Monday, October 28, 2019

Chinese government Essay Example for Free

Chinese government Essay Ai WeiWei blurred the lines between the aesthetic and the political. According to the internet, aesthetic is defined as concerned with beauty or the appreciation of beauty. Ai WeiWei used art to â€Å"protest† against the Chinese government. Ai Weiwei was a creative man who thought of ideas how to represent the names of all the children who were killed in a deadly earthquake. A commentator in the movie claimed that Ai WeiWei was doing a job that the government should be doing. A deadly earthquake collapsed many buildings including homes and schools. Thousands of children were killed and were left unrecognized. Ai WeiWei wasn’t going to let this go. He assembled a project, full of volunteers to help him search for the names of the children who were killed in the disaster. He placed every individual name on his wall. The project inspired him to create more pieces of art work to revolt against the Chinese government. Ai WeiWei was a fearless man. Ai WeiWei was very involved with social media. He used twitter to share to the world how corrupt China’s government was. He left China when he said â€Å"Fuck You Mother Land. † Cameras are sometimes forbidden in China. Ai WeiWei was assaulted by a police officer, but that did not stop him from taking pictures in front court houses or of an officer who was at the scene when he was attacked. Ai WeiWei created a wall full of back packs to make other individuals aware of the children that died in the earthquake. During the 2nd anniversary, Ai WeiWei asked his followers to pick a name and record it on tape and share it to the world. Ai WeiWei was sharing his experience in China of the corrupt government with thousands of people around the world. Ai WeiWei made people aware of what was going on in China. Ai WeiWei became well-known through his work of art. He expressed his ideas through his work. Not only did his art make him well-known, Ai WeiWei captured many supporters to revolt against the corrupt system. Ai WeiWei was a man with no selfishness. He looked out for others and he was always looking and searching for ideas that would help him and his followers. Ai WeiWei was not afraid of the consequences, as long as he knew it was for the good.

Saturday, October 26, 2019

How much more is Jane Eyre than just a piece of romantic fiction? :: Free Essay Writer

How much more is Jane Eyre than just a piece of romantic fiction? All the qualities of a typical romantic fiction are certainly found in ‘Jane Eyre’. The usual qualities found in romances are a Hero and Heroine. They can have some tension between them before finally falling in love but something gets in their way, eventually they over come all odds and get to be together in the end. Obviously Jane is the Heroine and Mr. Rochester is the Hero, and as in most romances, the story is told through the eyes of the Heroine. ‘Jane Eyre’ starts off with Jane’s childhood to allow the reader to get to know Jane and sympathize with all her views and feelings. When Jane first moves to Thornfield Hall the romance starts. To build up the tension for the reader Jane is at first denying her feeling. â€Å"it was rather a trial to appear thus formally summoned in Mr. Rochester’s presence† It is obvious to the reader what is going to happen and frustrating that Jane will not admit that she likes him this is very typical of a romance. It follows on conforming to the romance stereotype when Jane admits her feelings but something gets in the way. At first this is Blanche Ingram, Jane is convinced by things people have said that she is going to Marry Mr. Rochester. â€Å"And did I now think Miss Ingram such a choice as Mr. Rochester would be likely to make?† This is providing a barrier against them getting together in the straight forward way of just Blanche Ingram but she also stands to represent looks and class. She is a lot prettier than Jane and this tests Mr. Rochester to see if he is the deep thinking man Jane thinks he is. Also Jane is of a lot lower class than Blanche Ingram and it would have seemed strange at the time ‘Jane Eyre’ was written for Mr. Rochester to chose Jane. This is pushed aside and it seems like everything has started to go right for Jane. Then follows the clichà ©d romantic twist. Jane discovers Mr. Rochester’s wife. â€Å"this gentleman’s wife is still living† Everything falls apart for Jane. She runs away and begins to start a new life till the end of the novel when Jane finds out Mr. Rochester’s wife has died and they get married. â€Å"My Edward and I then are happy† As in all romances it comes to the happy ending to make the reader feel happy and satisfied. These were the ways in which ‘Jane Eyre’ followed the typical romance patterns for general romances. But there is much more to this novel.

Thursday, October 24, 2019

MRSA infection in neonatal intensive care units

Methicillin-resistant S. aureus strains increased in the U.S. from 2.4% in 1975 to 29% in 1991. Once established, MRSA is very difficult to eradicate. One of the biggest challenges is preventing cross-transmission of these organisms. Certain patients are more prone to infection and colonization by MRSA, and neonates in NICUs are a high-risk group (Finkelstein, 1999, 24). Risk factors for acquiring MRSA include prolonged hospitalization; a stay in an ICU or burn unit; previous antimicrobial therapy; surgical site infections; and exposure to colonized or infected patients. The majority of MRSA infections in neonates are primary bacteremias and pneumonias. MRSA infections have also been associated with increased morbidity and mortality, and greater hospital costs than those due to methicillin-sensitive Staphylococcus aureus (MSSA). Why are neonates more prone to MRSA infection? With regards to skin infection it has been shown that an infant's gestational age has a great impact on epidermal barrier function as measured by transepidermal water loss. Preterm infants younger than 28 weeks show decreased functioning of the epidermal barrier, placing them at risk for cutaneous bacterial infection (Kalia, 1998, 323). The skin barrier attains full function, similar to adult skin, by 2 to 4 weeks of age but can take as long as 8 weeks in extremely premature infants. Mandel et al. (2004, 161) conducted a retrospective analysis of the role of cutaneous abscess in sepsis. They found that in 22% of the newborn infants with nosocomial sepsis, cutaneous abscess was the underlying cause. Additionally, their immune systems are underdeveloped, with white blood cells-neutrophils in particular-moving more slowly than adults'. It's suspected that neonates become colonized with S. aureus soon after being placed in a nursery, with the umbilical stump as the site of initial colonization. Factors identified with MRSA outbreaks in NICUs include high infant-to-staff ratios and infection transmission through hand carriage by health care workers (AAP, 1997) Spread of MRSA Infection and prevention MRSA is found on the anterior nares, groin, and perineum, S. aureus is a normal part of the body flora. It's also a common pathogen, causing major infections in both compromised and uncompromised patients. The normal immune response of the body can overcome any MRSA attempt to infection, but in the intensive care due to reduced immune response, and bacterial resistance, these organisms van create havoc. In a report from Australia quoted by Park (2007, 26-27), it was shown that from 1992 to 1994, methicillin-resistant S. aureus (MRSA) infections caused only 8% of staphylococcal infections but from 1995 to 1998, there was an outbreak of MRSA infection in two Melbourne hospitals. Methods to halt the spread of MRSA outbreaks include reducing overcrowding and improving staffing patterns, treating umbilical cords with triple-dye, and bathing full-term infants with hexachlorophene. But unless strict adherence to infection control is maintained, it is not possible to control this infection. Handwashing is most important. The American Academy of Pediatrics recommends that neonatal nursery staff perform a three-minute handwash at the start of each shift, cleansing up to the elbows with an antiseptic soap and sponge brush (AAP, 1997). Infected neonates should be placed on contact precautions. Here the infant must be handled with gloves, and if possible, depending on the spacing available and the acute status of the infant, they should be assigned to isolated chambers (Larson, 1995, 259, 262). Hitomi etal (2000, 127), advocate the use of mupirocin as a nasal spray to control nasal carriage of MRSA in the hospital staff, which act as the greatest source of spread of this infection. Effects of Nosocomial MRSA infection According to the NNIS (2002), In 2000, 55.3% of S. aureus isolates causing nosocomial infections among patients hospitalized in intensive care units in hospitals reporting to the National Nosocomial Infection Surveillance System were resistant to methicillin. Nambiar etal(2003, 224) give an interesting account of the complications MRSA can cause in an intensive care setting. They describe an outbreak of MRSA, in which neonates had meningitis, blood stream infection (with its complications – soft tissue abscess, shock and a right atrial thrombus, suppurative thrombophlebitis, osteoarthritis of the distal femur and knee joint). Masanga (1999, 169) reported colonic stenosis after MRSA enterocolitis. The predisposing factors for neonatal MSSA enterocolitis include breast feeding from a mother with staphylococcal mastitis,an indwelling feeding catheter   and malnutrition. The clinical picture of MSSA enterocolitis in the neonate is characterized by acute onset of diarrhea and ileus. Necrotizing enterocolitis. intensive care including mechanical ventilation, indwelling feeding catheter, the use of antibiotics, the delay of feeding causing the lower acidity of gastric contents, hypoactive peristalsis and the change of bowel flora, conditions similar to those seen in postoperative patients most likely predisposed to abnormal MRSA growth and resultant enterocolitis. toxic shock syndrome (combination of erythema and thrombocytopenia, low-positive C-reactive protein (CRP) value, or fever), (Richtmann etal, 2000, 88-89, Takahashi, 2003, 234-35). Effect on parents The illness in the neonate is a great source of stress to the parents. Not only is the child separated from the mother, which leads to anxiety for the mother, and nursing problems. There occur problems of lactation, with breast engorgement and galactorrhoea. In addition, the mother is at a greater risk of catching infection from a septicemic child with pneumonia and exanthemas. Skin infection can spread via contact. Thus parents are at an increased risk from a child affected with MRSA infection. Treatment Prevention is the best treatment. This infection can be rapidly fatal in the neonates, particularly the preterm infants. Prompt recognition of the symptoms and active measures to prevent spread can reduce the morbidity and mortality. Cultures should be obtained for susceptibility determination in any child with a presumed S. aureus infection that is moderate to severe. The choice of empiric therapy, before susceptibility testing, and the choice of definitive therapy will depend on the local antibiotic resistance patterns, the tissue site and severity of infection, and the toxicity profile of the antibiotic. Vancomycin has been the traditional antibiotic employed for the treatment of MRSA pneumonia. It has been found, however, that problems with lung tissue penetration may limit the effectiveness of vancomycin   Similarly, daptomycin has been shown to have limited activity for pneumonia due to limited lung penetration and inhibition by surfactant. Linezolid has also recently been evaluated as a specific treatment for MRSA pneumonia, and found to have good lung tissue penetration capability (Bradley, 200575-77) Conclusions MRSA infection in the neonatal intensive care setting is associated with exceptional morbidity and mortality. Preventive measures are the key to victory against MRSA. Each unit has to chart out effective protocols of infection control and adhere to it with a strong will. References 1 Finkelstein LE etal(1999MRSA in NeonatesAm J Nurs, Volume 99(1).January.24 2   Kalia YN, Nonato LB, Lund CH, et al(1998) Development of skin barrier function in premature infants. J Invest Dermatol; 111:320-326 3 Mandel D, Littner Y, Mimouni FB, et al.( 2004) Nosocomial cutaneous abscesses in septic infants. Arch Dis Child Fetal Neonatal Ed; 89:F161-F162 4 American Academy of Pedaitrics and American College of Obstetricians and Gynecologists (1997)Guidelines for Perinatal care, 4th ed. Elk Grove Village, IL, The Academy, 5 PARK CH etal(2007). Changing trend of neonatal infection: Experience at a newly established regional medical center in KoreaPediatr Int, Volume 49(1).24–30 6 Larson, E. L(1995). APIC guideline for handwashing and hand antisepsis in health care settings. Am.J. Infect.Control 23:251-269. 7   Hitomi S, Kubota M, Mori N, et al(2005): Control of methicillin resistant Staphylococcus aureus outbreak in a neonatal intensive care unit by unselective use of nasal mupirocin ointment. J Hosp Infect; 46: 123–129 8 National Nosocomial Infections Surveillance (NNIS) System Report. Data Summary from January 1992 to June 2001. Issued August 2001. Available at: http://www.cdc.gov/ncidod/hip/NNIS/members/members.htm #nnisreports. Accessed Mar 5 2007 9   Nambiar S, Herwaldt LA, Singh N (2003). Outbreak of invasive disease caused by methicillin-resistant Staphylococcus aureus in neonates and prevalence in the neonatal intensive care unit. Pediatr Crit Care Med, Volume 4(2).220-226 10 Masanga K etal (1999). Colonic Stenosis After Severe Methicillin-Resistant Staphylococcus Aureus Enterocolitis In A Newborn. Pediatr Infect Dis J, Volume 18(2).169-171 11 Richtmann R etal.(2000) Outbreak Of Methicillin-Resistent Staphylococcus Aureus (Mrsa) Infection On A Neonate Intensive Care Unit (Nicu): The Key Role Of Infection Control Measures. Am J Infect Control, Volume 28(1).February 88-89. 12 Takahashi N (2003). Neonatal toxic shock syndrome-like exanthematous disease (NTED). Pediatr Int, Volume 45(2).233–237 13 Bradley JS (2005). Newer antistaphylococcal agents Curr Opin Pediatr, Volume 17(1).71-77                           

Wednesday, October 23, 2019

Mercedes Benz’s E-Biz Solution Essay

The fact that we would be one of the first car manufacturers in the United States to have a factory delivery program would be seen as a very positive thing in this regard. † – William Engelke, Assistant Manager, IT Systems, Mercedes Benz US International, commenting on the FDRS. Linking Customers By 2000, Mercedes Benz United States International (MBUSI), builder of the high-quality MClass sports utility vehicle (SUV), established itself as a company that also delivered superior customer services. One such service was the delivery option where by the customer could take delivery of the vehicle at the factory in Alabama, US. The program called the Factory Delivery Reservation System (FDRS), enabled MBUSI to create and validate 1800 orders per hour. FDRS also automatically generated material requirements and Bills of Material1 for 35,000 vehicles per hour. The Customer Relationship Management (CRM) solution that made FDRS possible was based on Lotus Domino2 and IBM Netfinity3 server4. Analysts felt that with its innovative use of the new program, MBUSI not only managed to improve its customer relations by providing the best service, but also demonstrated its commitment to customers by making them an integral part of the process. Customers were, in a way linked directly to the factory floor – which was a powerful sales tool. Background: Mbusi and its Business Challenges MBUSI was a wholly-owned subsidiary of DaimlerChrylser AG. 5 In 1993, Daimler Benz realized that the ‘Benz’ brand could be extended to wider market segments. Traditionally, Mercedes Benz6 appealed to older and sophisticated customers only. Daimler Benz wanted to attract customers below 40 years of age, who wanted a rugged vehicle with all the safety and luxury features of a Mercedes. Daimler Benz decided to develop a SUV known as the M-Class. It expected strong demand for the new vehicle and therefore planned to build its first car-manufacturing facility – MBUSI – in the (Tuscaloosa, Alabama) US. The MBUSI facility had many advantages. First, labor costs in the US were almost half that of in Germany. Second, the US was the leading geographic market for SUVs. Third, as the vehicles were assembled in the US, they could be distributed to Canada and Mexico more efficiently. In January 1997, the factory started production at partial capacity and by the end of the year, it was producing at full capacity. By 2000, the factory was rolling out around 380 vehicles per day. The new M-Class „allactivity’vehicle represented a new concept for the company. Also, mass customization required that each vehicle be treated as a separate project, with its own Bill of Material. To deal with these challenges, Daimler Benz decided to implement an enterprise wide Information Technology (IT) system, with the help of IBM Global Services7. To further strengthen the image of Mercedes Benz in the US, MBUSI planned to deliver vehicles at the factory, becoming the first international automobile manufacturer in the US to do so. MBUSI also wanted to enrich the customers’experience. Commented William Engelke, â€Å"The factory delivery option gives Mercedes-Benz customers something that they do not get from other automobile manufacturers which is why we think the program will resonate with our customers. We think that having the factory delivery program available to Mercedes customers adds to the overall experience of the customer. † The Design of FDRS The FDRS program was proposed in the first quarter of 1998. In the third quarter of 1998, MBUSI entered into a contract with IBM. A development team was constituted with IBM Global Solutions specialists and IBM e-commerce developers, who worked closely with MBUSI. The program became operational by the first quarter of 1999. The IT team at MBUSI had a clear set of functional specifications for FDRS. However, they relied on IBM to transform the concept into an e-business solution. The FDRS was designed in such a way that customers buying the M-Class SUV could specify that will take delivery of their new vehicle at the factory. They could place the order at any of the 355 Mercedes Benz dealers in the US. An authorized employee at the dealership entered the factory delivery order the web interface. Timing was the most important aspect of the FDRS’functionality, as it was closely linked with MBUSI’s vehicle production schedule. Mercedes Benz United States of America (MBUSA)8, based in Montvale, NJ, was the first link in the FDRS program. It was the point where the dealer actually placed the order. MBUSA’s role was to coordinate the distribution of vehicles to dealers across the country. Later, it had to add the order to the company’s Baan Enterprise Resource Planning (ERP)9system, which scheduled the order for production. About three months before the production date, the dealer could schedule in a window, the date and time of arrival of the customer at the factory for delivery. The window was then automatically computed by the FDRS to give the dealer, the possible delivery dates. Apart from the delivery date, the customer could also specify the accessories for the car and also request a factory tour. FDRS was based on Lotus Domino (Refer Exhibit I), Lotus Enterprise Integrator10 and IBM Netfinity servers. It also interfaced with IBM S/390 Parallel Enterprise Server, Model 9672-R45 located in Montvale, NJ (Refer Figure I). There were two Domino servers – an IBM Netfinity 5500 and an IBM Netfinity 3000. FIGURE I SYSTEM ARCHITECTURE OF FDRS Source: MBUSI The former that acted as the „internal Domino server’was placed behind a firewall 11. It replicated databases through the firewall to the external server. The replication, which was encrypted, represented the primary means by which the FDRS system achieved security. Netfinity 3000 acted as an „external Domino server. ‘It had public information and was also the primary communication linkage for dealers. The ack-end of the FDRS was equipped with an Oracle database that updated the internal Domino server database with order information. The updation was done using Lotus Enterprise Integrator. The data which was replicated to the internal Domino server included lists of valid dealers and lists of order numbers. When an order was placed by the dealer on the FDRS system, the data was first stored on the external Domino server, a fter which it was replicated to the internal Domino server. Then it was replicated to the back-end database via the Lotus Enterprise Integrator. Data replication between the Lotus Notes servers happened every 15 minutes and data exchange with the back-end database three times per day. There was also a link between the back end database and an IBM S/39012 mainframe based system located at MBUSA via a T113 line. MBUSA managed the flow of vehicles to Mercedes dealers across the United States. This mainframe based system, received new vehicle orders (as opposed to factory delivery reservation requests) from individual dealers. The orders were then sent to MBUSI’s Baan system and also to the back-end database. The vehicle ordering and factory reservation data were coordinated with each other when the back-end database uploaded the data to the internal Domino server. This coordinated the production and delivery information. FDRS Implementation One of the most challenging aspects of the implementation seemed to be the complexity of the Lotus and Domino scripts. The development team had to group all the information from diverse systems. Commented William Engelke, â€Å"There was a substantial amount of very complex coding involved in the FDRS solution. This application involves a lot more than having our dealers fill out a form and submitting it. There are many things the servers have to do for the system to function properly, such as looking at calendars and production schedules. We built a solution with some very advanced communication linkages. † IBM faced many technical challenges during the implementation of the program. One of them was the different timing schemes of the Lotus Notes databases and backend databases (ERP). This led to discrepancies in the data. Domino server was a Near Real Time (NRT) Server14, and MBUSI’s backend activities were both real time15and batch processing16. Also, to get the best results, the Domino server was an optimised subset of the ERP table set17. However, the development team achieved a balance between the two „sides’of the solution by focusing on issues of timing, error detection schemes, and alerts. Customer Satisfaction: FDRS Primary Benefit MBUSI seemed to measure FDRS’success in terms of increased satisfaction of its customers. The company also believed that the marketing and customer satisfaction aspects outweighed the significance of more traditional cost-based benefits. Apart from the factory delivery experience, the program also offered the customer a factory tour and ride on the off-road course at a low cost. The company also seemed to gain strategic marketing benefits from the FDRS program, as it was able to establish Mercedes-Benz as a premium brand. (Refer Table I for advantages of FDRS in different areas). Customers could also visit the various tourist spots in Alabama after picking up their M-class vehicles. TABLE I ADVANTAGES OF THE FDRS PROGRAM AREA Strategic Marketing Benefits Cost Savings ADVANTAGES FDRS was expected to improve customer satisfaction and brand loyalty, as it enriched Mercedes’ customer’s experience. The program also strengthened the brand image of Mercedes in the US. Development of a web-based solution enabled MBUSI to offer the factory delivery program at substantially lower costs, due to less reliance on administrative personnel. â€Å"Package Marketing† the FDRS program with a ride to tourist sites, enhanced the image of Alabama as a tourist destination. The creation of a similar – albeit smaller – factory delivery system to the European Customer Delivery Center in Sindelfingen, Germany, reflected favorably on the MBUSI business unit. Source: MBUSI Regional Economic Development DaimlerChrysler AG Future of FDRS In 2000, MBUSI planned to leverage FDRS’platform by adding a range of other services. MBUSI built an advanced platform to create communication links to its suppliers. Through the link, MBUSI provided them feedback on the quality of supplies it received. The dealers and suppliers had a user-ID and password, which the system recognized. It then routed them into the appropriate stage of the FDRS. The company also planned to extend the innovative system to include transactional applications such as ordering materials and checking order status on the Web. The company expected that the new system based on FDRS, would be more cost-effective than the Electronic Data Interchange (EDI)18 system. ] Bill of Material keeps track of all raw materials, parts, and subassemblies used to create a finished product. 2] A product of IBM Corp. , Lotus Notes and Domino R5 are the industry’s leading client/server combination for collaborative messaging and e-business solutions. 3] The IBM Netfinity server offers solutions for file-and-print and application computing needs. 4] A comput er or device on a network that manages network resources. For example, a file server is a computer and storage device dedicated to storing files. Any user on the network can store files on the server. A print server is a computer that manages one or more printers, and a network server is a computer that manages network traffic. A database server is a computer system that processes database queries. 5] DaimlerChrysler AG was the result of a merger between two leading car manufacturers – Daimler Benz of Germany and Chrysler Corp. of the US in 1998. 6] A luxury brand of passenger cars, Sports Utility Vehicles from DaimlerChrysler. 7] IBM Global Services is the services and consultancy division of IBM Corp. that offers extensive ebusiness solutions. 8] MBUSA is the wholly owned US subsidiary of DaimlerChrylser. ] ERP attempts to integrate all departments and functions across a company onto a single computer system that can serve all those different departments’ particular needs. 10] A server-based data distribution product that enables data exchange between Lotus Domino and a number of host and relational applications. 11] A system designed to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software. Firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranets. All messages entering or leaving the intranet pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria. 12] The IBM S/390 servers offer direct high speed access to the e-business application and are used for Enterprise Computing. 13] A dedicated phone connection supporting data rates of 1. 544 Mbits per second. A T1 Line actually consists of 24 individual channels, each of which supports 64 Kbits per second. Each 64 Kbit per second channel can be configured to voice or data traffic. 14] The NRT Server System supports real time distribution of near-real time data. 5] Real time refers to events simulated by a computer at the same speed that they would occur in real life. 16] Executing a series of noninteractive jobs all at one time. The term dates back to the days when users entered programs on punch cards. They gave a batch of these programmed cards to the system operator, who fed them into the computer. Usually, batch jo bs are stored up during working hours and then executed whenever the computer is idle. Batch processing is particularly useful for operations that require the computer or a peripheral device for an extended period of time. Once a batch job begins, it continues until it is done or until an error occurs. Note that batch processing implies that there is no interaction with the user while the program is being executed. 17] The ERP tables are the database tables, (thousands of them), on which the package is built. The programmers and end users must set these tables to match their business processes. Each table has a decision „switch’that leads the software down one decision path or another. 18] EDI connects all the suppliers in and out of the US. www. icmrindia. org/free resources/casestudies/Mercedes Benz-IT&Systems-Case Studies. htm

Tuesday, October 22, 2019

Principal Structural Units of the Airplane Essays

Principal Structural Units of the Airplane Essays Principal Structural Units of the Airplane Essay Principal Structural Units of the Airplane Essay Dialogue T. Well consider the principal structural units of the airplane. Look at the picture (Fig. 1. 1). This is an airplane. [pic] Figure 1. 1 T. Do you know the meaning of the word airplane ? S. Yes, I do. It is Ð »Ã'â€"Ã'‚Ð °Ã º. T. You are right. There are some words in the English language which have the same meaning. They are aircraft, airliner and aeroplane, plane, for short. S. What does the airplane consist of? T. The airplane consists of five principal structural units: the fuselage, the wing, the tail unit, the landing gear and the power plant. The wing means kphjio. It is the main plane of the aircraft. The word plane has two meanings Ð »Ã'â€"Ã'‚Ð °Ã º Ã'‚a Ð ¿Ã »Ã ¾Ã'‰Ð ¸Ã ½Ã °. S. What is the function of the wing? T. The function of the wing is to support an airplane in the air and to create lift. S. What is the function of the fuselage? T. The function of the fuselage is to carry passengers, crew, cargo, equipment and to support the wing, tail unit and engines in some designs. It also carries the landing gear. S. What is the meaning of the word crew. T. It is Ð µÃ ºÃ'â€"Ð ¿Ã °Ã ¶. Cargo means Ð ²Ã °Ã ½Ã'‚Ð °Ã ¶. The Ukrainian for tail unit is Ã'…Ð ²Ã ¾Ã' Ã'‚Ð ¾Ã ²Ã ° Ã'‡Ð °Ã' Ã'‚Ð ¸Ã ½Ã °. There are some synonyms to it. They are: the tail assembly, tail, empennage, fin assembly. The word engine means Ð ´Ã ²Ã ¸Ã ³Ã'Æ'Ð ½. The landing gear is Ã'ˆÐ °Ã' Ã'â€". S. What is the function of the tail unit? T. The function of the tail unit is to provide directional stability and control of the airplane in flight. S. What is the function of the power plant? T. The power plant is a source of power. S. What is the function of the landing gear? T. The landing gear supports the airplane on the ground and its function is also to absorb shocks of landing. I am sure you know the meaning of the word land and landing means Ð ¿Ã ¾Ã' Ã °Ã ´Ã ºÃ °. Exercise 1. Read and translate text 1. Text 1. Principal Structural Units of the Airplane The airplane consists of five principal structural units: the fuselage, the wing, the tail unit, the landing gear and the power plant. The fuselage extends from the nose to the tail of the airplane. It houses passengers, crew, cargo and equipment. It supports the wing, tail unit and sometimes engines. The fuselage also carries the landing gear. The wings are lifting and supporting surfaces of the airplane in flight. The function of the wing is to support the airplane in the air and to create lift. The function of the tail unit is to provide directional stability and control of the airplane in flight. The tail unit consists of two surfaces, vertical and horizontal. The function of the power plant is to provide power for flight and to propel the airplane. The landing gear supports the airplane on the ground and its function is to taxi the aircraft on the ground and to absorb the energy of landing. Exercise 2. Translate word combinations with the term aircraft: civil aircraft, cargo aircraft, military aircraft, passenger aircraft, ambulance aircraft, commercial aircraft, sea aircraft, cargo-passenger aircraft, long-range aircraft, forest patrol aircraft, mail-carrying aircraft, search and rescue aircraft. Exercise 3. Translate noun + noun word-combinations: aircraft engine, air flow, design principles, fuel tank, shock absorber, control unit, air pressure, fuselage skin, oil system, rocket engine, helicopter rotor, airplane speed, engine operation, flight condition. Exercise 4 Match the synonyms, aircraftspeed wingsource of power tail unitundercarriage landing gearmain plane power plantempennage fuselageairplane velocitycentral body Exercise 5. Translate verb-combinations. to consist of structural units, to extend from the nose to the tail, to support the wing, to carry cargo, to create lift, to provide directional stability, to control the airplane in flight, to propel the aircraft, to absorb the energy of landing, to taxi on the ground. Exercise 6. Make the following sentences interrogative and negative. 1. The fuselage is the central body of the airplane. 2. We divide the aeroplane into five principal structural units. 3. The power plant provides power for flight. 4. The tail unit consists of two surfaces, vertical and horizontal. 5. The wing extends equally on each side of the fuselage. Exercise 7. Say if the following statements are true or false. If they are wrong, correct them. 1. The airplane consists of two principal structural units. 2. The tail unit supports the wing. 3. The function of the power plant is to create lift. 4. The wings are not lifting and supporting surfaces of the airplane in flight. 5. The fuselage controls the airplane in flight. Exercise 8. Answer the questions. 1. What units does the airplane consist of? 2. What does the fuselage carry? 3. What supports the tail unit? 4. What provides directional stability of the airplane in flight? 5. What propels the airplane? Exercise 9. Read and translate text 2. Text 2. Airplane Structure The airplane, engine-driven vehicle can fly through the air-supported by the action of the air against its wings. Airplanes are heavier than air. Airplanes generally share the same basic configuration each usually has a fuselage, wing, tail, power plant, landing gear, and a set of specialized control surfaces mounted on the wing and tail. The fuselage is the main cabin, or body of the airplane. Generally the fuselage has a cockpit section at the front end, where the pilot controls the airplane, and a cabin section. The cabin section may be designed to carry passengers, cargo, or both. In a military fighter plane, the fuselage may house the engines, fuel, electronics, and some weapons. All airplanes, by definition, have wings. Some are nearly all wings with a very small cockpit. Others have minimal wings or wings that seem to be merely extensions of a blended, aerodynamic fuselage such as the space shuttle. Most airplanes, except for flying wings, have a tail assembly attached to the rear of the fuselage, consisting of vertical and horizontal stabilizers, which look like small wings; a rudder, and elevators. The components of the tail assembly are referred to as the empennage. All airplanes must have some type of landing gear. Modern aircraft employ brakes, wheels, and tires designed specifically for the demands of flight. Exercise 10. Give definition to the following terms. aircraft, fuselage, wing, empennage, landing gear, power plant. Exercise 11. Speak on: 1. Aircraft structure. 2. Functions of aircraft structural units. Exercise 12. Translate text 3 in writing. Text 3. Aircraft Performance The aircraft performance includes dimensional data and the main flying characteristics. Dimensional data are length, wing span, height and width. The main flying characteristics are maximum take-off weight, maximum landing and payload weight, passenger capacity or number of seats, number of crew, cargo capacity, cruising speed, flight range, flight altitude, non-stop flying time, practical ceiling or service ceiling, engine type and thrust of each engine, number of engines, take-off and landing ground run, maximum fuel capacity, etc. The aircraft usually takes the name of the designer or manufacturer. Here are some of the aircraft designers: Antonov, Ilushin, Tupolev, Yakovlev. Manufacturers names are represented by: Boeing, Bristol, Canadair, Convair, Douglas, Lockheed, Vickers and others. Following the name of the designer or manufacturer comes a type code, known in some airlines as a class. For example: Antonov-70 (designers name and type code), Douglas DC-6B (manufacturers name and type code),etc. The aircraft can be supplied in some versions: Economy-Class Business-Class and First-Class. Exercise 13. Copy out aviation terms from text 3. Exercise 14. Answer the questions. 1. What dimensional data does the aircraft performance include? 2. What are the main flying characteristics? 3 The aircraft usually takes the name of the designer, doesnt it? 4. What is the type code? 5. What versions can an aircraft be supplied in? Exercise 15. Speak on Aircraft performance. Exercise 16. Remember aircraft performance data. 777-200 First flight: June 12,1994 Model number: 777-200 Classification: Commercial transport Span: 199 feet 11 inches Length: 209 feet 1 inch Gross weight: 506,000 pounds Cruising speed: 615 mph Range: 4,210 to 8, 270 miles Ceiling: 37, 900 feet Power: Two 74, 500-/77,200-pound-thrust PW 4074/4077 engines, two 74,500-/76,400-pound-thrust GE 90-75B/76B engines, or two 74,600-/76,900-pound-thrust RR Trent 875/877 engines Accommodation: 305 to 440 passengers AN-124IL- 86 Cargo cabin dimensions:Length: 59,5 m Length: 36mWing span: 48 m No. of engines: 4 Cruising speed: 850-900 km/hr Altitude: 10-11 km Range: 3,000 5,000 km No. f seats: 350 Width: 6. 4 m Height: 4. 4 m Maximum take-off weight: 405,000kg Maximum cargo capacity: 150,000kg Engine type and power: D-l 8T 4230 /423,400kg Cruising speed: 800-850 km/hr Flight altitude: 10,000 12,000 m Flight range with maximum cargo: 4,500 km Maximum flight range: 16,500 km DarkStar UAV First flight. March 29, 1996 Classification: Experimental unmanned aerial vehicle Span: 69 feet Length: 15 feet Range: 500 nautical miles Ceiling: Grea ter than 45,000 feet Power: Single turbofan engine Accommodation: Unmanned

Monday, October 21, 2019

Free Essays on Revelation by Flannery OConnor

When I finished reading â€Å"Revelation† by Flannery O’Connor I began to realize the importance of the title. The definition of a revelation is to uncover, unveil, or to discover and that is exactly what took place in this specific short story. A revelation is not merely a word a character continuously says but a life lesson that is taught to a character. It was the main character, Mrs. Turpin, who was taught in such a bizarre way what a cruel person she is that it initially shocked me. However, as a reader I found the literary element of foreshadowing used when Mrs. Turpin replies, â€Å"I thank the Lord he has blessed me with a good one(disposition). The day has never dawned that I couldn’t find something to laugh at.†(O’Connor Page 315) When Mrs. Turpin and her husband, Claud, had to remain in the waiting room the very first thing that Mrs. Turpin did was question the doctor for charging five dollars a patient and not having a â€Å"decent size waiting room.† The next thing she did was harshly judge the other patients including an older lady, a â€Å"white-trash woman† and a cruel depiction of an eighteen year old girl, Mary Grace. The narrator says, â€Å"The poor girl’s face was blue with acne and Mrs. Turpin thought how pitiful it was to have a face like that at that age.† Mrs. Turpin does rude things such as occupy herself at night by naming the classes of people and question who she would be if she couldn’t be herself, having to choose from a poor white citizen or an African American. Mrs. Turpin doesn’t understand that she isn’t the only person who can judge until she notices Mary Grace trying to single her out by starring at her and rolling her eyes. Mrs. Turpin is astonished and says, â€Å"It was the ugliest face she had ever seen anyone make and for a moment she was certain that the girl had made it at her.† Shortly after Mary Grace threw the text book she was reading about Human Develop... Free Essays on Revelation by Flannery O'Connor Free Essays on Revelation by Flannery O'Connor When I finished reading â€Å"Revelation† by Flannery O’Connor I began to realize the importance of the title. The definition of a revelation is to uncover, unveil, or to discover and that is exactly what took place in this specific short story. A revelation is not merely a word a character continuously says but a life lesson that is taught to a character. It was the main character, Mrs. Turpin, who was taught in such a bizarre way what a cruel person she is that it initially shocked me. However, as a reader I found the literary element of foreshadowing used when Mrs. Turpin replies, â€Å"I thank the Lord he has blessed me with a good one(disposition). The day has never dawned that I couldn’t find something to laugh at.†(O’Connor Page 315) When Mrs. Turpin and her husband, Claud, had to remain in the waiting room the very first thing that Mrs. Turpin did was question the doctor for charging five dollars a patient and not having a â€Å"decent size waiting room.† The next thing she did was harshly judge the other patients including an older lady, a â€Å"white-trash woman† and a cruel depiction of an eighteen year old girl, Mary Grace. The narrator says, â€Å"The poor girl’s face was blue with acne and Mrs. Turpin thought how pitiful it was to have a face like that at that age.† Mrs. Turpin does rude things such as occupy herself at night by naming the classes of people and question who she would be if she couldn’t be herself, having to choose from a poor white citizen or an African American. Mrs. Turpin doesn’t understand that she isn’t the only person who can judge until she notices Mary Grace trying to single her out by starring at her and rolling her eyes. Mrs. Turpin is astonished and says, â€Å"It was the ugliest face she had ever seen anyone make and for a moment she was certain that the girl had made it at her.† Shortly after Mary Grace threw the text book she was reading about Human Develop...

Sunday, October 20, 2019

Centromere Location and Chromosome Separation

Centromere Location and Chromosome Separation A centromere is a region on a chromosome that joins sister chromatids. Sister chromatids are double-stranded, replicated chromosomes that form during cell division. The primary function of the centromere is to serve as a place of attachment for spindle fibers  during cell division. The spindle apparatus elongates cells and separates chromosomes  to ensure that each new daughter cell has the correct number of chromosomes at the completion of mitosis and meiosis. The DNA in the centromere region of a chromosome is composed of tightly packed chromatin known as heterochromatin. Heterochromatin is very condensed and is therefore not transcribed. Due to its heterochromatin composition, the centromere region stains more darkly with dyes than the other regions of a chromosome. Key Takeaways Centromeres are regions on a chromosome that join sister chromatids whose primary function is for the attachment of spindle fibers in cell division.While centromeres are typically located in the central area of a chromosome, they can also be located near the mid-region or at a number of different positions on the chromosome.Specialized zones on centromeres called kinetochores attach the chromosomes to spindle fibers in prophase in mitosis.Kinetochores have protein complexes that generate kinetochore fibers. These fibers help to orient and separate chromosomes during cell division.In meiosis, in metaphase I, the centromeres of homologous chromosomes are oriented toward opposite cell poles while in meiosis II, spindle fibers extending from both cell poles attach to sister chromatids at their centromeres. Centromere Location A centromere is not always located in the central area of a chromosome. A chromosome is comprised of a short arm region (p arm) and a long arm region (q arm) that are connected by a centromere region. Centromeres may be located near the mid-region of a chromosome or at a number of positions along the chromosome. ​ Metacentric centromeres are located near the chromosome center.Submetacentric centromeres are non-centrally located so that one arm is longer than the other.Acrocentric centromeres are located near the end of a chromosome.Telocentric centromeres are found at the end or telomere region of a chromosome. The position of the centromere is readily observable in a human karyotype of homologous chromosomes. Chromosome 1 is an example of a metacentric centromere, chromosome 5 is an example of a submetacentric centromere, and chromosome 13 is an example of an acrocentric centromere. Chromosome Segregation in Mitosis Prior to the start of mitosis, the cell enters a stage known as interphase where it replicates its DNA in preparation for cell division. Sister chromatids are formed that are joined at their centromeres.In prophase of mitosis, specialized regions on centromeres called kinetochores attach chromosomes to spindle polar fibers. Kinetochores are composed of a number of protein complexes that generate kinetochore fibers, which attach to spindle fibers. These fibers help to manipulate and separate chromosomes during cell division.During metaphase, chromosomes are held at the metaphase plate by the equal forces of the polar fibers pushing on the centromeres.During anaphase, paired centromeres in each distinct chromosome begin to move apart as daughter chromosomes are pulled centromere first toward opposite ends of the cell.During telophase, newly formed nuclei enclose separated daughter chromosomes. After cytokinesis (division of the cytoplasm), two distinct daughter cells are formed. Chromosome Segregation in Meiosis In meiosis, a cell goes through two stages of the dividing process. These stages are meiosis I and meiosis II. During metaphase I, the centromeres of homologous chromosomes are oriented toward opposite cell poles. This means that homologous chromosomes will attach at their centromere regions to spindle fibers extending from only one of the two cell poles.When spindle fibers shorten during anaphase I, homologous chromosomes are pulled toward opposite cell poles but sister chromatids remain together.In meiosis II, spindle fibers extending from both cell poles attach to sister chromatids at their centromeres. Sister chromatids are separated in anaphase II when spindle fibers pull them toward opposite poles. Meiosis results in the division, separation, and distribution of chromosomes among four new daughter cells. Each cell is haploid, containing only half the number of chromosomes as the original cell. Centromere Anomalies Centromeres play an important role by participating in the separation process for chromosomes. Their structure however, can make them possible sites for chromosome rearrangements. Keeping the integrity of centromeres intact is thus an important job for the cell. Centromere anomalies have been linked to various diseases like cancer.