Myths of the American Revolution

The American Revolution is a pivotal point in United States history, considering it was a main event in the creation of the United States itself. However, there are many myths surrounding it that are widely believed to be true. The main information we remember from elementary school and a lot of what textbooks and history teachers have taught us is at least partially incorrect. The main myth of the American Revolution is something that all US Americans, as a general rule, believe and agree with.It is something that forms the basis for our entire governmental system and policy of freedom as a country. According to A People’s History of the United States, Thomas Paine visualized the government presented in the Constitution would have a great common interest. He thought it would benefit all people equally, and in doing so, as Howard Zinn put it, he â€Å"lent himself perfectly to the myth of the Revolution. † That myth was that the Revolution was for the welfare of a unite d people.Contrary to what most US citizens believe and actively support, the United States was not separated from England because people wanted equality. The delegates who made the decision to declare independence and the ones who would most benefit from that were all basically middle-aged, property owning white men. These people made up a relatively small percentage of the population, and therefore the actions they took cannot be defined as for a united people.The people were not, in fact, united at all, but simply following the actions of the Continental Congress and acting out of self-interest for want of money and profit. There were even people who did not want to separate for Great Britain at all and were against independence. The wishes of these people were ignored, and so the idea of the US starting with equality that we all were brought up to believe, is in fact a myth caused by people who were lucky enough to get some land and wind up in a decision-making situation.

Study of Electromagnetic Clutch

ACKNOWLEDGEMENT It gives us great pleasure when a certain task is accomplished with great zeal and enthusiasm. We would like to extend our heartfelt thanks and deep sense of gratitude to all those who helped us in completing this project. First and foremost, we feel greatly indebted to Mr. D. M. SINGH and Mr. UBAID AHMAD KHAN, from the core of our heart for their constant support and valuable guidance time to time, because they encouraged and persuaded us to complete the project. We are also thankful to entire faculty members for their support.In order to complete the project we have taken help from various sites, books, study material etc. INTRODCTION A clutch is a mechanism for transmitting rotation, which can be engaged and disengaged. Clutches are useful in devices that have two rotating shafts. In these devices, one shaft is typically driven by motor or pulley, and other shaft drives another device. The clutch connects the two shafts so that they can either be locked together an d spin at the same speed (engaged), or be decoupled and spin at different speeds (disengaged). The clutch disc (centre) spins with the flywheel (left).To disengage, the lever is pulled (black arrow), causing a white pressure plate (right) to disengage the green clutch disc from turning the drive shaft, which turns within the thrust-bearing ring of the lever. Never will all 3 rings connect, with any gaps. TYPES OF CLUTCH DOG CLUTCH A dog clutch is a type of clutch that couples two rotating shafts or other rotating components not by friction but by interference. The two parts of the clutch are designed such that one will push the other, causing both to rotate at the same speed and will never slip.Dog clutches are used where slip is undesirable and/or the clutch is not used to control torque. Without slippage, dog clutches are not affected by wear in the same way that friction clutches are. Dog clutches are used inside manual automotive transmissions to lock different gears to the rota ting input and output shafts. A synchromesh arrangement ensures smooth engagement by matching the shaft speeds before the dog clutch is allowed to engage. Wet and dry A ‘wet clutch' is immersed in a cooling lubricating fluid, which also keeps the surfaces clean and gives smoother performance and longer life.Wet clutches; however, tend to lose some energy to the liquid. A ‘dry clutch', as the name implies, is not bathed in fluid. Since the surfaces of a wet clutch can be slippery (as with a motorcycle clutch bathed in engine oil), stacking multiple clutch disks can compensate for the lower coefficient of friction and so eliminate slippage under power when fully engaged. Cone clutch A cone clutch serves the same purpose as a disk or plate clutch. However, instead of mating two spinning disks, the cone clutch uses two conical surfaces to transmit torque by friction.The cone clutch transfers a higher torque than plate or disk clutches of the same size due to the wedging acti on and increased surface area. Cone clutches are generally now only used in low peripheral speed applications although they were once common in automobiles and other combustion engine transmissions. They are usually now confined to very specialist transmissions in racing, rallying, or in extreme off-road vehicles, although they are common in power boats. This is because the clutch doesn't have to be pushed in all the way and the gears will be changed quicker. Centrifugal clutchA centrifugal clutch is a clutch that uses centrifugal force to connect two concentric shafts, with the driving shaft nested inside the driven shaft. Centrifugal clutches are often used in mopeds, lawnmowers, go-karts, chainsaws, and mini bikes. Fluid coupling A fluid coupling is a hydrodynamic device used to transmit rotating mechanical power. It has been used in automobile transmissions as an alternative to a mechanical clutch. It also has widespread application in marine and industrial machine drives, where variable speed operation and/or controlled start-up without shock loading of the power transmission system is essential.Torque limiter It is also known as safety clutch. A torque limiter is an automatic device that protects mechanical equipment, or its work, from damage by mechanical overload. A torque limiter may limit the torque by slipping (as in a friction plate slip-clutch), or uncouple the load entirely (as in a shear pin). The action of a torque limiter is especially useful to limit any damage due to crash stops and jams. Torque limiters may be packaged as a shaft coupling or as a hub for sprocket or sheave. A torque limiting device is also known as an overload clutch. Electromagnetism What is an electromagnet?An electromagnet can be made by sending current through a coil of wire wound around an iron core. When current passes through a conductor, magnetic field will be generated around the conductor and the conductor become a magnet. This phenomenon is called electromagnetis m. Since the magnet is produced electric current, it is called the electromagnet. In short, when current flow through a conductor, magnetic field will be generated. When the current ceases, the magnetic field disappear. The direction of the magnetic field formed by a current carrying straight wire can be determined by the Right Hand Grip Rule or the Maxwell Screw Rule.What is magnetic field pattern? A magnetic field pattern can be represented by field lines that show the shape of the field. Magnetic field lines which are closed together represents strong field. Field direction is defined as the direction indicated by a compass needle placed in the magnetic field. Force on current carrying conductor If a current carrying conductor is placed in a magnetic field produced by permanent magnets, then the field due to current carrying conductor and the permanent magnets interact and cause the a force to be exerted on the conductor .The force on the current carrying conductor in a magnetic field depends on:- 1. The flux density of the field, B teslas 2. The strength of current, I amp 3. The length of the conductor perpendicular to the magnetic field 4. The direction of the field and current When the magnetic field, the current and the conductor are mutually perpendicular to each other then force exerted: F=IBL Newton When the conductor and magnetic field are at an angle, then the force exerted: F=IBLsin? Where; I=current, B magnetic field, L=Length of conductor ?-angle between conductor and magnetic field.Right Hand Grip Rule Grip the wire with the right hand, with the thumb pointing along the direction of the current. The other fingers give the direction of the magnetic field around the wire. The Maxwell's Screw Rules The Maxwell Screw Rules sometime is also called the Maxwell's Corkscrew Rule. Imagine a right handed screw being turn so that it bores its way in the direction of the current in the wire. The direction of rotation gives the direction of the magnetic fie ld. Electromagnetic clutch Electromagnetic clutches operate electrically, but transmit torque echanically. This is why they used to be referred to as electro-mechanical clutches. CONSTRUCTION A horseshoe magnet has a north and south pole. If a piece of carbon steel contacts both poles, a magnetic circuit is created. In an electromagnetic clutch, the north and south pole is created by a coil shell and a wound coil. In a clutch, when power is applied, a magnetic field is created in the coil. This field (flux) overcomes an air gap between the clutch rotor and the armature. This magnetic attraction, pulls the armature in contact with the rotor face.The frictional contact, which is being controlled by the strength of the magnetic field, is what causes the rotational motion to start. The torque comes from the magnetic attraction, of the coil and the friction between the steel of the armature and the steel of the clutch rotor. For many industrial clutches, friction material is used between the poles. The material is mainly used to help decrease the wear rate, but different types of material can also be used to change the coefficient of friction (torque for special applications).For example, if the clutch is required to have an extended time to speed or slip time, a low coefficient friction material can be used and if a clutch is required to have a slightly higher torque (mostly for low rpm applications), a high coefficient friction material can be used. In a clutch, the electromagnetic lines of flux have to pass into the rotor, and in turn, attract and pull the armature in contact with it to complete clutch engagement. Most industrial clutches use what is called a single flux, two pole design. Mobile clutches of other specialty electromagnetic clutches can use a double or triple flux rotor.The double or trip flux refers to the number of north/south flux paths, in the rotor and armature. This means that, if the armature is designed properly and has similar banana slot s, what occurs is a leaping of the flux path, which goes north south, north south. By having more points of contact, the torque can be greatly increased. In theory, if there were 2 sets of poles at the same diameter, the torque would double in a clutch. Obviously, that is not possible to do, so the points of contact have to be at a smaller inner diameter.Also, there are magnetic flux losses because of the bridges between the banana slots. But by using a double flux design, a 30%-50% increase in torque, can be achieved, and by using a triple flux design, a 40%-90% in torque can be achieved. This is important in applications where size and weight are critical, such as automotive requirements. The coil shell is made with carbon steel that has a combination of good strength and good magnetic properties. Copper (sometimes aluminium) magnet wire, is used to create the coil, which is held in shell either by a bobbin or by some type of epoxy/adhesive.To help increase life in applications, f riction material is used between the poles on the face of the rotor. This friction material is flush with the steel on the rotor, since if the friction material was not flush, good magnetic traction could not occur between the faces. Some people look at electromagnetic clutches and mistakenly assume that, since the friction material is flush with the steel that the clutch has already worn down but this is not the case. Clutches used in most mobile applications, (automotive, agriculture, construction equipment) do not use friction material.Their cycle requirements tend to be lower than industrial clutches, and their cost is more sensitive. Also, many mobile clutches are exposed to outside elements, so by not having friction material, it eliminates the possibility of swelling (reduced torque), that can happen when friction material absorbs moisture. HOW DOES IT WORKS The clutch has four main parts: field, rotor, armature, and hub (output) . When voltage is applied the stationary magne tic field generates the lines of flux that pass into the rotor. (The rotor is normally connected to the part that is always moving in the machine. The flux (magnetic attraction) pulls the armature in contact with the rotor (the armature is connected to the component that requires the acceleration), as the armature and the output start to accelerate. Slipping between the rotor face and the armature face continues until the input and output speed is the same (100% lockup). The actual time for this is quite short, between 1/200th of a second and 1 second. Disengagement is very simple. Once the field starts to degrade, flux falls rapidly and the armature separates.One or more springs hold the armature away from the rotor at a predetermined air gap. Engagement time There are actually two engagement times to consider in an electromagnetic clutch. The first one is the time that it takes for a coil to develop a magnetic field, strong enough to pull in an armature. Within this, there are two factors to consider. The first one is the amount of ampere turns in a coil, which will determine the strength of a magnetic field. The second one is air gap, which is the space between the armature and the rotor. Magnetic lines of flux diminish quickly in the air..Air gap is an important consideration especially with a fixed armature design because as the unit wears over many cycles of engagement the armature and the rotor will create a larger air gap which will change the engagement time of the clutch. In high cycle applications, where registration is important, even the difference of 10 to 15 milliseconds can make a difference, in registration of a machine. Even in a normal cycle application, this is important because a new machine that has accurate timing can eventually see a â€Å"drift† in its accuracy as the machine gets older.The second factor in figuring out response time of a clutch is actually much more important than the magnet wire or the air gap. It involves cal culating the amount of inertia that the clutch needs to accelerate. This is referred to as â€Å"time to speed†. In reality, this is what the end-user is most concerned with. Once it is known how much inertia is present for the clutch to start then the torque can be calculated and the appropriate size of clutch can be chosen. Most CAD systems can automatically calculate component inertia, but the key to sizing a clutch is calculating how much inertial is reflected back to the clutch or brake.To do this, engineers use the formula: T = (wk2 ? ?N) / (308 ? t) Where T = required torque in lb-ft, WK2 = total inertia in lb-ft2, ? N = change in the rotational speed in rpm, and t = time during which the acceleration or deceleration must take place. There are also online sites that can help confirm how much torque is required to accelerate a given amount of inertia over a specific time. Circuit design and analysis OBJECTIVE A control circuit is to be designed to control the motor and drive unit. The Design specifications are to be fully implemented.An incomplete circuit and equipments are given and once it is understood appropriate values for the different components should be decided. These values should allow the circuit to perform as specified. Design Specification A circuit is to be designed which is 1. Allows the angular speed of the motor to build up to a value of 20 revolutions per minute (rpm), in a time of 2 seconds (s). 2. Maintains the angular speed of 20 rpm for a time of 3s. 3. When clutch pedal is pressed it brings the machine to a halt in a time of 1s. 4.Builds up the angular speed again to 20 rpm, in a time of 2s, except this time in the opposite direction. 5. Maintains the angular speed of 20 rpm for a time of 6s. 6. Brings the machine to a halt in a time of 1s. 7. Repeats the cycle above (1-6) indefinitely when powered on. The motor must not be in dynamic braking mode at the same time as it is being driven. CIRCUIT OPERATION The initial design for the complete circuit is shown below. All references to components refer to this circuit diagram. * ANALOGUE SECTION When power is supplied to the circuit the 555 Timer switches on and its output pulses high.The initial high pulse is longer because the 555 Timer is initially at 0V. The capacitor C3 usually charges from 1/3Vcc to 2/3Vcc. However initially it has to charge from 0V to 2/3Vcc. The duration of this initial high pulse is ta = 1. 1(R6 + R7)*C3 After the initial high pulse a constant charge time is the capacitor charge time is given as tc= 0. 693(R6 + R7)*C3 (1) The output of the timer is brought up to +5V by R5. Pin 3 of the 555 Timer is at +5V when the output is at logic high.TR2 is then forward biased due to the fact that it is a NPN transistor and its collector is grounded. TR2 has a base current limiter R4. TR1 has a base current limiter R2. Transistor TR1 is now reversed bias (i. e. it is open circuited) and C1 now charges up via resistor R1. As a result the motor turns on. If suitable values of resistor R1 and capacitor C1 are used then the required waveform will be obtained for the analogue output. The duration of this low pulse is td= 0. 693(R7)*C3 (2) Pin 3 of the 555 Timer goes to 0V.TR2 is then reverse biased due to the fact that it is a NPN transistor and its collector is at +5V. Transistor TR1 is now forward biased (i. e. it is short-circuited) and C1 now discharges. The motor is now switched off. * Digital Section The voltage at the collector of TR2 provides the input clock pulse for IC2, which is configured so that it is triggered on the rising edge. Both the inputs A1 and A2 are always grounded. When the output from pin 3 of the 555 Timer is high the transistor TR2 forward biased. Therefore the input to IC2 is high. It is seen that when this occurs the output Q is high.This in turn becomes a clock signal for the J-K flip- flop (IC3) and provides Logic 1 on one of the OR-gate inputs of IC4. After IC2 is triggered, it remains high fo r a time determined by the formula tw= C2*R8*ln2 (3) C2 and R8 control the length of time of braking as well as switching the direction of the motor. When IC2 is reset a pulse is sent to the negative edge triggered J-K flip-flop (IC3). From the Data sheet for (IC3) it is seen that with the clear high and both the inputs J and K high the JK toggles.Assuming that the initial state of (IC3) is Q = 1 and Q = 0, A is initially at logic 0 and B is at logic 1. Therefore the motor will rotate to the left in an anti-clockwise direction. When IC 2 is being triggered logic 1 will be applied to both of the OR-Gates of IC4. As a result A and B will be high. The motor will now be in dynamic braking mode. When the IC 2 is reset, Q now is logic zero and Q is logic high. Therefore A will be high and B will now be zero. The motor will now run in a clockwise direction. When the IC 2 is re-triggered it will again be in dynamic braking mode.Circuit Simulation PSpice Before building the circuit that the group had modified and it was necessary to simulate its operation to see if the design we had would work correctly i. e. within the parameters. The simulation was carried out in an electrical simulation package Pspice. Pspice is a useful design tool that allows the testing of electrical circuits without the necessity to build them. It allows designs to be modified quickly and easily so that new ideas and improvements can be incorporated, before the circuit is constructed.This saves time and a considerable part of the effort when de-bugging the wiring and operation of the circuit. There were a number of reasons that the group simulated the circuit before going to the actual building stage. The main advantage was that Pspice allowed us to use theoretical values for components so we could get the timing of the circuit-very important in this case- exactly right. Although this does not mean that ‘ideal’ components may be used in practice it allowed us to narrow the range of available components that were required. This saved time when building and testing the circuit.Another advantage was that the wiring of ICs (Integrated circuit) was made simpler because we could use the Pspice schematics as a visual aid COMPONENTS USED Resistors The resistor's function is to reduce the flow of electric current. This symbol is used to indicate a resistor in a circuit diagram. There are two classes of resistors; fixed resistors and the variable resistors. They are also classified according to the material from which they are made. The typical resistor is made of either carbon film or metal film. There are other types as well, but these are the most common.Fixed ResistorsA fixed resistor is one in which the value of its resistance cannot change. Carbon film resistorsThis is the most general purpose, cheap resistor. Usually the tolerance of the resistance value is  ±5%. Power ratings of 1/8W, 1/4W and 1/2W are frequently used. Carbon film resistors have a disadvantage ; they tend to be electrically noisy. Metal film resistors are recommended for use in analog circuits. The physical size of the different resistors is as follows. METAL FILM RESISTOR| | Metal film resistors are used when a higher tolerance (more accurate value) is needed.They are much more accurate in value than carbon film resistors. They have about  ±0. 05% tolerance. They have about  ±0. 05% tolerance. Resistors that are about  ±1% are more than sufficient. Ni-Cr (Nichrome) seems to be used for the material of resistor. The metal film resistor is used for bridge circuits, filter circuits, and low-noise analog signal circuits. From the top of the photograph 1/8W (tolerance  ±1%) 1/4W (tolerance  ±1%) 1W (tolerance  ±5%) 2W (tolerance  ±5%)| Rough size| Rating power (W)| Thickness (mm)| Length (mm)| | | 3| 1/4| 2| 6| 1| 3. 5| 12| 2| 5| 15| |VARIABLE RESISTORThere are two general ways in which variable resistors are used. One is the variable resistor which value is eas ily changed, like the volume adjustment of Radio. The other is semi-fixed resistor that is not meant to be adjusted by anyone but a technician. It is used to adjust the operating condition of the circuit. Capacitors The capacitor's function is to store electricity, or electrical energy. The capacitor also functions as a filter, passing alternating current (AC), and blocking direct current (DC). This symbol is used to indicate a capacitor in a circuit diagram.The capacitor is constructed with two electrode plates facing each other, but separated by an insulator. When DC voltage is applied to the capacitor, an electric charge is stored on each electrode. While the capacitor is charging up, current flows. The current will stop flowing when the capacitor has fully charged. Electrolytic Capacitors (Electrochemical type capacitors) The most important characteristic of electrolytic capacitors is that they have polarity. They have a positive and a negative electrode. [Polarised] This means that it is very important which way round they are connected.If the capacitor is subjected to voltage exceeding its working voltage, or if it is connected with incorrect polarity, it may burst. It is extremely dangerous, because it can quite literally explode. Make absolutely no mistakes. Generally, in the circuit diagram, the positive side is indicated by a â€Å"+† (plus) symbol. Electrolytic capacitors range in value from about 1 µF to thousands of  µF. Ceramic capacitors Ceramic capacitors are constructed with materials such as titanium acid barium used as the dielectric. Internally, these capacitors are not constructed as a coil, so they can be used in high frequency applications.Typically, they are used in circuits which bypass high frequency signals to ground. These capacitors have the shape of a disk. Their capacitance is comparatively small. TRANSISTORSThe transistor's function is to amplify an electric current. Many different kinds of transistors are used in ana log circuits, for different reasons. This is not the case for digital circuits. In a digital circuit, only two values matter; on or off. The amplification abilitiy of a transistor is not relevant in a digital circuit. In many cases, a circuit is built with integrated circuits(ICs). Transistors are often used in digital circuits as buffers to protect ICs.For example, when powering an electromagnetic switch (called a ‘relay'), or when controlling a light emitting diode. (In my case. ) Two different symbols are used for the transistor. PNP type and NPN type INTEGRATED CIRCUITSAn integrated circuit contains transistors, capacitors, resistors and other parts packed in high density on one chip. Although the function is similar to a circuit made with separate components, the internal structure of the components are different in an integrated circuit. The transistors, resistors, and capacitors are formed very small, and in high density on a foundation of silicon.They are formed by a v ariation of printing technology. There are many kind of ICs, including special use ICs. DIODEA diode is a semiconductor device which allows current to flow through it in only one direction. Although a transistor is also a semiconductor device, it does not operate the way a diode does. A diode is specifically made to allow current to flow through it in only one direction. Some ways in which the diode can be used are listed here. A diode can be used as a rectifier that converts AC (Alternating Current) to DC (Direct Current) for a power supply device.Diodes can be used to separate the signal from radio frequencies. Diodes can be used as an on/off switch that controls current. This symbol is used to indicate a diode in a circuit diagram. The meaning of the symbol is (Anode)(Cathode). Current flows from the anode side to the cathode side. RELAYThe relay takes advantage of the fact that when electricity flows through a coil, it becomes an electromagnet. The electromagnetic coil attracts a steel plate, which is attached to a switch. So the switch's motion (ON and OFF) is controled by the current flowing to the coil, or not, respectively.A very useful feature of a relay is that it can be used to electrically isolate different parts of a circuit. It will allow a low voltage circuit (e. g. 5VDC) to switch the power in a high voltage circuit (e. g. 100 VAC or more). The relay operates mechanically, so it can not operate at high speed. | WIRING MATERIALWire is used to electrically connect circuit parts, devices, equipment etc. There are various kinds of wiring materials The different types of wire can be divided largely into two categories: single wire and twisted strand wire, single wire is used to connect devices (resistors, capacitors etc. together on the PWB. It is also used for jumper wiring. Twisted strand wire can bend freely, so it can be used for wiring on the PWB, and also to connect discrete pieces of equipment. If single wire is used to connect separate equip ment, it will break soon, as it is not very flexible. It is convenient to use the single tin coated wire of the diameter 0. 32 mm for the wiring of PWB. If the diameter is larger, soldering becomes a little bit difficult. And if the diameter is too thin, it becomes difficult to bend the wire the way you want it to stay.DiscussionsElectro-Magnetic CompatibilityElectromagnetic compatibility is a field which is becoming ever more important in the modern world as the use of electronic devices becomes even more widespread. It refers to the effect of electromagnetic waves on an electrical device and the degree to which this device affects other devices in the neighbourhood. This interference can act in a number of ways. Conduction – the interference occurs because of a current flow into the circuit from an external source or from one part of the circuit to another via an unintended path. e. g. a loose wire.Inductive coupling – the interference is caused by a magnetic field i n the neighbourhood of the device. This can affect the electrons flowing in the wires of the device. Capacitive coupling – the interference is caused by an electric field in the vicinity of the device. This also affects the current flowing in the device. Radiation – this type of interference is caused by waves in the electromagnetic spectrum. One example of this is radio waves being affected by radiation from a nearby mobile phoneIn the control circuit for the de-burring machine there were very few sources of EM interference.The voltage levels used meant that any waves generated would probably not be of sufficient power to affect external devices. The time was not available to measure the interference being generated by the control circuit but if a real company was planning to develop this product they would have to test it thoroughly to ensure that no compatibility problems would exist under normal operating conditions. For example in a factory environment it is possi ble that the circuit could be placed near sensitive devices such as computers.The reverse is also true the manufacturer must check to ensure that the circuit is not adversely affected by the other forms of EM interference generated in the workplace by devices such as robots, air conditioning systems and motors. One advantage of the control circuit for the de-burring machine is that it is very compact so it would therefore not be too expensive to construct a case which would shield the device from external sources of EM waves and also contain any emissions generated by the device. It would also be possible to put a filter on the analogue output from the circuit to remove any noise being picked up by the circuit.This would ensure that the analogue output was not seriously affected; however it is not really necessary. The analogue output level for the device was chosen to be 1. 2V because this gives a relatively low RPM however it could be raised so that any noise picked up would only alter the analogue output by a very small percentage. The gearing could then be adjusted to give the correct speed. The largest source of EM emissions from the de-burring machine would probably be the motor itself. This is because of the magnetic fields generated by the rotor and stator coils.As stated on the motor data sheet no testing has been carried out on the EMC of the motor but no effect has been noticed on the circuit. The simplest solution to any problems caused by the motor would be to place some form of shielding around the motor or to place the motor a distance away from the control circuit. GearingThe motor and control unit used in the construction of the circuit was not suitable for operation at the low RPM required for the drum of the de-burring machine. The lowest voltage possible speed input to the control unit was 500 rpm when the input voltage was 1V.In order to scale down the speed of the drum it was decided to use a gearing unit. In order to meet the specificati ons of the design brief it is required to drop the speed of the motor to 20rpm. Given the current design of the circuit the output voltage of 1. 2V gives a speed of 800rpm. This means that a gear ratio of 800:20 or 40:1 is required. This can be achieved by using two gear wheels with diameters in the ratio 40:1 but this would not be practical as it would require one wheel to be a great deal larger than the other. Using 2 gear wheels would also result in the drum turning in the opposite direction and this is undesirable.Gear TrainsAnother possible gear combination to achieve the required reduction in speed would be to use three cogs. The first two would be in the ratio 8:1 and then the second two in the ratio 5:1. To achieve this a ‘gear train’ would have to be formed as shown in figure 5. 1. This would save space and also correct the problem of the drum rotating in the wrong direction as the second cog would reverse the direction then the third would return it to normal. Planetary GearingAn even more compact method of gearing would be to use what is known as a planetary gear.In this type of gearing mechanism the smaller cogs are fitted inside the larger cogs as shown in figure 5. 2 below. The red cogs are held stationary and the yellow gear is connected to the input. This saves space by having the input and output on the same axis and also makes the mechanism more robust by using three central gears instead of one. This would reduce the servicing required by the machine which is an important consideration in industry. The red and yellow gears would be in the ratio of 5:1 and the blue and red gears would have to be in the ratio 8:1 to give the required 40:1 reduction.Worm GearsThe final type of gear to be considered is the worm gear (figure 5. 3). In this system the reduction factor can be very large which would allow one cog to make the 40:1 reduction? Worm gears also have the useful property of being one way. The angle between the worm and the gea r teeth is such that the worm can turn the gear but the gear cannot be used to turn the worm. This would be particularly useful as an additional form of braking for the drum of the de-burring machine however the circuit would have tobe re-designed to slow the analogue output from its full voltage to zero gradually.If this were not done the gears would lock when the motor stopped and the sudden jerk would place a great stress on the components. If the circuit was to be re-designed as suggested the dynamic braking of the motor would be redundant. Improvements to DesignAfter completion of the circuit it was evident that a number of improvements could be made to the design that would make the circuit more versatile or better suited to its task. These will be covered in this section with the aim of showing possible routes for further development of the circuit. Had time permitted some of these could have been tried in the laboratory.Perhaps the simplest of the possible routes for improvi ng the circuit is the replacement of resistors R6 and R6 with variable resistors. This would allow the forward and reverse times for the drum spinning to be altered. In this way the most suitable length of time for the parts to be de-burred can be found without the need to re-build the circuit. It would also mean that different components, requiring different lengths of time, could be de-burred in the same machine, although not at the same time. This would allow the machine to be more flexible and save the company money.By using variable resistors the times could also be fine tuned to compensate for any errors in the timing caused by the tolerances of the components used and also any extra resistance caused by the non-ideal nature of the components. Another improvement to the design would be to eliminate the extended first pulse from the 555 timer which causes the drum to rotate longer on its first cycle. Because the pulse is part of the operation of the 555 timer it is hard to alte r before it affects the analogue out so one solution would be to have some form of clutch system between the drum and motor.This would disengage the drum from the motor at start-up and not allow the drum to be turned until after the first cycle. Some form of circuit could be designed to control the clutch and only engage the motor after the first cycle has passed. Another alternative would be to have the clutch only engage after a set time equal to the duration of the first cycle. This could either be a mechanical or electrical timer and would be required to engage the clutch after 7. 746†¦ +1+8=16. 75sec. Some form of switch could also be incorporated into the circuit to reset the JK flip-flop each time the circuit is switched on.This ensures that the flip-flop always starts in the correct state and that the motor is always turning in the right direction for its first rotations. This switch would also allow the cycle to be restarted without turning the power off. Such a functi on could be simply implemented by connecting the reset pin to +5V via a switch. A final consideration when improving the circuit would be to alter the switching circuit for R6 in such a way that one resistor is always connected and connecting a second resistor in parallel with it alters the total resistance as shown in figure A.A-Alternative Switching CircuitPractical ConsiderationsWhile the motor circuit worked as required in the laboratory test, a number of other factors must be brought into consideration when the circuit is being designed for use in industry. One of the major factors has already been discussed in the section on EMC but there are many more will be briefly covered in this section. One of the most obvious differences between the test equipment and an industrial system is the motor being driven.For safety reasons the motor connected to the circuit was a low power motor but to drive a large drum a larger motor with a higher torque would be required. While the controll er card used can only support motors with an operating voltage up to 30V, a similar controller could be designed to operate at much higher output voltages while still being run off of the same circuit. Another possibility would be to run a number of motors off of on control circuit. This would allow a much greater number of parts to be de-burred without the need for an exceptionally large drum. This would introduce the problem of fan-out however.The relatively low analogue output voltage of 1. 2V would have to be increased if a large number of controller cards were to be driven. The same is true of the voltages from the OR gates controlling direction. This is problem is easily rectified by using op-amps to boost the voltage. When the system is being used in a factory environment there are also a number of environmental issues to be deal with. There could be a great deal of dust or fine particles of metal in the air from the de-burring process, it is also possible that in an automate d process the factory may not be heated.Placing the control circuit in a sealed container can resolve some of these issues, as this will prevent dust from affecting its operation. It would also be possible to incorporate shielding into this casing to improve EMC. The temperature issue is not very important, as it is unlikely that the operating ranges of the IC would be exceeded. For 74 series chips this is in the region of 0-70? C and 54 series chips have an operating range of about –50-120? C. The final consideration when constructing a system for industry would be ease of manufacture.If a large number of these machines were required the circuit would have to be laid out in such a way that it could be easily constructed on printed circuit boards. There are computer programs available to aid the designer in this process and it would be unlikely to cause a major problem. ConclusionsHaving designed and constructed the circuit it was felt that it met all of the given specificati ons although there were still a number of improvements that could have been made. These improvements have been covered briefly in the discussion section and given more time they could have been implemented in the circuit.As already mentioned the only specifications not met were that on start-up the machine should rotate for 3 seconds in one direction before braking and reversing. Using the clutch method mentioned in the discussions could solve this but the design brief given did not extend to cover the drum so has not been included in the final design. During the course of the project a number of other points became evident which greatly ease the process of designing an electronic circuit. Simulation using a computer package such as Pspice saves a considerable amount of time by allowing the circuit to be easily laid out and tested.Any changes required can be made easily without disturbing the rest of the circuit. Another advantage of Pspice is the ability to produce graphs of the ou tputs from the circuit, which can then be scaled, formatted and printed as required. To do this for the actual circuit requires very specialised and expensive equipment. In conclusion, the group felt that all objectives had been met and that the final circuit was successful in fulfilling its role. A number of important lessons were learned about the problems involved in designing a circuit to meet a real-world need and ways of overcoming these problems were found.BILL OF MATERIALS S. NO. | ITEMS| Quantity| PRICE | 1. | motor| 1| | 2. | Diode | | | 3. | capacitor| | | 4. | 555 timer| | | 5. | Relay switch| | | 6. | Coils| | | 7. | resistances| | | 8. | transformer| | | 9. | Wiring materials| | | 10. | Integrated circuit| | | 11. | Wiring board| | | References[1] Schematic Capture with Microsim Pspice Herniter Prentice Hall 3 Ed. Rd P250-252[2] http://www. emclab. umr. edu/An Introduction to EMCUniversity of Missouri-Rolla EMC laboratory[3] http://reality. sgi. com/csp/scvemc/emcdef. tmlEnsuring Compatibility Between the Electromagnetic Environment and Electric and Electrical Devices Kimball William, Chairman, IEEE EMC Education Committee[4] http://www. howstuffworks. com/gears. htmHow gears Work[5]www. scribd . com[6]www. mechanicalprojects. comBackground Reading * Digital Fundamentals Floyd Prentice Hall 7 Edition t h. * Introductory Circuit Analysis Boylestad Prentice Hall 9 Edition t h. * Machine Design – R. K. Rajput. * Kinematics Of Machine – R. S. khurmi. * Automobile Engineering – R. K. Rajput | | |

Exocytosis and the Neuromuscular Junction

Exocytosis and the Neuromuscular Junction: How Does Botox Work? Exocytosis is the process in which secretory vesicles are exported out of the cell membrane. These vesicles contain proteins which are then transported to parts outside the cell (Wilfred D. Stein, 2012). Neurotransmitters are released during this process into the synaptic cleft. These transmitters attract other transmitters to muscle membrane infoldings, which are called junction folds (Etherington & Hong, 2011).They diffuse across the break between the nerve and muscle to activate contraction. The progression in which signals are sent from motor neurons to skeletal muscle fibres to warrant movement of muscles is called neuromuscular junction (Etherington & Hong, 2011). Motor neurons, Schwann cells, muscle fibres and kranocytes are all the different cell types that make up the neuromuscular junction. Motor neurons send out axons to skeletal muscles where an action potential is passed along the axons.The axons form a syna ptic knob where they send activation signals to muscle ? bres (Etherington & Hong, 2011). Muscles are made up of hundreds of muscle fibres that all contract simultaneously when an action potential signal is transmitted by a motor neuron (Etherington & Hong, 2011). Schwann cells and kranocytes cover the nerve terminal. Schwann cells are a form of glial cells and Kranocytes are a cell  that synthesizes the extracellular matrix and collagen (Etherington & Hong, 2011).Acetylcholine is an important aspect in neuromuscular junction. It is used to transmit signals to muscles to initiate contractions or movement of the muscles. The toxin binds to neurons where it separates. One part cleaves a protein ultimately preventing the deduction process necessary for the release of acetylcholine (Gill, 2004). Botulinum toxin, BOTOX, disrupts the release of acetylcholine so when signals are released to muscles, they can’t attach anywhere on the muscle causing the muscle to not contract, effec tively paralyzing the muscle (Gill, 2004).Because of this process, botulinum toxin has been used to treat many different disorders characterized by muscle contractions. BOTOX is a type of botulinum toxin that is used to treat spastic equinus gait in people with cerebral palsy. It is used due to its ability in decreasing spasticity and improving ambulation in those with cerebral palsy. Botulinum toxins block the release of acetylcholine in the neuromuscular junction which in turn helps people who have cerebral palsy manage their spasticity (Kim, Shin, Kwon, Kim, Jung, Bang, 2010).Neuronox is another drug used like BOTOX which improves spastic equinus and has been tested to be just as safe and reliable as BOTOX. Neuronox is another botulinum toxin which interrupts the nerve connection to muscles resulting in a localized reduction in muscle activity (Kim, Shin, Kwon, Kim, Jung, Bang, 2010). Overall, exocytosis and BOTOX are both connected to the neuromuscular junction while BOTOX is al so connected to the treatment of spastic equinus gate in cerebral palsy.

Business Capstone Video Assignment Example | Topics and Well Written Essays - 2000 words

Business Capstone Video - Assignment Example CSC Australia Pvt. Ltd. is a company that provides business solutions that are driven by technology. The company mainly caters to the public and private sector in Australia. While balancing the operations and interests of the stakeholders, the company has to face various issues. Michael Horton who works for CSC Australia is one of the key personnel of the company. He manages various accounts f natural resources clients. The government clients are also looked after by him. In an interview, he described the issues being faced by the company. He stated that one of the primary issues of the company is related to liability capping which is negotiated at the start of any contract. Liability capping comes in the form of an agreement which restricts the amount of money that has to be paid by CSC in case the clients sue it during the breach of any contract or negligent of conditions set by a contract. This is an essential tool that helps the company to manage. Liability contracts can be very useful if they are properly evaluated and implemented. The exclusion of liability capping has some implications which can be evaluated. It is essential to understand the primary obligations mentioned in a contract. This can be related to the service that CSC would provide to his clients within the specified deadline. CSC also evaluates the losses that the government has to borne in case if the company fails to deliver the services mentioned in the contract. The magnitude of loss has to be determined. Then, it is the government’s responsibility to mitigate the effects of the loss. In case losses occur, CSC is liable to compensate its clients so that all direct and consequential losses suffered are recovered in the process.

Managerial Economics Master Essay Example | Topics and Well Written Essays - 500 words

Managerial Economics Master - Essay Example The current account contains the import and export items of goods and services as well as transfer payments including net investment income. Deficit in current account is often regarded as problematic. The existence of current account deficit often signifies negative perception in the attractiveness of a country's commodities and investment instruments. However, it is also important to look at the causes of the current account deficit being experienced by US. The current account deficit being experienced by the United States can be attributed to the "expansion of the fiscal deficit, decline in private saving rate, productivity growth, slump in foreign domestic demand, and improvements in global financial intermediation" (Ferguson). The current account is also largely attributed to the appreciation of the US dollar relative to other currencies. The attractiveness of dollar in the global market dampened the demand for US commodities which highly discourages the exports of US commodities. In contrast, imports appear cheap to US residents. The International Monetary Fund expressed that the current account deficit in the US is not a current problem.

Decision and accounting making Essay Example | Topics and Well Written Essays - 2500 words - 1

Decision and accounting making - Essay Example From the below income statement summary, Waldron’s sales have been rising almost in all the four categories of products that they deal in. It is evident that Waldron has been experiencing significance growth as per the divisional summary report. Durafit has been hit with several market challenges including stiff competition from foreign markets. This can be witnessed even with the latest financial report that shows Durafit’s sales drop from 1, 332 million euros in the year 2012 to 1,214 million euros in the year 2012; this represented a decrease of 9%. Durafit has been struggling to come into the market as an active player but there are some issues that still hold the division. The decrease in sales also saw Durafit record low profit margin at the end of the year 2013 as compared to the year 2012. Durafit’s main challenge is the nature of its products versus customers’ taste. Durafit took time in adjusting to modern construction techniques which gave its major competitors time to adjust and conquer the market with modern building techniques. The division’s profit margin was up by 1% when both 2012 and 2013 are compared. This is one of the Waldron’s divisions that give the company an interest to continue in business. With its nature of operations, Contracts at one time experienced downfall in the U.K market which posed a threat in attaining its profits. With opening of its branch outside the U.K and completion of major projects ahead of schedule, Contracts has won the trust of major clients and has really benefited from this. Contracts’ sales improved greatly from 1,949 million euros to 1,214 million euros in the year 2012 to 2013 respectively; this represented a 12% increase. Gross profit margin was also up from 50% to 54%. This was as a result of opening up for new markets outside the U.K which saw its sales increase as a result of more tender being awarded to the division. Unlike other divisions, elite is one of the

Alternative perspectives of international political economy 1 Essay

Alternative perspectives of international political economy 1 - Essay Example The ultimate generalization that exists within the rational choice model is that the individual or collective will make a choice based upon that which maximizes their overall best interests. However, the authors point to the fact that the rational choice model presents a noted difficulty in the fact that it raises the question of who and what defines the â€Å"public†. Whether or not there is indeed a concerted voice, even within a democratic system is an issue that directly concerns the means through which the rational choice model can be applicable to IPE. The authors reference the case in point of corrupt elected officials acting â€Å"rationally† by accepting bribes and payouts; however, even though this is true with some, the rational choice model inherently breaks down over such mores and norms of character that are exhibited by others who refuse such bribes and payouts. Ultimately what is rational choice for one is not for another; thereby calling into question t he degree and extent to which this can or should be used to define IPE. Constructivism Constructivist theory is introduced as a â€Å"deconstruction† of existing factors. ... ssumptions of constructivist theory, with respect to IPE, can be summarized in the following: 1) ideas, beliefs, values, and identities of individuals and groups are the key to understanding IPE 2) ideas, values, beliefs, and identities are socially constructed 3) ideas, values, etc., are social forces that are more important than military or economic factors 4) conflict and cooperation are products of values and beliefs 5) change can be explained by examining changes in the values and beliefs of individuals and other actors over time. Feminist Critique Within the feminist critique, the authors argue for the fact that IPE is predicated upon the norms, mores of gender roles, stereotypes, patriarchy etc. Moreover, overlooked aspects of IPE are due to the fact that the pervasive sexism has sidelined women over the decades. As such, a focus upon gender, loaded language, subtexts, male dominance of not only society but economic studies especially economics is oftentimes engaged. This is a broad based dynamic that is not succinct and can easily be transitioned to apply in a great litany of different situations. Ultimately, the dynamic through which the decisions of IPE have taken place since the dawn of time have in fact been dominated by men and by a patriarchal sense of sexism. As such, it is perhaps this one approach, of all the others that have been engaged, that has the most to offer with regards to approaching seemingly old issues from a fresh perspective and gaining new insight into them. Hegemonic stability theory Hegemonic stability theory can roughly be defined as the understanding that a given power, invariably rich and powerful, dominates other states for a length of time; instituting norms, expectations, and ultimately collapsing under its own weight. Such a

European Aviation Safety Agency Essay Example | Topics and Well Written Essays - 1500 words

European Aviation Safety Agency - Essay Example It is tasked with promoting the highest possible safety standards, as well as environmental protection in the aviation industry, both in the EU member states, and the world in general. EASA assumed full responsibility in 2008 and took over the functions of JAA (Joint Aviation Authorities). The agency is mandated to undertake the following activities: There are several differences between EASA and JAA. JAA had its head office in Hoofddorp, Amsterdam, while EASA, has its headquarters in Cologne, Germany. In addition, EASA has the legislative mandate within the European Union (EU) by enacting regulations through the European Commission, Council of the European Union and European Parliament. On the other hand, JAA operated products without direct force of law. This means that JAA was not recognized as a legal body; but rather, it was a â€Å"mere cooperation of JAA member countries in the field of civil aviation† (Cristiansen, 2009, p. 61). Moreover, some countries under JAA such as Turkey operated outside the EU, whereas, by definition, EASA is an agency that operates under the EU and other countries adopt its rules and regulations without being forced. The fundamental basis for the formulation of EASA is to ensure mandatory standardization. The agency is the one that gives certification. It also â€Å"acts as the authority in the field of airworthiness and continuing airworthiness† (Cristiansen, 2009, p. 62). EASA has authority over new types of certificates and other designs that pertain to airworthiness approvals for aircrafts, engine, propellers and components. The agency works hand in hand with the National Aviation Authorities (NAAs) of the European Union members. However, EASA has virtually taken over most functions from NAAs so as to ensure uniformity of standards across the EU. EASA also has an important part in helping the European Commission negotiate and

Annotate bibliography Essay Example | Topics and Well Written Essays - 250 words

Annotate bibliography - Essay Example Thus, all the authors were accredited medical practitioners in wellness programs. Consequently, all the articles selected were secondary sources since information pertaining to workplace wellness programs were derived from pre existing data of existing employer workplace programs. The article delves into the identification of risk factors affecting employee health, and consequently formulating appropriate mitigation mechanisms that are concomitant to workplace lifestyle and logical change process. Moreover, the authors have cited employer initiatives for actively involving and engaging workers in the wellness program. The sole aim is for workers to have a healthier personal outlook, minimize workplace stress and better working environment. Consequently, intervention wellness programs highlighted include the creation of health education plan against smoking, healthy nutrition choice, weight loss program, control of alcohol consumption, and individual stress reduction regiments. Lastly, the article defines the ultimate goals employee wellness programs. These are to increase employer and employee satisfaction through the decrease in absenteeism, enhanced productivity, and better interpersonal relationship between all the actors in the work environment. The article reiterates the importance of wellness programs to both employees and community at large. Consequently, the authors state that workplace health and wellness programs extends to the community by raising awareness on preventive measures for common diseases, like diabetes, obesity, cardio vascular disease, and high blood pressure. Furthermore, Edelman et al. emphasize on the importance of creating wellness as well as motivating employees to participate in the program. Thus, the authors recommend employee programs such as flexible work hours, sufficient break periods, psychosocial support, and reward systems for workers actively involved in the wellness

Lord of the Flies Challenge Project Essay Example for Free

Lord of the Flies Challenge Project Essay Any of several mammals of the family Suidae, having short legs, cloven hooves, bristly hair, and a cartilaginous snout used for digging, especially the domesticated hog, Sus scrofa domesticus, when young or of comparatively small size. Even though a pig is one animal, they have several symbolic meanings. The various meanings of pigs change from region or culture though. In an earlier culture such as the Ancient Egyptians the pig was a symbol for fertility. Here, the pig was sacred to Isis, a fertility goddess of the Ancient Egyptians. In many other cultures the pig represents strength, and vitality. In the Native American culture the Indians would use a pig to sacrifice to the rain Gods in order for their crops to grow. This is another example of pigs being used to represent growth and fertility. Pigs are not always viewed as a good thing though. In the Jewish and Islamic cultures pigs are viewed as unclean and therefore they are forbidden to eat pork. And in an interesting note, in dream symbolism domestic pigs indicate fertility but a wild pig represents overindulgence and lust. This relates to Lord of the Flies in the sense that Jack never wanted to give up his passion for hunting. He became greedy and his desire to hunt inevitably lead to the separation of the group. In the Christian religion pigs are associated with gluttony. In Lord of the Flies Simon is the Christ like figure and when he views the decaying pig head he becomes nauseated. Christians believe that a pig is in common relation with the Devil. In Lord of the Flies it shows the struggle between good and evil, Christianity and the devil. Jack and his followers use the pig as a sacrifice to the â€Å"Beast† and this is an example of the loss of religion in the novel. This is another reason why a pig is not considered a positive thing in Christianity because the main reason Jesus came around was due to the overwhelming practice of sacrificial acts to Pagan Gods. When Jack renews this blasphemous act, Simon was killed shortly after which confirmed the loss of religious values on the island. Here are examples from the bible prohibiting the digestion pigs. Of their flesh shall ye not eat, and their carcass shall ye not touch, they are unclean to you.(Leviticus 11:7-8) and And the swine, because it divideth the hoof, yet cheweth not the cud, it is unclean unto you. Ye shall not eat of their flesh, nor touch their dead carcass.(Deuteronomy 14:8). In folklore, superstitious sailors would not sail on a boat with a pig aboard. And often time’s sailors would refuse the admittance of pigs on their vessels. Sailors associated the hooves on pigs to the hooves on the devil. Because of this bad omen, if a sailor were to see a pig on their way to work, they would rather turn around and go home. This further explains the theme of the devil in Lord of the Flies. Even though it seems impossible for evil to be involved with young boys, it certainly was proven in this novel. Simon was an innocent little boy and when he was in the jungle the Lord of the Flies was talking to him. Obviously, the pig’s head was NOT talking to him but it shows that Simon’s subconscious talking to him. This shows that even the most innocent has an innate sense of evil in them. When Simon is in the jungle, this is when the reader realizes that the â€Å"beast† is not an external force but that it is part of the boys themselves, which is even more frightening. â€Å"Fancy thinking the beast was something you could hunt and kill! Ãâ€" You knew, didnt you? Im part of you? (p. 143). In Lord of the Flies the pig represents the evil that lies within every person, innocent or not. The pig becomes a game, no longer being a hunt for sustenance. As mentioned earlier, Jack wanted more. He became greedy and his hunts led all of the boys to shift from being playful little boys to savages. That is why in the Christian religion pigs are not appreciated. They are unclean, which in the novel the pig is described as disgusting with the flies hovering around it and black grime in its teeth. The Muslim religion views the pig in the same manner. It is interesting though to compare the thoughts of modern religions to the ancient ideas of pigs. In the ancient cultures like the Greeks, Egyptians and Romans the pig was seen as a fertile being and therefore they were heavily worshiped in order for their own people to experience the gift of fruitful abundance. The literal translation of the Lord of Flies is Beelzebub which is Hebrew for the Devil. The Lord of the Flies has the theme of religion in it, and the pig’s head plays an important part in allowing the shift of innocence to evil to be seen easily to the reader. Due to the many symbolic meanings of pigs in various cultures, there is no definite idea of what a pig stands for. In Lord of the flies though, the pig demonstrates the evil that each of the boys was capable of undergoing.

Efficient managers and effective managers

Efficient managers and effective managers Difference between efficient managers and effective managers Effectiveness and efficiency are mutually exclusive things. For a manager, they are both fundamental preconditions. Being effective means that one is able to properly analyse the evolving environment and selecting the right things as the areas of strategic focus for the enterprise. On the other hand, being efficient requires a carefully carved cultural and operational framework which helps the manager to achieve a particular degree of success, given the level of resources applied to a particular objective. In any business, an efficient manager is one who uses limited resources available viz., time, material and men to get the job done in a more professional manner. This includes securing productive and profitable results in a short span, using funds allotted for a business more legibly yet smartly, and appraising employee performance etc., In other words, an efficient manager would keep the business running even in dire circumstances. An effective manager, on the other hand, is slightly different from the efficient one. The effective manager focuses on productivity rather than increased/balanced profitability. Effective management has various layers in its setup such as motivation, teamwork, communication and objectives. An effective manager is someone who leads, coordinates and filters various activities of the sub-ordinates and decides an appropriate mechanism to work upon. An effective manager usually works without any constraints such as funds, manpower etc. The focus always implies on better management practices and in turn, better output. Effectiveness is a precondition for the success of any manager; however that depends more upon the uncontrollable variables dictated to the manager by the operational environment and his ability to come up with the right choices that would suit his resources built over time. It may be appreciated that a firms resources in terms of manpower and technology as well as capital would have been built up over time and they have a great degree of rigidity. Once you become effective, efficiency can be an easier thing to bring into operation. The two things are in fact complimentary. Efficiency in fact depends upon the lower level managerial abilities and culture while effectiveness is almost always a top management variable. In management, operating in efficient and in effective ways is a key to good performance and to successfully reaching the goals set for the business. While efficiency and effectiveness are similarly desirable characteristics of business behavior, either one is often seen as attainable only at the expense of the other. Looking at the interplay of the two characteristics can give a clear insight into the ideal behavior for a manager when faced with tasks which must be completed quickly, but also completed in such a way that the key goals are attained. Luther Gulick advocates seven elements which make up common management in any organization. He calls it the POSDCORB. Planning a strategy to accomplish the objectives set for an enterprise. Organizing a formal structure of authority, arranged and defined for specific jobs. Staffing / Recruiting and training personnel. Directing/ Decision making and embodying rules, instructions etc., Co-ordinating various parts of work. Reporting through records, research and inspection. Budgeting in form of fiscal planning, accounting and control. These make up the common administrative tasks managers perform in an organization. The effectiveness of each element makes up both an efficient and effective management system. The following make up management behavior. Management of human resources is a social phenomenon. An effective communication channel is always imperative in any kind of an organization. James Pfiffner calls it the heart of management. Chester Barnard remarks it as the foundation of co-operative group activity. For an effective communication, the information passed on must be clear, consistent, adequate, timely, uniform, flexible and acceptable. A manager must make sure that a proper communication channel is present in an organization. This includes avoiding semantic and ideological barriers, two-valued thinking (Halo effect), stereotyping and dogmatism among the employees. Decision-making is a vital part of an efficient management system. Robert Tannenbaum says decision-making involves a conscious choice or selection of one behavior alternative from a group of two or more behavior alternative. A behavior alternative may simply be known as a decision. Decision-making, in more ways or the other, is a singular function of the manager. It is thus very important in an organization. Herbert Simon came up with the fact that every decision has two basic premises a factual premise and a value premise. A fact is a statement of reality while a value is an expression of preference. A manager would go by decisions based on these only. An effective manager goes in for the factual premise because it can be measured empirically, while the value premise, which may determine efficient factors such as profit, loss, employee satisfaction, cost-cutting etc., would be more preferred by efficient managers. Rensis Likert calls motivation as the core of management. Motivation is a psychological process which energizes and activates an individual to achieve formulated objectives. A manager thus plays a vital role as a driving force behind motivation. On this part, both effective and efficient managers must be good motivators, so as to bring about the best in the employees. Classical and modern management thinkers have listed money and a variety of socio-psychological factors as a source of motivation. Motivation also helps to build teams and perform better. Teamwork is another essential part of management. A manager is the undisputed leader of a team. He delegates work to his sub-ordinates, assigns tasks, creates plans and makes decisions. An autocratic manager would do all the above functions by himself. It is not desirable in an effective organizational system. On the other hand, an efficient manager would tend to be a little autocratic in his functions, because of the limited resources available and some other constraints. It is however better for an organization to be more democratic for proper functioning. Importance Managing effectively and efficiently is the way to go about in business. Efficient business tactics would help to know how to deal with finance and personnel in a more productive way. Most successful businesses in the world today are rather efficient than effective. Efficient management practices provide increased sustainability and stability in an organization. It involves novelty in management practices and output. An effective management system takes a long time to fully materialize. It has more to do with the long-term vision of an organization than its present objectives. Effective management also involves setting time benchmarks within the organization, so that a given objective gets completed within a set time. Traditional management practices are usually followed, and the manager sets up an instructional framework within which the sub-ordinates are expected to follow. An effective management system, summarily can be defined as, one which Raises productivity Increases work output from sub-ordinates Functions within a set of rules and regulations Works in a more democratic manner Builds teamwork and effective communication channels A good manager, therefore is one who works both efficiently and effectively simultaneously. It is imperative that he does work in a more systematic manner and adapts himself depending on the organizational situation and environment. What an organization / business would need is an effective mechanism and an efficient output.

Relationship Between Building, Dwelling and Notion of Home

Relationship Between Building, Dwelling and Notion of Home Discuss the relationship between building, dwelling and the notion of home, drawing on ethnographic examples, Understanding building as a process enables architecture to be considered as a form of material culture. Processes of building and dwelling are interconnected according to Ingold (2000), who also calls for a more sensory appreciation of dwelling, as provided by Bloomer and Moore (1977) and Pallasmaa (1996) who suggest architecture is a fundamentally haptic experience. A true dwelt perspective is therefore established in appreciating the relationship between dwelling, the notion of home and how this is enframed by architecture. We must think of dwelling as an essentially social experience as demonstrated by Helliwell (1996) through analysis of the Dyak Longhouse, Borneo, to enable us to harbour a true appreciation of space devoid of western visual bias. This bias is found within traditional accounts of living space (Bourdieu (2003) and Humphrey (1974)), which do however demonstrate that notions of home and subsequently space are socially specific. Life activities associated with dwell ing; sociality and the process of homemaking as demonstrated by Miller (1987) allow a notion of home to be established in relation to the self and haptic architectural experience. Oliver (2000) and Humphrey (2005) show how these relationships are evident in the failures of built architecture in Turkey and the Soviet Union. When discussing the concept of building, the process is twofold; The word building contains the double reality. It means both the action of the verb build and that which is builtboth the action and the result (Bran (1994:2)). With regards to building as a process, and treating that which is built; architecture, as a form of material culture, it can be likened to the process of making. Building as a process is not merely imposing form onto substance but a relationship between creator, their materials and the environment. For Pallasmaa (1996), the artist and craftsmen engage in the building process directly with their bodies and existential experiences rather than just focusing on the external problem; A wise architect works with his/her entire body and sense of selfIn creative workthe entire bodily and mental constitution of the maker becomes the site of work. (1996:12). Buildings are constructed according to specific ideas about the universe; embodiments of an understanding of the wo rld, such as geometrical comprehension or an appreciation of gravity (Lecture). The process of bringing structures into being is therefore linked to local cultural needs and practices.[1] Thinking about the building process in this way identifies architecture as a form of material culture and enables consideration of the need to construct buildings and the possible relationships between building and dwelling. Ingold (2000) highlights an established view he terms the building perspective; an assumption that human beings must construct the world, in consciousness, before they  can act within it. (2000:153). This involves an imagined separation between the perceiver and the world, upon a separation between the real environment (existing independently of the senses) and the perceived environment, which is constructed in the mind according to data from the senses and cognitive schemata (2000:178). This assumption that human beings re-create the world in the mind before interacting with it implies that acts of dwelling are preceded by acts of world-making (2000:179). This is what Ingold identifies as the architects perspective, buildings being constructed before life commences inside; the architects perspective: first plan and build, the houses, then import the people to occupy them. (2000:180). Instead, Ingold suggests the dwelling perspective, whereby human beings are in an inescapable cond ition of existence within the environment, the world continuously coming into being around them, and other human beings becoming significant through patterns of life activity (2000:153). This exists as a pre-requisite to any building process taking place as part of the natural human condition.; it is because human beings already hold ideas about the world that they are capable to dwelling and do dwell; we do not dwell because we have built, but we build and have built because we dwell, that is because we are dwellersTo build is in itself already to dwellonly if we are capable of dwelling, only then can we build. (Heidegger 1971:148:146, 16) (2000:186)). Drawing on Heidegger (1971), Ingold (2000) defines dwelling as to occupy a house, a dwelling place (2000:185). Dwelling does not have to take place in a building, the forms people build, are based on their involved activity; in the specific relational context of their practical engagement with their surroundings. (2000:186). A cave or mud-hut can therefore be a dwelling.[2] The built becomes a container for life activities (2000:185). Building and dwelling emerge as processes that are inevitably interconnected, existing within a dynamic relationship; Building then, is a process that is continuously going on, for as long as people dwell in an environment. It does not begin here, with a pre-formed plan and end there with a finished artefact. The final form is but a fleeting moment in the life of any feature when it is matched to a human purposewe may indeed describe the forms in our environment as instances of architecture, but for the most part we are not architects. For it is in the very process of dwelling that we build. (2000:188). Ingold recognises that the assumptive building perspective exists because of the occularcentristic nature of the dominance of the visual in western thought; with the supposition that building has occurred concomitantly with the architects written and drawn plan. He questions whether it is necessary to rebalance the sensorium in considering other senses to outweigh the hegemony of vision to gain a better appreciation of human dwelling in the world. (2000:155). Understanding dwelling as existing before building and as processes that are inevitably interconnected undermines the concept of the architects plan. The dominance of visual bias in western thought calls for an appreciation of dwelling that involves additional senses. Like the building process, a phenomenological approach to dwelling involves the idea that we engage in the world through sensory experiences that constitute the body and the human mode of being, as our bodies are continuously engaged in our environment; the world and the self inform each other constantly (Pallasmaa (1996:40)). Ingold (2000) recommends that; one can, in short, dwell just as fully in the world of visual as in that of aural experience (2000:156). This is something also recognised Bloomer and Moore (1977), who appreciate that a consideration of all senses is necessary for understanding the experience of architecture and therefore dwelling. Pallasmaa (1996) argues that the experience of architecture is multi -sensory; Every touching experience of architecture is multi-sensory; qualities of space, matter and scale are measured equally by the eye, ear, nose, skin, tongue, skeleton and muscleArchitecture strengthens the existential experience, ones sense of being in the world and this is essentially a strengthened experience of the self. (1996:41). For Pallasmaa, architecture is experienced not as a set of visual images, but in its fully embodied material and spiritual presence, with good architecture offering pleasurable shapes and surfaces for the eye, giving rise to images of memory, imagination and dream. (1996:44-45). For Bloomer and Moore (1977), it is architecture that provides us with satisfaction through desiring it and dwelling in it (1977:36). We experience architecture haptically; through all senses, involving the entire body. (1977:34). The entire body is at the centre of our experience, therefore the feeling of buildings and our sense of dwelling within them arefundamental to our architectural experience (1977:36).[3] Our haptic experience of the world and the experience of dwelling are inevitably connected; The interplay between the world of our bodies and the world of our dwelling is always in fluxour bodies and our movements are in constant dialogue with our buildings. (1977:57). The dynamic relationship of building and dwelling deepens then, whereby the sensory experience of architecture cannot be overlooked. It is the experience of dwelling that enables us to build, and drawing and Pallasmaa (1996) and Bloomer and Moore (1977) it is buildings that enable us to hold a particular exper ience of that dwelling, magnifying a sense of self and being in the world. Through Pallasmaa (1996) and Bloomer and Moore (1977) we are guided towards understanding a building not in terms of its outside and the visual, but from the inside; how a building makes us feel.[4]Taking this dwelt perspective enables us to understand what it means to exist in a building and aspects of this that contribute to establishing a notion of home. Early anthropological approaches exploring the inside of a dwelling gave rise to the recognition of particular notions of space that were socially specific. Humphrey (1974) explores the internal space of a Mongolian tent, a family dwelling, in terms of four spatial divisions and social status; The area away from the door, which faced south, to the fireplace in the centre, was the junior or low status halfthe lower halfThe area at the back of the tent behind the fire was the honorific upper partThis division was intersected by that of the male or ritually pure half, which was to the left of the door as you enteredwithin these four areas, the tent was further divided along its inner perimeter into named sections. Each of these was the designated sleeping place of the people in different social roles. (1974:273). Similarly, Bourdieu (2003) analyses the Berber House, Algeria, in terms of spatial divisions and two sets of oppositions; male (light) and female (dark), and the internal organ isation of space as an inversion of the outside world. (2003:136-137).[5] Further to this, Bourdieu concentrates on geometric properties of Berber architecture in defining its internal as inverse of the external space; the wall of the stable and the wall of the fireplace, take on two opposed meanings depending on which of their sides is being considered: to the external north corresponds the south (and the summer) of the insideto the external south corresponds the inside north (and the winter). (2003:138). Spatial divisions within the Berber house are linked to gender categorisation and patterns of movement are explained as such; the fireplace, which is the navel of the house (itself identified with the womb of the mother)is the domain of the woman who is invested with total authority in all matters concerning the kitchen and the management of food-stores; she takes her meals at the fireside whilst the man, turned towards the outside, eats in the middle of the room or in the courtya rd. (2003:136). Patterns of movement are also attributed to additional geometric properties of the house, such as the direction in which it faces (2003:137). Similarly, Humphrey (1974) argues that individuals had to sit, eat and sleep in their designated places within the Mongolian tent, in order to mark the rank of social category to which that person belonged,; spatial separation due to Mongolian societal division of labour. (1974:273). Both accounts, although highlighting particular notions of space, adhere to what Helliwell (1996) recognises as typical structuralist perspectives of dwelling; organising peoples in terms of groups to order interactions and activities between them. (1996:128). Helliwell argues that the merging ideas of social structure and the structure or form of architecture ignores the importance of social process and overlook an existing type of fluid, unstructured sociality (1996:129) This is due to the occularcentristic nature of western thought; the bias of visualism which gives prominence to visible, spatial elements of dwelling. (1996:137). Helliwell argues in accordance with Bloomer and Moore (1977) who suggest that architecture functions as a stage for movement and interaction (1977:59). Through analysis of Dyak peoples lawang (longhouse community) social space in Borneo, without a focus on geometric aspects of longhouse architecture, Helliwell (1996) highlights how dwelling space is lived and used day to day. (1996:137). A more accurate analysis of the use of space within dwelling can be used to better understand the process, particularly with regard to the meanings that it generates in relation to the notion of home. The Dyak longhouse is a large structure built at up to three and a half metres above ground with a thatched roof stretching up to eight metres in height. Within the longhouse are a number of apartments side by side. These are seven names spaces running the length of the longhouse which are described as the inner area of the longhouse; the cooking, eating and sleeping area. An outer gallery are can be used by anyone, freely at anytime. (1996:131-133). Previous structuralist categorisation of these inner and outer areas as public and private domains have led to misrepresentation of relations between individual households and the wider longhouse community (1996:133). Spatial separation lies between us the longhouse community (lawang) and those outside of the longhouse community them. (1996:135). Helliwells recognition of the lack of spatial division within the longhouse community is the primary indicator of a more fluid type of sociality for the Dyak people. She highlights that previous structural approaches denoting each apartment as private has left little awareness of social relationships that operate between apartments, and considers the longhouse as a single structural entity, regardless of the single apartments that it is composed of; relationships are clearly marked: neither the seven spaces, nor the wall between swah (the world out there) and lawang, stop at the edges of any one apartment. Rather, they continue in identical form, into those on either side and so on down the entire length of the longhouse. (1996:137).The partition between apartments in the longhouse marks the edge of one apartment from another which visually appears to separate. However, Helliwell points out that they are composed of weak bark and materials stacked against one another, leaving gaps of all sizes in the partitions. Subsequently, animals pass through, people hand things back and forth and neighbours stand and talk to one another (1996:137-138). She describes the partitions as a highly permeable boundary: a variety of resources moves through it in both directions. (1996:138). It is the permeable partition that is therefore the core of longhouse sociability; its properties stimulate sharing in accordance with a flow of light and sound from one end of the longhouse to the other. (1996:138). A community of voices exists within a longhouse, flowing up and down its length as invisible speakers appear in monologue. The Dyak people, although invisible to one another, speak to their neighbours through these permeable boundaries in continual dialogue; they are profoundly present in one anothers lives. Through the sounds of their voices, neighbours two three, four or five apartments apart are tied into each others worlds and each others company as intimately as if they were in the same room. (1996:138). These voices create what Helliwell describes as a tapestry of sound, containing descriptions of a days events, feelings of individual women shared whilst they are alone in her apartment, subsequently affirming and recreating social connections across each apartment and reaffirming their part within the longhouse community. (1996:138-139). In addition, Helliwell highlights that their voices were not raised; (their) very mutedness reinforced, the sense of membership in an intimate, privileged worldgentle and generous in their reminder of a companionship constantly at hand. (1996:139). Here we begin to see Helliwells notion of fluid sociality and the experience of dwelling as a whole a social one. In addition to sound, the social fluidity of dwelling in a Dyak longhouse is reinforced by light from individual apartments and their hearths flowing up and down the longhouse at night. Each person is aware of their neighbours presence, with the absence of light from an apartment provoking concern. (1996:139). In essence, Helliwell stresses the sociality of dwelling, aside from spatial appreciations of the architecture in which it takes place. Although partitions mark the space of a Dyak household, they concomitantly incorporate a household into the wider longhouse community; It is this dual flow (sound and light) which constitutes each independent household as coterminous with all others and with the longhouse community as a whole. (1996:138). This creation of community brings to light the ways in which people use architecture, not just to mark divisions of space, but to implement and enable sociality. This is highly relevant for a true anthropological appreciation of dwelling and in particular its relationship with the notion of home. Dwelling is inevitably connected to the process of homemaking through its aspects of sociality as a physical and bodily experience within the built (Brand 1994:2) and as a fundamentally social experience. Architecture as a physical form of shelter that enfr ames the process of homemaking; what Ingold (2000) terms life activities (2000:185) and the coming together of people. Through acknowledgement of the social aspects of dwelling we can establish notions of home, which are primarily constructed on the dynamic relationship of building and dwelling and the aspects of sociality that occur through the dwelling process; life activities (Ingold (2000:185) and home-making, involving, kinship, memory, play, eating, ritual, and birth among other anthropological themes. A relationship emerges then, between dwelling and the notion of home, a dynamic relationship facilitated by the built, (Brand (1994:2)) taking place within architecture. Houses are defined by Carsten and Hugh-Jones (1995) as places in which the to and fro of life unfolds, built, modified, moved or abandoned in accord with the changing circumstances of their inhabitants. (1995:1). Home emerges as an architectural space which enframes the processes and characteristics associated with dwelling. Ingold (2000) suggests that a house is made, not constructed (2000:175). More specifically, Miller (1987) draws attention to the process of home-making through which the built becomes a home by a process of consumption and appropriation by tenants on a London council estate in England. He argues that through consumption and appropriation of their domestic space, tenants are able to develop and establish a sense of self (1987:354). This is in response to feeling like passive recipients of housing, alienated from society by being perceived as a particular class and at a level of poverty. (1987:357). Miller argues; on the wholethere was considerable evidence to suggest that the white population felt a deep unease about their household consumption status as tenants, reflected in resentment and feelings of being stigmatised. Furthermore they clearly associated the fitments provided in the kitchen with the council, as objects embodying in their materiality the intrusive signification of their status. (1987:365-366). In response, tenants transformed and changed their kitchens in different ways after having been given the same basic facilities by the council. (1987:356). This included alterations and renovations to fitted cupboards, standard plumbing and energy supplies and original black lino floors in addition to decorations, curtains and new white goods (1987:357). For Miller, kitchens became canvases (1987:360) for the tenants; The largest cluster comprised kitchens where substantial changes had been made to the decorative orderthese kitchens retained the original plain white surfaces. Instead, a large number of additional objects had been brought in and used, as it were, to cover the cupboards up.teatowels, breadboards, teacosies and trays were very common and often associated with a particular aesthetic of large bold flowers, cats, dogs and bright patterns. As well as being placed on surfaces, breadboards and trays were typically placed vertically against the walls with their face forward to emphasise their decorative nature. Post-cards, souvenirs, cuttings from magazines and pictorial calendars might be hung or stuck on the wallsthere was also the biographical patterneach piece appeared to be a momento of family or holidays, as in the commercial nostalgia style in which the relation between objects was maintained in the memories of the occupants but not expressed visually. (1987:361-362). Tenants properties subsequently became personalised, replacing and diverting attention from aspects of their kitchens they saw as indicators of their negative housing status (1987:362).[6] The implementation of kitchen aesthetics and other modes of creativity is one way of home-making, establishing a notion of home in accordance with establishing a sense of self. Connected to this, is the sociality of home making; aspects of marriage and kinship also highlighted by Miller, with females directing and viewed as recipients of expenditure and males undertaking renovations; In two cases i t was particularly clear that the couples were seen as coming together to overcome their status as tenants, and affirming the power of kinship and marriage in this struggle. (1987:367).[7] The notion of home reaffirms the concept that space is socially specific; the process of homemaking as an aspect of dwelling, related to how we live within time and space. When professional architects and builders ignore the needs, obligations and beliefs of socially specific people, the notion of home becoming disrupted, the result is an unsuccessful dwelling place. Oliver (2000) underlines that when the Kutahya Province in Turkey suffered an earthquake in 1970, fifty thousand homeless people were accommodated in fifteen thousand newly built dwellings. (2000:121). He comments that the accommodation, designed by architects, was suitable for the British 2.2 nuclear family as three room, single storey houses, quite unsuited to the extended peasant families, who were used to living on the upper floors of large two storey houses, storage, crops and cattle underneath them.(2002:121). A maximum of eighteen people lived in a house at one time, parents occupying one room, sons, their wives a nd children in others. The sofa was a communal space for meals, and privacy was strictly guarded. (2002:121). The emergency housing was small and unsuitable for the large peasant families; large windows caused them to be on show, there was no sofa and the living room opened on to the bedrooms. The toilet was external and public even though the people were discrete about bodily functions. (2000:121-122). In providing unsuitable buildings inconsiderate towards socially specific ideas of space, earthquake victims had no choice but to accept the offered housing or receive no other help. (2000:122). Oliver (2000) shows the architects failure, who; may design responsibly, but the process fails when he ignores the values, morals, building skills, experience and wisdom of the cultures whose housing needs are to be met. (2000:125). Notions of home can be varied,[8] but home and dwelling are inevitably connected through experiences and particular conceptions of how to dwell in terms of appropriate space and related activities. Other state built homes have caused the notion of home and its relationship with dwelling and architecture to be affirmed. Soviet construction of communal dwellings during the 1920s onwards attempted to impose meaning on inhabitants; that of socialist infrastructure to produce socialist men and women devoid of individuality and a bourgeois way of life (Humphrey (2005:40)). The result was unsuccessful, inhabitants not adopting socialist ways of being, but the meanings the architecture was intended to impose being subverted in Russian fiction and memoirs; example s of Russian imagination.(2005:43).[9] This Soviet example illustrates that meaning cannot be made through architecture and emphasises Miller (1987) and the process of home making. It is the process of home-making; the activities associated with dwelling and the sociality that it generates that establishes a home, a building being merely a container in which this takes place. The relationship between building and home therefore involves how we live in time and space, the process of homemaking challenging the structures that we build. Ingold (2000) suggests that dwelling is something that enables building. The opposite standpoint would be that it is building that enables human beings to dwell within architecture. Whatever ones view, it is inevitable that dwelling takes place, and eventually continues to take place within architecture, whether this is in vernacular form; a cave, hut or a barn, or provided by the nation state. It is a social fact that human beings build and dwell. Building and dwelling are inevitably interconnected, existing in a dynamic relationship with one another. Understanding this from a standpoint lacking in western visual bias, it is the process of dwelling; life activities (2000:185), its sociality and inevitable connection with building that exists in relation to the notion of home. Meaning is not made in the structure of a building it is dwelling; activities and social relations that creates and enables a meaning of home to be established in accordance with the self through haptic archit ectural experience and the home-making process. Pallasmaa (1996) argues that the meaning of a building is beyond architecture; The ultimate meaning of any building is beyond architecture; it directs our consciousness back to the world and towards our own sense of self and being. (1996:42). The relationship is evident when socially specific conceptions of space and inevitably particular notions of home are ignored; the architecture being unsuitable for dwelling, or failing in its primary purpose of imposing meaning. It can be said that building, dwelling and notions of home are united in an overarching relationship between human beings and their lived environment; the search for meaning and establishment of the self, in this case through forms of architectural experience. Bibliography Bloomer, K. Moore, C. (1977) Body, Memory and Architecture, Yale University Press   Bourdieu, P. (2003) The Berber House, in Low, S. Lawrence-Zuniga, D. (eds.) The Anthropology of Space and Place Blackwell, Oxford Brand, S. (1994) How Buildings Learn: what happens after theyre built. Phoenix, London Carsten, J. Hugh-Jones, S. (1995) About the House, Cambridge University Press Heidegger, M. (1971) Building, Dwelling Thinking in Poetry, language thought, trans. A. Hofstadter. New York, Harper and Row in Ingold, T. (2000) The Perception of the Environment Routledge, London. Helliwell, C. (1996) Space and Sociality in a Dyak Longhouse in Jackson, M. (ed.) (1996) Things as they are Bloomington: Indiana University Press Humphrey, C. (1974) Inside a Mongolian Tent in New Society 235-275 Humphrey, C. (2005) Ideology in infrastructure: architecture and Soviet imagination, Journal of the Royal Anthropological Institute 11 (1) 39-58 Ingold, T. (2000) The Perception of the Environment, Routledge, London. Kahn, L. (1973) Shelter, Bolinas, Shelter Publications. Miller, D. (1987) Appropriating the State on the Council Estate, in Man (NS) 23, 353-372 Oliver, P. (2000) Ethics and Vernacular Architecture, in Fox, W. (ed.) (2000) Ethics and the Built Environment, Routledge, London. Pallasmaa (1996) The Eyes of the Skin, Academy Editions

Public Relations on Campus :: essays research papers

Public Relations on Campus   Ã‚  Ã‚  Ã‚  Ã‚  There are many problems on campus that could use public relation strategies. One that most comes to mind is the local business participation in campus activities. There are many local businesses that show support in Middle Tennessee State University at their bars or clubs, but they cannot be found at an on-campus event. It is like they use MTSU to improve their business and their name, but they cannot repay the favor. But to their surprise, they could use sponsoring campus activities as an excellent source of advertising.   Ã‚  Ã‚  Ã‚  Ã‚  The public relation strategy that they could use is coordinating special events. By being partial sponsors to these campus events, they could get their name out to numerous college students. In my opinion, this would probably be the best source of advertising for local bars or clubs welcoming college students. Sponsoring special events could increase the business in local companies while meeting the PRSA ethics code. RATV April 1, 2002 The Experience of M*A*S*H   Ã‚  Ã‚  Ã‚  Ã‚  For my interview, I chose to question my father. He said that through all the mediums of media, he could best relate to and remember the 1970’s hit series, M*A*S*H. He told me how it first started as a book by Dr. Richard Hornberger and later evolved into a movie and one of the highest rated television shows in history. He said that the show started in 1972 and ended eleven years later in 1983. Over its eleven year run, the show consisted of 256 episodes and countless awards. My father said that this show was very easy to relate to in that time and fit for anyone to watch. Through raw comedy, compassion, and drama, M*A*S*H became a household name and an addiction for many television enthusiasts like my father.   Ã‚  Ã‚  Ã‚  Ã‚  The comedy of M*A*S*H is what mostly attracted my father to the television every week. He said that the cast was irreplaceable and could never be duplicated.