Friday, February 14, 2020
IPv6 Essay Example | Topics and Well Written Essays - 500 words
IPv6 - Essay Example The 32-bit addressing system employs packet switching to facilitate communication. IPv4 can thus be treated as an upgrade of IPV4, to improve the IP protocol system. There are a number of significant dereferences between the two protocols that will be essential in determining one’s choice for usage. Discussed below are the major differences: Address length- IPv4 is a 32 bit address while IPv6 is a 128 bit. This is the basic difference observable at a glance. These DNS names differ by a wide margin if compared by the number of addresses each can yield. In fact, to completely cover the IPv6 address, it is written in hexadecimal numbers as compared to IPv4 written in dotted decimal numbers. This forms of representation are all interpreted in form of binary numbers by the computers (Huitema, 1996). Packet header-generally, packet headers are always affixed at the start of Internet protocol addresses. It normally contains the address of the destination of a given packet. IPv4 has got packet headers only. This differs from IPv6 that has the header, although with more advanced functionalities. The header of IPv4 is 20 bits as compared to the 40 bits of IPv6. The advancement in the header allows addition of extension headers, a functionality not provided for by IPv4 computers (Huitema, 1996). Address resolution- the process of address resolution involves mapping of various IP addresses to the MAC address or rather, a link address. IPv4 employs the RFC 826. This is an Ethernet address resolution protocol. This resolution protocol has over the years exposed users to cyber threats because the protocol is within the link layer. IPv6 on the other hand makes use of Neighbor discovery Address resolution. Its protection is secured because the IPSec is employed to secure the connection in tunnel or transport mode (Amoss, & Minoli, 2008). Configuration- users of IPv4 have to ensure all configurations are done prior to internet usage. The IP address and routes
Saturday, February 1, 2020
Quality Management - Group Work Research Paper Example | Topics and Well Written Essays - 750 words
Quality Management - Group Work - Research Paper Example It begins from the initial preparation, through the group process up to compilation of the final paper. I highly commend the timeliness of the group. The group met immediately after its formation giving it enough time to tackle the tasks it had before it. I can therefore describe the group members as very organized individuals who acknowledge the importance of time management. Without time management, a group is likely to suffer from a last-minute rush (John, 2005). During the preparation, some group members drafted a schedule which would be used to track developments in the group-work. The schedule led to some conflicts since some group members had not been consulted. There were some communication barriers which arose due to a heated debate regarding the schedule. The former draft had been drawn with the assumption that the personal schedules of individuals were almost similar. Though schedules are important in projects, Accountability through 360 ° feedback is important (Stephen, 1999). This model of feedback was used in formation of the final schedule which was more agreeable. I was very pleased by the problem solving techniques used by the group. This included open communication and consultation before making decision that ultimately affect the whole group (Isa, 2012). The idea to formulate a schedule to manage the operations of the group was a brilliant idea. I suggested a SWOT analysis on group members’ personal traits. This was unanimously agreed on. A SWOT analysis is important in determining the overall strengths and weaknesses of a group (Howard, 2000). It is also important in understanding the character traits of group members in order to know which tasks to assign to a member. After the SWOT analysis was completed, the group members became more familiar with their fellow members. This improves group dynamics (John, 2010). The actual group process began by identification of the task to be undertaken. The group decided to work on formulating and implementing a quality management strategy. After thorough consultations between members, the group members agreed to meet on a later day with names of organization they believe needed a change in their management systems. On the immediately following meeting, one group member proposed the University of Western Sydney as the organization. The group agreed to make the management strategy of UWS the subject matter. I believe availability of data and the existence of a clear problem statement were the main reasons why this organization was selected (Comite Euro-International du Beton, 1998). The team formed an objective of its own in order to avoid drifting from the course objectives. The object of the team was similar to the title of the project. Although the title of the project was manipulated severally, I found this to be vital since it aligned the objectives of the group, those of the project itself and those of the course. The title of the research project became: â€Å"Qual ity Management Strategy for an improved system of Teaching and Learning: University of West Sydney†. Member of the group were asked to perform an overview of the university’s history and management system. This was important to increase familiarity of the members with the project at hand (Julia, 2012). One of the group members proposed that a PESTLE analysis would be best in performing a background check. This is one of the most efficient ways of understanding a management system of any organization (Jay, 2003). After the members became
Friday, January 24, 2020
Mexican Lives by Judith Adler Hellman Essay -- Mexican Lives Judith Ad
Mexican Lives by Judith Adler Hellman      The author of Mexican Lives, Judith Adler Hellman, grapples with the United States’ economic relationship with their neighbors to the south, Mexico. It also considers, through many interviews, the affairs of one nation. It is a work held to high esteem by many critics, who view this work as an essential part in truly understanding and capturing Mexico’s history. In Mexican Lives, Hellman presents us with a cast from all walks of life. This enables a reader to get more than one perspective, which tends to be bias. It also gives a more inclusive view of the nation of Mexico as a whole. Dealing with rebel activity, free trade, assassinations and their transition into the modern age, it justly captures a Mexico in its true light. All walks of life are presented, from prevailing businessmen of white-collar status, to those of the working class and labor industry, as well as individuals who deal in the black market of smuggling illegal immigrants across the border into the U.S. Hellman’s work explores the subject of Mexico’s economic situation in the 1990s. NAFTA (North American Free Trade Agreement) closely tied the United States and Mexico during this period, as well as similar policies such as GATT (General Agreement on Tariffs and Trade) that were also created. These issues pertaining to economic policies between the two nations, Mexico and the United States are seen highlighted throughout her work. Hellman opens with three individuals at three different times. The reader is first introduced to Lupe Gonzalez at 3 A.M., whose story is a harsh reality for many. She lives in the vecindad of San Miguel Iztacalco where â€Å"eighteen families in eighteen single-room dwellings share a single water tap in the courtyard†¦Ã¢â‚¬ (pg.15) This is the daily life for many other Mexican families, as well as families from all over Latin America. She lives in a single room home with six children and her second husband. The reason for the set time is due to a schedule that each family must abide by, in order to obtain a simple necessity of life, water for their â€Å"drinking, bathing, cooking, and household cleaning.†(pg.15) With this the reader witnesses how there isn’t even enough water for all members of the community and city for constant usage. They share three beds for all eight family members and make considerably less then minimum... ...ople extort from others. It’s a way of life†¦ The NAFTA treaty isn’t meant to rescue people like us, it’s meant to help the rich" (pg. 157) Later, the reader learns that Maria was driven out of business by competators after NAFTA took effect. Mexican Lives is a rare piece of literature that accounts for the human struggle of an underdeveloped nation, which is kept impoverished in order to create wealth for that of another nation, the United States. The reader is shown that the act of globalization and inclusion in the world’s economies, more directly the United States, is not always beneficial to all parties involved. The data and interviews, which Hellman has put forth for her readers, contain some aspect of negativity that has impacted their lives by their nation’s choice to intertwine their economy with that of the United States. Therefore it can only be concluded that the entering into world markets, that of Mexico into the United States, does not always bring on positive outcomes. Thus, one sees that Mexico has become this wasteland of economic excrement; as a result it has become inherently reliant on the United States. Work Cited: Judith A. Hellman: Mexican Lives.
Thursday, January 16, 2020
Conditional Love †How to Love Essay
Do you feel the sting of being rejected? Do your closest friends and even family push you away or mistreat you? I think that every emotionally healthy person wants to love and to be loved. We want people to love us as we are. We want to feel accepted no matter what we may say or do. When we make a mistake, we want to be forgiven and we don’t want to experience rejection. We want to be loved unconditionally. A problem comes though when we do not reciprocate unconditional love. For example, there will never be real love expressed between two people if both individuals are seeking to have their needs met. How can two people make a relationship work if both define love as, â€Å"if you love me then you will do what I want†? There is only one person who can truly love unconditionally. His name is Jesus. See, God is perfect and demands perfection from us. But, we all have fallen short of living a perfect life and that is called sin. The penalty for sin is death. But, this penalty is too great for us to pay! The Bible says that God demonstrated themeaning of love to us in this that while we were yet sinners, Christ died for us. Jesus laid down His life for us as the ultimate act of unconditional love. He accepts us for who we are, for what we have done, and even for what we have neglected to do. But, now He is asking us to accept Him unconditionally as well. He wants us to accept His love by giving to Him our heart, mind, soul, and strength. He wants all of us. When we give ourselves over completely to Jesus then we are â€Å"fully known, fully accepted, fully loved, fully valued, and fully celebrated.†Jesus will never leave you, quit on you, belittle you, or even condemn you. Did you know that the Bible says that Jesus did not come into the world to condemn the world but to save the world? He came to show you what love is. Once we experience His love, we must step forward quickly to embrace it. The Bible provides an excellent description of unconditional love and gives us a pattern to follow. What is real love? Here is an example, â€Å"Love is patient, love is kind and is not jealous; love does not brag and is not arrogant, †¦ Love rejoices with the truth. Love believes and endures all things. Love never fails.†The longing of your heart to be loved unconditionally can be fulfilled only through Jesus Christ. You must admit your sin, believe in Jesus, and follow His ways. If you do, you will experience unconditional love. Once you have experienced love unconditionally, you are then able to know how to love as well.
Wednesday, January 8, 2020
French Number Expressions - Confusing Pairs
There are several confusing pairs and difficult expressions related to French numbers. Floor System Differences The numbering system of the floors in a building may be difficult for American English speakers.                    American English    British English Rez-de-chaussà ©e    First floor            Ground floor Premier à ©tage       Second floor        First floor Deuxià ¨me à ©tage     Third floor           Second floor The meaning of premier changes depending on the preposition that precedes it. Au premier       At/On the first Au premier à ©tage  On the second floor  On the first floor En premier       The first in a sequence En premier lieu   In the first place, Firstly De premier/premià ¨re (prix, qualità ©) The top (prize) or best (quality) Two Words for the Same Number in French There are two French words for the English ordinal number second (2nd): second and deuxià ¨me. They are essentially interchangeable, but there is a general, not always followed guideline: Second is often used when something is the second in a series of only two things. Deuxià ¨me tends to be used when theres a third, fourth, etc. Following this guideline allows you to add some interesting nuances to your words. La seconde guerre mondiale  World War II (the second and last) La deuxià ¨me guerre mondiale  World War II (the second of how many?) There are two words for third and fourth  one for the ordinal number and another for the fraction troisià ¨me  third (in a series) un tiers   one third quatrià ¨me  fourth (in a series) un quart  one fourth
Tuesday, December 31, 2019
Why Does Radioactive Decay Occur
Radioactive decay a the spontaneous process through which an unstable atomic nucleus breaks into smaller, more stable fragments. Have you ever wondered why some nuclei decay while others dont? Its basically a matter of thermodynamics. Every atom seeks to be as stable as possible. In the case of radioactive decay, instability occurs when there is an imbalance in the number of protons and neutrons in the atomic nucleus. Basically, there is too much energy inside the nucleus to hold all the nucleons together. The status of the electrons of an atom doesnt matter for decay, although they, too, have their own way of finding stability. If the nucleus of an atom is unstable, eventually it will break apart to lose at least some of the particles that make it unstable. The original nucleus is called the parent, while the resulting nucleus or nuclei are called the daughter or daughters. The daughters might still be radioactive, eventually breaking into more parts, or they might be stable. Three Types of Radioactive Decay There are three forms of radioactive decay: which of these an atomic nucleus undergoes depends on the nature of the internal instability. Some isotopes can decay via more than one pathway. Alpha Decay In alpha decay, the nucleus ejects an alpha particle, which is essentially a helium nucleus (two protons and two neutrons), decreasing the atomic number of the parent by two and the mass number by four. Beta Decay In beta decay, a stream of electrons, called beta particles, are ejected from the parent, and a neutron in the nucleus is converted into a proton. The mass number of the new nucleus is the same, but the atomic number increases by one. Gamma Decay In gamma decay, the atomic nucleus releases excess energy in the form of high-energy photons (electromagnetic radiation). The atomic number and mass number remain the same, but the resulting nucleus assumes a more stable energy state. Radioactive vs. Stable A radioactive isotope is one that undergoes radioactive decay. The term stable is more ambiguous, as it applies to elements that dont break apart, for practical purposes, over a long span of time. This means stable isotopes include those that never break, like protium (consists of one proton, so theres nothing left to lose), and radioactive isotopes, like tellurium -128, which has a half-life of 7.7 x 1024 years. Radioisotopes with a short half-life are called unstable radioisotopes. Some Stable Isotopes Have More Neutrons Than Protons You might assume that a nucleus in stable configuration would have the same number of protons as neutrons. For many lighter elements, this is true. For example, carbon is commonly found with three configurations of protons and neutrons, called isotopes. The number of protons does not change, as this determines the element, but the number of neutrons does: Carbon-12 has six protons and six neutrons and is stable; carbon-13 also has six protons, but it has seven neutrons; carbon-13 is also stable. However, carbon-14, with six protons and eight neutrons, is unstable or radioactive. The number of neutrons for a carbon-14 nucleus is too high for the strong attractive force to hold it together indefinitely. But, as you move to atoms that contain more protons, isotopes are increasingly stable with an excess of neutrons. This is because the nucleons (protons and neutrons) arent fixed in place in the nucleus, but move around, and the protons repel each other because they all carry a positive electrical charge. The neutrons of this larger nucleus act to insulate the protons from the effects of each other. The N:Z Ratio and Magic Numbers The ratio of neutrons to protons, or N:Z ratio, is the primary factor that determines whether or not an atomic nucleus is stable. Lighter elements (Z 20) prefer to have the same number of protons and neutrons or N:Z 1. Heavier elements (Z 20 to 83) prefer an N:Z ratio of 1.5 because more neutrons are needed to insulate against the repulsive force between the protons. There are also what are called magic numbers, which are numbers of nucleons (either protons or neutrons) that are especially stable. If both the number of protons and neutrons have these values, the situation is termed double magic numbers. You can think of this as being the nucleus equivalent to the octet rule governing electron shell stability. The magic numbers are slightly different for protons and neutrons: Protons: 2, 8, 20, 28, 50, 82, 114Neutrons: 2, 8, 20, 28, 50, 82, 126, 184 To further complicate stability, there are more stable isotopes with even-to-even Z:N (162 isotopes) than even-to-odd (53 isotopes), than odd-to-even (50) than odd-to-odd values (4). Randomness and Radioactive Decay One final note: Whether any one nucleus undergoes decay or not is a completely random event. The half-life of an isotope is the best prediction for a sufficiently large sample of the elements. It cant be used to make any sort of prediction on the behavior of one nucleus or a few nuclei. Can you pass a quiz about radioactivity?
Monday, December 23, 2019
The Phillips Curve The Epitome Of Antiquity Essay
Michael Liotti and Brian Levine Professor Predescu MA 235-H01 Final Project The Phillips Curve: The Epitome of Antiquity Abstract In this paper, we will present a model discussed at length in Todorova (2012) representing the Phillips curve, the textbook macroeconomic relationship posting a negative relationship between unemployment and inflation. Specifically, the model posits that when unemployed workers are scarce, employers must compete with one another for the remaining, qualified workers by bidding wages upward, which translates into higher costs, which combined with stronger consumption by a more employed population, generates higher prices. To the contrary, when unemployment is high, perhaps a result of an adverse shock to the economy, demand for labor falls, as does consumption and investment spending, which reduces overall economic activity and tends to reduce prices. The Phillips curve recently has come under scrutiny in the literature and among Federal Reserve policymakers. Many current members of the Federal Open Market Committee (FOMC) cite the Phillips curve as their justification for continuing to raise interest rates, but there are valid questions as to whether this relationship fits the data. Using Todorova’s model, we find via computations and numerical simulations that the behavior of the inflation rate is in all cases oscillatory in nature – calling into question both the wisdom of the textbook Phillips curve proposed by Olivier Blanchard and the
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