Open Flow Essays

Open Flow Essays Open Flow Essay Open Flow Essay Load Balancing Surya Prateek Surampalli Information Technology Department, Southern Polytechnic State University [emailprotected] edu Abstract- in high-traffic Internet today, it is often desirable to have multiple servers that represent a single logical destination server to share the load. A typical configuration comprises multiple servers behind a load balancer that would determine which server would serve the request of a client. Such equipment is expensive, has a rigid set of rules, and is a single point of failure.In this paper, I propose an idea and design for an alternative load-balancing architecture with the help of an OpenFlow switch connected to a NOX controller that gains political flexibility, less expensive, and has the potential to be more robust to failure with future generations of switches I. Introduction In today’s increasingly internet-based cloud services, a client sends a request to URL or a logical server and receives a response from a potentially multiple servers acts as a logical address server.Google server is said to be the best example, the request is sent to server farm as soon as the client resolves the IP address from the URL [1]. Load balancers are expensive that acts as a reverse proxy and distributes network or application traffic across a number of servers. Load balancers are used to increase capacity (concurrent users) and reliability of applications. They improve the overall performance of applications by decreasing the burden on servers associated with managing and maintaining application and network sessions, as well as by performing application-specific tasks [1].Since load balancers are not basic equipment and run custom software, policies are rigid in their choices. Specific administrators are required and also the arbitrary policies are not possible to implement. Since running policy and the switch are connected it is reduced to a single point of failure [2]. The order of magnitude will cost less than a commercial load-balancer if architecture with an OpenFlow switch is implemented which is controlled by the commodity server and also provides flexibility for writing patterns which allow the controller to be applied arbitrary political [1].If the next generation of OpenFlow switches has the capability of connecting to multiple controllers, there is a chance of making the system much robust to abortion by keeping the any serv er behind the which that acts as the controller [1]. II. Background A. Load Balancing Load balancing helps make networks more efficient. It distributes the processing and traffic evenly across a network, making sure no single device is overwhelmed [1]. Web servers, as in the example above, often use load balancing to evenly split the traffic load among several different servers.This allows them to use the available bandwidth more effectively, and therefore provides faster access to the websites they host [3]. Whether load balancing is done on a local network or a large Web server, it requires hardware or software that divides incoming traffic among the available servers. Networks that receive high amounts of traffic may even have one or more servers dedicated to balancing the load among the other servers and devices in the network. These servers are often called (not surprisingly) load balancers [1].Load balancing can be performed using dedicated hardware devices such as load balanc ers or having intelligent DNS servers. A DNS server can redirect traffic data centre with a heavy load or redirect requests made by customers for a data centre that is less network stretches from clients. Many data centres use of expensive hardware load balancing equipment that makes in distributing the network traffic across multiple machines to avoid congestion on a server. A DNS server resolves a hostname to a single IP address where the client sends the request. To the outside world there is a logical address that resolves a host name [3].This IP address is not associated with a single machine, but is the type of service a client request. DNS can resolve a host name to a load balancer within a data centre. But this could be avoided for safety reasons and to avoid attacks on the device. When a client request comes to the load balancer, the request is redirected according to the policy. B. OpenFlow Switch An OpenFlow switch is a software program or hardware device that forwards pa ckets in a software-defined networking (SDN) environment. OpenFlow switches are either based on the OpenFlow protocol or compatible with it [1].In a conventional switch, packet forwarding (the data plane) and high-level routing (the control plane) occur on the same device. In software-defined networking, the data plane is decoupled from the control plane. The data plane is still implemented in the switch itself but the control plane is implemented in software and a separate SDN controller makes high-level routing decisions. The switch and controller communicate by means of the OpenFlow protocol. The OpenFlow switch on the other hand uses an external controller called NOX to add rules into its flow table. C. NOX ControllerNOX is a network control platform, that provides a high-level programmatic interface upon which network management and control applications can be built. In brevity, NOX is an OpenFlow controller [3]. Therefore, NOX applications mainly assert flow-level control of t he network meaning that they determine how each flow is routed or not routed in the network. The OpenFlow switch is connected to the NOX controller and communicates over a secure channel using the OpenFlow protocol. The current design of OpenFlow only allows one NOX controller per switch. The NOX controller decides how packets of a new flow should be handled by the switch.When new flows arrive at the switch, the packet gets redirected to the NOX controller which then decides whether the switch should drop the packet or forward it to a machine connected to the switch. The NOX controller can also delete or modify existing flow entries in the switch. The NOX controller can execute modules that describe how a new flow should be handled. This provides us an interface to write C++ modules that dynamically add or delete routing rules into the switch and can use different policies for handling flows. D. Flow Table A flow table entry of an OpenFlow switch consists of a header fields, counter s and actions.Each flow table entry stores Ethernet, IP and TCP/UDP header information. This information includes destination/source MAC and IP address and source/destination TCP/UDP port numbers. Each flow table entry also maintains a counter of number of packets, and bytes arrived per flow. A flow table entry can also have one or more action fields that describe how the switch will handle packets that match the flow entry. Some of the actions include sending the packet on all output ports, forwarding the packet on an output port of a particular machine and modifying packet headers (Ethernet, IP and TCP/UDP header).If a flow entry does not have any actions, then the switch drops all packets for the particular flow. Each Flow entry also has an expiration time after which the flow entry is deleted from the flow table. This expiration time is based on the number of seconds a flow was idle and the total amount the time (in seconds) the flow entry has been in the flow table. The NOX con troller can chose a flow entry to exist permanently in the flow table or can set timers which delete the flow entry when the timer expires. III. Load-Balancer DesignLoad balancing architecture comprises an OpenFlow switch with a control device of NOX and server machines connected to output ports of the switch server. The OpenFlow switch uses an interface to connect to the Internet. Each server has a static IP address and NOX controller maintains a list of currently connected to the OpenFlow switch servers. Each server is running web server emulation on a well known port. [pic] Figure1. Load-balancer architecture using OpenFlow switch and NOX controller The hostname of server to IP address is resolved by each client and a request is sent to that IP address on the known port number.If you consider the above diagram, when a packet is reached to the switch from the client, the header information of the packet is compared with the entries of the flow table. If the header information of t he packet corresponds to an inlet of the flow, the counter for the number of packets, the byte count is incremented, and the actions associated with the input of the flow are performed on the packet. If no match is found, the switch forwards the packet to NOX. NOX decides how the packet for this flow should be handled by the switch. NOX and then inserts a new article in the cash flow of the switch using the OpenFlow protocol.To achieve load-balancing features, the modules should be written in C++ that is executed by NOX controller. NOX should perform the function of handle () when a new flow arrives at the switch. This function sets the load balancing policy and adds new rules in the flow table of the switch. All client requests should be destined for the same IP address, then whatever the module is executed by NOX, should add rules for each flow which can modify the destination MAC and IP address of the packet with a server’s MAC and IP address. The switch will forward the p acket to the server output port after modifying the packet header.When servers return a packet to the client, the module adds an entry flow that changes the source IP address with the IP address of the host that the client sends its request. So the client should always receive packets from the same IP address. If the client connection / server connection is closed or remains idle for 10 seconds, then the inactivity timer expires causing the input stream to be deleted from the cash flow of the switch. This allows input stream recycling Servers wait for a NOX to register and then report their current load on some schedule similar to the Listener Pattern.NOX in a separate thread listening on a UDP socket for heartbeats with reported by server loads and maintains a table with the current loads of all servers. When applying for a new stream is received, it chooses the server with the lowest and the load current increases to the low current server. This prevents flow of all flows routed t o the same server as the server reports a new load. It also breaks ties by turning it into a round robin until the servers report their actual load heartbeat. Flow Algorithm Require: Flow, path 1: sourceHost = LocateSource(flow); 2: destinationHost = LocateDestination(flow); : layer = setToplayer(); 4: currentSwitch = LocateCurrentSwitch(); 5: direction = 1; //upward 6: path = null; //list of switches 7: return search (); This algorithm works as follows. When the OpenFlow controller receives a packet from a switch, it switches the control to the load balancer. Line 1 to 6 introduces the initialization for necessary variables. The load balancer ? rstly analyses the packet’s match information including the input port on the switch that receives the packet as well as the packet’s source address and destination address. Then it looks up those addresses using its knowledge about the network topology.Once the source and destination hosts are located, the load balancer calcul ates the top layer that the ? ow needs to access. We use the search direction ? ag. The ? ag has two values: 1 for upward and 0 for downward. It is initialized to 1. A path is created for saving a route grouped by a list of switches later. Line 7 calls search () that performs the search for paths recursively. In the method search (), It ? rstly adds current switch into path. It returns the path if current search reaches the bottom layer. It reverses the search direction if current search reaches the top layer.Then it calls a method 1: search () { 2: path. add(curSwitch); 4: if isBottomLayer(curSwitch) then 5: return path; 6: end if 7: if curSwitch. getLayer ( ) == layer then 8: direction = 0; //reverse 9: end if 10: links = findLinks(curSwitch, direction); 11: link = findWorstFitLink(links); 12: curSwitch = findNextSwitch(link); 13: return search (); 14:} that returns all links on current switch that are towards current search direction. Only one link is chosen by picking up the wor st-? t link with maximum available bandwidth. And then the current switch object is updated.The method search () is called recursively layer by layer from the source to destination. At last the path will be return to the load balancer. The path information will be used for updating ? ow tables of those switches in the path. Flow Scheduling The Flow scheduling functionality works as follows. Each OpenFlow switch maintains its own ? ow table. Whenever any packet comes in, the switch checks the packet’s match information with the entries in its ? ow table. The packet’s match information includes ingressPort, etherType, srcMac, dstMac, vlanID, srcIP, dstIP, IP protocol, T CP/UDP srcPort, TCP/UDP dstPort.If it ? nds a match, it will send out the packet to the corresponding port. Otherwise it will encapsulate the packet in a PACKET IN message and send the message to the controller. As a module of the OpenFlow controller, the load balancer will handle the PACKET IN message. I t ? nds a proper path by executing a search with the DLB algorithm described in Algorithm 1. The path is a list of switches from source to destination of the packet. Then the load balancer creates one FLOW MOD message for each switch in the path and sends it to the switch.This message will have the packet’s match information as well as a output port number on that switch. The output port number is directly calculated by the path and network topology. If one switch receives a FLOW MOD message, it will use it to update its ? ow table accordingly. Those packets buffered on ports of that switch may ? nd their matches in the updated ? ow table and be sent out. Otherwise the switch will repeat this process. IV. Future Work The OpenFlow specification includes an optional feature that would allow multiple NOXs to make active connections to the switch.In the case then of the NOX failing, another machine could assume the role of the NOX and continue routing traffic. Naturally the syste m would need to detect the failure, have a mechanism to remember any state associated with the current policy, and all servers would have to agree on who the new NOX was. These requirements naturally lend themselves to the Paxos consensus algorithm in which policy and leader elections can be held and preserved with provable progress [3]. We have implemented Paxos in another research project and could add it to our server implementation at the controller/signaler layer.As long as at least half of the nodes in the cluster stay up, state will be preserved and traffic should continue to flow. V. Conclusion It is possible to achieve similar functionality to a commercial load balancer switches using only physical commodities. The OpenFlow switch provides the flexibility to implement the arbitrary policy in software and politics separate the switch itself. Since the policy is decoupled from the switch, we can avoid the machine implementation of the policy of a single point of failure and t he creation of a more robust system. References [1] OpenFlow Switch Specification.Version 0. 8. 9 (Wire Protocol 0x97). Current maintainer: Brandon Heller ([emailprotected] edu). December 2, 2008. [2] Web caching and Zipf-like distributions: evidence and implications. Breslau, L. Pei Cao Li Fan Phillips, G. Shenker, S. Xerox Palo Alto Res. Center, CA. INFOCOM 1999. [3] Paxos Made Simple. Leslie Lamport [4] M. Al-Fares, A. Loukissas, and A. Vahdat. A Scalable, Commodity Data Center Network Architecture. ACM SIGCOMM, 2008. [5] C. E. Leiserson. Fat-trees: Universal networks for hardware-ef? cient supercomputing. IEEE Transactions on Computers, 1985. [6] T. Benson, A. Anand, A.Akella, and M. Zhang. Understanding Datacenter Traf? c Characteristics. SIGCOMM WREN workshop, 2009. [7] HOPPS, C. Analysis of an Equal-Cost Multi-Path Algorithm. RFC 2992, IETF, 2000. [8] W. J. Dally and B. Towles. Principles and Practices of Interconnection Networks. Morgan Kaufmann Publisher, 2004. [9] S. Kandu la, S. Sengupta, A. Greenberg, P. Patel and R. Chaiken. The Nature of Data Center Traf? c: Measurements Analysis. ACM IMC 2009. [10] N. McKeown, T. Anderson, H. Balakrishnan, G. Parulkar, L. Peterson, J. Rexford, S. Shenker, and J. Turner. OpenFlow: Enabling Innovation in Campus Networks.ACM SIGCOMM CCR, 2008. [11] R. N. Mysore, A. Pamporis, N. Farrington, N. Huang, P. Miri, S. Radhakrishnan, V. Subramanya, and A. Vahdat. PortLand: A Scalable, Fault-Tolerant Layer 2 Data Center Network Fabric. ACM SIGCOMM, 2009. [12] Beacon OpenFlow Controller https://OpenFlow. stanford. edu/display/Beacon/Home. [13] B. Lantz, B. Heller, and N. McKeown. A Network in a Laptop: Rapid Prototyping for Software-De? nded Networks. ACM SIGCOMM, 2010. [14] Y. Zhang, H. Kameda, S. L. Hung. Comparison of dynamic and static load-balancing strategies in heterogeneous distributed systems.Computers and Digital Techniques, IEE, 1997. [15] OpenFlow Switch Speci? cation, Version 1. 0. 0. OpenFlow. org/documents/Op enFlow-spec-v1. 0. 0. pdf. [16] N. Handigol, S. Seetharaman, M. Flajslik, N. McKeown, and R. Johari. Plug-n-Serve: Load-balancing web traf? c using OpenFlow. ACM SIGCOMM Demo, 2009. [17] R. Wang, D. Butnariu, J. Rexford. OpenFlow-Based Server Load Balancing Gone Wild. Hot ICE, 2011. [18] M. Koerner, O. Kao. Multiple service load-balancing with OpenFlow. IEEE HPSR, 2012. Figure 2: Load-Balancer block diagram architecture using OpenFlow switch and NOX controller.

Present Participle as Adjective

Present Participle as Adjective Present Participle as Adjective Present Participle as Adjective By Maeve Maddox As one of our readers tells her students, writers should rejoice in the present participle because it is one of the rarities of English â€Å"rules†: one thing they can count on. Unlike its sibling the past participle, the present participle always has the same ending. Reminder: English verbs have five principal parts: Infinitive, Simple Present, Simple Past, Past Participle, and Present Participle. Past participles take different forms, but the present participle always ends in -ing. Used with helping verbs, the present participle forms the continuous tenses: We were living in Taiwan at the time. (past continuous) Tom Selleck has been playing law enforcement characters for thirty-four years. (present perfect continuous) Used without a helping verb, the present participle functions as an adjective. (The -ing verb form has another use, but this post is about its function as an adjective.) Here are some specific uses of the present participle: in front of a noun Poirot solved the puzzling mystery. (modifies â€Å"mystery†) The smell of burning leaves stirs memories of my childhood. (modifies â€Å"leaves†) after a verb of perception They heard someone screaming. (modifies â€Å"someone†) The woman watched the cat creeping toward the bird. (modifies â€Å"cat†) with the verbs spend and waste Don’t waste your time trying to convince him he’s mistaken. (modifies understood subject â€Å"You.†) The inefficient blogger spent her entire afternoon researching and writing one post. (modify the subject â€Å"blogger†) to introduce a participial phrase Weeping bitterly over her loss, Gwendolyn lay on the bed for several hours. The archaeologist, sweeping the shards into a neat pile, cursed his clumsiness. It is this last use of the participle that often leads to the error known as a â€Å"dangling participle.† For example: Stubbing his toe on the step, the heavy chair fell from his grasp. Leaning affectionately toward him, her head rested against his shoulder. The participle phrases in these two examples are â€Å"dangling† because there’s no appropriate noun for them to describe. Dangling participles can be corrected in more than one way: 1. Provide an appropriate noun or pronoun for the phrase to describe: Stubbing his toe on the step, the mover dropped the heavy chair. Leaning affectionately toward him, she rested her head against his shoulder. 2. Rewrite the phrase as a clause: When the mover stubbed his toe against the step, the heavy chair fell from his grasp. She leaned affectionately toward him and rested her head against his shoulder. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Grammar category, check our popular posts, or choose a related post below:12 Types of LanguageDoes "Mr" Take a Period?Grammatical Case in English

The Positive and Negative Effects of Confucianism in East Asian Essay - 1

The Positive and Negative Effects of Confucianism in East Asian Cultures - Essay Example This report stresses that the philosophy of Confucianism was practiced in many cultures and countries in East Asia like China, Japan, Taiwan, Korea Vietnam and various Chinese occupied territories like Singapore. China however, was the birthplace of Confucianism. It was came into being from the sixth century to the third century B.C., an age described as "The Age of Philosophers". Eventually during 141 to 87 BC, it was declared as a state philosophy by the Emperor Wu of Han. Confucianism in Japan began at a time when â€Å"Confucianism† was quite different from what it is today. During the long years from the fall of the Latter Han dynasty in 220 CE through the Tang (618–907), the classics esteemed by Confucius remained an important part for those who exercised authority over others. This paper declares that the nations of East Asia constitute a part of the fastest growing economy in the world. In the past 30 years, 3 smalls East Asian nations – South Korea, Taiwan and Singapore have exhibited phenomenal economic growth which now rivals that of Japan’s. These countries are now ranked as having the world most successful economies. The explanation for this boom in the economic systems can be dedicated to the fact that Confucian values form an ethical thread across the East Asia nations. The philosophy of Confucianism is dictates a harmonious collective social order. This in turn ensures absolute loyalty and obedience to authority from the subordinates.

What do you understand by the term racism Using examples from one of Essay - 1

What do you understand by the term racism Using examples from one of the areas of policy we have covered, explain the existence of racism in contemporary Brit - Essay Example Upon making contact with the natives of these lands, the Westerners had the idea of dominating and subjugating the populace of these lands for providing them cheap labour etc to get benefited from the already existing bountiful resource base. The Renaissance had of course given a fillip to dynamism of ideas in Europe but these ideas were meant only to elevate the immediate environment and such enlightenment was not required for experimentation in the lands which were later to be colonized. It was a deliberate policy devised at the highest levels and its implementation was ensured to keep the status-quo in favour of the would-be colonizers intact. This probably must explain the background in respect of all that we associate racism currently with. And wherever the European colonizers went, they had neither any compulsion to neither extend respect to the way of life under their territories nor incorporate whatever wisdom these lands had to offer in return. Earlier, similar enterprises by powers other than those of Europe and the West also exhibited the same pattern (1). Arabs also under the zeal of their religion became colonial powers and controlled far more territories permitted by their strength in their time. In so far as a comparison is sought to be drawn between Arabs and the West, the former did understand their people and themselves changed in a way that suited their political and social correctness. The Westerns did not learn the same from Arabs despite their same religious and civilizational origins in the Semitic nature of their religion and culture. Racism is generally nourished as a sort of belief that the races have distinctive cultural characteristics determined by hereditary factors and that endows some races with an intrinsic superiority. This belief accordingly involves abuse and aggressive behaviour towards members of another race. Social scientists are of the opinion that ethnic groups have or do create a sense of grouping

The Christian’s Weapons for Spiritual Warfare Essay Example for Free

The Christian’s Weapons for Spiritual Warfare Essay Christianity presupposes the existence of the supernatural. After all, God is invisible and so are the angels and demons documented in the Bible as spirits that are present in the world inhabited by humans. Too often, however, because they are not seen, most people do not believe in the reality of the spiritual world. The Christian worldview takes into account the different unseen beings present and active in the world. This is well documented in the Bible and can be attested to by a lot of people who have been involved in one way or another in demonic possession. The church is also not spared in doubting the reality of spiritual beings at work. As such, they can easily fall prey to the wiles of Satan, which is described as â€Å"a prowling lion† in the Bible. Not only that, when they encounter demon possession or any spiritual activity involving demons. In fact, even Christians sometimes are not spared from demon activities, especially if they place themselves in places and circumstances where demons can work in their lives. Spiritual Warfare The world in which Christians live is full of circumstances where the spirit of light and darkness struggle against each other. Dr. Ed Murphy said that there is a kingdom of Christ where believers belong to and the kingdom of Satan where the powers in the air and in the world reign and influence the lives of people who choose to live outside the fold of Christ’s grace and love. This statement was presented in page 5 and I agree because this dichotomy is reflected in the different activities of people in the world. Part One of Dr. Murphy’s book talks about worldviews and how such worldviews affect the thinking of people in the world. Those who belong to the two different kingdoms necessarily espouse different kinds of viewpoints. Those who have become believers in Christ have been transformed and redeemed. They no longer belong to the sinful ways of the world, where the influence of Satan is very much at work. The saving grace of Christ enables a person to change his views and his outward expressions. As such, spiritual warfare is truly a clash of worldviews between that of the Kingdom of Heaven and that of the world. The Bible also supports the worldview that spiritual beings are very much at work in the world then and now and it is the source of authority of God’s work. Dr. Murphy also expounded on a kind of history of spiritual warfare. Satan used to be one of God’s top angels but was transformed by his desire for power and because of his pride. By relying on what the Bible says, the author traced the source of the cosmic conflict and how such conflict affects the world that we inhabit now. When Satan and his horde of fallen angels were cast down from heaven, the battleground has shifted to the earth. The fall of man in the Garden of Eden became a reality and has become the source of the rift between God and man. Dr. Murphy expounded this history in page 41. Through his explanation, I understood how humans are being influenced by demons and spirits. Christ became the centerpiece of history because He is God’s ultimate way to redeem fallen mankind from sin and shame. The battle is not complete, however, with one’s coming to Christ. It may be difficult to accept, yet, even Christians are not exempt from demon activities such as implanting thoughts and even demon-possession. Encountering such claim has taken me aback at first. However, as Dr. Murphy went on to explain the dynamics and levels of God’s protection towards His children, and the way that Christians put themselves in a position where demons may influence them, it dawned on me that he was right. He even related several real life experiences that he had. Christians therefore had a battle to fight. Such battle occurs in their minds, which is the battlefield for control. In addition, the battle also occurs at a higher level when culture collides with the claims of the gospel. Part III surveys the biblical view on spiritual warfare with a focus on the Old Testament. In the Old Testament, warfare in a lot of instances took on physical war and bloodshed. More importantly, however, is the spiritual nature of this war. The warfare between good and evil has been going on since the beginning of time. When man entered the picture, it has just been intensified. The Old Testament contained a number of promises that dealt with the promise that was fulfilled by Christ—the promise that evil and death will be ultimately conquered. Dr. Murphy made it clear that the Old Testament showed the need for an ultimate sacrifice in Christ and the inadequacy of human agency in waging spiritual warfare. Even if God made a covenant with Israel as a chosen nation in the Old Testament, there were kings and prophets who led the nation politically and spiritually. Dr. Murphy stated the role of kings and prophets in page 253. Through the role of kings and prophets, the author masterfully showed the coming ministry of Christ and of Christians. Spiritual warfare then truly involved warfare in the traditional sense—involving physical weapons. The problem, however, is that the spiritual aspect of the warfare has been disregarded and even denied. Worse, the Israelite nation forgot to keep the covenant they have with God, which led to the downfall of both the Northern and the Southern kingdom. The Old Testament was a foreshadowing of the new one. With the coming of Christ, the New Testament was put in place. Christ and the New Testament The first covenant failed to fulfill the terms of the covenant. In fact, the chosen people have failed to do their duty in becoming the light in the world. Yet, God has put in place a plan for redemption, which, incidentally, was also a part of God’s strategy against the Kingdom of Satan. Jesus Christ represented God’s ultimate plan for the redemption and restoration of creation from the clutches of Satan. Through Jesus Christ, man was no longer in the clutches of demons. Rather, a choice has been given to them so that they can be free. After all, Jesus came to set the captives free. Dr. Murphy also chronicles the encounters of Jesus with the demons. Before he started his public ministry, he was tested in the wilderness and tempted by Satan himself. It was a reenactment of the temptation that Satan presented to Adam and Eve but only this time, he did not succeed. Hence, his dominion and authority was about to be wrested away from him. He did not want to be deprived of such power, however, and so he gave a fight. In other passages in the gospels, Jesus encountered demons in the synagogue and in the tombs. In cases where he encountered demons, they recognized him for who he is—the Son of God. Jesus silenced these demons so that he can proceed with his ministry unabated. It was as if he wanted people to listen to Him instead of having to cast out demons. As the ministry of Jesus progressed, he managed to train his disciples in asserting His authority. When the disciples came back and reported that even the demons were obedient to them, he gave them occasion to celebrate while at the same time asked them to focus on building the kingdom of heaven instead of casting demons out. With the training of his disciples, Jesus passed on his authority to them. Throughout Part Four, Dr. Murphy looked at the development of the training of disciples and the way in which they encountered demons in their ministries. The Book of Acts, particularly, contains a lot of stories of demon encounters that followed the disciples wherever they go. In page 342, Dr. Murphy explained that there were times that the power encounters with demons led to conversions. There are also instances that they did not. Nonetheless, what is important is that, the early disciples knew that demons are real and that they are subject to the authority of believers given to them by Christ. The New Testament chronicles the development of the church from being a simple band of believers to a growing church in different areas of the known world then. As believers were preaching to people about Christ, no doubt the demons were also at work. That is why the believers saw the need to assert the weapons that Christ gave them for spiritual warfare. On the whole such encounters pointed out to the authority of Christ in the spiritual world as much as in the material world. Dr. Murphy also takes a look at different biblical passages dealing with spiritual warfare and the weapons that believers can use regarding against the powers in the air. The author also takes a look at some instances that even believers were besieged by demons in their efforts to live out the gospel given by Christ. Power encounters were also frequent as the church was growing. He said that power encounters were necessary in some places but not in others. This is because the people listening to the gospel of Christ should be able to make the decision of whether or not to accept Him. When the demons interfere, therefore, the Christians can assert their authority in Christ and ask these demons to get away. Christians can also be demonized. Although this may come as a shock to others, Dr. Murphy elaborates why in Part Five, particularly in page 440, where he discussed the different entry points of demons in the lives of Christians. There are sin areas that a Christian may wallow in. These areas then become the entry points for demons to establish their strongholds. I agree with Dr. Murphy’s assertion that demons can assail Christians. It is very similar to the captain of a ship who possesses the authority but refuses to assert it but instead gives the authority to somebody without rank in the ship. Demon possession of Christians works in the same way. There are a lot of manifestations of demonization. A lot of these can be easily spotted when one reads the newspaper—child abuse! The act of abusing a child can both be the cause and the result of demonization. A lot of social issues arise from demonization even though few people would accede to that. Even the mental health of people can be severely affected by demons—they lose their wits and logical judgment but instead rely on the voices telling them what to do. Dr. Murphy draws from psychology to explain that in some instances demonization leads to the alienation of the individual and leads to losing his mind. In closing, he also discusses the way in which people, Christians included can be free from demonization. The section dealing with finding freedom, however, appears to be inadequate given the number of chapters he dedicated to explore the causes of demonization. He also recognized the dangers of spiritual warfare and the way that people may shirk from taking responsibility for their action because of spiritual warfare. Nonetheless, Dr. Murphy’s book derives biblical insight and is a practical guide for all.

my last dutchess character analyzing Essay -- essays research papers

My last Duchess â€Å"That’s my last Duchess painted on the wall, looking as if she were alive.† The duck of Ferrara starts his monologue with a sight of regret that raises the sympathy of the readers and makes them feel that he had lost his beloved wife and is very upset about that. However, in the next few sentences he reveals the dark side of his character and brings the readers to a realization that the Duck of Ferrara is not a noble gentle man. In fact, he is a hysteric murderer who has killed his wife and is very arrogant, possessive, and oppressive. Like many other renaissance Ducks, The duck of Ferrara is very arrogant and selfish. He is very proud of himself and his ancestors. He believes it is his wife’s privilege to be married with him and she should be thankful for â€Å"the gift of a nine-hundred –year’s-old name† that he gave her. The fact that â€Å"[his] favor at her breast, the dropping of the daylight in the west, the bough of cherries some officious fool broke in the orchard for her†¦all and each would draw from her alike the approving speech† disgusts him. He thinks he should be treated specially not like anyone else and with â€Å"Much the same smile,† but he can not stoop â€Å"to blame this sort of trifling.† Duck of Ferrara is very materialist, possessive and greedy. He has a sense of ownership and a strong desire to control everything. He thinks of his wife’s picture only as a fine art work and refers to it as â€Å"a piece of wonder.† Her pure emotions and sentimental nature ...

Cell Phones While Driving Essay

Are cell phones dangerous while driving? Do you know hoy many deaths occur per year because of the cell phones? Everyday people die in car accidents for using cell phones while driving. According to NSC. Org â€Å"Drivers that use mobile phones are four times more likely to be involved in an accident†. Even though some people think that hand-free set is safe but it still dangerous. People should avoid talking while driving; those who defend the phone use often say that it makes no difference whether someone is talking on a phone or not. Some people who work depend on a cell phone like lawyers or businessmen. They always have to be available to answer the phone in order to keep their business running. However, their habits can create dangerous situations like a collision or an accident. Business issues can be stressful and hazardous while driving because it can cause emotional reactions that can lead to tragedies. Do to the fact that while they talk with someone of their coworkers they might get upset and this can lower their driving ability that can chief to lose control over the car. If people do not make the decision to leave aside their cell phones their routine can harm innocent people. Like mentioned before, other people say that hands-free set is safety. However, hands-free devices do not eliminate the risk of causing an accident and even worsen it by suggesting that the fact of using it is safe. Researches from the state Department of Transportation, show records that using headset can be as dangerous as holding a phone because the conversations distracts drivers from focusing on the road. Scientists had proven that people talking over the phone image person who they talking to and that does not interfere with driving. The problem is when a car swerves unexpectedly or pedestrian step into traffic, and the mind lacks the processing power to react in time. So the problem is not in holding the wheel and cell phone at the same time the cause is the lack of reaction at the particularly time People in favor of the use cell phones, say that it is a good option to do it in case of an emergency. However, I believe that it is a wrong thought. It is an illusion of safety because when people need them, the most their cell phones r they can not either reach them or find them because they could be stuck or hidden in some part of the car. People shouldn’t fully depend on cell phones owing to that fact that they are not reliable; the trusty solution for the difficult situation it could be OnStar. Which is a service that in case of an accident or an emergency will contact you. If you are not able to answer, they will contact the police department, the hospital or the fire service. Therefore, nowadays cell phones are unnecessary devices because they are unreliable in emergency situations while you are in a car accident. In conclusion, I think drivers should be more conscious about using the cell phone while driving. As I said it earlier hand-free device is not safety at all, because requires the brain to be multitask. If drivers do not give up cell-phones the number of mortalities on the roads will continue to increase.

Global economic development Essay

If Gwlad want to achieve any economic growth and attain a strong economy as its neighbors in Western Europe it must carry out detailed SWOT analysis. Such an analysis involves determining the country’s strength, weakness, opportunities and threat. One of the major strength that Gwlad enjoys as a country is it strategic location. Being close to the most developed nation in the world then it will be easier to access and export goods abroad to a market which is willing and able to buy. The second strength is the relative peace that the country enjoys and that of the surrounding nation which means that foreign investors will be willing to set up businesses (Anderson, 2007). One of the main weaknesses in this country is low level of industrialization which will translate to low out put and therefore less export compared to other country in the surrounding. Also with a population of just 3 million people it means that the aggregate demand is very low and for multinational who want to venture into such country and market their produce, the low demand expected for their products may discourage them. Furthermore this country seems to be expecting poor infrastructure and this raises the cost of doing business which discourage foreign direct investment (root 2006). The low level of services may be another hindrance to foreign direct investment. Foreign investors Global economic development 2 values a strong financial system that is able to allocate capital efficiently, mobilizing saving, monitor firms, share and diversity risk with the low level of GDP the consumers’ purchasing power is weak and therefore this further reduces the aggregate demand and output levels in the country. Also the country relies on few sectors to support the economy and there is a need to expand on such areas (Carroll, 2006). One of the major threat that the country faces is competition form rivals who are well established and their industries have become stable such that they are able to supply goods in the global market at low cost. Secondly since the country is not a member of European Union then members may impose both tariff and non tariff barriers to trade from goods exported from Gwlad which will increase the prices of good exported on members country. High prices will discourage consumers’ consumption of such goods which will ultimately reduce export and affect the country’s balance of payment. The country should take steps to proceed with privatization of most public corporations since such move encourage foreign direct investment and also improves on transparency and good governance of such companies (ridout, 2005). Since the financial system play a pivotal role on the growth of an economy the government should implement policies designed to streamline the sector. To encourage investment in the country then it is also vital to revise its taxation policies and develop a scheme geared towards benefiting foreign business. Entry of multinationals in the domestic market have some adverse effects in that some of the domestics firm are not strong enough to compete favorably with foreign firms such that they require protection from the government. Therefore the government Global economic development 3 should develop policy geared towards protecting domestic firms and also protecting capital flight which mostly affect the balance of payment of the country if not taken into consideration. To ensure that employment level in the country rises and that multinational does not take advantage of lack of employment policies to bring in expatriate even in areas where local can work then labor policies should be drawn which includes issues of minimal wages to be paid. Regional trading blocks such as the EU and others aid international trade by reducing or eliminating both tariff and not tariff barriers to trade therefore incase Gwlad want to participate more in the global market then it should realign its foreign policies which will enable it to be accommodated in such trading blocks. Active signing of both bilateral and multilateral agreement is necessary in improving penetration to foreign market thereby improving on export which translates to a higher GDP (melchet, 2005). CASE STUDY 2 Though strategic location and the issue of wages rate are considered by a foreign investor in determining whether to invest in a certain country or not, there are other major factors which are first considered. The availability of energy and associated cost are given priority in manufacturing industries since energy cost comprises a huge percentage of manufacturing cost hence one of the main determinants in making investment decision. The level of infrastructure is also considered by business. The possibility of growth and political stability should also be an integral part of such a marketing strategy since these two factors will determine whether a business will grow in foreign market. Through most of the study conducted it has also been proved that vibrant financial system Global economic development 4 also plays a major role in encouraging FDI (zedillo, 2005). On marketing Gwlad I would include such issues as tax system which benefit inventors e. g. tax allowance on investment. To increase foreign income from tourism then issues such as beautiful scenery and variety of wildlife have to be included. Further more technology play a major role in global market and therefore a mention of the technological achievement and possible advancement in technology should be included in the countries marketing strategy as firms currently rely on technology in performing it core business. Case Study 3 Technology advancement have led countries like china and Japan to be the most industrialized and leading exporters in the global Market. Consequently their economy have grown and a country like china with a population higher than the whole of Africa have been able to support its citizen and even offer loans and grant to other nations. Though technological advancement is key to economic development it has to be matched with good governance and visionary leaders who are able to inspire their people to reach new height (Polanski, 2004). In developing the economic policy there are others sectors which should be considered. This includes, health, financial sector which includes among other banks, insurance market, and the capital market and aerospace and automotive sectors in the transport industry. Case Study 4 One of the major strength of developing domestic companies is that it protects capital Global economic development 5 freight which adversely affects the balance of payment and the exchange rate. Domestic companies mostly employ people from within the country which reduces the level of unemployment. The income generated by domestic firms is usually re invested back thereby improving in economic growth. Some of the other income which is distributed as dividend to the owner increases the level of aggregate demand and saving levels due to increase in disposable income. Where aggregate demand increases business will be forced to produce more goods which lead to their growth and expansion (McDonnell, 2003). As saving levels increase businesses will have available capital for investment and through the multiplier effect where investment increase the GDP will also increase therefore accelerating the economic growth of the country. If steps are taken to develop domestic companies then they may grow to a level of being multinationals which will generate foreign income to the country. One of the major threats in developing domestic companies is that in case of harsh economic condition they may not withstand and therefore collapse. There are also possibility of political interference in the management and operation of such firms. Due to the limited fund available it may not be possible to avail all the required capital for expansion which means that such business will be operating below capacity and there will be under utilization of resources. Further more the economy can grow at a very low rate if only the domestic business are relied upon to accelerate growth. Lack of competition will be another weakness in that business will not improve on core area of performance such as technology therefore products will be of low quality and higher Global economic development 6 price with inability o compete in global market. Where competition lack then there is low level of creativity and innovation in products and service development therefore the economy will lag behind (Coparosa, 2004). Where the country is able to attract foreign direct investment then it is able to improve on technological advancement since such investors transfer technology to the host country. Further more since the country is experiencing a capital rationing this foreign firms do not require any form of financing from government and the funds available could be used to develop other sectors where foreign companies are unwilling to invest. Furthermore this foreign firm introduces competition which forces business to produce goods effectively and efficiently. The major threat of encouraging multinationals to invest in the country is that they can kill local industries incase where such firms are not able to compete favorably. Some of the multinational which occupies a greater stake in the economy sometimes dictate or influence the policy made by government to their advantage since where e government fail to comply they threaten to withdraw. One of the main weaknesses of using FDI is the issue of capital flight. Most usually send the profit generated from its operation back to it parent company which adversely affect the economy. However such businesses are able to sustain harsh economic condition and also improve the level of infrastructure in the host country. In using combination strategy the government ensures that domestic firms grow while at the same time attracting foreign direct investment which steers the economic growth. There should be a balance between protecting domestic firms and maintaining Global economic development 7 environment which enables foreign firms to compete fairly with domestic firms (Roca, 1983) Due to shortage of funds that the country experience and other benefits that accrue from having FDI it is advisable that the country employs a combination of strategy if it aim to achieve faster economic development. Case study 5 In persuading multinationals to develop local supply chain then the country have to change policies on taxation of this foreign firms. Issues such as tax allowance on investment can encourage such multinational to set up business to take such advantages of allowance. Also policies that streamline the financing system are also important since the financial system is a factor considered by multinational before venturing into any market. To encourage multinational to undertake research and development in the country then the country should have a well designed policy concerning copyright, trade marks or use of intellectual property. Also where commercial services such as advertising, local research firms and professional service are established and well regulated then multinational can be motivated to use such services. Furthermore policies concerning regional integration are important since it assist business to supply it commodity to other international market without barriers to trade both tariff and non tariff therefore improving on it competiveness in the global market. In addition the transport system is necessary for efficient operation of any supply chain therefore policies should be designed to improve such systems. Global economic development 8 CASE STUDY 6 Where a country is a member of the EU then there is no obstacle on free movement of goods, people and capital therefore the country can easily market and export its goods to members countries thereby improving on its balance of payment. Through the European social fund then the country will be able to improve on its level of employment thereby raising the standard of living of its citizen. The creation of European investment bank will facilitate the economic expansion of the country through creation of new resources. The EU has also developed a well established system of ensuring that competition is fair in the common markets which will therefore means that weak members states such as Gwlad are not exploited or taken advantage of by other strong and developed nations. However being such a member of EU then you have to adopt a common custom tariff and common commercial policy towards non members which may therefore reduce the country aggressiveness to participate in the global market. Countries such as China, Brazil and Australia are the new fastest growing economy in the world hence they provide a ground on which new market can be found. Further more bilateral and multilateral agreement with such country can be more beneficial than joining a trading block for a country with a weak economy (godison, 1988). For a country like Gwlad which need to achieve faster economic development it need to develop free trade agreement with this growing economies as they present a better opportunity for growth than a trading block. CASE STUDY 7 Global economic development 9 One of the merit of having a cluster development policy is having a balanced economy in that you do not allow foreign firm to dominate the local market but also give chance for domestic business to grow and reach a level at which they can compete in the global market . having both local and foreign firm present multinational from influencing government policy with threat to with draw since their position will be taken up by local firms. One of the problems inherent in such a cluster development policy is development of policy which attracts foreign entity while at the same time ensuring protection to domestic firms. The best option of organizing sector development is having specific policies that take special need of each sector rather than general policies which just give a general outlay instead of specific guideline for sector development (madon, 1997). CASE STUDY 8 As the company is ready to employ 30,000 people this will be a great boost to the economy as it will reduce the level of unemployment and ultimately increase the GDP. However where foreign suppliers are contracted to supply good rather than local suppliers this will lead to loss of business and capital flight from the country. Furthermore the demand by this firm that the country liars with the host country of these suppliers to request for a tax break may be an added cost to the country as they may in return ask for other favors which may hurt the economy. The government should agree to give research and development grant but not succumb to demand of allowing foreign supplies to be contracted as this will erode most of the benefit generated. Global economic development 10 References Anderson, AT 2007, ‘Developing m-services: lessons learned from the developers perspective,’ Communication of AIS, VOL. 2007, issue 20. Carroll, M 2006, ‘An interview with Prime Minister Lee,’ Institutional Investors, vol. 40, issue 9. Caporaso, J 2004,’Dependence, dependency, and power in the global system: a structure and behavioral analysis,’ International Organization, Vol. 32 Issue 1. Emerging Markets Debt Report 2000, ‘Political risk: Thumbs up for Brazil, Stormy Clime in Vennie,’ Vol. 13 Issue 4. Godison, N 1988,’London’s place in the global securities market,’ International Affairs, Vol. 64 Issue 4. Madon, S 1997,’Information-Based Global Economy and Socioeconomic Development: The Case of Bangalore,’ Information Society, Vol. 13 Issue 3. Melchet, L 2005,’The Age of Environmental Impasse? Globalization and Environmental Transformation of Metropolitan Cities,’ Development & Change, Vol. 36 Issue 5. Global economic development 11 McDonnell, I & Lecomte 2003,’ Public Opinion and the Fight against Poverty,’ DAC Journal, Vol. 4 Issue 2. polenske, K 2004,’ Competition, Collaboration and Cooperation: An Uneasy Triangle in Networks of Firms and Regions,’ Regional Studies, Vol. 38 Issue 9.

Free Essays on Sensation And Perception

Sensation and Perception Interactive Lectures Sensation is the detection and direct experience of physical energy as a result of environmental or internal events. Perception is the process by which sensory impulses are organized and interpreted. Our Sensational Senses Sensation begins with the sense receptors, which convert the energy of a stimulus into electrical impulses that travel along nerves to the brain. Separate sensations can be accounted for by anatomical codes (as set forth by the doctrine of specific nerve energies) and functional codes in the nervous system. In a rare condition called synaesthesia, sensation in one modality evokes a sensation in another modality, but these experiences are the exception, not the rule. Psychologists specializing in psychophysics have studied sensory sensitivity by measuring absolute and difference thresholds. Signal-detection theory, however, holds that responses in a detection task consist of both a sensory process and a decision process and will vary with the person’s motivation, alertness, and expectations. Our senses are designed to respond to change and contrast in the environment. When stimulation is unchanging, sensory adaptation occurs. Too little stimulation can cause sensory deprivation. Too much stimulation can cause sensory overload, which is why we exercise selective attention. Vision Vision is affected by the wavelength, frequency, and complexity of light, which produce the psychological dimensions of visual experience- hue, brightness, and saturation. The visual receptors- rods and cones- are located in the retina of the eye, and send signals (via other cells) to the ganglion cells and ultimately to the optic nerve, which carries visual information to the brain. Rods are responsible for vision in dim light; cones are responsible for colour vision. Dark adaptation occurs in two stages. The Structures of the Retina Click here to view t... Free Essays on Sensation And Perception Free Essays on Sensation And Perception Sensation and Perception Interactive Lectures Sensation is the detection and direct experience of physical energy as a result of environmental or internal events. Perception is the process by which sensory impulses are organized and interpreted. Our Sensational Senses Sensation begins with the sense receptors, which convert the energy of a stimulus into electrical impulses that travel along nerves to the brain. Separate sensations can be accounted for by anatomical codes (as set forth by the doctrine of specific nerve energies) and functional codes in the nervous system. In a rare condition called synaesthesia, sensation in one modality evokes a sensation in another modality, but these experiences are the exception, not the rule. Psychologists specializing in psychophysics have studied sensory sensitivity by measuring absolute and difference thresholds. Signal-detection theory, however, holds that responses in a detection task consist of both a sensory process and a decision process and will vary with the person’s motivation, alertness, and expectations. Our senses are designed to respond to change and contrast in the environment. When stimulation is unchanging, sensory adaptation occurs. Too little stimulation can cause sensory deprivation. Too much stimulation can cause sensory overload, which is why we exercise selective attention. Vision Vision is affected by the wavelength, frequency, and complexity of light, which produce the psychological dimensions of visual experience- hue, brightness, and saturation. The visual receptors- rods and cones- are located in the retina of the eye, and send signals (via other cells) to the ganglion cells and ultimately to the optic nerve, which carries visual information to the brain. Rods are responsible for vision in dim light; cones are responsible for colour vision. Dark adaptation occurs in two stages. The Structures of the Retina Click here to view t...

Learn Business English - The Definitive Guide

Learn Business English - The Definitive Guide Learning Business English, like any language, is a process that involves dedication and many different strategies. You need to approach learning Business English in a long-term, holistic, dynamic, and authentic way. Strengthen Your Grammar You must have strong English grammar for business writing. People simply won’t take you seriously if your writing is full of grammatical and punctuation mistakes. Strengthening grammar can seem frustrating and never-ending, but there are several small, daily actions you can take: Use Grammarly - Grammarly is a free app you can use through Google Chrome. It checks any and everything you write online, and you are able to upload documents to the site as well. There is a paid version as well, but for non-native writers I find the free version to be better because it focuses on basic and common grammar issues (the paid version identifies more sophisticated issues that aren’t applicable to all types of writing). Grammarly will help you identify and correct your mistakes. Once you know what your mistakes are, you can study up on those areas here: (grammar only) and punctuation) This blog post and video explain a technique that can help you improve your use of prepositions. Use this same technique for all sorts of grammar. Read our blog! There are lots of posts about different grammar topics, such as Pronoun Antecedent Errors here. Browse through or search by topic. Subscribe to the blog by entering your email in the field on the right-hand side of the screen. Read, Read, and Read Some More Reading is the best way to improve your Business English vocabulary and Business English writing skills. Reading anything and everything is good, but to really build effective business communication in English, you need to read business texts. Here are some good options: The Harvard Business Review. Sign up for a free account and access up to 15 articles per month (without an account, you can only access five articles per month). There are hundreds of articles written at a high level of Business English on all sorts of Business related topics. The Wall Street Journal. There is lots of good content here, though you may need a subscription or at least an account. The Economist. Again, there is good content, but you can only access a certain number of articles each month without an account. Forbes.You'll find lots of shorter articles that are easy to read, as well as longer, more in-depth stories. Paul Krugman’s blog in the New York Times This is a blog, so you willnotice some differences between this and a standard newspaper article (Use of â€Å"I," a more casual and conversational tone, etc.) You can read up to ten free articles per month at nytimes.com. After that, you need a subscription. Paul Krugman is an excellent author, and as an economist, he addresses finance and other technical topics. Fortune Magazine. This publication is most famous for its â€Å"Fortune 500,† the list of the 500 most powerful companies around the world. Bloomberg Businessweek. Another trove of well-written business news. Entrepreneur. This is geared towards entrepreneurs, as you might expect from the title and has many well written articles that will help your business skills as well as modeling good English writing. Fast Company. This publication focuses on innovative and creative ideas, so it’s useful to non-native readers from companies where time-tested approaches are valued more than innovation. It will stretch your business approach as well as providing a good model of business English. The key is to consistently read business texts from a variety of sources dailyto strengthen your business English vocabulary, reading comprehension, and ultimately writing skills. Aim to set 15 minutes aside each day to read good business English. Enjoy it with your morning coffee or tea! Write More Often Reading alone won’t strengthen your writing. Like any skill, business writing takes practice. So, to improve your business English writing skills, you need to write, and write often! Here are some ideas for how to get started: Take some of the topics that you usually write about in your field and write these in English. Google â€Å"business letter topics†, â€Å"business email topics†, or â€Å"business report topics." You’ll find lots of great ideas to get started writing. Here are some good report topics. Use these topics to practice writing letters, emails, and reports. Once you have written a practice letter/email/report, upload it to Grammarly (Can you tell we like this tool?) for grammar feedback. This will help you identify your most common grammatical errors for different styles of writing. As with reading, you’ll need to write a variety of texts consistentlyto build and maintain your business English writing skills. Practice Listening to Business English Sometimes, you need to give your eyes and fingers a break from all that reading and writing. You can still strengthen your business English skills even when you are not reading and writing! Try listening to a business podcast on your way to work or while exercising. Here are some good options: â€Å"5 Business Podcasts to Start Listening to in 2016† from Entrepreneur â€Å"The 8 Best Podcasts for Business Savvy Listeners† from Fast Company â€Å"9 Great Business Podcasts You Should Know† from Fortune Remember that podcasts are spoken English, and they tend to be conversational. The language used will often be less formal than most business English writing needs to be. But, podcasts are a great way to expand your vocabulary and knowledge base about a variety of business topics. Plus, they are a nice break from other types of practice. Like everything else, you’ll get the most benefit from listening daily! Pro Tip:Listening to conversational business English will help you to learn idioms and phrasal verbs. Take a Business English Course The methods above are great for independent work. However, to truly improve your business English communication skills, especially writing, you need to take a course that provides you individualized feedback. You need a person, not just a computer program, to tell you exactly where you are shining and where you need to focus your energy. You may find that your grammar is strong, but you need to work on tone, directness, or more appropriate vocabulary. A good course will teach you strategies and an effective process, not just quick business writing tips and tricks. You can take a face-to-face course or an online course. Instructional Solutions offers both onsite and online business writing courses for non-native speakers of English and for native speakers. We focus on context-specific writing practice with individualized feedback in key areas, including grammar, punctuation, tone, and organization. Combining independent practice with abusiness writing course that includes instructor support is the best way to improve your overall business communication skills in English.

The Power of Internal Marketing Research Paper Example | Topics and Well Written Essays - 1500 words

The Power of Internal Marketing - Research Paper Example Internal marketing dictates that excellent marketing departments, by no means, are the guarantee of extraordinary value creation for the customer. In fact, any organization, where employees point out at the marketing department by saying that â€Å"They do the marketing†, might not ever be able to realize its potential (Knudsen, 1995). Only when employees start understanding that the goal of achieving customer satisfaction, through value creation, is the job of all employees, the company becomes a pure market organization (Lauer, 2010; Boone and Kurtz, 2011). Consider the example of a Vice President of Marketing at an airline company. He has adopted a market penetration strategy and intends to do the same with cleaner cabins, lower fares, better-trained crew and providing better quality food, which lead to customer satisfaction, customer retention and word of mouth advertisement. However, the Vice President is helpless in this case because the catering department serves food of average quality in order to keep the costs down. The human resource department does not care if the crewmembers are friendly enough. The maintenance department is indifferent about high quality and constant cleaning and just focuses on ordinary services. Furthermore, the finance department has been increasing the fares in order to improve the liquidity position of the company (Cahill, 2008).