Conclusions And Future Scope Engineering Essay

Conclusions And Future Scope Engineering Essay In the integrated circuit industry, the ceaseless effort to decrease critical transistor dimensions in each new technology guarantees that the prominence of electrostatic discharge will continue to grow. Devising ways to protect electronic devices against ESD is just as important as determining how to process and manufacture them because a product with susceptibility to damage will not be accepted. As a result of increasing susceptibility of devices to ESD because of miniaturization, the problem of ESD is now being dealt by most IC manufacturers and electronic system designers at several levels, from designing on-chip protection circuits to off chip protection design for systems. Once an IC is packaged and shipped to a customer, however, the in-built, on-chip protection circuit is the only means of defense against ESD damage. At the system level, the on-chip protection may not be sufficient to handle the system level ESD exposure. So off-chip or on-board protection devices are necess ary to protect the system from real world ESD. While circuit designers have successfully created robust ESD protection for past technologies, a lack of understanding of effects of ESD on various devices, circuits and systems; the mechanisms underlying ESD damage makes the susceptibility of electronic components to ESD still a hot topic of research. Mathematical analysis and estimation to calculate the induced transient voltages in shielded and unshielded cables is presented. This enables us to find the induced voltage and its rise time appearing at the terminals of the electrical equipment which are connected to such cables. This enables the designers to design protection circuits at the front-end of the equipment. The effect of ESD on logic gates, analog circuits, digital circuits, microcontrollers and complex electronics are presented. This chapter presents the contributions of this thesis toward implementing a methodology of characterization of the effects of indirect and direct ESD on various electronic components. Also the implementation of the board design and protection circuits on a custom designed microcontroller board based on an understanding of the ESD failure mechanisms of various devices and circuits is presented. This chapter covers the future scope on the research work carried out on ESD. The following results and conclusions have been arrived upon. 8.1 Overall Conclusions Mathematical equations have been developed and are implemented in MATLAB by which the coupled and induced voltages in unshielded and shielded cables can be calculated. The values of the induced voltages obtained agree with the published results by different authors. For contact discharge ESD, higher induced voltages are observed upto 10 MHz for CSD, upto 2.5 MHz for air discharge and in the 20 to 100 MHz range for all the three terminations resistive, RC shunt and CMOS device. The induced voltages are higher in the case of contact discharge compared to air discharge or CSD. The induced voltage in an unshielded cable increases with the decrease in the rise time and distance, and increase in the peak amplitude and the damping factor for the CSD current model. The peak value of the induced voltage due to IEC contact discharge ESD at 8 kV for resistive termination is 625V and 7.8 mV for RC shunt termination. The peak value of the induced voltage due to IEC air discharge ESD at 16 kV is 6.25 V and 3.25 mV for RC shunt termination. The peak value of the induced voltage at the input of a CMOS device is 14 V for contact discharge and 0.6 V for air discharge. It can be inferred that RC shunt terminations are preferred compared to the resistive or CMOS device termination as the induced voltages are in mV range. In case of shielded cable, a generic program in Visual C++ to compute the induced voltages for varying parameters of the current waveform, length, height of the cable and angle of incidence has been implemented. This can also be used to calculate induced voltages for different cable configurations. Using MATLAB, the data imported from Visual C++ is used to calculate induced voltages. The equations developed give the voltages induced whose values are in close agreement with those published by other authors. The induced voltages are investigated for braided and unbraided shielded cables. The induced voltage and current in the center conductor is larger for a braided cable compared to a non-braided cable. This analysis estimates the transient voltages appearing at the input of the system connected to the shielded cable. This estimate can be used to develop appropriate mitigation techniques to protect the sensitive system that is connected to the shielded cable. It has been calculated by simulation that in shielded cables, the voltages induced due to radiated ESD is negligible thereby reinforcing the theory that shielded cables can protect equipment from high frequency radiated fields due to ESD. The effect of variation of the parameters such the cable length, height of the cable above the ground plane and the angle of incidence of the ESD pulse has been discussed. The peak amplitude of the cable sheath current decreases correspondingly with decrease in the length of the cable. This change in the occurrence of the peak is due to smaller value of inductance in case of shorter cables as compared to long cables. The peak amplitude of the cable sheath current correspondingly decreases with increase in the height of the cable. The sheath current decreases with the increase in angle of incidence, as the induced current is function of cos  Ã‚ ±i. The induced voltage in turn depends upon sheath current and surface transfer impedance of the cable. The induced voltages for a shielded cable of length 1m, height 0.1m and angle of incidence 30o are 1.4-10-8V for braided and 6.6-10-16V for non braided cable as presented in Table 3.3. Mathematical analysis is used to model the response of Very High Frequency amplifier to ESD generated radiated EM fields. Using MATLAB the effect of the radiated fields on the induced voltages in a VHF amplifier for various distances from the ESD source is calculated. It is observed that a greater part of the energy due to ESD simulation currents has frequency components in the range of 200 to 400 MHz extending to the VHF and UHF bands. So the VHF amplifier is susceptible to ESD events in this frequency range. If the distance between the ESD generator and the pickup antenna is decreased, the peak magnitude of the voltage coupled to the amplifier input terminals increases. The amplitude of the fields at antenna terminals, open circuit voltage at antenna input terminals, voltage at the input and output of the amplifier decreases sharply with increase in distance from ESD source. It has been observed that the induced voltages at the amplifier input terminals can be as high as 7.446 V with a rise time of approximately 1 ns for a distance of 0.5 m between the ESD generator and the pickup antenna as given in Table 4.1. This can cause malfunction of the electronic circuitry inside the amplifier. The spice circuit modeling with transient analysis concurs with the experimental results for air discharge on analog circuits. The zero crossing detector built with an opamp is more susceptible to ESD when compared to the RC phase shift oscillator built with discrete components. It is experimentally verified and the modeling also revealed that the oscillator circuit using discrete components took some time to come back to its initial working condition after the ESD discharge due to the slow discharge of the charges accumulated. In the indirect discharge it is seen that the ESD effect depends on both distance and discharge voltage. Higher discharge voltage and shorter distances produce larger transients and distortions in analog circuits. Direct air discharge of 15kV at the ZCD input damaged the opamp but the oscillator recovered after 750 µs. Direct air discharge of 15kV at oscillator output affects the output of oscillator for 1.4ms. The ZCD output remains high till the sine wave output of oscillator circuit recovers. The spice modeling also give the same results for discharge at oscillator output. In the radiative coupling the transient appearing on the ZCD output could be due to differential mode and the common mode could not be investigated. In the direct air discharge conducted at the input point of the ZCD circuit, there could be two types of coupling the direct capacitor coupling to circuit and near field coupling for the common mode. In this case also the common mode was not investigated, so the transients shown are only differential mode. In the direct air discharge at oscillator output, the differential mode and common mode transients were seen. But the voltage probes and current probes of high voltage and low rise time of 1ns range with an accuracy of less than 5% were not available. Hence the initial rise time and the maximum amplitude of the transient could not be measured experimentally with good accuracy. The digital switching circuit without decoupling capacitors at Vcc malfunctioned when an ESD event occurred at a distance of 35 cm from the circuit. The transient affected only the data stream and the circuit stopped functioning. Post discharge analysis revealed that Binary counter IC SN74LS393N had failed functionally (all output pins were malfunctioning). The importance of adding decoupling capacitors to the supply point of each of the ICs is verified. Experiments carried out to study the response of data to ESD in a digital switching circuit with decoupling capacitors at Vcc reveal that the effect of ESD on the data and clock depends on the position of trigger and also the plane of coupling. During discharge onto the horizontal coupling plane (HCP), the instance of occurrence of the discharge (when Data and Clock are High or Low) played an important role on the effect of ESD on the output data stream. When both data and clock are High, increase in data amplitude or data inversion occurs and also there is increase in the amplitude of clock. The distance at which the pulse is discharged onto the HCP reflects on the amplitude of the transient. During discharge onto the vertical coupling plane (VCP) there is a loss of data and transient with more than 50V peak amplitude is introduced. The discharge to VCP affected the digital data more than the discharge to HCP. Experiments are also carried out by varying the values of decoupling capacitors in the digital switching circuit and it is observed that smaller the value of decoupling capacitor, the more susceptible the circuit becomes to ESD. The decoupling capacitor with higher value of capacitance (0.47 µF) offered better immunity to ESD in our digital circuit because of its ability to pass only lower frequencies thereby rejecting the high frequency ESD transients. Experimental investigations of the TTL and CMOS logic gates reveal that CMOS devices are more susceptible to ESD than TTL devices due to the presence of a dielectric media in CMOS devices which can easily breakdown at high voltages. The output of CMOS logic gates deteriorated after ESD stress and did not recover after reset. It is verified experimentally that the susceptibility of a circuit to ESD in the mixed mode circuit can be greatly reduced by properly grounding it. In the mixed mode circuit used, the data is affected more by transients of various voltages based on the discharge voltage given when the analog and digital grounds are common. This reiterates the fact, when the analog and digital grounds are common the high frequency return paths from the digital ground (astable multivibrator circuit using 555 Timer) reach the analog ground (inverting amplifier using opamp) and affect the output. In the mixed mode circuit used when the analog and digital grounds are separated there are no transients due to ESD in the analog output. Hence separate analog and digital grounds are recommended. Direct air discharge of 12 kV twice on the GPIO pin of the custom designed 8 bit microcontroller diagnostic circuit resulted in the impedance of the board becoming very low implying there is a dead short between the VDD and the VSS rails of the microcontroller. The microcontroller shut itself down by enabling the thermal shutdown feature. The failure of all the three designed diagnostic tests involving digital ports, UART and PWM channels are observed. It is observed that the failure in the 8-bit microcontroller is through the Vcc and Ground pins when the ESD event was closer to these pins. This may be because of the capacitor across Vcc and Ground discharging into these pins due to the ESD event. For the ESD event at other pins, mostly malfunction was observed. The MSP430 launchPad with 16 bit microcontroller is quite immune to ESD owing to its inbuilt design and ESD considerations. This is confirmed experimentally by performing indirect and direct ESD tests at specified standard voltages. However direct contact discharge of 8kV given to the Tx-Rx pins of the jumper array resulted in the damage of the communication port of the 16 bit microcontroller MSP 430G2231 IC. The microcontroller MSP 430G2231 is found to be not communicating with the software and the program is not executable. The communication port (Rx-Tx pins) needs protection in the form of TVS diodes. The 8 bit microcontroller system configured to do a diagnostic check of its functioning during an ESD event had no extra on-board protection devices other than the on- chip protection. The 8 bit microcontroller did not withstand the IEC recommended up to 15kV air discharge perhaps because it was designed on a two layer PCB board. The MSP 430 launch pad with the 16 bit microcontroller on a four layer PCB was designed keeping in mind the ESD considerations. The 16 bit microcontroller also did not withstand the IEC recommended upto 8kV contact discharge at the communication port perhaps because of lack of extra protection. Continuous discharges on 8 bit microcontroller led to its thermal shutdown. But the continuous discharges on the 16 bit and 32 bit did not result in thermal shutdown perhaps because it was designed on four layer boards. All the observations from the previous tests and conclusions are put to use in the custom designed four layer board with 32 bit microcontroller interfaced with various components like the UART, audio interface, USB, LCD display and key matrix. All the standard design rules for PCB design are followed in the custom designed microcontroller test boards one populated with components having in-built on-chip protection and another board with extra off-chip on-board protection devices. In the custom designed 32 bit microcontroller system on four layer board it is observed that the placement of components on the board and board design played an important role in the systems sturdiness to ESD. The adherence to standard design rules such as split ground and power planes; proper component placement to minimize loop area; power supply decoupling using ferrite beads and decoupling capacitors; placement of connectors, user interfaces and output devices at the edges of the board; separating analog and digital sections has made the microcontroller boards quite rigid against ESD. Also the on-board protection devices at strategic locations such as the input/output, data and power points, communication port and at the input points of the interfaces in the custom designed 32 bit microcontroller system plays a vital role in the robustness of the system. The adherence to standard design rules has made the microcontroller board with components having in-built on-chip protection also quite rigid against ESD. The board with on-chip protection is affected by ESD with problems like malfunction or reset on power on with a damaged LCD interface module. The other board has extra on-board protection devices like ferrite bead used to isolate the noisy digital section from the analog section, decoupling capacitors for power supply decoupling, schottky diode used for ESD protection of USB and TVS diodes used at input points of microcontroller, LCD display, audio amplifier, UART and USB. The board with extra on-board protection devices has only temporary resets and is hardly affected by ESD, and the interface modules are also functioning normally. So experimentally it has been concluded that with adherence to board design and just in-built, on-chip protection the damages are mitigated but malfunctions occur which only recover on hard reset on pow er ON whereas with extra on-board protection devices included, the damages are completely eliminated, malfunctions are reduced and only temporary reset occurs. It can be concluded that not only standard board design rules need to be implemented it is also necessary to provide on-board protection against ESD by choosing appropriate protection devices and placing them at appropriate and strategic locations like the input pins and supply pins of the device. Experiments of direct air discharge are conducted on the insulators in FPGA/CPLD kit like seven segment LED display, LCD and FRC, and contact discharge conducted on the metal points like the switches, pins and the mounting screws. An air discharge of 8 kV on Liquid Crystal Display distorts the data but resets with power ON and an air discharge of 15kV damages the data on the LCD which cannot be restored on reset. An air discharge of 2kV and 4kV had no effect whereas an air discharge of 8 kV and 15 kV distorted the output on seven segment LED display but the display reset to normal with power ON. A contact discharge of 2 kV and 4kV on the HEX keys feeding the data to seven segment display had no effect but a contact discharge of 8 kV shorted the keys which in turn displayed wrong display data. All these devices had only on-chip protection by the manufacturer and these devices needed off-chip, on-board protection devices to make them less susceptible to ESD. Huge transients are observed when air discharge is carried out on the FRC cables connected to the DAC module. When a contact discharge of 2 kV is given on the input pin 187 of the mother baseboard the DAC output voltage reduces. FPGA 3s50 IC is affected during this contact discharge on the input pin. The DAC ICs are affected during the ESD discharge one due to direct ESD effects and the other due to indirect ESD effects. CPLD 9572 IC is also affected by ESD. Because of the ESD discharge in the surrounding and on the input pin of the FPGA/CPLD kit, the ceramic capacitor in the SMPS power supply connected to the kit has shorted and found to be damaged. This is an after-effect observed after the ESD test. The damaged capacitor has been instrumental in contributing to the damage of the FPGA and CPLD ICs. Decapping of the FPGA and CPLD ICs confirmed the failure of these ICs due to ESD. The input/output pin bond pad and the metatop layer of FPGA 3s50 IC is damaged and there is dielectric breakdown observed in CPLD 9572 IC which makes these devices highly susceptible to ESD. Future Scope Much effort has been put into characterizing the effect and impact of ESD on individual ICs, on different designed circuits and few systems such as FPGA/CPLD kit, microcontroller units with various interfaces. However, less time has been spent in modeling all of these circuits/systems and to observe their behavior towards ESD using simulation tools. An effort in mathematical modeling and simulation has however been done with susceptibility of electronic system and cables due to radiated ESD fields. Also circuit modeling has been done for the analog circuits. The experimental based conducted susceptibility tests on various electronic components have resulted in some new results. Some of these results have reiterated some of the known facts and some results have given rise to new thoughts in implementing ESD protected circuit/system. ESD threat level variation to electronic components depends on the discharge voltage of ESD source, discharge point, structure and design of the component. ESD threat to components mounted in systems may significantly vary from the threat to unmounted, individual components. New models need to be designed to predict the condition while the device is working in the system and using the computer simulations it is necessary to predict the ESD voltage, power and energy threats to system-mounted component. This is one area where the experimental results can be compared with the simulated results and the source of the threat, the point of discharge and its impact on the system can be confirmed. Also new protection schemes can be adapted to make the system less susceptible to ESD. Another area of interest where ESD tests can be conducted is in the area of high speed radio frequency (RF) circuits and systems. As the demand for wireless (RF) and high-speed mixed-signal systems continues to increase rapidly, providing sufficient ESD protection for these systems poses a major design and reliability challenge. This is due to the fact that in applying ESD protection to these systems, the protection system must be transparent the protection circuit must not affect the signal under normal operating conditions. A poorly designed protection system can generate impedance mismatches, causing reflections of signals, corruption of signal integrity, and inefficient power transfer between the signal pin and the core circuit. Broadband RF system protection because of ESD parasitic capacitance poses a greater challenge; alternate protection schemes may be necessary. This necessitates us to first understand effect of ESD on these high speed RF systems. However, there is little published information that provides performance analysis of RF circuits with various ESD protection design options scheme, which is attractive for operations in the multi-GHz regime.

Determination of aspirin and caffeine

Determination of aspirin and caffeine Results: Identify and mark the signals in the spectra and note the chemical shift values of the methyl resonances in aspirin and caffeine and the methylene resonance in s-trioxane. Using above expression, calculate the weight of aspirin and caffeine in one tablet, and the percentage w/w of each component in one analgesic tablet. Whole tablet weighed = 0.501 Half tablet weighed = 0.270 Mass of s-trioxane = 0.05 RMM of aspirin = 180 RMM of caffeine = 194 RMM of s-trioxane = 90 No. of moles of components = component integral/no. of protons giving signal No. of moles of standard standard integral/ no. of protons giving signal To find out the weight and percentage w/w of Aspirin and Caffience following calculations were made: Aspirin: No of moles of components (x) = ? No of moles of standard = mass of s-trioxane / RMM of s-trioxane = 0.05 / 90 = 0.000555 Component integral = 202.72 No of protons giving signal = 3 Standard integral = 200 No of protons giving signal = 6 Putting values in the above eq.1: x / 0.000555 = (202.72/3) / (200/6) x/0.000555 = 67.57 / 33.33 x = 67.57 x 0.000555 / 33.33 x = 0.00113 moles Mass of aspirin = moles x RMM = 0.00113 x 180 = 0.203g = 203mg % w/w of aspirin in the tablet = mass of aspirin / mass of the tablet x 100 = 0.203 / 0.501 x 100 = 40.5% Caffeine: No of moles of components (x) = ? No of moles of standard = mass of s-trioxane / RMM of s-trioxane = 0.05 / 90 = 0.000555 Component integral = 14.0 No of protons giving signal = 3 Standard integral = 200 No of protons giving signal = 6 Putting values in the above eq.1: x / 0.000555 = (14.0/3) / (200/6) x/0.000555 = 4.66 / 33.33 x = 4.66 x 0.000555 / 33.33 x = 0.0000775 moles Mass of caffeine = moles x RMM = 0.000075 x 194 = 0.0145g = 14.5 mg % w/w of aspirin in the tablet = mass of aspirin / mass of the tablet x 100 = 0.0145 / 0.501 x 100 = 2.89% Discussion: Comment on the chemical shift positions of the methyl groups in aspirin and caffeine. Aspirin shows about 6 singlets in the spectrum, all in different environment. It has got one methyl group which gives rise to a singlet at ? 2.3498 as there are no neighbours and the n+1 rule is followed. It has integral of 3 as three protons are giving rise to the chemical shift at ? 2.3498. The four singlets between ? 7.1292 ? 8.1123 correspond to benzene ring protons. In aspirin there is a very broad singlet at ? 11.0082 due to the carbonyl next to hydroxyl proton which shifts it towards the left hand side. Caffeine has got three methyl groups which give rise to three singlets as all the three methyl groups are in different environments to each other. All the three peaks have integral of 3 which arises due to the three protons on each methyl groups. The first singlet at ? 3.4133 is due to the protons (a) next to nitrogen with single bond. The second singlet is seen at ? 3.5910 corresponding to protons(c) next to double bonded carbon and oxygen and the last methyl singlet (b) at ? 4.004 is due to the protons next to two double bonded oxygens attached to two carbons. There is also a singlet seen at ? 7.5172 that arises due to a single proton CH between two nitrogens. Compare your results to the contents claimed by the manufacturer and discuss any differences observed. How does this method compare with determinations by UV absorbance and HPLC. What are the NMR methods limitations? UV techniques are simple and rapid. It can be used for the quantitative determination of highly conjugated compounds and metal ions. Metal ions can be coloured and determined by UV. HPLC is a separation techniques used for compounds on basis of their rate of elution and can separate complex mixtures. HPLC analysis is very quick with high resolution. The stationary column can be used repeatedly for number of times. In HPLC analysis, automated instrumentation and quantitation can be used. It also has low sensitivity and accuracy. NMR is an expensive technique. Compared to UV and HPLC the instrumentation is more costly. The sample to be analyzed has to be free of any contaminants. It takes longer time as compared to the other techniques mentioned. In NMR the chemical shift corresponds to the structure of the molecule being analysed so for compounds with similar structures it is difficult to separate the signals. Also it is an insensitive technique. References: http://www.pg.gda.pl/chem/CEEAM/Dokumenty/Warsztaty/Levsen.pdf http://wiki.answers.com/Q/Advantages_and_disadvantages_of_HPLC http://www.answers.com/topic/hplc-high-performance-liquid-chromatography http://www-unix.oit.umass.edu/~mcclemen/581Proteins.html http://wapedia.mobi/en/Ultraviolet-visible_spectroscopy http://books.google.co.uk/books?id=Dvoeg3erhRECpg=PA297lpg=PA297dq=limitations+of+nmr+spectroscopysource=blots=ea8zhh6QdCsig=v3mtaKE11Git3TMIX06mK3KD3yIhl=enei=BStBS5abEJj20wTkg6mSBQsa=Xoi=book_resultct=resultresnum=6ved=0CBoQ6AEwBTgK#v=onepageq=limitations%20of%20nmr%20spectroscopyf=false

The Lovable Mrs. Bennet of Pride and Prejudice Essay -- Pride and Preju

The Lovable Mrs. Bennet of Pride and Prejudice      Ã‚  Ã‚   The general impression of Austen's novels, which critic D. W. Harding says relieved him of any desire to read them, is that they offer readers a humorous refuge from an uncertain world.   In his article "'Regulated Hatred': An Aspect in the Work of Jane Austen," Harding claims that this impression is misleading and that Jane Austen is actually very critical of her society, covertly expressing downright hatred for certain members of it by means of caricature.   Mrs. Bennet, from Austen's Pride and Prejudice, is one of these "comic monster[s]".   Harding claims that in order to view Mrs. Bennet as anything other than utterly detested by Austen one must ignore this Austen's summary of her at the end of Chapter One: "She was a woman of mean understanding, little information, and an uncertain temper."1   Actually, Austen's Mrs. Bennet is much more complex than Harding acknowledges.   Austen's initial summary notwithstanding, Pride and Prejudice even loo ks at Mrs. Bennet forgivingly.   Her behavior is often provoked by her environment: both her society and her family.   Because she helps, or tries to help, her family, Mrs. Bennet's ludicrous actions can even be seen as lovable.        Ã‚  Ã‚  Ã‚  Ã‚   Mrs. Bennet's society and family condemn her to a series of conventional roles.   Mrs. Bennet snags a husband by playing the role of the good-humored, pretty young woman.   Mr. Bennet also believes that good looks will make a good wife, and he marries her.   However, once she and Mr. Bennet take off their courting masks and Mr. Bennet discovers her "weak understanding and illiberal mind, [which] had very early in their marriage put an end to all real affection for her" (155),... ...Mrs. Bennet in a critical and funny, but understanding way, Austen becomes the satirist that Harding claims she is not.   As a satirist, Austen helps us to deal with the Mrs. Bennets in our world.   While exposing their weaknesses, we can forgive them and even try to help them.   We can also, by understanding how a Mrs. Bennet comes to act like Mrs. Bennet, keep our sisters and ourselves from becoming like her.                   Notes    1. D. W. Harding, "'Regulating Hatred': An Aspect in the Work of Jane Austen," in Jane Austen, Pride and Prejudice, ed. Donald Gray (New York and London: Norton, 2001), 297-298.    2. All references to Jane Austen's Pride and Prejudice are from the Norton Critical 3rd edition, ed. Donald Gray (New York and London: Norton, 2001).    3. Harding, 297.    4. Harding, 297.      

Venice :: essays research papers

What is the federal government's single greatest responsibility to the public? In my opinion the federal government has many responsibilities to the public, but most importantly is its pledge of protection to the public. When I say protection, I mean not only from military attacks from other countries, but by supplying funds for all the needs of the citizens. As the population in the U.S. increases and federal funds decrease, the government tends to forget all of the little people who elected the politicians into office. The people to whom I am referring are the farmers and small business owners, who rely on the government's support to protect their investments. As shipping and international money-exchange has become easier and faster, the ability for small business owners or farmers to sell their goods have conversely become harder. I believe that it is the gocernment's responsibility to ensure that these people do not struggle to earn a living. Bills such as trade restrictions, etc are created so these people can earn a living. Another type of protection that the government must provide abundantly is aid to the smaller governments, such as state or city offices. I feel that this is most important in crime-ridden, overpopulated cities, such as New York or Los Angeles. These are the great tourist attractions in America, but they don't receive the recognition that they deserve from the government. Without government funds, these cities don't have enough money for upkeeping and allow their images to become tarnished. This will cause a domino effect because less tourists will want to visit America. Less tourism means that these cities have less revenues and less importance to the government. Less importance means that they will receive even less aid. Such an effect will ruin any bright spots which still are in the U.

julius caesar - flattery :: essays research papers

In William Shakespeare's tragic play Julius Caesar, an under appreciated factor of flattery and persuasion plays an important role in the choices of the leaders. Cassius uses flattery with Brutus. Decius uses flattery with Caesar, and Antony uses flattery with Brutus. Cassius persuades and flatters Brutus. Cassius knows that Caesar would do harm to Rome if he became leader. Brutus would be a powerful force in the conspirator's movement to kill Caesar before Caesar becomes king and destroys Rome. Cassius really needs Brutus on his side, so in order to persuade Brutus, he uses lots of flattery. Whenever Cassius talks to Brutus he throws in "good Brutus", "gentle Brutus" or "dear Brutus" to make Brutus feel comfortable and confident. He also uses overlooked flattery when speaking to Brutus. Cassius realizes all his sweet talk has done well when he responds to Brutus with "I am glad/That my weak words have struck but thus much show of fire from Brutus" (I, ii, 8). By this, he means that his words have lit a flame, or triggered a though in "the great" Brutus's head. Decius uses flattery and persuasion when speaking to Brutus. Decius is an active member of the Conspirators so he is very motivated into getting Caesar to go to the Senate House. The first thing that Decius says when he walks into Caesar's house is "Caesar, all hail! Good morrow, worthy Caesar" (II, ii, 30). Decius also goes on and calls Caesar "most mighty". Decius is already on Caesar's good side. After catching up on Calpurnia's dream, he uses his quick wit to distort Calpurnia's foreshadowing dream by saying it is "misinterpreted". He explains that the dream "Signifies that from (Caesar) Rome shall suck/Reviving blood, and that great men shall press/for tinctures, stains, relics, and cognizance" (II, ii, 31). Caesar seems to be amazed by this version of the interpretation; in fact, he likes this version a lot better mainly because Decius uses so much flattery. Antony deceives Brutus and the other conspirators with his keen wit and his sweet talk. After a brief minute of expressing sorrow, Antony goes right into saying "Friends am I with you all, and love you all" (III, I, 42). Antony is using flattery in order to get Brutus on his good side so he can speak in the order of Caesar's funeral. Antony asks Brutus if he can, Brutus agrees without hesitation. julius caesar - flattery :: essays research papers In William Shakespeare's tragic play Julius Caesar, an under appreciated factor of flattery and persuasion plays an important role in the choices of the leaders. Cassius uses flattery with Brutus. Decius uses flattery with Caesar, and Antony uses flattery with Brutus. Cassius persuades and flatters Brutus. Cassius knows that Caesar would do harm to Rome if he became leader. Brutus would be a powerful force in the conspirator's movement to kill Caesar before Caesar becomes king and destroys Rome. Cassius really needs Brutus on his side, so in order to persuade Brutus, he uses lots of flattery. Whenever Cassius talks to Brutus he throws in "good Brutus", "gentle Brutus" or "dear Brutus" to make Brutus feel comfortable and confident. He also uses overlooked flattery when speaking to Brutus. Cassius realizes all his sweet talk has done well when he responds to Brutus with "I am glad/That my weak words have struck but thus much show of fire from Brutus" (I, ii, 8). By this, he means that his words have lit a flame, or triggered a though in "the great" Brutus's head. Decius uses flattery and persuasion when speaking to Brutus. Decius is an active member of the Conspirators so he is very motivated into getting Caesar to go to the Senate House. The first thing that Decius says when he walks into Caesar's house is "Caesar, all hail! Good morrow, worthy Caesar" (II, ii, 30). Decius also goes on and calls Caesar "most mighty". Decius is already on Caesar's good side. After catching up on Calpurnia's dream, he uses his quick wit to distort Calpurnia's foreshadowing dream by saying it is "misinterpreted". He explains that the dream "Signifies that from (Caesar) Rome shall suck/Reviving blood, and that great men shall press/for tinctures, stains, relics, and cognizance" (II, ii, 31). Caesar seems to be amazed by this version of the interpretation; in fact, he likes this version a lot better mainly because Decius uses so much flattery. Antony deceives Brutus and the other conspirators with his keen wit and his sweet talk. After a brief minute of expressing sorrow, Antony goes right into saying "Friends am I with you all, and love you all" (III, I, 42). Antony is using flattery in order to get Brutus on his good side so he can speak in the order of Caesar's funeral. Antony asks Brutus if he can, Brutus agrees without hesitation.

Fate vs. Free Will: Oedipus Rex Essay

Oedipus’ ignorance, disrespect, and unending search for the truth ultimately contribute to his free willing destruction of life and the completion of prophecy. Fate is the theory that our lives are â€Å"predetermined† for us, and the concept that states that humans have the choice to choose what decisions they make in life is know as free will. Society tends to generally feel that free will is the presiding element in their lives. It is important to distinguish reality from figment ideas like the belief that your life is â€Å"controlled by fate†; we live in a world where fantasies do not exist and truth surrounds us everyday. Ignoring this makes you ignorant to the truth; blind to reality and open to fanciful theories-fate-that close your existence to the real world. Free will is definitely the controlling factor in uncovering the truth about Oedipus’ prophecy. He governs all the choices and many obstacles he undergoes alone, including: Oedipus fleeing from Corinth, the riddle being solved, the refusal to quit the search for truth and the supposed fated events, like the death of his father, the marriage to his mother, and the encounter with the drunken man. After Tiresias, a man who foreshadows the future, informs Oedipus what lies ahead he flees from Corinth. â€Å"When I heard this, and in the days that followed I would measure from the stars the whereabouts of Corinth-yes, I fled to somewhere where I should not see fulfilled the infamies told in that dreadful oracle† (Sophocles 792-793). If we as humans were told a fate that would ruin our lives, we would all free willingly try to hide from it. It was not fate that led him to flee from Corinth but the human instinct to hide from the truth. Another major event leading to the fulfillment of the prophecy is when Oedipus solves the riddle in Thebes. The Sphinx asks Oedipus, â€Å"What walks on four legs in the morning, two legs at noon, and three legs in the evening? † He solves the riddle answering, â€Å"That man crawls on all fours in infancy, walks upright on two legs in adulthood, and uses a cane as a third leg in old age. † Technically Oedipus does not have to solve the riddle; he can turn around and travel elsewhere, but he willingly solves it. Oedipus refuses to stop looking for the truth that Jocasta and Lauis were Oedipus’ parents when Jocasta, his wife, told him to. â€Å"Stop in the name of god, if you love your own life, call off this search! My suffering is enough. Listen to me† (Sophocles, Line1603-1605). Oedipus replied, â€Å"Listen to you? No more. I must know it all, I must see the truth at last† (Sophocles, Line 1169-1170). It was Oedipus’ freewill to continue the search of truth, despite the upcoming damage that is to come. Oedipus and those around him consider â€Å"fate† the source of Oedipus’ problems. A supposed fated event that occurred is when Oedipus states, â€Å"The driver, the old man himself, tried to push me off the road. In anger I struck the driver as he tried to crowd me off. When the old man saw me coming past the wheels he aimed at my head with a two-pronged goad, and hit me. I paid him back in full, with interest: in no time at all he was hit by the stick I held in my hand and rolled backwards from the center of the wagon. I killed the lot of them† (Sophocles, Lines 810-820) In the prophecy he was â€Å"fated† to kill his father, but clearly it is Oedipus’ decision to defend himself against the man who attacked him; it’s either life or death and death is not an option for him. The next is the marriage to his mother; marriage is the reward for solving the Sphinx’s riddle. Again, Oedipus could have rejected this prize from the town of Thebes but he voluntarily accepts to marry Jocasta. In the story Oedipus comes across a drunken man who accuses him of not having real parents; Oedipus chooses to listen to this man, which supposedly is â€Å"fate†. A drunken man does not always have the credibility of truthfulness so Oedipus did not have to listen to him, but he freely chose to take note of the things he said to him. In the end it was Oedipus’ ignorance, disrespect, and unending search for the truth that ultimately contributes to his free willing destruction and fulfillment of prophecy. He has plenty of opportunities to make better choices but he is â€Å"blind† to those opportunities because of his flaws and stubbornness. Fate separates us from reality and blinds us from the truth. The truth can be a positive aspect in our lives; we learn from mistakes and it is what fuels our growth. We must all learn that we have the choice to control our own being and the decisions in them–humankind must open their eyes and take control.

Business Ethics Essay

1.Introduction Precisely define the concept of â€Å"ethics† is quite difficult. In a general sense ethics – a set of moral principles and values that govern the behavior of a person or group of people and determining the positive and negative assessments of their thoughts and actions. Ethics associated with inner values, and they in its turn are part of the corporate culture and influence on decision making, determine their social validity within the environment. Ethical problem arises when the actions of an individual or organization may harm or conversely benefit others. Since ethics are unwritten rules, the issue of assessing an action often has irreconcilable differences. The so-called ethical dilemma arises in a situation where all the alternative solutions or courses of action because of its potentially negative moral consequences are undesirable, it is difficult to distinguish good from bad, right from wrong. Person who assumes responsibility for the organization of emerging ethical issues, often referred to as an agent of morality. This assignment examines the various approaches to the ethical issues, the study of which allows management to develop criteria for their analysis and solutions. 2.1 The Four approaches to make ethical decision Most ethical dilemmas is a conflict between the whole thing and its parts: the organization and the individual, the community and the organization. For example, should the company be subject to mandatory testing of their employees in the use of drugs and alcohol, which can benefit from it, but it restricts the freedom of action of individuals? Is it right to export goods that do not meet national quality standards in other countries with less stringent requirements? Sometimes ethically complex solutions involve a conflict between the two groups. For example, what is more important: the pollution caused by wastewater businesses or jobs that it creates, as the largest employer? Faced with the problems of an ethical choice, managers tend to be based on a normative point of view, that are certain norms and values, in accordance with which decisions are made. In normative ethics identify several approaches to the description of the system of values and hence the adoption of ethically diff icult decisions, which can be used in the practice of management: THE UTILITARIAN APPROACH, THE RIGHTS APPROACH, THE FAIRNESS OR JUSTICE APPROACHES AND THE VIRTUE APPROACH. 2.2 The Utilitarian Approach Basic principles developed in the XIX century by philosophers Jeremy Bentham and John Stuart Mill’s utilitarian approach states that appropriate behavior morality brings the greatest benefit to the greatest number of people. An individual decision-maker should review the impact of each option on all of its stakeholders, and to lay the one that brings satisfaction to the greatest number of people. In essence, it is about finding the best solution. As the complete calculations can be quite complex, allowed simplified conditions. For example, the calculation of costs and benefits in monetary terms can be used a simple economic criterion. In addition, while deciding rightly consider the situation only directly affected their sides. Utilitarian ethics justifies the introduction of a ban on the use of alcohol and smoking in the workplace, and in some cases at the end of work, as this behavior has a negative impact on the collective organization. Similarly, many companies monitor Internet use explains the need to maintain a healthy and productive environment. If employees are browsing pornographic websites, participate in racist forums or whole day browse on the virtual shopping, eventually suffers organization. Anyone who uses a utilitarian approach, assessing the impact of specific actions on the people who are directly involved in this process, while trying to produce the greatest good for the greatest number of people. Utilitarian approach focuses on the actions themselves, not the motives behind these actions. Potentially positive results of actions are weighed against the potential negative results. If the former outweigh the latter, manager, guided by a utilitarian approach is likely to begin to consider the action. The fact that some people, these actions could adversely affect recognized the inevitable and acceptable. 2.3 The Virtue Approach The virtue approach assumes that the moral and human actions are acceptable that benefits in the long term. The main driving force is self-control, and all the external forces that limit it should be stopped. Each person chooses for himself the most profitable in the long-term solution, based on which it judges the quality of their actions. One of the features of this approach is that it allows of the individual, aimed at the acquisition of personal short-term gain, in general, do not meet social norms. Precisely because individualism can be easily interpreted as a desire for purely personal purposes, it is not very popular in today’s highly organized communities focused on group goals. The approach most closely approximates to the area of free choice. 2.4 The Rights Approach The rights approach holds that man was originally endowed with fundamental rights and liberties, which cannot be violated or limited by decisions of other people. This means that the ethically correct to the solution that best respects the rights of those affected. It is assumed that the ethically correct decision should not violate these fundamental rights. Thus, the decision to listen to conversations of employees violates their right to privacy. Sexual harassment is unethical, as contrary to the right to freedom of conscience. The right to free speech justifies the actions of informants reported to management of the organization or the authorities about illegal or inappropriate actions of officers. Those who adhere to the rights approach, assess whether the decisions and actions of the basic civil and group rights and privileges. Some of these rights and privileges are listed in documents such as the Bill of Rights (the first 10 amendments to the Constitution of the United States) and the United Nations Declaration on Human Rights. The rights approach takes into account human rights such as the right to life and personal security, privacy, freedom of conscience, freedom of speech and private property. 2.5 The Fairness or Justice Approaches The conception of justice claims that ethically correct decision should be based on principles of equality, fairness and impartiality. In terms of management, there are three types of justice. Distributive justice requires that the ratio of managers to subordinates based on objective criteria. Thus, if the decision relates to such individuals to each other, it should equally apply to that and the other. Therefore, if a man and a woman do the same work assignment, they get about equal pay. However, if between the employees there are significant differences (for example in terms of skills or responsibilities), the ratio of management to them varies according to the skill level or display a sense of responsibility. But the attitude of the manager to subordinates must be clearly linked to the goals and objectives of organizations, not from other sources. Procedural fairness requires fair administration of subordinates. The rules should be clear, concise, and unbiased constantly enforced. Compensatory justice requires responsible party to compensate the damage caused to people. Moreover, people should not be held responsible for events that are beyond their control. The concept of fairness is closest to the legislation, as it is based on rules and regulations. This theory does not require complex calculations, as in the utilitarian approach, and does not serve its personal interests, which is possible in a virtue approach. It requires managers to determine for itself the characteristics of attributes, according to which evaluate the actions of workers. The conception of justice supports attempt to correct mistakes of the past, as well as fair play within the rules. In accordance with it the basis for a different pay or promotion can act reasons related solely to perform the job tasks. Most of the administration of human resources rules and laws are based on the concept of justice. Manager, who uses the approach of social justice, judges of how its actions fair and impartial in the distribution of awards and values among individuals in groups. These ideas arise from the two principles known as principles of freedom and differences. The principle of freedom holds that man has certain liberties that are compatible with the same freedoms enjoyed by other people. The principle differences argues that if there are doubts about the correctness of a decision, all the social and economic injustice, thus eliminating the need to be able to more fairly distribute goods and services. 3.Conclusion 4.Recommendation Most people, who are in business, hold a utilitarian point of view on the issue of business ethics. Arguing it actions to maximize profits, the CEO can always say that it thus seeks to ensure the maximum benefit for the majority of stakeholders. As a result of extreme volatility environment management personnel must reject this approach. A characteristic feature of utilitarianism is â€Å"impairment† interests of the individual and minority interests of the majority, and new trends in the field of human rights and social justice require that managers need ethical standards based on diametrically opposed principles. This is a complex task of modern management as well as management decisions should be made taking into account criteria such as human rights, social justice and the standards of the local community. This will increase the degree of ambiguity of administrative decisions. As a result, managers are increasingly faced with problems of moral and ethical character. Business ethics Essay The lecture of Father Roa last February 16 is an introduction to Business Ethics subject. The discussion included businessman’s myth about business ethics, the relationship of ethics and business, moral reasoning in business, the theory of profit motive, and business ethics definition. These given me deeper understanding of the subject â€Å"Business Ethics and Social Responsibility†. Some of businessman’s myth about business ethics includes: Ethics is a personal affair and not a public debatable matter; Ethics and business do not mix; This in business is relative; Good business means good ethics; and Business is war. These myths will remain a myth. The relationship of ethics and business which cannot be separated from one another. Ethics is an unwritten law, written in the heart of men. Business is an integral part of the human society with activities must also be examine from the moral perspective. In business, what is legal may not be necessary be moral. Today, the trend is to train managers to maximize profits and to quantify the operation of business. With moral reasoning in business, ethical issues and problems affecting the organization must be solved by the manager. Always judge the action based on an ethical principle. A good moral standard will be necessary have a good for me and for everyone, must be objective and not subjective, and when violated bring about feelings of guilt, share and remorse of conscience. The assumption of profit-motive is that it is an ethical issue in business and operates within the framework of freedom and structure of the business itself. There are two sides of profit-motive, good and bad. The good side is that profit-motive motivates people to do something meaningful, promotes ingenuity and cleverness in running a business, makes people productive and generates potential capital for business. If here is a good side, bad side also exist that includes promoting rivalry among competition, focus on only making money, and promote self interest. There are ethical considerations of profit-motive in business. The earning profit is a good and valid activity in business however, making excessive profit totally wrong. The teachings of the Catholic Church do not totally condemn profit as part of the business activity. In the end, business ethics was defined as study of what is right and wrong human behavior and conduct in business. This is a study of perception of people about morality, moral norms, moral rules and institution in business.