Substantial Problems on Industrialization

At the turn of the century, a spirit of reform known as progressivism took hold of many American people. Less a united movement than a loose gathering of casual and improbable alliances, progressivism targeted the massive problems of an urban, industrialized nation. In spite of resistance, progressives were able to redefine government†s role in American life, make a serious run for the White House, and ratify such lasting reforms. In the nightfall of the 1800†³s, many citizens could see that existing efforts to solve the substantial problems of industrialization were failing. The 1880†³s and 1890†³s were filled with lively debates about how to reform society. The ideas of journalists Henry George and Edward Bellamy were among the most popular. In 1879 Henry George had written a book Progress and Poverty in an effort to explain why an advanced civilization seemed to increase rather than eliminate poverty. George proposed to solve this problem by ending taxes on improvements on land, such as housing and cultivation. George proposed just a single tax – on the value of land itself. Such a tax would make a speculation in land less attractive by increasing the cost of holding land without using it. In 1888 newspaper editor Edward Bellamy published a novel called Looking Backward. Incorporated into the novel was the story of a man being hypnotized and waking up in the year 2000. All of the harsh working conditions, social class set backs, and political corruption that existed in 1887 no longer existed. The reason for such a change was that government had nationalized the great trusts and organized industrial management. Socialists, unionists, and city government reformers also had many followers. Progressives realized that the nation†s free enterprise system often could be unfair, but they did not want to lose the high standard of living and personal liberty it had given them, and they deeply feared the violence of revolution. Thus, progressives were faced with the question of how to preserve what was good about the United States while reforming the bad. In order to protect vulnerable citizens, progressives accepted an increased level of government control over areas once considered private, such as housing and healthcare. Florence Kelley became a leader in the search for answers. She soon became a resident in Jane Addams† Hull House in Chicago. Largely through her efforts, in 1893 Illinois passed a law prohibiting child labor, limiting working hours for women, and regulating sweatshop conditions. In 1954 Supreme Court justice Felix Frankfurter said that Florence Kelley â€Å"had probably the largest share in shaping the social history of the United States during the first thirty years of this century. † Driven by the mounting tide of public demand, an inundation of progressive reform programs flowed through local, state, and federal legislatures. Targets for the proposed reforms included politics, society, and the economy. Some reform mayors led movements for city – supported welfare services. Hazen Pingree provided public baths, parks, and, to combat the 1893 depression, a work relief program. â€Å"Golden Rule† Jones opened playgrounds and free kindergartens and built lodging houses for the homeless. â€Å"Nobody has the right to rule anybody else,† he once said. He thought all people would be good if social conditions were good. Progressive governors and state legislators also were active. Governors Robert LaFollette in Wisconsin and Hiram Johnson in California introduced reforms to make government more efficient and responsive to voters. Progressivism appeared at the federal level in labor and industrial relations, in the regulation of business and commerce. By the time Theodore Roosevelt completed his second term in 1909, the government had filed forty – two antitrust actions. The beef trust, Standard Oil, and the American Tobacco Company were either broken up or forced to reorganize. Roosevelt was not antibusiness. He did not wish to destroy trusts he deemed â€Å"good,† or not harmful to the public, he just felt they should be supervised and controlled. The progressive era also gave way to they sixteenth and seventeenth amendments. The sixteenth amendment allowed government to raise more revenue from wealthy people†s income and less from tariffs that hurt the working poor. The seventeenth amendment took the election of senators out of the hands of legislature; voters were thus allowed to play a more direct role in government. By the mid – 1910†³s, progressives could take pride in the many changes they had helped bring about, such as redefining the role of government in business and politics. Some reformers included Henry George, Edward Bellamy, Florence Kelley, and the nation separated as local, state, and federal. The beginning of the war in Europe brought about the end of the progressive era in 1914, by the end of 1916 the reform period of the United States had sputtered out.

The Manual Transmission System Engineering Essay

In this study, I am traveling to compare and contrast the difference between Toyota 5 velocity manual gear box transmittal and Toyota 5 velocity automatic transmittal system.2. History of the transmittalIn 1894 Louis-Rene Panhard and Emile Levassor invented the modern transmittal. Today we still use the same construct since it was introduced. The construct is still the same that the crankshaft connects from the engine to the transmittal shaft through clasp. The latter is mounted to cogwheels which control and run the transmittal of the gesture that is coming from the engine to the wheels. Few experiments have been done about type and Numberss of cogwheels but still until today the same construct is applied. To do it easier for the driver to command velocity and with aid of cogwheels, synchromesh cogwheels and a unrecorded rear axle were invented. Alternatively of holding cogwheels engage and disengage once more from each other, a auto transmittal that had cogwheels and uninterrupted with each other was introduced, all the cogwheels were traveling and the Canis familiaris clasp was designed in order to link the cogwheels that are caused to revolve by engine and travel the wheels frontward. Different cogwheels with different sizes are designed to increase or diminish the impulse of the vehicle. The most popular transmittals were 4 velocity transmittals which its top cogwheel ( 4th ) had a ratio of 1:1 while other cogwheels had lower ratios. Then, applied scientists came with a fifth cogwheel in which will increase the ratio by 1 between the engine revolutions per minute and the wheel revolutions per minute that is known as overdrive. American discoverers Harold Sinclair and Richard Spikes designed automatic transmittal while German discoverers invented the automatic transmittal fundamental design. While General Motors provided automatic transmittal in all of their autos that were manufactured from 1938 and by the terminal of 1940s most of the auto manufactures offered at least one transmittal in their theoretical accounts. Electric autos besides fitted with electric auto transmittal. Now the market for automatic transmittal is immense and most autos are manufactured with it ( Car transmittal, 2006 )3. Automatic transmittal systemThis is the type of transmittal that is capable of altering the gear ratios automatically while the vehicle is traveling without the demand of the driver to manually alter the cogwheel utilizing the gear stick. The chief intent of the transmittal is to supply the undermentioned result: Impersonal – to maintain the engine running without the cogwheel, or traveling the vehicle. Lower cogwheels – for taking off intent and for operating in heavier state of affairs. Higher cogwheels – for cruising, higher velocity and lighter weight Reverse gear – to travel the vehicle backwards. Transfering the drive torsion to the needed wheels ( Crolla, D, 2009, P, 109 ) The automatic transmittal comes into two different types. The front wheel thrusts vehicles that are designed more compact than rear wheel thrust vehicle ‘s transmittals that are usually connected in the engine compartment in which they are known as transaxle. Both of these types of transmittal do the same occupation and same design of the planetal cogwheel train. The indispensable portion for the front wheel drive transmittal is differential, while the rear wheel thrust transmittal has externally mounted derived function which is uses the thrust shaft to associate up with the transmittal. The automatic transmittal system contains few major constituents. These are: Planetal cogwheel unit Torque convertor Hydraulic control unit Sealing waxs and gasket Computer Governor/ modulator The above six constituents perform assorted responsibilities in transmittal as explained below ( Toyota proficient preparation ) .Planetal gear unit:The intent of planetal gear unit is to supply and altering different gear ratios. By and large, the planetal cogwheel unit contains three major parts. These are pealing cogwheel, interior cogwheel ( sun cogwheel ) and planetal bearer that carries three or four cogwheels which are between the interior cogwheel and outer ring cogwheel.Planetal cogwheel unitWhen one portion of the planetal cogwheel connects to the input shaft which leads to the engine, the 2nd portion is held still and the 3rd portion normally attached to the end product shaft. It all depends on which portion stays still, which one is the input or end product because it will ensue in different gear ratios. Thingss such as brake sets, hydraulic clasp battalions and one manner clasps are used in the planetal cogwheel to command the power flow. Every cogwheel links up to a com bination of clasp battalions and bake sets being engaged or disengaged ( Samarins.com )Torque convertorIs a unstable type yoke, that lets the engine to revolve freely without the aid from the transmittal, if the engine is running easy, tick overing or on the halt traffic, there is a little sum of torsion that is passed via torsion convertor, less force per unit area is besides required on the brake pedal to maintain the auto stationary. Besides when you put more force per unit area on the gas pedal, it speeds up and adds more fluid into the torsion convertor which causes the wheels to have more torsion. The torsion convertor lodging contains five major constituents. Pump is fixed to lodging, turbine that is connected through end product shaft to transmittal, stator has end product that is connected to fixed shaft in transmittal, fluid and convertor clasp. This lodging is attached to the engine ‘s flywheel and rotates and at any velocity that the engine is whirling. The torsion convertor besides has pumps that is made up of fives and are attached to the lodging that uses the same velocity as engine to turn. Centrifugal type pump is used inside the torsion convertor, as it rotates it causes the fluid to be thrown outside and this action creates the vacuity that draws a batch of fluid in at the Centre. Once the fluid arrives in the blades of the turbine, the transmittal begins to revolve and this causes the auto to travel, the turbine ‘s blades are curved and this makes the fluid that is coming from the exterior to travel into different manner before it goes to the Centre of the turbine, this changing of way is the 1 that causes the turbine to whirl. In other manner we can set that both turbine and the fluid spin in different way and this creates the force as an result. This fluid that exists from the turbine is normally traveling into different way as the pump and engine bend, because if the fluid hits the pump straight, it may do the engine to blow power or decelerate it down and that is why there is a stator in the torsion convertor ( Builders transmittal and used auto Inc. ) .Hy draulic control unit:A transmittal fluid is sent utilizing the engine oil pump that controls the public presentation of the auto clasps that helps the planetal cogwheel sets to work swimmingly.Sealing waxs and gasketTheir work is to back up and keep the right topographic point of the engine oil and halt it from leaking outside.Governor / ModulatorThis controls and proctors throttle place and the velocity of the auto to find when to alter the cogwheels.ComputerThis is the major unit that uses detectors to command all the activities such as engine velocity, engine burden, throttle place, brake pedal place etc. ( Carazoo, 2010 )4. MaterialsThe stuffs that are used to construct clasp or transmittal have to defy heat, clash, lasting, strong, difficult and tough. These stuffs are organic, Kevlar, segmented Kevlar, intercrossed C, ceramic and sintered Fe ( UUC Motorwerks, 2003 )5. Advantages of automatic transmittal systemThe torsion convertor gives more engine torsions and reduces the str ain and the daze of the full thrust line. A lock up clasp is included in the latest automatic transmittal, this helps in maximising the fuel economic system because of its direct mechanical linkage from the engine to the transmittal. A vehicle with automatic transmittal is really comfy and easy to drive as the driver does non necessitate to manually alter the gear ratios. Automatic transmittal can besides be powerful and strong because of the agreement of the Sun cogwheel and ring cogwheel, this addition the cogwheel ‘s contacts that reduces the cogwheel ‘s breakage and supplies more torsion on large country ( Rowe, R. 2010 )6. Disadvantages of automatic transmittalSince the automatic transmittal is made up of several constituents, the chief reverse can happen when individual portion interruptions down working and this can do a transmittal to halt working, as a consequence maintaining or repairing it can be really expensive. Besides the entire velocity of the vehicle is controlled by the computing machine that manages the transmittal, and the driver can lose the acceleration beyond a certain velocity. Automatic transmittal can overheat easy.7. Manual transmittal systemThis is the type of transmittal in which the driver has to manually alter the cogwheel ratio scene by utilizing the cogwheel stick inside the auto. There are two types of manual transmittals. The changeless mesh design and the sliding cogwheel type. The sliding-gear type, no portion is turning inside the transmittal instance except the chief thrust cogwheel and bunch cogwheel when the transmittal is in impersonal. In order to engage the cogwheels and use engine power to travel the vehicle, the driver pushes the clasp pedal and moves the displacement boss, which shifts a linkage and forks to skid a cogwheel along the chief shaft that is connected directly above the bunch. Once the cogwheels are meshed, the clasp pedal is released and the power from the engine is sent to the thrust wheels. There can be different cogwheels on the chief shaft of different diameters and tooth counts, and the transmittal displacement linkage is designed so the driver has to unmesh one cogwheel before being able to engage another. With these older transmittals, gear clang is a job because the cogwheels are all revolving at different velocity ( Cook, M. 2009 ) The 5 velocity manual transmittal cogwheel box has a three plane agreement order with contrary cogwheel alongside 5th cogwheel and uses a particular fluid to run. Traveling forks are attached to three broad base tracks that work in ordered bushing for less clash, these traveling levers are connected together to the shifting overseas telegrams. Every one of them uses different manner with selected lever and this creates less switching attempts for a driver, it besides avoids to by chance prosecuting the contrary cogwheel from 5th because of the manner it is designed to run, it shifts the crossing over lever into three to four cogwheel without thronging or binding. The displacement boss is normally used to command the gear ratios. The forward cogwheel ratios are synchronized utilizing great capacity double cone brass ( 1st and 2nd ) and other cogwheels are synchronized with paper clash stuffs which is more strong and clang resistant than brass. The input shaft uses paper stuffs synchroscopes, by cutting revolving inactiveness it helps to cut down the shifting attempt. A rearward battle clang can be minimised by utilizing a brake mechanism. The needle roller bearings are fixed to cut down clash and extend gear life. The instance itself is cast in merely two pieces to cut down leak waies ; structural ribs strengthen and indurate the instance to cut down noise and quiver with little or no excess weight. The instance has good bending stiffness, offering a natural frequence above the exciting frequence of the engine at peak revolutions per minute ( Massey, K. 2010 )8. Clasp systemA manual transmittal system will non work without a clasp. This is the mechanism that is used for conveying rotary motion that can be engaged and disengaged. This is controlled by the driver who uses a particular release mechanism to command the motion of the torsion between them.The clasp assemblyA individual phonograph record clasp assembly contains four major parts: the rear face of the flywheel- a drive member the clasp disc- the goaded member the force per unit area home base assembly-a drive member the release mechanism-disengages and engages the clasp ( May, E. 2004. p,250 )8.1 Types of claspsMultidisc clasp that contain two or more phonograph records are normally used in automatic transmittal, motor rhythms and heavy mechanical equipment. While the manual transmittal is operated utilizing a dry clasp and there is no lubrication between surfaces. The automatic transmittal clasp operates wet, it is enclosed in the transmittal instance that is full of lubrication fluid. By and large, in automatic transmittal there is no clasp pedal and a gear displacement ( Roymech, 2010 ) ( Genta & A ; Morello, 2009 P, 425 ) There are so many different types of clasps such as cone clasps, wet clasps and dry clasps but the common one uses one or more clash phonograph record that are pushed really tight together or against the fly wheel utilizing a spring. A Clasp contains two revolving shafts, one is operated utilizing block and the other one uses a different method, these two shafts are connected together by the clasp so that they can be locked together and revolving at the same clip while it engages, or be decoupled and rotate at different velocity while it disengages. The input shaft is used at the Centre of the force per unit area to prosecute the splines of the clash phonograph record hub. The clasp and flywheel assembly whirling as one unit when the engine is revolving. The flywheel is having the torsion from the engine, uses the clash that is happening from the clasp phonograph record to the spline hub into the transmittal. When the clasp pedal is moved, it manages and controls the motion of the to rsion between two units. The force per unit area home base can be retracted against the springs force and frees the phonograph record from its clamping action by dejecting the pedal. These two units and clamping force can be connected once more by let go ofing the pedal one time once more. This is a really of import mechanism when: Prosecuting the transmittal into cogwheel, the input shaft from the transmittal must be disengaged from the engine. The pedal is released easy, it provides a gradual battle of the thrust, as the facings faux pass of the clash faux pas, and this lets the torsion to be applied continuously until these two units are connected really tightly. Choosing different ratio, altering cogwheels when the vehicle is traveling, for this to go on, the engine torsion from the transmittal must be interrupted. The disengaged of the transmittal that causes the vehicle to halt and allow the engine tally at tick overing velocity. The co-efficient of clash between the clash facings and their coupling surfaces, the entire spring force and the sum of facings in contact can make up one's mind the torsion that is transferred by the clasp. If you want to increase the torque capacity, the diameter of the clasp needs to be increased and this will do the spring force to increase. Multi home base clasp can be made by holding two or more clasp home bases every bit good as increasing the figure of facings and torque capacity. They are utile where by cut downing the diameter is good or where by increasing the spring strength is unwanted. ( CDX online eTextbook ) .9. Advantages of manual transmittal systemThe manual transmittal vehicles are normally cheaper and good in care comparison to the automatic 1s, this is because altering of the fluid can be really less, besides when it breaks down it is more than probably that the clasp needs to be replaced and this can salvage you a batch from purchasing a new or 2nd manus transm ittal. It gives better control because of the faster displacement response, this is chiefly due to the bad conditions. They can every bit good be good in braking because the driver is non contending the attempt of the automatic transmittal to travel frontward. It can be good is footings of fuel economic system because you can switch the cogwheel into impersonal and avoiding drive in lower cogwheels. A skilled driver at switching cogwheels will hold a better grip in snowy, muddy or slippery conditions and might every bit good be easier to acquire of the unsafe state of affairs than automatic 1. Manual transmittal is besides lighter in weight. And there is a fun point of position in driving manual because it keeps you active and keeps you cognizant of what is traveling on around you ( Moore, S. 2010 )10. Disadvantages of manual transmittal systemDriving manual auto in traffic can be really pain full particularly when there is a stop start drive, automatic autos are more comfy in this instance. It is really improbable to happen a manual transmittal auto with a sail control. Most auto now are built in automatic transmittal so there is less handiness of autos with manual transmittal every bit good as the troubles in larning how to drive manual transmittal autos.11. Report SummaryThis has been a successful study and I have researched a batch of information about this subject. Indeed I have acquired a batch transmittal system. Here are some few pointed aligned below: History of the transmittal What is automatic transmittal system Major constituents of the automatic transmittal and how they work Advantages and disadvantages of automatic transmittal system What is manual transmittal system Clasp assembly and clasp constituents and how they work Advantages and disadvantages of manual transmittal system12. DecisionsHarmonizing to my apprehension in the study, it shows the chief difference between automatic transmittal and manual transmittal is that automatic transmittal uses torque convertor to make power while manual transmittal uses clasp to prosecute and withdraw the cogwheels. Besides automatic autos are in really high demanding since most of the constituents are controlled by computing machines now in the auto. It besides shows that one time the automatic transmittal breaks it can be really difficult and complicated to repair it and this may stop up in replacing the whole transmittal. In footings of manual cogwheel box, the study shows they are really hard to interrupt or decease every bit good as less care excessively, this is one of the best things in manual transmittal because it can last for long clip without anything happen. From my point of position I would ever urge to travel for manual auto if you enjoy the cogwheel altering ration as I do.

A Simulation Of Sustainability In Urban Environments Environmental Sciences Essay

( Parkin et al. 2003 ) Sustainability is frequently symbolised utilizing three over lapping circles ( fig 1 ) , stand foring the three facets of sustainability ( society, economic system and environment ) . However this simple diagram over simplifies the complex interactions which occur between the facets and the big figure of indexs which are used to mensurate our impact. Unless these complex interactions are clearly understood by all the stakeholders it would be impossible to to the full measure the sustainability of any development ( Foxon et al. 2002 ) . A figure of determination support tools have been created to help determination shapers in accomplishing sustainable urban developments. There has been immense attempt and resources put into making DSTs, yet despite this most are seldom used due to either the complexness of their operation or the complexness of their end product ( Isaacs et al. 2007 ) . It is hence believed that there is a demand for new determination support too ls that can cover with the complexness of urban design and which go beyond the proficient orientation of old tools ( Sahota A ; Jeffery 2005 ) to enable a robust appraisal of sustainability within the decision-making procedures. Visual image has been used to help determination devising in a figure of Fieldss including increasing the safety and effectivity of oil boring in the oil and gas industry ( Evans et al. 2002 ) , visualizing medical informations ( Fuchs et al. 1989 ) and battlefield simulations ( Hix et al. 1999 ) . Geographic Information systems are presently the most extensively used visual image platform for determination devising. â€Å" GIS is now a standard point in contrivers ‘ tool kits † ( Drummond A ; Gallic 2008 ) and there are many illustrations its usage in urban planning and determination devising over the last 20 old ages ( Harris A ; Elmes 1993 ; Stevens et Al. 2007 ; States 2000 ; Shiffer 1998 ; Lodha A ; Verma 2000 ) . Traditionally GIS provides the user with a synergistic information researching interface which allows them to cover a figure of different maps onto a 2D surface and allows the user to carry on complex geospatial analysis ( Salter et al. 2009 ) . However it has been shown ( Lowe 2004 ; Lowe 2003 ) that many non-expert stakeholders have great trouble in decoding and understanding scientific shows and maps. Due to its complexness and high acquisition curve GIS requires the user â€Å" to believe like a geographic information scientist † ( Clarke 2001 ) and is still considered to be a hard to utilize, adept tool ( Traynor A ; Williams 1995 ) . Its usage in determination devising has made it hard for non expert stakeholders, particularly the general populace, to take part to the full in be aftering determinations ( Salter et al. 2009 ; Al-Kodmany 2002 ) . Most GIS systems are purely 2D, covering with geospatial informations being draped over a map or other geographical representation. While experts can imagine the ocular impact of a proposed development from this program view it is really hard for person non trained in the usage of GIS to make this. This can take to non-expert stakeholder non to the full understanding the effects of the determinations being made and go forth them with an unintended positive or negative position of the planned development ( Danahy et al. 1999 ) . 3D representations nevertheless allow users to rapidly recognize the spacial context of the determination and besides to orientate their position of the proposed development ( Danahy et al. 1999 ) . Peoples develop the ability to voyage and visually process 3D representations of urban environments on a bomber witting degree throughout their lives as they walk through existent universe metropoliss ( Charters et al. 2002 ) . This sub witting ability means that t he user will non hold to work to visualize the development but can concentrate on the determination, and the effects of the determination, being made. SCITY VT S-City VT ( sustainable metropolis visual image tool ) is a paradigm determination support application that is designed to let a wider scope of stakeholders input into the sustainability planning procedure by leting the stakeholders to compare different scenarios utilizing a usage designed simulation and visual image engine. Figure 1: Visual image techniques used in S-City VT The visual image engine utilises a split screen rendering attack which allows the user, utilizing any of the techniques, to compare two scenarios side by side throughout the life rhythm of the development. A figure of visual image techniques have been used to expose the consequences of the implicit in simulation engine which allows the user to non merely compare the external visual aspect of the different scenarios but besides the comparative sustainability of each scenario. As already discussed traditional GIS does non supply a realistic physical representation of the metropolis or development being studied. CAD system do enable the creative activity of 3D theoretical accounts which provide the user with a realistic representation of the edifices and the developments ( Al-Kodmany 2002 ) , nevertheless CAD systems provide no ability to cover extra informations and supply small context out with the edifice or country being studied. The visual image engine combines GIS and 3D urban theoretical accounts and embeds the 3D theoretical accounts in the environing landscape to contextualise the urban country that is undergoing sustainability appraisal. The ability to visualize portion of the metropolis that is undergoing the development or regeneration within the wider metropolis context is likely to better battle with the communicating tool and convey a greater degree of engagement from all participants in the planning procedure ( Levy 1995 ) Fig 4: 3D representation of proposed development within the city-wide context. The usage engine allows the user to hold synergistic control enabling the user to see the proposed development from any imaginable point of view. This allows the user to go to the full immersed in the proposed development, to a much greater grade than 2D programs, GIS, or rendered 3D stills. As has already been shown ( Isaacs et al. 2010a ) S City VT provides the user with a feasible representation of the existent development. Design to Virtual Reality Blending Fig 5: Overview of the index blending technique The blending technique, as shown in figure 5, merely takes the all the sustainability steps for each index, calculated by the bomber system and ANP theoretical accounts, unite them into a individual value. This valued is so mapped to a individual coloring material graduated table. The coloring material graduated table used can be selected from a figure of color graduated tables known for their discriminating abilities ( Levkowitz A ; Herman 1992 ) these include the het object, magenta, local optimised, and spectral. Using the hot-cold graduated table demonstrated in figure 5 a edifice or floor with high comparative sustainability would look blue while a edifice with low sustainability would look ruddy. This method gives a individual index of sustainability and provides the easiest manner of comparing the comparative sustainability of different options or scenarios. Weaving Fig 6: Overview of the index weaving technique Whilst the blending technique, combines the index values, the weaving technique ( figure 6 ) efforts to continue some of the implicit in information so that the user can still place which indexs or bunch are doing the greatest consequence ( negative or positive ) on the sustainability of the edifice. The coloring material weaving technique ( Hagh-Shenas et al. 2007 ) uses a different coloring material graduated table for each index ( figure 6 ) to try to continue this information. The colors from each graduated table are so indiscriminately weaved into a hodgepodge like texture which is applied to each floor of the edifice. The size of the squares or spots in the weave can besides be changed depending on the user ‘s penchants. A little spot size will give an overall representation of the sustainability, with darker sunglassess stand foring low sustainability and lighter sunglassess stand foring higher sustainability. A larger spot size will let user to place rapidly which colou rs stand out the most, and hence which indexs are holding the greatest impact. Traditional Graphical Techniques Radar graphs, figure 7, let the stakeholder to compare the sustainability of different edifices based on the index values. The form, size, coloring material and point values will be different for each edifice leting a elaborate comparing. Fig7: Comparision of scenarios utilizing traditional radio detection and ranging graphs and coloring material weaving. Parallel coordinates allow the user to compare all index values for all the edifices in a scenario ( fihure 8 ) . Buildings can be selected and their hint in the graph is highlighted. The colors in the graph correspond to those in the blending technique. Fig 8: Parallel co-ordinate graph for sample development. Simple temporal graphs secret plan the all the index values over the life clip of the development. These allow the user to place the interconnectivity of the indexs and to place where and why sudden alterations occur ( figure 9 ) . Fig 9: Index graph demoing alterations in 6 indexs over clip. Real Time Simulation The index patterning involves developing bomber theoretical accounts that define how each of the indexs vary over infinite and clip. The S-City VT application is built utilizing a modular model supplying flexibleness and leting index theoretical accounts to be changed. For the paradigm application six sustainability index theoretical accounts ( credence, lodging proviso, energy efficiency, noise pollution, employment and economic benefit ) have been developed four of which are described below: Energy Efficiency The energy efficiency theoretical account is based on the Nation Calculation Method ( NCM ) which is the industry criterion leting energy efficiency of edifices to be determined ( BRE 2009 ) . The NCM method takes into history a broad scope of factors, including figure of room accesss, Windowss glazing type, exterior building, figure of floors etc, to bring forth a metric depicting the energy efficiency the edifice. A NCM study was developed utilizing the NCM tool, stand foring the typical edifices in the development for a figure of different options including external visual aspect and different mixes of edifice usage. Fig2: Graph demoing temporal alterations in sustainability index due monthly energy fluctuations. This information is input to the energy efficiency theoretical account and attenuated with the temporal energy ingestion informations ( BIS 2009 ) which reflects how the energy usage of the edifices change depending on the clip of twelvemonth. ( fig 2 ) shows how the sustainability index alterations as a map of clip for a 2 different constructing types with different utilizations ( glass, commercial and brick, residential ) . Noise Pollution The noise theoretical account calculates the degrees of traffic noise geting at each edifice and can besides cipher the proportion of people that will happen certain degrees of noise a nuisance. Datas about the jutting traffic flows for the waterfront development were sourced from Dundee metropolis councils Dundee Waterfront Traffic A ; Signing Report ( White Young Green 2007 ) . For each route in the proposed development a noise degree is calculated utilizing its projected hourly traffic flow. Using a map provided in CRT ( 1988 ) , ( equation 1 ) this traffic flow can be transformed into a noise degree which corresponds to how loud, in dBs ( dubnium ( A ) ) , the traffic noise is if the hearer were standing about 10 meters off from the route side. equation 1 A noise degree associated at each edifice based on the traffic volume is calculated based on the shortest distance ( vitamin D ) between the noise beginning ( route ) and the edifice utilizing Euclidean geometry. The sound degree emanating from each route is obtained by rectifying the basic noise degree utilizing equation 2. The equation besides includes the tallness ( H ) of the hearer which is changeless in these computations. ( CRTN 1988 ) equation 2 To find the entire noise degree received by the edifice the corrected noise from each route must be summed over n roads in the development ( equation 3 ) equation 3 Each edifice will now hold a noise degree value stand foring the entire degree of noise associated with that edifices location in relation to the roads and their projected traffic flows. Our sustainability step is achieved by normalizing the noise degree ( 0-100 graduated table as before ) and using a non additive map ( equation 4 ( Highways Agency 1994 ) ) , this calculates the per centum of people that will be bothered by a specific degree of noise. equation 4 Economic Benefit The economic theoretical account utilises a discounted hard currency flow computation to find the worth of a edifices current hard currency flow for a specific point in clip. The computation uses a price reduction rate which allows the hard currency flows to be discounted back to their present worth. equation 5 Where CF = hard currency flow for that twelvemonth. R = price reduction rate for that twelvemonth. t = the twelvemonth. In the equation the capital cost for the building of the first edifice is represented by CF0. Capital costs of subsequent edifices will be discounted to this point clip. e.g. the capital cost of a edifice built two old ages after the initial edifice would be discounted utilizing. Each edifice in the simulation has a site readying and building stage, during this clip the hard currency flow in for that period is taken every bit 0 as the edifice would non yet be sold or rented. The simulation is able to reflect the differences between hard currency flows for rented and sold edifices. Buildings which are sold will take a big income at the point of sale. As the edifice has been sold farther hard currency flows for this edifice will be 0. The price reduction factor will besides use to the sale income so for two edifices of tantamount value, a edifice sold in twelvemonth one will hold a higher present value than constructing sold in twelvemonth 10. As the edifice has been sold the upkeep and care of the edifice will be borne by the purchaser and so it non modelled here. Buildings which are rented will take a smaller income every twelvemonth. Rented edifices may hold a rent free period, to promote renters, and will hold a laic period between rentals, during these tim es the hard currency flow for that period will be 0. A price reduction factor is applied to the annual income to find its present value, once more based on the building twelvemonth of the first building.. Fig 3: PV for a individual edifice, built in twelvemonth 0, demoing differences between leased and sold income with different price reduction rates. The initial cost of the edifices are calculated utilizing the edifice type ( e.g. residential, commercial, retail, societal ) and the cost per square meter for that type of edifice. The income from sale or rent is similarly calculated utilizing the jutting income for that type of edifice. These values were sourced from the SET economic study on the waterfront development ( Buchanan 2006 ) . The maximal and minimal valleies are so mapped onto 0 100 and linearly interpolated. Credence Acceptance corresponds to the credence of possible edifice utilizations within the development. The masterplan for Dundee has been developed and it was possible through treatment with Dundee council to find the possible edifice utilizations which are under reappraisal and included commercial office infinite, retail units, cafe/bar/restaurant and residential infinite. The edifice usage study used a superior system where the participant was asked to rank possible edifice utilizations in order of penchant. If the participant had no penchant between the edifice uses at each rank the proportions chosen at each rank would be equal. To find if this is the instance Friedman trial was performed utilizing SPSS on the average rank of each edifice usage, with the void hypothesis being that the average ranks will be equal. Ranks Mean Rank Commercial 3.37 Retail 2.51 Leisure 1.54 Residential 2.58 Test Statistics a Sample Size 106 Chi-Square 107.264 df 3 Significance. .000 a. Friedman Test The consequences of the Friedman trial show that there is a important difference ( p lt ; 0.001 ) between how the users ranked the different edifice utilizations. Combined with post-hoc analysis of the consequences it is possible to pattern the acceptableness edifice uses in the undermentioned order ; Leisure ( highest ranked ) , Retail A ; Residential ( equal ranked ) and Commercial ( Lowest Ranked ) . To make a sustainability index for the acceptableness of each edifice these rankings are mapped onto a 0-100 graduated table, with Leisure at 100 ( highest sustainability ) , Retail A ; Residential at 50 and Commercial ( lowest sustainability ) at 0. MULTICRITERIA OPINION ANALYSIS One of the jobs with traditional sustainability appraisal is affecting the positions and experiences of a broad scope of stakeholders ( ( Isaacs et al. 2010b ) , . Many of the traditional methods of aggregating index values, such as Multi Attribute Utility Theory ( MAUT ) , lack transparence go forthing the users in a place where they do non to the full understand how the resulting weightings have been derived ( Dodgson et al. 2009 ; Paracchini et Al. 2008 ) . The Analytic Network Process ( ANP ) method uses synergistic web constructions which give a more holistic representation of the overall job ( Saaty 2006 ) . Components of the job are connected, as appropriate, in braces with directed lines imitating the influence of one constituent over another. The constituents in a web may besides be regarded as elements that interact and influence each other in respect to a specific property. ( Saaty 2006 ) . To execute a ANP analysis the determination shaper must place the web through analysis of the job to be solved. The determination shaper must place the bunchs, elements and the relationships and interactions between them ( Bottero et al. 2007 ) . Once the determination shaper has constructed the web to be analysed they must now make a supermatrix depicting the interactions defined in the theoretical account ( Gencer and Gurpinar 2007 ) . The supermatrix is created utilizing the cardinal graduated table and pair-wise method every interaction is described in footings of every component it interacts with ( Saaty 1999 ) . Once this has been completed the normalised eigenvector calculated from the matrix will give the determination shaper the normalised prioritised list of elements. ANP allows cross-cluster interactions every bit good as inter-relationships between elements.. It is structured of course and allows for a more realistic representation of the job, but its chief strength lies in supplying the user with the ability to include their ain personal cognition and sentiments about an interaction through the usage of pair-wise comparings ( Saaty 2006, ; Bottero et Al. 2007 ) . The prioritised list of elements which are derived from the ANP analysis are used in the 3D visual image to supply the user with a individual of sustainability index if required. Al-Kodmany, K. ( 2002 ) Visual image tools and methods in community planning: from freehand studies to practical world. Journal of be aftering Literature, 17 ( 2 ) , p. 189. Available at: hypertext transfer protocol: //jpl.sagepub.com/cgi/content/abstract/17/2/189. BIS ( 2009 ) Energy Consumption in the UK. Available at: hypertext transfer protocol: //bis.ecgroup.net/Publications/EnergyClimateChangeDECC/EnergyStatistics.aspx. BRE ( 2009 ) National Calculation Method, Available at: hypertext transfer protocol: //www.ncm.bre.co.uk/ . Buchanan, C. ( 2006 ) Dundee Central Waterfront: Market Appraisal and Economic Impact Assessment. , 1. CRTN ( 1988 ) Calculation of Road Traffic Noise Department Of Transport, London: HMSO. Charters, S.M. , Knight, C. , Thomas, N. A ; Munro, M. ( 2002 ) Visual image for informed determination devising ; from codification to constituents. In ACM New York, NY, USA, pp. 765-772. Clarke, K.C. ( 2001 ) Geting started with geographic information systems, Prentice Hall Upper Saddle River, NJ. Danahy, J. , Spiller, R. A ; Verlag, W. ( 1999 ) Visualization Data Needs in Urban Environmental Planning and Design. Landscape Research. Available at: hypertext transfer protocol: //citeseerx.ist.psu.edu/viewdoc/summary? doi=10.1.1.3.9259. Dodgson, J. , Spackman, M. , Pearman, A. A ; Phillips, L. ( 2009 ) Multi-criteria analysis: a manual, London: Department for Communities and Local Government. Drummond, W. A ; French, S. ( 2008 ) The Future of GIS in Planning: Converging Technologies and Diverging Interests. Journal of the American Planning Association, 74 ( 2 ) , pp. 161-174. Available at: hypertext transfer protocol: //www.informaworld.com/openurl? genre=article A ; doi=10.1080/01944360801982146 A ; magic=crossref||D404A21C5BB053405B1A640AFFD44AE3. Evans, F. , Volz, W. , Dorn, G. , Frohlich, B. A ; Roberts, D.M. ( 2002 ) Future trends in oil and gas visual image. In VIS ’02: Proceedings of the conference on Visualization ’02. Washington, DC, USA: IEEE Computer Society, pp. 567-570. Foxon, T. , McIlkenny, G. , Gilmour, D. , Oltean-Dumbrava, C. , Souter, N. , Ashley, R. , Butler, D. , Pearson, P. , Jowitt, P. A ; Moir, J. ( 2002 ) Sustainability standards for determination support in the UK H2O industry. Journal of Environmental Planning and Management, 45 ( 2 ) , p. 285-301. Available at: hypertext transfer protocol: //www.ingentaconnect.com/content/routledg/cjep/2002/00000045/00000002/art00007. Fuchs, H. , Levoy, M. A ; Pizer, S.M. ( 1989 ) Interactive visual image of 3D medical informations. Computer, 22 ( 8 ) , pp. 46-51. Hagh-Shenas, H. , Kim, S. , Interrante, V. A ; Healey, C. ( 2007 ) Weaving versus blending: a quantitative appraisal of the information transporting capacities of two alternate methods for conveying multivariate informations with colour. IEEE minutess on visual image and computing machine artworks, 13 ( 6 ) , pp. 1270-7. Available at: hypertext transfer protocol: //www.ncbi.nlm.nih.gov/pubmed/17968074. Harris, T. A ; Elmes, G. ( 1993 ) The application of GIS in urban and regional planning: a reappraisal of the North American experience. Applied Geography, pp. 9-27. Available at: hypertext transfer protocol: //linkinghub.elsevier.com/retrieve/pii/014362289390077E. Highways Agency ( 1994 ) Design Manual for Roads and Bridges. Volume, 11 ( August ) . Available at: hypertext transfer protocol: //scholar.google.com/scholar? hl=en A ; btnG=Search A ; q=intitle: DESIGN+MANUAL+FOR+ROADS+AND+BRIDGES # 3. Hix, D. , Swan, J. , Gabbard, J. , McGee, M. , Durbin, J. A ; King, T. ( 1999 ) User-centered design and rating of a real-time battleground visual image practical environment. Proceedings IEEE Virtual Reality ( Cat. No. 99CB36316 ) ( Figure 1 ) , pp. 96-103. Available at: hypertext transfer protocol: //ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm? arnumber=756939. Isaacs, J. , Blackwood, D. , Falconer, R. A ; Gilmour, D. ( 2007 ) The function of visual image in effectual sustainability appraisal. In M. Horner, C. Hardcastle, A. Price, A ; J. Bebbington International Conference on Whole Life Urban Sustainability and its Assessment. Glasgow: Glasgow Caledonian university. Available at: hypertext transfer protocol: //download.sue-mot.org/Conference-2007/Papers/Isaacs.pdf. Isaacs, J. , Falconer, R. , Gilmour, D. A ; Blackwood, D. ( 2010 ) Enhancing urban sustainability utilizing 3D visual image. Proceedings Of The Institution Of Civil Engineers, p. IN PRESS. Isaacs, J. , Falconer, R. , Gilmour, D. A ; Blackwood, D. ( 2010 ) Sustainable urban developments: stakeholder battle through 3d visual image. In Continuing of the 11th IASTED International Conference Computer Graphics and Imaging. Innsbruck: IASTED, pp. 265-271. Levkowitz, H. A ; Herman, G. ( 1992 ) Color graduated tables for image informations. IEEE Computer Graphics and Applications ( Cgim ) , p. 72-80. Available at: hypertext transfer protocol: //www.computer.org/portal/web/csdl/doi/10.1109/38.135886. Levy, R. ( 1995 ) Visual image of urban options. Environment and Planning B, 22, p. 343-343. Available at: hypertext transfer protocol: //envplan.com/epb/fulltext/b22/b220343.pdf. Lodha, S.K. A ; Verma, A.K. ( 2000 ) Spatio-temporal visual image of urban offenses on a GIS grid. In ACM New York, NY, USA, pp. 174-179. Lowe, R. ( 2003 ) Animation and acquisition: selective processing of information in dynamic artworks. Learning and Instruction, 13 ( 2 ) , pp. 157-176. Available at: hypertext transfer protocol: //linkinghub.elsevier.com/retrieve/pii/S095947520200018X. Lowe, R. ( 2004 ) Question of a dynamic visual image during larning. Learning and Instruction, 14 ( 3 ) , pp. 257-274. Available at: hypertext transfer protocol: //linkinghub.elsevier.com/retrieve/pii/S0959475204000313. Paracchini, M.L. , Pacini, C. , Calvo, S. A ; Vogt, J. ( 2008 ) Weighting and collection of indexs for sustainability impact appraisal in the SENSOR context. In Sustainability Impact Assessment of Land Use Changes. Berlin: Springer, pp. 349-372. Parkin, S. , Sommer, F. A ; Uren, S. ( 2003 ) Sustainable development: understanding the construct and practical challenge. Engineering Sustainability, 156 ( 1 ) , p. 19-26. Available at: hypertext transfer protocol: //www.atypon-link.com/telf/doi/abs/10.1680/ensu.156.1.19.37055. Salter, J.D. , Campbell, C. , Journeay, M. A ; Sheppard, S.R. ( 2009 ) The digital workshop: researching the usage of synergistic and immersive visual image tools in participatory planning. Journal of environmental direction, 90 ( 6 ) , pp. 2090-101. Available at: hypertext transfer protocol: //www.ncbi.nlm.nih.gov/pubmed/18558460. Shiffer, M. ( 1998 ) Multimedia GIS for be aftering support and public discourse. Cartography and Geographic Information Science, 25 ( 2 ) , p. 89-94. Available at: hypertext transfer protocol: //www.ingentaconnect.com/content/acsm/cagis/1998/00000025/00000002/art00004. States, U. ( 2000 ) A Summary of Models for Measuring the Land-Use Patterns. Environmental Protection ( September ) . Stevens, D. , Dragicevic, S. A ; Rothley, K. ( 2007 ) iCity: A GIS-CA modeling tool for urban planning and determination devising. Environmental Modelling A ; Software, 22 ( 6 ) , pp. 761-773. Available at: hypertext transfer protocol: //linkinghub.elsevier.com/retrieve/pii/S1364815206000582. Traynor, C. A ; Williams, M.G. ( 1995 ) Why are geographic information systems hard to utilize? In CHI ’95: Conference comrade on Human factors in calculating systems. New York, NY, USA: ACM, pp. 288-289. WCED ( 1987 ) Our common hereafter. Members of the Comission. Available at: hypertext transfer protocol: //scholar.google.com/scholar? hl=en A ; btnG=Search A ; q=intitle: Our+Common+Future # 0. White Young Green ( 2007 ) Traffic Signalling Modelling Report. Traffic ( March ) .

Bubbles on the South Sea Essay Example | Topics and Well Written Essays - 1250 words

Bubbles on the South Sea - Essay Example This is a significant drop in the total value of a market, almost undoubtedly to the popping of a bubble, creating a situation wherein the majority of investors are trying to flee the market at the same time and consequently incurring massive losses. And terribly affects everyone. The inevitable crash came and the strain proved too much to many joint stock companies. The immediate cause was the activities of the South Sea Company. It had been formed to engage in trading in the South Seas, but it also has engaged in the funding of the national debt in return for monopolistic privileges. The bad repute of this joint-stock companies had led to the passage of the Bubble Act for the regulation of companies in the main attempt to prevent panic. Bubble Act declared that only companies formed by charter or by a private act of parliament were legal. The South Sea Company was reasonably successful. It was chartered by the government for trade in South America and the South Sea. The relationship between the government and the company created confidence and high expectations. In the history, they were given the monopoly of trading in the Pacific Ocean and along the coast of South America, made an offer to the government to pay off the whole National Debt and to buy up the irredeemable annuities, according to Melville amounting of â€Å"â‚ ¤800,000 a year, provided the different public securities were consolidated into one fund in their hands and the government gave the company certain exclusive commercial privileges†. In spite of the limited privileges conceded to it in the Asiento by Spain, been highly successful in the slave trade. This means according to (Colliers Encyclopedia) â€Å"that they have the right for 30 years to supply Spanish-America colonies with 4,800 slaves annually and to send to Porto Bello and Vera Cruz a trading ship of 500 tons a year†.  

Law and the Constitution in Canada Essay Example | Topics and Well Written Essays - 250 words - 2

Law and the Constitution in Canada - Essay Example In Canada, AG v. Canada Temperance Federation [1946] AC193, 2 DLR, provided for an exemplary display of judicial independence. During the case, the conflict to be resolved was a court suit challenging the Canadian Federation Act (CFA) was valid. In the ruling, the court declined the validity of the CFA1. The issue that brought conflict was the constitutionality of the Canadian Temperance Act. The concern of Peace, order, Good and Governance (POGG) became known. During the 4-2 majority ruling, the court further affirmed that the Act was within the legislative constitutionality competence of the parliament. Secondly, Johannesson v West St. Paul 1952 (SCC) portrayed judicial independence as an important recipe in restoring order to Municipality Acts2. During the case, the plaintiff argued that he wanted a designated place for his aerodromes. Under the Municipality Act had prohibited his aerodromes because of the noise they generate. However, the Supreme Court of Canada (SCC) by majority ruled that the issue was of a national importance and was within exclusive jurisdiction of the federal government under the POGG3. In addition, Russell v The Queen had declared the Canadian Temperance Act as constitutional when it was challenged at the SCC. Moreover, during the R. v. Crown Zellerbach Canada Ltd [1988] 1 S.C.R. 401, the SCC upheld the validity of the Ocean Dumping Act that today, form part of Canadian Environment Protection Act4. Despite coming to sharp criticism, the SCC and judicial independence have transcended the Canadian judicial system as the answer to conflicting definition and jurisdiction of the federal and provincial

Lyme Disease Research Paper Example | Topics and Well Written Essays - 1750 words

Lyme Disease - Research Paper Example The disease was characterized by outbreaks in the early fall and during the summer which showed that the vector was an arthropod (Todar, n.d). Initially children were diagnosed with juvenile rheumatoid arthritis; however, the increasing prevalence of the illness resulted in a detailed scientific research concerning the etiology of the disease. Studies of the pathogenesis and signs of the disease led to the discovery of its connection with Borrelia burgdorferi (Todar, n.d).This led to the distinction of the disease from rheumatoid arthritis as rheumatoid fever has an auto immune etiology (Edwards, Cambridge and Abrahams, 1999). The similarity of the symptoms of both diseases led to the incorrect diagnosis. Lyme disease has the highest prevalence among tick borne diseases in the Northern Hemisphere (Fell, 2000). Etiology The etiological agent was discovered by Willy Brgdorfer in 1982 (Todar, n.d). It was isolated from the gut of the black legged tick and was identified to be a spiroche te from the genus Borrelia (Todar, n.d). The spirochetes were found to react with serum which had been extracted from patients suffering from Lyme disease. The etiologic agent was named after Willy Burgdorfer and is known as Borrelia burgdorferi. Other species which cause Lyme disease include B. garinii and B. afzelii. Recent studies have also suggested that Borrelia miyamotoi is a causative agent as it has been found to occur in areas where Lyme disease is an endemic (Krause, Wormser and Narasimhan et al., 2013). Lyme disease is transmitted by an agent known as Inxodes scapularies. The bacteria live within the gut of these ticks which feed on human and animal blood. These ticks feed on blood for a long period of time and the bites are usually undetected due to the size of the ticks (Lo Re, occi and Mc Gregor, 2004). Risk Factors Some of the risk factors associated with Lyme disease are the activities in which one participates (Mayo Staff clinic, 2005). Individuals who spend a major ity of their time outdoors are prone to Lyme disease. The area which an individual lives in is also a risk factor for Lyme disease. Such areas include the Midwest and Northeast region (Diuk-Wasser, 2012). Ticks are mostly active during the warm seasons between May and November; hence this time period poses a risk of contracting the disease (Lyme disease Update Review, n.d). Events such as camping, hiking and gardening are also risk factors. The risk of contracting Lyme disease is high in individuals exposed to ticks. The highest cases have been reported among individuals between 5-15 years and 45-54 years old (University of Maryland Medical Center, n.d). Lyme disease is only transmitted in approximately 3% of all tick bites and the length of the bite increases the risk of transmission. Mechanism of the disease. Borrelia burgdorferi undergoes an infectious cycle from nymph moulds to adults. The female lays eggs which feed on the first host and are then dropped to the ground and trans form to nymph. The nymphs then attach and feed on the second host (Wasiluk, 2011). The chronic form of the disease affects numerous organs of the body, in particular, the joints, skin, brain and heart. The disease is classified into three stages, the first stage being of limited infection, which is followed disseminated infection and the last stage is late borreliosis (Wasiluk, 2011).

Research proposal Example | Topics and Well Written Essays - 2000 words - 1

Research Proposal Example In addition, this means that it has to involve the teachers in such a manner that the teachers are able to engage in the science practices in a much more detailed level. As a background to this, knowledge and skill in scientific inquiry has been a fundamental reform movement in science education according to the American Association for the Advancement of Science (AAAS). Various documents, such as the 2012 National Research Council publication on Framework for K-12 Science Education identifies the various major scientific concepts and principles that a student is expected to grasp by the end of high school. Consequently, this forms the basis upon which the Next Generation Science Standards (NGSS) is structured. Therefore, the NGSS seeks to better engage students in the learning process consequently facilitating their more active exploration of the core scientific ideas and theories. Proper scientific understanding highlights the level of impact that the education system has had on an individual. These include essential knowledge and skills such as the possession of the ability to formulate scientific hypotheses, produce explanations, design and conduct experiments, gather and analyze data, and the general ability to communicate and reflect about the findings. Enabling all this calls for the teachers involved to have specific skills particularly geared towards the successful teaching of science to generate scientific knowledge. This forms the basis for the NRC framework that idealizes the development of a scientific-based approach among teachers to emphasize the practice of skills in addition to just acquiring them. This calls for teachers to engage in scientific enquiry practices such as asking questions, developing and using models, planning and carrying out investigations, analyzing and interpreting data, using mathematics and computational thinking, constructing explanations, engaging in argument from evidence, and obtaining, evaluating, and

Human Growth and Developement Essay Example | Topics and Well Written Essays - 500 words

Human Growth and Developement - Essay Example From this paper, it is clear that big 5 personality traits are the five basic dimensions of any individual’s personality and are a broad classification of personality, whereby agreeableness refers to the ability to be trustworthy, kind and affectionate while neuroticism points emotional instability, anxiety, and moodiness. On the other hand, openness and conscientiousness refer to the ability to be insightful and thoughtful, respectively. For effective nursing, it is crucial to have an appropriate combination such as extraversion meaning excitability, sociability, and talkativeness, agreeableness, openness, and conscientiousness. These come in handy in nursing in terms of catering for the needs of their patients emotionally through social and high emotional expression.This paper highlights that  ageism is the term used to refer to discrimination against people based on their age, and stereotyping on the same. In the media, the issue of ageism has come up in recent times due to the practice of discriminating the aged, middle-aged, teenagers and children on various grounds related to their age.  This is where humorists and comedians avoid making jokes on racial, disability and sexist grounds, but feels okay to bare their bias and negative attitude to those they consider unworthy of their respect.  This is by attacking the target group with harsh comments. In nursing cases, ageism applies in employment and experience where some of the junior and senior members of the nursing profession deny one another respect.

Inhibition of DNA processing in heavy metal carcinogenesis Essay

Inhibition of DNA processing in heavy metal carcinogenesis - Essay Example Nonetheless, although it has been noted that some heavy metals may inhibit SSB (single strand break) rejoining, the effects on single strand break end-processing enzymes has never previously been investigated. First, an analysis on the DNA replication as a result of topo-1 enzyme will be done. This will show how topo-1 enzyme is responsible for winding of DNA structures. A picture analysis will be included to show evidence of the process. As mentioned earlier, different heavy metals have effects on the living organism’ DNA. The metals will be discussed together with their effects. This paper also explores inhibition of superoxide dismutases. This enzyme catalysis the dismutation of extremely reactive superoxide ions to generate hydrogen peroxide and numerous lines of evidence propose that these enzymes play significant part in the development and also response to treatment of cancers. These are enzymes that control under-winding and over-winding of DNA. DNA winding comes from the intertwined nature of its double-helical structure. For instance, during replication of DNA, DNA is overwound before a replication fork. When it is not controlled, it will eventually lead to a halt in DNA replication. A similar process is observed during transcription. To overcome the topological problems resulting from the double helix, topoisomerases are bound to single or double stranded DNA and cut the phosphate spine of the DNA. This untangles the DNA releasing the DNA spine again. Since the chemical composition of the DNA remains the same, the untangled DNAs are chemical isomers. Therefore, topoisomerases are isomerase enzymes which work on the DNA topology. The N-terminal domain is then preceded by a highly conserved, 421 amino acid core domain that contains all of the catalytic residues except the active site tyrosine. A protease-sensitive and poorly conserved linker domain

International Travel Essay Example for Free

International Travel Essay No matter how much you read ahead of time, youll be confronted with culture and custom that you are unprepared for. The farther removed the culture is from your own, the more you can expect to be surprised. Novice travelers will struggle with the basics everything from getting a cab to finding a public bathroom can offer a challenge. Veteran travelers will be more secure with the small stuff and that may offer them a firm-enough foundation to give them the confidence to try the more challenging things. That is where we were on our recent adoption trip to China: Veteran third-time travelers who were confident that we could do anything and blend right in. Our trip to the real Chinese restaurant taught us otherwise. It was our second week in China. We were there with our two previously adopted Chinese children, ages ten and eleven, and wed just added a new family member. She was a new daughter, age twelve, and she spoke not a word of English. Things had been going very well, and our new daughter was really fitting in seamlessly. This being our third trip, we felt pretty cocky. We snickered good-naturedly as first-time travelers timidly peeked outside the doors of the hotel onto the Chinese thoroughfare. They might make a run for the McDonald’s now and again, or go all the way up the block to KFC, but actually heading out into the big city, sans guide, was not on their bucket list for the time being. That was not for us. We decided that wed all head out to an authentic local restaurant, the sort frequented by the Chinese rather than by westerners; the type with plastic curtains rather than doors; a restaurant with no western influences beyond the ubiquitous presence of Coca-Cola products. Three hungry children herded between us, my wife and I set out to find just the right place. We headed out the less-frequently-used rear entrance of Guangzhous China Hotel, which spilled out onto the broad Panfu Avenue, a typical busy main thoroughfare. It was filled with small shops and stalls, looking shabby and temporary to Western eyes, though in reality, permanent centers of street commerce. We wound our way through typical robust foot traffic, straining to keep the kids together amidst the crowds. We passed up several restaurants close to the hotel in an effort to separate ourselves from the tourist-oriented places, but several blocks away we came upon the Liushen Xiguan restaurant, which translates roughly as â€Å"Traditions of the Six Gods† restaurant. It was clad in gold paint, trimmed with red cloth, and several large Buddhas smiled at us as they stood sentry on the sidewalk. The wall in the entryway was covered with awards given by the local of chamber of commerce, and as an added benefit, the awards each offered a picture of the winning dish. Velvet padded bamboo chairs lined the wall in the waiting area. Peeking through the windows, we could see that the dining area was enormous. Such a place was likely to have good food, was clearly worth a stop. It was 4:50 when we asked to be seated, but oddly, the dining room was dark and the hostess desk was empty as were the tables. No table cloths or place settings were to be seen, and the chairs were upended and sitting atop the tables. A hostess apprehensively approached us to talk. After much arm flapping and hand gesturing, we came to understand that the restaurant would not open until five P. M, although we could not see how it would do so. Not a soul was to be seen besides the hostess, and nothing was prepared for customers. We began to have second thoughts and we started to wonder if wed misunderstood the hour that service would start. We decided to wait for a bit, if only to rest. At the stroke of five the lights came on to illuminate a dozen employees rushing from the kitchen, bearing ornate livery for the tables, and tools of the trade for the hungry guests. The dining space went from abandoned warehouse to friendly, well-lit, white linen appareled eatery in a matter of moments. Once seated, we began to notice differences from what we expected in a restaurant. Soup bowls appeared, as well as a pot of tea, tea cups, and a large empty ceramic bowl. We watched the other tables to see what use our fellow diners would have for the bowl. Some diners were watching us. Perhaps they didnt know what to make of the empty bowl either? More likely, they were wondering what a couple of Americans were doing here staring at them too. Other diners were taking the cups, bowls, and spoons and washing them in the tea, using a rather practiced method. The used tea was discarded into the empty bowl. I wasnt sure if this meant we needed to do our own dishes, or if it was simply a custom. To be on the safe side, we started washing. I noticed curious grins. Was I doing it wrong? Did we appear like children playing in a wading pool? Unblemished by the bemused stares, we toweled ourselves dry, and with confidence in the cleanliness of our place settings, we dug into the menu. There were thirty pages of menu items. Many had pictures and some had English translations, though mostly the translations read â€Å"Pork and vegetables in sauce† or â€Å"Chicken with vegetables in sauce†. While Im certain that was accurate, it was of little value in helping us to choose from amongst the twenty five varieties of â€Å"Pork with vegetables in sauce†. We struggled with the pictures and each made the best possible dinner choices we could, with a few appetizers added in. The waitress took our order promptly and returned in a few minutes with my meal, and nothing else. No appetizers. No other orders. Just mine. She placed it in the center of the table and left. My meal was far larger than I expected. In fact, it was large enough to feed us all. Suddenly we grasped what we had missed. The table top was essentially an enormous lazy Susan. It appeared that we would be eating family style. Other tables were sharing food as well, so we set out to share the barbecued pork I had ordered. A few moments later the next meal appeared, and shortly thereafter, the next, and then the next, each meal large enough to feed a family of five. Even the items wed been led to believe were appetizers seemed enormous. Before long, we had enough food for forty people. There was so much, that the server was barely able to find room for the last steaming bowl of fried rice. Ive been to weddings that served less food than wed purchased. We were clearly the center of attention now as we made an effort to at least put a dent in the spread we were responsible for. The pictures didnt do the food justice, nor were they worth the thousands words Id so often been promised. The fried rice was filled with boldly colored fresh carrots, peas and sprouts, and those turned out to be the only vegetables on the table that we easily recognized. We were served steamed and pan-fried dumplings, bursting with juices and filled with meat stuffing. There was a whole roasted chicken, the bright yellow color of a school bus. When I say whole, I mean it. Chicken in China often comes with feet, head and beak attached. It appeared that our dinner had walked straight from the barnyard to the oven. A second chicken was served in pieces which had the bright red color of a fire engine. Both birds were juicy and offered bold flavor, the yellow one having been seasoned with a curry and the red one more of a peppery spice. The seafood dish seemed a bit more tentacle-filled than we were used to, and it went largely unloved. I still have no clue to this day what was in it, though I will admit that the description â€Å"fish with vegetables in sauce† seemed unerringly accurate. Our crisp pork on a platter seemed straightforward. No sauce or vegetables, though I could swear that the translation of the dish said they were included. Our meal was rounded out by a course of tea smoked duck. The dark meat had been roasted over a tea leaf fueled fire and had a deep rich flavor. After some of our other mis-translations, I would not have been surprised to have had it served in a pipe for actual smoking, but it wound up being the best part of the meal. I do hope it was duck though. We left a great deal of food on the table. In very American fashion, we asked for containers to take the remaining food for thirty back to our hotel. That doesnt seem to be the norm in China, but we packed up our bags and loaded up with more victuals than a United Nations food convoy. I was concerned about the cost, but for all the entertainment that our endeavors provided for the patrons, perhaps they should have paid us. The price was thankfully low; bless you generous exchange rate. One last problem appeared. The tip. It is insulting to over tip in China. After having the experience of being publicly chastised by a cab driver for over tipping, I was leery. Loaded down as we were, there could be no quick escape should I insult the staff with too many Yuan, or too few. The Six Gods must have been watching out for us though. The older hostess (manager, cook, waitress, cashier no real idea) took pity on me and selected a bill to leave as a gratuity. It was far less than I would have chosen. Id have given her double that just for getting me out with my remaining dignity intact. We wound our way back to the hotel, filled with a good meal, good stories, and a good deal of new knowledge about how things are done in China. I mentioned the experience to our guide, who filled in a few of the blank spots. He was happy to hear that we were treated well by the local people. I was happy for the experience. A few days later, we coaxed some other group members to come out with us to the restaurant. We displayed our dining skills for them without ever mentioning the difficulties with which they were acquired. After all, that is how veterans maintain their mystique.

The Role Of Cryptography In Network Security Computer Science Essay

The Role Of Cryptography In Network Security Computer Science Essay Network security is concerned with the protection of network resources against alteration, destruction and unauthorized use, cryptography and encryption are most critical components of network security. In my assignment, as a network security manager, I will try to research explore the performance of various cryptographic schemes and evaluate web security and the security of wireless network system. Networks take all kind of sensitive data and security play a vital role of any wireless network system. Security certify level of data integrity and data confidentiality as maintain wired network, without accurately implement security measures and wireless network adapter come within range of the network adapter. Security is high lack, laziness, and lack of knowledge and employee are not aware of these things, especially in small organisation and home, every organisation need to aware and training for employees time to time. Cryptology has two components, kryptos and logos. Cryptographic methods to certify the safety and security of communication and main goal is user authentication, data authentication such as integrity and authentication, non-repudiation of origin, and confidentiality and it has two functions encryption and decryption. In my research, as a network security manager, I will analyze cryptography, web security, and security of wireless network system to implement the network security strategies for the organisation in future. 1. Explore and explain different types of cryptography and assess the role of cryptography in network security. Cryptography has different methods for taking clear, readable data, and converts into unreadable data of secure communication and also transforms it back. Cryptography is also used to authenticate identify of message source and certify integrity of it. Cipher send message and use secret code. The cipher scrambles the message so that it cannot be understood by anyone other than the sender and receiver. Only the receiver who has the secret code can decipher the original message, thus ensuring confidentiality. (Citrix-system, 2010) Type of cryptography Following three common types of cryptography as below: Secret key cryptography is identified as symmetric key cryptography. Both sender and receiver know same secret code described the key and messages are encrypted by the sender and use key, decrypted by the receiver. It use single key for both encryption and decryption. This method works healthy if you are communicating with only a limited number of people, but it becomes impractical to exchange secret keys with large numbers of people. Secret key cryptography use is such as data encryption standard, advance encryption standard, Cast-128/256, international data encryption algorithm, and rivest ciphers etc. (Citrix-system, 2010) Public key cryptography is called asymmetric encryption and use couple of keys one for encryption and another for decryption. Key work in pairs of coordination public and private keys. Public key can freely distributed the private key. If senders and receivers dont have to communicate keys openly, they can give private key to communication confidentially. Public key cryptography use for key exchange and digital signatures such as RSA, digital signature algorithm, public-key cryptography standard etc. Hash functions use a mathematical transformation to permanently encrypt information. It also called message digests and one way encryption. Hash function use to provide a digital fingerprint of file contents and it is commonly employed by many operating system to encrypt passwords and it provide measure of the integrity of a file. It is also use message digest, secure hash algorithm, RIPEMD etc. (Kessler, G,2010) The role of cryptography Many feature combine to throw network security to the top issues in the organisation and face IS professional daily. Nowadays business operation decentralization and correspondence growth of computer network is the number one driver of concern about the network security. As far as security concern, many organisation networks are accidently waiting to occur, such accident will occur is impossible to predict but security breaches will occur. When organisation network security chooses is 100% involve cryptography technology. The following five basic uses of cryptography in network security solution are: Confidentiality Cryptography gives confidentiality through changing or hiding a message and protects confidential data from unauthorized access and use cryptographic key techniques to critically protect data; Access control Only authorized users (login password) can access to protect confidential data etc. Access would be possible for those individual that had access to the correct cryptographic keys; (Mitchell, M, 1995) Integrity Cryptographic tools give integrity verify that permit a recipient to authenticate that message transformed and cannot prevent a message from being transformed but effective to identify either planned and unplanned change of the message; Authentication is the ability to verify who sent a message. It done through the control key because those with access to the key are able to encrypt a message. Cryptographic function use different methods to certify that message is not changed or altered. These hash functions, digital signatures and message authentication codes. 2. Explore encryption for network security. Encryption for network security Encryption is the most effective method to reduce data loss or theft to encrypt the data on the network security. Encryption is a process of network security to apply crypto services at the network transfer layer on top of the data link level and under the application level. Network encryption other name network layer or network level encryption. The network transfer layers are layers 2 and 4 of the open systems interconnections (OSI) is the reference model, the layers responsible for connectivity and routing between two end points. Using the existing network services and application software, network encryption is invisible to the end user and operates independently of any other encryption processes used. Data is encrypted only while in transit, existing as plaintext on the originating and receiving hosts. Encryption for network security execute through internet protocol security and set of open internet engineering task force (IETF) standard and apply in combination and build structure for confidential communication over IP networks. Internet protocol security works through the network architecture and encrypted packets show to be the same to unencrypted packets and rout through any IP network easily. Network encryption product and services provide several companies such as Cisco, Oracle etc. (Search security, 2010) http://www.cipheroptics.com/images/network-encryption-big.jpg Figure 1 Network Encrypted 3. Critically review the key and password management in terms of network system security. The key management Information become essential assets and protects it and availability is vital for business success. Encryption is the technology for doing so and become significant part of network system security. Encryption key is very helpful to secure data and information. There are two types of key public and private key use to secure the information and network. These key used in cryptographic system as below: Public Key it was invented in 1976 and refer to cypher architecture type and apply two key pairs is encrypt and decrypt. It can use to encrypt message and corresponding private key to decrypt it. Public key encryption believe extremely secure because it does not need secret shared key among the sender and receiver. It is helpful for keeping private emails and stored on mail servers for many years. It programs such as PGP has digital signature ability built message sent can digitally signed. Private Key it also called secret key and encryption/decryption key to exchange secret messages and shared by the communicators so that each can encrypt and decrypt messages. Public key uses with private key together. (Search-security 2010) Password management Password is the most important aspect to login into the system and the network. Organisation should allow only authorised users to access to the network and every user access individual login and passwords to enter the network, its result increase the security aspects. There are following necessary things to secure password in the network system as below: Long Password every user need to long password because short password can very quickly compromised and analyse the permutation based on the password length; Change password anytime employee should change password regularly, nobody assume easily and helpful for security breaches of the network; Avoid utilize similar password dont use the same password for different accounts because it would naive for administrator to think and employee should use different password for safety and security for network system; Necessity to changing password regularly employees also gradually more access their work accounts from remote location, user need to educate/awareness on the required of altering the password frequently. (Storts, J, 2010) 4. Compare symmetric and asymmetric encryption systems and their vulnerability to attack. Symmetric encryption systems and their vulnerability Symmetric encryption system use same secret key is used to encrypt and decrypt information and transform between two keys. Secret key concern to information to transform the content because both can use encrypts and decrypts traffic. Symmetric encryption system has two types are: Stream ciphers it is bits of information one at a time and operates on 1 bit of data at a time. It is faster and smaller to implement and have an important security gap. Certain types of attacks may cause the information to be revealed; Block ciphers it is encrypts information by breaking it down into blocks and encrypt data in each block and this data is fixed sized commonly 64 bit and mostly use in triple DES and AES. (Encryptionanddecryption, 2010) Symmetric encryption algorithms including Des, 3DES, AES, and RC4 etc. 3DES and AES are normally used in IP sec and other types of VPNs. RC4 is used on wireless networks and used by WEP and WPA for encryption. Symmetric encryption algorithms can be extremely fast, and their relatively low complexity allows for easy implementation in hardware. However, they require that all hosts participating in the encryption have already been configured with the secret key through some external means. (Stretch, J, 2010) Symmetric Encryption Vulnerabilities are: To break symmetric encryption system through brute force and cryptanalysis; Figure-2 Symmetric encryption system Weak password can break symmetric encryption systems; Password always keep in mind or make a backup copy of the password; Exchange secret keys in secure manner and stored properly. (Encryptionanddecryption, 2010) To leaking and spying out password. symmetric_encryption.png Asymmetric encryption systems and their vulnerability Asymmetric encryption system use two keys one for encryption use for public, anyone can encrypt a message and another for decryption use for private and only receiver can decrypt a message, normally set up a key pair within a network and involve in six main elements are: Plaintext Text message applied in algorithm; Encryption algorithm it performs mathematical operation to conduct substitutions and transform to the plaintext; Public and Private keys the keys pair where one use for encryption and other decryption; Ciphertext produce encrypt message by applying algorithm to plaintext message through using key; Decryption Algorithm generates ciphertext and match key to produce the plaintext. (Encryptionanddecryption, 2010) Most common asymmetric encryption is RSA and if compare with symmetric encryption it is much slower but its capability to establish secure channel over a non-secure medium such as internet. This is accomplished by the exchange of public keys, which can only be used to encrypt data. The complementary private key, which is never shared, is used to decrypt. (Stretch, J, 2010) asymmetric_encryption.png Asymmetric Encryption Vulnerabilities are: Figure-3 Asymmetric encryption systemPublic key can be distributed freely; It is computing intensive; It process very slowly; Weak password can easily steal; Weak encryption to break this system; Crash digital signature; Security breach at the time of key exchange. 5. Explain and critically assess web security and critically list down different type web security tools and technologies. Web security Web is very vital role in our daily life such as online searching, surfing, customers, vendors, co-staffs, email, etc but need to be web security and identity theft protection. Web security has many problems like spam, viruses, security breaches theft etc. This problem with web security is the part of network of attack computers and servers send out spam messages without knowing it and email / passwords produce and re-sale to competitor. In my research, security expert says that shows you how to do something in five minutes and conveniently neglect to mention the security implications of their advice. If it sounds too easy to be true, it probably is. A perfect example of this is PHP solutions that use a file for data storage and ask you to make it writable to the world. This is easy to implement, but it means that any spammer can write to this file. (Heilmann, 2010) Web security has many risk and attacks such as IP address identify the computer, Fixed IP address is larger security risk, share network, staff unaware security leak in the network setting, SQL injection attacks, exploits browsers and websites, remote file inclusion (RFI), phishing etc. (Heilmann, 2010) Web Security Tools and Technologies The following list down of different type of web security tools and technologies as below: Spike Proxy It is a professional grade tool for looking for application level vulnerabilities in web application and cover SQL injection and cross-site-scripting; Power fuzzer It capable of spidering website and identifying inputs and common web vulnerabilities such as XSS, SQL injection and support https. Written in python; Sec point penetrator It network security tools based, penetration testing appliance or web based service give vulnerability scan pen testing and can change IP address to scan and report; Net sparker It allows users to exploit the identified vulnerabilities and see real impact of the problem. It capable false positive free, handling of websites that rely on AJAX and JavaScript; OWASP It uses multiple techniques such as conditional errors injection, blind injection based on integers, strings/statements, MS-SQL verbose error message and identify database version and gather information Gama Sec It is automated online website vulnerability assessment delivers test to web servers, web based application and web-interfaced system and support HTTP authentication schemes, HTTP protocol, BASIC etc; NIkto Scanner Open source web server scanner and perform complete tests against web servers for multiple items, dangerous files, CGIs, and problems of the server; Perimeter check it analyze external network devices such as servers, websites, firewalls, routers and security vulnerabilities and also lead to interrupted service, data theft, system destruction and help immediately remedy security problem. (Hower, R, 2010) . 6. Identify vulnerabilities and mis-configurations in wireless networks. Vulnerability and mis-configuration describe as some event that exposes organisation and network security has ability to work efficiently its required confidentiality level and protects lack of the systems. Wireless networks vulnerabilities Some of the following common wireless networks vulnerabilities as below: No set physical boundaries wireless access points can lose signals, due to doors, walls, floors, and insulation etc; Untrained users setting up unauthorized networks and workstation untrained users who either are uninformed and therefore unaware of security measures that must be taken when deploying wireless, or whose desire to have wireless is so strong that it completely overshadows the rules set by the organization to ensure that systems are secure. (Lane, H, 2005) Rogue access points this attack consist of connecting illegal access point on the network; Lack of monitoring every organisation has some loopholes in monitoring but intrusion detection tools can use continuously monitor to secure the network system; MAC address filtering it is unique number assigned and wireless LANs allows access point to connect to network. Filtering can result in security breach as user change MAC address, it result identity theft; Insufficient encryption standards weak encryption standard say that users will not enable it and harmful to wireless LAN as weak encryption; Easy to eavesdrop wireless use airwaves to listen easy on network traffic or connect to network and it results the data is encrypted with strong encryption. If WEP encryption use, hackers can some attempt to decrypt the information; Unsecure holes in network hacker can enter wireless LAN by circumventing firewalls and allow other to come, as a result confidential data lost or may compromise on the network; Denial-of-service attacks external causes based is Denial-of-service attacks and make network unproductive and forcefully user to disconnect continually disrupting operation in the organisation such as jamming (jam a radio network), rush access (overload network with malicious connection), spoofed de-authentication frames etc. (Lane, H, 2005) Wireless network mis-configuration Mis-matched software and hardware it is problem arises for network infrastructure that is vulnerable to wide range of attacks. Sometime function work properly but awfully mis-configured; Service Set ID (SSID) SSID is a configurable identification mechanism to enables a client to communicate with the correct base-station. Configured properly with SSID otherwise attacker can exploit the SSID in attempt to access base station and change SSID password and change 802.11 security settings for authentication. (Spam-laws, 2009) 7. Demonstrate how to keep wireless network system safe. Nowadays, wireless network become more common called Wi-Fi /802.11 and allow computer to connect to another without cables and using computer easier and more convenient than ever before with fast internet connection and wireless router and surf internet, data transfer, print documents, email, download information etc but unhappily, it also make easy for outsider/hacker to do the same. Organisation should following points to keep wireless network system safe and secure as below: Keep-out undesirable wireless guests wireless network restrict access through encryption is easy through which encoding or scrambling information to receive and send, only those can access with right password or encryption key and restrict wireless network to normal office hours. Some encryption protect wireless network such as wired equivalent protection (WEP), Wi-Fi protected access (WPA), WPA2 etc; Choose strong password in my research, I found some basic guideline when create a wireless network password is Password should be longer (20 characters) it takes someone to figure it out; Use mixture lowercase and uppercase letters; Insert numbers in between letters; Change password every 3 months; Write password down and keep in safe (in case of forget). Use the firewall it is front security and secures network, computers and data from snooping eyes; (Bryan, S, 2010) Dont show the name of the network (SSID); Change default SSID, dont use name to identify the organisation; Use MAC filtering because each network card is unique code known MAC address and access points to restrict access to assured; Switch on and use built-in encryption to prevent eavesdrop; Restrict user ability (network administrators) to setup quick and dirty wireless network, even temporarily. One rogue access point can undo all the good work you do on the others; Certify all security measures are in place, it result defence against intruders; (Microsoft, 2010) Turn off the wireless network when it isnt use; Hide/keep safe place confidential files/data. Conclusion I conclude that security of wireless network system play key role in every organisation and also implement all network security strategies for the organisation in present and future and secure network resources against alteration, destruction, and unauthorized use. Cryptography tools and web security tools are also very helpful to secure the network system and protect IT assets, confidential data and information. Recommendation I recommend some of the important points as below: Better education and stronger security implementation; Wireless network awareness and training for employees timely; Update wireless network security timely; Certify to secure wireless access point with a strong password; When it need implement WEP authentication method; Make sure all users have proper key or password configured on their system; Make sure all service provide to users are protected by end to end encryption; Use SSID, MAC address filtering allows to configure wireless APs.

Believe in Love at First Sight Essay -- essays research papers

Well I use to believe that love couldn't be made at first sight. But yet now today I do think it happens. I will now share what I think love means. Love is affection, devotion, passion, desire, warmth, respect or loyalty. You choose. It doesn't really matter which one because they are all forms of love. Some are powerful and demand attention while others are more subtle and just below the surface. In recent years, love has drifted from these subtle levels to the more noticeable ones, namely passion. In my opinion, our society downplays the real necessity for genuine affection. By this I mean that we, as a society, spend so much time focusing on only one level of love (passion) that we tend to neglect and not recognize the need for closeness and trust (friendship). Love is an all-encompassing emotion that can be powerful and demanding, but also rewarding and pleasurable. Love is commitment. To love means to commit oneself without guarantee, to give oneself completely in the hope that our love will produce love in the loved person. Commitment can be called the backbone or building block of love. In other words, commitment is needed in order to build a stable and trusting relationship. Without commitment, love would not be able to grow and flourish. It can be extremely demanding on someone who isn't ready or sure that they want to commit to another person. I do have to admit that sometimes this can be extremely difficult and may leave one feeling a bit vulnerable. Commitment is the ability to take a risk and to accept the possibility of disappointment or pain. Again, I have to agree that commitment can be demanding, but to look on the bright side, it can also be rewarding. To be able to stay in ... ...t quench Love, nor floods wash it away." (Songs 8:7) Love is powerful and beautiful if one knows how to show and possess it. Granted it can cause problems, but it has answers too. To say that love is subjective would be an understatement, but in order to have it we must first look within ourselves. Love is having compassion for others, sharing feelings and your life with another person, as well as, having faith in others and forgiving those we love for the any errs that they may make. Most of all, we must be committed to those we love. Of course, this is only my opinion. No matter how long I try to explain what love is ultimately it is up to you, the reader, to define what love is to you. So let me leave you now with the words of the great Humanist Erich Fromm, "Can anything be learned about the art of love, except by practicing it?"

The Prince as Foundation of Modern Day Politics :: Machiavelli Prince Essays

The Prince as Foundation of Modern Day Politics In The Prince Niccolo Machiavelli presents a view of governing a state that is drastically different from that of humanists of his time. Machiavelli believes the ruling Prince should be the sole authority determining every aspect of the state and put in effect a policy to serve his best interests. These interests were gaining, maintaining, and expanding his political power. His understanding of human nature was a complete contradiction of what humanists believed and taught. Machiavelli strongly promoted a secular society and felt morality was not necessary but in fact stood in the way of an effectively governed principality. Though in some cases Machiavelli's suggestions seem harsh and immoral one must remember that these views were derived out of concern Italy's unstable political condition. Though humanists of Machiavelli's time believed that an individual had much to offer to the well being of the state, Machiavelli was quick to mock human nature. Humanists believed that "An individual only 'grows to maturity- both intellectually and morally- through participation' in the life of the state." Machiavelli generally distrusted citizens, stating that "...in time of adversity, when the state is in need of it's citizens there are few to be found." Machiavelli further goes on to question the loyalty of the citizens and advises the Prince that "...because me n a wretched creatures who would not keep their word to you, you need keep your word to them." Machiavelli did not feel that a Prince should mistreat the citizens. This suggestion, once again, serves the Prince's best interests. If a prince cannot be both feared and loved, Machiavelli suggests, it would be better for him to be feared buy the citizens within his own principality. He makes the generalization that men are, "...ungrateful, fickle, liars, and deceivers, they shun danger and are greedy for profit; while you treat them well they are yours." He characterizes men as being self centered and not willing to act in the best interest of the state,"[and when the prince] is in danger they turn against [him]." Machiavelli reinforces the prince's need to be feared by stating: â€Å"Men worry less about doing an injury to one who makes himself loved than to one who makes himself feared. The bond of love is one which men, wretched creatures they are, break when it is to their advantage to do so; but fear is strengthened by a dread of punishment which is always effective.