Thursday, October 31, 2019
Law for Business Assignment Brief Case (The Water Cooler Disaster) Essay
Law for Business Assignment Brief Case (The Water Cooler Disaster) - Essay Example In this scenario, there is clearly an agreement, whereby the trader promises to deliver 100 water coolers and 1000 50 litre replacement bottles of water in return for a consideration of ? 6000. There is the intention to create legally binding agreement, which is evidenced in writing through the terms of the contract. Consequently, a contract exists between the trader and the company. Contractual terms define the obligation of both parties to a contract. A failure to comply in full with a performance of an obligation, devoid of any lawful excuse, is a breach of the contract. In a contract for the sale of goods, there are both the express and implied conditions. Express conditions are usually spelt out in the contract, while most implied terms are statutorily derived. This scenario involves a contract of sale of goods. A contract for sale of goods is defined at section 1 of the Sale of Goods Act 1979 to mean ââ¬Å"a contract by which the seller transfers or agrees to transfer the prop erty in goods to the buyer for a money consideration called price.â⬠Therefore, beside the express terms in the contract, the terms implied by the Sale of Goods and Services Act 1982, shall apply. The Company can recover damages from the trader for breach of the contract. ... With regards to the express terms, the contract stipulates that the trader was to provide water coolers that take standard sized replacement bottles which are widely available. However, the water coolers actually supplied were not of universal size and design and it will not be possible to buy replacement bottles. This is breach of a condition. A condition is a term that goes to the root of the contract, the breach of which entitles the innocent party to terminate the contract and to have compensation of the damages awarded. In Behn V. Burness1 a ship was stated in the contract of charter party to be ââ¬Ënow in Amsterdam.ââ¬â¢ The fact that the ship was not in the port at the date of the contract discharged the charter from performance. Section 13(1) of sale of goods Act 1979 provides that ââ¬Å"where there is a contract for the sale of goods by description, there is an implied condition that the goods will correspond with description.â⬠In this scenario, the water cooler s to be delivered were described to be able to take standard sized replacement bottles. Therefore, this was a condition implied on the contract by the Sale of Goods Act 1979. To add, Sale of Goods Act implies the condition that the goods sold ought to be of merchantable quality. Section 14(2) stipulates that ââ¬Å"where seller sells goods in the course of business, there is an implied condition that the goods supplied under the contract are of merchantable quality, except that there is no such condition-â⬠¦ (b) If the buyer examines the goods before the contract is made, as regards defects which that examination ought to reveal.â⬠Consequently, there is evidently breach of conditions both express and implied. A breach of a condition entitles the injured party to damages. In this scenario, the
Tuesday, October 29, 2019
Statistics on Violent Crime Among UK Youth (2013) Project
On Violent Crime Among UK Youth (2013) - Statistics Project Example The police and Crime Survey for England and Wales (CSEW) have different descriptions of what constitutes a violent crime: for example, the CSEW categorises robbery as a violent crime provided it was committed by a series of activities involving actual or threatened injury to the body of the victim. The police, however, leave out the crime from a list of violent crimes, mainly because in some cases manifest violence is not present. In addition, law enforcement agencies have also excluded murder and sexual violence from violent crimes for purposes of dealing the perpetrators commensurate punishments. Owing to the fact that 25% of all offences are executed by juveniles, it is estimated that more half of the violent crimes in the United Kingdom in 2013 were committed by individuals who are between the ages of 16 and 25. Statistics indicate that members of the group engaged in more than a million cases of violent crimes in 2013 alone. The children and young adults, mostly in high school and colleges respectively were behind more than 50% of all homicides, robberies and burglaries (United Kingdom Defence & Security, 2014). The Home Office findings indicate that the youth aged between 16 and 25 engaged in the highest incidences of violent crime. Generally, the Home Office established that the young criminals were to blame for more than 50% of violent crimes as demonstrated in figure and table 1. Their overall of one in two violent cases of crimes is greater than previous figures, which put the percentage at less one in four cases. Government statistics show that almost 20% of all juvenile youth first apprehended in 2004 continued their delinquent behaviour through 2013, with 16-year-olds being most likely to engage in repeat offences (Flatley, 2013). As such, the report indicates the youth crime estimates underscore the need of tackling deviance among juveniles in order to reduce violent crime. Reform of youth justice programs since 2003 have seen drastic decline in the prevalence of violent crime, especially for individuals who were subjected to detention, but a 2014 report published by the National Audit Office indicated reoffending rates had soared, especially among the youths subjected to community service as punishment for their violent criminal behaviour in the past (Government of the United Kingdom, 2013).Ã Ã
Sunday, October 27, 2019
Lightweight Aggregate for Concrete Blocks
Lightweight Aggregate for Concrete Blocks 3R Reduce, reuse, and recycle. Almost everyone has heard those three words but the environment that we live are getting more polluted each day. In Malaysia, there is as annual production of over 4 million tonnes of waste Oil Palm Shell (OPS). Exploit this waste material not only maximises the use of oil palm, but also helps preserve natural resources and maintain ecological balance. Certain workmanship factors can be appreciable effects on the strength of block work such as incorrect adjustment of suction rate in block, bond between the units of block and deviation from vertical plane or alignment. Therefore, interlocking design is one of the better solutions for concrete blocks to solve this kind of workmanship installation problem. Interlocking lightweight concrete block can reduce building dead weight effectively and reduces transportation costs and foundation load requirements. Furthermore, interlocking lightweight concrete block is save time to installation for construction and allows many homeowners easy to do the work themselves. Interlocking lightweight concrete block provide better joint between units of block because they are self aligning and this is greatly increases the speed of construction. This is kill three birds is one stone for time, cost, and quality. So the selection of size, shape, body and surface appearance of Interlocking block is a great decision for prevent all those all common defect. AIM To apply waste material Oil Palm Shell (OPS) and Styrofoam as lightweight aggregate at Interlocking lightweight concrete blocks. OBJECTIVE To study compressive strength and density of lightweight concrete To study Oil Palm Shell (OPS) and Styrofoam as lightweight aggregate. To study the factors affect the strength of block. To produce the prototype of Interlocking lightweight blocks. SCOPE OF STUDY The scope of study for this dissertation is concerned about design of interlocking lightweight blocks by using lightweight material. The material using is Oil Palm Shell (OPS) and Styrofoam as lightweight aggregate. This research will cover on the performance (strength and density), design, and production a prototype of interlocking lightweight concrete blocks. BACKGROUND Interlocking lightweight blocks is one of the building walls used as barrier to control mass, energy, and particulate flow both within and across the system.. The shape of the Interlocking blocks is tongues on the top surface of the block and grooves at the bottom surface of the block. The function of tongues and grooves is to restrain horizontal movement when laying the interlocking block at the top of another without the use of mortar joints to provide better bond between units of block and make the wall strong enough to carry loads. Besides, interlocking block is a great invention for construction industry to save time and easy labour installed the wall either stacked or running bond configuration. For the cost issue, interlocking block is economical than conventional block due to no need to high-wages skilled masons and less mortar to use. Therefore the building costs are lower than for standard masonry construction. Lightweight concrete can be defined as a type of the concrete which is lighter than conventional concrete density in the range of 140 to 150ib/ft3 (2240to 2400 kg/mm3). Lightweight concrete can be categories into three types which is no-fine concrete, aerated/foamed concrete and lightweight aggregate concrete. The main specialties of lightweight concrete are its to lower density, basic strength (no load bearing wall) and thermal conduction. Its advantages of the lightweight concrete are reduced dead load of the building, speed up construction productivity and handling cost. This is research is based on the performance of the lightweight aggregate concrete. Therefore, the lightweight aggregate concerned to use is wastes and recycled material due to issue on environmental preservation and sustainability. Styrofoam and Oil Palm Shell (OPS) is the great selection in this researched. In Malaysia, there is an annual production of over 4 million tonnes of waste Oil Palm Shell (OPS). Oil Pal m Shell (OPS) aggregate has a unit weight of 500-600 kg/m3and this is approximately 60% lighter compared to the conventional crushed stone aggregates Currently, there is also an increasing demand for low-cost houses in Malaysia and therefore Oil Palm Shell (OPS) can be used as an alternative to the conventional aggregates in fulfil this demand (D.C.L.TEO, 2006). The behaviour of Oil Palm Shell (OPS) concrete in a marine environment was also previously studied. PROPOSED RESEARCH METHODOLOGY HOW TO GET INFORMATION The information is categories to two categories which is primary data and secondary data. The information provides the very useful knowledge, experience and briefs our minds to achieve the aim and objective easily and success. Primary sources -Experiment For getting more information, the experiments play the very importance and indispensable roles. Experiment can provide the accurate information and helpful for experiment to get the confirmation of the data. In order to get the correct data for experiment bring to successful, the standard of experiment method must be follow during the experiments. British standard is one of the useful standards to provide wide range information and also for international levels. The experiment of the concrete testing will prepare and doing at the Laboratory in Tunku Abdul Rahman College. Secondary sources -Literature review Literature review is a secondary data source in the stage which is the information that has been gathered by researchers and recorded in books, articles, and other publications. Basically, this stage is concern to review all the getting information related to the lightweight concrete and interlocking sandwich block. For the relevant information, the source can get from conducted the reference book, newspaper, journal and website. Analysis and summarized the information after collect all the related data from research. Therefore, the data provide clear direction for achieve the objective and knowledgeable in this study. WHERE TO GET INFORMATION Besides get the information from the website, article books, journals, and newspaper the experiment result also is one of the rely sources. The experiment can provide the experiment results, hypothesis of the objective and conclude answer for the study during the laboratory experiments testing. Lastly, get the actual life experience from supervisor by conducted the interview and go though the site visit. WHAT TO GET INFORMATION The information can get is primary data when doing the experiment, and secondary data from website, article books, journals, and newspaper and etc. All the data will use for summarized and analysis for the purpose of achieve the objective of study. LITERATURE REVIEW INTRODUCTION OF LITERLOCKING BLOCKS WHAT IS AN INTERLOCKING CONCRETE BLOCK? According to the (Sukri 2009) defined that interlocking hollow core concrete block that widely called interlocking block have tongues on the top surface of the block and grooves at the bottom surface of the block. The function of that tongue and groove is to restrain horizontal movement when laying the interlocking block on top of one another without the use of mortar joints to make the wall strong enough to carry loads from the upper floor or slab similar to the conventional load bearing walls. The design of interlocking concrete block is the tongues on the top surface of the block and grooves at the bottom surface of the block, is that they offer keys, which interlock with another blocks. Therefore, interlocking block provides better jointing and enough strength to support the load bearing walls. The interlocking design techniques are very effective to solve the workmanship problem to ensure the installation of block works is under better quality. Besides, interlocking blocks are d ifferent from the conventional blocks since they no need use mortar to jointing. Because of these characteristics, this is save time and no need hire high-skill workers when doing the block work. OIL PALM SHELL CONCRETE (OPSC) What is oil palm shell concrete? These mean the concrete using oil palm shell as lightweight aggregate. (Abdullah 1984) was the first one to use Oil Palm Shell (OPS) as lightweight aggregate (LWA) in Malaysia and proved that complete replacement of normal weight aggregate (NWA) with Oil Palm Shell (OPS) is a possibility. Its state the oil palm shell as lightweight aggregate to substitute normal weight aggregate is possible and success techniques to make the lightweight concrete by mixing of the cement, sand, oil palm shell, and water. According to (U. Johnson Alengaram 2010) noted for conducted further study on the using oil palm shell and found out that similar to normal weight concrete (NWC), water to cement (w/c) ratio affects the mechanical properties of palm kernel shell-aggregate concrete. The 28-day compressive strength of Oil Palm Shell (OPS) concrete varied between 5 and 25 MPa based on mix design. Based on the researched, the water cement ratio is one of the importances ke y point to mix the oil palm shell concrete because of the water ratio will direct affect the strength of the concrete with mechanical properties. Commonly, the water to be use is 0.40 to 0.60 water/cement ratio but only 0.23 of the water is required for hydration and the extra water is for full hydration and compaction of the concrete. STYROFOAM CONCRETE For the Styrofoam concrete, (M. H. Ahmad 2008) noted that From the point been mentioned above we have to look for a possible lightweight concrete which is less water adsorption and hence less cement content and therefore enhance its matrix characteristic. The potential lightweight aggregates to be used as concrete component is Styrofoam. Styrofoam has hydrophobic characteristics, non-absorbent, good insulation properties and closed cellular aggregates may have the potential to be developed as good commercial lightweight aggregates and Styrofoam concrete produced density in the range of 1297-1387 kg/m3. Commonly, the lightweight concrete requirements are including lightweight, strength, sound insulation, heat insulation, and water resistance. Based on that, Styrofoam is one of the better materials for lightweight concrete because of lightweight, and strength strong enough. Furthermore, due to Styrofoam is a hydrophobic characteristic, the water cement ratio is the main factor need to take more consideration when doing the concrete. Lastly, the Styrofoam concrete is light weight about 45% savings in total dead load of a structural member compared to conventional concrete. Therefore, this is save the cost of foundation required more special or strong technique to support the load of the building. PROPERTIES OF THE INTERLOCKING CONCRETE BLOCK REQUIREMENT OF THE INTERLOCKING CONCRETE BLOCK The interlocking concrete blocks have to provide the following functions (John Straube 2006): Support The blocks as the external or internal walls need to enough strong to support the static load (dead load) or dynamic load (live load) of the load bearing or non-load bearing walls. These loads have to be properly supported, resisted, and transferred to the building foundation. Control Interlocking blocks must be able to control mass, energy, and particulate flows both within and across the system. These include water, wind, air, smoke, odour, heat, light, noise, fire, blast, thief, birds, and insects. Finish (aesthetics) The finish function at the both of interior and exterior is the aesthetics of the finish surface, the visual, textural, and other aspect the designer wishes to convey with the visible element of the system. Distribution of service This function is related to the distribution of service through a building, both within a single element, and also multiple elements. Services like pipes, cables may run through envelope element as to provide services to the area close by. TYPES OF CONCRETE BLOCK Nowadays, concrete block have create varies designs and difference strength since they are varies types, so according (Michael Gage and Tom Krikbride 1980) notes that, with continues improvement in quality and design of concrete blocks and their wider range of applications, BS 2028:1953 and BS 1364:1947 have been repeatedly revised and amended. Now, the two standards have been incorporated in one edition BS 2028, 1364:1968 Precast Concrete Blocks. This is publication gives new defined for the block and specifies new strength categories and test procedures. The distinction between type A, B and C concrete block, is based on the block density which is calculate by weight of the block by the overall volume (include holes and cavities). See table 1. CONCRETE BLOCK TYPE A For the type A concrete block, generally is used in the building including use below ground level damp-proof course. The concrete block must be of dense concrete or one of the denser lightweight aggregates. CONCRETE BLOCK TYPE B For the type B concrete block, generally is used in the building including use below ground level damp-proof course in internal walls, and the inner leaf of external cavity walls. The concrete block must be of dense concrete or one of the denser lightweight aggregates. Normally, should be solid hollow or cellular block made with dense aggregate and average compressive strength not less than 7.0 N/mm2. CONCRETE BLOCK TYPE C For the type c concrete block, generally is used in the building which is non load bearing walls such as the partitions and panels in framed construction. The purpose just for building insulation, finish (aesthetics) and service (privacy) but no for supporting the building load. FACTORS AFFECT THE STRENGTH OF BLOCK The common defects arising from the production process which will affect the strength of the concrete block such as the defects of size, defects of shape, defects of body, and defects of appearance. DEFECT OF SIZE For the defects of the size, generally defects are oversized and undersized of concrete block caused by pool material preparation, and faulty mould. The wall will uneven due to the blocks size is not uniform to do the structure bond. This will affect structure load cannot transfer properly of the wall. DEFECT OF SHAPE Defect of shape, is the shape which is difference with the actual accurate shape to propose. Normally causes the misshapen of block are the poor preparation of the mould, faults of stacking, rough handling and uneven drying. DEFECT OF BODY Common defect of the body is faults in the raw material body can make the defect happen such as cracking, bloating and laminations. This kind of defect will make the block breaking easily with the gap on the surface. DEFECT OF APPEARANCE The defect of the appearance is the surfaces of the block have a bubble or the honey comb shape. Honey comb is a void on the exterior of a concrete face. When the concrete is not vibrated properly during installation, honeycomb will form. This is a serious flaw, since reducing the strength of block. ADVANTAGES AND DISADVANTAGES OF INTERLOCKING LIGHTWEIGHT CONCRETE BLOCK ADVANTAGES OF INTERLOCKING LIGHTWEIGHT CONCRETE BLOCK According to researched (Msesut Asik 2006) noted that, lightweight concrete lower dead load: Saving in the structural can be achieved due to the reduced dead load, particularly for longer span bridges. Lightweight concrete is light in weight than convention concrete weight; therefore reduced the dead load of the concrete for the building for supporting and transfer the load. (Msesut Asik 2006) noted that, these savings can also be reflected in the cost of foundations (particularly where pilings are required), and in formwork and false-work requirements. The lighter weight also results in savings in the handling and transportation of materials, and pre-cast elements, etc. The lighter weight can permit the use of longer spans with a consequent reduction in the number of supports required. Lightweight concrete usually will be using the recycle material as lightweight aggregate to replace the normal weight aggregate since which to save the cost of the material and environment. Besides, the concrete blocks are lightweight and precast, therefore they is results in savings in the handling and transportation of materials, and pre-cast elements. According to the interlocking lightweight concrete block advantages (Bankole-Ojo 2008) noted that, hollow interlocking lightweight concrete block, compared to hollow concrete blocks, is that they offer keys, which interlock in the other blocks. Thus these walls offer more resistance to shear and buildings would be even stronger. The interlocking block provides the shapes of tongues on the top surface of the block and grooves at the bottom surface of the block. The advantage of this technique is provides the better jointing with another block with accurate horizontal alignment when doing block work. Without the need for high-waged skilled masons (except for the base course), by saving cement (less mortar) and with the speed of construction, the building costs are lower than for standard masonry construction. The interlocking concrete blocks are no need skill worker to installation because the interlocking design technique provides general worker easy and convenience to install the block works with better alignment and jointing. Additional costs are saved by building load bearing walls, instead of infill walls between structural frameworks. DISADVANTAGES OF LIGHTWEIGHT CONCRETE BLOCK According to researched (Msesut Asik 2006) noted that, the disadvantages is Reduce resistance to locally concentrated loads as they occur at pre-stressing anchorages or bearings, hence increased confining reinforcement is required, lightweight concrete is more brittle because of high strength cement paste. The lightweight concrete need to provide more reinforcement to solve the concrete strength problem because the concrete weaker when load is concentrated. The lightweight concrete is using the high strength cement paste. Therefore this is brittle easily. The interlocking concrete blocks are no need skill worker to installation because the interlocking design technique provides general worker easy and convenience to install the block works. But still need to provide certain amount of training is required to ensure that the walls are properly aligned and no gaps are left. Because the technique is still considered new to worker compare to conventional block works. Besides, interlocking block is better in jointing and alignment but the joints are not entirely resistant to wind and rain penetration, therefore, plastering the interior wall surfaces is usually necessary. RESEARCH METHODOLOGY INTRODUCTION The research methodology that will conduct for my project dissertation is laboratory experiment material testing and application. The project dissertation is carried out at the Tunku Abdul Rahman College laboratory. OIL PALM SHELL CONCRTE Oil palm shell concrete is mixing of cement, sand, aggregates and water. But the aggregate to be use is oil palm shell to substitute normal weight aggregate. Based on (Abdullah 1984) was the first one to use Oil Palm Shell (OPS) as lightweight aggregate (LWA) in Malaysia and proved that complete replacement of normal weight aggregate (NWA) with Oil Palm Shell (OPS) is a possibility. The oil palm shell as lightweight concrete is possible and successfully to proven that can use for the building envelop. In Malaysia, there is an annual production of over 4 million tonnes of waste Oil Palm Shell (OPS). Therefore oil palm shell is very common material that can be easy get from everywhere, huge amount and cheaper. For this project dissertation, that will to do the comparison of strength and density between oil palm shell lightweight concrete (OPSLC) and normal weight concrete (NWC). PROCEDURE TO CAST OIL PALM SHELL CONCRTE The constituents of oil palm shell concrete to be use include Ordinary Portland Cement (OPC), oil palm shell, sand and water. Usually the oil palm shell surface is still coating with some oil, therefore pre-treatment to remove the surface oil is necessary. The methods to be use include natural weathering, boiling in water, washing with detergent. After removed the oil palm shell surface oil, the selected aggregate size will be done by sieve analysis. For the recommended from researched, the size of aggregate which passing through the 12.5mm sieve and retained on the 4.75mm sieve was used. For the experiment, oil palm shell concrete mixing ratio will be proposed such as 1:1:2, 1:1:3 and 1:1:4 (cement: sand: ops aggregate). STYROFOAM CONCRETE Styrofoam concrete is mixing of cement, sand, styrofoam s and water. The Styrofoam will be use to substitute normal weight aggregate. Based on, (M. H. Ahmad 2008) noted that, he said the styrofoam is hydrophobic characteristics, non-absorbent, good insulation properties and closed cellular aggregates may have the potential to be developed as good commercial lightweight aggregates. But the problem of mixing Styrofoam concrete is water/cement ratio because of styrofoam is hydrophobic characteristics, and non-absorbent. Therefore the water cement ratio to be use is less than conventional concrete mixing method. Due to these characteristic, Styrofoam is very difficult to mix with cement and sand. Therefore, from the researched find out the additional of the adhesive material can increase the plasticiser of the concrete and solve this kind of the problem. PROCEDUCE TO CAST STYROFOAM CONCRETE The constituents of Styrofoam concrete to be use include Ordinary Portland Cement (OPC), Styrofoam, sand and water. The size of the Styrofoam to use is approximate 3mm to 5mm which is Styrofoam beads. Due to Styrofoam is a hydrophobic characteristic since they are no absorber of water, therefore the water/cement ratio is less than conventional concrete required. Besides, the compaction of the Styrofoam concrete for experiment cube is by using vibration machines or hand compaction. The compaction of the Styrofoam concrete cannot by using tamping rod because of the Styrofoam will damage the Styrofoam components. From the researched, the recommend water cement ratio to be for Styrofoam concrete is 400 to 500ml. DENSITY Lightweight concrete is a concrete which is light by using the lightweight materials to replace the conventional materials. Therefore, the density of the lightweight concrete is depended on the material to be use. The different type of the lightweight materials will determine the different densities. Lastly, the density of the lightweight materials is importance to the concrete because the density of the concrete will affect the strength of the concrete. Referred to the Neville (1995), commonly the density lightweight aggregate material is range between 300 to 1850 kg/m3. The calculation the density is based on weight and size of the concrete. The method and formula to determine the density of the lightweight concrete will show in the appendix 1. COMPRESSION STRENGTH Compressive strength is one if the primary properties to ensure the strength of the concrete. They are many ways to test the compressive strength of the concrete which include destructive and non destructive tests. From the project dissertation, the method to be use for the lightweight aggregate concrete is destructive test which is cube test. The reason of choosing this method is accuracy, easy and convenient due to the size of cube is small. Furthermore, it is used as the standard method of measure compressive strength for the quality control purposes (Neville, 1994). The procedure of compressive strength test will show in the appendix 2. MAKING OF PROTOTYPE-INTERLOCKING BLOCK For this stage, the oil palm shell concrete and Styrofoam concrete as the lightweight aggregate concrete to produce interlocking blocks. The type of concrete block design is hollow concrete block which is has one or more large cavities which pass through the block. The purpose of hollow concrete block is to reduce the weight of the concrete block and provide a hole at the middle for allow reinforcement steel bar pass through it.
Friday, October 25, 2019
Resonance :: essays research papers fc
Resonance RESONANCE: " The property whereby any vibratory system responds with maximum amplitude to an applied force having the a frequency equal to its own." In english, this means that any solid object that is struck with a sound wave of equal sound wave vibrations will amplitude the given tone. This would explain the reason why some singers are able to break wine glasses with their voice. The vibrations build up enough to shatter the glass. This is called RESONANCE. Resonance can be observed on a tube with one end open. Musical tones can be produces by vibrating columns of air. When air is blown across the top of the open end of a tube, a wave compression passes along the tube. When it reaches the closed end, it is reflected. The molecules of reflected air meet the molecules of oncoming air forming a node at the closed end. When the air reaches the open end, the reflected compression wave becomes a rarefaction. It bounces back through the tube to the closed end, where it is reflected. the wave has now completed a single cycle. It has passed through the tube four times making the closed tube, one fourth the length of a sound wave. By a continuous sound frequency, standing waves are produced in the tube. This creates a pure tone. We can use this knowledge of one fourth wavelength to create our own demonstration. It does not only have to be done using wind, but can also be demonstrated using tuning forks. If the frequency of the tuning forks is known, then v=f(wavelength) can find you the length of your air column. Using a tuning fork of frequency 512 c/s, and the speed of sound is 332+0.6T m/s, temperature being, 22 degrees, substitute into the formula. Calculate 1/4 wavelength V=f(wavelength) wavelength=V/f =345.2 (m/s) / 512 (c/s) =0.674 m/c 1/4 wave. =0.674 (m/c) / 4 = 0.168 m/c Therefore the pure tone of a tuning fork with frequency 512 c/s in a temperature of 22 degrees would be 16.8 cm. The pure tone is C. If this was done with other tuning forks with frequencies of 480, 426.7, 384, 341.3, 320, 288, and 256 c/s then a scale in the key of C would be produced. There are many applications of this in nature. One example of this would be the human voice. Our vocal chords create sound waves with a given frequency, just like the tuning fork. One of the first applications of the wind instrument was done in ancient Greece where the pipes of pan were created.
Thursday, October 24, 2019
Sanitation Facilities
Sanitation generally refers to the provision of facilities and services for the safe disposal of human urine and faeces. An improved sanitation facility is one that hygienically separates human excreta from human contact. Improved sanitation generally involves physically closer facilities, less waiting time, and safer disposal of excreta. Poor sanitation is responsible for one of the heaviest existing disease burdens worldwide. The diseases associated with poor sanitation and unsafe water account for about 10% of the global burden of disease.The most common disease of poor health associated with poor sanitation is a diarrhoeal disease. Globally, about 1. 7 million people die every year from diarrhoeal diseases, and 90% are children under 5 years of age, mostly in developing countries. 88% percent of cases of diarrhoeal diseases worldwide are attributable to unsafe water, inadequate sanitation, and poor hygiene. In this essay I will analyse the economic benefits of sanitation, the eco nomic disadvantages, the link between a rise in GDP and the access to sanitation in regions all over the world including Asia, Africa, Europe and North America.I will do this by analysing data set curves which I have obtained from a various amount of sources such as national journals, reports and articles relating to this subject. I will be using data sets from the UNEP and carrying out multiple regressions. Finally I will be looking at the Environmental Kuznets model to see whether it applies to this relationship between economic growth and the access to sanitation.According to 2010 figures, approximately 2 billion people do not use improved sanitation facilities, two-thirds of which live in Asia and sub-Saharan Africa. By looking at Figure 1 we can see that it is in the developed regions such as North America and parts of Europe where people have a good access to sanitation, while on the other hand it is the mostly the developing regions such as Asia and sub-Saharan Africa with th e poor access to sanitation. This figure already makes the relationship between economic development and access to sanitation vaguely clear.The Asian and African regions would be a good place to have a look at this relationship even more closely; this is because over the past few decades, countries in the Asian regions such as China have undergone a huge advance in economic growth while on the other hand there has been little or non-existent economic growth in the African regions. Asia is the world's fastest growing economic region. China is the largest economy in Asia and the second largest economy in the world.Moreover, Asia is the site of some of the world's longest economic booms and by looking at Figure 2 it is evident to see that over the past few decades there has been a dramatic rise in the GDP of Asia but very little in the GDP of Africa. Now by looking at Figure 3 which is a graph showing the level of improved drinking/safe water coverage, improved as in drinking-water sou rces such as piped water to the house or yard, public taps and rainwater collection. Improved sanitation facilities including flush or pour-flush toilets connected to a piped sewer system.By looking at this we can see that in Asia there has also been a dramatic rise in the access to unpolluted water which is a positive relation to the GDP. I gathered the data which is on Figures 2 and 3 onto excel and carried out a regression analysis for the Asian region to help understand to what extent the strength in the relationship between the dependent variable (GDP) and the independent variable (Sanitation) which is shown on Figure 4. By looking at the R squared we can see that this model has a strong explanatory power as it is very close to 1.According to the coefficient we can also see that every time the GDP increases by $50billion, there is an increase of almost 3. 4 million people with improved access to sanitation. Poor sanitation results in an economic loss as it is linked with the co sts of treatment to sanitation related diseases and income which is lost through productivity. Furthermore poor sanitation can also lead to a loss of time and effort as a result of poor facilities, lower quality of products due to poor quality of water and of course a dramatically reduced income coming from tourism as there is a great risk of disease.According to various studies from the WHO (World Health Organisation), there has been evidence that there are huge economic costs which arise from the poor sanitation. At a global level there is a loss of around $40billion per year due to poor sanitation; looking at South Asia alone we can see that in places such as Indonesia, Vietnam and Cambodia there is a loss of around $10billion a year, the key impacts of this came about from poor health and tourism, poor sanitation can affect everyone but especially effects those who are poor(Hutton, 2007). Several studies have also been conducted to estimate the economic costs associated with poo r sanitation. In Ghana and Pakistan, for example, the indirect effect on child mortality of environmental risk has added more than 40% to the cost of directly caused child mortality. If one took into account the effect of such malnutrition, they will be able to see the huge impact on impairing school performance and delayed entry into the labour market, the cost would double to around 10% of the GDP.Improvement to sanitation can bring various types of benefits to an economy, one of which are the direct benefits of preventing or avoiding illnesses as there would be no money spent on healthcare treating patients with diseases due to sanitation. There will also be indirect benefits such as a decrease in the amount of work days absent being sick and longer life, and finally and very importantly there will be a lot of time saved. As we have seen already, sanitation is also important when it comes to economic development.In Africa many young women are dying every year as they are the ones which carry the polluted water, they are also then forced to drop out of education during puberty years in order to look after their sick children as a result of the polluted water, this means that women are not able to be educated and they can even find it difficult to join the labour supply. Every 10% raise in female literacy (due to increased attendance at school) a nationââ¬â¢s economy can grow by around 0.3% (Dollar et al, 1999). According to Hutton (2008) there could be an estimated that annual investments of around $27million in Tanzania and Vietnam would result in benefits of around $70million for the health sector alone. Hutton also estimated that there is a potential to save around $6billion in many parts of Asia if improved sanitation can be introduced. Overall Hutton stated that there are many costs and benefits available however the benefits still do overpower the costs.Moreover, the Disease Control Priorities Project recently found that hygiene promotion to prevent diarrhoea was the most cost-effective health intervention in the world at only $3. 35 per DALY loss averted, with sanitation promotion following closely behind at just $11. 15 per DALY loss averted. This is to say that economic growth and sanitation for sure have a strong relationship within one another; this can be shown on the environmental Kuznets curve.The Environmental Kuznets Curve (EKC) is a relationship between income and pollution which is hypothesized to have an inverted U-shape. The idea of an inverted U-shaped Kuznets curve stems from the Kuznets' work in income equality (Kuznets, 1955). The EKC hypothesis states that as income increases pollution goes up initially but after certain time pollution eventually declines. The point at which pollution level is the highest is called a turning point. This then evidently applies to developing countries as they are the ones which have the higher levels of income.Looking at Figure 5 we can see that in Europe up to the year 2000 w ater pollution was on a rise, however sometime in the year 2000 there was a turning point where the pollution of water started to decline. According to the Kuznets curve, in the year 2000 the economies within Europe produced a certain GDP and a certain GDP per capita which led to the decline of the water pollution. According to Figure 6 in the year 2000 the turning point on the Kuznets curve was at $18000 per capita, this is the level of GDP per capita needed in the European region in order to reverse the trend of water pollution.Looking back at Figure 5 we can also see that in the North American region up till 1998 there was an increase of water pollution however sometime in 1998, just like in Europe, peopleââ¬â¢s incomes were growing and GDP per capita was on a rise. Looking at Figure 6, according to the EKC, GDP per capita in North America will be at $36000 which is where there will be a turning point. Both the EKCââ¬â¢s for Europe and for North America are shown on Figure 7. This analysis clearly tells us that the relationship between the two is dependable on the economic stages of development.In the other regions around the world there will not be a turning point on the EKC as people do not earn enough to have this effect, good sanitation facilities are the main way in which water pollution can decrease, more developed economies around the world have the funds to invest in good sanitation, however as we have discussed, the less developed countries do not have access to these sanitation facilities therefore their economies are heavily impacted and the funds for the technology needed to provide improved sanitation are hard to come by, therefore these countries are on the upwards slope of the EKCmeaning they have not yet achieved the GDP per capita in order to have a turning point. I have aimed to show the various ways in which sanitation is fundamental to good health and also economic development. Given the data I have analysed, I can surely state tha t the investment in improved sanitation would be beneficial to an economy. Ultimately, I can say that there is a strong relationship in economic growth and access to sanitation and I can also say that the EKC does apply to the water pollution we have in the real world. Finally I can also say that the level of the turning point also depends on the stages of economic development.
Wednesday, October 23, 2019
Free Will in Experimental Philosophy Essay
Although the ââ¬Å"free willâ⬠problem envelops a spectrum of ideas, I agree with the following belief: ââ¬Å"The folk are compatibilists about free will. â⬠While there are, of course, incompatibilists and indeterminists, for the most part, the general population consists of compatibilists. Now, I know experimental philosophy has a problem with the use of generalizations without actual statistics, but throughout this paper, I will explain exactly why the world revolves in a generally compatibilist manner. Firstly, to speak of compatibilism, youââ¬â¢d have to assume that the world is deterministic, meaning that everything that happens from here on out, including human action, is caused by the facts of everything that has happened before it. With that assumption in mind, compatibilist believe that we still have free will as long as we arenââ¬â¢t operating under external limitations. The problem with that is that although compatibilists believe we are free, there is still disagreement on just exactly how free we may be, which is the weak spot indeterminists and incompatibilists use to try to break the argument. One nature of compatibilism is referred to as classic compatibilism. This means that weââ¬â¢d be acting freely as long as we, without being impeded by any outside force, take a course of action that we personally choose for ourselves. These compatibilists believe that it is the presence of impediments such as ââ¬Å"physical restraints, lack of opportunity, duress or coercion, physical or mental impairment, and the likeâ⬠that would cause us to not act freely (Caruso, 2012). However, this line of reasoning is not accepted by those who support the Consequence Argument. In the simplest terms, this argument states that no one has power over the facts of the past and the laws of nature. Also, no one has power over the fact that the facts of the past and the laws of nature entail every fact of the future (i. e. , determinism is true). Because of that, no one has power over the facts of the future (McKenna, 2004). Compatibilists respond to this by saying that the focal point should be the differentiation between free and un-free, and not by the absence of causes. Other philosophers argue that we act freely when our first order and second order desires become aligned. Because our mental processes are more developed than those of younger children and simpler animals, we have the rationale to decide whether our instincts or raw desires should be acted upon. That rationale is referred to as the second order desires (Frankfurt, 1971). For example, Chris is at the bar with his girlfriend Ana. While Chris has stepped away to the restroom, Jose approaches Ana and flirts with her in a manner that she does not feel comfortable with. Once out of the bathroom, Chris sees this. Enraged, he initially wants to go and physically put Jose in his place. In spite of this, he remembers that he is up for a promotion at work, and getting into a bar fight probably wonââ¬â¢t help his chances of receiving it. He tells Ana to collect her things. They leave. What we see here is the protagonist, Chris, experiencing first order desires that make him want to hurt Jose. His second order desires are what tell him that although he is feeling those first order desires, his second order desires are not in agreement and therefore, he shouldnââ¬â¢t act on them. Although some compatibilists seem to be satisfied with this reasoning because it justifies the causation of our actions, it doesnââ¬â¢t explain whether our thoughts and desires are consequences of the past as well. An example would be that Kate feels the desire to take a run in the park and does so. Yet, if determinism is true, which compatibilists believe it is, she is already determined to feel that way, and although she may want to feel that way, without any outside force acting on her she is not free (McKenna, 2004). Her first order and second order desires may even align, but without the ability to do otherwise, due to determinism, she would not be free. Even so, compatibilist Michael Levin says ââ¬Å"minding or accepting oneââ¬â¢s desires is as much an effect of past causes as the desires themselves,â⬠but if our internal desires are causally determined, they cannot also be free. All it would be is a different form of causality (Caruso, 2012). Nevertheless, compatibilists argue that it isnââ¬â¢t necessary for an individual to have been able to do otherwise (Nahmias, Stephen, Nadelhoffer, & Turner, 2005). If there were the choices of A through Z and someone that could manipulate me into doing A that would do so if I didnââ¬â¢t do it on my own, I would still have free will if I picked A without the manipulation. In this case, compatibilist see me as having had free will because I chose A on my own. My 1st order desires were aligned with my 2nd and that is why A happened. If I had been manipulated to do so, then the problem of free will would once again come into question, but being that the manipulator is fairly irrelevant to the story since I acted on my own accord, and would have done the same thing without the potential manipulative factor. Also, there a couple of studies done to determine what relationship non-philosophers believed existed between free will, determinism, and moral responsibility. In Study 1, there were three scenarios. Scenario 1 was negative. Scenario 2 was positive, and Scenario 3 was neutral. In all three cases, between 68 ââ¬â 79% of folk said there was free will. While there were some fluctuations in percentages when it came to the association between free will and the ability to choose otherwise, the amount of participants making judgments that disagreed with incompatibilism was two to three times greater than those that followed along with incompatibilist intuitions. This study was supported by their second study. In this study, they tell the subjects that everything in the universe is caused completely by their genes and environment. The scenario takes twins, Fred and Barney, and places Fred with the Jerksons and Barney with the Kindersons. One day they both find a wallet with $1000. Fred keeps it, while Barney returns it to its rightful owner. When polling the participants, 76% said they both acted on their own free will and could have done otherwise. This shows that the majority of folk believe that compatibilism is true, and while external factors and facts of the past might influence the choice making process, it does not define it; therefore we are free within the confines of a determined universe (Nahmias, Stephen, Nadelhoffer, & Turner, 2005). Now, why do I personally find ââ¬Å"the folk are compatibilist about free willâ⬠to be true? Aside from the aforementioned statistics, the reason is that if we did not find a middle ground between free will and determinism, we wouldnââ¬â¢t do any of the things we do. Everything from the grading systems used in schools to receiving a promotion at work all the way to fighting wars is done in a compatibilist manner. The premise of all these concepts is the idea that if you choose do X, having the option of Y, Z will happen. If you work hard enough in school (X), you will receive good grades (Z), even though you can just be lazy (Y). If you are the most productive and pleasant at your job (X), you will receive a promotion (Z). If we go into a war (X), we have the chance of winning (Z). While all the factors in each of those scenarios might have also been determined, there is no reason for us to feel disappointment when we really studied but still managed to only get a B on a test or when we lose troops across seas. Though the previous paragraph does explain that folk believe in free will, it doesnââ¬â¢t explain why folk have the compatibilist view of free will. The reasoning for that is because while compatibilists believe that you can control some aspects of your life, you canââ¬â¢t control all of them. As Michael Levin said, ââ¬Å"Compatibilist usually agree that free will does require behavior at least to be determined, since you cannot freely do what is beyond your control. â⬠For example, we are born and we die. The sun rises. The sun sets. We inhale oxygen and exhale carbon dioxide. There are certain laws of physics that we must adhere to. Some will argue that we believe those to be stable laws of how the universe will operate, but only because thatââ¬â¢s what itââ¬â¢s done until now. Tomorrow we might not have the sun rise, and tomorrow we might inhale carbon monoxide and exhale nitrogen. However, since certain things have been fixed for a trustworthy amount of time, we, the folk, have accepted it as determined facts of the universe. The determined factors of the universe are the skeleton upon which we place the flesh that is our free will. ? References Caruso, G. D. (2012). The Folk Psychology of Free Will: Arguement Against Compatibilism. Kriterion ââ¬â Journal of Philosophy, 26, 56-89. Frankfurt, H. G. (1971, January 14). Freedom of the Will and the Concept of a Person. The Journal of Philosophy, 5-20. McKenna, M. (2004, April 26). Compatibilism. Retrieved from Stanford Encyclopedia of Philosophy: http://plato. stanford. edu/entries/compatibilism/ Nahmias, E. , Stephen, M. , Nadelhoffer, T. , & Turner, J. (2005, October). Surverying Freedom: Folk Intuitions about Free Will and Moral Responsibility. Philosophical Psychology, 18(5), 561 ââ¬â 584.
Tuesday, October 22, 2019
Counseling essays
Counseling essays Jane appears to suffer from a number of personality disorders due to her family situation. Her parents and her siblings all appear, both to her and to the world in general, to find success without effort. Their physical attributes furthermore contribute, or seem to contribute, and to work in concomitant with their drive towards success. In other words; they are driven because they are beautiful and therefore attain success; and their beauty gives them drive. When any of Janes four family members therefore attempt something new, success is almost inevitable. Not being endowed with the same physical beauty of her parents or siblings, it is to be expected that Jane would feel somewhat left behind by the success that her family achieved. Expecting the same level of success from Jane as from their other children, Janes parents achieve the opposite by giving her negative feedback. Rather than being supportive, they are abrasive even when Jane tries her best to reach their seemingly i mpossible demands for success. As her therapist, I have therefore chosen the person-centered paradigm of therapy. I believe that this type of therapy will help Jane not only to begin taking responsibility for her own life, but also to feel less powerless and guilty in doing so. This therapy is best for Jane particularly, as I do believe that she has a vast well of untapped potential, which her parents are unable to unlock. Janes parents are used to success coming easily, and they may therefore be expected to regard Jane in the same light as the other siblings. Jane is however not the same type of person with the same talents as they are. She needs encouragement in order to pursue her own passions and talents, and to become a person in her own right. This is what I will attempt to help her with by using person-centered therapy. In terms of background, person-centered therapy was developed by Carl Rogers during the 1930s. The mo...
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