Teaching of English as the Second Language Essay

Teaching of English as the Second Language - Essay Example It is also important for the tutor to be familiar with the syllabus so that s/he the communication flow is flawless and effective when the students are being taught. (Gisela Ernst-Slavit & Margaret Mulhern) The SIOP model advocates use of inputs associated with the students' first language for them to connect with and transfer in course of learning the second language. The syllabus must ideally consist of bilingual lessons and text so that the student could read and comprehend the lesson in his or her own language first and then attempt reading and comprehending the same lesson in the second language. The use of the students' first language in teaching of second language is a powerful tool to achieve quick results by means of systematic, step by step approach involving variety of orals, visuals and group activities. Depending on the age group, gender, culture, the students' general knowledge and grasp, study material consistent with the students' faculties and knowledge level are chosen in the students' first language and supplemented with the second language s/he is about to study. The students will have the opportunity of reading the lessons in their own language, and subsequently read through the same lessons in the second language.

Islamic Art Essay Example | Topics and Well Written Essays - 1000 words

Islamic Art - Essay Example For this reason, construction of mosques as well as other buildings related to religion was considered the responsibility of rulers of that time. Therefore, the patronage of caliphs played an important role in the development of early Islamic art forms. This patronage allowed the birth of Islamic architecture, the decoration of religious buildings and their furnishings; a trend that was previously unknown to the world. In contrast to the art forms of other regions which utilize sculptures or paintings as the predominant form of expression, the Islamic art utilizes decoration as a medium or art and expression. The initial manifestations of this type of art work are seen in monuments and mosques of those times, which portray decoration that is extraordinary and expensive in nature. Due to the vital position of mosques in the Islamic society, decoration as a medium of expression was applied on these buildings during the early period of Islam   (Lapidus 97). Another unique art form ter med calligraphy also started to evolve; this time into patterns that were not only meant to communicate the message of Islam, but also to contribute to the aesthetic value of mosques and other religious buildings. This decorative use of the sacred texts in buildings that was religious in nature paved way for various art forms that were aesthetically appealing to a wider audience. Hence calligraphy started finding place in objects like stone, wood, glass, pottery and textiles. Dome of the rock was built in the seventh century.

The cry of humanity Essay Example for Free

The cry of humanity Essay Many people often cry for this word in some parts of their lives. People express their craving for this entity in different manners such that protests and silent rebellion can be counted as examples of expression of the desire in attaining freedom. People may seem to be so vulnerable when it comes to freedom that they tend to freak out whenever their freedom is being suppressed by other people, say parents or government leaders. I, being a member of the human society also cry for this at times. I am pleading to have my allowance be increased during my high school days and I do not want anyone to hinder my joy in my party life with my friends. Moreover, I want to have my own kitchen and my room so I am free of making my own sandwich with no one to share and ask â€Å"for the nth time around, why are you still eating? † Freedom for me is act of being free to do things whether it is good or bad. Freedom only differs with the words that are tagged to it say for academic freedom, spiritual freedom and political freedom. Academic freedom is something that can be related with the right of every child to be sent to school and receive the essential information about life and sciences. Nowadays, technology is in its boost however, many people especially the youth are not receiving it due to poverty and some terrorism attacks in their country. Political freedom on the other hand, is the appropriateness of the rights and privileges received by each member of the society. When girls are not allowed or permitted to enter politics due to the patriarchal norms of the country, she is experiencing political depression. Spiritual freedom goes with the ability of every person to express their faith without persecution and judgment from others. It is the moment of freely obeying what is in ones doctrines with the practices of a religion or a sect. Faith: An Expression of Freedom From the time of Moses, when the Israelites are still slaves by the Pharaoh Ramesis, they are not able to see the reality that there is a true God aside from the statues and walls of the pyramids or palaces. They were just given the idea that gods can transform stick into snakes but not with some interventions like setting them completely free. Moses actually had doubts the first time he has been called by God at the burning bush and had Aaron to talk for him, as it was commanded by the One who talked to Moses. It was when they believed that there is a far better life than serving the Egyptians. They were able to escape them through the guidance of God hence they were able to head for the Promised Land that is full of flowing milk and honey: that is Canaan, for instance. Christianity is one of the most populated religions in the world. Apparently, most of the societies follow by the practices and the traditions of the said religion. They perceive men would be the best leaders for the society thus sometimes giving no chance for women who have potentials also in leading the church. I now of a church that do not give an account in letting their women preach for they believe in the abilities of men. Society has been a part of molding the beliefs of every people in the world. Since it is composed of many different parts like norms, values and ethics, one may not be so shocked that people really have different point of views on things. Luckily, there are passionate people that give time in studying them. Freedom in choosing a religion is more prevalent during our time since there were already people who fought for it during the early 15th to 17th century. The battle of being recognized as people with strong and distinguished faith is not a problem anymore. There may be different religions that can be seen else where like Catholic, Protestant, Buddhist and Muslims, but we are lucky enough to have the chance to choose the religion that suits our lifestyle. Perhaps will not be our passes to eternal life, but it is our faith that separates us from others and with that, we will be living with those standards as long as we are alive. Speaking our freedom Mass media is a source of information that gives us the idea of the current events in our country. Whether news pertains to celebrities or politicians or calamities, the existence of the developed broadcasting or journalism is a big help in easing some of our life’s problems. During some points in the martial law, and dictatorial presidency or leadership of some leaders in the world, the news and public affairs of those were put into a shut, giving no opportunities for them to report the true and correct occurrences in their country. Those people who will rebelliously report the anomaly will be soon in the death bed with a bullet on their head or chest part. Ellis obviously gave his points of view regarding this matter. He cited some examples that can give us the idea of what freedom of speech is. The presentation of ideas were detailed hence it gave me the feeling that media should not be oppressed for telling the truth. It should be fought for instances of government abuse. Freedom of speech doesn’t only occur on the broadcasting part of the society but also in the inner communities wherein the normal people lives. It is the way people express their ideas with no hesitations and no other people that would tell them what to do. It does not necessarily mean going with the opposite flow of the norms but rather, it is an opportunity to bring more treasures in the mind bank of every civilizations. For sure, there are many beliefs that are outdated and can not be applied to the present situation of the world. With that, presentation of ideas is necessary to solve some of the troubles at a certain time. Ideas are best presented with no hesitations, but I agree that it is a healthy way of enriching a body’s mind through some exchange of ideas that can actually get into a conclusion that resolves the case yet, both parties had their own time for shining, explaining their point of views. Questioning may be a good sign of comprehension thus signifies the impact of the thing that we are after. Freedom for both As many people have argued and died for religion and freedom of expression, we must note that we are fortunate that we were born in an era where we no longer have to battle with guns and swords for it like the gladiators and the cowboys before. Having them establish at this point will b\make it much more easier for us to choose what is right rather than seeking for it or founding a new one. Both religion and speech are parts of our lives that our essential in our beings. Religion, as we all know has the idea of god or gods that direct our path to what we think is right. It may show us the best way to do things in their right place and time. While speech is a channel of ourselves that help us be known by others. It is very important that we are able to fight for them thus our rights for living may not be suppressed also. There may be instances that people will contradict what we believe in but it is very important that we truly know what we are standing and living for. Life is a matter of believing and striving for some realizations. References Freedom of Speech – Reader Feedback and Response. Retrieved 14 July 2008 from http://blog. tomevslin. com/2006/02/freedom_of_spee_1. html Hurd, Michael J. 2008. Judge Joseph Lieberman by his Ideas, Not His Religion and Race. Retrieved 13 July 2008 from http://www. capmag. com/article. asp? ID=716 Thomas Jefferson. 1999. Freedom of Religion. Retrieved 14 July 2008 from http://etext. lib. virginia. edu/jefferson/quotations/jeff1650. htm

Management of Mandibular Condylar Fractures (MCF)

Management of Mandibular Condylar Fractures (MCF) Summary This paper reviews the literature of evidence based studies and textbooks on the management of mandibular condylar fractures (MCF). It also provides a brief outline of the signs and symptoms as well as the classification system of MCF. Optimal management of MCF is a controversial topic and there is also no consensus on its associated classification system. Overview The mandibular condyle is an articular surface that is part of the temporomandibular joint which facilitates the rotational and translational movement of the mandible. The condyle varies in appearance between individuals and also by age group to accommodate developmental variations, and also due to malocclusions, trauma and diseases. The condyle is a weak point due to its relatively low stiffness and as such is more prone to fractures than other parts of the mandible. The condyle acts as a buffer primarily to reduce intracranial injuries. Based on review of two studies, Boffano et al, 2015, reported that condylar fractures ranges from 35% to 43% of all mandibular fractures. According to Afrooz et al, 2015 condyle fractures represent 27.4% of all mandibular fractures. Based on their review of the US National Trauma Data Bank records, they also conclude that mandibular fractures are primarily caused by external causative factors such as assault, motor vehicular accidents and falls. Internal causative factors of fractures can include osteomyelitis and tumors; but are not as significant as the external factors. Signs of Mandibular Condylar Fractures Condylar fractures can be unilateral or bilateral. A patient with condylar fracture can show the following signs (Peterson Kruger, 2011): Occlusal Prematurity Reduction in vertical height of the mandible on the injured side as a result the injured side makes contact first; sometimes followed by rocking motion and then occluding to maximum intercuspation. Careful observation of the mandibular closure will show the alteration in the alignment Inability to Achieve Maximum Intercuspation In bilateral fractures, due to the fracture of both condyles there is a premature contact of the posterior teeth with a large anterior open bite. Bilateral condylar fractures along with symphysis fracture can cause posterior cross bites and anterior open bites Ipsilateral Laterognathia- In unilateral fractures there is laterognathia on the side affected by the condylar injury. Due to retrodisplacement of the mandible on the injured side, there may be Class II molar malocclusion on that side. Ipsilateral Deviation on Opening- In unilateral fractures, while opening the mandible gets deviated to the side of the injury Balancing Side Occlusal Interference during Contralateral Mandibular Translation Balancing side interferences may be present when performing contralateral jaw movements in unilateral condylar fractures Limited Mouth Opening This can be attributed to interferences of the fracture, displacement and/or rotation of the segments, coronoid impingement, bleeding, edema and pain from joint splinting. Classification of MCF There has been a lack of general consensus on the classification of the anatomical mandibular condyles which in turn has caused disagreement on the most effective way of management of MCF. There are a few systems used for classifying Condyle fractures. In the earlier days, a number of classification systems were based on radiological X-rays and were not supported by surgical experiences and findings. These systems included those proposed by Kohler, Reichenbach and Wassmund. The Lindahl system developed in 1977 is a popular method of classifying condylar fractures. In this method, the position of the fracture is the main determinant as to whether it falls in the condyle head, the condyle neck or the condyle base. These areas are delineated by specific landmarks and reference lines. This system was refined further by Loukota et al in 2005 by subdividing the condylar process more precisely and delineating defined anatomical landmarks[1]. However a drawback of this classification method is that the degree of displacement or dislocation which is essential to surgical intervention is not captured. The Spiessl method categorises the condylar fractures according to the point of occurrence of the fracture (low or high) without displacement and with displacement or dislocation as well as condylar head fractures. This classification system has been used in clinical and scientific use however there is still a limitation in that it does not define the degree of angulation nor clearly articulate the borderlines between low or high fractures. Management of MCF The management of mandibular condylar fractures has been a controversial subject. The options to management of condylar fractures include: do nothing (observation), closed reduction or open reduction techniques. With the do nothing option only practical in the simple and straight forward cases, the real debate is whether to pursue closed or open reduction. A number of variables must be taken into account to determine the treatment method. These variables include the patients age, presence of teeth, severity of fracture of the condyle and associated fractures of the mandible, fracture height, extent of malocclusion, patients adaptation, patients masticatory system and unilateral or bilateral occurrence. A literature review of many evidence based studies was undertaken with advantages and disadvantages of both the closed reduction and the open reduction methods as postulated by researchers and clinicians. The summarised findings are outlined below. Eckelt et al, 2006 undertook a study on 66 randomised patients and compared the results of open versus closed treatment of fractures of the mandibular condylar process. They stated that correct anatomical position of the fragments was achieved significantly more often in the operative group in contrast to the closed treatment group. They also found that the patients who had operative treatment reported less pain. In terms of mandibular function impairment, they reported that the persons who had operative treatment had less pain and discomfort. They also reported that there was significant differences in mouth opening/lateral excursion/protrusion between both groups (open 47/16/7mm versus closed 41/13/5mm). They concluded that both treatment options for condylar fractures of the mandible yielded acceptable results. However, operative treatment, irrespective of the method of internal fixation used, was superior in all objective and subjective functional parameters. In a study conducted on 27 patients in India, (Ragupathy, K 2016) comparing the outcomes of surgical vs nonsurgical treatment of mandibular condyle fractures, he reported that no group had malocclusion. Of the 11 persons in the open reduction group one person had a post-operative infection and two had temporary facial nerve weakness. In the closed reduction group, nine patients had loss of vertical ramus height and six had reduced mouth openings (less than 35mm). He concluded that .. nonsurgical treatment gives satisfactory clinical results, though the condyle is not anatomically normal in radiographs, whereas surgical treatment provided more accurate results clinically as well as radiographically. Kysas, 2012 et al undertook a meta -analysis of 20 studies involving analyses of 1,186 patient comparing closed reduction to open reduction in patients with condyle fractures. It must be noted that only 4 out of the 20 studies were randomised control trials (RCT). In addition, they noted that there was significant variation between treatment protocols, follow-up periods, and outcomes measured. Kysas considered a number of post treatment functionalities such as status of the post-treatment occlusion, mouth opening, protrusion, facial height, pain and the presence of postoperative ankyloses. They also considered facial nerve weakness and scarring in the case of open reduction method. The 4 RCT studies reported statistically significant conclusions favouring open reduction method over the closed reduction method; however Kysas et al found some shortcomings in these studies methodologies. Kysas et al concluded based on their meta-analysis that open reduction method for condylar fractures may be as good as or better than closed reduction. In addition, they reported that morbidity associated with surgery is low. However, they caution that available evidence is of poor quality and as such not strong enough to change clinical practice. Choi et al, 2012 summarised the advantages and disadvantages of both open and closed reductions methods. Advantages of Closed Reduction No injuries to nerves or blood vessels. No post-operative complications such as scar or infection. No tooth germ injury occurs because there is no establishment of crown of permanent teeth; this is beneficial for pediatric patients. Disadvantages of Closed Reduction Because of the insufficient reduction of bone fragments, there can be disorderly or excessive growth of the mandible and displacement of the ramus or mandibular deviation can occur. In addition there can be injury to the periodontal tissue and buccal mucosa, poor oral hygiene, pronunciation disorder, imbalanced nutrition, mouth opening disorder, and respiration disorder. Advantages of Open Reduction Minimise the number of displaced bone fragments to the best location possible. Prevent future complications such as respiratory disorder, original pronunciation and minimise nutritional imbalance Disadvantages of Open Reduction Possibility of damage to blood vessels and nerves exists. There is potential for post-operative complications. A permanent scar is very likely. Choi et al suggests that for pediatric patients, because of their elastic bone structure and thick soft tissue coverage, thin cortical bone and significant premature trabecular bone, no severe impact occurs upon receiving trauma. As such treatment methods can differ between pediatric and adult patients. They suggest that because most of the growing crown of the permanent tooth has not yet been completed, the ratio of bone tissue to the tooth is relatively low. In addition, in developing dentition, the teeth are in different stages of formation and maturation; they can also easily be in the line fracture which in turn can cause delayed eruption and ankylosis. Intermaxillary fixation of more than 2 weeks is not recommended for these pediatric patients and open reduction is not normally used since it is invasive and there is risk of facial nerve injury. They also report , no significant difference in prognosis is found compared to closed reduction. Conclusion Management of MCF remains a subject area where there is a lack of consensus on whether open reduction or closed reduction method is more suitable. Where there are some convergence of ideas include that intracapsular fractures are better treated closed6, it is better to deal with pediatric patients with closed reduction where practical and that physical therapy post treatment is important. Traditionally, closed reduction techniques were more prevalent; however with enhancement in tools available for surgical intervention, open reduction techniques are being practised more, with the added benefit of evidence based studies on such techniques becoming more available. References Afrooz, P., Bykowski, M., James, I., Daniali, L., Clavijo-Alvarez, J. (2015, December). The Epidemiology of Mandibular Fractures in the United States, Part 1: A review of 13,1442 Cases from the US National Trauma Data Bank. Journal of Oral and Maxiloofacial Surgery, 73(12), 2361-2366. Buffano, P., Kommers, S., Karagozoglu, K., Gallesio, C., Forouzanfar, T. (2015). Mandibular Trauma: A two centre study. International Journal of Oral and Maxillofacial Surgery, 44(8). Choi, K.-Y., Yang, J.-D., Chung, H.-Y., Cho, B.-C. (2012, July 291-300). Current Concepts in the Mandibular Condyle Fracture Management Part I: Overview of Condylar Fracture. Archives of Plastic Surgery, 39(4). Choi, K.-Y., Yang, J.-D., Chung, H.-Y., Cho, B.-C. (2012). Current Concepts in the Mandibular Condyle Fracture Management Part II: Open Reduction Versus Closed Reduction. Archives of Plastic Surgery, 39(4), 301-308. Eckelt U1, S. M., KL, G., E, K., R, L., M, R., J, S., H, T. (2006, July). Open versus closed treatment of fractures of the mandibular condylar process-a prospective randomized multi-centre study. Craniomaxillofacial Surgery, 34(5), 306-14. Goldman, K. E., Meyers, A. D. (2015, August 31). Mandibular Condylar and Subcondylar Fractures. Retrieved from Medscape: http://emedicine.medscape.com/article/870075-overview#a8 Hegde, S., Praveen, B., Shishir, R. (2013). Morphological and Radiliogical Variations of Mandibular Condyles in Health and Diseases: A Systematic Review. Dentistry ISSN, 3(1), 1. Kyzas, P. A., Saeed, A., Tabbenor, O. (2012). The treatment of mandibular condyle fractures: A meta-analysis. Journal of Cranio-Maxillofacial Surgery, 40(8). Neff, A., Cornelius, C.-P., Rasse, M., Torre, D., Audige, L. (2014, December). The Comprehensive AOCMF Classification System: Condylar Process Fractures Level 3 Tutorial. Craniomaxillofacial Trauma Reconstruction, 7. Peterson, L., Kruger, G. (2011). Petersons Principles of Oral and Maxillofacial Surgery. Connecticut: Peoples Medical Publishing House. Raghupathy, K. (2016). Outcomes of surgical versus nonsurgical treatment of mandibular condyle fractures. International Surgey, 3(1). [1] (Neff, Cornelius, Rasse, Torre, Audige, 2014)

River And Water Management Flood Control Environmental Sciences Essay

River And Water Management Flood Control Environmental Sciences Essay Floods are a major concern in many parts of the world due to the many losses experienced in time of floods. Therefore, flood management techniques are very important in areas that are prone to frequent flooding. Flood management techniques are structures designed with the aim of containing floodwater in order to control floodplains. The designing of flood control techniques entails estimating the levels of water that causes floods and then measuring the required height that will create a working flood defense. Flood defenses are strong barriers that prevent water from flooding floodplains (Woods Woods 2007, p.5). Floods generally occur when flowing surface water spills over the restraining banks into dry land. Floods are a natural occurrence in almost all river systems. Areas that are prone to flooding include those that are located downstream of dams and low lying areas. Flooding causes vast losses which include human and animal life, soil erosion, damages of properties, destruction of vegetation and other environmental damages. Also, areas that are affected by floods could also be prone to droughts. This can even cause further loss of human and animal lives. Flood waters are usually polluted with harmful bacteria resulting from sewage. This means that people affected by the floods are at greater risks of getting infective diseases (Proverbs, et al., 2011, p. 221). However, floods also have positive impacts on ecosystems. One benefit from flooding includes more fresh water for domestic and irrigation usage. Other benefits include large deposits of minerals and nutrients into affected areas. Apart from these, floods also help to improve the condition of water ecosystems. However, they can be considered to be the most damaging compared to volcanic eruptions and earthquakes due to their frequencies. Therefore, strict measures must be in place to prevent the massive losses occurred during floods (Gruntfest Handmer, 2001, p.12). Methods used to control floods Techniques that are applied in controlling floods involve the adaptation of the river environment and areas which are close to the river. Flood control techniques can be applied on the river channel, floodway or on the floodplain (Ghosh, 1997, p.55). Techniques applied in floodplains Floodplains are areas that lie below the flood elevation and entirely on the floodway and river channel. The majority of techniques applied on floodplains lie far from the river but they are designed to reduce flood damage. Levee/Floodwall around structures This technique involves the construction of a levee/floodwall around structures that are located in floodplains. Levees can either be permanent or temporary. Construction of the levee usually requires the use of strong, artificial or natural material that can endure pressure from the floods (Hyndman Hyndman, 2010, p.356). The principle of using levees and other barriers is to raise the height of structures located in floodplains which floodwater must then climb in order cause flooding. These structures are there to offer protection to structures. However, they put other structures at a high risk of flooding due to the then increased water retention in the floodplains. Furthermore, serious damage to protected structures can then occur when the levees are unable to hold back floodwater. This is because the pressure that the floods hit the structure is extremely high compared to when there is no barrier (Green, 2004, p.36). The use of levees, dykes and floodwalls has a negative impact on the natural river processes (Harmancioglu, 1994, p.42). Ideally, developed water spills should form a natural channel which provides a way for the floods to flow. Therefore, levees would reduce the ability of the floodplains to process floodwaters. The inability of the floodwaters to flow freely within the floodplains would interfere with fish in their aquatic habitat. The river would respond by creating other channels in order to allow excess water to flow. The developed channels clear the backwater as well as reduce habitat complications (Harmancioglu, 1994, p.43). Off-stream detention pond The main aim of creating detention ponds in floodplains is to collect the floodwaters once the river has reached its maximum capacity. Detention ponds are constructed away from the floodway but must be within the floodplain catchment. When directing water into the detention ponds it will have an impact on reducing the amount of water a river carries. This will have a negative impact on natural river processes due to the reduction of water flowing downstream. Reduced amount of downstream flow could then cause a reduction in sediment transport, which may lead to the rising of the ground level of the channel and deposition of fine sediments. In addition, allowing water to flow into a detention pond may cause more water to flow into the pond than expected. This may lead to an increased development of river channels (Ali, 2002, p8.3). Detention ponds also create new surroundings for the breeding and maturing of fish. However, the construction of detention channels must be done in a way that creates a connection between the pond and the mainstream so that the rivers natural environment can be maintained. Severe damage to the environment can occur when the detention ponds break down leading to flooding in the floodplains. Techniques applied on floodway The floodway is made of river banks and the active channel. In general, the floodway forms the part of land that is immediately next to the river. This piece of land allows flood waters to pass without raising the floods depth upstream. One characteristic of floodways is the presence of small banks, either due to cuts made by previous floods or natural levees due to deposits from previous floodwater (Mambretti, 2011, p.66). Reducing the bank slope This technique consists of cutting the riverbank backwards to produce a gentler slope (Masoudian, 2009, p.14). It may involve replanting or resurfacing the bare bank using materials afterwards. Reducing the bank slope will have an impact on the increasing flood transportation at the channel level due to the increased bank width. This usually happens because reducing the bank slope increases the surface area of the bank channel, which then increases the volume of bank flow. However, if slope reduction is done through planting vegetation, it is likely that the bank stability will be increased. This has an effect of creating a natural containment, which reduces the velocity of water. A reduction in the velocity of water then decreases the rates of soil and bank erosion. Vegetation along river banks may also trap sediments within flows, which may then lead to a buildup of banks, increasing the effectiveness of banks in controlling floods (Masoudian, 2009, p.16). The fact that reducing the bank slopes then also reduces erosion along the river banks has a negative impact on natural river processes. Without erosion on the river banks there will be a reduced amount of sediments, a reduced level of wood debris and a reduced amount of channel migration. Therefore, the erosion occurring naturally along river banks is vital in maintaining an active balance within river systems. Aquatic habitats will also be affected; reducing bank slopes has a negative impact of clearing areas where fish may hibernate during the day in order to be safe from predators. Juvenile fish usually hide in undercut river banks making it an essential component of an aquatic habitat (Masoudian, 2009, p.17). Reinforcing riverbanks This technique involves adding supportive material to riverbanks in order to increase their stability and in resisting flood flows. The most commonly used reinforcement method involves planting natural vegetation as it acts as a stabilizer and increases the ability of riverbanks to control floods. Planting vegetation on riverbanks can be done through hydro seeding, which involves various methods to add a mixture of water, fertilizer and seeds into riverbanks. The planted seeds will then grow and form a vast network of root systems. The root system helps in holding the soil together, which then strengthens the riverbanks. The other method used to introduce plant material on riverbanks is hand planting. In this technique, mature plants are inserted into riverbanks to continue with their growth (Stokes, et al., 2007, p.50). Planting mature plants has the advantage of providing immediate protection against floods through flow reduction. The other method involves the use of plant mats, which are either natural or synthetic materials implanted with plant seeds and fertilizers. The mats are then spread on the riverbanks, and then the watering process follows to allow the seeds to germinate and support the following growth. Apart from irrigating the plant mats, continued instabilities in the river level can help in germination and supporting growth (Beek, et al., 2008, p.33). The main impact of introducing plants along river banks is the formation of strong riverbanks that can withstand pressure from flowing water. The other impact is the prevention of enhanced channel migration. Floods that may occur along banks with sufficient plant material may be less severe compared to those occurring in areas without plant stabilizers. The use of plant stabilizers provides a long-lasting solution to control of floods. This technique also offers an environmental friendly method of flood control, which is easy to maintain. Continued increases of vegetation along riverbanks increases channel roughness and reduces the water velocity. The use of plants also comes with the advantage of providing food for the aquatic life in the protected rivers. Fish may also find a natural habitat in the vast root system generated by plants (Beek, et al., 2008, p.34). Gabions Gabions are constructed using wire mesh baskets that are filled with stones of two-six inches. Like plants, gabions are meant to strengthen river banks, which boosts the river banks ability to resist pressure from flowing water. However, for gabions to be effective plants should be added to them. Gabions also deteriorate in time, which means that replacements are required when they stop functioning properly. The use of gabions reduces the natural erosion that occurs along riverbanks. This then reduces the amount of sediments delivered to downstream habitats. In addition, flows that are deflected by the gabions may create new river channels (Mascarenhas, 2011, p.82). Gabions also lead to an increase in water velocity, which has the disadvantage of reducing the amount of backwater that is essential for the survival of fish and other aquatic life. Well-designed gabions may serve as a reliable source for spawning gravel as well as habitats for aquatic life. Techniques applied along the river channel Sediment trap/mining This technique involves excavating or dredging a depression on the riverbed. Construction of sediment traps requires the proper assessment of sediment load within a river in times of flooding. Maintenance of sediment traps require continued mining of sediments after every serious flood event. Sediment mining reduces the amount of sediment deposits in the river channel, which in turn increases the channel volume as well as the flood transportation. Removing sediments could only have a short term impact of improved flood transportation because of the continued deposition of sediments downstream. Therefore, continued removal of sediments is necessary to prevent incidences of flooding (Mascarenhas, 2011, p.105). Removal of sediments within the river channel affects natural river processes. One effect of sediment mining is the change of the channel morphology. Any changes in the channel morphology affect the way the water flow and the river bed interact with each other. Removing sediments from the river channel changes the channel gradient. These changes then have further impacts on the gradient both upstream and downstream. An increase in the gradient in one location of the river may lead to the formation of a v point or otherwise known as a nick point. This leads to increased erosion in the channel, which extends to a point where the gradient is stable or where there is bedrock resistant to erosion (Raudkivi, 1993, p.35). The removal of sediments affects aquatic habitats in several ways. When fine sediments are removed, there is a creation of a spawning habitat for a variety of fish species. On the other hand, removal of spawning gravel reduces the level of spawning habitats (Raudkivi, 1993, p.41). Flow realignment This technique of flood control involves the digging of new and deeper channels on the river bed but with a different position compared to the existing channels. When flow realignment is done to increase flood transportation, there is a reduction in frequency and severity of floods. Flow realignment creates different structures for the river flow. This interferes with natural river processes both upstream and downstream. The most significant impact of flow realignment is obviously on aquatic habitats. The use of heavy equipment to make flow realignments creates disturbances on the river bed; this alters existing aquatic habitats. Therefore, usage of flow realignment techniques needs thorough assessment of potential impacts on the aquatic ecosystem (Fleming, 2002, p.47). Word Count: 2,108

Was Hitler a great leader or a monster? Essay -- essays research paper

To fully answer this question one must look at the underlying philosophies behind Hitler’s leadership. What did he stand for and did his ideologies have any redeeming characteristics? Indisputably he had an ability to lead and motivate. He was revered with almost God – like fanaticisms by his people. This essay will set out to establish the basis of his leadership and within that framework, the nature of the man and his vision for the world. Hitler was in many ways a great leader and his influence on the German people was immense; he used his motivational and powerful speaking abilities to gain support and popularity. Hitler knew how to appeal to people's baser instincts and made use of their fears and insecurities. He could do that, however, only because they were willing to be led, even though his programme was one of hatred and violence. Hitler was extremely Anti-Semetic and when Germany was in the state of social instability and crisis Hitler was able to easily deflect that frustration on to the Jews. After the economic and social hardship of the Great Depression Hitler began to rebuild Germany. He saw a nation of unemployed and hungry citizens and promised them economic prosperity in return for absolute power. Hitler was convinced Germany's past suffering was due to the Jewish population, and as a result initiated a campaign of hatred and isolation towards the nation's Jewish community. Hitler’s propaganda ma chine promoted the theory that the Aryan race was superior t...

Achieve Success Now Essay -- GCSE Business Marketing Coursework

Achieve Success Now We all want to have a life full of success. Many people assume without question that success is essentially material, that it can be measured in money, prestige, or an abundance of possessions. These can certainly play a role, but having such things is no guarantee of success. The success that we should strive for is the ability to love and have compassion, the capacity to feel joy and spread it to others, the security of knowing that one’s life serves a purpose, and finally, a sense of connection to the power of the universe. All of these are what create the dimensions of success, which will bring inner fulfillment. We as human beings are made of mind, body, and spirit. Of these, spirit is the most important, for it connects us to the source of everything. In other words we can describe it as our conscience. The more clearly that we think, the more we will enjoy the abundance of the universe. Our conscience is broken down into many different layers, the most important being our self-esteem. Our self-esteem is portrayed by our interactions with others. â€Å"Some simple examples of how we should use are self esteem is:  · Always greet people with a smile. As simple as it sounds, a smile establishes your own self-worth and shares it with others.  · Always say â€Å"thank you† when you are praised. A simple thank you is the universal mark of an individual with self-esteem.  · Surround yourself with people who enjoy their work. People with self-esteem seem to radiate it to others.† The second most important layer of the conscience is our attitude. 2â€Å"A positive attitude means everything†. Have you ever noticed when you enter a room with a huge smile on your face, give someone a c... ... right and expand them. In other words we must learn to give a hundred and ten percent and never give up. Remember the first step to success is to think BIG and always believe in yourself in whatever you do. Bibliography: Applegate, Jane. Succeeding In Small Business. New York: Plume, 1992. Boone, Louis E. Boone & Kurt’s Business. Fortworth: Oryden Press, 1995 Davenport, Rita. Making Time, Making Money. New York: St. Martin’s Press, 1982. Griffen, Ricky W. How To Succeed In The Business World. 2nd ed. Boston: Houghton Mifflin Co., 1988 Jassinowski, Jerry, and Robert Hamrin. Making It In America. New York: Simon & Schulster, 1995. Pride, William M. Business. New Jersey: Prentice Hall, 1989. Vesper, Joan, and Vincent Ryan Ruggiero. Contemporary Business Communication. New York: Harper Collins College Publishers, 1993