What Functions of Management Has McDonald's Leadership Used in Order Essay

What Functions of Management Has McDonald's Leadership Used in Order to Turn Around the Company and Make It Profitable - Essay Example What Functions of Management Has McDonald's Leadership Used in Order to Turn Around the Company and Make It Profitable? It is the duty of the organization to make sure that they are well equipped resources wise and as well as in the form of manpower. It is the duty of the management to make sure that they hire the right kind of people for the organization. In today’s business the role of management is very crucial. They have to hire right, organize efficiently and effectively and make sure all the business units are working as they are supposed to. In this case, Mc Donald’s at earlier was actually focusing on the growth of the number of franchises that it had. They were focused on growth but in a totally different sense. This problem was later identified by the management and the decided to deal with it by focusing more the collection of higher revenues from each of the existing branches. The entire shift in focus was a better idea as it helped increase revenues for the fast food chain. There are many functions of the management. The main four functions of management are planning, organizing, controlling and leading. It is the duty of the management to plan keeping in mind the budget that they have and the resources available. In case of Mc Donald’s, the earlier flaw was where they thought that they can make billions by just opening shop after shop.hey had failed to realize that by just opening shops they will never be able to generate revenue. This caused a serious increase in their expenses as their fixed costs increased while there was no significant increase in the revenue in fact the branches that were earlier giving profits also started turning out losses as the customers who were coming there become dispersed. If there would have been some proper planning they would have analyzed the areas and then franchised or opened up a shop so that the customers would increase in number instead of being dispersed (Aaker, David, 1991). Then, what is most amazing ab out Mc Donald’s is the cost control that they have, despite the world facing a lot of economic crunch the prices of Mc Donald’s have had no escalation, instead they are still offering the same value meal with the same service and quality. The central function of an organization’s marketing department is to anticipate consumer’s expectations about the company’s products and the best way to deliver these organizational promises. Consumer behavior encapsulates all facets of purchase, use and disposal of the product/service produced by the organization. The core element of the study of consumer behavior is the fact that the buying activities are dependent on the consumer’s personality. High risk takers indulge in the buying of new and risky product/technology which has not yet been established in the market. Further, consumer buying patterns change with the lifecycle of the consumer, because the consumer itself undergoes personality changes. The control and the leading quality of the management is visible from the way that they had anticipated the fact that it’s the ethnic groups that are basically introducing newer trends in the markets. The new product range that they had introduced also showed the keenness that they had in attracting newer customers and the tactics that they used to retain the older existing customers. The introduction of the newer product range and making Mc Donald’s â€Å"an any time walk in restaurant† has totally changed their positioning in the market, since they are catering to much more diverse market than ever before. Delving into the psychology of buying

Free

Freedom of speech Essay Freedom of speech and the liberty to uphold oneÂ’s expression has long been the subject of many debates. It has taken centuries if not years for mankind to come to a point where many can easily voice their opinions without having to ponder over the consequences. But one should always know where to draw the line. Freedom of expression also needs to have its limits. Two of the masterminds who put forth their work on liberty and freedom of speech were John Stuart Mill and Jean-Jacque Rousseau. The concepts penned by Rousseau contradict those that were constructed by Mil; while the former focused on the functioning of the society as a whole, the latter advocated the rights of the individual to his freedom. Mill basically argument in his piece ‘On LibertyÂ’ allows for Utilitarian approach. His main idea was to give society and human nature a complete independence to mature and expand in infinite ways and direction. The main idea revolved around the kind of power that can be placed upon the individual by the society, and how that power was wrong unless exercised in self-defense. In particular, minorities were often the ones being oppressed. Mill pointed out that this tyrannical behavior was being supported by the major thinkers of that day. Public opinion followed the opinion of these thinkers and hence ended up doing the same. ‘On LibertyÂ’ sought to diminish the power the society had over an individualÂ’s freedom by giving that individual the freedom of speech. It was identified through the works that most people had precedent and preference which further provoked dissent and thus pressurized people. Mill also noted that there was no way of judging people on their inte rference into another personÂ’s private affairs. MillÂ’s idea of complete and total independence from society is contradicted in RousseauÂ’s works ‘The Social Contract,Â’ according to which man was restricted by the state and society that he existed in, once he became a part of the land he gave up the right to himself; society had a right upon the individual which he agrees to when he chooses to exist within a given society. This, he believed, was done for the greater good of the entire society; thereby his main focus was the society and not the individual, unlike Mill. For Rousseau, society itself was like a collective individual and that collective entity was sovereign and not a singular entity. He  allowed for individuals having their own aims and goals, but asserted that the will of the collective paved way for the greater good. By this definition he gives the society the power to act for the greater good and confirms that authority as absolute. He even goes as far as to recommend the death penalty for anyone who goes against this norm. Their ideas give us two different facets of life. Should one speak oneÂ’s mind or work for the greater good of the society?Mill believed in supporting diversity while condemning conformity by rejecting any form of manipulation that could be applied to a personÂ’s opinion or behavior. It was the revolutionary authorÂ’s belief that liberty forms the basis of much of the social progress that takes place. Through ‘On Liberty,Â’ it is asserted that freedom of speech is important primarily because to begin with, the opinion which most find disdainful maybe the correct one. Secondly, even if one voices a direly disproportionate view, refuting it will only help strengthen the general understanding of the topic amongst the masses. It was MillÂ’s belief that by continuously voicing thoughts, ideas and questions people kept society moving and defied stagnation. ‘The Social Contract,Â’ on the other hand goes onto state that the authority the ruler has over the state is like that of the father over his child. There is literally absolute control. Through RousseauÂ’s argument we are told that the mighty are the fittest to lead and decide what is best for the entire society. The wellbeing of the society depends on it functioning as one body, mind and soul. Each individual is part of the grand scheme which is built around the orders of the sovereign i.e. the rulers of the state. Mill charted three categories of freedom and asserted that the society was to abide by all three, if it were a free society. The first was freedom of thought and opinion, the second being the right to plan oneÂ’s life and future and the third to associate with other individuals on mutual grounds. The main idea behind this was that one should be able to pursue their own whims without hurting others in the process. Rousseau also has three implications of the contract. The first one being the fact that the conditions of the contract are same for everyone which is why everyone will collectively make it easier for everyone else to follow, secondly an individual cannot stand against the authority because he has given up that  right because he is a part of the state, and lastly, there is completely equality ergo the natural freedom that people enjoy stays intact, regardless of the social contract. It was in the ‘Discourse of InequalityÂ’ that Rousseau observed of inequality that the powerful has the choice between giving the masses an equal piece of the pie or letting the masses rot while they took everything for themselves. He was not an advocate of the powerful; he merely illustrated how the meek must always follow them because they have no other choice. The problem with RousseauÂ’s approach is that it completely rejects the claim that minorities or small groups may have on the society. If the masses chose to, they can quite literally annihilate any small sects that they wish without as much as a blink of an eye. In this regard, we are forced to side with MillÂ’s argument. However, ‘On LibertyÂ’ has its own faults because it focuses too much on the individualÂ’s needs without paying much heed to the society. Mill believed that the only instance where any one person or the society itself was justified in interfering with someoneÂ’s freedom was for their own self-preservation. In this way MillÂ’s only restriction on liberty was when it ended up harming other people, for which he advocated restraint. He was against the idea that meddling in someoneÂ’s affair. Diversity was not something to be toyed with, but the right to liberty was to be treated with respect. One has to also note that much of MillÂ’s work is at times vague on the limitations that can be placed on an individual. Another weak point is his extreme emphasis on the individual and not creating a balance between the individual and the society. While the individual was required to support the society he/she lived in, that by no means gave society any right to probe into their matters. As stated in the ‘Discourse of Inequality,Â’ “The difference between good and bad men is determined by public esteemÂ… The rank of citizens ought, therefore, to be regulated, not according to their personal merit Ââ€" for this would put it in the power of the magistrate to apply the law almost arbitrarily,” this shows that he believed that individuality would only hinder the laws that had been catered to the society as a whole. If each person was to be accounted for then the whole as Rousseau saw it, would come to a halt. Both authors present two extreme ways of life. while one advocates complete and total freedom, albeit not at the expense of others, the other goes on to suggest that freedom is restricted only is what the choices someone more powerful has selected for the majority. For freedom of speech both arguments do not fit. There needs to be a balance between the two. One cannot allow complete and total freedom of speech because inadvertently, whether it was intended or not, an individual may end up harming the society he/she lives in. If everyone began to voice a million different point of views at the same time there wouldnÂ’t be diversity, there would be chaos. Similarly, if the entire society was to follow the whims of a few men and women then society will not be able to move on. New ideas would never develop; people would never gain knowledge because knowledge would itself become restricted. Someone needs to stop talking to allow for the silence that precedes anotherÂ’s idea. History shows us that without speaking oneÂ’s mind, no real revolutions would have taken place, that being said, history also shows us how massive panic can sweep nations because of the freedom of speech that was given to the people. A balance between the two is needed. Social responsibility needs to be practiced with the freedom of speech; the two should be taken as a packaged deal and not separately. Works Cited Rousseaus Social ContractRousseaus Discourse on InequalityMills On Liberty

The Data Communication Networking Computer Science Essay

The Data Communication Networking Computer Science Essay Data Communication can mean many things to different people, but when industry with computers and their communication with them. So, people are usually discussing equipment that wan designed to provide or provide or gather information needs to communicate. Data Communication provides the tools, product and equipment to make it. The distance over which data moves within a computer may vary from a few thousandths of an inch. The amount of Data Communications builds from this point on, because there are many factors such as distance, topology, protocol, signaling, and security. Data Communications will continue to develop and change considerably for the probable future.  In the companies unlike manufacturers are not biased toward solution and the applications. Question 1 A group of business employees would like to set up a small networking office. Explain the meaning of topology. Discuss and draw the different types of network topology that are available. Answer of Question 1 Nowadays, networkings are very popular. So, a network consists of multiple computers connected with some type of interface, each have one or more interface devices such as a Network Interface Card (NIC). Each computer is support by network software that provides the server or client functionality. Network can be of any of the following three types such as Local Area Network (LAN), Metropolitan Area Network (MAN) and Wide Area Network (WAN). Hence, the local area networks (LANs) interconnect data processing devices that serve communities of users. In the first industrial in the context of the minicomputer world, than the LAN come into its to a personal computers (PCs) develop into the norm in the most networking environments. Seen the LAN networks were as the solution to the research problem. Then the computer could be fixed with a new I/O device and directly linked to one another. In the beginning, LAN is organizing to support shared printer access and to assist the movement of files between systems. The system would be taken long to harness the platform to support other application, such as email. The components of LAN are requiring the incorporation of many different components that determine how the devices are connected. Second is what the format of the data will be transm itted in. Third is how to ensure that multiple stations can transmit at the same time. By the way, this is the major elements of the LAN and some options commonly available to network designers. Metropolitan Area Network is the connection of devices that covers a geographical area of region that is larger than Local Area Network (LAN) but smaller than Wide Area Network. It implies the interconnection of network in the city into a larger network. Then the Wide Area Network (WAN) is the interconnection if devices across a geographical are. The connection spans from country to country. What is a topology? In a LAN, the organization can be described by the physical topology and the logical topology. The physical topology of network refers to the arrangement of cable, computers and other peripherals. Therefore, physical topology should not exist confused with logical topology which is the method how data actually transfers in a network as different to its design. So, the logical topology of a LAN is attaching devices and the flow of signals between attaches devices. Topology can be measured as a virtual shape or arrangement of a network. However, the shape actually does not match to the actual physical design of the devices on the computer network. The different topologies available to LAN, while discuss in the following. There are five types of topology network including star, bus, ring, tree, and mesh. Bus Topology Figure 1: Bus topology (Florida Center for Instructional Technology College of Education) (University of South Florida, 2009) Bus topology is the simplest ways a network can be organize. In bus topology, all computers are connecting to the same transmission line by using a cable. It is coaxial. Bus topology is easy to handle and put into action and is best suit for small networks. So, the advantages of bus topology are easy to use and understand. Second is requires least quantity of cable to connect the computers together. Therefore, it is less expensive than extra cabling arrangements. Ring Topology Figure 2: Ring Topology (  Network topology, kioskeas Creative Commons License Deed V2.0, 2007 ) (http://en.kioskea.net/contents/initiation/topologi.php3) In this type of ring topology, each computer is connect to the next computer with the last one connect to first. Consequently, each retransmits what it receives from the previous computer. Then the message flows around the ring in one direction. Ring topology does not subject to signal loss problem as a bus network experiences. By the way, there is no execution because there is no end to the ring. Ring topology advantages are each node has equal access and capable of high speed data transfer. Mesh Topology Figure 3: Mesh topology Mesh topology is a unique network design in each computer on the network connects to other. It is creating a point-to-point connection between each device on the network. The function of mesh design is to provide a high level of redundancy. If one network cable fails, the data always have an alternative path to get its destination. The advantages of mesh topology are provides redundant paths between devices and the network can expand without interruption to current users. Star Topology Figure 1: Star topology (Florida Center for Instructional Technology College of Education) (University of South Florida, 2009) A star topology is design with each file server, workstation, and peripherals. All of them are connect to a central network hub, switch, or concentrator. So, data on a star network passes through hub, switch or concentrator before ongoing to its destination. The common arrangement is use twisted pair cable. It also is use coaxial cable or fiber optic cable. The advantages of star topology including easy to add a new computer system to the network, crash of one workstation does not affect the entire network, uses a single access protocols and very fast Tree Topology Figure 5: Tree Topology (Florida Center for Instructional Technology College of Education) (University of South Florida, 2009) At the last tree topology is also known as a hierarchical topology and a central root node that is connecting to one or more nodes of a lower hierarchy. In each node the network has a exact fix number of nodes connect to a lower level. A tree topology combines individuality of linear bus and star topology. Hence, it consists of groups of star-configure workstations connect to a linear bus backbone cable in figure 5. Tree topology allow for the increase of an existing network, and enables schools to configure a network to meet their needs. Finally of advantages of a tree topology is point-to-point cabling for individual segments and support by numerous hardware and software venders. A group of business employees would like to set up a small networking office. Before set up the topology, office must consider when selecting a topology such as cost, flexibility and reliability. Cost of selecting that is selected for a Local Area Network has be install and perhaps a lengthy process including the installation cables and raceways. Another way for a network to be cost effective one would attempt to minimize installation cast. This may be achieved by using the suitable hardware linking cables, good modems, cost effective computers to reduce cost. Second is flexibility is one of the main advantage of a Local Area Network. It is ability to have the data processing and peripheral nodes distributes around a given area. Next be consistency is select for the network can help through allowing the location of the responsibility to be detect and to present come means of isolating the responsibility. The best of topology for small networking office is bus topology. It is the easy method of networking computers. So, this consists of a single cable as a trunk, backbone or segment that connects all the computers in the network. However, each system is directly attached to be common communication channel. Then signal is transmitter over the channel makes up the messages. While each message is passes along the guide each system receives it. After receiving the message each system scan the destination address contain in the message. On a bus topology signals are sending to all the computers in the network to keep the signal from active back and forth along the cable a terminator is place at the end of the cable. A bus topology only can one computer send data at a time, therefore the more computers in the bus slower data transmission in the network. Usually, bus topology is easy for small office use (example in figure 1). Question 2 The purpose of data link control is to provide functions like flow control, error detection and error control. Explain each function in detail. Answer of Question 2 The data communications have much more needed to control and manage to substitute. So, the list some of the requirements and objectives for effective of data communication between two directly connected transmitting receiving station such as frame synchronization, flow control, error control, addressing, error detection and recovery, control and data on same link and link management. So, line access controls determine which station can pass on next. This is easy for two stations on a full-duplex link. When more than two stations are in use on a full-duplex link such as multipoint or any number of stations is in use on a half-duplex line. However, transmission needs to be not acceptable suspiciously. The service of frame synchronization is the data link layer is responsible for providing synchronization at the frame level. This is determines the beginning and end of each frame. Therefore, the physical layer is usually responsible for maintaining bit synchronization. Flow control is so metimes of the receiving station must be able to cut off the transmitter, so the receiver may be too busy to accept of new frame. By the way, at the data link layer, flow control enables the receiver to tell the transmitter it is not ready, and to later identify its motivation to accept more frames. Another is error control is bits errors introduce by the transmission system should be correct. In the addressing on two station connections, addresses can be use to separate commands from responses. Then, addresses are necessary on multipoint links with more than two stations to denote the future receiver and sometimes to classify the sender as well. Error detection and recovery is using a grouping of order numbers and an error detecting or correcting code, so the Data Link layer protocol ensure that frame with error are accepted and not deliver to higher layers. Then, the recovery is by means of retransmission for error-detecting codes. Timers are use to ensure with the purpose of all transmit frames are receive. Maintain of control and data on same link. It is usually not attractive to have a physically divide communications pathway for control information. As a result, the receiver must be able to distinguish control information from the data being transmitted. The link management of initiation, maintenance, and termination of a sustained data exchange requires a fair amount of coordination and assistance among station. It actions for the management of this exchange are involve. This requirement is content by the physical interfacing techniques. A data link protocol that satisfies these requirements is a rather complex of issue. Begin to looking at three key of mechanisms that are part of data link control such as flow control, error detection, and error control. 2.1 Flow Control First part of data control link is flow control. Flow control is mechanisms are necessary in order to stop the transmitter form overwhelming a receiving entity with data. So, this can be achieved by letting the receiver control all data flow from the sender. Accordingly, the popular of flow control mechanisms allow the receiver to dens credit to the sender in terms of how much data can be transmitted. That function credit exist at the receiver call the window size. Flow control might be needed due to many reasons. At first is link the capacity. However, if the link is share to many transmitter-receiver pairs, the total amount of data on the link may exceed its capacity at some time. By the way, in second reason can be unavailability of sufficient memory resources at the receiver station. The link is possible is not busy and enough memory available to process or store the usual the data and still can congestion. So, congestion means a condition in which packets queue to be process inc rease a line above a certain threshold. The queue can simply be because of the receiving station having to forward in each packet on a slower link. At the same time, flow control also can be necessary and implement at all layers. When implement on DLC layers, the results in rule of data flow across a single link. Thus, of implementation scheme is when the widow size is in one packet. Finally, flow controls have two examples to processes. There are stop-and-wait (SnW) flow control and sliding window flow control. 2.1.1 Stop-and-Wait (SnW) Flow Control In this system, stop-and-wait is an entity transmits a packet. After, the destination entity receives the packet, and then it indicates its motivation to accept another packet by sending back an acknowledgement to the packet just receive. So, this small packet is call as Acknowledgement Packet (ACK). At figure 6 illustrates a timing diagram. Figure 6: Stop-and-Wait Flow Control (Data Communication Principles for Fixed and Wireless Networks, 2002) The transmission time is due to a limited capacity of a link. So, propagation time is due to a limited velocity of signal propagation. Then, the processing time is due to limited processing capacity of the receiving station. It depends on a number of factors, including but not limited to, processor type, queue size and protocol type use after receiving a data packet. 2.1.2 Sliding-window (SW) Flow Control Figure 7: Sliding-window (SW) Flow Control  ¼Ã‹â€ Data Communication Principles for Fixed and Wireless Networks. ¼Ã¢â‚¬ ° Sliding window is generality of Stop and Wait to more than one packet. This for system to receiving allows the sender to send up a sure maximum number of packets without getting further of ACK. Therefore allow to be transmitter without receiving an ACK is to be maximum window size. Usually each ACK allows to expanding the number of packets to the maximum window size. In the example, the receiver specifies a maximum window size of 4. The packets can be sequence number from 0 through 7 a maximum of four packets are allows to be transmit without getting further credit. Thus, suppose that packets numbers 0,1,2 and 3 have been transmit and then the receiver has not accept them. After the processing of receive packets is success then the receiver an ACK for the entire four packets. Finally, on receiving the ACK packet, the transmitter is acceptable to send packet numbers 4,5,6 and 7. 2.2 Error Detection Error detection is about communication impairments and the effect of data rate and signal to noise ratio on bit error rate. This system will be error, resulting in the change of one or more bits in transmitted packet. At example, there have two copies of data. The receiver compares copies equal then no error. So, the probability of same bits corrupted low. The parity is value bit. That character has even or odd number ones. The even number bit error goes understand. 2.2.1 Cyclic Redundancy Check (CRC) CRC is an extension of the parity block concept. It is nothing degree polynomial. The value of each bit is a coefficient. It is given a k bit block of bits, or message, the transmitter generates an n bit sequence. So, the resulting packet consisting transmit k+n bits which is exactly divisible by some number. The receivers then divide the incoming packet by that number and if no remainder, assume was no error. 2.3 Error Control Error controls are transmission impairments random and affect bits at random locations. So, describe a link with respect to its impairment effect is by probability of error. That call variously link error probability, bit error probability, bit error rate, or frame error rate. In addition, there have two type of errors are lost frame and damaged frame. Lost frame is a frame fails to arrive at the other side and damaged frame is a recognizable frame does arrive, but some of the bits are in error. In the most common technique for error control are bases on some or the entire following element. There are error detection, positive acknowledgment, retransmission after timeout, and negative acknowledgement and retransmission. 2.3.1 Stop and Wait ARQ This is sending station keeps a copy of every packet transmitted. Once transmission it waits for an ACK for each packet before sending the next packet. If an ACK received before the timeout, the stored copy of transmitted packet is discarded. So, an expiring the timer then the transmitter sends the copy of the packet again. If ACK damaged, transmitter will not recognize it. The transmitter will retransmit the same packet on timer expiry. There will start from sequence number; the receiver will know that this was duplicated packet. Example in figure 8. Figure 8: Stop and Wait ARQ 2.3.2 Go back N ARQ Go and back ARQ are the transmitter sends packets as allowed by current window size. If there are no errors in the packets, then the normal flow control operation continues as discussed above. In the way of error, the receiver discards the packet and does not increment its receiver window pointer. When it receives the packet with next sequence number, it may send a negative acknowledge (NAK). Usually, NAK implemented by sending the ACK packet asking for the discarded packet. If transmitter is already expecting an ACK for this packet, it will know that the packet in question was never received. Then go back by resetting its window passion at the discarded packet number and restart transmission of this packet. 2.3.3 Selective reject ARQ The only packets retransmitted are those that receive a negative acknowledge. It calls as SREJ, means time out. Protocols provide for a selective reject mechanism in which retransmission is sought for only the packet that was in error instead of a while black of packets. This can be accomplished by sending a NAK as soon as a packet is received in error. After the packet in error is successfully receive, all the packets can be marked as received and processes by the receiver. This performance measure of the ARQ schemes, then the selective reject tops. Finally, the performance of go back N ARQ is much better than stop and wait ARQ. Conclusion Finally I have to finish this assignment. What I have know about networking and Data link control. In first question is easy for me to do. Networkings have three types such as Local Area Network (LAN), Metropolitan Area Network (MAN) and Wide Area Network (WAN). The main for question asking is local area networking. Local Area Networking for personal computers and back end network and storage area network. Then, spare out five type topology. There are bus, star, ring, mesh and tree. All of them have advantages and disadvantages. Because, it can give users to choose which want is better for their home or company. In question two, I have explained all of them like flow control, error detection and error control. Three type of them are discussing transmit or retransmit. In conclusion, I have learned about networking how to set up their system and the mechanism how to process the packets.

Energy :: essays research papers

-  Ã‚  Ã‚  Ã‚  Ã‚  The pump found in the tropical oceans is responsible for the movement of air and the surface ocean over most of the globe. The energy source that drives this pump is solar radiation from the sun. -  Ã‚  Ã‚  Ã‚  Ã‚  The second pump is the deep ocean circulation which is also driven by the sun. -  Ã‚  Ã‚  Ã‚  Ã‚  The third pump is the heating of the earth’s interior by radioactive decay and radiation of heat causes plate tectonics and continents to move. This long term pump has ceased in Mars. -  Ã‚  Ã‚  Ã‚  Ã‚  The winds and ocean currents redistribute the energy received from the Sun -  Ã‚  Ã‚  Ã‚  Ã‚  Air moves from high pressure areas to low pressure areas horizontally due to horizontal differences in pressure. -  Ã‚  Ã‚  Ã‚  Ã‚  As a parcel of air warms up it becomes more buoyant and the air rises. Warmer air has less density. -  Ã‚  Ã‚  Ã‚  Ã‚  Pressure differences among air masses are typically related to the distribution of surface temperatures -  Ã‚  Ã‚  Ã‚  Ã‚  The radiation reaching the Earth is spread over larger and larger areas as we move from the equator to the poles. You get more light per unit area at the equator than at high latitudes. -  Ã‚  Ã‚  Ã‚  Ã‚  The incoming solar radiation varies with latitude and seasons, whereas the outgoing terrestrial radiation depends on the temperature at the surface and atmosphere. -  Ã‚  Ã‚  Ã‚  Ã‚  Primary causes for temperature distribution on earth are because it’s warmer at the equator and colder at higher latitudes. -  Ã‚  Ã‚  Ã‚  Ã‚  The solar radiation absorbed at the surface varies with cloud cover and atmospheric absorption. -  Ã‚  Ã‚  Ã‚  Ã‚  Heated air rises at the equator causing air to move towards the equator. This converging air makes up the intertropical convergence zone. -  Ã‚  Ã‚  Ã‚  Ã‚  Rising air cools which causes it to loose its water in the form of rain. -  Ã‚  Ã‚  Ã‚  Ã‚  Areas of rising air cause low pressures. -  Ã‚  Ã‚  Ã‚  Ã‚  The warmer stratosphere acts as a barrier to the rising warm air causing it to spread out and diverge. As the air diverges it becomes more and more cooler and it sinks at 30 degrees N/S of the equator (Hadley Cell) -  Ã‚  Ã‚  Ã‚  Ã‚  Most of the earth’s deserts are located at about 30 degrees N/S of the equator. Descending air causes an area of high pressure at this 30 degrees N/S -  Ã‚  Ã‚  Ã‚  Ã‚  Hadley Cell: the convergence occurring in the tropics and divergence some 30 degrees N/S of it is called the Hadley Cell. -  Ã‚  Ã‚  Ã‚  Ã‚  The Hadley Cell and the ITCZ are not continuous around the globe. -  Ã‚  Ã‚  Ã‚  Ã‚  The equatorward-moving cold air meets the warm air moving poleward from the subtropics producing a zone of steep temperature gradients called the polar front zone at approximately 60 degrees N/S latitude.

Kafka’s Metamorphosis and Darwinian Theory

Reading Franz Kafka’s â€Å"The Metamorphosis†, one is inclined to think that perhaps the writer had Darwin in mind when he wrote the story. The story centers on the transformation of its protagonist, Gregor Samsa, and his family’s journey of survival through it. At the heart of the story resounds Darwin’s theory of the evolution of the species – that organisms change and evolve in order to survive, that the ultimate game is the survival of the fittest.Gregor’s transformation precipitated two struggles to survive – his own as a giant bug, and his family’s. It could be that Kafka was thinking along the lines of the essential Darwinian concepts – organisms change to cope, and that organisms adapt to the changes in their environment in order to survive. In the story, Gregor wakes up as a giant bug without his knowing or ever finding out the reason for his transformation. He was a traveling salesman, and was the familyâ€℠¢s breadwinner – he takes care of his aging parents and younger sister, pays off his father’s debts on top of addressing the family’s needs like rent and groceries.He was dissatisfied with his work but he is forced to keep at it to support his family. He dreams of eventually finding a better job as soon as he pays off his father’s debts. He devotes much of his time working sacrificing his own needs and desires, having no time to pursue his own interests or to foster any lasting or satisfying relationships. Perhaps his transformation was subconsciously desired – that Gregor wanted more than what his current life offered, and it was his subconscious’ way to show what he felt inside – him, a human being treated like an insect, dehumanized by the demands of work and family life, struggling to keep a bit of humanity he still has left. As in Darwin’s theory, it is not that organisms transformed themselves in an instant, but rather re alized their needs and wants and developed the means to achieve those.Whatever the reasons behind Gregor’s transformation, what is clear is that Gregor and his family both struggled to live after it happened. Gregor, having accepted the fact that his body has changed and that in order to move about he will have to get used to it, worked at moving his limbs to walk and move around. It was difficult to move around with new body, but he managed to learn how to, he needed to. Further, he and his family learned that with his new form, he could no longer eat the food that he used to enjoy, and that his dietary needs have changed. Whereas when he was human he wanted fresh foods, now he finds out that he is repulsed by it and can only eat rotting left-overs.The family, too, struggled with Gregor’s transformation. First, they cannot bear to see him as an insect, and more than that, they were worried about their financial situation. Although in Gregor’s eyes the father wa s but an old man who has not worked for five years and is entitled to a retirement of leisure, and his mother a frail woman who has asthma, and his younger sister a thing of beauty whose life has been so protected and pampered, and perhaps the family saw themselves the same way, but nevertheless, under their present circumstances they found it in them to fend for themselves.The father found work as a bank messenger, the mother sewed lingerie for an apparel shop, and the sister became a salesgirl and studied French and shorthand to find a better paying job in the future. Moreover, they also took in boarders to increase their income. They found that they could survive by themselves when they had to, that they did not really need Gregor – they adapted to the situation in order to live.In the end, Kafka’s The Metamorphosis is a story that chronicles man’s means and ways of survival, as he has done so all throughout history transforming into what he is today. In a wa y, it could be seen as a tribute to the principles that Drawin espoused in his theory of the evolution of species – that organisms, man above all, will adapt just to live, and that only those who are the fittest will survive.

Frederic Chopin essays

Frederic Chopin essays Frederic Chopin was a very famous pianist who started studying piano when he was four, and played at a private concert in Warsaw when he was eight years old. At age 16 Chopin was already well known for his music, and at that time he was enrolled in the Warsaw Conservatory of Music. His teacher Joseph Elsner was said to have done a brilliant job preparing him for his life in music. His music, which is romantic and lyrical in nature, is characterized by originality, adventurous harmony, rhythm, and poetic beauty. His music is considered to be romantic in content, but very different from the romanticism of the time. Chopin felt that many performance details, such as phrasing, dynamics, pedaling, and articulation, were not fixed elements of his music, even though they have a substantial impact on the way it sounds. Another thing that sets him apart from other musicians is the fact that he received little or no criticism from anyone about his music. Very much unlike many other famous musicians, Chopin could not stand to perform in concerts and as a result it is said that he performed in less than thirty over the course of his entire life. Whe n Chopin gave music lessons, he commanded as much as thirty francs per lesson, which at the time was a very large amount money. Chopin greatly influenced other composers, such as the Hungarian pianist and composer Franz Liszt, German composer Richard Wagner, and French composer Claude Debussy. As a pianist he created a style that dominated the entire second half of the nineteenth century and was not changed until Debussy and Prokofiev came along. ...