Details of an Energy Audit

Contentss page Abstract†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.1 Introduction†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦1 Methodology†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..1 Brief background on energy†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.1.1 The difference between a kW and a watt†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..1.1.1 How much energy do you devour in a month, twelvemonth, hence how make you cipher these values†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦1.1.2 Calendar months of the twelvemonth you consume a batch electricity†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦2 Appliances that consume a batch of electricity in your household†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦2 Recommendations on how you could cut down your electricity bill†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..2 How much you could salvage per month†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦2 Disadvantages of cut downing your energy bill†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦2 References†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..2-3 Appendix†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.5 Abstraction Today in South Africa we are holding outages in our power supply of which is a job that is caused by direction, utmost conditions conditions, the presence of few natural stuffs and works failure. The intent of my research is to make an energy audit for my place and hence usage it to gauge approximately the figure of other families excepting me that are practising the same life style as mine in order to find the whole consequence it can hold countrywide I will utilize all my findings to my advantage which includes, largely of import to utilize energy more expeditiously, prevent doing hit-or-miss determinations refering energy use and besides to seek to plan and/or manage energy workss more sagely. Hence I can still utilize my consequences to happen out the tendencies and forms of energy use overtime. My findings are as follows, we have peak and off-peak seasons of energy use, and besides we have reasonably adequate difference in our measure statements. Energy audits are non utile at a ll cost unless you will implement all the recommendations stated on the analysis. Introduction Last twelvemonth in South Africa we started to see a deficit supply once more like 2008, of electricity from ESKOM which resulted in burden sloughing and curtailment as control measures to this issue. My hypothesis for this research is as follows, there is an addition or diminution of energy ingestion in my place during peak and off-peak seasons. All the findings that I will bring forth will be reflecting my home’s energy ingestion. When I did this study I had some few ends in head that I wanted to accomplish, foremost I want to implement practical methods which are really effectual in salvaging energy, secondly I want to do an consciousness of what are the possible hereafter events that we can see as a consequence of taking hit-or-miss determinations sing energy, hence I want them to do deliberate moves whenever they use electricity and my last purpose is to convert my parents to implement every bit many as possible of my recommendations when it comes to power salvaging, from what I have I can state that my energy study will assist me and my household to accomplish this job we are presently confronting at the minute. Method In this subdivision I will demo all my general scientific process I used to obtain my consequences logically. First I collected all the pieces of information that I will necessitate to do my undertaking a world, this includes:Energy measures, and general information about my place i.e. which devices do we utilize and how long do we utilize themBRIEF BACKGROUND ON ENERGY 1.1.1The difference between a kW and a W A kW and a W they both measure the same measure i.e. power ( the rate at which work is done ) , the lone difference is that a W is 1*10-3a kW, and the unit of measuring of kW.h is the work done ( i.e. the energy ) the merchandise of power and the clip taken T. 1.1.2 How much energy do you devour in a month, twelvemonth, how do you cipher these Numberss? I will presume that a month has 30 yearss for computation intents, hence I will utilize table 1 on page 5 for all the relevant values required in the computations: Tocopherol ( kWh/day ) =P ( kilowatt ) *t ( h/day ) ?1000 ( w/kW ) and for the cost I will utilize this expression Cost ( cents/day ) =E ( kWh/day ) *Cost ( cents/kWh ) ?100 ( cents/R ) . Our tariff charge in Nkomazi municipality is R1.3531 per kWh unit. Energy In a month=E*30 yearss and in a twelvemonth is E*365 for an single contraption. Calendar months of the twelvemonth where electricity is consumed the most June-August is regarded as the clip of the twelvemonth were the is a really high demand of electricity because of the rough conditions conditions that are outside, people tend to prosecute themselves into indoor activities or watch Television for the whole twenty-four hours, and besides due to the utmost conditions people use a batch of heating contraptions to maintain themselves warm during winter Devicess that consume a batch of electricity in my familyall the devices that are highlighted in yellow in table 1.i used the expression stated beneath to cipher this. Recommendations on how you could cut down your energy measureHeat the H2O with a boiler instead than a pot, rinse your dishes utilizing your custodies prevent utilizing the lavation machine, ne'er leave your Fe unattended, purchase a new theoretical account icebox since it saves more energy. Ensure that you unplug the microwave since it uses energy to maintain the clock show on. I suggest that you continue utilizing your ceiling fan than purchasing the air conditioner. Amount you can salvage p/m if you implement the above recommendationsthe sum you can salvage is indicated on the appendix page,I assumed that you decrease the clip use by 5 % except for the icebox. Disadvantages of using my recommendations stated beneath You will stop up non finishing your undertakings up to the maximal degree a good illustration is when utilizing a computing machine. Again when you cut the clip for the visible radiation bulbs finally you will be in the dark. Furthermore if you want to cut the clip for the icebox you will stop up holding spoiled nutrient material. Decision From this energy audit it is clear that if you will utilize an contraption for a long clip it will devour a batch of energy, therefore even though an contraption have a lower power evaluation but if you will utilize it for a long clip it will devour a batch of energy. Sing the affair of cut downing the electricity measure for some contraptions I don’t see it as a good thought since you might stop up non working up to the peak degree of your undertakings. MentionsRichard, M. Felder,Ronald, W. Rousseau.2005.Elementary rules of chemical procedure.3rdEdition. United States of America:John Wiley & A ; Sons, Inc. Lynne C. Capehart,Barney L. Capehart.Writing user- friendly Energy audits studies. University of Florida energy analysis and diagnostic. Department of Industrial and Systems technology. Deon Conradie. 2014/15.Duty& A ;Charges booklet. South Africa. The Eskom Company. Singer, Brett C. , Jennifer L. Coughlin, and Paul Mathew,Summary of Information and Resources Related to Energy Use in Hospitals-Version 1.0,Report # LBNL-2744, Lawrence Berkeley National Laboratory, Berkeley, October 2009, pp 53. , hypertext transfer protocol: //hightech.lbl.gov/documents/healthcare/lbnl-2744e.pdf Specialists in Business Information,Energy-Efficient Home Renovations Market, Full Report,December 2009, 248 pp. , hypertext transfer protocol: //www.sbireports.com/Energy-Efficient-Home-2287648/ . Accessed April 2015. Sanchez, Marla, Carrie Webber, Richard Brown, John Busch, Margaret Pinckard, and Judy Roberson,Space Heaters, Computers, Cell phone Chargers: How plugged in Are Commercial Buildings? Report # LBNL-62397, Lawrence Berkeley National Laboratory, Berkeley, February 2007, 15 pp. , hypertext transfer protocol: //enduse.lbl.gov/info/LBNL-62397.pdf. Rogers, David, â€Å"Data Centers: Cost and Energy Savings† ( Presentation at the Program Meeting, Long Beach, California, 2008 ) , http: //www.cee1.org/cee/mtg/01-08ppt/thursday/23RogersBCHydroaData % 20Centers01172008.pdf Ostendorp, Peter, Suzanne Foster, and Chris Calwell,Televisions: Mode Energy Use and Opportunities for Energy Savings,NRDC Issue Paper, Natural Resources Defense Council, Washington D.C. , March 2005, hypertext transfer protocol: //www.nrdc.org/air/energy/energyeff/tv.pdf American Council for an Energy Efficient Economy,Emerging engineerings study: In-Home energy usage shows.Washington, D.C. , July, 2007, hypertext transfer protocol: //www.aceee.org/emertech/2006_EnergyDisplays.pdf Appendix Table 1: Appliances that uses electricityAppliancekilowatthrs./dayE/dayE/monthE/yearDishwasher1.200.7500.90027.0329Microwave1.400.4200.58817.6214Refrigerator0.35012.94.521341650Washing machine0.5000.4290.2156.4578.5Iron1.100.5000.55016.5200Computer0.2005.001.0030.0365Fan ceiling0.1004.500.45013.5164Television 13’’0.06004.500.2708.1098.6Light bulbs0.06006.000.3601081314Toaster1.100.1800.1985.9472.3Electric range4.000.9103.641091329Blender0.3000.05830.01750.52563.9Kettle2.000.4080.81624.5298Table 2: Cost of the contraptions per month before and after 5 % decreaseAppliancesCost/day ( before )Cost/day ( after )Monthly Cost ( before )Monthly cost ( 5 % )SalvagingDishwasher0.1220.1163.663.480.18Refrigerator0.0611†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦1.83†¦Ã¢â‚¬ ¦ .†¦Ã¢â‚¬ ¦ .Washing machine0.002900.002760.08700.08280.00420Iron0.007440.007080.2230.2120.0110Computer0.01350.01290.4050.3860.0190Fan ceiling0.006090.005790.1830.1740.00900Television 13’’0.003650.003480.1100.1040.00600Toaster0.002680.002540.08040.07620.00420Electric range0.04930.04681.481.400.0800Blender0.0002370.0002250.007110.006750.000360Kettle0.01100.01050.3300.3150.0150Microwave0.007960.007570.2390.2270.0120Light bulbs0.04870.04631.461.390.0700*Note there are no values for the icebox since cut downing the sum clip will do the nutrient inside to botch. Monthly cost after 5 % reduction=sum of single cost *100=R785.40c excepting the icebox ( if included =R968.40c ) Cost before reduction=R826.50c therefore the economy is R41.10c excl. icebox.

What’s wrong with Walmart?

Adding to the articles provided in the class, I chose â€Å"Walmart Mexico Bribery Case† and â€Å"Walmart Offers Jobs to Veterans†. Reading these articles, I once more thought that Walmart is a huge company. Walmart employs about 1. 4 million people in the United States. They operate more than 10,800 retail units under 69 banners in 27 countries. In 2013, the magazine ‘Fortune’ ranked Walmart as a biggest company in the United States. These numbers all show that Walmart is a large company and it is hard to operate. Walmart have a central office in Arkansas, and the chief executive and board member make all the important decisions and policy of the company. However, if the company has so many employees and the shops, it is difficult to control all the employees. Thus in the ‘Pollutant Dumping Case’, the Walmart California store improperly disposed hazardous waste. The central office had a comprehensive and industry-leading hazardous waste program, but this issue made it clear that some of the workers were not aware how to handle hazardous waste. Additionally, the other article was about the Walmart protest movement. At first, I did not know about the OUR Walmart, but I was surprised to find this organization. I could not find out how big the organization is, but the existence of OUR Walmart itself tells us that Walmart have many workers and the worker’s opinion is hard to reach to the chief executive. As a result they make protest movements to claim for better wages and improved working conditions. All in all, the recent Walmart issue is the evidence that the central office is struggling to control all of the shops in the U. S. and the other countries. All of the big companies with shops in many locations will suffer to manage the workers. To solve this problem it is necessary to make manual, guidelines, instructions, hotlines, help lines, and audits. If the company failed to make these systems and have a high commitment with the top manager, the company will likely to corrupt or make mistakes like Walmart.

Nosocmial Infection Related to Having Surgery In A Hospital Research Paper

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Reflective Journals on real ear measurment and prescription rules - Essay Example But patient response/opinion should also be in parallel with that of the audiologist in order to reach target. A cooperative patient will of course yield successful results whilst a patient in denial will not. A good fit is an important benefit to patients and that the use of REM recognizes the differences between coupler and real-ear measurements. In addition, patient benefit is greater when the target is well-matched. The baseline measure is useful when the patient will want to change aid later on. REM also shows the effects of fine tuning and provides graphical confirmation to the audiologist that the intended prescription/processing strategy have been implemented by the hearing aid software. Real ear measurement ensures the audiologist will be able to understand the whole process. REM is also helpful during counselling of patient and their family members about what they can and cannot hear. It will verify the function of advanced features like directional microphone and even nois e reduction features. Therefore, the audiologist should be adept about REM. During the lectures and readings, I also learned considerations for adults and children patients due to different approaches to real ear measurement. It was suggested that normal hearing in infants are uncertain (Ching et al, 2001). There are also acoustical differences between the ear canals of children and adults that affect the audiometric data as well as the hearing aid amplification. The audiologist should be aware of this when faced with a child or adult patient. To minimize or eliminate mistakes in prescribing amplification, the audiologist should base thresholds in sound pressure level at the tympanic membrane. Measurement errors are seen to be fewer for adults, especially those with average ear canal size and resonance. Children are also more restless during probe tube

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Population Environment Resource 3 - need in 12 hours - Essay Example But the biggest benefit in conservation of energy in a personal level is the personal savings that one can have. For example, instead of spending money on gas for your car, you can save money for a family vacation. Most countries, like Germany and the United States, has experienced an energy crisis (Nolan, p.98). Because of this, the cost of energy began to increase because of the monopoly of this trade. With that, it is evident that energy becomes a controversial issue since the entire nation is using it for whatever purpose it may serve them, like in industrialization or just simply a family’s everyday living, like cooking or watching TV. Aside from the increasing price of fuel and energy because of high consumption, it also impacts the environment in such a way that it pollutes the environment. Energy used proved to produce high levels of carbon dioxide and other gases that is detrimental for human health (Davies and Mazurek, p.237). With this, it can be concluded that high energy consumption coupled with its effects on the national economy and the environment jeopardizes the national security. The government has been developing projects for energy efficiency through the use of alternative energy resources. One form of energy saving program that the government is pushing is the use of solar energy. Since it is an unlimited resource, even if there is a high energy consumption based on the solar power, it will not affect the limited natural resources that we have (Peddle, p.18). Also, it will increase the savings that the nation will have since the individuals are not purchasing and ordering fuel and gas, which costs a considerable amount of money. Aside from controlling the use fuel through by improving fuel efficiency in cars, it is also important that the government look into the energy consumption of each individual. Even if each person uses a fuel-efficient vehicle, if they have a high consumption of gas,

Thornton's Strategic Choices Essay Example | Topics and Well Written Essays - 4500 words

Thornton's Strategic Choices - Essay Example 18 References 21 (Words 4997) 1. Introduction The identification of successful strategies is a key challenge for managers worldwide. Usually, the ability of managers to locate strategies that are able to respond to organizational needs is differentiated, according to the personal skills and perceptions. Also, each organization’s external environment is likely to affect, more or less, the progress of strategies of the particular organization. In this context, the establishment of an effective strategic management framework can help an organization to increase its efficiencies and stabilize its market position. Kew and Stredwick (2005) note that three are the key elements of all strategic management frameworks: ‘the strategic analysis, the strategic choice and the strategic implementation’ (Kew and Stredwick 2005, p.205). The first of these elements, i.e. the strategic analysis addresses the following two issues: ‘which is the organization’s current pos ition and where the organization wants to go’ (Kew and Stredwick 2005, p.205). At the next level, the strategic choice refers to the need for the identification of appropriate strategic options, as appropriate, for responding to the organization’s needs, as they have been identified through the strategic analysis process (Kew and Stredwick 2005). ... In 2011, the firm’s employees were estimated to 4,205 (Thornton, company website, investor relations 2012). The firm’s turnover in 2011 was estimated to ?218.26m, slightly increased to the turnover of 2010, which was estimated to ?214.55m (Thornton, company website, investor relations/ financial summary 2012). The firm’s performance during the last five years indicates that the organization has been able to face effectively the market challenges. Indeed, the turnover of the firm from 2007 up to 2011 has been changed, as presented in the table in Figure 1 below. Turnover of Thornton from 2007 to 2011 2007 ?185.99m 2008 ?208.12m 2009 ?214.80m 2010 ?214.55m 2011 ?218.26m Figure 1 - Turnover of Thornton from 2007 to 2011 (Source: company website, investor relations/ financial summary 2012) According to the figures presented in Figure 1 below, the organization has managed to achieve a continuous growth. However, if reviewed more carefully, the organization’s pe rformance has not been improved the last five years. More specifically, the organization’s profits have been significantly decreased in 2011, if compared to 2007, as also revealed through the table in Figure 2 below. Profits of Thornton from 2007 to 2011 2007 ?5.21m 2008 ?6.07m 2009 ?3.60m 2010 ?4.35m 2011 -?0.25m Figure 2 – Profits (after tax) of Thornton from 2007 to 2011 (Source: company website, investor relations/ financial summary 2012) At the same time, the number of the organization’s employees has been decreased in 2011, as compared to 2010; in 2010 the firm’s employees were 4,377 while in 2011 they were reduced to 4,205 (Thornton, company website, investor relations 2012). Also, problems in regard to the alignment

Volcanoes Risks and Benefits Essay Example for Free

Volcanoes Risks and Benefits Essay The term volcano can either mean the vent from which magma erupts to the surface, or it can refer to the landform created by the solidified lava and fragmental volcanic debris that accumulate near the vent. One could say, for example, that large lava flows are erupted from Kilauea volcano in Hawaii, the world volcano here signifies a vent. Volcanoes are not the realm of any single scientific discipline. Rather they require study from many scientists from several specialties: Geophysicist and Geochemist to probe the deep roots of volcano; Geologist to decipher prehistoric volcanic activity; Biologist to learn how life became established and evolve in barren volcanic islands; and meteorologist to determine the effects of volcanic dust and gases on the atmosphere, weather and climate. Volcanoes affect humankind in many ways. Their destructiveness is awesome, but risk involved can be reduced by assessing volcanic hazards and forecasting volcanic eruptions. Body Volcanoes Risks and benefits  Definition First of all, we should know what a volcano is. Volcano is an opening in the earth’s surface. Through this opening has come rock so hot that it is in a liquid or gaseous state. This melted rock deep in the earth is called magma. Philosophers once thought that volcanic eruptions came from the burning of natural fuels. Sir Charles Lyell and his associates later showed the volcanic mountains were piled up from the products of their own eruptions For hundreds of years, volcanoes have struck terror and wonder into the heart of man. In ancient time, they even moved man into worship. The word volcano comes from Volcanus, the name of the Roman god of fire. The name was first used for volcano, one of the Lipari Islands in the Mediterranean Sea where the god was thought to live. Kinds of Volcano Volcanoes are commonly classified as active, dormant and extinct. The distinction between the categories is not very clear and consequently any classification based on this criterion and is highly arbitrary. The separation of dormant and extinct volcanoes is particularly difficult. A volcano may lie quiet many hundreds of years and then awaken, often violently. Some volcanoes are constantly active . Izalco in El Salvador, and Stromboli in the Mediterranean Sea, erupt so regularly that they have been compared to light houses. Those that are quiet, but have not been dead for us to know when they will break out again are called dormant volcanoes. Volcanoes that have been remained quiet since the beginning of recorded history and probably will not erupt are called extinct volcanoes. Other volcanoes can be called intermittent because, they erupt fairly at regular periods. Many of these erupt in cycles, with the length of cycle being fixed by the amount of time needed to make enough heat to produce eruption. Types of eruption In classification schemes based on character of eruption, volcanic activity and volcanic areas are commonly divided into six major order of increasing degree of explosiveness: (1) Icelandic, (2) Hawaiian, (3) Strombolian, (4) Vucanian, (5) Pelean and (6) Plinian. The Icelandic type of eruption is characterized by effusion of basaltic lave that flow from long parallel fissures. Such outpouring build lave patterns. The least violent type of eruption is termed Hawaiian and is characterized by extensive lava flows from central vents or fissures and occasionally accompanied by lava ountains. Strombolian eruption is characterized by moderately fluid lava flows, usually accompanied by violent lava-fountaining that produces and abundance of volcanic bombs and cinders. Vulcanian eruptions are characterized by viscous lava that form short, thick lava flows around vents; very viscous or solid fragment of lava are violently ejected from these vents. Pelean eruptions are similar to vulcanian eruptions but have even more viscous lava; domes from over the vents, and ash flows commonly accompany the dome fountais. Plinian eruptions, also known as Vesuvian eruptions, are volcanic eruptions marked by their similarity to the eruption of Mount Vesuvius in AD 79 (as described in a letter written by Pliny the Younger, and which killed his uncle Pliny the Elder). Plinian eruptions are marked by columns of gas and volcanic ash extending high into the stratosphere, a high layer of the atmosphere. The key characteristics are ejection of large amount of pumice and very powerful continuous gas blast eruptions. Risks Volcanoes release volcanic hazards that may cause the life of human kind to be in danger. These volcanic hazards are Pyroclastic Density Currents (pyroclastic flows and surges), Lahars, Structural Collapse: Debris flow-Avalanches, Dome Collapse and the formation of pyroclastic flows and surges, Lava flows, Tephra fall and ballistic projectiles, volcanic gas, Tsunamis and Volcanic Lightning Pyroclastic density currents are are gravity-driven, rapidly moving, ground-hugging mixtures of rock fragments and hot gases. This mixture forms a dense fluid that moves along the ground with an upper part that is less dense as particles fall toward the ground. The behavior of the fluid depends upon the solids concentration relative to the amount of hot gases. High concentration density flows are called pyroclastic flows and are essentially nonturbulent and confined to valleys. Low concentration density flows are called pyroclastic surges which can expand over hill and valley like hurricanes. Temperatures may be as hot as 900 degrees Celsius, or as cold as steam. Pyroclastic flows and surges are potentially highly destructive owing to their mass, high temperature, high velocity and great mobility. Deadly effects include asphyxiation, burial, incineration and crushing from impacts. Many people and the cities of Pompeii and Herculaneum were destroyed in 79 AD from an erupion of Mount Vesuvius; 29,000 people were destroyed by pyroclastic surges at St. Pierre, Martinique in 1902; 2000 died at Chichonal Volcano in southern Mexico in 1982 from pyroclastic surges. The only effective method of risk mitigation is evacuation prior to such eruptions from areas likely to be affected by pyroclastic density currents. Lahars are part of the family of debris flows that are fluids composed of mixtures of water and particles of all sizes from clay-size to gigantic boulders. The abundance of solid matter carries the water, unlike watery floods where water carries the fragments. Debris flows have the viscous consistency of wet concrete, and there is a complete transition to watery floods. Lahars are composed of volcanic particles and originate directly or indirectly from volcanic action. Lahars can form by hot pyroclastic surges or flows entering watershed systems or flowing over snow and ice, by eruptions through crater lakes, by heavy rains on loose volcanic debris that is, any process by which volcanic particles can become saturated by water and move downs lopes. They can move with velocities as low as 1. m/s to as great as 40 m/s on steep slopes (1 m/s = 2. 55 miles per hour). They are known to have travelled as far as 300 km (1 km = 0. 63 miles). Lahars have destroyed many villages and lives living on Indonesian volcanoes because most people live in valleys where lahars flow. The 21,000 lives lost at Armero, Colombia, were from a lahar that formed during the eruption of Nevado Del Ruiz in 1985. It was generated by melt water from the interaction of pyroclastic surges with snow and ice, from a very small eruption. Lahars can transform into regular floods as they become increasingly diluted with water downstream. This phenomenon was first discovered at Mount St. Helens where hot pyroclastic surges transformed to lahars, which further transformed to hyper concentrated stream flow and then to normal stream-flow turbulence. The eruption of Mount St. Helens on May 18, 1980 started with a relatively small volcanic earthquake that caused collapse of the north side of the volcano because it was over steepened and therefore unstable. When the landslide occurred, it decreased the pressure on the pressurized interior of the volcano which expanded explosively to form a lateral blast that devastated the countryside north of the volcano. Most of the debris flow avalanche was diverted down the North Fork Toutle River, but some moved directly northward over a 300 meter ridge and down into the next valley. Since the 1980 Mount St. Helens eruption, dozens of volcanoes that have given rise to avalanches have been discovered. For example, 40 avalanches exceeding 1 Km3 in volume, and 22 with a volume of less than 1 km3, are now known from the Quaternary alone, and 17 historic volcanic avalanches have been identified. The hilly topography north of Mount Shasta in northern California is now known to be the result of a have debris-flow avalanche. Some are known to extend up to 85 km from their sources and to cover tens to more than 1000 km2 in area. Lava flows rarely threaten human life because lava usually moves slowly a few centimeters per hour for silicic flows to several km/hour for basaltic flows. An exceptionally fast flow at Mt. Nyiragongo, Zaire (30-100 km/hour) overwhelmed about 300 people. Major hazards of lava flows burying, crushing, covering, burning everything in their path. Sometimes lava melts ice and snow to cause floods and lahars. Lava flows can dam rivers to form lakes that might overflow and break their dams causing floods. Methods for controlling paths of lava flows: (1) construct barriers and diversion channels, (2) cool advancing front with water, (3) disruption of source or advancing front of lava flow by explosives. Tephra consists of pyroclastic fragments of any size and origin. It is a synonym for pyroclastic material. Tephra ranges in size from ash (2 mm) to lapilli (2-64 mm) to blocks and bombs (64 mm). Densities vary greatly, from that of pumice (0. 5) to solid pieces of lava with density about 3. 0. Blocks from basement material may exceed 3. 0. Material may be juvenile (formed of magma involved in the eruption) or accidental (derived from pre-existing rock). Tephra fall and ballistic projectiles endanger life and property by (1) the force of impact of falling fragments, but this occurs only close to an eruption, (2) loss of agricultural lands if burial is greater than 10 cm depth, (3) producing suspensions of fine-grained particles in air and water which clogs filters and vents of motors, human lungs, industrial machines, and nuclear power plants, and (4) carrying of noxious gases, acids, salts, and, close to the vent, heat. Burial by tephra can collapse roofs of buildings, break power and communication lines and damage or kill vegetation. Even thin (2 cm) falls of ash can damage such critical facilities as hospitals, electric-generating plants, pumping stations, storm sewers and surface-drainage systems and sewage treatment plants, and short circuit electric-transmission facilities, telephone lines, radio and television transmitters. When dispersed widely over a drainage basin, tephra can change rainfall/runoff relationships. Low permeability of fine ash deposits leads to increased runoff, accelerated erosion, stream-channel changes and hazardous floods. In contrast, thick, coarse-grained deposits closed to the source can increase infiltration capacity and essentially eliminate surface runoff. Many of the hazards of tephra falls can be mitigated with proper planning and preparation. This includes clearing tephra from roofs as it accumulates, designing roofs with steep slopes, strengthening roofs and walls, designing filters for machinery, wearing respirators or wet clothes over the mouth and nose because tephra can contain harmful gases adsorbed on the particles as acid aerosols and salt particles. Magma is molten rock containing dissolved gases that are released to the atmosphere during an eruption and while the magma lies close to the surface from hydrothermal systems. The most abundant volcanic gas is water vapor; other important gases are carbon dioxide, carbon monoxide, sulfur oxides, hydrogen sulfide, chlorine, and fluorine. The gases are transported away from vents as acid aerosols, as compounds adsorbed on tephra and as microscopic salt particles. Sulfur compounds, chlorine and fluorine react with water to form poisonous acids damaging to the eyes, skin and respiratory systems of animals even in very small concentrations. The acids can destroy vegetation, fabrics and metals. Atmospheric veils of dust or acid aerosols caused by large-volume explosive eruptions can affect regional or global climate. Most volcanic gases are noxious and smell bad, but they can cause mass fatalities. A rare case of mass deaths by volcanic gases in 1986 at Lake Nyos, in Cameroon, West Africa. Tons of carbon dioxide spilled out of Lake Nyos, and flowed silently down a canyon and through 3 villages occupied by 1700 people. They and 3000 cattle died instantly from lack of oxygen. Carbon dioxide emissions are now being monitored at Mammoth Mountain, California. A tsunami is a long-period sea wave or wave train generated by a sudden displacement of water. Tsunamis travel at very high speeds through deep water as low broad waves and build to great heights as they approach the shallow bottom of shores. Most are caused by fault displacements on the sea floor, but many have been caused by volcanic action. The eruption of Krakatau in 1883 produced tsunamis that killed 36,000 people. The pyroclastic flow generated by this eruption displaced the water that initiated the tsunamis.

Causes and Effects of Learning Difficulties

Causes and Effects of Learning Difficulties All learning disabilities are neurological disorders, the effects are from difference in the way an individual’s brain function. Children with learning disabilities can be as smart as their peers who do not have learning challenges. However, it can be difficult for children with learning disabilities to read, write, reason, recall information, spell and often times figure things out on their own without guidance. Learning disabilities are usually lifelong issues and they cannot be fixed or cured. Children that suffer from learning disabilities can succeed in school with the right support and supervision. Parents play an important part in a child’s success in school. Parents should encourage children’s strengths and know their weakness. They should understand the education system and learn about strategies in overcoming specific difficulties in the learning disability by collaborations and educating themselves by professionals. Many famous people in American histo ry had learning disabilities such as Albert Einstein who wasn’t able to read until age nine (What is a Learning Disability? | LD OnLine, n.d.). According to the National Institutes of Health one in every seven Americans suffers from at least one learning disability. Reading difficulty dominates with up to 80 percent of students struggling with reading on a daily basis. Additionally, basic reading and language abilities are commonly present in children that suffer from learning disabilities. Modern medicine has come a long way in diagnosing and treating some of the common learning disabilities such as Attention Deficit Disorder (ADHD) and Dyslexia, as well as the lesser known Auditory Processing Disorder (APD), Dyscalculia, Dysgraphia, Visual Perceptual and Visual Motor Deficit. Scientists are learning every day how to better diagnose and increase support for those that are burdened with learning challenges. If a child’s learning disability is discovered early enough in their life the right guidance can help the child develop the necessary skills needed to live a productive life. Recently the National Institute of Health held a study which revealed over 67 percent of students with reading difficulties becoming at an average level or above in reading after special help was provided in early grades. If a parent is educated and aware of the early signs of learning disabilities, they can recognize potential signs early and get them help. Many parents can recognize character in their children that can possibly be caused by learning disabilities. At a preschool age if a parent notices the pronunciation problems, difficulty following directions, slow vocabulary, pronunciation, trouble learning numbers, alphabet, colors and shapes and often speaks later than children their age they should get their child checked for learning disabilities. In kindergarten through fourth grade children with disabilities can show signs of slow learning the connections between letters and sounds, confusing basic words, making constant spelling and reading errors and poor coordination. Through grade 5 and 8 children may have difficulty with handwriting, reverse letter sequences, trouble making friends and trouble understanding body language and facial expressions. In high school and through their adult years a person with a learning disability may continue to spell incorrectly, have trouble summarizing, and difficulty adjusting to new settings. Learning disabilities were an unknown phenomenon simply chalked up to be Minima brain damage prior to the 1940’s. There was no difference between a student with brain damage, and a lower IQ, versus a student with a high intelligence and a learning disability (History of Learning Disabilities (Part 1), n.d.). Dr. Douglas Haddad says â€Å"children who exhibited difficulties in learning were thought to be mentally retarded, displayed emotional disturbances, or be socially and culturally disturbed. Early studies on individuals with learning problems reported that they had the same learning problems as individuals who were shown to have brain damage, but appeared normal, otherwise. Thus, the term â€Å"minimal brain damage† was introduced. â€Å". Further research suggested that these learning issues were not so much issues with the brain itself, but more biologically stimulated learning disabilities. The term â€Å"minimal brain dysfunction† (MBD) was introduced. In 1961, President John F. Kennedy created the President’s Panel on Mental Retardation (Chiles, 1987). Increasing amounts of cases caused interest in student learning, and research began. â€Å"In 1969, the federal government recognized â€Å"specific learning disabilities† as a category with special education. The concept of specific learning disabilities referred to a certain subgroup of students who did not achieve academically with their ability, seemingly due to a central nervous system dysfunction that was mainly attributed to a wide spectrum of psychological disorders.† -Dr. Douglas Haddad. Now students with learning disabilities such as dyslexia, Auditory Processing Disorder (APD), and Attention Deficit Hyperactivity Disorder (ADHD) have special programs set up for them to learn in an environment unique to their needs. Our senses are separated, so not everything that our ears hear is interpreted by our brains. This would be the case with Auditory Processing Disorder (APD). Students with this disorder can have hearing that is passing, or even above average for their auditory test, but have trouble learning due to the fact that they cannot interpret the sounds that they hear. For the average person the brain processes sounds seamlessly and almost instantly. With APD, some difference mixes that process, to a child with APD, â€Å"Do you want to ride your bike or watch a movie?† may be processed or perceived as â€Å"Do you like Mike or batch cookies†. It can make simple questions or commands extremely difficult for someone who has been diagnosed with APD. Other learning disorders present very similar problems in daily tasks. Dyscalculia and Dysgraphia are two examples of other learning disorders that can make the normal learning process a difficult and uncomfortable experience. Dyscalcul ia is defined as a mathematical disability in which a person has a difficult time solving arithmetic problems and grasping math concepts. Dysgraphia is defined as a writing disability in which a person finds it hard to form letter or write within a defined space. Children and adults can suffer from one or more of these learning disabilities which would make conventional learning extremely difficult (Understood | For Learning and Attention Issues Understood, n.d.). The understood team, authors for theunderstood.org say †Many children with APD also have dyslexia, ADHD and other conditions. Recent research suggests that auditory processing issues may be a contributing factor to dyslexia.† Professionals can diagnose these different learning disorders, and generally they diagnose them at a young age. There is no difference in what these children see or hear, but there is a major difference in the way that they receive this information. They can struggle in one area such as Math, or English, or even memory but excel in others. Specialized teachers can play a major part in ensuring that these children succeed in today’s world. Attention deficit hyperactivity disorder had first been described in 1902 by a Sir George Still, followed by the evidence that ADHD could arise from brain injury in 1923 by a Franklin Ebaugh; in 1967 the Federal Government funds (National Institute of Mental Health) first used for studying effects of stimulants on children with hyperactivity. Statistics of ADHD had begun in 1972 with a little under 6% for the National Health Interview Survey, followed by a second survey in 1976 with statistics closer to 5% in a time where Cylert, Dextrostat and Dexadrine had come on to the market to compete with Adderall (Data and Statistics | ADHD | NCBDDD | CDC, n.d.). This however was the beginning of the mediation processes which had started to overtake practical practices of helping this dysfunction. The rates of ADHD only continued to grow by a slower percentage, but picking up to approximately 3% per year from 1997 to 2006 and an average of approximately 5% per year from 2003 to 2011, surveys showing that the increase is growing exponentially by the years! In 2003 the survey had a statistic result of 7.8% for children diagnosed, then had grown to 9.5% in 2007 and in 2011 the statistic was up to 11% in children between the ages of 4-17 (6.4 million). The average varied from state to state with a low 5.6% in Nevada to a high of 18.7% in Kentucky (Data and Statistics | ADHD | NCBDDD | CDC, n.d.). Kids with ADHD tend to be easily distracted, missing details, and frequently changing what they are doing at the very moment after a few minutes. They have difficulty focusing on one thing and become bored very easily. Many times they have trouble focusing, organizing, learning and completing homework, often losing things such as pencils and toys. Day dreaming is common, difficulty processing information quickly and accurately, as well as following guidance or instructions. Also symptoms of hyperactivity may cause fighting, nonstop talking, dashing around, having difficulty doing t asks quietly and impulsively blurt out random comments, show emotions without restraint (NIMH †¢ Attention Deficit Hyperactivity Disorder, n.d.). Many victims of this disability are usually overlooked due to adults thinking it is simply disciplinary problems, but ADHD is growing because of genes, environmental factors, brain injuries, sugary foods and additives in foods. ADHD is treated with medications and various types of psychotherapy or combination of the treatments. The parents who have kids with this condition can help by making structure in the child’s life, such as organizing everyday items, using homework and notebook organizers, being clear and consistent, especially giving praise or rewards when rules are followed. Formal definition of dyslexia is â€Å"a disorder in children who, despite conventional classroom experience, fail to attain the language skills of reading, writing and spelling commensurate with their intellectual abilities (World Federation of Ne urology, 1968, pg 26). . Dyslexia was first unknowingly discovered in 1890’s and early 1900s by a British ophthalmologist named James Hinshelwood. He defines it as a congenital defect, occurring in children with otherwise normal and undamaged brains characterized by a difficulty in learning to read. He noticed symptoms like difficulty reading and writing also letter reversal was largely common. Later on a neurologist in 1925 by the name of Samuel T. Orton worked primarily on stroke victims until he met a girl who could not read and had the same symptoms of those stroke victims. He then began to research, reading difficulties that are unrelated to brain damage and has determined a syndrome as such. Orton had observed that visual deficits did not cause dyslexia, but something else did. His theory was that the condition was caused in the brain by failure to establish hemispheric dominance. Orton also noticed that the children he was studying were largely left or mixed handed (He nry, 1998). Each individual experiences different severity of this learning disability, but all have the same symptoms that affect reading, fluency and comprehension, recalling information, writing, spelling and in some cases speech patterns. Dyslexia can also exist with other learning disabilities and can sometimes be the cause of those with learning disabilities. Dyslexia is often called the language based learning disability due to most of its symptoms being language related (Dyslexia, n.d.). Symptoms of dyslexia may include reading slowly, experiencing disorder of letters, difficulty with math computation and difficulty recalling known words. Some strategies in overcoming dyslexia include using Audiobooks and books with large print and spacing between the lines. Teachers should use other methods to allow progress for student with dyslexia such as allowing alternate forms of book reports, provide students with a copy of lecture notes, and teach student to use logic rather than memory on tests and other work. Through our eyesight we gain visual information that helps us process our surroundings and allows us to manage our daily activities. Our visual perception plays a key role in our abilities to learn mathematics, spelling and reading. Deficits in visual perception can lead to learning deficiencies in learning basic mathematics, recognizing and remembering words and letters, also the mathematical concepts of size and position, as well as mixing up words with similar begi nnings and poor handwriting. All these characteristically been associated with learning disabilities of visual processing disorder. Auditory processing disorder involves a deficit in a person’s ability to analyze information received through hearing. It is not to be confused with problems such as deafness or being hard of hearing. A person with auditory processing disorder can hear just fine the issue is much deeper in the way the brain processes the information received. This learning disability interferes with language and speech learning as well as reading and spelling. Especially when instructions given in classrooms are primarily verbal, a child with this deficit can have extremely hard time following instructions and understanding the lesson. Some ways teachers can help students with this disability include allowing students to dictate creative stories, allowing use of computer word processing, avoiding grading handwriting, using large print books, providing tracking to ols for reading such as rulers and text windows and providing alternatives to written assignments for those students (Visual Perceptual/Visual Motor Deficit, n.d.). In comparison to the general population people with learning disabilities have a greater chance of developing physical and mental issues. As a result of their lack of ability to properly describe their symptoms to a health care professional many are left untreated. Although life expectancy is increasing over time individuals with learning disability still are at a higher risk of early death (Hollins et al., 1998; McGuigan et al., 1995). Parents play a great role in a child learning process, especially when a child has a learning deficiency. Parents need to keep things in perspective, if to help their child succeed. Learning disabilities are not undefeatable, give your child plenty of physical and emotional support. Be an expert in your child, every child is unique even when they have the same learning disability do your own research into what helps and what does for your child. Learn about programs and techniques that can improve their learning ability. Embrace being a proactive parent and speak up for your child to get special attention they need from teachers and other educators but remain calm and realistic. Remember to be a good role model for your child as they do follow in your footsteps regardless of learning disability or not. References Chiles,L. (1987). Federal involvement in mental retardation programs: Past, present, and future directions.American Psychologist. doi:10.1037//0003-066X.42.8.792 Data and Statistics | ADHD | NCBDDD | CDC. (n.d.). Retrieved from http://www.cdc.gov/ncbddd/adhd/data.html Dyslexia. (n.d.). Retrieved from http://ldaamerica.org/types-of-learning-disabilities/dyslexia/ Henry,M.K. (1998). Structured, sequential, multisensory teaching: The Orton legacy.Annals of Dyslexia,48(1), 1-26. doi:10.1007/s11881-998-0002-9 History of Learning Disabilities (Part 1). (n.d.). Retrieved from http://learningdisabilities.about.com/od/whatisld/fl/History-of-Learning-Disabilities-Part-1.htm Hollins, S., Attard, M.T., von Fraunhofer, N. Sedgwick, P. (1998). Mortality in people with learning disability: risks, causes, and death certification findings in London. Developmental Medicine Child Neurology, 40, 50-56. McGuigan, S.M., Hollins, S. Attard, M. (1995). Age-specific standardized mortality rates in people with learning disability. Journal of Intellectual Disability Research, 39, 527-531. NIMH Attention Deficit Hyperactivity Disorder. (n.d.). Retrieved from http://www.nimh.nih.gov/health/publications/attention-deficit-hyperactivity-disorder/index.shtml?rf=71264 Understood | For Learning and Attention Issues Understood. (n.d.). Retrieved from https://www.understood.org/en Visual Perceptual/Visual Motor Deficit. (n.d.). Retrieved from http://ldaamerica.org/types-of-learning-disabilities/visual-perceptual-visual-motor-deficit/ What is a Learning Disability? | LD OnLine. (n.d.). Retrieved from http://www.ldonline.org/ldbasics/whatisld World Federation of Neurology. (1968). Report of research group on dyslexia and world illiteracy. Dallas: WFN