that can deliver plenty of chills and thrills this December. No. 1 – Nightmare on Elm Street It is safe to say that you are going to want to put the kids to bed before you play this game. Based on the frightening film that gave millions of people nightmares during the 1980s, NightmareRead MoreThe Salem Witch Trials : A Day By Day Chronicle Of A Community Under Siege Essay1671 Words   |  7 PagesThe book I have chosen to write about is â€Å"The Salem Witch Trials: A Day by Day Chronicle of a Community Under Siege† written by Marilynne K. Roach and published in 2002. Marilynne K. Roach is the president of the Historical Society of Watertown and a member of the Watertown Historical Commission board, she also is an active board member and a curator of the Salem Witch Museum. She has multiple books that have been published about the Salem and the trials that occurred in the late 17th and early 18thRead MoreBridget Bishop s Side Of The Invisible World1896 Words   |  8 PagesBishop’s side of the story on purpose. In 1962, Mather wrote a book titled The Wonders of the Invisible World. He wrote the document in an organized and professional manner so that it could be credited it as an official record and taken seriously. Inside of this book was a section titled â€Å"The Tryal of Bridget Bishop†, which specifies the events that took place during Bridget Bishop’s trial (Walker). Mather writes in detail about the case of Bridget Bishop in order to provide an account of the outrageous

Anaemia Free Essays

Abstract Background: Anaemia is common worldwide specially in developing countries where nutrient deficiencies are prevalent. It is a common problem in the outpatient set but it’s always neglected and taken lightly which can cause hyperdynamic circulation disturbances and raise the rate of morbidity and mortality. Aim: To determine the prevalence of microcytic Hypochromic anaemia in medicine emergency room casualty in academy teaching hospital. We will write a custom essay sample on Anaemia or any similar topic only for you Order Now Method: This is a descriptive cross-sectional study which was done in the Academy Teaching Hospital in which 75 of the emergency room patients participated in the study. The state of nutrition of the patients was evaluated by a questionnaire answered by the patients. Chapter One Introduction and Literature Review 1. 1 Introduction Anaemia Anaemia is defined as the reduction in the oxygen-transporting capacity of blood, which usually stems from a reduction of the total circulating red cell mass to below normal amounts. Blood haemoglobin level is below 13. 5 g/dl in an adult male and below 11. 5 g/dl in an adult female. (1) Classification: Classified according to: 1. Causes: a. Inadequate production of RBC. b. Blood loss anaemia: * Acute: due to acute hemorrhage. * Chronic: due to GIT bleeding, menorrhagia. . Excessive destruction of RBC (haemolysis). 2. Morphology: a. Microcytic: * Iron deficiency. * Thalassemia. * Sideroblastic. b. Microcytic: * Folate deficiency. * B12 deficiency. c. Normocytic: * Aplastic anaemia. * Myelodysplastic anaemia. There are many undiagnosed cases of anaemia that if left undetected can lead to several complications, those include: (2) 1. Infections: people with the anaemia are more susceptible to getting infections from viruses and bacteria. 2. Severe bleeding: if bleeding is severe, internal and excessive then death can ensue if a blood transfusion is not given and the cause of the bleeding is not treated. . Stroke: if haemoglobin is defective, it can damage the walls of the red blood vessels and this can result in narrowing or even blockages in the brain, which can lead to serious, life threatening strokes. (2) Microcytic Hypochromic Anaemia Microcytic anemia is a blood disorder characterized by small red blood cells (erythrocytes) which have insufficient haemoglobin and hence have a reduced ability to carry oxygen through the body. The red blood cells are small due to a failure of haemoglobin synthesis or insufficient quantities of haemoglobin available. (3) Classification: 1. Iron deficiency anaemia . Sideroblastic anaemia. 3. Thalassemia. Iron deficiency anaemia It’s estimated to be the m ain cause of anaemia affecting about 10% of the population in developed countries and 25-50% in developing countries. The prevalence of iron deficiency anemia in the United States was 2 percent in adult men, but was found to be more common in child-bearing women age. (4) Total body iron content is about 2gm for females, and 6gm for males. Most of the iron within the body is found in hemoglobin within erythrocytes (80%), with the remainder being found in myoglobin and iron containing enzymes. Iron is stored in liver, spleen, bone marrow and skeletal muscle. This iron storage pool contains on average 15-20% of total body iron. (4) Iron is transported in the plasma by an iron binding protein called transferrin. In normal individuals, transferrin is about 33% saturated with iron. Dietary iron is obtained either from inorganic sources or animal sources. Dietary iron enters intestinal cells via specific transporters. The iron is then used by the cell, stored as ferritin or transferred to the plasma. (4) Erythropoiesis is the development process in which new erythrocytes are produced, through which each cell matures in about 7 days. Through this process erythrocytes are continuously produced in the red bone marrow of large bones, at a rate of about 2 million per second in a healthy adult. The blood’s red color is due to the spectral properties of the hemic iron ions in hemoglobin. The red blood cells of an average adult human male store collectively about 2. 5 grams of iron, representing about 65% of the total iron contained in the body. (5)(6) Causes: * Poor intake. * Decreased absorption (celiac disease, gastrectomy). * Increased demand in growing adolescents and pregnancy. * Blood loss from GIT due to: * Hookworm infestation. Erosions associated with NSAID, peptic ulcer or neoplastic disease. * Hemorrhoids. * Blood loss from irregular or excessive menstruation. Symptoms and signs (7) Symptoms may include: * Fatigue. * Shortness of breath * Lightheadedness. * Palpitations. * Dizziness. * Chest pain. * Blurred vision. * Sleep disturbance. Signs may include: * Rapid heart rate. * Low blood pressure. * Rap id breathing. * Pale conjunctiva. * Cold skin. * Enlargement of the spleen. Diagnosis of iron deficiency anaemia: * Complete blood count and color: with iron deficiency anaemia red blood cells are smaller and paler in color than normal. Hematocrit: This is the percentage of blood volume made up by red blood cells. Normal levels are generally 41% for adult women and 47% for adult men. These values may change depending on your age. * Haemoglobin: Lower than normal hemoglobin levels indicate anemia (12-16 g/dl in an adult male and 13. 7-17. 5 g/dl in an adult female). * Ferritin: This protein helps store iron in your body, and a low level of ferritin usually indicates a low level of stored iron. Some tests might be done to detect the underlying cause, like: * Endoscopy: Often to check for bleeding from a hiatal hernia, an ulcer or the stomach. Colonoscopy: To rule out lower intestinal sources of bleeding. * Ultrasound: Women may also have a pelvic ultrasound to look for the cause of ex cess menstrual bleeding, such as uterine fibroids. (8)(9) Sideroblastic anaemia It is a disease in which the bone marrow produces ringed sideroblasts rather than healthy red blood cells (erythrocytes). [10] In Sideroblastic anemia, the body has iron available but cannot incorporate it into hemoglobin, which red blood cells need to transport oxygen efficiently. Sideroblasts are atypical, abnormal nucleated erythroblasts (precursors to mature red blood cells) with granules of iron accumulated in perinuclear mitochondria. [11] Sideroblasts are seen in aspirates of bone marrow. Causes: * Failure to completely form heme molecules, This leads to deposits of iron in the mitochondria that form a ring around the nucleus of the developing red blood cell. * Toxins: lead, copper or zinc poisoning * Drug-induced: ethanol, isoniazid, chloramphenicol, cycloserine, Oral Contraceptives * Nutritional: pyridoxine (Vitamin B6) or copper deficiency * Diseases: Rheumatoid arthritis, or multiple myeloma Genetic: ALA synthase deficiency (X-linked, associated with ALAS2)[12] Symptoms and signs: * Pale skin, eyelids and lips. * Fatigue and weakness. * Dizziness. * Enlarged liver and/or spleen. Diagnosis: Ringed sideroblasts are seen in the bone marrow. Laboratory findings: * Increased ferritin levels * Normal total iron-binding capacity * Hematocrit of about 20-30% * Serum Iron: High * High transferrin saturation * The mean corpuscular volume or MCV is usually normal or low. * With lead poisoning, see coarse basophilic stippling of red blood cells on peripheral blood smear * Specific test: Prussian Blue stain of RBC in marrow. Shows ringed sideroblasts. * can also cause microcytic hypochromic anemia. (12) Thalassemia It is a group of inherited autosomal recessive blood disorders that originated in the Mediterranean region. In Thalassemia the genetic defect, which could be either mutation or deletion, results in reduced rate of synthesis, or no synthesis of one of the globins chains that make up hemoglobin. This can cause the formation of abnormal hemoglobin molecules, thus causing anemia, the characteristic presenting symptom of the Thalassemia. (13) Symptoms and signs: * Fatigue and weakness. * Shortness of breath. * Pale appearance. Irritability. * Yellow discoloration of the skin. * Facial bone deformities. * Slow growth. * Abdominal swelling. * Dark urine. (14) Diagnosis: * Blood tests. * Prenatal screening. (14) Laboratory findings: * A low level of red blood cells * Smaller than expected red blood cells * Pale red blood cells * Red blood cells that are varied in size and shape * Red blood cells with uneven hemoglobin distribution, which gives the cells a bull’s-eye appearance under the microscope. (14) 1. 2 Literature Review A study was done in Italy about prevalence and incidence and types of mild anaemia in the elderly. The objectives of this study were to estimate the prevalence and incidence of mild grade anemia and to assess the frequency of anemia types in the elderly. Design and Methods: This was a prospective, population-based study in all residents 65 years or older in Biella, Italy. Results: Blood test results were available for analysis from 8,744 elderly. Hemoglobin concentration decreased and mild anemia increased steadily with increasing age. Mild anemia (defined as a hemoglobin concentration of 10. 0-11. 9 g/dL in women and 10. 0-12. 9 g/dL in men) affected 11. % of the elderly included in the analysis, while the estimated prevalence in the entire population was 11. 1%. Before hemoglobin determination, most mildly anemic individuals perceived themselves as non-anemic. Chronic disease anemia, Thalassemia trait, and renal insufficiency were the most frequent types of mild anemia. (15) A study was done in emergency ward, Mulago Hospital, Uganda. Anaemia is a common problem in Africa, with prevalence ranging from 21. 1% to 64. 4% 16-21 and a significant impact on morbidity and mortality. 22,23 in patients with AIDS low haemoglobin levels are associated with poor outcomes. 4-27 However, anaemia in Africa has multiple causes, with infectious diseases such as HIV, tuberculosis and malaria contributing significantly to the anaemia burden. 28 Hookworm is a major contributor to anaemia and even light hookworm loads are associated with low haemoglobin levels, 29-33 although Lewis et al. reported that hookworm was not a common cause of anaemia among medical patients in Malawi. In a cross-sectional descriptive study 395 patients were recruited by systematic random sampling and their socio-demographic characteristics and clinical details collected. A complete blood count and peripheral film examination were done and stool examined for hookworm ova.. Of the patients 255 (64. 6%) had anaemia. The prevalence was higher among males (65. 8%) than females (63. 7%). Fatigue (odds ratio (OR) 2. 1, confidence interval (CI) 1. 37 – 3. 24), dizziness (OR 1. 64, CI 1. 07 – 2. 44), previous blood transfusion (OR 2. 83, CI 1. 32 – 6. 06), lymphadenopathy (OR 2. 99, CI 1. 34 – 6. 66) and splenomegaly (OR 5. 22, CI 1. 78 – 15. 28) were significantly associated with anaemia. Splenomegaly, low body mass index (BMI) (19) and being HIV positive were independently associated with anaemia. The commonest type of anaemia was Hypochromic microcytic (34. 1%). Only 10. 6% of anemic patients had hookworm infestation. (34) A study was done in north Vietnam was proposed to assess the prevalence of iron deficiency and anemia and associated risk factors in a community-based sample of women living in a rural province of northwest Vietnam. A cross-sectional survey, comprised of written questionnaires and laboratory analysis of hemoglobin (Hb), ferritin, transferrin receptor, and stool hookworm egg count, was undertaken, and the soluble transferrin receptor/log ferritin index was calculated. Of 349 non-pregnant women, 37. 3% were anemic (Hb 12 g/dL), and 23. 10% were iron deficient (ferritin 15 ng/L). Hookworm infection was present in 78. 15% of women, although heavy infection was uncommon (6. 29%). Iron deficiency was more prevalent in anemic than non-anemic women (38. 21% versus 14. 08%, P 0. 001). Consumption of meat at least three times a week was more common in non-anemic w omen (51. 15% versus 66. 67%, P = 0. 042). Mean ferritin was lower in anemic women (18. 99 versus 35. 66 ng/mL, P 0. 001). There was no evidence of a difference in prevalence (15. 20% versus 17. 23%, P = 0. 629) or intensity (171. 7 versus 129. 93 eggs/g, P = 0. 412) of hookworm infection between anemic and non-anemic women. (35) In the United States a study was done to determine the prevalence of iron deficiency and iron deficiency anemia in the US population. A total of 24 894 persons aged 1 year and older examined in the third National Health and Nutrition Examination Survey (1988-1994). Iron deficiency, defined as having an abnormal value for at least 2 of 3 laboratory tests of iron status (erythrocyte protoporphyrin, transferrin saturation, or serum ferritin); and iron deficiency anemia, defined as iron deficiency plus low hemoglobin. Nine percent of toddlers aged 1 to 2 years and 9% to 11% of adolescent girls and women of childbearing age were iron deficient; of these, iron deficiency anemia was found in 3% and 2% to 5%, respectively. These prevalences correspond to approximately 700000 toddlers and 7. 8 million women with iron deficiency; of these, approximately 240 000 toddlers and 3. 3 million women have iron deficiency anemia. Iron deficiency occurred in no more than 7% of older children or those older than 50 years, and in no more than 1% of teenage boys and young men. Among women of childbearing age, iron deficiency was more likely in those who are minority, low income, and multiparous. (36) Chapter Two Justification * Anaemia is common worldwide specially in developing countries where nutrient deficiencies are prevalent. * Nutritional iron deficiency anaemia is difficult to control in Sudan due to poor socio-economic status and this leads to the progression of it. * Anaemia is a common problem in the outpatient set but it’s always neglected and taken lightly. * Undetected anaemia can cause hyperdynamic circulation disturbances and raise the rate of morbidity and mortality. Chapter Three Objectives: General: * To determine the prevalence of anaemia in medicine emergency room (ER) casualty in academy teaching hospital. Specific: * To determine the prevalence of microcytic Hypochromic anaemia in medicine emergency room casualty in academy teaching hospital. * To determine the greatest age group of the sample size that presents at the medicine emergency room. * To determine the number of meals per day in relation to the anaemia. * To determine the greatest gender risk group for the microcytic Hypochromic anaemia. Chapter Four Methodology 4. 1 Study Design: A cross-sectional descriptive study. 4. 2 Study Period: The study was conducted in a period from the first of October till the end of December. 4. 3 Study Area: The study was done in the emergency room of the Academy Teaching Hospital located in Al-sahafa East. 4. 4 Study Population: Patients present at the medicine emergency room of the Academy Teaching Hospital were included in the study during the study period 2011-2012. Patients present at the outpatient were excluded. 4. 5 Variables: Background variables: * Type of the anemia. * Gender in relation to the anaemia. Causes in relation to the anaemia. * Age in relation to the anaemia. 4. 6 Sampling Technique: Simple random sampling of 75 patients was done based on: * Age between 16-45 years. * Negative previous history of anaemia. * No history of blood disorder. * No pregnancy. 4. 7 Sample Size: All patients were willing to participate. A total of 75 patients participated in the study. 4. 8 Data collection Techniques and Tools: * a questionnaire including demographic data, symptoms, medical history, physical examination and nutritional status is given to each patient to be filled by him/her or an assistant. On enrolment of patients into the emergency room, 3 ml of peripheral blood will be collected in plastic container. * Blood samples will be sent to the lab for screening of anemia and its specific morphology using complete blood count test and platelet count. 4. 9 Data management and Analysis: To analyze the collected data, Statistical Package for Social Sciences (SPSS research software) will be used. Used to calculate the prevalence of anemia, through a pre-coded system. 4. 10 Ethical Consideration: * Ethical approval for the study was obtained from the ethical committee at the University of Medical Sciences Technology. Verbal consent was taken from individuals under the study. * The information used in this study is confidential and only used for the purpose of this research. Chapter Five Recommendation 1. Mandatory screening of blood for anaemia and microcytic Hypochromic anaemia. 2. Investigation for the causes of anaemia and follow up. 3. Iron supplements under doctor’s prescription are recommended for patients with less than three meals per day. 4. Education and spreading of awareness about the important sources of iron and harmful sides of soft drinks, tea and coffee. Chapter Nine References: 1. Mohammad Inam Danish. Medical diagnosis and management. Karachi institute of heart diseases, 2010. 2. Sited: http://www. vitalhealthzone. com/health/conditions/a/anaemia/06_complications_of_anaemia. html 3. Sited: http://www. websters-online-dictionary. org/definitions/microcytic+anemia 4. Vinay Kummar, Abul K. Abbas, Nelson Fausto. Basic pathology. 8th edition, 2007. 5. Laura Dean. Blood Groups and Red Cell Antigens. National Center for Biotechnology Information (NCBI), National Library of Medicine, National Institutes of Health, 2005. 6. Kabanova S, Kleinbongard P, Volkmer J, Andree B, Kelm M, Jax TW . Gene expression analysis of human red blood cells. International Journal of Medical Sciences 6, 2009 (4): 156–9. 7. Sited: http://www. emedicinehealth. com/anemia/page3_em. htm 8. Marks PW. Anemia. National Heart, Lung, and Blood Institute. Mayo Clinic, 2011 January 6. 9. Rochester, Minn. Laboratory reference values. Hematology group. Mayo Foundation for Medical Education and Research, 2011 January. 10. Sideroblastic Anemias: Anemias Caused by Deficient Erythropoiesis at Merck Manual of Diagnosis and Therapy Professional Edition 11. â€Å"Sideroblast† at Dorland’s Medical Dictionary 12. Aivado M, Gattermann N, Rong A, et al. X-linked sideroblastic anemia associated with a novel ALAS2 mutation and unfortunate skewed X-chromosome inactivation patterns. Blood Cells Mo, 2006. Dis. 37 (1): 40–5 13. Hemoglobinopathies and Thalassemias. 14. .mayo clinic staff, thalassemia. Mayo Foundation for Medical Education and Research (MFMER). , 1998-2012. 15. Mauro Tettamanti, Ugo Lucca, Francesca Gandini. Prevalence, incidence and types of mild anemia in the elderly. Haematol, 2010 November 1. 16. Adam I, Khamis AH, Elbashir MI. Prevalence and risk factors for anaemia in pregnant women of eastern Sudan. Trans R Soc Trop Med Hyg 2005; 99(10): 739-743. 7. Asobayire FS, Adou P, Davidsson L, Cook JD, Hurrell RF. Prevalence of iron deficiency with and without concurrent anemia in population groups with high prevalences of malaria and other infections: a study in Cote d’Ivoire. Am J Clin Nutr 2001; 74(6): 776-782. 18. Charlton KE, Kruger M, Labadarios D, Wolmarans P, Aronson I. Iron, folate and vitamin B12 status of an elderly South African population. Eur J Clin Nutr 1997; 51(7): 424-430. 19. Dicko A, Mantel C, Thera MA, et al. Risk factors for malaria infection and anemia for pregnant women in the Sahel area of Bandiagara, Mali. Acta Trop 2003; 89(1): 17-23. 0. Leenstra T, Kariuki SK, Kurtis JD, Oloo AJ, Kager PA, ter Kuile FO. Prevalence and severity of anemia and iron deficiency: cross-sectional studies in adolescent schoolgirls in western Kenya. Eur J Clin Nutr 2004; 58(4): 681-891. 21. Sserunjogi L, Scheutz F, Whyte SR. Postnatal anaemia: neglected problems and missed opportunities in Uganda. Health Policy Plan 2003; 18(2): 225-231. 22. Culleton BF, Manns BJ, Zhang J, Tonelli M, Klarenbach S, Hemmelgarn BR. Impact of anemia on hospitalization and mortality in older adults. Blood 2006; 107(10): 3841-3846. 23. Ma JZ, Ebben J, Xia H, Collins AJ. Hematocrit level and associated mortality in hemodialysis patients. J Am Soc Nephrol 1999; 10(3): 610-619. 24. Elliott AM, Halwiindi B, Hayes RJ, et al. The impact of human immunodeficiency virus on mortality of patients treated for tuberculosis in a cohort study in Zambia. Trans R Soc Trop Med Hyg 1995; 89(1): 78-82. 25. . Moore RD. Human immunodeficiency virus infection, anemia, and survival. Clin Infect Dis 1999; 29(1): 44-49. 26. O’Brien ME, Kupka R, Msamanga GI, Saathoff E, Hunter DJ, Fawzi WW. Anemia is an independent predictor of mortality and immunologic progression of disease among women with HIV in Tanzania. J Acquir Immune Defic Syndr 2005; 40(2): 219-225. 27. Sullivan PS, Hanson DL, Chu SY, Jones JL, Ward JW. Epidemiology of anemia in human immunodeficiency virus (HIV)-infected persons: results from the multistate adult and adolescent spectrum of HIV disease surveillance project. Blood 1998; 91(1): 301-308. 28. Morris CD, Bird AR, Nell H. The haematological and biochemical changes in severe pulmonary tuberculosis. Q J Med 1989; 73(272): 1151-1159. 29. Akhwale WS, Lum JK, Kaneko A, et al. Anemia and malaria at different altitudes in the western highlands of Kenya. Acta Trop 2004; 91(2): 167-175. 0. Bates I, McKew S, Sarkinfada F. Anaemia: a useful indicator of neglected disease burden and control. PLoS Med 2007; 4(8): e231. 31. Stoltzfus RJ, Albonico M, Chwaya HM, et al. Hemoquant determination of hookworm-related blood loss and its role in iron deficiency in African children. Am J Trop Med Hyg 1996; 55(4): 399-404. 32. Sturrock RF. Hookworm studies in Uganda: investigations at Teboke i n Lango District. East Afr Med J 1966; 43(10): 430-438. 33. Tatala S, Svanberg U, Mduma B. Low dietary iron availability is a major cause of anemia: a nutrition survey in the Lindi District of Tanzania. Am J Clin Nutr, 1998; 68(1): 171-178. 34. Japheth E Mukaya, Henry Ddungu, Francis Ssali, Tim O’Shea, Mark A Crowther. Prevalence and morphological types of anaemia and hookworm infestation in the medical emergency ward. SAMJ, S. Afr. med. J, 2009 December vol. 99 no. 12 Cape Town, 35. Sant- Rayn Pasricha, Sonia R. Caruana, Tran Q. Phuc, Gerard J. Casey, Damien Jolley. Anemia, Iron Deficiency, Meat Consumption, and Hookworm Infection in Women of Reproductive Age in Northwest Vietnam. Am J Trop Med Hyg, 2008 March vol. 78 no. 3 375-381. 36. Anne C. Looker, Peter R. Dallman, Margaret D. Carroll, Elaine W. Gunter, Clifford L. Johnson. Prevalence of Iron Deficiency in the United States. JAMA, 1997;277(12):973-976. Chapter Ten Appendix 10. 1. Questionnaire: Nutritional status: Prevalence of microcytic Hypochromic anaemia in medicine emergency room in Academy Teaching hospital : / /2011?. :______ : _____ : ________ : ________________ : ___________ : ___________________________ —————————————————————————— 1. _____________________________________. 2. ____________________________________________________________________________________. 3. ____________________________________. 4. __________________________________. ——————————————————— Ã¢â‚¬â€Ã¢â‚¬â€œ . * . _____________ * . ______________ * . ______________ * . ______________ * ( , ) ___________ * . _____________ * . _____________ * . _____________ * . _____________ * . _____________ _________________________. , . | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ( , , )| | | | | ( , , , ). | | | | | ( , , , , )| | | | | , , )| | | | | | | | | | ( , )| | | | | | | | | | , ___________________________________________________________________________________. —————————————————————————- : : ____. _____. : ____. _____. ____. _____. _______________________. ______________________. ____. _____. __________________________. : ______. _____. , __________. , ___________. ___________________. ____. ______. ______________________. __________________. , ________________________________________. , _______________________________________. How to cite Anaemia, Essay examples

Project Formulation and Business Planning

Question: Discuss about the Project Formulation and Business Planning. Answer: Introduction: The study has been conducted on the Indian Restaurant industry. An organization is opening an restaurant in India and the report has been made on providing an idea about the Indian restaurant industry. Opening a business, especially in India, is not an easy task. The competition is very high, as there already exist big organizations like KFC and McDonalds (Rao Parekh, 2016). It is essential for the organization to have the idea of the existing market and target audience. Based on the finding, the business plan of the restaurant needs to be designed. The report consist of the description of the restaurant such as the history of it, markets it will serve, the service and product it will provide, financial status and many more. In addition to that, the analysis of the business environment has been conducted. In this analysis, a systematic review of the business model with the KFC and McDonalds has been done. Business Description: History of the Business: The business is at the startup stage. The idea of opening the restaurant is feasible and the business models are credible. The business models are adequate for delivering the services or products to the targeted market (Majumdar et al., 2013). The restaurant has already been taking good response from the investors and the ideas behind the business are very innovative. Markets the Business Will Serve: In India, everyone is very particular about the food they eat. The market is full of opportunities but extreme precautions must be taken by the organization to attract the customer. The main target market for the restaurant will be families. The restaurant will serve both the vegetarian and non-vegetarian foods (Dutta et al., 2014). Business Type: The restaurant is a service business. The services can be considered as the term that demonstrates function that sustains the restaurant business. However, it does not generate a tangible commodity. In order to upgrade the service, the restart will make use of information communication and technology assets (Dogan et al., 2016). The restaurant will provide the service to the target audiences in and out of the restaurant. Service of the Restaurant: It provides fast casual, fine dining and casual dining services to the consumer (Axelsson, Malmberg Zhang, 2015). For each type of service, the restaurant will have different staffs. The fast casual can be observed as the fast food services but the food quality is much better and healthier. The fine dining and casual dining are kind of same services but different foods of different prices (Downs et al., 2013). The Reason behind Using the Service: The restaurant takes care of the consumers requirements in an adequate period (Bujisic, Hutchinson Parsa, 2014). The consumers do not need to remind the servers about refilling their drinks or taking orders. The welcoming service of the restaurant is very friendly. The waiters, managers and other staffs are available while the consumer experiences services (Tiwari Jindal, 2017). Financial Status: The capital that is needed to be starting the restaurant is already been organized. It has been observed that the ROI or return on investment will be positive, except the first year of the opening (Wang et al., 2016). Business Environment Analysis: Within this segment of the report the systematic review among the restaurant, KFC and McDonald has been conducted (Miller 2016). Within India, KFC and McDonalds are the biggest names in this industry. These two brand names are enough to catch the attraction of the consumers. In this situation, the industry must be able to define its brand in such way that it can attract its target audience and get a good hold in the market from the start (Jeong et al., 2016). In order to do the review the business models of the restaurant will be discussed first. The business model of the restaurant is consist of unique value proposition, target consumer base, marketing strategy, menu choices, financial projections, an assessment of competing restaurants. The restaurant is determined to provide the diners what the other restaurants do not have (Bujisic, Hutchinson Parsa, 2014). Even for getting hold in the market against big names like McDonald and KFC, the restaurant is destined to provide services to the consumer that they never experienced anywhere. In the next part, the menu of the restaurant comes up. As it has been already discussed that the restaurant will provide three kinds of services to the consumer, the total list of menu is very long (Tiwari Jindal, 2017). The restaurant has includes some of the lists in the menu that are different from the other competitors like KFC and McDonalds. It is estimated that with the promotions, it will be easy to have regular customers from the starting day. It will assist the restaurant to fulfill the projections for the future revenues. The expenses associated with the host, a part of restaurant operation, will be collected from the regular business from one of the three services (Axelsson, Malmberg Zhang, 2015). The potential future expansion of the sutra is very good. The marketing strategy of the restaurant will be very simple and consumer centric. The management will analyze the review of the consumers and marketing strategy will be developed on the findings. Begin discussions with nearby organizations in eatery's territory. A considerable lot of them get cooking for uncommon snacks or gatherings all the time. Offering them a rebate with the goal that they arrange from restriction is an incredible technique (Majumdar et al., 2013). In addition, eatery needs to ensure that it give them its full menu physically. Giving individuals an additional motivating force to attempt eatery is surprisingly is an awesome approach to transform them into steadfast clients. Typically, an offer of no less than twenty percent off is sufficient. Eatery can likewise attempt two for one deal, free tidbits and whatever else the proprietor can think about that would bring more individuals into eatery (Dogan et al., 2016). The marketing strategy of the business consists of analyzing the target consumer, competition, brand-development method and many more. Conclusion: From the above study, it can be concluded that the restaurant is going to be hit as soon as it starts providing services. It is very significant that restaurant owner understands the restaurant industry of India. In order to get a good hold onto the market from the beginning, proper promotions of the business is required. Every aspect of the business has been clearly covered within the study. However, it lacked in mentioning the incorporation of IT assists into the business environment. The competitors like McDonalds and KFC for generating future buying patterns and forecasting the sales effectively and widely use the information technology. Restaurant must make use of an central IT system that can track and control all the separate three services that it provides to the consumers. The report also lack in describing the marketing strategy. Though the components of the strategy has been identified, the insight or significant of those components are not present in the report. The resta urant has made a great decision by dividing the vegetarian section from the non-vegetarian section. In India, it is very important that the vegetarian and non- vegetarian foods do not mix with each other. Bibliography: Axelsson, L., Malmberg, B., Zhang, Q. (2015). On waiting, work-time and imagined futures: Theorising temporal precariousness among Chinese chefs in Swedens restaurant industry.Geoforum. Bujisic, M., Hutchinson, J., Parsa, H. G. (2014). The effects of restaurant quality attributes on customer behavioral intentions.International Journal of Contemporary Hospitality Management,26(8), 1270-1291. Dogan, H., Guney, D., Goller, V., Dogan, ?. (2016). Tourism Students environmental Concerns And Willingness To Pay More For Green Products In The Restaurant Industry: A Comparison Between Turkish And Portuguese Tourism Students.Publication name, 88. Downs, S. M., Thow, A. M., Ghosh-Jerath, S., McNab, J., Reddy, K. S., Leeder, S. R. (2013). From Denmark to Delhi: the multisectoral challenge of regulating trans fats in India.Public health nutrition,16(12), 2273-2280. Dutta, K., Parsa, H. G., Parsa, R. A., Bujisic, M. (2014). Change in consumer patronage and willingness to pay at different levels of service attributes in restaurants: A study in India.Journal of Quality Assurance in Hospitality Tourism,15(2), 149-174. Jeong, E., Jang, S. S., Day, J., Ha, S. (2014). The impact of eco-friendly practices on green image and customer attitudes: An investigation in a caf setting.International Journal of Hospitality Management,41, 10-20. Majumdar, D., Chintada, A., Sahu, J., Rao, C. C. (2013). Emissions of greenhouse and non-greenhouse air pollutants from fuel combustion in restaurant industry.International Journal of Environmental Science and Technology,10(5), 995-1006. Miller, C. (2016). An Analysis of the International Expansion of Burger King. Rao, G., Parekh, K. (2016). Impact of Quick Service Restaurants (QSR) such as McDonalds, KFC on smaller Indian eatery joints such as Udipi.Reflections-Journal of Management,2. Tiwari, P., Jindal, R. (2017). Job Satisfaction in Food and Beverage Industry.International Journal of Innovative Research and Development|| ISSN 22780211,6(1). Wang, Z., Mathiyazhagan, K., Xu, L., Diabat, A. (2016). A decision making trial and evaluation laboratory approach to analyze the barriers to Green Supply Chain Management adoption in a food packaging company.Journal of Cleaner Production,117, 19-28. Project Formulation and Business Planning Question: Discuss about the Project Formulation and Business Planning. Answer: Introduction Report on the market analysis includes various important aspects that are required in almost every type of industry or a company, especially when someone new is entering into the market of the country. Market analysis consists of various unique characteristics regarding a particular market in which the company wants to carry its business. All these factors included in the market analysis helps in taking several decisions for the sake of the business and all this is possible due to the collection of data done through this method. All the information collected through this method will help in determining various appropriate values related to the figure and the pricing of the product in the current situation of the market (Team, 2017). Description and Outlook ResMed is the Australian based manufacturing company. It manufactures a large variety of products related to the treatment of various sleep disorders. The company is the global manufacturer of CPAP, BI-PAP machines, masks, etc. being used for treating the people having any type of sleep disorder. The company also manufactures a large variety of respiratory products, etc. MR. Michael Farrell is the CEO of the company and MR. Robert Douglas is the president of the company. The company is delivering its services in more than one hundred countries across the world. Target Market With the help of the market analysis the data is collected from the different- different markets across the world. The data collected shows that the Sleep Apnea market is expanding rapidly and it is expected that the market will worth approximately $20 Billion by the year, 2017. The market of the U.S. is the largest market as if compared to many other markets across the different countries on a world-wide level, which uses the maximum products related to sleep disorders. ResMed is the leader company, which is manufacturing and delivering the best quality of products as well as services to its customers. ResMed holds approximately 70% share of the market by providing a large variety of products at a reasonable price along with the better monitoring devices and software for treating the patients. 65% to 70% share of the sleep apnea mask is occupied by the ResMed (Parmar, 2012). The company is expanding its business in almost all the countries and this complete process is dependent on v arious facts, which are as mentioned below. Characteristics: - The Company is providing a variety of products to its customers, depending upon the requirement of an individual. The company is manufacturing a variety of devices depending upon the age, sex, location, etc. of the patient. Breathing and the respiratory machines, masks, etc. all are available in different- different sizes and functioning. Therefore, one can select according to his/her requirement (Franklin, 2012). Market size: - As we know, the company is rapidly expanding its business world-wide. Various facilities like professional clinics and home health providers are being provided by the company, which are very beneficial for the people facing any type of sleep disorder. People across the world are availing all types of services being provided by the experts. The data collected recently shows that, approximately 20% people have been tested at their own place and rest of the people at the labs being operated by the professional of the company. Approximately six thousand professionals are working for the company across the world. Competitive Analysis In this section of market analysis the complete information about the competitors of the company is provided. It also includes the information about the variety of products being manufactured and delivered by other companies across the world. As we know, the market of the products being manufactured by the company is very high. The company has to face a large number of difficulties for competing with others those, who are delivering similar type of products in the market. The success of the company is dependent upon the reliability of the products, the support of the customers, reputation of the company in the market, etc. ResMed has a large number of competitors like Phillips, De Vilbiss, Nellcor Puritan Bennett, Fisher Paykel, etc., which are providing similar type of products in the market. The faith of the customers on the ResMed is one of the biggest supports for the company due to which more and more people are interested in buying ResMeds product. Covering the maximum share o f the market across the world the ResMed is providing high quality of products for providing solutions for the problems being faced by the people related to disorders of sleep (CSIMarket Company, 2017). The competitive analysis of the company consists of various factors which are as mentioned below: - Market: - ResMed holds a large share of the market by providing a large variety of products in the different markets of the world. Strength: - The best quality of products, i.e., CPAP, BI-PAP machines, masks, respiratory machines, etc. being manufactured by the company. Services provided by the company helps in generating faith among the customers, which is one of the largest strengths of the company. Target market importance: - The management of the company keeps on surveying about the latest technologies for the machines and about many other requirements of the people, which is not being provided by many other companies. Barriers: - The Company is facing many difficulties in enhancing its products or providing remote solutions to the customers for monitoring their devices easily. These are some of the barriers for the company responsible for slowing down the expansion of the company. These are the only factors responsible for affecting the future of the company. Environmental Analysis Environmental analysis is a tool used for the identification of various internal and the external factors affecting the working of the company. The environmental analysis consists of various factors but the four main factors are Technological environment, Regulatory environment, Economic environment and the last one is social environment. All these factors are as mentioned below. Technological environment The Company is using latest technology for the manufacturing process of the machines. The various devices being manufactured in the company are equipped with the latest technology, which is helpful for curing the patients (Research, 2014). Regulatory environment The management is responsible for adopting all the instructions given by the government of the country for the safety of the customers. Various regulations are being followed within a scaled Agile framework. The complete manufacturing process is done according to the guidelines of the countrys government and according to the stakeholders of the company. Economic environment Various steps have been taken by the management to control various economic factors affecting the overall working of the company. All these steps taken are responsible for minimizing the use of natural resources and helps in creating awareness among the employees of the company. Various policies are being introduced for the improvement of the economic factors. Social environment Tt describes various factors affecting the physical conditions of the company. It affects both the company as well as the people using the devices being delivered by the company.in this phase, the company is focusing and developing machines according to the requirement of the people belonging to different- different categories or groups. Projections Projection of the company is completely dependent upon the two main factors, i.e., the pricing and the market share of the company. In the market share we can say that while occupying the maximum share of the market the company is completely focused on the future growth of the company by enhancing their devices with the latest technology, so that each and every person can use and monitor his/her device easily. In the pricing section, the products of the company are easily available in the market at a very reasonable price, so that each and every person can avail them as per according to their need (Research, 2014). Regulations In this section, the safety measures are considered for the safety of the people using the variety of devices manufactured by the company. The products of the ResMed are adherence to FDA quality system regulation and are manufactured according to the manufacturing standards. The regulations fixed by the FDA are responsible for the safety of the people, using all those devices which are being manufactured, labelled and marketed by the company. All these regulations help the people in making an effective and efficient use of the device they have purchased from the company (Graves Lee, 2017). Data collection In this step, the complete information about each and every action of the company is recorded. Various purchases and sells made by the company across the world is collected in this phase. The successful accomplishment of this phase is dependent upon various factors which are as mentioned below. Customers: - Customers play an important role in collecting various types of information about the market. By making good and long lasting relations with the customers helps the company in the expansion of their business. Getting feedbacks from the customers also helps in making several important changes. Employees feedback: - In this step, the information is collected by the employees of the company about the various problems being faced by them and many other important changes required for the sake of the companys business. Internet: - With the help of the internet and many other social media channels, company can easily get connected with more and more customers, because this will help the company in attracting more and more people towards them, which directly influences the business of the company. Conclusion According to this report, we can say that, market analysis is must for the success of any type of business. With the help of the market analysis the company can easily fetch any type of detail from the market. This helps in representing the current status of the company in the market as well as it also expresses the current position of the market. All these factors are responsible for the success of the business. ResMed is the company providing the best quality of products and services to its customers, while keeping in mind about all the necessary requirements of the people. References CSIMarket Company. (2017). RMD Sales vs. its Competitors Q4 2016. Retrieved from https://csimarket.com/stocks/compet_glance.php?code=RMD Franklin, D. (2012). ResMed Secure in CPAP Position Despite Increased Challenges. Retrieved from https://blueshiftideas.com/reports/101209ResMedSecureinCPAPPositionDespiteIncreasedChallenges.pdf Graves, A., Lee, A. (2017). ResMed Named Global Leader in Remote Patient Monitoring. Retrieved from https://www.resmed.com/us/en/consumer/newsandinformation/news-releases/2017/resmed-named-global-leader-in-remote-patient-monitoring.html Parmar, A. (2012, July 26). Sleep Apnea Market to Double in 5 Years. Retrieved from https://www.medpagetoday.com/practicemanagement/practicemanagement/33924 Research, P. (2014, November). ResMed Inc (RMD: NYS): Analytics, Extensive Financial Metrics, and Benchmarks Against Averages and Top Companies Within its Industry. Retrieved from https://www.researchandmarkets.com/reports/3035404/resmed-inc-rmd-nys-analytics-extensive#rela7 Team, R. (2017). ResMed official website. Retrieved from https://www.resmed.com/: https://www.resmed.com/us/en/consumer.html

UC Prompt 1 Essay Examples

UC applications went through an overhaul this year, but that doesn’t mean we can’t learn anything from old essay examples written by recent UC students. UC applicants now have to write 4 short essays of the 8 prompts provided, but recent UC college students had to write 2 longer essays. One of which is: PROMPT #1: Describe the world you come from—for example, your family, community or school—and tell us how your world has shaped your dreams and aspirations. Here are 5 essay excerpts from UC Berkeley students from the Class of 2019: Lord of the Lords The flames flicker, vivacious and bright, growing taller and taller. My eyes watch them dance. They are beautiful and full of life. Fire can grow in the same way people can, absorbing some things while merely illuminating others. I watch the flames mount a moment more, before hurtling toward them, yelling my chant, â€Å"Zardi-ye man az toh, sorkhi-ye toh az man!† Keep reading. UCberkeley2019 I live in Corona, California; a small city that advertises itself as a bright landmark once notable for its exhilarating racetracks. However, there is neither much excitement in my town, nor is thee much to do. On rare occasions, the thrills and action occur at times of congestion on the 91 freeway, yet that still isnt exciting. Continue reading.AndyDC Reflecting back on my childhood, I have come to appreciate the little things that have led me to where I am today. My family was underprivileged growing up, but I did not feel it was a hindrance to my growth. I made the best of my childhood by capitalizing on the opportunities afforded to me. I am grateful for my economical childhood, as I believe it was a character-building experience. Read more. Rkfong I attend the Developing Virtue Boys School (DVBS) on the grounds of the City of Ten Thousand Buddhas, a large Buddhist monastery in rural Northern California, where rubbing elbows with monks, devoted laypeople and peacocks is the norm. Yes, my next door neighbors are monks.View full profile. Srergio It was my first day of first grade, the teacher spoke a different language, and strangers simply stared at me with their judging eyes. The kids tried talking to me, but since I didn’t understand English they just started laughing at me. My eyes filled with tears, my teacher immediately called home and moments later my mother came to take me home. As we walked to our small home in Modesto I couldn’t even look her in the eyes, I knew she was disappointed; I had failed.See profile. Interested in reading these students full UC essays that got them into UC Berkeley? Unlock all of them in one go with our UC Berkeley Package!Ourpremium plansoffer different level of profile access and data insights that can help you get into your dream school. Unlock any of ourpackagesor search ourundergraduate profile databaseto find specific profiles that can help you make an informed choice about where to apply! Not sure if you want to apply to the UCs yet? Do your research andbrowse throughprofiles of studentsaccepted to see essays, stats, and advice.See how they got in, and how you can too!

Free Essays on Panama

Country name conventional long form:Republic of Panama conventional short form:Panama local long form:Republica de Panama local short form:Panama Data code PM Government type constitutional democracy Capital Panama Administrative divisions 9 provinces (provincias, singular - provincia) and 2 territories* (comarca); Bocas del Toro, Chiriqui, Cocle, Colon, Darien, Herrera, Los Santos, Ngobe-Bugle*, Panama, San Blas*, and Veraguas Independence 3 November 1903 (from Colombia; became independent from Spain 28 November 1821) National holiday Independence Day, 3 November (1903) Constitution 11 October 1972; major reforms adopted April 1983 and in 1994 Legal system based on civil law system; judicial review of legislative acts in the Supreme Court of Justice; accepts compulsory ICJ jurisdiction, with reservations Suffrage 18 years of age; universal and compulsory Executive branch chief of state:President Mireya Elisa MOSCOSO Rodriguez (since 1 September 1999); First Vice President Arturo Ulises VALLARINO (since 1 September 1999); Second Vice President (Dominador) Kaiser Baldonero BAZAN (since 1 September 1999); note - the president is both the chief of state and head of government head of government:President Mireya Elisa MOSCOSO Rodriguez (since 1 September 1999); First Vice President Arturo Ulises VALLARINO (since 1 September 1999); Second Vice President (Dominador) Kaiser Baldonero BAZAN (since 1 September 1999); note - the president is both the chief of state and head of government cabinet:Cabinet appointed by the president elections:president and vice presidents elected on the same ticket by popular vote for five-year terms; election last held 2 May 1999 (next to be held NA May 2004) election results:Mireya Elisa MOSCOSO Rodriguez elected president; percent of vote - Mireya Elisa MOSCOSO Rodriguez (PA) 44%, Martin TORRIJOS (PRD) 37% note:government coalition - PRD, PLN, and Popular Nationalist Party Legislativ... Free Essays on Panama Free Essays on Panama Country name conventional long form:Republic of Panama conventional short form:Panama local long form:Republica de Panama local short form:Panama Data code PM Government type constitutional democracy Capital Panama Administrative divisions 9 provinces (provincias, singular - provincia) and 2 territories* (comarca); Bocas del Toro, Chiriqui, Cocle, Colon, Darien, Herrera, Los Santos, Ngobe-Bugle*, Panama, San Blas*, and Veraguas Independence 3 November 1903 (from Colombia; became independent from Spain 28 November 1821) National holiday Independence Day, 3 November (1903) Constitution 11 October 1972; major reforms adopted April 1983 and in 1994 Legal system based on civil law system; judicial review of legislative acts in the Supreme Court of Justice; accepts compulsory ICJ jurisdiction, with reservations Suffrage 18 years of age; universal and compulsory Executive branch chief of state:President Mireya Elisa MOSCOSO Rodriguez (since 1 September 1999); First Vice President Arturo Ulises VALLARINO (since 1 September 1999); Second Vice President (Dominador) Kaiser Baldonero BAZAN (since 1 September 1999); note - the president is both the chief of state and head of government head of government:President Mireya Elisa MOSCOSO Rodriguez (since 1 September 1999); First Vice President Arturo Ulises VALLARINO (since 1 September 1999); Second Vice President (Dominador) Kaiser Baldonero BAZAN (since 1 September 1999); note - the president is both the chief of state and head of government cabinet:Cabinet appointed by the president elections:president and vice presidents elected on the same ticket by popular vote for five-year terms; election last held 2 May 1999 (next to be held NA May 2004) election results:Mireya Elisa MOSCOSO Rodriguez elected president; percent of vote - Mireya Elisa MOSCOSO Rodriguez (PA) 44%, Martin TORRIJOS (PRD) 37% note:government coalition - PRD, PLN, and Popular Nationalist Party Legislativ...

Earthquakes Research Paper Example | Topics and Well Written Essays - 1000 words

Earthquakes - Research Paper Example As a result, pressure is build up where the plates collide or bend, and the rocks develop cracks or faults that allow them to release the buildup energy, because of the strain. Earthquakes can hence occur at the boundaries or even in middle of the plates, based on where the strain is build up. The paper also gives latest discoveries and unanswered question on how to tell the timing of an earthquake. Keywords: Collide, Earthquakes, Strain, Energy, Boundaries, Magnitude, Seismologists, Seismograph, Faults, Tectonic Plates Introduction Earthquakes are natural disasters that have devastating effects on the environment. They often go unnoticed, and only those with a magnitude capable of being detected are reported or felt on the earth’s surface. According to FEMA, earthquakes are sudden earth shakes or tremors that result from the shifting and breaking of subterranean rocks, as they release accumulated strain build up for a long period (n.d.). It results in immediate effects and th e secondary ones caused by the tremors. Major earthquakes are known to have occurred in Alaska, China, and Japan, but more severe cases are also common along the pacific’s known ring of fire towards the west and south coasts of USA. Millions of lives have been lost, damages worth billions of investment, and aftermath displacement of populations have been recorded over history. Geological Features of Earthquakes To understand the concept of earthquake development, one needs to go back to the study of the earth’s content. The structure of the earth can be categorized into four major components, the inner core (solid part made up of nickel and iron), the outer core (molten nickel and iron), the mantle (third layer from the inside and made up of molten rocks), and the outermost earth’s crust, which has the lightest components of all. The crust is known to host a lot of human welfares and is made up of different types of rocks depending on their origin. The thin laye r of crust and the top of the mantle make most of the earth’s surface. However, they appear as one entity, despite being made up of many entities or pieces to cover the earth surface. These pieces move around and along each other making the earth’s surface to be in a continuous slow motion. The number of pieces and their movement give the impression of pieces in a puzzle. The pieces are the tectonic plates and float on the molten rocks of the mantle. The tectonic plate theory: The entire earth is covered by Lithosphere that comprise of the continental and oceanic plates that are in constant motion. They slide over the uppermost layer of the mantle (plastic aesthenosphere), and end up causing a geological process where they interact, which explains the concept of continental drift and sea floor spreading. The tectonic plates create movements under, over, past, and away, rubbing each other along their boundaries, whose effects are plates interlocking, stretching or bendi ng where they fail to release the accumulated energy (Coppola, 2011). The boundaries of the plates are rough edges and made up of many faults from which the earthquakes initiate. When the plates collide, some of the rough boundaries interlock; the intense pressure may cause the rocks to heat up and bend to create hilly areas, or spontaneous break to form

Preventing Child Sexual Abuse Research Paper Example | Topics and Well Written Essays - 2500 words

Preventing Child Sexual Abuse - Research Paper Example One of the essential research parts of Tamera is the environmental restoration of a nation and the self-sufficiency of a larger society with healthy food on the basis of  Ã‚   assistance with all beings of the environment. Since 2007, the people of Tamera region have been working in the company of the perm culture specialists and the mountain farmer on this basis, constructing a widespread and diverse water landscape (Holzer, & Mà ¼ller, 1). A representation plan for landscape healing is being made that presents a real ecological way out for many regions of the globe: making a water landscape can undo a beginning desertification of a landscape. An intellectual water management is the best central aspect of it. This is attained with the building of decentralized, joined water preservation spaces; situated in the basins of a landscape - that are prepared out of natural construction equipments and harvest, store and control rain water in the soil or body of earth. In the subsequent y ears, Tamera inhabitants plan to construct a smallest amount of ten more preservation spaces in Tamera to be in a position to store or keep the winter rain. Therefore, the neighboring body of earth will be in a position to permanently refill with water. This is the only technique to make the greening and reforestation o f the landscape probable. The worldwide shortage of water, desertification, the food crisis, overflows all over the globe and huge fires are not natural disasters but the consequence of water negligence. The technological and ecological knowledge of how to provide all inhabitants on the globe with high quality water, with enough food and with sustainable energy is at present available.In Tamera, a water preservation landscape, constructed with natural substances, is in the process of being developed with the aid of the creative Perm culture professional called Sepp Holzer (Holzer, & Mà ¼ller, 1). The water preservation landscape harvests and stores rainwater, gives it duration to go under into the soil, therefore, regulating the entire water cycle. This in the long land prevents deforestation.In comparison   to the above given instances, Water Retention Landscapes can smoothen the progress of complete change by restoring the water cycles that can in nature supply fresh, uncontaminated and vitalized water in large quantity, even in the globes’   dry lands. The decentralized structure of retention space assists rainwater to remain on the land and seep into the ground. Healthy ecosystems can bring back around the retention or preservation spaces, and organic agriculture needing less synthetic irrigation and assorted reforestation are enabled (Anderson, p. 45-56).   

Santa Fe Grill Restaurant Survey Essay Example | Topics and Well Written Essays - 1750 words

Santa Fe Grill Restaurant Survey - Essay Example The mean values for X22 and X32 are 4.82963 and 0.348148148 respectively. To determine if the two mean are significantly different with an equal variance, a t-statistical analysis is undertaken. The one tail results give a t-critical of 1.647649 while the two tails gives a t-critical result of 1.964318. However; going by the one tail, the t-critical is 1.647649 compared with a significance level of 0.00, we accept the null hypothesis that the two means are statistically significant. According to the book page 498, this analysis was supposed to compare the level of satisfaction between male and female-considering the mean. However, from the results there is no substantial support for the null hypothesis to ascertain that the two means are equal, and hence we conclude that male customers are significantly more satisfied than female customers. The mean values of X21, X22 and X23 are 4.82963, 4.464198 and 3.785185. The null hypothesis is to test if the mean of the variables are significantly different. The p-value=3.59 while the significant level ÃŽ ±=o.05; therefore we accept the null hypothesis that the mean of the variables are significantly different (p-value>0.05). That is, the mean perceptions of males between the two restaurants do not differ significantly on satisfaction or likelihood of returning. Most customers at the restaurant do not like to party as this is revealed by 14 out of 450 strongly agreed to like partying. However, it is worth noting that some customers are influenced by friends before deciding on what to take while reasonable prices also influences the customer’s decision to take a meal at the restaurant. Among the respondents, at least half agreed that attractive interior and excellent food are some of the driving factors that they consider before entering a restaurant. This is something that Santa Fe Grill Restaurant has to contend with if it wants to maximize its profits and revenues. According to the frequency

Examining The Sound Navigation Technique Of Sonar Engineering Essay

Examining The Sound Navigation Technique Of Sonar Engineering Essay Sonar means sound navigation and ranging is a technique that uses sound propagation (usually underwater, as in Submarine navigation) to navigate, communicate with or detect other vessels. Two types of technology share the name sonar: passive sonar is essentially listening for the sound made by vessels; active sonar is emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of targets in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used in air for robot navigation, and SODAR upward looking in-air sonar) is used for atmospheric investigations. The term sonar is also used for the equipment used to generate and receive the sound. The acoustic frequencies used in sonar systems vary from very low (infrasonic) to extremely high (ultrasonic). The study of underwater sound is known as underwater acoustics or hydro acoustics History Although some animals (dolphins and bats) have used sound for communication and object detection for millions of years, use by humans in the water is initially recorded by Leonardo Da Vinci in 1490: a tube inserted into the water was said to be used to detect vessels by placing an ear to the tube.[citation needed] In the 19th century an underwater bell was used as an ancillary to lighthouses to provide warning of hazards. The use of sound to echo locate underwater in the same way as bats use sound for aerial navigation seems to have been prompted by the Titanic disaster of 1912. The worlds first patent for an underwater echo ranging device was filed at the British Patent Office by English meteorologist Lewis Richardson a month after the sinking of the Titanic, and a German physicist Alexander Behm obtained a patent for an echo sounder in 1913. Canadian Reginald Fessenden, while working for the Submarine Signal Company in Boston, built an experimental system beginning in 1912, a system later tested in Boston Harbor, and finally in 1914 from the U.S. Revenue (now Coast Guard) Cutter Miami on the Grand Banks off Newfoundland Canada. In that test, Fessenden demonstrated depth sounding, underwater communications (Morse Code) and echo ranging (detecting an iceberg at two miles (3 km) range). The so-called Fessenden oscillator, at ca. 500 Hz frequency, was unable to determine the bearing of the berg due to t he 3 meter wavelength and the small dimension of the transducers radiating face (less than 1 meter in diameter). The ten Montreal-built British H class submarines launched in 1915 were equipped with a Fessenden oscillator. During World War I the need to detect submarines prompted more research into the use of sound. The British made early use of underwater hydrophones, while the French physicist Paul Langevin, working with a Russian immigrant electrical engineer, Constantin Chilowski, worked on the development of active sound devices for detecting submarines in 1915 using quartz. Although piezoelectric and magnetostrictive transducers later superseded the electrostatic transducers they used, this work influenced future designs. Performance factors The detection, classification and localization performance of a sonar depends on the environment and the receiving equipment, as well as the transmitting equipment in an active sonar or the target radiated noise in a passive sonar. Sound propagation Sonar operation is affected by variations in sound speed, particularly in the vertical plane. Sound travels more slowly in fresh water than in sea water, though the difference is small. The speed is determined by the waters bulk modulus and mass density. The bulk modulus is affected by temperature, dissolved impurities (usually salinity), and pressure. The density effect is small. The speed of sound (in feet per second) is approximately: 4388 + (11.25 ÃÆ'- temperature (in  °F)) + (0.0182 ÃÆ'- depth (in feet)) + salinity (in parts-per-thousand ). This empirically derived approximation equation is reasonably accurate for normal temperatures, concentrations of salinity and the range of most ocean depths. Ocean temperature varies with depth, but at between 30 and 100 meters there is often a marked change, called the thermo cline, dividing the warmer surface water from the cold, still waters that make up the rest of the ocean. This can frustrate sonar, because a sound originating on one side of the thermo cline tends to be bent, or refracted, through the thermo cline. The thermo cline may be present in shallower coastal waters. However, wave action will often mix the water column and eliminate the thermo cline. Water pressure also affects sound propagation: higher pressure increases the sound speed, which causes the sound waves to refract away from the area of higher sound speed. The mathematical model of refraction is called Snells law. If the sound source is deep and the conditions are right, propagation may occur in the deep sound channel. This provides extremely low propagation loss to a receiver in the channel. This is because of sound trapping in the channel with no losses at the boundaries. Similar propagation can occur in the surface duct under suitable conditions. However in this case there are reflection losses at the surface. In shallow water propagation is generally by repeated reflection at the surface and bottom, where considerable losses can occur. Sound propagation is affected by absorption in the water itself as well as at the surface and bottom. This absorption depends upon frequency, with several different mechanisms in sea water. Long-range sonar uses low frequencies to minimize absorption effects. The sea contains many sources of noise that interfere with the desired target echo or signature. The main noise sources are waves and shipping. The motion of the receiver through the water can also cause speed-dependent low frequency noise. Scattering When active sonar is used, scattering occurs from small objects in the sea as well as from the bottom and surface. This can be a major source of interference. This acoustic scattering is analogous to the scattering of the light from a cars headlights in fog: a high-intensity pencil beam will penetrate the fog to some extent, but broader-beam headlights emit much light in unwanted directions, much of which is scattered back to the observer, overwhelming that reflected from the target (white-out). For analogous reasons active sonar needs to transmit in a narrow beam to minimize scattering. Target characteristics The sound reflection characteristics of the target of an active sonar, such as a submarine, are known as its target strength. A complication is that echoes are also obtained from other objects in the sea such as whales, wakes, schools of fish and rocks. Passive sonar detects the targets radiated noise characteristics. The radiated spectrum comprises a continuous spectrum of noise with peaks at certain frequencies which can be used for classification. Countermeasures 1) Active countermeasures may be launched by a submarine under attack to raise the noise level, provide a large false target, and obscure the signature of the submarine itself. 2) Passive countermeasures include: There is a mounting noise-generating device on isolating devices. We use a sound-absorbent coating on the hulls of submarines, for example anechoic tiles. Active sonarà   Active sonar uses a sound transmitter and a receiver. When the two are in the same place it is monostatic operation. When the transmitter and receiver are separated it is bistatic operation. When more transmitters (or more receivers) are used, again spatially separated, it is multistate operation. Most sonars are used monostatically with the same array often being used for transmission and reception. Active son buoy fields may be operated multistatically. Active sonar creates a pulse of sound, often called a ping, and then listens for reflections (echo) of the pulse. This pulse of sound is generally created electronically using a sonar Projector consisting of a signal generator, power amplifier and electro-acoustic transducer/array. A beam former is usually employed to concentrate the acoustic power into a beam, which may be swept to cover the required search angles. Generally, the electro-acoustic transducers are of the Tonpilz type and their design may be optimized to achieve maximum efficiency over the widest bandwidth, in order to optimize performance of the overall system. Occasionally, the acoustic pulse may be created by other means, e.g. (1) Chemically using explosives (2) Air guns (3) Plasma sound sources. To measure the distance to an object, the time from transmission of a pulse to reception is measured and converted into a range by knowing the speed of sound. To measure the bearing, several hydrophones are used, and the set measures the relative arrival time to each, or with an array of hydrophones, by measuring the relative amplitude in beams formed through a process called beam forming. Use of an array reduces the spatial response so that to provide wide cover multibeam systems are used. The targets signal (if present) together with noise is then passed through various forms of signal processing, which for simple sonars may be just energy measurement. It is then presented to some form of decision device that calls the output either the required signal or noise. This decision device may be an operator with headphones or a display, or in more sophisticated sonar this function may be carried out by software. Further processes may be carried out to classify the target and localize it, as well as measuring its velocity. The pulse may be at constant frequency or a chirp of changing frequency (to allow pulse compression on reception). Simple sonars generally use the former with a filter wide enough to cover possible Doppler changes due to target movement, while more complex ones generally include the latter technique. Since digital processing became available pulse compression has usually been implemented using digital correlation techniques. Military sonars often have multiple beams to provide all-round cover while simple ones only cover a narrow arc, although the beam may be rotated, relatively slowly, by mechanical scanning. Particularly when single frequency transmissions are used, the Doppler effect can be used to measure the radial speed of a target. The difference in frequency between the transmitted and received signal is measured and converted into a velocity. Since Doppler shifts can be introduced by either receiver or target motion, allowance has to be made for the radial speed of the searching platform. One of the useful small sonar is similar in appearance to a waterproof flashlight. The head is pointed into the water, a button is pressed, and the device displays the distance to the target. Another variant is a fish finder that shows a small display with shoals of fish. Some civilian sonars approach active military sonars in capability, with quite exotic three-dimensional displays of the area near the boat. When active sonar is used to measure the distance from the transducer to the bottom, it is known as echo sounding. Similar methods may be used looking upward for wave measurement. Active sonar is also used to measure distance through water between two sonar transducers or a combination of a hydrophone (underwater acoustic microphone) and projector (underwater acoustic speaker). A transducer is a device that can transmit and receive acoustic signals (pings). When a hydrophone/transducer receives a specific interrogation signal it responds by transmitting a specific reply signal. To measure distance, one transducer/projector transmits an interrogation signal and measures the time between this transmission and the receipt of the other transducer/hydrophone reply. The time difference, scaled by the speed of sound through water and divided by two, is the distance between the two platforms. This technique, when used with multiple transducers/hydrophones/projectors, can calculate the relative positions of static and moving objects in water. In combat situations, an active pulse can be detected by an opponent and will reveal a submarines position. A very directional, but low-efficiency, type of sonar makes use of a complex nonlinear feature of water known as non-linear sonar, the virtual transducer being known as a parametric array. Project ARTEMIS Project ARTEMIS was one-of-a-kind low-frequency sonar for surveillance that was deployed off Bermuda for several years in the early 1960s. The active portion was deployed from a World War II tanker, and the receiving array was a built into a fixed position on an offshore bank. Transponder This is an active sonar device that receives a stimulus and immediately retransmits the received signal or a predetermined one. Passive sonar Passive sonar listens without transmitting. It is often employed in military settings, although it is also used in science applications, e.g., detecting fish for presence/absence studies in various aquatic environments see also passive acoustics and passive radar. In the very broadest usage, this term can encompass virtually any analytical technique involving remotely generated sound, though it is usually restricted to techniques applied in an aquatic environment. Identifying sound sources Passive sonar has a wide variety of techniques for identifying the source of a detected sound. For example, U.S. vessels usually operate 60 Hz alternating current power systems. If transformers or generators are mounted without proper vibration insulation from the hull or become flooded, the 60 Hz sound from the windings can be emitted from the submarine or ship. This can help to identify its nationality, as most European submarines have 50 Hz power systems. Intermittent sound sources (such as a wrench being dropped) may also be detectable to passive sonar. Until fairly recently, an experienced trained operator identified signals, but now computers may do this. Passive sonar systems may have large sonic databases, but the sonar operator usually finally classifies the signals manually. A computer system frequently uses these databases to identify classes of ships, actions (i.e. the speed of a ship, or the type of weapon released), and even particular ships. Publications for classification of sounds are provided by and continually updated by the US Office of Naval Intelligence. Noise limitations Passive sonar on vehicles is usually severely limited because of noise generated by the vehicle. For this reason, many submarines operate nuclear reactors that can be cooled without pumps, using silent convection, or fuel cells or batteries, which can also run silently. Vehicles propellers are also designed and precisely machined to emit minimal noise. High-speed propellers often create tiny bubbles in the water, and these cavitations have a distinct sound. The sonar hydrophones may be towed behind the ship or submarine in order to reduce the effect of noise generated by the watercraft itself. Towed units also combat the thermo cline, as the unit may be towed above or below the thermo cline. The display of most passive sonars used to be a two-dimensional waterfall display. The horizontal direction of the display is bearing. The vertical is frequency, or sometimes time. Another display technique is to color-code frequency-time information for bearing. More recent displays are generated by the computers, and mimic radar-type plan position indicator displays. Performance prediction Unlike active sonar, only one way propagation is involved. Because of the different signal processing used, the minimum detectable signal to noise ratio will be different. The equation for determining the performance of passive sonar is: SL à ¢Ã‹â€ Ã¢â‚¬â„¢ TL = NL à ¢Ã‹â€ Ã¢â‚¬â„¢ DI + DT where SL is the source level, TL is the transmission loss, NL is the noise level, DI is the directivity index of the array (an approximation to the array gain) and DT is the detection threshold. The figure of merit of passive sonar is: FOM = SL + DI à ¢Ã‹â€ Ã¢â‚¬â„¢ (NL + DT). Warfare Modern naval warfare makes extensive use of both passive and active sonar from water-borne vessels, aircraft and fixed installations. The relative usefulness of active versus passive sonar depends on the radiated noise characteristics of the target, generally a submarine. Although in WW II active sonar was used by surface craft-submarines avoided emitting pings which revealed their presence and position-with the advent of modern signal-processing passive sonar became preferred for initial detection. Submarines were then designed for quieter operation, and active sonar is now more used. In 1987 a division of Japanese company Toshiba reportedly sold machinery to the Soviet Union that allowed it to mill submarine propeller blades so that they became radically quieter, creating a huge security issue with their newer generation of submarines. Active sonar gives the exact bearing to a target, and sometimes the range. Active sonar works the same way as radar: a signal is emitted. The sound wave then travels in many directions from the emitting object. When it hits an object, the sound wave is then reflected in many other directions. Some of the energy will travel back to the emitting source. The echo will enable the sonar system or technician to calculate, with many factors such as the frequency, the energy of the received signal, the depth, the water temperature, the position of the reflecting object, etc. Active sonar is used when the platform commander determines that it is more important to determine the position of a possible threat submarine than it is to conceal his own position. With surface ships it might be assumed that the threat is already tracking the ship with satellite data. Any vessel around the emitting sonar will detect the emission. Having heard the signal, it is easy to identify the sonar equipment used and its position. Active sonar is similar to radar in that, while it allows detection of targets at a certain range, it also enables the emitter to be detected at a far greater range, which is undesirable. Since active sonar reveals the presence and position of the operator, and does not allow exact classification of targets, it is used by fast (planes, helicopters) and by noisy platforms but rarely by submarines. When active sonar is used by surface ships or submarines, it is typically activated very briefly at intermittent periods to minimize the risk of detection. Consequently active sonar is normally considered a backup to passive sonar. In aircraft, active sonar is used in the form of disposable son buoys that are dropped in the aircrafts patrol area or in the vicinity of possible enemy sonar contacts. Passive sonar has several advantages. Most importantly, it is silent. If the target radiated noise level is high enough, it can have a greater range than active sonar, and allows the target to be identified. Since any motorized object makes some noise, it may in principle be detected, depending on the level of noise emitted and the ambient noise level in the area, as well as the technology used. To simplify, passive sonar sees around the ship using it. On a submarine, nose-mounted passive sonar detects in directions of about 270 °, centered on the ships alignment, the hull-mounted array of about 160 ° on each side, and the towed array of a full 360 °. The invisible areas are due to the ships own interference. Once a signal is detected in a certain direction (which means that something makes sound in that direction, this is called broadband detection) it is possible to zoom in and analyze the signal received (narrowband analysis). This is generally done using a Fourier transform to show the different frequencies making up the sound. Since every engine makes a specific sound, it is straightforward to identify the object. Databases of unique engine sounds are part of what is known as acoustic intelligence or ACINT. Another use of passive sonar is to determine the targets trajectory. This process is called Target Motion Analysis (TMA), and the resultant solution is the targets range, course, and speed. TMA is done by marking from which direction the sound comes at different times, and comparing the motion with that of the operators own ship. Changes in relative motion are analyzed using standard geometrical techniques along with some assumptions about limiting cases. Passive sonar is stealthy and very useful. However, it requires high-tech electronic components and is costly. It is generally deployed on expensive ships in the form of arrays to enhance detection. Surface ships use it to good effect; it is even better used by submarines, and it is also used by airplanes and helicopters, mostly to a surprise effect, since submarines can hide under thermal layers. If a submarines commander believes he is alone, he may bring his boat closer to the surface and be easier to detect, or go deeper and faster, and thus make sounder. Examples of sonar applications in military use are given below. Many of the civil uses given in the following section may also be applicable to naval use. Anti-submarine warfare Variable Depth Sonar and its winch until recently, ship sonars were usually with hull mounted arrays, either amidships or at the bow. It was soon found after their initial use that a means of reducing flow noise was required. The first were made of canvas on a framework, and then steel ones were used. Now domes are usually made of reinforced plastic or pressurized rubber. Such sonars are primarily active in operation. An example of conventional hull mounted sonar is the SQS-56. Because of the problems of ship noise, towed sonars are also used. These also have the advantage of being able to be placed deeper in the water. However, there are limitations on their use in shallow water. These are called towed arrays (linear) or variable depth sonars (VDS) with 2/3D arrays. A problem is that the winches required to deploy/recover these are large and expensive. VDS sets are primarily active in operation while towed arrays are passive. An example of a modern active/passive ship towed sonar is Sonar 2087 made by Thales Underwater Systems. Torpedoes Modern torpedoes are generally fitted with active/passive sonar. This may be used to home directly on the target, but wake following torpedoes are also used. An early example of an acoustic homer was the Mark 37 torpedo. Torpedo countermeasures can be towed or free. An early example was the German Sieglinde device while the Pillenwerfer was a chemical device. A widely used US device was the towed Nixie while MOSS submarine simulator was a free device. A modern alternative to the Nixie system is the UK Royal Navy S2170 Surface Ship Torpedo Defense system. Mines Mines may be fitted with a sonar to detect, localize and recognize the required target. Further information is given in acoustic mine and an example is the CAPTOR mine. Mine countermeasures Mine Countermeasure (MCM) Sonar, sometimes called Mine and Obstacle Avoidance Sonar (MOAS), is a specialized type of sonar used for detecting small objects. Most MCM sonars are hull mounted but a few types are VDS design. An example of a hull mounted MCM sonar is the Type 2193 while the SQQ-32 Mine-hunting sonar and Type 2093 systems are VDS designs. See also Minesweeper (ship) Submarine navigation Submarines rely on sonar to a greater extent than surface ships as they cannot use radar at depth. The sonar arrays may be hull mounted or towed. Information fitted on typical fits is given in Yoshiro class submarine and Swift sure class submarine. Aircraft Helicopters can be used for antisubmarine warfare by deploying fields of active/passive son buoys or can operate dipping sonar, such as the AQS-13. Fixed wing aircraft can also deploy son buoys and have greater endurance and capacity to deploy them. Processing from the son buoys or dipping sonar can be on the aircraft or on ship. Helicopters have also been used for mine countermeasure missions using towed sonars such as the AQS-20A Ocean surveillance For many years, the United States operated a large set of passive sonar arrays at various points in the worlds oceans, collectively called Sound Surveillance System (SOSUS) and later Integrated Undersea Surveillance System (IUSS). A similar system is believed to have been operated by the Soviet Union. As permanently mounted arrays in the deep ocean were utilized, they were in very quiet conditions so long ranges could be achieved. Signal processing was carried out using powerful computers ashore. With the ending of the Cold War a SOSUS array has been turned over to scientific use. Underwater security Sonar can be used to detect frogmen and other scuba divers. This can be applicable around ships or at entrances to ports. Active sonar can also be used as a deterrent and/or disablement mechanism. One such device is the Cerberus system. Hand-held sonar Limpet Mine Imaging Sonar (LIMIS) is hand-held or ROV-mounted imaging sonar designed for patrol divers (combat frogmen or clearance divers) to look for limpet mines in low visibility water. The LUIS is imaging sonar for use by a diver. Integrated Navigation Sonar System (INSS) is small flashlight-shaped handheld sonar for divers that display range. Intercept sonar This is sonar designed to detect and locate the transmissions from hostile active sonars. An example of this is the Type 2082 fitted on the British Vanguard class submarines. Uses in daily life Fisheries Fishing is an important industry that is seeing growing demand, but world catch tonnage is falling as a result of serious resource problems. The industry faces a future of continuing worldwide consolidation until a point of sustainability can be reached. However, the consolidation of the fishing fleets are driving increased demands for sophisticated fish finding electronics such as sensors, sounders and sonars. Historically, fishermen have used many different techniques to find and harvest fish. However, acoustic technology has been one of the most important driving forces behind the development of the modern commercial fisheries. Sound waves travel differently through fish than through water because a fishs air-filled swim bladder has a different density than seawater. This density difference allows the detection of schools of fish by using reflected sound. Acoustic technology is especially well suited for underwater applications since sound travels farther and faster underwater than in air. Today, commercial fishing vessels rely almost completely on acoustic sonar and sounders to detect fish. Fishermen also use active sonar and echo sounder technology to determine water depth, bottom contour, and bottom composition. Cabin display of fish finder sonar Companies such as Ray marine UK makes a variety of sonar and acoustic instruments for the deep sea commercial fishing industry. For example, net sensors take various underwater measurements and transmit the information back to a receiver onboard a vessel. Each sensor is equipped with one or more acoustic transducers depending on its specific function. Data is transmitted from the sensors using wireless acoustic telemetry and is received by a hull mounted hydrophone. The analog signals are decoded and converted by a digital acoustic receiver into data which is transmitted to a bridge computer for graphical display on a high resolution monitor. Echo sounding An echo-sounder sends an acoustic pulse directly downwards to the seabed and records the returned echo. The sound pulse is generated by a transducer that emits an acoustic pulse and then listens for the return signal. The time for the signal to return is recorded and converted to a depth measurement by calculating the speed of sound in water. As the speed of sound in water is around 1,500 meters per second, the time interval, measured in milliseconds, between the pulse being transmitted and the echo being received, allows bottom depth and targets to be measured. The value of underwater acoustics to the fishing industry has led to the development of other acoustic instruments that operate in a similar fashion to echo-sounders but, because their function is slightly different from the initial model of the echo-sounder, have been given different terms. Net location The net sounder is an echo sounder with a transducer mounted on the headline of the net rather than on the bottom of the vessel. Nevertheless, to accommodate the distance from the transducer to the display unit, which is much greater than in a normal echo-sounder, several refinements have to be made. Two main types are available. The first is the cable type in which the signals are sent along a cable. In this case there has to be the provision of a cable drum on which to haul, shoot and stow the cable during the different phases of the operation. The second type is the cable less net-sounder such as Marports Trawl Explorer in which the signals are sent acoustically between the net and hull mounted receiver/hydrophone on the vessel. In this case no cable drum is required but sophisticated electronics are needed at the transducer and receiver. The display on a net sounder shows the distance of the net from the bottom (or the surface), rather than the depth of water as with the echo-sounders hull-mounted transducer. Fixed to the headline of the net, the footrope can usually be seen which gives an indication of the net performance. Any fish passing into the net can also be seen, allowing fine adjustments to be made to catch the most fish possible. In other fisheries, where the amount of fish in the net is important, catch sensor transducers are mounted at various positions on the cod-end of the net. As the cod-end fills up these catch sensor transducers are triggered one by one and this information is transmitted acoustically to display monitors on the bridge of the vessel. The skipper can then decide when to haul the net. Modern versions of the net sounder, using multiple element transducers, function more like sonar than an echo sounder and show slices of the area in front of the net and not merely the vertical view that the initial net sounders used. The sonar is an echo-sounder with a directional capability that can show fish or other objects around the vessel good Ship velocity measurement Sonars have been developed for measuring a ships velocity either relative to the water or to the bottom. Scientific applicationsà   Biomass estimation Detection of fish, and other marine and aquatic life, and estimation their individual sizes or total biomass using active sonar techniques. As the sound pulse travels through water it encounters objects that are of different density or acoustic characteristics than the surrounding medium, such as fish, that reflect sound back toward the sound source. These echoes provide information on fish size, location, abundance and behavior. Data is usually processed and analyzed using a variety of software such as Echo view. Wave measurement An upward looking echo sounder mounted on the bottom or on a platform may be used to make measurements of wave height and period. From this statistics of the surface conditions at a location can be derived. Water velocity measurem