Tuesday, August 6, 2019
Interpersonal, Group and Collective Behavior Dynamics Essay Example for Free
Interpersonal, Group and Collective Behavior Dynamics Essay Enron is a company that is faced with financial instability but continues to run on dubious dealings including misrepresenting their true financial position (Cohan, 2002). This is done to save the public image of the company hence avoiding the risk of losing investors. American International Group (AIG) is also in a serious financial crisis following cases of mismanagement (FRB, 2009). We shall make a comparison of the group dynamics and internal politics within these two companies. The companies exhibited an element of information blockage. This is holding back adverse news from the public until the last possible moment. This is usually a deliberate act with the aim of maintaining a good public image. It is however followed by lawsuits, hate mails or even death threats from unhappy investors. In Enronââ¬â¢s case, the senior executives withheld any information about financial crisis from the public until it collapsed (Cohan, 2002). AIG maintained a ââ¬Ëbusiness as usualââ¬â¢ image in the public despite its liquidity issues (FRB, 2009). Motivation to lie or deliberately concealing the truth in an organization was evident in the two companies. The corporate officers do not disclose the truth especially when this truth may put the company into bankruptcy or cost them their jobs. In the case of Enron the lies were inform of hard data, lying about accounting results and a stream of earnings (Williamson, 1970). Questionable accounting practices were meant to hide huge losses that the company suffered. AIG had its share of deliberate lies when it valued its A-A and sub prime property at 1. 7; twice the value used by Lehman. The issue of the boardââ¬â¢s oversight function and the business judgment rule is also fairly evident in the two companies he board of directors act as if they are entitled to rely on the honesty and integrity of their subordinates until something wrong happens (Crag Rebecca, 1996) . The directors of Enron were totally unaware of the severity of the companyââ¬â¢s financial crisis until its collapse. A directors were too ignorant of the liquidity problem to the extend of planning for a lavish retreat for themselves. The subordinate managers have persuasive interest in concealing the bad news. This is meant to avoid or delay personal embarrassment and other associated risks such as the likelihood of a price drop in its shares. In Enron, individual executives who decided to hide the dubious partnership feared erosion of status (Cohan, 2002). They felt that they needed to protect both their self and external image. The same case was evident in AIG, where the subordinate managers saw the need for over costing their assets to redeem their image. Overconfidence and optimism is displayed in the two companies by the senior executives especially in press releases. Overconfidence creates a strong image for any company in the eyes of the public. Executives who are overconfident and optimistic are considered to be successful managers. This is because they are able to persuade and influence people even in the face of a crisis. The executives in Enron and AIG were also in the bid of making a name for themselves. Senior executives assured employees would continuously rise even in the event of financial instability in Enron. The chief executive officer in AIG assured investors that they would still get their bonuses even as the company was being bailed out (FRB, 2009). Corporate ââ¬Ëcultureââ¬â¢ cannot be ruled out in the management of the two companies. This refers to the norms of the company which are well known to the management and the subordinate employees. They supersede other business or ethical laws in case of a conflict. Cynism as a corporate culture fosters the breaking of rules as a means to succeed. Ethical rules are under enforced with the focus being to maximize profits. The Enron and AIG were caught up in this culture when they faced a financial crisis. They misrepresented their debts and assets respectively in the companyââ¬â¢s sheet so as to reflect high profits and attract investors (Cohan, 2002). All this is done in total disregard for accounting ethics. Myopic information within the organization is also prevalent in the two companies. This might be due to our limited cognitive capabilities but more so because the executives are too busy to deal with abundant data. They prefer sifting this data and extracting only what is relevant. They may also be lacking the skill to analyze and understand the data as was the case of Enronââ¬â¢s former chairman Mr. Kenneth Lay. The directors in AIG and Enron, focused on information that confirmed their prior attitudes of leading institutions in the market. They disregarded any disconfirming information of possible collapse or liquidity issues. This is normally referred to as cognitive dissonance. It is usually difficult to change these beliefs as one is seen as a threat to the companyââ¬â¢s status quo. Ms. Watkins, an employee in Enron became such a threat by warning a senior manager of a possible collapse (Cohan, 2002). A chief executive officerââ¬â¢s proposal in AIG was ignored on the same basis (FRB, 2009). Intimidation of subordinate employees by the senior employees is prevalent in Enron but not in AIG. In Enron, investigations against Mr. Andrew a former chief financial officer and other senior officers who were involved in fraud cases did not happen since no one was confident enough to confront them (Cohan, 2002). In AIG the accounting scandal is thoroughly investigated and no one is spared including a former chairman of the board. REFERENCES: Federal Reserve Bank. (2009). History and development of AIG. Retrieved May 26,2009, from http://www. federalbank. orf/history/development. pdf Herbert, A. S. (1955). A behavioral model of rational choice. John, A. C. (2002). â⬠I didnââ¬â¢t knowâ⬠and ââ¬Å"I was only doing my jobâ⬠. Has corporate governance careened out of control? A case study of Enronââ¬â¢s information myopia. Journal of Business Ethics, 40 (3),275-299. Paul Z. Janet A. (1997). The social influence of confidence in group decision making.
Monday, August 5, 2019
Microwave Motion Detector
Microwave Motion Detector CHAPTER NO: 1 MICROWAVE MOTION DETECTOR (MMD) 1.1 INTRODUCTION: ââ¬Å"The Microwave Motion Detector (MMD) is a true microwave Doppler transmitter and receiver, solves difficult detection problems easily with the microwave motion detector, senses any moving body be it a person, animal, car, bicycle or extra-terrestrial.â⬠1.2 WHY MICROWAVE MOTION DETECTOR: Understanding basic home security best practices could mean the difference between keeping your home safe and becoming the victim of a break-in. Start protecting your home better by exploring our Home Security Basics section which provides a good foundation of knowledge on everything from security cameras to outdoor lighting options that help prevent break-ins before they happen. I the light of above detail we have a requirement of autonomous microwave motion detector to prevent our assets from terrorism and any other type damage or robbery. 1.3 PROJECT GOAL: The major goal of this project is to design an autonomous Motion Detection setup, that will be able to sense the motion of any moving object (person, car bicycle or extra-terrestrial) in the designated area or designated range. In our project we have used different type of small size electronics (Diodes, Transistors, FETs, Resistor, Capacitors and Operational Amplifiers) to complete the setup and to make a smart and precise design of MMD. 1.4 PRINCIPLE OF MICROWAVE MOTION DETECTOR: The system emits microwave energy that completely fills its area of detection, much like ultrasonic sensors. A Gunn diode emits energy in the x-range, similar in effect to Doppler frequency shifts. Any disturbance caused by movement within the field of detection may activate the alarm system/Buzzer. Despite fears held by many, these sensors do not adversely affect humans and pacemakers. 1.5 SPECIFICTION: ÃË True microwave Doppler shift operation ÃË Unaffected by heat, light, sound, humidity or temperature ÃË A real microwave transmitter/receiver runs at 1 GHz ÃË Runs on 9 to 15 volts DC ideal for car burglar alarms 1.6 REQUIREMENTS: ÃË DC Voltage, (+9V to +15V). ÃË Oscilloscope DC 2 to 200MHz to monitor the transmitted signal of oscillator and observe waveform of different stages of Microwave Motion Detector. ÃË BNC plug to BNC plug cable 75 Ohms, 1 Meter 1.7 APPLICATIONS OF MMD: The chief applications for MMD have been given bellow. ÃË Detection of unauthorized entry in our home, Offices and other restricted buildings. ÃË Detection of moving object which triggers a Camera to record subsequent events or to operate a Buzzer/Alarm, LED, Laser Diode etc. ÃË This relatively inexpensive and the MMD can easily be used in a variety of science projects, robots and other useful devices. 1.8 BREIF HISTORY OF MOTION DETECTION: Motion can be detected by measuring change in speed or vector of an objector objects in field of view. This can be achieved either by mechanical devices that physically, interact with the field or by electronic devices that quantify and measures changes in the given environment. 1.9 PREVIOUS METHODS OF MOTION DETECTION: Different methods of motion detection were used in past. These are given bellow. Some methods have been obsolete. Some methods are still in used. 1.9.1 MECHANICAL DEVICES: A tripwire is a simple form of motion detector. When an object steps into the tripwire s sensory field (i.e, trips the wire), then a simple sound device might alert to the user. 1.9.2 ELECTRONIC DEVICES: The principal methods by which motion can be electronically identified are optical detection an acoustical detection. Infrared light or laser technologies may be used for optical detection. Microwaves are one of the best tools for motion detection. CHAPTER NO: 2 DOPPLER THEORY AND RADIATION PATTERN 2.1 DOPPLER THEORY: The operation of the MMD is based on a physical theory known as the Doppler Effect. In its simplest form the Doppler theory states that as sound, light or even radio waves are reflected back by a moving object, the frequency of these waves will be different from the frequency when the object is stationary. As the object moves away the frequency will decrease and if the object moves toward you, the frequency will increase. This effect is demonstrated very visibly (or should we say audibly) by a train whistle passing you. This change in frequency is due to the waves being either stretched or compressed as they leave the moving object. Compressing the waves closer will have the effect of increasing the perceived frequency while stretching the waves will cause the frequency to appear lower. This is obviously not the place for an in depth discussion of Doppler theory Just be aware that it is the basis for the operation of the MMD. In fact, with an oscilloscope you can actually see this fr equency change at U1 pin 10. Another phenomenon associated with waves is called the Doppler Effect. Imagine standing near a train track, and a train approaches you with its whistle blowing. The pitch of sound waves is associated with the frequency of the wave: the higher the pitch, the higher the frequency. Thus, as the train approaches the frequency of the sound wave you hear is higher, and as it recedes the frequency is lower. This can be pictured by the following diagram. In this : 2.1 the circles represent, as viewed from above, the crests of adjacent waves. Thus, if you are standing to the right, with the wave source moving towards you, more waves reach you per second, which means that the frequency you hear is higher. Conversely, if you stand to the left, with the wave source moving away from you, fewer waves reach you per second and the frequency you hear is lower. 2.2 TYPICAL RADIATION PATTERN. The microwave motion detector circuit radiates the microwave frequency from an omni directional antenna so the radiation pattern for the electromagnetic waves is given as under. 2.3 RADIATION SAFETY Microwave radiation from the module is well below established safety standards for general public environment, like ANSI C95.1-1991 of USA and NRPB-G11 of United Kingdom. 2.4 HANDLING: The module is an electrostatic sensitive device (ESD). Precautions shall be observed for handling and assembly. Use the circuit module in an electromagnetic interference free environment to avoid errors in detection. 2.5 FUNCTIONAL IMPROVEMENT: The module can be improved to calculate the speed of the moving object. This can also be used to find the direction of the moving object; some additional circuitry is required for these functions. CHAPTER NO: 3 HARDWARE DESIGN OF MICROWAVE MOTION DETECTOR In this section it has been tried to cover hardware related topics of MMD. That is given below separately. 3.1 MMD BLOCK DIAGRAM: The block diagram of the MMD has been shown in the following The detail of block diagram has been shown in the following section. 3.2 BLOCK DIAGRAM BRIEF DESCRIPTION: The MMD consists of eight (08) major blocks. ÃË Power supply unit ÃË Oscillator ÃË Transceiver ÃË Mixer ÃË Buffer amplifier ÃË Band pass amplifier ÃË Output Drive Amplifier ÃË Signal indicator/ Interfacing circuitry 3.2.1 Power Supply Unit: This unit provides required supply voltages for several circuit stages. Source required for the operation of this circuit is from +9v to +15v dc. It is responsible of biasing for all stages of the system. We can use dc battery or built in power supply for this system. This property of the system made it portable device for motion detection. 3.2.2 Oscillator: This section of the circuit produces the frequency approximately 1Ghz.Crystal oscillator is used to generate the required frequency. choice of this oscillator is due to its compact size , low cast and availability of the this component in the market. 3.2.3 Transceiver: The microwave RF energy that is developed by the oscillator is radiated in an omni-directional pattern from the antenna. Then the redirected waves are also received by the same antenna. 3.2.4 Mixer: Received frequency is mixed with the transmitted frequency. 3.2.5 Buffer Amplifier: Frequency generated by the mixer is amplified and buffered in this section of the circuit. 3.2.6 Band Pass Amplifier: Frequency filtered by the mixer is amplified and buffered in this section of the circuit. The band of frequencies passed from the stage is between 10Hz to 40Hz. 3.2.7 Output Drive Amplifier: This amplifier drives the output stage. 3.2.8 Signal Indicator/Interfacing circuits: The detected motion is indicated in the form of an LED glow or it can be interfaced with an interfacing signal that could be some alarm system, camera etc. 3.3 MMD CIRCUIT DIAGRAM: The circuit diagram has been generated in Protell / P-CAD. 3.4 PARTS LISTS: 3.4.1 CAPACITORS LIST: S.# DESCRIPTION DESIGNATOR QTY 1 0.01 uF Disk capacitor (marked .01 or 103 or 10nf) C3, C8, C15, C18 04 2 0.1 uF disk capacitor (marked .1 or 104) C11, C12, C20 03 3 2.0 pF. or 2.2 pf. disk capacitor C6, C7 02 4 22 pF. disk capacitor C5 01 5 1.0 uF electrolytic capacitor C16, C17 02 6 10.0 uF electrolytic capacitor C1, C2, C9, C10, C13, C14 06 7 220 uF electrolytic capacitor C4 01 8 1000 uF electrolytic capacitor C19 01 3.4.2 RESISTORS LIST: S.# DESCRIPTION DESIGNATOR QTY 1 220 Ohm (red-red brown) R2 01 2 470 Ohm (yellow-violet-brown) R1, R15 02 3 1K Ohm (brown-black-red) R6, R7, R11, R20 04 4 4.7K Ohm (yellow-violet-red) R12 01 5 10K Ohm (brown-black-orange) R4, R14, R16, R19, R21 05 6 47K Ohm (yellow-violet-orange) R3 01 7 100K Ohm (brown-black-yellow) R5, R17, R18 03 8 470K Ohm (yellow-violet-yellow) R13 01 9 1 Mega Ohm (brown-black-green) R9, R10 02 10 10K potentiometer R8 01 3.4.3 SEMICONDUCTORS LIST: S.# DESCRIPTION DESIGNATOR QTY 1 Diode 1SS99 (clear glass body with black and blue bands) D1 01 2 Diode 1N4148 (glass body with single black band) D2 01 3 LED D3 01 4 2N3904 NPN transistor Q1, Q2 02 5 2SC2498 or 2570 NPN UHF transistor Q3 01 6 BS170 FET transistor Q8 01 7 LM-324 op-amp U1 01 3.4.4 HARDWARE AND MISCELLANEOUS LIST: S.# DESCRIPTION DESIGNATOR QTY 1 MMD Printed Circuit Board 01 2 Connector 6 Pin J-1 01 3 Connector 2 Pin J-2 01 3.5 MMD PARTS LAYOUT COMPOMENT STUFFING GUIDE DIAGRAM: 3.6 CONSTRUCTION OF THE MMD CIRCUIT: The following steps have been taken for the construction of the MMD main circuit in the light of the PCB layout given in the previous : 3.3 1. 2. 3. 3.1 3.2 3.3 3.4 3.5 3.6 3.6.1 Check off each step as understood and completed. Examine the parts layout diagram for parts location on the PC board. In all steps, ââ¬Å"installâ⬠means to carefully insert the part into the correct hole, solder the leads to the PC board and trim away the excess lead wire. 3.6.2 Use good soldering techniques let your soldering iron tip heat each connection wire enough so that the wire itself and PC board circuit trace BOTH become hot enough to melt the applied solder. The solder should flow smoothly around the lead wire and PC board trace. 3.6.3 Orient the circuit board as shown in parts layout diagram. 3.6.4 Install the LED, with the longer lead towards potentiometer R8. Leave the leads about 3/4â⬠long if you are using the MMD case. 3.6.5 Install sensitivity control R8, 10K potentiometer. R8 acts as a ââ¬Å"volumeâ⬠control, adjusting the level of Doppler shift signal being applied to amplifier and switching portions of the MMD. 3.6.6 Install J1, 6 pin connector. 3.6.7 Install C1, 10uF electrolytic capacitor. Electrolytic capacitors are polarized and must be installed correctly. Usually PC layouts will show where the + lead should go while the capacitor itself will usually indicate the lead. In any case, be sure you observe correct polarity. 3.6.8 Install Q2, 2N3904. Orient the flat side of the transistors as shown on parts layout diagram. Q2 has an interesting function, being connected as a zener diode! The reversed biased base-emitter junction on a silicon transistor behaves as a low power zener diode with a breakdown voltage in the 6 to 8 volt range. 3.6.9 Install Q1, 2N3904 Orient the flat side as shown. Q1 acts as a power supply filter and regulator for the op-amp IC chip, U1. 3.6.10 Install R1, 470 Ohm (yellow-violet-brown). 3.6.11 Install Q8, BS170 and orient the flat side as shown.Q8 is a power transistor. 3.6.12 MOSFET that controls the external load you connect to your MD3. 3.6.13 MOSFET is used since, as the load is turned on and off, a regular bipolar transistor will cause the MD3 to ââ¬Å"seeâ⬠itself. This is due to the diode switching action in a bipolar transistors base-emitter junction. 10. Install C20, .1uF capacitor (marked .1 or 104). 2.3 Power supply (General Purpose) Circuit Operation. In the above : 3.4 a preview of the main PCB have been shown. In this preview the portable battery has also been shown. 3.7 POWER SUPPLY CIRCUIT: The supply is provided by using a transformer with output 20v+20V, 2A leading to a distributed power supply circuit (for general purpose supply) that provides outputs +15V,-15v, +12V, +9V connected to 50Hz, 220 VAC supply mains. The power supply circuit consists of bridge rectifier that provides +20v and -20v with 2A ratings. 3.7.1 BLOCK DIAGRAM OF POWER SUPPLY CIRCUIT: The block diagram of the power supply unit has been shown in the following : 3.7.2 SCHEMATIC DIAGRAM OF POWER SUPPLY CIRCUIT: In the following a circuit diagram of general purpose power supply has been shown in the : 3.6. The circuit diagram has been designed in the Protel Software. 3.7.3 POWER SUPPLY ASSEMBLED PCB: The preview of the assembled power supply unit has been shown in the : 3.7. 3.8 ALTERNATE PORTABLE POWER SUPPLY: An alternate supply can be used instead of a self made supply we can use a +9 Volt Battery to power up the circuit. In this circuit battery is used for simplicity. In the remote area or the area where AC power source is not available we are required to used this portable battery for a short period of time because the life of this battery is to short for proper working of MMD for a long period. CHAPTER NO: 4 ASSEMBLY INSTRUCTIONS AND USER MANUAL 4 4.1 ASSEMBLY INSTRUCTIONS FOR THE MMD: After the stuFfing of PCB test the Microwave motion detector PCB on your workbench for the verification of the design and reliability of components used in the stuFfing of PCB. If the testing is assured to be perfect now it is the time to assemble the PCB of microwave motion detector in a casing. There are three parts of the Assembly of the microwave motion detector. ÃË Composites Box ÃË Power Supply PCB ÃË Microwave Motion Detector PCB ÃË Power ON/OFF switch ÃË Motion indicator LED (Green LED) This box is made of fiber (Composites material). 4.2.1 POWER SUPPLY PCB: In the following : 4.2 assembled Power supply unit has been shown. 4.2.2 MOTION DETECTOR PCB: In the following : 4.2 assembled Main MMD PCB has been shown. Assemble the box in the following steps. ÃË Mount the power supply PCB on the bottom of the box ÃË Mount the Microwave Motion Detector PCB in the box ÃË Mount the power switch on the box ÃË Mount the indicator LED on the box at the last. ÃË Final assembly is shown inn the . In the following : 4.3 assembled MMD system has been shown. The MMD has been shown in the working conditions in a room, means it is sensing the movement of a moving body and giving its response of motion sensing by glowing up the LED. 4.3 INSTRUCTION MANUAL: A switch is placed in the path of DC power so that the power can be saved in the time when the device is not in use. Turn off the switch after using the device and turn it on before using this device. The green light will glow automatically for approximately 5 seconds soon after turning on the device. This indication is not for a moving object but this light glows as a function of turning on the device. The Microwave motion detector is operated in the case where a moving object is needed to sense. In our design the circuit antenna is arranged in the position that it can sense a motion within the range of 2 meters approximately. When an object is moved within this range the motion is sensed by the design and a green light blinks on the panel of the box. This is an indication for the moving object. It can sense another motion approximately 10 seconds after the first motion is sensed. For better sensitivity this device may be used in the electromagnetic interference free environment so that the waves cannot interfere in the produced frequency of the device. Also it must be operated in the vibration free environment so that its antenna must be in static condition if it is in the vibration itself it will sense the motion when nothing is in moving condition, it is due the motion of its own antenna that the frequency is transmitted and received itself by the moving antenna and the green li ght on the panel keeps on glowing that is an operator fault and can be rectified by placing the device on a balanced plane surface. A special care for the Microwave Motion detector is that operate the circuit in the box and never use the PCB alone because this PCB needs special care for the electrostatic charge. An external supply port may be given in the box so that a regulated DC power can also be applied externally to the device. For external power be careful about the polarity of the given DC power. CHAPTER NO: 5 OPERATION OF MICROWAVE MOTION DETECTOR 5.1 WORKING PRINCPAL OF MICROWAVE MOVEMENT DETECTOR: Microwave generating and receiving module generates and transmits a microwave signal which is reflected by a moving target and received back by the module. The module comprises a disc-form Shottky diode or Gunn diode acting as both oscillator and mixer and forming part of micro strip circuitry and signal processing circuitry which processes the reflected signal to extract relevant target information. The signal processing circuitry can be physically displaced from the module and connected to it by a coaxial line. By operating the diode in the diplex mode the requisite target information can be provided for with a compact construction. A microwave movement detector comprising a microwave generating and receiving module for use in generating and transmitting a microwave signal to be intercepted and reflected by a moving target and for receiving the reflected microwave signal from said target, wherein the microwave generating and receiving module comprises micro strip circuitry in combination with a diode acting as both an oscillator and a mixer, said detector further comprising modulating means for modulating the generated microwave signal so that quantitive information as to target range, velocity and direction can be obtained, whereby the detector operates in accordance with a diplex configuration, wherein said detector includes a transmitter for transmitting the modulated generated microwave signal, and wherein the modulating means repetitively switches the transmitter of the microwave generating and receiving module between two frequencies to provide a signal having two spectral lines separated by gaps between t he frequencies. This invention relates to a microwave movement detector particularly although not exclusively for use as an intruder alarm. An object of the present invention is to provide a microwave movement detector which is sensitive and reliable in operation yet which can be constructed in a simple and inexpensive manner with a conveniently small and compact format. 5.2 GENERAL STUDY RELATED TO THE MMD: According to one aspect of the invention therefore a microwave movement detector comprises a microwave generating and receiving module for use in generating a transmitted microwave signal to be intercepted by a moving target and for receiving a reflected microwave signal from such target, in which the module comprises microstrip circuitry in combination with a Shottky diode arranged to act both as an oscillator and also as a mixer. With this arrangement, great operational sensitivity and reliability can be achieved and yet the module can be constructed in a simple and inexpensive manner as a conveniently small and compact device. In one embodiment the module may be in the form of a thin disc having a thickness of, say 0.5 cm, and a diameter which may be as small as about 3 cm. The said module may be connected to signal processing circuitry responsive to the relationship between the transmitted and reflected signals, for example so as to produce an output whenever target movement is detected, or only so as to produce an output when one or more parameters of such movement (range, velocity, direction) are of a predetermined nature or changes in a predetermined manner. Most conveniently, said signal processing circuitry may be provided in the form of a signal processing module separate from the aforesaid generating and receiving module, and, in accordance with one embodiment, the two modules may be up to 100 m away from each other and interconnected by a simple coaxial or twin cable. The signal processing module may be powered by mains supply, or a 12 V d.c. battery or otherwise as appropriate, and such module may also act to supply operating power to the generating and receiving module. The output produced by the signal processing module may be utilized for alarm purposes to actuate a separate remote warning bell or siren or buzzer or the like. Alternatively, if desired, the movement detector of the invention may incorporate an alarm module connected to the said signal processing module and arranged to produce modulated warning tone when actuated by said output. Such alarm module may incorporate a stand-by rechargeable battery. As mentioned above, the detector of the invention may operate in the manner of a simple Doppler detector sensitive only to movement, but preferably the transmitted microwave signal is modulated so that quantitative information as to range, velocity and direction can be obtained, the detector thereby operating in accordance with a diplex configuration. With such diplex configuration, advantageously the requisite information can be obtained with a particularly simple construction. In accordance with one embodiment of the invention, the diplex, configuration is such that the transmitter is repetitively switched between two frequencies say 3 MHZ apart at X-band to give two discrete spectral lines separated by 3 MHZ . The magnitude of such frequency difference may be decreased with increase in the maximum range to be measured (beyond say 25 m). The reflected signal from a moving target results, after mixing in the Shottky diode, in a reflected signal which is a composite of two Doppler signals sampled sequentially at the modulation rate (say 10 kH Z ). The relative phase of these Doppler signals provides range and velocity sense information, whilst the Doppler beat frequency is proportional to the target velocity relative to the detector. The switching of the transmitter between the two frequencies may be achieved by square-wave modulation of the Shottky diode bias current. With such square-wave modulation particularly simple video circuitry may be used, however sinusoidal modulation may alternatively be used and this allows improved range resolution without reducing the maximum unambiguous range. With regard to the Shottky diode, this may be a conventional barrier injection transit time device formed from a p + np + construction. Alternatively, a specially fabricated ion-implanted device or an `electron` type Shottky diode may be utilized. While the utilization of a Shottky diode constitutes an essential feature of the first aspect of the present invention, it has been found that the utilization of a Gunn diode (i.e. a transfer electron diode) may be advantageous in the context of the present invention in the case where microstrip circuitry of diplex configuration (as described above) is also utilized. Thus, and in accordance with a second aspect of the present invention there is provided a microwave movement detector comprising a microwave generating and receiving module for use in generating a transmitted microwave signal to be intercepted by a moving target and for receiving a reflected microwave signal from such target, in which the said module comprises microstrip circuitry in combination with a Gunn diode arranged to act both as an oscillator and as a mixer, said circuitry being of diplex configuration. Whilst it is anticipated that the present invention will find particular application in the context of an intruder alarm such as a burglar alarm, it is to be understood that the invention is not intended to be restricted to this field of application and the detector of the invention may be utilized for detecting movement of persons or vehicles or any other suitable targets in any suitable environment for any suitable purpose. When utilized as an intruder alarm the said generating and receiving module, due to its possible small size, can be easily and conveniently concealed. Also multiple such modules may be utilized together to enable a large area to be protected. By virtue of the range gate facility, false alarms can be minimized. In the case where the invention is applied to the monitoring of vehicles, a standard Doppler format may be used. Selective monitoring can be achieved by virtue of the direction sense of the detector, and the range gate facility is useful in distinguishing vehicles in a cluttered environment. In the case where the invention is applied to the counting of persons entering or leaving an enclosure, due to the direction sense of the detector it is possible to distinguish between persons entering and leaving. Due to the use of the Shottky diode in diplex mode in microstrip circuitry, and having regard to the fact that the diode acts both as oscillator and mixer, a particularly simple, inexpensive and compact construction results. It is of course to be understood that the invention is not intended to be restricted to the details of the above embodiment which are described by way of example only. 5.3 THE MMD HOW OUR DESIGN WORKS: 3.2.1 All the RF magic is accomplished with Q3 and D1. Q3 is a free running microwave oscillator operating at a frequency of approximately 1.0 GHz. The frequency is determined by the length of the etched strip line and the lead lengths (inductance) of the associated oscillator components. 3.2.2 The microwave RF energy that is developed by the oscillator is radiated in an omni-directional pattern from the antenna. This radiated energy will fill the surrounding area with radio waves. These waves will be reflected back toward the antenna. 3.2.3 Heres where the Doppler Effect comes in. If within that area there is an object that is moving, the waves that are reflected will either be higher in frequency if the object is moving closer or lower if moving away. The MD3 doesnt really care which direction; it is only looking for a frequency difference. 3.2.4 The radiated signal and the redirected signal are mixed at diode D1. The difference in the two frequencies provides the input to U1: C pin 10. This frequency (the difference) is in the range of 10 Hz to 40 Hz. U1: C is the amplifier that feeds the sensitivity potentiometer R8. 3.2.5 Transistors Q1 and Q2 function as a very precise voltage regulator providing the proper bias to the amplifiers. 3.2.6 U1: D functions as a band pass filter and amplifier. Buffer amplifier U1: A provides the drive to output transistor Q4. CHAPTER: 6 INTERFACING TECHNIQUES If we want to extend this project at higher level we are required to interface the MMD circuit output with the extended circuitry with the help of following circuit diagrams. (THESE TECHENQUES HAS NOT BEEN USED IN OUR PROJECT) 6.1 INTERFACING CIRCUITS: The MD-3 output transistor provides a pulse when motion is sensed. Here a probably asked question is, ââ¬Å"How do I make it do something?â⬠We can interface this circuit with many other circuits; a few examples are given below. 6.1.1 Interfacing with the relay can drive another circuit; it may be a light, a camera, an alarm system etc. 6.1.2 The microwave motion detector circuit can be interfaced with a transistor (PNP or NPN).This transistor act as a relay it can also drive some other circuits; it could be a light or any security system or an automatic door opening system. 7.1 CONCLUSION
The Myth Of Equality In American Society Politics Essay
The Myth Of Equality In American Society Politics Essay The American society is viewed by the global community as the nation of freedom, as the country in which any person is able to experience the greatest degree of equality. Indeed, the United States of America is undoubtedly the most diverse nation in the world with people representing different cultures and ethnicities. The Constitution of the United States guarantee equal protection of all citizens and prohibits discrimination based on gender, age, physical characteristics, or any other factors which make one person different to the others. However, it should be recognized that the American society does not function as the nation of equals as discrimination, stereotyping, and prejudices are still widespread. The American children are taught at schools that the United States of America was founded with the idea that all people are considered equal (Jeynes and Martinez 195). The history books suggest that the founding fathers did not apply this idea to the African American slaves in the South; however, the ratification of the Constitution was the first step to bring the principle of equality into law. Even though the American government grants equal rights and equal protections to all citizens, it would be wrong to state with confidence that the American society is the nation of equals. Jeynes and Martinez emphasize that as long as Darwinism evolution remains the sole teaching about mans origins that children are exposed to in the public schools, racism will be highly institutionalized in the way children are instructed (196). Even though this argument deals mostly with religious aspects of the human evolution, Jeynes and Martinez describe the current situation in American society very clear. Even today, many people are strongly convinced that the Whites are superior to African Americans in their intellectual abilities while African Americans are superior to Whites in terms of physical development and athletic skills. It is possible to assume that African Americans, for example, are more skilful in sports due to their physical characteristics; however, this difference should not become the benchmark for dividing society in groups. Due to the social stratification and the segmentation of the nation into different groups, the concept of equality is present on the paper only. Every person has a number of groups he or she belongs to. For example, a teenager may belong to the African American group by his race, basketball team by his sports participation, Christian group by his religious beliefs, and high school community by his age. From one side, social identification is necessary for the development as well as normal functioning of any person. From the other side, the institutionalized social groups contribute to further division of society and diminishment of the concept of equality. Sidlow and Henschen draw the attention of the American nation to the idea of civil rights which guarantee all citizens equal treatment under the law, as supported with the Fourteenth Amendment (99). From the standpoint of democracy, all people have equal rights as well. However, the idea of equality within American society is an ideal which has not been achieved yet. Numerous groups in American society struggle today to obtain equal treatment. For example, the gay couples try to obtain legal equality in terms of marriage and adoption of children and millions of illegal immigrants strive to achieve legal status of citizens. Thus, the law does not allow discrimination against a particular group of people; however, it does not imply that equality is created. In a sense, the emergence of the independent United States is based on the history of discrimination against minorities. Sidlow and Henschen emphasize that discrimination against women, African Americans, and Native Americans dates back to the early years of the nation, the time when farmers in the South refused to give equal rights to others (99). As more and more diverse people arrived to the United States, it was necessary to bring in the issue of equality into political framework. Nevertheless, it was not enough to ensure equality on the paper; it was necessary to integrate the concept of equality into social relations. Consequently, today millions of people belonging to diverse minority groups have no opportunity to experience equality in their daily lives. It is important to mention that despite of the widespread recognition of the importance of equality and tolerance towards differences among people, the scientific and academic community started to focus on the rights of minority people only a decade or two ago. In particular, the idea of the inclusive classrooms emerged only several years ago, when the educators realized that their classrooms were composed of diverse students with different needs. It does not mean that classrooms became diverse only a decade ago. It means that the issue of equality has not been properly addressed before. Initially, it was expected that the diverse people coming to the United States would be assimilated into the mainstream culture. However, Vera and Feagin argue that today the mere idea of assimilation is no longer effective. Thus, clear distinctions are made between those who believe all people should be given a fair chance to succeed and those who believe that if people dont have equal access to res ources, measures should be take to equalize opportunity (299). Unfortunately, the equality in American nation exists mostly theoretically rather than practically. People are judged by their market value, as Americans are taught to respect the wealthy and despise the poor. The human character has less value than social and physical attributes. Moreover, Vera and Feagin suggest that very few people are willing to support proactive measure to ensure equality because it would mean loss of the privileges for the dominant groups. At the same time, many people believe that equality is the defining feature of the American society, as any person from any part of the world is able to become successful in this country. However, this view is expressed in support of the economic success rather than social equality. In addition to economic measures of success, the American people attribute significant value to individualism as opposed to collectivism. In other words, Americans tend to emphasize the importance of individuals rather than teams, groups, or community. Naylor argues that because of this particular flavor of self-reliance, the American nation can not become equal (56). For many people, equality means nothing more than equal participation in educational and educational systems, for example. Indeed, equality does not mean that all people have equal talents and are able to achieve outstanding success. Equality is not attainable in these aspects. Therefore, equality means equal access to systems and equal opportunities for all people. The global community believes that the American nation grants equal opportunities to all citizens. Nevertheless, until today no significant progress has been achieved to guarantee equal opportunities. Many initiatives have been introduced to tackle the problem of discrimination with the hope to integrate equality into American society. For example, the affirmative action was institutionalized to give minority students a better chance for admission. However, affirmative action initiative failed because of its ineffectiveness. The American society is not a nation of equals, and the removal of the political barriers to equality did not result in the removal of economic and social barriers as well. Naylor suggests that the members of the mainstream culture tend to focus on freedom, the rights of the individual, equality, achievement, and mobility (57). The members of other groups strive to become part of mainstream culture as well. The reason to seek membership in dominant culture is rather obvious for many centuries, the dominating groups have been enjoying more rights and freedoms. Today, the situation is not much different to the time when African Americans were slaves, for example. Even though slavery has been prohibited, members of minority groups do not have equal access to political, economic, and social systems. The reason for the failure to bring equality into society is not related to the weakness of political system or lack of opportunities for all. The key issue behind lack of equality is related to cultural and economic factors. For example, a teenager born to immigrant parents may not have equal opportunity to attend college compared to other students only because his parents are not able to afford education. Consequently, this teenager is not able to take advantage of equal opportunity to have well-paid job because lack of education is projected on career. In the long-run, this teenager is likely to become an adult who does not fit the mainstream group of successful, educated Whites not because of ethnic or racial differences but rather because of the social and economic barriers. In conclusion, the American nation prides itself for its principle of equality, freedoms and rights for all. Nevertheless, the reality is that equality remains nothing more than a concept addressed by the American Constitution. As the nation of immigrants, the American society includes diverse people who strive to take the fullest advantage of their individualism. To ensure equality, the government should remove not only legislative barriers to equal participation but also provide all people with an opportunity to participate in economic and social systems.
Sunday, August 4, 2019
Prelude to Beowulfôs Last Fight :: English Epics Literature Anglo Saxon Essays
Prelude to Beowulfà ´s Last Fight The Old English epic Beowulf depicts Anglo-Saxon warrior culture where fate (wyrd) governs the actions of the hero. Beowulf, now over seventy years old and king of the Geats, has earned his respect and glory on the battlefields as a great warrior. The honorable old king has ruled for fifty years, and according to the author, "he was a wise king, an old guardian of the land" (Norton, 55), when the dragon attacks Beowulf's Hall, assaulting Geats at night. The dragon - "the worm" - as he is referred to sometimes by the poet, while guarding the treasure in the depth of his cave, is awakened by a slave who steals the cup from his hoard. The dragon, being greedy, is infuriated: "the hoard-guard waited restless until evening came; then the barrow keeper was in rage: he would requite that precious drinking cup with vengeful fire."(Norton, 56) The treasure, that is now guarded by the worm, once (over three hundred years ago) belonged to a tribe of great warriors. Many have died over the years on the battlefields; only one, the Last Survivor, has escaped the terrible fate, and so he speaks: " War-death has taken each man of my people, evil, dreadful and deadly, each of those who has given up this life, the hall-joy of men. I have none who wears sword or cleans the plated cup, rich drinking vessel. The company of retainers has gone elsewhereâ⬠¦ There is no harp-delight, no mirth of the singing wood, no good hawk flies through the hall, no swift horse stamps in the castle court. Baleful death has sent away many races of men." (Norton, 56) Parallel to this speech is the ubi sunt passage from Old English poem "The Wanderer." The old warrior, the wanderer or, as the poet calls him, "the earth-walker," who has lost his comrades in the battles, talks about the loneliness of exile and the aimlessness of war: "Where has the horse gone?
Saturday, August 3, 2019
St. Louis Communities :: essays research papers
"Where do you live?" If you have ever met anyone in St. Louis, this is probably one of the first questions asked. Whether you are from the city, county, north, south, east or west, most people in St. Louis are convinced that they can identify you by what community you come from. The actual city of St. Louis is broken into three main parts; the North Side, South City and the Central West End. The three areas combined have approximately eighty established neighborhoods. If you decide to add the western part of St. Louis County, this number is most likely to double. Many areas of the city were originally established by separate ethnic groups while most others were developed by social groups. You don't have to be a genius to realize the area known as "Dutchtown" was established by German immigrants. However, it may not be so easy to identify areas such as "Dogtown" or "The Hill" as the Irish and Italian areas of town. The Central West End is historically a very liberal yet sophisticated part of the city. This area can be further subdivided into a middle class and a very wealthy area depending on which side of Kingshighway you live on. University City was started mainly by Washington University students and is still predominantly populated by area college kids. This portion of the city has also grown a subdivision known as "The Loop." The Loop is extremely liberal and thought of by most people as almost mysterious or bizarre. A new phenomenon happening in our city is the rebirth of many of our older and rundown areas. One of the best examples of this is the "Soulard" area of town, which now has an established nightlife as well as exquisite historical antique homes. Lafayette Square has also enjoyed the same type of success as Soulard. It is still in the middle of a high crime area, but is populated by upper-class people with beautiful homes with elaborate wrought iron fences and intricate security systems. This trend of fixing up old flats is spreading out from the areas of Soulard and Lafayette Square to neighboring communities at a rapid pace. The Compton Heights area is coming back with rebuilt old Victorian styled houses and private gated streets that contrast the French styled flats of Soulard. The Shaw and Tower Grove area are also following the lead of revitalization similar to these charming old neighborhoods.
Friday, August 2, 2019
Was the religious schism during the sixteenth century symptomatic of political, social, and economic problems?
The religious schism took place in the 16th century, mainly between the Catholic Church and Protestants. During these times, many changes were brought forth to Europe during this schism. Although the religious schism brought forth an age of Reformation of the Catholic church, the religious schism started wars, revolts across Germany following the teachings of Luther, and the struggle for power between Catholicism and Protestantism. The religious schism began because of the making of Protestantism. The Catholic Church was corrupted in many ways, for example, the selling of indulgences, as Albrecht writes,â⬠â⬠¦Ã the contribution to the chest [church funds], of the rebuilding of the said churchâ⬠¦. â⬠(Doc1). Albrecht reveals the uses of the money made by indulgences, and it is the churchââ¬â¢s funds. Martin Luther was one of the critics that criticized the corruption of the church and was excommunicated in his trial (The Diet of Worms) and he escaped to Germany. The idea of Protestantism quickly spread over Germany, as people began to be interested because his religion was simpler and was based on faith. Luther worked with authorities and brought upon reforms of the papacy and instructed all Christians to obey their rulers.However the radicals (the group of people that did not want the church and state together) began to interest German peasants with their ideas of social change. Since the 15th century, the peasantââ¬â¢s conditions have worsened and the failure of crops in 1523 and 1524, and nobles began to anger peasants requiring extra work and taking livestock. The peasants believed that Luther will be on their side, and in the beginning, he was. He was against the lords for robbing their own subjects. However, he did not want a rebellion, as Luther states, ââ¬Å"â⬠¦Remembering that nothing can be more poisonous, hurtful, or devilish than a rebel. â⬠(Doc 3). When the rebellion broke out, Luther did not support the peasants. He stated that the bible had nothing to do with earthly justice. In the HRE, the church officials viewed the spread of Protestantism in Germany (which they viewed as heresy) was causing the rebellion to happen. As Michael Eisenhart is possibly a church official and views the rebellion as a part of Protestantismââ¬â¢s teaching. ââ¬Å"â⬠¦through certain citizens here who adhere to the heresy of Luther, it has come about that bad, false teaching has greatly got the upper hand.â⬠(Doc 5)The church viewed this event as an event caused because of the teaching of a ââ¬Å"heretic. â⬠In the end, the nobles crushed the rebellion and killed about seventy five thousand peasants. This event strengthened the strength of nobles and Protestantism lost its appeal in the lower classes. However, Protestantism continued to spread to areas in Europe. Other types of churches were made that was similar to Lutherism but different in ways of their own. For example, the Calvinists believed that no matter what people do, God has already decided their fate.One of the churches of Protestantism is the Anglican church. It was made by King Henry VIII, after the pope refused annulment from his wife. In the Act of Supremacy, English Parliament in 1534, Parliament, influenced by the monarchy and declared, ââ¬Å"â⬠¦ that the king, our sovereign lord, his heir and successors, kings of this realm, shall be taken, accepted and reputed the only supreme head in earth of the Church of England, called Anglicans Ecclesiaâ⬠¦Ã¢â¬ . Parliament agreed with the king and broke away from the church and admitted the king, King Henry VIII power over the church.He was able to gain wealth from the lands of the church he seized and took its riches. This help with the economy of England. The constant fighting and quarrels in Germany was because of Catholicism and Protestantism against each other. Protestantism Northern States were against the Catholicism Southern States. After years of fighting, the Peace of Augsburg was signed. The HRE declared that,â⬠â⬠¦ the Holy Empire, will not make war on any estate of the empire on account of the Augsburg Confession and the doctrine, religion, and faith of the same.â⬠The peace of Augsburg will last about 70 years before the Wars of Religion begins. However, this treaty, ended fighting in Germany and the Church admitted Protestantism as a religion, but the fighting will resume after the failure of the peace. Though the religious schism brought for an age of Reformation, it also brought an age of war and revolts against the nobles. Also, during this age, there was a power struggle between the Catholic Church and Protestants. It brought an age for power and intensifying atmosphere, as the two religions faced off in Europe.
Thursday, August 1, 2019
Impact of New Media on Society – Smartphones
Impact of New Media on Society: Smartphones The term ââ¬Ënew mediaââ¬â¢ is one that is constantly evolving, and on a daily basis, encompassing more as well as newer and innovative elements in it. In the broadest sense, it is the opposite of ââ¬Ëtraditional mediaââ¬â¢, which includes print, television and film, and radio. According to New Media Basics, new media is essentially interactive, and it includes a host of communication mechanisms that revolve around the internet, and include elements such as e-mail, social networks, websites, blogs, online videos and pictures etc.And new media also includes new media devices and technologies such as laptops, tablets, mobile phones, i-pods, and a host of other devices, which also includes smartphones, the main emphasis of this paper. New media tools have enabled increased collaboration between people across the world, and has thus accelerated the pace and reach of globalization. It has allowed an unparalleled connectivity with wid espread information, and most significantly, it has allowed for creativity, inventions and inno vations, as well as entrepreneurship.This paper will focus on the impact of smartphones on society, focusing on the education, business, health and government sectors, as well as on an individualââ¬â¢s personal life. It will weigh the argument from multiple sides, with the support of theories put forth by specialists and theorists within this realm. The IBM Simon, released in 1993, was the first ever ââ¬Ësmartphoneââ¬â¢ known to man. This propelled Nokia and Ericsson into the creation of their own superior versions, the ââ¬ËCommunicatorââ¬â¢ and GS88 respectively.It was in 2002 when the smartphones as we know them came into being with the Pocket PC, Palm OS and most significantly, the first Blackberry 5810. It was after this point that smartphones began to flood the market, with Appleââ¬â¢s I-Phone line, the Google Android, the Motorola Droids, HTCââ¬â¢s, and the Sams ung line of smartphones. Smartphones have had a dizzying and echoing impact on society, with its effects being felt in nearly every aspect of life. In regards to reach and richness, no doubt it is wide spread, and rich in content, options, accessibility etc. According to Colin Dean Murphy of University ?of? KwaZulu?Natal South Africa, it has been statistically proven that mobile phones are the most widespread and predominant ICTââ¬â¢s (Information and Communications Technology) of this day and age. For starters, ââ¬Å"they are generally cheaper than computers, offer mobility, and are densely converged platforms. â⬠And most importantly Murphy states, that this has led to ââ¬Ëglobalized convergenceââ¬â¢. It has supported and significantly enhanced links to global networks. Smartphones have enabled constant connectivity, which one could argue is also allowed by computers, but what distinguishes the smartphone from a laptop or desktop, is the factor of mobility.Mobile ph ones enabled connectivity between people via phone calls and text messages, however smartphones have disrupted this, as they have allowed connectivity that is almost unparalleled. It has allowed people to interact on social networks such as Facebook, Twitter and Linkedin, with all of these creating applications for the multiple smartphones out there. This does not only allow for enhanced communication but has enabled people to, for example via Facebook, to ââ¬Ëcheck inââ¬â¢ and thus publically state their current location, allowing for others to physically access them more easily; it has also enabled eople to share precious moments such as holidays, graduations, holidays, a babyââ¬â¢s first steps etc. with their friends and family as soon as the picture is snapped with the smartphones cameras. It has brought about ease and efficiency in the workplace, and have allowed for employees, employers and coworkers to constantly be accessible officially via e-mail for instance, and important documents and information can be exchanged constantly. The browsers are available just as they are on a laptop or desktop, and enables students and the work force alike to promptly search for things, translate documents, and research topics and so on.Students have found it to enhance their learning, and even enabled them to do entire assignments while being on the go. Additionally, smartphones are a source of entertainment, ranging from music, to fun apps, games and videos. It is for these smartphones that a whole range of apps have been created. Some apps are entertainment oriented, such as those surrounding photographs, music and games; others allow you to book flights or do bank transactions, while some are designed to accelerate knowledge and learning.There is no genre that has not been explored by apps, and no lifestyle and culture, preferences and tastes that they have not catered to. We will now examine the effects, both negative and positive, of smartphone in detai l across different sectors. Education Sector: In ââ¬ËThe Impact of Mobile Access on Motivation: Distance Education Student Perceptionsââ¬â¢, by Penn State University, students were interviewed in regards to their usage of smartphones, as well as the benefits and drawbacks they perceived and experienced.Overall, students found smartphones to expedite learning and information, while offering the gift of mobility. Students we re able to access textbooks and course materials on their smartphones, their study time knew no barriers, as they could access the information at their ease and convenience. It was easier for them to seek help and get advice, as well as getting important class course updates from online groups and communities. Another favorite was flashcards, which students would download on their phones and study, especially if they were commuting, for instance on the subway.Students can even download or stream class podcasts on their phones, and listen to it at a later tim e, and to utilize otherwise ââ¬Ëdead timeââ¬â¢ (for instance, commuting, travelling, waiting for lift/cab etc. ) This paper explored an up and coming sector, which has accelerated, and has also come to be entir ely defined by smartphones: ââ¬Ëm-Learningââ¬â¢. M stands for ââ¬Ëmobileââ¬â¢, which in turn stands for ââ¬Ëon the moveââ¬â¢. MLearning evolved from eLearning, since in this day and age, with the spread of smartphones and tablets, people are mobile, on the go, while they are acquiring knowledge, skill and information.According to Tella, an m-Learner can access and work on his smartphone at any given point, at any given time, and thus it means the decentralization of information handling. According to USA Today, schools and universities globally are spending a large part of their budget on smartphones and tablets as a mode to attract students to their institutions as they have realized that it is such an important element in supplementing education. How ever, students are not all praise either for their smartphones. They have found smartphones to be very intrusive.With the ever increasing pressure of studies, they feel that they cannot get away, as their smartphones are always with them, allowing them to get notifications and calls for duty by their class mates and professors alike. Also, it has made students lazy to a degree, and encouraged several to do their work in the last minute, which in turn results in many of them plagiarizing content and handing it in to the teacher right before class. Smartphones offer such an attraction and constant entertainment that students are sucked into the online world, that it greatly hinders interaction with nature and the value of face to face communication.Business Sector: The Blackberry was initially marketed as a phone for the business man, and smartphone services initially were primarily for the business and industrial sector. Forrester Consulting conducted a study on RIM to ascertain the economic impact of a blackberry solution in North American enterprises. Blackberry smartphones, as well as other smartphones offer invaluable services and features to enterprises, such as ââ¬Ëwireless voice and data applications including push e-mail, wireless calendaring, voice, text messaging, multimedia applications, and Web browsingââ¬â¢, to name a few.Forrester Consulting found that with the introduction of Blackberry smartphones and services, (and thus we can apply this to all smartphones over all) there was an increased productivity, greater efficiency, less wastage and a more economical utilization of time and resources. Smartphones allow enterprises and businesses to constantly be connected. Business decisions can be made promptly; important files and documents can be sent, accessed, read and approved as soon as they crop up. However, a major criticism to this development is the fact that the line between ââ¬Ëwork timeââ¬â¢ and ââ¬Ëleisure timeââ¬â¢ has be en blurred.No longer can an individual be separated from his work life, and it keeps invading his personal life, family time, meal hours and so on. Mazmanian, in her 2006/2007 study on Blackberry handhelds and services pointed out several benefits and drawbacks experienced by Blackberry users, and their gains and costs, can effectively be applied to other smartphones. On the one hand, she said it enabled monitoring communication flow and controlling message receipt, but conversely, there was a compulsion to always check your blackberry, and an inability to disengage yourself from it.There are major implications in the realm on social relations, as it reduced the quality of social life, and quality time spent with family and friends, and instant messaging applications such as Whatsapp and BBM, resulted in people spending less time together, and actually engaging in verbal communication and physical contact. Health Sector According to Boulos, Wheeler, Tavares and Jones, the health sec tor has found smartphones very advantageous to their industry. It has allowed for immediate access to medical sites by doctors and patients alike.Patients are able to make their appointments on their smartphones, with several hospitals and clinics having their own apps for this purpose. Also, patients of various diseases have apps, specific to their diseases and treatments on their phones, which allow them to monitor their health regularly and efficiently. Government Sector: The government sector as well has initiated and embraced the age of m-Government, an enhanced, and rather mobile form of e-Government, as explained by Pierre Rossel, Matthias Finger and Gianluca Misuraca in ââ¬Å"Mobileâ⬠e-Government Options: Between Technology-driven and User-centric.Through this the government attempts to invest in research and development in ICTââ¬â¢s. It aims to maximize productivity and innovation in areas of public administration. It also aims to create a link and relationship be tween the government and the users of their services. As we can see from the world around us, new media is a very powerful medium, which creates a ripple effect all over society, and smartphones is just one of its tools. There are several disadvantages that this technology depicts, but it is hard to compete with the advantages and progress it offers across the board, in every sphere of human life.It offers limitless possibilities, and has offere d solutions and innovations in the various facets of society, from education to business, entertainment to health, whilst catering to the old and the young, cutting through cultures, nations and any other tangible or intangible barrier.BIBLIOGRAPHY: New Media Basics Aids. gov http://aids. gov/using-new-media/new-media-basics/ Mobile? Convergence? and? Mobile? Adoption? Colin Dean Murphy University? of? KwaZulu? Natal South Africa http://146. 230. 128. 141/jspui/bitstream/10413/6320/1/Murphy_Colin_Dean_2012. df ââ¬ËThe Impact of Mobile Acc ess on Motivation: Distance Education Student Perceptionsââ¬â¢, Penn State University http://learningdesign. psu. edu/research/MLRTWhitePaper. pdf M-Learningââ¬âCybertextual Travelling or a Herald of Post-Modern Education? Sappo Tella, 2003 University of Helsinki http://www. helsinki. fi/~tella/mlearningtella. pdf Economic Impact Of A BlackBerry Solution In North American Enterprises Forrester Consulting, 2009 http://us. blackberry. com/content/dam/blackBerry/pdf/whitePaper/northAmerica/english/Economic_I mpact_Of_BlackBerry_Devices_2. df UBIQUITOUS EMAIL: INDIVIDUAL EXPERIENCES AND ORGANIZATIONAL CONSEQUENCES OF BLACKBERRY USE Mazmanian, Yates and Orlikowski MIT Sloan School of Management http://seeit. mit. edu/publications/blackberry_aom. pdf How smartphones are changing the face of mobile and participatory healthcare. Boulos, Wheeler, Tavares and Jones, 2011 http://www. biomedical-engineering-online. com/content/10/1/24 ââ¬Å"Mobileâ⬠e-Government Options: Between Te chnology-driven and User-centric Pierre Rossel, Matthias Finger and Gianluca Misuraca Ecole Polytechnique Federal de Lausanne, College of Management of Technology Switzerland http://issuu. com/academic-conferences. org/docs/ejeg-volume4-issue2-article81 http://www. bitrebels. com/technology/the-evolution-of-smartphones-infographic/ http://www. usatoday. com/educate/devry/devry1. pdf http://sheryllam. wordpress. com/2012/06/06/the-impact-of-electric-telegraph-and-iphone-on-socialrelationships/ http://thetamnews. org/2011/09/editorial-the-impact-of-smartphones-on-student-life/ http://www. marketingtimes. com/2011/01/whats-the-impact-of-smartphones-social-media-on-ourlives/
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