Eminem is Right Essay Example | Topics and Well Written Essays - 1000 words

Eminem is Right - Essay Example The analysis presented by the author strikes a chord and there is no denying the fact that music is becoming more and more oriented towards violence and disdain for authority. While the music of previous generations’ signalled rebellion from parental and other forms of overbearing authority, the music of the current generation signals rebellion from absentee parenthood and its consequences. Not only are more and more children finding themselves caught in the middle due to parental differences but more and more children are turning to drugs and juvenile crime as a means of satisfying their selves. The growth of drug abuse is substantiated by statistics on death specially suicide by young adults. Similarly juvenile delinquency is claiming an increasing number of children and young adults with crime rates increasing across the nation. The once conceived notions of crime in the ghettos and less privileged section of town and suburbs is giving way to increasing crime in the well to do and affluent neighbourhoods. The devolution of the family system in urban America following decades of technological progress and the rise of materialistic ideology is partly to blame for these changes. As more and more families are breaking up by parents who cannot tolerate each other, the real victims are the children. When a family breaks up the adults are often in a position to handle the emotional trauma inflicted by such a change. However the children are often not in a position to handle the emotional trauma of parental breakup. This phenomenon is often exacerbated with both parents disowning the child as a responsibility. In case that the child is adopted by either parent, there are still large chances for uneven childhood to result. The child is often taken care of by the mothers who are forced to find jobs to manage their fiscal expenses. An estimate puts the number of single parent mothers under the poverty line at 40% of the total population beneath the poverty line in America. This forces single mothers to look for two or more jobs to facilitate the financial position. Moreover such mothers also try to look for support in other men such as boyfriends who often take advantage of such women’s situations and abandon them when they desire. The child is still prone to a damaged childhood as a result of these experiences and the resulting despair is often made up by music that reflects these themes. The large numbers of albums and tracks with similar themes being sold in ever increasing numbers indicates that there is a large swath of the population to support such purchases. These segments of the population are often disadvantaged and disenchanted teenagers and young adults who are looking for solace in music. Most of the tracks by such musicians cover the themes of broken homes and the resulting emotional trauma to a very large extent. Moreover most musicians provide a way out for most of these kids by ending their songs with lyrics of enco uragement or success. The underlying hope created by these lyrics compels most teenagers to listen to such music and as such there seems little harm in listening to messages of hope and success. However what most musicians do to make their â€Å"popular appeal† ever greater is to include anti social behaviour and deviant trends such as drug use,

Marketing Coursework Example | Topics and Well Written Essays - 1000 words

Marketing - Coursework Example Age is one of the most important demographic groups in marketing. Age changes are linked to products and services changes such that as the consumer moves from one age group to the next one they will affect a change in products and service needs. For instance, an infant will have a need for infant formula while a teenager will not need infant formula. Gender is a demographic segmentation that describes the sexual orientation of a consumer. Males and females will require distinctively different products and services. For example, a female would require tampons, skirts, and dresses while a male would require boots, trousers, and suits. Income involves demographic segmentation of a population based on earning groups. High-income earners will be able to afford more expensive, higher quality and quantity of products and services while their low-income counterparts are restricted by their earning and would only afford to purchase low priced products and services. Social stratification invol ves segmenting a population based on their perception of their social standing. Higher social class customers will purchase high-end products and services while their low social class counterparts will purchase low-end products and services. Religion places specific demands on populations that would necessitate that they either accept or reject certain products and services. For instance, Muslims are not allowed to consume pork as such opening a pork butchery in a Muslim dominated area would be an unsound business choice.

Impact of Leadership and Motivation on Organizational Culture and Essay

Impact of Leadership and Motivation on Organizational Culture and Performance - Essay Example A review of a considerable proportion of existing literature that has been published in the field of leadership and its impacts on organizational culture and performance finds that these three factors have been independently interconnected. Experiential researchers have mentioned that a true leader will always play a crucial role in enhancing organizational culture and subsequently performance. Furthermore, a number of aspects of the organizational culture literature imply that the role played by leaders in a critical enabler of creation and maintenance of specific types of culture. Equally, the literature published in the field of leadership states that the capability of understanding and work in a culture is a prerequisite to becoming an effective leader. However, in spite of the inherent and explicit linkage between leadership, organizational culture and performance are segments of organizational theory, very little concentration has been devoted to understanding the association b etween the concepts and the effect that such a relationship may have on organizational performance. The deficiency of critical literature exploring the performance repercussion of the links between leadership and organizational culture is highly surprising given the fact that there are plenty of reference regarding the references to the importance of leadership and organizational culture as far as the smooth functioning of an organization is concerned. A brief overview of the history of literature regarding the topic of leadership finds that the researches on leadership and organizational performances can be broadly classified into a number of relevant categories. Early researches on leadership emphasized on identifying the personality traits that characterized successful leaders. According to trait theories successful leaders are born and they have certain instinctive qualities that differentiate them from no leaders. However, the difficulty in classifying and corroborating these a ttributes led to a pervasive criticism that in turn paved way for the emergence of style and behavioral leadership approaches. Behavioral and style oriented leadership shifted the focus away from the attributes possessed by leaders to the behavior exhibited by them.

Internet TV Assignment Example | Topics and Well Written Essays - 1000 words

Internet TV - Assignment Example At the same time, it will save huge cost of the viewers. The company’s aim is to deliver news instantly across its network so that it reaches the customer on demand and at the same time faster than its competitors. The internet TV model will help the company achieve this goal. In the traditional TV model, the broad casting station had to depend on the cable operator for transmitting their news to viewers. Now, this model had limitation that some cable operator might charge extra money to viewers to watch the channel which often acted as a barrier between the company and target audience. With the new O-T-T model, the company will be able to reach their customers directly through internet. The broadcasting network will receive payments from the customers directly by shifting to the new model, as it eliminates the cable operator from the picture. Such model is beneficial for both the NBC as well as its viewers as the company will be able to receive new streams of revenues that we re blocked with cable operators in the earlier model (Odlyzko, 2001, p.8). In short we can say that there will no net losers for the new model since the viewers will pay less since they are paying directly to broadcasting station and the NBC will receive greater revenues since it does not have to share its revenues with the cable operators. Action Plan for Rogers Rogers Communications Inc. is a diversified Canadian telecommunication company. The company broadcasts its network across various media including the television, radio, internet, etc. If we consider the traditional TV model which the company used to reach their customer, we will find that the model has limited scope for transmission if the company wants to be global. This is mainly because when domestic company plans to operate globally, it has to take many clearances from the promotional boards. At the same time, it will need local distribution networks. Thus, we can say that the entire process is complex as well as techni cally costly to implement that way. The company has the option to opt the O-T-T TV model that will enable the global viewers, thanks to the application of e-commerce industry. This model does not need local distributors, or foreign clearances. All a customer needs to see their favorite channel is to connect their television with internet using a set-top box. Thus, if Rogers implement this model, their organization will definitely have competitive advantage as well as cost advantage. At the same time, large number of viewers across the globe may be targeted without any troubles. The model is very simple and easy to implement. In short, we may say that Rogers as well as its TV viewers will be gainers if this model is implemented by the organization. Action plan for Bell Canada Bell Canada is a Canadian telecommunication and media company. The company’s main competitor is Rogers. With both the company’s working in same line of business, the company that will reach its vie wers faster and smarter way will be the gainer. If Bell adapts the O-T-T model, it will significantly reduce its cost of transmission as they will not have to share their revenues with the middle-men or the cable

Impact of Leadership and Motivation on Organizational Culture and Essay

Impact of Leadership and Motivation on Organizational Culture and Performance - Essay Example A review of a considerable proportion of existing literature that has been published in the field of leadership and its impacts on organizational culture and performance finds that these three factors have been independently interconnected. Experiential researchers have mentioned that a true leader will always play a crucial role in enhancing organizational culture and subsequently performance. Furthermore, a number of aspects of the organizational culture literature imply that the role played by leaders in a critical enabler of creation and maintenance of specific types of culture. Equally, the literature published in the field of leadership states that the capability of understanding and work in a culture is a prerequisite to becoming an effective leader. However, in spite of the inherent and explicit linkage between leadership, organizational culture and performance are segments of organizational theory, very little concentration has been devoted to understanding the association b etween the concepts and the effect that such a relationship may have on organizational performance. The deficiency of critical literature exploring the performance repercussion of the links between leadership and organizational culture is highly surprising given the fact that there are plenty of reference regarding the references to the importance of leadership and organizational culture as far as the smooth functioning of an organization is concerned. A brief overview of the history of literature regarding the topic of leadership finds that the researches on leadership and organizational performances can be broadly classified into a number of relevant categories. Early researches on leadership emphasized on identifying the personality traits that characterized successful leaders. According to trait theories successful leaders are born and they have certain instinctive qualities that differentiate them from no leaders. However, the difficulty in classifying and corroborating these a ttributes led to a pervasive criticism that in turn paved way for the emergence of style and behavioral leadership approaches. Behavioral and style oriented leadership shifted the focus away from the attributes possessed by leaders to the behavior exhibited by them.

Global Positioning System Essay Example | Topics and Well Written Essays - 1250 words

Global Positioning System - Essay Example The system calculates the position of the receiver by Triangulation method, which is similar to manner in which a seismologist locates position of an earthquake epicentre using arrival time of seismic waves. When distance from one satellite is measured, the position gives us radius of a sphere. Similar measurement from another satellite gives another sphere intersecting the first in an overlapping region of a circle. The third measurement gives another sphere intersecting the circle at two points. Now one of the two points can be eliminated by either a fourth measurement, or due to unreasonable location or speed. Thus we have an accurate position of the GPS receiver. This position can be determined by just two measurements at sea level due to a well defined datum, and software assisted elimination of unreasonable datum. Now with known speed of signal and extremely accurate time keeping, the distance from the satellites can be calculated accurately. With more than four satellites normally visible at any given time, position calculated becomes more accurate with each additional satellite. Satellite Configuration Geometry causes the position information to be suspect due to position of satellites themselves, if they are bunched together the position accuracy will suffer negatively and if they are more or less well spread out in space, the accuracy is much better. This aspect is called Dilution of Position (DOP). GPS Signa Limitations and Future of GPS There are some inherent limitations of the GPS as given below: GPS Signal Reception. Accurate functioning of a GPS receiver requires at least four GPS satellites. These signals cannot penetrate water or soil. Hence, GPS cannot be used for underwater marine navigation or underground surveys like mines or tunnels. Similarly, in areas of skyscrapers or high surrounding terrain, the number of visible satellites or signal strength can fall below acceptable strength hampering GPS functioning. GPS Signal Integrity Monitoring. Since the datum for all calculations is GPS satellite, wrong satellite positions or wrong range measurements from satellites can be potentially disastrous. Thus GPS Integrity Channel (GIC) and Receiver Autonomous Integrity Monitoring (RAIM) are two schemes to accurately monitor integrity of signal information and warn the receiver whenever a conflict situation exists. GPS Signal Accuracy. A GPS receiver normally measures time taken for a signal to arrive at the receiver and converts it into range information. This measurement can be corrupted in many ways called collectively as User Equivalent Range error (UERE). These are corrected by directly deducting the known error from the calculations or reduce these errors by changing the way we make measurements. Uncorrected errors creep into the calculations causing different kinds of inaccuracies or errors affecting performance of the receiver. The future looks good with intense competition among world players to have their own GPS, mainly due to security aspirations. Russia, Europe and Japan are currently in advanced stage of system development/testing and many other regional countries are thinking about their own GPS. This would also lead to better accuracy and world wide acceptance of GPS for commercial and city use. The advantages would be better prices, more redundancy especially in the field of aviation and extensive market penetration due to hand held ground based GPS. The

Quality Assurance of Superficial Radiotherapy X-Ray Machine

Quality Assurance of Superficial Radiotherapy X-Ray Machine Study the Quality Assurance of Superficial Radiotherapy  X-ray Machine using some Techniques Abstract The aim of the present paper is to investigate some factors affecting on quality assurance of superficial radiotherapy x-ray such as reproducibility of dose out put, linearity, reference, entrance and some skin cancer doses were measured for hand, face and nose. Examinations of these factors are studied using Farmer dose master connected with 0.6 cc ionization chamber which was placed on the couch inside the selected field and contacted with an applicator to avoid any air gap inside a field size and 10 exposures were made. The measurements were carried out using an operating condition such as 50kV, 90mAs, 15mA 0.10 min, 6 sec. The tolerance limit for the reproducibility is equal to 0.2% , which is lower than the tolerance limit as mentioned. in American Association of physics in Medicine, AAPM . The relative Error for entrance skin dose equals 3%. The quality assurance tests of superficial radiotherapy x-ray machine are measured and compared with the international tolerance. Key words: Quality Assurance, Farmer dosemaster. .0.6 cc ionization chamber Introduction The principle goal of quality assurance of superficial x-ray machine is obtained accurately and timely assessment. The secondary goal is to maximize of radiation exposure and obtain high radiation quality. This can be assess by performance the x-ray machine by optimum operating parameters such as reproducibility of dose out put, linearity, Reference , Entrance and Exit dose measurements according to code safe of practice for use x-ray in medical diagnosis (NRL, 1994). [1]. Many associations reported work concerning quality assurance of superficial x-ray machine like , AAPM, [2,3] that describes quality assurance protocol for superficial radiotherapy x-ray equipment at the therapeutic technologist level. American Association of Medical Physicists in Medicine ~AAPM, [4] presents a new protocol, developed by the Radiation Therapy Committee Task Group 61, for reference dosimetry of low- and medium energy x rays for radiotherapy and radiobiology (40 kV(4) . Austerlitz C, et.al, 2008 mentioned that the beam outputs presented percent differences ranging from -13 to +25%.[5]. Mehran Goharian et.al , 2010 mentioned that The measured output showed an increase of up to 7.3% relative to the neutral position (0 ° in-plane and 0 ° cross-plane) over the possible range of angles of in-plane rotation for 75 kVp (half-value layer, HVL = 1.84 mm Al)[6]. Modern research indicated that the continued successful use of kilovoltage X-ray units for superficial therapy and their different design compared with linear accelerators indicates that specific advice for this type of equipment is required. Useful guidance on quality control of kilo-voltage units is also given in Klevenhagen.et.al [7] and Williams.et.al [8]. Paevans .et.al [9] mentioned that the applicator, system interlocks and dose monitor performance that used in check of Gulmay D3300 kilovoltage X-ray therapy unit were satisfactory and the tube leakage was below the UK recommended maximum (air kerma rate 300 mGy/ h at 5 cm from the tube head). The quality assurances of therapeutic x-ray are based on the Basic Safety Standard –BSS[10] and International Commission of Radiological Protection where they mentioned that there is no limit for medical exposure but they ensure that medical exposure have to decide by consultation between medical authorities and professional bodies . The aim of the present paper is to investigate some factors affecting on quality assurance of superficial radiotherapy x-ray such as reproducibility of dose out put, linearity, Reference, Entrance and Exit dose measurements. Material and Method The X-strahl superficial x-ray machine was investigated for some factors of quality assurance such as reproducibility and linearity . Reproducibility is one component of the precision of a test and reported as a standard deviation. Reproducibility of dose out put of X-strahl machine was measured with Farmer Dose master connected with 0.6 cc ionization chamber, which was placed on the couch inside the selected field and contacted with an applicator to avoid any air gap inside a field size and 10 exposures were made. The measurements were carried out using same operating condition such as 50kV, 90mAs, 15mA , 6 sec. The reproducibility Pz was calculated based on NEWZELAND Radiation Laboratory, NRL protocol (J.L.Plotti , 1995).[11]. Where: SD is the estimator of standard deviation of a series of measurements dose [mGy], Zap is the means value of the measured [dose [mGy]. Extensive measurements were made to assess of changes in mAs on reproducibility and linearity of radiation output. It formed over a range of clinical settings. Calibrated ionization chamber used to measure output expressed as ÃŽ ¼Gy per mAs, at a set distance, without backscatter. Linearity The linearity of superficial x-ray machine was studied using farmer dose master that connected with 0.6 cc ionization chamber above Perspex phantom. The linearity was checked using the next equation that stated by NEWZELAND Radiation Laboratory, NRL protocol (J.L.Plotti , 1995) .[11]. à ¯Ã†â€™Ã‚ §X1-X2à ¯Ã†â€™Ã‚ ª/X1+X2 à ¯Ã¢â€š ¬Ã‚ ¼0.1 Where X1 and X2 are two successive readings. Applications of superficial x-ray machine Measurement the Surface Radiotherapy Dose for Hands, Face and Nose were conducted using suitable applicator for each case. The applicator for hand treatment was 5 cm diameter, 15 FSD , the applicator for face treatment was 3 cm diameter , 15 FSD and the applicator for nose treatment was 1.5 cm diameter, 15 FSD. Results and Discussions Reproducibility Dose reproducibility for repeated doses of superficial x-ray machine was measured using farmer dosemaster connected with 0.6cc ionization chamber on the surface of Perspex phantom as shown in table 1. In the present work the maximum value was 4.404 , the minimum value was 4.374 and mean doses and standard deviation of the measurements was 4.391  ± 0.008 . The machine reproducibility was found to be 0.2% which is lower than the tolerance limit as mentioned. in NEWZELAND Radiation Laboratory, NRL protocol (J.L.Plotti , 1995) .[11]. Table 1 the Dose reproducibility for superficial radiotherapy machine using an operating condition of 50kV, 90mAs, 15mA , 6 sec. For 0.6 cc Ionization chamber. Dose, cGy 0.6 cc Run No. 4.374 1 4.386 2 4.388 3 4.394 4 4.394 5 4.386 6 4.390 7 4.391 8 4.404 9 4.401 10 4.391  ± 0.008 Mean  ± Standard Deviation Linearity of X-ray Machine The dose output was measured as a function in miliamper second. These measurements were recorded at 25 cm source to detector distance using special applicator of diameter 25 x 25 cm2 as shown in table.2. The linearity of the superficial x-ray machine was given a result lower than 0.1 that means it lower than the tolerance level of the American Association of physics in Medicine AAPM[3] and NEWZELAND Radiation Laboratory, NRL protocol (J.L.Plotti , 1995) .[11]. Linearity was accepted that means the x-ray tube of a machine is calibrated. Table 2. Linearity of superficial X-ray Machine Dose, , cGy mAs Time, sec Setting 23 30 6 50 kV, 5 Ma 30 60 12 45 150 30 72 240 48 90 300 60 . Measurement the Surface Radiotherapy Dose for Hands, Face and Nose The X-ray tube of the X-strahl machine was located in middle of the room surrounded by one meter from each side. The focus to skin distance, FSD for each applicator under use was adjusted for surface radiotherapy treatment such as hand, face and nose of tissue equivalent phantom. The Ionization chamber was adjusted for operating conditions of the X-ray machine as filter 1, 50kV, 5 mA, 0.2 min, and 0.2 mmAl for different applicators. The Surface dose for skin, nose and hand were recorded as shown in table 4. X-strahl -100 x-ray system low energy X-ray for treatment a wide range of superficial dermatological condition including: basal cell carcinoma, Squamous cell carcinoma and dermatological conditions including psoriasis. Orthovoltage units continue to be used today to treat superficial lesions; in fact, they were practically the only machines treating skin lesions before the recent emergence of electron therapy. The maximum dose from any of these low-energy units is found on the sur face of patients; thus, skin becomes the dose-limiting structure when treating patients at these energies. The depth at which the dose is 50% of the maximum is about 7 cm. Therefore the physician can be calculate the treatment dose for superficial x-ray therapy for each case. Since the total dose is equal to dose rate times the time , so, the time of treatment can calculate easily . Table 4. Entrance patient dose measurements for face, nose and hand.. ESD, (cGy) Case Applicator dimensions 56.68  ± 0.307 Face cancer 3 cm diameter , 15 FSD 241.2  ± 2.15 Nose cancer 1.5 cm diameter, 15 FSD 58.8  ± 0.669 Hand cancer 5 cm diameter, 15 FSD Conclusion This work concluded that The machine reproducibility dose out put was found to be 0.2% so patient risk will decrease. Linearity was lower than 0.1 which is lower than the tolerance limit of the international publications. The maximum dose from any of these low-energy units is found on the surface of patients; thus, skin.X-strahl machine treating skin lesions, hand, face and nose. The treatment time for hand, face, and nose cancer calculated via the surface patient dose measurement.