Fire Department Safety Officer Week 3 - building construction Essay

Fire Department Safety Officer Week 3 - building construction - Essay Example Masonry comprise of brickwork and blockwork. Extreme heat causes masonry to expand and crack. However, this would take considerable time. Bricks are toughened by conflagration, and therefore, are able to withstand fire longer. Concrete is often toughened with steel. If the reinforcement is superficial, the extension of the steel causes the concrete to expand. The expansion causes fissures. Timber is the adversely affected by conflagration. The ignition point of timber is lower than other elements. Exposure to heat and oxygen results in incineration. Combustion starts with the charring of the surface, and thereafter, the structural integrity is compromised. Prolonged fire burns the timber to ashes. Metal is extensively affected by fire. Heat elevates the kinetic energy of the atomic configuration of the metal. The structure weakens and looses strength. At 500 degrees, it may loose 50% of its strength. Further, steel may melt slightly and warp slightly in adverse heat (Dodson,

CCNA Basic (Final Assignment) Essay Example | Topics and Well Written Essays - 1000 words

CCNA Basic (Final Assignment) - Essay Example 4. Define redistribution filters, if desired. 5. Enable redistribution, if you defined redistribution filters. 6. Modify default global and port parameters as required. 7. Modify OSPF standard compliance, if desired To enable OSPF enter enable ospf and respond to the prompts: OSPF Config>enable ospf Estimated # external routes[0] 200 Estimated # OSPF routers [0] 60 OSPF Config>set area Area number [0.0.0.0] 0.0.0.0 Authentication Type (0:NONE, 1:SIMPLE, 2:CRYPTOGRAPHIC) [0] 1 Is this a stub area [No]: OSPF Config>set interface Interface IP address [0.0.0.0] 172.16.100.030 Attaches to area [0.0.0.0] 0.0.0.0 Retransmission Interval (in seconds) [5] Transmission Delay (in seconds) [1] Router Priority [1] Hello Interval (in seconds) [10] Dead Router Interval (in seconds) [40] Type Of Service 0 cost [1] 5 Authentication Key Retype Auth. Key Message Digest Key ID [0] MD5 Key Retype MD5 Key Override the default OSPF interface-type [No]: y OSPF interface-type override (1=broadcast, 3=NBMA, 5=point-to-multipoint) [0] 3 Poll Interval [120] Forward multicast datagrams [Yes]: Forward as data-link unicasts [No]: OSPF Config>set virtual-link Virtual endpoint (Router ID) [0.0.0.0] 10.10.10.1 Link's transit area [0.0.0.1] Retransmission Interval (in seconds) [10] Transmission Delay (in seconds) [5] Hello Interval (in seconds) [30] Dead Router Interval (in seconds) [180] Authentication Key Message Digest Key ID [0] Message Digest Key Retype Message Digest Key (c) Configure manual summarization for 10.201.1.0/24, on serial 2, using EIGRP - using an example of one default route hostname branch1 ! interface Serial2 ip address 10.201.1.0 255.255.255.0 ... router eigrp 10 redistribute static metric 56 100 255 1 255 network 10.201.0.0 ! ip classless ip route 0.0.0.0 0.0.0.0...This will allow you to have 32 subnets (25). After using the five bits for subnetting, you are left with 11 bits for host addresses. Therefore, this will allow each subnet to have 2048 host addresses (211), 2046 of which could be assigned to devices. (d) Configure DHCP using a pool called 'ISP' containing 10.10.0.0/16. Include the default gateway of 10.10.0.01 and a DNS server at 10.10.0.5. Exclude the range of IP address from 10.10.0.1 to 10.10.0.15 Edit the /etc/dhcpd.conf file to configure DHCP service. In our setup, the server has IP address 10.0.0.1 and provides IP addresses up to 253 clients. Configure /etc/dhcpd.conf according to your environment:

Ethnic and Racial Group overview Essay Example for Free

Ethnic and Racial Group overview Essay While I have always believed myself to be reasonably educated about racial diversity, and non-prejudice against those who come from different ethnic backgrounds than my own, this course has taught me that there is much more to the history and reality of Americas struggle to overcome the all too real problem that is prejudice and discrimination. I have learned much about my own background and history that I was not previously aware of as well. The history of Prejudice and discrimination in America dates as far back as to the days of slavery. While to most this is a well-known fact, there are a few facts about my own ethnic history that were not well-known to me until I participated in this course. The fact that stands out the most is that German immigrants (such as my own grandparents) suffered a reality of segregation in schools and language barriers, not unlike that of today’s Mexican Americans. German Americans struggled to establish bi-lingual schools because they were a growing population in America, and the need was apparent. Knowing this opens up a whole new perspective of my understanding of just how equal we all really are. Because trends in immigration have grown steadily and will continue to grow well into the future, by the year 2050, the U. S. population will experience a culture of diversity so elaborate, and so completely wide spread; resulting in America having no choice but to unite, or suffer from mass self-destruction of the worst kind. The challenges of such a diverse America will be apparent in many ways, and there will be some of the same issues of discrimination and prejudice that have always been. With all of the different cultures coming together, there will be inevitable language barriers, which will result in a continued issue of segregation among children, and the added challenge of providing them with equal educational opportunities. In the same way that children have to face the challenges of diversity, so do the adults who will face discrimination and possible insufficient opportunity to move forward based on their race. On the other hand, when faced with such diversity, America as a whole will be forced to accept change, and perhaps finally overcome the issues that it has been faced with for so long. The opportunity will rise, with the variety of diversity, to become educated about those who are around us. Because there will be nothing else to do but find a way to work together, or to fail as nation, I think that the way that we all see one another is going to change significantly. The idea that others are inferior in any way to any other individual will begin to fade, because with so much diversity all around, there will not be a majority, nor a minority. Perhaps equality in racial group numbers will finally be the key to unlock the door to a prejudice-free America.

Catholic Rosary Practical And Pious Religion Essay

Catholic Rosary Practical And Pious Religion Essay Introduction Throughout history numerous devices have been created and used for the purpose of counting. Within the field of mathematics the abacus and its beads was of great importance because of its ability to maintain a numerical tally. Religions have since adapted this method to items more applicable to the faith due to the repetition of prayers. For example within Islam, beads are used to count the ninety nine names of Allah, and Buddhists also use beads to recite 1,000s of mantras.  [1]  However, beads are a merely a compliment to the ritual it is used in. A religious sect within Christianity have not only used beads to count but termed the object the same name as the ritual practice it is used in. General Description Within the Christian faith, Catholics use a rosary as a means of devotion to Mary, who is known as the Mother of Jesus.  [2]  The word rosary can be used within two contexts: a physical set of beads and the ritual of devotion. The beads are used as a method to track the prayers completed during the practice. The rosary when referring to the material object is a string composed of five sets of ten beads, each separated by one large bead respectively.  [3]  The string is held together with a circular image, which is similar to that of a necklace. The image has two large and three smaller beads along with a pendant attached  [4]  (Appendix A). Rosaries come in all shapes and sizes, in various colours and can be made from anything from wood to plastic. The term rosary, when referred to in the context of the ritual, consists of the repetition of three main prayers along with the statement of beliefs in the beginning.  [5]  This practice can be completed by anyone, at any t ime, regardless of whether in a group or praying by ones self. The rosary can be viewed as a non-discriminatory practice wherein people from all faiths can partake in it. It can also be said in any location, but preferably in a Catholic place of worship, the church. Technical Description The descriptions mentioned above are but an outline for what the physical rosary is, as well as the Catholic practice of the rosary. Further details will now be given in order to develop a better understanding of the rosary as exemplified within both of its contexts. In terms of the physical object, the pendant attached to the beads is better known as a crucifix, a term Catholics use symbolizing an article in the form of a cross depicting Jesus death  [6]  . In addition the circular image is one of Mary, it joins the five sets of ten beads to the separated five other beads and crucifix. This image embodies the fact that the rosary as devotion, was first offered to Mary. The traditional material used to manufacture rosaries is olive wood, which is said to have been the wood of the cross that Jesus was hung on.  [7]  However, due to modern adaptations rosaries are now are made from various materials. The Catholic practice of the rosary begins with the sign of the cross. This symbolic custom is one that commences every ritual within the Catholic faith.  [8]  The action occurring is simply using ones hands to touch the forehead, then the heart, and each shoulder, left to right respectively in order to make a cross. After completing this action, practitioners complete a set of preliminary prayers starting with the Catholic prayer titled the Apostles Creed (Appendix B). The words contained within this prayer express the faith of the practitioner and the main system of beliefs for Catholics.  [9]  This would then lead to the praying of the Our Father (Appendix B), followed by three Hail Marys (Appendix B) and ending with a Glory Be to the Father (Appendix B). This would mark the ending of the preliminary portion and lead to a meditation which changed depending on the day the rosary was said. After this begins another Our Father, but this time with ten Hail Marys, followed by y et another Glory Be to the Father. This sequence of prayers starting with the meditation and ending with the Glory Be to the Father is referred to as one decade.  [10]  There are a total of five decades within one rosary, but four different versions of the rosary. As previously mentioned, the meditations of the rosary change depending on the day of the week it is said. There are four different versions referred to by Catholics as mysteries, including: Joyful (Monday and Saturday), Sorrowful (Tuesday and Friday), Glorious (Wednesday and Sunday) and Luminous (Thursday)  [11]  (Appendix B). Each mystery has five meditations on specific events pertaining to the theme. Each of these five meditations is reflected on while praying the rosary. Location within the Religion Within Catholicism, the rosary is considered to be a symbolic item as well as an informal practice. The first appearance of the physical set of beads is early within the religion and can be seen in various images depicting early practitioners. The ritual itself is viewed as secondary means of devotion (primary being sacraments and liturgy) that can be completed at ones own will.  [12]  Though the act of praying the rosary is not formal in the sense that it is not a requirement, it serves as a meditative method of prayer for those seeking a deeper spiritual faith. Historical Information and ties to Doctrines The praying of the rosary traces its origins to the Book of Psalms contained within the Bible. Catholics refer to Psalms as songs of praise to God.  [13]  During the early days of the Catholicism, many lay people wanted to partake in the praying of the Psalms but could not commit all 150 to memory, thus a substitute was created. There is evidence in the early sixteenth century of a book titled the Chiropsalterium, which instructed practitioners to use their hands as a mnemonic device when praying.  [14]  This also incorporated 150 repetitions of the Our Fathers as substitutions for the psalms. The Our Father is said to be the most perfect of all prayers, since it was composed for our needs by our Lord himself as stated by John S. Johnson.  [15]  He goes on further to state that within the Gospel of Matthew in the Catholic Bible, Jesus declares that this is the method in which one should pray to God.  [16]  Catholics today take these words with a few alterations and co nsider it the Lords Prayer. These 150 repetitions were later divided into three sets of 50, a fact attesting to the rosarys adaptability.  [17]  During this time, the popularity of the famous prayer, the Hail Mary grew, and was added as an alternative to some of the many Our Fathers owing to its simplicity. The initial wording of the Hail Mary comes from the Gospel of Luke when Mary is first greeted by the angel Gabriel along with the greeting Elizabeth gives to her cousin Mary.  [18]  The rest of the text was contributed to various other leaders within the faith to create the prayer that is commonly used today. With the majority of the rosary as repetitions of the Hail Mary, it was then associated with devotion to Mary. This is where the term rosary comes from. The Latin word rosarium, meaning rose garden was evident in early images of Mary.  [19]  The word rosary simply stemmed from there. The addition of the Glory Be to the Father occurred over time by various leaders as the ritual grew in accept ance throughout the faith. This prayer is shorter than the other two but is filled with praise and worship type phrases. Deep roots are found pertaining to the theme of the Holy Trinity, denoting the expression of how three persons exist in one God.  [20]   As Catholicism grew in numbers, so did the need for meditations pertaining to Jesus life. It was out of convenience that each of the three sets of 50 was then further cut down to groups of 10, with each mystery having five important events relating to a respective theme.  [21]  It is St. Dominic, who during the fifteenth century, is attributed to the founding of what is now referred to as the Rosary. According to tradition, Mary is said to have appeared to him and told him to spread the word contained within the Psalter.  [22]  This then formalized to the three mysteries with five decades in each. In 2002, the fourth mystery was added by the Pope completing what is now known as the Catholic Rosary.  [23]   Analysis Praying by hand distinguished the Catholic rosary from other forms of popular devotion. Even with the absence of the string of beads, ones ten fingers could easily serve as a counter and reminder that when meditating the whole body and mind should be focused on the mysteries. The essence behind repetition is to ingrain the message behind the words into ones mind in order to make application easier. Though the practice of the rosary appears repetitive by nature, it is important to look at the big picture. The ritual is said to be a method of prayer offered to Mary. Why then are the mysteries pertaining to the life of Jesus? One might answer that the Christianity is rooted in Jesus, thus all element must relate to him. Mary is viewed as a means to Jesus and her importance within the rosary has decreased significantly since its initial development.  [24]   Another issue to be raised is the fact that the Catholic Church prides itself on its traditions. The roots of the Rosary relate to The 150 Psalms contained within the Bible, yet the modern rosary appears to have no relation to that whatsoever. The answer to this can simply be attributed to the fact that the rosary is an informal practice and has adapted through time.  [25]  The mysteries of the rosary play a larger role when compared to the Psalms. Conclusion Though the history of beads serves as a useful method of counting, Catholicism has adapted its utility into a practice and object that provide far greater service to practitioners within the faith. The rosary as discussed earlier plays a vital role in methods of devotion to both Jesus and Mary. The physical beads of the rosary serve as a practical counter during prayers. The actual custom of praying the rosary is completed in order to build a stronger relationship with God or to be pious. Appendix Ahttp://upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Rosary.svg/424px-Rosary.svg.png Source: Microsoft ClipArt Appendix B Apostles Creed I believe in God the Father, Almighty, Creator of heaven and earth: And in Jesus Christ, his only begotten Son, our Lord: Who was conceived by the Holy Spirit, born of the Virgin Mary: Suffered under Pontius Pilate; was crucified, dead and buried: He descended into hell: The third day he rose again from the dead: He ascended into heaven, and sits at the right hand of God the Father Almighty: From thence he shall come to judge the quick and the dead: I believe in the Holy Spirit: I believe in the holy Catholic Church: the communion of saints, the forgiveness of sins: The resurrection of the body: And the life everlasting. Amen. Our Father Our Father, Who art in heaven Hallowed be Thy Name; Thy kingdom come, Thy will be done, on earth as it is in heaven. Give us this day our daily bread, and forgive us our trespasses, as we forgive those who trespass against us; and lead us not into temptation, but deliver us from evil. Amen. Hail Mary Hail Mary, full of grace. Our Lord is with thee. Blessed art thou among women, and blessed is the fruit of thy womb, Jesus. Holy Mary, Mother of God, pray for us sinners, now and at the hour of our death. Amen. Glory Be to the Father Glory be to the Father, and to the Son, and to the Holy Spirit. As it was in the beginning, is now, and ever shall be, world without end. Amen. Mysteries of the Rosary The Five Joyful Mysteries The Annunciation The Visitation The Birth of Our Lord The Presentation of Our Lord The Finding of Our Lord in the Temple The Five Sorrowful Mysteries The Agony in the Garden The Scourging at the Pillar The Crowning with Thorns The Carrying of the Cross The Crucifixion The Five Glorious Mysteries The Resurrection The Ascension The Coming of the Holy Spirit The Assumption of our Blessed Mother into Heaven The Coronation of our Blessed Mother The Five Luminous Mysteries   The Baptism in the Jordan The Wedding at Cana The Proclamation of the Kingdom The Transfiguration The Institution of the Eucharist

Understanding Multiple Sclerosis :: Health Medicine

Understanding Multiple Sclerosis Diagnosis of Multiple Sclerosis There are several diagnostic tests used to detect Multiple Sclerosis (referred to as MS). An MRI (multilple resonance imaging) can confirm a diagnosis by showing lesions and sites of inflammation in the brain. Although the presence of lesions is common in Multiple Sclerosis sufferers, the absence of lesions is not a sign that the disease is not active. An electroencephalogram (EEG) can isolate changes in brain waves when introduced to audio or visual stimuli. The Evoked Potential test measures the speed with which nerve impulses travel. Demyelination significantly reduces the speed of nerve signal transmission and can be detected with this test. Lumbar punctures and spinal taps are also used to test spinal fluids for the presence of certain immuno-proteins present in Multiple Sclerosis sufferers. Facts about Multiple Sclerosis Multiple sclerosis is an inflammatory and demyelinating disease of the central nervous system and is believed to be immune mediated. This debilitating disorder affects at least 350,000 people in the United States. The disease occurs in young adults with the mean age of onset of 30 years. Women make up 70% of the MS population. This gender preference remains unexplained. Clinical Features The symptoms of MS may be mild or severe, of short or long duration and may appear in various combinations, depending on the area of the nervous system affected. Complete or partial remission of symptoms, especially in the early stages of the disease occurs in approximately 70% of MS patients. The initial symptoms of MS are often blurred or double vision, red-green color distortion, or even blindness in one eye. However, visual problems tend to clear up in the later stages of MS. Inflammatory problems of the optic nerve may be diagnosed as retrobulbar or optic neuritis. MS patients will have an attack of optic neuritis at some time or other and it will be the first symptom of MS in approximately 15 percent. This has led to general recognition of optic neuritis as an early sign of MS, especially if test also reveals abnormalities in the patient's spinal fluid. Most MS patients experience muscle weakness in their extremities and difficulty with coordination and balance at some time during the course of the disease.

Debating the Connection Between Birds and Dinosaurs :: Exploratory Essays Research Papers

Debating the Connection Between Birds and Dinosaurs We live in a world, where every question must have an answer. If that question doesn’t have an answer, somebody is determined to find out what the answer is. One of those very questions is simply, did birds evolve from dinosaurs? Many scientists have theories. There is no definite answer. I will, however, give you information on some theories scientists have, as well as information on a new discovery that may very well be indeed what scientists around the world have been looking for. I will leave it up to you, to decide who you think is right. The idea that birds and reptiles are closely related is not a new one. Since Darwin, similarities between modern birds and reptiles started speculation that these groups had something in common. Then, in 1861, the first specimen of the famous Archaeopteryx ("ancient wing") was found in Bavaria. It seemed to be a mixture of bird-like and reptile-like characteristics. â€Å"For many, this creature was - and is - a powerful confirmation of large-scale evolutionary change (â€Å"Are birds feathered dinosaurs?†).† Since then more and more new discoveries have been found influencing the dino-bird theory. The most recent discovery was in Northern China, of a feathered covered dinosaur that may very well be the answer to this very important question. This discovery not only presents questions about the origins of birds but also about the life of dinosaurs. It reinforces the case for the theory that birds evolved from theropod dinosaurs, while hinting that many other dinosaurs may have had feathers to keep them warm. The fossil skeleton is estimated to be somewhere between 126–147 million years old (Henahan 2001). However, according to the original scientific article the age is debatable. â€Å"Certain elements suggest a Late Jurassic age; radiometric work from several sites near Sihetun has suggested conflicting dates of 124.6 million years ago or 147 million years ago. The age of these beds is a complex problem and it is likely that several ages are represented at different quarry sites (Ji et al 2001).† According to the article the fossil was discovered by a team of American and Chinese scientists in the Yixian Formation in the Liaoning Province, China. This is the first dinosaur to be discovered with its body covering unbroken. The fossil has been identified as a type of dromaeosaur. The discovery may cause trouble in the paleontology community, where a debate continues on the link between dinosaurs and birds.

A more personal essay about betrayal Essay

Over the past few years, I have gained much knowledge about betrayal. I have come to believe that it is close to the worst thing that people can do to each other (besides murder), and it’s something that happens more and more as one grows older. By definition, betrayal can mean to be unfaithful, to deliver something to an enemy by treachery, or to desert a person in the time of need. Obviously, this can tell a person a couple of things. First of all, betrayal is a broad â€Å"subject,† and secondly, it is downright malicious. The first example of betrayal that I have given is to be unfaithful. In my eyes, this is probably the worst form of betrayal. I think this because I have been cheated on and I know that the feeling one gets when he or she finds out about the affair is absolutely heart wrenching. At first, I went to pieces when I found out, but then I got over it and I forgave my boyfriend (at that time). Big mistake. He never stopped lying to me, and to this day he still does ,even though we aren’t together anymore. I guess I should have thought twice and listened to the popular saying â€Å"Once a cheater, always a cheater.† The next example that I choose to represent betrayal was to deliver something to an enemy by treachery. Many people have experienced this, but the largest upset was most likely when the Japanese bombed Pearl Harbor. The Japanese government was trying to side with the Germans during World War II. The Japanese told the United States that they would not do anything, but then they bombed us, leaving our country open for anything that could come our way from the Germans. I think that is betrayal because the Japanese lied to our country. Although, I guess things turned out for the better in the end; our economy went up slightly and the Japanese were avenged†¦twice. My last example of betrayal is to desert a person in the time of need. I believe that this instance is best depicted in â€Å"Hamlet,† a play by William Shakespeare. Prince Hamlet’s mother, uncle, and friends all desert him in his time of need, which was after his father’s death. This may sound quite confusing, but Claudius (Hamlet’s uncle) killed Hamlet’s father. Not even a  month after the father’s death, Claudius and Queen Gertrude (Hamlet’s mother) are joined in wedlock. Nobody thought that Hamlet was sane because of everything that had happened to him. His friend’s weren’t very true to him and his mother wouldn’t believe that Claudius killed his father. For those reasons, I feel that everyone betrayed Hamlet in the sense that they deserted him in his special time of need. As one can see, betrayal is a harshly wounding action. It can leave an imprint on a person’s heart for many years and it can also make them lose trust in loved ones. To be betrayed is to be completely deceived, and that is a hard thing to endure. I say this because I know it. It has happened to me and I will never forget it, but I have definitely overcome the pain.