Thursday, October 31, 2019

Chinatown Assignment Example | Topics and Well Written Essays - 750 words

Chinatown - Assignment Example This report will be based on two major aspects of planning in Chinatown namely politics in planning and urban growth and suburbanization. In regard to the aspect of environmental issues, the role of water in the city will be analyzed. The planning and future of Chinatown is based upon how these many Chinatown roles on politics in planning are weighed. These roles make the area a community since a community is defined as a group of people habitation in the same place or having characteristics in common. Therefore, any planning should be done to benefit the existing and future residents of the area, which is not as the case in Chinatown. Planning politics commenced with the issue of water, then general welfare. Since the Chinese architecture has not changed over the centuries, the same architectural uniqueness is seen in the movie’s buildings. Most buildings are erected on raised platforms as their foundations making them higher than normal buildings. Pillars are also common in most buildings as they give support to vertical structural beams. The roofs are the most interesting part of the buildings where they have roof apexes; that are usually topped with a crest of tiles and statues for both decorative purposes and to weigh down the layer of roofing tiles for stability. The ridges are often well decorated especially for religious buildings or sometimes extended or incorporated from the walls of the buildings to form matouqiung (horse-head walls), which serve as a fire deterrent from drifting embers. These building’s designs are what gives the area it’s name because of the famous Chinese architecture that has been displayed on not only the buildings but also the gates, business premises, sculptures among other things (Chinese chamber of Commerce, 1). According to a proposed plan by the Chinese Chamber of Commerce to preserve and improve existing housing, there are certain prohibitions like conversion of upper-story housing to other uses. It a lso ensures that new buildings enhance Chinatown’s special characteristic. Parts of the area have also been designated a historic district while also setting up strict conditions before housing can be demolished. This ensures that the area maintains its identity of ‘china town’. Water in Chinatown signifies the impact on urbanization and expansion of Los Angeles. Water is a natural resource necessary for daily consumption by man; associated with political issues. In regard to The influence of the Regional Planning Association, the role of water is essential in city planning. (Southworth & Eran 72). According to Southworth (1995) an argument ensued among the officials on the costs of a through-street pavement and mainline utilities; which were not clearly understood (p. 72). According to Chinatown, water symbolizes a substantial and figurative longing which must be relieved. The longing of Los Angeles city is very self-motivated; based on water planning. This is b ecause; locating the water to the city would be very beneficial to the populace, and finances. The role of water in the movie is seen when an isolated part of Los Angeles is all dried up, and a child on a horseback who seems very thirsty is searching for water. Officials are seen in the movie using the allocated water spots as a cover for political actions; disregarding the physical state of the region. Mr. Cross decided to bring water to Los Angeles; with an intention of

Tuesday, October 29, 2019

Daycare vs. Home for Children Essay Example for Free

Daycare vs. Home for Children Essay Introduction Nowadays parents are forced to put their children to daycare because both have to work to support family. While daycare are keeping children from infant to older age and for parents are much easier to put their children to day care, there is a great deal of issues about impact behavior. This is particular for children staying to day care long time. Therefore some parents compulsory put their children to daycare. This essay will argue strongly should having children at home. It looks of daycare children behavior and specifically of understanding a difference between children in daycare and children who take at home. Firstly, there is evidence to suggest that per_school children who stay at home get individual attention so it helps to development the strong bond between the children and their mothers. For example, for infant is good time to stay at home with their mothers and having feeding face to face. Quoted (Lees,2006) 70 percent of children that had weak bond with their mothers and 90 percent of children whose having behavior problem such as emotional problem, displayed out bursts or confident with others children, they had not been in a strong bond properly in first 24 months. Therefore, It is clear per_school children who stay at home get more attention that it helps to development their social _emotional in later. Another argument supporting the preschool children should not go to daycare is that children have a negative effect on behavior. Most the children who attend to daycare are from different family with different culture also education. They might be inappropriate play skills or behavior problems. As well the preschool children easily learn from each other’s whole behavior and skills during play times, for this reason have seen behavior problems in per_school children who attend in daycare such as lying, cheating, rudeness, defiance. According to (Lees, 2006) the children who demonstrate behavior problems and also is so tough for their parents to control their bad behavior, they have been attended in daycare 20 hours daycare or more per week. A third reason is spread epidemic daisies in daycare. The children in daycare have proven to get four times sick as children who stay at home. There are millions of bacteria in daycare to children get easily sick. Cold and flu are most common diseases which is easy to treatment while some diseases are difficult to treat. For example, ringworm and chicken pox both of them are so common in daycare and treat difficulty. In addition in the air condition dust is another problem, especially for allergy and asthma suffers. Therefore it is clear those children who stay at home protected of disease. However, there are some parents believe that per_school children who go to day care are better prepared for school. Some believe they learn discipline by sitting the mat being quiet, problem solving and how to shear. As well the children who attending to day care have ability to communicate well with other children. As cited in (VAIMOSO, 2012) â€Å" kids who have gone to preschool or kindergarten come prepared to listen, they socially interact. They recognize letters and numbers, which is big step†. Furthermore, attending to day care could be beneficial both for children and parents also is the big step for them to be successful person in society. In conclusion parents should not send their per_school children to day care. The reason being the children who attend daycare can develop negative behavior and are placed in a epidemic diseases as well it is better for them stay at home where they have individual attention. I suggest if can somehow be cut or eliminate unnecessary bills during this important stage of per_school children life, could be better having one parent stay at home with them per_school children. It is therefore clear that if per_school children stay at home it is both beneficial for children and parents.

Sunday, October 27, 2019

Static And Dynamic Spectrum Allocation Computer Science Essay

Static And Dynamic Spectrum Allocation Computer Science Essay As the requirements of the wireless services keep growing, the number of variant wireless standards increases, which consequently imposes increasing stress on the fixed and limited radio spectrum. However, extensive measurements reported indicate that large part of licensed bands is in low utilization, as show in Figure 2.1. Spectrum utilization is strongly depended on place and time. Fixed spectrum allocation wastes resources. [1] Figure .1 Spectrum Utilization Nowadays applications require more bandwidth for better services. Electromagnetic spectrum, however, is a kind of limited natural resource as well as water and crude oil. Recent studies noted the poor utilization of traditional exclusive spectrum assignment. An intuitional way to improve the sparse usage is to allow an unlicensed user to access the resource during idle time. We can improve efficiency by allowing unlicensed users to exploit spectrum whenever it would not cause interference to licensed users. 2.2 Spectrum Assignment Policy: Why A fixed spectrum fraction is assigned to licensed holders on a long term basis for large geographical regions. Figure 2.2 show fixed spectrum assignment to different standards. Figure 2.2 Spectrum Assignment policy According to Federal Communications Commission (FCC), this exclusive assignment limits the usage and results in many spectrum holes, also called white space. It shows most traffic over wireless network concentrates on particular frequency, in particular region, at particular time while a significant amount of the spectrum remains unused. Throughout the whole spectra, utilization varies from 15% to 85% in frequency, time and geographic domains. Much worse is that, 90% of the time, certain portions of licensed bands are unoccupied. As users demand for better quality of services and higher data rate, efficient spectrum usage is becoming a critical issue. [2] 2.3 Static and Dynamic Spectrum Allocation: There has been numerous protocol standards on the wireless spectrum that rely on a static spectrum allocation policy under which each licensed spectrum band is statically assigned to the specific licensed service and its users. Once a spectrum band is assigned to a certain service, its allocation is not allowed to change. However, a new concept of dynamic spectrum allocation has become necessary to overcome critical limitations of the traditional static al location scheme. Recent studies have shown that the use of static spectrum allocation has degraded spectral efficiency significantly. Moreover, current standards cannot guarantee the prevention of unexpected interruptions by wireless network users. To alleviate these problems, FCC has recently suggested a new concept of cognitive radio networks (CRNs) that serves as a framework in realizing dynamic spectrum allocation. It requires the enhancement of current PHY and MAC protocols to adopt spectrum-agile features. The basic idea of s pectrum agility is to allow secondary users (SUs) or unlicensed users to access licensed spectrum bands as far as they do not produce undesirable interference with the licensed users. To achieve this goal, SUs must monitor each channelà ¢Ã¢â€š ¬Ã¢â€ž ¢s usage pattern by its PUs to identify spectrum holes or opportunities to exploit. Whenever SUs find a channel that can be utilized without interfering with its PUs, it can be assigned to and will be shared by the SUs. The SUs are also responsible for monitoring returning PUs on the channel they are currently using so as to promptly vacate the channel in such a case. [3] 2.4 Unlicensed Spectrum: There are two major advantages of using unlicensed spectrum. First, there is no requirement to register for using the spectrum and its deployment is very fast and cost effective as well. Second major advantage of using unlicensed spectrum is that it is shared among users which is indeed useful for wireless systems in which devices can dynamically change its position like notebooks, cell phones, etc. It would not be practical to require the owners of a portable device to acquire a license that covers every place they may ever wish the system to operate. Fixed applications that transmit sporadically or at fluctuating rates can also make more efficient use of unlicensed spectrum; when one is not transmitting, another can. It has been shown that cellular systems could carry significantly more traffic if they shared spectrum dynamically, provided that competing firms are willing to adopt cooperative strategies that serve their common interest. Metropolitan area networks carrying bursty da ta traffic could expect even greater efficiency gains, if competing networks can be motivated to adopt such techniques. [11] 2.4.1 ISM band: The industrial, scientific and medical (ISM) radio bands were originally reserved internationally for the use of RF electromagnetic fields for industrial, scientific and medical purposes other than communications. Figure 2.3 shows spectrum of ISM band. [13] Figure 2.3: ISM Band There are many factors which raises interest for using these bands such as time consuming standardization. Also, there is no requirement of registering the users using these bands, no particular restrictions on users for their usage and users can use the products anywhere at any place. There is no license fee for this band and the devices using these bands are cost effective. Many wireless communication standards are aimed to use unlicensed ISM band because it is easier to coexist with existing wireless networks than to assign a new separate empty spectrum. Currently most of spectrums for wireless communication are saturated. There are heavy interference and competition in ISM band because many wireless devices flow into this frequency area. On the contrary, spectrums of TV broadcasting, digital TV and wireless microphone tend to inactive depend on devicesà ¢Ã¢â€š ¬Ã¢â€ž ¢ location or time. In TV broadcasting, the spectrum is busy in TV broadcasting hours, but no one can use the spe ctrum when broadcasting signs off. Also TV spectrum is changed in compliance with localization. The 2.4 GHz ISM band has become particularly popular in last few years such as household and virtually all commercial buildings are likely to have equipment that operates in this band. Applications include wireless LANs, Bluetooth and infrared devices for short range communication and for Advanced Traveler Information and Management Systems like door openers for garage, home audio system, cordless phones, remote control, etc. 2.5 Wireless Regional Area Network (IEEE 802.22): IEEE 802.22 Working Group came in to being in November 2004 with a purpose of making a standard for wireless regional area network (WRAN) capable of using cognitive radio technology. According to its technical specifications, 802.22 WRAN systems will operate on the VHF/UHF TV bands ranging from 54 MHz to 862 MHz. The target of WRAN is to provide wireless broadband access with the average coverage radius of 33 km and can go up to 100km. The main target is to make unlicensed access to unused TV spectrum. In particular, 802.22 WRAN systems will be able to sense the spectrum, identify unused TV channels, and utilize these channels to provide broadband services for fixed wireless subscribers. While doing so, they must make sure that there is no undesirable interference with licensed users. Figure 2.4 shows the WRAN standards and application.[8] Figure 2.4: WRAN IEEE 802.22 is a standard for Wireless Regional Area Network (WRAN) which uses unused spectrum (spectrum whole) in the TV frequency spectrum on a non-interference basis. This standard is developed with the intent to give broadband internet coverage in rural areas with acceptable performance comparing with performance of DSL and cable modems. The television spectrum was selected for this application due to its propagation characteristics. Cognitive radios will reuse TV spectrum in an opportunistic way by detecting if the channel is occupied before using it. 2.6 Summary: Due to the rapid growth of wireless services, various wireless standards have been developed which are becoming a cause of major stress in fixed and limited spectrum. However fixed spectrum results in low utilization of spectrum resources as per the spectrum assignment policy. Now days, applications require more spectrum for efficient services. The fixed spectrum is not convenient for these services. Therefore, this problem can be improved efficiently by allowing unlicensed users to exploit spectrum whenever it would not cause interference to licensed users. The fixed spectrum policy that relies on a static spectrum allocation policy under which each licensed spectrum band is statically assigned to the specific licensed service and its users and its allocation is not allowed to change. In order to solve this issue a new concept of dynamic spectrum allocation also known as unlicensed spectrum policy has become necessary to overcome critical limitations of the traditional static allocation scheme. To make this concept more efficient, a new technology called cognitive radio technology has been developed. The basic idea behind this technology is to allow secondary users (SUs) to access licensed spectrum bands as far as they do not cause any harmful interference with the primary users (PUs). The unlicensed spectrum has two major advantages i.e., one is they are fast and cheap in deployment and other is unlicensed spectrum is shared. As sharing is essential for wireless networks, many wireless communication standards are aimed to use unlicensed ISM band because of complete absence of user restrictions and it is easier to coexist with existing wireless networks than to allocate new empty spectrum. Cognitive radio technology is being used in WRAN developed by IEEE 802.22 working group give broadband services in rural areas having the performance statistics comparable to DSL and cable modems by utilizing white spaces on non-interference basis.

Friday, October 25, 2019

The Significance of Gender Roles in Shakespeares The Taming of the Shr

Gender roles are undeniably a fundamental topic of critique in literature, particularly since expected gender roles have evolved in recent years. More importantly, the transcendence of these gender expectations indicates the possibility for transformation and increasing liberation in society. History explores many different stages for the sexes and their respective roles, from traditional anti-feminist times in which certain roles were strictly enforced, to more modern beliefs entailing free will and a lack of restrictions. In spite of this progress, there are always those who expedite the process while there are others that hinder development from occurring, even when it is necessary. Literary works in particular serve as a showcase for the progression of gender roles, but nonetheless reveal that through time certain elements remain consistent. Two authors who wrote in radically different time periods, William Shakespeare and Lorraine Hansberry, wrote plays that pose a threat to expected and traditional gender roles. The Taming of the Shrew (1623) is an example of an earlier work, which involves characters that manage to defeat their expected roles by acting out of the ordinary. A shrew, which is literally defined as either a small rodent-like animal or a woman with a harsh and nagging temperament (American Heritage Dictionary 1285), is used in reference to Katherine, the daughter of Baptista, who counters the expectation of women to act submissive by being loud and outspoken. In the end, even though Katherine seems to have submitted herself to society’s expectation of women, she is really only conforming in order to benefit her social role, since she realizes that accepting her role in society will be easier than counteri... ...ple are cruel, she still has big dreams of going to Africa with Asagai and becoming a doctor. In their plays, Shakespeare and Hansberry share a common element, which seems to say that some things, such as society and its expectations, are timeless. Society sets up expectations that are accepted and preferable to other members of society, and Katherine and Beneatha serve not only to demonstrate this ideology but also to argue against it and draw attention to the perpetual gender expectation of society. Works Cited Hartwig, Joan. â€Å"Horses and Women in The Taming of the Shrew†. 45. 4. (1982:Autumn): 285- 294. Newman, Karen. â€Å"The Taming of the Shrew A Modern Perspective†. 229-238. â€Å"Shrew†. American Heritage Dictionary. 4th ed. 2002. Wilkerson, Margaret B. â€Å"A Raisin in the Sun: Anniversary of an American Classic†. 38.2. (1986: Dec): 441-453.

Thursday, October 24, 2019

Marketing and Overhead Allocation Rate

Bridgeton Assignment 1. The overhead allocation rate used in the 1987 model year strategy study at the Automotive Component & Fabrication Plant (ACF) was 435% of direct labor dollar cost. Calculate the overhead allocation rate using the 1987 model year budget. Why do you get different numbers? 2. Calculate the overhead allocation rate for each of the model years 1988 through 1990. Are the changes since 1987 in overhead allocation rates significant? Why have these changes occurred? 3. Consider two products in the same product line: Product 1 Product 2Expected Selling Price $62 $54 Standard Material Cost 16 27 Standard Labor Cost 6 3 Calculate the expected gross margins as a percentage of selling price on each product based on the 1988 and 1990 model year budgets, assuming selling price and material and labor cost do not change from standard. 4. Are the product costs reported by the cost system appropriate for use in the strategic analysis? 5. Assume that the selling prices, volumes, a nd material costs for the 1991 model year will not change for fuel tanks and doors produced by the ACF of Bridgeton Industries.Assume also that if manifolds are produced, their selling prices, volume, and material costs will not change either. a. Prepare an estimated model year budget for the ACF in 1991 (1) if no additional products are dropped. (2) if the manifold product line is dropped. Explain any additional assumptions you make in preparing your estimated mode year budgets. b. What will be the overhead allocation rate under the two scenarios? 6. Would you outsource manifolds from the ACF in 1991? Why, or why not? What more information would you want before reaching a final decision?

Wednesday, October 23, 2019

Has the Indentureship System Brought Significant Value?

The contemporary Caribbean society is comprised of various forms of culture and ethnic backgrounds. The main influential force behind this cultural diversification is due to slavery and Indentureship. Indentureship is the state or period of being a servant bound to service for a specified time in return for passage to a colony. The Indentureship system lasted from 1838 to 1917. This system consists of a variety of ethnic groups such as east Indians, white labourers and Chinese.Indeed this system of indentureship did brought significant value to the Caribbean civilization. The east Indians brought along the practicing of craft, some venture into retail trade while others went into agriculture. Indian contributions to Jamaican culture are legion. Indian jewellery designs have made their mark especially in the form of intricately wrought thin, gold bangles. Indian contributions to Jamaican culture are legion. Indian jewellery designs have made their mark especially in the form of intric ately wrought thin, gold bangles.Old animosities forgotten, elements of traditional Indian dress can be found in Jonkonnu processions and many African-Jamaicans participate alongside their Indian-Jamaican brothers and sisters in the Indian inspired cultural celebrations of Hosay and Divali. The indentureship system left behind traditional Indian foods for example curry goat, roti and callaloo which most of the Caribbean countries have adopt to their national cuisine.East Indians settled in Caribbean countries such as Trinidad, Guyana, Martinique and more places in which they played a significant role in the development of the economy. These indentured laborers had saved an ailing sugar industry, which was one of the main industries that led to the growth and development of these countries. Indians brought their firm family structure in which all relations supported each other. The idea of extended family, which included several generations, was very strong. All males over 16 years w ere members of a family council.They made all decisions of the family, for example marriage, religious ceremonies and expenditure. Hindus worshipped several gods of which Brahma was the most important. He was the supreme god or creator. They believed that when people died their souls were reborn in a new body. The Hindus had very strict divisions in the society. This was known as the caste system. Each person belonged to a special group or caste. The Brahmins, or the religious leaders, were at the top of the society and the Hindus in the Caribbean continued to follow them as their leaders.