Mesopotamia Essay Example for Free

Mesopotamia Essay Mesopotamia, also known as the land between two rivers, became the grounds of many ancient civilizations that we know about today. Perhaps one of the most famous is Sumer. Sumer was a civilization that thrived off of the two river, the Tigris and the Euphrates. Using irrigation systems, the Sumerians used the floods of the rivers produced to grow crops and support the growing population. This civilization grew into an early form of a modern city, with things like business, jobs, currency, and social classes. How were the Sumerians able to keep track of money and payments and when floods happened without a writing system? Eventually, the Sumerians were able to create to worlds earliest writing system to keep record of all this. Later, that system evolved and became what we know as the Sumerians predominant style of writing, cuneiform. With all the money transactions and trading going on, people needed to know and keep record of how much the transaction was and keep record of what was being traded. The Sumerians started very simply and began trying things like using pictures to be representations for different items and animals. This was what the earliest form of a writing system was. Using that style hey could tell exactly what things were. Over some time, this system developed into using those same pictographs, but now having certain symbols for certain words. This was established by 3100 B. C. However, as more complex ideas than keeping track of trades arose, a demand for a more complex system of writing had also risen. As time progressed, s system of writing known as cuneiform or wedged-shaped began to develop. This system of writing developed by about 2900 B. C, used symbols to represent ideas, sounds, syllables and objects. The symbols were pressed into tablets of wet clay which later, were dried in the sun preserving records and ideas and their history. This very long lasting style of writing became popular among the Babylonians and the Assyrians began using it for their own languages. The writing style cuneiform began to affect the lives of the Sumerian people. It created more specialized jobs and opened the door to education. Education expanded from learning to do manual tasks into learning how to be a scribe. Being a scribe was an important thing because teaching to write back then is not like it is now. It took a lot of effort and was very time consuming. Being a scribe was what everyone wanted because it was the door to government positions, religious positions, and also got professional jobs. These jobs included architects, engineers, and scientists. What cuneiform really did for Sumer was establish a culture beyond agriculture. Citizens could now express ideas about the world and the deities who ruled it. Besides that, their realm of knowledge increased immensely because since there was now a writing system, the scribes who became scientists were able to study astronomy and record their findings. They discovered the pattern of the earth and that allowed them to accurately predict when to expect flooding from the two rivers. They also developed mathematics for the use of dividing the lands among land owners and also with math were able to establish a time system. Writing also developed into a way to express things more than knowledge. People could now write down and share very intelligent ideas and also could now write stories such as the Epic of Gilgamesh. If not for writing, the ancient civilization of Sumer might now have turned into what it did. Writing did more for them then allow them to keep records of money transactions and trade, it allowed them to turn into a more intelligent civilization and also a more expressive civilization. It created more education and jobs and showed them into a realm of knowledge which was once unreachable but thanks to writing was within their grasp. Writing allowed them to preserve the information that was passed down from generation to generation which allowed later civilization to expand on that knowledge. Their writing system not only changed their lives but also the lives of the people to come.

The Basics Of Opnet It

The Basics Of Opnet It In this lab we have followed the instructions that were given in the tutorial from the help menu. We built two networks as the first network that which is having 30 nodes and an internet server those are connected with Optical Fibre cables, and the second network that is having 15 nodes and it was connected to the first network with Optical fibre as well. And we will observe the results like LOAD and DELAY for the first network and We will repeat the same after connecting the second network to the same router. And we can observe in the graphs. Comparisons and review of the networks: All the circuit is been built by placing two networks one in first floor and second in the other floor. And we can observe it in the graph clearly. Figure 1 Both the networks in both first and second floors By the below figure we can notice the delay and Load on the server. When it was not connected to the second network the DELAY and LOAD are as shown in the figure Figure 2 Ethernet Delay (in sec) and Ethernet load (bits/sec) on the server node When the delay is observed in the server there is considerable delay , because server can receive all these nodes at the same time but the nodes are above the limit then there is a chance of delay in the server. Figure 3 This is the compared result of delay between First floor and expansion When the delay is observed in the server there is LOAD, According to this analysis we can say that the distance increased in the network can increase the load . As well as the more number of nodes also increases the load on server. Figure 5 this is the load (bit/sec) for First floor and expansion Conclusion: After this lab we can learn the basics of the OPNET IT GURU .I faced some problems with the terminology and with registration of the softwares whiles installing .This lab helped me in designing the small networks and linking them and comparing the results especially the load and delay Lab 5_ATM ASYNCHRONOUS TANSFER MODE A Connection-Oriented, Cell-Switching Technology Introduction: The goal of this lab is to analyse and examine the effect of Asynchronous Transfer Mode ATM adaptation layers and service classes on the performance of the network. There are different layers such as AAL that will discuss in this lab and will provide five service classes that can give a lot of useful information. Objective: To examine the effect of Asynchronous Transfer Mode ATM. And provide QoS capabilities through its five service classes: CBR, VBR-rt, VBRnrt, ABR, and UBR. With CBR (constant bit rate). And support all sorts of services, including voice, video, and data by using ATM. To study how the choice of the adaptation layer as well as the service classes can affect the performance of the applications. Procedure: As given in the manual create a new project after completing configured the network; initialized the network, configured the applications, followed by profiles were done. While in the subnets part first configure northeast subnet was completed and add remaining subnets was added. After that choose the statistics was tested and configure the simulation was fixed. Next duplicate the new scenario was duplicated and name it UBR_UBR. Finally run the simulation was run and the view results and analyse. Figure 1 this the CBR_UBR scenario Figure 2 this the design of north east subnet Figure 3 4 indicate the run simulation. Figure 3 Figure 4 View the Results Figure 5 this is the voice diagram that indicate the different delay between the CBR and UBR Questions and Answers 1) Analyse the result we obtained regarding the voice Packet Delay Variation time. Obtain the graphs that compare the Voice packet end-to-end delay, the Email download response time, and the FTP download response time for both scenarios. Comment on the results. Sol When we observe the voice packet delay variation in the above shown figure 5, it indicates the UBR makes delay for voice because of the service class as UBR is using for all applications for ATM Adaption layer AAL5 . While CBR is using AAL2 and we can observe a very smooth service. So we can say that CBR service class is good for Voice applications and UBR service class is good for EMAIL and FTP applications. Figures 6, 7 8 show the graph which compares the Voice packet end-to-end delay ,the Email download response time, and the FTP download response time for both scenarios. Figure 6 in Voice Packer End_ to End Delay (sec) Figure 7 Email Download Response Time (sec) Figure 8 the FTP Download Response Time (sec) By the voice packet end to end indicates that the CBR service is having higher quality when compared to UBR service. By Email download response time when compared responses from both the scenarios. From FTP responses when observed UBR_UBR the responses are beter when compared to CBR_UBR scenario. So as stated before from his graphs UBR is good for Email and FTP but not good for Voice, CBR service is good for Voice. 2) Create another scenario as a duplicate of the CBR_UBR scenario. Name the new scenario Q2_CBR_ABR. In the new scenario you should use the ABR class of service for data, i.e., the FTP and Email applications in the data stations. Compare the performance of the CBR_ABR scenario with that of the CBR_UBR scenario. Hints: To set ABR class of service to a node, assign ABR Only to its ATM Application Parameters attribute and ABR only (Per VC Queue) to its Queue Configuration (one of the ATM Parameters). For all switches in the network (total of 6 switches), configure the Max_Avail_BW of the ABR queue to be 100% and the Min_Guaran_BW to be 20%. Sol Figure 9, the delay variation for both CBR_UBR and Q2_CBR_ABR is similar that means ABR and CBR services are good quality service that uses for voice. Figure 9 this diagram of voice that indicates the delay variation Figure 10, the down load for CBR service is more than ABR service. Figure 10 this is time average for email Figure 11, CBR and ABR services are having same FTP download response time. Figure 11 FTP 3) Edit the FTP application defined in the Applications node so that its File Size is twice the current size (i.e., make it 100000 bytes instead of 50000 bytes). Edit the EMAIL application defined in the Applications node so that its File Size is five times the current size (i.e., make it 10000 bytes instead of 2000 bytes). Study how this affects the voice application performance in both the CBR_UBR and UBR_UBR scenarios. (Hint: to answer this question, you might need to create duplicates of the CBR_UBR and UBR_UBR scenarios. Name the new scenarios Q3_CBR_UBR and Q3_UBR_UBR respectively.) Sol: When we decrease the size of the file the QoS will improve, as the traffic congestion will decrese as in fig.13 and 14, the delay of voice time variation is same and the time average voice packet end to end is also same. And we can say as the decreasing of packet size can decrease traffic congestion. Figure 12 Figure 13 Figure 14 Concolusion: After this lab analysing the of Asynchronous Transfer Mode (ATM), and ATM adaption layers and service classes and their effect on the performance of the network. And it taught me how to deal with different layers like ATM adaption layers(AAL). Laboratory_6 (RIP) RIP: Routing Information Protocol Objective: In this lab we can analyze and configure the Routing Information protocol. R.I.P Overview: Router has to check the packets destination address and determine which output ports is the best choice to the address. By seeing the forwarding table router do the decision. And these algorithms are needed to build routing tables and the forwarding tables. Basic problem of the routing to find the lowest-cost path between two nodes, Where the cost of a path equals to the sum of costs of all edges that make the path. In this laboratory, we will build a network that utilizes RIP as its routing protocol. We will examine the routing tables generated in the routers, and also check that how RIPS is affected by link failures. Procedure: At the first the scenario named as NO_Failure was created. Network was build by using ethernet4_ slip8_gtwy and 100BaseT_LAN objects along with bidirectional 100BaseT_LAN links. After completion router configuration, remaining LANs were added. Then the statistics were chosen to realize the performance of the RIP protocol. Then simulation process was performed. The designed figure is given below : Figure-1 RIP Network (No_Failure) And we have to design a Failure scenario for that duplicate the of scenario 1, with inclusion of link node failure simulations as shown in figure-2. Figure-2 Rip Network (Failure) And after editing the attributes , which develop a link failure between Router 1 and Router 2. Then simulation process was performed. Figure-3 Comparison of number of updates in failure and No_Failure scenario. The above figures shows the number updates those are sent by the router to its routing table and when there is a failure to any other node connected to it as compared to the situation when there is no failure in any of the link. From the obtained graphs we can observe that for NO_Failure the number of updates decrease from 13 to 4 with time by approximately , because the routing table has already gathered information about neighboring nodes and after that only the information is updated that means updates being sent are less. The scenario is similar for failure in starting, but with time when the router senses link failure it again starts updating information in its routing table, the intensity of which is a little bit less then the time when it sensed the failure. RIP Trafic in No_Failure and Failure scenarios Figure-4 Comparison of RIP traffic sent in Failure and NO_Failure. Figure-5 Comparison for RIP sent traffic in failure and No Failure Scenarios. The above two graphs shows the comparison of RIP sent traffic in Failure and No_failure scenario. The above graphs the first represents overlaid comparison and second one is stacked comparison. The failure introduced into the RIP system changes the traffic sent signals and also the traffic received signals. Conclusion: By observing the results we can say that both No_failure and Failure scenarios are having different results and as the time taken for updating the Routing Information protocol is more for Failure scenario compared to NO_Failure scenario .Because the system require acknowledgement and discard the packet and resend it that takes lots of time to updating LAB 7_OSPF: Open Shortest Path First A Routing Protocol Based on the Link-State Algorithm Introduction: This lab lets us to know the working method of OSPF(Open Shortest Path First Protocol). By some analysis and steps in order to know more about this. Aim: To introduce the Open Shortest Path First (OSPF) routing protocol. And analyse the performance of the Open Shortest Path First (OSPF) routing protocol. Then set up a network that utilizes OSPF as its routing protocol. Analyse the routing tables generated in the routers. And observe how the resulting routes are affected by assigning areas and enabling load balancing. Procedure: By following the steps in the maual we can create the new project is done as we can see in the figure 1 Figure 1 create a new scinario After Creating, Configure the Network, Initialize the Network, Configure the Link Costs, Traffic Demands and figure the Routing Protocol and Addresses were completed. After that Configure the Simulation was the obtained results of the run was put it in the figure 2 3. Figure 2 run three simulation Figure 3 the result of simulation After getting the simulation result duplicate the present scenarios (Areas and Balanced Scenarios) and observe the results as shown in the figures 4,56 Results Figure 4 No_Areas Scenario paths from router A to router C Figure 5 No_Areas Scenario paths from router B to router H Figure 6 Area scenario Figure 7 the Balanced Scenario Answer the Question 1) Explain why the Areas and Balanced scenarios result in different routes than those observed in the No_Areas scenario, for the same pair of routers. Sol As the A and C router link is created as a traffic congestion in No_Areas, the packets go to other shortest path A,D,E and C are smaller as compared to A and C. And the cost is also more for A and C when compared to A,D,E and C , those are like 15 for A,D,E and C and A and C is 20.By OSPF protocol the shortest path is chosen. As the loop back interface allows a server and client to communicate on same host by using TCp/Ip the traffic packets between router A and C in the Areas scenario are expanded ,the packet will pass through link router A and C.And as per the load building option the Path cost for A,C,E,G and H and path cost for B,A,D,F and H are equal, So the packet may choose any one. 2) Using the simulation log, examine the generated routing table in Router A for each of the three scenarios. Explain the values assigned to the Metric column of each route. Hints: Refer to the View Results section in Lab 6 for information about examining the routing tables. You will need to set the global attribute IP Interface Addressing Mode to the value Auto Addressed/Export and rerun the simulation. To determine the IP address information for all interfaces, you need to open the Generic Data File that contains the IP addresses and associated with the scenarios. sol No_Areas Campus Network.RouterA,Campus Network.RouterC,163.64,0,RouterA > RouterC,Campus Network.RouterA, Network.RouterA RouterD,Campus Network.RouterD,Campus Network.RouterD RouterE,Campus Network.RouterE,Campus Network.RouterE RouterC Campus Network.RouterB,Campus Network.RouterH,168.59,1,RouterB > RouterH,Campus Network.RouterB,Campus Network.RouterC RouterB,Campus Network.RouterC,Campus Network.RouterE RouterC,Campus Network.RouterE,Campus Network.RouterG RouterE,Campus Network.RouterG,Campus Network.RouterH RouterG Campus Network.RouterC,Campus Network.RouterA,169.09,2,RouterC > RouterA,Campus Network.RouterC,Campus Network.RouterE RouterC,Campus Network.RouterE,Campus Network.RouterD RouterE,Campus Network.RouterD,Campus Network.RouterA RouterD Campus COMMON ROUTE TABLE snapshot for: Router name: Campus Network. (Router A) at time: 600.00 seconds ROUTE TABLE contents: Dest. Address Subnet Mask Next Hop Interface Name Metric Protocol Insertion Time 192.0.1.0 255.255.255.0 192.0.1.1 IF0 0 Direct 0.000 192.0.3.0 255.255.255.0 192.0.3.1 IF1 0 Direct 0.000 192.0.4.0 255.255.255.0 192.0.4.1 IF2 0 Direct 0.000 192.0.12.0 255.255.255.0 192.0.12.1 Loopback 0 Direct 0.000 192.0.13.0 255.255.255.0 192.0.3.2 IF1 20 OSPF 36.496 192.0.11.0 255.255.255.0 192.0.1.2 IF0 35 OSPF 36.496 192.0.14.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.10.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.17.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.2.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.6.0 255.255.255.0 192.0.1.2 IF0 20 OSPF 36.496 192.0.7.0 255.255.255.0 192.0.1.2 IF0 20 OSPF 36.496 192.0.15.0 255.255.255.0 192.0.1.2 IF0 20 OSPF 36.496 192.0.8.0 255.255.255.0 192.0.1.2 IF0 25 OSPF 36.496 192.0.19.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.9.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.16.0 255.255.255.0 192.0.1.2 IF0 5 OSPF 36.496 192.0.5.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.18.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 Areas scenario Campus Network.RouterA,Campus Network.RouterC,163.64,0,RouterA > RouterC,Campus Network.RouterA,Campus Network.RouterA RouterC Campus Network.RouterB,Campus Network.RouterH,168.59,1,RouterB > RouterH,Campus Network.RouterB,Campus Network.RouterC RouterB,Campus Network.RouterC,Campus Network.RouterE RouterC,Campus Network.RouterE,Campus Network.RouterG RouterE,Campus Network.RouterG,Campus Network.RouterH RouterG Campus Network.RouterC,Campus Network.RouterA,169.09,2,RouterC > RouterA,Campus Network.RouterC,Campus Network.RouterE RouterC,Campus Network.RouterE,Campus Network.RouterD RouterE,Campus Network.RouterD,Campus Network.RouterA RouterD COMMON ROUTE TABLE snapshot for: Router name: Campus Network. Router A at time: 600.00 seconds ROUTE TABLE contents: Dest. Address Subnet Mask Next Hop Interface Name Metric Protocol Insertion Time 192.0.1.0 255.255.255.0 192.0.1.1 IF0 0 Direct 0.000 192.0.3.0 255.255.255.0 192.0.3.1 IF1 0 Direct 0.000 192.0.4.0 255.255.255.0 192.0.4.1 IF2 0 Direct 0.000 192.0.12.0 255.255.255.0 192.0.12.1 Loopback 0 Direct 0.000 192.0.16.0 255.255.255.0 192.0.1.2 IF0 5 OSPF 36.496 192.0.2.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.5.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.18.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.9.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.10.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.17.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.13.0 255.255.255.0 192.0.3.2 IF1 20 OSPF 36.496 192.0.11.0 255.255.255.0 192.0.4.2 IF2 40 OSPF 36.496 192.0.3.2 IF1 40 OSPF 36.496 192.0.14.0 255.255.255.0 192.0.4.2 IF2 20 OSPF 36.496 192.0.6.0 255.255.255.0 192.0.1.2 IF0 20 OSPF 36.496 192.0.7.0 255.255.255.0 192.0.1.2 IF0 20 OSPF 36.496 192.0.19.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.8.0 255.255.255.0 192.0.1.2 IF0 25 OSPF 36.496 192.0.15.0 255.255.255.0 192.0.1.2 IF0 20 OSPF 39.238 Balanced scenario Campus Network.RouterA,Campus Network.RouterC,163.64,0,RouterA > RouterC,Campus Network.RouterA,Campus Network.RouterA RouterD,Campus Network.RouterD,Campus Network.RouterD RouterE,Campus Network.RouterE,Campus Network.RouterE RouterC Campus Network.RouterB,Campus Network.RouterH,168.59,1,RouterB > RouterH,Campus Network.RouterB,Campus Network.RouterC RouterB,Campus Network.RouterC,Campus Network.RouterE RouterC,Campus Network.RouterE,Campus Network.RouterG RouterE,Campus Network.RouterG,Campus Network.RouterH RouterG Campus Network.RouterB,Campus Network.RouterH,168.59,1,RouterB > RouterH,Campus Network.RouterB,Campus Network.RouterA RouterB,Campus Network.RouterA,Campus Network.RouterA RouterD,Campus Network.RouterD,Campus Network.RouterD RouterF,Campus Network.RouterF,Campus Network.RouterF RouterH Campus Network.RouterC,Campus Network.RouterA,169.09,2,RouterC > RouterA,Campus Network.RouterC,Campus Network.RouterE RouterC,Campus Network.RouterE,Campus Network.RouterD RouterE,Campus Network.RouterD,Campus Network.RouterA RouterD COMMON ROUTE TABLE snapshot for: Router name: Campus Network. Router A at time: 600.00 seconds ROUTE TABLE contents: Dest. Address Subnet Mask Next Hop Interface Name Metric Protocol Insertion Time 192.0.1.0 255.255.255.0 192.0.1.1 IF0 0 Direct 0.000 192.0.3.0 255.255.255.0 192.0.3.1 IF1 0 Direct 0.000 192.0.4.0 255.255.255.0 192.0.4.1 IF2 0 Direct 0.000 192.0.12.0 255.255.255.0 192.0.12.1 Loopback 0 Direct 0.000 192.0.13.0 255.255.255.0 192.0.3.2 IF1 20 OSPF 36.496 192.0.11.0 255.255.255.0 192.0.1.2 IF0 35 OSPF 36.496 192.0.14.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.10.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.17.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.2.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.6.0 255.255.255.0 192.0.1.2 IF0 20 OSPF 36.496 192.0.7.0 255.255.255.0 192.0.1.2 IF0 20 OSPF 36.496 192.0.15.0 255.255.255.0 192.0.1.2 IF0 20 OSPF 36.496 192.0.8.0 255.255.255.0 192.0.1.2 IF0 25 OSPF 36.496 192.0.19.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.9.0 255.255.255.0 192.0.1.2 IF0 15 OSPF 36.496 192.0.16.0 255.255.255.0 192.0.1.2 IF0 5 OSPF 36.496 192.0.5.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 192.0.18.0 255.255.255.0 192.0.1.2 IF0 10 OSPF 36.496 When we observe the tables both No_Area and Balanced are having same tables but they are different in Area scenario. And this occurs by some reasons like no traffic in between A and C and the area identifier ,the path will pass as per the identifier and table will be different . 3) OPNET allows you to examine the link-state database that is used by each router to build the directed graph of the network. Examine this database for Router A in the No_ Areas scenario. Show how Router A utilizes this database to create a map for the topology of the network and draw this map. (This is the map that will be used later by the router to create its routing table.) Hints: To export the link-state database of a router, Edit the attributes of the router and set the Link State Database Export parameter (one of the OSPF Parameters, under Processes) to Once at End of Simulation. You will need to set the global attribute IP Interface Addressing Mode to the value Auto Addressed/Export. This will allow you to check the automatically assigned IP addresses to the interfaces of the network. (Refer to the notes of question 2 above.) After rerunning the simulation, you can check the link-state database by opening the simulation log (from the Results menu). The link-state database is available in Classes _ OSPF _ LSDB_Export. Sol No_Areas Link State Database snapshot for: Router Name: Router A at time: 600.00 [Router Links Advertisements for Area 0.0.0.0] Link state advertisement list size: 8 - LSA Type: Router Links, Link State ID: 192.0.12.1, Adv Router ID: 192.0.12.1 Sequence Number: 47, LSA Age: 3 LSA Timestamp: 22.687 Link Type: Stub Network, Link ID: 192.0.12.1, Link Data: 255.255.255.0, Link Cost: 0, Link Type: Point-To-Point, Link ID: 192.0.16.1, Link Data: 192.0.1.1, Link Cost: 5, Link Type: Stub Network, Link ID: 192.0.1.0, Link Data: 255.255.255.0, Link Cost: 5, Link Type: Point-To-Point, Link ID: 192.0.13.1, Link Data: 192.0.3.1, Link Cost: 20, Link Type: Stub Network, Link ID: 192.0.3.0, Link Data: 255.255.255.0, Link Cost: 20, Link Type: Point-To-Point, Link ID: 192.0.14.1, Link Data: 192.0.4.1, Link Cost: 20, Link Type: Stub Network, Link ID: 192.0.4.0, Link Data: 255.255.255.0, Link Cost: 20, LSA Type: Router Links, Link State ID: 192.0.13.1, Adv Router ID: 192.0.13.1 Sequence Number: 49, LSA Age: 3 LSA Timestamp: 24.149 Link Type: Stub Network, Link ID: 192.0.13.1, Link Data: 255.255.255.0, Link Cost: 0, Link Type: Point-To-Point, Link ID: 192.0.12.1, Link Data: 192.0.3.2, Link Cost: 20, Link Type: Stub Network, Link ID: 192.0.3.0, Link Data: 255.255.255.0, Link Cost: 20, Link Type: Point-To-Point, Link ID: 192.0.14.1, Link Data: 192.0.11.1, Link Cost: 20, Link Type: Stub Network, Link ID: 192.0.11.0, Link Data: 255.255.255.0, Link Cost: 20, LSA Type: Router Links, Link State ID: 192.0.14.1, Adv Router ID: 192.0.14.1 Sequence Number: 50, LSA Age: 3 LSA Timestamp: 24.149 Link Type: Stub Network, Link ID: 192.0.14.1, Link Data: 255.255.255.0, Link Cost: 0, Link Type: Point-To-Point, Link ID: 192.0.12.1, Link Data: 192.0.4.2, Link Cost: 20, Link Type: Stub Network, Link ID: 192.0.4.0, Link Data: 255.255.255.0, Link Cost: 20, Link Type: Point-To-Point, Link ID: 192.0.18.1, Link Data: 192.0.10.1, Link Cost: 5, Link Type: Stub Network, Link ID: 192.0.10.0, Link Data: 255.255.255.0, Link Cost: 5, Link Type: Point-To-Point, Link ID: 192.0.13.1, Link Data: 192.0.11.2, Link Cost: 20, Link Type: Stub Network, Link ID: 192.0.11.0, Link Data: 255.255.255.0, Link Cost: 20, LSA Type: Router Links, Link State ID: 192.0.17.1, Adv Router ID: 192.0.17.1 Sequence Number: 52, LSA Age: 4 LSA Timestamp: 24.239 Link Type: Stub Network, Link ID: 192.0.17.1, Link Data: 255.255.255.0, Link Cost: 0, Link Type: Point-To-Point, Link ID: 192.0.16.1, Link Data: 192.0.2.2, Link Cost: 5, Link Type: Stub Network, Link ID: 192.0.2.0, Link Data: 255.255.255.0, Link Cost: 5, Link Type: Point-To-Point, Link ID: 192.0.19.1, Link Data: 192.0.6.1, Link Cost: 10, Link Type: Stub Network, Link ID: 192.0.6.0, Link Data: 255.255.255.0, Link Cost: 10, Link Type: Point-To-Point, Link ID: 192.0.15.1, Link Data: 192.0.7.2, Link Cost: 10, Link Type: Stub Network, Link ID: 192.0.7.0, Link Data: 255.255.255.0, Link Cost: 10, LSA Type: Router Links, Link State ID: 192.0.15.1, Adv Router ID: 192.0.15.1 Sequence Number: 51, LSA Age: 5 LSA Timestamp: 24.239 Link Type: Stub Network, Link ID: 192.0.15.1, Link Data: 255.255.255.0, Link Cost: 0, Link Type: Point-To-Point, Link ID: 192.0.17.1, Link Data: 192.0.7.1, Link Cost: 10, Link Type: Stub Network, Link ID: 192.0.7.0, Link Data: 255.255.255.0, Link Cost: 10, Link Type: Point-To-Point, Link ID: 192.0.19.1, Link Data: 192.0.8.1, Link Cost: 10, Link Type: Stub Network, Link ID: 192.0.8.0, Link Data: 255.255.255.0, Link Cost: 10, LSA Type: Router Links, Link State ID: 192.0.19.1, Adv Router ID: 192.0.19.1 Sequence Number: 129, LSA Age: 5 LSA Timestamp: 27.687 Link Type: Stub Network, Link ID: 192.0.19.1, Link Data: 255.255.255.0, Link Cost: 0, Link Type: Point-To-Point, Link ID: 192.0.17.1, Link Data: 192.0.6.2, Link Cost: 10, Link Type: Stub Network, Link ID: 192.0.6.0, Link Data: 255.255.255.0, Link Cost: 10, Link Type: Point-To-Point, Link ID: 192.0.15.1, Link Data: 192.0.8.2, Link Cost: 10, Link Type: Stub Network, Link ID: 192.0.8.0, Link Data: 255.255.255.0, Link Cost: 10, Link Type: Point-To-Point, Link ID: 192.0.18.1, Link Data: 192.0.9.2, Link Cost: 5, Link Type: Stub Network, Link ID: 192.0.9.0, Link Data: 255.255.255.0, Link Cost: 5, LSA Type: Router Links, Link State ID: 192.0.16.1, Adv Router ID: 192.0.16.1 Sequence Number: 130, LSA Age: 3 LSA Timestamp: 27.688 Link Type: Stub Network, Link ID: 192.0.16.1, Link Data: 255.255.255.0, Link Cost: 0, Link Type: Point-To-Po

Genetic Screening Essay examples -- Science Genetics Papers

Genetic Screening Genetic screening techniques are coming of age and the controversy that surrounds them is growing by the minute. The definition of genetic screenings is as follows: a systematic search for persons with a specific genotype. These tests that look into the essence of humanity, will allow scientist and physicians the opportunity and ability to alter the human genotype for better or worse. Genetic advancements will bring controversy at every milestone. Genetic Screening usually takes place when an individu al or group shows risk for a disease or trait. Genetic testing can pinpoint a specific allelic interaction or multiple gene interactions, which may lead to a disorder. The common thread of life is DNA and DNA is the only major requirement for genetic sc reening. With knowledge of structure and function of DNA scientists can unlock the mysteries of life. Who should be tested, when should someone be tested and who should know about the results are some of the small questions that society must answer about the ethics of genetic testing. Ethics plays a major role in understanding the controversy that surrou nds genetic testing. In the following pages I will discuss ethics, techniques, types of test available, major issues, pros and cons associated with genetic screening and finally my opinion. To fully understand the concept of genetic screening some essentials background knowledge is required. First, life replicates itself for the most part in the same manner in all organisms. Second, DNA is the molecule of heredity. DNA provides life its bl ueprints for building, replicating and surviving. Humans have a wide variety of DNA sequences, but the majority of sequences are common to all humans. DNA condenses to f... ...at genetic screening and genetic test are the way of the future and can benefit all with proper regulation. References Allen, B., (1994). Predictive genetic testing: ethical, legal and social implications. USA Today Nov 1994:66-69. Reference 2. Harper, P., (1993)Insurance and genetic testing. The Lancet Jan1993:224-228. Reference 3. Roberts, L. (1990) To test or not to test? Science 247:17-19. Reference 4. Time(1996) Do you want to know if the news is bad? Time v148:29 Reference 5. Blatt, R., An Overview of Genetic Screening and Diagnostic Test in Health Care. Obtained form www.geneletter.org/0996/screening.htm Stawicki, S., Pros of Genetic Screening. Obtained form: biology.uoregon.edu/Biology_WWW/Biospheres/winter95/GeneticS/G.ScreenPros.html Ynachinski, S., Genetic Screeing for Disease. Obtained form www.biotech.ca/projects/tbi/tbi02.htm

Rememory in Toni Morrisons Beloved Essay -- Toni Morrison Beloved Ess

Rememory in Toni Morrison's Beloved To survive, one must depend on the acceptance and integration of what is past and what is present. In her novel Beloved, Toni Morrison carefully constructs events that parallel the way the human mind functions; this serves as a means by which the reader can understand the activity of memory. "Rememory" enables Sethe, the novel's protagonist, to reconstruct her past realities. The vividness that Sethe brings to every moment through recurring images characterizes her understanding of herself. Through rememory, Morrison is able to carry Sethe on a journey from being a woman who identifies herself only with motherhood, to a woman who begins to identify herself as a human being. Morrison glorifies the potential of language, and her faith in the power and construction of words instills trust in her readers that Sethe has claimed ownership of her freed self. The structure of Morrison's novel, which is arranged in trimesters, carries the reader on a mother's journey beginning with th e recognition of a haunting "new" presence, then gradually coming to terms with one's fears and reservations, and finally giving birth to a new identity while reclaiming one's own. Morrison characterizes the first trimester of Beloved as a time of unrest in order to create an unpleasant tone associated with any memories being stirred. Sethe struggles daily to block out her past. The first thing that she does when she gets to work is to knead bread: "Working dough. Working, working dough. Nothing better than that to the day's serious work of beating back the past" (Morrison 73). The internal and external scars which slavery has left on Sethe's soul are irreparable. Each time she relives a memory, she ... ...ge with Sethe. She not only searches for her face, but wants to be that face. In taking ownership of herself, Sethe unshackles herself from the ghosts of her past. Beloved has helped Sethe to free herself, and now can finally depart. Beloved takes Sethe's complex past and from it lifts one of life's simple truths: only you can define yourself. Sethe is finally free and at peace. From spiteful to loud to quiet, 124 Bluestone Road has evolved just as the characters have. All have remembered. Redemption comes because the past has been reconciled. Forgetting comes only with the pain of remembering, and in a world of rememories, we are bound to bump in to one of our own. Morrison gives birth to a story and in doing so claims ownership for herself, which is something only she could do. Works Cited Morrison, Toni. Beloved. New York: Plume, 1987.

muslim teachings Essay -- essays research papers

Islamic teachings   Ã‚  Ã‚  Ã‚  Ã‚  The Islamic teachings about the care of the body have some similarities to our own culture. The guidelines of the care of the body are stricter in the Muslim life than in our culture. The care of the body is an important standard in the social behavior of their divine law.   Ã‚  Ã‚  Ã‚  Ã‚  Muslims believe that their body belongs to God and not to the person. That body needs to be very clean and washing the body is part of their religious rituals. Muslim has standards and guidelines for the type of clothes they wear; it has to be simple and not overly seductive or luxurious. They are allowed to dress according to the newest fashions as long as they keep it simple. Clothing is one of the big differences in our culture. First is not required by any law of God the way we dress. In our culture some people dresses with luxury and that is a sign of wealth. Overly seductive clothes is not seen well by society, but is just a sign of bad taste and not forbidden by any law of the church. We dress the way we feel more comfortable with as long as it is with taste and within the moral standards of our society. Another aspect of the Muslim care of the body is perfumes. The good aroma of perfumes reminds Muslims of paradise. The three joys mentioned by Muhammad were the company of women, prayers and the perfume. This is one of the physical joys that Muslims enjoy. The good smell of perfume, the right clothes and the cleanliness o...

Break Even Analysis

The above breakeven analysis of each variable displays the combination of the variables that result in a break-even position for the Beta project at ABC Corporation. For example, the 6% sales growth rate would result in a break-even for the project if the operating expenses grow at 8%. Other ratios are derived from sales and operating expenses so that their growth rates are also reflective of the â€Å"critical† rates – below these rates, the break-even would be violated.The forecasts of the variables depict the estimates made by ABC Corporation for each of the variables in the context of market information and judgment. In this case, all of the values are above the critical value thus it has to be re-calculated whether the combination results in a break-even or not. For example, the operating expenses growth rate increased by 46. 7% while sales growth rate was up by only 14. 3%. The balancing factors have to re-evaluated in order to deduce whether the break-even is ach ieved or not.This can be done by adding up the values in the %change column – assigning a positive to sales/revenue increases and a negative to cost heads. b. Which variables are most critical to the success of the beta project? (2 points) There are two methods of judging the critical factors to the success of this project: one would be to compare the critical values of the different variables while the other would be find the variances of each of the percentage changes in the values of different variables.Following the first method, it would lead to the conclusion that the gross profit margin is the most critical factor having a 28% critical value. Following the second method, the operating expenses would be the most critical variable. The justification for each of the methods stands valid in their grounds. However, for this project, it would be more suitable to state that the operating expenses is the most critical factor followed closely by the base sales for 2008 and then the gross profit margin. c. Why would it be helpful to know which variables are most critical to the success of the project?(5 points) Projects often fail when managers and controllers spend time and money on processes covering variables that are of little importance. Understanding the critical factors of a project helps project managers to focus on the processes that are relatively more important and achieve targets that would satisfy the critical limits of the variables. Essentially speaking, critical variables should be known in order to make decisions as the project progresses and decide where and when to make changes that would affect the critical variables (and how will it affect the

Reflection Paper for Philosophy of Religion Essay

Religion has been as part of society as far as its beginnings. All ancient human civilization had some sort of belief in a God or the transcendent. Beliefs have always been an issue within any human society. The belief of the transcendent gives humans a chance or hope for eternal happiness for people who abide their beliefs. But through out history, different religions and beliefs emerged which gives rise to the inconsistency. There are numerous differences between religions: one versus many gods, personal versus impersonal gods, personal survival of believers versus no survival of believers, moral codes, religious life, etc. As observable in human history, though religions often offer some sort heaven it often paradoxically entails conflicts and controversies. And despite the fact that religions supposedly gives people a sense of what’s right or wrong, atrocities have been committed in the name of religion; the hundred years war, the inquisition, jihad, ethnical cleansings etc†¦ And amidst the variety of beliefs that populate contemporary society, one cannot help to think how to take in hand the overabundance of truths that sometimes overlaps, dissent, and eventually oppose each other. There are three stances one can take. First is to (1) treat all religions as valid and true (pluralism). Another way is to (2) view beliefs in way that some are right and some are wrong (exclusivism). Finally, one can also (3) think about all religions as false (atheism). Let me take into consideration the third stance first. By arguing that all religious beliefs are false, it also means arguing that God or any form of the transcendent does not exist. And by arguing this, means rejecting all of the theistic theses that were formulated in the history of man. And this is the part where the catholic philosopher’s shear my head off, as countless theologians in history were also philosophers. With atheism in hand, the question God’s Being is also raised. Paul Tillich argues that God is Being, where â€Å"Being† represented the ultimate reality that underlies all existence, whether natural or supernatural. In fact, Being doesn’t necessarily pertain to a personal God at all. Tillich wanted  to make Being stand for the ultimate concern of all humans, conceived in the broadest sense. Furthermore, any attempt to define what Being is, by giving it the name of a particular God, fails to capture the true Being. Tillich thinks that all particular conceptions of Being that we are familiar with in the West constitute idolatry. When we give religious symbols too much importance, then we have fallen into mere idolatry. It might be plausibly argued that a religion must possess religious symbols and rituals to qualify as a religion-but, if this is true, then all religions must in a way be idolatrous. This is quite a strong and ridiculous thing to claim. But on the other hand it can also be claimed that atheism is really theism because it possesses infinite concern. The unknowable â€Å"God behind God† symbols mediate our relationship with God. God is beyond existence and non-existence. This leads us to the more theistic approach on the variety of human belief. First is the idea of pluralism which is spearheaded by John Hick. Hick’s theory holds that all religions are expressions of the same ultimate reality. However, how is it possible for all religions to be true images of the same ultimate reality? They can’t all be correct because this would be a violation of the law of non-contradiction (the thesis that something cannot possess a property and lack it at the same time and in the same way). For example, to argue that God is personal from my religion’s perspective and not personal from another religion’s perspective and thus avoid the violation of the law of non-contradiction is to say that God is not ultimately personal. Since it has just been accepted that some other religion has an equally valid view of God which contradicts my own religion’s view, this conclusion once again dents the justification for believing in the specifi c theories of God by my particular religion (in fact, many religions will reject this compromise for this very reason; namely, because the religion’s views are not really believed to be entirely true). At one point, Hick argues that the ultimate reality of God has no properties or attributes by itself, but only in relation to believers. So the properties we attribute to God are relational properties, which don’t exist or pertain to God if we don’t exist to assign those properties to God. Yet, this theory still implies that each religion’s view of that ultimate reality is not completely true since there exist other, contradictory and  equally correct relative views of God. And this undermines the importance of that particular religion’s beliefs. Also, a being that has no properties or attributes in itself seems incoherent, because, once again, the law of non-contradiction does not seem to apply to that being in the absence of any believers. Besides, a being that has no properties is almost identical to nothing. On the other hand, one can also take the path of an Exclusivist. Exclusivism states that one’s own religion is true, all the other are false. Which yet again sets it in conflict with every other thought out there: Which religion is the true religion? For the exclusivist, salvation comes from faith in that one true religion. But, there are exceptions that present several problems. Examples of these are people who didn’t hear the religion’s message. Also there are those virtuous and good people who did hear the religion’s message but rejected it. One way to solve these problems is to accept a view that still accepts that there is one true religion (and all the others are false), but who is included in that religion is increased to include all of the people covered in the aforementioned examples (â€Å"Inclusivism†). In addition, the same difficulty mentioned above, of determining which religion is the one true religion, this theory also suffers in that it seems to undermine the importance of being one of the people who essentially hears and follows the message of that one religion. Since merely being a virtuous person is enough to get into heaven, it no longer seems to be all that important to hear any religion’s message, and this weakens the motivation for following that religion. Another way is to deal with the variety of belief is to treat them as some are more right than others. Although all beliefs may hold some truth in them as what a pluralist might say, there is also the notion of some beliefs holding more sensible, plausible, and appealing aspects than others. Treating beliefs that some are more right than others will impose some sort of hierarchy among them. Being so, there is no sense to take what is less that the optimal path or any belief other than the belief on the top of the ladder. This might be attributed to a sense of rationality or a mental faculty for deciding what people should hold is true or a sense of epistemic  duty. Since belief holds such importance in a person’s personal and social life as was mentioned earlier, it cannot be helped to seek verification of what is true and what is not. Then again, an argument can arise from here asking what basis of rightness or wrongness of a certain belief is in the aforementioned hierarchy. Certainly, we cannot take an objective perspective here due to nature of the subject as argued in numerable articles about belief (belief cannot be grounded empirically). This then leaves me with no means to measure the rightness or wrongness of a certain belief. If this is so, it can be said then that the matter of belief can be left to the personal opinions and values of the believer, or simply put, belief is completely subjective. Just like understanding any other major term in philosophy of religion, completely understanding the existence of variety of human beliefs in this case would be as hard as pinning gelatin to a wall. Just as one thinks one has held the whole thing in one point, the rest of it slips away and falls apart. And in the end we are back to ground zero, stuck in a standstill conflict of being either an atheist, pluralist or an exclusivist; a sort of conflict between two extremes of anarchy and tyranny. Pluralism in its purest form can lead to anarchy of beliefs due to the equal treatments of all beliefs as in way true and valid. Exclusivism taken to the extreme may is tyranny in sense that only one or some beliefs are the plausible ones to take. And the supposedly safe answer of atheism which every other theistic argument rebukes. Alluding to the idea of the other that cannot be consumed by the I in Hegelian manner of the thesis and the anti-thesis having a compromise in the form of the synthesis, religions can neither be equalized by a common denominator nor taken separately and treated with bias. Hick, Plantinga, and Tillich tried nobly to create stable grounds by creating bases for beliefs by conceptualizing the whole idea of religions and beliefs. Yet with the contradictions to every argument presented, loose or dead ends appear due to the infinitely vast reality (and paradoxically ambiguous) of religious beliefs, thus one cannot firmly hold his belief in every ground. Therefore, it can be said that there is no safe answer. A risk then of making a mistake is not avoidable just as every evil is inevitable in the world. And just as uncertain the issue of human belief is as every  philosophical paradox goes, it is left in the riddle of choice.